한국금형공학회:학술대회논문집

Korean Society of Die & Mold Engineering (한국금형공학회)
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Determination of mass flow rate, jet temperature and heating time in mold surface heating technology using hot jet impingement

고온제트에 의한 금형표면 가열기법에서의 유량, 온도, 가열시간의 결정

  • Choi, Sung-Ju (Department of Nano-IT Engineering, Seoul National University of Technology) ;
  • Yoo, Young-Eun (Korea Institue of Machinery and Materials) ;
  • Kim, Sun-Kyoung (Dpartment of Die and Mold Design, Seoul National University of Technology)
  • 최성주 (서울산업대학교 나노 아이티 공학과) ;
  • 유영은 (한국기계연구원) ;
  • 김선경 (서울산업대학교 금형설계학과)
  • Published : 2008.06.24
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Abstract

Development of surface heating technology using hot jet impingement onto mold inner surface for improvement of pattern transcription. This study is focused on how to control the parameters related to hot jet impingement. The mass flow rate, the jet temperature and the duration of the impingement are major parameters. The nozzle design and other geometric configurations also affect the heat transfer to the surface. In terms of heat transfer analysis, the most important number is the heat transfer coefficient, which is influenced by the mass flow rate, nozzle design, distance between the nozzle tip and the surface. In summary, several parametric studies using the developed model are conducted to investigate the effects of mass flow rate, jet temperature and Heating Time in Surface heating technology using hot jet impingement onto mold.

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