난(難)알루미나 부착 연속주조용 침지 노즐의 제조 방법
    8.
    发明公开
    난(難)알루미나 부착 연속주조용 침지 노즐의 제조 방법 失效
    在连续铸造中用于制造不能沉积氧化铝的浸没喷嘴的方法

    公开(公告)号:KR1020050058330A

    公开(公告)日:2005-06-16

    申请号:KR1020057002660

    申请日:2003-08-19

    摘要: A method for manufacturing an immersion nozzle having a zirconia-graphite based refractory provided in the powder line portion thereof, wherein, further, at least in the portion inside the hole of the nozzle, the body of the nozzle is integrally formed with a compound comprising 10 mass % or more of a clinker which has the surface of particles containing CaO as a mineral phase and having been subjected to a hydration preventing treatment such as the formation of CaCO3 by a heat treatment in a CO2atmosphere. The method allows the inhibition of the reaction with the moisture released from a resin being added as a binder and thus the suppression of expansion of the volume of the body, which results in the prevention of occurrence of clacks in the resultant formed product during firing.

    摘要翻译: 一种在其粉末线部分中设置有具有氧化锆 - 石墨基耐火材料的浸渍式喷嘴的制造方法,其特征在于,至少在喷嘴的孔内的部分内,将喷嘴的主体与包含 10质量%以上的熟料,其具有含有CaO作为矿物相的颗粒的表面,并且已经进行了水合防止处理,例如通过在CO 2气氛中的热处理形成CaCO 3。 该方法允许抑制与作为粘合剂添加的树脂释放的水分的反应,从而抑制身体的体积膨胀,这导致防止在焙烧期间所得成形产品中的褶皱的发生。