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    MAGNESIUM PRESSURE CASTING
    51.
    发明授权
    MAGNESIUM PRESSURE CASTING 有权
    镁铸造

    公开(公告)号：EP1137503B1

    公开(公告)日：2005-11-23

    申请号：EP98958739.9

    申请日：1998-11-30

    申请人： COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

    发明人： MURRAY, Morris, Taylor ,  COPE, Matthew, Alan

    IPC分类号： B22D17/00 ,  B22D17/12 ,  B22D17/30 ,  B22D21/00

    CPC分类号： B22D17/007 ,  B22D17/12 ,  B22D17/30 ,  B22D21/007 ,  Y10S164/90

    摘要： The provision or use, for the pressure casting of magnesium alloy in a molten or thixotropic state with a pressure casting machine having a mould or die which defines a die cavity, of a metal flow system which includes a die or mould tool means which defines at least one runner from which molten magnesium alloy is able to be injected into the die cavity. The metal flow system is of a form providing for control of metal flow velocities within the flow system, whereby substantially all of the metal flowing throughout the die cavity is in a viscous or semi-solid state. Filling of the die cavity is able to proceed progressively by semi-solid fronts of metal moving away from a gate or other site of injection. The flow of magnesium alloy from the runner may be via at least one controlled expansion region of the metal flow system in which region the metal flow is able to spread laterally, with respect to its direction of injection, with a resultant reduction in its flow velocity relative to its velocity in the runner.

    METHOD OF AND APPARATUS FOR PROCESSING OF SEMI-SOLID METAL ALLOYS
    52.
    发明公开
    METHOD OF AND APPARATUS FOR PROCESSING OF SEMI-SOLID METAL ALLOYS 有权
    方法和设备处理半固态金属合金的

    公开(公告)号：EP1594994A1

    公开(公告)日：2005-11-16

    申请号：EP04707593.2

    申请日：2004-02-03

    申请人： CSIR

    发明人： BRUWER, Retief ,  WILKINS, Jeremias, Daniel ,  IVANCHEV, Lillian, Hristov ,  ROSSOUW, Pierre ,  DAMM, Oliver Frank Rudolf August

    IPC分类号： C22C1/00

    CPC分类号： C22C1/005 ,  Y10S164/90

    摘要： Apparatus (10) for producing a semi-solid metal alloy from a molten charge includes vertically aligned treatment zones (12, 12.1) and (12.2) which are provided by vertically aligned passages defined by a plurality of spirally wound flow pipes (132) which are interspersed between spirally wound induction coils (130). A container (14) is mounted on a charging arrangement (20) which displaces a first charge upwardly into the first treatment zone (12). Successive charges are introduced in a similar fashion thereby urging the previously introduced charge upwardly along the train of zones (12, 12.1 and 12.2) until the leading charge is ejected from the top of the apparatus (10). The charge in each zone is subjected to controlled cooling and an induced electromagnetic field. The strength of the field and the rate of cooling are controlled to impede dendritic crystallisation and to promote globular primary crystal formation.

    SEMI-SOLID CASTING APPARATUS AND METHOD
    53.
    发明公开
    SEMI-SOLID CASTING APPARATUS AND METHOD 审中-公开
    VORRICHTUNG UND VERFAHREN ZUM GIESSEN HALBFESTER METALLE

    公开(公告)号：EP1121214A4

    公开(公告)日：2005-04-13

    申请号：EP99935826

    申请日：1999-07-22

    申请人： GIBBS DIE CASTING ALUMINUM ,  SEMI SOLID TECHNOLOGIES INC

    发明人： RICHARD KEVIN L ,  NEILL RICHARD I JR ,  RICE CHRISTOPHER S ,  MYOJIN SHINYA ,  MENDEZ PATRICIO F ,  GAGE TIMOTHY B ,  O'DANIEL JOHN F ,  BARRON CHARLES E

    IPC分类号： B22D45/00 ,  B22D17/00 ,  B22D17/10 ,  B22D17/14 ,  B22D17/20 ,  B22D17/28 ,  B22D17/30 ,  B22D17/32 ,  B22D17/08 ,  B22D1/00

    CPC分类号： B22D1/00 ,  B22D17/007 ,  B22D17/06 ,  B22D17/10 ,  B22D17/30 ,  Y10S164/90

    摘要： A die casting system includes a vessel (12) defining a reservoir (30) with a controlled heater (22) and an agitator (14) for maintaining the bath (16) of semi-solid metal (34) in a homogenous isothermal state, a transfer system (107) capable of transferring a known quantity (122) of metal in its semi-solid state to a mold cavity in a die casting machine, the transfer system (107) including a heated suction tube (108), a vacuum source for vacuum ladling semi-solid metal (34) from the bath (16) to a die, and a plunger tip (132) providing a path for free air flow to allow evacuation of the suction tube (108) during casting and a metal replacement system for replacing the known quantity (122) of transferred metal with a similar amount (126) of liquid metal (32) so that a stable homogenous isothermal bath (16) of semi-solid metal (34) is controllably maintained to be available for die casting operations.

    摘要翻译： 压铸系统包括限定具有受控加热器的储存器和用于将半固体金属浴保持在均匀等温状态的搅拌器的容器，能够将已知量的半固态金属转移到 压铸机中的模具腔，该转移系统包括一个加热的抽吸管，一个真空源，用于从浴槽到模具的半固体金属真空填充;以及柱塞头，提供自由空气流动的路径， 在铸造期间的吸管和用于用类似量的液态金属替换已知量的转移金属的金属替换系统，从而可控地保持半固体金属的稳定的均匀等温浴以用于压铸操作。