发明名称 |
METHOD AND APPARATUS FOR BENDING A ROLLING MILL LAYING PIPE |
摘要 |
<p>823 A method and apparatus for imparting a threedimensionally curved configuration to a straight elongated element wherein one end of the element is removably supported with its axis coincident with a reference axis. The element is partially pre-bent away from the reference axis into conformity with a two-dimensional first guide path. Thereafter, the pre-bent element is bent into conformity with a three-dimensional helical second guide path.</p> |
申请公布号 |
CA1228284(A) |
申请公布日期 |
1987.10.20 |
申请号 |
CA19840459761 |
申请日期 |
1984.07.26 |
申请人 |
MORGAN CONSTRUCTION COMPANY |
发明人 |
WOODROW, HAROLD E. |
分类号 |
B21D7/16;B21D7/024;B21D7/08;B21D11/06;(IPC1-7):B21D5/00 |
主分类号 |
B21D7/16 |
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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