求翻译 Moldflow 注塑成型的翻译 一段论文摘要翻译 求大神人工翻译！不要机器翻译
本论文针对手机前盖零件，利用Moldlfow软件中的双色成型模块，采用“充填+保压+重叠注塑充填+重叠注塑保压”分析序列进行了双色注塑成型分析，试验结果表明：该零件应采用...
本论文针对手机前盖零件，利用Moldlfow软件中的双色成型模块，采用“充填+保压+重叠注塑充填+重叠注塑保压”分析序列进行了双色注塑成型分析，试验结果表明：该零件应采用中速填充，通过流动分析发现，第一射充填时间为1.3s，第二射充填时间为1.2s，均在常规注塑时间范围内（0.8~2.0s）；第一射最大压力是180MPa，第二射最大压力是162MPa，试验结果小于200MPa，在合理范围值内；第一射在3.99s时制品已经完成冻结，第二射在3.12s时制品完成冻结，实际注塑时能参照此数值作为保压时间设置的初始值；熔体流动前沿温度变化及熔接线两侧温度差均在10℃之内，符合实际标准，可以很好满足产品的成型要求，且不会影响产品的外观；第一射最大锁模力为3.53吨，第二射最大锁模力为19.52吨，故建议选用25吨以上的注塑机台；该零件体积收缩率为7%，缩痕风险很小。
【关键词】手机外壳；双色注塑；注塑成型；Moldflow 展开
【关键词】手机外壳；双色注塑；注塑成型；Moldflow 展开
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Aiming at the front cover part of mobile phone this paper uses the two-color molding module in the Moldlfow software to
carry out the analysis of two color injection molding using an analysis sequence of the "filling + pressure maintaining+
overlapping molding filling + overlapping molding pressure maintaining" .The experimental results show that: this part should
be filled with medium speed, and it is found through flow analysis that the filling time of the first injection should be 1.3s,
and the filling time of the second injection should be 1.2s, both are within a conventional injection time (0.8 ~ 2.0s); the
maximum pressure of the first injection is 180MPa, and the maximum pressure of the second injection is 162MPa, the test
results are less than 200MPa. The product is set completely at 3.99s during the first injection and it is set completely in
3.12s. So this value can be used as the initial value of the pressure maintaining setting in the actual injection molding. The melt flow front temperature changes and the temperature differences on both sides of the weld line are within 10 ℃, in
accordance with the realistic standard, well meeting the requirements of the product forming, and not affecting the
appearance of the product. The maximum clamping force of the first injection is 3.53 tons, and for the second injection it is 19.52 tons of clamping force. Consequently, it is suggested that an injection molding machine which is more than 25 tons
should be chosen; The part volume shrinkage rate is 7%, the risk of sink marks is small.
Key words: mobile phone casing; two-color injection molding; injection molding; Moldflow
carry out the analysis of two color injection molding using an analysis sequence of the "filling + pressure maintaining+
overlapping molding filling + overlapping molding pressure maintaining" .The experimental results show that: this part should
be filled with medium speed, and it is found through flow analysis that the filling time of the first injection should be 1.3s,
and the filling time of the second injection should be 1.2s, both are within a conventional injection time (0.8 ~ 2.0s); the
maximum pressure of the first injection is 180MPa, and the maximum pressure of the second injection is 162MPa, the test
results are less than 200MPa. The product is set completely at 3.99s during the first injection and it is set completely in
3.12s. So this value can be used as the initial value of the pressure maintaining setting in the actual injection molding. The melt flow front temperature changes and the temperature differences on both sides of the weld line are within 10 ℃, in
accordance with the realistic standard, well meeting the requirements of the product forming, and not affecting the
appearance of the product. The maximum clamping force of the first injection is 3.53 tons, and for the second injection it is 19.52 tons of clamping force. Consequently, it is suggested that an injection molding machine which is more than 25 tons
should be chosen; The part volume shrinkage rate is 7%, the risk of sink marks is small.
Key words: mobile phone casing; two-color injection molding; injection molding; Moldflow
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