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A kind of process method of cobalt plating on the surface of industrial diamond

A technology of industrial diamonds and process methods, which is applied in metal material coating process, sputtering coating, vacuum evaporation coating, etc., can solve the problem of large interface energy between cobalt film and diamond, so as to reduce the interface energy and expand the scope of application , to avoid the effect of a sharp increase

Active Publication Date: 2019-09-17
ZHONGNAN DIAMOND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to propose a kind of processing method of cobalt plating on industrial diamond surface, described technology has solved the large-scale mixing homogeneity problem, can be used for large-scale industrial production; Solve the problem that cobalt film and diamond interface energy are big, The coating is firmly combined with the diamond, and the prepared cobalt-coated diamond can be used in high-temperature sintered tools and brazing tools, expanding the application range of cobalt-coated diamonds

Method used

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  • A kind of process method of cobalt plating on the surface of industrial diamond
  • A kind of process method of cobalt plating on the surface of industrial diamond
  • A kind of process method of cobalt plating on the surface of industrial diamond

Examples

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Effect test

Embodiment 1

[0028] Cobalt plating on industrial diamond surfaces using the following processes:

[0029] 1) Preparation of river sand: select pure white river sand, wash with water and then carry out particle size screening. The screening method refers to GB / T6406. River sand with particle size; use river sand with a particle size of 80 / 100.

[0030] 2) Preparation of adhesive: The adhesive consisted of 120g of PEG-200 and 80g of PEG-600, and the above-mentioned PEG-200 and PEG-600 were mixed uniformly to obtain 200g of adhesive.

[0031] 3) Preparation of coating powder: 82g of potassium chlorate, 67g of sodium chloride, and 22g of cobalt fluoride were ball-milled with agate balls until all passed through a 100-mesh sieve, and then 560g of cobalt powder and 1269g of river sand prepared in step 1) were added ; Then mix the above components and mill with agate ball for 30 minutes to obtain 2000g of coating powder; the particle size of the cobalt powder is 800 mesh, and the content is ≥99....

Embodiment 2

[0036] Cobalt plating on industrial diamond surfaces using the following processes:

[0037] 1) Preparation of river sand: select pure white river sand, wash with water and then carry out particle size screening. The screening method refers to GB / T6406. River sand with grain size; the grain size of river sand is 80 / 100.

[0038] 2) Preparation of adhesive: The adhesive consisted of 140g of PEG-200 and 60g of PEG-600, and the above-mentioned PEG-200 and PEG-600 were mixed uniformly to obtain 200g of adhesive.

[0039] 3) Preparation of coating powder: 79g of potassium chlorate, 65g of sodium chloride, and 29g of cobalt fluoride were ball-milled with agate balls until all passed through a 100-mesh sieve, and then 609g of cobalt powder and 1219g of river sand prepared in step 1) were added ; Then mix the above components with agate ball mill for 30 minutes to obtain 2001g of coating powder; the particle size of the cobalt powder is 800 mesh, and the content is ≥99.5%.

[0040] ...

Embodiment 3

[0044]Cobalt plating on industrial diamond surfaces using the following processes:

[0045] 1) Preparation of river sand: select pure white river sand, wash with water and then carry out particle size screening. The screening method refers to GB / T6406. River sand with particle size; use river sand with a particle size of 80 / 100.

[0046] 2) Preparation of adhesive: The adhesive consisted of 140g of PEG-200 and 60g of PEG-600, and the above-mentioned PEG-200 and PEG-600 were mixed uniformly to obtain 200g of adhesive.

[0047] 3) Preparation of coating powder: 79g of potassium chlorate, 65g of sodium chloride, and 29g of cobalt fluoride were ball-milled with agate balls until all passed through a 100-mesh sieve, and then 609g of cobalt powder and 1219g of river sand prepared in step 1) were added ; Then mix the above components with agate ball mill for 30 minutes to obtain 2001g of coating powder; the particle size of the cobalt powder is 800 mesh, and the content is ≥99.5%. ...

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Abstract

The invention discloses a technology for plating industrial diamond surfaces with cobalt. The technology comprises the following steps of (1) river sand preparing, (2) binder preparing, (3) plating layer powder preparing, (4) plating formula mixing, (5) evaporation and (6) separating. According to the technology for plating the industrial diamond surfaces with cobalt, the problems of the high industrial production cost and poor uniformity are solved, and the technology is suitable for large-batch industrial production; and meanwhile, the problem that the interface energy of cobalt films and industrial diamonds is large is solved, plating layers and the diamonds are combined firmly, the prepared cobalt-plated diamonds can be used for a high-temperature sintering tool and a brazing tool, and the application range of the cobalt-plated industrial diamonds is widened.

Description

technical field [0001] The invention belongs to the technical field of superhard materials, and in particular relates to a process method for cobalt plating on the surface of industrial diamonds. Background technique [0002] During the manufacture and use of industrial diamond (also known as industrial diamond) cutting and drilling tools, the industrial diamond particles are eroded by air and tool matrix materials at high temperatures, and their strength will be significantly reduced; most industrial diamond particles are used in tools. It falls off from the substrate due to the action of grinding force. The surface of industrial diamonds is coated with a metal coating, which can effectively improve the bonding strength of industrial diamond crystal particles and the metal material of the tool base through chemical bonding; the isolation effect of the metal film layer on industrial diamonds protects them from high-temperature sintering and high-temperature grinding. Erosio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/24C23C14/18
Inventor 王志涛李明辉李璞张凤岭
Owner ZHONGNAN DIAMOND CO LTD
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