The study of a CVT belt using the composite material of carbon fiber-reinforced thermoplastic resin

T. Minagawa, T. Tanaka, A. Yoshihiko, T. Ichiki, A. Inoue

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study is to develop automotive frictional parts, especially continuously variable transmission (CVT) blocks by using a composite material made of thermoplastics resin and fiber. CVT blocks are used at about 100°C under high pressure and friction condition. So, we have used nylon 9T, PA9T. PA9T has high a melting point that is higher than maximum temperature of the state of slip. To apply composite materials to CVT blocks, the material properties such as high strength, modulus of elasticity and fatigue strength are important. Therefore, a purpose of this study is improvements of mechanical properties by adding fillers to PA9T with various compounding and molding condition. PA9T and CF were mixed by using twin screw extruder. After compounding, dumbbell specimens were made by using injection molding machine. Bending, fatigue and abrasion tests were conducted. Moreover, we evaluated the transmission capacity of CVT belt made of PA9T composites and conducted slip test. According to results of tests, PA9T with CF38.8 vol% achieved desired values of CVT. The CVT belt has 40 Nm of torque under 2.0 kN of axle load.

Original languageEnglish
Title of host publication2014 International Conference on High Performance and Optimum Design of Structures and Materials, HPSM 2014 which incorporated the Seminar on Optimum Design in Engineering, OPTI 2014
PublisherWITPress
Pages177-188
Number of pages12
ISBN (Print)9781845647742
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventInternational Conference on High Performance and Optimum Design of Structures and Materials, HPSM/OPTI 2014 - Ostend, Belgium
Duration: 2014 Jun 92014 Jun 11

Publication series

NameWIT Transactions on the Built Environment
Volume137
ISSN (Print)1743-3509

Conference

ConferenceInternational Conference on High Performance and Optimum Design of Structures and Materials, HPSM/OPTI 2014
CountryBelgium
CityOstend
Period14/6/914/6/11

Keywords

  • CVT
  • PA9T
  • Transmission capacity evaluating test

ASJC Scopus subject areas

  • Architecture
  • Civil and Structural Engineering
  • Building and Construction
  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Arts and Humanities (miscellaneous)
  • Transportation
  • Safety Research
  • Computer Science Applications

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