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Processing method of bronze-based diamond grinding wheel

A processing method and technology of grinding wheel, applied in the direction of metal processing equipment, manufacturing tools, abrasives, etc., can solve the problems of high production cost, complicated diamond grinding wheel abrasive process, inconvenient large-scale application, etc., achieve low equipment cost and be conducive to industrialization Production, good quality effect

Inactive Publication Date: 2016-08-10
LIUZHOU KAITONG NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing process of preparing diamond grinding wheel abrasives using metal materials as a binder is relatively complicated and the production cost is high, which is inconvenient for large-scale application in industrial production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Diamond abrasive, bronze powder, silicon carbide powder and sodium bicarbonate powder are mixed and ball milled, and then sieved with a 300-mesh sieve to ensure that the diamond abrasive accounts for 72wt% in the sieved mixture, bronze powder accounts for 17wt%, and silicon carbide powder accounts for 8wt%, sodium bicarbonate powder accounted for 3wt%; then the mixture was placed in a graphite mold and dried at 80°C for 5 minutes, and then placed in a furnace for vacuum sintering. During sintering, the temperature was raised at a heating rate of 4°C / min to 1100°C, then keep it warm for 30 minutes, and then cool with the furnace; after cooling, the mold is unloaded to obtain a bronze-based diamond grinding wheel. Test the grinding wheel to get: the bending strength is 70.6MPa, the hardness is 43HV; w =1000rpm, n s =150rpm, V f =0.002mm / min and pure water grinding fluid, the grinding ratio is 48.

Embodiment 2

[0026] Diamond abrasive, bronze powder, silicon carbide powder and sodium bicarbonate powder are mixed and ball milled, and then sieved with a 300-mesh sieve to ensure that the diamond abrasive accounts for 70wt%, bronze powder accounts for 25wt%, and silicon carbide powder accounts for 4wt%, sodium bicarbonate powder accounts for 1wt%; then put the mixture in a graphite mold and dry it at 80°C for 8min, then put it in a furnace for vacuum sintering, and heat up at a heating rate of 5°C / min during sintering to 1100°C, then keep it warm for 40 minutes, and then cool with the furnace; after cooling, the mold is unloaded to obtain a bronze-based diamond grinding wheel. Test the grinding wheel to get: the bending strength is 86.5MPa, the hardness is 57HV; w =1000rpm, n s =150rpm, V f =0.002mm / min and pure water grinding fluid, the grinding ratio is 59.

Embodiment 3

[0028] Diamond abrasives, bronze powder, silicon carbide powder and sodium bicarbonate powder are mixed and ball milled, and then sieved with a 300-mesh sieve to ensure that diamond abrasives account for 80wt%, bronze powder accounts for 15wt%, and silicon carbide powder accounts for 3wt%, sodium bicarbonate powder accounted for 2wt%; then put the mixture in a graphite mold and dry it at 80°C for 10min, then put it in a furnace for vacuum sintering, and heat up at a heating rate of 7°C / min during sintering to 1000°C, then keep it warm for 50 minutes, and then cool with the furnace; after cooling, the mold is unloaded to obtain a bronze-based diamond grinding wheel. Test the grinding wheel to get: the bending strength is 73.6MPa, the hardness is 46HV; w =1000rpm, n s =150rpm, V f =0.002mm / min and pure water grinding fluid, the grinding ratio is 53.

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Abstract

The invention relates to bronze-based diamond grinding wheels, in particular to a processing method of a bronze-based diamond grinding wheel. The processing method of the bronze-based diamond grinding wheel comprises the steps that diamond abrasives, bronze powder, silicon carbide powder and silicon carbide powder are mixed and subjected to ball milling; then the mixed and ball-milled materials are screened, and a mixture is obtained; the mixture is placed in a mold to be dried; and afterwards, the mold is placed in a furnace to be sintered, demolding is conducted after cooling, and the bronze-based diamond grinding wheel is obtained. According to the processing method of the bronze-based diamond grinding wheel, the bronze is used as a bond, the silicon carbide is used as filler, the silicon carbide plays an assisting role, and the bronze-based diamond grinding wheel is prepared under a vacuum condition. The process flow is short, equipment cost is low, the prepared diamond grinding wheel has better quality compared with diamond grinding wheels prepared through a similar process, and industrial production is facilitated.

Description

technical field [0001] The invention relates to a bronze-based diamond grinding wheel sheet, in particular to a processing method for a bronze-based diamond grinding wheel sheet. Background technique [0002] In recent years, with the advancement of science and technology, people's requirements for production tools are developing in the direction of high efficiency, long life and high economy. In many fields, tools of ordinary materials can no longer meet the increasing requirements of laborers. Therefore, diamond The representative diamond grinding tool has developed rapidly, and its application has penetrated into the fields of mechanical processing, automobile manufacturing, aerospace, biology, medical equipment, electronic information, construction, transportation, geological mining and so on. [0003] 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 grin...

Claims

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Application Information

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IPC IPC(8): B24D3/06B24D18/00
CPCB24D3/06B24D18/009
Inventor 黎超英吴沛荣
Owner LIUZHOU KAITONG NEW MATERIAL TECH CO LTD
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