Title:
ストリップ状フィルムの製造方法及び同方法を実施するためのプラント
Document Type and Number:
Japanese Patent JP4539933
Kind Code:
B2
Abstract:
A method for the shaping of strip-like films (2) involves the following steps:a) A film strip (2) is continuously forwarded from a film supply to shaping units.b) The film strip (2) is pleated in a first shaping unit (11). In this, edges (21, 22) are produced which form an angle of inclination to the edges (36) of the film strip having a constant value.c) After a forwarding of the pleated strip (2') to at least one further shaping unit (12) the former is reshaped in one or more steps. In this the edges (21, 22) are eliminated through plastic deformation by means of a roller pair (120) in edge zones (30b) outside of a middle zone (30a) of the strip and are at the same time replaced by curved edges (31, 32). The angles of inclination of the curved edges continuously increase from the middle zone to the strip edges.
Inventors:
Martin bear
Application Number:
JP2000074452A
Publication Date:
September 08, 2010
Filing Date:
March 16, 2000
Export Citation:
Assignee:
Sulzer Chemtech AG
International Classes:
B29C53/22; B21D13/00; B29C53/24; B21D13/04; B21D31/04; B29C53/02; B29C53/04; B29C53/26; B29C53/28; B29C59/04; B31F1/26; B65H45/14; B29K101/12; B29K105/00; B29L16/00; B44B
Domestic Patent References:
| JP10319055A | ||||
| JP10319056A | ||||
| JP56130593A | ||||
| JP11514568A | ||||
| JP3049928A | ||||
| JP5506824A |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda