properties of lead-silver and lead-silver-lanthanum alloys as positive grid of lead-acid battery;
铅银和铅银镧合金作为正极板栅的性质研究
Xiaonangou-Longwangmiao Ag-Pb polymetallic study area in the south margin of North China Craton is composed of silicified altered rock and vein ore types, which are tectonic altered rock type.
根据这些依据,预测到2个找矿靶区,即桐树沟-金沟-骨尸沟银铅多金属找矿靶区、老庙沟铜银铅多金属找矿靶区。
Lead-rich slags with different levels of PbO content have been prepared in laboratory.
选用实验室制备的不同PbO含量的富铅渣与工业化生产的铅烧结块在竖管炉中用石墨坩埚进行还原反应对比试验。
Lead-rich slags containing different level of PbO concentrations have been prepared in laboratory.
选用实验室制备的不同PbO含量的富铅渣,确定富铅渣的孔隙率和密度、软化温度、微观结构和相成分。
Lead-rich slags containing different CaO/SiO2 ratio have been prepared in laboratory.
制备不同CaO/SiO2比率的富铅渣,在实验室竖管炉中用石墨坩埚进行还原反应对比试验研究。