Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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Comparison of Linear Channel and Baffle for Cooling Rate in Injection Mold

사출성형금형에서 직선채널과 배플의 냉각효율 비교

  • Moon, Young-Bae (Graduate School of Mechanical Engineering, Pukyong National University) ;
  • Choi, Youn-Sik (Dept. of Mechatronics, Korea Polytechnic VI) ;
  • Jeong, Yeong-Deug (Division of Mechanical Engineering, Pukyong National University)
  • 문영배 (부경대학교 대학원 기계공학과) ;
  • 최윤식 (한국폴리텍VI대학 메카트로닉스과) ;
  • 정영득 (부경대학교 기계공학부)
  • Received : 2011.10.06
  • Accepted : 2012.04.13
  • Published : 2012.06.29
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Abstract

Plastic products are producted more than 70% of total processes in the injection molding. The injection molding process has 4 processes such as filling, packing, cooling and ejecting. It spends most of times in the cooling process. Therefore, it is important to control the mold temperature in producing plastic products. The time and system of cooling affect the product's quality and productivity. Especially, cooling time has about 60% of total injection cycle time. Therefore, we can improve a productivity by shortening cooling time. In this study, it was made a comparative study about cooling of linear channels and baffles and observed the variation of mold temperature on the coolant's temperature. As the result, the linear channel's cooling rate had faster than baffles and as coolant's temperature was increased, difference of cooling time was increased. Result of this study will be used widely to design for cooling system of injection mold.

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