Practice of Production for Development of Special Steel by 80t BOF-90tLF-RH-CC Flow Sheet at Huai Steel

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Practice of Production for Development of Special Steel by 80t BOF-90tLF-RH-CC Flow Sheet at Huai Steel

更新时间：2026-01-21

- Practice of Production for Development of Special Steel by 80t BOF-90tLF-RH-CC Flow Sheet at Huai Steel
- Special Steel Vol. 29, Issue 4, Pages: 36-38(2008)
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- Received：06 January 2008，
  
  Online First：23 December 2022，
  
  Published：23 December 2008
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Practice of Production for Development of Special Steel by 80t BOF-90tLF-RH-CC Flow Sheet at Huai Steel[J]. Special Steel, 2008, 29(4): 36-38.
DOI：

Practice of Production for Development of Special Steel by 80t BOF-90tLF-RH-CC Flow Sheet at Huai Steel[J]. Special Steel, 2008, 29(4): 36-38. DOI：

摘要

通过转炉采用高拉碳操作

控制出钢[P]≤0.012%

终渣碱度2.8～3.5;双挡渣工艺

LF精炼渣碱度≥4

(TFe+MnO)≤1.0%;应用低铝洁净钢精炼技术和含钡洁净钢生产技术专利;RH-MFB真空处理

连铸全程保护浇铸及二冷技术优化等措施

淮钢开发了127个特钢新产品

总氧含量(T[O]):轴承钢≤10×10-6

60Si2CrVAT弹簧钢≤12×10-6

CM490锚链钢≤15×10-6

37Mn5油井管坯钢≤18×10-6

SAE1022A冷镦钢和15CrMoG高压锅炉管坯钢≤20×10-6。

Abstract

With the operation measures such as BOF using catch carbon practice

controlling[P]≤0.012% at tapping

end slag basicity2.8~3.5

double slag stopping operation

LF refining slag basicity ≥4

(TFe+MnO)≤1.0%

using low aluminium content refining technology and bearing barium cleanliness steel produced technology

RH-MFB vacuum treatment

complete protective casting and optimized secondary cooling technology

127 different special steel designations have been developed at Huai Steel

the total oxygen content in bearing steel was≤10×10-°

spring steel 60Si2CrVAT≤12×10-6

mooring chain steel CM490≤15×10-6

tube blank steel 37MnS for oil well≤18×10-6

cold heading steel SAE1022A and tube blank steel 15CrMoG for high pressure boiler ≤20×10-6.

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