Fire-resistant gypsum panel
    2.
    发明申请
    Fire-resistant gypsum panel 有权
    耐火石膏板

    公开(公告)号:US20080087366A1

    公开(公告)日:2008-04-17

    申请号:US11546736

    申请日:2006-10-12

    IPC分类号: B32B37/00

    摘要: A method of continuously forming a multilayer panel includes making a gypsum slurry, then dividing the gypsum slurry into at least a primary gypsum slurry and a secondary gypsum slurry. An additive slurry having water and an intumescent material is created, then added to the secondary gypsum slurry to make an expandable layer slurry that is spread over at least a portion of a facing material. The primary gypsum slurry is distributed over the secondary gypsum slurry over the facing material and the expanding layer slurry to form a core. Optionally, another layer, an edge coating, is applied to the expanding layer for additional fire protection. The edge coating includes a second intumescent material. During a fire, the expanding layer expands to increase the thickness of the fire exposed gypsum panel and the edge coating expands to seal the gap between adjoining gypsum panels.

    摘要翻译: 连续形成多层板的方法包括制备石膏浆料,然后将石膏浆料分成至少一种初级石膏浆料和二级石膏浆料。 产生具有水和膨胀材料的添加剂浆料,然后加入到二次石膏浆料中以制成分散在至少一部分面向材料上的可膨胀层浆料。 主要石膏浆料分布在面向材料和膨胀层浆料上的次级石膏浆料上以形成核心。 可选地,将另一层(边缘涂层)施加到扩展层以用于额外的防火。 边缘涂层包括第二膨胀材料。 在火灾期间,膨胀层膨胀以增加防火露石膏板的厚度,并且边缘涂层膨胀以密封相邻的石膏板之间的间隙。