JP2015515547A - 高強度if低密度鋼および該鋼鉄の製造方法 - Google Patents
高強度if低密度鋼および該鋼鉄の製造方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 70
- 239000010959 steel Substances 0.000 title claims abstract description 70
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 5
- 239000010936 titanium Substances 0.000 claims description 32
- 229910052799 carbon Inorganic materials 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 22
- 229910052719 titanium Inorganic materials 0.000 claims description 22
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 20
- 238000000137 annealing Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 10
- 238000005098 hot rolling Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000003303 reheating Methods 0.000 claims description 7
- 238000005097 cold rolling Methods 0.000 claims description 5
- 238000005246 galvanizing Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 239000010960 cold rolled steel Substances 0.000 claims description 2
- 238000009749 continuous casting Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 48
- 229910052757 nitrogen Inorganic materials 0.000 description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 19
- 239000010955 niobium Substances 0.000 description 15
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 239000006104 solid solution Substances 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052758 niobium Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 229910052720 vanadium Inorganic materials 0.000 description 5
- 229910052726 zirconium Inorganic materials 0.000 description 5
- 238000005275 alloying Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
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- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
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- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- Y10T29/49991—Combined with rolling
Abstract
Description
・0.01%以下のC_total、
・0.2%以下のSi、
・1.0%以下のMn、
・6〜9%以下のAl、
・0.010%以下のN、
・0.080%以下のTi、
・0.080%以下のNb、
・0.1%以下のZr、
・0.1%以下のV、
・0.01%以下のS、
・0.1%以下のP、
・0.01%以下のB、
・残部として鉄および不可避不純物、
を含んでなり、
ここで、
C_total<=Minimum[X,Y]
+Maximum[Z,0]
+12/93×Nb
+12/91×Zr
+12/51×V、
ここで、
・X=2×12/(2×32)×S、
・Y=2×12/(4×48)×(Ti−48/14×N)、
・Z=12/48×(Ti−48/14×N−4×48/(2×32)×S)、
ここで、
Minimum[X,Y]=XおよびYの小さい方の値、
Minimum[X,Y]=Yが負の場合は0、
Maximum[Z,0]=0およびZの大きい方の値、
ここで、
C_solute=C_total
−Minimum[X,Y]
−Maximum[Z,0]
−12/93×Nb
−12/91×Zr
−12/51×V、
ここで、C_solute<=0である、IFフェライト鋼ストリップまたはシートを提供することによって達成することができる。
X=2×12/(2×32)×SはX=2×((12/(2×32))×S)として記載することもできる、
Y=2×12/(4×48)×(Ti−48/14×N)はY=2×(12/(4×48))×(Ti−((48/14)×N))として記載することもできる。
Z=12/48×(Ti−48/14×N−4×48/(2×32)×S)はZ=(12/48)×(Ti−(48/14×N)−((4×48/(2×32))×S))として記載することができる。
93、91および51はそれぞれNb、ZrおよびVの原子質量であり、12はCの原子質量である。比12/93、12/91および12/51を使用して、どれくらいの炭素がNb、ZrまたはVによって炭化物として消費されたかを算出し、したがって、(例えば)12/93×Nbの比は(12/93)×Nbと解釈されなければならない。図1は、日本国特開2005−120399号からの先行技術の鋼鉄CAに基づいた計算の一例を示す。
・0.2%以下のSi、
・1.0%以下のMn、
・6〜9%以下のAl、
・0.010%以下のN、
・0.08%以下のNb、
・0.1%以下のZr、
・0.1%以下のV、
・0.01%以下のS、
・0.1%以下のP、
・0.01%以下のB、
・残部として鉄および不可避不純物
の基本組成を有する。
・鋼スラブまたは肉厚ストリップを
○連続キャスティング、または
○薄スラブキャスティング、または
○ベルトキャスティング、または
○ストリップキャスティング
によって提供する工程、
・場合によって続いて鋼スラブまたはストリップを最大でも1250℃の再加熱温度で再加熱する工程、
・スラブまたは肉厚ストリップを熱間圧延し、少なくとも850℃の熱間圧延最終温度で熱間圧延プロセスを仕上げる工程、
・熱間圧延ストリップを500〜750℃のコイリング温度でコイリングする工程
を含んでなる方法が提供される。
・40〜90%の冷間圧下率(cold-rolling reduction)で熱間圧延ストリップを冷間圧延して、冷間圧延ストリップを製造する工程、
・700〜900℃のピーク金属温度での連続アニーリングプロセス、または650〜800℃の最高温度でのバッチアニーリングプロセスにおいて、冷間圧延ストリップをアニーリングする工程、
・溶融亜鉛めっきまたは電気亜鉛めっきまたはヒート・トゥ・コート(heat-to-coat)プロセスでアニーリングされたストリップを場合によって亜鉛めっきする工程
を含んでなるプロセスでさらに加工することができる。
Claims (15)
- 重量パーセントで、
・0.01%以下のC_total、
・0.2%以下のSi、
・1.0%以下のMn、
・6〜9%以下のAl、
・0.010%以下のN、
・0.080%以下のTi
・0.080%以下のNb、
・0.1%以下のZr、
・0.1%以下のV、
・0.01%以下のS、
・0.1%以下のP、
・0.01%以下のB、
・残部として鉄および不可避不純物、
を含んでなり、
ここで、
C_total<=Minimum[X,Y]
+Maximum[Z,0]
+12/93×Nb
+12/91×Zr
+12/51×V、
ここで、
X=2×12/(2×32)×S、
Y=2×12/(4×48)×(Ti−48/14×N)、
Z=12/48×(Ti−48/14×N−4×48/(2×32)×S)、
ここで、
Minimum[X,Y]=XおよびYの小さい方の値であり、
Minimum[X,Y]=Yが負の場合は0、
Maximum[Z,0]=0およびZの大きい方の値、
C_solute=C_total
−Minimum[X,Y]
−Maximum[Z,0]
−12/93×Nb
−12/91×Zr
−12/51×V、
ここで、C_soluteは0以下である、IFフェライト鋼ストリップまたはシート。 - 最大で0.019%のチタンを含んでなる、請求項1に記載の鋼鉄。
- 鋼鉄が不可避不純物としてチタンのみを含んでなる、請求項1に記載の鋼鉄。
- Alが少なくとも6.5%および/または最大で8.5%である、請求項1〜3のいずれか一項に記載の鋼鉄。
- Nが最大で0.004%(40ppm)、好ましくは最大で0.003%(30ppm)である、請求項1〜4のいずれか一項に記載の鋼鉄。
- Mnが少なくとも0.1%および/またはSiが最大で0.05%である、請求項1〜5のいずれか一項に記載の鋼鉄。
- 鋼鉄の比重が6800〜7300kg/m3である、請求項1〜6のいずれか一項に記載の鋼鉄。
- 鋼鉄が冷間圧延鋼鉄シートである、請求項1〜7のいずれか一項に記載の鋼鉄。
- フェライト鋼ストリップの製造方法であって:
・場合によってカルシウム処理された、鋼スラブもしくは肉厚ストリップを:
・連続キャスティング、もしくは
・薄スラブキャスティング、もしくは
・ベルトキャスティング、もしくは
・ストリップキャスティング
によって提供する工程、
鋼鉄は、重量パーセントで、
・0.01%以下のC_total、
・0.2%以下のSi、
・1.0%以下のMn、
・6〜9%以下のAl、
・0.010%以下のN、
・0.080%以下のTi
・0.080%以下のNb、
・0.1%以下のZr、
・0.1%以下のV、
・0.01%以下のS、
・0.1%以下のP、
・0.01%以下のB、
・残部として鉄および不可避不純物、
を含んでなり、
ここで、
C_total<=Minimum[X,Y]
+Maximum[Z,0]
+12/93×Nb
+12/91×Zr
+12/51×V、
ここで、
X=2×12/(2×32)×S、
Y=2×12/(4×48)×(Ti−48/14×N)、
Z=12/48×(Ti−48/14×N−4×48/(2×32)×S)、
ここで
Minimum[X,Y]=XおよびYの小さい方の値であり、
Minimum[X,Y]=Yが負の場合は0、
Maximum[Z,0]=0およびZの大きい方の値、
C_solute=C_total
−Minimum[X,Y]
−Maximum[Z,0]
−12/93×Nb
−12/91×Zr
−12/51×V、
ここで、C_soluteは0以下である、
・場合によって、続いて鋼スラブまたはストリップを最大で1250℃の再加熱温度にて再加熱する工程、
・鋼スラブまたは肉厚ストリップを熱間圧延し、少なくとも850℃の熱間圧延仕上げ温度で熱間圧延プロセスを仕上げる工程、
・熱間圧延ストリップを600〜750℃のコイリング温度でコイリングする工程
を含んでなる、方法。 - 鋼鉄が最大で0.019%のチタンを含んでなる、請求項9に記載の方法。
- 鋼鉄が不可避不純物としてチタンのみを含んでなる、請求項9に記載の方法。
- 熱間圧延ストリップを:
・連続アニーリング工程で再加熱し、場合によって続いて溶融亜鉛めっきを行い、続いて急速冷却を行う、または
・ヒート・トゥ・コート工程で再加熱し、続いて亜鉛めっきおよび急速冷却を実施する、請求項9〜11のいずれか一項に記載の方法。 - ・請求項9または10に記載の熱間圧延フェライト鋼ストリップを40〜90%の冷間圧下率で冷間圧延して、冷間圧延ストリップを製造し、
・冷間圧延ストリップを700〜900℃のピーク金属温度で連続アニーリングプロセスにおいて、または650〜800℃の最高温度にてバッチアニーリングプロセスにおいて、アニーリングし、
・場合によって、アニーリングされたストリップを溶融亜鉛めっきまたは電気亜鉛めっきまたはヒート・トゥ・コートプロセスで亜鉛めっきすること
を含んでなる、請求項9〜11のいずれか一項に記載の方法。 - 連続アニーリングプロセスにおけるピーク金属温度が少なくとも750℃、好ましくは少なくとも800℃である、請求項13に記載の方法。
- 冷間圧下率が少なくとも50%である、および/または冷間圧延ストリップの厚さが0.4〜2mmである、請求項9〜14のいずれか一項に記載の方法。
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EP (1) | EP2836615B1 (ja) |
JP (1) | JP2015515547A (ja) |
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CN105088073B (zh) | 2015-08-28 | 2017-10-31 | 宝山钢铁股份有限公司 | 屈服强度600MPa级高延伸率热镀铝锌及彩涂钢板及其制造方法 |
US11852256B2 (en) | 2020-03-11 | 2023-12-26 | Ockerman Automation Consulting, Inc. | Flush-mount valve |
CN112410680A (zh) * | 2020-11-19 | 2021-02-26 | 北京交通大学 | 超高强度低密度钢及其制备方法 |
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-
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