On the Warpage in the Lower Case of Lead-Acid Batteries

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Abstract:

The study aimed at improving the problems of warpage occurring in the mold injection of battery lower cases. Firstly, the effects of variations of molding parameters are investigated in order to minimize the warpage. Secondly, Moldflow software is employed to simulate the molten plastic flow inside the cavity, and followed by the holding pressure analysis. Moreover, Taguchi method is applied to find the optimum distribution of mold temperature, and its results are used to design cooling tubes. Finally, different cooling systems are parametrically simulated and the optimum combinations will be found. The analytical results indicate that the optimum parameters can reduce the warpage problem occurring during mold injection. Therefore, the yield rate of the products can be effectively raised.

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Periodical:

Advanced Materials Research (Volumes 97-101)

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51-54

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March 2010

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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[1] W. H. Hsieh, K. M. Shu, K. W. Huang, and B. Y. Lin, Moldflow Analysis of Battery Upper Cases, the Fifth National Conference on Precision Manufacturing, Kaohsiung, Taiwan, 2006. (In Chinese).

Google Scholar

[2] K. M. B. Jansen, D. J. Van. Dijk, and M. H. Husselman, Polymer Engineering and Science, Vol. 38, No. 5, pp.838-846, (1998).

Google Scholar

[3] T. Matsuoka and J. I., Takabatake, A. Koiwai, Y. Inoue, S. Yamamoto, and H. Takahashi, Polymer Engineering and Science, Vol. 31 (1991), No. 14, pp.1043-1050.

DOI: 10.1002/pen.760311408

Google Scholar

[4] H. Kurtaran and T. Erzurumlu, International Journal of Advanced Manufacturing Technology, Vol. 40 (2005), pp.468-472.

Google Scholar

[5] W. C. Chen, M. W. Wang, C. T. Chen, G. L. Fu, International Journal of Advanced Manufacturing Technology, Vol. 44 (2009), pp.501-511.

Google Scholar

[6] Y. H. Gao, X. C. Wang, Vol. 209 (2009), pp.1302-1309.

Google Scholar

[7] J. Jin, H. Y. Yu, S. Lv, Optimization of Plastic Injection Molding Process Parameters for Thin-Wall Plastics Injection Molding, 8th China-Japan International Conference on Ultra-Precision Machining, Changsha, P. R. China, Nov. 24-25 (2008).

DOI: 10.4028/www.scientific.net/amr.69-70.525

Google Scholar

[8] W. H., Hsieh, Journal of the Chinese Society of Mechanical Engineers, Vol. 27 (2006), pp.99-107.

Google Scholar