JP6599902B2 - 高強度多相鋼、製造方法および使用 - Google Patents
高強度多相鋼、製造方法および使用 Download PDFInfo
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- JP6599902B2 JP6599902B2 JP2016571335A JP2016571335A JP6599902B2 JP 6599902 B2 JP6599902 B2 JP 6599902B2 JP 2016571335 A JP2016571335 A JP 2016571335A JP 2016571335 A JP2016571335 A JP 2016571335A JP 6599902 B2 JP6599902 B2 JP 6599902B2
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- steel
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- 229910000831 Steel Inorganic materials 0.000 title claims description 142
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- 229910001563 bainite Inorganic materials 0.000 claims description 13
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- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
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- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
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- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 2
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- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
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- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
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- YPJRHEKCFKOVRT-UHFFFAOYSA-N lerociclib Chemical compound C1CN(C(C)C)CCN1C(C=N1)=CC=C1NC1=NC=C(C=C2N3C4(CCCCC4)CNC2=O)C3=N1 YPJRHEKCFKOVRT-UHFFFAOYSA-N 0.000 description 1
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- 238000002791 soaking Methods 0.000 description 1
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Images
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- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
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- B32—LAYERED PRODUCTS
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
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- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
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- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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Description
980MPa以上、さらには1180MPa以上の引張強度
8%以上の全伸び
20%以上、さらには40%以上の穴広げ値
500MPa以上、さらには780MPaを超える降伏強度
を有する溶融めっきされた高強度鋼をもたらすことである。
0.05≦C≦0.15%
2≦Mn≦3%
Al≦0.1%
0.3≦Si≦1.5%
0.01%≦Nb≦0.05%
N≦0.02%
0.1≦Cr+Mo≦1%
0.0001≦B<0.0025%
Ti≦0.5%
V<0.01%
S≦0.01%
P≦0.05%
からなり、組成の残部が鉄および精錬から生じる不可避的不純物であり、その微細構造は、表面割合で、50から95%の間のマルテンサイト、5から50%の間のフェライトとベイナイトとの合計からなり、フェライト粒径は10μm未満であり、フェライト粒径のアスペクト比は1から3の間である、溶融めっきされた鋼板である。
− 組成が前記の本発明による鋼を鋳造して、スラブを得る工程、
− 1180℃を超える温度のTreheatでスラブを再加熱する工程、
− 再加熱されたスラブを800℃を超える温度で熱間圧延して、熱間圧延鋼を得る工程、
− 500から800℃の間の巻取温度Tcoilingまで、従来の冷却速度で熱間圧延鋼を冷却する工程、次いで
− Tcoilingで冷却された熱間圧延鋼を巻き取る工程、
− 熱間圧延鋼を脱スケーリングする工程、
− 場合により、熱間圧延鋼を300℃を超える温度TIAで20分を超えて焼鈍する工程、
− 場合により、カバーに入る前の熱間圧延鋼の温度は400℃を超えるべきである。熱間圧延鋼の冷却速度は、1℃/分以下および0.01℃/分以上であるべきである。
− 鋼を冷間圧延して、冷間圧延鋼板を得る工程、
− 以下の工程を含む冷間圧延鋼板を焼鈍する工程、
− 前記冷延圧延鋼板を0.2%から4%の間の過剰酸素体積百分率を有する雰囲気を有する直火炉内で加熱する工程であって、酸化工程が500℃から750℃の間で起こる該加熱工程、
− 前記直火炉温度から放射管炉内の焼鈍温度まで加熱する工程であって、加熱速度は0.5から2.5℃/秒の間に含まれ、放射管炉内の雰囲気の露点は25℃以下である該加熱工程、
− 前記焼鈍温度Tannealは750から950℃の間に含まれる工程、
− 前記鋼を前記焼鈍温度Tannealで少なくとも30秒間および300秒間以下の間維持する工程、
− 冷間圧延鋼を440℃から470℃の間の温度TOAまで冷却する工程、
− 冷間圧延鋼をTOAで30秒を超え、180秒未満保持する工程、
− Tannealで維持される前記加熱および冷却工程の間に、冷間圧延鋼の表面を酸化し、その後還元して、Si、Mn、Al、Ti含有酸化物の1つ以上を含む、少なくとも200nmおよび100μm未満の内部酸化深さを得る工程、
− 冷間圧延鋼を溶融めっきして、コーティングされた冷間圧延鋼を得る工程、
− 場合により、冷間圧延鋼コーティングにおいて7%から15%の間の鉄含有率に達するように溶融めっきされた冷間圧延鋼を合金化溶融亜鉛メッキする工程、
− 溶融めっきされた冷間圧延鋼を、少なくとも1℃/秒の冷却速度で室温まで冷却する工程。
− Tcoilingは最後のパス温度Tlp℃より低くなければならない。この温度は、好ましくは800℃未満である。好ましくは、巻き取り温度は、500℃≦Tcoiling≦750℃である。
− 巻き取り後、熱間圧延された鋼は脱スケーリングされる。
− 次いで、場合により、熱間圧延された鋼は、300℃を超える温度で20分を超えて焼鈍される。熱処理が300℃未満で行われると、冷間圧延のための力が高すぎ、20分未満で同じ結果が得られると、材料はあまりに硬くなり、容易に冷間圧延されなくなる。さらに、本発明者らは、この熱的中間処理により驚くべき方法で板厚の均一性が大幅に改善することを見出した。好ましくは、熱処理は500℃から650℃の間で30時間から100時間行われる。
− 場合により、必要に応じて断熱されたカバーの下に熱間圧延された鋼を配置し、熱間圧延された製品の均一な冷却を促進するために1つ以上のコイルを覆う。さらに、本発明者らは、このカバー処理により板の厚さの均一性が向上することができることも発見した。
− 好ましい実施形態では、カバーに入る前の熱間圧延された鋼の温度は400℃を上回るべきである。鋼の冷却速度は、1℃/分以下且つ0.01℃/分以上であるべきである。冷却速度が1℃/分より高い場合、ホットバンドは冷間圧延後には硬くなりすぎる。0.01℃/分より低い冷却速度は、生産性に有害であろう。
− 最終的な目標厚さに依存する冷間圧延比を有する鋼の冷間圧延。冷間圧延比は、(冷間圧延前の厚さ)−(冷間圧延後の厚さ)/(冷間圧延前の厚さ)で定義される。冷間減少比は40から60%の間に含まれるのが好ましい。従って、蓄積された歪エネルギーは、焼鈍の間のさらなる再結晶を保証するのに十分である。
− 750℃から950℃の間でなければならない焼鈍温度Tannealまでの鋼の加熱。
UTS(MPa)は、圧延方向に対する横方向の引張試験によって測定された最大引張強度を指す。
再加熱温度(HR再加熱)、℃
仕上げ圧延温度(HRFT):℃
巻き取り温度(CT):℃
中間焼鈍温度(IA T):℃および時間(IA t):時間
ホットバンド減速冷却、カバーへの入口温度(℃)、および冷却速度(℃/分)
適用された冷間圧延(CR):
直火炉の酸化温度(DFF温度):℃
DFFにおける過剰の酸素体積百分率、
焼鈍温度到達前の加熱速度(℃/秒)
焼鈍炉の露点(℃)
焼鈍中の浸漬温度(AT):℃
焼鈍中の浸漬時間(At):秒
過時効温度範囲 OAT
過時効時間 OAt
コーティング種類:465℃での亜鉛メッキに対してはGI、様々な温度での金属化溶融亜鉛メッキに対してはGA
Claims (21)
- 少なくとも980MPaの引張強度を有し、500MPa以上の降伏強度を有し、8%以上の全伸びを有し、少なくとも20%の穴広げを有し、その組成は、質量パーセントで:
0.05≦C≦0.15%
2≦Mn≦3%
Al≦0.1%
0.3≦Si≦1.5%
0.01%≦Nb≦0.05%
N≦0.02%
0.1≦Cr+Mo≦1%
0.0001≦B<0.0025%
Ti≦0.5%
V<0.01%
S≦0.01%
P≦0.05%
からなり、組成の残部が鉄および精錬から生じる不可避的不純物であり、表面割合で、50から95%の間のマルテンサイト、および5から50%の間のフェライトとベイナイトとの合計からなる微細構造を有し、フェライト粒径は10μm未満であり、フェライト粒径は1から3の間のアスペクト比を有し、およびSi、Mn、Al、Ti含有酸化物の1つ以上を含む、少なくとも200nmおよび100μm未満の内部酸化深さが溶融めっきの下に存在する、冷間圧延され、溶融めっきされた鋼板。 - 0.09≦C≦0.14%である請求項1に記載の冷間圧延され、溶融めっきされた鋼板。
- 2.2≦Mn≦2.7%である請求項1または2に記載の冷間圧延され、溶融めっきされた鋼板。
- Al≦0.05%である請求項1から3のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板。
- 0.6<Si≦1.3%である請求項1から4のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板。
- Nb≦0.03%である請求項1から5のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板。
- 0.1≦Cr+Mo≦0.7%である請求項1から6のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板。
- 0.001≦B≦0.0022%である請求項1から7のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板。
- 0.02%≦Ti≦0.05%である請求項1から8のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板。
- フェライトおよびベイナイトの合計の表面割合は20から40%の間であり、平均フェライト粒径は3μm未満である請求項1から9のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板。
- 引張強度は少なくとも1180MPaであり、降伏強度は少なくとも780MPaであり、全伸びは少なくとも8%であり、および穴広げは少なくとも20%である請求項1に記載の冷間圧延され、溶融めっきされた鋼板。
- 鋼は、溶融亜鉛メッキまたは合金化溶融亜鉛メッキされる請求項1から11のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板。
- 以下の連続する工程:
− 組成が請求項1から9のいずれか一項に従った鋼を鋳造して、スラブを得る工程、
− 1180℃を超える温度のTreheatでスラブを再加熱する工程、
− 再加熱されたスラブを800℃を超える温度で熱間圧延して、熱間圧延鋼を得る工程、
− 500から800℃の間の巻取温度Tcoilingまで、熱間圧延鋼を冷却する工程、次いで
− Tcoilingで冷却された熱間圧延鋼を巻き取る工程、
− 熱間圧延鋼を脱スケーリングする工程、
− 熱間圧延鋼を、40から60%の冷間圧延減少率で冷間圧延して、冷間圧延鋼板を得る工程、
− 以下の工程を含む冷間圧延鋼板を焼鈍する工程、
− 前記冷延鋼板を0.2%から4%の間の過剰酸素体積百分率を有する雰囲気を有する直火炉内で直火炉温度まで加熱する工程であって、酸化工程が500℃から750℃の間で起こり、鉄酸化物の層が冷間圧延鋼板の表面上に形成される一方で、この鉄酸化物の下で内部酸化が起こる、該加熱工程、
− 前記直火炉温度から放射管炉内の焼鈍温度Tannealまで加熱する工程であって、加熱速度は0.5から2.5℃/秒の間を含み、放射管炉は、25℃以下の露点を有する雰囲気を有する、該加熱工程、
− 前記焼鈍温度Tannealは750から950℃の間に含まれる工程、
− 前記鋼を前記焼鈍温度Tannealで少なくとも30秒間および300秒間以下の間維持する工程、
− 冷間圧延鋼板を440℃から470℃の間の温度TOAまで冷却する工程、
− 冷間圧延鋼板を温度TOAで30秒を超え、180秒未満保持する工程、および
− Tannealで維持される前記加熱および冷却工程の間に、冷間圧延鋼板の表面を酸化し、その後還元して、鉄酸化物の層を完全に還元し、Si、Mn、Al、Ti含有酸化物の1つ以上を含む、少なくとも200nmおよび100μm未満の内部酸化深さを得る工程、
− 冷間圧延鋼板を溶融めっきして、冷間圧延され、溶融めっきされた鋼板を得る工程、
− 冷間圧延され、溶融めっきされた鋼板を、少なくとも1℃/秒の冷却速度で室温まで冷却する工程
を含む請求項1から12のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板の製造方法。 - 溶融めっきの後、冷間圧延され、溶融めっきされた鋼板は、溶融めっきにおいて7%から15%の間の鉄含有率に達するように合金化溶融亜鉛メッキされる、請求項13に記載の冷間圧延され、溶融めっきされた鋼板の製造方法。
- 500℃≦Tcoiling≦750℃である請求項13または14のいずれかに記載の冷間圧延され、溶融めっきされた鋼板の製造方法。
- 脱スケーリングの後、冷間圧延の前に、熱間圧延鋼を300℃を超える温度TIAで20分を超えて焼鈍する、請求項13から15のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板の製造方法。
- 熱間圧延鋼を、30時間から100時間の間の時間中500℃≦TIA≦650℃となるような温度TIAで焼鈍する、請求項16に記載の冷間圧延され、溶融めっきされた鋼板の製造方法。
- 温度TIAでの焼鈍の後、冷間圧延の前に、熱間圧延鋼をカバーの下に配置し、該熱間圧延鋼は、カバーに入る前に400℃を超える温度を有し、該熱間圧延鋼は、1℃/分以下および0.01℃/分以上である冷却速度でカバーの下で冷却される、請求項16または17のいずれかに記載の冷間圧延され、溶融めっきされた鋼板の製造方法。
- 放射管炉は、0℃未満の露点を有する混合ガス雰囲気を有し、冷間圧延鋼板の表面は、該放射管炉内で還元される、請求項13から18のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板の製造方法。
- 775℃≦Tanneal≦860℃である請求項13から19のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板の製造方法。
- 溶融めっきが液体亜鉛浴中で行われて、溶融亜鉛メッキされたまたは合金化溶融亜鉛メッキされた、冷間圧延され、溶融めっきされた鋼板を得る請求項13から20のいずれか一項に記載の冷間圧延され、溶融めっきされた鋼板の製造方法。
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Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6131919B2 (ja) * | 2014-07-07 | 2017-05-24 | Jfeスチール株式会社 | 合金化溶融亜鉛めっき鋼板の製造方法 |
ES2674133T3 (es) * | 2014-12-01 | 2018-06-27 | Voestalpine Stahl Gmbh | Procedimiento para el tratamiento térmico de un producto de manganeso-acero |
JP6020605B2 (ja) * | 2015-01-08 | 2016-11-02 | Jfeスチール株式会社 | 合金化溶融亜鉛めっき鋼板の製造方法 |
WO2016198906A1 (fr) * | 2015-06-10 | 2016-12-15 | Arcelormittal | Acier a haute résistance et procédé de fabrication |
CN108603269B (zh) * | 2016-02-10 | 2020-10-02 | 杰富意钢铁株式会社 | 高强度镀锌钢板及其制造方法 |
KR102162785B1 (ko) * | 2016-03-31 | 2020-10-07 | 제이에프이 스틸 가부시키가이샤 | 박 강판 및 도금 강판, 그리고, 열연 강판의 제조 방법, 냉연 풀 하드 강판의 제조 방법, 박 강판의 제조 방법 및 도금 강판의 제조 방법 |
WO2017168962A1 (ja) * | 2016-03-31 | 2017-10-05 | Jfeスチール株式会社 | 薄鋼板およびめっき鋼板、並びに、熱延鋼板の製造方法、冷延フルハード鋼板の製造方法、薄鋼板の製造方法およびめっき鋼板の製造方法 |
CN105908089B (zh) * | 2016-06-28 | 2019-11-22 | 宝山钢铁股份有限公司 | 一种热浸镀低密度钢及其制造方法 |
EP3467134B1 (en) * | 2016-08-10 | 2020-11-18 | JFE Steel Corporation | High-strength thin steel sheet and method for manufacturing same |
KR102245008B1 (ko) * | 2016-08-30 | 2021-04-26 | 제이에프이 스틸 가부시키가이샤 | 고강도 강판 및 그 제조 방법 |
US11142805B2 (en) * | 2016-09-30 | 2021-10-12 | Jfe Steel Corporation | High-strength coated steel sheet and method for manufacturing the same |
KR101889181B1 (ko) * | 2016-12-19 | 2018-08-16 | 주식회사 포스코 | 굽힘성 및 신장플랜지성이 우수한 고장력강 및 이의 제조방법 |
CN107164624B (zh) * | 2017-04-10 | 2020-02-21 | 首钢集团有限公司 | 一种控制含磷冷轧高强钢表面麻点缺陷的方法 |
CN107254572B (zh) * | 2017-06-01 | 2019-07-02 | 首钢集团有限公司 | 一种冷轧硅锰双相钢表面麻点缺陷的控制方法 |
CN109207841B (zh) | 2017-06-30 | 2021-06-15 | 宝山钢铁股份有限公司 | 一种低成本高成型性1180MPa级冷轧退火双相钢板及其制造方法 |
CN110832095B (zh) * | 2017-08-09 | 2021-09-28 | 日本制铁株式会社 | 热轧钢板及其制造方法 |
DE102017123236A1 (de) * | 2017-10-06 | 2019-04-11 | Salzgitter Flachstahl Gmbh | Höchstfester Mehrphasenstahl und Verfahren zur Herstellung eines Stahlbandes aus diesem Mehrphasenstahl |
JP6443594B1 (ja) * | 2017-10-20 | 2018-12-26 | Jfeスチール株式会社 | 高強度鋼板およびその製造方法 |
CN111247264A (zh) * | 2017-10-20 | 2020-06-05 | 杰富意钢铁株式会社 | 高强度钢板及其制造方法 |
CN107761007A (zh) * | 2017-10-23 | 2018-03-06 | 攀钢集团攀枝花钢铁研究院有限公司 | 低碳冷轧超高强双相钢及其制备方法 |
MX2020006497A (es) * | 2017-12-22 | 2020-09-17 | Jfe Steel Corp | Metodo para la produccion de lamina de acero galvanizada por inmersion en caliente y aparato de galvanizacion por inmersion en caliente continua. |
JP7137492B2 (ja) * | 2018-03-28 | 2022-09-14 | 株式会社神戸製鋼所 | 合金化溶融亜鉛めっき鋼板、及び合金化溶融亜鉛めっき鋼板の製造方法 |
WO2020049344A1 (en) * | 2018-09-07 | 2020-03-12 | Arcelormittal | Method for improving the formability of steel blanks |
KR102544887B1 (ko) * | 2018-12-26 | 2023-06-19 | 제이에프이 스틸 가부시키가이샤 | 고강도 용융 아연 도금 강판 및 그의 제조 방법 |
BE1026986B1 (fr) * | 2019-01-23 | 2020-08-25 | Drever Int S A | Procédé et four pour le traitement thermique d’une bande d’acier de haute résistance comprenant une chambre d’homogénéisation en température |
JP6809648B1 (ja) * | 2019-01-29 | 2021-01-06 | Jfeスチール株式会社 | 高強度鋼板及びその製造方法 |
WO2021123887A1 (en) * | 2019-12-19 | 2021-06-24 | Arcelormittal | High toughness hot rolled steel sheet and method of manufacturing the same |
WO2021176249A1 (en) * | 2020-03-02 | 2021-09-10 | Arcelormittal | High strength cold rolled and galvannealed steel sheet and manufacturing process thereof |
CN111411295B (zh) * | 2020-03-24 | 2021-06-15 | 首钢集团有限公司 | 一种多相钢构件及其制备方法、应用 |
CN113737108A (zh) * | 2020-05-27 | 2021-12-03 | 宝山钢铁股份有限公司 | 一种耐延迟开裂的电镀锌超强双相钢及其制造方法 |
US20230313332A1 (en) * | 2020-08-31 | 2023-10-05 | Baoshan Iron & Steel Co., Ltd. | High-strength low-carbon martensitic high hole expansion steel and manufacturing method therefor |
CN114107789B (zh) * | 2020-08-31 | 2023-05-09 | 宝山钢铁股份有限公司 | 一种780MPa级高表面高性能稳定性超高扩孔钢及其制造方法 |
EP4296386A1 (en) * | 2021-03-08 | 2023-12-27 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Method for manufacturing hot-dip galvanized steel sheet and method for manufacturing alloyed hot-dip galvanized steel sheet |
CN115181891B (zh) * | 2021-04-02 | 2023-07-11 | 宝山钢铁股份有限公司 | 980MPa级别低碳低合金热镀锌双相钢及快速热处理热镀锌制造方法 |
CN113930599B (zh) * | 2021-09-24 | 2023-06-13 | 首钢集团有限公司 | 一种改善镀锌hsla组织均匀性的制造方法 |
CN114231838A (zh) * | 2021-11-17 | 2022-03-25 | 邯郸钢铁集团有限责任公司 | 低残余应力冷成型高强钢s700mc及其生产方法 |
CN114480986B (zh) * | 2022-01-28 | 2023-03-24 | 本钢板材股份有限公司 | 一种热镀锌双相钢带钢及其生产工艺 |
CN114807755B (zh) * | 2022-04-15 | 2024-03-26 | 马鞍山钢铁股份有限公司 | 一种具有良好涂层质量的高强韧性预涂覆钢板及其制备方法以及钢构件及其应用 |
EP4303516A1 (en) | 2022-07-05 | 2024-01-10 | John Cockerill S.A. | Device for improving preoxidation in an annealing furnace |
CN115584440A (zh) * | 2022-10-19 | 2023-01-10 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种具有不同屈强比的1180MPa级连退双相钢及其制备方法 |
WO2024128312A1 (ja) * | 2022-12-15 | 2024-06-20 | 日本製鉄株式会社 | 鋼板および鋼板の製造方法 |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3646538B2 (ja) * | 1998-10-02 | 2005-05-11 | Jfeスチール株式会社 | 加工性に優れた溶融亜鉛めっき高張力鋼板の製造方法 |
JP3882679B2 (ja) * | 2002-05-23 | 2007-02-21 | Jfeスチール株式会社 | めっき外観の良好な深絞り性に優れた複合組織型高張力溶融亜鉛めっき冷延鋼板の製造方法 |
US6811624B2 (en) | 2002-11-26 | 2004-11-02 | United States Steel Corporation | Method for production of dual phase sheet steel |
DE60333400D1 (de) * | 2003-05-27 | 2010-08-26 | Nippon Steel Corp | Herstellungsverfahren für hochfestes dünnes stahlblech mit hervorragender beständigkeit gegenüber verzögertem bruch nach dem umformen |
US7883769B2 (en) | 2003-06-18 | 2011-02-08 | 3M Innovative Properties Company | Integrally foamed microstructured article |
US8084143B2 (en) * | 2003-09-30 | 2011-12-27 | Nippon Steel Corporation | High-yield-ratio and high-strength thin steel sheet superior in weldability and ductility, high-yield-ratio high-strength hot-dip galvanized thin steel sheet, high-yield ratio high-strength hot-dip galvannealed thin steel sheet, and methods of production of same |
JP4486336B2 (ja) * | 2003-09-30 | 2010-06-23 | 新日本製鐵株式会社 | 溶接性と延性に優れた高降伏比高強度冷延鋼板および高降伏比高強度溶融亜鉛めっき鋼板、並びに、高降伏比高強度合金化溶融亜鉛めっき鋼板とその製造方法 |
JP5162836B2 (ja) * | 2006-03-01 | 2013-03-13 | 新日鐵住金株式会社 | 溶接部の耐水素脆性に優れる高強度冷延鋼板及びその製造方法 |
US9067260B2 (en) | 2006-09-06 | 2015-06-30 | Arcelormittal France | Steel plate for producing light structures and method for producing said plate |
EP1897963A1 (fr) | 2006-09-06 | 2008-03-12 | ARCELOR France | Tole d'acier pour la fabrication de structures allegées et procédé de fabrication de cette tole |
JP5194878B2 (ja) * | 2007-04-13 | 2013-05-08 | Jfeスチール株式会社 | 加工性および溶接性に優れる高強度溶融亜鉛めっき鋼板およびその製造方法 |
EP2009127A1 (en) * | 2007-06-29 | 2008-12-31 | ArcelorMittal France | Process for manufacturing a galvanized or a galvannealed steel sheet by DFF regulation |
EP2028282B1 (de) * | 2007-08-15 | 2012-06-13 | ThyssenKrupp Steel Europe AG | Dualphasenstahl, Flachprodukt aus einem solchen Dualphasenstahl und Verfahren zur Herstellung eines Flachprodukts |
AU2009229885B2 (en) * | 2008-03-27 | 2011-11-10 | Nippon Steel Corporation | High-strength cold-rolled steel sheet, high-strength galvanized steel sheet, and high-strength alloyed hot-dip galvanized steel sheet which have excellent formability and weldability, and methods for manufacturing the same |
JP5251208B2 (ja) | 2008-03-28 | 2013-07-31 | Jfeスチール株式会社 | 高強度鋼板とその製造方法 |
JP5504643B2 (ja) * | 2008-08-19 | 2014-05-28 | Jfeスチール株式会社 | 加工性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法 |
JP2010126757A (ja) * | 2008-11-27 | 2010-06-10 | Jfe Steel Corp | 高強度溶融亜鉛めっき鋼板およびその製造方法 |
JP5394709B2 (ja) * | 2008-11-28 | 2014-01-22 | 株式会社神戸製鋼所 | 耐水素脆化特性および加工性に優れた超高強度鋼板 |
JP5564784B2 (ja) * | 2008-12-05 | 2014-08-06 | Jfeスチール株式会社 | 高強度溶融亜鉛めっき鋼板及び高強度合金化溶融亜鉛めっき鋼板の製造方法 |
BRPI1014674A2 (pt) * | 2009-03-31 | 2019-04-16 | Jfe Steel Corp | chapa de aço galvanizada de alta resistência e método de produção da mesma |
JP4924730B2 (ja) * | 2009-04-28 | 2012-04-25 | Jfeスチール株式会社 | 加工性、溶接性および疲労特性に優れる高強度溶融亜鉛めっき鋼板およびその製造方法 |
CA2759256C (en) | 2009-05-27 | 2013-11-19 | Nippon Steel Corporation | High-strength steel sheet, hot-dipped steel sheet, and alloy hot-dipped steel sheet that have excellent fatigue, elongation, and collision characteristics, and manufacturing method for said steel sheets |
ATE554190T1 (de) | 2009-08-25 | 2012-05-15 | Thyssenkrupp Steel Europe Ag | Verfahren zum herstellen eines mit einem metallischen, vor korrosion schützenden überzug versehenen stahlbauteils und stahlbauteil |
JP5771034B2 (ja) | 2010-03-29 | 2015-08-26 | 株式会社神戸製鋼所 | 加工性に優れた超高強度鋼板、およびその製造方法 |
GB2493302A (en) * | 2010-03-29 | 2013-01-30 | Kobe Steel Ltd | Ultra high strength steel plate having excellent workability, and protection method for same |
JP5434960B2 (ja) | 2010-05-31 | 2014-03-05 | Jfeスチール株式会社 | 曲げ性および溶接性に優れる高強度溶融亜鉛めっき鋼板およびその製造方法 |
KR20120075260A (ko) * | 2010-12-28 | 2012-07-06 | 주식회사 포스코 | 도금밀착성이 우수한 용융도금강판 및 그 제조방법 |
UA112771C2 (uk) | 2011-05-10 | 2016-10-25 | Арселормітталь Інвестігасьон І Десароло Сл | Сталевий лист з високою механічною міцністю, пластичністю і формованістю, спосіб виготовлення та застосування таких листів |
DE102011051731B4 (de) * | 2011-07-11 | 2013-01-24 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung eines durch Schmelztauchbeschichten mit einer metallischen Schutzschicht versehenen Stahlflachprodukts |
CA2850044C (en) * | 2011-09-30 | 2016-08-23 | Nippon Steel & Sumitomo Metal Corporation | Hot-dip galvanized steel sheet and manufacturing method thereof |
CA2850045C (en) * | 2011-09-30 | 2016-04-12 | Nippon Steel & Sumitomo Metal Corporation | Galvanized steel sheet and method of manufacturing the same |
ES2614465T3 (es) | 2012-07-10 | 2017-05-31 | Thyssenkrupp Steel Europe Ag | Producto plano de acero laminado en frío y procedimiento para su fabricación |
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