Method for producing a monocrystalline or polycrystalline semiconductore material
    43.
    发明申请
    Method for producing a monocrystalline or polycrystalline semiconductore material 有权
    用于制造单晶或多晶半导体材料的方法

    公开(公告)号:US20090158993A1

    公开(公告)日:2009-06-25

    申请号:US12334646

    申请日:2008-12-15

    IPC分类号: C30B11/06

    摘要: The invention relates to a method for producing a monocrystalline or polycrystalline semiconductor material by way of directional solidification, wherein lumpy semiconductor raw material is introduced into a melting crucible and melted therein and directionally solidified, in particular using the vertical gradient freeze method.In order to prevent contamination and damage, the semiconductor raw material is melted from the upper end of the melting crucible. The molten material trickles downward, so that semiconductor raw material which has not yet melted gradually slumps in the melting crucible. In this case, the additional semiconductor raw material is replenished to the melting crucible from above onto a zone of semiconductor raw material which has not yet melted or is not completely melted, in order at least partly to compensate for a volumetric shrinkage of the semiconductor raw material and to increase the filling level of the crucible.In order to reduce the melting-on time and to influence the thermal conditions in the system as little as possible, the semiconductor raw material to be replenished is heated by the purposeful introduction of heat to a temperature below the melting temperature of the semiconductor raw material and introduced into the container in the heated state.

    摘要翻译: 本发明涉及通过定向凝固制造单晶或多晶半导体材料的方法,其中将块状半导体原料引入熔融坩埚中并在其中熔融并定向凝固,特别是使用垂直梯度冷冻法。 为了防止污染和损坏,半导体原料从熔融坩埚的上端熔化。 熔融材料向下流动,使得尚未熔化的半导体原料在熔融坩埚中逐渐下降。 在这种情况下,附加的半导体原料从熔化坩埚从上方补充到尚未熔化或不完全熔化的半导体原料区域上,以至少部分地补偿半导体原料的体积收缩 材料并增加坩埚的填充水平。 为了尽可能少地减少熔化时间并影响系统中的热条件,通过有目的地将热量引导到低于半导体原料的熔​​融温度的温度来加热待补充的半导体原料 并以加热状态引入容器。

    METHOD FOR PRODUCING MONOCRYSTALLINE METAL OR SEMI-METAL BODIES
    45.
    发明申请
    METHOD FOR PRODUCING MONOCRYSTALLINE METAL OR SEMI-METAL BODIES 审中-公开
    生产单晶金属或半金属体的方法

    公开(公告)号:US20090047203A1

    公开(公告)日:2009-02-19

    申请号:US12191807

    申请日:2008-08-14

    IPC分类号: C01B33/00 C30B11/14

    CPC分类号: C30B11/14 C30B29/06

    摘要: The invention relates to the production of bulky monocrystalline metal or semi-metal bodies, in particular of a monocrystalline Si ingot, using the vertical gradient freeze (VGF) method by directional solidification of a melt in a melting crucible having a polygonal basic shape.According to the invention, the entire bottom of the melting crucible is completely covered with a thin seed crystal plate made of the monocrystalline semi-metal or metal. Throughout the procedure, the bottom of the melting crucible is kept below the melting temperature of the semi-metal or metal in order to prevent melting of the seed crystal plate.Monocrystalline ingots produced in this way are distinguished by a low average dislocation density of for example less than 105 cm−2, allowing the production of very efficient monocrystalline Si solar cells.

    摘要翻译: 本发明涉及使用垂直梯度冷冻(VGF)法通过在具有多边形基本形状的熔化坩埚中熔体的定向凝固来生产大体积单晶金属或半金属体,特别是单晶Si锭。 根据本发明,熔融坩埚的整个底部完全被由单晶半金属或金属制成的薄晶种板覆盖。 在整个过程中,熔融坩埚的底部保持低于半金属或金属的熔化温度,以防止晶种板熔化。 以这种方式生产的单晶锭的特征在于低平均位错密度例如小于105cm -2,允许生产非常有效的单晶Si太阳能电池。

    Process for producing an electrical contact
    47.
    发明申请
    Process for producing an electrical contact 审中-公开
    制造电接点的方法

    公开(公告)号:US20060108334A1

    公开(公告)日:2006-05-25

    申请号:US11228343

    申请日:2005-09-19

    IPC分类号: B23K26/34

    CPC分类号: H01H11/041 H01H2011/0087

    摘要: The invention relates to a process for producing an electrical contact, in which a coating that provides the contact is applied to a carrier by means of laser welding, such that a pulsed laser is employed as the coating material is introduced, in at least one laser pulse draw. The operating parameters are so selected that during the welding process the temperature in the welding area oscillates around the melting point, specifically in such a way that the melt alternately liquefies and again solidifies.

    摘要翻译: 本发明涉及一种用于制造电接触的方法,其中通过激光焊接将提供接触的涂层施加到载体上,使得在至少一个激光器中引入脉冲激光作为涂层材料 脉冲绘制 操作参数如此选择,使得在焊接过程中焊接区域中的温度围绕熔点振荡,特别是使得熔体交替液化并再次固化。

    Melting safety device for gas system of hydropneumatic pressure
accumulators
    49.
    发明授权
    Melting safety device for gas system of hydropneumatic pressure accumulators 失效
    液压气动蓄能器气体系统熔融安全装置

    公开(公告)号:US4922944A

    公开(公告)日:1990-05-08

    申请号:US335317

    申请日:1989-04-10

    IPC分类号: F16K17/38

    摘要: A melting safety device for discharging gas from the gas system of a hydropneumatic pressure reservoir or accumulator has a blocking element of a material which melts when exposed to an undue temperature increase. A normally closed valve can be opened by a control member which is prebiased for controlled movement by the force of a power drive. The blocking element is a mechanical blocking member which blocks the controlled movement of the control member prior to its melting, but permits the controlled movement of the control member upon melting.

    摘要翻译: 用于从液压气动压力储存器或蓄能器的气体系统排出气体的熔化安全装置具有当暴露于不适当的温度升高时熔化的材料的阻挡元件。 常闭阀可以由控制构件打开,该控制构件通过动力驱动力的作用而受到偏置控制。 阻挡元件是机械阻挡构件,其阻止控制构件在其熔化之前的受控运动,但允许控制构件在熔化时受到控制的移动。

    Hydraulic arrangement
    50.
    发明授权
    Hydraulic arrangement 有权
    液压装置

    公开(公告)号:US09091282B2

    公开(公告)日:2015-07-28

    申请号:US13517994

    申请日:2010-11-19

    摘要: A hydraulic arrangement includes at least one pressure unit connected to a hydraulic machine that is operable as a pump and a safety device for the pressure unit. The safety device includes pressure sensors configured to detect a pressure in the pressure unit and an electronic control unit that is connected to the pressure sensors. A delivery volume pumped by the hydraulic machine is configured to be controlled via the control unit.

    摘要翻译: 液压装置包括连接到液压机的至少一个压力单元,其可操作为泵和用于压力单元的安全装置。 安全装置包括构造成检测压力单元中的压力的​​压力传感器和连接到压力传感器的电子控制单元。 由液压机泵送的输送体积被配置成通过控制单元进行控制。