Title:
PREFORM PRODUCTION METHOD AND PREFORM PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/188417
Kind Code:
A1
Abstract:
Provided is a preform production method by which it is possible to produce a high-grade preform that, by preventing wrinkling and cracking in a reinforcing-fiber substrate, has no disturbances in the reinforcing-fibers. Prior to main molding for obtaining a fiber-reinforced resin molded article in the desired shape, this preform production method shapes a reinforcing-fiber substrate A, which contains reinforcing fibers and a resin component comprising a matrix resin or a binder resin, into a prescribed shape to obtain a preform. The production method is characterized in that when shaping the reinforcing-fiber substrate A, a temperature difference is produced within the pressure welding range of the reinforcing-fiber substrate A.
Inventors:
MIYAUCHI AKIRA (JP)
SAMEJIMA TADAO (JP)
WATANABE YASUSHI (JP)
SAMEJIMA TADAO (JP)
WATANABE YASUSHI (JP)
Application Number:
PCT/JP2019/010851
Publication Date:
October 03, 2019
Filing Date:
March 15, 2019
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
B29B15/08; B29C43/34; B29C70/16; B29C70/38; B29K105/08
Domestic Patent References:
| WO2015146668A1 | 2015-10-01 | |||
| WO2013118534A1 | 2013-08-15 | |||
| WO2018021226A1 | 2018-02-01 |
Foreign References:
| JP2009148931A | 2009-07-09 | |||
| JP2007126793A | 2007-05-24 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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