连轧后水冷工艺对GCr15轴承钢Φ60 mm棒材网状碳化物的影响  

Effect of Water Cooling Process after Continuous Rolling on Carbide Network ofΦ60 mm Rod of GCr15 Bearing Steel

作　　者：夏伟栋[1] 李铮[1] 郑雨旸[1] 葛华[1] 

机构地区：[1]宝钢股份特殊钢分公司,上海200940

出　　处：《特殊钢》2008年第2期63-64,共2页Special Steel

摘　　要：通过调节三组水箱高压喷嘴冷却水的强度（轧制速度1．48m／s，喷嘴内径80mm，精轧前1^#水箱水压≤0．3MPa，精轧后2^#水箱水压≥1．0MPa，3B水箱水压≥1．0NPa），控制Φ60mm GCr15轴承钢终轧温度950℃，喷水后返红温度为680℃，使成品材网状为1．5～2．0级，稳定达到标准要求。With adjusting the rate of cooling water of high pressure spray jet at 3 water tanks （ rolling speed 1.48 m/s, inside diameter of spray jet 80 mm, water pressure of Nol water tank before finishing rolling ≤0. 3 MPa, No2 tank after finishing rolling 31.0 MPa and 3B tank ≥ 1.0 MPa） to control finishing rolling temperature 950℃ for Φ60 mm GCrl5 bearing steel products and self tempering temperature 680℃ after water spray, the carbide network rating of products was 1.5～2. 0 to meet the requirement of standard.

关 键 词：GCR15轴承钢 控制冷却 网状碳化物 

分 类 号：TG335.13[金属学及工艺—金属压力加工]