在安装梁与柱焊接装置的炼式翻转机时,需要数根长约7公尺,直径00公厘的传动轴。但厂内现有材料,长度仅900公厘到1700公厘。因此,只能把数根短轴用焊接的方法接成长轴。焊前,轴的加工如图所示。为了防止焊后变形,在对接处沿中心线焊上四个拉紧板。轴的材料为45号钢,因此采用焊前预热及焊接时连续加热的方法,使对接处及邻近段的温度保持在200～ In the installation of beam and column welding Lianzhuang overturning machine, you need a few root length of about 7 meters, a diameter of 00 mm shaft. However, the existing materials factory, the length of only 900 mm to 1700 mm. Therefore, only a few short-axis welding method connected to the long axis. Before welding, the shaft is machined as shown. In order to prevent post-weld deformation, weld the four tension plates along the centerline at the butt joint. Shaft material is 45 steel, so the use of preheating and welding before welding continuous heating method, so that the butt and the adjacent section of the temperature maintained at 200 ~