After the powder metallurgy parts are machined, how to prevent rust?
2, improve the way: Immersion replacement type rust preventive oil, in fact, the base oil or kerosene based, but added a corrosion inhibitor, can improve rust prevention period, about 6-12 months.
3, fine packaging: general is made of antirust paper or film, packaging finished powder metallurgy parts antirust oil immersion and dry, the powder metallurgy transport packaging, especially export packing is this way, such as piston ring, rust proof membrane can be more. But how specific matching, or exquisite.
1, the traditional method: soak kerosene can be short-term rust prevention, but do not expect long-term rust prevention or transportation process rust prevention, rust prevention period is generally in 1-3 months or so.
