发明名称 |
Method of fabricating a flow device |
摘要 |
This invention is a novel method for fabricating leak-tight tubular articles which have an interior flow channel whose contour must conform very closely with design specifications but which are composed of metal which tends to warp if welded.
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申请公布号 |
US4112568(A) |
申请公布日期 |
1978.09.12 |
申请号 |
US19770802346 |
申请日期 |
1977.06.01 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE UNITED STATES DEPARTMENT OF ENERGY |
发明人 |
HALE, ROBERT L. |
分类号 |
B23P15/22;(IPC1-7):B23P15/00 |
主分类号 |
B23P15/22 |
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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