发明名称 |
Device and method for producing crystalline bodies by directional solidification |
摘要 |
The invention relates to a device and a method for producing crystalline bodies by directional solidification. The device comprises a melting furnace (11) having a heating chamber (12) in which at least one supporting surface (13) for a crucible (8) and at least one gas purging device arranged above the supporting surface (13) and having a gas outlet facing the supporting surface (13) are defined. An embodiment of the device is characterized in that the gas outlet is defined by one or more openings in a lower plunger surface of a plunger-shaped element (2) which has a geometry adapted to the inner shape of the crucible (8), said shape allowing an at least partial insertion of the plunger-shaped body (2) into the crucible (8). The gas purging device and/or the supporting surface (13) comprise an adjusting mechanism or are designed to be adjustable in such a manner that they allow an adjustment of a perpendicular distance between the supporting surface (13) and the plunger-shaped body (2). The device and the corresponding method allow carbon- and oxygen-containing materials to be discharged from the melt more efficiently and in a controlled manner. The device and the method thus allow—within certain limits—a specific adjustment of the carbon and oxygen content of the crystalline bodies. |
申请公布号 |
US8845805(B2) |
申请公布日期 |
2014.09.30 |
申请号 |
US200812866497 |
申请日期 |
2008.02.14 |
申请人 |
Solarworld Industries Sachsen GmbH |
发明人 |
Reimann Christian;Friedrich Jochen;Dietrich Marc |
分类号 |
C30B11/14;C30B29/06;C30B11/00 |
主分类号 |
C30B11/14 |
代理机构 |
Renner Kenner Greive Bobak Taylor & Weber |
代理人 |
Renner Kenner Greive Bobak Taylor & Weber |
主权项 |
1. A device for producing crystalline bodies by directional solidification, which encompasses a melting furnace with a heating chamber, in which are defined at least one supporting surface for a crucible having a lateral wall and floor, and at least one gas purging device arranged over the supporting surface with a gas outlet facing the supporting surface, characterized in that the gas outlet is formed by one or more openings in a lower plunger surface of a plunger-shaped body, which has a geometry adapted to the inner shape of the crucible, permitting at least a partial insertion of the plunger-shaped body into the crucible at a lateral distance to the lateral wall of the crucible, that the gas purging device and/or supporting surface are situated or mounted so that they can be adjusted in an axial direction, thereby enabling a change in the perpendicular distance between the supporting surface and plunger-shaped body, and that the plunger-shaped body has a continuous lateral projection at a distance from the lower plunger surface that makes it possible to completely cover an upper edge of the crucible. |
地址 |
Freiberg DE |