The so-called non-standard parts mean that the fasteners are not manufactured according to the regulations, and there are no relevant parameters. There are fastener companies that freely control their accessories, that is, special-shaped parts. Non-standard bolts are a commonly used one. There are many types of special-shaped parts, and they are widely used, such as: furniture, electrical appliances, engineering, construction and bridges need to use non-standard bolts. Tell you that you need to take some approach.

1. Use impregnating paints that do not contain oxidative components, such as epoxy urethane-based or unmodified epoxy-based impregnating paints. Choose paints that do not contain volatile acids. Vibration machinery should use solvent-free paint as much as possible.

2. When using melamine alkyd impregnating paint, the curing temperature and curing time should be adjusted. The curing temperature should be slightly higher than 130°C (such as 135°C) and the curing time should be greater than 180min, and it is necessary to strictly implement the process, especially in In the hot and humid season, from the perspective of rust prevention, the regular paint drying (curing) time in the paint factory's samples is not necessarily sufficient, and the motor has a specific internal shape.

3. Anti-corrosion treatment on the surface of stainless steel screws refers to the use of various methods to apply a protective layer on the metal surface. Its function is to isolate the metal from the corrosive environment to prevent the occurrence of the corrosion process, or to reduce the contact between the corrosive medium and the metal surface. And achieve the purpose of preventing or reducing corrosion.

Non-standard bolts can only be moisture-proof and moisture-proof without reducing their performance. In fact, the application of standard parts such as American-made bolts and U-bolts should also pay attention to moisture-proof, moisture-proof and corrosion-proof, so as to reduce the loss of standard parts and prolong their service life.

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