CN103600084A - Powder metallurgy high-pressure water atomization pulverizing device - Google Patents
Powder metallurgy high-pressure water atomization pulverizing device Download PDFInfo
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- CN103600084A CN103600084A CN201310414420.XA CN201310414420A CN103600084A CN 103600084 A CN103600084 A CN 103600084A CN 201310414420 A CN201310414420 A CN 201310414420A CN 103600084 A CN103600084 A CN 103600084A
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Abstract
The invention provides a powder metallurgy high-pressure water atomization pulverizing device which comprises a box-shaped leaking bag for storing and keeping molten metal warm, a liquid guiding pipe arranged right under the leaking bag and communicated with the leaking bag and a powder storing box arranged right under the liquid guiding pipe. The powder metallurgy high-pressure water atomization pulverizing device is characterized in that a first atomizer and a second atomizer are further arranged between the liquid guiding pipe and the powder storing box from top to bottom, wherein the first atomizer comprises a first atomizing pipe and a first nozzle arranged at one end of the first atomizing pipe and communicated with the first atomizing pipe, and the second atomizer comprises a second atomizing pipe and a second nozzle arranged at one end of the second atomizing pipe and communicated with the second atomizing pipe. By adding the first atomizer, high-pressure sprayed out of the first nozzle enables the molten metal passing an atomizing focal point to be cut off, dispersed and cracked to form tiny liquid drops, and then the tiny liquid drops solidify to form powder. In addition, by adding the second atomizer, low-pressure inert gas-neon sprayed out of the second nozzle enables metal and alloy oxidization to be reduced, and the oxygen content of the powder is reduced.
Description
Technical field
The present invention relates to a kind of fuel pulverizing plant, be specifically related to a kind of high-pressure water atomized powder making device, Powdered for metalliferous material is made, belong to powder metallurgy field of mechanical technique.
Background technology
Metal Injection Molding is the Novel powder metallurgy forming technique that modern plastics injection molding technology introducing field of powder metallurgy is formed.Its basic craft course is: first that pressed powder and organic adhesive is evenly mixing, after granulating, under heating plasticizing state, with injection (mo(u)lding) machine, inject curing molding in mould cavity, then by the method for chemistry or thermal decomposition, the bonding agent in one-tenth parison is removed, finally by sintering densification, obtain final products.Compare with traditional handicraft, have that precision is high, a feature such as even tissue, excellent performance, production cost are low, be particularly suitable for producing in enormous quantities the baroque constitutional detail of small-sized three-dimensional.
Powder is the initial materials of metallurgical injection molding technology, and its quality directly affects the quality of final finished product.Conventional milling method is Mechanical Method at present, utilize ball milling or utilize power (High Rotation Speed of driven by motor) to make to produce between metalliferous material fragment the method for collision, friction acquisition metal dust, the major defect of this method is that product oxygen content is high, powder shape mostly is irregular, particle diameter is inhomogeneous.
Summary of the invention
In order to solve the deficiency in background technology, the object of the invention is to overcome the defect of background technology, the powder metallurgy that a kind of oxygen content is low, particle diameter is even, powder shape is regular high-pressure water atomized powder making device is provided.
For achieving the above object, the technical solution used in the present invention is: a kind of powder metallurgy high-pressure water atomized powder making device, comprise the case shape bottom pour ladle that stores molten metal for being incubated, be arranged under described bottom pour ladle and with the catheter of its internal communication, and be arranged on the powder storage tank under described catheter, it is characterized in that: between described catheter and powder storage tank, be also provided with the first atomizer from top to bottom, the second atomizer, described the first atomizer comprise the first mist pipe and be arranged on its one end and with the first nozzle of its internal communication, described the second atomizer comprise the second mist pipe and be arranged on its one end and with the second nozzle of its internal communication.
In a preferred embodiment of the present invention, the other end that further comprises described the first mist pipe is communicated with for add the high pressure hydroecium of water under high pressure, the other end of described the second mist pipe to be communicated with for add the low-pressure chamber of low-pressure gas to the second mist pipe to the first mist pipe.
In a preferred embodiment of the present invention, further comprise that described the first nozzle is that angle between circumferential weld nozzle ，Qie Qi center spray line and the axis of described catheter is 21 ~ 25 °.
In a preferred embodiment of the present invention, further comprise that the central-injection line of described second nozzle and the angle between the axis of described catheter are 22.5 ~ 25 °.
In a preferred embodiment of the present invention, further comprise that described high pressure hydroecium is 10 ~ 15MPa to the hydraulic pressure of the water under high pressure adding in the first mist pipe.
In a preferred embodiment of the present invention, further comprise that described low-pressure chamber is neon to the low-pressure gas adding in the second mist pipe.
Usefulness of the present invention is: a kind of powder metallurgy high-pressure water atomized powder making device of the present invention, by adding the first atomizer, the water under high pressure ejecting from the first nozzle in atomization focus to the metal liquid stream cut-out of flowing through, dispersion, cracking and become fine droplet and then solidify acquisition powder; Meanwhile, by the second atomizer adding, the low-pressure inert gas-neon ejecting from second nozzle reduces the oxidation of metal and alloy, reduces the oxygen content of powder.The powder that the combined type powder by atomization device hydraulic atomized, the protection of low pressure neon of the present invention's design obtains after flouring technology finishes can be realized spherical, and particle diameter is even, oxygen content is low.
accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of a kind of powder metallurgy high-pressure water atomized powder making device of the present invention.
In figure: 2, bottom pour ladle, 4, catheter, 6, powder storage tank, the 8, first atomizer, the 10, second atomizer, the 12, first mist pipe, the 14, first nozzle, the 16, second mist pipe, 18, second nozzle, 20, high pressure hydroecium ，22, low-pressure chamber.
The specific embodiment
In order to make those skilled in the art person understand better the present invention program, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with embodiment and embodiment accompanying drawing, the present invention is further detailed explanation.
As shown in Figure 1, a kind of powder metallurgy high-pressure water atomized powder making device, comprise the case shape bottom pour ladle 2 that stores molten metal for being incubated, be arranged under bottom pour ladle 2 and with the catheter 4 of its internal communication, and be arranged on the powder storage tank 6 under catheter 4, it also comprises the first atomizer 8 that is arranged between catheter 4 and powder storage tank 6 and arranges from top to bottom, the second atomizer 10, the first atomizer 8 comprise the first mist pipe 12 and be arranged on its one end and with the first nozzle 14 of its internal communication, the other end of the first mist pipe 8 is communicated with for add the high pressure hydroecium 20 of water under high pressure to the first mist pipe 8, the second atomizer 10 comprise the second mist pipe 16 and be arranged on its one end and with the second nozzle 18 of its internal communication, the other end of the second mist pipe 16 is communicated with for add the low-pressure chamber 22 of low-pressure gas to the second mist pipe 16.
The water under high pressure ejecting from the first nozzle 14 in atomization focus, the metal liquid stream cut-out of flowing through, dispersion, cracking are become fine droplet then cure obtain powder; The low-pressure inert gas ejecting from second nozzle 18 reduces the oxidation of metal and alloy, reduces the oxygen content of powder.The powder that the present invention is hydraulic atomized by designing, the combined type powder by atomization device of low-pressure inert gas protection obtains after flouring technology finishes can be realized spherical, and particle diameter is even, oxygen content is low.
Nozzle is vital parts in water atomization pulverization device, through experimental study repeatedly, find, by the control to water, gas jet angle, can better control the particle size uniformity of powder and the systematicness of profile, for this reason, the present invention preferably the first nozzle 14 for the angle α between circumferential weld nozzle ，Qie Qi center spray line and the axis of catheter 4 be 21 ~ 25 °, the angle β between the central-injection line of second nozzle 18 and the axis of catheter 4 is 22.5 ~ 25 °.
In order further to improve the uniformity of powder diameter, it is 10 ~ 15MPa to the hydraulic pressure of the water under high pressure adding in the first mist pipe 12 that the present invention limits high pressure hydroecium 20.
Low-pressure chamber 22 is neon to the low-pressure gas adding in the second mist pipe 16, adopts inert gas neon to carry out the activity gas in air-isolation, reduces itself and the oxidation of metal and alloy, the oxygen content of reduction powder.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify and all should be equivalent substitute mode, within being included in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (6)
1. a powder metallurgy high-pressure water atomized powder making device, comprise the case shape bottom pour ladle that stores molten metal for being incubated, be arranged under described bottom pour ladle and with the catheter of its internal communication, and be arranged on the powder storage tank under described catheter, it is characterized in that: between described catheter and powder storage tank, be also provided with the first atomizer from top to bottom, the second atomizer, described the first atomizer comprise the first mist pipe and be arranged on its one end and with the first nozzle of its internal communication, described the second atomizer comprise the second mist pipe and be arranged on its one end and with the second nozzle of its internal communication.
2. a kind of powder metallurgy high-pressure water atomized powder making device according to claim 1, it is characterized in that: the other end of described the first mist pipe is communicated with for add the high pressure hydroecium of water under high pressure, the other end of described the second mist pipe to be communicated with for add the low-pressure chamber of low-pressure gas to the second mist pipe to the first mist pipe.
3. a kind of powder metallurgy high-pressure water atomized powder making device according to claim 2, is characterized in that: described the first nozzle is that the angle between circumferential weld nozzle ，Qie Qi center spray line and the axis of described catheter is 21 ~ 25 °.
4. a kind of powder metallurgy high-pressure water atomized powder making device according to claim 2, is characterized in that: central-injection line and the angle between the axis of described catheter of described second nozzle are 22.5 ~ 25 °.
5. a kind of powder metallurgy high-pressure water atomized powder making device according to claim 2, is characterized in that: described high pressure hydroecium is 10 ~ 15MPa to the hydraulic pressure of the water under high pressure adding in the first mist pipe.
6. a kind of powder metallurgy high-pressure water atomized powder making device according to claim 2, is characterized in that: described low-pressure chamber is neon to the low-pressure gas adding in the second mist pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310414420.XA CN103600084A (en) | 2013-09-12 | 2013-09-12 | Powder metallurgy high-pressure water atomization pulverizing device |
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| CN201310414420.XA CN103600084A (en) | 2013-09-12 | 2013-09-12 | Powder metallurgy high-pressure water atomization pulverizing device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493187A (en) * | 2014-12-25 | 2015-04-08 | 安徽旭晶粉体新材料科技有限公司 | Spray atomization process used in process of preparing metal powder by water atomization |
| CN104858431A (en) * | 2015-05-28 | 2015-08-26 | 江苏共昌轧辊股份有限公司 | Non-restriction type metal atomization and deposition spray nozzle system |
| CN105290412A (en) * | 2015-11-03 | 2016-02-03 | 曾克里 | Atomizing method and device for preparing superfine near-spherical low-oxygen metal powder |
| CN105618773A (en) * | 2016-03-21 | 2016-06-01 | 南京理工大学 | Gas atomization device for preparing 3D printing metal powder |
| CN106694895A (en) * | 2017-03-13 | 2017-05-24 | 湖南旭博冶金科技有限公司 | Water and air combined atomizing powder making device |
| CN107427926A (en) * | 2015-03-30 | 2017-12-01 | 杰富意钢铁株式会社 | The manufacture method of water atomization metal dust |
| CN107570712A (en) * | 2016-07-04 | 2018-01-12 | 现代自动车株式会社 | Method and apparatus for producing iron powder |
| CN107626929A (en) * | 2017-08-04 | 2018-01-26 | 米亚索乐装备集成（福建）有限公司 | A kind of method for preparing alloy powder |
| CN109909510A (en) * | 2019-04-01 | 2019-06-21 | 江苏双宇镍业高科有限公司 | The preparation facilities and its preparation process of the extra-fine nickel powder of high-purity high uniformity |
| CN110653377A (en) * | 2019-10-18 | 2020-01-07 | 郑州机械研究所有限公司 | Gas-water coupling preparation method of metastable silicon brass particles |
-
2013
- 2013-09-12 CN CN201310414420.XA patent/CN103600084A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493187A (en) * | 2014-12-25 | 2015-04-08 | 安徽旭晶粉体新材料科技有限公司 | Spray atomization process used in process of preparing metal powder by water atomization |
| CN107427926B (en) * | 2015-03-30 | 2019-10-29 | 杰富意钢铁株式会社 | The manufacturing method of water atomization metal powder |
| US10589356B2 (en) | 2015-03-30 | 2020-03-17 | Jfe Steel Corporation | Method for producing water-atomized metal powder |
| CN107427926A (en) * | 2015-03-30 | 2017-12-01 | 杰富意钢铁株式会社 | The manufacture method of water atomization metal dust |
| CN104858431A (en) * | 2015-05-28 | 2015-08-26 | 江苏共昌轧辊股份有限公司 | Non-restriction type metal atomization and deposition spray nozzle system |
| CN104858431B (en) * | 2015-05-28 | 2017-05-03 | 江苏共昌轧辊股份有限公司 | Non-restriction type metal atomization and deposition spray nozzle system |
| CN105290412A (en) * | 2015-11-03 | 2016-02-03 | 曾克里 | Atomizing method and device for preparing superfine near-spherical low-oxygen metal powder |
| CN105618773A (en) * | 2016-03-21 | 2016-06-01 | 南京理工大学 | Gas atomization device for preparing 3D printing metal powder |
| CN107570712A (en) * | 2016-07-04 | 2018-01-12 | 现代自动车株式会社 | Method and apparatus for producing iron powder |
| CN107570712B (en) * | 2016-07-04 | 2022-03-11 | 现代自动车株式会社 | Method and apparatus for producing iron powder |
| CN106694895A (en) * | 2017-03-13 | 2017-05-24 | 湖南旭博冶金科技有限公司 | Water and air combined atomizing powder making device |
| CN107626929A (en) * | 2017-08-04 | 2018-01-26 | 米亚索乐装备集成（福建）有限公司 | A kind of method for preparing alloy powder |
| CN109909510A (en) * | 2019-04-01 | 2019-06-21 | 江苏双宇镍业高科有限公司 | The preparation facilities and its preparation process of the extra-fine nickel powder of high-purity high uniformity |
| CN110653377A (en) * | 2019-10-18 | 2020-01-07 | 郑州机械研究所有限公司 | Gas-water coupling preparation method of metastable silicon brass particles |
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Application publication date: 20140226 |