针对高频焊管机组中 GCr15成型辊、定径辊常常出现的几种失效 ,在轧辊制造中采取了高温形变热处理 (锻造余热淬火 )新工艺 ,把锻压和热处理紧密结合在一起 ,利用锻后余热马上淬火接着高温回火 ,使轧辊获得了良好的强度和韧性 ,组织细化 ,表面硬度均匀。再淬火后轧辊内孔缩小 ,又继续延长了使用寿命 Aiming at the failure of GCr15 forming roller and sizing roller in high frequency welded pipe unit, a new technology of high temperature deformation heat treatment (forging afterheat quenching) is adopted in the roll manufacturing. The forging and heat treatment are closely combined, Immediately followed by quenching and tempering, the roll obtained good strength and toughness, refinement, uniform surface hardness. After re-quenching roller bore reduction, but also continue to extend the service life