anti-rust oil protect the Powder metallurgy gear from rust
After the production of powder metallurgy gears is completed, in order to prevent the gears from rusting during storage and transportation, a certain amount of powder metallurgy anti-rust oil is usually sprayed on the surface before packing the gears to prevent the gears from rusting. After being sprayed with powder metallurgy anti-rust oil, if it is kept in a sealed state, it will not rust within one or two years, and put a large plastic bag in the packaging carton and outside the product, and seal it after packaging to achieve the purpose of isolating the air. .
Powder metallurgy gear blackening treatment
Blackening treatment is generally applied to powder metallurgy pulleys. Blackening is a common method of chemical surface treatment. The principle is to produce an oxide film on the metal surface to isolate the air and achieve the purpose of rust prevention. Blackening treatment can be used when the appearance requirements are not high. In addition, the environment of the powder metallurgy gear product warehouse must be dry, ventilated, and dust-proof. Adopting reasonable inventory, reducing product backlog, and accelerating product turnover are also important anti-rust measures.