Fused cast refractory products containing chromic oxide
    1.
    发明授权
    Fused cast refractory products containing chromic oxide 失效
    熔化铸造产品含有氧化铬

    公开(公告)号:US3837870A

    公开(公告)日:1974-09-24

    申请号:US35959673

    申请日:1973-05-11

    发明人: RECASENS J GARDIOL M

    摘要: The invention relates to the refractory art and, more specifically, to fused cast refractory compose of crystalline phases based on chromic oxide, zirconia and, possibly, alumina, and of a vitreous phase comprising silica, a substantially saturating amount of alumina and at least one oxide of the group consisting of Na2O, K2O, Li2O, CaO, BaO, BeO and MgO, the composition of the product, expressed by weight in terms of the oxides, being as follows: 1-74% Cr2O3, 15-40% ZrO2, 3-76% Al2O3, 7.5-20% SiO2 and a minor amount of at least one oxide of the group consisting of Na2O, K2O, Li2O, CaO, BaO, BeO and MgO. The products of the invention are useful for the construction of glass furnaces.

    摘要翻译: 本发明涉及耐火材料技术,更具体地说,涉及基于氧化铬,氧化锆和可能的氧化铝的结晶相的熔融浇铸耐火组合物,以及包含二氧化硅的玻璃相,基本上饱和量的氧化铝和至少一种 由Na2O,K2O,Li2O,CaO,BaO,BeO和MgO组成的组中的氧化物,以氧化物计的重量表示的产物组成如下:1-74%Cr2O3,15-40%ZrO2 ,3-76%Al 2 O 3,7.5〜20%SiO 2和少量至少一种由Na 2 O,K 2 O,Li 2 O,CaO,BaO,BeO和MgO组成的组的氧化物。

    Apparatus for casting workpieces having radially extending wings
    2.
    发明授权
    Apparatus for casting workpieces having radially extending wings 失效
    用于铸造具有径向延伸线的工件的装置

    公开(公告)号:US3807683A

    公开(公告)日:1974-04-30

    申请号:US28459772

    申请日:1972-08-29

    发明人: RECASENS J

    IPC分类号: B22D15/04 B22D27/04

    CPC分类号: B22D15/04

    摘要: Apparatus for the casting of workpieces, such as pump rotors or stackable elements, made of a refractory material and having wings extending from a central boss. This apparatus comprises internally cooled metallic wedges radially arranged around a central void and comprised between a bottom plate and a centrally perforated cover, which are mobile between two extreme positions corresponding to the casting position and to the position of extraction of the cast workpiece. The wedges can be radially moved or swung around horizontal axles.

    摘要翻译: 用于铸造诸如泵转子或可堆叠元件的工件的设备,由耐火材料制成并且具有从中心凸台延伸的翼。 该装置包括径向布置在中心空隙周围的内部冷却的金属楔,并且包括在底板和中心穿孔的盖之间,该盖可在对应于铸造位置的两个极限位置和铸造工件的提取位置之间移动。 楔形物可以在水平轴上径向移动或摆动。