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dc.contributor.authorWU, JSen_US
dc.contributor.authorLEE, MJen_US
dc.date.accessioned2014-12-08T15:04:14Z-
dc.date.available2014-12-08T15:04:14Z-
dc.date.issued1994en_US
dc.identifier.issn0959-8111en_US
dc.identifier.urihttp://hdl.handle.net/11536/2726-
dc.description.abstractGas counter pressure structural foam injection molding (CPSF) with hot runner mold was successfully developed in this study. The process has overcome the disadvantages of the low pressure structural foam injection molding (LPSF). Having a sufficient short-shot weight, a critical timing for the counter pressure to release, and a sufficient amount of counter pressure to prevent foaming during melt injection were deemed necessary for the sake of achieving a part free from surface defects through application of this developed CPSF process. The surface smoothness of the CPSF part was observed under these conditions to be substantially better than that of the LPSF parts molded under the same processing conditions. For the LPSF part, the surface roughness was indicated to increase progressively in the direction of melt flow from the cold sprue towards the end of the part. The processing conditions found to enhance the surface smoothness of the LPSF part were a higher melt temperature, higher mold temperatures, higher short-shot weight, higher injection speed, and lower blowing agent concentration.en_US
dc.language.isoen_USen_US
dc.titleSTUDIES ON GAS COUNTER PRESSURE AND LOW-PRESSURE STRUCTURAL FOAM MOLDING .1. PROCESS DESIGN AND EFFECT OF PROCESSING CONDITIONS ON SURFACE QUALITY OF MOLDED PARTSen_US
dc.typeArticleen_US
dc.identifier.journalPLASTICS RUBBER AND COMPOSITES PROCESSING AND APPLICATIONSen_US
dc.citation.volume21en_US
dc.citation.issue3en_US
dc.citation.spage163en_US
dc.citation.epage171en_US
dc.contributor.department交大名義發表zh_TW
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentNational Chiao Tung Universityen_US
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:A1994NC55400004-
dc.citation.woscount3-
Appears in Collections:Articles