发明授权
- 专利标题: Process and apparatus for producing precision castings
- 专利标题(中): 精密铸件生产工艺及设备
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申请号: US10126381申请日: 2002-04-19
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公开(公告)号: US06725902B2公开(公告)日: 2004-04-27
- 发明人: Matthias Blum , Georg Jarczyk , Hans-Günther Fellmann , Peter Busse
- 申请人: Matthias Blum , Georg Jarczyk , Hans-Günther Fellmann , Peter Busse
- 优先权: DE10120493 20010426
- 主分类号: B22D1300
- IPC分类号: B22D1300
摘要:
To produce precision castings from a melt, use is made of a metallic casting wheel (1) which has an annular distribution channel (4) and a plurality of interchangeable casting moulds (6), each having at least one filling opening (6a). The melt quantity per casting operation is chosen here such that the casting moulds (6) and the distribution channel (4) are filled with the melt upon the rotation of the casting wheel (1) about its axis (A—A), in such a way that after the solidification of the melt the precision castings are held together by a ring of the casting material which is formed in the distribution channel (4), the so-called circulating material for new casting processes, and are removed from the casting wheel (1) together with the casting moulds (6), whereupon the precision castings are separated from the ring. In order to be able to produce precision castings with complicated three-dimensional shapes, in particular with undercuts, by this means as well, the casting moulds (6), which can be used only once and are destructible for the purpose of demoulding, are selected from a ceramic material and are attached in a positive-locking and interchangeable manner to the casting wheel (1) and so as to protrude therefrom. As a result, the circulating material can be fed uncontaminated to a recycling process.
公开/授权文献
- US20020179275A1 Process and apparatus for producing precision castings 公开/授权日:2002-12-05
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