摘要:
A process for ion nitriding of aluminum or an aluminum alloy and an apparatus therefor, wherein aluminum or an aluminum alloy as an article to be treated is disposed on a substrate holder provided in a sealed container. A predetermined metal having an intensive affinity for oxygen is also disposed in the vicinity of the article to be treated, and a glow discharge is operated between an electrode provided in the sealed container as an anode and the substrate holder as a cathode. The electrode may be directly provided at the sealed container itself or it may be independently provided therein. According to the process and apparatus of the present invention, it is possible to form on the surface of aluminum or an aluminum alloy an aluminum nitride layer having an intensive adhesion to a substrate thereof, high hardness and excellent wear resistance.
摘要:
A continuously variable transmission for vehicular use including a torque converter, a CVT (continuously variable transmission mechanism), and a rotation transmission mechanism of a variable ratio having at least reverse and forward low speed ranges of large reduction ratios and a forward high speed range of small reduction ratio and which is equipped with a planetary gear mechanism. A torque transmission passage from the output shaft of the torque converter to the output shaft of the vehicular continuously variable transmission is divided into two torque transmission passages through the CVT and to the rotation transmission mechanism of variable ratio so that, in at least one of the speed positions of large reduction ratios, the torque transmission passage through the CVT is disconnected from the output shaft of the vehicular continuously variable transmission so as to not apply a large torque to the CVT in that case, whereas, in the speed position of small reduction ratio, the torque through the CVT and the torque through the rotation transmission mechanism of variable ratio are applied to the output shaft of the vehicular continuously variable transmission. Accordingly, the torque borne by the CVT is reduced so that it does not exceed the engine torque.