CN201186352Y - Build-up nozzle and alloy powder vertical atomization apparatus thereof - Google Patents
Build-up nozzle and alloy powder vertical atomization apparatus thereof Download PDFInfo
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- CN201186352Y CN201186352Y CNU2008200564517U CN200820056451U CN201186352Y CN 201186352 Y CN201186352 Y CN 201186352Y CN U2008200564517 U CNU2008200564517 U CN U2008200564517U CN 200820056451 U CN200820056451 U CN 200820056451U CN 201186352 Y CN201186352 Y CN 201186352Y
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Abstract
The utility model discloses a composite nozzle and a vertical gas-atomizing device of alloy powder of the nozzle, the composite nozzle comprises a main nozzle and an auxiliary nozzle, wherein the main nozzle and the auxiliary nozzle are fixedly connected with each other, the main nozzle is provided with a plurality of first nozzles which are used for carrying out the conical injection, and the auxiliary nozzle is provided with a plurality of second nozzles which are used for carrying out the annular parallel injection. The composite nozzle and the vertical gas-atomizing device of the alloy powder of the nozzle reduce satellite ball powder and hollow ball powder and improve the quality of the powder products.
Description
Technical field
The utility model relates to a kind of atomising device of alloy powder, particularly a kind of combined nozzle and alloy powder vertical gas atomising device thereof.
Background technology
Cobalt-based, Ni-based, the contour alloy powder of iron-based are widely used on aviation, metallurgy, automobile, chemical industry valve, oil field and all kinds of plant equipment, and its main using method is stiff dough surfacing and powder metallurgy.
Aerosolization method powder-making technique is the main method of producing alloy powder in the world at present, its principle is: after the chemical composition batching according to alloy designations, behind intermediate frequency furnace heat fused metal material, motlten metal is by certain casting rate, pass through atomizer, in airtight spray chamber, (be full of pure nitrogen gas in the spray chamber, it is following that oxygen content is lower than 200PPm) impact the alloy fluidization tower by high speed nitrogen, form tiny alloy liquid droplet, alloy liquid droplet is done freely falling body flight in spray chamber, simultaneously a large amount of normal temperature nitrogen flows into spray chamber, and the alloy liquid droplet that flies was frozen into tiny powder 0.5～1 second moment.
Atomization process is a complex process, presses the interactional essence of atomizing medium and metal liquid stream, and existing physical mechanical effect has physicochemical change again.High speed airflow is the power of broken molten metal, is again the cooling agent of metal liquid stream.Therefore existing energy exchange between atomizing medium is with metal liquid stream has exchange heat again.And the viscosity of liquid metal and surface tension constantly change in atomization process and cooling procedure, and the chemical action of liquid metal and atomizing medium, make atomization process become comparatively complicated.According to the mode difference of atomization gas to the metal liquid stream effect, atomizing has various ways: air-flow is parallel parallel injection with metal liquid stream, air-flow is vertical vertical injection with metal liquid stream, the injection at an angle to each other at an angle of air-flow and metal liquid stream, this injection at an angle to each other comprises several forms such as V-arrangement injection, conical jet and rotary annular injection.
Nozzle is to make atomizing medium obtain high-energy, high-speed parts in the atomising device, and it plays an important role to the stability of nebulization efficiency and atomization process.Nozzle should be able to make atomizing medium obtain high as far as possible muzzle velocity and energy needed; Can guarantee to form between atomizing medium and the metal liquid stream rational ejector angle; Make metal liquid stream become tangible turbulent flow; The job stability of nozzle will be got well in addition, and atomization process can be not blocked, and convenient processing and manufacture.
Conventional nozzle is divided by structure can be divided into two classes basically:
1, free fall style nozzle: metal liquid stream export to from container (bottom pour ladle) and the atomizing medium engagement point between free-falling without restrictions.The nozzle of most gas atomizations all adopts this form.
2, restraint-type nozzle: metal liquid stream promptly is broken at nozzle exit.The nozzle of this form transmits the energy maximum of gas to metal, is mainly used in the atomizing of low-melting-point metal.
The shortcoming of above-mentioned conventional nozzle is: conventional nozzle is in atomization process, by a jet atomization, the alloy fluidization tower becomes alloy liquid droplet not of uniform size and particle, because a gas jet thermal capacity is little, makes many bulky grain drops have little time to solidify, in flight decline process, frequent contacting takes place with drop in particle, and particle promptly forms satellite ball powder just attached on the drop after the cooling, the big drop of part freely disintegrates in the decline process, is easy to generate the hollow ball powder; The powder morphology that uses conventional nozzle to produce is irregular, and powder flowbility is poor, and hollow proportion of powder height is about 5%; The size distribution deviation of atomized powder is big, and the powder yield rate is low, generally about 30-40%, and the quality instability of powder-product.
The utility model content
The technical problems to be solved in the utility model is in order to overcome the high and low defective of powder yield rate of prior art hollow core proportion of powder, a kind of combined nozzle and alloy powder vertical gas atomising device thereof are provided, this combined nozzle and alloy powder vertical gas atomising device thereof have reduced satellite ball powder and hollow ball powder, have improved the quality of powder-product.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of combined nozzle, its substantive distinguishing features is, it comprises a main burner and a pilot jet, this main burner and this pilot jet are mutually permanently connected, this main burner has first spray orifice of a plurality of enforcement conical jets, and this pilot jet has second spray orifice of the annular parallel injection of a plurality of enforcements.
Another technical scheme of the present invention provides a kind of alloy powder vertical gas atomising device, and its substantive distinguishing features is that it comprises a tundish, and this tundish bottom is provided with one and lets slip a remark; One be located at this tundish below as above-mentioned combined nozzle, this combined nozzle includes a main burner and a pilot jet, this main burner and this pilot jet are mutually permanently connected, this main burner has first spray orifice of a plurality of enforcement conical jets, and this pilot jet has second spray orifice of the annular parallel injection of a plurality of enforcements; One is located at the refractory brick cover in the middle of this combined nozzle, and this refractory brick cover has a through hole, and leting slip a remark in this through hole and the tundish is corresponding.
Wherein, described main burner and described pilot jet are mutually permanently connected by securing member.
Wherein, described securing member is the combination of hex screw and hex nut.
Wherein, described second spray orifice is positioned at the periphery of first spray orifice.
Wherein, described refractory brick cover is simultaneously between two first relative spray orifices and between two second relative spray orifices.
Positive progressive effect of the present utility model is:
1, reduces bulky grain, the suitable proportion of powder that obtains is improved, promptly improved yield rate, reached 50-70%;
2, reduced satellite ball powder, made powder surface Paint Gloss, the friction between powder reduces, and mobile performance improves;
3, the hollow rate of powder descends greatly, drops to below 1% by original 5%;
4, reduce satellite ball powder and hollow ball powder, the bulk density of powder is improved, promptly improved loose dress ratio;
5, atomization gas, electric energy, labour cost have been saved.
Description of drawings
Fig. 1 is the structural representation of the utility model alloy powder vertical gas atomising device one embodiment.
The specific embodiment
Lift a preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the utility model alloy powder vertical gas atomising device one embodiment, as shown in Figure 1, alloy powder vertical gas atomising device of the present utility model comprises: a tundish 10, alloying metal solution 20 is deposited in this tundish 10, and these tundish 10 bottoms are provided with one and let slip a remark 101; One combined nozzle is located at this tundish 10 belows, this combined nozzle comprises a main burner 40 and a pilot jet 50, this main burner 40 and this pilot jet 50 are mutually permanently connected by the securing member (not shown), this securing member can be combination of hex screw and hex nut etc., this main burner 40 has a plurality of first spray orifices 401 and implements conical jet, this pilot jet 50 has a plurality of second spray orifices 501 and implements annular parallel injection, and second spray orifice 501 is positioned at the periphery of first spray orifice 401.In the middle of this combined nozzle, also be provided with refractory brick cover 30, this refractory brick cover 30 is simultaneously between two first relative spray orifices 401 and between two second relative spray orifices 501, this refractory brick cover 30 has a through hole 301, leting slip a remark in this through hole 301 and the tundish 10 is 101 corresponding, and alloying metal solution 20 forms alloying metal liquid stream 21 by this through hole 301 backs and flows out.
The application of the utility model alloy powder vertical gas atomising device is described below, to explain the detailed process of aerosolization powder process with a concrete example.
Alloying metal solution 20 in the tundish 10 by let slip a remark 101 and through hole 301 back form alloying metal liquid stream 21, first stream of nitrogen gas 402 of first spray orifice, 401 ejections of main burner 40 is impacted alloying metal liquid stream 21 and is carried out the broken and cooling for the first time first time, forms tiny molten drop 60; 502 pairs of molten drops of second stream of nitrogen gas 60 that second spray orifice, 501 parallel injections of pilot jet 50 go out carry out the broken and cooling for the second time second time, retrain molten drop 60 horizontal flights simultaneously, accelerate the powder decrease speed, can prevent that molten drop from sticking on the small metal ball of high temperature, guarantee that powder is spherical good, reduce significantly in " satellite ball powder ", second-time breakage that visible pilot jet is implemented and secondary cooling are obvious to improving the effect of powder total quality.
In sum, combined nozzle of the present utility model and alloy powder vertical gas atomising device thereof have been obtained following technique effect:
1, reduces bulky grain, the suitable proportion of powder that obtains is improved, promptly improved yield rate, reached 50-70%;
2, reduced satellite ball powder, made powder surface Paint Gloss, the friction between powder reduces, and mobile performance improves;
3, the hollow rate of powder descends greatly, drops to below 1% by original 5%;
4, reduce satellite ball powder and hollow ball powder, the bulk density of powder is improved, promptly improved loose dress ratio;
5, atomization gas, electric energy, labour cost have been saved.
Though more than described the specific embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these embodiments.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (6)
1, a kind of combined nozzle, it is characterized in that it comprises a main burner and a pilot jet, this main burner and this pilot jet are mutually permanently connected, this main burner has first spray orifice of a plurality of enforcement conical jets, and this pilot jet has second spray orifice of the annular parallel injection of a plurality of enforcements.
2, combined nozzle as claimed in claim 1 is characterized in that, described main burner and described pilot jet are mutually permanently connected by securing member.
3, combined nozzle as claimed in claim 2 is characterized in that, described securing member is the combination of hex screw and hex nut.
4, combined nozzle as claimed in claim 1 is characterized in that, described second spray orifice is positioned at the periphery of first spray orifice.
5, a kind of alloy powder vertical gas atomising device is characterized in that it comprises:
One tundish, this tundish bottom is provided with one and lets slip a remark;
One be located at this tundish below as each described combined nozzle of claim 1-4;
One is located at the refractory brick cover in the middle of this combined nozzle, and this refractory brick cover has a through hole, and leting slip a remark in this through hole and the tundish is corresponding.
6, combined nozzle as claimed in claim 5 is characterized in that, described refractory brick cover is simultaneously between two first relative spray orifices and between two second relative spray orifices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200564517U CN201186352Y (en) | 2008-03-21 | 2008-03-21 | Build-up nozzle and alloy powder vertical atomization apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200564517U CN201186352Y (en) | 2008-03-21 | 2008-03-21 | Build-up nozzle and alloy powder vertical atomization apparatus thereof |
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| Publication Number | Publication Date |
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| CN201186352Y true CN201186352Y (en) | 2009-01-28 |
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| CNU2008200564517U Expired - Lifetime CN201186352Y (en) | 2008-03-21 | 2008-03-21 | Build-up nozzle and alloy powder vertical atomization apparatus thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885064A (en) * | 2010-06-30 | 2010-11-17 | 山西汾西重工有限责任公司 | Liquid metal spraying double-level atomizing nozzle device |
| CN101966589A (en) * | 2010-11-13 | 2011-02-09 | 河南理工大学 | Composite atomizer for manufacturing gas atomization quick-coagulation spherical superfine metal powder |
| CN102151836A (en) * | 2010-11-30 | 2011-08-17 | 湖南金天铝业高科技有限公司 | Secondary crushing process and device of pulverized aluminum powder |
| CN105290412A (en) * | 2015-11-03 | 2016-02-03 | 曾克里 | Atomizing method and device for preparing superfine near-spherical low-oxygen metal powder |
| CN105562700A (en) * | 2015-12-31 | 2016-05-11 | 龙岩紫荆创新研究院 | Plasma preparation method of spherical titanium powder for 3D printing |
| CN106513692A (en) * | 2016-12-30 | 2017-03-22 | 湖南航天新材料技术研究院有限公司 | Atomizing nozzle and method for producing powder |
| CN108067626A (en) * | 2016-11-15 | 2018-05-25 | 镇江市润州金山金属粉末厂 | A kind of vertical gas atomization device of production of aluminum powder |
| CN108941589A (en) * | 2018-07-30 | 2018-12-07 | 北京矿冶科技集团有限公司 | Preparation can method of the wholegrain degree applied to the GH4169 powder of increasing material manufacturing |
| CN108971505A (en) * | 2018-10-12 | 2018-12-11 | 南方科技大学 | A kind of apparatus for preparing metal powder and preparation method |
| CN109175390A (en) * | 2018-10-12 | 2019-01-11 | 中国航发北京航空材料研究院 | A kind of device reducing Ni-base Superalloy Powder centre halfback celestial body |
| CN109482895A (en) * | 2019-01-22 | 2019-03-19 | 上海材料研究所 | A kind of aerosolization preparation method of the low satellite ball metal powder of 3D printing |
| CN109676145A (en) * | 2019-02-18 | 2019-04-26 | 上海材料研究所 | A kind of aerosolization spray disk of controllable metal liquid flowing speed |
| CN109746456A (en) * | 2019-03-20 | 2019-05-14 | 湖南骅骝新材料有限公司 | A kind of gas atomization method and device thereof preparing alloy magnetic abrasive |
| CN110102770A (en) * | 2019-06-26 | 2019-08-09 | 北京七弟科技有限公司 | A kind of function and service aerosolization nozzle and equipment |
| CN111496264A (en) * | 2020-05-27 | 2020-08-07 | 安泰（霸州）特种粉业有限公司 | Alloy powder preparation device and method |
-
2008
- 2008-03-21 CN CNU2008200564517U patent/CN201186352Y/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885064A (en) * | 2010-06-30 | 2010-11-17 | 山西汾西重工有限责任公司 | Liquid metal spraying double-level atomizing nozzle device |
| CN101885064B (en) * | 2010-06-30 | 2011-12-14 | 山西汾西重工有限责任公司 | Liquid metal spraying double-level atomizing nozzle device |
| CN101966589A (en) * | 2010-11-13 | 2011-02-09 | 河南理工大学 | Composite atomizer for manufacturing gas atomization quick-coagulation spherical superfine metal powder |
| CN101966589B (en) * | 2010-11-13 | 2012-04-25 | 河南理工大学 | Composite atomizer for manufacturing gas atomization quick-coagulation spherical superfine metal powder |
| CN102151836A (en) * | 2010-11-30 | 2011-08-17 | 湖南金天铝业高科技有限公司 | Secondary crushing process and device of pulverized aluminum powder |
| CN105290412A (en) * | 2015-11-03 | 2016-02-03 | 曾克里 | Atomizing method and device for preparing superfine near-spherical low-oxygen metal powder |
| CN105562700A (en) * | 2015-12-31 | 2016-05-11 | 龙岩紫荆创新研究院 | Plasma preparation method of spherical titanium powder for 3D printing |
| CN108067626A (en) * | 2016-11-15 | 2018-05-25 | 镇江市润州金山金属粉末厂 | A kind of vertical gas atomization device of production of aluminum powder |
| CN106513692A (en) * | 2016-12-30 | 2017-03-22 | 湖南航天新材料技术研究院有限公司 | Atomizing nozzle and method for producing powder |
| CN106513692B (en) * | 2016-12-30 | 2018-05-25 | 长沙新材料产业研究院有限公司 | A kind of atomizer and method for being used to produce powder |
| CN108941589A (en) * | 2018-07-30 | 2018-12-07 | 北京矿冶科技集团有限公司 | Preparation can method of the wholegrain degree applied to the GH4169 powder of increasing material manufacturing |
| CN108971505A (en) * | 2018-10-12 | 2018-12-11 | 南方科技大学 | A kind of apparatus for preparing metal powder and preparation method |
| CN109175390A (en) * | 2018-10-12 | 2019-01-11 | 中国航发北京航空材料研究院 | A kind of device reducing Ni-base Superalloy Powder centre halfback celestial body |
| CN108971505B (en) * | 2018-10-12 | 2023-10-20 | 南方科技大学 | Metal powder preparation device and preparation method |
| CN109482895A (en) * | 2019-01-22 | 2019-03-19 | 上海材料研究所 | A kind of aerosolization preparation method of the low satellite ball metal powder of 3D printing |
| CN109676145A (en) * | 2019-02-18 | 2019-04-26 | 上海材料研究所 | A kind of aerosolization spray disk of controllable metal liquid flowing speed |
| CN109746456A (en) * | 2019-03-20 | 2019-05-14 | 湖南骅骝新材料有限公司 | A kind of gas atomization method and device thereof preparing alloy magnetic abrasive |
| CN110102770A (en) * | 2019-06-26 | 2019-08-09 | 北京七弟科技有限公司 | A kind of function and service aerosolization nozzle and equipment |
| CN111496264A (en) * | 2020-05-27 | 2020-08-07 | 安泰（霸州）特种粉业有限公司 | Alloy powder preparation device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI ZHONGZHOU SPECIAL ALLOY MATERIAL CO., LTD Free format text: FORMER NAME: SHANGHAI ZHONGZHOU SPECIAL ALLOY MATERIALS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201815 No. 579, Sheng Shi Road, Jiading Industrial Zone, Shanghai, Jiading District Patentee after: SHANGHAI ZHONGZHOU SPECIAL ALLOY MATERIALS CO., LTD. Address before: 201815 No. 579, Sheng Shi Road, Jiading Industrial Zone, Shanghai, Jiading District Patentee before: Shanghai Zhongzhou Special Alloy Materials Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20090128 |
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| CX01 | Expiry of patent term |