JP2023509410A - 低ケイ素低炭素当量ギガパスカル級多相鋼板/鋼帯及びその製造方法 - Google Patents
低ケイ素低炭素当量ギガパスカル級多相鋼板/鋼帯及びその製造方法 Download PDFInfo
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- JP2023509410A JP2023509410A JP2022539208A JP2022539208A JP2023509410A JP 2023509410 A JP2023509410 A JP 2023509410A JP 2022539208 A JP2022539208 A JP 2022539208A JP 2022539208 A JP2022539208 A JP 2022539208A JP 2023509410 A JP2023509410 A JP 2023509410A
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- gigapascal
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 151
- 239000010959 steel Substances 0.000 title claims abstract description 151
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- 239000010703 silicon Substances 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 45
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims description 28
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 14
- 229910052796 boron Inorganic materials 0.000 claims abstract description 11
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 3
- 239000000047 product Substances 0.000 claims description 24
- 238000005096 rolling process Methods 0.000 claims description 23
- 229910000859 α-Fe Inorganic materials 0.000 claims description 19
- 229910001563 bainite Inorganic materials 0.000 claims description 17
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 238000009749 continuous casting Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 229910000734 martensite Inorganic materials 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
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- 239000002245 particle Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
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- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
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- 239000008397 galvanized steel Substances 0.000 claims description 5
- 238000000137 annealing Methods 0.000 claims description 3
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- 230000000052 comparative effect Effects 0.000 description 15
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- 238000005098 hot rolling Methods 0.000 description 14
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- 239000010955 niobium Substances 0.000 description 11
- 238000013461 design Methods 0.000 description 10
- 239000011651 chromium Substances 0.000 description 6
- 229910052758 niobium Inorganic materials 0.000 description 6
- 241000219307 Atriplex rosea Species 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 230000002411 adverse Effects 0.000 description 5
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- 238000003466 welding Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
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- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
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- 229910052759 nickel Inorganic materials 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- QFGIVKNKFPCKAW-UHFFFAOYSA-N [Mn].[C] Chemical compound [Mn].[C] QFGIVKNKFPCKAW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
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- 230000003647 oxidation Effects 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
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- 238000003303 reheating Methods 0.000 description 1
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- 238000005245 sintering Methods 0.000 description 1
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- 239000013585 weight reducing agent Substances 0.000 description 1
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0222—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising or reducing atmosphere
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- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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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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Abstract
Description
鋼中のケイ素含有量が高いと、赤いうろこ状などの欠陥(赤いスケール、虎の縞模様など)が形成され、鋼の表面品質が低下する可能性があり、なかでも、ケイ素含有量が0.5%の自動車用鋼では、ストリップ鋼の表面に等間隔の縞模様のスケールがあり、赤いスケール、虎の縞模様ばどの疵が、ストリップ鋼の表面の約30%を占めている。この表面状態は、表面の外観と色に非常に厳しい自動車パーツ製品の製造には使用できない。ケイ素含有量が自動車用鋼製品の要件を満たすことができる当該発明特許に開示された唯一の発明例では、高Cuおよび高Niの添加がさらに高い合金コストをもたらすことは言うまでもなく、炭素当量は0.73以上と高い。したがって、当該発明の特許に関わる製品は、市場で緊急に必要とされるギガパスカルレベル自動車シャーシ用の低コスト、低炭素当量の多相鋼製品を製造するために使用することはできない。
低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯であって、その成分の重量百分比は、C:0.03~0.07%、Si:0.1~0.5%、Mn:1.7~2.0%、P≦0.02%、S≦0.01%、N≦0.01%、Al:0.01~0.05%、Cr:0.4~0.7%、B:0.001~0.005%、Ti:0.07~0.15%であり、さらに、Mo:0.15~0.4%又はNb:0.02~0.08%の一つ又は二つを含み、残部は、Feと他の不可避不純物である;かつ同時に以下を満たす:
有効なB*含有量≧0.001、有効なB*含有量=B-[Ti-3.4N-1.2(C-Nb/7.8)]/22;
CE< 0.58、CE=C+Mn/6+(Cr+Mo+V)/5+(Si+Ni+Cu)/15。
好ましくは、重量百分比で、前記Si含有量は、0.15~0.27%である。
好ましくは、前記鋼板/鋼帯の微細組織は、フェライト、下部ベイナイト、および少量の炭素化物析出相、他の介在物相及び/又は微量マルテンサイト相であり、その中、体積百分比で、フェライト含有量≦20%、フェライト+下部ベイナイト含有量≧95%である。
1)製錬、連続鋳造
上記化学組成に従って製錬し、連続鋳造によりスラブを鋳造し、連続鋳造中のスラブの冷却速度≧5℃/sである;
2)スラブ熱送、圧延
700℃以上の温度で、スラブを加熱炉に投入し、スラブを加熱し、加熱温度は1100~1250℃である;スラブの熱間圧延の最初二回のパスの圧下率≧55%である;仕上げ圧延・最終圧延の温度は、850~950℃である;
3)圧延後冷却、卷取り
圧延後に、水で冷却し、卷取り温度は550~630℃である;
4)酸洗。
本発明にかかる鋼の成分設計において:
炭素(C):炭素が、直接に、鋼板/鋼帯の強度、溶接性と成形性に影響する。炭素の含有量が多いほど、鋼板の強度を向上させることに寄与し、炭素含有量が0.03%より低い場合、鋼板/鋼帯の強度が目標要求に達しない;炭素含有量が0.07%より高い場合、炭素当量が高すぎやすくなり、鋼板の溶接性が低下しやすくなる。したがって、本発明には、炭素含有量の範囲を、0.03~0.07%に制御する。
連続鋳造際のスラブ冷却速率が、鋼板/鋼帯の最終組織の結晶粒大きさ、液相に形成される介在物大きさ、スラブ組織における柱状結晶の割合に影響を与える。冷却速度が5℃/sより低いと、一方、スラブ中の柱状結晶の厚さまたは割合が設計上の要求より高くなり、そしてその後の最終組織で、帯状組織を形成しやすくなり、鋼板/鋼帯の曲げ特性に影響を与える;もう一方、連続鋳造中にスラブの冷却速度が低下すると、最終組織における結晶粒大きさが設計通りにならず、鋼の液相中に粗大介在物(典型的にはTiN)が発生し、穴拡げと曲げ特性に悪影響を及ぼす。
常温力学特性:引張強度≧980MPa、好ましくは≧1000MPa;降伏強度≧780MPa、好ましくは≧800MPa;
穴拡げ率性能:元の穴は抜き穴である場合の穴拡げ率は50%超、好ましくに≧55%;元の穴はリーマ穴である場合の穴拡げ率は60%超、好ましくに≧65%である。
表1に示される異なる組成の鋼を製錬してから、表2に示されるように加熱+熱間圧延プロセスを実行し、厚さが4mm未満の鋼板を得た。長手方向に50mmゲージ長と5mmゲージ長の引張サンプルを採取し、降伏、引張強度および伸びを測定し,鋼板中央部に穴拡げ率と180ー曲げ特性を測定した;試験データを表2に示す。ただし、穴拡げ率は、中央部に穴のある試料をパンチ金型でダイ金型に押し込み、板の穴縁部がくびれたり貫通亀裂が生じたりするまで、試料の中央部の穴を拡げるといった穴拡げ試験で測定した。試料中央部の元の穴の製造方法は穴拡げ率の計測結果に大きな影響を与えるため、抜き穴およびリーマ穴によってそれぞれ試料中央部の元の穴を製造し、後段の試験および計測方法は、ISO/DIS 16630規格に規定される穴広げ率の計測方法に沿って行われた。
Claims (11)
- 成分重量百分率は、C:0.03~0.07%、Si:0.1~0.5%、Mn:1.7~2.0%、P≦0.02%、S≦0.01%、N≦0.01%、Al:0.01~0.05%、Cr:0.4~0.7%、B:0.001~0.005%、Ti:0.07~0.15%であり、さらに、Mo:0.15~0.4%又はNb:0.02~0.08%の一つ又は二つを含み、残部は、Feと他の不可避不純物である;かつ同時に以下を満たすことを特徴とする低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯:
有効なB*含有量≧0.001、有効なB*含有量=B-[Ti-3.4N-1.2(C-Nb/7.8)]/22;
CE<0.58、CE=C+Mn/6+(Cr+Mo+V)/5+(Si+Ni+Cu)/15。 - 重量百分比で、前記のC含有量は、0.045~0.06%であることを特徴とする請求項1に記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯。
- 重量百分比で、前記のSi含有量は、0.15~0.27%であることを特徴とする請求項1に記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯。
- 重量百分比で、前記のB含有量は、0.002~0.004%であることを特徴とする請求項1に記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯。
- 前記鋼板/鋼帯の微細組織は、フェライト、下部ベイナイト、さらに少量の炭素化物析出相、他の介在物相及び/又は微量マルテンサイト相を含有し、フェライト含有量≦20%、フェライト+下部ベイナイト含有量≧95%であることを特徴とする請求項1~4のいずれか一つに記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯。
- 前記鋼板/鋼帯の微細組織には、さらにTiN粒子を含有し、且つ単一粒子の最長辺の長さ<8μm又は面積<50μm2であることを特徴とする請求項5に記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯。
- フェライト晶粒平均直径<6μmで、又は粒度レベルASTMグレード判定>11.8であることを特徴とする請求項5に記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯。
- 前記鋼板/鋼帯の引張強度≧980MPa、降伏強度≧780MPa、穴拡げ率は、元の穴は抜き穴である場合の穴拡げ率>50%;元の穴はリーマ穴である場合の穴拡げ率>60%を満たすことを特徴とする請求項1に記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯。
- 以下のステップを含む、請求項1~8のいずれか一つに記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯の製造方法:
1) 製錬、連続鋳造
請求項1~4のいずれか一つに記載された化学組成に従って製錬し、連続鋳造により鋳造スラブを鋳造し、連続鋳造中の冷却速度≧5℃/sである;
2) スラブ熱送、圧延
700℃以上の温度で、スラブを加熱炉に投入し、スラブを加熱し、加熱温度は1100~1250℃である;スラブの熱間圧延の最初二回のパスの圧下率≧55%である;仕上げ圧延・最終圧延の温度は、850~950℃である;
3) 圧延後冷却、卷取り
圧延後に、水で冷却し、卷取り温度は550~630℃である;
4) 酸洗。 - ステップ3)の酸洗の後に、溶融亜鉛めっき焼鈍プロセスも含み、これによって、熱間圧延溶融亜鉛めっき鋼板完成品を得ることを特徴とする請求項9に記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯の製造方法。
- 前記鋼板/鋼帯の厚みは、0.7~4.0mmであることを特徴とする請求項9に記載された低ケイ素低炭素当量ギガパスカルレベル多相鋼板/鋼帯の製造方法。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010248579A (ja) * | 2009-04-16 | 2010-11-04 | Sumitomo Metal Ind Ltd | 溶融めっき熱延鋼板およびその製造方法 |
WO2013022043A1 (ja) * | 2011-08-09 | 2013-02-14 | 新日鐵住金株式会社 | 低温での衝撃エネルギー吸収特性と耐haz軟化特性に優れた高降伏比熱延鋼板およびその製造方法 |
KR20130110638A (ko) * | 2012-03-29 | 2013-10-10 | 현대제철 주식회사 | 강판 및 그 제조 방법 |
WO2014132968A1 (ja) * | 2013-02-26 | 2014-09-04 | 新日鐵住金株式会社 | 焼き付け硬化性と低温靭性に優れた引張最大強度980MPa以上の高強度熱延鋼板 |
WO2015129199A1 (ja) * | 2014-02-27 | 2015-09-03 | Jfeスチール株式会社 | 高強度熱延鋼板およびその製造方法 |
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---|---|---|---|---|
JP4660315B2 (ja) * | 2005-08-09 | 2011-03-30 | 新日本製鐵株式会社 | 靭性に優れた厚手高強度鋼板の製造方法及び靭性に優れた厚手高強度鋼板 |
CN101008066B (zh) * | 2006-01-27 | 2010-05-12 | 宝山钢铁股份有限公司 | 抗拉强度高于1000MPa的热轧马氏体钢板及其制造方法 |
JP4088316B2 (ja) | 2006-03-24 | 2008-05-21 | 株式会社神戸製鋼所 | 複合成形性に優れた高強度熱延鋼板 |
JP2007284712A (ja) * | 2006-04-13 | 2007-11-01 | Nippon Steel Corp | 靭性に優れた厚手高強度鋼板の製造方法及び靭性に優れた厚手高強度鋼板 |
JP5483916B2 (ja) * | 2009-03-27 | 2014-05-07 | 日新製鋼株式会社 | 曲げ性に優れた高強度合金化溶融亜鉛めっき鋼板 |
CN102251170A (zh) * | 2010-05-19 | 2011-11-23 | 宝山钢铁股份有限公司 | 一种超高强度贝氏体钢及其制造方法 |
CN103305746B (zh) * | 2012-03-14 | 2015-09-23 | 宝山钢铁股份有限公司 | 一种时效硬化薄带连铸低碳微合金高强钢带制造方法 |
JP5895780B2 (ja) * | 2012-09-10 | 2016-03-30 | 新日鐵住金株式会社 | 大入熱溶接熱影響部靭性に優れた鋼板およびその製造方法 |
CN104513930A (zh) * | 2014-12-19 | 2015-04-15 | 宝山钢铁股份有限公司 | 弯曲和扩孔性能良好的超高强热轧复相钢板和钢带及其制造方法 |
CN106119702B (zh) * | 2016-06-21 | 2018-10-02 | 宝山钢铁股份有限公司 | 一种980MPa级热轧高强度高扩孔钢及其制造方法 |
CN105950998B (zh) * | 2016-07-11 | 2018-01-26 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种1000MPa级低碳热镀锌双相钢及其制备方法 |
CN109642292B (zh) * | 2016-08-31 | 2021-11-12 | 杰富意钢铁株式会社 | 高强度钢板及其制造方法 |
WO2018134186A1 (de) * | 2017-01-20 | 2018-07-26 | thyssenkrupp Hohenlimburg GmbH | Warmgewalztes stahlflachprodukt bestehend aus einem komplexphasenstahl mit überwiegend bainitischem gefüge und verfahren zur herstellung eines solchen stahlflachprodukts |
WO2018179388A1 (ja) * | 2017-03-31 | 2018-10-04 | 新日鐵住金株式会社 | 熱間圧延鋼板 |
CN109023036B (zh) * | 2017-06-12 | 2020-03-31 | 鞍钢股份有限公司 | 一种超高强热轧复相钢板及生产方法 |
CN108642379B (zh) * | 2018-05-15 | 2020-07-24 | 首钢集团有限公司 | 一种抗拉强度1200MPa级冷轧双相钢及其制备方法 |
-
2019
- 2019-12-31 CN CN201911415229.0A patent/CN113122769B/zh active Active
-
2020
- 2020-12-30 AU AU2020418007A patent/AU2020418007A1/en active Pending
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010248579A (ja) * | 2009-04-16 | 2010-11-04 | Sumitomo Metal Ind Ltd | 溶融めっき熱延鋼板およびその製造方法 |
WO2013022043A1 (ja) * | 2011-08-09 | 2013-02-14 | 新日鐵住金株式会社 | 低温での衝撃エネルギー吸収特性と耐haz軟化特性に優れた高降伏比熱延鋼板およびその製造方法 |
KR20130110638A (ko) * | 2012-03-29 | 2013-10-10 | 현대제철 주식회사 | 강판 및 그 제조 방법 |
WO2014132968A1 (ja) * | 2013-02-26 | 2014-09-04 | 新日鐵住金株式会社 | 焼き付け硬化性と低温靭性に優れた引張最大強度980MPa以上の高強度熱延鋼板 |
WO2015129199A1 (ja) * | 2014-02-27 | 2015-09-03 | Jfeスチール株式会社 | 高強度熱延鋼板およびその製造方法 |
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EP4086362A4 (en) | 2023-07-19 |
CN113122769A (zh) | 2021-07-16 |
WO2021136355A1 (zh) | 2021-07-08 |
BR112022011028A2 (pt) | 2022-08-16 |
JP7439265B2 (ja) | 2024-02-27 |
US20230049380A1 (en) | 2023-02-16 |
AU2020418007A1 (en) | 2022-07-21 |
KR20220119639A (ko) | 2022-08-30 |
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CN113122769B (zh) | 2022-06-28 |
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