Method for preparing tungsten carbide abrasion resistant composite coating by penetration brazing method

A composite coating, tungsten carbide technology, used in welding equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of low bonding strength and thin metal protective coating thickness, restore mechanical properties, reduce the number of shutdowns for maintenance, Good thermal conductivity and anti-corrosion effect
CN101637838BActive Publication Date: 2011-10-19JIANGXI HENGDA HI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGXI HENGDA HI TECH CO LTD
Publication Date
2011-10-19
Patent Text Reader

Abstract

The invention relates to a method for preparing tungsten carbide abrasion resistant composite coating by a penetration brazing method, belonging to the field of coating preparation in materials processing engineering. The invention comprises the following steps: (1) pasting coating metal powder cloth containing tungsten carbide-cobalt (WC-Co), nickle (Ni) and chromium (Cr) mixed powder on a metalsubstrate by using epoxy resin bonding agent; (2) preparing welding material metal powder cloth from BNi-2 brazing material and pasting the welding material metal powder cloth on the coating metal powder cloth obtained in the step (1); and (3) carrying out penetration brazing in a vacuum furnace to form a metallurgical bonded interface. The tungsten carbide abrasion resistant composite coating can be applicable to protection of mechanical elements in the field of generating plant, petroleum, aviation, food, plastics and the like.
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Description

technical field

[0001] The invention relates to a method for preparing a tungsten carbide anti-corrosion composite coating by an infiltration brazing method, and belongs to the field of coating preparation in material processing engineering. Background technique

[0002] Friction, wear and corrosion are the main forms of failure of metal workpieces in various mechanical equipment, and the resulting economic losses caused by increased energy and material consumption are huge. Therefore, research on metal wear and wear-resistant and corrosion-resistant materials has always been Wide attention at home and abroad.

[0003] Many components of mechanical equipment have requirements for anti-wear, anti-corrosion or high temperature resistance. In a sense, the reliability of mechanical equipment depends on the degree of anti-corrosion and anti-wear of its key components. Solving the problems of anti-corrosion and anti-wear How it works plays a decisive role in the safety, reliabili...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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