Coating standard: GB / T 13492-92 various colors of automobile finish

Core tips: 1 subject content and scope of application This standard specifies the technical requirements, test methods, inspection rules, marks, packaging, storage, etc of different types of automobile finish This standard is applicable to the coating on the surface of the body and trunk of all kinds of freight cars and buses 2 reference standards GB 1727 general preparation of paint film GB 1729 measurement of film color and appearance GB 1764 determination of film thickness GB 1765 paint film preparation method for determination of moisture resistance, salt fog resistance and weather resistance (artificial acceleration) GB 1766 film Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Home of coatings: 1 subject content and scope of application this standard specifies the technical requirements, test methods, inspection rules, marks, packaging, storage, etc of different types of automotive finish This standard is applicable to the coating on the surface of the body and trunk of all kinds of freight cars and buses 2 Reference standard GB 1727 general preparation method of film GB 1729 test method of film color and appearance GB 1764 test method of film thickness GB 1765 test method of film preparation method of moisture resistance, salt fog resistance and weatherability (artificial acceleration) GB 1766 rating method of film weatherability GB 1767 test method of film weatherability GB 1865 test method of film aging (artificial acceleration) GB 1922 solvent oil GB 3186 sampling of paint products GB 5209 determination of water resistance of paints and varnishes immersion method GB 6682 specification for laboratory water GB 6739 pencil test method for film hardness GB 6753.1 test method for fineness of paint grinding GB 6753.3 test method for storage stability of paints and varnishes GB 9271 standard test panel GB 9274 determination of liquid resistance of paints and varnishes GB 9274 9278 temperature and humidity for condition adjustment and test of paint samples GB 9286 cross cut test of paint and varnish film GB 9750 packaging mark of paint products GB 9753 cup test of paint and varnish GB 9754 determination of 20 °, 60 ° and 85 ° specular gloss of paint film of paint and varnish without metallic pigment 3 product types are I, II and III 4 Technical requirements: the product shall meet the following technical requirements: table 15 test method 5.1 general conditions of test 5.1.1 sampling shall be conducted according to gb3186 5.1.2 the state regulation and test environment shall be carried out in accordance with gb9278 5.1.3 the standard test plate shall be conducted according to gb9271 5.1.4 paint film shall be in accordance with gb1764 5.1.5 in the performance test of the paint film, except for the bending test and pencil hardness, the paint film is prepared on the tinplate, and other items are made of 08 steel plate which is phosphatized by the salt layer, according to the method of 3.0 in gb1727, and coated with the matching cathodic electrophoretic primer (thickness of 20-23 μ m), and then coated with the top coat after drying The thickness of finish coat is 30-40 μ M 5.2 the state of materials in the container shall be in accordance with the provisions of gb3186 5.3 the fineness shall be in accordance with gb6753.1 5.4 storage stability shall be in accordance with gb6753.3 5.5 after the grid test is conducted in accordance with gb9286 (cutting distance of 2mm), use transparent tape to paste the grid, press the tape with the thumb to discharge the bubbles below, hold the end of the tape that is not adhered within 60-120s, turn it to the position as close to 180 ° angle as possible, tear the tape off quickly (do not pull it abruptly) and observe the paint film at the grid 5.6 pencil hardness shall be in accordance with gb6739, and shall be carried out on the test plate with the base material of tinplate 5.7 bending test shall be carried out according to gb6742 5.8 the gloss shall be in accordance with gb9754 5.9 cupping test shall be carried out according to gb9753 5.10 water resistance shall be carried out in gb6682 class III water according to gb5209 5.11 the vapor oil resistance shall be soaked in 120 solvent gasoline complying with gb1922 according to 5 of gb9274 5.12 after the film is prepared according to 5.3, put it into a 90 ± 2 ℃ incubator for 240 hours Take it out and place it for 0.5h at room temperature, then put it in - 40 ± 2 ℃ for 24h at low temperature, then take it out and place it for 0.5h at room temperature and then test 2mm grid test 5.13 the accelerated aging test shall be conducted according to gb1865 after the plate is made according to gb1765 5.14 after the plate is made according to gb1765, the weather resistance shall be carried out according to gb1767 5.15 the freshness shall be measured by the freshness tester The steps are: 5.15.1 start the power switch, observe the voltmeter, adjust the potentiometer for the voltage, and make the pointer at the position where the voltmeter boundary is consistent If the pointer is still at the left side of the boundary after adjustment, the power supply shall be replaced 5.15.2 place the standard mirror on the table, place the measuring window at the bottom of the machine on the mirror, then start the power switch to observe the standard plate reflected on the mirror from the visual cylinder, and confirm that the number of GD value 10 on the plate can be read clearly 5.15.3 place the measuring window on the coating surface to be measured, turn on the power switch, and observe the standard plate reflected on the coating film from the visual cylinder The reading can be clearly numbered as GD value 5.15.4 repeat the determination five times and take the average value as the result 6 Inspection rule 6.1 All technical requirements listed in this standard are type inspection items Under normal production conditions, type inspection shall be carried out at least once a year The material state, fineness, grid test, pencil hardness, bending test, luster, cup protrusion test, vapor oil resistance and freshness in the container are factory inspection items 6.2 the product shall be inspected by the inspection department of the manufacturer according to the provisions of this standard The manufacturer shall ensure that all the products delivered from the factory shall meet the technical requirements of this standard, and the products shall be provided with the certificate of conformity If necessary, the use instructions and precautions shall be attached 6.3 the receiving department has the right to inspect the products in accordance with the provisions of this standard If the quality is found not to meet the technical requirements of this standard, both the supplier and the Demander shall re sample the products in accordance with gb3186 for re inspection If the quality still does not meet the requirements of this standard, the products are unqualified, and the receiving department has the right to return the products 6.4 the product shall be sampled according to gb3186, and the sample shall be divided into two parts, one for sealed storage for one year, and the other for inspection 6.5 the package, quantity and mark of the product shall be inspected and checked before leaving the factory In case of any damage or leakage of the package, discrepancy of the quantity and non conformity of the mark, it shall be handled in time 6.6 in case of any dispute on product quality between the supplier and the demander, the product supervision and inspection institution shall conduct arbitration inspection 7 marks shall be in accordance with gb9750 8 Packaging, storage and transportation 8.1 the products shall be stored in clean, dry and sealed containers, with the capacity not more than 95% of the volume When the product is stored, it shall be kept ventilated, dry and protected from direct sunlight, and shall be isolated from the fire source and heat source When the temperature is too high in summer, it shall be cooled 8.2 during transportation, the product shall be protected from rain and sun exposure, and shall comply with relevant regulations 8.3 under the storage conditions of 8.1 and 8.2, the effective storage period of the product is one year from the date of production 9 Safety and health regulations: the paint contains organic solvents such as xylene, butanol and aromatic hydrocarbon, which is flammable liquid and has certain toxicity The construction site shall pay attention to ventilation, take safety measures such as fire prevention, static electricity prevention and poisoning prevention, and abide by the coating operation, safety operation regulations and relevant regulations Appendix a construction reference (Reference) A1 because this standard only specifies the main technical indicators of passenger and freight car finish, the functional requirements for product viscosity, drying conditions, covering power, etc., can be determined by the user and the manufacturer according to the specific negotiation of different types of products A2 diluent for viscosity adjustment can be matched or special diluent according to specific product type A3 products beyond the storage period can be inspected according to this standard If the results meet the requirements, they can still be used ————————- additional note: this standard is proposed by the Ministry of chemical industry of the people's Republic of China This standard is under the jurisdiction of the National Technical Committee for coating and color standardization This standard is drafted by Shenyang paint factory The main drafters of this standard are Tonglan, Zhao Shengqi, Xu Yaqin and Zhou Dexiang Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,