1. Surface cleaning: the proper cleaning method must be selected according to the nature of the surface and the current conditions. The common methods are solvent cleaning, chemical treatment cleaning and mechanical cleaning.

2. After the surface is dried and cleaned, it can be dried with filtered dry compressed air, or it can be dried with a dryer of 120 ~ 170 ℃, or it can be dried with clean gauze. Method of coating antirust oil 1) immersion method: some small articles are immersed in antirust grease to make its surface adhere to a layer of antirust grease. The thickness of oil film can be achieved by controlling the temperature or viscosity of antirust grease.

3, some large anti-corrosion products can not be oiled by immersion method. Generally, the filtered compressed air of about 0.7Mpa pressure is applied to clean the air. Spray method is suitable for solvent dilution antirust oil or thin layer antirust oil, but must adopt perfect fire protection and labor protection measures.