An Experimental Study on Micro Thixoforming Processing Parameters for Reaction Plate with Micro-Pin-Fin Arrays

Abstract:

Processing parameters of micro thixoforming, such as height-diameter ratio, die/punch temperature, billet temperature, and punch speed, have direct and complex impact on final quality of the workpiece, which is to be applied as the reaction plate of a microreactor for hydrogen production from methanol steam reforming. The micro/meso features of the workpiece, which is for catalyst loading, are micro-pin-fin arrays. Size of the surface area and uniformity of the pin-fins are quantified by average height (Ha) and relative standard deviation (RSD). An orthogonal experiment design is adopted to investigate the influence of the parameters on the semi-solid forming process. The results of the orthogonal experiment show that the optimum parameters are 150 °C for die/punch temperature, 576 °C for billet temperature, 0.14 for height-diameter ratio and 8.33 mm/s for punch speed. The experimental results validate that the optimized processing parameters can improve the quality of the reaction plate with micro-pin-fin arrays.

• Periodical: Advanced Materials Research (Volumes 154-155)
• Pages: 907-912
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.154-155.907
• Online since: October 2010
• Authors: Hong Hua Zhou, Zhe He Yao, Zi Chen Chen
• Keywords: Micro-Pin-Fin Arrays, Orthogonal Experiment Design, Processing Parameter, Reaction Plate

References

[1] X. Mu, L.W. Pan, J.S. Jia and S.D. Wang: J. Fuel Chem. Technol. Vol. 36(3) (2008) p.338.

[2] D.J. Seo, W.L. Yoon, Y.G. Yoon, S.H. Park, G.G. Park and C.S. Kim: Electrochim. Acta Vol. 50 (2004), p.719.

[3] T. Kim and S. Kwon: J. Micromech. Microeng. Vol. 16 (2006) p.1760.

[4] T. Terazaki, M. Nomura, K. Takeyama, O. Nakamura, and T. Yamamoto: J. Power Sources Vol. 145 (2005) p.691.

[5] K. Steinhoff, U. Weidig and J. Weikert: J. Iron Steel Res. Vol. 75(8/9) (2004) p.611.

[6] G.Y. Kim, J. Ni, R. Mayor, and H. Kim: ASME J. Manuf. Sci. Eng. Vol. 129(2) (2007) p.246.

[7] H.K. Jung and C.G. Kang: J. Mater. Process. Technol. Vol. 120 (2002) p.355.