发明名称 |
Method for obtaining hollow articles |
摘要 |
The disclosure teaches a method for the manufacture of hollow articles useful as heat exchangers including the steps of rolling together two sheets of metal with at least one metal tube sandwiched therebetween to form a bonded assembly. The metal tube is subsequently expanded by the introduction of pressure therein to form an internal passageway.
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申请公布号 |
US4080702(A) |
申请公布日期 |
1978.03.28 |
申请号 |
US19770778040 |
申请日期 |
1977.03.16 |
申请人 |
OLIN CORPORATION |
发明人 |
CHATFIELD, PHILLIP A.;GULLOTTI, DAMIAN V. |
分类号 |
B21D53/04;(IPC1-7):B21D26/02 |
主分类号 |
B21D53/04 |
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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