JB/T 7281-1994 Tractor coatings and painting process specifications JB/T7281-1994 standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T728194
Specification of Tractor Coatings and Painting Process
Published on 1994-07-18
Ministry of Machinery Industry of the People's Republic of China
Implementation on 1995-07-01
Machinery Industry Standard of the People's Republic of China
Specification of Tractor Coatings and Painting Process
Subject Content and Scope of Application
This standard specifies the coating materials and painting process for the main parts of tractors. JB/T 7281-94
This standard applies to the painting of the main parts of various tractors and agricultural transport vehicles, but does not apply to the painting of the electrical and instrument products and agricultural machinery. ] ||GB6807
JB/T5673
JB/Z236
ZBT60005
ZBT60 006
Classification of coating processes
Determination method for paint film flexibility
Determination method for paint film impact resistance
Determination method for paint film water resistance
Determination method for paint film heat resistance
Determination method for paint film moisture and heat resistance
Determination method for paint film gloss
Determination method for paint film chemical reagent resistance
Determination method for paint film thickness
Determination method for paint film weathering resistance
Determination method for paint film salt spray resistance
Technical conditions for phosphating treatment of steel workpieces before painting General technical conditions for painting of agricultural and forestry tractors and machinery Test method for degreasing degree of steel workpieces before painting Method for visual evaluation of paint films on agricultural and forestry tractors and machinery Method for determining adhesion performance of paint films on agricultural and forestry tractors and machinery - Press cutting method According to different working environment conditions and coating quality requirements, tractor coating processes are divided into four categories, as shown in Table 1. Approved by the Ministry of Machinery Industry on July 18, 1994
Implemented on July 1, 1995
Process category
Coating material
Coating category
High-quality weather-resistant coating
(TQ-11-××)
Ordinary weather-resistant coating
(TQ-2-1-××)
Heat-resistant coating
(TQ-5-R-XX)
Oil-resistant coating
(TQ-5JY××)
4.1 Surface treatment agent before coating
Medium alkaline or weak alkaline degreasing agent
Liquid rust remover
Liquid or solid surface conditioner|| tt||Liquid or solid phosphating agent
4.2 Primer
8603 Cathodic electrophoretic paint
HS series
Cathode electrophoretic paint
H11-51
F11-95
711—2
H06—2
X06—1
C06—11
4.3 Topcoat
JB/T 728194
Table 1 Classification of coating processes
Applicable scope
Hood assembly, fender, upper cover plate, cab and other parts with high requirements for decorative protection
General exposed surfaceswww.bzxz.net
Muffler, exhaust pipe, etc.
Parts that often come into contact with engine oil, such as gear
Inner surface of wheel box, etc.
Various colors of epoxy ester drying electrophoretic paint
Various colors of phenolic oil drying electrophoretic primer
Iron red ring Oxygen pure phenolic electrophoretic primer
Iron red epoxy ester primer
Zunhua primer
Iron red alkyd primer
Iron red alkyd primer
Various amino alkyd drying automobile topcoat
Various amino baking paint
A04—14 Various amino electrostatic baking paint
C04--2 Various alkyd enamel paint
C04—42 Various alkyd enamel paint
W61-25 aluminum powder silicone heat-resistant baking paint
500 ℃ organic silicon heat resistant paint
600℃ organic silicon heat resistant paint
Various colors of powder coating
Various colors of quick-drying amino baking paint
4.4 sealant
JN-10 automobile body sealant
CM1PVC welding seam sealant
Surface condition of workpiece before painting
No oil rolling, grease and
Rust spots or oxide scale, etc.
No oxide scale, hair
thorns, sand grains, etc.||t t||Only topcoat is allowed
Only primer is allowed
4.5 Thinner
Spot welding sealant
Matching thinner
4.6 Other materials
Adhesive gauze
320-400 sandpaper
JB/T728194
4.7 Other painting materials are allowed under the premise of meeting JB/T5673. 5 Painting process
5.1 See Table 2 for Class A painting process.
5.2 See Table 3 for Class B painting process.
5.3 See Table 4 for Class C painting process.
5.4D-type painting process, see Table 5.
6Painting process management
6.1The operator must strictly follow the process, regularly test the groove roller, control the process parameters, and keep records. Key equipment must be operated and maintained by a dedicated person.
6.2Pre-treatment soil art parameter inspection record table, see Table 6.6.3Primer and topcoat process parameter record table, see Table 7. Tuling product quality inspection items and inspection cyclePainting product quality inspection items and inspection cycle, see Table 8. JB/T7281-94
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Decryption list
East District Grain
（）工
（）工
JB/T728194
Sui Peng SH
（）工
（）工
JB/T 7281-94
JB/T 7281—94
608985
TUS/Industry
Policy Points
(》Industrial
(Energy Machinery) Pipe
Pre-degreasing
Addition Amount
JB/T7281-94
Addition Amount
Pre-treatment Process
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