Carbon steel precision CNC processing

• The difference between stainless steel material passivation and antirust oil

  Aug 06, 2024

  Some people often ask whether stainless steel will rust, the answer is to rust, stainless steel in a specific environment, the surface will produce corrosion and rust, to prevent stainless steel rust passivation and anti-rust oil, so what is the difference between the two? The reason for stainless steel rust is because the surface of a very thin layer of rich Ming oxide film can protect up, But our daily complex processing process will to a large extent destroy this protective layer and leave iron powder on the surface of the product, Or the iron ions in the free state, And iron ion is one of the important causes of rapid rust, Also because of the harsh environment used by the parts, Stainless steel is much easier to rust, withal, Stainless steel is generally rust-resistant, Passivation is the use of the oxidizing substances in the passivation fluid, Generduce redox reactions with metal, Promote the formation of a very thin bell film on the metal surface, To protect the surface of stainless steel from corrosion, This process is considered as a chemical reaction, The resulting passivation film is dense, The whole is not easily destroyed. And rust oil is the use of oil film to close the metal surface of the air hole, to achieve the purpose of isolation and contact with oxygen, so as to effectively prevent stainless steel cow rust, is a kind of physical reaction worthy of the name, oil film is easier to proceed with the production, and be removed and destroyed, resulting in rust failure.

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