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    • 9. 发明申请
    • METHOD FOR PRODUCING A COATED QUARTZ GLASS COMPONENT
    • 用于生产涂布组件由石英玻璃
    • WO2011042262A2
    • 2011-04-14
    • PCT/EP2010062794
    • 2010-09-01
    • HERAEUS QUARZGLASSHINETSU QUARTZ PRODWERDECKER WALTRAUDSCHEICH GERRITSCHENK CHRISTIAN
    • WERDECKER WALTRAUDSCHEICH GERRITSCHENK CHRISTIAN
    • C03C17/02
    • C03C17/02C03C2218/11
    • In a known method, a SiO2 slip layer is applied to a basic quartz glass body by means of spraying on an SiO2 slip, the slip layer is dried and sintered to form an SiO2-containing functional layer. In order to permit the reproducible production of a functional quartz glass layer, even in the case of surfaces that are curved or inclined with respect to the vertical, having high layer thicknesses which satisfy high requirements on the layer homogeneity, the invention proposes that the slip contain the following components in a dispersion liquid: splintery, amorphousSiO2 granules having a grain size distribution having a D50 value in the range of 3 µm to 30 µm and having a proportion by weight of at least 10% by weight, based on the total solids content; spherical, amorphous SiO2 particles having a particle size distribution having a D50 value in the range of 1 µm to 50 µm and having a proportion by weight of at least 30% by weight, based on the total solids content; SiO2 nano particles having particle sizes of less than 100 nm and having a proportion by weight between 0.2% and 10% by weight, based on the total solids content; and a non-ionic, alkali-free surfactant having a proportion in the range of 0.005 to 0.5%, based on the volume of the dispersion liquid.
    • 在已知的方法中的SiO2滑动层是通过在石英玻璃制成的基体喷涂在SiO 2浆料,干燥该浆料并烧结到含SiO 2的功能层施加。 为了由石英玻璃构成的功能层的可重复制备,以允许即使在弯曲或倾斜到与满足上的涂层的均匀性高的要求大的层厚度的垂直表面,本发明提出的是,滑移包含以下组分的分散液:碎裂无定形的SiO 2-砂砾 用在3微米与30微米与相关的总固体含量的重量的时间之间的范围内的D50值的晶粒尺寸分布,至少10重量%,具有在1之间的范围内的D50值的颗粒尺寸分布的球形,无定形SiO 2颗粒 微米和50微米,按重量计有关的至少30的全部固体成分的重量比一个时间 - 。%,二氧化硅纳米颗粒的颗粒尺寸小于100nm与涉及的0.2重量之间.-%和10重量%的总固体含量的重量比例一个时间 .-%,非离子型,无碱 表面活性剂与涉及在0.005〜0.5%的范围内的分散液馏分的体积的时间。