Title:
ROLLING APPARATUS AND ROLLING CONTROL METHOD OF SEAMLESS TUBE
Document Type and Number:
Japanese Patent JP2010149190
Kind Code:
A
Abstract:
To provide a rolling apparatus of a seamless tube capable of manufacturing a tube of less thickness deviation on the outlet side of a reduction mill or the like for adjusting the outside diameter of the tube without using any inside tool.
The rolling apparatus of the seamless tube includes a rolling mill 11 having a plurality of hole type roll stands to adjust the outside diameter of the tube without using any inside tool, and a rolling control device 16 for individually adjusting the rolling-reduction position of each roll of an intermediate stand with the degree of processing larger than that of a final stand.
COPYRIGHT: (C)2010,JPO&INPIT
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Inventors:
YAMANE AKIHITO
YAMADA MASAYUKI
EKOSHI TORU
YAMADA MASAYUKI
EKOSHI TORU
Application Number:
JP2010024079A
Publication Date:
July 08, 2010
Filing Date:
February 05, 2010
Export Citation:
Assignee:
SUMITOMO METAL IND
International Classes:
B21B17/14; B21B23/00; B21B37/00
Domestic Patent References:
| JP2002035818A | 2002-02-05 |
Attorney, Agent or Firm:
Shoichi Hirose