Title:
RING MATERIAL ROLLING EQUIPMENT
Document Type and Number:
Japanese Patent JP3287045
Kind Code:
B2
Abstract:
PURPOSE: To reduce the thermal load of a rolling roll by effectively heating the ring material which is rolled between upper and lower rolling rolls.
CONSTITUTION: A guide roll 9 which is brought into contact with a ring material 3 to be rolled is arranged on the upstream side of upper and lower rolling rolls 1, 2. A conducting line 5 is provided between the guide roll 9 and the power source 4. A conducting line 6 is provided between the upper rolling roll 1 and the power source 4. A conducting circuit 11A is constituted where the current from the power source 4 runs through the conducting line 5, the guide roll 9, the ring material 3, the upper rolling roll 1, and the conducting line 6. The part of the ring material 3 which is located between the upper and lower rolling rolls 1, 2 and the guide roll 9 is conducted and heated by the conducting circuit 11A.
Inventors:
Masao Mikami
Application Number:
JP1591293A
Publication Date:
May 27, 2002
Filing Date:
January 05, 1993
Export Citation:
Assignee:
Ishikawajima Harima Heavy Industries Co., Ltd.
International Classes:
B21B19/14; B21B5/00; B21B45/00; B21H1/06; (IPC1-7): B21H1/06; B21B5/00; B21B19/14; B21B45/00
Domestic Patent References:
| JP2133131A | ||||
| JP5192776A | ||||
| JP50103458A | ||||
| JP569160A | ||||
| JP524105U |
Attorney, Agent or Firm:
Mitsuo Sakamoto