半結晶聚合物應用PVT控制技術與射出成型品質之參數優化研究

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doi:10.6840/cycu201700778

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半结晶聚合物应用PVT控制技术与射出成型品质之参数优化研究

The Study of semi-crystalline Parameters Optimization of injection molded part quality by PVT control method

黄品纲 , 硕士　　导师：陈夏宗　　

繁体中文 DOI： 10.6840/cycu201700778

动态PVT历程控制；射出成型品质控制；压力感测器；红外线温度感测器； Dynamic PVT control method ； injection molding quality control ； pressure sensor ； infrared temperature sensor

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摘要 │ 参考文献 (26) │ 国际计量

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Due to the production development, the cratiria for plastic product is not only focused on the process stability but the product properties as well. Traditionally, the properties are usually taken over by the human experienced rather than a scientific mold trial process. The pressure-specific volume-temperature (PVT) property of polymer is essential for polymer processing, and it appears a feasible method to achieve high quality products; especially, for the semi-crystalline material, it is rely on the PVT changed during the whole molding process. 
This study is base on a strip model with 2 mm in thickness and 100 in the ratio of flow-length with thickness. Material is semi-crystalline thermoplastic polypropylene (PP). The PVT control system with three pressure and infrared temperature sensors are prepared for mold inserted. The purpose of this experiment is to monitor the injection process and using the cross data to analysis the influences amount PVT, and further to control the product qualities.
The result shows that the PVT control system can optimize the product properties effectively with the starndard molding parameter settings. The properties are directly related to the PVT diagram, and the influence between molding parameters and product qualities are investigated. Dynamic PVT control technology shows that the optimum product characteristic for 23% in shrinkage deviation on whole part, 18% in part warpage. Simulation is in the end verified with the experiment, and it is highly agreed with the results.
Key words: Dynamic PVT control method; injection molding quality control; pressure sensor; infrared temperature sensor

参考文献 ( 26 ) 〈TOP〉

3.Jansen, K. M. B., Van Dijk, D. J., & Husselman, M. H. (1998). Effect of processing conditions on shrinkage in injection molding. Polymer Engineering & Science, Vol.38, No. 5, pp. 838-846.
连结：
4.Wang, J., Xie, P. C., Ding, Y. M., & Yang, W. M. (2010). Study on the end-point control of holding phase during injection molding. Advanced Material Research, Vol. 87-88, (2010), pp. 222-227. ISSN 1662-8985
连结：
5.Wang, J., Peng, J., & Yang, W. (2011). Filling-to-packing switchover mode base on cavity temperature for injection molding. Polymer-Plastics Technology, Vol. 50, No. 12, pp. 1273-1280. ISSN 0360-2559 
连结：
7.He, J. & Zoller, P. (1994). Crystallization of polypropylene, nylon-66 and poly(ethylene terephthalate) at pressures to 200 MPa: kinetics and characterization of products, Journal of Polymer Science Part B: Polymer Physics, Vol. 32, No. 6, pp. 1049-1067. ISSN 0887-6266
连结：
9.Sato, Y., Yamasaki, Y., Takishima, S., & Masuoka, H. (1997). Precise measurement of the PVT of polypropylene and polycarbonate up to 330 C and 200 MPa. Journal of applied polymer science, Vol. 66, No. 1, pp. 141-150. ISSN 0021-8995
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引用含有DOI的文献

DOI可强化引用精确性、增强学术圈连结，并给予使用者跨平台的良好使用经验，目前在全世界已有超过五千万个对象申请DOI。 如想对DOI的使用与概念有进一步了解，请参考 （ ） 。

DOI可强化引用精确性、增强学术圈连结，并给予使用者跨平台的良好使用经验，目前在全世界已有超过五千万个对象申请DOI。如想对DOI的使用与概念有进一步了解，请参考（）。