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前言 1975年10月,日本日立制作所有限公司派该公司车辆技术部长等叁名技术人员来我国进行有关机车车辆用牵引电机技术座谈。从10月14日至25日与我国有关专业人员座谈十二次。在座谈中,日方着重介绍了该公司牵引电机产品的特点,新型绝缘材料的应用,提高牵引电机可靠性和减少维护量的做法、措施;同时,还一般性地介绍了该公司机车车辆及其主要电气部件的特点和发展动向。
Foreword In October 1975, Japan’s Hitachi Ltd. sent the company’s vehicle technology minister and other three technicians to our country for locomotive vehicle traction motor technology forum. From October 14 to 25, we conducted 12 informal discussions with relevant professionals in our country. During the discussion, the Japanese side mainly introduced the characteristics of the company’s traction motor products, the application of new insulation materials, the practices and measures to improve the reliability of traction motors and reduce the maintenance volume, and also introduced the company’s rolling stock and The main electrical components of the characteristics and development trends.