Patent ID: 8395073

Claim:
A continuous rolling method for steel billets comprising: a) flash welding a trailing end of a preceding steel billet and a leading end of a succeeding steel billet to join the preceding steel billet and the succeeding steel billet together while the preceding steel billet and succeeding steel billet are traveling; b) forming a burr at a resulting welded portion during flash welding and forming a defect when the preceding steel billet and the succeeding steel billet are misaligned during flash welding; c) deburring to remove the burrs from the resulting welded portion, wherein the deburring forms a fin at a corner of the cross section of the resulting welded portion; d) trimming 1) the fin from the corner of a cross section of the resulting welded portion deburred in step b) and 2) any defects caused by misalignment of the preceding steel billet and the succeeding steel billet, wherein the trimming is to a depth of 5 to 10 mm and a length of between 100 and 200 mm along a longitudinal direction of the preceding steel billet and the succeeding steel billet; and e) rolling the preceding steel billet and the succeeding steel billet joined in step a).