JP6475840B2 - 表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板、並びにその製造方法 - Google Patents
表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板、並びにその製造方法 Download PDFInfo
- Publication number
- JP6475840B2 JP6475840B2 JP2017533553A JP2017533553A JP6475840B2 JP 6475840 B2 JP6475840 B2 JP 6475840B2 JP 2017533553 A JP2017533553 A JP 2017533553A JP 2017533553 A JP2017533553 A JP 2017533553A JP 6475840 B2 JP6475840 B2 JP 6475840B2
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- less
- plating
- cold
- temperature
- 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.)
- Active
Links
- 238000007747 plating Methods 0.000 title claims description 112
- 229910001335 Galvanized steel Inorganic materials 0.000 title claims description 25
- 239000008397 galvanized steel Substances 0.000 title claims description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 132
- 239000010959 steel Substances 0.000 claims description 132
- 238000000137 annealing Methods 0.000 claims description 49
- 229910052710 silicon Inorganic materials 0.000 claims description 48
- 229910052748 manganese Inorganic materials 0.000 claims description 42
- 229910052782 aluminium Inorganic materials 0.000 claims description 32
- 238000001816 cooling Methods 0.000 claims description 32
- 239000010960 cold rolled steel Substances 0.000 claims description 31
- 229910052742 iron Inorganic materials 0.000 claims description 27
- 229910001566 austenite Inorganic materials 0.000 claims description 17
- 239000012535 impurity Substances 0.000 claims description 13
- 238000005098 hot rolling Methods 0.000 claims description 12
- 238000001953 recrystallisation Methods 0.000 claims description 12
- 229910052787 antimony Inorganic materials 0.000 claims description 11
- 229910052759 nickel Inorganic materials 0.000 claims description 11
- 238000005554 pickling Methods 0.000 claims description 10
- 238000005246 galvanizing Methods 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 238000003303 reheating Methods 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 229910052758 niobium Inorganic materials 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 230000000717 retained effect Effects 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 238000005097 cold rolling Methods 0.000 claims description 5
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 61
- 239000011572 manganese Substances 0.000 description 53
- 239000010410 layer Substances 0.000 description 35
- 239000011701 zinc Substances 0.000 description 21
- 229910052725 zinc Inorganic materials 0.000 description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 19
- 239000002344 surface layer Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 14
- 229910000838 Al alloy Inorganic materials 0.000 description 13
- 238000009792 diffusion process Methods 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
- 239000011651 chromium Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 239000010936 titanium Substances 0.000 description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- 229910000859 α-Fe Inorganic materials 0.000 description 10
- 239000010955 niobium Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 230000001590 oxidative effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910001563 bainite Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010301 surface-oxidation reaction Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000012854 evaluation process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007652 sheet-forming process Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- 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
- C21D1/26—Methods of annealing
-
- 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
-
- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- 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
- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0273—Final recrystallisation annealing
-
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0473—Final recrystallisation annealing
-
- 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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- 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
- C22C38/34—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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- C—CHEMISTRY; METALLURGY
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- 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
- 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
- C23C2/0224—Two or more thermal pretreatments
-
- C—CHEMISTRY; METALLURGY
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
-
- C—CHEMISTRY; METALLURGY
- 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
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- 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
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- 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
- C21D2211/005—Ferrite
-
- 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
- C21D2211/008—Martensite
-
- 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
- C21D8/0236—Cold rolling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Coating With Molten Metal (AREA)
- Electroplating Methods And Accessories (AREA)
Description
Cは、マルテンサイトの強度確保のために必要なため、0.1%以上添加されるべきであるが、0.3%を超えると、延性と曲げ加工性、及び溶接性が減少し、プレス成形及びロール加工性が悪くなるという短所があるため、Cの含量は0.1〜0.3%が好ましい。
Siは、鋼の降伏強度を向上させるとともに、室温でフェライト及び残留オーステナイトを安定化させるため、1%以上含有することが好ましい。またSiは、オーステナイトから冷却時にセメンタイトの析出を抑制し、炭化物の成長を顕著に阻止することにより、TRIP(Tranformation Induced Plasticity)鋼の場合、十分な量の残留オーステナイトを安定化するのに寄与する。したがって、本発明のように、引張強度1000MPa以上でありながら、引張強度(MPa)×延伸率(%)=15000以上を確保するのに必須となっている。これに対し、過多添加されると、熱間圧延負荷が増加して熱延クラックを誘発させるだけでなく、他の成分及び製造方法が本発明の範囲を満たしていても、焼鈍後に表面のSi濃化量が多くなり、メッキ性が劣位となるため、2.5%以下に制限することが好ましい。
Mnの含量は2.5〜8%が好ましい。鋼中Mnは、フェライト形成を抑制しオーステナイトを安定化させる硬化能増加元素として良く知られている。鋼板の引張強度を1000MPa以上確保するためには2.5%以上のMnが必要である。Mn含量が増加するほど強度の確保は容易になるが、焼鈍過程でMnの表面酸化量が増加するようになるため、本発明の製造方法を用いてもメッキ性の確保が困難になり、8%以下に制限することが好ましい。
Alは、製鋼工程において脱酸用として添加される元素であって、炭窒化物形成元素である。Alは、フェライト域を広げる合金元素であって、Ac1変態点を下げることで焼鈍費用を低減するという長所があるため、0.001%以上添加することが必要である。Al含有量が1%を超えると、溶接性が劣化するとともに、焼鈍過程でAlの表面酸化量が増加するようになるため、本発明の製造方法を用いてもメッキ性の確保が困難になり、sol.Alの含量は0.001〜0.5%が好ましい。
Pは、不純物元素であって、その含量が0.04%を超えると、溶接性が低下し、鋼の脆性が発生するダメージが大きくなり、デント欠陥の誘発可能性が高くなるため、その上限を0.04%に限定することが好ましい。
Sは、Pと同様に不純物元素であって、鋼板の延性及び溶接性を阻害する元素である。その含量が0.015%を超えると、鋼板の延性及び溶接性を阻害する可能性が高くなるため、その上限を0.015%に限定することが好ましい。
Nは、0.02%を超えると、AlNの形成によって連続鋳造時にクラックが発生するダメージが大きく増加するため、その上限を0.02%に限定することが好ましい。
Crは、硬化能増加元素であって、フェライト形成を抑制するという長所があるため、5〜25%の残留オーステナイトを確保するためには、0.1%以上添加することが好ましく、0.7%を超えると、合金投入量の過多によって合金鉄の原価が増加するため、Crの含量は0.1〜0.7%が好ましい。
Moは、選択的に添加されるが、含量は0.1%以下が好ましく、より好ましくは0.001〜0.1%である。Moは、Crと同様に強度向上に寄与する効果は大きいが、比較的高価な成分であるため、0.1%を超えると、経済的に好ましくない。
Tiは、窒化物形成元素であって、鋼中Nの濃度を減少させる効果があり、そのためには、化学当量的に(48/14)*[N]以上を添加する必要がある。Ti未添加の場合は、AlN形成による熱間圧延性クラックが発生する恐れがある。0.1%を超えると、固溶Nの除去以外に、更なる炭化物の析出によるマルテンサイトの炭素濃度及び強度が減少するため、Tiの含量は(48/14)*[N]〜0.1%が好ましい。
Niは、焼鈍過程で表面にほとんど濃化されず、メッキ性を低下させないため、強度向上のために0.005%以上を添加するが、0.5%を超えると、熱延鋼板の酸洗が不均一になるため、Niの含量は0.005〜0.5%が好ましい。
Sbは、本発明で表面品質及び密着性を確保するために必須で添加される重要な成分である。上記説明したように、高い強度と延伸率を有する鋼板を製造するために多量のSi、Al及びMnが添加されるが、このような鋼板を還元再結晶焼鈍すると、鋼中のSi、Al及びMnが鋼の表面に拡散して、表面に多量の複合酸化物を形成する。この場合、焼鈍表面の大部分が酸化物で覆われるようになるため、鋼板が亜鉛メッキ浴に浸漬される時に亜鉛の濡れ性を大きく低下させ、亜鉛が付着しないという、未メッキが発生するだけでなく、メッキされても、鋼板と亜鉛メッキ層の界面にFe−Al合金相が形成されないため、亜鉛メッキ層と素地鉄間の密着力が低下し、メッキ剥離が発生する。
Nbは、選択的に添加される。Nbは、オーステナイト粒界に炭化物の形態で偏析し、焼鈍熱処理時にオーステナイト結晶粒の粗大化を抑制して強度を増加させ、0.1%を超えると、合金投入量の過多による合金鉄の原価が増加するため、Nbの含量は0.1%以下が好ましい。
Bは、強度を確保するために、選択的に添加することができる。Bの含量が0.005%を超えると、焼鈍表面に濃化され、メッキ性を大きく低下する可能性があるため、Bの含量は0.005%以下が好ましい。
Claims (6)
- 質量%で、C:0.1〜0.3%、Si:1〜2.5%、Mn:2.5〜8%、sol.Al:0.001〜0.5%、P:0.04%以下、S:0.015%以下、N:0.02%以下(0%は除く)、Cr:0.1〜0.7%、Mo:0.1%以下、Ti:(48/14)*[N]〜0.1%、Ni:0.005〜0.5%、Sb:0.01〜0.07%、Nb:0.1以下、B:0.005%以下、残部Fe、及びその他の不可避な不純物からなる冷延鋼板と、前記冷延鋼板上に亜鉛メッキ層とが形成され、
前記冷延鋼板の表面から0.1μmの深さまでの平均Sb含量は、前記冷延鋼板の表面から0.5μm以上の深さにおける平均Sb含量の1.5倍以上である、表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板。 - 前記冷延鋼板の微細組織は、残留オーステナイトを5〜25%の面積分率で含む、請求項1に記載の表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板。
- 前記冷延鋼板の引張強度は、1000MPa以上であり、引張強度(Mpa)×延伸率(%)が15000以上である、請求項1に記載の表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板。
- 質量%で、C:0.1〜0.3%、Si:1〜2.5%、Mn:2.5〜8%、sol.Al:0.001〜0.5%、P:0.04%以下、S:0.015%以下、N:0.02%以下(0%は除く)、Cr:0.1〜0.7%、Mo:0.1%以下、Ti:(48/14)*[N]〜0.1%、Ni:0.005〜0.5%、Sb:0.01〜0.07%、Nb:0.1以下、B:0.005%以下、残部Fe、及びその他の不可避な不純物からなる鋼スラブを提供する段階と、
前記鋼スラブを1100〜1300℃の温度に再加熱する段階と、
前記再加熱された鋼スラブをAr3以上の温度で仕上げ熱間圧延する段階と、
前記熱間圧延された鋼板を700℃以下の温度で巻き取る段階と、
前記巻き取られた鋼板を酸洗後に冷間圧延する段階と、
前記冷間圧延された冷延鋼板を露点温度−60〜−20℃、温度750〜950℃で5〜120秒間再結晶焼鈍する段階と、
前記焼鈍された冷延鋼板を2〜150℃/秒の平均冷却速度で200〜600℃まで冷却する段階と、
前記冷却された鋼板を(メッキ浴温度−20℃)〜(メッキ浴温度+100℃)の温度に再加熱又は冷却する段階と、
前記再加熱又は冷却された鋼板を、450〜500℃の温度に維持される亜鉛メッキ浴に浸漬してメッキする段階とを含み、
前記亜鉛メッキ浴は、質量%で、Alを0.16〜1%含み、Fe、Ni、Cr、Mn、Mg、Si、P、S、Co、Sn、Bi、Sb、及びCuからなる群より選択された少なくとも一つの成分を合計量で0.5%以下含み、残部Zn、及びその他の不可避な不純物からなる、表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板の製造方法。 - 前記再結晶焼鈍はH2−N2ガス雰囲気下で行う、請求項4に記載の表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板の製造方法。
- 前記焼鈍段階の前に、前記焼鈍された冷延鋼板の表面に、Fe、Ni、Co、及びSnからなる群より選択された少なくとも一つの成分で0.01〜2g/m2のメッキ量をメッキする段階を更に含む、請求項4に記載の表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2014-0187622 | 2014-12-23 | ||
KR1020140187622A KR101647224B1 (ko) | 2014-12-23 | 2014-12-23 | 표면품질, 도금밀착성 및 성형성이 우수한 고강도 용융아연도금강판 및 그 제조방법 |
PCT/KR2015/014167 WO2016105115A1 (ko) | 2014-12-23 | 2015-12-23 | 표면품질, 도금밀착성 및 성형성이 우수한 고강도 용융아연도금강판 및 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018505963A JP2018505963A (ja) | 2018-03-01 |
JP6475840B2 true JP6475840B2 (ja) | 2019-02-27 |
Family
ID=56151050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017533553A Active JP6475840B2 (ja) | 2014-12-23 | 2015-12-23 | 表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板、並びにその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10793936B2 (ja) |
EP (1) | EP3239343B1 (ja) |
JP (1) | JP6475840B2 (ja) |
KR (1) | KR101647224B1 (ja) |
CN (1) | CN107109582B (ja) |
WO (1) | WO2016105115A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101630976B1 (ko) * | 2014-12-08 | 2016-06-16 | 주식회사 포스코 | 표면품질 및 도금 밀착성이 우수한 초고강도 용융아연도금강판 및 그 제조방법 |
MX2017013132A (es) * | 2015-04-15 | 2018-01-26 | Nippon Steel & Sumitomo Metal Corp | Hoja de acero laminada en caliente y metodo para producir la misma. |
KR101899680B1 (ko) * | 2016-12-21 | 2018-09-17 | 주식회사 포스코 | 표면품질과 도금밀착성이 우수한 고강도 용융아연 도금강판 및 그 제조방법 |
KR101899688B1 (ko) * | 2016-12-23 | 2018-09-17 | 주식회사 포스코 | 연속 생산성이 우수한 고강도 열연강판, 표면 품질 및 도금 밀착성이 우수한 고강도 용융아연도금강판 및 이들의 제조방법 |
KR102266855B1 (ko) * | 2017-12-18 | 2021-06-18 | 주식회사 포스코 | 용접성이 우수한 고강도 냉연강판 및 도금강판과 그 제조 방법 |
EP3757243B1 (en) * | 2018-03-30 | 2022-05-04 | JFE Steel Corporation | High-strength galvanized steel sheet, high strength member, and method for manufacturing the same |
CN108642422A (zh) * | 2018-05-17 | 2018-10-12 | 马钢(集团)控股有限公司 | 一种热成形钢板用镀液、热成形钢板及热成形部件 |
KR102153200B1 (ko) * | 2018-12-19 | 2020-09-08 | 주식회사 포스코 | 굽힘 가공성이 우수한 고강도 냉연강판 및 그 제조방법 |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3990539B2 (ja) * | 1999-02-22 | 2007-10-17 | 新日本製鐵株式会社 | メッキ密着性およびプレス成形性に優れた高強度溶融亜鉛メッキ鋼板および高強度合金化溶融亜鉛メッキ鋼板およびその製造方法 |
EP1342801B1 (en) * | 2000-09-12 | 2011-02-02 | JFE Steel Corporation | High tensile strength hot dip plated steel sheet and method for production thereof |
JP3698049B2 (ja) * | 2000-11-02 | 2005-09-21 | Jfeスチール株式会社 | 合金化溶融亜鉛めっき鋼板 |
EP1354970B1 (en) * | 2000-12-29 | 2011-02-16 | Nippon Steel Corporation | High-strength molten-zinc-plated steel plate excellent in deposit adhesion and suitability for press forming and process for producing the same |
JP4886118B2 (ja) | 2001-04-25 | 2012-02-29 | 株式会社神戸製鋼所 | 溶融亜鉛めっき鋼板 |
ATE469991T1 (de) | 2003-04-10 | 2010-06-15 | Nippon Steel Corp | Ein herstellungsverfahren für feuerverzinktes stahlblech mit hoher festigkeit |
US20060037677A1 (en) * | 2004-02-25 | 2006-02-23 | Jfe Steel Corporation | High strength cold rolled steel sheet and method for manufacturing the same |
JP4510488B2 (ja) | 2004-03-11 | 2010-07-21 | 新日本製鐵株式会社 | 成形性および穴拡げ性に優れた溶融亜鉛めっき複合高強度鋼板およびその製造方法 |
JP5042232B2 (ja) * | 2005-12-09 | 2012-10-03 | ポスコ | 成形性及びメッキ特性に優れた高強度冷延鋼板、これを用いた亜鉛系メッキ鋼板及びその製造方法 |
KR100711475B1 (ko) * | 2005-12-26 | 2007-04-24 | 주식회사 포스코 | 용융아연도금특성이 우수한 고 가공성 고강도 강판의제조방법 |
WO2008126945A1 (ja) * | 2007-04-11 | 2008-10-23 | Nippon Steel Corporation | 低温靱性に優れたプレス加工用溶融めっき高強度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 |
KR100957981B1 (ko) | 2007-12-20 | 2010-05-19 | 주식회사 포스코 | 가공성이 우수한 고강도 냉연강판, 용융도금 강판 및 그제조방법 |
KR100928788B1 (ko) | 2007-12-28 | 2009-11-25 | 주식회사 포스코 | 용접성이 우수한 고강도 박강판과 그 제조방법 |
JP5369663B2 (ja) * | 2008-01-31 | 2013-12-18 | 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 |
KR101008117B1 (ko) * | 2008-05-19 | 2011-01-13 | 주식회사 포스코 | 표면특성이 우수한 고가공용 고강도 박강판 및용융아연도금강판과 그 제조방법 |
KR101027250B1 (ko) * | 2008-05-20 | 2011-04-06 | 주식회사 포스코 | 고연성 및 내지연파괴 특성이 우수한 고강도 냉연강판,용융아연 도금강판 및 그 제조방법 |
KR20100076744A (ko) | 2008-12-26 | 2010-07-06 | 주식회사 포스코 | 강판의 소둔 장치, 도금 품질이 우수한 도금 강판의 제조 장치 및 이를 이용한 도금 강판의 제조방법 |
JP5636683B2 (ja) * | 2010-01-28 | 2014-12-10 | 新日鐵住金株式会社 | 密着性に優れた高強度合金化溶融亜鉛めっき鋼板および製造方法 |
JP5516057B2 (ja) * | 2010-05-17 | 2014-06-11 | 新日鐵住金株式会社 | 高強度溶融亜鉛めっき鋼板およびその製造方法 |
JP4978741B2 (ja) * | 2010-05-31 | 2012-07-18 | Jfeスチール株式会社 | 伸びフランジ性および耐疲労特性に優れた高強度熱延鋼板およびその製造方法 |
JP5141811B2 (ja) * | 2010-11-12 | 2013-02-13 | Jfeスチール株式会社 | 均一伸びとめっき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 |
KR101253885B1 (ko) * | 2010-12-27 | 2013-04-16 | 주식회사 포스코 | 연성이 우수한 성형 부재용 강판, 성형 부재 및 그 제조방법 |
US9970092B2 (en) * | 2011-09-30 | 2018-05-15 | Nippon Steel & Sumitomo Metal Corporation | Galvanized steel sheet and method of manufacturing the same |
KR101528010B1 (ko) * | 2012-12-21 | 2015-06-10 | 주식회사 포스코 | 도금성이 우수한 고망간강 용융아연도금강판 및 이의 제조방법 |
MX2015011463A (es) | 2013-03-04 | 2016-02-03 | Jfe Steel Corp | Lamina de acero de alta resistencia y metodo para la produccion de la misma y lamina de acero galvanizada de alta resistencia y metodo para la produccion de la misma. |
-
2014
- 2014-12-23 KR KR1020140187622A patent/KR101647224B1/ko active IP Right Grant
-
2015
- 2015-12-23 CN CN201580070546.7A patent/CN107109582B/zh active Active
- 2015-12-23 WO PCT/KR2015/014167 patent/WO2016105115A1/ko active Application Filing
- 2015-12-23 US US15/539,669 patent/US10793936B2/en active Active
- 2015-12-23 JP JP2017533553A patent/JP6475840B2/ja active Active
- 2015-12-23 EP EP15873642.1A patent/EP3239343B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3239343B1 (en) | 2020-02-05 |
US20180002790A1 (en) | 2018-01-04 |
KR101647224B1 (ko) | 2016-08-10 |
WO2016105115A1 (ko) | 2016-06-30 |
EP3239343A4 (en) | 2017-12-06 |
CN107109582A (zh) | 2017-08-29 |
EP3239343A1 (en) | 2017-11-01 |
US10793936B2 (en) | 2020-10-06 |
JP2018505963A (ja) | 2018-03-01 |
KR20160077567A (ko) | 2016-07-04 |
CN107109582B (zh) | 2019-11-29 |
WO2016105115A8 (ko) | 2016-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6763023B2 (ja) | 表面品質及びスポット溶接性に優れた高強度溶融亜鉛めっき鋼板及びその製造方法 | |
JP6475840B2 (ja) | 表面品質、メッキ密着性、及び成形性に優れた高強度溶融亜鉛メッキ鋼板、並びにその製造方法 | |
TWI472627B (zh) | 加工性優良的高強度鋼板的製造方法 | |
JP4589880B2 (ja) | 成形性と穴拡げ性に優れた高強度溶融亜鉛めっき鋼板と高強度合金化溶融亜鉛めっき鋼板及び高強度溶融亜鉛めっき鋼板の製造方法並びに高強度合金化溶融亜鉛めっき鋼板の製造方法 | |
JP5228062B2 (ja) | 溶接性に優れた高強度薄鋼板及びその製造方法 | |
US9340859B2 (en) | Method for manufacturing high strength galvanized steel sheet having excellent stability of mechanical properties, formability, and coating appearance | |
US20090202382A1 (en) | High manganese steel strips with excellent coatability and superior surface property, coated steel strips using steel strips and method for manufacturing the steel strips | |
US10138530B2 (en) | Method for producing high-strength galvannealed steel sheets | |
JP5354600B2 (ja) | 機械的な性質及び表面品質に優れた高強度亜鉛メッキdp鋼板及びその製造方法 | |
JP5564432B2 (ja) | 加工性に優れた高強度冷延鋼板、亜鉛メッキ鋼板及びその製造方法 | |
JP5765116B2 (ja) | 深絞り性および伸びフランジ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 | |
CN110100031B (zh) | 高强度热轧钢板和冷轧钢板、高强度热浸镀锌钢板及它们的制造方法 | |
EP2749665B1 (en) | High strength hot dip galvanized steel sheet having excellent deep- drawability, and method for producing same | |
KR101647223B1 (ko) | 표면품질 및 도금밀착성이 우수한 고강도 용융아연도금강판 및 그 제조방법 | |
KR20120121811A (ko) | 고강도 강판 및 그 제조 방법 | |
WO2018030502A1 (ja) | 高強度鋼板およびその製造方法 | |
JP5853884B2 (ja) | 溶融亜鉛めっき鋼板およびその製造方法 | |
KR101647225B1 (ko) | 표면품질 및 내파우더링성이 우수한 고강도 합금화용융아연도금강판 및 그 제조방법 | |
KR101452052B1 (ko) | 도금밀착성이 우수한 고강도 합금화 용융아연도금강판 및 그 제조방법 | |
KR20120121810A (ko) | 고강도 강판 및 그 제조 방법 | |
JP5151227B2 (ja) | 高強度鋼板およびその製造方法 | |
KR102606996B1 (ko) | 굽힘 가공성이 우수한 고강도 강판 및 그 제조방법 | |
KR102451002B1 (ko) | 강도, 성형성 및 표면 품질이 우수한 도금강판 및 이의 제조방법 | |
KR20240097069A (ko) | 내덴트성이 우수한 강판 및 그 제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20180815 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20180828 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20181126 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20190115 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20190201 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6475840 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |