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首页> 外文期刊>Journal of Applied Polymer Science >Analysis of Crack Phenomenon for Injection-MoldedScrew Using Moldflow Simulation
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Analysis of Crack Phenomenon for Injection-MoldedScrew Using Moldflow Simulation

机译：用Moldflow模拟分析注塑螺丝的裂纹现象。

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摘要

The screw for ice water filter machine wasinjection molded with acrylonitrile-butadiene-styrene(ABS)/polycarbonate (PC) [ABS/PC] alloy resin and itscrack phenomenon after mechanical stress was analyzedby commercial Moldflow software. The cracked morphol-ogy and tensile properties of ABS/PC have been studiedby scanning electron microscopy (SEM) and universal testmachine (UTM). The injection pressure and the residualstress has been compared with two injection molding con-ditions as actual manufacturing and reduced injection flowrate. This analysis has found that residual stress is higher at actual manufacturing condition. SEM study reveals thatin the micrographs taken on the surface of cracked sampleABS rubber domains tend to extremely align in the direc-tion of mold flow. The combined data suggest that the ma-jority of the crack comes from residual stress in final partoriginated from higher injection pressure during injection-molding process.
机译：用丙烯腈-丁二烯-苯乙烯（ABS）/聚碳酸酯（PC）[ABS / PC]合金树脂注射成型冰滤水机的螺杆，并通过商用Moldflow软件分析了机械应力后的裂纹现象。通过扫描电子显微镜（SEM）和通用试验机（UTM）研究了ABS / PC的破裂形态学和拉伸性能。注射压力和残余应力已与两种注射成型条件作了比较，作为实际制造条件和降低的注射流量。该分析发现，在实际制造条件下残余应力较高。扫描电镜研究表明，在破裂样品的表面上拍摄的显微照片中，ABS橡胶区域在结晶器流动方向上趋于极度对准。综合数据表明，裂纹的大部分来自最终的残余应力，这归因于注塑过程中较高的注射压力。

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