Black Round Head Phillips Screw

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Screw maintenance should pay attention to the problem

Screws for fasteners are commonly used on major machinery and equipment. They also have a close relationship with the use of mechanical equipment. If screws are suddenly damaged during use, they may seriously damage the equipment and cause the equipment to fail to function properly. Therefore, we are In the process of using screws, it is better to perform maintenance and maintenance so that it can be used more safely.

Use the following six issues when using the screws for maintenance

First, the process of rinsing the screws is very important. It needs to be very careful, and there will be residue left on the surface of the screws during the process. Rinse this step after the silicate cleaner is cleaned.

Second, screw tempering during the heating process to be realized, otherwise it will cause a slight oxidation in the quench oil.

Third, the surface of high-strength screws will appear phosphide white residue, indicating that (1 point) operation is not careful enough careful inspection.

Fourth, the parts of the surface will have a black phenomenon to produce chemical anti-use, indicating that the work done in the heat treatment is not well done, the surface of the alkaline residue is not completely removed.

Fifth, the rusting of the standard parts in the rinsing will occur, and the water used for rinsing should be replaced frequently.

Sixth, the phenomenon of excessive corrosion indicates that the oil used for quenching oil has been used for too long and it needs to be added with new oil or replaced.