JB/T 9857-1999 This standard is a revision of ZB J84 014-88 "General Technical Conditions for Painting of Rock Drilling Machinery and Pneumatic Tools", and the revised technical content has been improved. This standard specifies the technical requirements, test methods and inspection rules for product painting. This standard applies to the painting of rock drilling machinery and pneumatic tool products. This standard was first issued on January 1, 1982 and revised for the first time on January 1, 1988. JB/T 9857-1999 General Technical Conditions for Painting of Rock Drilling Machinery and Pneumatic Tools JB/T9857-1999 Standard download decompression password: www.bzxz.net

10:8 73.100.10
Machinery Industry Standard of the People's Republic of China
JB/T9857-1999
Rock Drilling Machine and Pneumatic Tools
General Specifications for Painting
General specifications for paintings of rock drilling machine and pneumatic tools 1999-06-28 Issued
National Machinery Industry Bureau
2000-01-01 Implementation
JB/T9857-1999
This standard is a revision of 2BJ84014-8 General Specifications for Painting of Rock Drilling Machine and Pneumatic Tools. Compared with 2BJ84014-8, this standard adds labor safety and health technical requirements for pre-treatment process and rolling process; the safety regulations are revised, and the main technical contents remain unchanged. This standard replaces 2B184014-8 from the date of implementation. Appendix A of this standard is a reminder appendix.
This standard is proposed and approved by the National Technical Committee for Standardization of Rock Drilling Machinery and Pneumatic Tools. The drafting unit of this standard is Tianshui Pneumatic Tool Factory. The main drafters of this standard are Jing Hongzhen and Zhang Chunmei. This standard was first issued in 1982. It was revised for the first time in 1988. This is the second revision. www.bzxz.net
Machinery Industry Standard of the People's Republic of China
Drilling Machinery and Pneumatic Tools!
General Technical Conditions for Painting
Fenernl specificalinns for paintings of rockdrilling mechmeuad pncutnatic luokThis standard specifies the technical requirements for the products, and the test and inspection procedures are used for the painting of rock drilling machinery and pneumatic tools. 2 Reference standards
JB/T9857-1999
BJ849148
The following standards contain relevant meanings and are incorporated into the provisions of this standard through their inclusion in the standards. At the time of publication of this standard, the versions shown are valid. All standards will be revised in due course. Parties using this standard should consider the possibility of using the following new versions of the standard: GB/IJ732-1993 GB/T.401979 GB 6514-1995 GR 769-1999 6028-199x 3 Technical requirements Determination of film wear resistance Determination of film moisture content Determination of film humidity ... Before rolling, the protrusions, burrs, sharp edges, edges and grooves on the workpiece must be flattened, polished and polished to ensure that the workpiece is flat and clean.
3.1.3 After rolling, the workpiece must be thoroughly derusted and cleaned to ensure that the workpiece surface is free of dust, chips, residues, rust and oil stains: 3.2 Requirements for rolling process
3.2.1 The rolling process should comply with the provisions of GR65:-. 3.2.2 After the painted surface is decontaminated, anti-rust primer should be applied immediately to prevent rust or dirt from falling on it. The paint should be applied evenly without any rust. After the paint is dry, it can be scratched if necessary before moving on to the next step. 3.3.3 Defects should be first patched with G7-5 paint. 3.2.4 After each layer of putty, scrape it thinly. Each scraping should be done after the first layer is dry. After the putty layer is flat, the surface should be smoothed.
3.2.5 For pneumatic 1. tool products, before applying the primer, they should first be sprayed with X061 chemical primer (packaging) or treated with edimide to increase the adhesion of the organic coating to the metal surface and extend the service life of the organic coating. Approved by the State Bureau of Visual Industry on June 28, 1999, implemented on January 1, 2000
3.2.6 1. The paint should be applied in a clean, dry environment with good air circulation, sufficient sunlight and relative temperature not exceeding 1%. When the relative humidity is above 18%, all kinds of external chemical paints must be applied. Some problems must be considered, such as moisture-proof test, etc. 3.2.6.2 The paint should be applied quickly on frozen surfaces 3.2.6, 3.2.6.1 The air vent of the spray equipment should be equipped with a water filter. 3.2, Before coating, the surface should be protected from dirt, small objects and other objects falling on it. Children should avoid accidental injuries. 3.2.8 Each coat of coating must be completely cleaned after use. 3.2.9 The finished ball mold is ready for the warehouse. 3.3 Painted parts
3.3.1 After the product is assembled and qualified, the surface that needs to be painted should be painted. 3.3.2 Painted purchased parts: outsourcing parts do not need to be painted. 3.3.3 After calcium hydroxide, oxidation, and plastic spraying, the surface of the parts can be unpainted. 3.3.4 Rubber parts and plastic parts are not painted. 3.4 Safety signs
The paint of the safety signs should comply with the specifications of B602%. 3.5 Oil speed materials
1.5.1 Drilling vehicles, drilling machines, drilling racks, drilling machines, pneumatic machinery, impact pneumatic tools are recommended to use the following materials: a) Primer: C06-1 iron red alkyd primer, Q06-4 iodine base primer or G06-4 zinc yellow, iron red perchlorethylene primer; b) Primer: C075 various alkyd primer, 075 various nitrocellulose primer or 303 various vinyl primer: C010 thick primer, Q065 nitrocellulose primer or Q0G5 various overload primer: d) surface: C0448 various alkyd enamel, Q042 various nitrocellulose external enamel or G04[9 various perchlorethylene enamel, packaging! 3.5.2 Rotatable pneumatic lower tool recommended Materials used: a) Primer: A-type primer, A-type primer liquid - various basic paints b) Exciters: (07- various ammonia, A07-1 various natural base paint or Q07-5 various nitrocellulose primers; e) Three-layer primer: G06-5 perchlorethylene (room second coat, A06-3 nitrogen-based drying second coat or Q06-5 nitrocellulose second coat primer; d) Topcoat: G16-31, G! 6-32 Various over-mature/olefin hammer paint (packed in 3, A16-51 full-color hydrogen grass baking effect or Q16-31 various effect paint.
3.5.3 When painting the product, the paint, putty, second coat and topcoat should be used in a solid manner. 3.5.4 The inside of the hydraulic equipment tank should be painted with resistant paint. 3.5.5 When diluting various paints, special dispersants for this type of paint must be used. 3.6 Requirements for product paint film
3. Stone! Finished product quick production It should be beautiful, elegant, and have a flat, smooth appearance and uniform color. 3.6.2 The appearance should not have defects such as roughness, oil speed, scars, ageing marks, wrinkles, bubbles, melt wrinkles, flow marks, peeling, residue, hair, gloss, and impurities. It should not miss or apply different colors by mistake. 3.6. The joints of the parts with standard packaging must be flat, uniform, with obvious lifting lines, and no thinning and peeling. 9B57-1999
3.4 ​​The total thickness of the film is less than 0.0?m (sheet thickness of the active layer). 3.6.5 The net film thickness is less than 3.4. The net film thickness can refer to the actual thickness of 44. 4 Test methods and inspection rules
4! The product must meet the requirements of 3.5 and can be used. 4.2 The production station should ask the inspection department of the manufacturer to meet the requirements of 3.6 under sufficient light conditions. After the inspection, the finished product paint film can be packaged. 4.3 The finished product paint film can be inspected by the following inspection methods: a) Color and external specifications: compare with the standard test plate: b) Gloss: check against the standard test plate: ) Thickness: use thousandths Measure the film thickness of the test piece prepared under the same conditions as the product film [except for the preparation of the filter test piece] according to Appendix A (Standard Appendix);
d) Formability: Press the paint with the thumb firmly, there should be no dents and marks; Stickiness: It should not stick to the paint surface;
Door hardness: Scratch the paint film with a fingernail, there should be no dents and scratches, 4.4 Continuous film performance standards and test methods
4.4.1 In the following circumstances, the product paint film should be sampled and inspected: When a new variety of paint materials is used:
b) When the original paint formula has a significant change that affects the paint film performance; When the paint materials that have been in stable production are used for half a year. 4.4.2. ... 2.4 Resistance to moisture and heat
Test according to the provisions of B/1740:
Al test piece base
JR/T9857-1999
Record A
Standard)
Paint test piece preparation method
Use Q235 steel, paint aluminum plate, and ensure smooth appearance, flat surface, no dents, thorns, and angles. 45A2 bottom size
Generally 270mmx150mmv6mnlz
A3 test piece number up to
Yearly test items need to be tested in parallel with fast test pieces, and another standard test piece is required for comparison during inspection. 44 Test comparison
Test the test piece in parallel with the product coating. After the A5 base plate is completely dry, seal the edges of the test piece with 5~10mm diameter paint. The test piece after the coating construction must be cured indoors for 5-7 days before it can be used for testing.
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