Study on Influencing Factors of High-Temperature Rapid Molding Product on the Rehabilitation of Mold Cavity

Article Preview

Abstract:

Impact of product on the replication performance of mold cavity was tested and studied in the high-temperature rapid molding process based on high-fitness mold for in-vehicle Bluetooth module compartment cover. The results indicated that the main difference between high-temperature rapid molding and common molding is that when the mold temperature rises to around the plastic heat distortion temperature, the product’s reproduction rate of the mold cavity surface is improved significantly. In the area lower or higher than the plastic heat distortion temperature, the changes on mold temperature hardly influence the reproduction rate of product and the impacts of other parameters are similar to those of common molding; the impacts of major molding parameters on the product mass from large to small are “packing pressure- dwell time- injection time- mold temperature- injection pressure- melt temperature”.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 383-390)

Pages:

6337-6342

Citation:

Online since:

November 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] T. Satio, I. Satoh, Y. Kurosaki., A new Concept of Active Temperature Control for an Injection Molding Process Using Infrared Radiation Heating [J],. Polymer Engineering and Science, vol. 42(12): pp.2418-2429, (2002).

DOI: 10.1002/pen.11128

Google Scholar

[2] D. G. Yao, B. Kim, Injection Molding High Aspect Ratio Microfeatures [J]. Journal of Injection Molding Technology, 2002, vol. 6(1): pp.131-137.

Google Scholar

[3] Zhang Hongchao, Impact of Injection Molding Process Parameters on the Filling of Hollow of Micro-feature [D]. Taiwan, China: National Cheng Kung University, (2004).

Google Scholar

[4] Sha B, Dimov S, Griffiths C, et al. Investigation of micro—injection moulding: factors affecting the replication quality [J]. Journal of Materials Processing Technology, 2007, vol. 183(3): pp.284-296.

DOI: 10.1016/j.jmatprotec.2006.10.019

Google Scholar

[5] Y . Yang, F. R. Gao, Injection molding product weight: online prediction and control based on a nonlinear principal component regression model[J]. Polymer Engineering and Science, 2006, vol. 46(4): pp.540-548.

DOI: 10.1002/pen.20522

Google Scholar

[6] P. Postawa, J. Koszkul, Change in injection moulded parts shrinkage and weight as a function of processing conditions[J]. Journal of Materials Processing Technology, 2005, vol. 163(3): pp.109-115.

DOI: 10.1016/j.jmatprotec.2005.02.241

Google Scholar