High-hardness compound abrasion-resistant ball

A wear-resistant ball, high-hardness technology, applied in the field of wear-resistant materials, can solve the problems of uneven reduction in the diameter of the grinding ball, large difference in wear resistance, poor abrasive fineness, etc., to achieve a simple structure and improve surface hardness. , the effect of reducing the amount of assembly

Inactive Publication Date: 2015-11-04
ANHUI NINGGUO RUNHUI WEAR RESISTANT MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the constraints of materials and heat treatment processes, the wear resistance of the surface and the core of ordinary grinding balls is quite different, which makes the reduction of the diameter of the grinding balls during the wear process very uneven, so that the gradation of the grinding balls deviates greatly , resulting in poor fineness of the abrasive or a decrease in output

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A high-hardness composite wear-resistant ball proposed by the present invention includes a first hemisphere, a second hemisphere cooperating with the first hemisphere through a stud bolt, and the first hemisphere includes a first alloy hemisphere and is coated on The first cubic boron nitride layer on the curved surface part of the first alloy hemisphere, the second hemisphere includes a second alloy hemisphere and the second cubic boron nitride layer covering the curved surface part of the second alloy hemisphere , the composition of the first alloy hemisphere and the second alloy hemisphere are the same;

[0027] The first hemisphere or the second hemisphere is prepared by the following process:

[0028] S1. Put 140 parts of scrap steel, 140 parts of ferrochrome alloy, 110 parts of pig iron, 10 parts of tungsten ingot, 50 parts of manganese ingot and 2.4 parts of borax into the induction furnace in order by weight. The temperature of the induction furnace is raised to...

Embodiment 2

[0034] A high-hardness composite wear-resistant ball proposed by the present invention includes a first hemisphere and a second hemisphere cooperating with the first hemisphere. The first hemisphere includes a first alloy hemisphere and is coated on the first hemisphere. The first cubic boron nitride layer on the curved surface part of the alloy hemisphere, the second hemisphere includes a second alloy hemisphere and the second cubic boron nitride layer covering the curved surface part of the second alloy hemisphere, the first an alloy hemisphere having the same composition as said second alloy hemisphere;

[0035] The first hemisphere or the second hemisphere is prepared by the following process:

[0036] S1. Put 120 parts of scrap steel, 160 parts of ferrochrome alloy, 90 parts of pig iron, 15 parts of tungsten ingot, 25 parts of manganese ingot and 3.0 parts of borax into the induction furnace in order by weight. The temperature of the induction furnace is raised to 3500 °C. ...

Embodiment 3

[0042] A high-hardness composite wear-resistant ball proposed by the present invention includes a first hemisphere, a second hemisphere cooperating with the first hemisphere through a stud bolt, and the first hemisphere includes a first alloy hemisphere and is coated on The first cubic boron nitride layer on the curved surface part of the first alloy hemisphere, the second hemisphere includes a second alloy hemisphere and the second cubic boron nitride layer covering the curved surface part of the second alloy hemisphere , the composition of the first alloy hemisphere and the second alloy hemisphere are the same;

[0043] The first hemisphere or the second hemisphere is prepared by the following process:

[0044] Preferably, the mass ratio of carbon powder and silicon powder is:.

[0045] S1. Put 135 parts of scrap steel, 145 parts of ferrochrome alloy, 105 parts of pig iron, 11 parts of tungsten ingot, 40 parts of manganese ingot and 2.6 parts of borax into the induction fur...

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PUM

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Abstract

The invention discloses a high-hardness compound abrasion-resistant ball which comprises a first semi-ball and a second semi-ball. A process for preparing the first semi-ball or the second semi-ball comprises sequentially placing 120-140 parts of scrap steel, 140-160 parts of ferrochrome, 90-110 parts of pig iron, 10-15 parts of tungsten ingot, 25-50 parts of manganese ingot and 2.4-3.0 parts of borax in an induction furnace and melting the mixture, adding 40-55 parts of carbon powder and 6-10 parts of silica powder and closing a furnace door to perform vacuumizing to produce liquid alloy; performing pouring and tempering to obtain an alloy semi-ball body; evenly mixing 20-40 parts of silicon dioxide micro powder, 30-35 parts of aluminum oxide micro powder, 80-95 parts of cubic boron nitride and 50-60 parts of resin binder to obtain a mixed material; and pressing the surface to obtain the semi-ball or the second semi-ball. The high-hardness compound abrasion-resistant ball is high in hardness, excellent in abrasion resistance, simple in structure and convenient to assemble, recycle and forge.

Description

technical field [0001] The invention relates to the technical field of wear-resistant materials, in particular to a high-hardness composite wear-resistant ball. Background technique [0002] Grinding ball is a kind of grinding medium, which is the abrasive material with the most serious wear and consumption in the ball mill, and is widely used in metallurgy, cement, mining and other industries. Due to the constraints of materials and heat treatment processes, the wear resistance of the surface and the core of ordinary grinding balls is quite different, which makes the reduction of the diameter of the grinding balls during the wear process very uneven, so that the gradation of the grinding balls deviates greatly , resulting in poor fineness of the abrasive or a decrease in output. In order to ensure the fineness and output of the grinding material, more grinding balls must be added to the ball mill or less grinding balls must be removed. Now there is a need for a wear-resis...

Claims

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Application Information

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IPC IPC(8): B02C17/20C22C33/06B22F1/00
Inventor 于永河
Owner ANHUI NINGGUO RUNHUI WEAR RESISTANT MATERIAL
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