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Experimental Study on Foam Formation on Gas Channel Wall in Gas·-AssistedInjection Molded Parts
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[1]ZHENG Guoqiang,JIANG Zhihui,LI Qian,et al.Experimental Study on Foam Formation on Gas Channel Wall in Gas·-AssistedInjection Molded Parts[J].Journal of Zhengzhou University (Engineering Science),2009,30(04):85-88.
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 30卷 Number of periods: 2009年04期 Page number: 85-88 Column: Public date: 1900-01-01
Title:
Experimental Study on Foam Formation on Gas Channel Wall in Gas·-AssistedInjection Molded Parts
Author(s):
ZHENG Guoqiang; JIANG Zhihui; LI Qian; etc
The key Laboratory of Advanced Matenials processing＆of Ministry of Education，Zhengzhou University，Zhengzhou 450001China)
Keywords:
gas-assisted injection molding;  Process parameters;  Bubble formation
CLC:
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DOI:
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Abstract:
In the gas—assisted injection molding，foaming structure in the gas channel region is a key factoraffecting the mechanical and optical performance of the GAIM part．An experiment was carried out to study theeffects of the processing conditions on foam formation in the gas—assisted injection molding，using quantitativeanalysis method．The relationship between the processing parameters and foam formation on the gas channelwall was discussed and the reasons leading to foam was analyzed．The results reveal that foam can be avoidedby lowering the melt temperature，reducing the gas injection pressure and the holding pressure as well as theholding time．
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Last Update: 1900-01-01
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