Process for forming hydrated calcium silicate products
    1.
    发明授权
    Process for forming hydrated calcium silicate products 失效
    形成水合硅酸钙产品的方法

    公开(公告)号:US4629508A

    公开(公告)日:1986-12-16

    申请号:US840341

    申请日:1986-03-17

    CPC分类号: C04B28/18 Y10S106/02

    摘要: A process is described for the formation of shaped hydrated calcium silicate products. The process comprises reacting an aqueous slurry containing a source of calcium hydroxide, perlite as a source of silica, and a soluble calcium salt in the presence of high pressure saturated steam, then adding cooling water followed by subsequent venting of the reactor vessel to ambient pressure. Reinforcing fibers may then be added after which the desired shapes are molded and dried.

    摘要翻译: 描述了形成水合硅酸钙产品的方法。 该方法包括在高压饱和蒸汽存在下,使含有氢氧化钙源的珍珠岩,珍珠岩作为二氧化硅源和可溶性钙盐的含水浆料反应,然后加入冷却水,随后将反应器容器排气至环境压力 。 然后可以加入增强纤维,之后将所需形状模制和干燥。

    Pipe insulation
    3.
    发明授权
    Pipe insulation 失效
    管绝缘

    公开(公告)号:US4823845A

    公开(公告)日:1989-04-25

    申请号:US93288

    申请日:1987-09-04

    摘要: Inorganic fibrous pipe insulation in the shape of a tube comprising outer and inner flexible sheets on the outer and inner cylindrical surfaces of the tube. A majority of the fibers are at right angles to the flexible sheets and therefore extend radially of the pipe to offer good compression resistance to impact. By using substantially non-stretchable material for the inner sheet a fibrous layer whose fibers are generally perpendicular to the layer can be permanently formed into generally cylindrical shape. For insulation designed to cover very small diameter pipes the thickness of the fibrous layer is varied to provide fewer adjacent the inner flexible sheet than are adjacent the outer flexible sheet.

    摘要翻译: 管的形状的无机纤维管绝缘体,其包括在管的外圆柱形表面和内圆柱表面上的外柔性片和内柔性片。 大多数纤维与柔性片成直角,因此沿着管的径向延伸以提供良好的耐冲击性。 通过使用基本上不可拉伸的材料作为内部片材,其纤维通常垂直于该层的纤维层可以永久地形成为大致圆柱形的形状。 对于设计成覆盖非常小直径的管道的绝缘体,纤维层的厚度是变化的,以提供比邻近外部柔性片材更少的内部柔性片材。