JP2020503439A - クラック抵抗性に優れた合金めっき鋼材及びその製造方法 - Google Patents
クラック抵抗性に優れた合金めっき鋼材及びその製造方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 57
- 239000010959 steel Substances 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000007747 plating Methods 0.000 claims abstract description 117
- 239000000463 material Substances 0.000 claims abstract description 41
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 70
- 239000011701 zinc Substances 0.000 claims description 50
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 48
- 229910052742 iron Inorganic materials 0.000 claims description 35
- 238000001816 cooling Methods 0.000 claims description 33
- 229910052725 zinc Inorganic materials 0.000 claims description 16
- 229910052749 magnesium Inorganic materials 0.000 claims description 14
- 241000446313 Lamella Species 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000010953 base metal Substances 0.000 claims 1
- 238000007598 dipping method Methods 0.000 claims 1
- 229910018134 Al-Mg Inorganic materials 0.000 abstract description 7
- 229910018467 Al—Mg Inorganic materials 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 6
- 229910007570 Zn-Al Inorganic materials 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 54
- 239000011777 magnesium Substances 0.000 description 25
- 230000007797 corrosion Effects 0.000 description 22
- 238000005260 corrosion Methods 0.000 description 22
- 238000012360 testing method Methods 0.000 description 13
- 229910017706 MgZn Inorganic materials 0.000 description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 229910000905 alloy phase Inorganic materials 0.000 description 5
- 238000005452 bending Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 239000008397 galvanized steel Substances 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910009369 Zn Mg Inorganic materials 0.000 description 1
- 229910007573 Zn-Mg Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 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
-
- 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
-
- 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
- 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
-
- 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
-
- 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
- C23C2/261—After-treatment in a gas atmosphere, e.g. inert or reducing atmosphere
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—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
- C23C2/38—Wires; Tubes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
Abstract
Description
下記表1に示すように、0.7mmの厚さを有する冷延素地鉄の試験片に対して、Mg:0.8〜2.2%、Al:0.8〜2.7%を含有したZn合金めっき浴に浸漬してめっきを行い、片面めっき量40g/m2でめっき付着量を調節した。上記めっき付着量は、ガスノズルを用いてガスを噴射し、表面に圧力を加えることで調節した。
2 めっき浴
3 めっき付着量制御機
4 冷却手段
5 温度測定器
Claims (8)
- 素地鉄、及び前記素地鉄の少なくとも一面に形成された亜鉛合金めっき層を含む合金めっき鋼材であって、
前記亜鉛合金めっき層は、重量%で、Mg:0.5〜2.5%、Al:0.5〜3.0%、残部Zn及び不可避不純物を含み、
前記亜鉛合金めっき層は、Zn単相及びZnとMgの混合相を含み、前記ZnとMgの混合相は、Zn相とMg−Zn合金相がラメラ構造を有し、前記ラメラ構造の平均幅は1.5μm以下である、クラック抵抗性に優れた合金めっき鋼材。 - 前記ラメラ構造の長さ方向は、素地鉄と亜鉛合金めっき層の垂直方向と45°以上で形成される、請求項1に記載のクラック抵抗性に優れた合金めっき鋼材。
- 前記ラメラ構造の長さ方向が、素地鉄と亜鉛合金めっき層の垂直方向と45°以上で形成されたラメラ構造は、全体ラメラ構造の30〜100%である、請求項2に記載のクラック抵抗性に優れた合金めっき鋼材。
- 前記亜鉛合金めっき層のうちZn相の硬度はHv80〜130であり、Mg−Zn合金相の硬度はHv250〜300である、請求項1に記載のクラック抵抗性に優れた合金めっき鋼材。
- 重量%で、Mg:0.5〜2.5%、Al:0.5〜3.0%、残部Zn及び不可避不純物を含む亜鉛合金めっき浴を設ける段階と、
前記亜鉛合金めっき浴に素地鉄を浸漬してめっきを行う段階と、
前記亜鉛合金めっき浴から抽出した後、鋼材の中央部の温度を435℃以下まで冷却する段階と、を含み、
前記冷却後の鋼材の中央部とエッジ部の温度差は25℃以下である、加工クラック抵抗性に優れた合金めっき鋼材の製造方法。 - 前記冷却の際の冷却速度は2〜5℃/sである、請求項5に記載の加工クラック抵抗性に優れた合金めっき鋼材の製造方法。
- 前記亜鉛合金めっき浴の温度は440〜470℃であり、引き込まれる素地鉄は前記亜鉛合金めっき浴の温度よりも5〜30℃高い、請求項5に記載の加工クラック抵抗性に優れた合金めっき鋼材の製造方法。
- 前記亜鉛合金めっき浴の表面上の雰囲気は、10体積%以下の酸素と残りは不活性ガスを含む、請求項5に記載の加工クラック抵抗性に優れた合金めっき鋼材の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020160177200A KR101858862B1 (ko) | 2016-12-22 | 2016-12-22 | 크랙 저항성이 우수한 합금도금강재 및 그 제조방법 |
KR10-2016-0177200 | 2016-12-22 | ||
PCT/KR2017/015276 WO2018117702A1 (ko) | 2016-12-22 | 2017-12-21 | 크랙 저항성이 우수한 합금도금강재 및 그 제조방법 |
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JP2019533319A Pending JP2020503439A (ja) | 2016-12-22 | 2017-12-21 | クラック抵抗性に優れた合金めっき鋼材及びその製造方法 |
Country Status (7)
Country | Link |
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US (1) | US11505858B2 (ja) |
EP (1) | EP3561136A4 (ja) |
JP (1) | JP2020503439A (ja) |
KR (1) | KR101858862B1 (ja) |
CN (1) | CN110100035B (ja) |
MX (1) | MX2019007486A (ja) |
WO (1) | WO2018117702A1 (ja) |
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KR102209546B1 (ko) | 2018-12-19 | 2021-01-29 | 주식회사 포스코 | 광택도 및 표면특성이 우수한 도금강판 및 그 제조방법 |
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- 2016-12-22 KR KR1020160177200A patent/KR101858862B1/ko active IP Right Grant
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2017
- 2017-12-21 EP EP17884745.5A patent/EP3561136A4/en active Pending
- 2017-12-21 CN CN201780079204.0A patent/CN110100035B/zh active Active
- 2017-12-21 JP JP2019533319A patent/JP2020503439A/ja active Pending
- 2017-12-21 WO PCT/KR2017/015276 patent/WO2018117702A1/ko unknown
- 2017-12-21 MX MX2019007486A patent/MX2019007486A/es unknown
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Also Published As
Publication number | Publication date |
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CN110100035A (zh) | 2019-08-06 |
EP3561136A4 (en) | 2019-12-25 |
US11505858B2 (en) | 2022-11-22 |
CN110100035B (zh) | 2022-03-22 |
MX2019007486A (es) | 2019-11-05 |
EP3561136A1 (en) | 2019-10-30 |
US20200017947A1 (en) | 2020-01-16 |
WO2018117702A1 (ko) | 2018-06-28 |
KR101858862B1 (ko) | 2018-05-17 |
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