发明授权
- 专利标题: Method for the manufacture of powders from molten materials
- 专利标题(中): 从熔融材料制造粉末的方法
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申请号: US207120申请日: 1988-06-15
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公开(公告)号: US4897111A公开(公告)日: 1990-01-30
- 发明人: Sigurd Jonsson , Michael Hohmann , Gerhard Gross , Hans W. Bergmann
- 申请人: Sigurd Jonsson , Michael Hohmann , Gerhard Gross , Hans W. Bergmann
- 申请人地址: DEX Hanau am Main
- 专利权人: Leybold Aktiengesellschaft
- 当前专利权人: Leybold Aktiengesellschaft
- 当前专利权人地址: DEX Hanau am Main
- 优先权: DEX3730147 19870909
- 主分类号: B01J2/02
- IPC分类号: B01J2/02 ; B01J2/04 ; B22F9/08
摘要:
For a process for the manufacture of powders from molten materials by atomizing the melt to particles by means of fluid media and cooling the particles as they fall, a melting chamber (3) is provided which has a melting system (4) disposed in the melting chamber (3) and an atomizing tower (8) is provided which is associated with the atomizing system (9) and attached to the melting chamber (3). For the production of powders of finest particle size with high purity and uniformity, a plurality of nozzles (11, 12, . . .) which can be aimed in their holders at the molten stream, are used for projecting a low-boiling liquefied gas under a pressure of 50 to 700 bar against the molten stream (23) entering the atomizing tower (8).