EP2828414A1 - Zunderarmer vergütungsstahl und verfahren zur herstellung eines zunderarmen bauteils aus diesem stahl - Google Patents
Zunderarmer vergütungsstahl und verfahren zur herstellung eines zunderarmen bauteils aus diesem stahlInfo
- Publication number
- EP2828414A1 EP2828414A1 EP13728095.4A EP13728095A EP2828414A1 EP 2828414 A1 EP2828414 A1 EP 2828414A1 EP 13728095 A EP13728095 A EP 13728095A EP 2828414 A1 EP2828414 A1 EP 2828414A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- strip
- hot
- less
- rolled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 239000000126 substance Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 25
- 238000005496 tempering Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000002243 precursor Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 238000000265 homogenisation Methods 0.000 claims description 4
- 238000005098 hot rolling Methods 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- 229910000760 Hardened steel Inorganic materials 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 16
- 238000000576 coating method Methods 0.000 description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000009466 transformation Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000011651 chromium Substances 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 238000007792 addition Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910000712 Boron steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000001995 intermetallic alloy Substances 0.000 description 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 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
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- -1 titanium nitrides Chemical class 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- 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
- C21D2241/00—Treatments in a special environment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49991—Combined with rolling
Definitions
- the invention further relates to a method for producing a low-scaling component according to claim 8, as well as the production of a strip from this steel according to claim 14.
- Such components are made of precursors such.
- B. made of sheets, sheet metal blanks, seamless or welded tubes and mainly used in the automotive industry, but also in agricultural machinery z.
- wear plates or wind turbines for example as supporting structures, there are applications.
- the tempering state of a component is determined by austenitizing
- the weight saving of all vehicle components plays a decisive role, on the other hand, but also a most favorable behavior of the individual components with high static and dynamic stress during operation as well as in the event of a crash.
- the primary suppliers are trying to meet this need by reducing the wall thickness by providing high-strength and ultra-high-strength steels, while at the same time improving component behavior during production and operation.
- press-hardened components by means of quenching precursors from press-hardenable steels by hot forming in a forming tool is known from DE 601 19 826 T2.
- Component experiences a quench hardening (press hardening) in the forming tool and thereby achieves the required strength properties.
- the metallic coating acts here as oxidation or Verzu mattersstikes.
- Aluminum alloy is coated, heated to above 700 ° C before forming to form an intermetallic alloy based on iron, aluminum and silicon on the surface and then the sheet is formed and cooled at a rate above the critical curing speed.
- the metallic coating also acts here as oxidation or Verzu mattersstikes.
- Press hardening advantageous because the coating can effectively reduce scaling of the base material and excessive tool wear or even avoided.
- the heated precursors would scale up in contact with the oxygen in the atmosphere and expose the tools to severe wear.
- the heating furnaces used industrially are usually operated with an atmosphere which does not oxidize iron, a strong scaling occurs during the transfer of the blank from the furnace to the press in the ambient atmosphere.
- the metallic coating which acts as an oxidation or anti-scaling agent is usually applied to the hot or cold strip in a continuous continuous process.
- hot-dip coatings this z. B. a hot dip galvanizing or Be Feueralumtechnik. It is also known as oxidation protection instead of a
- Automotive industry are z. B. the known angan-boron steel "22 nB5" and more recently also luftvergütbare steels according to a still unpublished patent application of the applicant.
- Reject rates e.g. a board can no longer be used in a fault-related extension of the furnace time.
- tempered steels which have the problem that at Al contents of more than 0.015%, the required Austenitmaschinestemperaturen 950 to 1050 ° C are very high and thus, inter alia, a strong scaling accompanied.
- the steel is used in the Nitrogen content of coordinated amount of zirconium alloyed to a sufficient
- inventive tempered steels AH with good tempering properties investigated there in Table 1 have the following alloy composition in%: C: 0.32-0.75, Si: 0.26-0.37, Mn: 0.40-1, 50, P : 0.009-0.012, S: 0.005-0.012, Al: 0.016-0.022, Cr: 0.02-1.52, Zr: 0.035-0.060, N: 0.0042-0.0065.
- the object of the invention is to provide a tempering steel, which is characterized without coating or coating by a very low tendency to mist and thus makes a subsequent removal of the scale before further processing superfluous.
- this tempering steel should also be suitable for press-forming of precursors, such as metal sheets, sheet metal blanks or pipes.
- Another object is to provide a method for producing a low-scale component from this steel.
- a tempering steel is used, the following
- Composition in% by weight comprises:
- the material according to the invention has the advantage that additional oxidation protection is no longer required before the mold is cured. As a result, an additional production step is saved, whereby the manufacturing costs for a cured or press-form hardened component in spite of the higher alloying costs decrease overall and beyond resources are spared.
- Austenitizing and can be added to the steel in addition to Mn. If nickel and / or copper are added to lower the austenitizing temperature, the addition should not be less than 0.05 wt% in order to exhibit a sufficient effect.
- Ni While nickel generally has a very strong influence on the transformation temperatures but is quite expensive, copper, especially in high aluminum steel, significantly reduces the transformation temperatures and is relatively inexpensive.
- the addition of Cu in combination with Ni is optimal in order to avoid copper-related surface defects such as any hot brittleness that may occur.
- the steel according to the invention contains 0.5% to 3.0% by weight of a fraction of the oxygen-affine element aluminum which is excessive compared with known tempering steels and additionally, optionally, levels of the oxygen-affine elements also comprise silicon and / or chromium.
- Aluminum, silicon and chromium at least 1.0% by weight, more preferably 2.0% by weight, optimally 3.0% by weight.
- the inventive tempering steel thus has an intrinsic
- Anti-scaling protection which eliminates the need for an additional coating as anti-scaling or subsequent scale removal before further processing.
- titanium is added to the tempering steel in contents of 0.010 - ⁇ 0.050% and boron in contents of 0.0015 - ⁇ 0.0040%.
- the element boron improves the hardenability of the steel by advantageously shifting the relevant transformation points. This is additionally promoted by the addition of titanium, in that the nitrogen present in the steel is set to titanium nitrides. In this way, boron nitride precipitates are avoided and the effectiveness of the added boron is improved.
- the oxygen content or moisture content in a nitrogen-containing Furnace atmosphere which may optionally contain hydrogen, ohlenmonoxid and carbon dioxide, to reduce so far that the dew point is advantageously below 0 ° C, since at low oxygen levels or low dew points compared to manganese
- oxygen-containing elements such as aluminum or silicon or chromium reinforced oxidize on the workpiece surface and form oxide films.
- Strip casting takes place, in the Macroseigerept and blowholes are largely avoided due to very homogeneous cooling conditions.
- the melt is flow-calmed and bended in a horizontal strip casting plant to form a preliminary strip in the range between 6 and 30 mm and then rolled to hot strip with a degree of deformation of at least 50%.
- the flow calming can be achieved by using a follower electromagnetic brake which produces a field synchronous or with an optimum relative speed to the belt, which ensures that in the ideal case the
- Speed of Schmelzenzulaufs is equal to the speed of the circulating conveyor belt.
- the considered disadvantageous bending of the solidifying Vorbandes is thereby avoided that the underside of the melt receiving casting tape is supported on a plurality of adjacent rollers. Reinforced is the Support in such a way that in the region of the casting belt, a negative pressure is generated, so that the casting belt is pressed firmly on the rollers
- the length of the conveyor belt is selected so that at the end of the conveyor belt before its deflection, the Vorband is largely solidified.
- a homogenization zone which is used for a temperature compensation and possible voltage reduction in the opening band.
- Rolling of the pre-strip to hot strip can be done either in-line or separately off-line.
- the pre-strip Before off-line rolling, the pre-strip may be either directly hot-rolled or sliced into sheets after manufacture prior to cooling. The strip or sheet material is then reheated after eventual cooling and unwound for off-line rolling or reheated and rolled as a slab.
- Strip casting plant 1 consisting of a circulating conveyor belt 2 and two deflection rollers 3, 3 '. Evident is also a side seal 4, which prevents the discontinued melt 5 can flow down to the right and left of the conveyor belt 2.
- the melt 5 is transported by means of a pan 6 to the strip casting plant 1 and flows through a provided in the bottom of the pan opening 7 in a feed vessel 8.
- This feed vessel 8 is formed as an overflow vessel.
- a homogenization zone 10 at.
- This consists of a thermally insulated housing 11 and a roller table, not shown here.
- the then following first stand 12 is formed either only as a pure drive unit, possibly with a small puncture or as a roll unit with a predetermined puncture.
- Subsequent scaffolding 14 instead, with the first three scaffolds 15, 15 ', 15 "effect the actual stitch reduction, while the last frame 16 is formed as a smoothing mill.
- Reel temperature is cooled down.
- a pair of scissors 20 is arranged between the end of the cooling section 17 and reel 19, 19 '.
- This scissors 20 has the task of dividing the hot strip 18 transversely as soon as one of the two reels 19, 19 'is fully wound.
- the beginning of the subsequent hot strip 18 is then passed to the second vacant reel 19, 19 '. This ensures that the tape tension is maintained over the entire tape length. This is particularly important in the production of thin hot strips.
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- Materials Engineering (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102012006470 | 2012-03-23 | ||
DE102013004905A DE102013004905A1 (de) | 2012-03-23 | 2013-03-15 | Zunderarmer Vergütungsstahl und Verfahren zur Herstellung eines zunderarmen Bauteils aus diesem Stahl |
PCT/DE2013/000165 WO2013139327A1 (de) | 2012-03-23 | 2013-03-19 | Zunderarmer vergütungsstahl und verfahren zur herstellung eines zunderarmen bauteils aus diesem stahl |
Publications (2)
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EP2828414A1 true EP2828414A1 (de) | 2015-01-28 |
EP2828414B1 EP2828414B1 (de) | 2017-08-30 |
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EP13728095.4A Active EP2828414B1 (de) | 2012-03-23 | 2013-03-19 | Zunderarmer vergütungsstahl und verfahren zur herstellung eines zunderarmen bauteils aus diesem stahl |
Country Status (6)
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US (2) | US10036085B2 (de) |
EP (1) | EP2828414B1 (de) |
KR (1) | KR102054878B1 (de) |
DE (1) | DE102013004905A1 (de) |
RU (1) | RU2618958C2 (de) |
WO (1) | WO2013139327A1 (de) |
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-
2013
- 2013-03-15 DE DE102013004905A patent/DE102013004905A1/de not_active Withdrawn
- 2013-03-19 WO PCT/DE2013/000165 patent/WO2013139327A1/de active Application Filing
- 2013-03-19 EP EP13728095.4A patent/EP2828414B1/de active Active
- 2013-03-19 KR KR1020147027255A patent/KR102054878B1/ko active IP Right Grant
- 2013-03-19 US US14/387,158 patent/US10036085B2/en active Active
- 2013-03-19 RU RU2014142690A patent/RU2618958C2/ru active
-
2018
- 2018-04-20 US US15/958,204 patent/US10822681B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112267069A (zh) * | 2020-09-30 | 2021-01-26 | 江苏省沙钢钢铁研究院有限公司 | 2100MPa级镀锌钢丝用盘条及其制造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP2828414B1 (de) | 2017-08-30 |
RU2014142690A (ru) | 2016-05-20 |
DE102013004905A1 (de) | 2013-09-26 |
WO2013139327A1 (de) | 2013-09-26 |
US10036085B2 (en) | 2018-07-31 |
RU2618958C2 (ru) | 2017-05-11 |
KR102054878B1 (ko) | 2020-01-22 |
KR20140138801A (ko) | 2014-12-04 |
US10822681B2 (en) | 2020-11-03 |
US20180237892A1 (en) | 2018-08-23 |
US20150020992A1 (en) | 2015-01-22 |
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