PC吹塑成型工艺介绍

PC吹塑成型工艺介绍

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摘要

论文针对PC吹塑工艺的现状和发展趋势及工艺的内容进行阐述。吹塑成型保证了成型制品的大批量及经济生产，满足了人们的日益需求。吹塑成型包括：向软化的热塑性的型坯中充气，使其紧贴到封闭模具的冷却表面，被吹胀的型坯凝固，形成中空塑料制品。吹塑制品的表面光滑并且带有光泽，或在加工处理过程中，制品表面形成刻花或雕刻花纹。吹塑成型适用于大多数的塑料，所以其在各种塑料成型工艺中占有很大优势。作为一种新材料和新的成型工艺，吹塑成型工艺将会不断发展，成为塑料工业未来的发展趋势。注射吹塑成型是一门工程技术，它所涉及的内容是将塑料转变为有用并能保持原有性能的制品。注射吹塑成型的重要工艺条件是影响塑化流动和冷却的温度，压力和相应的各个作用时间。主要针对目前成型品产生不良有原因加以分析判断，在成型机，模具及原料方面提供参考因素从而有效的控制不良的产生，降低生产成本。

关键词：聚碳酸酯 特性 工艺条件 注塑成型 干燥

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Abstract

Paper for PC molding process and the status quo and development trend of the content on process. Blow molding to ensure a large number of molding products and economic production, to meet the growing needs of the people. Blow molding include the following: to soften the thermoplastic of the inflating parison to mold close to the closed cooling surface, the inflation of the parison solidification, the formation of hollow plastic products. Blow molding products, and with a shiny surface, or in the processing process, the products formed on the surface of engraving or carving patterns. Applicable to the majority of blow molding of plastic, so its in a variety of plastic molding processes account for a large advantage. As a new materials and new forming processes, blow molding process will be continuous development of the plastics industry to become the development trend of the future. Injection blow molding is an engineering technology, it is involved in the plastic and into a useful product to maintain the original performance. Injection blow molding is an important process conditions affect the plastics flow and cooling the temperature, pressure and the corresponding time in all. The main view of the current adverse moldings are to be analyzed to determine the reasons, in the molding machine, mold and provide

reference to the factors of raw materials so as to effectively control the selection of non-performing, lower production costs.

Key word: Polycarbonate Characteristic Technological conditions Injection

molding Dry

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目录

摘 要 ??????????????????????????????Ⅰ Abstract ?????????????????????????????Ⅱ 绪 论 ?????????????????????????????? 1 第一章 吹塑成型的介绍 ???????????????????????2 1.1 工业规模????????????????????????????2 1.2 塑料原料（聚碳酸酯PC） ????????????????????2 1.3 基本吹塑成型过程 ??????????????????????? 3 1.4 吹塑成型类型 ????????????????????????? 5 1.5 过程控制 ??????????????????????????? 7 1.6 吹塑成型的成型基础???????????????????????8 1.7 吹塑成型的变量?????????????????????????9 1.8 吹塑成型的工艺???????????????????????? 10 1.9 制品和模具设计???????????????????????? 10 1.10 加工原则???????????????????????????11 第二章 注射吹塑成型及工艺参数 ?????????????????? 13 2.1 注射过程 ???????????????????????????13 2.2 注塑工艺参数的设定 ??????????????????????16 2.3 成型基础 ?????????????????????????? 22 2.4 吹塑成型设备????????????????????????? 23 第三章 聚碳酸酯（PC）桶的挤出吹塑成型 ??????????????? 28 3.1聚碳酸酯（PC） ???????????????????????? 28 3.2 生产工艺??????????????????????????? 29 3.3 生产参数 ?????????????????????????? 30 3.4 模具 ???????????????????????????? 31 3.5 成型设备 ?????????????????????????? 32

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3.6 辅机及调整 ??????????????????????????36 第四章 常见产品质量缺陷的产生及解决方案 ????????????? 38

附表一 ????????????????????????????? 42 结 论 ??????????????????????????????43致 谢???????????????????????????????44 参考文献????????????????????????????? 45

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