【摘要】 阐述了我国客、货车辆焊接转向架的研制和２ＴＮ型焊接转向架的引进运用现状；分析了设计运用中存在的有关问题，并对完善焊接转向架研究及新型转向架的开发提出了一些建议更多还原

【Abstract】 The current situation in specifically developing our country′s welded bogies of passenger car and freight cars and the application of imported welded bogie of type 2 TN are relevant problems in design and use. They are analysed here with some suggestions to improver the research of welded bogie and to develop new kinds of bogies.更多还原