Metal cleaner

Abstract

The invention discloses a metal cleaner, which relates to the field of chemical articles. The compositional ratio of a formula of the metal cleaner is as follows: 16 percent to 20 percent of hydrochloric acid, 2 percent to 4 percent of stabilizer, 1 percent to 2 percent of reducer, 1 percent to 2 percent of synergist, 1 percent to 2 percent of chelator, 1 percent to 2 percent of corrosion inhibitor and 60 percent to 70 percent of water. The metal cleaner has the advantages of good rust removal effect, high speed, low cost, convenience in use, non-ignition, non-explosion, no pollution to the environment, no irritation or damage to human bodies or metal, safety, non-toxicity and no volatilization.

Description

Technical field: [0001] The invention relates to the field of chemicals, in particular to a metal cleaning agent. Background technique: [0002] The rust on the metal surface is a very complex system. Under different oxidation conditions, its composition is very different, and the surface of the metal material must be treated before coating such as electroplating, spraying, and immersion plating, that is, to remove rust. Grease, impurities and rust layers on its surface. There are basically two types of rust removal methods at present, one is a mechanical method, and the other is a chemical method, but the mechanical method cannot completely eliminate the rust because it needs to be scraped with a knife or a metal brush, and requires a lot of labor. [0003] At present, there are many kinds of chemical rust removers for metal materials at home and abroad, and they are all made by directly using derivatives of inorganic acids or ammonia as the main material and adding auxili...

AI Technical Summary

Problems solved by technology

In Chinese Patent No. CN86107238A, a kind of oil and rust remover is disclosed, which consists of aluminum powder, sodium hydroxide, hexamethylenetetramine, polyoxyethylene fatty alcohol ether, ethylene oxide, water, Phosphoric acid is made according to a certain ratio. Although this kind of degreasing agent has high efficiency and short production cycle, but because ethylene oxide is unstable and toxic, the production process is unsafe and the pollution to the environment is serious. In addition, its production cost is high

The patent No. is that CN1004429A also discloses a kind of derusting passivation agent, and its composition is that phosphoric acid, zinc dihydrogen phosphate, oxalic acid, zinc nitrate, polyethylene glycol octyl alkyl ether, water are mixed according to a certain proportion, but Due to the unstable properties of ethers, the storage time of the product is short and it is easy to fail

At the same time, the rust removal effect is not very ideal