CN103386491A - Process and equipment used for preparing high-purity spherical titanium and titanium alloy powder material - Google Patents
Process and equipment used for preparing high-purity spherical titanium and titanium alloy powder material Download PDFInfo
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- CN103386491A CN103386491A CN201310142108XA CN201310142108A CN103386491A CN 103386491 A CN103386491 A CN 103386491A CN 201310142108X A CN201310142108X A CN 201310142108XA CN 201310142108 A CN201310142108 A CN 201310142108A CN 103386491 A CN103386491 A CN 103386491A
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Abstract
The invention discloses a process and equipment used for preparing a high-purity spherical titanium and titanium alloy powder material. The equipment comprises an electrode vertical conveying device 1, a vacuum induction melting device 2, a gas atomizer 3 and an atomizing tower 4, and is characterized in that the vertical displacement and the rotating speed of titanium and titanium alloy electrode bars entering a vacuum induction melting furnace are precisely controlled by the electrode vertical conveying device; the titanium and the titanium alloy electrode bars are molten into liquid in the induction furnace under a non-crucible contact state; the melting rate of the titanium and titanium alloy electrode bars can be adjusted through controlling the displacement speed of the titanium and titanium alloy electrode bars entering the melting furnace and the heating temperature in the induction furnace; when the metal liquid passes through a gas confluence focus of the high-pressure inert gas atomizer, a titanium and titanium alloy liquid phase flow is crushed into a superfine fogdrop state; under the effect of surface tension, liquid drops settle, cool and form the spherical superfine powder material in the atomizing tower and are separated and collected by a filter; the titanium and titanium alloy powder materials with different granularities and size distribution can be obtained through controlling atomizing gas pressure and flow. By using the process and the equipment, high-purity spherical magnesium, aluminum, nickel, chromium, tungsten, molybdenum and corresponding alloy powder and ceramic powder can be prepared.
Description
Technical field
The present invention relates to a kind of utilization rotation electrode vacuum induction melting, adopt the spherical titanium or titanium alloy powder body material of inert gas atomizer mode production high-purity technology and equipment.
Background technology
titanium presents activity extremely in the high melt process, when traditional inert gas high-pressure atomization mode is produced spherical titanium and alloy powder material, owing to adopting oxide, the nitride material crucible for smelting, titanium elements can be when high temperature and these crucible material generation redox reactions, thereby can not the production high-purity, high-quality titanium and alloy powder material, have a strong impact on titanium or titanium alloy and print use in increasing material forming as advanced material at powder metallurgy injection moulding (MIM) and 3D metal, can't meet Aero-Space, medicine equipment, the specific (special) requirements of chemical industry to the titanium material components.
Summary of the invention
The present invention relates to a kind of utilization rotation electrode vacuum induction melting inert gas atomizer mode and produce spherical titanium or titanium alloy powder body material technology and equipment.The equipment of technique of the present invention comprises the vertical conveying device of electrode, vacuum induction melting device, atomizer arrangement and atomisation tower device.
The vertical conveying device 1 of electrode, provide respectively electrode rotary and vertical deviation power by two servomotors.Whole device in a closed chamber, can constantly be changed the titanium or titanium alloy electrode bar by hermatic door.The vertical displacement of electrode bar and rotary speed can accurately be controlled.
Induction melting device 2, be comprised of induction coil and induction generator.Electrode bar melts in inductor under contactless state,, by controlling induced power and electrode bar velocity of displacement, can control the material melting rate, meets the gases at high pressure atomization rates.
The gas of titanium or titanium alloy liquid after fusing by high-pressure inert gas atomizer 3 focus of confluxing, smashed into ultra-fine droplet by high-pressure inert gas, under surface tension effects, these ultra-fine droplets are the ball shape superfines at the interior sedimentation cooling forming of atomisation tower 4, finally by the filter separated and collected.
The invention has the beneficial effects as follows and need not to use melting kettle, material can be under contactless condition heat fused and adopt the high-pressure inert gas atomization, thereby can prepare the spherical active titanium or titanium alloy powder of high-cleanness, high, also can be used for preparing the spherical magnesium of high-purity, aluminium, nickel, chromium, tungsten, molybdenum etc. and alloy powder thereof, and ceramic powders.
The running parameter of its typical products production is:
1) the vertical conveying device of electrode
(1) raw material electrode full-size is;
(2) the vertical delivery rate of electrode: 20-100 mm/min;
2) vacuum induction melting device
(1) raw material electrode smelting temperature maximum: 2000 ℃;
(2) atomization rates (titanium alloy) 0.2-1.0 kg/min;
(3) batch work period: 15min;
3) high-pressure inert gas atomizer
(1) inert gas air consumption (between atomization period): 10-25 Sm
3/ min
(2) air pressure: minimum 25; Maximum 40 bar;
(3) air-flow: minimum/maximum 20/25 m
3/ min;
(4) gas temperature: minimum 0 ℃;
(5) purity inert gas: 99.999 % (5.0);
(6) gas type: nitrogen/argon gas;
(7) atomization rates (titanium alloy): 0.2-1.0 kg/min;
(8) batch work period: 15 min;
4) atomisation tower
(1) atomisation tower diameter 1000 mm;
(2) high 2000 mm of atomisation tower cylinder;
(3) high 6700 mm of device;
(4) floor space 4000 x 6000 mm;
(5) highest attained vacuum≤8Pa; Slip≤5 Pa/h;
5) heat-exchange system
(1) cooling water consumption 110 l/min; Urgent with water consumption 30 l/min;
(2) cooling water pressure meter: minimum/maximum 5-7 bar;
The granularity D50 of typical high purity titanium valve product is 50 ~ 120um;
Can obtain the titanium or titanium alloy dusty material powder of different grain size and size distribution by controlling atomization pressure and flow.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing one and embodiment.
Accompanying drawing 1 is the structural map of present device.
In figure: 1. the vertical conveying device of electrode, 2. vacuum induction melting device, 3. inert gas atomizer device, 4. atomisation tower.
The specific embodiment
The vertical conveying device of electrode (1) provides respectively electrode rotary and vertical deviation power by two servomotors.Whole device is in a closed chamber, and the titanium or titanium alloy electrode bar enters induction melting device 2 by hermatic door, and the vertical displacement of electrode bar and rotary speed can be controlled by system is accurate.Vacuum induction melting device (2) is comprised of induction coil and induction generator.Electrode bar melts in inductor under without the crucible contact condition,, by controlling induced power and electrode bar velocity of displacement, can control the material melting rate, meets the gases at high pressure atomization rates.Molten metal liquid is by high-pressure inert gas atomizer (3) in induction furnace, be crashed to pieces into ultra-fine droplet shape in the gas focus of confluxing, under surface tension effects, drop sedimentation cooling forming in atomisation tower (4) is ball shape superfines material, then pass through cyclone cluster, powder is separated from gas, collect a bubble-tight powder container below cyclone cluster.
Claims (3)
1. technology and equipment for preparing the spherical titanium or titanium alloy dusty material of high-purity, it is characterized in that: this technique and device utilize the vertical conveying device of electrode that the titanium or titanium alloy electrode bar is sent into vacuum induction melting furnace, provide respectively electrode rotary and vertical deviation power by two servomotors, can accurately control rotary speed and the vertical deviation of titanium or titanium alloy rod, the titanium or titanium alloy electrode bar in the situation that in induction melting furnace not contact induction stove inwall be molten into metal liquid, avoided contacting with the crucible induction furnace inwall high melt generation chemical reaction, metal liquid enters the high-pressure inert gas atomizer, when confluxing intersection point, arrival gas smashed into ultra-fine drop by high-pressure inert gas, the superfine metal drop under surface tension effects in atomisation tower the sedimentation cooling forming be ball shape superfines material, by the filter separated and collected, prepare highly purified spherical titanium or titanium alloy dusty material.
2. a kind of technology and equipment for preparing the spherical titanium or titanium alloy dusty material of high-purity according to claim 1, it is characterized in that: the running parameter of the typical products production of this technique is:
1) the vertical conveying device of electrode
(1) raw material electrode full-size is;
(2) the vertical delivery rate of electrode: 20-100 mm/min;
2) vacuum induction melting device
(1) raw material electrode smelting temperature maximum: 2000 ℃;
(2) atomization rates (titanium alloy) 0.2-1.0 kg/min;
(3) batch work period: 15min;
3) high-pressure inert gas atomizer
(1) inert gas air consumption (between atomization period): 10-25 Sm
3/ min
(2) air pressure: minimum 25; Maximum 40 bar;
(3) air-flow: minimum/maximum 20/25 m
3/ min;
(4) gas temperature: minimum 0 ℃;
(5) purity inert gas: 99.999 % (5.0)
(6) gas type: nitrogen/argon gas
(7) atomization rates (titanium alloy): 0.2-1.0 kg/min;
(8) batch work period: 15 min;
4) atomisation tower
(1) atomisation tower diameter 1000 mm;
(2) high 2000 mm of atomisation tower cylinder;
(3) high 6700 mm of device;
(4) floor space 4000 x 6000 mm;
(5) highest attained vacuum≤8Pa; Slip≤5 Pa/h;
5) heat-exchange system
(1) cooling water consumption 1101/min; The urgent water consumption 301/min that uses;
(2) cooling water pressure meter: minimum/maximum 5-7 bar;
The granularity D50 of typical high purity titanium valve product is 50-120um;
Can obtain the titanium or titanium alloy dusty material powder of different grain size and size distribution by controlling atomization pressure and flow.
3. a kind of technology and equipment for preparing the spherical titanium or titanium alloy dusty material of high-purity according to claim 1, also can be used for preparing the spherical magnesium of high-purity, aluminium, nickel, chromium, tungsten, molybdenum etc. and alloy powder thereof, and ceramic powders.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142108XA CN103386491A (en) | 2013-04-23 | 2013-04-23 | Process and equipment used for preparing high-purity spherical titanium and titanium alloy powder material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142108XA CN103386491A (en) | 2013-04-23 | 2013-04-23 | Process and equipment used for preparing high-purity spherical titanium and titanium alloy powder material |
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|---|---|
| CN103386491A true CN103386491A (en) | 2013-11-13 |
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| CN201310142108XA Pending CN103386491A (en) | 2013-04-23 | 2013-04-23 | Process and equipment used for preparing high-purity spherical titanium and titanium alloy powder material |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550984A (en) * | 2014-12-15 | 2015-04-29 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of nickel-based high-temperature alloy powder for 3D (Three Dimensional) printing |
| CN104550990A (en) * | 2015-01-28 | 2015-04-29 | 大连理工大学 | Method and device for preparing superfine spherical high-melt-point metal powder for 3D printing |
| CN104762541A (en) * | 2015-03-17 | 2015-07-08 | 华南协同创新研究院 | Rare earth magnesium-alloy material for 3D printing and preparation method of same |
| CN105127436A (en) * | 2015-09-29 | 2015-12-09 | 西北有色金属研究院 | Preparation method of titanium and titanium alloy spherical powder by vacuum induction melting gas atomization |
| CN105642879A (en) * | 2016-01-14 | 2016-06-08 | 鞍山东大激光科技有限公司 | Spherical TC4 titanium alloy powder used for laser 3D printing and preparation method thereof |
| CN105880612A (en) * | 2016-06-28 | 2016-08-24 | 浙江亚通焊材有限公司 | Method for preparing active metal powder for additive manufacturing |
| CN106735274A (en) * | 2017-04-08 | 2017-05-31 | 长沙唯特冶金工程技术有限公司 | A kind of equipment and technique for preparing globular metallic powder |
| CN107400802A (en) * | 2017-07-20 | 2017-11-28 | 西北有色金属研究院 | A kind of increasing material manufacturing titanium aluminium base alloy dusty material and preparation method thereof |
| CN107745130A (en) * | 2017-09-26 | 2018-03-02 | 江苏威拉里新材料科技有限公司 | A kind of high temperature niobium tungsten alloy raw powder's production technology |
| CN108145172A (en) * | 2016-12-05 | 2018-06-12 | 无锡辛德华瑞粉末新材料科技有限公司 | A kind of preparation method of 4D printings special-purpose metal powder |
| CN109773201A (en) * | 2019-02-20 | 2019-05-21 | 潍坊学院 | A kind of apparatus for preparing metal powder |
| CN110877106A (en) * | 2019-12-13 | 2020-03-13 | 安徽哈特三维科技有限公司 | Titanium alloy powder raw material reducing mechanism for 3D printer |
| CN112024899A (en) * | 2020-09-04 | 2020-12-04 | 上海大学 | TiN-Ti composite powder and preparation method and application thereof |
| US11794248B2 (en) * | 2022-01-25 | 2023-10-24 | Shenyang University Of Technology | Multi-stage gas atomization preparation method of titanium alloy spherical powder for 3D printing technology |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550984B (en) * | 2014-12-15 | 2016-08-24 | 中国航空工业集团公司北京航空材料研究院 | A kind of preparation method of 3D printing Ni-base Superalloy Powder |
| CN104550984A (en) * | 2014-12-15 | 2015-04-29 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of nickel-based high-temperature alloy powder for 3D (Three Dimensional) printing |
| CN104550990A (en) * | 2015-01-28 | 2015-04-29 | 大连理工大学 | Method and device for preparing superfine spherical high-melt-point metal powder for 3D printing |
| CN104762541A (en) * | 2015-03-17 | 2015-07-08 | 华南协同创新研究院 | Rare earth magnesium-alloy material for 3D printing and preparation method of same |
| CN104762541B (en) * | 2015-03-17 | 2017-03-15 | 华南协同创新研究院 | A kind of rare earth magnesium alloy material for 3D printing and preparation method thereof |
| CN105127436A (en) * | 2015-09-29 | 2015-12-09 | 西北有色金属研究院 | Preparation method of titanium and titanium alloy spherical powder by vacuum induction melting gas atomization |
| CN105127436B (en) * | 2015-09-29 | 2017-03-08 | 西北有色金属研究院 | A kind of vacuum induction melting aerosolization preparation method of titanium or titanium alloy spherical powder |
| CN105642879A (en) * | 2016-01-14 | 2016-06-08 | 鞍山东大激光科技有限公司 | Spherical TC4 titanium alloy powder used for laser 3D printing and preparation method thereof |
| CN105880612A (en) * | 2016-06-28 | 2016-08-24 | 浙江亚通焊材有限公司 | Method for preparing active metal powder for additive manufacturing |
| CN105880612B (en) * | 2016-06-28 | 2018-07-06 | 浙江亚通焊材有限公司 | A kind of increasing material manufacturing active metal powder preparation method |
| CN108145172A (en) * | 2016-12-05 | 2018-06-12 | 无锡辛德华瑞粉末新材料科技有限公司 | A kind of preparation method of 4D printings special-purpose metal powder |
| CN106735274B (en) * | 2017-04-08 | 2019-01-22 | 长沙唯特增材制造技术有限公司 | A kind of equipment and technique preparing globular metallic powder |
| CN106735274A (en) * | 2017-04-08 | 2017-05-31 | 长沙唯特冶金工程技术有限公司 | A kind of equipment and technique for preparing globular metallic powder |
| CN107400802A (en) * | 2017-07-20 | 2017-11-28 | 西北有色金属研究院 | A kind of increasing material manufacturing titanium aluminium base alloy dusty material and preparation method thereof |
| CN107400802B (en) * | 2017-07-20 | 2018-10-30 | 西北有色金属研究院 | A kind of increasing material manufacturing titanium aluminium base alloy dusty material and preparation method thereof |
| CN107745130A (en) * | 2017-09-26 | 2018-03-02 | 江苏威拉里新材料科技有限公司 | A kind of high temperature niobium tungsten alloy raw powder's production technology |
| CN109773201A (en) * | 2019-02-20 | 2019-05-21 | 潍坊学院 | A kind of apparatus for preparing metal powder |
| CN110877106A (en) * | 2019-12-13 | 2020-03-13 | 安徽哈特三维科技有限公司 | Titanium alloy powder raw material reducing mechanism for 3D printer |
| CN112024899A (en) * | 2020-09-04 | 2020-12-04 | 上海大学 | TiN-Ti composite powder and preparation method and application thereof |
| US11794248B2 (en) * | 2022-01-25 | 2023-10-24 | Shenyang University Of Technology | Multi-stage gas atomization preparation method of titanium alloy spherical powder for 3D printing technology |
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Application publication date: 20131113 |