WO2018115945A1 - Procédé pour la fabrication d'une tôle d'âcier recuite après galvanisation - Google Patents
Procédé pour la fabrication d'une tôle d'âcier recuite après galvanisation Download PDFInfo
- Publication number
- WO2018115945A1 WO2018115945A1 PCT/IB2017/001279 IB2017001279W WO2018115945A1 WO 2018115945 A1 WO2018115945 A1 WO 2018115945A1 IB 2017001279 W IB2017001279 W IB 2017001279W WO 2018115945 A1 WO2018115945 A1 WO 2018115945A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel sheet
- anyone
- coating
- zinc
- iron
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 80
- 239000010959 steel Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 238000000576 coating method Methods 0.000 claims description 35
- 239000011248 coating agent Substances 0.000 claims description 34
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 33
- 239000011701 zinc Substances 0.000 claims description 30
- 229910052725 zinc Inorganic materials 0.000 claims description 29
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 28
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 229910052759 nickel Inorganic materials 0.000 claims description 14
- 229910001563 bainite Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910000734 martensite Inorganic materials 0.000 claims description 7
- 238000007669 thermal treatment Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 238000005275 alloying Methods 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 238000000137 annealing Methods 0.000 claims description 5
- 229910001566 austenite Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000003618 dip coating Methods 0.000 claims description 3
- 229910001567 cementite Inorganic materials 0.000 claims description 2
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910001562 pearlite Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 13
- 238000005246 galvanizing Methods 0.000 description 5
- 238000004626 scanning electron microscopy Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000004210 cathodic protection Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 239000007788 liquid Substances 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
- 230000003287 optical effect Effects 0.000 description 2
- 238000000399 optical microscopy Methods 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium 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
- 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
- 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
-
- 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
- C23C2/26—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
- 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
-
- 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
Definitions
- the present invention relates to a method for the manufacture of a galvannealed steel sheet.
- the invention is particularly well suited for the manufacture of automotive vehicles.
- Zinc based coatings are generally used because they allow for a protection against corrosion, thanks to barrier protection and cathodic protection.
- the barrier effect is obtained by the application of a metallic coating on steel surface.
- the metallic coating prevents the contact between steel and corrosive atmosphere.
- the barrier effect is independent from the nature of the coating and the substrate.
- sacrificial cathodic protection is based on the fact that zinc is a metal less noble that steel. Thus, if corrosion occurs, zinc is consumed preferentially as compared to steel. Cathodic protection is essential in areas where steel is directly exposed to corrosive atmosphere, like cut edges where surrounding zinc will be consumed before steel.
- zinc coated steel sheets are alloyed at high temperature in order to obtain a galvannealed steel sheet.
- This steel sheet is more resistance to LME than a zinc coated steel sheet because an alloy comprising Fe and Zn is formed which has higher melting point and forms less liquid during spot welding as compared to pure Zinc.
- the object of the invention is to provide a galvannealed steel sheet which does not have LME issues. It aims to make available, in particular, an easy to implement method in order to obtain an assembly which does not have LME issues after the forming and/or the welding.
- the object is achieved by providing a method according to claim 1 .
- the method can also comprise any characteristics of claims 2 to 18.
- the steel sheet can also comprise any characteristics of claims 20 to 26.
- spot welded joint can also comprise characteristics of claim according to claim 30.
- steel or “steel sheet” means a steel sheet, a coil, a plate having a composition allowing the part to achieve a tensile strength up to 2500 MPa and more preferably up to 2000MPa.
- the tensile strength is above or equal to 500 MPa, preferably above or equal to 980 MPa, advantageously above or equal to 1180 MPa and even above or equal 1470 MPa.
- the invention relates to a method for the manufacture of a galvannealed steel sheet comprising the following steps:
- the first coating comprising iron and nickel is deposited by any deposition method known by the man skilled in the art. It can be deposited by vacuum deposition or electro-plating method. Preferably, it is deposited by electro-plating method.
- the first coating comprises from 10% to 75%, more preferably between 25 to 65% and advantageously between 40 to 60% by weight of iron.
- the first coating comprises from 25.0 to 90%, preferably from 35 to 75% and advantageously from 40 to 60% by weight of nickel.
- the first coating consists of iron and nickel.
- the first coating has a thickness equal or above 0.5 pm. More preferably, the first coating has a thickness between 0.8 and 5.0pm and advantageously between 1.0 and 2.0pm.
- the thermal treatment is a continuous annealing.
- the continuous annealing comprises a heating, a soaking and a cooling step. It can further comprise a pre-heating step.
- the thermal treatment is performed in an atmosphere comprising from 1 to 30% of H 2 at a dew point between -10 and -60°C.
- the atmosphere comprises from 1 to 10% of H 2 at a dew point between - 40°C and -60°C.
- the second layer comprises above 70%, more preferably above 80% of zinc and advantageously above 85% of zinc.
- the second layer can be deposited by any deposition method known by the man skilled in the art. It can be done by hot-dip coating, by vacuum deposition or by electro- galvanizing.
- the coating based on zinc comprises between 0.01 and0.18 wt.% Al, optionally 0.2-8.0% Mg, the remainder being Zn.
- the coating based on zinc is deposited by hot-dip galvanizing method.
- the molten bath can also comprise unavoidable impurities and residuals elements from feeding ingots or from the passage of the steel sheet in the molten bath.
- the optionally impurities are chosen from Sr, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Zr or Bi, the content by weight of each additional element being inferior to 0.3% by weight.
- the residual elements from feeding ingots or from the passage of the steel sheet in the molten bath can be iron with a content up to 5.0%, preferably 3.0%, by weight.
- the second layer consists of zinc.
- the percentage of Aluminum is comprised between 0.10 and 0.18 wt.% in the bath.
- step D) the alloying treatment is performed by heating the coated steel sheet obtained in step C) at a temperature between 460 and 550 °C for 5 to 40 seconds.
- step D is performed at 500°C for 20 seconds.
- a galvannealed steel sheet is obtained with a first layer comprising iron and nickel directly topped by a second layer based on zinc, the first and second layers being alloyed through diffusion such that the second alloy layer comprising from 5 to 15wt.% of iron, from 0 to 15wt.% and preferably from 1 to 15wt.% of nickel, the balance being zinc.
- the steel sheet has a microstructure comprising from 1 to 50% of residual austenite, from 1 to 60% of martensite and optionally at least one element chosen from: bainite, ferrite, cementite and pearlite.
- the martensite can be tempered or untempered.
- the steel sheet has a microstructure comprising from 5 to 25 % of residual austenite.
- the steel sheet has a microstructure comprising from 1 to 60% and more preferably between 10 to 60% of tempered martensite.
- the steel sheet has a microstructure comprising from 10 to 40% of bainite, such bainite comprising from 10 to 20% of lower bainite, from 0 to 15% of upper bainite and from 0 to 5% of carbide free bainite.
- the steel sheet has a microstructure comprising from 1 to 25% of ferrite.
- the steel sheet has a microstructure comprising from 1 to 15% untempered martensite.
- the welding is performed with an effective intensity is between 3kA and 15kA and the force applied on the electrodes is between 150 and 850 daN with said electrode active face diameter being between 4 and 10mm.
- a spot welded joint of at least two metal sheets, comprising the coated steel sheet according to the present invention is obtained, such said joint containing less than 3 cracks having a size above 100pm and wherein the longest crack has a length below 400 ⁇ .
- the second metal sheet is a steel sheet or an aluminum sheet. More preferably, the second metal sheet is a steel sheet according to the present invention.
- the spot welded joint comprises a third metal sheet being a steel sheet or an aluminum sheet.
- the third metal sheet is a steel sheet according to the present invention.
- the steel sheet or the spot welded joint according to the present invention can be used for the manufacture of parts for automotive vehicle.
- Trial 1 to 4 were prepared by deposited a first coating comprising 55% and
- Trial 5 was prepared by depositing a zinc coating by electro-galvanizing after the continuous annealing of the above steel sheet.
- Trials according to the present invention show an excellent resistance to LME compared to Trial 5. Indeed, the number of cracks of Trials according to the present invention is very low, even nonexistent, compared to Trial 5.
- Trials according to the present invention show an excellent resistance to LME as compared to Trial 5.
- Trials 1 to 4 were bent at a 90° angle followed. An adhesive tape was then applied and removed to verify the coating adhesion with the substrate steel. The coating adhesion of those Trials was excellent.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
La présente invention concerne un procédé pour la fabrication d'une tôle d'acier recuite après galvanisation.
Priority Applications (17)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18797150.2A EP3701058B1 (fr) | 2017-10-24 | 2018-10-19 | Procédé permettant la fabrication d'une tôle d'âcier recuite par galvanisation |
| ES18797150T ES2982286T3 (es) | 2017-10-24 | 2018-10-19 | Un procedimiento para la fabricación de una lámina de acero galvano-recocido |
| PL18797150.2T PL3701058T3 (pl) | 2017-10-24 | 2018-10-19 | Sposób wytwarzania blachy stalowej ocynkowanej z przeżarzaniem |
| PCT/IB2018/058158 WO2019082038A1 (fr) | 2017-10-24 | 2018-10-19 | Procédé permettant la fabrication d'une tôle d'âcier recuite par galvanisation |
| JP2020522914A JP7062058B2 (ja) | 2017-10-24 | 2018-10-19 | 合金化溶融亜鉛めっき鋼板の製造方法 |
| US16/754,589 US11578378B2 (en) | 2017-10-24 | 2018-10-19 | Method for the manufacture of a galvannealed steel sheet |
| KR1020207011205A KR102383618B1 (ko) | 2017-10-24 | 2018-10-19 | 용융아연도금된 강 시트의 제조 방법 |
| BR112020006461-0A BR112020006461B1 (pt) | 2017-10-24 | 2018-10-19 | Método para a fabricação de uma chapa de aço galvanizada e recozida |
| CN201880069224.4A CN111279007B (zh) | 2017-10-24 | 2018-10-19 | 用于制造镀锌扩散退火钢板的方法 |
| HUE18797150A HUE067484T2 (hu) | 2017-10-24 | 2018-10-19 | Eljárás galvanizált acéllemez elõállítására |
| CA3076464A CA3076464C (fr) | 2017-10-24 | 2018-10-19 | Procede permettant la fabrication d'une tole d'acier recuite par galvanisation |
| MX2020004313A MX2020004313A (es) | 2017-10-24 | 2018-10-19 | Un metodo para la fabricacion de una lamina de acero galvanizado. |
| MA50453A MA50453B1 (fr) | 2017-10-24 | 2018-10-19 | Procédé permettant la fabrication d'une tôle d'âcier recuite par galvanisation |
| RU2020113209A RU2738130C1 (ru) | 2017-10-24 | 2018-10-19 | Способ изготовления гальванизированной и отожженной листовой стали |
| UAA202003016A UA125978C2 (uk) | 2017-10-24 | 2018-10-19 | Спосіб виготовлення гальванізованої та відпаленої листової сталі |
| FIEP18797150.2T FI3701058T3 (fi) | 2017-10-24 | 2018-10-19 | Menetelmä galvanoidun-hehkutetun teräslevyn valmistusta varten |
| US18/094,503 US12091724B2 (en) | 2017-10-24 | 2023-01-09 | Galvannealed steel sheet coated with an iron and nickel layer topped by a zinc-based layer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IB2016001802 | 2016-12-21 | ||
| IBPCT/IB2016/001802 | 2016-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018115945A1 true WO2018115945A1 (fr) | 2018-06-28 |
Family
ID=57799737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2017/001279 WO2018115945A1 (fr) | 2016-12-21 | 2017-10-24 | Procédé pour la fabrication d'une tôle d'âcier recuite après galvanisation |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2018115945A1 (fr) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004124187A (ja) * | 2002-10-03 | 2004-04-22 | Sumitomo Metal Ind Ltd | 密着性・溶接性に優れた高強度溶融亜鉛めっき鋼板 |
| KR20120074144A (ko) * | 2010-12-27 | 2012-07-05 | 주식회사 포스코 | 내파우더링성이 우수한 고망간 고알루미늄 합금화 용융아연도금강판 및 그 제조방법 |
| EP2631319A1 (fr) * | 2010-10-21 | 2013-08-28 | Posco | Tôle galvanisée présentant d'excellentes aptitudes au revêtement, adhérence de revêtement et aptitude au soudage par points, ainsi que son procédé de fabrication |
| US20160082701A1 (en) * | 2013-05-20 | 2016-03-24 | Nippon Steel & Sumitomo Metal Corporation | Galvannealed steel sheet and manufacturing method thereof |
-
2017
- 2017-10-24 WO PCT/IB2017/001279 patent/WO2018115945A1/fr active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004124187A (ja) * | 2002-10-03 | 2004-04-22 | Sumitomo Metal Ind Ltd | 密着性・溶接性に優れた高強度溶融亜鉛めっき鋼板 |
| EP2631319A1 (fr) * | 2010-10-21 | 2013-08-28 | Posco | Tôle galvanisée présentant d'excellentes aptitudes au revêtement, adhérence de revêtement et aptitude au soudage par points, ainsi que son procédé de fabrication |
| KR20120074144A (ko) * | 2010-12-27 | 2012-07-05 | 주식회사 포스코 | 내파우더링성이 우수한 고망간 고알루미늄 합금화 용융아연도금강판 및 그 제조방법 |
| US20160082701A1 (en) * | 2013-05-20 | 2016-03-24 | Nippon Steel & Sumitomo Metal Corporation | Galvannealed steel sheet and manufacturing method thereof |
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