Manufacturing method of metal abrasion-proof anti-corrosion anti-rust pipeline

A technology for anti-corrosion, anti-rust, and wear-resistant pipelines, which is applied in anti-corrosion coatings, manufacturing tools, heat treatment equipment, etc. It can solve the problems of anti-corrosion coatings that are difficult to balance water resistance and anti-fouling effects, and achieve shortened heat treatment cycles and strong anti-contamination Ability, the effect of good oleophobic and hydrophobic properties

Active Publication Date: 2015-06-17
JIANGSU JINSHENGYUAN SPECIAL VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] 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 1

[0055] A) Preparation of wear-resistant pipe body

[0056] 1) To obtain materials, select raw materials with the following chemical composition weight percentages:

[0057] C: 1.6%, V: 4.5%,

[0058] W: 9.1%, Mo: 7.6%,

[0059] Cr: 3.8%, RE: 0.15%,

[0060] Mn: 0.7%, Si: 0.05%,

[0061] B: 0.02%, Al: 0.2%,

[0062] Nb: 0.08%, Ni: 0.1%,

[0063] The balance is Fe and trace unavoidable impurities;

[0064] 2) Mix and heat ordinary steel scrap, micro-carbon ferrochrome, ferroniobium, ferronickel, ferrotungsten, ferromolybdenum, ferrochrome and ferromanganese, add carbon with pig iron or graphite, mix and heat to melt into molten steel, and add the molten steel after it is melted Ferrosilicon for pre-deoxidation;

[0065] 3) According to the distribution ratio of raw materials, adjust the composition in front of the furnace and raise the temperature to 1580°C, then add aluminum blocks for final deoxidation, and then leave the furnace;

[0066] 4) Put the rare earth ferrosi...

Embodiment 2

[0089] A) Preparation of wear-resistant pipe body

[0090] 1) To obtain materials, select raw materials with the following chemical composition weight percentages:

[0091] C: 2.7%, V: 6.0%,

[0092] W: 6.9%, Mo: 5.3%,

[0093] Cr: 5.4%, RE: 0.23%,

[0094] Mn: 0.6%, Si: 0.08%,

[0095] B: 0.01%, Al: 0.5%,

[0096] Nb: 1.1%, Ni: 0.2%,

[0097] The balance is Fe and trace unavoidable impurities;

[0098] 2) Mix and heat ordinary steel scrap, micro-carbon ferrochrome, ferroniobium, ferronickel, ferrotungsten, ferromolybdenum, ferrochrome and ferromanganese, add carbon with pig iron or graphite, mix and heat to melt into molten steel, and add the molten steel after it is melted Ferrosilicon for pre-deoxidation;

[0099] 3) According to the distribution ratio of raw materials, adjust the composition in front of the furnace and raise the temperature to 1600°C, then add aluminum blocks for final deoxidation, and then leave the furnace;

[0100] 4) Put the rare earth ferrosil...

Embodiment 3

[0123] A) Preparation of wear-resistant pipe body

[0124] 1) To obtain materials, select raw materials with the following chemical composition weight percentages:

[0125] C: 3.7%, V: 8.5%,

[0126] W: 3.2%, Mo: 2.4%,

[0127] Cr: 8.9%, RE: 0.4%,

[0128] Mn: 0.3%, Si: 1.0%,

[0129] B: 0.01%, Al: 0.8%,

[0130] Nb: 2.4%, Ni: 0.3%,

[0131] The balance is Fe and trace unavoidable impurities;

[0132] 2) Mix and heat ordinary steel scrap, micro-carbon ferrochrome, ferroniobium, ferronickel, ferrotungsten, ferromolybdenum, ferrochrome and ferromanganese, add carbon with pig iron or graphite, mix and heat to melt into molten steel, and add the molten steel after it is melted Ferrosilicon for pre-deoxidation;

[0133] 3) According to the distribution ratio of raw materials, adjust the composition in front of the furnace and raise the temperature to 1630°C, then add aluminum blocks for final deoxidation, and then leave the furnace;

[0134] 4) Put the rare earth ferrosilic...

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Abstract

The invention relates to a manufacturing method of a metal abrasion-proof anti-corrosion anti-rust pipeline. The manufacturing method comprises the following steps of: manufacturing an abrasion-proof pipeline body through centrifugal casting, carrying out quenching, high-temperature tempering, solid-solution strengthening heat treatment and double tempering dispersion hardening heat treatment on the abrasion-proof pipeline body; then coating an anti-rust coating through electrostatic spraying on the outer wall of the pipeline; and finally coating an anti-corrosion coating through air spraying on the inner wall of the pipeline. The metal pipeline disclosed by the invention has the advantages of higher rigidity and abrasion resistant property; and the anti-corrosion coating has the advantages of excellent water resistance and antifouling effect and high temperature resistant property.

Description

technical field [0001] The invention relates to a preparation method of a pipeline, in particular to a preparation method of a metal wear-resistant, anti-corrosion and anti-rust pipeline. Background technique [0002] There are three main forms of material failure: fracture, corrosion, and wear. Although unlike the other two forms, material wear rarely causes catastrophic damage to metal workpieces, but the economic losses it causes are quite staggering. According to statistics, about 75%-80% of the failed mechanical parts are caused by metal wear. About 30%-50% of the energy supplied to the machine is consumed in the process of friction and wear. Parts wear out After that, it will not only affect the use efficiency of machinery and equipment, but also consume a lot of manpower and material resources to replace parts and repair equipment. The economic losses caused by wear and tear are about 120 billion US dollars per year in the United States and about 50 billion marks per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/56C22C38/54C21D9/08C21D1/18C09D181/06C09D127/18C09D127/12C09D7/12C09D5/08
CPCY02P10/20
Inventor 毛春龙毛金根缪小霞陈善俊
Owner JIANGSU JINSHENGYUAN SPECIAL VALVE
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