王世光,李树君,杨炳南,李子明,杜新武,金 鑫.蜂窝板式换热器焊接工艺优化与性能分析[J].农业机械学报,2015,46(7):359-364.
Wang Shiguang,Li Shujun,Yang Bingnan,Li Ziming,Du Xinwu,Jin Xin.Welding Technology Optimization and Capability Analysis of Honeycomb Panel Heat Exchanger[J].Transactions of the Chinese Society for Agricultural Machinery,2015,46(7):359-364.
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蜂窝板式换热器焊接工艺优化与性能分析   [下载全文]
Welding Technology Optimization and Capability Analysis of Honeycomb Panel Heat Exchanger   [Download Pdf][in English]
投稿时间:2015-05-10  
DOI:10.6041/j.issn.1000-1298.2015.07.051
中文关键词:  蜂窝换热板 焊接工艺 优化 正交试验
基金项目:“十二五”国家科技支撑计划资助项目(2012BAD53G01)
作者单位
王世光 中国农业机械化科学研究院 
李树君 中国农业机械化科学研究院 
杨炳南 中国农业机械化科学研究院 
李子明 中国农业机械化科学研究院 
杜新武 河南科技大学 
金 鑫 河南科技大学 
中文摘要:为改善蜂窝板式换热器机械强度,提高蜂窝板冲压成型极限,对板片焊接极限粘结力和冲压破裂极限强度的主要影响因素:焊点形状、焊接功率、焊接速度、焊接点距和焊点分布形式进行了优化,利用数控激光焊接机、拉力试验台和水压泵等试验设备,进行了单因素和多因素焊接薄板机械强度测试试验。单因素试验结果表明:相同工况下,螺旋焊点的薄板极限机械强度最大,表现为随焊接功率、焊接速度的增大,焊点极限机械强度先增加后减小;等边三角形焊点分布薄板冲压破裂的极限压强较大,随焊点距离增大迅速减小。正交试验表明:在螺旋焊点和等边三角形焊点分布下,焊接点距为50mm、焊接功率为2.2kW、焊接速度为2.5m/min时,薄板冲压成型破裂极限最大,为8.6MPa。较现有焊接工艺的冲压成型极限提升了7.5%。
Wang Shiguang  Li Shujun  Yang Bingnan  Li Ziming  Du Xinwu  Jin Xin
Chinese Academy of Agricultural Mechanization Sciences,Chinese Academy of Agricultural Mechanization Sciences,Chinese Academy of Agricultural Mechanization Sciences,Chinese Academy of Agricultural Mechanization Sciences,Henan University of Science and Technology and Henan University of Science and Technology
Key Words:Honeycomb panel heat exchanger Welding technology Optimization Orthogonal experiment
Abstract:To improve the mechanical strength of the honeycomb panel heat exchanger and ameliorate the limit of swell crush forming, the main factors which affecting the welding limit cohesion and limit strength of stamping rupture were optimized. These factors included the welding shape, welding power, welding speed, welding distance, and welding arrangement. The single factor experiment and multi factors experiment for welding sheet mechanical strength were carried out with digital controlled laser welder, pulling test rig, hydraulic pressure pump and other apparatuses. The results of the single factor experiment showed that the sheet limit mechanical strength of spiral welding spot was the largest. With the increase of welding power and welding speed, the limit mechanical strength of spiral welding spot first increased then decreased. The limit strength of stamping rupture of equilateral triangle arranged welding spot was relatively good. With the increase of welding distance, the strength decreased rapidly. The result of orthogonal experiment showed that: with the spiral welding spot and equilateral triangle arranged welding spot, the maximum limit strength of stamping rupture reached 8.6MPa which was improved by 7.5% compared with current welding technology when the welding distance was 50mm, welding power was 2.2kW, and welding speed was 2.5m/min.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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