Practice of Process for Production of GCr15 Bearing Steel by a 70 t EAF-LF-CC Flow Sheet
特殊钢2006年27卷第1期 页码:51-52
作者机构:
江苏淮钢有限公司,淮安,223002
作者简介:
[
"王忠英(1967-),男,博士,教授级高工,从事特殊钢精炼、 连铸工艺开发和研究"
]
基金信息:
DOI:
中图分类号:
收稿:2005-07-19,
网络首发:2006-02-01,
纸质出版:2006-02-01
稿件说明:
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王忠英, 张银生, 王前, 等. 70 t EAF-LF-CC流程生产GCr15轴承钢的工艺实践[J]. 特殊钢, 2006,27(1):51-52.
王忠英, 张银生, 王前, et al. Practice of Process for Production of GCr15 Bearing Steel by a 70 t EAF-LF-CC Flow Sheet[J]. Special Steel, 2006, 27(1): 51-52.
王忠英, 张银生, 王前, 等. 70 t EAF-LF-CC流程生产GCr15轴承钢的工艺实践[J]. 特殊钢, 2006,27(1):51-52.DOI:
王忠英, 张银生, 王前, et al. Practice of Process for Production of GCr15 Bearing Steel by a 70 t EAF-LF-CC Flow Sheet[J]. Special Steel, 2006, 27(1): 51-52.DOI:
Φ12~60 mm bar products of CCr15 bearing steel are produced by a 70 t high impedance UHP EAF-a 80 t ladle refining furnace-5 strand 150 mm×150 mm billet concaster flow sheet at Huaigang Co Lad. The statistical results of 36 heats bearing steel production data showed that with the process operation such as electric arc furnace charging 40%~ 50% hot metal to decrease residual elements and hydrogen content in steel
whole time argon stirring in refining
deoxidation by barium alloy
and shielding casting
the average oxygen content in billet of CCr15 bearing steel was less than 10×10-⁶
the porosity rating in steel products 0.5~1.5
the segregation rating 0.5~1.0
inclusion rating 0.5~2.0
and each quality index was to meet the requirement of GB/T18254-2002 standard