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A kind of diamond resin grinding wheel and preparation method thereof

A resin grinding wheel and diamond technology, used in metal processing equipment, manufacturing tools, grinding/polishing equipment, etc., can solve the problems of poor grinding precision workpiece surface roughness, short service life, uneven mixing, etc. Low noise, long service life, and the effect of reducing oxygen concentration

Active Publication Date: 2020-09-25
ADVANCED TECHNOLOGY & MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the diamond resin grinding wheels in the above two applications all have problems such as uneven mixing, diamond segregation, short service life, poor grinding accuracy and workpiece surface roughness to varying degrees.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0060] The preparation method of the diamond resin emery wheel that is not provided with transition layer comprises the steps:

[0061] Step 1. Mold and matrix processing: Design and process the hot-pressed steel mold and matrix according to the shape and size of the pre-prepared grinding wheel.

[0062] Step 2. Powder reduction: reduce the required metal powder to obtain the reduced metal powder; the reducing agent used in the reduction treatment is hydrogen, and the temperature is 300-750°C. For example: Cu powder is 320°C, Ni powder , Co powder is used at 380°C, Fe powder is used at 720°C, and the reduction treatment time is not less than 30min.

[0063] This reduction treatment is to reduce the concentration of oxygen element that may exist in the metal powder, so as to ensure the high purity of the metal powder and better performance of the grinding wheel.

[0064]Step 3. Preparation of working layer powder: Weigh the resin powder, reduced metal powder, metal oxide powde...

Embodiment 1

[0078] This embodiment is a diamond resin grinding wheel without a transition layer and a preparation method thereof.

[0079] The diamond resin emery wheel of the present embodiment comprises the raw material of following weight ratio:

[0080] Working layer: phenolic resin powder 62, Cu powder 47, ZnO powder 17, Cr 2 o 3 Powder 13, graphite powder 6, BC powder 10;

[0081] Wetting agent: triethanolamine 3;

[0082] It also includes: diamond powder accounting for 15% by weight of the working layer, with a particle size of 180 mesh.

[0083] The base material of this embodiment is aluminum.

[0084] The preparation method of the diamond resin grinding wheel of the present embodiment may further comprise the steps:

[0085] (1) Mold and substrate processing: Design and process the hot-pressed steel mold and substrate according to the grinding wheel specification 1A1 350x25x127x10; wherein, the peripheral surface of the substrate is knurled.

[0086] (2) Powder reduction: ...

Embodiment 2

[0094] This embodiment is a diamond resin grinding wheel including a transition layer and a preparation method thereof.

[0095] The diamond resin emery wheel of the present embodiment comprises the raw material of following weight ratio:

[0096] Working layer: polyimide resin powder 48, CuSn10 powder 50, CaO powder 28, Fe 2 o 3 Powder 16, MoS 2 Powder 12, SiC powder 8;

[0097] Wetting agent for the working layer: phenolic resin solution 3;

[0098] It also includes: copper-coated diamond powder accounting for 25% by weight of the working layer, with a particle size of 120 mesh;

[0099] Transition layer: polyimide resin powder 40, Cu powder 74, CaO powder 25, Fe 2 o 3 powder 20;

[0100] Wetting agent for the transition layer: phenolic resin liquid 3.

[0101] The base material of this embodiment is steel.

[0102] The preparation method of the diamond resin grinding wheel of the present embodiment may further comprise the steps:

[0103] (1) Mold and substrate pr...

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Abstract

The invention belongs to the field of preparation of grinding and polishing tools and provides a diamond resin grinding wheel and a preparation method thereof. The diamond resin grinding wheel comprises a working layer and a substrate and can comprise a transition layer. The raw materials of the diamond resin grinding wheel comprise resin powder, metal powder, metal oxide powder, non-metallic powder and diamonds. By selecting the reasonable ratio of resin raw materials, raw materials of a working layer binding agent and diamond grinding materials, the obtained resin grinding wheel has the characteristics of being small in grinding resistance, low in grinding noise, long in service life, high in grinding precision, good in workpiece surface smoothness and the like through hot pressing treatment, subsequent finish machining treatment and the synergistic effect of various factors.

Description

technical field [0001] The invention belongs to the field of preparation of grinding and polishing tools, and in particular relates to a diamond resin grinding wheel and a preparation method thereof. Background technique [0002] Usually, diamond resin grinding wheels are used for grinding and polishing the outer surface, inner hole and plane of hard and brittle non-metallic materials or non-ferrous metal materials, and can also be cut under certain conditions. The minimum diameter of the grinding wheel is 1mm, and the maximum is 700mm or even larger; the minimum thickness of the grinding wheel is 0.5mm, and the maximum is 250mm or even larger. It is usually installed on cylindrical grinders, surface grinders and tool grinders for precision grinding of the surface of the processed material. [0003] Diamond resin grinding wheels have a wide range of applications, and can process a variety of materials, such as hard alloys, magnetic materials, semiconductor materials, high-s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/32B24D3/34B24D18/00C09J161/06C09J179/08C09J11/04
Inventor 叶宗春刘伟刘一波葛科
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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