How to judge the test result of salt spray corrosion test box
The purpose of the salt spray corrosion test is to assess the quality of salt spray corrosion resistance of the plating, coating, etc. of products, parts, metal materials and products such as electronics, electrical engineering, automobiles, motorcycles, hardware tools, etc. For the evaluation of product quality, whether its evaluation standard is correct and reasonable is the key to correctly measure the quality of the product or metal against salt spray corrosion. After the salt spray corrosion test chamber has completed the salt spray test, the evaluation criteria for the test results should usually be proposed by the material or product standard being tested. In general tests, only the following aspects need to be considered: 1. Appearance after the test; Second, the appearance after removing the surface corrosion products; 3. The distribution and number of corrosion defects such as pitting corrosion, cracks, air bubbles, etc. can be evaluated according to the methods specified in Appendix C (eqv ISO 1462: 1973) of GB 6461, GB 12335, GB / T 9798-1997; 4. The time when corrosion begins to appear; 5. Weight change; 6. Microscope observation; 7. Changes in mechanical properties. After completing the test, the salt spray corrosion test box can only achieve the above seven aspects to reflect the integrity and perfection of the test. Only in this way is a complete and standard test. Choose Beijing Yashilin equipment to achieve ideal test in mind Self-Inking Stamp Ink,Self Inking Stamp Ink,Black Stamp Ink,Office Stamp Refill Ink Huhua Stationary Co., Ltd , https://www.huhuastamp.com