Powder-shaped adhesive for diamond composite sheet and preparation method thereof

A diamond composite sheet and powdery technology, which is applied in the field of superhard material products, can solve the problems of narrow sintering range, poor quality consistency, unsuitable for large-scale production, etc., and achieve the effect of avoiding serious influence and uniform structure

Active Publication Date: 2013-01-30
河南亚龙金刚石制品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of poor quality consistency, narrow sintering range, poor production stability and unsuitable for large-scale production in the production process of diamond composite sheets in the prior art, the present invention provides a powd

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] The powdery adhesive for a diamond composite sheet of this embodiment is made of raw materials with the following weight ratios: 70 parts cobalt, 3 parts boron carbide, 5 parts silver, 1.5 parts silicon, and the balance is graphene.

[0021] The aforementioned cobalt is carbonyl cobalt powder with an average particle size of 1 μm and a purity of 99.9% or more; graphene is composed of 2-10 carbon layers called multilayer graphene; the boron carbide and silver are both powders with a purity of 99.7% or more .

[0022] The above-mentioned powdery adhesive for a diamond composite sheet is a pre-alloyed powder with an average particle size of 1-2 μm.

[0023] The powdery adhesive for the diamond composite sheet of this embodiment is prepared by the following steps:

[0024] (1) Ingredients: Weigh the following raw materials according to the following weight ratio: 70 parts of cobalt, 3 parts of boron carbide, 5 parts of silver, and 1.5 parts of silicon.

[0025] (2)...

Example Embodiment

[0031] Example 2

[0032] The powdery adhesive for a diamond composite sheet of this embodiment is made of raw materials with the following weight ratios: 73 parts of cobalt, 2.5 parts of boron carbide, 4 parts of silver, 1 part of silicon, and the balance being graphene.

[0033] The aforementioned cobalt is carbonyl cobalt powder with an average particle size of 1 μm and a purity of 99.9% or more; graphene is composed of 2-10 carbon layers called multilayer graphene; the boron carbide and silver are both powders with a purity of 99.7% or more .

[0034] The above-mentioned powdery adhesive for a diamond composite sheet is a pre-alloyed powder with an average particle size of 1-2 μm.

[0035] The powdery adhesive for the diamond composite sheet of this embodiment is prepared by the following steps:

[0036] (1) Ingredients: Weigh the following raw materials according to the following weight ratio: cobalt: 73 parts, boron carbide 2.5 parts, silver 4 parts, silicon: 1 part.

[0037] (2) ...

Example Embodiment

[0043] Example 3

[0044] The powdery adhesive for a diamond composite sheet of this embodiment is made of raw materials with the following weight ratios: 75 parts of cobalt, 2 parts of boron carbide, 4 parts of silver, 0.5 parts of silicon, and the balance being graphene.

[0045] The aforementioned cobalt is carbonyl cobalt powder with an average particle size of 1 μm and a purity of 99.9% or more; graphene is composed of 2-10 carbon layers called multilayer graphene; the boron carbide and silver are both powders with a purity of 99.7% or more .

[0046] The above-mentioned powdery adhesive for a diamond composite sheet is a pre-alloyed powder with an average particle size of 1-2 μm.

[0047] The powdery adhesive for the diamond composite sheet of this embodiment is prepared by the following steps:

[0048] (1) Ingredients: Weigh the following raw materials according to the following weight ratio: 75 parts of cobalt, 2 parts of boron carbide, 4 parts of silver, and 0.5 parts of silic...

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PUM

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Abstract

The invention relates to powder-shaped adhesive for a diamond composite sheet. The powder-shaped adhesive is composed of the following raw materials by weight: 70-75% of cobalt, 2-75% of boron carbide, 3-5% of silver, 0.5-1.5% of silicon and the balance of graphene. The preparation method of powder catalyst includes: placing the cobalt, the boron carbide, the silver and the silicon into a ball mill by proportion, grinding the mixture for 4-6 hours, smelting the mixture in a high-temperature furnace, performing cooling through high-purity nitrogen, and breaking the mixture into metal powder with the granularity of 1-2mum; and mixing the obtained powder with graphene powder according to proportion, mixing the mixture in a three-dimensional blender mixer for 4-6 hours, and finally performing surface purification treatment in a vacuum furnace to obtain the powder-shaped adhesive for the diamond composite sheet. The diamond composite sheet synthetized by the powder-shaped adhesive serving as padding has the remarkable advantages of being low in sintering temperature, wide in technological range, good in production stability, high in finished product rate and the like.

Description

Technical field [0001] The invention relates to the field of superhard material products, in particular to a powdery adhesive for diamond composite sheets and a preparation method thereof, and is mainly used for the production of high-grade diamond composite sheets. Background technique [0002] Diamond composite sheet refers to a composite material made by adding a small amount of metal or non-metal binder to diamond abrasive grains and synthesized by high temperature and high pressure. Because of its excellent properties such as high hardness, good thermal conductivity, and high impact resistance, It is widely used in oilfield mining, infrastructure construction, house maintenance, mechanical processing, geological prospecting and other fields. With the development of science and technology, it has also become an indispensable key material in high-tech fields such as microelectronics, communications, and aerospace. At present, diamond composite sheets generally use diamond micr...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F3/10C22C19/07C22C32/00
Inventor 陈强王恒花波波
Owner 河南亚龙金刚石制品股份有限公司
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