| 发明名称 |
CONTROLLING METHOD FOR WALL THICKNESS OF SEAMLESS PIPE IN ROLLING MILL |
| 摘要 |
<p>PURPOSE:To control the wall thickness of the steel pipe blank to the desired thickness, by adjusting at least one of the work roll gap or the inclination angle of the work roll, when the seamless steel pipe is manufactured in the Mannesmann piercer.</p> |
| 申请公布号 |
JPS53149857(A) |
申请公布日期 |
1978.12.27 |
| 申请号 |
JP19770064750 |
申请日期 |
1977.06.03 |
| 申请人 |
HITACHI LTD |
发明人 |
TAKAHASHI OSAMU;WATANABE YASUO |
| 分类号 |
B21B19/04;B21B37/18;B21B37/78 |
主分类号 |
B21B19/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
