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Metallic bond diamond grinding wheel

A diamond grinding wheel and metal bond technology, applied in the field of abrasive tool abrasive grinding, can solve the problems of low efficiency, inability to meet continuous processing, poor self-sharpening, etc., and achieve long service life, good mechanical properties and self-sharpening. , the effect of high holding force

Active Publication Date: 2015-03-11
李勇峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the metal bond diamond grinding wheel has high strength, good geometric shape retention of the working surface, long life and impact resistance, it has poor self-sharpening and low efficiency, which cannot meet the needs of continuous processing

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Metal bond diamond grinding wheel, made of the following raw materials in weight percentage:

[0024]

[0025] The particle size of the above-mentioned diamond powder was 10 μm.

[0026] The particle diameters of the above-mentioned Sn powder, Cu powder, Al powder, and La powder are all 50 μm.

[0027] The preparation steps of metal bond diamond grinding wheel are as follows:

[0028] (1) Mixing: Get diamond powder, Sn powder, Cu powder, Al powder, La powder in the mixer according to the formula, add 1% acrylic acid emulsion of the total weight of raw materials in the mixer and mix for 20 hours to obtain the mixture;

[0029] (2) Molding: Put the mixture into the mold evenly and flatten it, put it into the fixed mold of the hydraulic machine and press it, the temperature is 250°C, the pressure is 120MPa, keep the pressure for 2 hours, and the grinding wheel green body is obtained after cooling out of the mold;

[0030] (3) Sintering: Put the grinding wheel green bo...

Embodiment 2

[0034] Metal bond diamond grinding wheel, made of the following raw materials in weight percentage:

[0035]

[0036] The particle diameter of the above-mentioned diamond powder was 25m.

[0037] The particle diameters of the above-mentioned Sn powder, Cu powder, Al powder, and La powder are all 65 μm.

[0038] The preparation steps of metal bond diamond grinding wheel are as follows:

[0039] (1) Mixing: Get diamond powder, Sn powder, Cu powder, Al powder, La powder in the mixer according to the formula, add 1.15% acrylic acid emulsion of the total weight of raw materials in the mixer and mix for 21 hours to obtain the mixture;

[0040] (2) Forming: Put the mixture into the mold evenly and smoothly, put it into the fixed mold of the hydraulic machine and press it, the temperature is 252°C, the pressure is 121MPa, and the pressure is maintained for 2.5 hours, and the grinding wheel blank is obtained after cooling out of the mold;

[0041] (3) Sintering: Put the grinding w...

Embodiment 3

[0045] Metal bond diamond grinding wheel, made of the following raw materials in weight percentage:

[0046]

[0047]

[0048] The particle size of the above-mentioned diamond powder was 35 μm.

[0049] The particle diameters of the above-mentioned Sn powder, Cu powder, Al powder, and La powder are all 80 μm.

[0050] The preparation steps of metal bond diamond grinding wheel are as follows:

[0051] (1) Mixing: Get diamond powder, Sn powder, Cu powder, Al powder, La powder in the mixer according to the formula, add 1.4% acrylic acid emulsion of the total weight of raw materials in the mixer and mix for 22 hours to obtain the mixture;

[0052] (2) Forming: Put the mixture into the mold gently and evenly and scrape it flat, put it into the fixed mold of the hydraulic press for hot pressing, the temperature is 254°C, the pressure is 122MPa, hold the pressure for 3 hours, and get the grinding wheel green body after cooling and ejecting the mold;

[0053] (3) Sintering: Pu...

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Abstract

The invention discloses a metallic bond diamond grinding wheel, which is made from the following raw materials: 50-60% by weight of diamond powder, 4-11% by weight of Sn powder, 12-18% by weight of Cu powder, 15-25% by weight of Al powder, and 0.5-1.1% by weight of La powder. The metallic bond diamond grinding wheel provided by the invention has the advantages of good mechanical property, good self-sharpening capability, high strength of controlling diamond, good shaping capability and long service life.

Description

technical field [0001] The invention relates to the technical field of abrasive grinding, in particular to a metal-bonded diamond grinding wheel. Background technique [0002] At present, most of the artificially synthesized diamonds are in the form of powder or fine particles. In order to use diamonds for high-precision and high-efficiency grinding, a substance called a binder is usually used to bond the diamond abrasive grains and make them Abrasives with a certain strength and shape are easy to install on various grinding machines for grinding. Compared with other abrasives such as corundum and silicon carbide, diamond grinding wheels have the following advantages: high grinding efficiency; high wear resistance, little consumption of abrasive grains, and high service life, especially in It is most obvious when grinding hard and brittle workpieces; the abrasive grains have high hardness and wear resistance, and the abrasive grains can keep sharp for a long time, and can e...

Claims

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Application Information

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IPC IPC(8): B24D3/10B24D3/34B24D18/00B22F1/00B22F3/16
CPCB22F3/16B24D3/10B24D3/342B24D18/0009
Inventor 杨祝华
Owner 李勇峰