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综述与专论
                                                                                     SPECIAL AND COMPREHENSIVE REVIEW



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                Non-drying injection molding machine is the direction of energy-saving,
                                     low-carbon and green injection molding

                                                                 1
                                                    Tao Yongliang  , Zhou Xin  2
                             (1. Chongqing Chuanyi Engineering Plastics Co. LTD., Chongqing 400712, China;
                              2. Chongqing Copolyforce New Materials Co. LTD., Chongqing 401332, China)

                    Abstract: Moisture absorption is a property endowed to materials by hydrophilic groups in plastics. To
                eliminate the moisture absorption of plastics, people usually use various drying devices to pre dry plastics,
                but this process requires a lot of material and human resources, and the cost is high. This article explores the
                shortcomings of traditional plastic drying methods and introduces the basic principles of non-drying injection
                molding machines. By analyzing the advantages of non-drying injection molding machines in practical
                applications, it is pointed out that they will revolutionize traditional drying processes, allowing moisture
                absorbing materials to be directly used for injection molded products. Based on practical cases of commonly
                used plastics such as PA6, PET, and PC (PMMA) used on site, the plastic parts meet the quality requirements.
                non-drying injection molding machines are expected to become a development trend for energy-saving,
                low-carbon, and green injection molding.
                    Key words: non-drying injection building; low-carbon green; stable processing; improving quality; energy
                conservation and efficiency improvement
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                2025     第   51 卷                                                                      ·17·
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