Enzyme containing rust remover

Abstract

The invention relates to an enzyme-containing rust remover, which is characterized in that it consists of the following components in parts by weight: 10-40 parts of inorganic acid, 5-20 parts of organic acid, 1-6 parts of complexing agent, and penetration enhancer 2‑5 parts, corrosion inhibitor 2‑10 parts, surfactant 0.1‑0.5 parts, enzyme lotion 5‑15 parts, water 12‑65 parts. The beneficial effect of the present invention is: overcome the shortcoming that existing chemical derusting agent exists, its technical index reaches international standard, is suitable for the derusting treatment of various iron and steel products; It will drive the development of ship and automobile repair industry, and the consumption of rust remover will increase greatly.

Description

technical field [0001] The invention relates to a rust remover, in particular to an enzyme-containing 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 every year in the world is about 20%-30% of the annual output of metal, 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 manual knocking, grinding and sandblasting. The disadvantages are high labor intensity, low efficiency, serious dust pollution, and limited by the shape of the component, it is difficult to clean the rust on the edges, corners, concave corners and the inner diameter of the thin tube. The chemical method has a ...

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.