Twin-roll strip casting of magnesium alloys in China
(1. National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China;2. Shanxi Wenxi Yinguang Magnesium Group Co. Ltd., Yuncheng 043800, China)
Abstract: The development status of twin-roll strip casting for magnesium alloys in China was summarized as well as the new progress when several kinds of twin-roll strip casting technologies were developed and used. Horizontal twin-roll casting (HTRC) of magnesium alloys has attracted much attention and has been industrialized in China. Vertical twin roll casting (VTRC) of the magnesium alloys can reach a speed of higher than 30 m/min and its research and development are just beginning and exhibit exciting potential. By comparing the process characteristics of the two technologies, the process stability of HTRC for the magnesium alloys is better, and the casting speed and the cooling rate of VTRC for the magnesium alloys are higher. The quality of the products by the two technologies needs to be improved and further investigated.
Key words: magnesium alloys; twin-roll casting; development; status