一、前言随着我国工业的科学技术的迅速发展,对电工仪表、电子仪器等工业提出了高的要求,朝着高稳定、微型化方向发展,微细锰铜丝对电工仪表、电子仪器等工业部门的某些产品已经不能满足其要求,因而探求一种阻值更高的精密微细丝材料则成为高阻微型化的关键课题。在应用单位的要求下,遵照毛主席“大办协同,搞好这项工作”的教导,在中国电工厂、上海电缆研究所的共同努力下开始了这项工作,研制过程中还得到一些使用单位如上海电工仪表研究所、上海电表厂的支持和配合。其电性能的要求如下: I. Introduction With the rapid development of China’s industrial science and technology, high requirements have been put forward on the industries of electric instruments, electronic instruments and so on, and the direction toward high stability and miniaturization has been developed. The micro-manganese copper wires are widely used in industries such as electric instruments, electronic instruments, etc. Some products in the department can not meet the requirements. Therefore, it is a key issue to miniaturize the high resistance miniature silk screen to seek a higher resistance micro-wire material. At the request of the application unit, following the teaching of Chairman Mao “doing great work in coordination and doing a good job ”, this work was started with the joint efforts of China Electric Works and Shanghai Electric Cable Research Institute, and was also obtained during the development Some use of units such as Shanghai Institute of Electrical Instrumentation, Shanghai meter factory support and cooperation. The requirements of its electrical properties are as follows: