发明名称 |
Process of producing thick-walled composite metal tubing |
摘要 |
A thick-walled composite metal tubing comprising an inner tubular member made of a steel pipe and an outer tubular member made of a carbon steel pipe which are press-fitted together with integration bonding thereof involving disappearance of the boundary interface at least in part of the inner and outer tubular members, and process for producing the same.
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申请公布号 |
US4784311(A) |
申请公布日期 |
1988.11.15 |
申请号 |
US19860884697 |
申请日期 |
1986.07.11 |
申请人 |
USUI KOKUSAI SANGYO KABUSHIKI KAISHA |
发明人 |
SUGAO, KEIZO |
分类号 |
B23K20/00;B21C37/06;B21C37/15;F02M55/02;F16L9/04;F16L58/18;(IPC1-7):B21D39/04;B23K1/00 |
主分类号 |
B23K20/00 |
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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