Mould for metal casting
    1.
    发明授权
    Mould for metal casting 有权
    金属铸造模具

    公开(公告)号:US06863113B2

    公开(公告)日:2005-03-08

    申请号:US10399690

    申请日:2001-10-31

    摘要: A process for forming a mould or a core for casting molten metal by machining (e.g. cutting or drilling) to the desired shape a bonded particulate refractory material wherein the shear strength of the refractory particles is less than the shear strength of the bonds between the particles. The preferred particulate is aluminosilicate microspherers (e.g. “flyash floaters”) and the binder is preferably based on silica (e.g. fumed silica/sodium hydroxide). The bonded particulate material is easily machined to form accurately dimensioned moulds or parts thereof.

    摘要翻译: 一种用于通过机械加工(例如切割或钻孔)形成所需形状的粘合颗粒耐火材料来形成模具或芯的方法,其中耐火材料颗粒的剪切强度小于颗粒之间的键的剪切强度 。 优选的颗粒是铝硅酸盐微球体(例如“飞灰浮选机”),并且粘合剂优选基于二氧化硅(例如热解二氧化硅/氢氧化钠)。 粘合的颗粒材料容易加工以形成精确尺寸的模具或其部件。