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Construction technology for spraying wear resistant coating

A technology of wear-resistant coating and construction technology, which is applied in the direction of metal material coating technology, coating, fusion spraying, etc., can solve the problems of thin coating surface, limited wear resistance, easy to be damaged, etc., and achieve excellent durability High grinding performance and high efficiency

Inactive Publication Date: 2019-03-29
徐州特普勒金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the existing plasma spraying method, the coating surface is thinner, easily damaged, and has limited wear resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A construction technique for spraying wear-resistant coatings, specifically comprising the following steps:

[0016] (1) Pretreatment of the surface of metal fittings, including dust removal, rust removal, and degreasing;

[0017] (2) Surface defects of grinding parts;

[0018] (3) Abrasive the surface of the accessories to meet the roughness required by the coating;

[0019] (4) Use a spray gun to spray special wear-resistant alloy powder on the surface of the accessories as a whole. The spray distance of the spray gun is 270mm, the spray angle is 45°, and the air source pressure of the spray gun is 0.6MPa;

[0020] (5) Heat the metal fittings to remelt the wear-resistant coating. The remelting temperature is 900°C and the time is 180s;

[0021] (6) Use abrasive belts to polish metal fittings.

Embodiment 2

[0023] A construction technique for spraying wear-resistant coatings, specifically comprising the following steps:

[0024] (1) Pretreatment of the surface of metal fittings, including dust removal, rust removal, and degreasing;

[0025] (2) Surface defects of grinding parts;

[0026] (3) Abrasive the surface of the accessories to meet the roughness required by the coating;

[0027] (4) Use a spray gun to spray special wear-resistant alloy powder on the surface of the accessories as a whole. The spray distance of the spray gun is 300mm, the spray angle is 60°, and the air source pressure of the spray gun is 0.8MPa;

[0028] (5) Heat the metal fittings to remelt the wear-resistant coating. The remelting temperature is 950°C and the time is 240s;

[0029] (6) Use abrasive belts to polish metal fittings.

Embodiment 3

[0031] A construction technique for spraying wear-resistant coatings, specifically comprising the following steps:

[0032] (1) Pretreatment of the surface of metal fittings, including dust removal, rust removal, and degreasing;

[0033] (2) Surface defects of grinding parts;

[0034] (3) Abrasive the surface of the accessories to meet the roughness required by the coating;

[0035] (4) Use a spray gun to spray special wear-resistant alloy powder on the surface of the accessories as a whole. The spray distance of the spray gun is 285mm, the spray angle is 50°, and the air source pressure of the spray gun is 0.7MPa;

[0036] (5) Heat the metal fittings to remelt the wear-resistant coating. The remelting temperature is 925°C and the time is 210s;

[0037] (6) Use abrasive belts to polish metal fittings.

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PUM

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Abstract

The invention discloses a construction technology for spraying a wear resistant coating. The construction technology specifically comprises the following steps of (1) pretreating surfaces of metal fittings; (2) polishing surface defects of the fittings; (3) performing material grinding on the surfaces of the fittings, so as to achieve roughness required by a coating; (4) integrally spraying special type wear resistant alloy powder on the surfaces of the fitting with a spray gun; (5) heating the metal fittings, so that the wear resistant coating is remelted; and (6) performing polishing treatment on the metal fittings with an abrasive belt. Compared with the prior art, the construction technology disclosed by the invention adopts a manner of hot spraying of the wear resistant coating, the wear resistant coating has excellent wear resistance, and the construction technology is suitable for large-scale construction and high in efficiency.

Description

technical field [0001] The invention relates to the technical field of a material coating process, in particular to a construction process for spraying wear-resistant coatings. Background technique [0002] At present, the metal parts used in some special industries require wear resistance and corrosion resistance. In order to reduce the wear caused by the erosion of materials on the equipment, many factories coat a layer of wear-resistant material on the surface of the equipment parts to protect the base material of the equipment parts. Compared with the existing plasma spraying method, the coating surface is thinner, easily damaged, and has limited wear resistance. Contents of the invention [0003] In order to solve the above problems, the present invention provides a construction process for spraying wear-resistant coatings, which specifically includes the following steps: [0004] (1) Pre-treat the surface of metal fittings; [0005] (2) Surface defects of grinding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/18C23C4/134C23C4/06C23C4/02
CPCC23C4/18C23C4/02C23C4/06C23C4/134
Inventor 梁建龙
Owner 徐州特普勒金属科技有限公司
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