发明授权
- 专利标题: Process for producing spheroidal metal particles
- 专利标题(中): 生产球状金属颗粒的方法
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申请号: US909117申请日: 1986-07-29
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公开(公告)号: US4744821A公开(公告)日: 1988-05-17
- 发明人: Ritsue Yabuki , Junya Ohe
- 申请人: Ritsue Yabuki , Junya Ohe
- 申请人地址: JPX Tokyo
- 专利权人: Mitsubishi Kinzoku Kabushiki Kaisha
- 当前专利权人: Mitsubishi Kinzoku Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 主分类号: B22F1/00
- IPC分类号: B22F1/00 ; B22F9/08 ; B22D23/08
摘要:
A process for producing metal granules from a molten metal or molten alloy in a refractory vessel by dropping small globules of the melt into a coolant through a small-diameter nozzle provided at the bottom of said refractory vessel is disclosed. The nozzle has one or more vertical holes of an inside diameter of 0.3 to 3.0 mm; the globules of the melt emerging from said nozzle are dropped into a two-layered cooling medium composed of an overlying oil layer having a viscosity grade of 10-680 according to the ISO VG and underlying water layer; said globules are solidified and cooled as they pass through said cooling medium. Spherical metal particles having a uniform size can be produced efficiently in a high yield.
公开/授权文献
- US5248846A Musical instrument incorporating a Helmholtz resonator 公开/授权日:1993-09-28
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