What Is the Cause of the Screw Rust?

1.       electroplating plant in the electroplating hardware screws, drying did not dry, resulting in the residual water vapor. Or after drying, condensate is formed in the packaging. Causes chemical reactions, produce sproducealike occurrence, resulting in hardware screw rust.

2.       long-term in the wet place to store, a long time, the metal screws slowly were corroded, was oxidized, resulting in serious rust.

3.       electroplating hardware screws, bad plating, the plating coating is too boring. Causes rust. All in all, the reasons are analyzed in four ways.

The four directions are:

1. storage environment

2. electroplating type

3. preservation method

4. the use of the environment.

Improvement measures: storage environment: hardware screws in the appropriate environment, should not be too wet tide, should be ventilated, ventilation, should not have too much water and gas place. There should be a stand to put the hardware screws up and not come into contact with the ground. Plating type: should choose the salt spray test time is a little longer electroplating color. Plating when to plate good, electroplating layer can not be too stoic. The preservation method and storage environment are similar, can not be placed in a wet place. Use the environment, also similar, can not be placed in salinity, acidity, salty high, high corrosion, high temperature, high humidity environment.