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Patent Searching and Data


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)
Application Number:
PCT/JP2006/316118
Publication Date:
February 22, 2007
Filing Date:
August 10, 2006
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
KUBO HIROSHI (JP)
KOJIMA KATSUMI (JP)
NISHIHARA YUKA (JP)
YASUE YOSHIHIKO (JP)
IWASA HIROKI (JP)
International Classes:
B21D51/26; B65D8/16
Foreign References:
JPH08309465A1996-11-26
JP2004148324A2004-05-27
JP2001246695A2001-09-11
JPH07106394A1995-04-21
JP2526725B21996-08-21
JP2004148324A2004-05-27
JPS5935344A1984-02-27
JPS6122626A1986-01-31
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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