Title:
POWDER LUBRICANT COMPOSITION AND METHOD FOR MANUFACTURING SEAMLESS STEEL TUBE
Document Type and Number:
WIPO Patent Application WO/2014/027655
Kind Code:
A1
Abstract:
This powder lubricant composition includes 65-95 parts by mass of sodium borate and 5-35 parts by mass of cryolite. This method for manufacturing a seamless steel tube has a powder lubricant composition attachment step for attaching the powder lubricant composition to an inner surface of a tube of processed material piercing-rolled into a tube shape, and a draw-rolling step for draw-rolling the processed material after the powder lubricant composition attachment step.
Inventors:
IIDA SUMIO (JP)
IMAMURA MASAMI (JP)
FUKUSHIMA TAKAYUKI (JP)
IMAMURA MASAMI (JP)
FUKUSHIMA TAKAYUKI (JP)
Application Number:
PCT/JP2013/071862
Publication Date:
February 20, 2014
Filing Date:
August 13, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C10M169/04; B21B17/02; B21B45/02; C10M103/00; C10M125/18; C10N20/00; C10N40/20; C10N50/08
Foreign References:
| JPS6137989A | 1986-02-22 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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