This standard specifies the requirements, test methods and inspection rules for the painting of electrical equipment products. This standard applies to the painting of electrical equipment products. JB/T 4328.9-1999 General technical conditions for the painting of electrical equipment products JB/T4328.9-1999 Standard download decompression password: www.bzxz.net

JB/T4328.9—1999
This standard is a revision of JB4328.91986 Electrician Special Equipment. Appendix A and Appendix B of this standard are both appendices of the standard. This standard replaces JB4328.9—1986 from the date of implementation.
This standard is proposed and managed by Shenyang Electrician Special Equipment Research Institute. This standard is drafted by Shenyang Electrician Special Equipment Research Institute. The main drafter of this standard: Chen Jiashan.
This standard was first issued on December 1, 1986, and this standard was revised for the first time. Shenyang Electrician Special Equipment Research Institute is entrusted with the interpretation of this standard. 524
Machinery Industry Standard of the People's Republic of China
General Technical Conditions for Painting of Special Electrician Equipment
Painting general requirements for the electrician special equipmentScope
This standard specifies the requirements, test methods and inspection rules for painting of special electrician equipment products. This standard applies to the painting of special electrician equipment products. 2 Referenced standards
JB/T4328.9-1999
Replaces JB4328.9--1986
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T1720—1979
Determination of adhesion of paint films
GB/T1728-1979
GB/T1730—1993
GB/T1731—1993
GB/T1732—1993
GB/T1743—1979
GB/T17641979
GB/T 1771—1991
3 Requirements
3.1 Requirements for coated surfaces
Determination of drying time of paint film and putty film
Determination of paint film hardness Pendulum damping test (eqvIS1522:1973)Determination of paint film flexibility (neqTOCT6806:1973)Determination of paint film impact resistance (neqFOCT4765:1973)Determination of paint film glossiness
Determination of paint film thickness
Determination of neutral salt spray resistance
Paint and varnish
3.1.1 Non-dense oxide scale, rust, molding sand, welding slag, dust, oil stains, etc. on the metal surface must be removed. 3.1.2 The painted surface of the casting should be flat, and its flatness error should not be greater than 3mm over any 600mm length. 3.1.3 Castings are not allowed to have obvious defects such as seams, depressions, flash, and bulges. They should be repaired to meet the requirements of Article 3.1.2 before painting.
3.1.4 For surfaces treated with sandblasting (shot), primer should be applied immediately after sandblasting (shot), and heat-resistant paint should be applied immediately for parts with heat-resistant requirements.
5 For products exported abroad, there are requirements for salt spray protection. Products that need phosphating should be phosphating immediately after sandblasting, or phosphating primer should be applied, and then other paints can be applied.
3.1.6 The cleaning of the painted surface can be carried out by manual shoveling, filing, repairing, grinding, pickling, sandblasting, phosphating, etc. according to the situation. 3.1.7 The surface of the workpiece and test piece after phosphating should have a uniform, matte light gray to dark gray. 3.1.8
If there are defects such as scars and depressions on the surface of parts, putty should be used to make them smooth. 9After cleaning and applying primer to the surface of parts, wait until they are completely dry before putting them smooth. 3.1.9
Approved by the State Machinery Industry Bureau on August 6, 1999, implemented on January 1, 2000
JB/T4328.9--1999
3.1.10When it is necessary to change the type of paint, the original paint layer should be completely removed, cleaned, and puttyed again after drying. 3.1.11 Requirements for puttying quality
a) Putty must be firmly attached to the puttyed surface and must not fall off; b) Putty should be evenly applied in batches, and the next layer should be applied after the previous layer is dry. Each layer should be scraped thinly, and its thickness should not exceed 1mm to prevent falling off;
c) There should be no coarse particles and scratches on the puttying surface; d) The puttying surface should not shrink or crack after drying. 3.2 Requirements for painting construction conditions
3.2.1 The painting environment should be clean, dust-free, dry and well ventilated, and away from flammable and explosive items. 3.2.2 The painting construction site should be isolated from the crowd site, and necessary measures should be taken to prevent environmental pollution. 3.2.3 The temperature of the painting construction site should be kept within the range of (15~35)℃. 3.2.4 It is not suitable to paint under the scorching sun or in the environment of snow, frost, and rain. When the relative humidity of the working environment is greater than 70%, moisture-proof agent should be added or other measures should be taken to prevent the paint film from turning white. 3.2.5
3.3 Parts and parts that should not be painted
3.3.1 Parts that need to be frequently twisted or touched during the operation of the product. Such as screws, nuts, operating parts (hand wheels, handles, buttons, etc.). For parts made of materials such as aluminum, copper, plastic and rubber, and the surfaces of parts that have been electroplated or fluorinated. 3.3.2
The color, color matching and style of the product shall be implemented in accordance with the product standards or order contracts, and its color shall refer to the provisions of Table 1. 3.4
Grassroot green
Bean green
《Paint-resistant）
Outer surface of general machines and parts
Scope of application and application examples
Outer surface of main machine, auxiliary machine and parts of complete set of equipment Exposed random accessories and standard parts (such as motors, electrical appliances, etc.) Machines or parts of machines in contact with dirty objects (such as furnace shell, ladle, funnel, crusher, basic frame) Lever system inside the machine
Pipes (pipes and pipe fittings) without special requirements Inside the electrical box
Exposed high Non-machined surfaces of high-speed rotating parts (wheel spokes, webs, etc. of flywheels, pulleys, gears, traveling wheels, etc.) Safety buttons, hazard symbols and grounding symbols External surfaces of refueling devices (such as oil nozzles, oil filling holes, oil cups, oil injectors, pressure lubricators, etc.) Internal surfaces of bearing seats and bearing covers
Inner surfaces of oil-containing parts (such as oil tanks, reducer bodies, machine covers, etc.) External surfaces of pressure vessels, heat transfer (dissipation) parts, aluminum powder manufacturing equipment 3.5 Principles for selecting paint film accuracy
JB/T4328.9-1999
The paint film accuracy grade shall be in accordance with the provisions of Table 2. Table 2
Zhenmo Precision
Grade of Degree
Scope of Application
High-grade Decoration
High-grade
General Decoration
Non-decoration
Surface Condition of Paint Film
Excellent color, surface is discerning, bright and clean, visually free of impurities, stains, brush marks and trimming marks The color is very good, the surface is smooth and even, visually free of obvious impurities, stains and brush marks, and not obvious local trimming marks are allowed The color is good, the surface is relatively smooth and uniform, and not obvious large-area trimming marks are allowed Requirements Can prevent deer erosion, and there shall be no accumulation and missing coating The choice of paint film accuracy level shall meet the requirements of product standards or supply contracts. According to the structural characteristics of the product, the paint film accuracy of the outer surface of thin-walled iron parts, racks, furnaces, rollers and other parts shall not be lower than Grade III 3.5.3
For castings with decorative requirements, the paint film accuracy shall not be lower than Grade II. 3.5.4 The same product can choose different paint film precisions according to the product structure characteristics and the prominence of the location, and the lowest shall not be lower than the blood grade precision.
3.5.5 The selection of paint film precision level shall take into account the market adaptability, economy and reliability of operation. 3.6 Selection of paint varieties
3.6.1 The paint varieties should meet the requirements of normal working conditions and working environment, and should be selected according to Appendix A (Appendix of the standard). 3.6.2 For products that are to be shipped abroad and need to be transported long distances at sea, the paint varieties and painting processes should meet the requirements of wet tropical and salt spray resistance.
3.6.3 The selection of paint varieties should meet the requirements of paint film accuracy, strength, elasticity, hardness, adhesion and weather resistance. 3.6.4 Under the premise of ensuring quality, paint varieties with low environmental pollution and economical application should be given priority. 3.7 Requirements for coatings
3.7.1 Primer, putty, second primer, topcoat, cavity paint, thinner, etc. must be used in combination, and generally should comply with the provisions of Appendix B (Appendix of the standard).
3.7.2 The quality of the coating must comply with the provisions of the relevant standards. 3.8 Painting requirements
The painting site should comply with the provisions of Article 3.2.
Painting tools should be clean.
The primer should be applied evenly without sagging, missing paint, wrinkling, etc. This process should be carried out before assembly. The surface of the workpiece should be painted after the primer is dry. Generally, this process should be carried out before assembly. 3.8.4
The topcoat should be uniform, dense and bright to meet the requirements of the specified paint film accuracy, generally (2 to 3) layers, and the color of each layer of paint should be slightly different, 3.8.5
For identification, the last layer of paint should be applied after the test run is qualified. 3.8.6 The intersection of two colors of topcoat should have a clear boundary, and the color transition should be smooth and natural, and integrated. The painting work shall be carried out strictly in accordance with the painting process and the provisions of this standard. When the first coat of topcoat is dry to the point where there is no trace of finger pressure, apply the second coat. For the topcoat with a film accuracy of level II, it can be sanded with water sandpaper after drying, thinly scraped with putty, sanded with water sandpaper after drying, and then applied with a coat of topcoat after drying until the film accuracy requirements are met. 3.8.8 If the paint layer is damaged during installation, commissioning or other processes, it should be remedied in time. According to the damage and the painting process, the same paint should be used for touch-up. 3.8.9 The main quality indicators of the paint layer should meet the requirements of Table 3. 527
Coat film color
Coat film appearance
Coat film gloss
Coat film attachment
Coat film thickness
Mechanical strength
Mold resistance
Oil resistance
Cutting fluid resistance
Test method
JB/T4328.9--1999
Table 3 Main quality indicators of paint layer
Quality requirements
Same as standard color sample|| tt||Should be smooth, finished, with clear boundaries, no sagging, wrinkles, cracks, wrinkles, smears, or peeling. The surface is polyvinyl chloride paint
Alkyd paint
Nitro paint (dark color)
Nitro paint (light color)
Perchloroethylene paint should reach level 3
Nitro paint and alkyd paint should reach level 2
≥80%
≥80%
Perchloroethylene paint and alkyd paint should reach (60~90)μmNitro paint≥90 μm
Impact strength: perfluoroethylene paint and alkyd paint should reach 490N·cm; nitro paint should reach 270N·cm
Permeability: perchloroethylene paint and alkyd paint 1mm; nitro paint ≤3mmDegree: perchloroethylene paint ≥0.4: alkyd paint ≥0.25; nitro paint ≥0.5After one year of use, the paint film is smooth, glossless, and obvious discoloration is allowed. Immerse in 20# engine oil and check once every 72h at room temperature. After 21 consecutive days, there is no bubbling, shedding, cracking or wrinkling on the surface. Immerse in cutting fluid (formula: sodium nitrite 0.3%, sodium carbonate 0.5%, water balance) and check once every 72h at room temperature. After 21 consecutive days, there is no bubbling, shedding, cracking or wrinkling on the surface. Slight gloss loss and discoloration are allowed. The preparation of samples for paint film quality test shall comply with the provisions of GB/T1727. Quality properties
Appearance quality
Internal quality
Inspection of phosphating treatment before painting
After the workpiece and test sample are phosphated, apply (10~25)μm thick enamel and dry it. After the salt spray test for 150 hours continuously, the corrosion of the base metal on any side of the scratch shall not exceed 3mm. The procedure of the salt spray test shall be carried out in accordance with the provisions of GB/T1771. The test method of the glossiness of the paint film shall be carried out in accordance with the provisions of GB/T1743. 4.3
The test method of the adhesion of the paint film shall be carried out in accordance with the provisions of GB/T1720. The test method of the thickness of the paint film shall be carried out in accordance with the provisions of GB/T1764. The test method of the mechanical strength of the paint film shall be carried out in accordance with the following requirements: a) The impact strength shall be tested in accordance with the provisions of GB/T1732; b) The elasticity shall be tested in accordance with the provisions of GB/T1731; c) The hardness shall be tested in accordance with the provisions of GB/T1730. Inspection rules
The final paint layer of each product can only be put into storage after being inspected and qualified by the quality inspection department. The surface quality of the paint film should be inspected one by one, and the accuracy level of the paint film should comply with the provisions of Table 2. 5.2
The inspection of the coated surface before painting should comply with the provisions of Table 4. 5.3
Oxide scale
Welding slag and tumor
External surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
JB/T4328.9—1999
Inspection standard
Inner surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
The inspection of the primer layer should comply with the provisions of Table 5. Table 5
Adhesion
Film thickness
Inspection standard
Outer surface
Inner surface
No peeling
(30~40)μm
No
No
Yes but not serious
No
No
Inspection method
Inspection method
Apply transparent tape, the length of which shall not be less than|| tt||50mm, there should be no residue after tearing off
Electromagnetic thickness gauge
Inspection rules
Inspection piece by piece
Inspection piece by piece
Inspection rules
Random inspection, 3% of each batch but not less than 2 units
Random inspection, one unit per batch
Remote inspection
Inspection piece by piece
Inspection piece by piece
Inspection piece by piece
See Table A1 for the types and properties of paint.
Nitro lacquer
Alkyd paint
Phenolic paint
Perchloroethylene paint
Amino baking varnish
Polyurethane
Aluminum powder alkyd
Heat-resistant paint
Various colors of silicone
Heat-resistant paint
Various colors of silicone
Heat-resistant baking varnish
Outdoor durability
JB/T4328.9—1999
Appendix A
(Appendix to the standard)|| tt||Types and properties of paint
Chemical resistance
【Incoming water】
Note: The order of performance is: excellent, good, medium, poor, very poor, 530
Hydrocarbon solvents
Ketone solvents
High use
Physical properties
Possible paint
Film accuracy, etc.
mesh, m
I, IV
I, IN
The matching use of coatings is shown in Table B1.
Various colors of nitrocellulose primer
iron red alcohol
acid primer
iron red, zinc yellow
perfluorinated vinyl primer
JB/T4328.9—1999
Appendix B
(Appendix to the standard)
Matching use of coatings
Various colors of nitrocellulose primer
Various colors of alcohol
acid putty
Various colors of perchlorinated vinyl putty
Second coat primer
Various colors of nitrocellulose primer
C06-10
Alkyd two-layer putty
Perchlorethylene
Various colors of nitro
based external
C04-42
Various colors of alcohol
acid varnish
Various colors of
external varnish
interior paint
Various colors of nitro
based external
Alkyd oil-resistant
Various colors of
vinyl chloride
external varnish
thinner
nitro paint
thinner
Alkyd lacquer
Perchlorethylene
thinner7
Two coats, for the topcoat with grade II paint film accuracy, it can be sanded with water sandpaper after drying, thinly scraped with putty, sanded with water sandpaper after drying, and then coated with topcoat again after drying until the paint film accuracy requirements are met. 3.8.8 If the paint layer is damaged during installation, commissioning or other processes, it should be remedied in time. According to the damage and the painting process, the same paint should be used for touch-up. 3.8.9 The main quality indicators of the paint layer should meet the requirements of Table 3. 527
Coat film color
Coat film appearance
Coat film gloss
Coat film attachment
Coat film thickness
Mechanical strength
Mold resistance
Oil resistance
Cutting fluid resistance
Test method
JB/T4328.9--1999
Table 3 Main quality indicators of paint layer
Quality requirements
Same as standard color sample|| tt||Should be smooth, finished, with clear boundaries, no sagging, wrinkles, cracks, wrinkles, smears, or peeling. The surface is polyvinyl chloride paint
Alkyd paint
Nitro paint (dark color)
Nitro paint (light color)
Perchloroethylene paint should reach level 3
Nitro paint and alkyd paint should reach level 2
≥80%
≥80%
Perchloroethylene paint and alkyd paint should reach (60~90)μmNitro paint≥90 μm
Impact strength: perfluoroethylene paint and alkyd paint should reach 490N·cm; nitro paint should reach 270N·cm
Permeability: perchloroethylene paint and alkyd paint 1mm; nitro paint ≤3mmDegree: perchloroethylene paint ≥0.4: alkyd paint ≥0.25; nitro paint ≥0.5After one year of use, the paint film is flat, glossless, and obvious discoloration is allowed. Immerse in 20# engine oil and check once every 72h at room temperature. After 21 consecutive days, there is no bubbling, shedding, cracking or wrinkling on the surface. Immerse in cutting fluid (formula: sodium nitrite 0.3%, sodium carbonate 0.5%, water balance) and check once every 72h at room temperature. After 21 consecutive days, there is no bubbling, shedding, cracking or wrinkling on the surface. Slight gloss loss and discoloration are allowed. The preparation of samples for paint film quality test shall comply with the provisions of GB/T1727. Quality properties
Appearance quality
Internal quality
Inspection of phosphating treatment before painting
After the workpiece and test sample are phosphated, apply (10~25)μm thick enamel and dry it. After the salt spray test for 150 hours continuously, the corrosion of the base metal on any side of the scratch shall not exceed 3mm. The procedure of the salt spray test shall be carried out in accordance with the provisions of GB/T1771. The test method of the glossiness of the paint film shall be carried out in accordance with the provisions of GB/T1743. 4.3
The test method of the adhesion of the paint film shall be carried out in accordance with the provisions of GB/T1720. The test method of the thickness of the paint film shall be carried out in accordance with the provisions of GB/T1764. The test method of the mechanical strength of the paint film shall be carried out in accordance with the following requirements: a) The impact strength shall be tested in accordance with the provisions of GB/T1732; b) The elasticity shall be tested in accordance with the provisions of GB/T1731; c) The hardness shall be tested in accordance with the provisions of GB/T1730. Inspection rules
The final paint layer of each product can only be put into storage after being inspected and qualified by the quality inspection department. The surface quality of the paint film should be inspected one by one, and the accuracy level of the paint film should comply with the provisions of Table 2. 5.2
The inspection of the coated surface before painting should comply with the provisions of Table 4. 5.3
Oxide scale
Welding slag and tumor
External surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
JB/T4328.9—1999
Inspection standard
Inner surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
The inspection of the primer layer should comply with the provisions of Table 5. Table 5
Adhesion
Film thickness
Inspection standard
Outer surface
Inner surface
No peeling
(30~40)μm
No
No
Yes but not serious
No
No
Inspection method
Inspection method
Apply transparent tape, the length of which shall not be less than|| tt||50mm, there should be no residue after tearing offbZxz.net
Electromagnetic thickness gauge
Inspection rules
Inspection piece by piece
Inspection piece by piece
Inspection rules
Random inspection, 3% of each batch but not less than 2 units
Random inspection, one unit per batch
Remote inspection
Inspection piece by piece
Inspection piece by piece
Inspection piece by piece
See Table A1 for the types and properties of paint.
Nitro lacquer
Alkyd paint
Phenolic paint
Perchloroethylene paint
Amino baking varnish
Polyurethane spicy
Aluminum powder alkyd
Heat-resistant paint
Various colors of silicone
Heat-resistant paint
Various colors of silicone
Heat-resistant baking varnish
Outdoor durability
JB/T4328.9—1999
Appendix A
(Appendix to the standard)|| tt||Types and properties of paint
Chemical resistance
[Incoming water]
Note: The order of performance is: excellent, good, medium, poor, very poor, 530
Hydrocarbon solvents
Ketone solvents
High use
Physical properties
Possible paint
Film accuracy, etc.
mesh, m
I, IV
I, IN
The matching use of coatings is shown in Table B1.
Various colors of nitrocellulose primer
iron red alcohol
acid primer
iron red, zinc yellow
perfluorinated vinyl primer
JB/T4328.9—1999
Appendix B
(Appendix to the standard)
Matching use of coatings
Various colors of nitrocellulose primer
Various colors of alcohol
acid putty
Various colors of perchlorinated vinyl putty
Second coat primer
Various colors of nitrocellulose primer
C06-10
Alkyd two-layer putty
Perchlorethylene
Various colors of nitro
based external
C04-42
Various colors of alcohol
acid varnish
Various colors of
external varnish
interior paint
Various colors of nitro
based external
Alkyd oil-resistant
Various colors of
vinyl chloride
external varnish
thinner
nitro paint
thinner
Alkyd lacquer
Perchlorethylene
thinner7
Two coats, for the topcoat with grade II paint film accuracy, it can be sanded with water sandpaper after drying, thinly scraped with putty, sanded with water sandpaper after drying, and then painted with one coat of topcoat after drying until the paint film accuracy requirements are met. 3.8.8 If the paint layer is damaged during installation, commissioning or other processes, it should be repaired in time. According to the damage and the painting process, the same paint should be used for touch-up. 3.8.9 The main quality indicators of the paint layer should meet the requirements of Table 3. 527
Coat film color
Coat film appearance
Coat film gloss
Coat film attachment
Coat film thickness
Mechanical strength
Mold resistance
Oil resistance
Cutting fluid resistance
Test method
JB/T4328.9--1999
Table 3 Main quality indicators of paint layer
Quality requirements
Same as standard color sample|| tt||Should be smooth, finished, with clear boundaries, no sagging, wrinkles, cracks, wrinkles, smears, or peeling. The surface is polyvinyl chloride paint
Alkyd paint
Nitro paint (dark color)
Nitro paint (light color)
Perchloroethylene paint should reach level 3
Nitro paint and alkyd paint should reach level 2
≥80%
≥80%
Perchloroethylene paint and alkyd paint should reach (60~90)μmNitro paint≥90 μm
Impact strength: perfluoroethylene paint and alkyd paint should reach 490N·cm; nitro paint should reach 270N·cm
Permeability: perchloroethylene paint and alkyd paint 1mm; nitro paint ≤3mmDegree: perchloroethylene paint ≥0.4: alkyd paint ≥0.25; nitro paint ≥0.5After one year of use, the paint film is smooth, glossless, and obvious discoloration is allowed. Immerse in 20# engine oil and check once every 72h at room temperature. After 21 consecutive days, there is no bubbling, shedding, cracking or wrinkling on the surface. Immerse in cutting fluid (formula: sodium nitrite 0.3%, sodium carbonate 0.5%, water balance) and check once every 72h at room temperature. After 21 consecutive days, there is no bubbling, shedding, cracking or wrinkling on the surface. Slight gloss loss and discoloration are allowed. The preparation of samples for paint film quality test shall comply with the provisions of GB/T1727. Quality properties
Appearance quality
Internal quality
Inspection of phosphating treatment before painting
After the workpiece and test sample are phosphated, apply (10~25)μm thick enamel and dry it. After the salt spray test for 150 hours continuously, the corrosion of the base metal on any side of the scratch shall not exceed 3mm. The procedure of the salt spray test shall be carried out in accordance with the provisions of GB/T1771. The test method of the glossiness of the paint film shall be carried out in accordance with the provisions of GB/T1743. 4.3
The test method of the adhesion of the paint film shall be carried out in accordance with the provisions of GB/T1720. The test method of the thickness of the paint film shall be carried out in accordance with the provisions of GB/T1764. The test method of the mechanical strength of the paint film shall be carried out in accordance with the following requirements: a) The impact strength shall be tested in accordance with the provisions of GB/T1732; b) The elasticity shall be tested in accordance with the provisions of GB/T1731; c) The hardness shall be tested in accordance with the provisions of GB/T1730. Inspection rules
The final paint layer of each product can only be put into storage after being inspected and qualified by the quality inspection department. The surface quality of the paint film should be inspected one by one, and the accuracy level of the paint film should comply with the provisions of Table 2. 5.2
The inspection of the coated surface before painting should comply with the provisions of Table 4. 5.3
Oxide scale
Welding slag and tumor
External surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
JB/T4328.9—1999
Inspection standard
Inner surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
The inspection of the primer layer should comply with the provisions of Table 5. Table 5
Adhesion
Film thickness
Inspection standard
Outer surface
Inner surface
No peeling
(30~40)μm
No
No
Yes but not serious
No
No
Inspection method
Inspection method
Apply transparent tape, the length of which shall not be less than|| tt||50mm, there should be no residue after tearing off
Electromagnetic thickness gauge
Inspection rules
Inspection piece by piece
Inspection piece by piece
Inspection rules
Random inspection, 3% of each batch but not less than 2 units
Random inspection, one unit per batch
Remote inspection
Inspection piece by piece
Inspection piece by piece
Inspection piece by piece
See Table A1 for the types and properties of paint.
Nitro lacquer
Alkyd paint
Phenolic paint
Perchloroethylene paint
Amino baking varnish
Polyurethane
Aluminum powder alkyd
Heat-resistant paint
Various colors of silicone
Heat-resistant paint
Various colors of silicone
Heat-resistant baking varnish
Outdoor durability
JB/T4328.9—1999
Appendix A
(Appendix to the standard)|| tt||Types and properties of paint
Chemical resistance
【Incoming water】
Note: The order of performance is: excellent, good, medium, poor, very poor, 530
Hydrocarbon solvents
Ketone solvents
High use
Physical properties
Possible paint
Film accuracy, etc.
mesh, m
I, IV
I, IN
The matching use of coatings is shown in Table B1.
Various colors of nitrocellulose primer
iron red alcohol
acid primer
iron red, zinc yellow
perfluorinated vinyl primer
JB/T4328.9—1999
Appendix B
(Appendix to the standard)
Matching use of coatings
Various colors of nitrocellulose primer
Various colors of alcohol
acid putty
Various colors of perchlorinated vinyl putty
Second coat primer
Various colors of nitrocellulose primer
C06-10
Alkyd two-layer putty
Perchlorethylene
Various colors of nitro
based external
C04-42
Various colors of alcohol
acid varnish
Various colors of
external varnish
interior paint
Various colors of nitro
based external
Alkyd oil-resistant
Various colors of
vinyl chloride
external varnish
thinner
nitro paint
thinner
Alkyd lacquer
Perchlorethylene
thinner5 After one year of use, the paint film is flat, glossless, and obvious color change is allowed. Immerse in 20# engine oil, check once every 72 hours at room temperature, and after 21 consecutive days, there is no pooling, shedding, cracking, or wrinkles on the surface. Immerse in cutting fluid (formula: sodium nitrite 0.3%, sodium carbonate 0.5%, water balance) Check once every 72 hours at room temperature, and after 21 consecutive days, there is no blistering, shedding, cracking, or wrinkles on the surface. Slight gloss loss and color change are allowed. The preparation of the sample for the paint film quality test shall comply with the provisions of GB/T1727. Quality properties
Appearance quality
Internal quality
Inspection of phosphating treatment before painting
After the workpiece and the test sample are phosphated, apply (10~25)μm thick enamel and dry it. After the salt spray test for 150 consecutive hours, the corrosion of the base metal on any side of the scratch shall not exceed 3mm. The procedure of the salt spray test shall be carried out in accordance with the provisions of GB/T1771. The test method for the glossiness of the paint film shall be in accordance with the provisions of GB/T1743. 4.3
The test method for the adhesion of the paint film shall be in accordance with the provisions of GB/T1720. The test method for the thickness of the paint film shall be in accordance with the provisions of GB/T1764. The test method for the mechanical strength of the paint film shall be in accordance with the following requirements: a) The impact strength shall be tested in accordance with the provisions of GB/T1732; b) The elasticity shall be tested in accordance with the provisions of GB/T1731; c) The hardness shall be tested in accordance with the provisions of GB/T1730. Inspection rules
The final paint layer of each product can only be put into storage after being inspected and qualified by the quality inspection department. The surface quality of the paint film shall be inspected one by one, and the accuracy grade of the paint film shall comply with the provisions of Table 2. 5.2
The inspection of the coated surface before painting shall comply with the provisions of Table 4. 5.3
Oxide scale
Welding slag and nodules
External surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
JB/T4328.9—1999
Inspection standard
Inner surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
The inspection of the primer layer shall comply with the provisions of Table 5. Table 5
Adhesion
Film thickness
Inspection standard
Outer surface
Inner surface
No peeling
(30~40)μm
No
No
Yes but not serious
No
No
Inspection method
Inspection method
Apply transparent tape, the length of which shall not be less than|| tt||50mm, there should be no residue after tearing off
Electromagnetic thickness gauge
Inspection rules
Inspection piece by piece
Inspection piece by piece
Inspection rules
Random inspection, 3% of each batch but not less than 2 units
Random inspection, one unit per batch
Remote inspection
Inspection piece by piece
Inspection piece by piece
Inspection piece by piece
See Table A1 for the types and properties of paint.
Nitro lacquer
Alkyd paint
Phenolic paint
Perchloroethylene paint
Amino baking varnish
Polyurethane
Aluminum powder alkyd
Heat-resistant paint
Various colors of silicone
Heat-resistant paint
Various colors of silicone
Heat-resistant baking varnish
Outdoor durability
JB/T4328.9—1999
Appendix A
(Appendix to the standard)|| tt||Types and properties of paint
Chemical resistance
【Incoming water】
Note: The order of performance is: excellent, good, medium, poor, very poor, 530
Hydrocarbon solvents
Ketone solvents
High use
Physical properties
Possible paint
Film accuracy, etc.
mesh, m
I, IV
I, IN
The matching use of coatings is shown in Table B1.
Various colors of nitrocellulose primer
iron red alcohol
acid primer
iron red, zinc yellow
perfluorinated vinyl primer
JB/T4328.9—1999
Appendix B
(Appendix to the standard)
Matching use of coatings
Various colors of nitrocellulose primer
Various colors of alcohol
acid putty
Various colors of perchlorinated vinyl putty
Second coat primer
Various colors of nitrocellulose primer
C06-10
Alkyd two-layer putty
Perchlorethylene
Various colors of nitro
based external
C04-42
Various colors of alcohol
acid varnish
Various colors of
external varnish
interior paint
Various colors of nitro
based external
Alkyd oil-resistant
Various colors of
vinyl chloride
external varnish
thinner
nitro paint
thinner
Alkyd lacquer
Perchlorethylene
thinner5 After one year of use, the paint film is flat, glossless, and obvious color change is allowed. Immerse in 20# engine oil, check once every 72 hours at room temperature, and after 21 consecutive days, there is no pooling, shedding, cracking, or wrinkles on the surface. Immerse in cutting fluid (formula: sodium nitrite 0.3%, sodium carbonate 0.5%, water balance) Check once every 72 hours at room temperature, and after 21 consecutive days, there is no blistering, shedding, cracking, or wrinkles on the surface. Slight gloss loss and color change are allowed. The preparation of the sample for the paint film quality test shall comply with the provisions of GB/T1727. Quality properties
Appearance quality
Internal quality
Inspection of phosphating treatment before painting
After the workpiece and the test sample are phosphated, apply (10~25)μm thick enamel and dry it. After the salt spray test for 150 consecutive hours, the corrosion of the base metal on any side of the scratch shall not exceed 3mm. The procedure of the salt spray test shall be carried out in accordance with the provisions of GB/T1771. The test method for the glossiness of the paint film shall be in accordance with the provisions of GB/T1743. 4.3
The test method for the adhesion of the paint film shall be in accordance with the provisions of GB/T1720. The test method for the thickness of the paint film shall be in accordance with the provisions of GB/T1764. The test method for the mechanical strength of the paint film shall be in accordance with the following requirements: a) The impact strength shall be tested in accordance with the provisions of GB/T1732; b) The elasticity shall be tested in accordance with the provisions of GB/T1731; c) The hardness shall be tested in accordance with the provisions of GB/T1730. Inspection rules
The final paint layer of each product can only be put into storage after being inspected and qualified by the quality inspection department. The surface quality of the paint film shall be inspected one by one, and the accuracy grade of the paint film shall comply with the provisions of Table 2. 5.2
The inspection of the coated surface before painting shall comply with the provisions of Table 4. 5.3
Oxide scale
Welding slag and nodules
External surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
JB/T4328.9—1999
Inspection standard
Inner surface
Not allowed to exist
Not allowed to exist
Not allowed to exist
The inspection of the primer layer shall comply with the provisions of Table 5. Table 5
Adhesion
Film thickness
Inspection standard
Outer surface
Inner surface
No peeling
(30~40)μm
No
No
Yes but not serious
No
No
Inspection method
Inspection method
Apply transparent tape, the length of which shall not be less than|| tt||50mm, there should be no residue after tearing off
Electromagnetic thickness gauge
Inspection rules
Inspection piece by piece
Inspection piece by piece
Inspection rules
Random inspection, 3% of each batch but not less than 2 units
Random inspection, one unit per batch
Remote inspection
Inspection piece by piece
Inspection piece by piece
Inspection piece by piece
See Table A1 for the types and properties of paint.
Nitro lacquer
Alkyd paint
Phenolic paint
Perchloroethylene paint
Amino baking varnish
Polyurethane
Aluminum powder alkyd
Heat-resistant paint
Various colors of silicone
Heat-resistant paint
Various colors of silicone
Heat-resistant baking varnish
Outdoor durability
JB/T4328.9—1999
Appendix A
(Appendix to the standard)|| tt||Types and properties of paint
Chemical resistance
【Incoming water】
Note: The order of performance is: excellent, good, medium, poor, very poor, 530
Hydrocarbon solvents
Ketone solvents
High use
Physical properties
Possible paint
Film accuracy, etc.
mesh, m
I, IV
I, IN
The matching use of coatings is shown in Table B1.
Various colors of nitrocellulose primer
iron red alcohol
acid primer
iron red, zinc yellow
perfluorinated vinyl primer
JB/T4328.9—1999
Appendix B
(Appendix to the standard)
Matching use of coatings
Various colors of nitrocellulose primer
Various colors of alcohol
acid putty
Various colors of perchlorinated vinyl putty
Second coat primer
Various colors of nitrocellulose primer
C06-10
Alkyd two-layer putty
Perchlorethylene
Various colors of nitro
based external
C04-42
Various colors of alcohol
acid varnish
Various colors of
external varnish
interior paint
Various colors of nitro
based external
Alkyd oil-resistant
Various colors of
vinyl chloride
external varnish
thinner
nitro paint
thinner
Alkyd lacquer
Perchlorethylene
thinner9—1999
Appendix A
(Appendix of the standard)
Types and properties of paints
Chemical resistance
[Incoming water]
Note: The order of performance is: excellent, good, medium, poor, very poor, 530
Hydrocarbon solvents
Ketone solvents
High use
Physical properties
Possible paint
Film accuracy, etc.
mesh, m
I, IV
I, IN
The matching use of coatings is shown in Table B1.
Various colors of nitrocellulose primer
iron red alcohol
acid primer
iron red, zinc yellow
perfluorinated vinyl primer
JB/T4328.9—1999
Appendix B
(Appendix to the standard)
Matching use of coatings
Various colors of nitrocellulose primer
Various colors of alcohol
acid putty
Various colors of perchlorinated vinyl putty
Second coat primer
Various colors of nitrocellulose primer
C06-10
Alkyd two-layer putty
Perchloroethylene
Various nitro
based external
C04-42
Various alcohol
Acid varnish
Various perchloroethylene
External varnish
Interior paint
Various nitro
based external
Alkyd oil-resistant
Various perchloroethylene
External varnish
Thinner
Nitro paint
Thinner
Alkyd lacquer
Perchloroethylene
Thinner9—1999
Appendix A
(Appendix of the standard)
Types and properties of paints
Chemical resistance
[Incoming water]
Note: The order of performance is: excellent, good, medium, poor, very poor, 530
Hydrocarbon solvents
Ketone solvents
High use
Physical properties
Possible paint
Film accuracy, etc.
mesh, m
I, IV
I, IN
The matching use of coatings is shown in Table B1.
Various colors of nitrocellulose primer
iron red alcohol
acid primer
iron red, zinc yellow
perfluorinated vinyl primer
JB/T4328.9—1999
Appendix B
(Appendix to the standard)
Matching use of coatings
Various colors of nitrocellulose primer
Various colors of alcohol
acid putty
Various colors of perchlorinated vinyl putty
Second coat primer
Various colors of nitrocellulose primer
C06-10
Alkyd two-layer putty
Perchloroethylene
Various nitro
based external
C04-42
Various alcohol
Acid varnish
Various perchloroethylene
External varnish
Interior paint
Various nitro
based external
Alkyd oil-resistant
Various perchloroethylene
External varnish
Thinner
Nitro paint
Thinner
Alkyd lacquer
Perchloroethylene
Thinner
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