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Preparation device and method for diamond-containing coating

A technology of diamond coating and preparation equipment, which is applied in the direction of metal material coating technology, coating, metal processing equipment, etc., and can solve the problems of unusable coating, high surface roughness of coating, and decreased wear resistance of coating , to achieve the effect of simple installation

Active Publication Date: 2017-12-12
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The diamond coatings prepared by the above methods have the following problems: the random distribution of diamonds leads to a decrease in the wear resistance of the coating and a high surface roughness of the coating. Uniform and cannot be used to prepare coatings

Method used

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  • Preparation device and method for diamond-containing coating
  • Preparation device and method for diamond-containing coating

Examples

Experimental program
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Effect test

preparation example Construction

[0028] A preparation device containing a diamond coating, which is composed of an arrangement device and a container; the arrangement device includes an adsorption device and a filtrate fishing device; the adsorption device is surrounded by a cylinder liner at the upper end and an adsorption orifice plate at the lower end, and the adsorption orifice are fixed by screws; the filtrate fishing device is composed of a shell and a filtrate orifice, the upper end of the shell is connected to the first driving device, the shell and the cylinder liner are connected through the second driving device, the bottom of the shell is provided with a through groove, and the filtrate orifice Through the through groove to the bottom of the adsorption orifice, the filtrate orifice is connected to the third driving device; a container is arranged under the arrangement device, and an ultrasonic vibrator is arranged at the bottom of the container.

[0029] Further, the cylinder liner is connected wit...

Embodiment 1

[0058] The first step: select artificial single crystal diamond with a particle size of 18-20 mesh and regular shape, then put the diamond in a nitric acid solution with a concentration of 10%, wash it for 10 minutes, remove surface grease and sundries, and then use deionized water Wash until neutral, and finally dry for later use.

[0059] Step 2: Put 2 / 3 of 10% NaOH and 15% Na in the container 2 CO 3 solution, put the dried diamonds in the first step into the solution, and use a glass rod to stir the diamonds. The diamonds will float on the surface of the solution by using their own hydrophobicity and the tension of the solution, forming a layer of tightly arranged and orderly diamonds" pose" uniform single-layer diamond layer.

[0060] Step 3: Use an isolation orifice plate to transfer and isolate the diamond layer floating on the liquid surface to the liquid surface below the adsorption device.

[0061] Step 4: Start the ultrasonic vibrator (10) to adjust the "position"...

Embodiment 2

[0070] The first step: select artificial single crystal diamond with a particle size of 35-40 mesh and regular shape, then put the diamond in a sulfuric acid solution with a concentration of 10%, wash it for 10 minutes, remove surface grease and sundries, and then use deionized water Wash until neutral, and finally dry for later use.

[0071] The second step: Put 2 / 3 of the mixed solution containing 5% HCl and 15% NaCl in the beaker and the container, put the diamond dried in the first step into the solution, stir the diamond with a glass rod, and the diamond will use The self-hydrophobicity and the tension of the solution float up on the surface of the solution, forming a single-layer diamond layer that is closely and orderly arranged and the "position and posture" of diamonds is uniform.

[0072] Step 3: Use an isolation orifice plate to transfer and isolate the diamond layer floating on the liquid surface to the liquid surface below the adsorption device.

[0073] Step 4: ...

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Abstract

The invention discloses a preparation device and a method for a diamond-containing coating. The preparation device comprises a configuration device and a container; the configuration device comprises an adsorption device and a filtrate extracting device; the adsorption device is defined by a cylinder sleeve at the upper end and an adsorption pore plate at the lower end, and the cylinder sleeve and the adsorption pore plate are fixed through screws; the filtrate extracting device comprises a shell and a filtrate pore plate, the upper end of the shell is connected with a first driving device, the shell is connected with the cylinder sleeve through a second driving device, through grooves are formed in the bottom part of the shell, the filtrate pore plate penetrates into the position below the adsorption pore plate from the through grooves, and the filtrate pore plate is connected with a third driving device; and the container is arranged under the configuration device, and the bottom part of the container is provided with an ultrasonic vibrator. The invention also discloses a method for preparing the diamond-containing coating by using the preparation device. The preparation device has the advantages of being simple and efficient, the process of filtrating, cleaning and transferring for the diamond-containing coating can be realized, and the diamond-containing coating which is tightly and orderly arranged can be prepared.

Description

technical field [0001] The invention relates to a preparation device and method of a diamond-containing coating. Background technique [0002] Diamond is particularly suitable as a hard additive phase for wear-resistant coatings due to its ultra-high hardness and low coefficient of friction. For micron and nanometer diamond particles, the diamond-containing wear-resistant composite coatings are mainly prepared by electroplating and electroless plating. The thickness of the micro- and nano-diamond composite coatings prepared by electroplating and electroless plating is relatively thin, and the bonding force between the diamond and the matrix metal is low, and it is easy to fall off, resulting in limited wear resistance of the coating. For workpieces working in severely abrasive environments, coarse-grained diamonds are usually used to prepare thick composite coatings. At present, the diamond-containing composite coating is mainly prepared by vacuum sintering method and meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B23K1/008
CPCC23C24/103B23K1/008Y02P10/25
Inventor 张凤林王健陈小森黄惠平
Owner GUANGDONG UNIV OF TECH
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