Study and Practice on Mechanical Stripping of ER70S-6 Steel for Welding
In order to meet the requirements of welding wire manufacturers for mechanical stripping of wire rod scale,the composition,characteristics and structure of scale on billet and wire rod surface during steel rolling were analyzed.By adopting process optimization measures such as increasing the heating section temperature of heating furnace to 1 030 ℃,reducing soaking temperature to 1 140 ℃,increasing descaling pressure to 30 MPa,reducing spinning temperature,air-cooled roller speed and temperature of entering and leaving the insulation cover,improving the mechanical peeling ability of iron oxide scale,the problems of incomplete removal of iron oxide scale on the surface of wire rods and intermediate wires are solved,as well as poor appearance quality of welding wires after copper plating,ensuring the removal of iron oxide scale and improving the quality of finished welding wires.
iron oxide scalemechanical peelabilityheating temperaturecooling processprocess optimization
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