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材料导报  2019, Vol. 33 Issue (Z2): 202-205    
  无机非金属及其复合材料 |
大尺寸件氧化铝陶瓷与可伐合金的钎焊封接工艺研究
刘诚, 何兴会, 全锋, 谢昕芸, 孙庆斌, 廖静, 曲曙光
中国工程物理研究院材料研究所,江油 621908
Technical Research on the Brazing of Alumina Ceramic and Kovar Alloy for BigSize Workpiece
LIU Cheng, HE Xinghui, QUAN Feng, XIE Xinyun, SUN Qingbin, LIAO Jing, QU Shuguang
Material Institute,China Academy of Engineering Physics,Jiangyou 621908
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摘要 为解决某装置上φ400 mm规格氧化铝和4J29可伐合金的高密封性封接和严苛的冷热冲击性能要求,对活性钎焊法和镀膜钎焊法进行工艺效果对比,以改进的真空淬火炉WZC-50作为钎焊设备。试验发现:采用Ti-Ag-Cu钎料的活性钎焊法,焊件漏率最高可达5×10-8~5×10-10Pa·m3/s,经过补焊后漏率提高1个数量级,但不能承受冷、热冲击;采用Ag-Cu-Ti钎料在陶瓷表面预金属化,然后用Ag80Cu带材二次钎焊的镀膜钎焊法,最高漏率可达5×10-13 Pa·m3/s,焊件可以经受带压不高于0.09 MPa,时长27 h的-55 ℃到180 ℃的冷、热以及热-冷-热循环冲击。对比之下,镀膜钎焊可以满足大尺寸氧化铝陶瓷和可伐合金的高密封性封接要求,焊缝强度高,可以承受更大范围的冷、热冲击。
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刘诚
何兴会
全锋
谢昕芸
孙庆斌
廖静
曲曙光
关键词:  Al2O3陶瓷  可伐合金  活性钎焊法  镀膜钎焊法  密封性    
Abstract: In order to manufacture a high quality composite equipment of Al2O3 ceramics and 4J29 with φ400 mm in dimension, we should keep the joint with property of good sealability even when experiencing cold impact, hot impact and hot-cold-hot cycle impact test. Then the active metal brazing method and molybdenum-manganese (Mo-Mn) method are selected for comparison. The experiment was executed on the vacuum quenc-hing device of WZC-50 by reconstruction. Tests indicate that workpiece welded by active metal brazing method with Ag-Cu-Ti filler alloys performs the best air leakage rate of 5×10-8—5×10-10 Pa·m3/s,and poor ability in experiencing hot impact and cold impact test. Nevertheless, workpiece welded by Mo-Mn method are executed in such sequence: ceramics is prealloyed by Ag-Cu-Ti filler alloys firstly and then jointed with Kovar by Ag-Cu filler alloys. The best air leakage rate of this workpiece is 5×10-13 Pa·m3/s. It also has better performance in hot impact test, cold impact test and hot-cold-hot cycle impact test between -55 ℃ and 180 ℃ with equipment pressure≤0.09 MPa.In comparison, Workpiece of ceramic Al2O3 and Kovar alloy brazed by Mo-Mn method shows better sealing property, higher tensile strength and wider temperature range of hot and cold impact test result.
Key words:  ceramic Al2O3    Kovar alloy    active brazing method    molybdenum-manganese method    sealability
               出版日期:  2019-11-25      发布日期:  2019-11-25
ZTFLH:  TG454  
通讯作者:  240534955@qq.com   
作者简介:  刘诚,技师,在热处理岗位工作将近40年,涉及材料广泛,热处理经验丰富。
何兴会,2010年毕业于西安交通大学,随后进入机加和材料成形工作岗位担任工程师,已发表论文3篇。目前是中国工程物理研究院材料研究所的博士在读生,主要从事压力加工。
引用本文:    
刘诚, 何兴会, 全锋, 谢昕芸, 孙庆斌, 廖静, 曲曙光. 大尺寸件氧化铝陶瓷与可伐合金的钎焊封接工艺研究[J]. 材料导报, 2019, 33(Z2): 202-205.
LIU Cheng, HE Xinghui, QUAN Feng, XIE Xinyun, SUN Qingbin, LIAO Jing, QU Shuguang. Technical Research on the Brazing of Alumina Ceramic and Kovar Alloy for BigSize Workpiece. Materials Reports, 2019, 33(Z2): 202-205.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2019/V33/IZ2/202
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