한국윤활학회:학술대회논문집 (Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference)
- 한국윤활학회 2002년도 제35회 춘계학술대회
- /
- Pages.285-290
- /
- 2002
유한요소법을 이용한 다중날 사출기 스크류의 열거동 특성 연구
A Study on Thermal Behavior Characteristics of Multi-flight Screw in Injection Molding Machine by FEM
-
조승현
(홍익대학교 트라이볼로지 연구센터)
;
- 이영숙 (홍익대학교 트라이볼로지 연구센터) ;
- 김성원 (홍익대학교 트라이볼로지 연구센터) ;
- 김청균 (홍익대학교 트라이볼로지 연구센터)
-
Cho, Seung-Hyun
(Tribology Research Center, Hongik University)
;
- Lee, Young-Suk (Tribology Research Center, Hongik University) ;
- Kim, Sung-Won (Tribology Research Center, Hongik University) ;
- Kim, Chung-Kyun (Tribology Research Center, Hongik University)
- 발행 : 2002.05.16
초록
Screw in injection molding machine is affected by heat flux, pressure on inside barrel, geometry of screw including flight number, pitch and flight angle. Volumetric efficiency increases as the flight number increases, but it didn't show steady tendency according to helix angle of flight. Heat flux from heating pad and injection pressure play a very important role on the thermal behavior characteristics. The increased number of multi-flight is merits and demerits for a screw efficiency. So, we have to optimize flight number of the screw considering temperature, displacement, distortion and stress of the screw.