FAG bearing corrosion is mainly divided into metal corrosion and human hand sweat. Metal corrosion accounts for the majority, and in many cases it cannot be avoided. Hand sweat can also cause FAG bearing corrosion, mainly because sweat film will produce a sweat film on its surface, and the interaction will cause electrochemical reaction and lead to corrosion, but it can be avoided, such as tools with gloves for taking parts.
Metal corrosion mainly includes:
1 surface finish; 2 chemical structure and composition of metal materials; 3 solution composition and pH value of metal surface; 4 environmental medium; 5 ambient humidity and temperature.
Anti-rust pretreatment method:
Keep the surface clean and clean the appropriate method. General chemical treatment cleaning, mechanical cleaning and solvent cleaning methods. After the surface is cleaned, it can be dried by dry compressed air. It can also be dried with a dryer at 120~170 °C, and then dried with a clean gauze.
(1) Spraying methods such as some large-scale rust-proofing materials cannot be applied by immersion method, and are mainly applied to thin-layer anti-rust oil or solvent-diluted anti-rust oil, but attention should be paid to labor and fire protection measures.
(2) Brushing is not only to avoid accumulation, but also to prevent leakage. It is generally suitable for some special-shaped products or outdoor construction equipment that are not suitable for soaking or spraying.
(3) The thickness of the oil film by the immersion method can be achieved by controlling the temperature or viscosity of the rust preventive grease. Some small items are immersed in anti-rust grease to adhere a layer of anti-rust grease to the surface.
Metal corrosion mainly includes:
1 surface finish; 2 chemical structure and composition of metal materials; 3 solution composition and pH value of metal surface; 4 environmental medium; 5 ambient humidity and temperature.
Anti-rust pretreatment method:
Keep the surface clean and clean the appropriate method. General chemical treatment cleaning, mechanical cleaning and solvent cleaning methods. After the surface is cleaned, it can be dried by dry compressed air. It can also be dried with a dryer at 120~170 °C, and then dried with a clean gauze.
(1) Spraying methods such as some large-scale rust-proofing materials cannot be applied by immersion method, and are mainly applied to thin-layer anti-rust oil or solvent-diluted anti-rust oil, but attention should be paid to labor and fire protection measures.
(2) Brushing is not only to avoid accumulation, but also to prevent leakage. It is generally suitable for some special-shaped products or outdoor construction equipment that are not suitable for soaking or spraying.
(3) The thickness of the oil film by the immersion method can be achieved by controlling the temperature or viscosity of the rust preventive grease. Some small items are immersed in anti-rust grease to adhere a layer of anti-rust grease to the surface.
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