Title:
METHOD FOR PRODUCING SQUARE CAN
Document Type and Number:
WIPO Patent Application WO/2018/061673
Kind Code:
A1
Abstract:
The present invention provides a method for producing a square can, said method making it possible to further reduce the radius of curvature of four corners of the bottom of the square can. Provided is a method for producing a bottomed square can, wherein the method is characterized by including: a step for performing a coining process on a portion of a metal sheet that corresponds to a side wall of a final molded article and at least part of a portion of the metal sheet that has undergone drawing and ironing; and a step for performing a drawing and ironing process on a blank that has undergone the coining process.
Inventors:
OGAWA YOUSUKE (JP)
UKAI KENTAROU (JP)
OOHORI KEI (JP)
OSAFUNE TATSUYA (JP)
NAKAGAWA TAKANORI (JP)
UKAI KENTAROU (JP)
OOHORI KEI (JP)
OSAFUNE TATSUYA (JP)
NAKAGAWA TAKANORI (JP)
Application Number:
PCT/JP2017/032107
Publication Date:
April 05, 2018
Filing Date:
September 06, 2017
Export Citation:
Assignee:
TOYO SEIKAN KAISHA LTD (JP)
International Classes:
B21D51/26; B21D22/02; B21D22/26
Foreign References:
JP2007260740A | 2007-10-11 | |||
JP2014221493A | 2014-11-27 | |||
JPH105888A | 1998-01-13 |
Attorney, Agent or Firm:
NAKAMURA, Go et al. (JP)
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