ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2008, Vol. 29 ›› Issue (3): 55-56.

• 工艺技术 • 上一篇    下一篇

高品质大规格GCr18Mo轴承钢的试制

汪 质 刚,  肖 爱 平,  潘 明 旭 , 安 钢 , 李 秋 志   

  1. 大冶特殊钢股份有限公司,黄石435001
  • 收稿日期:2007-12-07 出版日期:2008-06-01 发布日期:2022-12-22
  • 作者简介:汪质刚(1973-),男,工程师,1996年北京科技大学毕业,从事轴承钢工艺、产品开发和材料研究。

Pilot Production of High Quality Heavy Round Sections of GCr18Mo Bearing Steel

Wang Zhigang, Xiao Aiping, Pan Mingxu, An Gang , Li Qiuzhi   

  1. Daye Special Steel Corp Ltd,  Huangshi 435001
  • Received:2007-12-07 Published:2008-06-01 Online:2022-12-22

摘要: 大冶特钢通过铁水+废钢-60 t电弧炉-LF-RH-5 t锭模铸-热轧/热锻工艺,成功生产出φ300~350 mm高品质大规格GCr18Mo高碳铬轴承钢。结果表明,通过30%~60%铁水热装比,控制废钢和合金料中的有害残余元素,LF精炼和RH真空处理,软吹Ar,Ar气保护浇铸等工艺措施,使高洁净度大规格GCr18Mo轴承钢中As 0.010%~0.012%、(As+Sn+Sb)0.022%~0.025%、Pb 0.0007%~0.0011%、Ti(17~19)×10-6、Ca 3×10-6、[O](6.5~6.7)×10-6。A类夹杂0.5~1.5级,B类0~1.0级,C类0级,D类0.5~1.0级。

Abstract: The φ300~350 mm high quality heavy round sections of GCr18Mo high Carbon Chromium bearing steels have been succsssfilly produced by hot metal +scap-60 tare fnmace-LF-RH-5 tingo casting-hot rolling/ hotfog. ing process at Daye Special Steel.Results showed that with the process measures such as hot metal chare rtio 30~60%%. controlling deleterious residual elements in scrap and alloy matenals,LF refining. RH yacwm treament.sott Arblowing amd Ar gas shield casting, the As content in the high cleanlincss beayy ound seetions of CGr18Mo beaing steel wes 0.010%~ 0.012%,(As+Sn+Sb)0.022%~0.025%,Pb0.0007%~0.0011%,Ti(17~19)×10-6,Ca3×10-6,[0](6.5~6.7)×10-6,and rating of Agade inclusion was0.5~1.5,B gnde0~1.0,Cgnde0,and D gade 0.5~1.0.