公开(公告)号：US4763717A

公开(公告)日：1988-08-16

申请号：US484355

申请日：1983-04-18

申请人： Pierre Lajoye

发明人： Pierre Lajoye

IPC分类号： B22D18/06 ,  B22D13/04 ,  B22D13/10 ,  B22D15/04 ,  B22D18/08

CPC分类号： B22D13/04

摘要： A method for melting and casting of metals and alloys and an apparatus using the method. The method consists of utilizing a compact assembly for melting and centrifugal casting of metals. The assembly includes a mold or chiller which is rotatable around a vertical axis. The mold communicates with a sealed lower housing containing an oven for the melting of the metal. The assembly is such that the interior chambers of both the oven and the mold are positioned in a vacuum during the entire time of the process of melting of the metal contained in the oven. The oven is movable vertically and is maintained in a position such that the lower extremity of a hollow vertical channel which feeds the mold, remains outside of the molten metal in the interior cavity of the oven when melting is occurring. Thus, the melting is accomplished entirely in a vacuum condition, thereby avoiding the formation of oxides or other chemical compounds.

摘要翻译： 金属和合金的熔融和铸造方法以及使用该方法的装置。 该方法包括使用紧凑的组件来熔化和离心铸造金属。 组件包括可围绕垂直轴线旋转的模具或冷却器。 模具与包含用于熔化金属的烘箱的密封下壳体连通。 该组件使得烤箱和模具的内部腔室在熔化包含在烤箱中的金属的整个时间期间位于真空中。 烤箱可以垂直移动并保持在这样的位置，使得当熔化时，馈送模具的中空垂直通道的下端保持在烘箱的内部空腔内的熔融金属的外部。 因此，熔化完全在真空条件下完成，从而避免氧化物或其它化合物的形成。

公开(公告)号：US4549339A

公开(公告)日：1985-10-29

申请号：US479308

申请日：1983-03-28

申请人： Pierre Lajoye

发明人： Pierre Lajoye

IPC分类号： B22D13/04 ,  B22D13/00 ,  B22D11/126 ,  B22D13/06

CPC分类号： B22D13/04 ,  Y10T29/49989

摘要： A method and an apparatus for manufacturing a hollow curved member, especially a curved pipe as well as the curved member or pipe produced by the method and apparatus. A blank is formed by rotating fluid material in a mold having a toroidal cavity about an axis displaced a predetermined distance from the mean longitudinal axis of the cavity and solidifying the fluid material. The blank is removed from the mold and a toroidal inner surface is machined into the blank so as to provide a passageway therethrough. In the preferred embodiment, the toroidal cavity is circular in cross-section and has a circular arcuate axis and the inner surface is machined into the blank coaxial with the outer surface of the blank.

摘要翻译： 一种用于制造中空弯曲构件，特别是曲线管的方法和装置以及通过该方法和装置制造的弯曲构件或管。 通过在具有环形空腔的模具中旋转流体材料形成坯料，该环形空腔围绕与空腔的平均纵向轴线偏移预定距离并固化流体材料的轴线。 将坯料从模具中取出，并将环形内表面加工成坯件，以便提供穿过其中的通道。 在优选实施例中，环形空腔的横截面是圆形的并且具有圆弧形轴线，并且内表面被加工成与坯料的外表面同轴的坯料。