Brightening rust removing agent

Abstract

The invention relates to a material for removing rust on steel surfaces, in particular to a brightening and rust removing agent. The invention solves the problems in the prior art that the surface of the steel is dark after derusting by the derusting agent. It is composed of the following substances by weight, hydrochloric acid 30-50%, hexamethylenetetramine 1-5%, sodium lauryl sulfate 2-8%, Pingping plus OS-15 5-10%, and the rest water. It has the characteristics of rapid derusting at room temperature, brighter than before after derusting, no over-corrosion and hydrogen embrittlement, no pollution, and low cost. The rust removal time is generally within 1-5 minutes depending on the degree of corrosion.

Description

technical field [0001] The invention relates to a material for removing rust on steel surfaces, in particular to a brightening and rust removing agent. Background technique [0002] Iron and steel products are easily corroded in the atmospheric environment. The amount of steel lost due to corrosion every year in the world is very large. In order to solve or reduce the corrosion of steel products, various anti-corrosion measures are often adopted. One anti-corrosion measure is to cover the steel surface with a protective layer To isolate the direct contact of air and steel. Iron and steel products must remove the rust on the surface before covering the protective layer. The current rust removal methods mainly include mechanical methods and chemical methods. Mechanical methods such as manual shoveling, grinding, sandblasting, etc. have the disadvantages of high labor intensity, low efficiency, serious dust pollution, and are limited by the shape of components, such as edges, ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a brightening and rust removing agent in order to solve the problems in the prior art that the steel surface is dark after rust removal by the rust remover