Device for depositing diamond coating layers and preparation method of deposited diamond coating layers

A diamond coating and double-layer technology, which is applied in the direction of metal material coating process, coating, gaseous chemical plating, etc., can solve the problems of difficult coating, low bonding force of diamond coating, uneven diamond coating, etc. , to achieve the effect of improving the bonding strength and growing the diamond coating uniformly

Active Publication Date: 2018-04-20
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide a device for depositing a diamond coating, so as to solve the problem that the existing hot wire chemical vapor deposition device cannot realize the uniform coating of the diamond coating, especially the difficulty in realizing the coating in the inner hole of the mold. And the technical problem of the low bonding force between the diamond coating and the mold substrate
[0007] Another object of the present invention is to provide a method for preparing a deposited diamond coating to solve the uneven diamond coating grown by the existing hot wire chemical vapor deposition method, especially the difficulty in achieving the bonding force between the coating and the diamond coating in the inner hole of the mold. low technical issues

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  • Device for depositing diamond coating layers and preparation method of deposited diamond coating layers
  • Device for depositing diamond coating layers and preparation method of deposited diamond coating layers

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preparation example Construction

[0031] On the basis of the above-mentioned device for depositing a diamond coating, an embodiment of the present invention also provides a preparation method for depositing a diamond coating. combine figure 1 and 2 , the preparation method of the deposited diamond coating comprises the steps:

[0032] Step S01: Clamp the mold 3 after surface pretreatment and crystal planting treatment on the clamping part 221 contained in the above-mentioned device for depositing the diamond coating;

[0033] Step S02: On the basis of step S01, grow a diamond coating on the surface of the mold 3 according to the method of growing a diamond coating;

[0034] Step S03: On the basis of step S02, drive the transmission rod 21 contained in the device to rotate or move, thereby driving the clamping part 221 contained in the clamp 22 to rotate, so that the mold 3 is turned over, And continue to grow the diamond coating on the surface of the mold 3 .

[0035] Wherein, the surface pretreatment in s...

Embodiment 1

[0053] This embodiment provides a method for preparing a diamond coating in the inner hole of a micro-hole wire drawing die. The method comprises the steps of:

[0054] Step S1: Clean the drawing die, first use deionized water to ultrasonically clean twice, each time for 5 minutes, and finally use acetone to ultrasonically clean for 5 minutes, and blow dry with nitrogen;

[0055] Step S2: corroding the cleaned wire drawing die to increase the surface roughness, improve the interlocking ability of the coating, and remove a certain amount of cobalt. Corrosion treatment is ultrasonic cleaning in alkaline solution for 3 minutes, and then cleaning in acid solution for 20 seconds; among them, the alkaline solution is: 5gK 3 [Fe(CN)] 6 +5gKOH+50mlH 2O, the acid solution is: 10mlH 2 SO 4 +100mlH 2 o 2 .

[0056] Step S3: cleaning the wire drawing die, and cleaning the corrosion solution remaining in the cemented carbide. Use deionized water to ultrasonically clean twice, each...

Embodiment 2

[0060] This embodiment provides a method for preparing a diamond coating in the inner hole of a micro-hole wire drawing die. The method comprises the steps of:

[0061] Step S1: Clean the drawing die, first use deionized water to ultrasonically clean twice, each time for 5 minutes, and finally use acetone to ultrasonically clean for 5 minutes, and blow dry with nitrogen;

[0062] Step S2: corroding the cleaned wire drawing die to increase the surface roughness, improve the interlocking ability of the coating, and remove a certain amount of cobalt. Corrosion treatment is ultrasonic cleaning in alkaline solution for 3 minutes, and then cleaning in acid solution for 20 seconds; among them, the alkaline solution is: 5gK 3 [Fe(CN)] 6 +5gKOH+50mlH 2 O, the acid solution is: 10mlH 2 SO 4 +100mlH 2 o 2 ;

[0063] Step S3: Clean the wire drawing die, clean the corrosive solution remaining in the cemented carbide, use deionized water to ultrasonically clean twice, each time for ...

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Abstract

The invention discloses a device for depositing diamond coating layers and a preparation method of deposited diamond coating layers. The device for depositing the diamond coating layers comprises a vacuum cavity, and a sample table arranged in the vacuum cavity; the sample table comprises a transmission rod and multiple fixtures; each fixture comprises a clamping part, and a connecting rod fixedlyconnected with the clamping part; driven wheels are arranged on the connecting rods; and the transmission rod drives the driven wheels to rotate to realize rotation of the clamping parts. The preparation method of the deposited diamond coating layers is to use the device for depositing the diamond coating layers to grow uniform diamond coating layers on surfaces of molds, in particular in microholes of microhole wire drawing molds; and the bonding strength between the diamond coating layers and the molds is improved.

Description

technical field [0001] The invention belongs to the technical field of superhard composite materials and equipment, and in particular relates to a device for depositing a diamond coating and a preparation method for depositing a diamond coating. Background technique [0002] With the development of high-end manufacturing, traditional cutting tools and mechanical components are difficult to meet the requirements of precision high-end manufacturing in terms of service life, precision and surface integrity. Diamond is the hardest substance among known substances. It not only has a low coefficient of friction and the highest elastic modulus, but also has the highest thermal conductivity and good chemical stability. It has great prospects in the field of precision high-end manufacturing. [0003] The quantity of natural diamond is small, the size is limited, and the price is extremely expensive, so it is not suitable for application in the manufacturing field, while the preparati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/27C23C16/458
CPCC23C16/271C23C16/4584
Inventor 唐永炳黄磊王陶杨扬
Owner SHENZHEN INST OF ADVANCED TECH
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