CN109692969A - A kind of preparation method of hypoxemia superfine spherical cobalt powder - Google Patents
A kind of preparation method of hypoxemia superfine spherical cobalt powder Download PDFInfo
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- CN109692969A CN109692969A CN201910158420.5A CN201910158420A CN109692969A CN 109692969 A CN109692969 A CN 109692969A CN 201910158420 A CN201910158420 A CN 201910158420A CN 109692969 A CN109692969 A CN 109692969A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
- B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
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Abstract
The present invention discloses a kind of preparation method of hypoxemia superfine spherical cobalt powder, specific step is as follows: (1) using presoma cobalt carbonate as raw material, hydrogen is passed through using steel belt type reducing furnace to be restored, reduction temperature is 350~400 DEG C, recovery time 5~6 hours, layer thickness of the raw material on steel band is 2.5~3.0cm, and hydrogen flowing quantity is 8~10m3/h；(2) the blocky sponge cobalt obtained after reduction is then used into carbon dioxide gas-filled protective, reuses nitrogen sealing and circulating airslide disintegrating mill and carry out broken classification and obtains powdered cobalt powder；(3) last that powdered cobalt powder is subjected to mixing conjunction batch again, obtain finished product hypoxemia superfine spherical cobalt powder.The hypoxemia superfine spherical cobalt powder Fisher particle size that the present invention produces is thinner, cobalt powder Fisher particle size is between 0.50~0.70 μm, and microscopic appearance is spherical shape, while oxygen content is low, oxygen content may be used at high-end sintered carbide tools alloy product and high temperature alloy product less than 0.60%.
Description
Technical field
The present invention relates to cobalt powder technical field, the preparation method of specifically a kind of hypoxemia superfine spherical cobalt powder.
Background technique
The Fisher particle size minimum of most cobalt powders can accomplish 0.80~0.90 μm or so currently on the market, and Fisher particle size is again
Reducing down will have the shortcomings that oxygen content is higher, without using in high-end superhard alloy product and high temperature alloy product.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of systems of hypoxemia superfine spherical cobalt powder
Preparation Method.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of preparation method of hypoxemia superfine spherical cobalt powder,
Its innovative point is, the specific steps are as follows:
(1) using presoma cobalt carbonate as raw material, hydrogen being passed through using steel belt type reducing furnace and is restored, reduction temperature is
350~400 DEG C, the recovery time 5~6 hours, layer thickness of the raw material on steel band be 2.5~3.0cm, hydrogen flowing quantity be 8~
10m3/h；
(2) the blocky sponge cobalt obtained after reduction is then used into carbon dioxide gas-filled protective, reuses that nitrogen is closed to follow
Ring airslide disintegrating mill carries out broken classification and obtains powdered cobalt powder；
(3) last that powdered cobalt powder is subjected to mixing conjunction batch again, obtain finished product hypoxemia superfine spherical cobalt powder.
The invention has the following beneficial effects:
The hypoxemia superfine spherical cobalt powder Fisher particle size that the present invention produces is thinner, and cobalt powder Fisher particle size is at 0.50~0.70 μm
Between, microscopic appearance is spherical shape, while oxygen content is low, and oxygen content may be used at high-end sintered carbide tools alloy less than 0.60%
Product and high temperature alloy product.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are only to explain the present invention, not
For limiting the present invention.
Embodiment 1
A kind of preparation method of hypoxemia superfine spherical cobalt powder, the specific steps are as follows:
(1) using presoma cobalt carbonate as raw material, hydrogen being passed through using steel belt type reducing furnace and is restored, reduction temperature is
350 DEG C, the recovery time 5 hours, layer thickness of the raw material on steel band was 2.5cm, hydrogen flowing quantity 8m3/h；
(2) the blocky sponge cobalt obtained after reduction is then used into carbon dioxide gas-filled protective, reuses that nitrogen is closed to follow
Ring airslide disintegrating mill carries out broken classification and obtains powdered cobalt powder；
(3) last that powdered cobalt powder is subjected to mixing conjunction batch again, obtain finished product hypoxemia superfine spherical cobalt powder.
Embodiment 2
A kind of preparation method of iron cobalt-copper alloy powder, the specific steps are as follows:
(1) using presoma cobalt carbonate as raw material, hydrogen being passed through using steel belt type reducing furnace and is restored, reduction temperature is
380 DEG C, the recovery time 5.5 hours, layer thickness of the raw material on steel band was 2.8cm, hydrogen flowing quantity 9m3/h；
(2) the blocky sponge cobalt obtained after reduction is then used into carbon dioxide gas-filled protective, reuses that nitrogen is closed to follow
Ring airslide disintegrating mill carries out broken classification and obtains powdered cobalt powder；
(3) last that powdered cobalt powder is subjected to mixing conjunction batch again, obtain finished product hypoxemia superfine spherical cobalt powder.
Embodiment 3
(1) using presoma cobalt carbonate as raw material, hydrogen being passed through using steel belt type reducing furnace and is restored, reduction temperature is
400 DEG C, the recovery time 6 hours, layer thickness of the raw material on steel band was 3.0cm, hydrogen flowing quantity 10m3/h；
(2) the blocky sponge cobalt obtained after reduction is then used into carbon dioxide gas-filled protective, reuses that nitrogen is closed to follow
Ring airslide disintegrating mill carries out broken classification and obtains powdered cobalt powder；
(3) last that powdered cobalt powder is subjected to mixing conjunction batch again, obtain finished product hypoxemia superfine spherical cobalt powder.
Table one
| Powder Fisher particle size μm | Oxygen content % | |
| Embodiment 1 | 0.55 | 0.50 |
| Embodiment 2 | 0.67 | 0.48 |
| Embodiment 3 | 0.59 | 0.45 |
As can be seen from the above table, present invention iron cobalt-copper alloy powder produced has preferable powder Fisher particle size and oxygen contains
Amount, and quality is better than some iron cobalt-copper alloy powder in the market.
The above is only used to illustrate the technical scheme of the present invention and not to limit it, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (1)
1. a kind of preparation method of hypoxemia superfine spherical cobalt powder, which is characterized in that specific step is as follows:
(1) using presoma cobalt carbonate as raw material, hydrogen is passed through using steel belt type reducing furnace and is restored, reduction temperature 350
~400 DEG C, the recovery time 5~6 hours, layer thickness of the raw material on steel band be 2.5~3.0cm, hydrogen flowing quantity be 8~
10m3/h；
(2) the blocky sponge cobalt obtained after reduction is then used into carbon dioxide gas-filled protective, reuses nitrogen sealing and circulating gas
Stream pulverizer carries out broken classification and obtains powdered cobalt powder；
(3) last that powdered cobalt powder is subjected to mixing conjunction batch again, obtain finished product hypoxemia superfine spherical cobalt powder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910158420.5A CN109692969A (en) | 2019-03-04 | 2019-03-04 | A kind of preparation method of hypoxemia superfine spherical cobalt powder |
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| CN201910158420.5A CN109692969A (en) | 2019-03-04 | 2019-03-04 | A kind of preparation method of hypoxemia superfine spherical cobalt powder |
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| CN109692969A true CN109692969A (en) | 2019-04-30 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773750A (en) * | 2019-12-16 | 2020-02-11 | 重庆优钛新材料科技有限公司 | Method and device for preparing high-purity superfine metal powder |
| CN111702184A (en) * | 2020-06-30 | 2020-09-25 | 荆门市格林美新材料有限公司 | Preparation method of large FSSS cobalt powder |
| CN112195350A (en) * | 2020-08-19 | 2021-01-08 | 衢州华友钴新材料有限公司 | Preparation method of coarse particle cobalt cluster |
| CN112355317A (en) * | 2020-10-19 | 2021-02-12 | 衢州华友钴新材料有限公司 | Preparation method of superfine spherical cobalt powder |
| CN112846213A (en) * | 2021-01-05 | 2021-05-28 | 有研工程技术研究院有限公司 | Preparation method of low-oxygen high-dispersion nano spherical cobalt powder |
| CN113182526A (en) * | 2021-04-22 | 2021-07-30 | 江苏萌达新材料科技有限公司 | Preparation method of reduced nickel diffusion powder |
| CN113199032A (en) * | 2021-04-22 | 2021-08-03 | 江苏萌达新材料科技有限公司 | Preparation method of cobalt powder with low apparent density |
| CN115488346A (en) * | 2022-08-25 | 2022-12-20 | 荆门市格林美新材料有限公司 | Cobalt powder for tungsten-based high-density alloy, preparation method and application |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3994716A (en) * | 1973-03-30 | 1976-11-30 | Sherritt Gordon Mines Limited | Process for the production of finely divided cobalt powders |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773750A (en) * | 2019-12-16 | 2020-02-11 | 重庆优钛新材料科技有限公司 | Method and device for preparing high-purity superfine metal powder |
| CN111702184A (en) * | 2020-06-30 | 2020-09-25 | 荆门市格林美新材料有限公司 | Preparation method of large FSSS cobalt powder |
| CN112195350A (en) * | 2020-08-19 | 2021-01-08 | 衢州华友钴新材料有限公司 | Preparation method of coarse particle cobalt cluster |
| CN112355317A (en) * | 2020-10-19 | 2021-02-12 | 衢州华友钴新材料有限公司 | Preparation method of superfine spherical cobalt powder |
| CN112846213A (en) * | 2021-01-05 | 2021-05-28 | 有研工程技术研究院有限公司 | Preparation method of low-oxygen high-dispersion nano spherical cobalt powder |
| CN113182526A (en) * | 2021-04-22 | 2021-07-30 | 江苏萌达新材料科技有限公司 | Preparation method of reduced nickel diffusion powder |
| CN113199032A (en) * | 2021-04-22 | 2021-08-03 | 江苏萌达新材料科技有限公司 | Preparation method of cobalt powder with low apparent density |
| CN115488346A (en) * | 2022-08-25 | 2022-12-20 | 荆门市格林美新材料有限公司 | Cobalt powder for tungsten-based high-density alloy, preparation method and application |
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Application publication date: 20190430 |