Injection molding is one of the commonly used processes for plastic part production due to numerous advantages, such as rapid production, complex shape modability, and material selectivity. However, highly experience‐based conventional production restrains the industry development. Company know‐how loses with the experienced operator's left. On the other hand, molded part quality was only based on the operator check. There is without an effective solution to maintain its stability and defect‐free adjustment. How to establish a scientific injection molding setup and quality control method is an urgent topic. This study established a practical method for quality monitoring based on the pressure‐volume‐temperature (PVT) property. The PVT processing path control for scientific molding parameter setup was investigated. This is not only the method for parameter optimization but also the molded part quality control. Three major qualities were discussed in this study, including product weight, shrinkage, and warpage. By the molding condition optimization, three qualities improved up to 1%, 41.9%, and 9.2%, respectively.

中文翻译：

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科学注射成型参数设定的PVT控制方法建立及其质量控制的研究

由于具有许多优点，例如快速生产，复杂的形状适应性和材料选择性，注射成型是塑料零件生产的常用方法之一。但是，基于经验的常规生产会限制行业发展。公司的专业知识会因经验丰富的操作员而遗失。另一方面，成型零件的质量仅取决于操作员的检查。没有有效的解决方案来维持其稳定性和无缺陷的调整。如何建立科学的注塑成型设置和质量控制方法是当务之急。本研究建立了一种基于压力-体积-温度（PVT）特性的质量监控实用方法。研究了用于科学成型参数设置的PVT加工路径控制。这不仅是参数优化的方法，而且还是成型件质量控制的方法。在这项研究中讨论了三个主要质量，包括产品重量，收缩率和翘曲。通过优化成型条件，三个质量分别提高了1％，41.9％和9.2％。