소성∙가공 (Transactions of Materials Processing)

  • 제15권8호
  • /
  • Pages.628-632
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  • 2006
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  • 1225-696X(pISSN)
  • /
  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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사출성형에서 Gate Mark의 형성에 관한 연구

A Study on the Formation of Gate Mark in Injection Molding

  • 김준민 (서울산업대학교 산업대학원) ;
  • 김동우 (서울산업대학교 산업대학원) ;
  • 황수진 (서울산업대학교 산업대학원) ;
  • 류민영 (서울산업대학교 금형설계학교, 정밀기계기술연구소)
  • 발행 : 2006.11.01
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초록

The gate mark in injection molded part is a kind of surface defects. The formation of gate mark has been investigated in this study. SEM photographs and surface roughness have been examined to study gate mark. The specimens were molded for various injection conditions, such as injection temperature, mold temperature, and injection speed. Gate diameter and mold surface condition were also molding variables. Gate marks were reduced as injection speed and mold temperature increased. Gate diameter and injection temperature did not affect the gate marks. No etching of mold surface showed no gate marks for any molding conditions.

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참고문헌

  1. 권태현, 박성진, 윤경환, 이상봉, 정영득, 2004, 사출성형 CAE 지침, 문운당, pp. 60-75
  2. Jing Chung Huang, 이희관, 양균의 , 2003, 식각 표면패턴의 사출성형에 관한 실험적 연구, 한국정밀공학회지, 제20권 제2호, pp. 25-32
  3. M. J. Oliveira, A. M. Brito, L. F. Costa, M. C. Costa, 2004, A Study on the Influence of Surface Roughness and Injection Molding Parameters on the Gloss of ABS parts, ANTEC, pp. 3534-3538
  4. H. HAMADA, H. TSUNASAWA, 1996, Correlation Between Flow Mark and lnternal Structure of Thin PCI ABS Blend Injection Moldings, Journal of Applied Polymer Science, Vol. 60, pp. 353-362 https://doi.org/10.1002/(SICI)1097-4628(19960418)60:3<353::AID-APP8>3.0.CO;2-K