GZH-70 Steel Rail Post Weld Heat Treatment Complete Equipment
This complete equipment adopts dual medium frequency electromagnetic induction which surrounds the steel rail with a circular induction coil and heats each welding joint in turn with inductive current generated on the steel rail. While on the railway line, long rails has been welded and jointed together and fixed on the sleeper. Coil can not be put to surround the rail.In this case,normalizing process using acetylene will be adopted to heat steel rail welding joint with flame. However, automatic control and temperature detection are difficult under this circumstance, so continuity of treatment quality can not be guaranteed.