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Surface roughening treatment method of diamond

A technology of surface roughening and treatment methods, applied in the direction of chemical instruments and methods, surface etching compositions, etc., which can solve the problems of weak chemical bonding of diamonds and falling off of diamond particles

Active Publication Date: 2017-12-15
ZHONGNAN DIAMOND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Diamond surface coating products (titanium plating, nickel plating, etc.) have a certain effect on increasing the holding force of the substrate, but because the chemical bonding between the coating material and the diamond is weak, it is basically based on physical wrapping, so the increase in holding force is limited. The phenomenon of diamond particle shedding is still inevitable

Method used

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  • Surface roughening treatment method of diamond
  • Surface roughening treatment method of diamond
  • Surface roughening treatment method of diamond

Examples

Experimental program
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Effect test

Embodiment 1

[0019] A roughening treatment method for a diamond surface, comprising the steps of:

[0020] 1) Preparation of etching powder: in parts by mass, take 60 parts of corundum powder (particle size 5-20 μm), 1 part of potassium perchlorate (particle size 1-10 μm) and 20 parts of iron oxide powder (particle size 1-10 μm), Add to a mixer and mix evenly to obtain etching powder, set aside;

[0021] 2) Mixing: Take 1000g of diamond particles (Zhongnan Diamond Co., Ltd.) with a particle size of 35 / 40 and a brand name of ZND2160, pour them into a stainless steel bucket, first add 30ml of alcohol to wet the surface of the diamond particles, then add 300g of etching powder and stir uniform;

[0022] 3) Plate: Spread the material obtained in step 2) in a ceramic plate of 400mm×400mm×10mm (thickness is about 15mm);

[0023] 4) Heating: Put the porcelain plate into a muffle furnace (a muffle furnace with a heating chamber size of 500mm×500mm×500mm) for heating. The heating program is as fo...

Embodiment 2

[0026] A roughening treatment method for a diamond surface, comprising the steps of:

[0027] 1) Preparation of etching powder: In parts by mass, take 90 parts of corundum powder (5-20 μm in particle size), 2 parts of potassium perchlorate (1-10 μm in particle size) and 5 parts of iron oxide powder (1-10 μm in particle size), Add to a mixer and mix evenly to obtain etching powder, set aside;

[0028] 2) Mixing: Take 250g of diamond particles (Zhongnan Diamond Co., Ltd.) with a particle size of 35 / 40 and a brand name of ZND2160, pour them into a stainless steel bucket, first add 5ml of alcohol to wet the surface of the diamond particles, and then add 75g of etching powder and stir uniform;

[0029] 3) Plate: spread the material obtained in step 2) in a ceramic plate of 200mm×200mm×10mm (thickness is about 10mm);

[0030] 4) Heating: Put the porcelain plate into a muffle furnace (a muffle furnace with a heating chamber size of 300mm×300mm×300mm) for heating. The heating progra...

Embodiment 3

[0033] A roughening treatment method for a diamond surface, comprising the steps of:

[0034] 1) Preparation of etching powder: In parts by mass, take 70 parts of corundum powder (5-20 μm in particle size), 5 parts of potassium perchlorate (1-10 μm in particle size) and 10 parts of iron oxide powder (1-10 μm in particle size), Add to a mixer and mix evenly to obtain etching powder, set aside;

[0035] 2) Mixing: Take 600g of diamond particles (Zhongnan Diamond Co., Ltd.) with a particle size of 170 / 200 and a brand name of ZND2120, pour them into a stainless steel bucket, first add 40ml of alcohol to wet the surface of the diamond particles, and then add 600g of etching powder and stir uniform;

[0036] 3) Plate: Spread the material obtained in step 2) in a ceramic plate of 400mm×400mm×10mm (thickness is about 20mm);

[0037] 4) Heating: Put the porcelain plate into a muffle furnace (a muffle furnace with a heating chamber size of 500mm×500mm×500mm) for heating. The heating p...

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Abstract

The invention relates to a surface roughening treatment method of a diamond. The method comprises the following steps of: 1) preparing etching powder: uniformly mixing 60-90 parts of emery powder, 1-5 parts of potassium perchlorate and 5-20 parts of iron oxide powder to form the etching powder for future use, 2) mixing: adding the etching powder with the weight of 20-100% of that of diamond grains after wetting the surfaces of the diamond grains with alcohol and performing uniform mixing, 3) traying and heating: horizontally laying a material obtained in step 2), and performing heat preservation at 500-700 DEG C for 1-20min, and 4) screening and cleaning: screening out the etching powder after the material is cooled, washing the diamond grain with water, and performing drying. The method creates a technical condition of etching the surface of the diamond, allows dense small etching pits to be formed on the surface of the diamond and is an effective method of increasing a holding force between the diamond grains and a tool body.

Description

technical field [0001] The invention belongs to the technical field of superhard materials, and in particular relates to a diamond surface roughening treatment method. Background technique [0002] Diamond (or industrial diamond) is widely used in grinding, sawing, drilling and other fields due to its ultra-high strength and hardness, good heat transfer and thermal expansion coefficient and many other excellent properties, and is called "industrial diamond". the teeth of". [0003] In the drilling, cutting, and grinding tools made of diamond particles and metal, ceramic, resin and other matrix materials, the diamond particles are easy to fall off before wear because the matrix material has a weak holding force on the diamond particles. Diamond surface coating products (titanium plating, nickel plating, etc.) have a certain effect on increasing the holding force of the substrate, but because the chemical bonding between the coating material and the diamond is weak, it is bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/53C09K13/00
CPCC04B41/5338C09K13/00
Inventor 卢灿华张帅张凤岭王毅昝亚男
Owner ZHONGNAN DIAMOND CO LTD
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