JB/T 5364-1991 Technical requirements for painting of sand treatment and cleaning equipment
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T5364-91
Sand treatment and cleaning equipment
Technical conditions for painting
Published on June 22, 1991
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Implementation on January 1, 1992
Mechanical Industry Standard of the People's Republic of China
Sand treatment and cleaning equipment
Technical conditions for painting
1 Subject content and scope of application
JB/T5364-91
This standard specifies the painting technical requirements, test methods, inspection rules and matching use of coatings for casting machinery. This standard applies to sand treatment, cleaning, sand dropping, smelting and pouring, transportation quantitative and other equipment (hereinafter referred to as equipment) in casting machinery. 2 Reference standards
GB1720
GB1723
GB1728
GB1729
GB1730
GB1731
GB1732
GB1733
GB1734
GB1743
GB1763
GB1770
GB5226
Determination of adhesion of paint film
Determination of viscosity of paint film
Determination of drying time of paint film and putty film
Determination of color and appearance
Determination of hardness Rod damping test
Flexibility determination method
Impact resistance determination method
Water resistance determination method
Gasoline resistance determination method
Gloss determination method
Paint film chemical resistance determination method
Primer, putty film, grinding determination method
General technical conditions for machine tool electrical equipment
JB2536
Painting, packaging, transportation of pressure vessels
3 Painting requirements
3.1 Requirements for metal decay surface before painting
3.1.1: Before painting, castings should generally be treated to remove rust, scale, molding sand and dirt on the surface, and the surface must be metallic in color. The surface of the casting should be smooth as far as possible, and flash and burrs are not allowed. Defects such as risers, depressions, and scars should be repaired. 3.1.2 Before painting, steel, plates, and riveted parts should be treated on the surface to remove flash, burrs, welding slag, surface oxide scale, and rust, so that the surface is the original color of the metal.
3.1.3 Before painting, non-ferrous metal parts should be cleaned or treated on the surface, and flash, burrs, etc. should be removed. 3.2 Painting process requirements
3.2.1 After the surface treatment inspection of castings, steel, plates, and riveted parts is qualified, primer should be applied in time. The primer should be applied evenly without missing any paint. After the primer is dry, transfer to the next process. 3.2.2 After the surface of non-ferrous metal parts is cleaned, phosphating primer must be applied, and then the matching zinc yellow primer should be applied after drying. 3.2.3 If the primer is found to be peeling or rusting on the parts and components that have been stored for a long time, the surface should be re-treated and the primer should be re-applied. Approved by the Ministry of Machinery and Electronics Industry on June 22, 1991 and implemented on January 1, 1992
JB/T5364-91
3.2.4 The painted surface of the castings of sand treatment and quantitative transportation equipment should be leveled with a well-matched room temperature chemical curing putty. The painted surface of the castings of sand removal and cleaning equipment is generally not puttyed. If there are defects, they can be repaired with putty. 3.2.5 The painted surface of the plates, profiles, pipe parts and welded parts is generally not puttyed. If there are defects that affect the appearance quality (including welds with poor appearance, etc.), putty can be used to properly repair them. 3.2.6 Putty should be applied in several times, and the leveling shall prevail. Each scraping must be done after the upper layer of putty is dry. 3.2.7 The thickness of putty layer: cast iron parts should generally not exceed 1.5mm, and local thickening should not exceed 3mm; cast steel parts should generally not exceed 2mm, and local thickening should not exceed 5mm.
3.2.8 Other fillers that reduce the quality shall not be added to the putty. 3.2.9 The appearance painting of the equipment is generally carried out after the final assembly and trial operation are qualified. When spraying the topcoat, if the relative humidity is greater than 70%, moisture-proof agent should be added or other measures should be taken to prevent the paint film from turning white. 3.2.10 Plastic parts, rubber parts, glass parts, instruments and meters, machine nameplates, signs and parts that require bluing (including bluing fasteners in the disassembly and adjustment parts), galvanizing, and chrome plating shall not be painted. All bluing fasteners that only serve as connection and fastening are allowed to be painted. 3.2.11. For components such as the cleaning chamber of the cleaning equipment that need to be welded and assembled at the user unit, the welding parts can only be painted with primer without topcoat. The topcoat of the welding parts shall be painted after the whole machine is installed and debugged; the turntable, trolley, floor and ceiling in the cleaning room shall only be painted with primer, not topcoat.
3.2.12 During the surface treatment and painting process of painted parts (components), each process must be inspected after completion, and the next process can be carried out only after passing the inspection.
3.3 Paint color requirements
3.3.1 The color of the paint on the appearance of the equipment should be beautiful, generous and harmonious in tone. The whole machine can be single or multi-color. Apple green, sky blue, cream yellow, green gray, bean green and other colors are recommended. Silver powder can be applied to the heated parts. It can also be determined by negotiation according to the order contract of the user unit. 3.3.2·The surface of the inner cavity of the equipment should be painted with light-colored paint. The parts in contact with the engine oil should be painted with engine oil-resistant paint. The inner wall of the electrical part shall meet the requirements of GB5226:
3.3.3 The paint color of the motor, oil pump and other purchased parts that are matched with the machine shall be the same as the main machine as much as possible. For non-exposed matching parts, if the paint layer is intact, the paint color of the original product can be maintained. 3.3.4 The emergency stop handle, button and parts that are prohibited from being touched by human body on the equipment shall be painted red. The main surface paint of the machine shall not be red.
The paint colors of various pipelines and their accessories are as follows: 3.3.54
Gas pipeline and pressure oil pipeline
Oil return pipe
Transformer oil pipe
d. "Air pipe
e Water pipe
High-pressure water pipe
Low-pressure water pipe
Cooling pipe
Lubricating and cleaning pipe
Electric wire pipeline is the same color as the host;
Red,
Yellow;
Red and yellow;
Blue;
Green;
Light green:
Silver gray;
Pipe original color:
Pipe accessories are the same color as the corresponding pipeline; Randomly exposed external The purchased parts should generally be the same color as the main color of the machine; small non-ferrous metal pipes, galvanized and chrome-plated metal pipes, non-metallic pipes, and blue or black treated parts shall not be painted; k.2
1. Long pipelines can be painted the same color as the machine, and one or more local marks (color rings or rectangular color blocks) shall be made in conspicuous parts according to the colors specified in this article.
3.3.6 When the equipment is working or moving, parts that are prone to collision and obviously unsafe parts should be painted with eye-catching safety signs (such as parts of large equipment that are prone to collision with cranes, horizontal opening and closing sand outlet doors of sand mixers, and automatic opening and closing doors of cleaning machines, etc.). The safety sign is orange 2
JB/T5364--91
(or yellow The yellow and black stripes are alternately inclined. The width of the yellow and black stripes can be appropriately different according to the size of the machine and the location of the safety signs. There must be no less than 2 stripes of each color. The inclined stripes are generally 45° to the horizontal plane. 3.3.7 The painting of pressure vessels shall comply with the provisions of JB2536. 3.4 Requirements for painting materials
3.4.1. The primer, putty, second primer, topcoat and thinner used must be matched. The paint should be self-drying and have good gloss, mechanical strength and weather resistance. 3.4.2
3.4.3 The quality indicators of the selected paint must comply with the current standards. 3.4.4·All selected paints should be made into test pieces identical to the actual coatings and tested for moisture and heat resistance, according to the provisions of Chapter 5. Oil resistance test, etc. 3.4.5 All kinds of coatings entering the factory should have a certificate of conformity. Stocks that have exceeded the storage period should be re-inspected according to the product's quality technical indicators and can only be used after passing the inspection.
3.4.6 For sand processing, sand removal, cleaning and other equipment, the coatings recommended in Appendix A (reference) can be selected. 3.5. Requirements for paint film
3.5.1. The coating of the equipment should be flat, the color and gloss should be uniform, and the gloss of the paint film should not be less than 70%. If artistic paint is used, the pattern should be uniform and the paint film should be plump.
3.5.2 The appearance of the paint film must be clean, without obvious protruding particles and adhesions. Defects such as depressions, sandpaper marks, sagging, blistering, whitening and loss of gloss are not allowed.
3.5.3. The painted surfaces of the assembly parts must have clear boundaries; the corners are clear and neat; different colors of paint must not be contaminated with each other. Paint film quality inspection items:
Appearance and color;
Gloss;
Adhesion;
Hardness,
Resistant to moisture and heat:
t...Resistant to engine oil.
4 Test method
4.1 Preparation of test pieces
4.1.1 The test pieces are made of A3 steel plate or HT200 cast iron plate (the same material as the main material of the main machine), the surface should be flat, without protrusions, burrs and obvious defects, and the edges should be chamfered. 4.1.2 The size of the test piece is 70mm×150mm×6mm. 4.1.3 The number of test pieces is 4 for each item, of which 3 are tested in parallel and 1 is a standard test piece for comparison. 4.1.4 The surface treatment and painting process before painting are the same as the actual painting process of the machine. 4.1.5 After the test piece is prepared, it must be placed indoors for 5 to 7 days before the test can be carried out. 4.2. Heat and humidity resistance test
4.2.1. Equipment and materials
The equipment is a temperature and humidity control box. Test 3 test pieces. 4.2.2. Method and cycle
Hang the test pieces in the box and keep a proper distance from each other. The temperature in the box is controlled at 47±2℃, and the relative humidity is above 95%. After the continuous test for 8 hours, open the door of the box and naturally drop to room temperature. The cycle (d) is 24 hours. During the test, check once every 3 days. The test is continuously carried out for 21 days before evaluation.
4.2.3 Evaluation standard
After the heat and humidity test, the test piece is evaluated according to the following table. The two parallel test pieces with the closest situation shall prevail. 3
Unqualified
JB/T5364-91
1. Slight loss of gloss (5%~20%)
2. Slight discoloration
3. The paint film is in good condition, no blistering, cracking, or falling off is allowed; the test piece is not allowed to rust1. More obvious loss of gloss (21%~50%)
2. More obvious discoloration
3. There are slight or individual micro-bubbles on the surface of the paint film (accounting for less than 10% of the total area), and medium and large bubbles are not allowed1. Severe loss of gloss (more than 50%)
2. Severe discoloration (hue change)
3. Obvious patches of micro-bubbles (accounting for more than 10% of the total area), or medium and large bubbles4. The test piece is rusted; the paint film is severely damaged such as cracking and falling off Note: The damage within 5mm of the test piece and caused by external factors are not counted. ② The degree of blistering is measured by the diameter of the bubble: the diameter of the micro bubble is less than 1mm, the diameter of the medium bubble is 1~5mm; the diameter of the large bubble is greater than .5mm. 4.3 Engine oil resistance test
4.3.1 Equipment and materials
The equipment is an oil container and 3 test specimens. 4.3.2. Method and cycle
Immerse half of the test specimen in a container containing 20% machine oil, keep a proper distance between the test specimens, and release the test specimens at room temperature. During the test, check once every 7 days, and evaluate after the test is carried out for 21 consecutive days. 4.3.3 Evaluation standard
Take out the test specimen, remove the machine oil with clean cotton yarn, and then observe whether there is blistering, shedding, cracking, wrinkles and other damage on the surface of the paint layer. If any of these phenomena occurs, it is unqualified. Among the 3 parallel test specimens, the two with the closest conditions shall prevail. 4.4 The color of the paint film shall be determined in accordance with GB1729.
4.5 The gloss of the paint film shall be measured in accordance with GB1743.
4.6 The adhesion of the paint film shall be measured in accordance with GB1720. 4.7 The drying time shall be measured in accordance with GB1728. Surface drying shall be measured in accordance with Method A, and actual drying shall be measured in accordance with Method B. 4.8 The hardness shall be measured in accordance with GB1730.
5 Inspection rules
Each equipment must be inspected for appearance, color and gloss, and each item must be qualified. 5.1
5.2 The adhesion and hardness items shall be inspected once for each batch of products. If the first inspection fails, a re-inspection shall be carried out. If the re-inspection fails, the batch of products shall not be accepted.
5.3 When the painting process and the painting materials are changed, the moisture and heat resistance and engine oil resistance tests shall be carried out. If the test fails, the painting process and the coating shall be changed until they pass before they can be used for product painting. 4
F53-34
Ethylene-containing phenolic acid
Ester-reducing aldehyde anti-rust dye
ZBG51005
(repackaging)
ZBG51G
F53-33
JB/T5364—91
Recommended paint for equipment
(reference)
Shaanxi red, zinc yellow, iron black
Various colors of epoxy primer
Iron red phenolic anti-rust paint epoxy primer
Various colors of alkyd primer
Iron red alkyd primer
ZBG51 010
ZBG51028
ZBG51048
2BG51040
Yellow-green translucent,
fast red, uneven hue
yellow film refining flat
1 Frozen film color and appearance
allow slight marks
Continued film flat
stable, paint film flat
2 Viscosity (coating-4 viscosity
meter) s
3 Drying time||tt| |4 Gloss %
6 Flexibility
7 Impact strength N·cm
8 Adhesion
Water resistance
10 Gasoline resistance
11 Putty scraping property
Imprinting property
≤30 (actually dry)
Student
Static film
Non-stick sand
Source sea border
Note: In No. 9 Water resistance, those soaked in salt water shall be tested according to Method A of GB1763. >50
≤24 (buy)
Touliangsa
ZB 051 050
Raw, no
flat, no coarse particles,
bubbles, no cracks after drying
≤100
Easy to paint, not
easy to scrape, no curling
Hanxue pipe installation plus
320 water sandpaper.
Polished into a flat product
even and smooth, non-stick code
Second coat primer
co6-10
Alkyd second coat primer
ZB 051 039
Yulin flat and smooth
Various colors of alkyd enamel
ZB 051 035
Light≤20%
All kinds of peroxide
Ethylene external enamel
ZBG51063
Black>90
Other colors≥80
1.400 twin baby instrument
>0.19(single camera)
Allow slight whitening without
bubbling, without falling off
no bubbling, no bagging;
beauty does not change
400 water sandpaper
grinding, uniform and smooth sand
Light camel yellow alkyd enamel
ZBG51035||t t||Light≤20%
Inspection basis
GB1729
GB1723
GB1728
GB1743
QB1730
GB1731
GB1732
GB1720
GB1733
GB1734
OB1770
Additional remarks:
JB/T5364—91
This standard is proposed by the Technical Committee for Standardization of Casting Machinery of the Ministry of Machinery and Electronics Industry. This standard is under the jurisdiction of the Jinan Foundry and Forging Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Qingdao Foundry Machinery Factory. The main drafters of this standard are Cao Chengxin, Peng Hanqing and Liu Shengde. From the date of implementation of this standard, the original JB/GQ3002-81 "Technical Conditions for Painting of Sand Processing and Cleaning Equipment" shall prevail. People's Republic of China
Mechanical Industry Standard
Sand Treatment, Cleaning Equipment
Painting Technical Conditions
JB/T5364-91
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing, Postal Code 100081)
Copyright reserved
Manufacturer may not reproduce
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
First edition in September 1991
Sheet 7/8
8 Words 14000
First printing in September 1991
Printing number 00.001-1000
Price 1.40 yuan
No. 019240 yuan
No.019240 yuan
No.0192Oil resistant.
4 Test method
4.1 Preparation of test pieces
4.1.1 The test pieces are made of A3 steel plate or HT200 cast iron plate (the same material as the main material of the main machine). The surface should be flat, without protrusions, burrs and obvious defects, and the edges should be chamfered. 4.1.2 The size of the test piece is 70mm×150mm×6mm. 4.1.3 The number of test pieces is 4 for each item, of which 3 are tested in parallel and 1 is a standard test piece for comparison. 4.1.4 The surface treatment and painting process before painting are the same as the actual painting process of the machine. 4.1.5 After the test piece is prepared, it must be placed indoors for 5 to 7 days before the test can be carried out. 4.2. Heat and humidity resistance test
4.2.1. Equipment and materials
The equipment is a temperature and humidity control box. 3 test pieces are tested. 4.2.2 Method and cycle
Hang the test pieces in the box and keep a proper distance from each other. The temperature in the box is controlled at 47±2℃ and the relative humidity is above 95%. After 8 hours of continuous testing, open the door of the box and naturally cool to room temperature. The cycle (d) is 24 hours. During the test, check every 3 days. The test is carried out for 21 days before evaluation.
4.2.3 Evaluation standard
After the wet heat test, the test pieces are evaluated according to the following table. The two parallel test pieces with the closest results shall prevail. 3
Unqualified
JB/T5364-91
1. Slight loss of gloss (5%~20%)
2. Slight discoloration
3. The paint film is in good condition, no blistering, cracking, or falling off is allowed; the test piece is not allowed to rust1. More obvious loss of gloss (21%~50%)
2. More obvious discoloration
3. There are slight or individual micro-bubbles on the surface of the paint film (accounting for less than 10% of the total area), and medium and large bubbles are not allowed1. Severe loss of gloss (more than 50%)
2. Severe discoloration (hue change)
3. Obvious patches of micro-bubbles (accounting for more than 10% of the total area), or medium and large bubbles4. The test piece is rusted; the paint film is severely damaged such as cracking and falling off Note: The damage within 5mm of the test piece and caused by external factors are not counted. ② The degree of blistering is measured by the diameter of the bubble: the diameter of the micro bubble is less than 1mm, the diameter of the medium bubble is 1~5mm; the diameter of the large bubble is greater than .5mm. 4.3 Engine oil resistance test
4.3.1 Equipment and materials
The equipment is an oil container and 3 test specimens. 4.3.2. Method and cycle
Immerse half of the test specimen in a container containing 20% machine oil, keep a proper distance between the test specimens, and release the test specimens at room temperature. During the test, check once every 7 days, and evaluate after the test is carried out for 21 consecutive days. 4.3.3 Evaluation standard
Take out the test specimen, remove the machine oil with clean cotton yarn, and then observe whether there is blistering, shedding, cracking, wrinkles and other damage on the surface of the paint layer. If any of these phenomena occurs, it is unqualified. Among the 3 parallel test specimens, the two with the closest conditions shall prevail. 4.4 The color of the paint film shall be determined in accordance with GB1729.
4.5 The gloss of the paint film shall be measured in accordance with GB1743.
4.6 The adhesion of the paint film shall be measured in accordance with GB1720. 4.7 The drying time shall be measured in accordance with GB1728. Surface drying shall be measured in accordance with Method A, and actual drying shall be measured in accordance with Method B. 4.8 The hardness shall be measured in accordance with GB1730.
5 Inspection rules
Each equipment must be inspected for appearance, color and gloss, and each item must be qualified. 5.1
5.2 The adhesion and hardness items shall be inspected once for each batch of products. If the first inspection fails, a re-inspection shall be carried out. If the re-inspection fails, the batch of products shall not be accepted.
5.3 When the painting process and the painting materials are changed, the moisture and heat resistance and engine oil resistance tests shall be carried out. If the test fails, the painting process and the coating shall be changed until they pass before they can be used for product painting. 4
F53-34
Ethylene-containing phenolic acid
Ester-reducing aldehyde anti-rust dye
ZBG51005
(repackaging)
ZBG51G
F53-33
JB/T5364—91
Recommended paint for equipment
(reference)
Shaanxi red, zinc yellow, iron black
Various colors of epoxy primer
Iron red phenolic anti-rust paint epoxy primer
Various colors of alkyd primer
Iron red alkyd primer
ZBG51 010
ZBG51028
ZBG51048
2BG51040
Yellow-green translucent,
fast red, uneven hue
yellow film refining flat
1 Frozen film color and appearance
allow slight marks
Continued film flat
stable, paint film flat
2 Viscosity (coating-4 viscosity
meter) s
3 Drying time||tt| |4 Gloss %
6 Flexibility
7 Impact strength N·cm
8 Adhesion
Water resistance
10 Gasoline resistance
11 Putty scraping property
Imprinting property
≤30 (actually dry)
Student
Static film
Non-stick sand
Source sea border
Note: In No. 9 Water resistance, those soaked in salt water shall be tested according to Method A of GB1763. >50
≤24 (buy)
Touliangsa
ZB 051 050
Raw, no
flat, no coarse particles,
bubbles, no cracks after drying
≤100
Easy to paint, not
easy to scrape, no curling
Hanxue pipe installation plus
320 water sandpaper.
Polished into a flat product
even and smooth, non-stick code
Second coat primer
co6-10
Alkyd second coat primer
ZB 051 039
Yulin flat and smooth
Various colors of alkyd enamel
ZB 051 035
Light≤20%
All kinds of peroxide
Ethylene external enamel
ZBG51063
Black>90
Other colors≥80
1.400 twin baby instrument
>0.19 (single camera)
Allow slight whitening without
bubbling, no falling
no bubbling, no bagging;
beauty does not change
400 water sandpaper
grinding, uniform and smooth sand
Light camel yellow alkyd enamel
ZBG51035||t t||Light≤20%
Inspection basis
GB1729
GB1723
GB1728
GB1743
QB1730
GB1731
GB1732
GB1720
GB1733
GB1734
OB1770
Additional remarks:
JB/T5364—91
This standard is proposed by the Technical Committee for Standardization of Casting Machinery of the Ministry of Machinery and Electronics Industry. This standard is under the jurisdiction of the Jinan Foundry and Forging Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Qingdao Foundry Machinery Factory. The main drafters of this standard are Cao Chengxin, Peng Hanqing and Liu Shengde. From the date of implementation of this standard, the original JB/GQ3002-81 "Technical Conditions for Painting of Sand Processing and Cleaning Equipment" shall prevail. People's Republic of China
Mechanical Industry Standard
Sand Treatment, Cleaning Equipment
Painting Technical Conditions
JB/T5364-91
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing, Postal Code 100081)
Copyright reserved
Manufacturer may not reproduce
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
First edition in September 1991
Sheet 7/8
8 Words 14000
First printing in September 1991
Printing number 00.001-1000
Price 1.40 yuan
No. 0192Oil resistant.
4 Test method
4.1 Preparation of test pieces
4.1.1 The test pieces are made of A3 steel plate or HT200 cast iron plate (the same material as the main material of the main machine). The surface should be flat, without protrusions, burrs and obvious defects, and the edges should be chamfered. 4.1.2 The size of the test piece is 70mm×150mm×6mm. 4.1.3 The number of test pieces is 4 for each item, of which 3 are tested in parallel and 1 is a standard test piece for comparison. 4.1.4 The surface treatment and painting process before painting are the same as the actual painting process of the machine. 4.1.5 After the test piece is prepared, it must be placed indoors for 5 to 7 days before the test can be carried out. 4.2. Heat and humidity resistance test
4.2.1. Equipment and materials
The equipment is a temperature and humidity control box. 3 test pieces are tested. 4.2.2 Method and cycle
Hang the test pieces in the box and keep a proper distance from each other. The temperature in the box is controlled at 47±2℃ and the relative humidity is above 95%. After 8 hours of continuous testing, open the door of the box and naturally cool to room temperature. The cycle (d) is 24 hours. During the test, check every 3 days. The test is carried out for 21 days before evaluation.
4.2.3 Evaluation standard
After the wet heat test, the test pieces are evaluated according to the following table. For 3 parallel test pieces, the two with the closest results shall prevail. 3
Unqualified
JB/T5364-91
1. Slight loss of gloss (5%~20%)
2. Slight discoloration
3. The paint film is in good condition, no blistering, cracking, or falling off is allowed; the test piece is not allowed to rust1. More obvious loss of gloss (21%~50%)
2. More obvious discoloration
3. There are slight or individual micro-bubbles on the surface of the paint film (accounting for less than 10% of the total area), and medium and large bubbles are not allowed1. Severe loss of gloss (more than 50%)
2. Severe discoloration (hue change)
3. Obvious patches of micro-bubbles (accounting for more than 10% of the total area), or medium and large bubbles4. The test piece is rusted; the paint film is severely damaged such as cracking and falling off Note: The damage within 5mm of the test piece and caused by external factors are not counted. ② The degree of blistering is measured by the diameter of the bubble: the diameter of the micro bubble is less than 1mm, the diameter of the medium bubble is 1~5mm; the diameter of the large bubble is greater than .5mm. 4.3 Engine oil resistance test
4.3.1 Equipment and materials
The equipment is an oil container and 3 test specimens. 4.3.2. Method and cycle
Immerse half of the test specimen in a container containing 20% machine oil, keep a proper distance between the test specimens, and release the test specimens at room temperature. During the test, check once every 7 days, and evaluate after the test is carried out for 21 consecutive days. 4.3.3 Evaluation standard
Take out the test specimen, remove the machine oil with clean cotton yarn, and then observe whether there is blistering, shedding, cracking, wrinkles and other damage on the surface of the paint layer. If any of these phenomena occurs, it is unqualified. Among the 3 parallel test specimens, the two with the closest conditions shall prevail. 4.4 The color of the paint film shall be determined in accordance with GB1729.
4.5 The gloss of the paint film shall be measured in accordance with GB1743.
4.6 The adhesion of the paint film shall be measured in accordance with GB1720. 4.7 The drying time shall be measured in accordance with GB1728. Surface drying shall be measured in accordance with Method A, and actual drying shall be measured in accordance with Method B. 4.8 The hardness shall be measured in accordance with GB1730.
5 Inspection rules
Each equipment must be inspected for appearance, color and gloss, and each item must be qualified. 5.1
5.2 The adhesion and hardness items shall be inspected once for each batch of products. If the first inspection fails, a re-inspection shall be carried out. If the re-inspection fails, the batch of products shall not be accepted.
5.3 When the painting process and the painting materials are changed, the moisture and heat resistance and engine oil resistance tests shall be carried out. If the test fails, the painting process and the coating shall be changed until they pass before they can be used for product painting. 4
F53-34
Ethylene-containing phenolic acid
Ester-reducing aldehyde anti-rust dye
ZBG51005
(repackaging)
ZBG51G
F53-33
JB/T5364—91
Recommended paint for equipment
(reference)
Shaanxi red, zinc yellow, iron black
Various colors of epoxy primer
Iron red phenolic anti-rust paint epoxy primer
Various colors of alkyd primer
Iron red alkyd primer
ZBG51 010
ZBG51028
ZBG51048
2BG51040
Yellow-green translucent,
fast red, uneven hue
yellow film refining flat
1 Frozen film color and appearance
allow slight marks
Continued film flat
stable, paint film flat
2 Viscosity (coating-4 viscosity
meter) s
3 Drying time||tt| |4 Gloss %
6 Flexibility
7 Impact strength N·cm
8 Adhesion
Water resistance
10 Gasoline resistance
11 Putty scraping property
Imprinting property
≤30 (actually dry)
Student
Static film
Non-stick sand
Source sea border
Note: In No. 9 Water resistance, those soaked in salt water shall be tested according to Method A of GB1763. >50
≤24 (buy)
Touliangsa
ZB 051 050
Raw, no
flat, no coarse particles,
bubbles, no cracks after drying
≤100
Easy to paint, not
easy to scrape, no curling
Hanxue pipe installation plus
320 water sandpaper.
Polished into a flat product
even and smooth, non-stick code
Second coat primer
co6-10
Alkyd second coat primer
ZB 051 039
Yulin flat and smooth
Various colors of alkyd enamel
ZB 051 035
Light≤20%
All kinds of peroxide
Ethylene external enamel
ZBG51063
Black>90
Other colors≥80
1.400 twin baby instrument
>0.19 (single camera)
Allow slight whitening without
bubbling, no falling
no bubbling, no bagging;
beauty does not change
400 water sandpaper
grinding, uniform and smooth sand
Light camel yellow alkyd enamel
ZBG51035||t t||Light≤20%
Inspection basis
GB1729
GB1723
GB1728
GB1743
QB1730
GB1731
GB1732
GB1720
GB1733
GB1734
OB1770
Additional remarks:
JB/T5364—91
This standard is proposed by the Technical Committee for Standardization of Casting Machinery of the Ministry of Machinery and Electronics Industry. This standard is under the jurisdiction of the Jinan Foundry and Forging Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Qingdao Foundry Machinery Factory. The main drafters of this standard are Cao Chengxin, Peng Hanqing and Liu Shengde. From the date of implementation of this standard, the original JB/GQ3002-81 "Technical Conditions for Painting of Sand Processing and Cleaning Equipment" shall prevail. People's Republic of China
Mechanical Industry Standard
Sand Treatment, Cleaning Equipment
Painting Technical Conditions
JB/T5364-91
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing, Postal Code 100081)
Copyright reserved
Manufacturer may not reproduce
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
First edition in September 1991
Sheet 7/8
8 Words 14000
First printing in September 1991
Printing number 00.001-1000
Price 1.40 yuan
No. 01923. The number of test pieces is 4 for each item, of which 3 are tested in parallel and 1 is a standard test piece for comparison. 4.1.4. The surface treatment and painting process before painting are the same as the actual painting process of the machine. 4.1.5. After the test piece is prepared, it must be placed indoors for 5 to 7 days before the test can be carried out. 4.2. Heat and humidity resistance test
4.2.1. Equipment and materials
The equipment is a temperature and humidity control box. 3 test pieces. 4.2.2. Method and cycle
Hang the test pieces in the box and keep a proper distance from each other. The temperature in the box is controlled at 47±2℃ and the relative humidity is above 95%. After the continuous test for 8 hours, open the door of the box and naturally drop to room temperature. The cycle (d) is 24 hours. During the test, check once every 3 days. The test is evaluated after 21 days of continuous testing.
4.2.3 Evaluation Standards
After the test pieces have been subjected to the damp heat test, they shall be evaluated according to the following table. For three parallel test pieces, the two with the closest results shall prevail. 3
Unqualified
JB/T5364-91
1. Slight loss of gloss (5%~20%)
2. Slight discoloration
3. The paint film is in good condition, no blistering, cracking, or falling off is allowed; the test piece is not allowed to rust1. More obvious loss of gloss (21%~50%)
2. More obvious discoloration
3. There are slight or individual micro-bubbles on the surface of the paint film (accounting for less than 10% of the total area), and medium and large bubbles are not allowed1. Severe loss of gloss (more than 50%)
2. Severe discoloration (hue change)
3. Obvious patches of micro-bubbles (accounting for more than 10% of the total area), or medium and large bubbles4. The test piece is rusted; the paint film is severely damaged such as cracking and falling off Note: The damage within 5mm of the test piece and caused by external factors are not counted. ② The degree of blistering is measured by the diameter of the bubble: the diameter of the micro bubble is less than 1mm, the diameter of the medium bubble is 1~5mm; the diameter of the large bubble is greater than .5mm. 4.3 Engine oil resistance test
4.3.1 Equipment and materials
The equipment is an oil container and 3 test specimens. 4.3.2. Method and cycle
Immerse half of the test specimen in a container containing 20% machine oil, keep a proper distance between the test specimens, and release the test specimens at room temperature. During the test, check once every 7 days, and evaluate after the test is carried out for 21 consecutive days. 4.3.3 Evaluation standard
Take out the test specimen, remove the machine oil with clean cotton yarn, and then observe whether there is blistering, shedding, cracking, wrinkles and other damage on the surface of the paint layer. If any of these phenomena occurs, it is unqualified. Among the 3 parallel test specimens, the two with the closest conditions shall prevail. 4.4 The color of the paint film shall be determined in accordance with GB1729.
4.5 The gloss of the paint film shall be measured in accordance with GB1743.
4.6 The adhesion of the paint film shall be measured in accordance with GB1720. 4.7 The drying time shall be measured in accordance with GB1728. Surface drying shall be measured in accordance with Method A, and actual drying shall be measured in accordance with Method B. 4.8 The hardness shall be measured in accordance with GB1730.
5 Inspection rules
Each equipment must be inspected for appearance, color and gloss, and each item must be qualified. 5.1
5.2 The adhesion and hardness items shall be inspected once for each batch of products. If the first inspection fails, a re-inspection shall be carried out. If the re-inspection fails, the batch of products shall not be accepted.
5.3 When the painting process and the painting materials are changed, the moisture and heat resistance and engine oil resistance tests shall be carried out. If the test fails, the painting process and the coating shall be changed until they pass before they can be used for product painting. 4
F53-34
Ethylene-containing phenolic acid
Ester-reducing aldehyde anti-rust dye
ZBG51005
(repackaging)
ZBG51G
F53-33
JB/T5364—91
Recommended paint for equipment
(reference)
Shaanxi red, zinc yellow, iron black
Various colors of epoxy primer
Iron red phenolic anti-rust paint epoxy primer
Various colors of alkyd primer
Iron red alkyd primer
ZBG51 010
ZBG51028
ZBG51048
2BG51040
Yellow-green translucent,
fast red, uneven hue
yellow film refining flat
1 Frozen film color and appearance
allow slight marks
Continued film flat
stable, paint film flat
2 Viscosity (coating-4 viscosity
meter) s
3 Drying time||tt| |4 Gloss %
6 Flexibility
7 Impact strength N·cm
8 Adhesion
Water resistance
10 Gasoline resistance
11 Putty scraping property
Imprinting property
≤30 (actually dry)
Student
Static film
Non-stick sand
Source sea border
Note: In No. 9 Water resistance, those soaked in salt water shall be tested according to Method A of GB1763. >50
≤24 (buy)
Touliangsa
ZB 051 050
Raw, no
flat, no coarse particles,
bubbles, no cracks after drying
≤100
Easy to paint, not
easy to scrape, no curling
Hanxue pipe installation plus
320 water sandpaper.
Polished into a flat product
even and smooth, non-stick code
Second coat primer
co6-10
Alkyd second coat primer
ZB 051 039
Yulin flat and smooth
Various colors of alkyd enamel
ZB 051 035
Light≤20%
All kinds of peroxide
Ethylene external enamel
ZBG51063
Black>90
Other colors≥80
1.400 twin baby instrument
>0.19 (single camera)
Allow slight whitening without
bubbling, no falling
no bubbling, no bagging;
beauty does not change
400 water sandpaper
grinding, uniform and smooth sand
Light camel yellow alkyd enamel
ZBG51035||t t||Light≤20%
Inspection basis
GB1729
GB1723
GB1728
GB1743
QB1730
GB1731
GB1732
GB1720
GB1733
GB1734
OB1770
Additional remarks:
JB/T5364—91
This standard is proposed by the Technical Committee for Standardization of Casting Machinery of the Ministry of Machinery and Electronics Industry. This standard is under the jurisdiction of the Jinan Foundry and Forging Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Qingdao Foundry Machinery Factory. The main drafters of this standard are Cao Chengxin, Peng Hanqing and Liu Shengde. From the date of implementation of this standard, the original JB/GQ3002-81 "Technical Conditions for Painting of Sand Processing and Cleaning Equipment" shall prevail. People's Republic of China
Mechanical Industry Standard
Sand Treatment, Cleaning Equipment
Painting Technical Conditions
JB/T5364-91
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing, Postal Code 100081)
Copyright reserved
Manufacturer may not reproduce
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
First edition in September 1991
Sheet 7/8
8 Words 14000
First printing in September 1991
Printing number 00.001-1000
Price 1.40 yuan
No. 01923. The number of test pieces is 4 for each item, of which 3 are tested in parallel and 1 is a standard test piece for comparison. 4.1.4. The surface treatment and painting process before painting are the same as the actual painting process of the machine. 4.1.5. After the test piece is prepared, it must be placed indoors for 5 to 7 days before the test can be carried out. 4.2. Heat and humidity resistance test
4.2.1. Equipment and materials
The equipment is a temperature and humidity control box. 3 test pieces. 4.2.2. Method and cycle
Hang the test pieces in the box and keep a proper distance from each other. The temperature in the box is controlled at 47±2℃ and the relative humidity is above 95%. After the continuous test for 8 hours, open the door of the box and naturally drop to room temperature. The cycle (d) is 24 hours. During the test, check once every 3 days. The test is evaluated after 21 days of continuous testing.
4.2.3 Evaluation Standards
After the test pieces have been subjected to the damp heat test, they shall be evaluated according to the following table. For three parallel test pieces, the two with the closest results shall prevail. 3
Unqualified
JB/T5364-91
1. Slight loss of gloss (5%~20%)
2. Slight discoloration
3. The paint film is in good condition, no blistering, cracking, or falling off is allowed; the test piece is not allowed to rust1. More obvious loss of gloss (21%~50%)
2. More obvious discoloration
3. There are slight or individual micro-bubbles on the surface of the paint film (accounting for less than 10% of the total area), and medium and large bubbles are not allowed1. Severe loss of gloss (more than 50%)
2. Severe discoloration (hue change)
3. Obvious patches of micro-bubbles (accounting for more than 10% of the total area), or medium and large bubbles4. The test piece is rusted; the paint film is severely damaged such as cracking and falling off Note: The damage within 5mm of the test piece and caused by external factors are not counted. ② The degree of blistering is measured by the diameter of the bubble: the diameter of the micro bubble is less than 1mm, the diameter of the medium bubble is 1~5mm; the diameter of the large bubble is greater than .5mm. 4.3 Engine oil resistance test
4.3.1 Equipment and materials
The equipment is an oil container and 3 test specimens. 4.3.2. Method and cycle
Immerse half of the test specimen in a container containing 20% machine oil, keep a proper distance between the test specimens, and release the test specimens at room temperature. During the test, check once every 7 days, and evaluate after the test is carried out for 21 consecutive days. 4.3.3 Evaluation standard
Take out the test specimen, remove the machine oil with clean cotton yarn, and then observe whether the paint surface has blistering, shedding, cracking, wrinkles and other damage. If any of these phenomena occurs, it is unqualified. Among the 3 parallel test specimens, the two with the closest conditions shall prevail. 4.4 The color of the paint film shall be determined in accordance with GB1729.
4.5 The gloss of the paint film shall be measured in accordance with GB1743.
4.6 The adhesion of the paint film shall be measured in accordance with GB1720. 4.7 The drying time shall be measured in accordance with GB1728. Surface drying shall be measured in accordance with Method A, and actual drying shall be measured in accordance with Method B. 4.8 The hardness shall be measured in accordance with GB1730.
5 Inspection rules
Each equipment must be inspected for appearance, color and gloss, and each item must be qualified. 5.1
5.2 The adhesion and hardness items shall be inspected once for each batch of products. If the first inspection fails, a re-inspection shall be carried out. If the re-inspection fails, the batch of products shall not be accepted.
5.3 When the painting process and the painting materials are changed, the moisture and heat resistance and engine oil resistance tests shall be carried out. If the test fails, the painting process and the coating shall be changed until they pass before they can be used for product painting. 4
F53-34
Ethylene-containing phenolic acid
Ester-reducing aldehyde anti-rust dye
ZBG51005
(repackaging)
ZBG51G
F53-33
JB/T5364—91
Recommended paint for equipment
(reference)
Shaanxi red, zinc yellow, iron black
Various colors of epoxy primer
Iron red phenolic anti-rust paint epoxy primer
Various colors of alkyd primer
Iron red alkyd primer
ZBG51 010
ZBG51028
ZBG51048
2BG51040
Yellow-green translucent,
fast red, uneven hue
yellow film refining flat
1 Frozen film color and appearance
allow slight marks
Continued film flat
stable, paint film flat
2 Viscosity (coating-4 viscosity
meter) s
3 Drying time||tt| |4 Gloss %
6 Flexibility
7 Impact strength N·cm
8 Adhesion
Water resistance
10 Gasoline resistance
11 Putty scraping property
Imprinting property
≤30 (actually dry)
Student
Static film
Non-stick sand
Source sea border
Note: In No. 9 Water resistance, those soaked in salt water shall be tested according to Method A of GB1763. >50
≤24 (buy)
Touliangsa
ZB 051 050
Raw, no
flat, no coarse particles,
bubbles, no cracks after drying
≤100
Easy to paint, not
easy to scrape, no curling
Hanxue pipe installation plus
320 water sandpaper.
Polished into a flat product
even and smooth, non-stick code
Second coat primer
co6-10
Alkyd second coat primer
ZB 051 039
Yulin flat and smooth
Various colors of alkyd enamel
ZB 051 035
Light≤20%
All kinds of peroxide
Ethylene external enamel
ZBG51063
Black>90
Other colors≥80
1.400 twin baby instrument
>0.19 (single camera)
Allow slight whitening without
bubbling, no falling
no bubbling, no bagging;
beauty does not change
400 water sandpaper
grinding, uniform and smooth sand
Light camel yellow alkyd enamel
ZBG51035||t t||Light≤20%
Inspection basis
GB1729
GB1723
GB1728
GB1743
QB1730
GB1731
GB1732
GB1720
GB1733
GB1734
OB1770
Additional remarks:
JB/T5364—91
This standard is proposed by the Technical Committee for Standardization of Casting Machinery of the Ministry of Machinery and Electronics Industry. This standard is under the jurisdiction of the Jinan Foundry and Forging Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Qingdao Foundry Machinery Factory. The main drafters of this standard are Cao Chengxin, Peng Hanqing and Liu Shengde. From the date of implementation of this standard, the original JB/GQ3002-81 "Technical Conditions for Painting of Sand Processing and Cleaning Equipment" shall prevail. People's Republic of China
Mechanical Industry Standard
Sand Treatment, Cleaning Equipment
Painting Technical Conditions
JB/T5364-91
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing, Postal Code 100081)
Copyright reserved
Manufacturer may not reproduce
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
First edition in September 1991
Sheet 7/8
8 Words 14000
First printing in September 1991
Printing number 00.001-1000
Price 1.40 yuan
No. 01923 Evaluation Standards
After the test pieces have been subjected to the damp heat test, they shall be evaluated according to the following table. For three parallel test pieces, the two with the closest results shall prevail. 3
Unqualified
JB/T5364-91
1. Slight loss of gloss (5%~20%)
2. Slight discoloration
3. The paint film is in good condition, no blistering, cracking, or falling off is allowed; the test piece is not allowed to rust1. More obvious loss of gloss (21%~50%)
2. More obvious discoloration
3. There are slight or individual micro-bubbles on the surface of the paint film (accounting for less than 10% of the total area), and medium and large bubbles are not allowed1. Severe loss of gloss (more than 50%)
2. Severe discoloration (hue change)
3. Obvious patches of micro-bubbles (accounting for more than 10% of the total area), or medium and large bubbles4. The test piece is rusted; the paint film is severely damaged such as cracking and falling off Note: The damage within 5mm of the test piece and caused by external factors are not counted. ② The degree of blistering is measured by the diameter of the bubble: the diameter of the micro bubble is less than 1mm, the diameter of the medium bubble is 1~5mm; the diameter of the large bubble is greater than .5mm. 4.3 Engine oil resistance test
4.3.1 Equipment and materials
The equipment is an oil container and 3 test specimens. 4.3.2. Method and cycle
Immerse half of the test specimen in a container containing 20% machine oil, keep a proper distance between the test specimens, and release the test specimens at room temperature. During the test, check once every 7 days, and evaluate after the test is carried out for 21 consecutive days. 4.3.3 Evaluation standard
Take out the test specimen, remove the machine oil with clean cotton yarn, and then observe whether the paint surface has blistering, shedding, cracking, wrinkles and other damage. If any of these phenomena occurs, it is unqualified. Among the 3 parallel test specimens, the two with the closest conditions shall prevail. 4.4 The color of the paint film shall be determined in accordance with GB1729.
4.5 The gloss of the paint film shall be measured in accordance with GB1743.
4.6 The adhesion of the paint film shall be measured in accordance with GB1720. 4.7 The drying time shall be measured in accordance with GB1728. Surface drying shall be measured in accordance with Method A, and actual drying shall be measured in accordance with Method B. 4.8 The hardness shall be measured in accordance with GB1730.
5 Inspection rules
Each equipment must be inspected for appearance, color and gloss, and each item must be qualified. 5.1
5.2 The adhesion and hardness items shall be inspected once for each batch of products. If the first inspection fails, a re-inspection shall be carried out. If the re-inspection fails, the batch of products shall not be accepted.
5.3 When the painting process and the painting materials are changed, the moisture and heat resistance and engine oil resistance tests shall be carried out. If the test fails, the painting process and the coating shall be changed until they pass before they can be used for product painting. 4
F53-34
Ethylene-containing phenolic acid
Ester-reducing aldehyde anti-rust dye
ZBG51005
(repackaging)
ZBG51G
F53-33
JB/T5364—91
Recommended paint for equipment
(reference)
Shaanxi red, zinc yellow, iron black
Various colors of epoxy primer
Iron red phenolic anti-rust paint epoxy primer
Various colors of alkyd primer
Iron red alkyd primer
ZBG51 010
ZBG51028
ZBG51048
2BG51040
Yellow-green translucent,
fast red, uneven hue
yellow film refining flat
1 Frozen film color and appearance
allow slight marks
Continued film flat
stable, paint film flat
2 Viscosity (coating-4 viscosity
meter) s
3 Drying time||tt| |4 Gloss %
6 Flexibility
7 Impact strength N·cm
8 Adhesion
Water resistance
10 Gasoline resistance
11 Putty scraping property
Imprinting property
≤30 (actually dry)
Student
Static film
Non-stick sand
Source sea border
Note: In No. 9 Water resistance, those soaked in salt water shall be tested according to Method A of GB1763. >50
≤24 (buy)
Touliangsa
ZB 051 050
Raw, no
flat, no coarse particles,
bubbles, no cracks after drying
≤100
Easy to paint, not
easy to scrape, no curling
Hanxue pipe installation plus
320 water sandpaper.
Polished into a flat product
even and smooth, non-stick code
Second coat primer
co6-10
Alkyd second coat primer
ZB 051 039
Yulin flat and smooth
Various colors of alkyd enamel
ZB 051 035
Light≤20%
All kinds of peroxide
Ethylene external enamel
ZBG51063
Black>90
Other colors≥80
1.400 twin baby instrument
>0.19 (single camera)
Allow slight whitening without
bubbling, no falling
no bubbling, no bagging;
beauty does not change
400 water sandpaper
grinding, uniform and smooth sand
Light camel yellow alkyd enamel
ZBG51035||t t||Light≤20%
Inspection basis
GB1729
GB1723
GB1728
GB1743
QB1730
GB1731
GB1732
GB1720
GB1733
GB1734
OB1770
Additional remarks:
JB/T5364—91
This standard is proposed by the Technical Committee for Standardization of Casting Machinery of the Ministry of Machinery and Electronics Industry. This standard is under the jurisdiction of the Jinan Foundry and Forging Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Qingdao Foundry Machinery Factory. The main drafters of this standard are Cao Chengxin, Peng Hanqing and Liu Shengde. From the date of implementation of this standard, the original JB/GQ3002-81 "Technical Conditions for Painting of Sand Processing and Cleaning Equipment" shall prevail. People's Republic of China
Mechanical Industry Standard
Sand Treatment, Cleaning Equipment
Painting Technical Conditions
JB/T5364-91
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing, Postal Code 100081)
Copyright reserved
Manufacturer may not reproduce
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
First edition in September 1991
Sheet 7/8
8 Words 14000
First printing in September 1991
Printing number 00.001-1000
Price 1.40 yuan
No. 01923 Evaluation Standards
After the test pieces have been subjected to the damp heat test, they shall be evaluated according to the following table. For three parallel test pieces, the two with the closest results shall prevail. 3
Unqualified
JB/T5364-91
1. Slight loss of gloss (5%~20%)
2. Slight discoloration
3. The paint film is in good condition, no blistering, cracking, or falling off is allowed; the test piece is not allowed to rust1. More obvious loss of gloss (21%~50%)
2. More obvious discoloration
3. There are slight or individual micro-bubbles on the surface of the paint film (accounting for less than 10% of the total area), and medium and large bubbles are not allowed1. Severe loss of gloss (more than 50%)
2. Severe discoloration (hue change)
3. Obvious patches of micro-bubbles (accounting for more than 10% of the total area), or medium and large bubbles4. The test piece is rusted; the paint film is severely damaged such as cracking and falling off Note: The damage within 5mm of the test piece and caused by external factors are not counted. ② The degree of blistering is measured by the diameter of the bubble: the diameter of the micro bubble is less than 1mm, the diameter of the medium bubble is 1~5mm; the diameter of the large bubble is greater than .5mm. 4.3 Engine oil resistance test
4.3.1 Equipment and materials
The equipment is an oil container and 3 test specimens. 4.3.2. Method and cycle
Immerse half of the test specimen in a container containing 20% machine oil, keep a proper distance between the test specimens, and release the test specimens at room temperature. During the test, check once every 7 days, and evaluate after the test is carried out for 21 consecutive days. 4.3.3 Evaluation standard
Take out the test specimen, remove the machine oil with clean cotton yarn, and then observe whether there is blistering, shedding, cracking, wrinkles and other damage on the surface of the paint layer. If any of these phenomena occurs, it is unqualified. Among the 3 parallel test specimens, the two with the closest conditions shall prevail. 4.4 The color of the paint film shall be determined in accordance with GB1729.
4.5 The gloss of the paint film shall be measured in accordance with GB1743.
4.6 The adhesion of the paint film shall be measured in accordance with GB1720. 4.7 The drying time shall be measured in accordance with GB1728. Surface drying shall be measured in accordance with Method A, and actual drying shall be measured in accordance with Method B. 4.8 The hardness shall be measured in accordance with GB1730.
5 Inspection rules
Each equipment must be inspected for appearance, color and gloss, and each item must be qualified. 5.1
5.2 The adhesion and hardness items shall be inspected once for each batch of products. If the first inspection fails, a re-inspection shall be carried out. If the re-inspection fails, the batch of products shall not be accepted.
5.3 When the painting process and the painting materials are changed, the moisture and heat resistance and engine oil resistance tests shall be carried out. If the test fails, the painting process and the coating shall be changed until they pass before they can be used for product painting. 4
F53-34
Ethylene-containing phenolic acid
Ester-reducing aldehyde anti-rust dye
ZBG51005
(repackaging)
ZBG51G
F53-33
JB/T5364—91
Recommended paint for equipment
(reference)
Shaanxi red, zinc yellow, iron black
Various colors of epoxy primer
Iron red phenolic anti-rust paint epoxy primer
Various colors of alkyd primer
Iron red alkyd primer
ZBG51 010
ZBG51028
ZBG51048
2BG51040
Yellow-green translucent,
fast red, uneven hue
yellow film refining flat
1 Frozen film color and appearance
allow slight marks
Continued film flat
stable, paint film flat
2 Viscosity (coating-4 viscosity
meter) s
3 Drying time||tt| |4 Gloss %
6 Flexibility
7 Impact strength N·cm
8 Adhesion
Water resistance
10 Gasoline resistance
11 Putty scraping property
Imprinting property
≤30 (actually dry)
StudentwwW.bzxz.Net
Static film
Non-stick sand
Source sea border
Note: In No. 9 Water resistance, those soaked in salt water shall be tested according to Method A of GB1763. >50
≤24 (buy)
Touliangsa
ZB 051 050
Raw, no
flat, no coarse particles,
bubbles, no cracks after drying
≤100
Easy to paint, not
easy to scrape, no curling
Hanxue pipe installation plus
320 water sandpaper.
Polished into a flat product
even and smooth, non-stick code
Second coat primer
co6-10
Alkyd second coat primer
ZB 051 039
Yulin flat and smooth
Various colors of alkyd enamel
ZB 051 035
Light≤20%
All kinds of peroxide
Ethylene external enamel
ZBG51063
Black>90
Other colors≥80
1.400 twin baby instrument
>0.19 (single camera)
Allow slight whitening without
bubbling, no falling
no bubbling, no bagging;
beauty does not change
400 water sandpaper
grinding, uniform and smooth sand
Light camel yellow alkyd enamel
ZBG51035||t t||Light≤20%
Inspection basis
GB1729
GB1723
GB1728
GB1743
QB1730
GB1731
GB1732
GB1720
GB1733
GB1734
OB1770
Additional remarks:
JB/T5364—91
This standard is proposed by the Technical Committee for Standardization of Casting Machinery of the Ministry of Machinery and Electronics Industry. This standard is under the jurisdiction of the Jinan Foundry and Forging Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Qingdao Foundry Machinery Factory. The main drafters of this standard are Cao Chengxin, Peng Hanqing and Liu Shengde. From the date of implementation of this standard, the original JB/GQ3002-81 "Technical Conditions for Painting of Sand Processing and Cleaning Equipment" shall prevail. People's Republic of China
Mechanical Industry Standard
Sand Treatment, Cleaning Equipment
Painting Technical Conditions
JB/T5364-91
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing, Postal Code 100081)
Copyright reserved
Manufacturer may not reproduce
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
First edition in September 1991
Sheet 7/8
8 Words 14000
First printing in September 1991
Printing number 00.001-1000
Price 1.40 yuan
No. 01923 Evaluation Standards
Take out the test piece, remove the machine oil with clean cotton yarn, and then observe whether the paint layer surface is damaged by blistering, shedding, cracking, wrinkles, etc. If any of these phenomena occurs, it is unqualified. Among the three parallel test pieces, the two with the closest conditions shall prevail. 4.4 The color of the paint film shall be measured in accordance with GB1729.
4.5 The gloss of the paint film shall be measured in accordance with GB1743.
4.6 The adhesion of the paint film shall be measured in accordance with GB1720. 4.7 The drying time shall be measured in accordance with GB1728. Surface drying shall be measured according to Method A, and actual drying shall be measured according to Method B. 4.8 The hardness shall be measured according to GB1730.
5 Inspection Rules
Each equipment must be inspected for appearance, color and gloss, and each item must be qualified.
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