Metal bonding agent, preparation method and diamond grinding wheel

Abstract

The invention provides a metal bonding agent, a preparing method and a diamond grinding wheel with the metal bonding agent. The metal bonding agent comprises base components and an anti-cracking agentadded on the basis of the base components; the base components comprise silver, copper, titanium and indium; the anti-cracking agent is selected from at least one of titanium carbide, titanium nitride and titanium carbonitride, the base components include, by proportion, 40% to 60% of silver, 20% to 30% of copper, 0.5% to 5% of titanium, 10% to 20% of indium and 1% to 15% of the anti-cracking agent. The metal bonding agent has the good self sharpening, the continuous grinding capacity can be kept, and the grinding service life of the diamond grinding wheel can be greatly prolonged.

Description

technical field [0001] The invention relates to a metal bond, a preparation method and a diamond grinding wheel using the metal bond. Background technique [0002] Brittle and hard materials such as sapphire, window glass, and magnetic materials are widely used in mobile phones, precision electronic components, precision optical devices and high-end watches. Because the texture of the above-mentioned brittle and hard materials has the characteristics of high hardness and high brittleness, grinding processing Very difficult. In the early days, the traditional grinding method was used for grinding, that is, grinding with milling powder. The disadvantage is that the consumption of grinding powder is large, most of the grinding powder is not fully utilized, and a large amount of dust and sewage are generated during the grinding process, which is harmful to the environment. severe pollution. With the advancement of grinding technology, diamond grinding wheels made by bonding di...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned bonding agent still cannot fully meet the requirements of the diamond grinding wheel. Among them, the resin bonding agent is an organic material, which is limited by the performance of the resin itself. The heat resistance, water resistance, and wear resistance of the grinding wheel are poor, and precision forming grinding cannot be performed; metal The bonded diamond grinding wheel has poor self-sharpening; in the manufacturing process of the diamond grinding wheel, the wettability of the vitrified bond to the diamond is poor, which greatly reduces the holding force of the bond to the diamond, and the diamond is easy to fall off during the grinding process of the abrasive tool, resulting in a large loss

The electroplated diamond grinding wheel generally adopts the method of wrapping the diamond abrasive with a nickel plating layer to fix the diamond grinding wheel on the substrate, which belongs to physical wrapping, and the wrapping depth reaches more than 2 / 3 of the diamond particles. , the grinding ability of the grinding wheel drops sharply, and the grinding force increases at the same time, the heat is serious, and the grinding wheel will not be able to continue to be used