哈尔滨焊接研究所和哈尔滨第二工具厂,上海锯条厂等单位,经过三年多的密切协作,研制成功丁双金属机用锯条电子束焊接工艺。一九八○年十二月二十一日至二十三日,由一机部机械院组织有关生产、科研、高等院校等十四个单位,进行了技术鉴定。 Harbin Institute of Welding and Harbin Second Tool Factory, Shanghai Saw Blade Factory and other units, after more than three years of close cooperation, the successful development of Ding bi-metal machine saw blade electron beam welding process. From December 21 to August 23, 1980, a mechanic institute of Machinery and Equipment organized fourteen units of manufacturing, scientific research and higher education institutions to conduct technical appraisals.