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Title:
LUBRICANT FOR HOT ROLLING AND METHOD FOR LUBRICATING INSIDE OF PIPE BY USING IT
Document Type and Number:
Japanese Patent JPH0570782
Kind Code:
A
Abstract:

PURPOSE: To prevent carburization, which tends to be a problem when graphite lubricant is used, and to prevent the dents on the inside of a pipe due to oxide scale.

CONSTITUTION: A mixture of a calcium compound and graphite is used as the lubricating component in a lubricant. The contents of the calcium compound and the graphite in the lubricant are respectively 50-90% and 10-50%. The obtained lubricant has lubricating performance comparable to that consisting of graphite alone and is free from carburization. By descaling the inside of a pipe with high-pressure water before rolling, the dents on the inside of the pipe due to oxide scale can be prevented.


Inventors:
NAKANISHI TETSUYA
FUJII SATORU
TSUBOUCHI KENJI
Application Number:
JP26297491A
Publication Date:
March 23, 1993
Filing Date:
September 12, 1991
Export Citation:
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Assignee:
SUMITOMO METAL IND
International Classes:
B21B19/00; B21B45/02; C10M103/00; C10N10/04; C10N30/14; C10N40/24; C10N50/08; (IPC1-7): B21B19/00; B21B45/02; C10M103/00; C10N10/04; C10N30/14; C10N40/24; C10N50/08
Attorney, Agent or Firm:
Raw form Motoshige (1 person outside)



 
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