CERAMIC CORE AND METHOD FOR PRODUCING SAME
    7.
    发明申请
    CERAMIC CORE AND METHOD FOR PRODUCING SAME 有权
    陶瓷芯及其生产方法

    公开(公告)号:US20150321247A1

    公开(公告)日:2015-11-12

    申请号:US14236671

    申请日:2012-02-28

    申请人: Hideko FUKUSHIMA

    发明人: Hideko FUKUSHIMA

    摘要: A ceramic core is obtained by firing a mixture that contains 0.1-15.0% by mass of alumina and 0.005-0.1% by mass of potassium and/or sodium with the balance made up of silica and unavoidable impurities. Not less than 90% by mass of amorphous silica is contained in 100% by mass of the silica. A method for producing a ceramic core, wherein: a blended material is obtained by blending 25-45% by volume of a binder into 55-75% by volume of a mixture that is obtained by mixing alumina, potassium and/or sodium, and silica so as to have the above-mentioned composition; the blended material is injected into a die so as to obtain a molded body; and the molded body is degreased at 500-600° C. for 1-10 hours, and then fired at 1,200-1,400° C. for 1-10 hours.

    摘要翻译: 通过烧结含有0.1-15.0质量%的氧化铝和0.005-0.1质量%的钾和/或钠的混合物,其余余量由二氧化硅和不可避免的杂质组成,得到陶瓷芯。 在100质量%的二氧化硅中含有不小于90质量%的无定形二氧化硅。 一种陶瓷芯的制造方法,其中:通过将25-45体积%的粘合剂与55-75体积%的混合氧化铝,钾和/或钠混合得到的混合物和 二氧化硅,以具有上述组成; 将混合材料注入模具中以获得成型体; 将成型体在500-600℃下脱脂1-10小时,然后在1200-1400℃下烧结1-10小时。