Rotary Car Air Conditioner Made with P/M Al-Si Wrought Alloys

We have developed new P/M Al-Si wrought alloys having high strength and high wear resistance for use in the rotors and vanes of rotary car air conditioners. In addition, combined with the development of near-net-shape extrusion technologies, through a joint project with Diesel Kiki Co.,Ltd., we have succeeded in the world's first mass production of rotors made of P/M aluminum wrought alloy.

In this paper, the properties and production technology of vanes and rotors made with new P/M Al-Si wrought alloys are presented.