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Self-grinding diamond tool matrix material

A diamond tool and matrix material technology, which is applied in the field of diamond tool matrix materials, can solve the problems that the advantages of pre-alloyed powder cannot be brought into play, and the formability is not good, so as to achieve good fluidity and shrinkage, short sintering time, The effect of high edge

Active Publication Date: 2014-03-12
HUNAN FORLONG ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pre-alloyed powder produced by the atomization method by several large-scale powder manufacturers in China can only be mixed with elemental metal powder due to poor formability, and the advantages of the pre-alloyed powder cannot be brought into play

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Self-grinding diamond tool matrix material, its weight percentage composition is: FAM generation cobalt pre-alloy powder 95% and silicon carbide (200#) 5%; Wherein, the weight percentage composition of FAM generation cobalt pre-alloy powder is: Nano-sized honeycomb structure electrolytic iron-nickel-cobalt alloy powder 50%; copper-iron alloy powder 40%; copper-tin alloy powder 10%. Using this matrix material to make diamond tools—ceramic dry grinding wheels, solves the problem of easy edge loss with bronze-based matrix materials in the past, prolongs the grinding life by more than 30%, and reduces production costs by more than 25%.

Embodiment 2

[0028] Self-grinding diamond tool matrix material, its weight percentage composition is: FAM generation cobalt pre-alloy powder 97% and cooked mica (200#) 3%; Wherein, the weight percentage composition of FAM generation cobalt pre-alloy powder is: Electrolytic iron-nickel-cobalt alloy powder with nano-sized honeycomb structure 25%; copper-iron alloy powder 60%; copper-tin alloy powder 15%. Using the matrix material to make a diamond tool—marble medium-diameter saw blade, compared with the previous brass-based matrix material, can reduce the amount of diamond used.

Embodiment 3

[0030] Self-grinding diamond tool matrix material, its weight percentage composition is: FAM generation cobalt pre-alloy powder 99% and silicon carbide (200#) 1%; Wherein, the weight percentage composition of FAM generation cobalt pre-alloy powder is: Nano-sized honeycomb structure electrolytic iron-nickel-cobalt alloy powder 30%; copper-iron alloy powder 50%; copper-tin alloy powder 20%. Using this carcass material to make diamond tools - small stone cutting discs can improve processing efficiency by more than 20%, reduce production costs by more than 15%, and the yield of automatic cold pressing can reach more than 98%. The shrinkage and product retention of the pressureless sintering process It has good performance of no deformation and no cracking, which greatly improves the yield of products and ensures the stability of product performance.

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Abstract

The invention discloses a self-grinding diamond tool matrix material. The self-grinding diamond tool matrix material comprises the following components in percentage by weight: 91 to 99.5 percent of FAM cobalt-substitute pre-alloy powder and 0.5 to 9 percent of a grinding material; the FAM cobalt-substitute pre-alloy powder comprises the following components in percentage by weight: 25 to 50 percent of electrolytic fernico powder with a nano cellular structure, 40 to 60 percent of copper-iron alloy powder, and 10 to 30 percent of copper-tin alloy powder. The self-grinding diamond tool matrix material has the following characteristics: firstly, through the adoption of the ultrafine FAM cobalt-substitute pre-alloy powder in the matrix, the holding force of the matrix on a diamond can be increased, and the function of each diamond can be performed fully; meanwhile, the sintering temperature can be lowered, so as to reduce damage of high temperature to the diamond and reduce the production cost; secondly, through the addition of ordinary grinding materials such as alumina, silicon carbide, quartz sand or cooked mica into the matrix, the matrix has a self-grinding or self-weakening effect, but the holding force of the matrix on the diamond is not influenced, so as to achieve relatively-great diamond protrusion height.

Description

technical field [0001] The invention belongs to a carcass material, in particular to a self-grinding diamond tool carcass material. Background technique [0002] Since the birth of diamond sawing tools and grinding tools in the 1970s, in order to give full play to the role of diamond, people have designed various carcass materials to meet the needs of tool performance, processing materials and processing methods. Compatible requirements. Carcass materials for manufacturing diamond tools include metal carcasses, electroplated carcass, resin carcass, ceramic carcass, etc. Diamond tools with metal as the matrix use diamond as the cutting material, metal powder as the matrix material, and use powder metallurgy methods to press, sinter and process diamond products. It is currently the largest variety and the largest consumption. , the most widely used class of tools. [0003] The role of the matrix in the process of diamond tool processing: 1) disperse and hold the diamond; 2)...

Claims

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Application Information

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IPC IPC(8): C22C30/04C22C32/00C22C9/00B22F1/00
Inventor 郑日升
Owner HUNAN FORLONG ADVANCED MATERIALS CO LTD
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