High self-sharpening resin binder diamond centerless grinding wheel and manufacturing method thereof

A self-sharpening and bonding agent technology, used in metal processing equipment, grinding/polishing equipment, abrasives, etc., can solve the problems of poor self-sharpening and low durability of grinding wheels, and achieve high self-sharpening, high durability, Good toughness

Inactive Publication Date: 2017-07-04
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

[0008] The purpose of the present invention is to solve the problems of poor self-sharpening and low durability of the current grinding wheel, and provide a high self-sharpening resin bond diamond centerless grinding wheel and ...

Method used

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  • High self-sharpening resin binder diamond centerless grinding wheel and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high self-sharpening resin bond diamond centerless grinding wheel, including a substrate and an abrasive layer, the abrasive layer is prepared from the following raw materials in parts by weight: 15-25 parts of resin powder, 10-35 parts of micron-sized boron carbide powder, polycrystalline diamond 45-65 parts of abrasive, 1-5 parts of FeCrAl alloy fiber, 1-2 parts of wetting agent.

[0028] The resin powder is imine resin powder or modified imine resin powder.

[0029] The wetting agent is cresol, polyvinyl alcohol or silane coupling agent.

[0030] The FeCrAl alloy fiber has a diameter of 6-10 μm and a length of 0.5 mm.

[0031] As the preparation method of the above-mentioned high self-sharpening resin bond diamond centerless grinding wheel, the specific steps are as follows:

[0032] (1) Mix resin powder, micron-sized boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and wetting agent in proportion to obtain a molding material;

[0033] ...

Embodiment 2

[0038] A high self-sharpening resin bond diamond centerless grinding wheel, including a substrate and an abrasive layer, the abrasive layer is prepared from the following raw materials in parts by weight: 15 kg of polyimide resin powder, 10 kg of micron-sized boron carbide powder, polycrystalline diamond abrasive 45 kg, FeCrAl alloy fiber 1 kg, cresol 1 kg.

[0039] The FeCrAl alloy fiber has a diameter of 6 μm and a length of 0.5 mm.

[0040] As the preparation method of the above-mentioned high self-sharpening resin bond diamond centerless grinding wheel, the specific steps are as follows:

[0041] (1) Mix polyimide resin powder, micron-sized boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and cresol in proportion to obtain a molding material;

[0042] (2) Put the matrix and the required molding material into the mold, and prepare the grinding wheel blank on the hot press according to a certain molding process. The hot pressing molding temperature...

Embodiment 3

[0047] A high self-sharpening resin bond diamond centerless grinding wheel, including a substrate and an abrasive layer, the abrasive layer is prepared from the following raw materials in parts by weight: 16 kg of bismaleimide resin powder, 12 kg of micron-sized boron carbide powder, polycrystalline Diamond abrasive 47kg, FeCrAl alloy fiber 1.5kg, polyvinyl alcohol 1.1kg.

[0048]The FeCrAl alloy fiber has a diameter of 7 μm and a length of 0.5 mm.

[0049] As the preparation method of the above-mentioned high self-sharpening resin bond diamond centerless grinding wheel, the specific steps are as follows:

[0050] (1) Mix bismaleimide resin powder, micron-sized boron carbide powder, polycrystalline diamond abrasive, FeCrAl alloy fiber and polyvinyl alcohol in proportion to obtain a molding material;

[0051] (2) Put the matrix and the required molding materials into the mold, and prepare the grinding wheel blank on the hot press according to a certain molding process. The hot...

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Abstract

The invention discloses a high self-sharpening resin binder diamond centerless grinding wheel, comprising a basic body and an abrasive layer. The abrasive layer is made by raw materials in the following parts by weight, 15-25 parts of resin powders, 10-35 parts of micron-order boron carbide, 45-65 parts of polycrystalline diamond, 1-5 parts of FeCrAl alloy fibers, and 1-2 parts of a wetting agent. Compared with a conventional resin binder diamond centerless grinding wheel, the high self-sharpening resin binder diamond centerless grinding wheel is advantaged by high self-sharpening, few grinding wheel dressing frequency, and high durability, and working efficiency is improved. In addition, an improved mixing process is high in efficiency and mixing homogeneity is good, and volume production can be realized, and production efficiency is improved. A mixing process comprises respectively performing dry ball milling by using the abrasive and a binder, and filling the wetting agent to mixing in a machine in a three-dimensional manner, so that mixing efficiency and mixing uniformity effect are improved.

Description

technical field [0001] The invention belongs to the technical field of high-efficiency precision grinding, and in particular relates to a high self-sharpening resin bond diamond centerless grinding wheel and a preparation method thereof. Background technique [0002] With the continuous advancement of precision machining technology, the grinding process using diamond grinding wheels has been widely used in the rough grinding and fine grinding processes of various materials. Effective and widely applicable basic technology, which forms the basis for ultra-precision machining of high-precision and high-surface-quality workpieces. Correspondingly, high-performance, high-automation grinding machine equipment has higher and higher performance requirements for grinding tools such as grinding wheels. [0003] As an ideal tool for grinding hard and brittle materials, diamond grinding wheels have been widely used in grinding carbide, ceramics, glass, stone, semiconductor and other m...

Claims

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Application Information

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IPC IPC(8): B24D3/28B24D3/34B24D18/00
CPCB24D3/28B24D3/34B24D3/344B24D18/0009
Inventor 熊华军丁玉龙丁春生赵延军
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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