Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Metal bonding agent, preparation method and diamond grinding wheel

A technology of metal bond and diamond grinding wheel, which is applied in the direction of metal processing equipment, manufacturing tools, abrasives, etc., can solve the problems of increased grinding force, decreased grinding ability of grinding wheel, and poor wettability of diamond, etc., to achieve enhanced bond strength , increase the grinding life, the effect of poor wear resistance

Active Publication Date: 2019-11-22
上海淳和投资中心(有限合伙)
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] In addition, since the base material of the grinding wheel usually adopts a metal base material, during the sintering process, the metal adhesive can be fused together with the metal base material, thereby effectively enhancing the bonding strength between the metal adhesive and the grinding wheel base material. The silver, copper, titanium and indium in the basic components can be respectively silver powder, copper powder, titanium powder and indium powder. Anti-cracking agent can adopt known material that can strengthen the bonding strength between diamond abrasive and bonding agent, among the present invention, anti-cracking agent is selected from titanium carbide (TiC), titanium nitride (TiN), titanium carbonitride At least one of (TiCN), these three materials have the characteristics of high hardness, high melting point, corrosion resistance, etc., and can enhance the bonding strength of diamond abrasives, prevent cracks in the grinding wheel, and are ideal material...

Embodiment 1

[0032] (1) Roughen the surface of the grinding wheel substrate and put it into a mold.

[0033] (2) Mix the metal bond, diamond abrasive and absolute ethanol uniformly in a weight ratio of 6:1:0.5 to obtain a mixture. Wherein, by weight percentage, the metal binder includes the following components: 55% silver, 22% copper, 2.5% titanium, 10% indium, 10% titanium carbide and 0.5% gold.

[0034] (3) Add the mixture in the step (2) to the mold containing the grinding wheel base material, and carry out pressurization, and the pressure is 20Kg / mm 2 , the temperature is controlled at 20-40°C and kept for 5 minutes. After demoulding and drying at 50-80° C. for 1 hour, a grinding wheel blank is obtained.

[0035] (4) Heat and sinter the grinding wheel blank. When heating and sintering, the vacuum degree is controlled at 10 -4 ~10 -8 mbar, sinter at 200°C for 15 minutes, then raise the temperature to 550°C for 10 minutes, then raise the temperature to 700°C for 10 minutes, then ra...

Embodiment 2

[0039] (1) Roughen the surface of the grinding wheel substrate and put it into a mold.

[0040] (2) The metal bond, the diamond abrasive and the viscosity regulator are combined uniformly in a weight ratio of 6:1:0.5 to obtain a mixture. Wherein, by weight percentage, the metal binder includes the following components: 52% silver, 25% copper, 2.5% titanium, 10% indium, 10% titanium carbide and 0.5% graphene.

[0041] (3) Add the mixture in the step (2) to the mold containing the grinding wheel base material, and carry out pressurization, and the pressure is 20Kg / mm 2 , the temperature is controlled at 20-40°C and kept for 5 minutes. After demoulding and drying at 50-80° C. for 1 hour, a grinding wheel blank is obtained.

[0042] (4) Heat and sinter the grinding wheel blank. When heating and sintering, the vacuum degree is controlled at 10 -4 ~10 -8 mbar, sinter at 200°C for 15 minutes, then raise the temperature to 550°C for 10 minutes, then raise the temperature to 700°C...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/10B24D3/34
Inventor 不公告发明人
Owner 上海淳和投资中心(有限合伙)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products