Xiaomi and Huawei file patents related to magnesium alloys
2025-07-25 11:12:51 [Print]
Xiaomi EV Technology Co
Meanwhile, Huawei Technologies Co., Ltd . has also filed a patent titled "Magnesium Alloy, Alloy Housing, and Electronic Device" (Publication No . CN120358694A) . This patent introduces a magnesium alloy that combines aluminum (2 . 5%~4 . 5%), zinc (0 . 5%~1 . 0%), manganese (0 . 2%~0 . 8%), titanium (0 . 01%~1 . 0%), antimony (0 . 01%~0 . 5%), and small amounts of mixed rare earths (lanthanum and cerium). By using a low-aluminum Mg-Al-Zn alloy and adding these affordable rare earth (La/Ce) and refining elements, the new material significantly improves corrosion resistance while keeping production costs low . It is designed for use in electronic device housings and is well-suited for mass production.
. , Ltd . has recently filed a patent titled "Die-Cast Magnesium Alloy, Its Preparation Method, and Automotive Structural Parts" (Publication No . CN120174246A), according to the China National Intellectual Property Administration . The patent describes a magnesium alloy designed for die-casting that contains aluminum (4 . 2~7 . 0%), manganese (0 . 15~0 . 5%), rare earth elements (La+Ce 0 . 20~2 . 50%), yttrium (0 . 01~1 . 5%) (RE+Y≥0 . 5%), calcium (0 . 03~0 . 80%), and trace amounts of other elements (Fe+Ni+Cu﹤0 . 01%, Zn﹤0 . 20%, impurity﹤0 . 05%) . Notably, the alloy achieves excellent bending strength without the need for heat treatment, while maintaining good mechanical and casting properties . With a relatively low rare earth content, the alloy is especially suitable for vehicle body parts that need to withstand compressive forces, such as in crashes.Meanwhile, Huawei Technologies Co., Ltd . has also filed a patent titled "Magnesium Alloy, Alloy Housing, and Electronic Device" (Publication No . CN120358694A) . This patent introduces a magnesium alloy that combines aluminum (2 . 5%~4 . 5%), zinc (0 . 5%~1 . 0%), manganese (0 . 2%~0 . 8%), titanium (0 . 01%~1 . 0%), antimony (0 . 01%~0 . 5%), and small amounts of mixed rare earths (lanthanum and cerium). By using a low-aluminum Mg-Al-Zn alloy and adding these affordable rare earth (La/Ce) and refining elements, the new material significantly improves corrosion resistance while keeping production costs low . It is designed for use in electronic device housings and is well-suited for mass production.