Wide temperature phosphating solution for oil removal, rust removal and passivation

Abstract

The invention discloses a wide temperature phosphating solution for oil removal, rust removal and passivation. The solution is characterized in that the solution is composed of the following raw materials: 20-25 parts of phosphoric acid, 4-5 parts of nicotinic acid, 10-12 parts of trichloroacetic acid, 2-3 parts of silicon nitride, 2-5 parts of calcium sulfate, 1-3 parts of titanium dioxide, 1-2 parts of hexadecyldimethylamine, 1-2 parts of diethylene glycol monobutyl ether, 1-3 parts of alcohol ether carboxylate, 3-5 parts of sodium alcohol ether sulfate, 3-5 parts of polyvinyl alcohol, 2-4 parts of magnesium hydroxide, 2-5 parts of carboxylic acid, 2-4 parts of magnesium carbonate, and 25-30 parts of purified water. The wide temperature phosphating solution for oil removal, rust removaland passivation has the advantages of wide use temperature range, long rust prevention time, smooth surface of a processed workpiece, tough and dense a phosphate film and no frosting, and is a wide temperature phosphating solution for oil removal, rust removal and passivation which can complete oil removal, rust removal, phosphating, passivation and other processes at one time.

Description

technical field [0001] The invention relates to the technical field of a reaction liquid for surface treatment of metal materials, in particular to a wide-temperature phosphating liquid for degreasing, derusting, passivation. Background technique [0002] At present, the existing phosphating solution has a narrow service temperature range, a short anti-rust time, and various degrees of frosting, and the use effect is not ideal. Contents of the invention [0003] The purpose of the present invention is in order to overcome the shortcoming of above-mentioned prior art, provide a kind of wide temperature phosphating liquid of degreasing, derusting, passivating, the use temperature range of this degreasing, derusting, passivating wide temperature phosphating liquid is wide, antirust time Long, the surface of the treated workpiece is smooth, the phosphating film is tough and dense, and there is no frosting phenomenon. It is a wide temperature phosphating solution for degreasing...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing phosphating solution has a narrow service temperature range, a short anti-rust time, and there are different degrees of frosting, and the use effect is not ideal.