【摘要】 中频逆变直流点焊机具有突出优点,是电阻点焊设备的一个重要发展方向。讨论了其变压器的结构、铁芯、绕组和冷却系统设计问题,对工作频率、工作电压、绕组匝数、铁芯截面积等要素进行了分析、选择和计算。所研制的170kVA,1kHz变压器与相同功率的单相工频点焊变压器相比,体积减少了70%,质量减轻了60%。更多还原

【Abstract】 The medium frequency spot welder is an important field of resistance welding machine because of its various advantages.The design of its transformer structure,iron core,windings and cooling systems were discussed.The operating frequency,voltage,turn ratios and the cross-section of the iron core were analyzed.A transformer of170kVA,1kHz ,was developed with reductions of70%on volume and60%on weight over the traditional transformer.更多还原