Apparatus and process for the manufacture of shaped bodies from silicon
granulates
    1.
    发明授权
    Apparatus and process for the manufacture of shaped bodies from silicon granulates 失效
    用于从硅颗粒制造成形体的装置和方法

    公开(公告)号:US4759887A

    公开(公告)日:1988-07-26

    申请号:US862006

    申请日:1986-05-12

    CPC分类号: C30B15/00 C01B33/02

    摘要: A process for the manufacture of shaped bodies from silicon granulates for producing silicon melts includes first incipiently melting silicon grains on their surfaces, so that they bond with their neighbors in the process and, after solidifying, form a porous compound shaped body which only then may be melted completely. Such compound shaped bodies can be manufactured continuously or semi-continuously and converted without difficulty by a subsequent step into the molten state. An apparatus for producing shaped bodies is also provided which preferably employs an electron beam, to supply energy to incipiently melt the granulate.

    摘要翻译: 用于制造硅熔融物的硅颗粒的成形体的制造方法包括首先在其表面上初始地熔化硅晶粒,使得它们在该过程中与其邻近物结合,并且在固化之后形成多孔化合物形状体, 完全融化 这种复合成型体可以连续或半连续地制造,并且在随后的步骤进入熔融状态时没有困难地转化。 还提供了一种用于生产成形体的装置,其优选地使用电子束来提供能量以便使颗粒初始地熔化。

    Process and apparatus for the semicontinuous production of silicon
moldings
    2.
    发明授权
    Process and apparatus for the semicontinuous production of silicon moldings 失效
    用于半连续生产硅模制品的工艺和设备

    公开(公告)号:US4175610A

    公开(公告)日:1979-11-27

    申请号:US925506

    申请日:1978-07-17

    CPC分类号: C30B29/06 C30B11/00

    摘要: The invention relates to a process and apparatus for manufacturing siliconastings or moldings, having a columnar structure of single-crystal regions of crystal with a preferential crystallographic orientation, and which can be manufactured cheaply and in large numbers in a semi-continuous mode of production. Liquid silicon is cast in a casting station, under an inert gas and preferably under reduced pressure, preferably in graphite molds which are exposed to a temperature gradient of 200.degree. to 1,000.degree. C. After cooling, the silicon is withdrawn automatically via a transport chamber connected to the casting station into special cooling stations, while the casting station is reloaded with an empty mold for repeating the process. The silicon blocks which have preferably been produced by this procedure are use as basic material for inexpensive solar cells having efficiencies of more than 10%, after they have been sawn into individual small wafers and have been doped and lead-bonded.

    摘要翻译: 本发明涉及一种用于制造硅铸件或模制品的方法和装置,其具有具有优先晶体取向的晶体单晶区域的柱状结构,并且可以以半连续的生产方式廉价地制造 。 液体硅在惰性气体中,优选在减压下浇铸,优选在暴露于200-1000℃的温度梯度的石墨模具中浇铸。冷却后,硅经由输送室 连接到铸造站到特殊的冷却站,而铸造站重新装入空模以重复该过程。 优选通过该方法制造的硅块在已经被锯切成单独的小晶片并已经被掺杂和引线键合之后,被用作效率高于10%的廉价太阳能电池的基本材料。