碱锰电池携磁原因分析及其消磁技术研究  

STUDY ON THE MAGNETIC MECHANISM AND DEGAUSSING TECHNIQUE IN ALKALINE BATTERY

作　　者：丁涛[1] 陈倩[2] 李俊德[1] 周蓓锋[1] 

机构地区：[1]卫星海洋环境动力学国家重点实验室,国家海洋局第二海洋研究所,浙江杭州310012 [2]华南师范大学物理与电信工程学院,广东广州510631

出　　处：《华南师范大学学报（自然科学版）》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)

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.

关 键 词：碱锰电池 磁性 磁场强度 消磁 

分 类 号：P716.21[天文地球—海洋科学] TG115.27[金属学及工艺—物理冶金]