JP4734073B2 - 溶融亜鉛めっき用鋼材の製造方法 - Google Patents
溶融亜鉛めっき用鋼材の製造方法 Download PDFInfo
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- JP4734073B2 JP4734073B2 JP2005287451A JP2005287451A JP4734073B2 JP 4734073 B2 JP4734073 B2 JP 4734073B2 JP 2005287451 A JP2005287451 A JP 2005287451A JP 2005287451 A JP2005287451 A JP 2005287451A JP 4734073 B2 JP4734073 B2 JP 4734073B2
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- phosphorus
- slab
- steel
- hot dip
- melted
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Description
図1および図2に基づいて,本発明の一実施形態に係る溶融亜鉛めっき用鋼材1の製造方法について詳細に説明する。なお,図1は,本実施形態に係る表層部にリンの濃化領域3を有する溶融亜鉛めっき用鋼材1の例を示す斜視図であり,図2は,本実施形態に係る表層部にリンの濃化領域3を有する溶融亜鉛めっき用鋼材1の製造方法を説明するための模式的な断面図である。
2 鋳片
3 リン濃化領域
4 加熱部
5 溶融部
11 電磁誘導コイル
12 プラズマトーチ
13 プラズマ
14 磁場
15 雰囲気ガス容器
16 不活性なガス雰囲気
F 移動方向
Claims (1)
- 鋼の連続鋳造鋳片の表面から4mm未満までを,誘導加熱またはプラズマ加熱のいずれか一方または双方を用いて溶融する加熱工程と,
前記加熱工程により溶融した溶融部に該溶融部におけるリン濃度が0.02質量%以上となるようにリンまたはリン合金を添加して,前記鋳片の表層部にリンの濃化領域を形成する表面改質工程と,
を含み,
前記鋳片の表面から4mm未満の厚みを有する前記リンを添加して部分的に改質処理を行う溶融部の領域を,熱間圧延までに酸化スケールとして除去することを特徴とする,溶融亜鉛めっき用鋼材の製造方法。
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JP2005287451A JP4734073B2 (ja) | 2005-09-30 | 2005-09-30 | 溶融亜鉛めっき用鋼材の製造方法 |
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JP2005287451A JP4734073B2 (ja) | 2005-09-30 | 2005-09-30 | 溶融亜鉛めっき用鋼材の製造方法 |
Publications (2)
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JP2007100118A JP2007100118A (ja) | 2007-04-19 |
JP4734073B2 true JP4734073B2 (ja) | 2011-07-27 |
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JP2005287451A Active JP4734073B2 (ja) | 2005-09-30 | 2005-09-30 | 溶融亜鉛めっき用鋼材の製造方法 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5014947B2 (ja) * | 2007-10-19 | 2012-08-29 | 新日本製鐵株式会社 | 表層溶融処理装置及び表層溶融処理開始方法 |
JP5009121B2 (ja) * | 2007-10-19 | 2012-08-22 | 新日本製鐵株式会社 | 鋳鋼片の表層溶融処理方法及び鋳鋼片の表層溶融処理装置 |
JP5131008B2 (ja) * | 2008-04-18 | 2013-01-30 | 新日鐵住金株式会社 | 鋳鋼片の表層溶融処理装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61266168A (ja) * | 1985-05-20 | 1986-11-25 | Toshiba Mach Co Ltd | 金型の排気弁 |
JPH10280093A (ja) * | 1997-04-10 | 1998-10-20 | Nippon Steel Corp | 合金化溶融亜鉛めっき用鋼板 |
JP2000273581A (ja) * | 1999-03-24 | 2000-10-03 | Nippon Steel Corp | 極低炭素鋼の連続鋳造鋳片およびその製造方法 |
JP2001279411A (ja) * | 2000-03-29 | 2001-10-10 | Kawasaki Steel Corp | 溶融亜鉛めっき鋼板の製造方法 |
JP2004195512A (ja) * | 2002-12-18 | 2004-07-15 | Nippon Steel Corp | 鋼鋳片の表層改質方法、改質鋳片および加工製品 |
-
2005
- 2005-09-30 JP JP2005287451A patent/JP4734073B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61266168A (ja) * | 1985-05-20 | 1986-11-25 | Toshiba Mach Co Ltd | 金型の排気弁 |
JPH10280093A (ja) * | 1997-04-10 | 1998-10-20 | Nippon Steel Corp | 合金化溶融亜鉛めっき用鋼板 |
JP2000273581A (ja) * | 1999-03-24 | 2000-10-03 | Nippon Steel Corp | 極低炭素鋼の連続鋳造鋳片およびその製造方法 |
JP2001279411A (ja) * | 2000-03-29 | 2001-10-10 | Kawasaki Steel Corp | 溶融亜鉛めっき鋼板の製造方法 |
JP2004195512A (ja) * | 2002-12-18 | 2004-07-15 | Nippon Steel Corp | 鋼鋳片の表層改質方法、改質鋳片および加工製品 |
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