Research on the Shrinkage Cavity and Broken Graphite Mold Core of Copper Alloy in Horizontal Continuous Casting

Abstract:

Copper tube produced by FA6502 copper alloy in a company of Wuhan appears shrinkage cavity in horizontal continuous casting, the graphite mold core which exerts stretching effects is easy to be snapped in production process. The reason why shrinkage cavity appears is found through large number of experiments and analysis. Then we adjust the component of FA6502 copper alloy, the quality of new copper alloy FA6506 is improved significantly. Furthermore, we find the reason why the graphite mold core is snapped in production process, FA6502 copper alloy’s shrinkage rate is too large in solidification. The compact power of the graphite mold core is too large to bear, too much resistance in pulling process is exerted so that the graphite mold core is snapped.

• Periodical: Advanced Materials Research (Volumes 415-417)
• Pages: 1171-1175
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.415-417.1171
• Online since: December 2011
• Authors: Si Nian Li, Yuan Chen, Jia Wang Ye, Shi Zhong Zhang, An Chun Xiao, Hui Min Chen, Zhong Zheng, Hong Chen
• Keywords: Copper Tube, Horizontal Continuous Casting, Shrinkage Cavity, Shrinkage Rate

References

[1] Yifeng Zan: Steel Marking. Vol. 1 (China 1995), p.25

[2] Yongjian Zhou: Shanghai Nonferrous Metals. Vol. 18 (China 1997), p.114

[3] I.D. Yeo, T.Y.Ra and H.S. Kim. J. Mater. Sci. Technol. Vol. 24 (2008), p.309

[4] Tao Wang: Nonferrous Metals Processing. Vol. 34 (China 2005), p.1

[5] Bin Ma and Shenghua Zhang: Hunan Nonferrous Metals. Vol. 17 (China 2001), p.35

[6] Shumei Guo: Special Casting and Nonferrous Metals. (China 2003), p.18

[7] Shenghua Zhang, Xiangwei Zhao, Zhenzhen Zhan and Yinguo Xiao: Materials for Mechanical Engineering. Vol. 28 (China 2004), p.35