发明名称 IMPIANTO PER LIMITARE L'OSSIDAZIONE SUPERFICIALE DI RASCHIATURE E SCORIE METALLICHE INCANDESCENTI
摘要 <p>A device limits the oxidation of the surface of hot metallic dross by preventing access of oxygen to the dross. The device includes a metal bell which is open at the bottom and can be moved vertically, a concrete base standing in a tank containing water and a shallow container for holding the dross. The bell includes a number of metallic supports projecting from its lower edge to support the bell as it rests in the water filled tank. This arrangement provides an air-tight seal for the space inside the bell and allows for compensation of any pressure change inside the bell as the hot dross consumes the limited amount of oxygen in the air</p>
申请公布号 IT1067044(B) 申请公布日期 1985.03.12
申请号 IT19760029584 申请日期 1976.11.19
申请人 ALLUMINIO SVIZZERO S.A. 发明人
分类号 C22B7/04;C22B21/00;(IPC1-7):C21C/ 主分类号 C22B7/04
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