The protective performance test of electroplating has various test methods and methods according to the needs of users.
According to the nature and category of the test, it can be divided into weather resistance test, corrosion resistance test, anti-discoloration performance test, three-proof performance test, etc., and each type of test has various methods.
Taking the weather resistance test as an example, the weather resistance test is divided into the following .
1. The outdoor weather resistance test can also be called the outdoor exposure test. This is a test method in which the tested sample is placed outdoors for a long time, and it is an all-natural and harsh method.
2. Outdoor light fastness test Cover the tested sample properly from rainwater , and only allow it to be affected by natural light. After a long period of storage, evaluate its light fastness.
3. Outdoor shielding test Place the tested sample in a device that is not exposed to direct sunlight and can shield the wind and rain, and place it outdoors. After a long period of aging, test its anti- .
In terms of test methods, there are different methods according to different products. Taking salt spray test as an example, there are three methods of salt spray test according to the international standard (ISO), namely neutral salt spray (NSS), acetic acid salt spray ( ASS) and copper salt accelerated salt spray (CASS) test. Our country has standards corresponding to it, in fact, it refers to the implementation of international standards. The basic method among these three methods is the neutral salt spray test method, and the latter two are enhanced test methods , that is, the neutral salt spray test method is changed to adding acetic acid or further adding copper ions that can form a galvanic couple. Used to inspect certain products and artifacts used in harsh environments.