GCr15轴承钢轧制“穿水”冷却工艺的研究  

Technology Research of Bearing Steel GCr15 Produced with Water Cooling System

作　　者：李锡峰[1] 范连明[1] 

机构地区：[1]本钢技术中心,辽宁本溪117000

出　　处：《本钢技术》2012年第3期21-24,共4页Bengang Technology

摘　　要：本钢采用"矩形坯(350×470mm)→800连轧机组→PCS冷却系统"进行了φ45mm GCr15轴承钢"穿水"冷却工艺试验。结果表明:通过实施"穿水"冷却工艺,钢材的显微晶粒度得到明显细化,钢中网状碳化物析出量随钢材离最终"穿水"系统时的温度降低而减少。通过合理调整"穿水"时的给水量、轧制速度等工艺参数,可有效地控制网状碳化物析出。By CC of rectangular section（350mm×470mm）→800rnm mill →PCS cooling system route, the bearing steel GCrl5 bar of Ф45mm was produced with water cooling in BX STEEL. The result indicated that the grain size of the steel bar with water cooling system is decreased. The mesh carbide exhalation in the steel is up to the ultimate water cooling temperature. The temperature is lower, the mesh carbide exhalation is less. By adjusting the wear of water and the speed of rolling and so on, the mesh carbide exhalation can be controlled effectively.

关 键 词：GCR15轴承钢 连轧 PCS冷却系统 网状碳化物 

分 类 号：TG335[金属学及工艺—金属压力加工]