发明名称 |
Method of making a wrapped innoculation rod suitable for modifying the composition of molten metals |
摘要 |
{PG,1 A method of making a filled tubular article for controlled insertion into a molten metal includes extruding a treating material through an apparatus to form an elongated core element and wrapping the core element in a protective casing. Preferably, the casing of the article includes a helically wrapped ribbon-like strip.
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申请公布号 |
US4163827(A) |
申请公布日期 |
1979.08.07 |
申请号 |
US19780871722 |
申请日期 |
1978.01.23 |
申请人 |
CATERPILLAR TRACTOR |
发明人 |
NIEMAN, JOHN R;SANDERS, S DAVID |
分类号 |
B22D1/00;B65H81/08;C21C7/00;(IPC1-7):B31C13/00;B65H81/06;C22C33/00 |
主分类号 |
B22D1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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