| 引用本文: | 王建,杨卫民,谢鹏程,丁玉梅.利用聚合物PVT关系在线控制技术的实验研究[J].材料科学与工艺,2011,19(3):144-148.DOI:10.11951/j.issn.1005-0299.20110328. |
| WANG Jian,YANG Wei-min,XIE Peng-cheng,DING Yu-mei.Experimental study of on-line control technique by polymer PVT relationships[J].Materials Science and Technology,2011,19(3):144-148.DOI:10.11951/j.issn.1005-0299.20110328. |
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| 摘要: |
| 为了提高注射成型过程的控制精度,研发了一种利用聚合物PVT(压力-比容-温度)关系在线控制技术,分别在制品质量重复精度、模具温度的变化、制品质量变化、模腔熔体压力和温度的变化情况等方面做了详细的分析和讨论.研究发现,这种在线控制技术利用控制熔体压力和温度关系实现了对熔体比容的控制,从而可以大幅度提高制品质量重复精度. |
| 关键词: 注射成型 聚合物PVT关系 在线控制 模腔熔体温度 模具温度 |
| DOI：10.11951/j.issn.1005-0299.20110328 |
| 分类号:TQ320.662 |
| 基金项目:国家科技支撑计划(2007BAF13B01);国家自然科学基金(50973009) |
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| Experimental study of on-line control technique by polymer PVT relationships |
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WANG Jian, YANG Wei-min, XIE Peng-cheng, DING Yu-mei
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Mechanical and Electrical Engineering College,Beijing University of Chemical Technology,Beijing 100029
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| Abstract: |
| To improve the control accuracy of injection molding process,an on-line control technique by polymer PVT relationships was presented.Several issues,including the variation of mold temperature and its influence,the part mass repeatability and mass variation,the variation of cavity pressure and temperature,were analyzed.The specific volume control by controlling the relationship of pressure and temperature was realized by the technique,which could improve the part quality repeatability greatly. |
| Key words: injection molding polymer PVT relationships on-line control cavity temperature mold temperature |
