发明名称 Process for the manufacture of gate valves for closure devices having a pouring nozzle and similar objects
摘要 In order to manufacture a casting nozzle plate assembly, e.g., a sliding closure of a slide plate and collector nozzle, without having to further machine the working surface of one assembly a mold is arranged on a trued slab. A refractory concrete is poured into the mold while the mold is vibrated. The concrete is allowed to harden before being separated from trued slab. The resulting assembly has a smooth work (e.g., sliding) surface for contact with another element.
申请公布号 US4248815(A) 申请公布日期 1981.02.03
申请号 US19790009807 申请日期 1979.02.06
申请人 KAISER ELECTRO REFRACTAIRE FRANCE 发明人 BLACKBURN, JAMES B.;RANDON, JEAN L.
分类号 B28B1/14;B22D37/00;B22D41/30;B28B1/08;(IPC1-7):B28B1/08;B28B3/08 主分类号 B28B1/14
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