電線用アルミニウム地金に関する研究(第2報)
アルミニウム地金中の種々の配合金属が電導度及び抗張力に及ぼす影響に就て
1958 年 8 巻 1 号 p. 5-18
詳細
1958 年 8 巻 1 号 p. 5-18
Aluminium metal now in use for electric conductor contains Si and Fe and small amount of Ca, Mn, Ti, V, Cu, Mg, etc., and it is considered that, as reported previously, this kind of metal now shows under the present cable manufacturing conditions its possibly highest valued both in conductivity and tensile strength. Therefore, it is presumed that some modifying elements have to be added to obtain still better metal for conductor.
Thus, the reporters made a study on the effects of particularly added Th, Cr, B, Ni, Zr, Zn as well as Si, Fe, Cu, Ti, V, Ca, Mg, Mn contained in ordinary aluminium metal on the ability of conductor, by means of Random Coupling of two Orthogonal Design.
Findings are as follows:
1. Si, Fe, Cu, Cr, Mn, Mg, Ti and V lower the conductivity and B functions so as to decrease the lowering of conductivity at least by Ti and V.
2. Th, B, V and Zn lower the tensile strength, and Si, Fe, Cu, Mg, Zr, Ca and Ni higher it. It was concluded that in such a small amount as used in this experiment Ni, Ca and Zr higher the tensile strength, without affecting the electric conductivity.
