JP5865377B2 - 金属コーティング鋼板、溶融亜鉛めっき鋼板及びこれらの製造方法 - Google Patents
金属コーティング鋼板、溶融亜鉛めっき鋼板及びこれらの製造方法 Download PDFInfo
- Publication number
- JP5865377B2 JP5865377B2 JP2013534827A JP2013534827A JP5865377B2 JP 5865377 B2 JP5865377 B2 JP 5865377B2 JP 2013534827 A JP2013534827 A JP 2013534827A JP 2013534827 A JP2013534827 A JP 2013534827A JP 5865377 B2 JP5865377 B2 JP 5865377B2
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- steel sheet
- metal
- hot
- dip galvanized
- weight
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 title claims description 100
- 239000010959 steel Substances 0.000 title claims description 100
- 239000002184 metal Substances 0.000 title claims description 79
- 229910052751 metal Inorganic materials 0.000 title claims description 79
- 229910001335 Galvanized steel Inorganic materials 0.000 title claims description 31
- 239000008397 galvanized steel Substances 0.000 title claims description 31
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 229910052748 manganese Inorganic materials 0.000 claims description 43
- 238000000576 coating method Methods 0.000 claims description 34
- 239000011248 coating agent Substances 0.000 claims description 33
- 239000011247 coating layer Substances 0.000 claims description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 24
- 239000001301 oxygen Substances 0.000 claims description 24
- 229910052760 oxygen Inorganic materials 0.000 claims description 24
- 238000007747 plating Methods 0.000 claims description 16
- 239000010410 layer Substances 0.000 claims description 15
- 229910052804 chromium Inorganic materials 0.000 claims description 14
- 238000005246 galvanizing Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052718 tin Inorganic materials 0.000 claims description 5
- 238000005275 alloying Methods 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 80
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 238000000137 annealing Methods 0.000 description 16
- 238000005755 formation reaction Methods 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 14
- 150000002500 ions Chemical class 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 229910044991 metal oxide Inorganic materials 0.000 description 10
- 150000004706 metal oxides Chemical class 0.000 description 10
- 238000009792 diffusion process Methods 0.000 description 7
- GNRSAWUEBMWBQH-UHFFFAOYSA-N nickel(II) oxide Inorganic materials [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910000480 nickel oxide Inorganic materials 0.000 description 5
- 238000006722 reduction reaction Methods 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 4
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 4
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010406 interfacial reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 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
-
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
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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
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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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- C23C2/04—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
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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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- 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
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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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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12951—Fe-base component
- Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12951—Fe-base component
- Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]
- Y10T428/12979—Containing more than 10% nonferrous elements [e.g., high alloy, stainless]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
- Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
Description
本発明の効果を発生させる鋼種には制限がないが、Mn、SiまたはAlの表面酸化物の形成を抑制することが主な目的であるため、Mn、SiまたはAlが0.2重量%以上含まれた鋼に適用することが効果を極大化するのに好ましく、本実験では、Si:1.0重量%、Mn:1.6重量%、Al:0.03重量%が含まれた厚さ1.2mmのTRIP冷延材を対象とした。
◎(極めて優秀、めっき鋼板全体にわたって未めっきが全くない鋼板)
○(優秀、0.5mm未満の点状の未めっきが少し観察される鋼板)
△(不良、0.5mm〜2mmの点状の未めっきが多く観察される鋼板)
X(極めて不良、2mmを超える大きさの未めっきが観察される鋼板)
Claims (14)
- 素地鋼板上に、ギブズ自由エネルギーがFe以上の金属及び上記金属の酸化物を含むコーティング層を有し、
前記金属はNi、Co、Cu、Sn及びSbからなる群より選択される1種であり、
前記金属の酸化物は酸素換算量で0.5〜5重量%であり、
前記金属及び前記金属の酸化物は前記金属の換算量で0.1〜3g/m 2 である、ことを特徴とする金属コーティング鋼板。 - 前記鋼板はSi、Mn及びAlからなる群より選択される1種以上を0.2重量%以上含み、Ti、B及びCrからなる群より選択される1種以上を0.01重量%以上さらに含むことを特徴とする請求項1に記載の金属コーティング鋼板。
- 請求項1に記載の金属コーティング鋼板のコーティング層上に溶融亜鉛めっき層を有する溶融亜鉛めっき鋼板であり、前記溶融亜鉛めっき鋼板のGDSグラフ上で、前記金属のピークが酸素のピークより溶融亜鉛めっき層に近く位置することを特徴とする溶融亜鉛めっき鋼板。
- 前記酸素のピークにおける酸素含量が0.05〜1重量%であることを特徴とする請求項3に記載の溶融亜鉛めっき鋼板。
- 前記鋼板はSi、Mn及びAlからなる群より選択される1種以上を0.2重量%以上含み、Ti、B及びCrからなる群より選択される1種以上を0.01重量%以上さらに含むことを特徴とする請求項3又は4に記載の溶融亜鉛めっき鋼板。
- 請求項1又は2に記載の金属コーティング鋼板の製造方法に関するもので、
前記金属はNiであり、
素地鋼板の表面をNi2+のモル濃度がSO4 2−のモル濃度の0.7〜1.2倍で、Ni2+濃度が20〜90g/Lで、Ni(OH)2濃度がNi換算量で1g/L以下の溶液でコーティングすることを特徴とする金属コーティング鋼板の製造方法。 - 前記溶液のPHが4〜6であることを特徴とする請求項6に記載の金属コーティング鋼板の製造方法。
- 前記鋼板はSi、Mn及びAlからなる群より選択される1種以上を0.2重量%以上含み、Ti、B及びCrからなる群より選択される1種以上を0.01重量%以上さらに含むことを特徴とする請求項6又は7に記載の金属コーティング鋼板の製造方法。
- 請求項3〜5の何れか1項に記載の金属コーティング層上に溶融亜鉛めっき層を有する溶融亜鉛めっき鋼板の製造方法に関するもので、
前記金属はNiであり、
素地鋼板の表面をNi2+のモル濃度がSO4 2−のモル濃度の0.7〜1.2倍で、Ni2+濃度が20〜90g/Lで、Ni(OH)2濃度がNi換算量で1g/L以下の溶液でコーティングする段階と、前記コーティングした鋼板を加熱する段階と、前記加熱した鋼板を冷却する段階と、前記焼鈍した鋼板を溶融亜鉛めっきする段階と、を含むことを特徴とする溶融亜鉛めっき鋼板の製造方法。 - 前記溶液のPHが4〜6であることを特徴とする請求項9に記載の溶融亜鉛めっき鋼板の製造方法。
- 前記加熱する段階は750〜900℃で行うことを特徴とする請求項9に記載の溶融亜鉛めっき鋼板の製造方法。
- 前記溶融亜鉛めっきする段階は440〜480℃のめっき浴で行うことを特徴とする請求項9に記載の溶融亜鉛めっき鋼板の製造方法。
- 前記鋼板はSi、Mn及びAlからなる群より選択される1種以上を0.2重量%以上含み、Ti、B及びCrからなる群より選択される1種以上を0.01重量%以上さらに含むことを特徴とする請求項9に記載の溶融亜鉛めっき鋼板の製造方法。
- 前記溶融亜鉛めっきする段階後に前記溶融亜鉛めっきした鋼板を480〜600℃で合金化熱処理する段階をさらに含むことを特徴とする請求項9〜13の何れか1項に記載の溶融亜鉛めっき鋼板の製造方法。
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