TW202120697A - Thermoformed component having excellent coating adhesion, and manufacturing method therefor - Google Patents
Thermoformed component having excellent coating adhesion, and manufacturing method therefor Download PDFInfo
- Publication number
- TW202120697A TW202120697A TW109140496A TW109140496A TW202120697A TW 202120697 A TW202120697 A TW 202120697A TW 109140496 A TW109140496 A TW 109140496A TW 109140496 A TW109140496 A TW 109140496A TW 202120697 A TW202120697 A TW 202120697A
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- TW
- Taiwan
- Prior art keywords
- paint film
- film adhesion
- thermoformed part
- layer
- excellent paint
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 239000011248 coating agent Substances 0.000 title abstract description 15
- 238000000576 coating method Methods 0.000 title abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 82
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 54
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000012546 transfer Methods 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims description 64
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 43
- 229910052742 iron Inorganic materials 0.000 claims description 26
- 238000009792 diffusion process Methods 0.000 claims description 25
- 239000012535 impurity Substances 0.000 claims description 25
- 230000003746 surface roughness Effects 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 22
- 238000007747 plating Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 19
- 229910052725 zinc Inorganic materials 0.000 claims description 12
- 238000009499 grossing Methods 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910015372 FeAl Inorganic materials 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052729 chemical element Inorganic materials 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 42
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 229910000838 Al alloy Inorganic materials 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 239000011701 zinc Substances 0.000 description 9
- 230000002787 reinforcement Effects 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001962 electrophoresis Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
Classifications
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- 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
- C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- 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
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- 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
- C21D8/0242—Flattening; Dressing; Flexing
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- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- 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
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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- 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
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- 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
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- 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
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- 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
- C23C2/405—Plates of specific length
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- 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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
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- 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
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- 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
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- 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
- C21D2251/00—Treating composite or clad material
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- 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
- C21D2261/00—Machining or cutting being involved
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Coating With Molten Metal (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Table Devices Or Equipment (AREA)
Abstract
Description
本發明涉及一種材料及其製造方法，尤其涉及一種熱成形材料及其製造方法。The invention relates to a material and a manufacturing method thereof, in particular to a thermoformed material and a manufacturing method thereof.
近年來，熱成形部件在汽車工業中的應用變得很重要，特別是在汽車的安全結構件方面，在一些高強度，形狀複雜的零件上具有不可替代的優勢。用於熱成形部件的材料分為帶塗覆層和不帶塗覆層的，塗覆層的主要目的是鋼板在熱衝壓成形過程中，防止鋼板表面氧化。成形後的部件可以直接進行塗裝及焊接使用，目前不帶塗覆層的材料在熱成形後必須進行表面噴丸處理以去掉表面產生的氧化物層，否則影響後續的零件塗裝及焊接。熱鍍鋁塗覆層的材料在熱成形後表面無法進行正常磷化，電泳後的漆膜附著力完全依靠塗層表面形貌來保證。現有材料在使用過程中會存在漆膜附著力無法滿足使用的問題。In recent years, the application of thermoformed parts in the automotive industry has become very important, especially in terms of automotive safety structural parts, which have irreplaceable advantages in some high-strength, complex-shaped parts. The materials used for hot forming parts are divided into coated and uncoated materials. The main purpose of the coating is to prevent oxidation of the steel sheet surface during the hot stamping process. The formed parts can be directly painted and welded for use. At present, materials without coating layers must be surface shot peened after hot forming to remove the oxide layer generated on the surface, otherwise it will affect the subsequent part coating and welding. The material of the hot-dip aluminum coating layer cannot be normally phosphated after hot forming, and the adhesion of the paint film after electrophoresis is completely guaranteed by the surface morphology of the coating. Existing materials have the problem that the paint film adhesion cannot satisfy the use during the use process.
例如：公開號為CN104651590A，公開日為2015年5月27日，名稱為“衝壓產品的製造方法及由其製造的衝壓產品”的中國專利文獻公開了一種鋁或鋁合金塗覆的熱成形材料及製造方法，該方法針對性控制了塗覆層的厚度及五層結構，從而保證熱成形件的焊接性能。For example: the publication number is CN104651590A, the publication date is May 27, 2015, and the Chinese patent document titled "Manufacturing method of stamping products and stamping products manufactured therefrom" discloses an aluminum or aluminum alloy coated hot forming material And the manufacturing method, the method specifically controls the thickness of the coating layer and the five-layer structure, so as to ensure the welding performance of the hot formed part.
又例如：公開號為CN108588612A，公開日為2018年9月28日，名稱為“熱衝壓成形構件、熱衝壓成形用預塗鍍鋼板及熱衝壓成形工藝”的中國專利文獻公開了一種熱衝壓成形構件。在該專利文獻所公開的技術方案中，降低了塗層厚度的同時，也降低了塗層的保護作用，由此，熱成形技術的波動對構件的表面性能很容易造成影響，從而影響後續的使用性能。Another example: the publication number is CN108588612A, the publication date is September 28, 2018, and the Chinese patent document entitled "Hot stamping forming components, pre-coated steel sheets for hot stamping forming and hot stamping forming process" discloses a hot stamping forming process. member. In the technical solution disclosed in the patent document, the thickness of the coating is reduced, and the protective effect of the coating is also reduced. Therefore, the fluctuation of the thermoforming technology can easily affect the surface properties of the component, thereby affecting the subsequent Use performance.
再例如：公開號為CN101583486，公開日為2009年11月18日，名稱為“塗覆的鋼帶材、其製備方法、其使用方法、由其製備的衝壓坯料、由其製備的衝壓產品和含有這樣的衝壓產品的製品”的中國專利文獻公開了一種塗覆鋼帶材的熱衝壓產品及方法。在該專利文獻所公開的技術方案中，其包括加熱、轉移及冷卻，而未涉及熱衝壓過程，由此會造成衝壓產品品質不穩定，如緊縮、開裂等，對加熱過程中爐膛氣氛不控制，導致加熱過程中爐內氣氛發生變化，尤其是氧氣含量發生較大變化，帶來產品外觀顏色很容易發生變化，實際生產發現相同來料在同一技術下，所得衝壓產品外觀顏色呈現較大不同。Another example: the publication number is CN101583486, the publication date is November 18, 2009, and the name is "coated steel strip, its preparation method, its use method, the stamping blank prepared therefrom, the stamping product prepared therefrom and The Chinese Patent Document "Products Containing Such Stamped Products" discloses a hot stamped product and method for coating steel strips. In the technical solution disclosed in this patent document, it includes heating, transfer and cooling, but does not involve the hot stamping process, which will cause the quality of stamped products to be unstable, such as shrinkage, cracking, etc., and the furnace atmosphere during the heating process is not controlled. , Resulting in changes in the atmosphere in the furnace during the heating process, especially the large changes in oxygen content, which makes the appearance and color of the product easy to change. In actual production, it is found that the same incoming material and the same technology, the appearance and color of the stamping products are quite different .
本發明的目的之一在於提供一種具有優異漆膜附著力的熱成形部件，該熱成形部件具有較好的塗裝性、好的漆膜附著力以及較好的耐蝕性，非常適合用於汽車零部件，例如：前、後門左右防撞杆/梁、前、後保險槓、A柱加強板、B柱加強板、地板中通道等。One of the objectives of the present invention is to provide a thermoformed part with excellent paint film adhesion. The thermoformed part has good paintability, good paint film adhesion and good corrosion resistance, and is very suitable for use in automobiles. Components, such as: front and rear doors, left and right anti-collision bars/beams, front and rear bumpers, A-pillar reinforcement plates, B-pillar reinforcement plates, and floor channels, etc.
為了實現上述目的，本發明提出了一種具有優異漆膜附著力的熱成形部件，其包括基材層以及鍍覆在基材層的至少一個表面上的鍍鋁層，熱成形部件表面的平均粗糙度Ra為1.0~3.0μm，峰高與峰谷的高度Rt為8~30μm，粗糙度峰計數Rpc≥50。In order to achieve the above object, the present invention proposes a thermoformed part with excellent paint film adhesion, which includes a substrate layer and an aluminum-plated layer plated on at least one surface of the substrate layer. The average roughness of the surface of the thermoformed part is The degree Ra is 1.0~3.0μm, the peak height and the height of the peak valley Rt are 8~30μm, and the roughness peak count Rpc≥50.
在本發明所述的技術方案中，鍍鋁層包括鋁相和鋁矽相，在加熱過程中，鍍鋁層中的鋁向基材層擴散，同時基材層的鐵向鍍鋁層擴散形成Al8 Fe2 Si相，新相形成導致表面粗糙度顯著增加，隨著鐵鋁進一步擴散，進而形成Fe2 Al5 相，表面粗糙度基本維持，最終鍍鋁層中全部形成FeAl合金，表面粗糙度反而略有下降。In the technical scheme of the present invention, the aluminum-plated layer includes aluminum phase and aluminum-silicon phase. During the heating process, the aluminum in the aluminum-plated layer diffuses toward the substrate layer, and at the same time, the iron in the substrate layer diffuses into the aluminum-plated layer. Al 8 Fe 2 Si phase, the formation of a new phase leads to a significant increase in surface roughness. With the further diffusion of iron and aluminum, the Fe 2 Al 5 phase is formed, and the surface roughness is basically maintained. Finally, all FeAl alloys are formed in the aluminum coating, and the surface is rough Instead, the degree has dropped slightly.
熱處理後的熱成形部件表面主要由Fe2 Al5 和FeAl合金組成，同時由於表面氧化產生的矽的氧化物、鋁的氧化物以及鐵的氧化物不能與磷化液發生化學反應，即不能形成正常的磷化膜，因此，熱成形部件的漆膜附著力完全靠表面的凹凸不平結構來保證，即熱成形部件的粗糙度對漆膜附著力有著重要影響。The surface of the hot formed part after heat treatment is mainly composed of Fe 2 Al 5 and FeAl alloy. At the same time, the silicon oxide, aluminum oxide and iron oxide produced by surface oxidation cannot chemically react with the phosphating solution, that is, it cannot be formed. Normal phosphate film, therefore, the paint film adhesion of thermoformed parts is completely guaranteed by the uneven structure of the surface, that is, the roughness of the thermoformed part has an important influence on the paint film adhesion.
鍍鋁層表面粗糙度越大，粗糙度峰計數Rpc值越大，鐵鋁擴散路徑不同，新相形成的快慢不同，從而導致熱處理後的成形件表面粗糙度越大，對漆膜附著力越好。The greater the surface roughness of the aluminized layer, the greater the roughness peak count Rpc value, the different diffusion paths of iron and aluminum, and the different formation speeds of new phases, resulting in the greater the surface roughness of the formed part after heat treatment and the greater the adhesion to the paint film. it is good.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，鍍鋁層包括：與基材層鄰接的擴散層和位於鍍鋁層表面的合金層，其中擴散層的厚度與鍍鋁層總厚度的比值為0.08-0.5。Further, in the thermoformed part with excellent paint film adhesion of the present invention, the aluminized layer includes: a diffusion layer adjacent to the substrate layer and an alloy layer on the surface of the aluminized layer, wherein the thickness of the diffusion layer is equal to The ratio of the total thickness of the aluminized layer is 0.08-0.5.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，擴散層的厚度≤16µm；鍍鋁層總厚度≤60µm。Further, in the thermoformed part with excellent paint film adhesion according to the present invention, the thickness of the diffusion layer is ≤ 16 μm; the total thickness of the aluminum-plated layer is ≤ 60 μm.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，擴散層的厚度為5~16µm；鍍鋁層總厚度20~60µm。Further, in the thermoformed part with excellent paint film adhesion according to the present invention, the thickness of the diffusion layer is 5-16 μm; the total thickness of the aluminized layer is 20-60 μm.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，熱成形部件表面的平均粗糙度Ra為1.5~2.5μm。Further, in the thermoformed part with excellent paint film adhesion of the present invention, the average roughness Ra of the surface of the thermoformed part is 1.5-2.5 μm.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，熱成形部件表面的峰高與峰谷的高度Rt為10~25μm。Further, in the thermoformed part with excellent paint film adhesion according to the present invention, the peak height and the height Rt of the peak and valley on the surface of the thermoformed part are 10-25 μm.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，熱成形部件表面的粗糙度峰計數Rpc為50~250，如80~180。Further, in the thermoformed part with excellent paint film adhesion of the present invention, the surface roughness peak count Rpc of the thermoformed part is 50-250, such as 80-180.
進一步地，本發明所述的具有優異漆膜附著力的熱成形部件的表面含有Fe2 Al5 和FeAl合金。進一步地，本發明所述的具有優異漆膜附著力的熱成形部件的表面還含有矽的氧化物、鋁的氧化物和鐵的氧化物。進一步地，本發明所述的具有優異漆膜附著力的熱成形部件的表面主要由Fe2 Al5 和FeAl合金組成，同時還含有矽的氧化物、鋁的氧化物和鐵的氧化物。而且，本發明所述的具有優異漆膜附著力的熱成形部件的表面中Fe2 Al5 的含量高於40wt%。Further, the surface of the thermoformed part with excellent paint film adhesion according to the present invention contains Fe 2 Al 5 and FeAl alloy. Furthermore, the surface of the thermoformed part with excellent paint film adhesion according to the present invention also contains silicon oxide, aluminum oxide and iron oxide. Furthermore, the surface of the thermoformed part with excellent paint film adhesion of the present invention is mainly composed of Fe 2 Al 5 and FeAl alloy, and also contains silicon oxide, aluminum oxide and iron oxide. Moreover, the Fe 2 Al 5 content on the surface of the thermoformed part with excellent paint film adhesion according to the present invention is higher than 40 wt%.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，鍍鋁層的化學成分重量百分比為：Si：4～14%，Fe：0～4%，Mg：0~10%，Zn：0~20%，餘量為Al及其他不可避免的雜質。進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，鍍鋁層的化學成分重量百分比為：Si：4～14%，Fe：2～4%，Mg：0~10%，Zn：0~20%，餘量為Al及其他不可避免的雜質。Further, in the thermoformed part with excellent paint film adhesion of the present invention, the weight percentage of the chemical composition of the aluminum-plated layer is: Si: 4-14%, Fe: 0-4%, Mg: 0-10 %, Zn: 0-20%, the balance is Al and other unavoidable impurities. Further, in the thermoformed part with excellent paint film adhesion of the present invention, the weight percentage of the chemical composition of the aluminum-plated layer is: Si: 4-14%, Fe: 2-4%, Mg: 0-10 %, Zn: 0-20%, the balance is Al and other unavoidable impurities.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，鍍鋁層的重量平均值為20～120g/m2 每單面。Furthermore, in the thermoformed part with excellent paint film adhesion according to the present invention, the weight average value of the aluminized layer is 20-120 g/m 2 per single side.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，鍍鋁層的重量平均值為30～100g/m2 每單面。Further, in the thermoformed part with excellent paint film adhesion according to the present invention, the weight average value of the aluminized layer is 30-100 g/m 2 per single side.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，基材層的化學成分質量百分比為：Further, in the thermoformed part with excellent paint film adhesion of the present invention, the mass percentage of the chemical composition of the substrate layer is:
C：0.01~0.8%，Si：0.05~1.0%，Mn：0.1~5%，P≤0.3%，S≤0.1%，Al≤0.3%，Ti≤0.5%，B：0.0005~0.1%，Cr：0.01~3%，Nb≤0.5%，V≤0.5%，餘量為Fe及其他不可避免的雜質。C: 0.01~0.8%, Si: 0.05~1.0%, Mn: 0.1~5%, P≤0.3%, S≤0.1%, Al≤0.3%, Ti≤0.5%, B: 0.0005~0.1%, Cr: 0.01~3%, Nb≤0.5%, V≤0.5%, the balance is Fe and other unavoidable impurities.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，基材層的各化學元素質量百分比還滿足下列各項的至少其中之一： C：0.05~0.6%， Si：0.07~0.8%， Mn：0.3~4%， P≤0.2%， S≤0.08%， Al≤0.2%， Ti≤0.4%， B：0.0005~0.08%， Cr：0.01~2%， Nb≤0.3%， V≤0.3%。Further, in the thermoformed part with excellent paint film adhesion of the present invention, the mass percentage of each chemical element of the substrate layer also satisfies at least one of the following items: C: 0.05~0.6%, Si: 0.07~0.8%, Mn: 0.3~4%, P≤0.2%, S≤0.08%, Al≤0.2%, Ti≤0.4%, B: 0.0005~0.08%, Cr: 0.01~2%, Nb≤0.3%, V≤0.3%.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，基材層的各化學元素質量百分比還滿足下列各項的至少其中之一： C：0.15~0.5%， Si：0.1~0.5%， Mn：0.5~3%， P≤0.1%， S≤0.05%， Al≤0.1%， Ti≤0.2%， Cr：0.01~1%。Further, in the thermoformed part with excellent paint film adhesion of the present invention, the mass percentage of each chemical element of the substrate layer also satisfies at least one of the following items: C: 0.15~0.5%, Si: 0.1~0.5%, Mn: 0.5~3%, P≤0.1%, S≤0.05%, Al≤0.1%, Ti≤0.2%, Cr: 0.01~1%.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件的基材層中，Al含量為0.03-0.09％，Ti含量為0.01-0.2％、優選0.01-0.1％。Further, in the substrate layer of the thermoformed part with excellent paint film adhesion according to the present invention, the Al content is 0.03-0.09%, and the Ti content is 0.01-0.2%, preferably 0.01-0.1%.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件的基材層中，Cr含量為0.1-0.8％。Further, in the substrate layer of the thermoformed part with excellent paint film adhesion according to the present invention, the Cr content is 0.1-0.8%.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件的基材層中，含有時，Nb的含量為0.001-0.1％；含有時，V的含量為0.001-0.01％。Further, in the substrate layer of the thermoformed part with excellent paint film adhesion of the present invention, when it is contained, the content of Nb is 0.001-0.1%; when it is contained, the content of V is 0.001-0.01%.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，基材層的化學成分質量百分比為：C：0.02~0.8%，Si：0.05~0.5%，Mn：0.1~3%，P≤0.1%，S≤0.05%，Al：0.04-0.09%，Ti：0.02-0.2%，B：0.0005~0.09%，Cr：0.15~0.8%，Nb為0％或0.001-0.1%，V為0％或0.002-0.008%，餘量為Fe及其他不可避免的雜質。Further, in the thermoformed part with excellent paint film adhesion of the present invention, the mass percentage of the chemical composition of the substrate layer is: C: 0.02~0.8%, Si: 0.05~0.5%, Mn: 0.1~3 %, P≤0.1%, S≤0.05%, Al: 0.04-0.09%, Ti: 0.02-0.2%, B: 0.0005~0.09%, Cr: 0.15~0.8%, Nb is 0% or 0.001-0.1%, V is 0% or 0.002-0.008%, and the balance is Fe and other unavoidable impurities.
進一步地，在本發明所述的具有優異漆膜附著力的熱成形部件中，其屈服強度為400~1400MPa，抗拉強度為500~2100MPa，延伸率≥4%。Further, in the thermoformed part with excellent paint film adhesion of the present invention, the yield strength is 400-1400 MPa, the tensile strength is 500-2100 MPa, and the elongation is ≥ 4%.
優選地，在本發明所述的具有優異漆膜附著力的熱成形部件的基材的微觀組織中麻田散體的體積百分比≥70％，優選85≥％，更優選≥95％。Preferably, the volume percentage of hemp powder in the microstructure of the substrate of the thermoformed part with excellent paint film adhesion of the present invention is ≥70%, preferably 85≥%, more preferably ≥95%.
相應地，本發明的另一目的在於提供上述的具有優異漆膜附著力的熱成形部件的製造方法，通過該製造方法可以獲得漆膜附著力優異的熱成形部件。Correspondingly, another object of the present invention is to provide the above-mentioned method for manufacturing a thermoformed part with excellent paint film adhesion, by which a thermoformed part with excellent paint film adhesion can be obtained.
為了實現上述目的，本發明提出了上述的具有優異漆膜附著力的熱成形部件的製造方法，其包括步驟： （1）將基材浸入鋁鍍液，得到表面具有鍍鋁層的板材； （2）平整：採用粗糙度Ra為0.5～3.0μm的平整輥對板材進行平整，控制平整率≤2.0%，以使所述板材表面熱輻射係數為0.1~0.8，板材表面粗糙度Ra為0.3~2.0μm，板材表面粗糙度峰計數Rpc為30~150； （3）落料：將板材沖裁或切割成部件所需形狀的坯料； （4）熱處理：將坯料放入加熱爐中加熱並保溫，加熱爐溫度為880~960℃，加熱爐內的氣氛採用空氣或氮氣，坯料在加熱爐中的停留時間為2.5~10min； （5）傳輸和熱衝壓：將熱的坯料快速傳輸到模具中進行冷卻衝壓成形，以形成所述熱成形部件。In order to achieve the above-mentioned object, the present invention proposes the above-mentioned method for manufacturing a thermoformed part with excellent paint film adhesion, which includes the steps: (1) Immerse the substrate in an aluminum plating solution to obtain a plate with an aluminum plating layer on the surface; (2) Smoothing: Use a smoothing roller with a roughness Ra of 0.5 to 3.0 μm to smooth the plate, and control the smoothing rate to be ≤2.0%, so that the heat radiation coefficient of the plate surface is 0.1 to 0.8, and the plate surface roughness Ra is 0.3 ~2.0μm, the surface roughness peak count Rpc of the plate is 30~150; (3) Blanking: blanking or cutting the plate into the required shape of the part; (4) Heat treatment: Put the billet in a heating furnace to heat and keep it warm. The temperature of the heating furnace is 880~960℃. The atmosphere in the heating furnace is air or nitrogen. The residence time of the billet in the heating furnace is 2.5~10min; (5) Transfer and hot stamping: The hot blank is quickly transferred to the mold for cooling stamping forming to form the hot formed part.
在本發明所述的製造方法中，在步驟（4）中，加熱爐溫度太低或是坯料在加熱爐中的停留時間過短，均會導致鐵鋁擴散不夠充分，進而使得表面粗糙度太低，影響最終熱成形部件的粗糙度。而當加熱爐溫度過高或是坯料在加熱爐中的停留時間過長，則會導致鐵鋁擴散過度，完全形成FeAl合金，這也會導致最終的熱成形部件的粗糙度降低，同時擴散過程中元素遷移形成的孔洞會影響表面導電性，電泳過程中會導致縮孔，進而影響塗裝性。In the manufacturing method of the present invention, in step (4), the temperature of the heating furnace is too low or the residence time of the billet in the heating furnace is too short, which will lead to insufficient diffusion of iron and aluminum, resulting in excessive surface roughness. Low, affecting the roughness of the final thermoformed part. However, when the temperature of the heating furnace is too high or the residence time of the blank in the heating furnace is too long, it will cause excessive iron and aluminum diffusion and complete the formation of FeAl alloy, which will also cause the roughness of the final hot formed part to decrease, and the diffusion process The holes formed by the migration of middle elements will affect the surface conductivity, and the electrophoresis process will cause shrinkage holes, which will affect the paintability.
進一步地，在本發明所述的製造方法中，在步驟（1）中，鋁鍍液的化學成分質量百分含量為：Si：5~11%，Fe：2~4%，Zn：0~15%，Mg：0~8%，餘量為Al及其他不可避免的雜質。Further, in the manufacturing method of the present invention, in step (1), the mass percentage of the chemical composition of the aluminum plating solution is: Si: 5-11%, Fe: 2-4%, Zn: 0~ 15%, Mg: 0~8%, the balance is Al and other unavoidable impurities.
進一步地，在本發明所述的製造方法中，在步驟（1）中，鋁鍍液的化學成分質量百分含量為：Si：8~11%，Fe：2~4%，Zn：0~11%，Mg：0~8%，餘量為Al及其他不可避免的雜質。Further, in the manufacturing method of the present invention, in step (1), the mass percentage of the chemical composition of the aluminum plating solution is: Si: 8~11%, Fe: 2~4%, Zn: 0~ 11%, Mg: 0-8%, the balance is Al and other unavoidable impurities
進一步地，在本發明所述的製造方法中，在步驟（1）中，鋁鍍液的化學成分質量百分含量為：Si：5~11%，Fe：2~4%，餘量為Al及其他不可避免的雜質。Further, in the manufacturing method of the present invention, in step (1), the mass percentage of the chemical composition of the aluminum plating solution is: Si: 5-11%, Fe: 2-4%, and the balance is Al And other unavoidable impurities.
進一步地，在本發明所述的製造方法中，在步驟（1）中，鋁鍍液的化學成分質量百分含量為：Si：5~11%，Fe：2~4%，任選的Zn：2~15%，任選的Mg：0.5~8%，餘量為Al及其他不可避免的雜質。Further, in the manufacturing method of the present invention, in step (1), the mass percentage of the chemical composition of the aluminum plating solution is: Si: 5-11%, Fe: 2-4%, optional Zn : 2~15%, optional Mg: 0.5~8%, the balance is Al and other unavoidable impurities.
進一步地，在本發明所述的製造方法中，在步驟（4）中，在坯料加熱的升溫過程中，在升溫至400~600℃的範圍內加熱速率不超過10℃/s，以使鍍層中鋅及鋁的預合金化，避免鍍層破壞或出現裂紋。Further, in the manufacturing method of the present invention, in step (4), during the heating process of the billet heating, the heating rate does not exceed 10°C/s in the range of 400~600°C to make the coating Pre-alloying of zinc and aluminum to avoid coating damage or cracks.
進一步地，在本發明所述的製造方法中，在步驟（5）中，坯料在20s以內被傳輸到模具中。Further, in the manufacturing method of the present invention, in step (5), the blank is transferred to the mold within 20 seconds.
進一步地，在本發明所述的製造方法，在步驟（5）的熱衝壓過程中，模具合模後持續保壓淬火4~20s，對坯料表面施加的保壓壓強≥8MPa。在一些實施方案中，保壓壓強為10~20MPa。Further, in the manufacturing method of the present invention, in the hot stamping process of step (5), after the mold is closed, the pressure-holding quenching is continued for 4-20 s, and the pressure-holding pressure applied to the surface of the blank is ≥8MPa. In some embodiments, the holding pressure is 10-20 MPa.
進一步地，在本發明所述的製造方法中，在步驟（5）中，模具的材質滿足：在700℃時的熱擴散係數大於3.8mm2 /s。Further, in the manufacturing method of the present invention, in step (5), the material of the mold satisfies: the thermal diffusion coefficient at 700° C. is greater than 3.8 mm 2 /s.
進一步地，在本發明所述的製造方法中，在步驟（5）中，衝壓時模具的合模速度為30~150mm/s，以使熱成形部件可以保證良好的成形性能，減少衝壓缺陷例如開裂、縮頸的發生。Further, in the manufacturing method of the present invention, in step (5), the clamping speed of the mold during stamping is 30~150mm/s, so that the thermoformed part can ensure good forming performance and reduce stamping defects such as The occurrence of cracking and necking.
進一步地，在本發明所述的製造方法中，在步驟（5）中，將坯料以30~150℃/s的冷卻速度冷卻至50～200℃，以使得熱成形部件的內部組織轉變為所需要的組織結構，同時保證熱成形部件在冷卻過程中依然保持良好的尺寸形狀。Further, in the manufacturing method of the present invention, in step (5), the blank is cooled to 50-200°C at a cooling rate of 30-150°C/s, so that the internal structure of the thermoformed part is transformed into The required organizational structure, while ensuring that the thermoformed parts still maintain a good size and shape during the cooling process.
本發明也包括採用上述方法製造得到的熱成形部件。The present invention also includes thermoformed parts manufactured by the above-mentioned method.
本發明所述的具有優異漆膜附著力的熱成形部件及其方法相較於現有技術具有如下所述的優點以及有益效果：Compared with the prior art, the thermoformed part with excellent paint film adhesion and its method according to the present invention have the following advantages and beneficial effects:
本發明所述的具有優異漆膜附著力的熱成形部件具有較好的塗裝性、好的漆膜附著力以及較好的耐蝕性，非常適合用於汽車零部件，例如：前、後門左右防撞槓/梁、前、後保險槓、A柱加強板、B柱加強板、地板中通道等。The thermoformed parts with excellent paint film adhesion of the present invention have better paintability, good paint film adhesion and better corrosion resistance, and are very suitable for automotive parts, such as: front and rear doors Anti-collision bars/beams, front and rear bumpers, A-pillar reinforcement plate, B-pillar reinforcement plate, floor middle channel, etc.
此外，本發明所述的製造方法也同樣具有上述的優點以及有益效果。In addition, the manufacturing method of the present invention also has the above-mentioned advantages and beneficial effects.
下面將結合具體的實施例對本發明所述的具有優異漆膜附著力的熱成形部件及其製造方法做進一步的解釋和說明，然而該解釋和說明並不對本發明的技術方案構成不當限定。 實施例1-10以及比較例1The following will further explain and describe the thermoformed component with excellent paint film adhesion and its manufacturing method according to the present invention in conjunction with specific examples, but the explanation and description do not improperly limit the technical solution of the present invention. Examples 1-10 and Comparative Example 1
實施例1-10的具有優異漆膜附著力的熱成形部件和比較例1採用以下步驟製得： （1）將基材浸入鋁鍍液，得到表面具有鍍鋁層的板材。 （2）平整：採用粗糙度Ra為0.5～3.0μm的平整輥對板材進行平整，控制平整率≤2.0%，以使所述板材表面熱輻射係數為0.1~0.8，板材表面粗糙度Ra為0.3~2.0μm，板材表面粗糙度峰計數Rpc為30~150。 （3）落料：將板材沖裁或切割成部件所需形狀的坯料。 （4）熱處理：將坯料放入加熱爐中加熱並保溫，加熱爐溫度為880~960℃，加熱爐內的氣氛採用空氣或氮氣，坯料在加熱爐中的停留時間為2.5~10min，在坯料加熱的升溫過程中，在升溫至400~600℃的範圍內加熱速率不超過10℃/s。 （5）傳輸和熱衝壓：將熱的坯料快速（例如在20s內）傳輸到模具中進行冷卻衝壓成形，以形成熱成形部件。其中，在熱衝壓過程中，模具合模後持續保壓淬火4~20s，對坯料表面施加的保壓壓強≥8MPa，模具的材質滿足：在700℃時的熱擴散係數大於3.8mm2 /s，衝壓時模具的合模速度為30~150mm/s，將坯料以30~150℃/s的冷卻速度冷卻至50～200℃。The thermoformed parts with excellent paint film adhesion of Examples 1-10 and Comparative Example 1 were prepared by the following steps: (1) The substrate was immersed in an aluminum plating solution to obtain a sheet with an aluminum plating layer on the surface. (2) Smoothing: Use a smoothing roller with a roughness Ra of 0.5 to 3.0 μm to smooth the plate, and control the smoothing rate to be ≤2.0%, so that the heat radiation coefficient of the plate surface is 0.1 to 0.8, and the plate surface roughness Ra is 0.3 ~2.0μm, the surface roughness peak count Rpc of the plate is 30~150. (3) Blanking: blanking or cutting the plate into the required shape of the part. (4) Heat treatment: Put the billet into a heating furnace to heat and keep it warm. The temperature of the heating furnace is 880~960℃. The atmosphere in the heating furnace is air or nitrogen. The residence time of the billet in the heating furnace is 2.5~10min. During the heating process, the heating rate does not exceed 10°C/s within the range of 400 to 600°C. (5) Transfer and hot stamping: The hot blank is quickly (for example, within 20s) transferred to the mold for cooling stamping forming to form a hot formed part. Among them, in the hot stamping process, after the mold is closed, the pressure is maintained and quenched for 4-20s, the pressure on the surface of the blank is ≥8MPa, and the material of the mold meets: the thermal diffusion coefficient at 700℃ is greater than 3.8mm 2 /s , The clamping speed of the mold during stamping is 30~150mm/s, and the blank is cooled to 50~200°C at a cooling rate of 30~150°C/s.
其中，各個實施例和比較例的製造方法如下所述： 實施例1Among them, the manufacturing methods of each embodiment and comparative example are as follows: Example 1
採用平整輥對1.2mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：8.5%，Fe：2.6%，Zn：15%，Mg：4%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度950℃，停留時間3.5min，400~600℃的範圍內加熱速率為2℃/s，傳輸時間4s，保壓時間5s，保壓壓強10MPa，合模速度50mm/s，冷速為50℃/s，冷卻至200℃，模具在700℃時的熱擴散係數為4mm2 /s。 實施例2The 1.2mm aluminum alloy coated steel plate is leveled with a leveling roller to obtain the plate before heat treatment and hot stamping with the surface roughness shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 8.5%, Fe: 2.6%, Zn: 15%, Mg: 4%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace, the heating furnace temperature is 950℃, the residence time is 3.5min, 400 In the range of ~600℃, the heating rate is 2℃/s, the transfer time is 4s, the holding time is 5s, the holding pressure is 10MPa, the mold clamping speed is 50mm/s, the cooling speed is 50°C/s, and the mold is cooled to 200°C. The thermal diffusivity at 700°C is 4mm 2 /s. Example 2
採用平整輥對0.9mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：5%，Fe：2.4%，Zn：8%，Mg：8%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度940℃，停留時間5min，400~600℃的範圍內加熱速率為5℃/s，傳輸時間6s，保壓時間15s，保壓壓強20MPa，合模速度150mm/s， 冷速為150℃/s， 冷卻至50℃，模具在700℃時的熱擴散係數為5mm2 /s。 實施例3Use a smoothing roller to level the 0.9mm aluminum alloy coated steel plate to obtain the surface roughness of the plate before heat treatment and hot stamping as shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 5%, Fe: 2.4%, Zn: 8%, Mg: 8%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace, the heating furnace temperature is 940℃, the residence time is 5min, 400~ In the range of 600°C, the heating rate is 5°C/s, the transfer time is 6s, the holding time is 15s, the holding pressure is 20MPa, the mold clamping speed is 150mm/s, the cooling speed is 150°C/s, cooling to 50°C, the mold is at 700 The thermal diffusivity at ℃ is 5mm 2 /s. Example 3
採用平整輥對1.0mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：9.0%，Fe：2.7%，其餘為鋁及不可避免雜質，坯料進入加熱爐，400-600℃的加熱速率為5℃/s，加熱爐溫度930℃，停留時間7min，8s內傳輸至模具，700℃左右模具的熱擴散係數為7 mm2 /s。合模速度70mm/s，保壓時間6s，保壓壓強12MPa，冷速100℃/s， 冷卻至100℃。所得熱成形部件基材微觀組織中麻田散體比例高於96%。 實施例4The 1.0mm aluminum alloy coated steel plate is leveled by a leveling roller to obtain the plate before heat treatment and hot stamping with the surface roughness shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 9.0%, Fe: 2.7%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace. The heating rate of 400-600℃ is 5℃/s, the heating furnace temperature is 930℃, and the residence time is 7min. , Transfer to the mold within 8s, the thermal diffusion coefficient of the mold at about 700℃ is 7 mm 2 /s. Clamping speed is 70mm/s, holding time is 6s, holding pressure is 12MPa, cooling speed is 100℃/s, and cooling to 100℃. In the resulting microstructure of the base material of the thermoformed part, the ratio of aspartite bulk is higher than 96%. Example 4
採用平整輥對2.8mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：8.8%，Fe：2.7%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度920℃，停留時間7min，400-600℃的加熱速率為10℃/s，8s內傳輸至模具，合模速度70mm/s，保壓時間6s，保壓壓強15MPa，冷速60℃/s， 冷卻至60℃，模具在700℃時的熱擴散係數為6mm2 /s。所得熱成形部件基材微觀組織中麻田散體比例高於98%。 實施例5The 2.8mm aluminum alloy coated steel plate is leveled by a leveling roller, and the surface roughness of the plate before heat treatment and hot stamping is shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 8.8%, Fe: 2.7%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace, the heating furnace temperature is 920℃, the residence time is 7min, and the heating rate of 400-600℃ is 10℃/s , Transfer to the mold within 8s, clamping speed 70mm/s, holding time 6s, holding pressure 15MPa, cooling speed 60℃/s, cooling to 60℃, the thermal diffusion coefficient of the mould at 700℃ is 6mm 2 /s . In the resulting microstructure of the base material of the thermoformed parts, the ratio of aspartite bulk is higher than 98%. Example 5
採用平整輥對1.1mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：10%，Fe：3.5%，Zn：2%，Mg：1%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度935℃，停留時間4.5min，400~600℃的範圍內加熱速率為4℃/s，7s內傳輸至模具，上下模具合模速度80mm/s，保壓時間5s，保壓壓強15MPa，模具在700℃時的熱擴散係數為4mm2 /s，冷卻至100℃。所得熱成形部件基材微觀組織中麻田散體比例高於95%。 實施例6The 1.1mm aluminum alloy coated steel plate is leveled with a leveling roller to obtain the plate before heat treatment and hot stamping with the surface roughness shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 10%, Fe: 3.5%, Zn: 2%, Mg: 1%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace, the heating furnace temperature is 935℃, the residence time is 4.5min, 400 The heating rate is 4°C/s in the range of ~600°C, and it is transferred to the mold within 7s. The upper and lower mold clamping speed is 80mm/s, the holding time is 5s, the holding pressure is 15MPa, and the thermal diffusion coefficient of the mold at 700°C is 4mm. 2 /s, cooling to 100°C. In the resulting microstructure of the base material of the thermoformed part, the ratio of aspartite bulk is higher than 95%. Example 6
採用平整輥對1.5mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：10%，Fe：3.5%，Mg：0.5%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度935℃，停留時間5min，400~600℃的範圍內加熱速率為6℃/s，7s內傳輸至模具，上下模具合模速度80mm/s，保壓時間5s，保壓壓強15MPa，模具在700℃時的熱擴散係數為4mm2 /s，冷卻至120℃。所得熱成形部件基材微觀組織中麻田散體比例高於95%。 實施例7The 1.5mm aluminum alloy coated steel plate is leveled with a leveling roller to obtain the plate before heat treatment and hot stamping with the surface roughness shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 10%, Fe: 3.5%, Mg: 0.5%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace, the heating furnace temperature is 935℃, the residence time is 5min, and the range is 400~600℃ The heating rate is 6°C/s, which is transferred to the mold within 7s, the upper and lower mold clamping speed is 80mm/s, the holding time is 5s, and the holding pressure is 15MPa. The thermal diffusion coefficient of the mold at 700°C is 4mm 2 /s, and it is cooled to 120°C. In the resulting microstructure of the base material of the thermoformed part, the ratio of aspartite bulk is higher than 95%. Example 7
採用平整輥對1.8mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：10%，Fe：3.5%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度945℃，停留時間2.5min，400~600℃的範圍內加熱速率為7℃/s，7s內傳輸至模具，上下模具合模速度80mm/s，保壓時間5s，保壓壓強15MPa，模具在700℃時的熱擴散係數為6.8mm2 /s，冷卻至140℃。所得熱成形部件基材微觀組織中麻田散體比例高於95%。 實施例8The 1.8mm aluminum alloy coated steel plate is leveled by a leveling roller to obtain the plate before heat treatment and hot stamping with the surface roughness shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 10%, Fe: 3.5%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace, the heating furnace temperature is 945℃, the residence time is 2.5min, and the heating rate is 7 in the range of 400~600℃ ℃/s, transfer to the mold within 7s, the upper and lower mold clamping speed is 80mm/s, the holding time is 5s, the holding pressure is 15MPa, the thermal diffusion coefficient of the mold at 700°C is 6.8mm 2 /s, and it is cooled to 140°C. In the resulting microstructure of the base material of the thermoformed part, the ratio of aspartite bulk is higher than 95%. Example 8
採用平整輥對2.0mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：10%，Fe：3.5%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度940℃，停留時間3min，400~600℃的範圍內加熱速率為3℃/s，爐內氣氛氧含量為22%，7s內傳輸至模具，上下模具合模速度80mm/s，保壓時間5s，保壓壓強15MPa，模具在700℃時的熱擴散係數為7mm2 /s，冷卻至110℃。所得熱成形部件基材微觀組織中麻田散體比例高於95%。 實施例9The 2.0mm aluminum alloy coated steel plate is leveled with a leveling roller to obtain the plate before heat treatment and hot stamping with the surface roughness shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 10%, Fe: 3.5%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace. The temperature of the heating furnace is 940℃, the residence time is 3min, and the heating rate is 3℃ within the range of 400~600℃. /s, the oxygen content of the atmosphere in the furnace is 22%, it is transmitted to the mold within 7s, the upper and lower mold clamping speed is 80mm/s, the holding time is 5s, the holding pressure is 15MPa, and the thermal diffusion coefficient of the mold at 700℃ is 7mm 2 / s, cool to 110°C. In the resulting microstructure of the base material of the thermoformed part, the ratio of aspartite bulk is higher than 95%. Example 9
採用平整輥對2.4mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：10%，Fe：3.5%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度935℃，停留時間5min，400~600℃的範圍內加熱速率為8℃/s，爐內氣氛氧含量為22%，7s內傳輸至模具，上下模具合模速度80mm/s，保壓時間5s，保壓壓強15MPa，模具在700℃時的熱擴散係數為4mm2 /s，冷卻至100℃。所得熱成形部件基材微觀組織中麻田散體比例高於95%。 實施例10The 2.4mm aluminum alloy coated steel plate is leveled by a leveling roller to obtain the plate before heat treatment and hot stamping with the surface roughness shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 10%, Fe: 3.5%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace, the heating furnace temperature is 935℃, the residence time is 5min, and the heating rate is 8℃ in the range of 400~600℃ /s, the oxygen content of the atmosphere in the furnace is 22%, and it is transmitted to the mold within 7s. The upper and lower mold clamping speed is 80mm/s, the holding time is 5s, the holding pressure is 15MPa, and the thermal diffusion coefficient of the mold at 700℃ is 4mm 2 / s, cool to 100°C. In the resulting microstructure of the base material of the thermoformed part, the ratio of aspartite bulk is higher than 95%. Example 10
採用平整輥對2.8mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：10%，Fe：3.5%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度950℃，停留時間2.5min，400~600℃的範圍內加熱速率為4℃/s，爐內氣氛氧含量為20%，15s內傳輸至模具，上下模具合模速度80mm/s，保壓時間5s，保壓壓強15MPa，模具在700℃時的熱擴散係數為5mm2 /s，冷卻至80℃。所得熱成形部件基材微觀組織中麻田散體比例高於95%。 比較例1The 2.8mm aluminum alloy coated steel plate is leveled by a leveling roller, and the surface roughness of the plate before heat treatment and hot stamping is shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 10%, Fe: 3.5%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace, the temperature of the heating furnace is 950℃, the residence time is 2.5min, and the heating rate is 4 in the range of 400~600℃ ℃/s, the oxygen content of the atmosphere in the furnace is 20%, and it is transmitted to the mold within 15s. The upper and lower mold clamping speed is 80mm/s, the holding time is 5s, the holding pressure is 15MPa, and the thermal diffusion coefficient of the mold at 700°C is 5mm 2 /s, cooling to 80°C. In the resulting microstructure of the base material of the thermoformed part, the ratio of aspartite bulk is higher than 95%. Comparative example 1
採用平整輥對1.5mm帶鋁合金鍍層鋼板進行平整，得到表面粗糙度如表2所示的熱處理和熱衝壓前的板材，雷射落料成一定尺寸和形狀的坯料，鋁鍍液的化學成分質量百分含量為Si：10%，Fe：3.5%，其餘為鋁及不可避免雜質，坯料進入加熱爐，加熱爐溫度935℃，停留時間5min，400~600℃的範圍內加熱速率為6℃/s，7s內傳輸至模具，上下模具合模速度80mm/s，保壓時間5s，保壓壓強15MPa，模具在700℃時的熱擴散係數為4mm2 /s，冷卻至120℃。所得熱成形部件基材微觀組織中麻田散體比例高於95%。The 1.5mm aluminum alloy coated steel plate is leveled with a leveling roller to obtain the plate before heat treatment and hot stamping with the surface roughness shown in Table 2. The laser blanks into a blank of a certain size and shape, and the chemical composition of the aluminum plating solution The mass percentage content is Si: 10%, Fe: 3.5%, the rest is aluminum and unavoidable impurities. The billet enters the heating furnace, the heating furnace temperature is 935℃, the residence time is 5min, and the heating rate is 6℃ in the range of 400~600℃ /s, transfer to the mold within 7s, the upper and lower mold clamping speed is 80mm/s, the holding time is 5s, the holding pressure is 15MPa, the thermal diffusion coefficient of the mold at 700℃ is 4mm 2 /s, and it is cooled to 120℃. In the resulting microstructure of the base material of the thermoformed part, the ratio of aspartite bulk is higher than 95%.
表1列出了實施例1-10的具有優異漆膜附著力的熱成形部件的基材層以及比較例1的基材層的各化學元素的質量百分比。Table 1 lists the mass percentages of the chemical elements in the base layer of the thermoformed parts with excellent paint film adhesion of Examples 1-10 and the base layer of Comparative Example 1.
表1.（wt%，餘量為Fe和其他不可避免的雜質）
為了驗證本案的實施效果，同時證明本案較之現有技術的優異效果，本案將實施例1-10的具有優異漆膜附著力的熱成形部件以及比較例1的對比熱成形部件進行測試，表2列出了各個實施例以及比較例的測試結果。
表2
參考GB/T 9286-1998 百格法，用刀在表面劃百格，用膠帶貼在形成的格子中心，然後平穩的扯離，觀察漆膜脫落的現象，並通過計算劃格中格子中的狀態對應標準進行評級判定。Refer to the GB/T 9286-1998 Hundred Grid Method, use a knife to mark the 100 grid on the surface, stick it to the center of the grid formed with tape, and then pull it off smoothly, observe the phenomenon of paint film falling off, and calculate the value of the grid in the grid. The status corresponds to the standard for rating judgment.
塗裝性的評價方法參考GMW16170標準。The evaluation method of paintability refers to the GMW16170 standard.
耐蝕性的測試方法參考GMW14872。The corrosion resistance test method refers to GMW14872.
由表2可以看出，本案各個實施例的屈服強度為400~1350MPa，抗拉強度為500~2000MPa，延伸率為4~19%。It can be seen from Table 2 that the yield strength of each embodiment of this case is 400~1350MPa, the tensile strength is 500~2000MPa, and the elongation is 4~19%.
此外，由表2還可以看出，比較例1中的對比熱成形部件在熱衝壓後的成品表面粗糙度Ra低於1.8μm，Rt低於12μm，Rpc低於90，並且比較例1的熱成形件的塗裝性較差，漆膜附著力不滿足要求，其性能遠遠不如本案的各個實施例的熱成形部件。另外，由表2可以看出，熱成形部件所採用的熱處理和熱衝壓前的材料表面粗糙度越高，熱處理和熱衝壓後產品粗糙度也相對較高，對漆膜附著力更好。In addition, it can be seen from Table 2 that the finished surface roughness Ra of the comparative thermoformed part after hot stamping in Comparative Example 1 is less than 1.8μm, Rt is less than 12μm, Rpc is less than 90, and the thermal The paintability of the formed part is poor, the paint film adhesion does not meet the requirements, and its performance is far inferior to the thermoformed parts of the various embodiments of this case. In addition, it can be seen from Table 2 that the higher the surface roughness of the material before heat treatment and hot stamping used in the hot forming part, the higher the roughness of the product after heat treatment and hot stamping, and the better the adhesion to the paint film.
綜上所述可以看出，本發明所述的具有優異漆膜附著力的熱成形部件具有較好的塗裝性、好的漆膜附著力以及較好的耐蝕性，非常適合用於汽車零部件，例如：前、後門左右防撞槓/梁、前、後保險槓、A柱加強板、B柱加強板、地板中通道等。In summary, it can be seen that the thermoformed parts with excellent paint film adhesion of the present invention have better paintability, good paint film adhesion and better corrosion resistance, and are very suitable for automotive parts. Components, such as: front and rear doors, left and right anti-collision bars/beams, front and rear bumpers, A-pillar reinforcement plates, B-pillar reinforcement plates, floor mid-channels, etc.
此外，本發明所述的製造方法也同樣具有上述的優點以及有益效果。In addition, the manufacturing method of the present invention also has the above-mentioned advantages and beneficial effects.
需要說明的是，本發明的保護範圍中現有技術部分並不局限於本申請檔所給出的實施例，所有不與本發明的方案相矛盾的現有技術，包括但不局限於先前專利文獻、先前公開出版物，先前公開使用等等，都可納入本發明的保護範圍。It should be noted that the prior art part of the protection scope of the present invention is not limited to the embodiments given in this application file. All prior art that does not contradict the solution of the present invention includes but is not limited to previous patent documents, Previously published publications, previously published use, etc., can all be included in the protection scope of the present invention.
此外，本案中各技術特徵的組合方式並不限本案申請專利範圍中所記載的組合方式或是具體實施例所記載的組合方式，本案記載的所有技術特徵可以以任何方式進行自由組合或結合，除非相互之間產生矛盾。In addition, the combination of the technical features in this case is not limited to the combination described in the scope of the patent application in this case or the combination described in the specific embodiments. All the technical features described in this case can be freely combined or combined in any way. Unless there is a contradiction between each other.
還需要注意的是，以上所列舉的實施例僅為本發明的具體實施例。顯然本發明不局限於以上實施例，隨之做出的類似變化或變形是本領域技術人員能從本發明公開的內容直接得出或者很容易便聯想到的，均應屬於本發明的保護範圍。It should also be noted that the above-listed embodiments are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and the subsequent similar changes or modifications are those skilled in the art can directly derive or easily associate from the disclosure of the present invention, and they should all fall within the protection scope of the present invention .
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481451A (en) * | 2021-06-07 | 2021-10-08 | 马鞍山钢铁股份有限公司 | Pre-coated steel plate for hot forming, preparation method thereof, hot forming steel member and application thereof |
| CN113481451B (en) * | 2021-06-07 | 2022-12-27 | 马鞍山钢铁股份有限公司 | Pre-coated steel plate for hot forming, preparation method thereof, hot forming steel member and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4067530A1 (en) | 2022-10-05 |
| CN112877592B (en) | 2022-06-28 |
| CN112877592A (en) | 2021-06-01 |
| ZA202205445B (en) | 2023-01-25 |
| AU2020389982A1 (en) | 2022-06-30 |
| JP7326612B2 (en) | 2023-08-15 |
| MX2022006471A (en) | 2022-09-09 |
| WO2021103805A1 (en) | 2021-06-03 |
| JP2023503151A (en) | 2023-01-26 |
| CA3159490A1 (en) | 2021-06-03 |
| EP4067530A4 (en) | 2022-11-02 |
| KR20220106776A (en) | 2022-07-29 |
| TWI780518B (en) | 2022-10-11 |
| US20230002843A1 (en) | 2023-01-05 |
| BR112022009756A2 (en) | 2022-08-09 |
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