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How to choose anti-rust agents or rust oil

Number of visits: Date:2015年12月16日 17:44

  Many people in the choice of anti-rust products, found rust and rust preventive oil, at the beginning thought it was a thing called the two fills, thought it was the same thing. But later we found that although both the role of rust, chemical composition is basically the same, but their effect is somewhat different. So when we buy anti-rust product, in the end it is to choose anti-rust agents, anti-rust oil or choose it? Let's come to know about the role of these two principles of anti-rust products. Rust and rust preventive oil on the metal surface are strongly adsorbed film, thereby inhibiting oxygen and water in particular water contact to the metal surface, the metal surface is not exposed to air and water and cause corrosion. Lubrication rust inhibitor is mainly used for industrial lubricants and metalworking coolant, oil, metal protection.


Rust inhibitors and anti-rust oil What are the difference?


  Rust inhibitor, which is a water-based products, also known as liquid rust, rust preventive role played by a number of additives formulated. The advantage is easy to use, economical, easy to clean. Antirust time depending on the rust inhibitor used in a proportion can be achieved by rust in January to a year, the less the proportion of rust on the water better. Rust inhibitor as an additive, must have sufficient metal adsorption and solubility in oil, and therefore anti-rust agent by strong polar groups and proper lipophilic group composition. Currently wider use, the better are the following categories: salt (calcium sulfonate, sodium and barium sulfonate), carboxylic acid and its salts (Dodecencylsuccinic acid, zinc naphthenate , N- oleoyl sarcosine eighteen amine salt), organic phosphates, imidazolinium salts, ester type rust inhibitor (lanolin and lanolin soap, or 80 -60 Secretary benzene, petroleum grease oxidized), a heterocyclic Compound (BTA), organic amines. Water-soluble rust inhibitors are: sodium nitrite (already banned), potassium dichromate, trisodium phosphate, diammonium phosphate, sodium benzoate, triethanolamine and the like. And with respect to the terms of rust inhibitors, rust anti-rust oil time to be longer, higher prices, that the use of a transparent film anti-rust oil drying will be a sense on the surface oil.
 

Rust oil has the following two characteristics:


  1, with a certain degree of viscosity or said adhered metal surface to form a hard or soft the continuous film, so that the air and water isolation to prevent rusting steel and non-ferrous metals.
  2, are the long-term nature of the various anti-rust oil rust-proof, anti-rust period of up to two years - about five years, but when such re-use machinery, at any time can with kerosene or scouring oil will wash off rust film, this It is different from the permanent anti-rust rust use it.
  Selection Method: In view of the above two features, require a relatively short time if the rust-proof, rust inhibitors may be used, if the requirements of the workpiece is easy to clean, you can also choose to use a rust inhibitor. Instead you can choose rust oil, but to pay attention to consider the price.

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