CN105597628B - A kind of production method of polycrystalline diamond micro powder granule regrowth - Google Patents
A kind of production method of polycrystalline diamond micro powder granule regrowth Download PDFInfo
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- CN105597628B CN105597628B CN201510629787.2A CN201510629787A CN105597628B CN 105597628 B CN105597628 B CN 105597628B CN 201510629787 A CN201510629787 A CN 201510629787A CN 105597628 B CN105597628 B CN 105597628B
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Abstract
The invention discloses a kind of production methods of polycrystalline diamond micro powder granule regrowth, comprising the following steps: forms clad on polycrystalline diamond micro powder granule surface, which includes iron or/and nickel or/and silicon；The polycrystalline diamond micro powder granule and carbon, catalyst for forming clad are mixed and made into compacted granules stick；Compacted granules stick is placed under the high-temperature and high-pressure conditions to form diamond, by certain time, the certain time is enough to form carbon and forms the polycrystalline diamond infiltration growth of clad；The polycrystalline diamond micro powder granule that granularity becomes larger can be obtained in cleaning removal of impurities.Production method of the invention can make polycrystalline diamond micro powder granule change from small to big, and the tiny micro mist reproduction that overproduction is overstock uses, and need to be fabricated to varigrained diadust according to client, greatly reduce the cost and investment manufactured again.
Description
Technical field
The present invention relates to the production method of superhard material more particularly to a kind of systems of polycrystalline diamond micro powder granule regrowth
Make method.
Background technique
Polycrystalline diamond micro powder granule have the characteristics that isotropism, without dissociation face, not only have impayable hardness,
Intensity and toughness can be peeled off in grinding and polishing process and be shown new micro- automatically in due course there are also fabulous " self-sharpening "
Cutting edge is seen, the grinding and polishing of precise part and craftwork are widely used in.It, can be because of client couple in generating manufacturing process
Bulky grain can be broken for little particle by the difference of each Grained Requirements amount, but lesser such as 2 μm of fines stock below
Seriously, the unnecessary cost waste of enterprise is caused.
Summary of the invention
The invention aims to provide a kind of production method of polycrystalline diamond micro powder granule regrowth.
In order to achieve the above objectives, the present invention is implemented according to following technical scheme:
A kind of production method of polycrystalline diamond micro powder granule regrowth, comprising the following steps:
1) clad, is formed on polycrystalline diamond micro powder granule surface, which includes iron or/and nickel or/and silicon；
2), the polycrystalline diamond micro powder granule of formation clad and carbon and catalyst are mixed and made into compacted granules stick；
3), compacted granules stick is placed under the high-temperature and high-pressure conditions to form diamond, by certain time, described is certain
Time is enough to form carbon and forms the polycrystalline diamond infiltration growth of clad；
4) it, by the compacted granules stick jaw crushing crusher machine after synthesis, then uses chloroazotic acid high-temperature boiling 20 minutes, then with pure
Water purification is rinsed 4-5 times, and unreacted carbon and other metal impurities are removed completely, the polycrystalline diamond that granularity becomes larger can be obtained
Stone micro powder granule.
Condition of high voltage in the step 3 is synthesis pressure 90MPa, dwell time 8min,
Hot conditions in the step 3 be 5-6min heating time, heating temperature is 800-1470 DEG C.
Further, as a preferred embodiment, the catalyst includes iron, nickel, cobalt, manganese, chromium and their alloy.
Further, as a preferred embodiment, the catalyst includes alkali or alkaline-earth metal.
Further, as a preferred embodiment, the optimal selection of the catalyst is the alloy of iron and nickel.
Further, as a preferred embodiment, the polycrystalline diamond micro powder granule is having a size of 2 μm or less.
Compared with prior art, production method of the invention can make polycrystalline diamond micro powder granule change from small to big, and will give birth to
It produces superfluous overstocked tiny micro mist reproduction to use, needs to be fabricated to varigrained diadust according to client, drop significantly
The low cost and investment manufactured again.
Detailed description of the invention
Fig. 1 is polycrystalline diamond micro powder granule electron microscope before synthesis of the invention.
Fig. 2 is polycrystalline diamond micro powder granule electron microscope after synthesis of the invention.
Fig. 3 is process diagram of the invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the invention will be further described, in the illustrative examples of the invention
And explanation is used to explain the present invention, but not as a limitation of the invention.
Embodiment 1
A kind of production method of polycrystalline diamond micro powder granule regrowth, comprising the following steps:
1) clad, is formed on polycrystalline diamond micro powder granule surface, which is iron；
2) it, forms the polycrystalline diamond micro powder granule of clad and carbon, iron and nickel alloy catalyst is mixed and made into compacting
Particle stick；
3), compacted granules stick is placed under the high-temperature and high-pressure conditions to form diamond, synthesis pressure 90MPa, the dwell time
8min, heating time 5-6min, heating temperature are 800-1470 DEG C.The certain time is enough to form carbon and be formed to wrap
The polycrystalline diamond of coating permeates growth；
4) it, by the compacted granules stick jaw crushing crusher machine after synthesis, then uses chloroazotic acid high-temperature boiling 20 minutes, then with pure
Water purification is rinsed 4-5 times, and unreacted carbon and other metal impurities are removed completely, the polycrystalline diamond that granularity becomes larger can be obtained
Stone micro powder granule.Polycrystalline diamond micro powder granule is having a size of 2 μm or less.
Embodiment 2
A kind of production method of polycrystalline diamond micro powder granule regrowth, comprising the following steps:
1) clad, is formed on polycrystalline diamond micro powder granule surface, which is nickel；
2) it, forms the polycrystalline diamond micro powder granule of clad and carbon, cobalt and nickel alloy catalyst is mixed and made into compacting
Particle stick；
3), compacted granules stick is placed under the high-temperature and high-pressure conditions to form diamond, synthesis pressure 90MPa, the dwell time
8min, heating time 5-6min, heating temperature are 800-1470 DEG C.The certain time is enough to form carbon and be formed to wrap
The polycrystalline diamond of coating permeates growth；
4) it, by the compacted granules stick jaw crushing crusher machine after synthesis, then uses chloroazotic acid high-temperature boiling 20 minutes, then with pure
Water purification is rinsed 4-5 times, and unreacted carbon and other metal impurities are removed completely, the polycrystalline diamond that granularity becomes larger can be obtained
Stone micro powder granule.Polycrystalline diamond micro powder granule is having a size of 2 μm or less.
Embodiment 3
A kind of production method of polycrystalline diamond micro powder granule regrowth, comprising the following steps:
1) clad, is formed on polycrystalline diamond micro powder granule surface, which is iron；
2) it, forms the polycrystalline diamond micro powder granule of clad and carbon, manganese and evanohm catalyst is mixed and made into compacting
Particle stick；
3), compacted granules stick is placed under the high-temperature and high-pressure conditions to form diamond, synthesis pressure 90MPa, the dwell time
8min, heating time 5-6min, heating temperature are 800-1470 DEG C.The certain time is enough to form carbon and be formed to wrap
The polycrystalline diamond of coating permeates growth；
4) it, by the compacted granules stick jaw crushing crusher machine after synthesis, then uses chloroazotic acid high-temperature boiling 20 minutes, then with pure
Water purification is rinsed 4-5 times, and unreacted carbon and other metal impurities are removed completely, the polycrystalline diamond that granularity becomes larger can be obtained
Stone micro powder granule.Polycrystalline diamond micro powder granule is having a size of 2 μm or less.
Fig. 1 is polycrystalline diamond micro powder granule electron microscope before synthesis of the invention, and Fig. 2 is polycrystalline gold after synthesis of the invention
Hard rock micro powder granule electron microscope.
The limitation that technical solution of the present invention is not limited to the above specific embodiments, it is all to do according to the technique and scheme of the present invention
Technology deformation out, falls within the scope of protection of the present invention.
Claims (5)
1. a kind of production method of polycrystalline diamond micro powder granule regrowth, it is characterised in that: the following steps are included:
1) clad, is formed on polycrystalline diamond micro powder granule surface, which includes iron or/and nickel or/and silicon；
2), the polycrystalline diamond micro powder granule of formation clad and carbon and catalyst are mixed and made into compacted granules stick；
3), compacted granules stick is placed under the high-temperature and high-pressure conditions to form diamond, by certain time, the certain time
It is enough to form carbon and forms the polycrystalline diamond infiltration growth of clad；
4) it, by the compacted granules stick jaw crushing crusher machine after synthesis, then uses chloroazotic acid high-temperature boiling 20 minutes, then use pure water
It rinses 4-5 times, unreacted carbon and other metal impurities is removed completely, it is micro- that the polycrystalline diamond that granularity becomes larger can be obtained
Powder particles；
Condition of high voltage in the step 3 is synthesis pressure 90MPa, dwell time 8min；High temperature item in the step 3
Part be 5-6min heating time, heating temperature is 800-1470 DEG C.
2. the production method of polycrystalline diamond micro powder granule regrowth according to claim 1, it is characterised in that: described
Catalyst includes iron, nickel, cobalt, manganese, chromium and their alloy.
3. the production method of polycrystalline diamond micro powder granule regrowth according to claim 1, it is characterised in that: described
Catalyst includes alkali or alkaline-earth metal.
4. the production method of polycrystalline diamond micro powder granule regrowth according to claim 1 or 2, it is characterised in that: institute
The catalyst stated is the alloy of iron and nickel.
5. the production method of polycrystalline diamond micro powder granule regrowth according to claim 1, it is characterised in that: described
Polycrystalline diamond micro powder granule is having a size of 2 μm or less.
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| CN109499481B (en) * | 2018-12-13 | 2021-10-29 | 河南飞孟金刚石工业有限公司 | Method for manufacturing mother powder material for optimizing grade and particle size distribution of artificial diamond |
| CN117425115B (en) * | 2023-12-19 | 2024-02-27 | 北京沃尔德金刚石工具股份有限公司 | Multilayer diamond diaphragm and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012298802A1 (en) * | 2011-08-23 | 2013-10-31 | Smith International, Inc. | Fine polycrystalline diamond compact with a grain growth inhibitor layer between diamond and substrate |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012298802A1 (en) * | 2011-08-23 | 2013-10-31 | Smith International, Inc. | Fine polycrystalline diamond compact with a grain growth inhibitor layer between diamond and substrate |
| CN103842067A (en) * | 2011-08-23 | 2014-06-04 | 六号元素有限公司 | Fine polycrystalline diamond compact with a grain growth inhibitor layer between diamond and substrate |
Non-Patent Citations (1)
| Title |
|---|
| "用铁基烧结助剂制备金刚石聚晶的研究";马红安;《金刚石与磨料磨具工程》;20050630(第147期);第2节至第3节 |
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Address after: 454763 Henan FeiMeng Diamond Industry Co., Ltd., Qianyao village, Chengbo Town, Mengzhou City, Jiaozuo City, Henan Province Patentee after: Henan FeiMeng diamond Co.,Ltd. Address before: 454763 Henan FeiMeng Diamond Industry Co., Ltd., Qianyao village, Chengbo Town, Mengzhou City, Jiaozuo City, Henan Province Patentee before: Henan Famous Diamond Industrial Co.,Ltd. |
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