| 发明名称 |
PLUG FOR HOT PIPE MAKING |
| 摘要 |
A plug for hot pipe making includes a plurality of plug pieces which is attachable to and detachable from one another, and a connection member which connects the plug pieces by a magnetic force. One of the plug pieces connected to each other includes a column-shaped portion which extends in an axis direction of the plug for hot pipe making, and the other includes a joining hole which extends in the axis direction of the plug for hot pipe making and into which the column-shaped portion is inserted. The connection member is a permanent magnet which is attached to at least one of the column-shaped portion and the joining hole. |
| 申请公布号 |
US2015183010(A1) |
申请公布日期 |
2015.07.02 |
| 申请号 |
US201314415050 |
申请日期 |
2013.08.16 |
| 申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
Yamane Kouji;Shimoda Kazuhiro;Yamakawa Tomio;Inoue Yuji |
| 分类号 |
B21B25/00;B21B19/04 |
主分类号 |
B21B25/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A plug for hot pipe making which is used in hot pipe making of a seamless pipe, the plug comprising:
a plurality of plug pieces which is attachable to and detachable from one another; and a connection member which connects the plug pieces by a magnetic force, wherein one of the plug pieces connected to each other includes a column-shaped portion which extends in an axis direction of the plug for hot pipe making, and the other includes a joining hole which extends in the axis direction of the plug for hot pipe making and into which the column-shaped portion is inserted, and wherein the connection member is a permanent magnet which is attached to at least one of the column-shaped portion and the joining hole. |
| 地址 |
Chiyoda-ku, Tokyo JP |
