鑒于中国目前现有的锅爐生产工艺,特别是蒸汽机车锅爐与车辆制造工艺,暂时还落后于苏联与外国的先进工厂,所以需要说明焊接对锅爐生产互换性的影响问题。这种落后状态太大阻碍了锅爐制品劳动生产率的增长速度和生产质量。说明这个问题的现实性,还在于使改建和新建的机 In view of the current boiler manufacturing technology in China, especially the steam locomotive boiler and vehicle manufacturing process, it is still lagging behind the advanced factories in the Soviet Union and foreign countries. Therefore, it is necessary to explain the impact of welding on the interchangeability of boiler production. Too much of this backwardness hinders the growth rate of labor productivity and the quality of production of boiler products. Explain the reality of this issue is still to make the reconstruction and the new machine