カサタニ Company Profile

Magnesium, difficult-to-process materials such as magnesium-lithium, mass production technology.

Magnesium is the lightest among practical metals and possesses excellent properties such as specific rigidity, making it strong and resilient. Therefore, its application in mobile devices and hybrid vehicles is expected in the future. Regarding the processing of Mg alloys, die casting and thixomolding are the main methods, but there have been challenges with yield rates and post-processing such as filling. To address this, our company has developed a press processing method using rolled materials and has put it into practical use. By utilizing the good surface condition of rolled materials, we have achieved improvements in yield rates and eliminated the need for post-processing compared to current methods. Furthermore, we have developed our unique surface treatment technology (Magbright treatment), successfully maintaining corrosion resistance suitable for practical use. The Magbright treatment can be performed without compromising the inherent metallic luster of Mg alloys, allowing us to supply painted products with an unprecedented metallic sheen. We can also accommodate Mg alloys other than AZ31 (such as AZ61, AZ91, AM60, etc.), and we have successfully achieved mass production processing of Mg-Li alloy, the lightest Mg alloy in the world, significantly contributing to the lightweighting of mobile devices. The above achievements have been recognized, and we were able to receive the Special Award at the 5th Monozukuri Grand Prize.