CN105731449B - A kind of preparation method of porous foam diamond - Google Patents
A kind of preparation method of porous foam diamond Download PDFInfo
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- CN105731449B CN105731449B CN201610040477.1A CN201610040477A CN105731449B CN 105731449 B CN105731449 B CN 105731449B CN 201610040477 A CN201610040477 A CN 201610040477A CN 105731449 B CN105731449 B CN 105731449B
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- diamond
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- porous foam
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- Crystals, And After-Treatments Of Crystals (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a kind of preparation method of porous foam diamond, this method is after being well mixed diamond particles and/or powder with metal dust, it is placed in protective atmosphere, it is calcined at high temperature, product of roasting is after removing metal, produce porous foam diamond, porous foam shape diamond has larger surface roughness and specific surface area, and structure is refined, bonding agent is big to the hold of diamond when preparing instrument with it, during accurate grinding, surface porosity diamond tool has more cutting edges, self-sharpening is good, grinding stress disperses, grinding texture is careful；During grinding and polishing, cavernous foam diamond, which can form fritter and crush, to come off, so as to improve the self-sharpening of grinding tool, improve the scuffing situation that bulky grain during normal diamond grinding and polishing comes off to workpiece surface, thus be advantageous to improve grinding quality and grinding efficiency.
Description
Technical field
The present invention relates to a kind of preparation method of porous foam diamond, belong to superfine grinding and polishing technology field.
Background technology
With hard-core technology and high-end manufacturing development, superfine grinding and polishing technology turn into the heat of current research
Point.Synthetic diamond single crystal has very high hardness, toughness and good heat endurance as a kind of superhard refined abrasive,
Increasingly extensive application is obtained in the polishing of the surface of accurate grinding and accurate device.But due to Buddha's warrior attendant during the use of reality
Stone surface is smooth to be combined loosely between bonding agent, is come off too early during grinding-polishing, and abrasive particle bulky grain is crushed and made
Into the increased formation cut of the cutting-in of workpiece surface in the presence of load, pit equivalent damage, or crushed particles enter to be added
Cause the damage of workpiece or even workpiece is reprocessed or is scrapped in work area domain.
The content of the invention
During being used for synthetic diamond single crystal or micro mist as abrasive material exist due to diamond surface it is smooth with
Combined between bonding agent loosely, come off too early during grinding-polishing the defects of, the purpose of the present invention is to be to provide one kind
With loose structure, the preparation method of the big foam diamond of rough surface, and specific surface area；Prepared by this method porous
Foam diamond, in diamond class grinding tool, can significantly increase the combination between bonding agent and diamond as abrasive applications
Power, in grinding tool process, bonding agent is big to diamond hold, and the foam diamond of loose structure will be formed it is small
Block crushes, and improves the self-sharpening of grinding tool, reduces stress concentration, improves bulky grain during normal diamond grinding and polishing and comes off pair
The scuffing situation of workpiece surface, so as to improve the surface quality of workpiece to be machined and processing efficiency.
In order to realize above-mentioned technical purpose, the invention provides a kind of preparation method of porous foam diamond, this method
It is after being well mixed diamond particles and/or powder with metal dust, to be placed in protective atmosphere, in 900~1000 DEG C of temperature
Degree is lower to be calcined, and product of roasting produces porous foam diamond after removing metal；Metal is coloured by iron group metal and non-iron group
Metal forms.
Technical scheme corrodes diamond using graphitizing of the iron group metal to diamond first, to gold
The pore-creating of hard rock surface, form loose structure；Make simultaneously using property between non-iron group non-ferrous metal and iron group metal element is complementary
With the defects of to improve iron group metal, making it have the effect of preferably corrosion diamond.
The manufacture method of porous foam diamond of the present invention also includes following preferred scheme：
The mass ratio of preferable scheme, diamond particles and/or powder and metal dust is 1:1~1:3.
More preferably scheme, iron group metal and the mass percent composition of non-iron group non-ferrous metal are 60~90%：10~
40%.
Further preferred scheme, iron group metal are at least one of iron, cobalt, nickel.
Further preferred scheme, non-iron group non-ferrous metal are at least one of aluminium, copper, tin.
Preferable scheme, roasting time are 60~120min.
The granularity of preferable scheme, diamond particles and/or powder is 3~200 μm.
Preferable scheme, diamond are artificial single-crystal diamond.
Preferable scheme, the method for removing metal are pickling or electrolysis.
Preferable scheme, comprises the following steps：
(1) after being well mixed artificial single crystal's diamond particles and/or micro mist with metal dust, it is placed in crucible；Wherein,
The quality of metal dust is 1~3 times of artificial single-crystal diamond quality；Metal is by iron group metal and non-iron group non-ferrous metal group
Into.
(2) crucible is placed in tube furnace, after being passed through protective gas into the tube furnace, then with 3~5 DEG C/
Min heating rate is warming up to 900~1000 DEG C, is calcined 60~120min, furnace cooling；
(3) by the removal metal of electrolysis or pickling, that is, porous foam diamond is obtained through (2) roasting products therefrom.
Compared with the prior art, the beneficial effect that technical scheme is brought：
1st, porous foam diamond prepared by method of the invention, has loose structure, can significantly improve the table of diamond
Surface roughness and specific surface area.
2nd, porous foam diamond prepared by method of the invention is due to its rough surface and loose structure, for skiving work
Tool, can dramatically increase the cohesive force between bonding agent and diamond, increase the hold of bonding agent in grinding process to diamond,
Reduce grinding process in diamond because come off and caused by waste.
3rd, method of the invention is diamond surface is produced vesicular texture, is prepared into having more during instrument
Cutting edge so that stress disperses, and makes grinding texture more careful, effectively improves grinding quality.
4th, porous foam diamond prepared by method of the invention, porous foam-like diamond can shape in grinding process
Come off into fritter is broken, increase the self-sharpening of diamond tool, improve grinding efficiency.
5th, compared with the diamond used in existing grinding and polishing, the treated diamond surface fritter of the present invention is broken de-
Fall to improve the broken scuffing situation to workpiece surface of diamond bulky grain during existing grinding and polishing, improve grinding quality and
Efficiency.
6th, by the treated diamond fabrication of the present invention into being applied to the differences such as ceramics, resin, metal during grinding tool
Bonding agent, there is universality.
7th, the present invention prepare porous foam diamond technological process it is simple, it is not high to equipment requirement, disclosure satisfy that industry
The requirement of metaplasia production.
Brief description of the drawings
【Fig. 1】For the process chart of foam diamond of the present invention processing；
【Fig. 2】For the scanning electron microscope (SEM) photograph on before processing artificial single crystal's diadust surface；
【Fig. 3】For artificial single crystal diadust of the embodiment 1 by metal mixed powder (cobalt powder, nickel powder and aluminium powder) processing
Scanning electron microscopic picture；
【Fig. 4】For artificial single crystal diadust of the embodiment 2 by metal mixed powder (iron powder, nickel powder and copper powder) processing
Scanning electron microscopic picture；
【Fig. 5】For artificial single crystal diadust of the embodiment 3 by metal mixed powder (iron powder, cobalt powder and glass putty) processing
Scanning electron microscopic picture；
【Fig. 6】For artificial single crystal diadust scanning electron microscopic picture of the comparative example 1 by metal cobalt powder processing.
Embodiment
Present invention is described in further detail with reference to specific embodiment, without limiting present invention power
The claimed scope of profit.
Embodiment 1
By artificial single crystal's diadust (granularity is 20~25 μm) and metal mixed powder (cobalt powder, nickel powder and aluminium powder quality
Than for 6:1:1) with mass ratio 1:1 is mixed, and is put into after well mixed in crucible.
Then crucible is placed in tube furnace, while protective gas is passed through in tube furnace, and with 3 DEG C/min speed
It is warming up to 900 DEG C of roasting 60min, furnace cooling.
Product electrolysis after roasting or the method for pickling are handled, diamond separated with metal dust, you can obtain
Porous foam diamond.
Embodiment 2
By artificial single crystal's diadust (granularity is 40~60 μm) and metal mixed powder (iron powder, nickel powder and copper powder quality
Than for 7:1:1) with mass ratio 1:2.5 are mixed, and are put into after well mixed in crucible.
Then crucible is placed in tube furnace, while protective gas is passed through in tube furnace, and with 3 DEG C/min speed
It is warming up to 950 DEG C of roasting 60min, furnace cooling.
Product electrolysis after roasting or the method for pickling are handled, diamond separated with metal dust, you can obtain
Porous foam diamond.
Embodiment 3
By synthetic diamond micropowder (granularity is 40~60 μm) and metal mixed powder (iron powder, cobalt powder and glass putty mass ratio 8:
1:1) with mass ratio 1:3 is well mixed, is put into after well mixed in crucible.
Then crucible is placed in tube furnace, while protective gas is passed through in tube furnace, and with 3 DEG C/min heating
Speed is warming up to 1000 DEG C of roasting 120min, furnace cooling.
Product electrolysis after roasting or the method for pickling are handled, diamond separated with metal dust, you can obtain
Porous foam diamond.
Comparative example 1
By synthetic diamond micropowder (granularity is 40~60 μm) and metal cobalt powder with mass ratio 1:3 is well mixed, and mixing is equal
It is put into after even in crucible.
Then crucible is placed in tube furnace, while protective gas is passed through in tube furnace, and with 3 DEG C/min heating
Speed is warming up to 1000 DEG C of roasting 120min, furnace cooling.
Product electrolysis after roasting or the method for pickling are handled, diamond separated with metal dust, you can obtain
Porous foam diamond.
The surface topography of untreated diadust is as shown in Fig. 2 Fig. 3, Fig. 4, Fig. 5, Fig. 6 are to be handled by foamed
The surface topography map for the synthetic diamond micropowder crossed.The diadust surface treated with Fig. 2 comparison diagrams 3 by metal dust
There is cavernous structure appearance, because treatment temperature is low, the area in hole depth and hole is all smaller.In Fig. 4, diadust surface holes
Substantially it is evenly distributed.The distribution of diadust surface holes is more uniform in Fig. 5, and hole depth increase, surface shows loose more
The pumiceous texture in hole.Contrasted with Fig. 5, Fig. 6 is by the not existing obvious poroid knot in metal cobalt powder processing diadust surface
Structure occurs.To sum up, only handled with iron group metal, diamond surface does not occur porous foam shape structure.By iron group metal and non-
After the processing of iron group non-ferrous metal mixed-powder, it is in loose porous foam-like diamond that can obtain surface.This cavernous foam
Structure, diamond surface roughness can be increased, so as to improve hold of the bonding agent to diamond.Surface blocks in foaming structure
Come off, disperse grinding stress, grinding texture is careful, for improve diamond tool self-sharpening, improve grinding-polishing during
Scuffing situation of the bulky grain broken material to workpiece surface, improves grinding quality and grinding efficiency prepares.
Claims (6)
- A kind of 1. preparation method of porous foam diamond, it is characterised in that：By diamond particles and/or powder and metal dust After well mixed, it is placed in protective atmosphere, in 900~1000 DEG C of roasting temperatures, product of roasting is after removing metal, i.e., Obtain porous foam diamond；Described metal is made up of iron group metal and non-iron group non-ferrous metal；Iron group metal and the mass percent composition of non-iron group non-ferrous metal are 60~90%:10~40%；Described iron group metal is at least one of iron, cobalt, nickel；Described non-iron group non-ferrous metal is aluminium, copper, in tin extremely Few one kind.
- 2. the preparation method of porous foam diamond according to claim 1, it is characterised in that：Described diamond particles And/or the mass ratio of powder and metal dust is 1:1~1:3.
- 3. the preparation method of porous foam diamond according to claim 1, it is characterised in that：Roasting time be 60~ 120min。
- 4. the preparation method of porous foam diamond according to claim 1, it is characterised in that：Described diamond particles And/or the granularity of powder is 3~200 μm；Described diamond is artificial single-crystal diamond.
- 5. the preparation method of porous foam diamond according to claim 1, it is characterised in that：Remove metal method be Pickling or electrolysis.
- 6. the preparation method of the porous foam diamond according to any one of Claims 1 to 5, it is characterised in that：Including with Lower step：(1) after being well mixed artificial single crystal's diamond particles and/or micro mist with metal dust, it is placed in crucible；Wherein, the quality of metal dust is 1~3 times of artificial single-crystal diamond quality；Metal is had by iron group metal and non-iron group Non-ferrous metal forms；(2) crucible is placed in tube furnace, after being passed through protective gas into the tube furnace, then with 3~5 DEG C/min's Heating rate is warming up to 900~1000 DEG C, is calcined 60~120min, furnace cooling；(3) by the removal metal of electrolysis or pickling, that is, porous foam diamond is obtained through (2) roasting products therefrom.
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| CN201610040477.1A CN105731449B (en) | 2016-01-21 | 2016-01-21 | A kind of preparation method of porous foam diamond |
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| CN201610040477.1A CN105731449B (en) | 2016-01-21 | 2016-01-21 | A kind of preparation method of porous foam diamond |
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| CN105731449B true CN105731449B (en) | 2018-01-02 |
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| CN109016197A (en) * | 2018-07-18 | 2018-12-18 | 郑州磨料磨具磨削研究所有限公司 | A kind of novel electroplating diamond fretsaw |
| CN109465759A (en) * | 2018-12-27 | 2019-03-15 | 中国有色桂林矿产地质研究院有限公司 | A kind of diamond intensified strong type ceramic bond super-hard abrasive tool of foam and preparation method thereof |
| CN111659317A (en) * | 2020-06-06 | 2020-09-15 | 南京惠诚工具制造有限公司 | Preparation method of self-sharpening superhard material accumulated abrasive |
| CN113060725A (en) * | 2021-04-01 | 2021-07-02 | 河南博锐新材料有限公司 | Diamond surface texturing treatment method |
| CN114958303A (en) * | 2022-06-20 | 2022-08-30 | 柘城惠丰钻石科技股份有限公司 | Preparation method of diamond grinding fluid for thinning zirconia ceramic mobile phone back plate |
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| DE3625743A1 (en) * | 1986-07-30 | 1988-02-11 | Winter & Sohn Ernst | METHOD FOR MACHINING DIAMOND GRAINS |
| JP4756572B2 (en) * | 2004-12-28 | 2011-08-24 | 国立大学法人信州大学 | Porous diamond layer, method for producing porous diamond particles, and electrochemical electrode using the same |
| CN102149655B (en) * | 2008-07-17 | 2013-10-23 | 电气化学工业株式会社 | Manufacturing method of aluminum-diamond composite |
| GB201017924D0 (en) * | 2010-10-22 | 2010-12-01 | Element Six Production Pty Ltd | Polycrystalline diamond material |
| CN103589895B (en) * | 2013-11-21 | 2015-10-21 | 北京科技大学 | A kind of low cost prepares the method for high-precision diamond/Cu composite material parts |
| CN103589887B (en) * | 2013-11-21 | 2015-09-23 | 北京科技大学 | A kind of low cost prepares the method for high-precision diamond/Al composite material parts |
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Effective date of registration: 20190529 Address after: 476200 No. 10 Beihai Road, Zhecheng High-tech Zone, Shangqiu City, Henan Province Patentee after: ZHECHENG HUIFENG DIAMOND TECHNOLOGY CO.,LTD. Address before: Yuelu District City, Hunan province 410082 Changsha Lushan Road No. 2 Patentee before: Hunan University |
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Address after: 476200 No. 10 Beihai Road, Zhecheng High-tech Zone, Shangqiu City, Henan Province Patentee after: Huifeng Dimond Co.,Ltd. Address before: 476200 No. 10 Beihai Road, Zhecheng High-tech Zone, Shangqiu City, Henan Province Patentee before: ZHECHENG HUIFENG DIAMOND TECHNOLOGY CO.,LTD. |