What are the methods for moisture-proof and moisture-proof special screws?

Iron special screws are prone to rusting in damp environments. To prevent rusting, special screws need to be moisture-proof and moisture-proof. The following is an introduction to the moisture-proof and moisture-proof methods for special screws:

(1) Vibration machinery, try to use solvent-free paint as much as possible.

(2) It is best to choose impregnating paint without oxidation components, such as epoxy urethane based or unmodified epoxy based impregnating paint.

Special screws

(3) When using melamine acid impregnating paint, the curing temperature and curing time should be adjusted. The curing temperature should be slightly higher than 130 ℃ (such as 135 ℃) and the curing time should be greater than 180 minutes. The process must be strictly followed, especially in high temperature and humid seasons. From the perspective of rust prevention, the drying (curing) time specified in the paint factory's samples may not be sufficient, and the motor has a specific internal shape.

(4) Use paint that does not contain volatile acids.

(5) Choose a paint with good hydrolysis resistance.