Steel Strip Shear and Butt Welder for ERW Entry Lines

A steel strip shear and butt welder prepares and joins successive coil ends at the entry to an ERW tube mill. It trims the end of the outgoing strip and the leading end of the new coil, then holds the prepared ends for alignment and welding. Joining coils at the entry section The machine works between the uncoiler and the strip accumulator. During joining, the entry section stops while the downstream mill draws on stored strip. Maintaining supply depends on having sufficient usable reserve for the actual joining time and line speed. This operation joins one coil to the next. It is separate from the high-frequency welding process that forms the longitudinal seam of the tube. Define each part of the configuration Shearing, clamping, centring, joint positioning and welding should each be specified. The level of operator involvement may differ between these operations. Identify which steps require manual adjustment and which are powered or automatically controlled in the proposed configur…