转炉流程生产高品质轴承钢的实践  

Practice for Production of High-Quality Bearing Steel With BOF Steelmaking Process

作　　者：龚伟[1] 战东平[1] 姜周华[1] 宋满堂 钟晓丹 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110819 [2]本钢集团有限公司特殊钢研发所,辽宁本溪117000

出　　处：《中国冶金》2013年第4期35-39,共5页China Metallurgy

摘　　要：与电炉流程相比,转炉流程生产轴承钢具有铁水洁净度高、产品质量好、生产效率高、生产成本低等主要优点。本钢炼钢厂采用转炉-精炼(LF+RH)-矩形坯连铸生产GCr15,其化学成分全部达到本钢制定标准要求,其中有害元素w([Ti])=25×10-6、w([Ca])=2×10-6、w([O])=8×10-6、w([N])=38×10-6、w([H])=0.8×10-6,均优于GB/T 18254-2002标准要求,满足瑞典SKF标准(SKF D33)的要求。Compared with EAF process, BOF process for producing bearing steel has many advantages such as higher steel cleanliness, better product quality, higher production efficiency and lower cost. The GCr15 steel grade had been produced in Bengang steelmaking works by adopting BOF--secondary metallurgy （LF＋RH）--bloom caster process. All the chemical elements of GCr15 steel reached the standard demand that was established by Bengang. Its harmful elements such as w（[Ti]） = 25 ×10^-6,w（[Ca]）=2×10^-6,w（[O]）=8X10.6,w（[N]）=38×10^-6, w（[H]） =0.8× 10^-6, were all precede the demand of GB/T 18254--2002 standard, and also met the demand of Sweden SKF standard （SKF D33）.

关 键 词：转炉流程 矩形坯 轴承钢 杂质元素 

分 类 号：TF713[冶金工程—钢铁冶金]