CN103465176A

CN103465176A - Formula of metal-based diamond-impregnated wheel

Info

Publication number: CN103465176A
Application number: CN2013104436320A
Authority: CN
Inventors: 刘林梅; 时文光; 宋国锋
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: 2013-12-25

Abstract

The invention relates to a formula of a diamond grinding wheel through metal binding agent, in particular to a formula of a binding agent for a metal-based diamond grinding wheel with high strength and excellent holding force. A working layer of the metal-based diamond grinding wheel comprises the following compositions in percentage by mass: 20-50% of copper, 5-20% of tin, 20-50% of cobalt, 5-20% of zinc, 10-30% of tungsten, and 0.5-20% of carbon; the metal-based diamond grinding wheel is formed by the following steps of evenly mixing material powder, then pressing for 3-10 minutes under 300MPA when sintering at 650-850 DEG C. Diamond particles can be effectively held through the formula of the designed carcass; the carcass is wear-resistant and low-loss in a high-speed grinding process, the high-speed usage effect of grinding equipment can be better played.

Description

A kind of formula of metal-base diamond emery wheel

Affiliated technical field

The present invention relates to a kind of formula and manufacture method of metal-bonded diamond emery wheel, in particular for the emery wheel of high-speed grinding of processing hard brittle material (as glass).

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 self performance of the diamond grinding bed of material.

Summary of the invention:

The present invention is a kind of a kind of metal-base diamond emery wheel formula that uses the bond formula manufacture that the high strength hold is good.

Technical scheme:

The mass ratio of metal-base diamond emery wheel components of working layer is: copper 20 ~ 50%, tin 5 ~ 20%, cobalt 20 ~ 50%, zinc 5 ~ 20%, tungsten 10 ~ 30%, carbon 0.5 ~ 20%; While after powder mixes, 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 mass ratio, be: copper 20 ~ 50%, tin 5 ~ 20%, cobalt 20 ~ 50%, zinc 5 ~ 20%, tungsten 10 ~ 30%, carbon 0.5 ~ 20%; Mix, 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, it is characterized in that: the mass ratio of metal-base diamond emery wheel components of working layer is: copper 20 ~ 50%, tin 5 ~ 20%, cobalt 20 ~ 50%, zinc 5 ~ 20%, tungsten 10 ~ 30%, carbon 0.5 ~ 20%.

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.