Design & Manufacturing
- Volume 6 Issue 2
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- Pages.79-83
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- 2012
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- 2800-0323(pISSN)
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- 2733-452X(eISSN)
A study on the flashes and filling defects of inner part and on problem-solving measures
내통의 플래시 및 충진불량에 대한 해결방법에 관한 연구
- Kim, Sei-hwan (Div. of Mechanical & Automotive Engineering, Kongju National University) ;
-
Choi, Kye-kwang
(Div. of Mechanical & Automotive Engineering, Kongju National University)
;
- Lee, Choon-kyu (Department of Metal Mold Design Engineering, yuhan University)
- Received : 2012.08.29
- Accepted : 2012.11.30
- Published : 2012.12.30
Abstract
Inner part is used as an insulator in wire fuses. After injection molding, inner part has been showed flashes, filling defects and deformation. After production, operators have to cut off flashes, one by one. this process leads to continuous low productivity and loss of source materials. This study focuses on identifying the causes for flashes, filling defects, clamping force of injectors, mold adhesion, resin of liquidity and others, and on resolving those issues.
Keywords
- wire fuse;
- insulator;
- flash;
- injection molding;
- filling defect;
- clamping force;
- mold of adhesion;
- resin of liquidity