Precautions for Using Bolts and Reasons for Bolt Rust

Matters needing attention in the process of using bolts:

1. The bolts will age rapidly when exposed to light, so the coating process should be carried out indoors.

2. If the baking temperature of the bolt is too low or too high, it will lose its anti-corrosion ability. Therefore, the bolts should be baked in a suitable temperature range.

3. The life cycle of the bolt is very short and should be used up as soon as possible.

4. Bolts have poor wear resistance, so they should be sealed with other wear-resistant coatings after the bottom is coated.

There are four reasons for bolt rust:

1. Use the processed bolts with lock washers. Since the corrosion potentials of the two metal materials are different, the bolts with the lower potential are more likely to be corroded.

2. The coating on the bolt surface is not evenly covered, and rust will start in the uncovered area.

3. Because the pretreatment did not remove the rust on the rough embryo, red rust will appear from under the coating.

4. The bolt is not resistant to acid and alkali, so the acid and alkali environment is also the cause of rust.