Title:
PROCESS FOR PRODUCING TWO PIECE CAN AND TWO PIECE LAMINATED CAN
Document Type and Number:
WIPO Patent Application WO/2007/020948
Kind Code:
A1
Abstract:
This invention provides a process for producing a two piece can. A circular plate of
a laminated steel plate having a thermoplastic resin covering layer is subjected to
multistage molding to form a final molded product having a final dimension of
height h, maximum radius r, and minimum radius d including the case where r and d
are the same. The molding is carried out in such a range that the relationship between
the height h, maximum radius r, and minimum radius d and radius R of the circular
plate before molding, which is equivalent to the weight of the final molded product,
satisfies the following formulae: 0.1 ≤ d/R ≤ 0.25 and 1.5 ≤
h/(R-r) ≤ 4. During the molding, heat treatment is carried out by heating
the molded product to a temperature at or above the melting point of a thermoplastic
resin and at or below the melting point +30ºC.
Inventors:
KUBO HIROSHI (JP)
KOJIMA KATSUMI (JP)
NISHIHARA YUKA (JP)
YASUE YOSHIHIKO (JP)
IWASA HIROKI (JP)
KOJIMA KATSUMI (JP)
NISHIHARA YUKA (JP)
YASUE YOSHIHIKO (JP)
IWASA HIROKI (JP)
Application Number:
PCT/JP2006/316118
Publication Date:
February 22, 2007
Filing Date:
August 10, 2006
Export Citation:
Assignee:
JFE STEEL CORP (JP)
KUBO HIROSHI (JP)
KOJIMA KATSUMI (JP)
NISHIHARA YUKA (JP)
YASUE YOSHIHIKO (JP)
IWASA HIROKI (JP)
KUBO HIROSHI (JP)
KOJIMA KATSUMI (JP)
NISHIHARA YUKA (JP)
YASUE YOSHIHIKO (JP)
IWASA HIROKI (JP)
International Classes:
B21D51/26; B65D8/16
Foreign References:
JPH08309465A | 1996-11-26 | |||
JP2004148324A | 2004-05-27 | |||
JP2001246695A | 2001-09-11 | |||
JPH07106394A | 1995-04-21 | |||
JP2526725B2 | 1996-08-21 | |||
JP2004148324A | 2004-05-27 | |||
JPS5935344A | 1984-02-27 | |||
JPS6122626A | 1986-01-31 |
Other References:
See also references of EP 1914026A4
Attorney, Agent or Firm:
OCHIAI, Kenichiro (Yanagiya bldg 7F. 1-10, Nihonbashi 2-chome, Chuo-k, Tokyo 27, JP)
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