JP6922063B2 - 新規の密結合気噴霧化ノズル - Google Patents
新規の密結合気噴霧化ノズル Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
- B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
- B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
- B05B7/068—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet the annular gas outlet being supplied by a gas conduit having an axially concave curved internal surface just upstream said outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
- B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/088—Fluid nozzles, e.g. angle, distance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0892—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid casting nozzle; controlling metal stream in or after the casting nozzle
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
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Description
ノズル本体とフローガイド管を備える密結合ノズルであって、前記ノズル本体は、リング体であり、その中空の内環は、フローガイド管のフローガイド通路を置くように形成され、前記ノズル本体の内部には、環状の空気室が形成されるとともに、前記ノズル本体には、少なくとも1つの吸気通路が開設され、前記吸気通路の1端が、前記ノズル本体の側壁に開口され、他端が前記環状の空気室壁に開口され、これにより、環状の空気室を前記ノズル本体の外部に連通させ、前記環状の空気室の下部のノズル本体には、少なくとも第1の排気通路と第2の排気通路が開設され、前記第1の排気通路の1端が前記ノズル本体の下部に開口され、他端が前記環状の空気室壁に開口され、これにより、環状の空気室を前記ノズル本体の外部に連通させ、前記第2の排気通路の1端が前記ノズル本体の下部に開口され、他端が前記環状の空気室壁に開口され、これにより、環状の空気室を前記ノズル本体の外部に連通させ、ノズル本体の下部にある前記第1の排気通路の開口とノズルが吐出する液体経路との距離は、前記ノズル本体の下部にある前記第2の排気通路の開口とノズルが吐出する液体経路との距離よりも小さい、ことを特徴とする密結合ノズル。
2 ノズル本体の上部
3 空気室
4 フローガイド通路
5 第1の排気通路
6 第2の排気通路
7 ノズル本体の下部
8 第1のガスジェットの打撃点
9 第2のガスジェットの打撃点
10 液流経路
11 フローガイド管
Claims (1)
- ノズル本体とフローガイド管を備える密結合ノズルであって、
前記ノズル本体は、リング体であり、その中空の内環は、フローガイド管のフローガイド通路を置くように形成され、
前記ノズル本体の内部には、環状の空気室が形成されるとともに、前記ノズル本体には、少なくとも1つの吸気通路が開設され、
前記吸気通路の1端が、前記ノズル本体の側壁に開口され、他端が前記環状の空気室壁に開口され、これにより、環状の空気室を前記ノズル本体の外部に連通させ、
前記環状の空気室の下部のノズル本体には、少なくとも第1の排気通路と第2の排気通路が開設され、前記第1の排気通路の1端が前記ノズル本体の下部に開口され、他端が前記環状の空気室壁に開口され、これにより、環状の空気室を前記ノズル本体の外部に連通させ、前記第2の排気通路の1端が前記ノズル本体の下部に開口され、他端が前記環状の空気室壁に開口され、これにより、環状の空気室を前記ノズル本体の外部に連通させ、
ノズル本体の下部にある前記第1の排気通路の開口とノズルが吐出する液体経路との距離は、前記ノズル本体の下部にある前記第2の排気通路の開口とノズルが吐出する液体経路との距離よりも小さく、
前記第1の排気通路から吐出される空気流方向が、前記液流経路に交差する角度は、18°−24°であり、
前記第1の排気通路の数は、1つであり、形状は、環形隙間であり、
前記環形隙間の1端が前記環状の空気室に開口され、他端が前記ノズル本体の下部に開口され、
環形隙間の形状の前記第1の排気通路の内周面は、超音速ノズル型面であり、収縮部は、5次曲線又は二重3次曲線を用い、喉部から拡張部までは、MATLABにより計算プログラムを作成させ、
先ず、1次元フロー理論を用いてノズル出口マッハ数を推定し、そして、特性線法を用いて流れ場のコア面積を求めることにより、コア面積が設計マッハ数に達させ、さらに、質量保存と特性線により出口壁面点の位置を取得し、
二次関数により拡張部型面を取得し、特性線法により型面の他の位置のパラメータ座標を取得し、
前記第1の排気通路が環形空気室から始まる時、断面が弧線と直線の組み合わせの方式により徐々に先細りになり、安定した空気が第1の排気通路に流れることが得られ、
前記ノズル本体の下部にある前記第1の排気通路の開口の位置は、前記ノズル本体の下部にある前記第2の排気通路に開口の位置よりも高く、両者の開口の間に位置する前記ノズル本体の底面は、斜面遷移になり、
前記斜面と液流経路との角度は、45°−70°であることを特徴とする密結合ノズル。
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CN201911323841.5 | 2019-12-20 | ||
CN201911323841.5A CN110899713B (zh) | 2019-12-20 | 2019-12-20 | 一种新型紧耦合气雾化喷嘴 |
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CN111804925B (zh) * | 2020-09-11 | 2020-12-11 | 陕西斯瑞新材料股份有限公司 | 一种基于VIGA工艺制备GRCop-42球形粉的方法及装置 |
CN112091226B (zh) * | 2020-10-29 | 2024-05-28 | 佛山中研磁电科技股份有限公司 | 一种稳定型喷射装置 |
CN112809010A (zh) * | 2020-12-29 | 2021-05-18 | 辽宁冠达新材料科技有限公司 | 一种3d打印用gh5188钴基高温合金粉末的制备方法 |
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CN114969627B (zh) * | 2022-05-08 | 2024-09-03 | 中机新材料研究院(郑州)有限公司 | 一种气体雾化制粉用超音速环缝喷管型面设计方法 |
CN114751657A (zh) * | 2022-05-26 | 2022-07-15 | 武汉市汉泓福玻璃有限公司 | 镀膜钢化玻璃及其生产工艺 |
CN116604023B (zh) * | 2023-05-29 | 2023-11-21 | 中航迈特增材科技(北京)有限公司 | 一种雾化器及3d打印用银粉末的制备方法 |
CN117840444B (zh) * | 2024-03-07 | 2024-05-28 | 季华实验室 | 一种惰性气体加热气雾化设备 |
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JP2005139471A (ja) * | 2003-11-04 | 2005-06-02 | Daido Steel Co Ltd | ガスアトマイズノズル及びこれを用いた金属の溶解噴霧装置 |
JP2005213617A (ja) * | 2004-01-30 | 2005-08-11 | Daido Steel Co Ltd | ガスアトマイズ方法およびこれに用いるガスアトマイズ装置 |
JP4207954B2 (ja) * | 2005-12-20 | 2009-01-14 | セイコーエプソン株式会社 | 金属粉末製造装置 |
US9981315B2 (en) * | 2013-09-24 | 2018-05-29 | Iowa State University Research Foundation, Inc. | Atomizer for improved ultra-fine powder production |
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CN106180739B (zh) * | 2016-10-10 | 2018-08-14 | 江西悦安超细金属有限公司 | 一种用于制备微细球形粉体的气雾化喷嘴 |
CN206215920U (zh) * | 2016-11-21 | 2017-06-06 | 华南理工大学 | 一种制备3d打印球形金属粉末的双喷嘴雾化装置 |
CN206605034U (zh) * | 2017-01-22 | 2017-11-03 | 广州纳联材料科技有限公司 | 气雾化喷嘴及气雾化装置 |
CN107900366B (zh) * | 2017-12-27 | 2020-12-01 | 北京康普锡威科技有限公司 | 气雾化连续制备3d打印用钛或钛合金粉末的装置及方法 |
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