CN117483561A - Method for manufacturing hot-stamped component with aluminum-silicon alloy coating and hot-stamped component - Google Patents
Method for manufacturing hot-stamped component with aluminum-silicon alloy coating and hot-stamped component Download PDFInfo
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- CN117483561A CN117483561A CN202311026106.4A CN202311026106A CN117483561A CN 117483561 A CN117483561 A CN 117483561A CN 202311026106 A CN202311026106 A CN 202311026106A CN 117483561 A CN117483561 A CN 117483561A
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- aluminum
- silicon alloy
- heating
- alloy coating
- blank
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- 239000011248 coating agent Substances 0.000 title claims abstract description 72
- 238000000576 coating method Methods 0.000 title claims abstract description 72
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910000676 Si alloy Inorganic materials 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 112
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000004321 preservation Methods 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 3
- 238000007747 plating Methods 0.000 claims description 30
- 238000009792 diffusion process Methods 0.000 claims description 24
- 239000012535 impurity Substances 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000024121 nodulation Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 42
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 6
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
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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
-
- 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
- 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
- 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
- C21D1/26—Methods of annealing
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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
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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
- C21D1/76—Adjusting the composition of the atmosphere
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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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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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
- 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
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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
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
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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
-
- 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
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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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
-
- 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
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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
- 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
- C23C28/02—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 only coatings only including layers of metallic material
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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
- 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
- C23C28/02—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 only coatings only including layers of metallic material
- C23C28/021—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 only coatings only including layers of metallic material including at least one metal alloy layer
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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
Abstract
A method for manufacturing a hot stamping part with an aluminum-silicon alloy coating and the hot stamping part, the method comprises the following steps: processing the steel plate coated with the aluminum-silicon alloy coating into a blank with a shape required by a part, performing heat treatment on the blank, and performing hot stamping forming; the blank heat treatment adopts three-section heating and heat preservation, and the heating and heat preservation is stepwise heating; the aluminum-silicon alloy coated steel sheet includes a substrate and an aluminum-silicon alloy coating on at least one surface thereof. The method fully considers the characteristics of the aluminum-silicon coating, can effectively solve the problem of sticking the aluminum-silicon coating, reduces the nodulation probability of the roller of the heat treatment furnace, prolongs the service life of the roller, and simultaneously ensures the integrity of the coating of the hot stamping part, the mechanical property, the welding property, the coating property and the corrosion resistance of the part.
Description
Technical Field
The present invention relates to a hot stamping member manufacturing technology, and more particularly, to a method for manufacturing a hot stamping member with an aluminum-silicon alloy coating layer and a hot stamping member.
Background
The light weight and the emission reduction are main development trends of the automobile industry, materials with relatively low strength are adopted, the microstructure is changed through heat treatment, and finally, the high strength of the automobile part is realized. The aluminum silicon coating has good thickness and dimensional accuracy, good corrosion resistance and welding performance compared with an uncoated hot stamping product, the proportion of the hot stamping steel used at present is about 70%, and the proportion is higher and higher in the foreseeable future.
Chinese patent CN101583486B discloses a method of coating a punched product comprising a temperature and time of punching, a heating rate from room temperature to 700 ℃ is 4-12 ℃/s, the main purpose being to ensure spot welding performance of the punched part.
Chinese patent CN102300707B further discloses a heating method for hot stamping coated parts, specifically, a heating rate at a melting temperature, a heat preservation time at an austenitizing temperature, etc., but in a use process, a user finds that the heating method can not well solve the problems of sticking of aluminum-silicon coating to rollers, reduced service life of the rollers of the heat treatment furnace, falling of the coating of the hot stamping parts, etc. in consideration of efficiency and takt time of the heat treatment furnace.
Disclosure of Invention
The invention aims to provide a manufacturing method of a hot stamping part with an aluminum-silicon alloy coating and the hot stamping part, which can effectively solve the problem of sticking of the aluminum-silicon coating, reduce the nodulation probability of a roller of a heat treatment furnace, improve the service life of the roller, and simultaneously ensure the integrity of the coating of the hot stamping part, the mechanical property, the welding property, the coating property and the corrosion resistance of the part.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a method for manufacturing a hot stamping part with an aluminum-silicon alloy coating comprises the following steps: processing the steel plate coated with the aluminum-silicon alloy coating into a blank with a shape required by a part, performing heat treatment on the blank, and performing hot stamping forming; in the blank heat treatment, placing the blank into a heat treatment furnace for austenitizing heat treatment, wherein the blank heat treatment process comprises a first heating heat preservation section, a second heating heat preservation section and a third heating heat preservation section; wherein:
when the thickness of the steel plate coated with the aluminum-silicon alloy coating is less than 1.5mm,
a first heating and insulating section, wherein a heating and insulating set temperature and set time are defined in a pattern ABCD, the pattern ABCD has a temperature and time range defined by a (750 ℃,30 s), B (750 ℃,90 s), C (870 ℃,90 s), D (870 ℃,30 s);
a second heating and holding section, the heating and holding set temperature and set time being defined within a pattern EFGH having a temperature and time range defined by E (875 ℃,60 s), F (875 ℃,240 s), G (930 ℃,150 s), H (930 ℃,30 s);
a third heating and insulating section, wherein the heating and insulating set temperature and set time are defined in a graph IJKL, and the graph IJKL has a temperature and time range defined by I (935 ℃,60 s), J (935 ℃,240 s), K (955 ℃,180 s) and L (955 ℃,30 s);
when the thickness of the steel plate coated with the aluminum-silicon alloy coating is more than or equal to 1.5mm,
a first heating and holding section, the heating and holding temperature and time being defined within a pattern a ' B ' C ' D ' having a ' of a ' (750 ℃,30 s), B ' (750 ℃,90 s), C ' (890 ℃,90 s), D ' (890 ℃,30 s);
a second heating and insulating section, wherein the heating and insulating set temperature and set time are defined in a graph E 'F' G 'H' which has a temperature and time range defined by E '(895 ℃,90 s), F' (895 ℃,270 s), G '(940 ℃,210 s) and H' (940 ℃,60 s);
the third heating and insulating section is defined in a graph I 'J' K 'L' with the temperature and time ranges defined by I '(945 ℃,60 s), J' (945 ℃,240 s), K '(955 ℃,180 s), L' (955 ℃,30 s).
In the blank heat treatment process, the temperatures in the first, second and third heating and heat preserving sections are stepped temperature rise or set to be a temperature.
For example, the heat treatment process of the 1.2mm aluminum-silicon alloy coated steel plate can be 800 ℃ in a first heating and heat-preserving section, 60s in a second heating and heat-preserving section, 930 ℃ in a second heating and heat-preserving section, 120s in a third heating and heat-preserving section, 940 ℃ in a third heating and heat-preserving section, and 60s; the first heating and heat-preserving section can be set to a plurality of temperatures, such as 770 ℃,40s,820 ℃,30s,770 ℃,50s, the second heating and heat-preserving section can be set to a plurality of temperatures, such as 900 ℃,60s,930 ℃,60s, and the third heating and heat-preserving section 935 ℃,60s,940 ℃,60s.
Preferably, the blank heat treatment process has a time of not less than 150s and not more than 600s.
Preferably, the blank heat treatment process adopts a heat treatment furnace, the oxygen content of the furnace atmosphere is not less than 15 percent, and the dew point in the furnace is not higher than-5 ℃.
Preferably, in the hot stamping forming process, the blank after heat treatment is quickly transferred to a die for stamping forming, the transfer time is 4-12 seconds, and the temperature of the blank before entering the die is not lower than 600 ℃; and cooling the die before stamping to ensure that the surface temperature of the die before stamping is lower than 100 ℃, and the cooling rate of the blank is higher than 30 ℃/s.
The steel plate coated with the aluminum-silicon alloy coating comprises a substrate and at least one surface of the substrate, wherein the substrate comprises the following components in percentage by weight: c:0.04-0.8%, si <1.2%, mn:0.1-5%, P <0.3%, S <0.1%, al <0.3%, ti <0.5%, B <0.1%, cr <3%, and Fe and unavoidable impurities as the rest.
Preferably, the aluminum-silicon alloy coating comprises the following components in percentage by weight: si: 4-14%, fe:0 to 4 percent, and the balance of Al and unavoidable impurities.
Preferably, the weight average value of the aluminum-silicon alloy coating is 58-105 g/m 2 One side.
Preferably, the weight average value of the aluminum-silicon alloy coating is 72-88 g/m 2 One side.
In addition, the aluminum-silicon alloy plating layer of the hot stamping part obtained by the manufacturing method comprises a surface alloy layer and a diffusion layer, and the ratio of the thickness of the diffusion layer to the thickness of the aluminum-silicon alloy plating layer is 0.08-0.5.
Specifically, the aluminum-silicon alloy coating comprises two layers, wherein a diffusion layer is in contact with the substrate, and Al in the aluminum-silicon alloy coating and Fe in the substrate are further diffused in the heat treatment process to form the diffusion layer; the Al in the Al-Si alloy coating and the Fe of the substrate can be alloyed to form a surface alloy layer; in the hot stamped component, the ratio of the thickness of the diffusion layer to the total thickness of the aluminum-silicon alloy plating layer (comprising the diffusion layer and the surface alloy layer) is 0.08-0.5.
The yield strength of the hot stamping part is 400-1300MPa, the tensile strength is 500-2000MPa, and the elongation is more than or equal to 4%.
In the heat treatment process of the hot forming part, no coating melts the adhesive roller, the coating is complete, the adhesion is good, and the surface is not obviously peeled off.
The coating of the hot formed part disclosed by the invention is free from falling, the surface roughness meets the requirement, the ratio of the thickness of the diffusion layer to the thickness of the coating is 0.08-0.5, a paint film is complete after electrophoretic coating, and the adhesive force of the paint film is evaluated to be more than 0 level.
The diffusion layer thickness and the plating layer thickness of the hot forming part meet the requirements, the ratio of the diffusion layer thickness to the plating layer thickness is 0.08-0.5, the spot welding performance is excellent, and the spot welding interval is more than 2 KA.
The coating on the hot-formed part can well meet the diffusion of the coating and the austenitizing of the substrate in the heat treatment process, and meanwhile, the melting of the coating is avoided, so that the hot-stamped part with good coating performance and substrate performance is obtained.
Specifically, the melting point of the Al-Si alloy coating Al-Si alloy is 580-600 ℃, the austenitizing temperature of the steel plate is above 840 ℃, the Al-Si alloy coating melts in the heat treatment process, adheres to a furnace roller, and diffuses Al in the coating and Fe on a substrate to form Fe-Al alloy.
The invention has the beneficial effects that:
by designing the blank heat treatment process, the adhesion of the aluminum-silicon alloy coating to the roller of the heat treatment furnace is reduced, the occurrence rate of nodulation of the roller of the heat treatment furnace is reduced, and the maintenance period and the service life of the roller are prolonged.
Meanwhile, the blank heat treatment process can improve the surface quality of the stamping part and prevent the plating layer from peeling off in the heat treatment process.
In addition, the blank heat treatment method adopts a stepped heating mode, fully considers the properties of the aluminum-silicon alloy coating, reasonably adjusts the temperature and time according to the thickness of the material, effectively utilizes the energy and has good energy-saving effect.
Drawings
Fig. 1 is a surface of an aluminum-silicon alloy plated hot stamped part prepared in comparative example 1.
Fig. 2 shows the surface of an aluminum-silicon alloy plated hot stamped part prepared in example 1 of the present invention.
Fig. 3 is a cross-sectional view of an aluminum-silicon alloy plated hot stamped part prepared in example 1 of the present invention.
Fig. 4 is a schematic diagram of heating and heat preservation temperatures and time ranges (the thickness of a steel plate is less than 1.5 mm) of first to third heating and heat preservation sections in the blank heat treatment process (three-section heating and heat preservation) of the invention.
FIG. 5 is a schematic diagram showing the heating temperature and time ranges of the first to third heating and heat preservation sections (the thickness of the steel plate is more than or equal to 1.5 mm) of the blank heat treatment process (three-section heating and heat preservation) of the invention.
Detailed Description
The invention is further described below with reference to examples and figures.
Table 1 shows the components of the steel sheet substrate according to the embodiment of the present invention; table 2 shows the hot stamped component manufacturing process and the hot stamped component performance of the examples of the present invention.
Example 1
The 1.2mm substrate is subjected to hot dip aluminum plating at 650 ℃, the plating solution comprises 8% of Si,2.3% of Fe, the balance of Al and unavoidable impurities, a steel plate coated with an aluminum-silicon alloy plating layer is continuously blanked into a blank with a certain shape, the blank is subjected to heat treatment, specific heat treatment parameters are shown in table 2, the appearance of the obtained hot stamped part is shown in fig. 2, the microstructure chart 3 of the section of the aluminum-silicon alloy plating layer is shown, the aluminum-silicon alloy plating layer comprises a surface alloy layer and a diffusion layer, and the ratio of the thickness of the diffusion layer to the thickness of the aluminum-silicon alloy plating layer is 0.25.
Example 2
The 0.9mm substrate is subjected to hot dip aluminum plating at 660 ℃, the plating solution comprises 9% of Si,2.5% of Fe, the balance of Al and unavoidable impurities, the steel plate coated with the aluminum-silicon alloy coating is continuously blanked into a blank with a certain shape, the blank is subjected to heat treatment, the specific heat treatment parameters are shown in table 2, and the ratio of the thickness of the diffusion layer to the thickness of the aluminum-silicon alloy coating is 0.3.
Example 3
Carrying out hot dip aluminum plating on a 1.0mm substrate at 660 ℃, wherein the plating solution comprises 8.5% of Si,2.5% of Fe, the balance of Al and unavoidable impurities, continuously blanking a steel plate coated with an aluminum-silicon alloy coating into a blank with a certain shape, and carrying out heat treatment on the blank; the ratio of the thickness of the diffusion layer to the thickness of the aluminum-silicon alloy plating layer is 0.15.
Example 4
Carrying out hot dip aluminum plating on a 1.2mm substrate at 680 ℃, wherein the plating solution comprises 8.8% of Si,2.4% of Fe, the balance of Al and unavoidable impurities, continuously blanking a steel plate coated with an aluminum-silicon alloy coating into a blank with a certain shape, and carrying out heat treatment on the blank; the ratio of the thickness of the diffusion layer to the thickness of the aluminum-silicon alloy plating layer is 0.35.
Example 5
Carrying out hot dip aluminum plating on a 1.5mm substrate at 680 ℃, wherein the plating solution comprises 8.8% of Si,2.4% of Fe, the balance of Al and unavoidable impurities, continuously blanking a steel plate coated with an aluminum-silicon alloy coating into a blank with a certain shape, and carrying out heat treatment on the blank; the ratio of the thickness of the diffusion layer to the thickness of the aluminum-silicon alloy plating layer is 0.35.
Example 6
Carrying out hot dip aluminum plating on a 1.6mm substrate at 680 ℃, wherein the plating solution comprises 8.8% of Si,2.4% of Fe, the balance of Al and unavoidable impurities, continuously blanking a steel plate coated with an aluminum-silicon alloy coating into a blank with a certain shape, and carrying out heat treatment on the blank; the ratio of the thickness of the diffusion layer to the thickness of the aluminum-silicon alloy plating layer is 0.3.
Example 7
Carrying out hot dip aluminum plating on a 2.0mm substrate at 680 ℃, wherein the plating solution comprises 8.8% of Si,2.4% of Fe, the balance of Al and unavoidable impurities, continuously blanking a steel plate coated with an aluminum-silicon alloy coating into a blank with a certain shape, and carrying out heat treatment on the blank; the ratio of the thickness of the diffusion layer to the thickness of the aluminum-silicon alloy plating layer is 0.4.
TABLE 1 weight percent (wt%) of steel plate substrate components
TABLE 2
FIG. 1 shows the surface of a hot stamped part in a comparative example, where the aluminum silicon coating on the surface melts, resulting in a coating sticking roll.
FIG. 2 shows the surface of a hot stamped part in example 1 of the present invention, the surface of the aluminum-silicon alloy coating has no signs of melting and is fully alloyed.
FIG. 3 is a cross-sectional view of a plated layer of a hot stamped component according to example 1 of the invention. As can be seen from the figures: the Al-Si alloy coating comprises two layers, namely a surface alloy layer and a diffusion layer, the thickness ratio of the diffusion layer to the Al-Si alloy coating is about 0.25, and the substrate mainly comprises martensite.
Fig. 4 shows ranges of first, second and third heating and insulating sections when the thickness of the steel plate coated with the aluminum-silicon alloy coating layer is less than 1.5mm, wherein the first heating and insulating temperature and time are limited in a graph ABCD, the second heating and insulating temperature and time are limited in a graph EFGH, and the third heating and insulating temperature and time are limited in a graph IJKL.
FIG. 5 shows that when the thickness of the steel plate coated with the aluminum-silicon alloy coating layer is more than or equal to 1.5mm, the heating and heat-preserving temperature and time of the first heating and heat-preserving section are limited in a graph A 'B' C 'D', the heating and heat-preserving temperature and time of the second heating and heat-preserving section are limited in a graph E 'F' G 'H', and the heating and heat-preserving temperature and time of the third heating and heat-preserving section are limited in a graph I 'J' K 'L'.
Claims (7)
1. The manufacturing method of the hot stamping part with the aluminum-silicon alloy coating comprises the following steps: processing the steel plate coated with the aluminum-silicon alloy coating into a blank with a shape required by a part, performing heat treatment on the blank, and performing hot stamping forming; the method is characterized in that in the blank heat treatment, the blank is put into a heat treatment furnace for austenitizing heat treatment, and the blank heat treatment process comprises a first heating heat preservation section, a second heating heat preservation section and a third heating heat preservation section;
wherein:
when the thickness of the steel plate coated with the aluminum-silicon alloy coating is less than 1.5mm,
a first heating and insulating section, wherein a heating and insulating set temperature and set time are defined in a pattern ABCD, the pattern ABCD has a temperature and time range defined by a (750 ℃,30 s), B (750 ℃,90 s), C (870 ℃,90 s), D (870 ℃,30 s);
a second heating and holding section, the heating and holding set temperature and set time being defined within a pattern EFGH having a temperature and time range defined by E (875 ℃,60 s), F (875 ℃,240 s), G (930 ℃,150 s), H (930 ℃,30 s);
a third heating and insulating section, wherein the heating and insulating set temperature and set time are defined in a graph IJKL, and the graph IJKL has a temperature and time range defined by I (935 ℃,60 s), J (935 ℃,240 s), K (955 ℃,180 s) and L (955 ℃,30 s);
when the thickness of the steel plate coated with the aluminum-silicon alloy coating is more than or equal to 1.5mm,
a first heating and insulating section, wherein a heating and insulating set temperature and set time are defined in a graph A 'B' C 'D' which has a temperature and time range defined by A '(750 ℃,30 s), B' (750 ℃,90 s), C '(890 ℃,90 s) and D' (890 ℃,30 s);
a second heating and insulating section, wherein the heating and insulating set temperature and set time are defined in a graph E 'F' G 'H' which has a temperature and time range defined by E '(895 ℃,90 s), F' (895 ℃,270 s), G '(940 ℃,210 s) and H' (940 ℃,60 s);
a third heating and holding section, wherein the heating and holding set temperature and set time are defined in a graph I 'J' K 'L' with a temperature and time range defined by I '(945 ℃,60 s), J' (945 ℃,240 s), K '(955 ℃,180 s) and L' (955 ℃,30 s);
the time of the blank heat treatment process is not less than 150s and not more than 600s;
the blank heat treatment process adopts a heat treatment furnace, the oxygen content of the furnace atmosphere is not lower than 15%, and the dew point in the furnace is not higher than-5 ℃;
the steel plate coated with the aluminum-silicon alloy coating comprises a substrate and at least one surface of the substrate, wherein the weight average value of the aluminum-silicon alloy coating is 58-105 g/m 2 One side;
the surface of the hot stamping part is provided with a continuous alloy layer and a diffusion layer, and the ratio of the thickness of the diffusion layer to the thickness of the aluminum-silicon alloy plating layer is 0.08-0.5;
the tensile strength of the hot stamping part is 500-2000MPa, the spot welding intervals of the hot stamping part are all above 2KA, and the paint film adhesive force of the hot stamping part after electrophoretic coating is evaluated to be above 0 level.
2. The method for manufacturing a hot stamped component with aluminum-silicon alloy coating according to claim 1, wherein in the blank heat treatment process, the temperatures in the first, second and third heating and heat preserving sections are stepped temperature rise or one temperature is set.
3. The method for manufacturing a hot-stamped component with an aluminum-silicon alloy coating according to claim 1, wherein in the hot stamping forming process, the blank after heat treatment is quickly transferred to a die for stamping forming, the transfer time is 4-12 seconds, and the temperature of the blank before entering the die is not lower than 600 ℃; and cooling the die before stamping to ensure that the surface temperature of the die before stamping is lower than 100 ℃, and the cooling rate of the blank is higher than 30 ℃/s.
4. The method of manufacturing a hot stamped component with an aluminum-silicon alloy coating as claimed in claim 1, wherein the aluminum-silicon alloy coated steel sheet comprises a substrate and an aluminum-silicon alloy coating on at least one surface thereof, the substrate comprising the following components in percentage by weight: c:0.04-0.8%, si <1.2%, mn:0.1-5%, P <0.3%, S <0.1%, al <0.3%, ti <0.5%, B <0.1%, cr <3%, and Fe and unavoidable impurities as the rest.
5. The method for manufacturing a hot stamped component with an aluminum-silicon alloy coating according to claim 4, wherein the aluminum-silicon alloy coating comprises the following components in percentage by weight: si: 4-14%, fe:0 to 4 percent, and the balance of Al and unavoidable impurities.
6. The method for producing a hot stamped component with an aluminum-silicon alloy coating according to claim 4 or 5, wherein the weight average value of the aluminum-silicon alloy coating is 72 to 88g/m 2 One side.
7. A hot stamped component obtained by the method of manufacturing a hot stamped component with an aluminum-silicon alloy coating as claimed in any one of claims 1 to 6, characterized in that there are continuous alloy layers and diffusion layers on the surface of the hot stamped component, the ratio of the diffusion layer thickness to the aluminum-silicon alloy coating thickness being 0.08 to 0.5; the yield strength of the hot stamping part is 400-1300MPa, the tensile strength is 500-2000MPa, and the elongation is more than or equal to 4%; the spot welding intervals of the hot stamping parts are all above 2KA, and the paint film adhesive force of the hot stamping parts after electrophoretic coating is evaluated to be above 0 level.
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| CN201810896744 | 2018-08-08 | ||
| CN2018108967444 | 2018-08-08 | ||
| CN201811035118.2A CN109518114A (en) | 2018-08-08 | 2018-09-06 | The manufacturing method and hot stamping part of hot stamping part with alusil alloy coating |
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| CN201811035118.2A Division CN109518114A (en) | 2018-06-09 | 2018-09-06 | The manufacturing method and hot stamping part of hot stamping part with alusil alloy coating |
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| CN201811035118.2A Pending CN109518114A (en) | 2018-06-09 | 2018-09-06 | The manufacturing method and hot stamping part of hot stamping part with alusil alloy coating |
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| FI (1) | FI3770295T3 (en) |
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| CN117483561A (en) * | 2018-08-08 | 2024-02-02 | 宝山钢铁股份有限公司 | Method for manufacturing hot-stamped component with aluminum-silicon alloy coating and hot-stamped component |
| CN112877592B (en) * | 2019-11-29 | 2022-06-28 | 宝山钢铁股份有限公司 | Hot-formed part with excellent paint film adhesion and manufacturing method thereof |
| CN112877590A (en) * | 2019-11-29 | 2021-06-01 | 宝山钢铁股份有限公司 | Coated hot-formed part with excellent performance and manufacturing method thereof |
| DE202019107269U1 (en) * | 2019-12-30 | 2020-01-23 | C4 Laser Technology GmbH | Brake unit with wear and corrosion protection layer |
| CN111647802B (en) * | 2020-05-11 | 2021-10-22 | 首钢集团有限公司 | Preparation method of hot stamping component coated with aluminum-silicon alloy coating and product thereof |
| KR102240850B1 (en) * | 2020-07-10 | 2021-04-16 | 주식회사 포스코 | Manufacturing method of hot fress formed part having excellent productivity, weldability and formability |
| CN114807739A (en) | 2021-01-28 | 2022-07-29 | 宝山钢铁股份有限公司 | Aluminum-plated steel plate, hot-formed part and manufacturing method |
| CN115673074A (en) * | 2021-07-28 | 2023-02-03 | 宝山钢铁股份有限公司 | Preparation method of aluminum-silicon plated hot stamping steel part with pressure of more than 1500MPa and part |
| CN113814654A (en) * | 2021-08-20 | 2021-12-21 | 首钢集团有限公司 | Method for preparing hot forming part by using aluminum-containing coating hot forming plate |
| CN116000169A (en) * | 2021-10-21 | 2023-04-25 | 香港大学 | Hot stamping forming method for precoated steel plate |
| CN116851528A (en) * | 2022-03-28 | 2023-10-10 | 宝山钢铁股份有限公司 | Method for producing high-strength hot-stamped component with high cold bending properties, hot-stamped component |
| CN115156845A (en) * | 2022-06-16 | 2022-10-11 | 唐山钢铁集团高强汽车板有限公司 | Production method of galvanized hot forming steel for preventing coating from sticking to roller |
| CN116219271B (en) * | 2022-07-22 | 2024-01-09 | 宝山钢铁股份有限公司 | Aluminum-silicon plated steel sheet, thermoformed part and manufacturing method thereof |
| CN115318912A (en) * | 2022-07-28 | 2022-11-11 | 苏州普热斯勒先进成型技术有限公司 | Device and method for preparing hot stamping forming part |
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| DE3446794C1 (en) * | 1984-12-21 | 1986-01-02 | BWG Butzbacher Weichenbau GmbH, 6308 Butzbach | Process for the heat treatment of pearlitic rail steel |
| PL3587105T3 (en) * | 2006-10-30 | 2022-12-12 | Arcelormittal | Coated steel strips, methods of making the same, methods of using the same, stamping blanks prepared from the same, stamped products prepared from the same, and articles of manufacture which contain such a stamped product |
| CN100457956C (en) * | 2007-08-31 | 2009-02-04 | 成都银河动力股份有限公司 | Double-temperature heat treating process for Al-Si alloy piston material |
| WO2009090443A1 (en) * | 2008-01-15 | 2009-07-23 | Arcelormittal France | Process for manufacturing stamped products, and stamped products prepared from the same |
| DE102008006771B3 (en) * | 2008-01-30 | 2009-09-10 | Thyssenkrupp Steel Ag | A method of manufacturing a component from a steel product provided with an Al-Si coating and an intermediate of such a method |
| WO2010085983A1 (en) * | 2009-02-02 | 2010-08-05 | Arcelormittal Investigacion Y Desarrollo S.L. | Fabrication process of coated stamped parts and parts prepared from the same |
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| US9677145B2 (en) * | 2011-08-12 | 2017-06-13 | GM Global Technology Operations LLC | Pre-diffused Al—Si coatings for use in rapid induction heating of press-hardened steel |
| CN102605308A (en) * | 2012-04-19 | 2012-07-25 | 南京工程学院 | Environment-friendly production technology of steel cord by directly hot plating copper zinc alloy and production device thereof |
| KR101318060B1 (en) * | 2013-05-09 | 2013-10-15 | 현대제철 주식회사 | Hot stamping product with advanced toughness and method of manufacturing the same |
| EP3070187B1 (en) * | 2013-12-25 | 2019-10-30 | Nippon Steel Corporation | High-strength automobile part and method for manufacturing a high-strength automobile part |
| DE102015016656A1 (en) * | 2015-12-19 | 2017-06-22 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | A method of making a coated hot worked cured body and a body made by the method |
| DE102016201025A1 (en) * | 2016-01-25 | 2017-07-27 | Schwartz Gmbh | Heat treatment process and heat treatment device |
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| CN106466697B (en) * | 2016-08-12 | 2020-01-31 | 宝山钢铁股份有限公司 | Hot stamped Steel products with an aluminum or aluminum alloy coating and method for the production thereof |
| CN106734470B (en) * | 2017-01-05 | 2018-10-16 | 广东科学技术职业学院 | Automobile panel heat stamping and shaping method |
| US20180237878A1 (en) * | 2017-02-17 | 2018-08-23 | GM Global Technology Operations LLC | Systems, methods and devices for hot forming of steel alloy parts |
| DE102017115755A1 (en) * | 2017-07-13 | 2019-01-17 | Schwartz Gmbh | Method and device for heat treatment of a metallic component |
| CN117483561A (en) * | 2018-08-08 | 2024-02-02 | 宝山钢铁股份有限公司 | Method for manufacturing hot-stamped component with aluminum-silicon alloy coating and hot-stamped component |
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| DK3770295T3 (en) | 2023-10-30 |
| EP3770295A4 (en) | 2022-03-09 |
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| WO2020030200A1 (en) | 2020-02-13 |
| RU2764729C1 (en) | 2022-01-19 |
| EP3770295B1 (en) | 2023-08-16 |
| PT3770295T (en) | 2023-11-06 |
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| PL3770295T3 (en) | 2024-01-22 |
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