According to practice and analysis,it puts forward the plans and ideas for several key problems in stage research and solutions of digital midfrequency if inverter resistance welders.

• 分析了数字化逆变电阻焊机的优越性以及应用前景,介绍了数字化逆变电阻焊机国内外研究的进展,根据实践和分析提出了分阶段研究解决数字化中频逆变电阻焊机的几个关键难题的规划和设想。