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首页> 外文会议>Iron Steel Supplement 2005 vol.40: The Joint International Conference of HSLA Steels 2005 and ISUGS 2005 >Producing High Quality Niobium-Bearing Steels Using the CSP Process at Nucor Steel Berkeley
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Producing High Quality Niobium-Bearing Steels Using the CSP Process at Nucor Steel Berkeley

机译：在纽柯钢铁伯克利使用CSP工艺生产高质量的含铌钢

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摘要

In the 16 years since the first hot band coil was rolled using the Compact Strip Production (CSP) at NUCOR Steel Crawfordsville, the product line produced by the sheet division of NUCOR and other minimills has grown in complexity and sophistication. Today, at Nucor Steel Berkeley (NSB), advanced high strength steels such as HSLA and Dual-Phase steels can be produced from electric furnace melts either as hot band or in cold rolled gauges produced on continuous annealing (CA) or continuous galvanizing (CG) lines. Similarly, with the addition of vacuum degassing, Interstitial-Free steels and AKDQ steels can also be produced on CA or CG lines. Niobium has already achieved its normal, prominent position in the HSLA steels and will soon appear in the DP and IF steels, as well. A recent, important development at NSB is the new intensified hot rolling sequence, where heavy gauge skelp of Nb HSLA steel for the X50-X70 API pipe can be rolled resulting in a uniform ferrite microstructure, impressive improvement in strength and toughness, and the absence of aberrant non-destructive test reflections. The ductility and formability of the CAL or CGL sheet grades is good, while the surface quality is more than adequate. It is now clear that high performance steels can be produced by the EAF plus thin slab casting route. This paper will review both some recent advances and their underlying physical and mechanical metallurgy.
机译：自从在NUCOR Steel Crawfordsville使用紧凑带材生产（CSP）轧制第一台热轧带钢卷以来的16年中，由NUCOR和其他小型轧机的薄板部门生产的产品线变得越来越复杂。如今，在纽柯钢铁伯克利（NSB）上，可以通过电炉熔体以热轧带或通过连续退火（CA）或连续镀锌（CG）生产的冷轧薄板来生产高级高强度钢，例如HSLA和双相钢。 ）行。同样，通过添加真空脱气，也可以在CA或CG生产线上生产无间隙钢和AKDQ钢。铌已经在HSLA钢中达到了正常的显着地位，并且很快还将在DP和IF钢中出现。 NSB最近的一项重要发展是新的强化热轧工艺，该工艺可以轧制用于X50-X70 API管的Nb HSLA钢厚规格的海藻丝，从而形成均匀的铁素体显微组织，强度和韧性得到显着改善，并且没有异常的非破坏性测试反射。 CAL或CGL板材牌号的延展性和可成型性良好，而表面质量则绰绰有余。现在很明显，可以通过电弧炉和薄板坯连铸工艺生产高性能钢。本文将回顾一些最新进展及其潜在的物理和机械冶金学。

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