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Preparation method for coating surface of diamond with boron-alloy plating layer

A surface coating, boron alloy technology, used in metal processing equipment, coating, transportation and packaging, etc., can solve the problems of high equipment cost, low bonding strength, difficult to control the uniformity of the coating surface, etc. Wetness, the effect of improving interfacial bonding ability

Inactive Publication Date: 2018-12-07
WUHU CHANGLING DIAMOND TOOL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with electroplating and electroless plating, since the coating metal and diamond are still in mechanical interlocking, the bonding strength between the two is not high; while PVD, CVD and magnetron sputtering have high equipment costs and low efficiency on the one hand, and on the other On the one hand, it is not suitable for surface modification of diamond powder, and the uniformity of the coating surface is difficult to control

Method used

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  • Preparation method for coating surface of diamond with boron-alloy plating layer
  • Preparation method for coating surface of diamond with boron-alloy plating layer
  • Preparation method for coating surface of diamond with boron-alloy plating layer

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A method for preparing a diamond surface-coated boron alloy coating, comprising the steps of:

[0026] S1. Soak diamond micropowder with a particle size of 200 μm in dilute sulfuric acid solution, heat and stir at 70°C for 80 minutes, filter and rinse repeatedly with distilled water until the pH of the washing solution is 7, then use acetone to ultrasonically clean for 30 minutes, and then use distilled water to ultrasonically clean After filtering for 20 minutes, rinse with absolute ethanol for 3 times, and then vacuum dry to obtain the cleaned diamond powder; add the cleaned diamond powder and amorphous boron powder with a particle size of 1 μm into the high-speed mixer at a mass ratio of 10:0.5 Mix evenly, install the evenly mixed powder in a graphite crucible, put it into a vacuum carbon tube furnace, and evacuate until the vacuum degree reaches 10 -3 After the temperature is below Pa, raise the temperature to 1150°C and keep it warm for 40 minutes to react. After c...

Embodiment 2

[0030] A method for preparing a diamond surface-coated boron alloy coating, comprising the steps of:

[0031] S1. Soak diamond micropowder with a particle size of 50 μm in dilute sulfuric acid solution, heat and stir at 80°C for 60 minutes, filter and rinse repeatedly with distilled water until the pH of the washing solution is 7, then use acetone to ultrasonically clean for 30 minutes, and then use distilled water to ultrasonically clean After filtering for 30 minutes, rinse with absolute ethanol twice, and then vacuum dry to obtain the cleaned diamond powder; add the cleaned diamond powder and amorphous boron powder with a particle size of 1 μm into the high-speed mixer at a mass ratio of 10:1 Mix evenly, install the evenly mixed powder blend in a graphite crucible, put it in a vacuum carbon tube furnace, and vacuum until the vacuum degree reaches 10 -3 After the temperature is below Pa, raise the temperature to 1050°C and keep it warm for 60 minutes. After cooling to room t...

Embodiment 3

[0034] A method for preparing a diamond surface-coated boron alloy coating, comprising the steps of:

[0035] S1. Soak diamond micropowder with a particle size of 500 μm in dilute sulfuric acid solution, heat and stir at 60°C for 90 minutes, filter and rinse repeatedly with distilled water until the pH of the washing solution is 6, then use acetone to ultrasonically clean for 60 minutes, and then use distilled water to ultrasonically clean After filtering for 10 minutes, rinse with absolute ethanol for 4 times, and then vacuum-dry to obtain the cleaned diamond powder; add the cleaned diamond powder and amorphous boron powder with a particle size of 10 μm into the high-speed mixer at a mass ratio of 10:0.5 After mixing evenly, install the uniformly mixed powder blend in a graphite crucible, put it into a vacuum carbon tube furnace, and vacuum until the vacuum degree reaches 10 -3 After the temperature is below Pa, raise the temperature to 1250°C and keep it warm for 30 minutes....

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Abstract

The invention discloses a preparation method for coating the surface of a diamond with a boron-alloy plating layer. The preparation method comprises the following steps: subjecting diamond micro-powder and amorphous boron powder to a high-temperature processing reaction, so as to obtain the diamond micro-powder of which the surface is plated with a boron layer; and then, subjecting the diamond micro-powder of which the surface is plated with the boron layer and one or more raw metals to a heating reaction, so as to obtain the diamond of which the surface is coated with the boron-alloy platinglayer. According to the preparation method for coating the surface of the diamond with the boron-alloy plating layer, boron carbide and a boron alloy layer are formed on the surface of the diamond micro-powder, so that the bonding strength between the metal alloy plating layer and the diamond can be obviously improved; and furthermore, the whole preparation method is simple in process and beneficial to industrialized production.

Description

technical field [0001] The invention relates to the technical field of diamond surface treatment, in particular to a method for preparing a diamond surface-coated boron alloy coating. Background technique [0002] Diamond itself not only has excellent properties such as high hardness, corrosion resistance and wear resistance, but also has excellent optical, acoustic, thermal and electrical properties. For more than half a century, the production and application technology of artificial diamond has developed by leaps and bounds, and its quantity, quality and many properties have reached or even surpassed that of natural diamond. Diamond and its products are not only widely used in various industrial and technical fields such as machinery, metallurgy, construction, transportation, and national defense, but also have been expanded to important fields such as high-performance heat-resistant parts, corrosion-resistant parts, heat-conducting components and chips. Superhard materi...

Claims

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Application Information

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IPC IPC(8): B22F1/02
CPCB22F1/17
Inventor 胡昌悌
Owner WUHU CHANGLING DIAMOND TOOL CO LTD
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