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http://dx.doi.org/10.5228/KSPP.2002.11.8.691

A Study on Paintless Molded Parts in TV Mask Front Using Gas-Assisted Injection Molding  

조재성 (한국산업기술대학교)
Publication Information
Transactions of Materials Processing / v.11, no.8, 2002 , pp. 691-700 More about this Journal
Abstract
Injection molded plastic parts have many surface detects: weld line, sink mark, flow mark, gloss, shading, scratching, and so on. Because these surface faults have not been accepted esthetically, plastic parts are Produced through painting or texturing. The purpose of this paper is to develop a paintless molded part of TV Mask Front by flow control method and gas-assisted injection molding. In order to minimize defects from injection molding, this study was carried out using computer aided injection mold filling simulations using MF/FLOW and MF/GAS. Based on these numerical results, we developed FR(Flame Retardant) HIPS and established guidelines of part design, mold design, and Processing conditions. We have achieved of cost sayings, improvement of productivity, and utilization of recycling by eliminating surface defects and painting process.
Keywords
Paintless; Injection Molding; Gas-Assisted molding; Weld Line; Sink Mark;
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  • Reference
1 Simulation of Co-Injection and Gas Assisted Injection Molding /
[ L. S. Tung;V. W. Wang ] / ANTEC
2 Development and Application of CAE Technology for the Gas-Assisted Injection Molding Process /
[ L. S. Tung ] / Adv. Poly. Tech.
3 /
[ Robert A. Malloy ] / Plastic Part Design for Injection Molding
4 폴리스티렌에 의한 무도장 패널개발 /
[ Toshio Takagi ] / Plastic science
5 재료, 금형, 성형법을 재평가한다 /
[] / 월간프레스&형기술
6 Effect of Processing on Weld Line Strength in Five Thermoplastics /
[ Selden R. ] / Polymer Engineering and Science   DOI   ScienceOn
7 /
[ Yokoi Hidetoshi;Murata Yasuhiko;Watanabe Hiromi ] / Visual Analysis of Weld-line Generating and Vanishing Process Using a Glass Inserted Visual Mold