Efficient metal rust remover

Abstract

The invention relates to an efficient metal rust remover. The efficient metal rust remover is characterized by being composed of, by weight, 45-60 parts of hydrochloric acid, 4-5 parts of phosphoric acid, 0.4-0.6 part of hexamine, 0.4-0.6 part of lauryl sodium sulfate, 0.15-0.4 part of triethanolamine, 0.4-0.6 part of citric acid, 0.5-1.2 parts of oleic acid, 0.8-1.6 parts of oxalic acid, 3-6 parts of urotropin, 6-10 parts of fatty alcohol-polyoxyethylene ether, and 20-70 parts of water. The efficient metal rust remover is capable of removing rust efficiently and rapidly, does not burn or explode, is not volatile, and is low in substrate corrosion and price and convenient to use.

Description

Technical field [0001] The invention relates to a rust remover, specifically a high-efficiency metal rust remover. Background technique [0002] With the development of the steel industry and steel manufacturing industry, the problem of steel corrosion has become increasingly prominent. The weight of metal materials and equipment scrapped due to corrosion each year in the world is about 20%-30% of the annual metal output, up to 1×10 8 t above. Before taking various anti-corrosion measures on metal products, rust removal is a necessary process step. The current rust removal methods mainly include mechanical methods and chemical methods. The mechanical method is processed by manual shoveling, grinding and sandblasting. The disadvantages are high labor intensity, low efficiency, serious dust pollution, and limited by the shape of the components, it is difficult to remove the rust on the edges, corners, concave corners and the inner diameter of the thin tube. The chemical method h...

AI Technical Summary

Problems solved by technology

Therefore, the current chemical method is difficult to apply in industries with high requirements, especially shipbuilding and other industries that derust large workpieces.