Tungsten carbide particle enhanced steel/iron-base composite wearable plate and preparation technique thereof

A technology of tungsten carbide particles and iron-based composite materials, which is applied in the field of tungsten carbide particle-reinforced steel/iron-based composite wear-resistant plates and its preparation technology, can solve the problems of unrealizable workpieces, many casting defects, and high requirements, and achieve cost Low cost, low equipment investment, and the effect of improving overall performance

Inactive Publication Date: 2007-11-28
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cast infiltration method must consider how to reserve the hard phase and the parts that need to be strengthened, and use resin binders, resulting in complex processes and more casting defects; vacuum sintering method has higher requirements for vacuum, which cannot be realized f

Method used

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  • Tungsten carbide particle enhanced steel/iron-base composite wearable plate and preparation technique thereof
  • Tungsten carbide particle enhanced steel/iron-base composite wearable plate and preparation technique thereof
  • Tungsten carbide particle enhanced steel/iron-base composite wearable plate and preparation technique thereof

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Experimental program
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Effect test

Embodiment 1

[0033] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0034] Take the preparation of tungsten carbide particles reinforced high manganese steel matrix composite wear-resistant plates with a size of 50×15×1000mm as an example.

[0035] The preparation process steps of the present embodiment are as follows:

[0036] A: To make the sand mold, the sand mold (1) has an external dimension of 70×30×1100mm. In order to ensure the subsequent steps, the size of the middle groove should be slightly larger than the size of the required composite plate: 52×17×1004mm. As shown in Figure 1, brush the cast steel paint and dry it for later use.

[0037] B: The WC powder is mixed and ball milled for 6 hours according to the volume ratio of -2.5~+2mm: 30%; -2~+1mm: 40%; -1~+0.3mm: 30%, and the mixed powder is uniform Cover the bottom of the sand mold groove, and use a vernier caliper to control the thickness of the WC powder layer (2) be...

Embodiment 2

[0041] Take the preparation of tungsten carbide particle reinforced 45# steel matrix composite wear-resistant plate with a size of 70×20×1000mm as an example.

[0042] The preparation process steps of the present embodiment are as follows:

[0043] A: To make the sand mold, the sand mold (1) has an external dimension of 100×40×1100mm. In order to ensure the subsequent steps, the size of the middle groove should be slightly larger than the size of the required composite plate: 72×22×1004mm. As shown in Figure 1, brush the cast steel paint and dry it for later use.

[0044] B: The WC powder is mixed and ball milled for 6 hours according to the volume ratio of -2.5~+2mm: 40%; -2~+1mm: 30%; -1~+0.3mm: 30%, and the mixed powder is uniform Cover the bottom of the sand mold groove, and use a vernier caliper to control the thickness of the WC powder layer (2) between 2 and 3 mm, as shown in Figure 2.

[0045]C: Cut the 45# steel plate (3) with a thickness of 70×19×1000mm, place it o...

Embodiment 3

[0048] Take the preparation of tungsten carbide particles reinforced high chromium cast iron matrix composite wear-resistant plates with a size of 70×20×1000mm as an example.

[0049] The preparation process steps of the present embodiment are as follows:

[0050] A: To make the sand mold, the sand mold (1) has an external dimension of 100×40×1100mm. In order to ensure the subsequent steps, the size of the middle groove should be slightly larger than the size of the required composite plate: 72×22×1004mm. As shown in Figure 1, brush the cast iron paint and dry it for later use.

[0051] B: The WC powder is mixed and ball milled for 6 hours according to the volume ratio of -2.5~+2mm: 35%; -2~+1mm: 40%; -1~+0.3mm: 25%, and the mixed powder is uniform Cover the bottom of the sand mold groove, and use a vernier caliper to control the thickness of the WC powder layer (2) between 2 and 3mm, as shown in Figure 2.

[0052] C: Cut out a 70×19×1000mm thick high-chromium cast iron plat...

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Abstract

The patent is about a kind of steel/iron group complex wear resistant board enhanced by tungsten carbide grain and the preparation technology of it. It is made by the compound of tungsten carbide hard grain and tenacious steel/ iron group. The volume percent of tungsten carbide grain is -2.5-+2mm: 30-40%; -2-+1mm: 30-40%; -1- +0.3mm: 25-30%, the steel/iron groups will infiltrate into the interspace of the tungsten carbide hard grains, after they has been melt, the thickness of the composite layer is 4-5mm. This patent has also published the preparation technology of it, adhesion agent is not need according to this patent, the complex board gained not only owns high rigidity and great flexibility module as cream grain, but also owns the high tenacity of metal, and it greatly improves the shock abrasion resistance ability of the wear resistance board.

Description

technical field [0001] The invention relates to a preparation process of a composite wear-resistant plate, in particular to a preparation process of a tungsten carbide particle-reinforced steel / iron-based composite wear-resistant plate, which is mainly used in metallurgy, mining, electric power, petroleum, building materials, In the manufacture of operating equipment in coal and other industries. Background technique [0002] In the manufacture of operating equipment in metallurgy, mining, electric power, petroleum, building materials, coal and other industries, a large amount of wear-resistant materials are required every year, but often due to the particularity and complexity of the equipment structure. It is impossible to produce the required equipment with the traditional technology, so it has to be tailor-welded in the form of plates. So far, structural parts welded by plates are still the main means of manufacturing equipment, so the demand for plates is huge. Howeve...

Claims

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Application Information

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IPC IPC(8): C22C38/00B22D23/04
Inventor 许云华牛立斌王双成彭建洪
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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