How to prevent rust after powder metallurgy processing?

How to prevent rust after powder metallurgy processing?

Powder metallurgy is a new type of net near-molding technology, which uses melting, heating, injection and pressing of metal powder to carry out the required mold molding. For some special materials such as refractory metals, refractory metals, high alloy and so on. So how to prevent rust after processing in powder metallurgy industry? The following is the introduction of Xiaobian zhongwei.

1： How to prevent rust after powder metallurgy machine processing?

Rust prevention method 1: Dacromet passivation

The Dacromet passivation treatment method can be used to produce a dense passivation film by using the unique chemical reaction of chromic acid with zinc, aluminum powder and base metal, which can effectively prevent the rust of powder metallurgy parts after processing, and has good corrosion resistance.

Rust prevention method 2: use antioxidant

For example, the surface anti-rust treatment of some iron-based powder metallurgy products can be sprayed on the metal surface with antioxidants, and the anti-rust effect is very good after drying.

Anti-rust method 3: use anti-rust oil

Powder metallurgy parts can be sprayed with anti-rust oil before packaging to avoid rust of powder metallurgy parts. After spraying anti-rust oil on the parts processed by powder metallurgy, they should always be sealed, and the anti-rust effect will be better.

The above is the method of powder metallurgy rust prevention shared by Zhenglang Xiaobian. I hope this article will help you. If you need to know more about relevant content, welcome to zhongwei Precision, we will have professionals to answer for you.