A pre-alloyed powder used in a composite binder abrasive tool for grinding hard and brittle materials, a preparation method thereof, and an abrasive tool

A composite binder and pre-alloyed powder technology, used in abrasives, metal processing equipment, manufacturing tools, etc., can solve the problem of high production costs, meet the requirements of high efficiency and high quality, reduce production costs, and long life.

Active Publication Date: 2021-04-23
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dressing of the self-sharpening diamond grinding wheel takes a short time, but the synthesis of the abrasive block needs to be carried out under high temperature and high pressure, and the production cost is relatively high

Method used

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  • A pre-alloyed powder used in a composite binder abrasive tool for grinding hard and brittle materials, a preparation method thereof, and an abrasive tool
  • A pre-alloyed powder used in a composite binder abrasive tool for grinding hard and brittle materials, a preparation method thereof, and an abrasive tool

Examples

Experimental program
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Effect test

preparation example Construction

[0028] The preparation method of the pre-alloyed powder used in the composite binder abrasive tool for grinding hard and brittle materials of the present invention comprises the following steps: 1) Bronze powder, Sn powder, multi-element pre-alloyed powder, Ti powder and MoS 2 Mixing and ball milling for 3-20 hours to obtain mixed powder; 2) performing heat treatment on the mixed powder, and then cooling to obtain the final product; the heat treatment is to keep warm at a temperature of 300-600° C. for 0.5-8 hours.

[0029] The multi-component pre-alloyed powder in step (1) is composed of at least one of Co, Ni, Cu, Sn, Zn and Fe. The volume percentage of Fe is 50-99%.

[0030] The average particle diameter of the Ti powder and the average particle diameter of the multi-element pre-alloyed powder in the step (1) are both 0.5-3 mm.

[0031] Preferably, the mass ratio of ball to material during ball milling is (1-8):1. Further preferably, the mass ratio of ball to material dur...

Embodiment 1

[0036] The pre-alloyed powder of the present embodiment is made of the following raw materials in parts by volume: 42.2 parts of bronze powder, 20 parts of Sn powder, 18 parts of multi-component pre-alloyed powder, 16 parts of Ti powder, 3.8 parts MoS 2 pink.

[0037]Wherein the mass percentage of Cu in the bronze powder is 90%, the mass percentage of Sn is 10%; The particle content is 20%, the particle size of the multi-component pre-alloyed powder is 0.5 μm; the particle size of the Ti powder is 3 μm; the particle size of the MoS 2 The particle size of the powder is 9 μm, which is 3 times of the particle size of the Ti powder, and its volume fraction is 11.2% of the sum of the volume fraction of the multi-component pre-alloyed powder and the Ti powder.

Embodiment 2

[0039] The pre-alloyed powder of the present embodiment is made of the following raw materials in parts by volume: 72.8 parts of bronze powder, 5 parts of Sn powder, 10 parts of multi-component pre-alloyed powder, 10 parts of Ti powder, 2.2 parts MoS 2 pink.

[0040] Wherein the mass percentage of Cu in the bronze powder is 65%, the mass percentage of Sn is 35%; The particle content is 40%, the particle size of the multi-element pre-alloyed powder is 3 μm; the particle size of Ti powder is 2 μm; the particle size of MoS 2 The particle size of the powder is 27 μm, which is 9 times of the particle size of the multi-component pre-alloyed powder, and its volume fraction is 11% of the sum of the volume fractions of the multi-component pre-alloyed powder and Ti powder.

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Abstract

The invention belongs to the technical field of abrasive tool bonds, and in particular relates to a prealloyed powder used in a composite bond abrasive tool for grinding hard and brittle materials, a preparation method thereof, and an abrasive tool. The pre-alloyed powder used in the composite bond abrasive tool for grinding hard and brittle materials of the present invention is made of MoS 2 powder and the following raw materials by volume: 40-75 parts of bronze powder, 5-45 parts of Sn powder, 1-20 parts of multi-component pre-alloyed powder, 1-20 parts of Ti powder; the MoS 2 The volume fraction of the powder is 8% to 20% of the sum of the volume fractions of the multi-component pre-alloyed powder and Ti powder; the multi-component pre-alloyed powder is composed of at least one of Co, Ni, Cu, Sn, Zn and Fe . When the pre-alloyed powder of the present invention is used as a bonding agent for abrasive tools, it helps to improve the sharpness and shape retention of the abrasive tools.

Description

technical field [0001] The invention belongs to the technical field of abrasive tool bonds, and in particular relates to a pre-alloyed powder used in a composite bond abrasive tool for grinding hard and brittle materials, a preparation method thereof, and an abrasive tool. Background technique [0002] Photovoltaic industry, semiconductor industry, and electronics industry formed by the application and development of hard and brittle materials such as silicon and silicon carbide are several types of industries that have exploded after the IT industry in the world. With the development of these types of industries, the demand and production capacity of hard and brittle materials are also showing an increasing trend year by year. Correspondingly, the production and processing of hard and brittle materials has become the most important link in the upstream industry chain of photovoltaic, semiconductor and electronics industries. [0003] The processing of hard and brittle mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F9/04C22C9/02C22C30/02C22C30/04C22C30/06C22C32/00B24D3/06B24D3/34
CPCB22F1/0003B22F9/04C22C9/02C22C30/02C22C30/04C22C30/06C22C32/0089B24D3/06B24D3/342B22F2009/043B22F1/142
Inventor 左冬华张高亮赵延军曹剑锋钱灌文王礼华
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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