CN204449311U - For the preparation of the device of fine grain hypoxemia spherical titanium and titanium alloy powder - Google Patents
For the preparation of the device of fine grain hypoxemia spherical titanium and titanium alloy powder Download PDFInfo
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- CN204449311U CN204449311U CN201520069162.0U CN201520069162U CN204449311U CN 204449311 U CN204449311 U CN 204449311U CN 201520069162 U CN201520069162 U CN 201520069162U CN 204449311 U CN204449311 U CN 204449311U
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Abstract
A kind of device for the preparation of fine grain hypoxemia spherical titanium and titanium alloy powder is provided, melting chamber, spray chamber are communicated with successively with receipts powder tank, vacuum pump set is communicated with following side with spray chamber upper lateral part respectively with exhaust dust-removing tank, wire feeding disc and wire feeder is provided with in melting chamber, melting chamber interior lower end is also provided with many group atomizers and ignition tip I, ignition tip II, described ignition tip I and ignition tip II are placed between many group atomizers, and the parcel on wire feeding disc is all incorporated into ignition tip I and ignition tip II continuously by wire feeder.The utility model forms molten drop by arc-melting titanium alloy wire materials; then powder process is carried out with supersonic speed inert gas atomizer point molten metal stream; its melting sources and powder by atomization process are all implemented under inert atmosphere protection; high-activity titanium and titanium alloy powder is effectively avoided to pollute; ensure the hypoxemia high-purity of prepared powder, and supersonic speed inert gas impact atomization molten drop can realize the preparation of fine particle size titanium or titanium alloy powder.
Description
Technical field
The utility model belongs to powder metallurgical technology, is specifically related to a kind of device for the preparation of fine grain hypoxemia spherical titanium and titanium alloy powder.
Background technology
High-quality hypoxemia spherical titanium and titanium alloy powder are the basic materials of powder metallurgy titanium or titanium alloy, which determine the performance of powder metallurgy titanium or titanium alloy part and the expansion of application thereof, and the rise of the process technology such as injection moulding, the manufacture of increasing material also been proposed new requirement to titanium or titanium alloy powder stock.Because titanium is at high temperature to the high activity of oxygen, nitrogen, hydrogen, carbon, make to produce high-quality hypoxemia spherical titanium and titanium alloy powder difficulty is comparatively large, be applicable to injection moulding and the fine grain spherical titanium needed for laser gain material manufacturing process and titanium alloy powder (≤45 μm) yield then less.The production status of high-quality fine grain titanium alloy powder limits further developing of powder metallurgy titanium or titanium alloy and extensive use to a certain extent.At present, the technology of large-scale production high-quality hypoxemia spherical titanium and titanium alloy powder mainly contains plasma rotating electrode powder-making technique and inert gas atomizer technology.Plasma rotating electrode powder-making technique passes through with high-temperature plasma arc melting High Rotation Speed titanium or titanium alloy 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.Because the rotary speed of current bar is generally within 20000 revs/min, the centrifugal force of higher metal drop aerosol dispersion cannot be provided, so now with the titanium or titanium alloy powder prepared by this technology, its most powder particle granularity is all between 100 ~ 250 μm, and the powder of≤45 μm does not almost have.For inert gas atomizer technology, because titanium or titanium alloy presents activity extremely in high melt process, so fusing titanium or titanium alloy raw material mostly in a vacuum or inert atmosphere, adopt the induction melting mode of water jacketed copper crucible, or adopt the direct induction melting of metal bar material; These current flouring technology energy consumptions melting then aerosolization are higher, and the particulate of preparation is lower through the spherical titanium or titanium alloy yield of (≤45 μm), are therefore necessary to propose to improve.
Utility model content
The technical problem that the utility model solves: a kind of device for the preparation of fine grain hypoxemia spherical titanium and titanium alloy powder; molten drop is formed by arc-melting titanium alloy wire materials; then powder process is carried out with supersonic speed inert gas atomizer point molten metal stream; its melting sources and powder by atomization process are all implemented under inert atmosphere protection; high-activity titanium and titanium alloy powder can be effectively avoided to pollute; ensure the hypoxemia high-purity of prepared powder, and supersonic speed inert gas impact atomization molten drop can realize the preparation of fine particle size titanium or titanium alloy powder.
The technical solution adopted in the utility model: for the preparation of the device of fine grain hypoxemia spherical titanium and titanium alloy powder, there is melting chamber, described melting 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 I is provided with in described melting chamber, wire feeding disc II and wire feeder, described melting chamber interior lower end is also provided with many group atomizers and ignition tip I, ignition tip II, described ignition tip I and ignition tip II are placed between many group atomizers, described wire feeding disc I, parcel on wire feeding disc II is all incorporated into ignition tip I and ignition tip II continuously by wire feeder.
Wherein, described many group atomizers are made up of atomizer I, atomizer II and atomizer III, wherein atomizer II and atomizer III be all equipped with Laval nozzle and ignition tip I and ignition tip II side-lower circumferentially 180 ° uniform, all in 20-40, ° angle is arranged with vertical direction for atomizer II and atomizer III, and described atomizer I is located at directly over ignition tip I and ignition tip II centre.
Wherein, described atomizer I, atomizer II and atomizer III all adopt high-purity argon gas or helium as source of the gas.
The utility model advantage compared with prior art:
1, form metal liquid stream with electric arc fuse-wires structure, then form supersonic airstream atomized drop with Laval nozzle and prepare spherical titanium and titanium alloy powder, its technological process is short, and energy consumption is low;
2, fusing and powder by atomization process are all implemented under inert atmosphere protection, high-activity titanium and titanium alloy powder can be effectively avoided to pollute, ensure the hypoxemia high-purity of prepared powder, and be fully atomized titanium or titanium alloy molten drop by supersonic airstream, prepared particulate is higher through powder yield;
3, simple and practical, each parts used are the conventional equipment of materials processing and application, the device of its fuse formation titanium or titanium alloy liquid stream is the conventional equipment in arc spraying technology, gas is accelerated to the conventional equipment that ultrasonic Laval nozzle is also aerosolization technical field, 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 of the device of fine grain hypoxemia spherical titanium and titanium alloy powder, there is melting chamber 1, described melting chamber 1 lower end is communicated with spray chamber 2 upper end, described spray chamber 2 lower end is communicated with receipts powder tank 10 arrival end, spray chamber 2 and receive and be provided with valve opening between powder tank 10 and exhaust dust-removing tank 5 and be communicated with or close, 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 I 7-1 is provided with in described melting chamber 1, wire feeding disc II 7-2 and wire feeder 6, described melting chamber 1 interior lower end is also provided with many group atomizers and ignition tip I 11-1, ignition tip II 11-2, described ignition tip I 11-1 and ignition tip II 11-2 is placed between many group atomizers, described wire feeding disc I 7-1, parcel on wire feeding disc II 7-2 is all incorporated into ignition tip I 11-1 and ignition tip II 11-2 continuously by wire feeder 6.
Above-mentioned many group atomizers are by atomizer I 8, atomizer II 9-1 and atomizer III 9-2 is formed, wherein atomizer II 9-1 and atomizer III 9-2 be all equipped with Laval nozzle and ignition tip I 11-1 and ignition tip II 11-2 side-lower circumferentially 180 ° uniform, all in 20-40, ° angle is arranged for atomizer II 9-1 and atomizer III 9-2 and vertical direction, preferably 30 ° of angles, supersonic atomization air-flow can be formed and converge at a bit, described atomizer I 8 is located at directly over ignition tip I 11-1 and ignition tip II 11-2 centre, metal liquid stream is mainly blown into supersonic atomization air-flow convergent point by atomizer I 8.Wherein, described atomizer I 8, atomizer II 9-1 and atomizer III 9-2 all adopt high-purity argon gas or helium as source of the gas.
Operation principle: 2 groups of 2mm diameter titanium alloy parcels are loaded wire feeding disc I 7-1 and wire feeding disc I 7-2, and parcel is incorporated into ignition tip I 11-1 and ignition tip II 11-2, open and receive powder tank 10 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 melting chambers 1, spray chamber 2 and receive powder tank 10 and vacuumize, treat that in it, vacuum reaches 5 × 10
-3during Pa, vacuum pump set 3 is stopped to run, close the valve between vacuum pump set 3 and spray chamber 2, given in spray chamber 2 by atomizer I 8 and be filled with about 0.2MPa high-purity argon gas or helium, open arc power 4 and start melting titanium alloy silk material, and start wire feeder 6 and continue to send parcel to, form continuous metal liquid stream, give atomizer I 8, atomizer II 9-1 and atomizer III 9-2 air feed simultaneously, by molten metal bath stream powder by atomization, powder preparation opens valve between spray chamber 2 and exhaust dust-removing tank 5 simultaneously, discharges unnecessary argon gas or helium in spray chamber 2 in time.Treat that powder process is complete, close arc power 4 and wire feeder 6, and stop to atomizer I 8, atomizer II 9-1 and atomizer III 9-2 air feed.
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 of the device of fine grain hypoxemia spherical titanium and titanium alloy powder, there is melting chamber (1), it is characterized in that: described melting chamber (1) lower end is communicated with spray chamber (2) upper end, described spray chamber (2) lower end is communicated with receipts powder tank (10) 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 I (7-1) is provided with in described melting chamber (1), wire feeding disc II (7-2) and wire feeder (6), described melting chamber (1) interior lower end is also provided with many group atomizers and ignition tip I (11-1), ignition tip II (11-2), described ignition tip I (11-1) and ignition tip II (11-2) are placed between many group atomizers, described wire feeding disc I (7-1), parcel on wire feeding disc II (7-2) is all incorporated into ignition tip I (11-1) and ignition tip II (11-2) continuously by wire feeder (6).
2. the device for the preparation of fine grain hypoxemia spherical titanium and titanium alloy powder according to claim 1, it is characterized in that: described many group atomizers are by atomizer I (8), atomizer II (9-1) and atomizer III (9-2) are formed, wherein atomizer II (9-1) and atomizer III (9-2) be all equipped with Laval nozzle and ignition tip I (11-1) and ignition tip II (11-2) side-lower circumferentially 180 ° uniform, all in 20-40, ° angle is arranged with vertical direction for atomizer II (9-1) and atomizer III (9-2), described atomizer I (8) is located at directly over ignition tip I (11-1) and ignition tip II (11-2) centre.
3. the device for the preparation of fine grain hypoxemia spherical titanium and titanium alloy powder according to claim 2, is characterized in that: described atomizer I (8), atomizer II (9-1) and atomizer III (9-2) all adopt high-purity argon gas or helium as source of the gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520069162.0U CN204449311U (en) | 2015-01-30 | 2015-01-30 | For the preparation of the device of fine grain hypoxemia spherical titanium and titanium alloy powder |
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| CN201520069162.0U CN204449311U (en) | 2015-01-30 | 2015-01-30 | For the preparation of the device of fine grain hypoxemia spherical titanium and titanium alloy powder |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312587A (en) * | 2015-12-11 | 2016-02-10 | 东北大学 | Centrifugal atomizing device for preparing metal powder |
| CN107262728A (en) * | 2017-06-08 | 2017-10-20 | 深圳微纳增材技术有限公司 | Vacuum arc prepares the device and method of metal dust |
| CN107282936A (en) * | 2017-06-08 | 2017-10-24 | 深圳微纳增材技术有限公司 | Prepare the device and method of metal dust |
| 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 |
| CN107570717A (en) * | 2017-07-12 | 2018-01-12 | 张家港创博金属科技有限公司 | A kind of pollution-free method and device for preparing uniform grading active metal spherical powder |
| CN107900366A (en) * | 2017-12-27 | 2018-04-13 | 北京康普锡威科技有限公司 | Aerosolization continuously prepares the device and method of 3D printing titanium or titanium alloy powder |
| CN109604623A (en) * | 2019-01-28 | 2019-04-12 | 深圳微纳增材技术有限公司 | The quick-fried fuel pulverizing plant of mariages arc |
| CN110267761A (en) * | 2016-12-21 | 2019-09-20 | 卡本特科技公司 | Produce the device and method of titanium valve |
| CN110355377A (en) * | 2019-06-27 | 2019-10-22 | 曲源 | Ultrasonic wave arc system powder device and method |
| CN110508826A (en) * | 2019-10-09 | 2019-11-29 | 自贡长城硬面材料有限公司 | A kind of efficient electric arc atomising device and a kind of method for preparing ultra-fine grain diameter metal alloy powders |
| CN113290249A (en) * | 2021-04-19 | 2021-08-24 | 北京工业大学 | Method and equipment for preparing spherical metal powder by arc-assisted plasma atomization |
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2015
- 2015-01-30 CN CN201520069162.0U patent/CN204449311U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312587A (en) * | 2015-12-11 | 2016-02-10 | 东北大学 | Centrifugal atomizing device for preparing metal powder |
| CN110267761A (en) * | 2016-12-21 | 2019-09-20 | 卡本特科技公司 | Produce the device and method of titanium valve |
| CN107262728A (en) * | 2017-06-08 | 2017-10-20 | 深圳微纳增材技术有限公司 | Vacuum arc prepares the device and method of metal dust |
| CN107282936A (en) * | 2017-06-08 | 2017-10-24 | 深圳微纳增材技术有限公司 | Prepare the device and method of metal dust |
| CN107262728B (en) * | 2017-06-08 | 2023-12-05 | 深圳微纳增材技术有限公司 | Device and method for preparing metal powder by vacuum arc |
| CN107570717A (en) * | 2017-07-12 | 2018-01-12 | 张家港创博金属科技有限公司 | A kind of pollution-free method and device for preparing uniform grading active metal spherical powder |
| 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 |
| 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 |
| CN107900366A (en) * | 2017-12-27 | 2018-04-13 | 北京康普锡威科技有限公司 | Aerosolization continuously prepares the device and method of 3D printing titanium or titanium alloy powder |
| CN109604623A (en) * | 2019-01-28 | 2019-04-12 | 深圳微纳增材技术有限公司 | The quick-fried fuel pulverizing plant of mariages arc |
| CN109604623B (en) * | 2019-01-28 | 2024-04-26 | 深圳微纳增材技术有限公司 | Double-wire arc explosion powder making device |
| CN110355377A (en) * | 2019-06-27 | 2019-10-22 | 曲源 | Ultrasonic wave arc system powder device and method |
| CN110508826A (en) * | 2019-10-09 | 2019-11-29 | 自贡长城硬面材料有限公司 | A kind of efficient electric arc atomising device and a kind of method for preparing ultra-fine grain diameter metal alloy powders |
| CN113290249A (en) * | 2021-04-19 | 2021-08-24 | 北京工业大学 | Method and equipment for preparing spherical metal powder by arc-assisted plasma atomization |
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