CN103495936A

CN103495936A - Formula of diamond-impregnated wheel

Info

Publication number: CN103495936A
Application number: CN201310443749.9A
Authority: CN
Inventors: 刘林梅; 宋国锋; 时文光
Original assignee: QINHUANGDAO XINGSHENG TECHNOLOGY Co Ltd
Current assignee: QINHUANGDAO XINGSHENG TECHNOLOGY Co Ltd
Priority date: 2013-09-26
Filing date: 2013-09-26
Publication date: 2014-01-08

Abstract

Disclosed is a formula of a diamond-impregnated wheel. The formula of the diamond-impregnated wheel comprises, by mass, 20-50% of copper tin 20 alloy powder, 10-50% of cobalt powder, 5-30% of zinc powder, 5-30% of tungsten carbide powder and 5-30% of tin powder. Diamond particles can be effectively controlled by a carcass designed according to the formula, the carcass is resistant to abrasion in the high-speed grinding process, consumption is small, and high-speed using effect of grinding equipment is better exerted.

Description

A kind of formula of diamond-impregnated wheel

Affiliated technical field

The present invention relates to a kind of formula of metal-bonded diamond emery wheel, be applicable to the High-speed machining of hard brittle material.

Background technology

The processing and fabricating method of metal-base diamond emery wheel is to adopt the metallic elements such as iron, nickel, copper, tin, manganese, zinc, tungsten, cobalt to adopt intermediate frequency furnace or resistance furnace hot pressed sintering in protective atmosphere to make; the equipment rotating speed reach 5000 rev/mins and higher in; the loss of emery wheel sharply strengthens; life-span descends very fast; also have plenty of and can't adapt to running up of equipment and cause production efficiency low, this is mainly limited by the bond strength of the diamond grinding bed of material and carcass strength.

Summary of the invention:

The present invention, for solving bond strength and the carcass strength of current bond, uses the prescription quality ratio of diamond-impregnated wheel carcass to be: copper tin 20 alloyed powder 20% ~ 50% cobalt powders 10% ~ 50%, zinc powder 5 ~ 30%, tungsten carbide powder 5% ~ 30%, glass putty 5 ~ 30%.

Technical scheme:

Metal-base diamond emery wheel bond prescription quality ratio is: copper tin 20 alloyed powder 20% ~ 50% cobalt powders 10% ~ 50%, zinc powder 5 ~ 30% tungsten carbide powder 5% ~ 30% glass puttys 5 ~ 30%; While after diamond and bond powder mix, being sintered to 650 ~ 850 degrees centigrade, the 300MPA compacting is 3 ~ 10 minutes.

The beneficial effect that the present invention obtains is:

Designed matrix formula can effectively be controlled diamond particles; In the high-speed grinding process, carcass is wear-resisting, and loss is little, has better given play to the high speed result of use of equipment for grinding.

Specific embodiments is as follows: by certified various materials according to copper tin 20 20% ~ 50% cobalt powders 10% ~ 50%, the ratio of zinc powder 5 ~ 30% tungsten carbide powder 5% ~ 30% glass puttys 5 ~ 30% mixes, adding diamond 3 ~ 10% mixes again again, carry out the emery wheel steel matrix, mixed material and matrix are put into to the mould assembling to be tamped, the fed to boiler sintering of colding pressing, while being sintered to 650 ~ 850 degrees centigrade, the 300MPA compacting is 3 ~ 10 minutes, sintering finishes, and is cooled to after room temperature the demoulding in air and carries out follow-up machining and the finishing of grinding shape.

Claims

1. a metal-base diamond emery wheel is filled a prescription, and its bond prescription quality ratio is: copper tin 20 alloyed powders 20% ~ 50%, cobalt powder 10% ~ 50%, zinc powder 5 ~ 30%, tungsten carbide powder 5% ~ 30%, glass putty 5 ~ 30%.

2. according to the diamond-impregnated wheel described in claim 1, while it is characterized in that being sintered to 650 ~ 850 degrees centigrade, the 300MPA compacting is 3 ~ 10 minutes.