High-silica glass foam method
    10.
    发明授权
    High-silica glass foam method 失效
    高硅玻璃泡沫法

    公开(公告)号:US3592619A

    公开(公告)日:1971-07-13

    申请号:US3592619D

    申请日:1969-04-14

    IPC分类号: C03B19/08 C03C11/00 C03B33/00

    CPC分类号: C03B19/08 C03C11/005

    摘要: A METHOD OF MAKING A HIGH-SILICA GLASS FOAM BY FORMING A BODY OF BOROSILICATE GLASS CONTAINING NOT MORE THAN ABOUT 70% BY WEIGHT OF SILICA, THE GLASS BEING CAPABLE OF SEPARATING INTO A SILICA-RICH PHASE AND A SILICA-POOR PHASED, TREATING THE GLASS WITH A MINERAL ACID TO REMOVE THE SILICA-POOR PHASE AND LEAVE A HIGH SILICA BODY HAVING A POROUS STRUCTURE, IMPREGNATING THE POROUS BODY WITH A BORIC OXIDE SOLUTION, CRUSHING AND SCREENING THE POROUS BODY, DRYING THE PARTICULATED MATERIAL TO REMOVE EXCESS WATER, AND SINTERING AND FOAMING THE PARTICULATED MATERIAL TO FORM A FUSED, A LOW EXPANSION, HIGH SILICAGLASS FOAM.