Hitherto lead has been used mainly as cable sheath material.
However, new superior materials are demanded to get rid of the weak points of lead sheath as well as on acount of the shortage of lead, accordingly, study of aluminum has been conducted to meet this demand.
There are several kinds of methods in aluminum sheathing, but, the writer manufactured it by sinking method. It's special feature is, as compared with lead sheathed cable, that it ts light, hard and has durabity against vibration and creep.
However, on the other hand, it has inferior points in flexibility and corrosion etc, but as the result of various experiment, we have proved that they are harmless in practical use, and it has been answering the purpose of utility.
抄録全体を表示