鉛蓄電池用 格子合金인 납-안티몬合金의 時效析出改善에 關한 硏究 = A Study on the Improvement of Ageing Precipitation of Lead-Antimony Alloy as Grid Alloy for Lead-Acid Battery

다국어 초록 (Multilingual Abstract)

In this paper, electrical resistance and micro-hardness measurements versus ageing time in order to improve ageing precipitation of battery grid alloy were performed for studying the influences of antimony content, ageing temperature, low-temperature treatment, a plastic deformation immediately after quenching and addittons of small arsenic on ageing precipitation of Pb-Sb alloys.
The results obtained in this study are as follows :
1. The main mechanism of precipitation seems to be one of nucleation and growth of precipitation which give rise to the plate-shaped precipitates of pure antimony.
2. The ageing precipitation takes place faster when antimony content is higher and ageing temperature is upper.
3. The influences of a plastic deformation and a low-temperature treatment just after quenching lead to a greater rate of ageing kinetics.
4. With additions of small arsenic, the ageing precipitation of Pb-Sb alloy is greatly accelerated and suppressed the behaviour of over-ageing.
5. It is expected to contain 0.01~0.5%As of Pb-2.5~3.5%Sb alloy and to artificially 5hr at 120℃ to improve the efficiency and endurance-life of battery grid alloy.