JP5633173B2 - 冷延鋼板の製造方法 - Google Patents
冷延鋼板の製造方法 Download PDFInfo
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- JP5633173B2 JP5633173B2 JP2010088233A JP2010088233A JP5633173B2 JP 5633173 B2 JP5633173 B2 JP 5633173B2 JP 2010088233 A JP2010088233 A JP 2010088233A JP 2010088233 A JP2010088233 A JP 2010088233A JP 5633173 B2 JP5633173 B2 JP 5633173B2
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- steel sheet
- rolled steel
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- surface defects
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
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Description
Claims (1)
- 欠陥検出装置により検出されるスラブ中に存在する非金属介在物の大きさおよびスラブ表面からの深さ方向位置と、前記スラブを冷延鋼板とした時に前記非金属介在物が表面欠陥となるかどうかとの関係を、非金属介在物が表面欠陥とならない領域A、非金属介在物は表面欠陥となるが中間製品である熱延鋼板に表面研削を施すことにより表面欠陥とはならなくなる領域B、非金属介在物が表面欠陥となり熱延鋼板に表面研削を施しても表面欠陥がなくならない領域Cに分類して、予め求めておき、前記欠陥検出装置によるスラブ中の非金属介在物の検出結果を基に品質管理を行う冷延鋼板の製造方法;ここで、非金属介在物の大きさとは非金属介在物のスラブ幅方向の最大長を、非金属介在物のスラブ表面からの深さ方向位置とはスラブ表面と非金属介在物表面との最短距離を表す。
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JP2010088233A JP5633173B2 (ja) | 2010-04-07 | 2010-04-07 | 冷延鋼板の製造方法 |
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JP2010088233A JP5633173B2 (ja) | 2010-04-07 | 2010-04-07 | 冷延鋼板の製造方法 |
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JP2011218385A JP2011218385A (ja) | 2011-11-04 |
JP5633173B2 true JP5633173B2 (ja) | 2014-12-03 |
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JP2010088233A Expired - Fee Related JP5633173B2 (ja) | 2010-04-07 | 2010-04-07 | 冷延鋼板の製造方法 |
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JP4816130B2 (ja) * | 2006-02-22 | 2011-11-16 | Jfeスチール株式会社 | 鋼の連続鋳造鋳片の製造方法および鋳片の表層欠陥手入システム。 |
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