JC/T 402-1991 Technical requirements for anti-rust coating of cement machinery
Some standard content:
Industry Standard of the People's Republic of China
JC/T402--91
Technical Conditions for Anti-Rust Painting of Cement Machinery
Published on 1991-02-21
Published by the State Bureau of Building Materials Industry
Implemented on 1991-08-01
Industry Standard of the People's Republic of China
Technical Conditions for Anti-Rust Painting of Cement Machinery
Subject Content and Scope of Application
This standard specifies the technical requirements, test methods and inspection rules for painting and anti-rusting of cement machinery. JC/T402-91
This standard applies to painting and anti-rusting of cement machinery. The painting and anti-rusting packaging of other building materials machinery should also be used as a reference. 2 Reference standards
GB1720
GB1729
GB1730
GB1731
GB1732
GB1733
GB1743
GB1764
GB3181
GB4879
3 Technical requirements
Determination of film adhesion
Paint film color and appearance Observation method
Determination method of paint film hardness
Determination method of paint film flexibility
Determination method of paint film impact resistance
Determination method of paint film water resistance
Determination method of paint film gloss
Determination method of paint film thickness
Standard sample of paint film color
Anti-rust packaging
3.1 Basic requirements
3.1.1 From the date of leaving the factory, under normal storage and transportation conditions, the corrosion resistance period of the product shall not be less than 1 year. 3.1.2 If the user has special requirements, it shall be implemented in accordance with the provisions of the supply and demand contract. 3.2 Painting materials
3.2.1 The selection of primer, putty, intermediate paint, topcoat and thinner used should be reasonably matched. 3.2·2 The quality of various coatings must comply with the provisions of relevant standards. For coatings with unclear labels, damaged packaging or expired, they should be re-tested according to the standards, and only qualified ones can be used.
3.3 Anti-rust materials
3.3.1 Cleaning and anti-rust materials must have a product factory certificate before they can be used. 3.3.2 New anti-rust materials must pass product identification before they can be used. 3.4 Painting, anti-rust areas and topcoat colors
3.4.1 The machined surfaces, blued parts, fasteners, accessories and tools of the product must be rust-proof; high-temperature working parts, easily worn parts, non-metallic parts, non-ferrous metal parts, electroplated parts and internal components of the electrostatic precipitator shall not be painted; the rest shall be painted. 3.4.2 The various colors and names of the topcoat shall comply with the provisions of GB3181. 3.4.3 The topcoat color regulations for the main parts of major cement machinery are shown in Table 1. Approved by the State Bureau of Building Materials Industry on February 21, 1991, Classification Standard Industry Information Science and Technology Operation
Implementation on August 1, 1991
Machinery Name
Grinding, packaging and various conveying machinery
Carrying, cooling and dust removal machinery
Mining and pre-homogenizing machinery
Other cement machinery
JC/T402--91
3.4.4 The color of the topcoat of the main parts of the cement machine stack is specified in Table 2. Table 2
Parts Name
Chassis of mobile machines, foundation frame of fixed machines, wheel and spoke plates of rotating parts with high rotation speed and exposed, inner surface of oil-containing parts, non-machined surface of parts not soaked in oil, surface of parts soaked in water and slurry 3.4.5 The color of the topcoat of pipelines is specified in Table 3. Main body color
B05 Sea gray
YR04 Withered yellow
B05 Sea gray
R03 Bright red
Y08 Dark yellow
3.5 Surface pretreatment of painted and anti-rust parts The burrs, flash, oil stains, flaky oxides, sand sticking, gates, nozzles, rust, etc. on the surface of painted parts must be cleaned. 3.5.1
3.5.2 Anti-rust parts should be cleaned and free of rust, water marks, oil marks and other foreign matter. The original processed surface shall not be damaged. Table 3
Pipeline name
Fuel oil supply pipeline
Fuel oil return pipeline
Lubricating oil supply pipeline
Runfen oil return pipeline
Hydraulic transmission oil pipeline
Clean water pipeline
Return water pipeline
Mud pipeline
Slurry pipeline
Compressed air pipeline
Pulverized coal transportation pipeline
Cable, wire pipeline
3.6 Quality requirements of Luan membrane
3.6.1 The quality requirements of primer layer are shown in Table 4.
Standard product quality Various marking industry color
YR01 light brown
YR05 brown
Y06 light yellow
Y08 dark yellow
Y07 medium yellow
G02 light green
G05 dark green
Y09 iron yellow
R01 iron red
PB03 medium iron blue
B05 sea gray
JC/T402--91
Indicator item
Adhesion
Paint film thickness
Quality requirements of topcoat are shown in Table 5.
Indicator items
Coating color
Coating thickness
Coating appearance
Coating gloss
Impact strength
Physical properties
3.7 Anti-rust packaging quality requirements
Water resistance
Quality requirements
Inspect according to the specified method, no peeling
≥30um
No
Quality base requirements
Compared with standard color samples The same board
No dirt, stain, no sagging, bubbling, cracks, beryllium skin, sludge, peeling, different color surfaces are clean and not contaminated with each other
Surfaces that have a direct impact on the appearance, the paint film gloss is 70% 490N.cm (50kg.cm)
According to the specified inspection method, the gloss should not change 3.7.1 Anti-rust packaging should be implemented in accordance with GB4879, and the quality should not be lower than that of Class C products. The anti-rust agent layer on the surface should be uniform and continuous, and there should be no bubbles or foreign matter. 3.7.2
4 Test methods and inspection rules
The quality of metal surface pretreatment should be inspected piece by piece according to the requirements of Article 3.5 of this standard. Visual inspection is allowed. For key anti-rust 4.1
parts, the wiping method in GB4879 should be used for inspection. 4.2 The inspection of the primer layer shall meet the requirements of Table 1 of this standard according to the provisions of Table 6. 4.3 The inspection of the paint layer shall meet the requirements of columns 1, 2.3 and 4 in Table 5 of this standard according to the provisions of Table 7. 4.4 The manufacturer shall conduct a comprehensive inspection of the paint film quality once a year according to the provisions of Table 8. A comprehensive inspection shall be carried out at any time when the following situations occur: when changing the paint process or paint materials; when resuming production after a one-year suspension.
Standard fee for each company
Indicator item
Adhesion
Film thickness
Indicator item
Film colorwww.bzxz.net
Film thickness
Dirty, oily
Sagging, bubbling
Cracks, wrinkles, slippage, peeling
Boundaries between different colored paint surfaces are clear and regular
Indicator item
Dark film color and appearance
Film gloss
Film thickness
Impact strength
Physical properties
Flexibility
Water resistance
JC/T402--91
Test method
According to GB1720||tt| |According to GB1764
Inspection frequency
The number of random inspections in each batch is 3%, but not less than 1 unit. Inspection piece by piece
Inspection method
According to GB3181
According to GB1764
Inspection frequency
Remote inspection
1 unit in each batch
Inspection piece by piece
Inspection method
According to GB1729
According to GB1743
According to GB1764
According to GB1732
According to GB1731
According to GB1730
According to GB1733
The inspection of the quality of rust-proof packaging shall comply with the following provisions and meet the requirements of Article 3.7. For batch-produced products, 3% of each batch will be sampled for unpacking inspection, and one unit of single-piece small batch products will be sampled for inspection; 8.
For the parts that are rust-proofed by VPI paper, the integrity of the external packaging should be checked; some anti-rust grease should be removed, and the products should be spot-checked to be free of rust, foreign matter and water vapor. Additional remarks:
This standard was proposed by China Building Materials Equipment Company. This standard is under the jurisdiction of Tianjin Cement Industry Design and Research Institute. This standard was drafted by Tianjin Cement Industry Design and Research Institute, Chaoyang Heavy Machinery Factory, and Wuxi Building Materials Instrument Machinery Factory. The main drafters of this standard are Fan Yongxiang, Liu Guixia, and Ping Suijuan. Standard authorized drawings, products, products, various standards, industries, can be downloaded for free. People's Republic of China
Industry standard
Technical conditions for paint and rust prevention of cement machinery
JC/T402-91
Published by China Standards Press
(Beijing Fuwai Sanlihe)
China Standards Press, Beijing Printing Factory, Xinhua Bookstore, Beijing Distribution Office, sold by Xinhua Bookstores in various places, copyright exclusive, no reproduction allowed
Format 880×1230
Printing sheet 1/2
First edition in July 1991
Word count 8000
First printing in July 1991
Print number 1-1700
Heading 167-32
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