Some standard content:
J71 | | tt | | JB |
The Ministry of Mechanical and Electronics Industry of the People's Republic of China implemented on 1993-01-01
Published
Mechanical Industry Standards of the People's Republic of China
Pump Product Painting Technical Conditions||tt| |1Subject content and scope of application
This standard specifies the coating technical requirements and coating inspection of pump products. This standard applies to spraying, painting and uncoating on the surface of metal parts and components of pump products. 2 Reference standards
GB1720
GB
GB
GB||tt ||GB
1723
1728
1743
1749
GB
1764
3 technical requirements||tt ||Coating range
3.1
Coating film adhesion measurement method
Coating viscosity measurement method
Paint film and putty film drying time measurement method
Paint film gloss determination method
Thick paint and sub-consistency determination method
Paint film thickness determination method
JB/T 429792
Replaces JB 4297-86||tt| |3.1.1 All unprocessed surfaces and processed non-matching surfaces of pump parts and components other than those specified in 3.1.2 shall be painted. 3.1.2
a.
b.
c.
d
One of the following shall not be painted:
Non-steel , iron metal parts and stainless steel parts;
chromium, nickel, silver, tin and other parts;: sliding parts, mating parts, sealing surfaces, contact surfaces, threaded surfaces, etc., signs and steering plates.
Unless there are special requirements, auxiliary accessories such as prime movers and valves will not be repainted. 3.1.3
3.2 Surface pretreatment
Oxide scale, rust, oil stains and other attachments on the surface of the base metal should be removed before painting. Surface pretreatment is divided into three levels: A, B, and C (see Table 1).
Table 1
etc.
A
B
c
level
3.3 Painting environment||tt| |Pretreatment degree
Completely remove oxide scale, graphite and all other attachments. Almost completely (95%) remove oxide scale, graphite and all other attachments. Remove all adhesive oxide scale and stone weight. Attachments 3.3.1 Painting should be carried out in a clean and dry place. When working in the open air, the paint film cannot be dried before it is dusty, raining, snowing, foggy, or it rains, and the temperature of the base metal can be increased by sunlight. Painting is not allowed when the temperature exceeds 50℃. Approved by the Ministry of Mechanical and Electronic Industry on 1992-07-20 and implemented on 1993-01-01
1
JB/T 429792
3.3.2 The ambient temperature should not be lower than 5℃, and the relative humidity It should not be greater than 70%. If the relative humidity is greater than 70%, an appropriate amount of moisture-proof agent should be added to the coating to prevent the coating film from turning white.
3.3.3 Strict fire prevention, explosion prevention and virus prevention measures should be taken to ensure safety. 3.4 Painting
3.4.1 Apply primer within 2 hours after passing the surface pretreatment inspection, with a paint film thickness of 0.02~0.04mm. Primer viscosity, drying time, adhesion, etc. should comply with the provisions of Table 2, Table 2
Performance
Construction viscosity
Dry explosion time
Adhesion||tt ||Gloss
Eggness
s\
h
%
em
Note: 1) Refers to coating-4 Viscometer measurement, bottom
20~80
24
3
2) is when the temperature is 25±1℃ and the relative difference is 60±5% Time for hard work. Sub
18
8~11
Miandong
15~30
≤24
3~4
>70 | If you need to apply multiple layers of putty before you can fill it, you must wait until the previous layer of putty is completely dry and polished before applying the next layer. The surface of the last layer of cane should be flat, smooth, hard, matte, and powder-free. The putty consistency and drying time should comply with the requirements in Table 2. 3.4.3 Two coats of topcoat should be applied, and the last coat of topcoat should be applied after the product performance test passes. The film thickness of each topcoat is 0.015~0.04mm.
The viscosity, drying time, gloss, and adhesion of the topcoat should comply with the requirements in Table 2. 3.4.4 During the coating process, the pretreated base metal surface or the undried coating surface should be free from soil, water droplets, oil, dust and other dirt.
Parts where the paint film is prone to thinning, such as corners, ends, welds, etc., should be partially painted to obtain a uniform film thickness, 3.4.5
3.4.6
3.4.7
3.4.8
3. 4.9
Surfaces that are difficult to paint after assembly should be painted before assembly: the coating should be even and there should be no brush marks, Defects such as shrinkage, blistering, peeling, wrinkling, sagging, pinholes, floating color and bleeding. The boundary line between the two colors of the paint film should be clear.
The paint film at the junction of parts and components should be smooth and should not be painted into one piece. 3.4.16
3.4.11
3.4.12
3.4.13
Xu Zhuang
Classification
Back Training|| tt||Decoration
2
The mark with the word "笠" is painted with red topcoat, and the word "Zun" should be eye-catching and clear. Non-steel, ferrous metal, and stainless steel parts attached to the pump body can also be painted with the same color as the pump body. After painting, care should be taken to protect the paint film and keep the surface clean to prevent oil stains and scratches. See Table 3 for unprocessed outer surface coating.
Table 3
Painted parts or painted parts
Pump casing, bearing
part, transmission part and bottom
seat\etc.|| tt||pretreatment
etc
grade
B
primer
paint
C06-1 iron red alkyd primer| |tt||道
Q06-4 nitrocellulose primer--道
Putty
C07-5
Alkyd
Putty|| tt | | Q07-5 | | tt | tt||Before this, apply two coats of C05-10 alkyd
and one coat of primer
two coats of Q04-2 nitro exterior enamel
Scope of application
110c | | tt | | Acid | | tt | Assembly or painting partswww.bzxz.net
Long shaft deep well pumps, submersible
water pumps, mixed flow pumps and shafts
flow pumps and other underwater and water
upper parts||tt ||Polymer part, bearing
part, transmission part and bottom
seat "etc.
pump cover
pretreatment
grade||tt| |B
Bottom
JB/T 4297-92
Continued Table 3
Dial
H06-11 Iron Red Epoxy Alcohol Wei||tt ||Primer one coat
G06-3 peak yellow perchlorethylene primer
Quick one coat
G06-4 iron red perchlorethylene primer
this one coat||tt ||S06-1 iron red polyurethane primer
one line
WO6-1 reddish silicone attached
one line of thermal paint
C06-1 iron red Alkyd primer-
comply with
Note: 1) The base pretreatment level is all grade C. 2) It can be selected according to the medium temperature,
3.4.14 does not process the inner surface. See Table 4 for coating.Service
子
H07-7
epoxy alcohol
acid putty
G07-3
overdaiyi||tt| |olefin putty
W07-1
organic silicone
putty
国
H04-2 cyclic phosphorus evaporated paint two courses||tt| |Suitable for use
a0c
clear water
lakes and seas
G04-8 perchlorethylene blue paint two-coat, water and seawater environment||tt| |G52-1 perchlorethylene anti-separation paint one channel
, G52-2 perfluoroethylene 7 anti-separation paint
one channel
S04-1 polyurethane silicone paint two channels|| tt | |tt||1 = 20
80℃
Clean water and
W61-25 saw powder silicone heat-resistant, --45
毼二道 (resistant to 500C) 1
C04-2 black alkyd paint two lines|| tt||~450C
petroleum, chemical industry
and its products
painted parts or assembly parts
series castings and water pipes, diagonal flow pumps The flow parts of the guide vane, suction bell tube, intermediate nozzle and other flow parts of the pump. The flow part of the stop steel parts of the pump
The over-sparing part of the corrosion pump
The over-sparing part of the heat-resistant pump
Oil storage room of the support part
Note: 1) Export product Xu C04-49 alkyd one. 3.4. 15
See Table 5 for the coating of the non-matching surface.
Parts or removal parts
Cast iron impeller, balance plate, well ticket bearing body, etc. Pot impeller, balance plate
Parallel transmission shaft
Coupling
Connection: 7) Export product C04-49 alcohol stock magnetic reading line, 3.4.16
JB/T 429792
Table 4
Pretreatment
Grade||tt| |B | ||C06-1 Iron Red Alkyd Primer
(excluding the primer required for storage parts entering the factory)
Input anti-rust oil
No
C06- 1 Iron Red Alkyd Primer
Table 5
Primer
Strike
C06-1 Fast Red Alkyd Primer
(not included The dyed parts are painted in the factory)
sensitive anti-attractant oil
H06-11 red epoxy alkyd base
rust one line
Table 6
Static parts or painting parts
Various special tools
Heating camp
lubricating oil into the oil bag
lubricating oil outlet bag
cooling water pipe | |tt | tt | -2 One line of green alkyd repellent paint
C04-2 one line of static contact enamel
3.4.17, the diluents used in various types of composite materials used in this standard are shown in Table 74
| |tt | ||Not removed”
Not pro-
Coupling without anti-rust treatment
Large outer circle and end face Xu C01-1 alcohol
Acid clearing together, Other parts polyester
C04-49 red magnetic line
Zhen
3.4.18
agent
No. 200 drop agent and second grade || tt||No. 200 solvent oil and dimethyl
(8+2>Mixed solvent
Three-Year Sheep
|X-1 nitro re-release agent
Table 7
C06-1 Iron Red Alkyd Primer
G07-5 Alkyd Brain
Applicable Range
C04-49 Various Alkyds Silk paint
H06-1I iron red epoxy alkyd primer
H07-7 epoxy alkyd peptide
W06-1 red silicone heat-resistant primer|| tt||WO2-1 silicone putty
W61-25 aluminum powder silicone heat-resistant paint
W61-26 silicone heat-resistant paint
W61-32 aluminum powder silicone resistant Thermal paint
C04-2 various colors of alkyd paint
H04-2 various colors of epoxy nitro magnetic dye
Q04-2 nitro external silicone paint
Q06- 4 nitrocellulose primer
Q07-5 various colored pin-based putty
G04-8 gas-fired vinyl enamel paint
G06-3 zinc yellow perchlorethylene base concentrate
G06 -4 iron red percyanoethylene primer
G52-1 perhydroethylene anti-separation paint
G52-2 perchlorethylene anti-corrosion paint
G07-3 perchlorethylene paint| | tt | The performance of the rate, coating and topcoat should not be lower than those specified in Table 2, and should be complementary to each other.
The topcoat color should be specified in the order form or data sheet, otherwise the manufacturer can choose it by himself. 3. 4.19
3.4.20
When using other thinners than those specified in this standard, the selected thinner must be matched with the paint used. 4 Painting inspection
After painting, it should be inspected by the relevant departments. If the paint film is defective, it should be repaired immediately. The inspection methods and internal customers are as follows: 4:1
a.
6
The painting department shall inspect the surface layer in accordance with the provisions of 3.4.6~3.4.10: The inspection department shall The inspection items specified in Table 8 shall be inspected. 5
4.2
6
Inspection items
Adhesion
Construction viscosity
Drying time
Light bath
Degree|| tt||Paint film thickness
JB/T 4297-92
Table 8
After the coating inspection, the coating inspection record form should be filled in. See Appendix A for the format. Inspection method
GB1720
GB1723
GB1728
GB1743
GB1749
GB1764
Project number
Ticket model
Pump and other parts materials
Xu decoration area
Grade
Pretreatment
JB/T 429792
Appendix A|| tt||Coating Inspection Record Sheet
(Reference Part)
Coating Inspection Record Sheet
End User
Ticket Manufacturing Number
Conclusion|| tt||with pumping
liquid delivery
contact
surface
square
painting environment
primer
Peptide
Coating
Preparation
Porridge
Thinner
Total dry film thickness
Gloss
Function layer inspection
Additional instructions:
Removal
Ambient temperature
Adhesion
Adhesion
Adhesion
Conclusion
Environmental visibility
%
mm
%
This standard was proposed and managed by Shen Zhishuicheng Research Institute. This standard was drafted at Shenyang Pump Research Institute's expense. The main drafters of this standard are Han Zhongshi and Sun Youfa. Level
Painting environment
Primer
Putty
Top coat
Release agent
Pump part name
Date
Group in the atmosphere
Method
Environmental setting
c
Adhesion
Adhesion
Adhesion
Total dry film degree
Gloss
Surface inspection
Approval
Inspection Department
Responsible department||tt ||Conclusion
Ambient humidity
%
mm
%
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