摘要
从电池组成结构和生产工艺特点方面发现了电池携磁的2个主要原因是:电池钢壳在冷轧冲压过程引发的金属相变和电池流水吸附送料装配过程中的外界磁化.该文对碱锰电池的消磁方法进行研究,摸索出一套适用于碱锰电池的消磁方法,即先饱和充磁,再50 Hz定频消磁.经过3次消磁后,100%的电池样品达到了剩磁Br<0.2 mT的目标.
Magnetism that the alkaline battery carries disturbs the majority of precision instruments and then affects the data acquisition.This article,based on the battery composition structure and the characteristic of manufacturing technique,discovered the two major causes in battery magnetizing that the metallographic phase transformation happened in cold rolling and punching on battery metal shell and the magnetization from magnetic field in the assembly line.Through studying on degaussing methods and massive experiments,a method named ＂saturated magnetizing first and then 50 Hz degaussing＂ was developed.After three times of degaussing,100% of battery samples have been achieved the goal that residual magnetism Br0.2 mT.
出处
《华南师范大学学报（自然科学版）》
CAS
北大核心
2011年第3期74-77,共4页
Journal of South China Normal University(Natural Science Edition)
基金
国家海洋局青年海洋科学基金项目(2009422)
关键词
碱锰电池
磁性
磁场强度
消磁
alkaline battery
magnetism
magnetic intensity
degaussing
