A kind of self-sharpening diamond grinding wheel and preparation method thereof

A diamond grinding wheel and self-sharpening technology, which is applied in metal processing equipment, manufacturing tools, grinding/polishing equipment, etc., can solve the problems of long dressing time and high dressing cost of diamond grinding wheels, and improve self-sharpening and service life. High processing efficiency, solve the effect of long dressing time

Active Publication Date: 2018-08-03
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

[0005] The purpose of the present invention is to provide a self-sharpening diamond grinding wheel, which is free from dressing during use, and fundamentally solves the problems of long dressing time and high dressing cost of diamond grinding wheels

Method used

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  • A kind of self-sharpening diamond grinding wheel and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The self-sharpening diamond grinding wheel of the present embodiment comprises a grinding wheel substrate and an abrasive block, and the abrasive block is made of the following raw materials in mass percentage: Cu 28%, Sn 12%, Co 30%, Al 5%, Fe 3%, Cr 2%, Ti 2%, MoS 2 3%, SG abrasive 2%, diamond 10%, additive 3%.

[0042] Described additive is made from the raw material of following mass percent: Bi 2 o 3 35%, B 2 o 3 35%, ZnO 10%, SiO 2 5%, Al 2 o 3 3%, Na 2 CO 3 2%, Li 2 CO 3 4%, MgCO 3 2%, CaF 2 4%.

[0043] The preparation method of described additive comprises the following steps:

[0044] 1) Take Bi of formula quantity 2 o 3 , B 2 o 3 , ZnO, SiO 2 、Al 2 o 3 、Na 2 CO 3 , Li 2 CO 3 , MgCO 3 After mixing evenly, put it into a quartz crucible, place it in a high-temperature resistance furnace, heat it at 10°C / min to 1250°C and keep it warm for 2 hours to obtain a mixture;

[0045] 2) Cool the mixture obtained in step 1) to 850°C at a ...

Embodiment 2

[0053] The self-sharpening diamond grinding wheel of the present embodiment comprises a grinding wheel substrate and an abrasive block, and the abrasive block is made of the following raw materials in mass percentage: Cu 44%, Sn 10%, Co 25%, Al 3%, Fe 2%, Cr 1%, Ti 3%, MoS 2 1%, SG abrasive 5%, diamond 5%, additive 1%.

[0054] Described additive is made from the raw material of following mass percent: Bi 2 o 3 25%, B 2 o 3 40%, ZnO 5%, SiO 2 2%, Al 2 o 3 8%, Na 2 CO 3 1%, Li 2 CO 3 3%, MgCO 3 5%, CaF 2 1%.

[0055] The preparation method of described additive comprises the following steps:

[0056] 1) Take Bi of formula quantity 2 o 3 , B 2 o 3 , ZnO, SiO 2 、Al 2 o 3 、Na 2 CO 3 , Li 2 CO 3 , MgCO 3 After mixing evenly, put it into a quartz crucible, place it in a high-temperature resistance furnace, heat it at 10°C / min to 1300°C and keep it warm for 1 hour to obtain a mixture;

[0057] 2) Cool the mixture obtained in step 1) to 850°C at a rat...

Embodiment 3

[0065] The self-sharpening diamond grinding wheel of the present embodiment comprises a grinding wheel substrate and an abrasive block, and the abrasive block is made of the following raw materials in mass percentage: Cu 25%, Sn 5%, Co 30%, Al 7%, Fe 1%, Cr 2%, Ti 1%, MoS 2 2%, SG abrasive 6%, diamond 15%, additive 6%.

[0066] Described additive is made from the raw material of following mass percent: Bi 2 o 3 30%, B 2 o 3 25%, ZnO 19%, SiO 2 10%, Al 2 o 3 2%, Na 2 CO 3 5%, Li 2 CO 3 1%, MgCO 3 3%, CaF 2 5%. The preparation method of the additive is the same as in Example 1.

[0067] The preparation method of the self-sharpening diamond grinding wheel of the present embodiment comprises the following steps:

[0068] a) Take Cu powder, Sn powder, Co powder, Al powder, Fe powder, Cr powder, Ti powder, MoS 2 powder, SG abrasive, diamond and additives, put into the three-dimensional mixer and mix for 4 hours to get the mixture;

[0069] b) the mixture obt...

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Abstract

The invention discloses a self-sharpening diamond grinding wheel and a preparation method thereof. The diamond grinding wheel comprises material grinding blocks. Raw materials of the material grinding blocks include a metal bond, MoS2, an SG grinding material, diamond and an additive. The additive accounts for 1%-10% by mass of the raw materials of the material grinding blocks. The additive is prepared from the following raw materials including, by mass, 25%-35% of Bi2O3, 25%-35% of B2O3, 5%-10% of ZnO, 5%-10% of SiO2, 5%-10% of Al2O3, 1%-5% of CaF2, 1%-5% of Na2CO3, 1%-5% of Li2CO3 and 1%-5% of MgCO3. The diamond grinding wheel is high in self-sharpening performance and strength, is exquisite in structure, is uniformly consumed in the grinding process, does not need dressing during using and always maintains good grinding force, and thus the problems of long dressing time and high dressing cost of existing diamond grinding wheels are fundamentally solved.

Description

technical field [0001] The invention belongs to the technical field of superhard material products, in particular to a self-sharpening diamond grinding wheel, and also to a preparation method of the self-sharpening diamond grinding wheel. Background technique [0002] The self-sharpening of the grinding wheel means that after the abrasive grains of the grinding wheel are blunted, the grinding force will also increase, causing the abrasive grains to break or fall off, and the sharp cutting edge will be exposed again. During the grinding process of the grinding wheel made of superhard materials, the abrasive grains of the grinding wheel are under the action of friction and extrusion, and its edges and corners are gradually rounded and blunt. Grinding ability. At this time, slippage will occur between the grinding wheel and the workpiece, which may cause vibration and noise, which will reduce the grinding efficiency and deteriorate the surface roughness. At the same time, due...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/06B24D3/34B24D18/00
CPCB24D3/06B24D3/34B24D3/342B24D18/0009
Inventor 韩欣牛俊凯闫宁邢波
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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