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    Thixotropic forming process for wheels fashioned in rheocast metal alloy
    1.
    发明公开
    Thixotropic forming process for wheels fashioned in rheocast metal alloy 失效
    Verfahren zur thixotropischen Verformung vonRädernaus Rheocast Metallegierungen

    公开(公告)号：EP0710515A1

    公开(公告)日：1996-05-08

    申请号：EP95830240.8

    申请日：1995-06-08

    申请人： REYNOLDS WHEELS INTERNATIONAL LTD.

    发明人： Baldi, Valter ,  Benni, Gianni ,  Muneratti, Giorgio

    IPC分类号： B21K1/00 ,  B21K1/38

    CPC分类号： B22D15/005 ,  B21J5/004 ,  B21K1/38 ,  B22D17/007

    摘要： The starting material in a thixotropic forming process for the manufacture of road wheels, fitted ultimately with pneumatic tyres, is an ingot (1) of rheocast metal alloy preheated to the semisolid state: the ingot is injected into a closed die (5) affording a cavity (7) in the shape of the wheel and equipped with independent thermoregulating circuits (6), routed and controlled in such a way as to maintain the wider passages (A) of the cavity at a temperature lower than that of the narrower passages (B); to ensure the die fills properly, the ingot (1) is injected at a variable and controlled velocity, correlated both to the rate at which the alloy spreads through the cavity (7) and to the geometry of the cavity itself, whereupon a pressure much higher than the injection force is applied to the solid-semisolid interface within the alloy, and sustained until full solidification is achieved.

    摘要翻译： 用于制造最终与充气轮胎一起制造的车轮的触变形成方法中的起始材料是预热至半固态的流变金属合金锭（1）：将锭注入封闭的模具（5）中， 空腔（7）以轮的形状配备有独立的温度调节回路（6），以使得空腔的较宽通道（A）保持在比较窄通道的温度低的温度 B）; 为了确保模具适当地填充，锭（1）以可变和受控的速度注入，与合金扩散通过空腔（7）的速率和空腔本身的几何形状相关，于是压力很大 高于对合金内的固体 - 半固态界面施加注射力，并持续至达到完全固化。

    A method and equipment for bringing metal alloy ingots, billets and the like to the semisolid or semiliquid state in readiness for thixotropic forming
    3.
    发明公开
    A method and equipment for bringing metal alloy ingots, billets and the like to the semisolid or semiliquid state in readiness for thixotropic forming 失效
    方法和装置的金属合金工件的加热至半固体或半液体状态在触变成形范围的目的

    公开(公告)号：EP0703300A1

    公开(公告)日：1996-03-27

    申请号：EP95830386.9

    申请日：1995-09-21

    申请人： REYNOLDS WHEELS INTERNATIONAL LTD.

    发明人： Benni, Gianni ,  Muneratti, Giorgio ,  Taddia, William ,  Bettarelli, Romano

    IPC分类号： C21D9/00 ,  C22C1/00 ,  B22D17/00

    CPC分类号： C21D9/0037 ,  C21D9/70 ,  C22C1/005 ,  Y10S164/90

    摘要： A method by which ingots (2) of thixotropic metal alloy are brought to the semisolid or semiliquid state comprises the steps of introducing the single solid ingots (2) at ambient temperature into a heat chamber (4), generating air currents within the chamber so that the ingots are heated principally by convection, controlling the temperature of the ingots, and removing them from the chamber after a predetermined temperature has registered and been held steady in the alloy for a duration sufficient to induce the semisolid or semiliquid state; the ingots (2) are supported and conveyed through a circular path internally of the chamber (4) by a set of radial platforms (16) revolving between an infeed zone (5) and an outfeed zone (6).

    摘要翻译： 通过该锭（2）触变金属合金被移送到半固体或半液体状态的方法，包括将所述单个实心锭（2）在环境温度下为热室（4）的步骤，产生在腔室中的空气流，以便 做了锭通过对流加热原则上，控制所述锭的温度，并从腔室去除它们的预定温度已注册并在该合金为足以诱导半固体或半液体状态的持续时间被保持稳定之后; 锭（2）被支持，并通过一个环形路径由一组径向平台（16）在进料区（5）和上输出区域之间旋转输送的内部腔室（4）（6）。

    A fluid-tight coupling device for a feeder pipe conveying molten material, in the connection of a low pressure diecasting machine to a receptacle containing the molten material
    5.
    发明公开
    A fluid-tight coupling device for a feeder pipe conveying molten material, in the connection of a low pressure diecasting machine to a receptacle containing the molten material 失效
    Vorrichtung zumflüssigkeitsdichtenVerbinden des Steigrohres in einer Niederdruckgiessanlage

    公开(公告)号：EP0714718A1

    公开(公告)日：1996-06-05

    申请号：EP95830482.6

    申请日：1995-11-15

    申请人： REYNOLDS WHEELS INTERNATIONAL LTD.

    发明人： Benni, Gianni ,  Muneratti, Giorgio

    IPC分类号： B22D18/04

    CPC分类号： B22D18/04

    摘要： A pipe (1) conveying molten material upwards from a pressurized receptacle into the mould (17) of a low pressure diecasting machine (2), positioned on and supported by the selfsame receptacle, is secured in a fluid-tight fit by an adjustable coupling device; the pipe (1) extends through the top wall (4) of the receptacle and comprises a body (5) of which one end extends into the receptacle so as to pick up the molten material and the other terminates in a head (6), located externally of the receptacle and tightened together with a seal (28) against the mould (17). The outer surface (10) of the pipe (1) presents at least one substantially frustoconical portion (13) matched to the surfaces (15) of three wedges (12), disposed circumferentially around the pipe and mounted on slide ways (20), which can be directed by suitable actuators (16) from an at-rest position to an operating position in which the pipe is subjected to an axial force and distanced from the receptacle, and the head (6) clamped together with the seal (28) against the machine (2).

    摘要翻译： 将熔融材料从加压的容器向上输送到位于同位素容器中并由其支撑的低压压铸机（2）的模具（17）中的管道（1）通过可调整的联接器固定在流体密封配合中 设备; 管（1）延伸穿过容器的顶壁（4），并且包括主体（5），其一端延伸到容器中，以便拾取熔融材料，另一端终止在头部（6）中， 位于容器的外部并且与密封件（28）一起紧固在模具（17）上。 管（1）的外表面（10）具有与三个楔形物（12）的表面（15）相匹配的至少一个基本截头圆锥形的部分（13），该三个楔形物周向设置在管周围并且安装在滑动通道（20）上， 其可以由适当的致动器（16）从静止位置引导到操作位置，其中管受到轴向力并与容器隔开，并且与密封件（28）夹紧在一起的头部（6） 对着机器（2）。