Bare steel rust layer transforming agent for salt-contained environment

Abstract

The invention provides a bare steel rust layer transforming agent for a salt-contained environment. The rust laser transforming agent comprises the following components in percentage by weight: 0.1-3% of titanyl sulfate, 0.5-5% of zinc dihydrogen phosphate, 0.1-3% of sodium pyrophosphate, 0.1-2% of tannic acid, 0.1-3% of copper sulfate, and the balance of water. The rust layer transforming agent has excellent rust liquid sagging prevention; after the rust layer transforming agent is sprayed on the surface of a weather-resistant steel bare sample with removed scales, the formation of a stable rust layer is accelerated; the rust layer is excellent in corrosion resistance; and the rust layer transforming agent is suitable for coating bare steels.

Description

technical field

[0001] The invention belongs to the technical field of metal protection, and specifically refers to a bare steel rust layer conversion agent used in a saline environment. Background technique

[0002] Metal corrosion is a failure process of metals under the action of environmental corrosive media. It is a completely spontaneous and inevitable natural phenomenon, and it is the reverse process of metallurgical production. Atmospheric corrosion is an important cause of early failure and destruction of products, equipment, devices, and structural parts. The annual economic loss caused by atmospheric corrosion is extremely alarming. In the atmospheric natural environment, the formation of a stable protective rust layer on bare steel is a gradual process, which takes a long time, at least 3 years, and some bare steel surfaces form a dense and stable rust layer for more than 10 years. In the process of forming a stable rust layer, the phenomenon of early rust liqu...

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