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Wire mesh flexible composite fabric for surface modification and preparation method of wire mesh flexible composite fabric

A wire mesh and surface modification technology, which is applied in the field of wire mesh flexible composite cloth and its preparation, can solve the problems of low bonding strength, thin metal protective coating, etc., improve the preparation formability, improve the welding structure and Improvement of weldability and formability

Inactive Publication Date: 2014-04-16
NANCHANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] The purpose of the present invention is to provide a kind of preparation method of the wire mesh flexible composite cloth that is aimed at the urgently needed protective coating requirements of high temperature, heavy erosion and abrasive parts in mechanical equipment and other industries in view of the deficiencies of the prior art, thereby solving the current problems Some metal protective coatings are thin and have low bonding strength

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The specific formula of the wire mesh flexible composite cloth used for metal surface modification in this embodiment is: tungsten carbide (WC), nickel-chromium alloy powder (Ni 30 Cr 6 ) according to the weight of each substance: 62 parts of tungsten carbide (WC), nickel-chromium alloy powder (Ni 30 Cr 6 ) 29 copies. The total amount of molding agent and binder is 9 parts by weight. The molding agent is composed of the following materials in parts by weight: 3 parts of rubber and 3 parts of stearic acid. The binder is 3 parts by weight of resin.

[0061] The above materials are fully mixed, and granulated by electromagnetic stirring, and a layer of wire mesh is laid on the hopper of the rolling equipment, and then the granulated powder is laid on the wire mesh, and rolled into the rolling equipment. , to obtain a metal mesh flexible composite cloth. Roll forming in rolling equipment to obtain flexible composite cloth of wire mesh.

Embodiment 2

[0063] The specific formula of the wire mesh flexible composite cloth used for metal surface modification in this embodiment is: 62 parts of tungsten carbide (WC), nickel-chromium alloy powder (Ni 30 Cr 6 ) 32 copies. The total amount of molding agent and binder is 6 parts by weight. The molding agent is composed of the following materials in parts by weight: 2 parts of rubber and 2 parts of stearic acid. The binder is 2 parts by weight of resin.

[0064] The above materials are fully mixed, and granulated by electromagnetic stirring, and the 2-layer wire mesh is laid on the hopper of the rolling equipment, and then the granulated powder is laid on the wire mesh, and rolled into the rolling equipment. , to obtain a metal mesh flexible composite cloth. Roll forming in rolling equipment to obtain flexible composite cloth of wire mesh.

Embodiment 3

[0066] The specific formula of the wire mesh flexible composite cloth used for metal surface modification in this embodiment is: 62 parts of tungsten carbide (WC), nickel-chromium alloy powder (Ni 30 Cr 6 ) 35 copies. The total amount of molding agent and binder is 3 parts by weight. The forming agent is composed of the following materials in parts by weight: 2 parts of rubber and 0.5 part of stearic acid. The binder is 0.5 parts by weight of resin.

[0067] The above materials are fully mixed, and granulated by electromagnetic stirring, and 1 to 2 layers of wire mesh are laid on the hopper of the rolling equipment, and then the granulated powder is laid on the wire mesh, and rolled in the rolling equipment. Press molding to obtain a wire mesh flexible composite cloth. Roll forming in rolling equipment to obtain flexible composite cloth of wire mesh.

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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Abstract

The invention relates to a wire mesh flexible composite fabric for surface modification and a preparation method of the wire mesh flexible composite fabric. The wire mesh flexible composite fabric comprises wolfram carbide (WC) or WC-cobalt (Co), mechanically alloyed nickel-chromium alloy powder, a forming agent and a binding agent. The wire mesh flexible composite fabric for surface modification is made through roll forming. By adopting a mechanical alloying technology, a nanocrystalline technology and a wire mesh technology, the preparation forming property of the flexible fabric is greatly improved, the thickness of the flexible fabric is extremely controlled, and the design idea of gradient coatings of more than two layers can be realized, so that the stress is reduced and the welding texture and the welding property are improved. The WC coating with excellent performance is prepared.

Description

technical field [0001] The invention relates to a wire mesh flexible composite cloth specially used for preparing high-temperature and corrosion-resistant coatings and a preparation method thereof. It can be used for the protection of mechanical parts in power stations, petroleum, aviation, food, plastics and other fields. 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] Traditional surface coatings such as pre-clad coatings, wear-resistant coatings, spray welding, surfacing, thermal spray coatings, etc. still have serious deficiencies and disadvantages in terms of wear resistance, heat transfer and operation requirements, and can only provide ...

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C47/14C22C47/06C22C49/02C22C49/14C22C111/00C22C121/00
Inventor 晏建武张晨曙
Owner NANCHANG INST OF TECH
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