DEVICE AND METHOD FOR SCARFING A SECTION SHAPE STEEL MATERIAL CAPABLE OF PREVENTING OVER-ABLATION DUE TO EXCESSIVE OXYGEN INFLOW AT THE BOUNDARY AREA OF SCARFING UNITS ARRANGED IN A PLURALITY OF ROWS IN A SCARFING PROCESS

摘要

PURPOSE: Device and method for scarfing a section shape steel material are provided to enhance surface quality of a product by preventing over-ablation of the surface of a section shape steel material by differently supplying the pressure of oxygen and gas to parts of scarfing units.;CONSTITUTION: A device for scarfing a section shape steel material comprises scarfing units(100) arranged in a plurality of rows and first and second oxygen supply pipes(110,210). The scarfing units spray gas and oxygen to the surface of the section shape steel material for scarging. The scarfing units are divided into a central part and both boundary parts. The first and second oxygen supply pipes supply different amount of oxygen to the central part and both boundary parts. The first and second oxygen supply pipes supply gas to the central part and both boundary parts.;COPYRIGHT KIPO 2012