How do precision castings prevent rust?

Air corrosion or discoloration is caused by oxygen, humidity, acid, salt and moist air, which is called rust or rusting.

Metals or alloys can convert metal surfaces into low-strength compounds. Therefore, investment casting usually requires intermediate rust prevention.

Water-based rust prevention or oil-based rust prevention are usually used for rust prevention.

No matter which antirust method is selected, the casting shall be scrubbed first to remove any dirt on the surface and promote the formation of passivation film.

Composition, using temperature and brush. After pouring, dry it with dry, hot and dry compressed air, and then conduct anti-rust treatment.