Research development of composite green brazing materials of filler metal and flux

钎料钎剂复合型绿色钎料研究进展 Research development of composite green brazing materials of filler metal and flux 王博 WANG Bo 1 first-author 龙伟民 LONG Weimin 1 corresp longweimin@camsouth.com.cn 钟素娟 ZHONG Sujuan 1 薛松柏 XUE Songbai 1 关绍康 GUAN Shaokang 1 程亚芳 CHENG Yafang 1 中机智能装备创新研究院(宁波)有限公司  2. 郑州机械研究所有限公司新型钎焊材料与技术国家重点实验室  3. 南京航空航天大学材料科学与技术学院  4. 郑州大学河南省先进镁合金重点实验室  中机智能装备创新研究院(宁波)有限公司  2. 郑州机械研究所有限公司新型钎焊材料与技术国家重点实验室  3. 南京航空航天大学材料科学与技术学院  4. 郑州大学河南省先进镁合金重点实验室  China Innovation Academy of Intelligent Equipment Co.,Ltd. China Innovation Academy of Intelligent Equipment Co.,Ltd. 钎焊是制造业的关键基础技术之一,复合钎料是践行钎焊绿色化、自动化的重要手段,与传统钎料相比,复合钎料可实现钎剂定位—定温—定时—定量精准反应。综述了国内外钎料钎剂复合型钎料的分类和特点,分析了药芯钎料、药皮钎料、粉末合成钎料等的制备技术、成分设计和典型应用,指出了目前研究的不足,并对复合钎料未来的发展方向提出了建议:借助材料基因组技术开发高活性低排放的低银无镉钎料,持续创新复合钎料加工制备技术如搅拌摩擦加工、电磁致塑技术;加强质量监控、控形提性开发表面质量优良的连续型盘装、桶装药芯复合钎料以替代传统手工条状钎料,加速我国钎焊自动化进程。 Brazing is one of the key basic technologies in the manufacturing industry,and the wide application of composite brazing filler metals is an important method to realize green and automatic brazing. Comparing with the traditional filler metal,composite filler metal can achieve the precise flux reaction under the conditions of accurate positioning,constant temperature,timing and quantification. In this article,the classification and characteristics of brazing filler metals at home and abroad are reviewed,and the preparation technology,compo-sition design and typical applications of flux-cored brazing filler metals,flux-coated brazing filler metals,brazing filler metals prepared by powder are analyzed. The shortcomings of current research are pointed out,and suggestions for the future development of the composite filler metal are put forward. For example,with the aid of materials genome technology,developing low-Ag and Cd-free brazing filler metal with high activity and low emissions;continuously innovating the processing and preparation technology of composite brazing filler metals,such as friction stir processing and electromagnetic plastic technology; developing continuous plate-packed and barrel-packed flux-cored composite brazing filler metals with excellent surface quality to replace traditional manual strip brazing filler metals. 复合钎料 药芯钎料 药皮钎料 粉末合成钎料 composite brazing filler metal flux-cored brazing filler metal flux-coated brazing filler metal brazing filler metal prepared by powder TG425 2022-03-08 2 51