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    • 1. 发明申请
    • THERMO-MECHANICAL TREATED LEAD ALLOYS
    • 热机械处理铅合金
    • WO03046243A8
    • 2003-09-04
    • PCT/US0144061
    • 2001-11-26
    • INTEGRAN TECHNOLOGIES INC
    • PALUMBO GINOAUST KARL TLIMOGES DAVID LGONZALEZ FRANCISCOTOMANTSCHGER KLAUSLIN PETER K
    • C22C11/00C22F1/12H01M4/68H01M4/82
    • C22F1/12C22C11/00H01M4/685H01M4/82
    • Recrystallized lead and lead alloy positive current collectors and connectors such as straps and lugs for use e.g. in lead acid batteries and electrowinning anodes, having an increased percentage of special grain boundaries in at least part of the microstructure, which have been provided by a process comprising of (i) cold or hot rolling or cold or hot extrusion or (ii) steps of deforming the lead or lead alloy, and subsequently annealing the lead or lead alloy. Either a single cycle of working and annealing can be provided, or a plurality of such cycles can be provided. The amount of deformation, the recrystallization time and temperature, and the number of repetitions of such steps are selected to ensure that a substantial increase in the population of special grain boundaries is provided in the microstructure, to improve resistance to creep, intergranular corrosion and intergranular cracking of the current collectors and connectors during battery service, and result in extended battery life and the opportunity to reduce the size and weight of the battery.
    • 重结晶的铅和铅合金正极集电器和连接器,例如带和凸耳,用于例如。 在铅酸蓄电池和电解冶金阳极中,在至少部分微观结构中具有增加的特殊晶界百分比,其通过包括(i)冷或热轧或冷或热挤压的方法提供,或(ii)步骤 使铅或铅合金变形,然后对铅或铅合金进行退火。 可以提供单个循环的加工和退火,或者可以提供多个这样的循环。 选择变形量,再结晶时间和温度以及这些步骤的重复次数以确保在微结构中提供特殊晶界的群体的显着增加,以改善耐蠕变,晶间腐蚀和晶间的抗性 在电池维修期间电流收集器和连接器的开裂,并延长了电池寿命,并有机会减小电池的尺寸和重量。