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Types Of Rust Preventive Oils

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Update time : 2020-07-24 11:00:48

Depending on the performance and use, anti-rust oil can be divided into the following categories in China:

1. replacement anti-rust oil
Displacement type rust preventive oil generally uses sulfonate with strong adsorption as the main rust inhibitor, which can replace the moisture and sweat adhered to the metal surface to prevent rust caused by human sweat, and itself adsorbs on the metal surface and forms a firm protective film. To prevent the intrusion of foreign corrosive media. Therefore, it is used in a large amount for surface pre-treatment before rust prevention and long-term rust prevention. There are also many replacement rust preventive oils that can be used directly to seal against rust. It can be diluted with petroleum solvent such as kerosene or gasoline during use. Therefore, some types of such anti-rust greases are also in the range of solvent-diluted anti-rust oil. When using the solvent, attention should be paid to fire and ventilation.

2. emulsified anti-rust oil
This is an oil containing rust inhibitors and emulsifiers. It is called an emulsified rust preventive oil when it is diluted with water to form an emulsion. It has the characteristics of low cost, safe use, reduced environmental pollution and energy conservation. It is coated on the metal surface, and after the water evaporates, a protective oil film is formed. Currently, it is mostly used for anti-rust between processes, and can also be used for long-term storage. The standard for domestic emulsified anti-rust oil is GB4879-85 B4.

3. sealed anti-rust oil
Sealed anti-rust oil has the characteristics of normal temperature coating, no solvent, thin oil film, anti-rust and long-term storage between processes, good miscibility with lubricating oil, and no need to clean when unsealing.

4. anti-rust lubrication dual-use oil
This is a so-called dual-purpose oil with dual properties of lubrication and rust prevention. It is required to be installed directly after unsealing without removing the sealed oil. Generally, the base oil has low viscosity, high degree of refining, rust inhibitor additive mass fraction of 3%-5%, good low temperature stability, low volatility and good oil film removal, and is suitable for various metals. .


5. anti-rust grease

An ointment made by adding a rust preventive additive to a petroleum wax such as industrial petroleum jelly or paraffin wax or ozoke wax. Generally, it is sealed by the main method of hot coating. It is characterized by oil film thickness (generally about 0.01-0.2mm, even 0.2-1mm), high oil film strength, not easy to lose and volatilize, anti-rust period can be more than 2 years, widely used in long-term storage of mechanical products and large equipment. . The disadvantage is that the oil seal and the sealing need to be heated, and it is required to have good thermal stability and oxidation stability. Widely used in mechanical products for rust prevention, sealing and rust prevention of various metal products and process rust prevention.