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Patent Searching and Data


Title:
METHOD FOR EXPANDING/ROLLING SEAMLESS TUBE
Document Type and Number:
Japanese Patent JPH07214115
Kind Code:
A
Abstract:

PURPOSE: To execute high expansion rolling of tube by avoiding that a material to be rolled is fin flowed and broken from the clearance between a rolling roll and a guide shoe by the generation of flaring, and continuation of rolling is impossible.

CONSTITUTION: At the time of executing high expansion rolling of a hollow tube stock using of an inclination type expansion rolling mill 10 having conical rolling rolls 81, 82 and disk roll type guide shoes 83, guide shoe holders 84 are provided on both sides of the respective disk roll type guide shoes 83 on the outlet side of the inclination type expansion rolling mill 10 and fixed guide shoes 85 are provided on the respective guide shoe holders 84.


Inventors:
Shimizu, Tetsuo
Yorifuji, Akira
Toyooka, Takaaki
Application Number:
JP1994000034266
Publication Date:
August 15, 1995
Filing Date:
February 08, 1994
Export Citation:
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Assignee:
KAWASAKI STEEL CORP
International Classes:
B21B19/08; B21B19/06; B21B23/00; (IPC1-7): B21B19/06; B21B19/08; B21B23/00