HVOF method for mining hydraulic support

A hydraulic support and mining technology, which is applied in metal material coating process, fusion spraying, coating, etc., can solve the problems of complex working conditions of mining hydraulic support and the unsuccessful application of supersonic flame spraying process, etc., to achieve The effect of good wear and corrosion resistance

Inactive Publication Date: 2020-07-07
CHINA COAL BEIJING COAL MINING MACHINERY
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Problems solved by technology

[0008] Due to the extremely complicated working conditions of mine hydraulic supports, the supersonic flame spraying process has not been successfully applied in mine hydraulic supports

Method used

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  • HVOF method for mining hydraulic support

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Embodiment Construction

[0014] The embodiments of the present invention will be further described in detail below. The content not described in detail in the embodiments of the present invention belongs to the prior art known to those skilled in the art.

[0015] The present invention is used for the HVOF method on the mine hydraulic support, and its preferred embodiment is as follows figure 1 Shown:

[0016] The surface treatment of mining hydraulic support is carried out by supersonic thermal spraying, and a layer of supersonic thermal spraying coating (HVOF coating) is formed on the surface of hydraulic support.

[0017] The supersonic thermal spray coating includes a tungsten carbide coating.

[0018] The method is used for the surface treatment of the piston rod, the live column, and the outer circle wearing section of the middle cylinder body of the mine hydraulic support.

[0019] The HVOF method used in mine hydraulic supports of the present invention adopts supersonic thermal spraying to ...

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Abstract

The invention discloses an HVOF method for a mining hydraulic support. The surface treatment of the mining hydraulic support is carried out by adopting supersonic thermal spraying, and a supersonic thermal spraying coating is formed on the surface of the hydraulic support. The HVOF method is mainly used for the surface treatment of the outer circle wear sections of a piston rod, a movable column and a middle cylinder body of the mining hydraulic support. The HVOF method has the characteristics of good wear resistance and corrosion resistance, environmental protection and high efficiency of theproduction process, and has high technical economy.

Description

technical field [0001] The invention relates to a surface treatment technology of a mine hydraulic support, in particular to an HVOF method used on a mine hydraulic support. Background technique [0002] The competition of mining hydraulic supports in the entire coal market is intensifying. Winning the trust of users with reliable quality has become the goal pursued by most support companies. Advanced processing technology and excellent product quality have become the core competitiveness of enterprises. Therefore, in order to gain a foothold in the entire coal market, the product quality of hydraulic supports must be guaranteed, and the demand for new technologies to replace electroplating technology is imminent. [0003] Electroplating: The process of plating a thin layer of other metals or alloys on the surface of some metals using the principle of electrolysis. It is a process of attaching a layer of metal film to the surface of metal or other material parts by electrol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/129C23C4/10
CPCC23C4/10C23C4/129
Inventor 毕冲王秀云刘超杨文兵孙金兰隗春月赵立昆陈业兴
Owner CHINA COAL BEIJING COAL MINING MACHINERY
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