CN204396886U - For the preparation facilities of spherical rare metal powder - Google Patents
For the preparation facilities of spherical rare metal powder Download PDFInfo
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- CN204396886U CN204396886U CN201520069209.3U CN201520069209U CN204396886U CN 204396886 U CN204396886 U CN 204396886U CN 201520069209 U CN201520069209 U CN 201520069209U CN 204396886 U CN204396886 U CN 204396886U
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Abstract
A kind of preparation facilities for spherical rare metal powder is provided, feed chamber lower end is communicated with spray chamber upper end, spray chamber lower end is communicated with receipts powder tank arrival end, vacuum pump set is communicated with spray chamber upper lateral part, exhaust dust-removing tank is communicated with spray chamber following side, be provided with wire feeding disc and wire feeder in feed chamber, spray chamber top is arranged with plasma gun I and plasma gun II, and the parcel on wire feeding disc is placed between plasma gun I and plasma gun II continuously by wire feeder.The utility model directly bombards rare metal silk material by supersonic speed plasma beam, make the rapid melting of metal wire material, and atomization is condensed into powder, due to plasma beam extreme temperatures and its energy density is very large, so the rare metal powder type adopting this device to prepare is extensive; In addition the melting sources of this device and atomization process are implemented under inert atmosphere protection, can effectively avoid some high activity rare metals as titanium or titanium alloy powder contamination, ensure the high-purity of prepared powder.
Description
Technical field
The utility model belongs to powder metallurgical technology, is specifically related to a kind of preparation facilities for spherical rare metal powder.
Background technology
Flourish along with technology such as thermal spraying, injection moulding, the manufactures of increasing material, the demand of correlative technology field to its powder stock presents the new situation that supply falls short of demand.High-quality spherical rare metal powder is the necessary important source material of these production technical field, and powder production counts for much in whole production flow process, the important foundation of its powder raw material its end product quality especially.At present, the technology of the spherical rare metal powder of the high-quality that is produced on a large scale mainly contains plasma rotating electrode powder-making technique and inert gas atomizer technology.Plasma rotating electrode powder-making technique is with high-temperature plasma line melting High Rotation Speed rare metal bar front end, and rely on the dispersion of the centrifugal force of bar High Rotation Speed to throw away molten melt drop, molten melt drop relies on surface tension to be condensed into spherical powder again.Due to the plasma gun power limited applied at present, and the raw material adopted mostly is the rare metal bar of diameter at 50-80mm, so existing plasma rotating electrode powder-making technique can carry out and titanium alloy, the rotary-atomizing powder process of nickel-base alloy and cobalt-base alloys, but cannot to more dystectic niobium, molybdenum, tungsten Base Metal and alloy carry out rotary-atomizing powder process, in addition, in plasma rotating electrode powder-making technique, the rotary speed of metal bar material is generally within 20000 revs/min, the centrifugal force of higher metal drop aerosol dispersion cannot be provided, so now thicker with the general granularity of spherical rare metal powder prepared by this technology, as titanium or titanium alloy powder, powder overwhelming majority granularity prepared by its plasma rotating electrode is all between 100 ~ 250 μm, more the powder yield of small particle diameter is lower.For inert gas atomizer technology, because some rare metals present activity extremely in high melt process, so fusing rare metal raw material mostly in a vacuum or inert atmosphere, and adopt the induction melting mode of water jacketed copper crucible, or adopt the direct induction melting of metal bar material; The mode energy consumption of current employing induction melting is higher, and mostly fusing such as the rare metal such as titanium or titanium alloy, nickel-base alloy carries out powder by atomization, also fusing cannot be carried out and powder by atomization for more dystectic niobium, molybdenum, tungsten Base Metal and alloy, above-mentioned defect, constrain the application of spherical powder in more areas of molybdenum, tungsten Base Metal and alloy, be therefore necessary to propose to improve.
Utility model content
The technical problem that the utility model solves: a kind of preparation facilities for spherical rare metal powder is provided, rare metal silk material is directly bombarded by supersonic speed plasma beam, make the rapid melting of metal wire material, and atomization is condensed into powder, due to plasma beam extreme temperatures and its energy density is very large, so the rare metal powder type adopting this device to prepare is extensive; In addition the melting sources of this device and atomization process are implemented under inert atmosphere protection, can effectively avoid some high activity rare metals as titanium or titanium alloy powder contamination, ensure the high-purity of prepared powder.
The technical solution adopted in the utility model: for the preparation facilities of spherical rare metal powder, there is feed chamber, described feed chamber lower end is communicated with spray chamber upper end, described spray chamber lower end is communicated with receipts powder tank arrival end, vacuum pump set is communicated with spray chamber upper lateral part, exhaust dust-removing tank is communicated with spray chamber following side, wherein, wire feeding disc and wire feeder is provided with in described feed chamber, spray chamber top is arranged with plasma gun I and plasma gun II, and the parcel on described wire feeding disc is placed between plasma gun I and plasma gun II continuously by wire feeder.
Wherein, described plasma gun I and plasma gun II are the supersonic speed plasma gun of outfit Laval nozzle and are non-diverting camber, and all in 20-40, ° angle is arranged with vertical direction for plasma gun I and plasma gun II.
Wherein, described plasma gun I and plasma gun II all adopt high-purity argon gas as source of the gas.
The utility model advantage compared with prior art:
1, atomization rare metal silk material is directly bombarded by supersonic speed plasma beam, make the rapid melting of a material, and atomization is condensed into powder, due to plasma beam extreme temperatures, its beam center is up to up to ten thousand degrees Celsius, and its energy density is very large, and adopt rare metal silk material little as melting capacity density required during raw material, so the rare metal powder type adopting the utility model to prepare is extensive, from the aluminium of low melting point, copper metal and alloy to refractory metal niobium, molybdenum, tungsten etc., this device all can be adopted to carry out spherical powder preparation;
2, melting sources and atomization process are all implemented under inert atmosphere protection, can effectively avoid some high activity rare metals as titanium or titanium alloy powder contamination, ensure the hypoxemia high-purity of prepared powder;
3, simple and practical, each parts used are the conventional equipment of materials processing and application, its wire feeder, and supersonic speed plasma gun is the conventional equipment in plasma spraying technology field, and cost is low, easy to operate.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, a kind of embodiment of the present utility model is described.
For the preparation facilities of spherical rare metal powder, there is feed chamber 1, described feed chamber 1 lower end is communicated with spray chamber 2 upper end, described spray chamber 2 lower end is communicated with receipts powder tank 4 arrival end, vacuum pump set 3 is communicated with spray chamber 2 upper lateral part, exhaust dust-removing tank 5 is communicated with spray chamber 2 following side, and feed chamber 1, spray chamber 2 and receiving between powder tank 4 is connected, spray chamber 2 and receive and be provided with valve opening between powder tank 4, exhaust dust-removing tank 5 and vacuum pump set and be communicated with or close; Wherein, wire feeding disc 6 and wire feeder 7 is provided with in described feed chamber 1, spray chamber 2 top is arranged with plasma gun I 8-1 and plasma gun II 8-2, and the parcel on described wire feeding disc 6 is placed between plasma gun I 8-1 and plasma gun II 8-2 continuously by wire feeder 7.Above-mentioned plasma gun I 8-1 and plasma gun II 8-2 is the supersonic speed plasma gun of outfit Laval nozzle and is non-diverting camber, all in 20-40, ° angle is arranged for plasma gun I 8-1 and plasma gun II 8-2 and vertical direction, preferably 25 ° of angles, and plasma gun I 8-1 and plasma gun II 8-2 all adopts high-purity argon gas as source of the gas.
Operation principle: one group of diameter 2mm molybdenum alloy parcel is loaded wire feeding disc 6 and parcel is incorporated into wire feed structure 7, open and receive powder tank 4 and spray chamber 2 and two valves between vacuum pump set 3 and spray chamber 2, close the valve between exhaust dust-removing tank 5 and spray chamber 2, then start vacuum pump set 3 pairs of feed chamber 1, spray chamber 2 and receive powder tank 4 and vacuumize, treat that in it, vacuum reaches 5 × 10
-3during Pa, stop the operation of vacuum pump set 3, close the valve between vacuum pump set 3 and spray chamber 2, start plasma gun I 8-1 and plasma gun II 8-2, make it to produce supersonic speed plasma beam, melting is also atomized molybdenum alloy parcel generation globular metallic powder, control wire feeder 7 and send into molybdenum alloy parcel continuously, and the spherical powder constantly prepared by atomization, when receiving the spherical powder in powder tank 4 and reaching a certain amount of, open valve between spray chamber 2 and exhaust dust-removing tank 5, unnecessary argon gas in timely discharge spray chamber 2, powder process is complete, close plasma gun power supply, powder delivery after powder cooling.
Above-described embodiment, just preferred embodiment of the present utility model, is not used for limiting the utility model practical range, therefore all equivalence changes done with content described in the utility model claim, all should be included within the utility model right.
Claims (3)
1. for the preparation facilities of spherical rare metal powder, there is feed chamber (1), it is characterized in that: described feed chamber (1) lower end is communicated with spray chamber (2) upper end, described spray chamber (2) lower end is communicated with receipts powder tank (4) arrival end, vacuum pump set (3) is communicated with spray chamber (2) upper lateral part, exhaust dust-removing tank (5) is communicated with spray chamber (2) following side, wherein, wire feeding disc (6) and wire feeder (7) is provided with in described feed chamber (1), spray chamber (2) top is arranged with plasma gun I (8-1) and plasma gun II (8-2), parcel on described wire feeding disc (6) is placed between plasma gun I (8-1) and plasma gun II (8-2) continuously by wire feeder (7).
2. the preparation facilities for spherical rare metal powder according to claim 1, it is characterized in that: described plasma gun I (8-1) and plasma gun II (8-2) are the supersonic speed plasma gun of outfit Laval nozzle and are non-diverting camber, and all in 20-40, ° angle is arranged with vertical direction for plasma gun I (8-1) and plasma gun II (8-2).
3. the preparation facilities for spherical rare metal powder according to claim 1 and 2, is characterized in that: described plasma gun I (8-1) and plasma gun II (8-2) all adopt high-purity argon gas as source of the gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520069209.3U CN204396886U (en) | 2015-01-30 | 2015-01-30 | For the preparation facilities of spherical rare metal powder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520069209.3U CN204396886U (en) | 2015-01-30 | 2015-01-30 | For the preparation facilities of spherical rare metal powder |
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| CN204396886U true CN204396886U (en) | 2015-06-17 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081337A (en) * | 2015-08-26 | 2015-11-25 | 宝鸡市博信金属材料有限公司 | Method and device for preparing fine spherical metal powder through high-frequency supersonic plasma gas |
| CN105108339A (en) * | 2015-08-31 | 2015-12-02 | 沈阳海纳鑫科技有限公司 | Additive manufacturing method based on titanium and titanium alloy wires |
| CN105458277A (en) * | 2015-12-19 | 2016-04-06 | 江永斌 | Device and method for producing high-purity metal powder through multi-head non-transferred arc plasma polymerization |
| CN105665730A (en) * | 2016-04-11 | 2016-06-15 | 西安赛隆金属材料有限责任公司 | Device and method for preparing spherical metal powder |
| CN105855560A (en) * | 2016-05-27 | 2016-08-17 | 广州纳联材料科技有限公司 | Spherical metal powder and preparation method thereof |
| CN107052354A (en) * | 2017-06-13 | 2017-08-18 | 河北工业大学 | A kind of device and method for preparing high sphericity 3D printing refractory metal powder |
| CN107433332A (en) * | 2017-09-19 | 2017-12-05 | 深圳微纳增材技术有限公司 | Plasma atomization prepares the device of metal dust |
| CN108237220A (en) * | 2016-12-27 | 2018-07-03 | 中国科学院宁波材料技术与工程研究所 | A kind of composite powder and its preparation method and application |
| CN111318716A (en) * | 2020-02-28 | 2020-06-23 | 华南理工大学 | High-entropy alloy spherical powder for powder bed melting additive manufacturing and preparation method and application thereof |
| CN112512733A (en) * | 2018-03-17 | 2021-03-16 | 加拿大派罗杰尼斯有限公司 | Method and apparatus for producing high-purity spherical metal powder from molten raw material |
| CN113751706A (en) * | 2021-09-08 | 2021-12-07 | 中国航发北京航空材料研究院 | Method and device for reducing metal content of high-temperature alloy powder by purification process |
-
2015
- 2015-01-30 CN CN201520069209.3U patent/CN204396886U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081337A (en) * | 2015-08-26 | 2015-11-25 | 宝鸡市博信金属材料有限公司 | Method and device for preparing fine spherical metal powder through high-frequency supersonic plasma gas |
| CN105108339A (en) * | 2015-08-31 | 2015-12-02 | 沈阳海纳鑫科技有限公司 | Additive manufacturing method based on titanium and titanium alloy wires |
| CN105108339B (en) * | 2015-08-31 | 2017-04-19 | 沈阳海纳鑫科技有限公司 | Additive manufacturing method based on titanium and titanium alloy wires |
| CN105458277A (en) * | 2015-12-19 | 2016-04-06 | 江永斌 | Device and method for producing high-purity metal powder through multi-head non-transferred arc plasma polymerization |
| CN105665730A (en) * | 2016-04-11 | 2016-06-15 | 西安赛隆金属材料有限责任公司 | Device and method for preparing spherical metal powder |
| CN105855560A (en) * | 2016-05-27 | 2016-08-17 | 广州纳联材料科技有限公司 | Spherical metal powder and preparation method thereof |
| CN108237220A (en) * | 2016-12-27 | 2018-07-03 | 中国科学院宁波材料技术与工程研究所 | A kind of composite powder and its preparation method and application |
| CN107052354A (en) * | 2017-06-13 | 2017-08-18 | 河北工业大学 | A kind of device and method for preparing high sphericity 3D printing refractory metal powder |
| CN107052354B (en) * | 2017-06-13 | 2019-04-12 | 河北工业大学 | A kind of device and method preparing high sphericity 3D printing refractory metal powder |
| CN107433332A (en) * | 2017-09-19 | 2017-12-05 | 深圳微纳增材技术有限公司 | Plasma atomization prepares the device of metal dust |
| CN107433332B (en) * | 2017-09-19 | 2023-08-04 | 深圳微纳增材技术有限公司 | Device for preparing metal powder by plasma atomization |
| CN112512733A (en) * | 2018-03-17 | 2021-03-16 | 加拿大派罗杰尼斯有限公司 | Method and apparatus for producing high-purity spherical metal powder from molten raw material |
| CN111318716A (en) * | 2020-02-28 | 2020-06-23 | 华南理工大学 | High-entropy alloy spherical powder for powder bed melting additive manufacturing and preparation method and application thereof |
| CN113751706A (en) * | 2021-09-08 | 2021-12-07 | 中国航发北京航空材料研究院 | Method and device for reducing metal content of high-temperature alloy powder by purification process |
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