Induction Coil Positioning and Weld Seam Tracking System of Medium Frequency Annealing Device

The medium frequency annealing device plays a rather important role in the weld pipe operation line. The efficiency of weld seam heat treatment as produced by the induction coil of the said annealing device highly depends on not only the design of the medium frequency power supply,but also the effectively positioning of the coil in the weld seam area. Described here is an induction coil positioning and weld seam tracking system provided to the medium frequency annealing device as incorporated into the HFW pipe production line of Baoshan Iron and Steel Co., Ltd., covering such aspects as the operation result, equipment composition, working principle and functioning tips as well as how to use the system to track pipe weld seam and set position of the coil according to pipe size changes. The actual operation result shows that the said system is very effective, and worth spreading up to a certain extent.