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Wear-resistant anticorrosive coating and preparation method thereof

A kind of anti-corrosion coating and coating technology, applied in the direction of coating, metal material coating process, fusion spraying, etc., can solve the problems of low production efficiency, environmental pollution, etc., and achieve the improvement of hardness, uniform and dense coating structure, good The effect of resistance to various corrosive media

Inactive Publication Date: 2021-04-09
中机凯博表面技术江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, hard chrome plating surface treatment, anti-corrosion coating and other methods are commonly used to improve corrosion and wear resistance, but the above two methods will cause environmental pollution problems and low production efficiency

Method used

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  • Wear-resistant anticorrosive coating and preparation method thereof
  • Wear-resistant anticorrosive coating and preparation method thereof
  • Wear-resistant anticorrosive coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A wear-resistant and anti-corrosion coating, comprising the following raw materials in weight percentage: 56% nickel, 10% chromium, 12% molybdenum, 12% tungsten, 3% niobium, 6% copper, and 1% boron;

[0033] The preparation method of wear-resistant and anti-corrosion coating is as follows:

[0034] (1) Mix the nickel, chromium, molybdenum, tungsten, niobium, copper, and boron raw material powders of the above formula and use water atomization to make spherical alloy powder with a particle size of 30 μm to 50 μm and a bulk density of about 4.5g / cm 3 ,stand-by;

[0035] (2) Clean the stainless steel base material to be processed by ultrasonic cleaning with acetone and dry it at 80°C, and then perform sandblasting treatment on the surface of the base material. The sandblasting treatment uses compressed air as the power and utilizes high-speed sand flow The impact effect of the substrate is used to roughen the surface of the substrate. The sandblasting material is alumina ...

Embodiment 2

[0037] A wear-resistant and anti-corrosion coating, comprising the following raw materials in weight percentage: 55% nickel, 25% chromium, 6.3% molybdenum, 9.3% tungsten, 1% niobium, 3.2% copper, and 0.2% boron;

[0038]The preparation method of wear-resistant and anti-corrosion coating is as follows:

[0039] (1) Mix the nickel, chromium, molybdenum, tungsten, niobium, copper, and boron raw material powders of the above formula and use water atomization to make spherical alloy powder with a particle size of 30 μm to 50 μm and a bulk density of about 4.5g / cm 3 ,stand-by;

[0040] (2) The stainless steel substrate to be processed is manually wiped clean with alcohol and dried at 50° C., and then the surface of the substrate is subjected to sandblasting treatment. The sandblasting treatment uses compressed air as power and utilizes high-speed sand flow The impact effect of the substrate is used to roughen the surface of the substrate. The sandblasting material is alumina sand, ...

Embodiment 3

[0042] A wear-resistant and anti-corrosion coating, comprising the following raw materials in weight percentage: 52% nickel, 22% chromium, 9.5% molybdenum, 10.5% tungsten, 2% niobium, 3.3% copper, and 0.7% boron;

[0043] The preparation method of wear-resistant and anti-corrosion coating is as follows:

[0044] (1) Mix the nickel, chromium, molybdenum, tungsten, niobium, copper, and boron raw material powders of the above formula and use water atomization to make spherical alloy powder with a particle size of 30 μm to 50 μm and a bulk density of about 4.5g / cm 3 ,stand-by;

[0045] (2) Clean the stainless steel base material to be processed by ultrasonic cleaning with acetone and dry it at 80°C, and then perform sandblasting treatment on the surface of the base material. The sandblasting treatment uses compressed air as the power and utilizes high-speed sand flow The impact effect of the substrate is used to roughen the surface of the substrate. The sandblasting material is a...

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Abstract

The invention discloses a wear-resistant anticorrosive coating and preparation method thereof. The preparation method comprises the following steps of (1) mixing 45%-65% of nickel, 10%-25% of chromium, 7%-20% of molybdenum, 4%-12% of tungsten, 1%-3% of niobium, 0%-6% of copper and 0%-1% of boron in proportion to prepare alloy powder for later use; and (2) a to-be-machined base material is cleaned and dried, then the surface of the base material is subjected to roughening treatment, then the alloy powder is sprayed to the surface of the base material through hypersonic flame spraying, and the abrasion-resistant and corrosion-resistant coating is prepared. The microcosmic Vickers hardness value of the coating is 450-800 HV300, the bonding strength of the coating and a base material reaches 80 MPa or above, the toughness is good, the coating has good performance of resisting various corrosion media and abrasion resistance, and the good use state of the metal base material in the marine environment can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of surface modification of metal substrates, in particular to a wear-resistant and anti-corrosion coating and a preparation method thereof. Background technique [0002] The corrosion of metals is very common. The chemical or electrochemical interaction between metals and their environment is dominated by the characteristics of materials and environmental characteristics. Under the action of the surrounding environment, the state of metal elements is gradually transformed into the state of metal ions or compounds. Thereby changing the properties of the metal. Corrosion not only causes waste of materials, but also causes accidents, environmental pollution and casualties more seriously. Therefore, the research on corrosion and protection is the basic subject of coastal industry development, marine resource development and environmental protection. In addition, common marine equipment in the marine environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/129C22C19/05C22C30/02C23C4/067
CPCC23C4/129C23C4/067C22C19/055C22C30/02
Inventor 徐世霖冯二彬冯健陈松荣震
Owner 中机凯博表面技术江苏有限公司
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