EP0710732B1 - Procédé de revêtement au trempé et sans alliation d'une tole d'acier à bas interstitiel - Google Patents
Procédé de revêtement au trempé et sans alliation d'une tole d'acier à bas interstitiel Download PDFInfo
- Publication number
- EP0710732B1 EP0710732B1 EP95402327A EP95402327A EP0710732B1 EP 0710732 B1 EP0710732 B1 EP 0710732B1 EP 95402327 A EP95402327 A EP 95402327A EP 95402327 A EP95402327 A EP 95402327A EP 0710732 B1 EP0710732 B1 EP 0710732B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- hot
- alloy
- zinc
- steel
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 39
- 239000010959 steel Substances 0.000 title claims abstract description 39
- 238000003618 dip coating Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 11
- 238000005275 alloying Methods 0.000 title claims description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000003973 paint Substances 0.000 claims abstract description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 7
- 229910001297 Zn alloy Inorganic materials 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 29
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 27
- 239000011701 zinc Substances 0.000 claims description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 210000003298 dental enamel Anatomy 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 7
- 238000001953 recrystallisation Methods 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 22
- 239000000956 alloy Substances 0.000 abstract description 22
- 238000007598 dipping method Methods 0.000 abstract description 22
- 239000010410 layer Substances 0.000 description 36
- 230000007547 defect Effects 0.000 description 17
- 230000032683 aging Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000010422 painting Methods 0.000 description 5
- 238000002791 soaking Methods 0.000 description 5
- 238000000137 annealing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 235000010633 broth Nutrition 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000004534 enameling Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 235000020004 porter Nutrition 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 240000000966 Allium tricoccum Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 239000002320 enamel (paints) Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 229910001845 yogo sapphire 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
- C23C2/26—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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
Definitions
- the invention relates to a coating method, by soaking and without alloy, of a sheet of steel with low interstitial by a metallic layer to aluminum or zinc base and the use of this coated sheet for prepare said strip for enameling or painting.
- IF Interstitial Free
- these steel shades contain proportions sufficiently low interstitial elements, in particular carbon and nitrogen, which avoids any risk of supersaturation of these elements in steel.
- IF steel sheets are widespread, in particular because that these sheets do not present a risk of metallurgical aging.
- Metallurgical aging is particularly troublesome in the case of sheets coated by dipping, in particular intended for enamelling or for painting.
- a treatment is generally also carried out thermal alloy after quenching at a sufficiently high temperature to trigger the alliance, said temperature often being higher than the coating melting temperature.
- the annealing treatment and alloying treatment help to eliminate carbon and nitrogen oversaturations in steel, and therefore to be freed problems inherent in metallurgical aging.
- the invention relates to IF steel sheets for which such metallurgical aging treatment is, of course, never considered after a dip coating without alloying.
- the invention relates to coatings based on zinc or aluminum on these IF steel sheets.
- the layer of enamel deposited on said sheet coated may have a matt, satin or shiny character.
- the invention aims to improve the surface appearance of an IF sheet coated by dipping, in particular with a metallic base layer aluminum or zinc, after enameling or after painting or after simple aging.
- the subject of the invention is a coating process, by quenching and without alloy, of a sheet of steel with low interstitial by a metallic layer to aluminum or zinc base according to which said sheet is prepared for the coating, soaking said sheet in a bath of molten metal, extracting bath said sheet and solidifies the metallic layer entrained on the surface of said sheet, in particular by rapid cooling, characterized in that that, immediately after solidification of said metal layer, subjects said sheet to a rapid heat treatment of a shorter duration 5 minutes including a rapid heating step and a rapid cooling to room temperature, said rapid heating being adapted to bring the surface of said sheet to a temperature higher than 300 ° C but lower than the alloying temperature between said sheet metal and said metal layer.
- the invention also relates to the use of such a coated sheet by dipping, in particular with a layer of aluminum or aluminum alloy, for an enamel coating, in particular an enamel having a surface brilliant.
- the invention also relates to the use of such a coated sheet by dipping, in particular with a layer of zinc, for a coating of paint, especially paint that requires cooking at a temperature above 100 ° C.
- the installation of continuous coating by dipping a strip metal comprises means for preparing the strip, means soaking the strip in a molten metal bath, means for solidification and dewatering of metallic layer and means of rapid heat treatment arranged in cascade along a path continuous scrolling of said strip.
- the means for preparing the strip, the means for soaking the strip in a bath of molten metal and the solidification means and of metallic layer are known in themselves for the dip coating of metal strips.
- the means for preparing the strip include in particular means for preparing the surface of the strip and means for recrystallization of the steel from the strip.
- the means for surface preparation of the strip comprise a burning chamber with open flame burners oriented towards said tape scroll path.
- the recrystallization means comprise a thermal enclosure whose atmosphere is confined and controllable.
- the dipping means comprise a crucible for dipping the strip to contain a bath of molten metal.
- the solidification and wringing means include ramps of gas blowing at room temperature oriented towards the tape scrolling.
- the heat treatment means include means for heating and cooling means.
- the heating means are in the form of a tunnel equipped with infrared radiation ramps oriented towards the path tape scrolling.
- heating means can be used without losing of the present invention, in particular means of heating by induction.
- the cooling means include ejection ramps gas or liquid oriented toward the tape running path.
- the duration of the rapid heat treatment is less than 2 minutes.
- the radiation power of the infrared ramps of the tunnel heating and the length of said tunnel are adapted in a known manner in itself so that the temperature of the surface of the strip is brought up at a temperature above 300 ° C but below the temperature of alloy between said sheet and said metal layer.
- said strip surface temperature is preferably between 550 ° C and 625 ° C.
- said surface temperature of the strip is preferably between 320 ° C and 390 ° C.
- said strip surface temperature is preferably between 390 ° C and 550 ° C.
- the gas flow rate of the ejection ramps of the cooling means and the number of ramps along the tape running path are adapted in a manner known per se to cool the surface of the tape at room temperature.
- the Applicant has also found that surface defects no longer appear after aging of an IF steel sheet, thus coated by dipping, in particular zinc or a zinc-based alloy.
- the purpose of this test is to illustrate the method according to the invention of dip coating of an IF steel strip with a layer of alloy aluminum.
- the aluminum alloy to be deposited contains, by weight, 90% aluminum and 10% silicon and melts at a temperature of about 680 ° C.
- the length of the tunnel of heating means for treatment thermal according to the invention is about 80 m.
- the aluminum alloy coating thus obtained has good adhesion to the steel substrate and a homogeneous surface appearance.
- the purpose of this test is to illustrate the improvement of the surface condition of a coated sheet according to the invention then enamelled to obtain a surface brilliant.
- An IF steel strip coated under the same conditions is prepared than in test no. 1, with the difference that the coated strip is cooled to room temperature immediately after spinning and solidification of the coating layer, without passing through the rapid heating tunnel and a sheet blank A is cut from the strip obtained.
- a sheet blank B is cut from the coated strip from test # 1.
- the enamel used can have the following composition: Si02: 27% - TiO2:: 25% - Na2O:: 17% - K2O: 11% - V2O5: 8% - CdO: 5% - B2O3: 3% - P2O5: 2% - Li2O: 1% - Al2O3: 1%.
- a sheet of steel, coated by dipping in accordance with the invention, in particular a layer of aluminum or a base alloy aluminum, then enamelled to obtain a shiny surface, does not have almost more surface defects.
- the zinc coating thus obtained has good adhesion to steel substrate.
- An IF steel strip coated under the same conditions is prepared than in test no. 3 with the difference that the coated strip is cooled to room temperature immediately after spinning and solidification of the coating layer, without passing through the rapid heating tunnel and a sheet blank C is cut from the strip obtained.
- a sheet metal blank D is cut from the coated strip from test # 3.
- the painted surface of the sheet blank D has a very good appearance and has almost no defects, whereas that of the blank C is very disturbed and has many micro-blisters or micro-blisters.
- a sheet of steel, coated by dipping in accordance with the invention, in particular a layer of zinc, then painted, does not present almost more surface defects.
Landscapes
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Laminated Bodies (AREA)
Description
- la durée dudit traitement thermique rapide est de préférence inférieure à 2 minutes environ.
- ladite couche métallique est à base d'aluminium et ladite température de traitement thermique est comprise entre 550°C et 625°C.
- ladite couche métallique est à base de zinc et ladite température de traitement thermique est comprise entre 320°C et 390°C.
- ladite couche métallique est un alliage de zinc et d'aluminium et ladite température de traitement thermique est comprise entre 390°C et 550°C.
- ledit procédé est conduit en continu.
- pour préparer ladite tôle au revêtement, on la soumet à un traitement de recristallisation sous une atmosphère non oxydante.
- pour préparer ladite bande, d'une manière connue en elle-même, on fait défiler ladite bande d'acier IF dans l'enceinte de brûlage en portant sa surface à une température apte à réaliser un bon nettoyage et on la fait défiler dans l'enceinte thermique de recristallisation maintenue à une température prédéterminée, sous une atmosphère de composition prédéterminée et pendant une durée de traitement prédéterminée pour obtenir les propriétés mécaniques requises de l'acier de la bande tout en limitant l'oxydation superficielle de la bande qui peut être préjudiciable à l'adhérence de la couche métallique ; de préférence, ladite atmosphère de composition prédéterminée est non oxydante ;
- pour revêtir ladite bande d'une couche métallique, on trempe la bande dans le creuset de trempage contenant un bain de métal fondu dont la composition a été adaptée d'une manière connue en elle-même en fonction de la nature souhaitée de la couche métallique de revêtement, on extrait la bande du creuset de trempage en entraínant à la surface de la bande une couche dudit métal fondu, on refroidit et on essore ladite couche de métal fondu à l'aide des rampes de soufflage de gaz dont le débit et la pression de gaz sont réglés d'une manière connue en elle-même pour solidifier ladite couche tout en obtenant l'épaisseur de revêtement souhaité ;
- et on traite thermiquement et rapidement ladite bande ainsi revêtue d'une couche métallique solidifiée pendant une durée de traitement inférieure à 5 minutes en faisant défiler ladite bande successivement dans les moyens de chauffage puis dans les moyens de refroidissement pour refroidir sa surface à la température ambiante.
- on prépare la bande selon les étapes suivantes :
- nettoyage de la surface par brûlage en portant la surface de la bande à 600°C ;
- traitement de recristallisation pendant 2 à 5 minutes sous une atmosphère composée d'azote à 80% et d'hydrogène à 20% pour porter la bande à une température comprise entre 750°C et 850°C ;
- on refroidit la bande à une température de environ 680°C, on trempe la bande dans un bain de l'alliage d'aluminium en fusion, on extrait la bande dudit bain, on essore la bande tout en solidifiant la couche d'alliage entraínée sur la bande ;
- en sortie d'essorage, quand la couche métallique est solidifiée, on fait ensuite défiler la bande pendant environ 1 minute dans le tunnel de traitement thermique pour porter sa surface à une température d'environ 600 °C au bout de 30 secondes et l'y maintenir à cette température pendant environ 30 secondes et, en sortie dudit tunnel, on fait défiler la bande pendant environ 15 secondes dans le champ d'éjecteurs de gaz de refroidissement pour refroidir sa surface à la température ambiante.
- le creuset de trempage de la bande contient du zinc fondu à une température de environ 450°C.
- dans le tunnel de traitement thermique rapide, la température à laquelle on porte puis on maintient la surface de la bande est d'environ 360°C.
Claims (9)
- Procédé de revêtement, au trempé et sans alliation, d'une tôle d'acier à bas interstitiel par une couche métallique à base d'aluminium ou de zinc selon lequel on prépare ladite tôle pour le revêtement, on trempe ladite tôle dans un bain de métal fondu, on extrait du bain ladite tôle et on solidifie la couche métallique entraínée à la surface de ladite tôle, notamment par refroidissement rapide, caractérisé en ce que, immédiatement après solidification de ladite couche métallique, on soumet ladite tôle à un traitement thermique rapide d'une durée inférieure à 5 minutes comportant une étape de chauffage rapide et une étape de refroidissement rapide à la température ambiante, ledit chauffage rapide étant adapté pour porter la surface de ladite tôle à une température supérieure à 300°C mais inférieure à la température d'alliation entre ladite tôle et ladite couche métallique .
- Procédé de revêtement au trempé selon la revendication 1 caractérisé en ce que la durée dudit traitement thermique rapide est de préférence inférieure à 2 minutes environ.
- Procédé de revêtement au trempé selon la revendication 1 ou 2 caractérisé en ce que ladite couche métallique est à base d'aluminium et en ce que ladite température de traitement thermique est comprise entre 550°C et 625°C.
- Procédé de revêtement au trempé selon la revendication 1 ou 2 caractérisé en ce que ladite couche métallique est à base de zinc et en ce que ladite température de traitement thermique est comprise entre 320°C et 390°C.
- Procédé de revêtement au trempé selon la revendication 1 ou 2 caractérisé en ce que ladite couche métallique est un alliage de zinc et d'aluminium et en ce que ladite température de traitement thermique est comprise entre 390°C et 550°C.
- Procédé de revêtement au trempé selon l'une quelconque des revendications précédentes caractérisé en ce qu'il est conduit en continu.
- Procédé de revêtement au trempé d'une tôle d'acier selon l'une quelconque des revendications précédentes caractérisé en ce que, pour préparer ladite tôle au revêtement, on la soumet à un traitement de recristallisation sous une atmosphère non oxydante.
- Utilisation d'une tôle revêtue au trempé selon l'une quelconque des revendications 1, 2, 3, 6 et 7, notamment revêtue d'une couche d'aluminium ou d'alliage d'aluminium, pour un revêtement d'émail, notamment un émail présentant une surface brillante.
- Utilisation d'une tôle revêtue au trempé selon l'une quelconque des revendications 1, 2, 4 à 7, notamment d'une couche de zinc ou d'alliage de zinc, pour un revêtement de peinture, notamment une peinture nécessitant une cuisson à une température supérieure à 100°C.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9413165A FR2726578B1 (fr) | 1994-11-04 | 1994-11-04 | Procede de revetement au trempe d'une tole d'acier par une couche metallique a base d'aluminium ou de zinc |
FR9413165 | 1994-11-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0710732A1 EP0710732A1 (fr) | 1996-05-08 |
EP0710732B1 true EP0710732B1 (fr) | 1998-01-07 |
Family
ID=9468485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95402327A Expired - Lifetime EP0710732B1 (fr) | 1994-11-04 | 1995-10-19 | Procédé de revêtement au trempé et sans alliation d'une tole d'acier à bas interstitiel |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0710732B1 (fr) |
AT (1) | ATE161898T1 (fr) |
DE (1) | DE69501386T2 (fr) |
ES (1) | ES2111380T3 (fr) |
FR (1) | FR2726578B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007134400A1 (fr) * | 2006-05-24 | 2007-11-29 | Bluescope Steel Limited | Procédé de traitement de produits revêtus d'un alliage à base d'al/zn |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19646362C2 (de) * | 1996-11-09 | 2000-07-06 | Thyssen Stahl Ag | Verfahren zum Wärmebehandeln von ZnAl-schmelztauchbeschichtetem Feinblech |
EP0916624B1 (fr) * | 1997-11-11 | 2001-07-25 | Kawasaki Steel Corporation | Tôles d'acier revêtues d'un porcelaine-émail et frittes pour émaillage |
FR2775297B1 (fr) | 1998-02-25 | 2000-04-28 | Lorraine Laminage | Tole dotee d'un revetement d'aluminium resistant a la fissuration |
DE102007022453B4 (de) * | 2007-05-10 | 2020-02-06 | Thyssenkrupp Steel Europe Ag | Mehrschichtiges Verbundteil und aus diesem hergestelltes Bauteil |
MY179278A (en) | 2009-05-28 | 2020-11-03 | Bluescope Steel Ltd | Metal-coated steel strip |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3297499A (en) * | 1964-04-02 | 1967-01-10 | Nat Steel Corp | Method for heat treating steel strip |
JPS608289B2 (ja) * | 1978-10-16 | 1985-03-01 | 日新製鋼株式会社 | 加工性のすぐれた溶融めつき鋼板の製造方法 |
JPS6048570B2 (ja) * | 1978-12-25 | 1985-10-28 | 日新製鋼株式会社 | 連続溶融アルミニウムメツキ鋼板の連続過時効処理法 |
BE874599A (fr) * | 1979-03-02 | 1979-09-03 | Centre Rech Metallurgique | Procede de fabrication d'une bande d'acier revetue |
JPS61223174A (ja) * | 1985-03-28 | 1986-10-03 | Sumitomo Metal Ind Ltd | 合金化溶融亜鉛めつき鋼板の製造方法 |
JPS62130268A (ja) * | 1985-12-02 | 1987-06-12 | Kawasaki Steel Corp | 加工用合金化処理溶融亜鉛めつき軟鋼板の製造方法 |
BE1005288A6 (fr) * | 1990-09-27 | 1993-06-22 | Centre Rech Metallurgique | Installation de traitement continu d'une bande d'acier galvanisee et procede pour son utilisation. |
JPH05247619A (ja) * | 1992-03-03 | 1993-09-24 | Nippon Steel Corp | 合金化亜鉛めっき鋼板製造用竪型合金化炉 |
-
1994
- 1994-11-04 FR FR9413165A patent/FR2726578B1/fr not_active Expired - Fee Related
-
1995
- 1995-10-19 ES ES95402327T patent/ES2111380T3/es not_active Expired - Lifetime
- 1995-10-19 DE DE69501386T patent/DE69501386T2/de not_active Expired - Fee Related
- 1995-10-19 AT AT95402327T patent/ATE161898T1/de not_active IP Right Cessation
- 1995-10-19 EP EP95402327A patent/EP0710732B1/fr not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007134400A1 (fr) * | 2006-05-24 | 2007-11-29 | Bluescope Steel Limited | Procédé de traitement de produits revêtus d'un alliage à base d'al/zn |
EP2021523A1 (fr) * | 2006-05-24 | 2009-02-11 | Bluescope Steel Limited | Procédé de traitement de produits revêtus d'un alliage à base d'al/zn |
EP2021523A4 (fr) * | 2006-05-24 | 2011-04-13 | Bluescope Steel Ltd | Procédé de traitement de produits revêtus d'un alliage à base d'al/zn |
CN101454475B (zh) * | 2006-05-24 | 2011-04-20 | 蓝野钢铁有限公司 | 处理Al/Zn基合金涂覆产品的方法及所得到的产品 |
Also Published As
Publication number | Publication date |
---|---|
ATE161898T1 (de) | 1998-01-15 |
DE69501386T2 (de) | 1998-07-23 |
EP0710732A1 (fr) | 1996-05-08 |
FR2726578A1 (fr) | 1996-05-10 |
FR2726578B1 (fr) | 1996-11-29 |
ES2111380T3 (es) | 1998-03-01 |
DE69501386D1 (de) | 1998-02-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH02104650A (ja) | 鋼製のストリップをアルミニウムを用いて連続的に溶融被覆する方法 | |
EP0172030B1 (fr) | Application d'un revêtement par pulvérisation de métal liquide | |
EP0467749B1 (fr) | Procédé de revêtement d'aluminium par trempé à chaud d'une bande d'acier et bande d'acier inoxydable ferritique | |
AU592437B2 (en) | Hot dip aluminum coated chromium alloy steel | |
CA1100367A (fr) | Traduction non-disponible | |
US4441933A (en) | Method of making products of aluminium alloy suitable for drawing | |
EP0710732B1 (fr) | Procédé de revêtement au trempé et sans alliation d'une tole d'acier à bas interstitiel | |
EP0037143B1 (fr) | Procédé de revêtement à chaud | |
CA1240570A (fr) | Feuillard d'acier a galvanisation differentielle, et methode et dispositif pour sa production | |
CA1098385A (fr) | Traduction non-disponible | |
EP0126696B2 (fr) | Procédé de fabrication en continu d'une bande d'acier survieillie portant un revêtement de Zn ou d'alliage Zn-Al | |
KR20110113190A (ko) | 아연계 합금층으로 이산 물품을 코팅하는 방법 | |
BE1007964A6 (fr) | Procede de revetement d'une bande d'acier galvanisee. | |
EP1300477B1 (fr) | Procédé de recuit continu pour l'obtention d'un état de surface améliorée | |
EP0698671B1 (fr) | Procédé de revêtement d'aluminium par trempé à chaud d'une pièce, notamment d'une bande, en acier contenant au moins 0,1% en poids de manganèse, notamment en acier inoxydable et/ou allié | |
CA2044763C (fr) | Procede de production de bandes metalliques plaquees par vaporisation | |
US6231695B1 (en) | Method of heat-treating a thin sheet coated with ZnAL by hot dip galvanization | |
LU82208A1 (fr) | Procede de fabrication d'une bande d'acier revetue | |
JPS63118057A (ja) | 溶融アルミニウムめつき鋼板の製造方法 | |
BE1005964A6 (fr) | Procede de protection d'un produit siderurgique lamine a chaud. | |
BE1011425A3 (fr) | Procede de revetement d'une bande d'acier par galvanisation au trempe. | |
JPS6157374B2 (fr) | ||
JPH083716A (ja) | スプレーめっきによる高耐食性Zn−Al合金めっき鋼板の製造方法 | |
JPH07197230A (ja) | スプレーめっきによる合金化溶融亜鉛めっき鋼板の製造方法 | |
JPH0445286A (ja) | 溶融メッキ帯状金属の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE |
|
17P | Request for examination filed |
Effective date: 19960531 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
17Q | First examination report despatched |
Effective date: 19970321 |
|
RTI1 | Title (correction) | ||
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980107 |
|
REF | Corresponds to: |
Ref document number: 161898 Country of ref document: AT Date of ref document: 19980115 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
ITF | It: translation for a ep patent filed |
Owner name: BUGNION S.P.A. |
|
REF | Corresponds to: |
Ref document number: 69501386 Country of ref document: DE Date of ref document: 19980212 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2111380 Country of ref document: ES Kind code of ref document: T3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980407 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19980312 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980408 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: 78278 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980824 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D Ref document number: 78278 Country of ref document: IE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20020918 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20020925 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20020926 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20020930 Year of fee payment: 8 Ref country code: LU Payment date: 20020930 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20021002 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20021003 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20021009 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20021017 Year of fee payment: 8 Ref country code: DE Payment date: 20021017 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031019 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031019 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031019 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031020 Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031020 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031031 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031031 |
|
BERE | Be: lapsed |
Owner name: S.A. *SOLLAC Effective date: 20031031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040501 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040501 |
|
EUG | Se: european patent has lapsed | ||
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20031019 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040630 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20040501 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20031020 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20051019 |