介绍了株洲车辆厂研制的２Ｄ轴焊接转向架的结构及主要技术参数，并简单介绍了试验和运用情况，同时还对焊接转向架的工艺性及经济合理性作了介绍。 The structure and the main technical parameters of the 2D shaft welded bogie developed by Zhuzhou Vehicle Factory are introduced. The test and application are briefly introduced. At the same time, the technological and economic rationality of the welded bogie is also introduced.