Production process of pipe elbow
Elbow production process is on the elbow machine, the steel tube to be bent on part of the set of induction heating coil, mechanically pivoted arm stuck pipe head, zhongtong into the intermediate frequency induction heating coil current heating tube, when the steel tube temperature to the plastic state, after the steel pipe end with mechanical thrust forward, bending and bending of making steel pipe section with coolant cooling rapidly, so heating while advancing edge bending side cooling, bending the elbow out constantly. |