JP2018538446A - 微細で均一なメッキ組織を有するメッキ鋼板およびメッキ鋼板の製造方法 - Google Patents
微細で均一なメッキ組織を有するメッキ鋼板およびメッキ鋼板の製造方法 Download PDFInfo
- Publication number
- JP2018538446A JP2018538446A JP2018532720A JP2018532720A JP2018538446A JP 2018538446 A JP2018538446 A JP 2018538446A JP 2018532720 A JP2018532720 A JP 2018532720A JP 2018532720 A JP2018532720 A JP 2018532720A JP 2018538446 A JP2018538446 A JP 2018538446A
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- JP
- Japan
- Prior art keywords
- cooling
- steel sheet
- plated
- plating
- plating layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000007747 plating Methods 0.000 title claims abstract description 363
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 335
- 239000010959 steel Substances 0.000 title claims abstract description 335
- 238000004519 manufacturing process Methods 0.000 title claims description 32
- 238000001816 cooling Methods 0.000 claims description 289
- 239000010410 layer Substances 0.000 claims description 272
- 239000007788 liquid Substances 0.000 claims description 88
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 22
- 229910017708 MgZn2 Inorganic materials 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 13
- 239000001307 helium Substances 0.000 claims description 12
- 229910052734 helium Inorganic materials 0.000 claims description 12
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 8
- 239000002344 surface layer Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 229910018134 Al-Mg Inorganic materials 0.000 claims description 4
- 229910018467 Al—Mg Inorganic materials 0.000 claims description 4
- 238000009827 uniform distribution Methods 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000001788 irregular Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 239000013078 crystal Substances 0.000 abstract description 7
- 239000011701 zinc Substances 0.000 description 64
- 230000000052 comparative effect Effects 0.000 description 30
- 230000008569 process Effects 0.000 description 20
- 230000007547 defect Effects 0.000 description 16
- 239000003507 refrigerant Substances 0.000 description 13
- 230000007797 corrosion Effects 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 12
- 238000005246 galvanizing Methods 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 229910052725 zinc Inorganic materials 0.000 description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 9
- 239000011777 magnesium Substances 0.000 description 9
- 238000010791 quenching Methods 0.000 description 8
- 229910052749 magnesium Inorganic materials 0.000 description 6
- 230000003746 surface roughness Effects 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000000635 electron micrograph Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 238000010583 slow cooling Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 229910017706 MgZn Inorganic materials 0.000 description 1
- 235000002597 Solanum melongena Nutrition 0.000 description 1
- 244000061458 Solanum melongena Species 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
-
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
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- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
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- 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
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- C23C2/0034—Details related to elements immersed in bath
- C23C2/00342—Moving elements, e.g. pumps or mixers
- C23C2/00344—Means for moving substrates, e.g. immersed rollers or immersed bearings
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- 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
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- C—CHEMISTRY; METALLURGY
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- 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
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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
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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
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- 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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- 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
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- 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
- 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
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- 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
- C23C28/023—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 only coatings of metal elements only
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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
- C23C28/023—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 only coatings of metal elements only
- C23C28/025—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 only coatings of metal elements only with at least one zinc-based layer
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
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- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
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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
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- C—CHEMISTRY; METALLURGY
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
以下、本実施例によるメッキ鋼板を製造するための製造装置を説明する。
以下、本実施例によるメッキ鋼板を製造するための工程について説明する。
一般のGIメッキと、Zn(亜鉛)、Al(アルミニウム)、Mg(マグネシウム)を活用したメッキ(以下、PosMACメッキという)に対して、従来の冷却方式と本実施例による冷却方式でメッキ層を形成してメッキ鋼板を製造し、組織を比較した。
PosMACメッキ鋼板に対して従来のガスによる徐冷方式で製造した比較例と、本発明により急冷して製造された実施例に対してメッキ層の特性を比較した。
図16は、PosMACメッキ鋼板に対して、従来のガスによる徐冷方式で製造した比較例と、本発明により急冷して製造された実施例に対する耐食性実験の結果を示している。
図17は、メッキ層表面に形成された一定の形態の接触式加圧冷却パターンを有する多様な実施例のメッキ鋼板を示している。
12:シンクロール
20、21:ナイフ
22:ボディ
23:回転体
24:チップ部
25:駆動ベルト
26、42、64:流路
27:ステップモータ
30:ロードセンサ
32:制御部
34:駆動部
40:チルロール
50:冷媒供給部
60:冷却体
62:冷却ロール
66:冷却ベルト
68:駆動シリンダ
Claims (24)
- 鋼板上に溶融メッキ後、接触式加圧冷却で形成されたZn系メッキ層を含み、
前記Zn系メッキ層は、平均粒度5μm以下のZn単相組織を含み、
前記メッキ層内のZn単相の分布度B/Aが0.5〜1.0の条件を満足して、メッキ層の厚さ方向に対してZn単相が均一な分布で形成された、微細で均一なメッキ組織を有するメッキ鋼板。
ここで、Aは、メッキ層の厚さ方向に対する全Zn単相の分率であり、Bは、メッキ層の外側表層部でのZn単相の分率である。 - 前記メッキ層のZn単相の分率は、15〜40面積%である、請求項1に記載の微細で均一なメッキ組織を有するメッキ鋼板。
- 前記メッキ層のスパングルの大きさは、300〜500μmである、請求項2に記載の微細で均一なメッキ組織を有するメッキ鋼板。
- 前記メッキ層は、表面に接触式加圧冷却パターンを有する、請求項1〜3のいずれか1項に記載の微細で均一なメッキ組織を有するメッキ鋼板。
- 前記接触式加圧冷却パターンは、製織された布状、網状、または不規則に線の絡まった形状である、請求項4に記載の微細で均一なメッキ組織を有するメッキ鋼板。
- 前記メッキ層は、Mg成分をさらに含み、
前記メッキ層内にMgZn2相を含む、請求項1〜3のいずれか1項に記載の微細で均一なメッキ組織を有するメッキ鋼板。 - 前記MgZn2相の(112)/(201)の比率が0.6以上で形成された、請求項6に記載の微細で均一なメッキ組織を有するメッキ鋼板。
- 前記メッキ層は、Al成分をさらに含むZn−Al−Mg合金メッキ層である、請求項7に記載の微細で均一なメッキ組織を有するメッキ鋼板。
- 前記メッキ層の厚さは、5〜50μmである、請求項7に記載の微細で均一なメッキ組織を有するメッキ鋼板。
- 鋼板をメッキするメッキ段階と、鋼板のメッキ付着量を調節する調節段階と、鋼板を冷却する冷却段階とを含み、
前記冷却段階は、鋼板表面のメッキ層に接触する冷却体で鋼板に冷気を加えて鋼板を冷却する段階と、前記冷却体に液体窒素や液体ヘリウムを含む極低温液体を供給して冷却体を冷却する段階とを含む、メッキ鋼板の製造方法。 - 前記調節段階は、鋼板表面のメッキ層に接触するナイフでメッキ付着量を一次調節する段階と、前記ナイフに液体窒素や液体ヘリウムを含む極低温液体を供給してナイフを冷却する段階とを含む、請求項10に記載のメッキ鋼板の製造方法。
- 前記調節段階は、鋼板表面のメッキ層に密着するチルロールでメッキ付着量を二次制御し鋼板を冷却する段階と、前記チルロールに液体窒素や液体ヘリウムを含む極低温液体を供給してチルロールを冷却する段階とをさらに含む、請求項11に記載のメッキ鋼板の製造方法。
- 鋼板をメッキするメッキ段階と、鋼板のメッキ付着量を調節する調節段階と、鋼板を冷却する冷却段階とを含み、
前記調節段階は、鋼板表面のメッキ層に接触するナイフでメッキ付着量を一次調節する段階と、前記ナイフに液体窒素や液体ヘリウムを含む極低温液体を供給してナイフを冷却する段階とを含む、メッキ鋼板の製造方法。 - 前記調節段階は、鋼板表面のメッキ層に密着するチルロールでメッキ付着量を二次制御し鋼板を冷却する段階と、前記チルロールに液体窒素や液体ヘリウムを含む極低温液体を供給してチルロールを冷却する段階とをさらに含む、請求項13に記載のメッキ鋼板の製造方法。
- 前記調節段階は、鋼板に対するナイフまたはチルロールの接触荷重を検出する段階と、検出された接触荷重に応じて鋼板に対するナイフまたはチルロールの加圧力を制御する段階とをさらに含む、請求項12または14に記載のメッキ鋼板の製造方法。
- 前記冷却段階は、鋼板に対する冷却体の接触荷重を検出する段階と、検出された接触荷重に応じて鋼板に対する冷却体の加圧力を制御する段階とをさらに含む、請求項10〜12のいずれか1項に記載のメッキ鋼板の製造方法。
- 前記調節段階と冷却段階は、鋼板の移動方向に沿って鋼板のメッキ層の厚さを次第に低減する、請求項10〜14のいずれか1項に記載のメッキ鋼板の製造方法。
- 前記調節段階または冷却段階で使用された液体窒素による排出ガスを、熱処理炉内の還元ガスまたは冷却工程の雰囲気維持用ガスとして使用する段階をさらに含む、請求項10〜14のいずれか1項に記載のメッキ鋼板の製造方法。
- 前記調節段階において、ナイフのチップ部は、−250〜5℃の温度に維持される、請求項11〜14のいずれか1項に記載のメッキ鋼板の製造方法。
- 前記調節段階において、チルロールは、−250〜5℃の温度に維持される、請求項12または14に記載のメッキ鋼板の製造方法。
- 前記冷却段階において、冷却体は、−250〜5℃の温度に維持される、請求項10〜12のいずれか1項に記載のメッキ鋼板の製造方法。
- 前記メッキ鋼板は、20℃/sec以上の冷却速度で急冷される、請求項10〜14のいずれか1項に記載のメッキ鋼板の製造方法。
- 前記メッキ鋼板は、20℃/sec以上の冷却速度で250℃以下の温度まで急冷される、請求項21に記載のメッキ鋼板の製造方法。
- 前記冷却段階において、冷却体表面に形成されたパターンをメッキ層に転写して、メッキ層表面にパターンを形成する段階をさらに含む、請求項21に記載のメッキ鋼板の製造方法。
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CN108779542A (zh) | 2018-11-09 |
CN108779542B (zh) | 2020-08-14 |
EP3396009B1 (en) | 2024-02-07 |
KR101847567B1 (ko) | 2018-04-10 |
KR20170076546A (ko) | 2017-07-04 |
EP3396009A1 (en) | 2018-10-31 |
JP6876053B2 (ja) | 2021-05-26 |
EP3396009A4 (en) | 2019-01-16 |
JP7093866B2 (ja) | 2022-06-30 |
US11168389B2 (en) | 2021-11-09 |
US20180371598A1 (en) | 2018-12-27 |
JP2021091973A (ja) | 2021-06-17 |
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