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    • 1. 发明专利
    • Production of nozzle for casting molten steel
    • 生产用于铸钢的喷嘴
    • JPS59113962A
    • 1984-06-30
    • JP22461182
    • 1982-12-21
    • Harima Refract Co LtdKanai Jiyuuyou Kogyo KkOkada Shokai:Kk
    • KAWATO HIDEKAZUNISHIKAWA MASAMIOKADA TATSUOSHIOZU TOSHIYA
    • B28B1/48B22D11/10B22D41/52B22D41/58
    • B22D41/52B22D41/58
    • PURPOSE:To produce a nozzle for casting a molten steel having a circular hollow part for blowing gas by embedding concentrically with a core a cylindrical expendable material formed by winding spirally the same in a refractory material in a molding flask and subjecting the material to rubber pressing then to calcination. CONSTITUTION:An expendable belt-like sheet 7 is spirally wound around a circular cylindrical core and the superposed part is fixed by means of an adhesive agent; the thickness is adjusted by the degree of the superposition, whereby a cylindrical expandable material 5 is formed. A refractory material is charged into a molding flask made of rubber having a core and at the same time, the material 5 is inserted concentrically with the core therein and is embedded in the refractory material. The rubber mold is put in a liquid pressure vessel and is molded by rubber pressing. The molding is calcined at a high temp. after drying and a nozzle for casting molten metal having a circular hollow part 3 for blowing gas communicating with a gas introducing pipe 4 in a nozzle body 1 having a nozzle hole 2 is obtd. A non-woven fabric consisting of org. fibers such as ''Vinylon'' fiber or the like is adequately usable as the above-mentioned material 5.
    • 目的:制造用于铸造具有圆形中空部分的钢水的喷嘴,用于通过与芯体同心地嵌入圆柱形消耗材料来铸造气体,所述圆柱形消耗材料通过将其螺旋地缠绕在模型烧瓶中的耐火材料中并使材料进行橡胶压制 然后进行煅烧。 构成:将消耗性带状片7螺旋地缠绕在圆筒状的芯上,用叠层固定叠置部分; 通过叠合的程度来调节厚度,由此形成圆柱形可膨胀材料5。 将耐火材料装入由具有芯的橡胶制成的模制烧瓶中,同时将材料5与其中的芯同心地插入并嵌入耐火材料中。 将橡胶模具放入液体压力容器中并通过橡胶压制成型。 模塑件在高温下煅烧。 在具有喷嘴孔2的喷嘴体1中,具有用于吹入与气体导入管4连通的气体的圆形中空部3的熔融金属喷嘴。 由组织组成的无纺布。 作为上述材料5,可以充分利用“维尼纶”纤维等纤维。
    • 2. 发明专利
    • Cylindrical molding of nonwoven fabric for producing casting nozzle
    • 用于生产铸造喷嘴的非织造布的圆柱形模具
    • JPS59118261A
    • 1984-07-07
    • JP23208582
    • 1982-12-24
    • Harima Refract Co LtdKanai Jiyuuyou Kogyo KkOkada Shokai:Kk
    • SHIOZU TOSHIYAOKADA TATSUOKAWATO HIDEKAZUNISHIKAWA MASAMI
    • B22D41/52B22D41/58
    • B22D41/58
    • PURPOSE:To cast a nozzle having a correctly shaped hollow part in a high yield in the stage of casting a nozzle for casting having a hollow part for storing qushing gas by using a material having a high rate of gasification at the temp. in the stage of casting the nozzle in forming a cylindrical nozzle for the purpose of forming said hollow part. CONSTITUTION:A nozzle 1 for tapping a molten steel to be provided to a ladle, tundish, etc. ejects an inert gas in order to prevent alumina, etc. from depositing in a nozzle hole 2 during tapping and decreasing the hole diameter. A cylindrical modling for forming a hollow part 3 as a storage part for said inert gas is formed of a nonwoven fabric consisting essentially of ''Vinylon'' fibers and contg. a small amt. of water-soluble ''Vinylon'' fibers in order to form said hollow part 3 in the stage of casting the nozzle. The cylindrical molding evaporates and gasifies easily at the casting temp. in the stage of casting without strain and deformation and the nozzle having no deformation in the shape of the hollow part for storing the inert gas is obtd. in a high yield.
    • 目的:在铸造用铸造用喷嘴的阶段,以具有中空部的铸造阶段高成品地铸造具有正确形状的中空部的喷嘴,该中空部通过使用在该温度下具有高气化率的材料来储存冲刷气体。 在为了形成所述中空部分而形成圆柱形喷嘴的喷嘴阶段中。 构成:为了防止氧化铝等在出料孔中沉积在喷嘴孔2中,并且减小孔直径,用于抽出要提供给钢包,中间包等的钢水的喷嘴1喷出惰性气体。 用于形成作为所述惰性气体的储存部分的中空部分3的圆柱形模塑由基本上由“乙烯基”纤维组成的无纺织物形成, 一个小amt。 的水溶性“乙烯基”纤维,以便在浇铸喷嘴的阶段中形成所述中空部分3。 圆柱形模具在铸造温度下容易蒸发并气化。 在没有变形和变形的铸造阶段中,没有形成用于储存惰性气体的中空部分的形状变形的喷嘴。 以高收益。