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The effect of multiple variables on tensile property of injection-molded polypropylene through the combination of orthogonal design and variance analysis

机译:正交设计与方差分析相结合的多元变量对注塑聚丙烯拉伸性能的影响

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摘要

In this article, a combination of orthogonal design and variance analysis was used to study the systematical effect of vibration pressure, melt temperature, packing cycle, and mold temperature on the tensile property of polypropylene in dynamic packing injection molding (DPIM). The tensile measurement results show that all variables had significant influence on the final tensile property under the present molding condition. Meanwhile, the optimal molding condition to achieve high tensile strength was also obtained in the investigated ranges. Further quantitative statistical analysis revealed the degree of influence of four variables on the tensile property of polypropylene in DPIM. The sequence of the degree of influence from maximum to minimum is as follow: vibration pressure, melt temperature, packing cycle, and mold temperature. These findings provide the experimental and statistical evidences to illustrate that the application of orthogonal design and variance analysis might be an effective approach to systematically study the effect of multiple variables on the final mechanical property.
机译:本文将正交设计和方差分析相结合,研究了振动压力,熔体温度,保压周期和模具温度对动态填料注射成型(DPIM)中聚丙烯拉伸性能的系统影响。拉伸测量结果表明,在当前成型条件下,所有变量均对最终拉伸性能具有显着影响。同时,在研究范围内也获得了实现高拉伸强度的最佳成型条件。进一步的定量统计分析揭示了四个变量对DPIM中聚丙烯拉伸性能的影响程度。影响程度从最大到最小的顺序如下:振动压力,熔体温度,填充周期和模具温度。这些发现提供了实验和统计证据,说明正交设计和方差分析的应用可能是系统研究多个变量对最终机械性能影响的有效方法。

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