New technologies for processing magnesium alloy sheet and their industry applications

摘要

A set of new technologies for processing magnesium alloy sheet have been developed, including new materials, rolling techniques and texture control. Several wrought magnesium alloys with high plasticity and formability were proposed through minor alloying and grain refinement. The magnesium alloy plate coils with 100-500mm wide and l-3mm thick were extruded through flat container and unique mould, with fine uniform equiaxied grains and weak basal texture. After treated by unique repeated bending technique, the basal texture of magnesium alloy sheet was further weakened. Meanwhile, the new system for processing magnesium alloy sheet coil and continuously on-line controlling the basal texture was developed. The mobile phone housings were punched in room temperature using the treated magnesium alloy sheet due to the obvious weakness of basal texture.