Corrosion-resisting steel pipe

Abstract

The invention provides a corrosion-resisting steel pipe. The corrosion-resisting steel pipe comprises a pipe body and further comprises a second protection layer and a first protection layer which are arranged on the inner and outer surfaces of the pipe body respectively, wherein the first protection layer is made of a nickel-based or iron-based or cobalt-based alloy powder material; the second protection layer is made of stainless steel. The protection layers arranged on the inner and outer surfaces of the steel pipe have very high corrosion-resisting performance, so that the service life of the steel pipe is prolonged, and furthermore, consumed materials are reduced and the cost is lowered.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to steel pipe anti-corrosion. Background technique [0002] In existing life, with the rapid development of industry, steel pipes have been more and more widely used. Petroleum, mining, and municipal construction all require a large amount of steel pipe building materials, which put forward higher requirements for the processing of steel pipes. In the application process of steel pipes , due to the complex environment in which the steel pipe is located, the medium circulating in the steel pipe contains more corrosive elements, so it will corrode the steel pipe, thereby affecting the service life of the steel pipe, and the corrosion of the inner wall of the steel pipe will also cause iron, sulfur, Phosphorus and other elements will enter the circulation, causing adverse effects on the quality of the circulation. The existing technical solution is to coat the inner and...

AI Technical Summary

Problems solved by technology

[0002] In existing life, with the rapid development of industry, steel pipes have been more and more widely used. Petroleum, mining, and municipal construction all require a large amount of steel pipe building materials, which put forward higher requirements for the processing of steel pipes. In the application process of steel pipes , due to the complex environment in which the steel pipe is located, the medium circulating in the steel pipe contains more corrosive elements, so it will corrode the steel pipe, thereby affecting the service life of the steel pipe, and the corrosion of the inner wall of the steel pipe will also cause iron, sulfur, Phosphorus and other elements will enter the circulation, causing adverse effects on the quality of the circulation. The existing technical solution is to coat the inner and outer surfaces of the steel pipe with epoxy resin coating to increase the corrosion resistance of the steel pipe. The disadvantage of this technical solution is The wear resistance is poor, and the surface of the steel pipe will be damaged during the handling or installation of the steel pipe, which will cause corrosion to the steel pipe

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