JP6744923B2 - 金属被覆鋼板を製造するための方法 - Google Patents
金属被覆鋼板を製造するための方法 Download PDFInfo
- Publication number
- JP6744923B2 JP6744923B2 JP2018554689A JP2018554689A JP6744923B2 JP 6744923 B2 JP6744923 B2 JP 6744923B2 JP 2018554689 A JP2018554689 A JP 2018554689A JP 2018554689 A JP2018554689 A JP 2018554689A JP 6744923 B2 JP6744923 B2 JP 6744923B2
- Authority
- JP
- Japan
- Prior art keywords
- volume
- less
- gas
- steel sheet
- atmosphere
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 69
- 239000010959 steel Substances 0.000 title claims description 69
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229910052751 metal Inorganic materials 0.000 title claims description 8
- 239000002184 metal Substances 0.000 title claims description 8
- 239000007789 gas Substances 0.000 claims description 38
- 238000010438 heat treatment Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 30
- 238000002791 soaking Methods 0.000 claims description 29
- 239000011261 inert gas Substances 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 20
- 238000000137 annealing Methods 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 18
- 238000011067 equilibration Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 14
- 239000011701 zinc Substances 0.000 claims description 13
- 229910052725 zinc Inorganic materials 0.000 claims description 11
- 238000003618 dip coating Methods 0.000 claims description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052743 krypton Inorganic materials 0.000 claims description 2
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052754 neon Inorganic materials 0.000 claims description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052724 xenon Inorganic materials 0.000 claims description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 30
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 11
- 235000013980 iron oxide Nutrition 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- -1 zinc aluminum magnesium Chemical compound 0.000 description 2
- 238000013316 zoning Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000794 TRIP steel Inorganic materials 0.000 description 1
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel 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
- 230000032798 delamination Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- 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
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
-
- 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
- C23C2/003—Apparatus
- C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
-
- 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
- C23C2/003—Apparatus
- C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
- C23C2/004—Snouts
-
- 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
- C23C2/0222—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising 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
- C23C2/02—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
-
- 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
- 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
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
-
- 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
-
- 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
-
- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Description
(2)Fe2O3+3H2→2Fe(0)+3H2O及び
(3)Fe3O4+4H2→4H2O+3Fe(0)
主にFe3O4が表面に存在するが、Fe2O3及びFeOもまた観察され得る。
−鋼組成物のすべてのパーセンテージ「%」は重量基準である。
Mn≦6.0%、
Si≦3.0%、
0.02≦Cr≦2.0%、
0.01≦Al≦4.0%、
Nb≦0.2%、
Ti≦0.4%、
Mo≦1.0%、
Ni≦3.0%、
0.00001≦B≦0.1%、
残部は鉄、及び鋼の製造からの不可避の不純物である。
A.
1)少なくとも1種の不活性ガスで構成され、かつ3.0体積%以下のH2を含む雰囲気A1を含む予熱区間内で圧力P1で行われる予熱ステップであって、A1の露点DP1が−20℃未満であり、かかる区間が、鋼板の進入を可能にするための少なくとも1つの開口部O1を備える、ステップ、
2)少なくとも1種の不活性ガスで構成され、かつ0.5体積%以下のH2を含む雰囲気A2を含む加熱区間内で、P1より高い圧力P2で行われる加熱ステップであって、A2の露点DP2が−40℃未満であり、少なくとも不活性ガスを含む流入ガスが、加熱区間内に連続的に注入される、ステップ、
3)少なくとも1種の不活性ガスで構成され、かつ3.0体積%以下のH2を含む雰囲気A3を含む均熱区間内で、P2より低い圧力P3で行われる均熱ステップであって、A3の露点DP3が−40℃未満であり、かかる区間が、少なくとも1つの開口部O3を備えるステップ、
4)少なくとも1種の不活性ガスで構成され、かつ少なくとも1.0体積%のH2を含む雰囲気A4を含む冷却区間内で、大気圧より高い圧力P4で行われる冷却ステップであって、A4の露点DP4が−30℃未満であるステップ、
5)任意選択で、少なくとも1種の不活性ガスで構成され、かつ少なくとも2.0体積%のH2を含む雰囲気A5を含む平衡化区間内で圧力P5で行われる平衡化ステップであって、A5の露点DP5が−30℃未満であり、かかる区間が、少なくとも1つの開口部O5を備えるステップ、及び
6)鋼板を溶融めっき被覆ステップに向けて誘導するために、少なくとも1種の不活性ガスで構成され、かつ少なくとも2.0体積%のH2を含む雰囲気A6を含む高温ブライドル区間内で圧力P6で行われる移送ステップであって、A6の露点DP6が−30℃未満であり、かかる区画が、任意選択で少なくとも1つの開口部O6を備えるステップ
を含む、連続焼鈍炉内での鋼板の連続焼鈍ステップであって、A2は、予熱及び均熱区間に向けて連続的に除去され、A1及びA3が、それぞれO1及びO3を介して定期的又は連続的に炉の外に排出され、A6、又はA5及びA6が、それぞれO6又はO5を介して炉の外に定期的又は連続的に排出される、連続焼鈍ステップ、
B.溶融めっき被覆ステップ
を連続的に含む方法に関する。
(2)Fe2O3+3C→3CO+2Fe(0)及び
(3)Fe3O4+4C→4CO+3Fe(0)
−亜鉛被覆:0.3%までのAl、鉄飽和、残りはZn、
−亜鉛系被覆:0.1〜8.0%のAl、0.2〜8.0%のMg、鉄飽和、残りはZn、又は
−15%未満のSi、5.0%未満のFe、任意選択でMg及びZnを含み、残りがAlであるアルミニウム系被覆。
連続焼鈍
図1に示すこの試験は、本発明による方法の効率を決定するために使用される。Gは、焼鈍炉内に存在するガスの流れを意味する。
Claims (20)
- 被覆鋼板を製造するための方法であって、以下の:
A.
1)少なくとも1種の不活性ガスで構成され、かつ0.0体積%以上、3.0体積%以下のH2を含む雰囲気A1を含む予熱区間内で圧力P1で行われる予熱ステップであって、A1の露点DP1が−20℃未満であり、かかる区間が、鋼板の進入を可能にするための少なくとも1つの開口部O1を備え、当該予熱ステップが、鋼板を周囲温度から温度T1に加熱することにより行われ、T1が、200〜350℃の間である、ステップ、
2)少なくとも1種の不活性ガスで構成され、かつ0.0体積%以上、0.5体積%以下のH2を含む雰囲気A2を含む加熱区間内で、P1より高い圧力P2で行われる加熱ステップであって、A2の露点DP2が−40℃未満であり、少なくとも不活性ガスを含む流入ガスが、前記加熱区間内に連続的に注入され、当該加熱ステップが、前記鋼板をT1からT2に加熱することにより行われ、T2が、600〜1000℃の間である、ステップ、
3)少なくとも1種の不活性ガスで構成され、かつ0.0体積%以上、3.0体積%以下のH2を含む雰囲気A3を含む均熱区間内で、P2より低い圧力P3で行われる均熱ステップであって、A3の露点DP3が−40℃未満であり、かかる区間が、少なくとも1つの開口部O3を備え、該開口部O3は、炉外へガスを排出する開口であり、鋼板が、温度T2から均熱温度T3に変えられ、T3が、600〜1000℃の間である、ステップ、
4)少なくとも1種の不活性ガスで構成され、かつ少なくとも1.0体積%のH2を含む雰囲気A4を含む冷却区間内で、大気圧より高い圧力P4で行われる冷却ステップであって、A4の露点DP4が−30℃未満であり、鋼板がT3から400〜800℃間の温度T4に冷却される、ステップ、
5)任意選択で、少なくとも1種の不活性ガスで構成され、かつ少なくとも2.0体積%のH2を含む雰囲気A5を含む平衡化区間内で圧力P5で行われる平衡化ステップであって、A5の露点DP5が−30℃未満であり、かかる区間が、少なくとも1つの開口部O5を備え、平衡化ステップが、400〜800℃の間の温度T5で行われる、ステップ、及び
6)前記鋼板を溶融めっき被覆ステップに向けて誘導するために、少なくとも1種の不活性ガスで構成され、かつ少なくとも2.0体積%のH2を含む雰囲気A6を含む高温ブライドル区間内で圧力P6で行われる移送ステップであって、A6の露点DP6が−30℃未満であり、かかる区画が、少なくとも1つの開口部O6を備え、移送ステップが、400〜800℃の間の温度T5で行われる、ステップ
を含む、1つの連続した焼鈍炉内での鋼板の連続焼鈍ステップであって、予熱ステップ、加熱ステップ、均熱ステップ、冷却ステップ、任意の平衡化ステップ及び移送ステップは、1つの連続した焼鈍炉内で行われ、A2が、前記予熱及び均熱区間に向けて連続的に除去され、A1及びA3が、それぞれO1及びO3を介して定期的又は連続的に前記炉の外に排出され、A6、又はA5及びA6が、それぞれO6又はO5を介して前記炉の外に定期的又は連続的に排出され、連続炉の流入ガスは、加熱区間から来て均熱区間を通って移動するガスである、連続焼鈍ステップ、
B.溶融めっき被覆ステップ、
を連続的に含む方法。 - 連続炉の流入ガスに対するO1を介して除去される流出ガスの流れのパーセンテージが、15体積%以上であり、前記連続炉の流入ガスに対するO3を通る流出ガスの流れのパーセンテージが、25体積%以上である、請求項1に記載の方法。
- 連続炉の流入ガスに対するO3を通る流出ガスの流れのパーセンテージが、30体積%以上である、請求項1又は2に記載の方法。
- 雰囲気A1及びA3が、1.0体積%以下の量のH2を含む、請求項1〜3のいずれか一項に記載の方法。
- 雰囲気A1及びA3が、0.5体積%以下の量のH2を含む、請求項4に記載の方法。
- A1、A2及びA3から選択される雰囲気の少なくとも1つが、0.25体積%以下の量のH2を含む、請求項1〜5のいずれか一項に記載の方法。
- 露点DP1が、−30℃未満である、請求項1〜6のいずれか一項に記載の方法。
- DP1が、−40℃未満である、請求項7に記載の方法。
- DP1、DP2及びDP3から選択される露点の少なくとも1つが、−50℃未満である、請求項1〜8のいずれか一項に記載の方法。
- DP4、DP5及びDP6から選択される露点の少なくとも1つが、−40℃未満である、請求項1〜9のいずれか一項に記載の方法。
- P4が、P3よりも高く、A4が、均熱区間の開口部O3に向かって連続的に除去される、請求項1〜10のいずれか一項に記載の方法。
- P4が、P3よりも低く、A4が、高温ブライドル又は平衡化区間に向かって連続的に除去される、請求項1〜10のいずれか一項に記載の方法。
- 冷却ステップ4)が、少なくとも10体積%のH2を含む雰囲気A4中で行われる、請求項1〜12のいずれか一項に記載の方法。
- 高温ブライドル区間又は平衡化領域において、連続炉の流入ガスに対するO5又はO6を通って除去される流出ガスの流れのパーセンテージが、15体積%以上である、請求項1〜13のいずれか一項に記載の方法。
- 不活性ガスが、予熱領域、均熱区間、又はその両方に連続的に注入される、請求項1〜14のいずれか一項に記載の方法。
- 不活性ガス及びH2が、冷却区間、平衡化区間及び高温ブライドル区間から選択される区間の少なくとも1つの区間に連続的に注入され、流入ガスが、注入された前記不活性ガス及び注入された前記H2をさらに含む、請求項1〜15のいずれか一項に記載の方法。
- 不活性ガスが、窒素、ヘリウム、ネオン、アルゴン、クリプトン、キセノン又はそれらの混合物から選択される、請求項1〜16のいずれか一項に記載の方法。
- 開口部が、弁によって制御される穴、弁によって制御される排気パイプ、又はストリップのための入口シールである、請求項1〜17のいずれか一項に記載の方法。
- ステップB)が、亜鉛、アルミニウム、ケイ素及びマグネシウムから選択される元素、並びにインゴットの供給から、又は溶融浴中の鋼板の通過からの不可避的不純物及び残留元素の少なくとも1つを含む金属溶融浴で行われる、請求項1〜18のいずれか一項に記載の方法。
- 金属被膜で被覆された鋼板が、焼鈍される、請求項19に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2016/000486 WO2017182833A1 (en) | 2016-04-19 | 2016-04-19 | Method for producing a metallic coated steel sheet |
IBPCT/IB2016/000486 | 2016-04-19 | ||
PCT/IB2017/000424 WO2017182863A1 (en) | 2016-04-19 | 2017-04-11 | Method for producing a metallic coated steel sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019519672A JP2019519672A (ja) | 2019-07-11 |
JP6744923B2 true JP6744923B2 (ja) | 2020-08-19 |
Family
ID=56069165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018554689A Active JP6744923B2 (ja) | 2016-04-19 | 2017-04-18 | 金属被覆鋼板を製造するための方法 |
Country Status (16)
Country | Link |
---|---|
US (1) | US11131005B2 (ja) |
EP (1) | EP3445877B8 (ja) |
JP (1) | JP6744923B2 (ja) |
KR (1) | KR101973921B1 (ja) |
CN (1) | CN109072323B (ja) |
AU (1) | AU2017252657B2 (ja) |
BR (1) | BR112018069450B1 (ja) |
CA (1) | CA3021578C (ja) |
ES (1) | ES2899106T3 (ja) |
MA (1) | MA44719A (ja) |
MX (1) | MX2018012724A (ja) |
PL (1) | PL3445877T3 (ja) |
RU (1) | RU2696126C1 (ja) |
UA (1) | UA120900C2 (ja) |
WO (2) | WO2017182833A1 (ja) |
ZA (1) | ZA201806336B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022129989A1 (en) * | 2020-12-15 | 2022-06-23 | Arcelormittal | Annealing method |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5783622A (en) | 1997-05-05 | 1998-07-21 | Armco Inc. | Precoated chromium alloyed steel with enhanced paint adhesion for exhaust applications |
JP3367459B2 (ja) | 1999-03-19 | 2003-01-14 | 住友金属工業株式会社 | 溶融Zn−Al系合金めっき鋼板の製造方法 |
JP4123690B2 (ja) * | 2000-06-20 | 2008-07-23 | 住友金属工業株式会社 | 連続焼鈍炉内への雰囲気ガス供給方法 |
JP4791482B2 (ja) | 2005-10-14 | 2011-10-12 | 新日本製鐵株式会社 | Siを含有する鋼板の連続焼鈍溶融めっき方法及び連続焼鈍溶融めっき装置 |
BE1017086A3 (fr) | 2006-03-29 | 2008-02-05 | Ct Rech Metallurgiques Asbl | Procede de recuit et preparation en continu d'une bande en acier a haute resistance en vue de sa galvanisation au trempe. |
EP2009127A1 (en) | 2007-06-29 | 2008-12-31 | ArcelorMittal France | Process for manufacturing a galvanized or a galvannealed steel sheet by DFF regulation |
EP2009128A1 (en) | 2007-06-29 | 2008-12-31 | ArcelorMittal France | Galvanized or galvannealed silicon steel |
KR20100076744A (ko) | 2008-12-26 | 2010-07-06 | 주식회사 포스코 | 강판의 소둔 장치, 도금 품질이 우수한 도금 강판의 제조 장치 및 이를 이용한 도금 강판의 제조방법 |
CN102268516B (zh) * | 2010-06-07 | 2013-05-01 | 鞍钢股份有限公司 | 高碳含量中低牌号冷轧无取向硅钢脱碳退火工艺 |
JP5505430B2 (ja) | 2012-01-17 | 2014-05-28 | Jfeスチール株式会社 | 鋼帯の連続焼鈍炉及び連続焼鈍方法 |
KR101642632B1 (ko) * | 2012-06-13 | 2016-07-25 | 제이에프이 스틸 가부시키가이샤 | 강대의 연속 어닐링 방법, 강대의 연속 어닐링 장치, 용융 아연 도금 강대의 제조 방법 및 용융 아연 도금 강대의 제조 장치 |
CN103507324B (zh) | 2012-06-20 | 2015-06-03 | 鞍钢股份有限公司 | 一种合金化锌铝镁镀层钢板及其生产方法 |
WO2014037627A1 (fr) | 2012-09-06 | 2014-03-13 | Arcelormittal Investigación Y Desarrollo Sl | Procede de fabrication de pieces d'acier revêtues et durcies a la presse, et tôles prerevêtues permettant la fabrication de ces pieces |
JP5565485B1 (ja) * | 2013-02-25 | 2014-08-06 | Jfeスチール株式会社 | 鋼帯の連続焼鈍装置および連続溶融亜鉛めっき装置 |
-
2016
- 2016-04-19 WO PCT/IB2016/000486 patent/WO2017182833A1/en active Application Filing
-
2017
- 2017-04-11 MX MX2018012724A patent/MX2018012724A/es unknown
- 2017-04-11 WO PCT/IB2017/000424 patent/WO2017182863A1/en active Application Filing
- 2017-04-11 MA MA044719A patent/MA44719A/fr unknown
- 2017-04-18 JP JP2018554689A patent/JP6744923B2/ja active Active
- 2017-04-18 ES ES17719904T patent/ES2899106T3/es active Active
- 2017-04-18 PL PL17719904T patent/PL3445877T3/pl unknown
- 2017-04-18 UA UAA201811249A patent/UA120900C2/uk unknown
- 2017-04-18 EP EP17719904.9A patent/EP3445877B8/en active Active
- 2017-04-18 BR BR112018069450-9A patent/BR112018069450B1/pt active IP Right Grant
- 2017-04-18 AU AU2017252657A patent/AU2017252657B2/en active Active
- 2017-04-18 US US16/094,849 patent/US11131005B2/en active Active
- 2017-04-18 CA CA3021578A patent/CA3021578C/en active Active
- 2017-04-18 RU RU2018140274A patent/RU2696126C1/ru active
- 2017-04-18 CN CN201780024142.3A patent/CN109072323B/zh active Active
- 2017-04-18 KR KR1020187030186A patent/KR101973921B1/ko active IP Right Grant
-
2018
- 2018-09-20 ZA ZA2018/06336A patent/ZA201806336B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU2017252657A8 (en) | 2018-11-15 |
WO2017182863A1 (en) | 2017-10-26 |
US20190119776A1 (en) | 2019-04-25 |
KR101973921B1 (ko) | 2019-04-29 |
BR112018069450B1 (pt) | 2022-08-16 |
EP3445877B8 (en) | 2023-06-21 |
RU2696126C1 (ru) | 2019-07-31 |
ES2899106T3 (es) | 2022-03-10 |
US11131005B2 (en) | 2021-09-28 |
BR112018069450A2 (pt) | 2019-02-05 |
KR20180119686A (ko) | 2018-11-02 |
EP3445877A1 (en) | 2019-02-27 |
EP3445877B1 (en) | 2021-10-27 |
MX2018012724A (es) | 2019-01-31 |
CA3021578A1 (en) | 2017-10-26 |
CN109072323A (zh) | 2018-12-21 |
AU2017252657B2 (en) | 2020-05-14 |
ZA201806336B (en) | 2019-06-26 |
JP2019519672A (ja) | 2019-07-11 |
PL3445877T3 (pl) | 2022-02-14 |
AU2017252657A1 (en) | 2018-10-18 |
WO2017182833A1 (en) | 2017-10-26 |
CN109072323B (zh) | 2019-11-15 |
UA120900C2 (uk) | 2020-02-25 |
WO2017182863A8 (en) | 2018-11-15 |
MA44719A (fr) | 2019-02-27 |
CA3021578C (en) | 2021-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111433385B (zh) | 热浸涂钢基材 | |
US20240110257A1 (en) | Galvannealed steel sheet | |
EP3636790A1 (en) | Hot dipped high manganese steel and manufacturing method therefor | |
KR102374498B1 (ko) | 용융도금 코팅된 강 시트 | |
CN115516117B (zh) | 钢的退火方法 | |
JP6744923B2 (ja) | 金属被覆鋼板を製造するための方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20181214 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20191113 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20191126 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20200220 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200522 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200721 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200731 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6744923 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |