TOP > 外国特許検索 > COMPOSITE MOLDED BODY MOLDING SYSTEM AND PRODUCTION METHOD

COMPOSITE MOLDED BODY MOLDING SYSTEM AND PRODUCTION METHOD 新技術説明会

Foreign code F210010299
File No. (P18-070)
Posted date 2021年1月28日
Country 世界知的所有権機関(WIPO)
International application number 2020JP018301
International publication number WO 2020226122
Date of international filing 令和2年4月30日(2020.4.30)
Date of international publication 令和2年11月12日(2020.11.12)
Priority data
  • 特願2019-087775 (2019.5.7) JP
Title COMPOSITE MOLDED BODY MOLDING SYSTEM AND PRODUCTION METHOD 新技術説明会
Abstract [Problem] The present invention aims to provide a molding system and production method for a composite molded body having excellent adhesion to carbon fibers and thermoplastic resin and having high molding freedom.
[Solution] The present invention is characterized by comprising: a means for braid molding a cylindrical material comprising a composite material of carbon fiber and thermoplastic resin; and a means for warm pressure molding the braid-molded cylindrical material, from the inside.
Outline of related art and contending technology BACKGROUND ART
Compounding of carbon fibers with resins has been studied due to their excellent specific strength. For example, Non-Patent Document 1 discloses a technique of braiding a carbon fiber impregnated with an epoxy resin and thermally cured. The reason why the thermosetting resin is impregnated into the carbon fibers in the present technology is to facilitate impregnation into the carbon fibers because the raw material prior to being heat-cured has low viscosity and is easy to form a liquid form.
However, not only does combining with thermosetting resins take time to cure, but also subsequent molding is difficult. In contrast, thermoplastic resins can be melted by heating to a predetermined temperature, but there is a technical problem in that the viscosity thereof is high, it is difficult to sufficiently impregnate carbon fibers, and the adhesion thereof is poor. In addition, it is also conceivable to impregnate the carbon fiber with a thermoplastic resin during braid molding and then perform drawing processing, but it is difficult to apply sufficient pressure in drawing processing, and the adhesion between the carbon fiber and the resin material becomes a problem.
Patent Document 1 discloses a fiber-reinforced resin tubular body, but the tubular body disclosed in this publication is formed by spirally winding a tape obtained by commingling continuous carbon fibers and thermoplastic resin fibers such that the tape partially overlaps the tape. However, there is a high risk of insufficient adhesion between the overlapped portions of the tapes, and there is a limitation on the shape that can be formed by a method in which the tapes are spirally wound.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • KANAZAWA UNIVERSITY
  • Inventor
  • YONEYAMA Takeshi
  • KINARI Toshiyasu
  • TATSUNO Daichi
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

PAGE TOP

close
close
close
close
close
close