Foamed rust remover with brightening function

Abstract

The invention discloses a foamed rust remover with a brightening function. The foamed rust remover consists of the following raw materials in parts by weight: 40-50 parts of phosphoric acid, 12-15 parts of tartaric acid, 5-10 parts of sodium hydrogen carbonate, 5-8 parts of calcium phosphate, 5-10 parts of glycerol, 3-5 parts of aminosulfonic acid, 6-8 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 3-5 parts of cocamidopropyl betaine, 5-6 parts of cobalt chloride hexahydrate, 5-10 parts of tannic acid, 6-8 parts of stearic acid and 5-8 parts of phenylethylamine. The foamed rust remover with the brightening function, disclosed by the invention, is reasonable in component and formula and good in utilization effect, can be used for rapidly removing rust without peculiar smell or irritative gas escape, cannot cause corrosion or hydrogen embrittlement phenomenon to metals, can be used for keeping the surface gloss of a metal matrix, and ensures that the metal surface is more bright.

Description

technical field [0001] The invention relates to the technical field of a rust remover, in particular to a foam bright rust remover for removing rust on metal surfaces. Background technique [0002] At present, iron and steel products are easily corroded in the atmospheric environment, and the world loses a huge amount of steel every year. In order to slow down the corrosion of the surface of steel products, various anti-corrosion measures are often adopted. Before steel products are covered with a protective layer, it is a necessary process step for anti-corrosion. The current rust removal methods mainly include mechanical methods and chemical methods. Mechanical methods include manual shoveling, grinding and sandblasting. The disadvantages are high labor intensity, low efficiency, serious dust pollution, and limited by the shape of components, it is difficult to remove rust. The chemical direction has the advantages of good effect, high efficiency, simple process operati...

AI Technical Summary

Problems solved by technology

[0003] The rust removal method of steel adopts rust remover, usually various acid solutions, hydrochloric acid and sulfuric acid are the most widely used, but sulfuric acid has poor dissolving ability to scale, so it needs to be carried out at a higher temperature, and it is easy to produce hydrogen embrittlement. The surface condition of the post-steel workpiece is not ideal

Using hydrochloric acid pickling process, the speed of removing oxides is faster than sulfuric acid. However, hydrochloric acid is a volatile acid that evaporates quickly. It produces acid mist and seriously pollutes the environment. It is also highly corrosive to steel substrates and will also produce hydrogen embrittlement. Difficult to guarantee product quality