金属加工（热加工）Issue(6)：28-33,6.
抽蓄球阀密封环导向面铝青铜堆焊工艺研究
Research on aluminum bronze surfacing welding process for sealing ring guide surface of pumped storage ball valve
摘要
Abstract
By analyzing the purity of welding protection gas for aluminum bronze overlay welding parts,testing the bonding force between the overlay layer and the substrate,conducting macroscopic and microscopic metallographic analysis of the cross-section of the overlay layer,observing the SEM morphology of the fusion line of the cross-section of the overlay layer,and analyzing the EDS composition,the main causes of the quality problem in aluminum bronze overlay welding of the sealing ring guide surface of the suction ball valve were determined,and improvement process measures were formulated and verified.By improving the purity of welding protection gas,the problem of point defects exposed during surface inspection of aluminum bronze overlay after processing has been greatly improved.By developing a PJ-TIG plasma flow high-efficiency tungsten inert gas arc welding special machine for the application of helium argon mixed protective gas,the aluminum bronze overlay welding layer with transition layer welding and pulse MIG robot cover welding process has been processed,which basically eliminates the separation of the overlay layer and the substrate,i.e."delamination".The adoption of the above measures has significantly improved the quality of aluminum bronze overlay welding on the sealing ring guide surface of ball valves.In addition,the welding of copper and copper alloys is harmful to the human body.Through the application of pulse MIG welding robot workstations and PJ-TIG plasma flow high-efficiency tungsten inert gas arc welding special machines,aluminum bronze automatic surfacing can be achieved,replacing manual operations,improving the working conditions of welders,and reducing the risk of occupational diseases.关键词
球阀/铝青铜堆焊层/PJ-TIG等离子流高效钨极氩弧焊/脉冲MIG/保护气体比例Key words
ball valve/aluminum bronze overlay welding layer/PJ-TIG plasma flow high-efficiency tungsten inert gas arc welding/pulse MIG/protective gas ratio引用本文复制引用
甘洪丰,杨年浩,田井成,张奎良,乔宏来,段伟赞..抽蓄球阀密封环导向面铝青铜堆焊工艺研究[J].金属加工（热加工）,2025,(6):28-33,6.基金项目
黑龙江省重点研发计划项目(No.2022ZX04A01) （No.2022ZX04A01）
黑龙江省自然科学基金资助项目(No.YQ2021E007). （No.YQ2021E007）
