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Preparing technique of hard silk screen abrasion-proof composite material

A composite material and preparation technology, applied in the direction of layered products, etc., can solve the problems that the wear resistance of composite materials cannot be guaranteed, the full filling of molten metal cannot be guaranteed, and the scope of application is limited, achieving small deformation, good plasticity, and scope of application wide effect

Inactive Publication Date: 2011-03-16
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of a gas carburizing furnace, the temperature is high, the cycle is long, the deformation is large, and the process control is complicated. At the same time, there is no heat preservation device during the pouring process, which cannot guarantee the full filling of the molten metal. The wear resistance of the composite material cannot be guaranteed, and the scope of application is limited.

Method used

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  • Preparing technique of hard silk screen abrasion-proof composite material
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: make the wear-resistant composite material of the hard wire mesh of stainless steel wire nitriding treatment and 45 steel

[0037] Manufacturing process of the present invention is carried out according to the following steps:

[0038] A, select the 1Cr17 stainless steel wire of 0.1mm diameter for use, weave mesh wire pitch 1mm, weave into net (1) with weaving machine;

[0039] B. According to the structure of the working surface of the workpiece, cut the mesh (1) into a suitable shape, superimpose and fix it according to the volume ratio of 30% of the wear-resistant layer;

[0040] C. Put the prepared forming grid (1) into the plasma equipment, set the temperature at 600°C, power on for plasma nitriding, and take it out after 4 hours;

[0041] D. Adopt resin sand, mold according to the casting process, and pre-embed the hard wire mesh (1) in the mold cavity of the sand mold (4) to fix;

[0042] E. Put the sand mold (4) into the medium-frequency inductio...

Embodiment 2

[0047] Embodiment 2: Making the wear-resistant composite material of hard wire mesh and high manganese steel treated by tungsten wire carburizing

[0048] Manufacturing process of the present invention is carried out according to the following steps:

[0049] A. Select tungsten wire with a diameter of 0.2mm, weave the mesh with a distance of 1.5mm, and weave it into a net with a weaving machine (1);

[0050] B. According to the structure of the working surface of the workpiece, the mesh (1) is cut into a suitable shape, superimposed and fixed according to the volume ratio of 40% of the wear-resistant layer;

[0051] C. Put the prepared forming grid (1) into the plasma equipment, set the temperature to 900°C, power on for plasma carburizing, and take it out after 2 hours;

[0052] D. Use sodium silicate sand to shape according to the requirements of the casting process, and pre-embed the hard wire mesh (1) into the cavity of the sand mold (4) to fix it;

[0053] E. Put the sand...

Embodiment 3

[0058] Embodiment 3: making the wear-resistant composite material of hard wire mesh and nodular cast iron treated with titanium wire nitriding

[0059] Manufacturing process of the present invention is carried out according to the following steps:

[0060] A, select the titanium wire of 0.3mm diameter for use, weave net wire pitch 2mm, weave into net with weaving machine (1);

[0061] B. According to the structure of the work surface of the workpiece, the mesh (1) is cut into a suitable shape, superimposed and fixed according to the volume ratio of 45% of the wear-resistant layer;

[0062] C. Put the prepared forming grid (1) into the plasma equipment, set the temperature at 850°C, power on for plasma nitriding, and take it out after 5 hours;

[0063] D. Use resin sand, shape according to the requirements of the casting process, and pre-embed the hard wire mesh (1) into the cavity of the sand mold (4) to fix;

[0064] E. Put the sand mold (4) into the medium frequency induct...

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Abstract

The invention discloses a hard wire mesh wearproof composite material, which is formed by compounding a plasma nitrided or carbonized wire gauze (1) and matrix metal (2). The invention also discloses a process to prepare the hard wire mesh wearproof composite material. When the process is used to prepare the wearproof composite material, the material can be carburized or nitrided at quite low temperature; the composite material is prepared quickly; the carburized or nitrided layer is uniform. In addition, the wire gauze can be fully infiltrated and filled with the matrix metal; the wire gauze and the matrix metal can be compounded reliably under the state of thermal insulation with high performance.

Description

technical field [0001] The invention relates to a preparation process of a wear-resistant composite material, in particular to a preparation process of a metal-based wear-resistant composite material made of a metal wire mesh treated by plasma nitriding or carburizing. Background technique [0002] In modern industrial production, many important mechanical equipment and its mechanical parts are under harsh working conditions, such as high speed, high temperature, high pressure, heavy load, etc. Wear is an important failure form of mechanical equipment. About 80% of machine parts fail due to wear, which eventually leads to frequent replacement and maintenance of workpieces, lower equipment operation efficiency, and consumes a lot of energy and materials, which increases costs and restricts production. develop. Therefore, reducing friction and wear, improving resource utilization, and striving to obtain maximum economic and social benefits with minimum resource consumption ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/24B22D19/16
Inventor 武宏许云华
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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