Introduce the maintenance of screws

1. When the screw factory rinses the screws, because this process is very important, it needs to be very careful, and there will be residues left on the surface of the screws during this process. Rinse This step is to be done after cleaning with silicate cleaning agents.

2. The accumulation must be present during the screw tempering and heating process, otherwise it will cause slight oxidation in the quenching oil.

3. The surface of the high-strength screw will show a white residue of phosphide, indicating that (the first point) the inspection is not careful enough during operation.

4. If the screw factory finds that the surface of the parts is blackened and causes chemical reaction, it means that the work during the heat treatment is not done well and the alkaline residue on the surface has not been completely removed.

5. The standard parts of parts and components will rust during rinsing, and the water used for rinsing should also be replaced frequently.

Sixth, the screw factory introduced that excessive rust phenomenon shows that the oil used for quenching oil has been used for too long, and new oil needs to be added or replaced