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126 条记录 (耗时 0.013 秒)

    Method and apparatus for producing one or more hollow sand cores suitable for casting moulds
    1.
    发明授权
    Method and apparatus for producing one or more hollow sand cores suitable for casting moulds 失效
    一种或多种用于铸造模具的中空砂芯的生产方法和装置

    公开(公告)号：US4390056A

    公开(公告)日：1983-06-28

    申请号：US173753

    申请日：1980-07-30

    申请人： Morgens W. Grove ,  Carl-Erik Eriksen

    发明人： Morgens W. Grove ,  Carl-Erik Eriksen

    IPC分类号： B22C9/10 ,  A61C13/00 ,  B22C13/08 ,  B22C15/20 ,  B22C15/24 ,  B22C17/00 ,  B22C13/12

    CPC分类号： A61C13/0003 ,  B22C15/20 ,  B22C15/24

    摘要： An apparatus and method for producing one or more hollow sand cores suitable for casting moulds using a bipartite core box defining a mould cavity into which sand and a catalyst or a curing agent are introduced. The method includes the steps of establishing a pressure gradient which decreases from the interior to the exterior of a non-heated core box of porous material; introducing sand and a catalyst or a curing agent into the mould cavity defined by the non-heated core box; and directing the introduced sand and catalyst or curing agent against the interior surface of the non-heated core box, which step of directing, at least in part, is obtained by the pressure gradient established between the interior and exterior of the non-heated core box. The apparatus provides structure for accomplishing the above described method.

    摘要翻译： 一种用于制造一种或多种适于铸造模具的空心砂芯的装置和方法，所述中空砂芯使用限定模具腔的二分核心箱，其中引入了砂和催化剂或固化剂。 该方法包括建立从多孔材料的未加热芯盒的内部到外部减小的压力梯度的步骤; 将砂和催化剂或固化剂引入由非加热芯盒限定的模腔中; 并且将引入的砂和催化剂或固化剂引导到非加热芯盒的内表面上，该步骤至少部分地通过在非加热芯体的内部和外部之间建立的压力梯度来获得 框。 该装置提供了用于实现上述方法的结构。

    Refractory lining mixture for hot metallurgical vessels
    2.
    发明授权
    Refractory lining mixture for hot metallurgical vessels 失效
    用于热冶金容器的耐火衬里混合物

    公开(公告)号：US3897256A

    公开(公告)日：1975-07-29

    申请号：US32089473

    申请日：1973-01-04

    申请人： CRAWFORD BROWN MURTON

    发明人： MURTON CRAWFORD B

    IPC分类号： B22C15/20 ,  B22D41/02 ,  C04B35/634 ,  C04B35/66 ,  F27D1/16 ,  C04B35/14

    CPC分类号： C04B35/63492 ,  B22C15/20 ,  B22D41/02 ,  C04B35/6316 ,  C04B35/63496 ,  C04B35/66 ,  C04B2111/00482 ,  C04B2111/0087 ,  C04B2111/72 ,  C04B2235/3418 ,  C04B2235/9676 ,  F27D1/1673

    摘要： A method for relining metallurgical ladles, soaking pits, and furnaces at temperatures of at least about 250*F by applying a mixture of refractory materials against a prior-existing lining without prior cooling thereof, the relining thickness being at least one-fourth inch. The dry refractory mixture consists essentially of, by weight, from about 1/2 % to about 4% of sodium silicate, from about 1/2 % to about 4% of an organic binder, from about 20% to 80% of clay, and from about 12% to about 72% quartzite. To facilitate its application, the dry refractory mixture may be mixed with about 4% to 6% water as it is applied.

    摘要翻译： 一种用于在至少约250°F的温度下，通过将耐火材料的混合物施加在先前存在的衬里上而不预先冷却的情况下，将冶金浇包，浸泡凹坑和炉子进行再熔炼的方法，所述再结合厚度为至少1/4英寸。 干耐火混合物基本上由重量计约1/2％至约4％的硅酸钠，约1％至2％至约4％的有机粘合剂，约20％至80％的粘土， 和约12％至约72％的石英岩。 为了便于其应用，干耐火混合物可以在施用时与约4％至6％的水混合。