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    • 1. 发明授权
    • Machinable hydrothermally-crystallized glass bodies
    • 可加工的水热结晶玻璃体
    • US3915720A
    • 1975-10-28
    • US51224274
    • 1974-10-07
    • CORNING GLASS WORKS
    • TARCZA WALTER H
    • C03C10/00C03C3/22
    • C03C10/0045
    • The instant invention is concerned with the production of glass bodies which, after being hydrothermally crystallized, exhibit a relatively high degree of machinability and good chemical durability. Such bodies are produced by hydrating glass particles having compositions within a very narrow interval of the Na2OAl2O3-MgO-SiO2 field. The hydration simultaneously results in the development of quartz crystals and causes the glass particles to sinter together into an integrated solid body which can be readily shaped and drilled by hand and machine tools. Upon firing to remove the water in the glass structure, a porous body is produced that will exhibit no more than 10% linear shrinkage and, most preferably, less than 5%.
    • 本发明涉及玻璃体的制造,其在水热结晶后表现出相对高的机械加工性和良好的化学耐久性。 通过使具有在Na 2 O-Al 2 O 3 -MgO-SiO 2场的非常窄的间隔内的组成的玻璃颗粒水合而制造这些体。 水合同时导致石英晶体的发展,并使玻璃颗粒一起烧结成一体化的固体,其可以通过手工和机床容易地成形和钻孔。 在烧制以除去玻璃结构中的水时,产生多孔体,该多孔体的线收缩率不超过10%,最优选小于5%。