Steps to check electronic contact pads

1. Appearance inspection 　　Inspect the electronic contact sheet firstly from the appearance inspection to check whether it has any defects such as deformation, burrs, scratches, rust, etc. Then check whether its size meets the design regulations.　　2, performance test　　 then perform performance test on the electronic contact sheet. The performance test is carried out by salt spray test, assembly inspection and other aspects. 3. Salt spray test The salt spray test standard is continuous atomization for 24 hours, or a solution of distilled water and sodium chloride, with a concentration of 5%, and soaking for 48 hours. The requirement is that the surface of the electronic contact piece cannot be wiped with a cloth. Because the surface of the electronic contact piece will be plated with a layer of zinc, nickel, chromium, etc., it can meet this test. The salt spray test is to check whether the corrosion resistance of the electronic contact piece meets the standard. 4. Assembly inspection The requirement of assembly inspection is that the electronic contact piece test assembly must not be loose or offset and misaligned. It must be tightly matched with the corresponding parts and must not be jammed, warped, crushed, cracked, loose, or loose. Detachment and other phenomena.