Rust inhibitor for folding table metal table

When the folding table manufacturers process the metal table legs of the folding table, an essential step is to carry out anti-rust treatment on them. According to relevant persons, the following are mainly used:
1. Water-soluble antirust agent: It can be dissolved in water to form an aqueous solution, and the metal can prevent corrosion and rust after being treated with this aqueous solution. Their antirust effect can be divided into three categories. ①The metal and the antirust agent form an insoluble and dense oxide film, thus preventing the anodic dissolution of the metal or promoting the passivation of the metal, thereby inhibiting the corrosion of the metal. Such antirust agents are also called passivators, such as sodium nitrite, potassium dichromate, etc. When in use, sufficient dosage should be ensured.
2. Oil-soluble antirust agent: also known as oil-soluble corrosion inhibitor. Most are long carbon chain organic compounds with polar groups. The polar groups in the molecule are tightly adsorbed on the metal surface by the action of charge; the non-polar group long carbon chain hydrocarbons are facing the outside of the metal surface, and can be miscible with oil, so that the antirust agent molecules Oriented on the metal surface, forming an adsorptive protective film, so that the metal is not corroded by water and oxygen.
3. Emulsified antirust agent: There are two types, one is the suspension of oil particles in water, that is, oil-in-water emulsion, usually milky white; the other is the suspension of water particles in oil, That is, water-in-oil emulsion, usually transparent or translucent liquid. The emulsified antirust agent not only has antirust performance, but also has lubricating performance and cooling performance, so it is often used as a lubricating coolant for metal cutting.