CN102985570B - By flat steel product manufacture through thermoforming and quenching, the method for the steel components with metals against corrosion coating - Google Patents
By flat steel product manufacture through thermoforming and quenching, the method for the steel components with metals against corrosion coating Download PDFInfo
- Publication number
- CN102985570B CN102985570B CN201180029367.0A CN201180029367A CN102985570B CN 102985570 B CN102985570 B CN 102985570B CN 201180029367 A CN201180029367 A CN 201180029367A CN 102985570 B CN102985570 B CN 102985570B
- Authority
- CN
- China
- Prior art keywords
- steel product
- flat steel
- coating
- annealing
- metal
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 138
- 239000010959 steel Substances 0.000 title claims abstract description 138
- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000000576 coating method Methods 0.000 title claims abstract description 56
- 239000011248 coating agent Substances 0.000 title claims abstract description 55
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 31
- 239000002184 metal Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000010791 quenching Methods 0.000 title claims abstract description 12
- 230000000171 quenching effect Effects 0.000 title claims abstract description 12
- 238000003856 thermoforming Methods 0.000 title claims description 25
- 230000007797 corrosion Effects 0.000 title claims description 8
- 238000005260 corrosion Methods 0.000 title claims description 8
- 150000002739 metals Chemical class 0.000 title claims description 7
- 238000000137 annealing Methods 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000012797 qualification Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001764 infiltration Methods 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 claims description 5
- 229910018134 Al-Mg Inorganic materials 0.000 claims description 4
- 229910018467 Al—Mg Inorganic materials 0.000 claims description 4
- 229910018125 Al-Si Inorganic materials 0.000 claims description 3
- 229910018520 Al—Si Inorganic materials 0.000 claims description 3
- 229910009369 Zn Mg Inorganic materials 0.000 claims description 2
- 229910007570 Zn-Al Inorganic materials 0.000 claims description 2
- 229910007573 Zn-Mg Inorganic materials 0.000 claims description 2
- 229910007567 Zn-Ni Inorganic materials 0.000 claims description 2
- 229910007614 Zn—Ni Inorganic materials 0.000 claims description 2
- 238000010301 surface-oxidation reaction Methods 0.000 claims description 2
- 229910018464 Al—Mg—Si Inorganic materials 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 238000005488 sandblasting Methods 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 27
- 238000005121 nitriding Methods 0.000 description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 19
- 229910052757 nitrogen Inorganic materials 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 238000000227 grinding Methods 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 229910000521 B alloy Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910000635 Spelter Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007669 thermal treatment Methods 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- 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
- C21D8/04—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
- C21D8/0457—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 with diffusion of elements, e.g. decarburising, nitriding
-
- 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
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
-
- 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
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- 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
- 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
-
- 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
- C23C2/04—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
- C23C2/04—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
- C23C2/12—Aluminium 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
-
- 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
- C23C28/3225—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only with at least one zinc-based layer
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/36—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including layers graded in composition or physical properties
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to a kind of method being coated with the steel components of metal protection coating by flat steel product manufacture, this flat steel product has the Mn content of at least 0.4 % by weight.In order to manufacture the steel components of high soundness in an economical manner, make the risk in generation metal inducement gap drop to minimum, according to the present invention, flat steel product is annealed in continuous oven simultaneously, and annealing atmosphere contains the H reaching 25 volume %
2, 0.1-10 volume % NH
3, H
2the N of O and surplus
2and limiting unavoidable impurity due to technical qualification, this annealing atmosphere has the dew point between-50 DEG C and-5 DEG C, keeps 5-600 second under the holding temperature of 400-1100 DEG C.Flat steel product through anneal has the nitrided case (N) that thickness is 5-200 μm, and the grain-size of this nitrided case is less than the grain-size of the inner nuclear layer (K) being positioned at flat steel product inside.In flat steel product after coat of metal coating; sheet material is partitioned into by the flat steel product through annealing; this sheet material optional premolding post-heating to 780-950 DEG C austenitizing temperature, be thermoformed into steel components and then cool rapidly like this, thus form quenching structure in flat steel product.
Description
Technical field
The present invention relates to a kind of by flat steel product manufacture through thermoforming and quenching, the method for the steel components that is coated with metals against corrosion supercoat, this flat steel product has the Fe content of at least 0.4 % by weight.
Background technology
In the 61st International Auto Show held in Frankfort 15 to 25 September in 2005, be published in the article " potentiality of light and handy body of a motor car " in the exhibition report of Thyssen Krupp automobile stock company and reported, particularly manufacture the shaping quenching of use heat in high strength bodywork parts by boron alloy steel in practice.The steel of the exemplary of the boron alloy steel herein mentioned to be labels be 22MnB5, this steel can find with material number 1.5528 in steel handbook 2004.
Known in JP2006104526A with the steel that steel 22MnB5 is similar.This known steel is except iron and inevitable impurity C, the Mn of the Si of maximum 2%, 0.1-3%, the P of maximum 0.1% and the S of maximum 0.03% also containing (% by weight) 0.05-0.55%.In order to improve hardenability, the Ti of B and the 0.001-0.1% content of 0.0002-0.005% content additionally can be increased in steel.Each Ti content act as the nitrogen solidification making to exist in steel.The boron existed in steel as far as possible fully can play the effect that it promotes soundness by this way.
According to JP2006104526A, first make sheet material by the steel of this type, this sheet material is after a while higher than Ac
3-temperature, the temperature that typical case is arranged in 850-950 DEG C of scope carries out preheating.Next carry out in press tool, from this temperature province rapidly process of cooling, in the part by each plate blank extrusion molding, form the martensitic structure having ensured the high strength pursued.Advantageously, the sheet material being heated to described temperature levels can be deformed into the part of complicated shape by relatively little deformation force.This is specially adapted to this kind of sheet material, and it is made up of the steel of high soundness and is designed with corrosion-resistant coating.
There is a special difficulty in the steel components that zinc-plated flat steel product is thermoformed into high soundness or the highest soundness.The steel disc with metals against corrosion coating due to thermoforming and next carry out or such temperature must be heated in the quenching simultaneously carried out with thermoforming; this temperature is positioned on the temperature of fusion of the metal of supercoat, there is so-called " embrittlement of liquefaction metal " risk thus.When the liquid metal that is fused into of coating penetrates in moulding process in the breach that each flat steel product surface is formed, the embrittlement of generation steel.Liquid metal arrives steel base and crystal boundary there collects the maximum pull and pressure that reduction thus can bear.
The danger of the liquefaction metal embrittlement of the flat steel product be made up containing manganese steel of higher soundness and high soundness is verified is crucial especially.This kind of steel only has limited ductility so trend towards forming the crack near surface, close crystal boundary in its deformation process.
By known in DE-OS1813808, erosion resistance and the oxidation-resistance of steel plate are improved by Nitrizing Treatment, by this Nitrizing Treatment produce one near surface, the marginal layer with the nitrogen content of raising compared with the kernel area of steel plate of thick 2.5-19 μm.Nitrided case has good adhesivity.
Known further by DE69107931T2, by carburizing treatment or Nitrizing Treatment can be made up of soft steel, the region near surface of flat steel product that manufactures for motorcar body produces higher carbon content or nitrogen content, is used for improving the handlability of relevant flat steel product.
This measure in the prior art not with higher soundness or high soundness, the steel of the Fe content with at least 0.4 % by weight links together, wherein be positioned at 0.4-0.6 % by weight according to the typical Fe content of the steel of processing of the present invention, be positioned at 0.6-3.0 % by weight scope especially.
Be typically more than 0.06 % by weight according to the carbon content of the flat steel product of processing of the present invention and be less than 0.8 % by weight, being less than 0.45 % by weight especially.
In order to adjust every character of the steel according to processing of the present invention, the Ti that it can be made to contain reach 0.2 % by weight, the B reaching 0.005 % by weight, reach 0.5 % by weight Cr, reach the V of 0.1 % by weight or reach the Nb of 0.03 % by weight.
The prerequisite of nitrogenize or inner nitriding has infiltrative nitrogen.When nitrogen is in original position (statunascendi), this precondition is met.
Usually, Nitrizing Treatment passes through at the H containing ammonia
2-N
2each flat steel product is made to have annealed in-annealing atmosphere.Here ammonia and nitrogen are as the donor of nitrogen.Ammonia air pressure and higher than the temperature of 400 DEG C under split into the nitrogen and hydrogen that double its volume.The decomposition of nitrogen can be described by following reaction equation:
2NH
3->2[N]+3H
2
Summary of the invention
The object of the invention is under the background of aforementioned prior art, a kind of method be provided, allow in an economical manner, the crack risk of metal inducement is reduced to minimum while manufacture the steel components of high soundness.
This object realizes thus according to the present invention, that is, in the steel components process manufacturing high soundness, implement the algorithm that claim 1 discloses.
The design with advantage of the present invention provides in the dependent claims of each independent claim, and sets forth general invention theory with details below.
According to the method for steel components for the manufacture of having metals against corrosion coating of the present invention, by this idea, before thermoforming is carried out to flat steel product, implementing Nitrizing Treatment on its surface, in flat steel product, manufactured the marginal layer of fine structure by this process.On the one hand, this marginal layer is the shaping character that thermoforming improves the steel product of surface grinding.
On the other hand, verified, method according to the present invention, at the nitriding fringe region of flat steel product, is unexpectedly of value to the metal embrittlement preventing the meticulous sheet material of steel in thermoforming process.Nitriding district causes crystal boundary face/phase interface (Phasengranzflaechen) significantly improving in thermoforming process, and the crack problem caused by plating filmed metals material infiltration steel base has been resisted in this raising.A uncommon high iron infiltration is there is in this external coating.Consequently, in the treating processes particularly based on the coating of zinc, coating is more stable in calorifics.
In order to utilize the Beneficial Effect according to marginal layer nitriding of the invention process of aforementioned summary, method according to the present invention comprises following treatment step:
-preparation one piece of flat steel product be formed from steel, it has the Fe content of at least 0.4 % by weight.Said flat steel product refers to steel disc, steel band, steel plate or similar-type products herein.Such flat steel product can process in the manner of the present invention in hot rolling or Cold Rolled Strip.Also possibility, different steel plate combination is formed a flat steel product, next this flat steel product is processing according in mode of the present invention, and its light plate is made up of the steel with the type that claim 1 provides.
-flat steel product is annealed in continuous oven, and annealing atmosphere contains the H reaching 25 volume %
2, 0.1-10 volume % NH
3, H
2the N of O and surplus
2and limiting unavoidable impurity due to technical qualification, this annealing atmosphere has the dew point between-50 DEG C and-5 DEG C.Holding temperature is 400-1000 DEG C, and flat steel product maintains 5-600 second under this holding temperature.Eventually through this nitriding-anneal to exist on flat steel product surface thickness be 5-200 μm, the ductile nitrided case of the free surface that is limited to flat steel product, the grain-size of this nitrided case is less than the grain-size being positioned at inner nuclear layer inner, that covered by marginal layer, that be made up of the basic material of flat steel product.
-after generation nitrided case, the flat steel product of annealing in the foregoing manner is through coat of metal coating.Present invention utilizes such understanding herein, the risk of liquefaction metal embrittlement can reduce thus, namely, can be changed by the neighbouring surface region on purpose adjusting flat steel product for the resistless temperature range of liquefaction metal embrittlement, thus make this temperature range and the typical temperature range of thermoforming is not overlapped.
-be divided into sheet material by the flat steel product of coat of metal coating.
If two or more steps of-shaping needs, sheet material can premolding alternatively in this step.Premolding can in so far, and after premolding, the shape of sheet material is almost equal to the net shape of part completely.Typically, be preformed on one block of sheet material that is cold or that be heated to lower than half heat of austenitizing temperature and carry out.What only completed by thermoforming one step shapingly can not use premolding.
-austenitizing temperature of 780-950 DEG C is heated to for the sheet material of thermoforming.
-then by heating after plate thermal forming be final steel components.
-then the steel components obtained is cooled, by austenitizing temperature, carry out accelerating cooling herein.The cooling of steel components is carried out like this, thus forms quenching structure in flat steel product.
Thermoforming and quenching can complete in same step.In this case, thermoforming and quenching common in an instrument step carry out.In contrast, algorithm " shaping " and " generating modulation tissue or quenching structure " is separately carried out in the process of dual-step type.
Surprisingly, utilize the annealing conditions provided according to the present invention, even if also desired depth of nitration can be reached in a short period of time.Advantage be in the method in accordance with the invention, carry out present method with a kind of very economical mode application continuous oven.This achieve, methods combining according to the present invention to premised on High Speed Transfer tape speed, in the manufacturing processed of carrying out continuously, such as, in flame coating apparatus, steel band is heat-treated and hot dip process corrosion-resistant coating in continuous print runs.
The iron surface existed in reaction chamber is conducive to decomposition course in catalysis.In the moment that nitrogen-atoms is separated, a part of nitrogen-atoms penetrates in iron material.
The transfer of nitrogen occurs in several steps:
● transfer to workpiece surface
● be adsorbed on surface
● impermeable surface (absorption)
● penetrate into inside workpiece
Due to the nitrogen solubility improved in austenite, it is practical for carrying out two-phase thermal treatment (namely at two phase region α/γ-Fe).No matter ensuing coat of metal coating is carried out continuously or carries out piece by piece, usually, in practice in given circumstances can like this with the effect of the method optimizing Nitrizing Treatment of economy and environmental protection especially, that is, wherein one that at least observes following condition:
The H of-annealing atmosphere
2content is no more than 10 volume %,
The NH of-annealing atmosphere
3content is no more than 5 volume %,
The dew point of-annealing atmosphere at-40 DEG C to-15 DEG C,
-annealing temperature at 680 DEG C to 840 DEG C,
-annealing was held time as 30-120 second.
Effect of the present invention is played a decisive role, in anneal according to the present invention, nitriding marginal layer is adjusted, make its grain-size be far smaller than the inner nuclear layer grain-size of not carrying out nitriding in annealing process of flat steel product.Actual test provides, according to the grain-size intrinsic numeric of the DINENISO643 nitrided case grain-size intrinsic numeric extremely when young 2 than the basic material (inner nuclear layer) of the flat steel product through annealing before sheet material heating and thermoforming.
In the method according to the invention nitriding marginal layer is on purpose adjusted.The thickness of this fine structure, the same just nitrided case of partial, re-crystallization is determined by the nitriding hardening thickness drawn according to DIN50190-3.Nitriding hardening thickness is herein the distance between surface to steel base, and in base steel bottom, hardness corresponds to the core hardness of+50HV.Such hardness is adjusted, the hardness height at least 25% of this hardness ratio kernel area, i.e. HV(nitriding by this way in the marginal layer region through nitriding, close surface of flat steel product)/HV (kernel area) >=1.25.
Typically, in the flat steel product according to process of the present invention, the thickness of nitriding marginal layer is after the annealing process greater than 5 μm and is less than 200 μm.
The feature that the present invention has the design of advantage in practice is especially, the flat steel product coating with coat of metal is undertaken by hot dip process coating, and this hot dip process coating is carried out continuously continuing in algorithm after an annealing treatment.In this case, the anneal of carrying out according to the present invention with for ensuing surface grinding and carry out, the surface modulation of being undertaken by the annealing gas-metal-reaction of out-phase carried out simultaneously.
What have advantage especially is, method according to the present invention is carried out in flame coating apparatus, because anneal in this case can comprise the edge nitriding of ultimate principle, surface modulation and recrystallization, and ensuing hot dip process can after an annealing treatment continuously online (inline) carry out.At this, can consider in principle, make containing NH
3gas flow through the whole length of the stove that flat steel product is passed.In order to not make whole parts of continuous oven all be in nitriding gas, advantageously, stove part is separated with stove other parts, and containing NH
3gas only air inlet impact is carried out to this isolated part.
In order to ensure the flat steel product after annealing the hot dip process situation carried out as flame coating under the steel base coating adherence optimized, the surface oxidation of flat steel product can be carried out before flame coating.
In the surface grinding process of carrying out preferably by hot dip process of flat steel product constructed in accordance, can introduce known coat system in steel base, this system is made up of Zn, Al, Zn-Al, Zn-Mg, Zn-Ni, Zn-Fe, Al-Mg, Al-Si, Zn-Al-Mg or Zn-Al-Si.Can step be heat-treated after hot dip process, be formed in a particular manner to make coat of metal.If there is demand, after hot dip process, infiltration annealing can also be carried out continuously, such as zinc coating anneal.
The substituting or supplementing of the hot dip process carried out as online (inline), flat steel product (mode according to the present invention forms the nitrided case of a fine structure in continuous annealing in this flat steel product) can have a metal, metal-inorganic or metal-organically coating, such as to be separated out by PVD by Zn coating, ZnNi coating or ZnFe coating in this coating or CVD separates out or carry out electrolytically coating by the coating process of other metals-inorganic or metal-organically.
In order to optimize mechanical properties further, a Wetted constructures can be carried out in a usual manner after anneal according to the present invention.
Then there is 800-2000MPa, the particularly tensile strength of 900-2000MPa through the part obtained that quenches by the flat steel product after processing according to the present invention through thermoforming.
Nitriding coating constructed in accordance allow for, and flat steel product according to the present invention is successfully heated to austenitizing temperature, has complete austenitic structure in the flat steel product of this temperature.If flat steel product is provided with metallic coating, the fusing point of this coating, less than or equal to Heating temperature, still makes embrittlement risk drop in so high Heating temperature minimum.The fine grain of the marginal layer realized by nitriding of the present invention is avoided the formation in crack and ensure that, coating metal can not infiltrate in the basic material of kernel area or steel base.
By fine structure constructed in accordance, to avoid in the thermoforming process of carrying out under preferably directly namely not having the preformed situation of sheet material through the nitrided case of nitriding, by metallic coating particularly spelter coating, or permeated the solid metal embrittlement entering into crystal boundary caused by coating metal.Similarly, method according to the present invention caused by nitriding, avoid being formed and inhibit liquid metal embrittlement of weld seam in view of the ratio of iron/coating metal has being formed of the coating of advantage.
Accompanying drawing explanation
The present invention is set forth further below according to embodiment.In figure:
Fig. 1: according to the vertical abrasive disc of the steel sample through nitriding annealing of the present invention;
Fig. 2: without annealing, the vertical abrasive disc that rolls hard comparative sample;
The GDOES-depth curve of the nitrogen content of the sample shown in Fig. 3: Fig. 1 and Fig. 2;
Fig. 4: the vertical abrasive disc of the stretch zones of the steel components that steel sample is as shown in Figure 1 formed;
Fig. 5: the vertical abrasive disc rolling the stretch zones of the steel components that hard steel sample is formed as shown in Figure 2.
Embodiment
In order to verify the effect that can reach according to method of the present invention, respectively manufacture a multi-phase Steels " MP " and be generally used for thermoforming steel " WU " roll hard cold belt sample.The composition of steel MP and WU provides in table 1.
Two samples be made up of steel MP and WU are put in the continuous oven for marginal layer nitriding and are carried out according to anneal of the present invention.Annealing parameter used herein provides in table 2.
For the ease of comparing, the sample that two are made up of steel MP and WU being put in continuous oven and carries out conventional anneal, to prepare carried out step as being generally galvanizing.
Illustrate in Fig. 1 and to be made up of steel WU and to carry out the microgram of the sample after anneal according to the present invention.Clearly can find out, as the result for the treatment of in accordance with the present invention step, adjust the structural region (nitriding region N) of a fine structure near surface
In contrast, the microgram be made up through cold rolling sample of steel WU does not equally have such nitriding region N(Fig. 2).
In addition the GDOES being made up the nitriding content through anneal according to the present invention and cold rolling sample of steel WU is measured.GDOES(" GDOES "=GlowDischargeOpticalEmissionSpectrometer) method of masurement refers to the standard method obtaining fast coating concentration situation.It is by Hubert
vDI-VerlagGmbH in Dusseldorf, 1993 publish VDI-dictionary " Werkstofftechnik " (material technology) in have described by.
The result that GDOES measures provides in figure 3, and wherein dotted line shows the nitrogen distribution of rolling hard sample, and solid line shows and distributes according to the nitrogen of the sample of process of the present invention.
Fig. 3 also clearly shows, and have the nitrided case N of obvious nitrogenize according to the sample of process of the present invention, its thickness is about 20 μm.
In view of micro-hardness measurement can prove, be made up of steel WU, through having the microhardness of 340HV according to the nitrided case N of the nitrogenize in heat treated sample of the present invention, do not there is through kernel area (basic material) K of nitrogenize the hardness of 180HV.The hardness of the nitrided case N of nitrogenize
with the hardness of kernel area K
ratio
be about 1.9, thus much larger than this ratio 1.25 provided in advance according to the present invention.
Being the surface grinding of sample after annealing, is that the zinc layers of 10 μm is electrolytically coated on sample by thickness in this process.
Next by the sample be made up of steel WU by so-called single step or directly thermoforming process is shaping and compacting hardens into steel components.Then sample is thermoformed into part for motorcar body through the austenitizing temperature that the austenitizing time of 6 minutes is heated to 880 DEG C in hot compression deformation instrument for this reason.
The part obtained after thermoforming is cooling so rapidly in a known way, thus forms quenching structure.
By the contrast of Figure 4 and 5 clearly, show no sign of cracking initiation in the stretch zones of part made according to the method for the present invention, and there is the crack between crystal significantly in the part of traditional way manufacture.
The annealed process of being made up of steel MP, sample that is zinc-plated and distortion can provide similar result for according to the sample after the anneal of of the present invention and traditional way.
Method according to the present invention improves the processability of the flat steel product of surface grinding in thermoforming.For this reason before surface grinding, with carry out continuously or the mode of carrying out piece by piece by annealing process on purpose gas-metal-reaction manufacture edge nitrogenize, consequently adjust the nitrogenous nitrided case N of a fine structure.Marginal layer N mono-aspect of this nitrogenize improves the iron infiltration in coating, and prevents labilizer " coating metal ", particularly zinc to be delivered to crystallization boundary in the annealing process of carrying out before thermoforming.
The part that final acquisition is such, its steel base does not have crack completely.
Remaining iron and inevasible impurity
Form 1
Form 2
Claims (14)
1. be coated with a method for the steel components of metals against corrosion supercoat by flat steel product manufacture, described flat steel product has the Mn content of at least 0.4 % by weight, and described method comprises following steps:
-prepare described flat steel product;
-described flat steel product is annealed in continuous oven;
-annealing atmosphere contains the H reaching 25 volume %
2, 0.1-10 volume % NH
3, described annealing atmosphere is also containing H
2the N of O and surplus
2and limit unavoidable impurity due to technical qualification, described annealing atmosphere has the dew point between-50 DEG C and-5 DEG C,
-holding temperature is 400-1100 DEG C
-hold time as 5-600 second,
-through the described flat steel product of anneal, there is the nitrided case (N) that thickness is 5-200 μm, the grain-size of described nitrided case is less than the grain-size of the inner nuclear layer (K) being positioned at described flat steel product inside;
-with coat of metal, coating is carried out to described annealed flat steel product;
-be partitioned into sheet material by described flat steel product;
-described sheet material carries out premolding;
-described sheet material is heated to the austenitizing temperature of 780-950 DEG C,
-by through heating plate thermal forming be steel components,
-described steel components carries out accelerating cooling like this, thus forms quenching structure in described flat steel product,
It is characterized in that, the nitrided case (N) of the described flat steel product through annealing before sheet material heating and thermoforming draw the grain-size intrinsic numeric extremely when young 2 of grain-size intrinsic numeric than inner nuclear layer (K) according to DINENISO643.
2. method according to claim 1, is characterized in that, the H of described annealing atmosphere
2content is up to 10 volume %.
3. method according to claim 1, is characterized in that, the NH of described annealing atmosphere
3content is up to 5 volume %.
4. method according to claim 1, is characterized in that, the dew point of described annealing atmosphere is-40 DEG C to-15 DEG C.
5. method according to claim 1, is characterized in that, the holding temperature of described annealing is 680-840 DEG C.
6. method according to claim 1, is characterized in that, holding time as 30-120 second of described annealing.
7. method according to claim 1, is characterized in that, undertaken by hot dip process the coating that described flat steel product is carried out with coat of metal, described hot dip process is carried out in the workflow of carrying out continuously, after the annealing process.
8. method according to claim 7, is characterized in that, carries out the surface oxidation of described flat steel product before described hot dip process.
9. method according to claim 7, is characterized in that, described flat steel product carries out infiltration annealing continuously after described hot dip process process.
10. method according to claim 1, is characterized in that, separates out described flat steel product metallizing supercoat, metal-protective organic or metal-inorganic supercoat by electrolytic coating or by PVD precipitation or CVD.
11. methods according to claim 10, is characterized in that, described metal protection coating is Zn coating, Al coating, Zn-Al coating, Zn-Mg coating, Zn-Ni coating, Al-Mg coating, Al-Si coating, Zn-Al-Mg coating or Zn-Al-Mg-Si coating.
12. methods according to claim 1, is characterized in that, in described heat-processed, adjust the austenitizing temperature obtained is 860-950 DEG C.
13. methods according to claim 1, is characterized in that, thermoforming and the process of cooling of the described part through thermoforming acquisition are carried out in one step.
14. methods according to any one of aforementioned claim, is characterized in that, carry out sandblasting to the part of described acquisition.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010017354.1 | 2010-06-14 | ||
| DE102010017354A DE102010017354A1 (en) | 2010-06-14 | 2010-06-14 | Process for producing a hot-formed and hardened steel component coated with a metallic anti-corrosion coating from a flat steel product |
| PCT/EP2011/059808 WO2011157690A1 (en) | 2010-06-14 | 2011-06-14 | Method for producing a hot-formed and heat-treated steel component that is coated with a metal anti-corrosion coating from a sheet steel product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102985570A CN102985570A (en) | 2013-03-20 |
| CN102985570B true CN102985570B (en) | 2016-03-30 |
Family
ID=44626931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180029367.0A Expired - Fee Related CN102985570B (en) | 2010-06-14 | 2011-06-14 | By flat steel product manufacture through thermoforming and quenching, the method for the steel components with metals against corrosion coating |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20130206284A1 (en) |
| EP (1) | EP2580358A1 (en) |
| JP (1) | JP2013534971A (en) |
| KR (1) | KR20130085410A (en) |
| CN (1) | CN102985570B (en) |
| BR (1) | BR112012030991A2 (en) |
| DE (1) | DE102010017354A1 (en) |
| WO (1) | WO2011157690A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009044861B3 (en) * | 2009-12-10 | 2011-06-22 | ThyssenKrupp Steel Europe AG, 47166 | Process for producing a readily deformable flat steel product, flat steel product and method for producing a component from such a flat steel product |
| DE102011001140A1 (en) * | 2011-03-08 | 2012-09-13 | Thyssenkrupp Steel Europe Ag | Flat steel product, method for producing a flat steel product and method for producing a component |
| MX358552B (en) * | 2012-04-17 | 2018-08-23 | Arcelormittal Investigacion Y Desarrollo Sl | Steel sheet provided with a coating offering sacrificial cathodic protection, method for the production of a part using such a sheet, and resulting part. |
| DE102013107100A1 (en) * | 2013-07-05 | 2015-01-08 | Thyssenkrupp Steel Europe Ag | Wear-resistant, at least partially uncoated steel part |
| DE102013107777A1 (en) | 2013-07-22 | 2015-01-22 | Thyssenkrupp Steel Europe Ag | Apparatus for the heat treatment of coated semi-finished steel products |
| EP2848709B1 (en) * | 2013-09-13 | 2020-03-04 | ThyssenKrupp Steel Europe AG | Method for producing a steel component with an anti-corrosive metal coating and steel component |
| PL3204530T3 (en) * | 2014-10-09 | 2019-07-31 | Thyssenkrupp Steel Europe Ag | Cold rolled steel sheet and recrystallisation-annealed steel flat product and method for producing the same |
| KR101693522B1 (en) * | 2014-12-24 | 2017-01-06 | 주식회사 포스코 | Grain oriented electrical steel having excellent magnetic properties and method for manufacturing the same |
| DE102015005625A1 (en) | 2015-04-30 | 2016-11-03 | Liebherr-Aerospace Lindenberg Gmbh | Multilayer coating |
| KR102075182B1 (en) * | 2015-12-24 | 2020-02-10 | 주식회사 포스코 | Hot dip zinc alloy plated high strength steel material having excellent plating property and method for manufacturing same |
| DE102016104800A1 (en) * | 2016-03-15 | 2017-09-21 | Salzgitter Flachstahl Gmbh | Method for producing a hot-formed steel component and a hot-formed steel component |
| CN106011652B (en) * | 2016-06-28 | 2017-12-26 | 宝山钢铁股份有限公司 | A kind of excellent cold rolling low-density steel plate of phosphorus characteristic and its manufacture method |
| DE102018222063A1 (en) * | 2018-12-18 | 2020-06-18 | Volkswagen Aktiengesellschaft | Steel substrate for the production of a hot-formed and press-hardened sheet steel component as well as a hot-forming process |
| KR20220016491A (en) * | 2019-06-03 | 2022-02-09 | 티센크루프 스틸 유럽 악티엔게젤샤프트 | Method for manufacturing sheet metal parts from sheet metal products with anti-corrosion coatings |
| DE102019130381A1 (en) * | 2019-11-11 | 2021-05-12 | Benteler Automobiltechnik Gmbh | Motor vehicle component with increased strength |
| CN115287444B (en) * | 2022-09-08 | 2024-02-06 | 西部超导材料科技股份有限公司 | Bi-2212 superconducting wire heat treatment method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1813808A1 (en) * | 1967-12-11 | 1969-07-10 | United States Steel Corp | Process and manufacture of nitrided strip steel |
| CN101506403A (en) * | 2006-08-22 | 2009-08-12 | 蒂森克虏伯钢铁股份公司 | Process for coating a hot- or cold-rolled steel strip containing 6 - 30% by weight of Mn with a metallic protective layer |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63166953A (en) * | 1986-12-27 | 1988-07-11 | Kawatetsu Kohan Kk | Blasting treatment for hot dip galvanized-type steel sheet |
| EP0421087B1 (en) * | 1989-08-09 | 1994-11-30 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Method of manufacturing a steel sheet |
| KR940003784B1 (en) | 1990-07-31 | 1994-05-03 | 가와사키 세이데츠 가부시키가이샤 | Continuous annealing line having carburizing/nitriding furnace |
| JP3296599B2 (en) * | 1992-09-21 | 2002-07-02 | 川崎製鉄株式会社 | Thin steel sheet for press working with high tensile rigidity and excellent press formability |
| JPH07278775A (en) * | 1994-04-05 | 1995-10-24 | Nippon Steel Corp | Production of hot dip aluminum coated steel sheet for deep drawing excellent thermal discoloration resistance |
| JP3970323B2 (en) * | 1996-06-05 | 2007-09-05 | デュラセル、インコーポレーテッド | Improved production of lithiated lithium manganese oxide spinel. |
| JP3777049B2 (en) * | 1998-04-30 | 2006-05-24 | 新日本製鐵株式会社 | Manufacturing method of BH cold-rolled steel sheet for deep drawing excellent in dent resistance and surface strain resistance |
| DE10039375A1 (en) * | 2000-08-11 | 2002-03-28 | Fraunhofer Ges Forschung | Corrosion-protected steel sheet and process for its manufacture |
| EP1403388A1 (en) * | 2002-09-26 | 2004-03-31 | ThyssenKrupp Stahl AG | Process for making products by high temperature deformation |
| ATE478971T1 (en) * | 2003-07-29 | 2010-09-15 | Voestalpine Stahl Gmbh | METHOD FOR PRODUCING HARDENED COMPONENTS FROM SHEET STEEL |
| JP4975245B2 (en) | 2004-10-06 | 2012-07-11 | 新日本製鐵株式会社 | Manufacturing method of high strength parts |
| RU2387734C2 (en) * | 2005-10-14 | 2010-04-27 | Ниппон Стил Корпорейшн | Method of continuous annealing and application of coating by means of hot dipping method, and system for continuous annealing and application of coating by means of hot dipping method of silica-bearing steel plate |
| JP4762077B2 (en) * | 2006-08-09 | 2011-08-31 | 日本パーカライジング株式会社 | Hardening method of steel member, hardened steel member and hardened surface protective agent |
| EP2009128A1 (en) * | 2007-06-29 | 2008-12-31 | ArcelorMittal France | Galvanized or galvannealed silicon steel |
| JP5354156B2 (en) * | 2008-09-03 | 2013-11-27 | Ｊｆｅスチール株式会社 | Method for producing galvannealed steel sheet |
| DE102009053260B4 (en) * | 2009-11-05 | 2011-09-01 | Salzgitter Flachstahl Gmbh | Process for coating steel strips and coated steel strip |
-
2010
- 2010-06-14 DE DE102010017354A patent/DE102010017354A1/en not_active Withdrawn
-
2011
- 2011-06-14 JP JP2013514682A patent/JP2013534971A/en not_active Withdrawn
- 2011-06-14 EP EP11724650.4A patent/EP2580358A1/en not_active Withdrawn
- 2011-06-14 KR KR1020137000998A patent/KR20130085410A/en not_active Application Discontinuation
- 2011-06-14 US US13/703,707 patent/US20130206284A1/en not_active Abandoned
- 2011-06-14 BR BR112012030991A patent/BR112012030991A2/en not_active IP Right Cessation
- 2011-06-14 CN CN201180029367.0A patent/CN102985570B/en not_active Expired - Fee Related
- 2011-06-14 WO PCT/EP2011/059808 patent/WO2011157690A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1813808A1 (en) * | 1967-12-11 | 1969-07-10 | United States Steel Corp | Process and manufacture of nitrided strip steel |
| CN101506403A (en) * | 2006-08-22 | 2009-08-12 | 蒂森克虏伯钢铁股份公司 | Process for coating a hot- or cold-rolled steel strip containing 6 - 30% by weight of Mn with a metallic protective layer |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112012030991A2 (en) | 2016-11-08 |
| EP2580358A1 (en) | 2013-04-17 |
| WO2011157690A1 (en) | 2011-12-22 |
| DE102010017354A9 (en) | 2012-04-05 |
| DE102010017354A1 (en) | 2011-12-15 |
| US20130206284A1 (en) | 2013-08-15 |
| KR20130085410A (en) | 2013-07-29 |
| CN102985570A (en) | 2013-03-20 |
| JP2013534971A (en) | 2013-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102985570B (en) | By flat steel product manufacture through thermoforming and quenching, the method for the steel components with metals against corrosion coating | |
| CN114990463B (en) | Hot stamping forming member, precoated steel sheet for hot stamping forming, and hot stamping forming process | |
| JP6698128B2 (en) | Method for producing a steel plate for press hardening, and parts obtained by the method | |
| CN107127238B (en) | Hot stamping forming method for zinc-based plated steel plate or steel strip | |
| EP3366797B1 (en) | Method for producing a hot press member | |
| CN104846274B (en) | Hot press-formed use steel plate, hot press-formed technique and hot press-formed component | |
| CN107709598B (en) | High-strength cold-rolled steel sheet, high-strength hot-dip galvanized steel sheet, and high-strength alloyed hot-dip galvanized steel sheet | |
| EP2813595B1 (en) | High-strength cold-rolled steel sheet and process for manufacturing same | |
| CN109371325A (en) | A kind of electrogalvanized thermoforming steel plate that cold-bending property is excellent or steel band and its manufacturing method | |
| JP5387720B2 (en) | Hot-pressed steel plate member, hot-pressed steel plate member, and method for producing them | |
| CN110959048B (en) | Hot-dip galvanized steel sheet | |
| CN105829561B (en) | Hot rolled sheet component, its manufacturing method and hot pressing steel plate | |
| CN104736736B (en) | High strength cold rolled steel plate and its manufacture method | |
| CN110475891A (en) | Hot pressed member and its manufacturing method | |
| CN107109553A (en) | High intensity hot press parts and its manufacture method | |
| CN110177894A (en) | High-strength steel sheet | |
| US20190127821A1 (en) | Ultra high strength multi-phase steel and method for producing a cold-rolled steel strip therefrom | |
| CN103717773A (en) | High-strength galvanized steel sheet having superior bendability and method for producing same | |
| US20100326570A1 (en) | High-strength quenched formed body with good corrosion resistance and process for producing the same | |
| CN103614640B (en) | A kind of non-coating hot press-formed steel of resistance to high temperature oxidation | |
| US20190360081A1 (en) | High-strength steel sheet and method for producing the same | |
| CN103958713B (en) | Nitrogenize hot-rolled steel sheet, nitrogenize cold-rolled steel sheet and their manufacture method and use their trolley part | |
| CN108138290A (en) | Drop stamping component and its manufacturing method | |
| KR101677398B1 (en) | Steels for hot forming and method of manufacturion component using thereof | |
| US20200263283A1 (en) | Ultrahigh strength multiphase steel and method for producing a steel strip from said multiphase steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20210614 |