Abrasion-resistant metal pipeline with internal anti-corrosion coating

A wear-resistant pipeline and anti-corrosion coating technology, which is applied in the pipeline field, can solve the problems of anti-corrosion coatings that are difficult to balance water resistance and anti-fouling effects, and achieve the effects of shortening the heat treatment cycle, strong resistance to organic solvents, and low production costs

Inactive Publication Date: 2014-01-29
徐梁冰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, anti-corrosion coatings in the prior art are usually difficult to balance water resistance, anti-fouling effect, and high temperature resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] A metal wear-resistant pipeline with an internal anti-corrosion coating of the present invention comprises a wear-resistant pipeline body and an anti-corrosion coating on the inner wall of the pipeline;

[0041] The wear-resistant pipe body has the following raw materials in chemical composition weight percentage:

[0042] W: 3.2~9.1%, Mo: 2.4~7.6%,

[0043] Cr: 3.8~8.9%, RE: 0.15~0.5%,

[0044] Mn: 0.3~0.5%, Si: 0.05~1.0%,

[0045] B: 0.01-0.02%, Al: 0.2-0.8%,

[0046] Nb: 0.08~2.4%, Ni: 0.1~0.5%;

[0047] Described anticorrosion coating has the raw material of following chemical composition weight ratio:

[0048] The logarithmic reduced viscosity of 15 parts by weight is the thermoplastic polyethersulfone resin of 0.31,

[0049] 8 parts by weight of tetrafluoroethylene-perfluorovinyl ether copolymerized micropowder,

[0050] 4 parts by weight of polyperfluoroethylene propylene micropowder,

[0051] The N-methylpyrrolidone of 25 parts by weight,

[0052] 6 part...

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Abstract

The invention relates to an abrasion-resistant metal pipeline with an internal anti-corrosion coating. An abrasion-resistant pipeline body is manufactured through centrifugal casting, and is also subjected to quenching, high-temperature tempering, solid solution strengthening thermal treatment as well as twice tempering dispersion hardening thermal treatment technology, and finally, an anti-corrosion coating is coated on the inner wall of the pipeline through air spraying. The metal pipeline has high hardness and abrasion-resistant performance; the anti-corrosion coating has excellent waterproofness, antifouling effect as well as high-temperature-resistant performance.

Description

technical field [0001] The invention relates to a pipeline, in particular to a metal wear-resistant pipeline with an internal anti-corrosion coating. Background technique [0002] Corrosion is one of the main reasons for the damage and failure of metal pipelines. There are two main types of environments that cause corrosion of metal materials: one is the natural environment, such as natural atmosphere, ocean, soil and other weak corrosion environments; the other is Industrial environment, such as strong corrosive industrial gases and industrial solutions, etc. In the corrosion in the normal natural environment, the corrosion type belongs to electrochemical corrosion and biochemical corrosion, the effect is weak, the corrosion speed is slow, and the short-term corrosion damage is small, but the potential damage is large; and if the metal is used in a highly corrosive industry For gas, solution environment and sewage discharge, etc., the corrosion type belongs to chemical cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/54C21D9/08C21D1/25C09D181/06C09D127/18C09D127/12C09D5/08
CPCY02P10/20
Inventor 徐梁冰
Owner 徐梁冰
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