【摘要】 目的设计利用废旧PET生产扁丝的专用设备,以解决PET扁丝生产过程中断丝情况严重,无法正常连续生产的难题。方法通过分析扁丝生产的工艺过程,合理划分生产线工位,并对其设备进行机械结构设计,验证其合理性。结果制得的PET扁丝有较好的韧性、拉伸性能,断裂强度达50 MPa以上,可应用于生产高性能的编织袋和集装袋。结论其专用设备组成的生产线可实现PET扁丝的连续化生产。废旧PET的利用既降低了生产成本,提高了经济效益,又充分利用了资源,同时也有利于环境保护。更多还原

【Abstract】 To solve the problem of severe breakage during production of PET flat film tape and interruption of normal continuous production, a special equipment was design for production of flat film tape using waste PET. Through analysis of the production process of flat film tape, stations were divided reasonably, the mechanical structure of the equipment was designed, and the rationality was confirmed. The flat film tapes with high toughness and excellent stretch properties were obtained, with a breaking strength of up to 50 MPa, which could be used for production of high-performance woven sacks and bags. The production line consisted by this type of special equipment could realize continuous production of PET flat film tape. The utilization of waste PET reduced the production cost and enhanced the economic efficiency, and meanwhile saved the natural resources. Moreover, it would be beneficial for environmental protection.更多还原