EP1029940A1 - Procédé d'alumiage d'acier permettant d'obtenir une couche d'alliage interfaciale de faible epaisseur - Google Patents
Procédé d'alumiage d'acier permettant d'obtenir une couche d'alliage interfaciale de faible epaisseur Download PDFInfo
- Publication number
- EP1029940A1 EP1029940A1 EP00400358A EP00400358A EP1029940A1 EP 1029940 A1 EP1029940 A1 EP 1029940A1 EP 00400358 A EP00400358 A EP 00400358A EP 00400358 A EP00400358 A EP 00400358A EP 1029940 A1 EP1029940 A1 EP 1029940A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bath
- temperature
- phase
- steel
- immersion
- 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.)
- Granted
Links
Images
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
- C23C2/12—Aluminium or alloys based thereon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/923—Physical dimension
- Y10S428/924—Composite
- Y10S428/926—Thickness of individual layer specified
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/933—Sacrificial component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/939—Molten or fused coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
- Y10T428/1275—Next to Group VIII or IB metal-base component
- Y10T428/12757—Fe
Definitions
- the invention relates to a steel aluminizing process comprising a step of dipping the steel part to be coated in a liquid bath containing mainly aluminum.
- the internal layer of alloy having a fragile behavior one seeks generally to limit its thickness.
- Silicon is the most commonly used alloying inhibitor; to be effective, its weight concentration in the soaking bath is generally between 3 and 13%.
- the soaking baths are saturated in iron, due to the dissolution of the steel in the bath; this saturation leads to the well-known formation of mattes; the liquid bath is then in equilibrium with the solid phase of these mattes.
- the ⁇ 5 phase has a hexagonal structure and therefore crystallizes in the form of globular grains; it is sometimes called ⁇ H or H; the iron content of this phase is generally between 29 and 36% by weight; the silicon content of this phase is generally between 6 and 12% by weight; the balance consists mainly of aluminum; the chemical composition corresponds approximately to the formula Fe 3 Si 2 Al 12 .
- the ⁇ 6 phase has a monoclinic structure and therefore crystallizes in the form of flat and elongated grains; it is sometimes called ⁇ or M; the iron content of this phase is generally between 26 and 29% by weight; the silicon content of this phase is generally between 13 and 16% by weight; the balance consists mainly of aluminum; the chemical composition corresponds approximately to the formula Fe 2 Si 2 Al 9 .
- FIG. 1 represents in three dimensions, in a part of the ternary Al-Si-Fe diagram, the variations - vertical axis - of the equilibrium temperature of a liquid phase with different solid phases called as follows: FeAl 3 ⁇ ⁇ , Fe 3 Si 2 Al 12 ⁇ ⁇ 5 , Fe 2 Si 2 Al 9 ⁇ ⁇ 6 , FeSiAl 3 ⁇ ⁇ 2, FeSi 2 Al 4 ⁇ ⁇ , Al ⁇ aluminum, Si ⁇ silicon, and other less important phases like ⁇ 3, ⁇ 4.
- Phase ⁇ plays an important role in the invention presented below; its structure is monoclinic; it can contain up to 6% by weight of silicon in solid solution; the chemical composition therefore corresponds approximately to the formula FeAl 3 .
- Figure 2 is a projection of Figure 1; we deduce approximately the liquid-solid equilibrium temperature using isothermal curves; the temperature interval between each curve is 20 ° C.
- Table I summarizes the possible composition of phases ⁇ , ⁇ 5 and ⁇ 6.
- Composition of the bath and the main phases obtained after solidification of the aluminum coating Composition:% by mass al Yes Fe Bath > 86% 3 to 13% saturation ( e.g. 3%) eutectic 87 12.2 0.8 Phase ⁇ 6 55 to 61 13 to 16 26 to 29 Phase ⁇ 5 55 to 62 6 to 12 29 to 36 Phase ⁇ 52 to 64 0 to 6% 36 to 42
- the internal interfacial layer of the aluminum-based coating is therefore brittle ; it therefore tends to crack during the shaping of the parts aluminized, especially sheet metal; these cracks cause a decrease protection against corrosion provided by the coating; to get aluminized coatings more resistant both to shaping and to corrosion, it is therefore sought to limit the thickness of this interfacial layer.
- the object of the invention is therefore, in an aluminizing process of this type, to limit the thickness of the interfacial layer.
- Condition 2 leads to the use of baths with a silicon content greater than 7.5%, preferably of the order of 9% (see FIGS. 1 and 2).
- Applicant has determined conditions different from those of art which allow to achieve a significantly smaller thickness of interfacial layer and which go against the presuppositions underlying conventional methods of the prior art.
- the invention relates to a process for aluminizing a piece of steel comprising a step in which the part is dipped in a liquid aluminum-based bath, characterized in that the composition and the average temperature of this bath on the one hand, the temperature of immersion of this part in the bath on the other hand, are adapted to obtain, in the immersion zone of this part, a local temperature and composition of bath allowing an equilibrium with the solid phase called ⁇ whose composition corresponds approximately to the chemical formula FeAl 3 .
- the subject of the invention is also an aluminized steel sheet, the aluminized coating includes a layer of Al-Fe-Si alloy and a layer surface of aluminum, capable of being obtained by the process according to the invention, characterized in that said alloy layer comprises, on contact of the steel substrate, an underlay composed essentially of phase ⁇ .
- the thickness of this alloy layer is less than or equal to 3 ⁇ m.
- the aluminizing installation conventionally comprises means cleaning, annealing means, soaking means in a bath aluminizing, means for wringing the layer based on aluminum driven by the strip at the exit of the bath, cooling means and means for continuously scrolling the strip in the installation.
- the temperature of the strip when it returns in the bath, or immersion temperature of the strip is higher than the average bath temperature.
- the strip then enters the bath at a higher temperature to that of equilibrium with phase ⁇ 6 or ⁇ 5, it causes heating bath room in the strip immersion zone; this local warm-up causes a dissolution of the surface ferrite of the strip and a iron enrichment of the immersion zone.
- the temperature and the iron enrichment of the immersion zone must be sufficiently high so that, in this zone, the solid phase capable of being in equilibrium with the liquid phase corresponds to the ⁇ ⁇ FeAl phase. 3 ; in this way, in the immersion zone, the first solid sub-layer depositing on the steel strip corresponds to the FeAl 3 ⁇ ⁇ phase.
- the strip cools down to the average temperature of the bath which corresponds to the equilibrium temperature with the solid phase ⁇ 5 or ⁇ 6; so, on the first phase sublayer ⁇ , the interfacial layer is then formed main classic of the prior art, composed of phase ⁇ 5 or ⁇ 6.
- the strip running causes a layer which is wrung out and solidifies on cooling; we then obtains the aluminized strip according to the invention, the alloyed layer of which interfacial includes, in contact with steel, an underlay essentially composed of phase ⁇ .
- the aluminized strip according to the invention therefore resists a lot better for both corrosion and cracking.
- phase ⁇ is the fastest at be able to form on the tape at the start of immersion, that this formation fast limits the amount of ferrite that goes into solution in the bath, which also limits the thickness of the alloy layer.
- the invention adds a suitable condition to form in priority phase ⁇ on the substrate.
- the steels that can be used can also contain alloying elements as Ti between 0.1% and 1% by weight, and Al between 0.01% and 0.1% by weight, by example ferritic stainless steel referenced AISI 409; other elements of addition adapted to desired properties and / or other elements residuals may be present in these steels; when the steel contains these alloying, addition and / or residual elements, the coating obtained on the sheet is generally enriched with these elements.
- alloying elements as Ti between 0.1% and 1% by weight, and Al between 0.01% and 0.1% by weight, by example ferritic stainless steel referenced AISI 409; other elements of addition adapted to desired properties and / or other elements residuals may be present in these steels; when the steel contains these alloying, addition and / or residual elements, the coating obtained on the sheet is generally enriched with these elements.
- the invention makes it possible to limit, within the surface layer to aluminum base of the coating, the appearance of chromium-enriched phases; these phases are related to phase ⁇ 5 already described, contain the same proportion of Si that this phase ⁇ 5, contain more than 5% by weight of chromium, generally between 6% and 17% chromium; the presence of this phase in the surface layer of the coating is detrimental to the quality coating; the invention makes it possible to limit if not to eliminate this phase in the surface layer of the coating.
- the strip to be coated is at a temperature higher than that of the bath, we can serve as a band to warm the bath, to compensate for losses thermal baths, to maintain the bath at the desired temperature.
- this process is advantageous, since in the succession of stages through which the strip - annealing passes, cooling to immersion temperature, quenching, spinning, cooling for solidification - cooling after annealing less important than in the prior art.
- a bath is used, the composition and the average temperature are adapted to be in balance with phase ⁇ 6; we see that the mattes that result from these baths are less annoying in terms of the quality of the coating obtained than mattes that result from other baths, especially those whose composition and mean temperature are adapted to be in equilibrium with phase ⁇ 5.
- IF-Ti IF-Ti
- Ti means “Interstitial Free "in English," Ti "means that the carbon in the steel is blocked with titanium) in a conventional aluminizing bath saturated with iron, containing 9% by weight of silicon and maintained at the average temperature of approximately 675 ° C.
- the bath naturally saturating with iron until the appearance of solid mattes, the liquid phase of the bath is in equilibrium with the solid phase ⁇ 5 ⁇ Fe 3 Si 2 Al 12 .
- Table II summarizes the results obtained as a function of the immersion temperature. Thickness as a function of the strip temperature at immersion. Belt temperature: 675 ° C 720 ° C 730 ° C 750 ° C 765 ° C Alloy layer thickness ( ⁇ m) 5-6 6-7 2-3 4-5 7
- the strip should be soaked at a temperature above 720 ° C and lower 765 ° C, preferably around 730 ° C.
- Example 1 The procedure is as in Example 1 with the difference that the bath this time contains 8% by weight of silicon and its temperature is maintained at about 650 ° C; the cumulative duration of immersion in the bath and of the solidification of the coating is this time of the order of 11 seconds.
- Table III summarizes the results obtained as a function of the immersion temperature. Thickness as a function of the strip temperature at immersion. Belt temperature: 650 ° C 680 ° C 720 ° C 730 ° C 740 ° C Alloy layer thickness ( ⁇ m) 4 5 2-3 3 > 3
- the optimal immersion temperature is between 680 ° C and 740 ° C, preferably close to 720 ° C; according to figure 2, to reach the domain of existence of phase ⁇ , it would be advisable that the temperature is greater than or equal to approximately 700 ° C .; the domain of Preferred temperature would therefore correspond to the range 700-740 ° C.
- Example 1 The procedure is as in Example 1 with the difference that the bath this time contains 9.5% by weight of silicon and its temperature is maintained at about 650 ° C; the cumulative duration of immersion in the bath and of the solidification of the coating is this time of the order of 10 seconds.
- Table IV summarizes the results obtained as a function of the immersion temperature. Thickness as a function of the strip temperature at immersion. Belt temperature (° C) 650 700 715 740 750 760 Alloy layer thickness ( ⁇ m) 5-6 5-6 7 3 5 7-8
- the optimal immersion temperature is between 715 ° C and 760 ° C, preferably close to 740 ° C; according to figure 2, to reach the domain of existence of phase ⁇ , it would be advisable that the temperature is greater than or equal to approximately 740 ° C; the domain of Preferred temperature would therefore correspond to the range 740-760 ° C.
- Table V shows the conclusions of Examples 1 to 3.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Chemically Coating (AREA)
Abstract
Description
- une couche interfaciale ou interne, au contact de l'acier, essentiellement composée d'un ou plusieurs alliages à base d'aluminium du bain et de fer de l'acier ; on l'appelle également couche alliée ;
- et une couche externe, généralement plus épaisse, comprenant essentiellement une phase principale à base d'aluminium.
- la couche interfaciale alliée est essentiellement composée d'une phase dite τ5 et/ou d'une phase dite τ6 ; selon les conditions d'aluminiage, elle peut se subdiviser en plusieurs sous-couches alliées, notamment dans le cas de l'invention exposée ci-après.
- la couche externe est essentiellement composée d'aluminium sous forme de larges dendrites ; ces dendrites sont saturées en fer, et, le cas échéant, en silicium en solution solide.
Composition du bain et des principales phases obtenues après solidification du revêtement d'aluminium | |||
Composition : % massique | Al | Si | Fe |
Bain | >86% | 3 à 13% | saturation (ex. : 3%) |
Eutectique | 87 | 12,2 | 0,8 |
Phase τ6 | 55 à 61 | 13 à 16 | 26 à 29 |
Phase τ5 | 55 à 62 | 6 à 12 | 29 à 36 |
Phase | 52 à 64 | 0 à 6% | 36 à 42 |
- la composition et la température moyenne de ce bain sont adaptées pour être en équilibre avec la phase dite τ5 ou la phase dite τ6, de préférence avec la phase τ6.
- ce bain liquide est saturé en fer.
- la température d'immersion de cette pièce est supérieure à la température du bain.
- si la teneur en silicium dans le bain est de 8% environ, ladite température d'immersion est comprise entre 700 et 740°C, de préférence égale à environ 720°C.
- si la teneur en silicium dans le bain est de 9% environ, ladite température d'immersion est comprise entre 720 et 765°C, de préférence égale à environ 730°C.
- si la teneur en silicium dans le bain est de 9,5% environ, ladite température d'immersion est comprise entre 740 et 760°C, de préférence égale à environ 740°C.
- la figure 1 représente, en trois dimensions, dans une partie du diagramme ternaire Al-Si-Fe, les variations - axe vertical gradué en °C - de la température d'équilibre d'une phase liquide avec différentes phases solides d'aluminium, de silicium ou d'alliages AI-Si-Fe ; sur les axes horizontaux, sont reportés le pourcentage pondéral en Si d'une part (de 0 à 40%), et le pourcentage pondéral en Fe d'autre part (de 0 à 30%), le complément du ternaire étant de l'aluminium.
- la figure 2 est une projection de la figure 1, où les températures d'équilibre liquide-solide sont représentées à l'aide de courbes isothermes distantes de 20°C ; l'axe horizontal représente le pourcentage pondéral en silicium (« weight percentage silicon » en langue anglaise) gradué de 0 à 20%, l'axe oblique gauche représente le pourcentage pondéral en fer (« weight percentage iron» en langue anglaise) gradué de 0 à 14%, le complément du ternaire étant de l'aluminium (Al).
- en épaisseur, jusqu'à une distance de 30 µm environ de la surface de la bande
- en longueur, le long de la bande, entre, d'une part, le niveau de début de contact direct entre la surface solide de l'acier et le bain liquide et, d'autre part, le niveau où commence à se solidifier une couche interfaciale classique composée de phase τ5 ou τ6 par dessus la première sous-couche de phase propre à l'invention.
- suffisamment élevée pour que le premier composé solide à se former au contact de l'acier cristallise selon la phase ,
- suffisamment faible pour limiter l'épaisseur de la couche alliée interfaciale.
- aciers au carbone de type IF (voir exemple 1), aciers calmés aluminium, microalliés ou multiphasés comme les aciers dits « Dual Phase », ou « TRlPS » ;
- aciers ferritiques comprenant entre 0,5% et 20% en poids de chrome, notamment les aciers inoxydables comprenant généralement entre 6% et 20% de chrome.
Épaisseur en fonction de la température de bande à l'immersion. | |||||
Température de bande: | 675°C | 720°C | 730°C | 750°C | 765°C |
Épaisseur de la couche alliée (µm) | 5-6 | 6-7 | 2-3 | 4-5 | 7 |
Épaisseur en fonction de la température de bande à l'immersion. | |||||
Température de bande : | 650°C | 680°C | 720°C | 730°C | 740°C |
Épaisseur de la couche alliée (µm) | 4 | 5 | 2-3 | 3 | >3 |
Épaisseur en fonction de la température de bande à l'immersion. | ||||||
Température de bande (°C) | 650 | 700 | 715 | 740 | 750 | 760 |
Épaisseur de la couche alliée (µm) | 5-6 | 5-6 | 7 | 3 | 5 | 7-8 |
Température d'immersion en fonction de la teneur Si dans le bain. | |||
Teneur en Si dans bain : | 8% | 9% | 9,5% |
Domaine pratique de température d'immersion (°C) : | 700-740 | 720-765 | 740-760 |
Température optimale : | 720°C | 730°C | 740°C |
Claims (15)
- Procédé d'aluminiage d'une pièce d'acier comprenant une étape dans laquelle on trempe la pièce dans un bain liquide à base d'aluminium, caractérisé en ce que la composition et la température moyenne de ce bain d'une part, la température d'immersion de cette pièce dans le bain d'autre part, sont adaptées pour obtenir, dans la zone d'immersion de cette pièce, une température et une composition locales de bain permettant un équilibre avec la phase solide dite dont la composition correspond approximativement à la formule chimique FeAl3.
- Procédé selon la revendication 1 caractérisé en ce que la composition et la température moyenne de ce bain sont adaptées pour être en équilibre avec la phase dite τ5 ou la phase dite τ6.
- Procédé selon la revendication 2 caractérisé en ce que ladite zone d'immersion s'étend :en épaisseur, jusqu'à une distance de 30 µm environ de la surface de la dite pièce,en longueur, le long de la surface de ladite pièce, entre, d'une part, le début du contact direct entre l'acier de ladite surface et le bain liquide et, d'autre part, le début de la solidification d'une couche interfaciale composée de phase τ5 ou τ6.
- Procédé selon l'une quelconque des revendications 2 à 3, caractérisé en ce que la composition et la température moyenne de ce bain sont adaptées pour être en équilibre avec la phase τ6.
- Procédé selon l'une quelconque des revendications précédentes caractérisé en ce que ce bain liquide est saturé en fer.
- Procédé selon l'une quelconque des revendications précédentes caractérisé en ce que la température d'immersion de cette pièce est supérieure à la température du bain.
- Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que, si la teneur en silicium dans le bain est de 8% environ, ladite température d'immersion est comprise entre 700 et 740°C, de préférence égale à environ 720°C.
- Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que, si la teneur en silicium dans le bain est de 9% environ, ladite température d'immersion est comprise entre 720 et 765°C, de préférence égale à environ 730°C.
- Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que, si la teneur en silicium dans le bain est de 9,5% environ, ladite température d'immersion est comprise entre 740 et 760°C, de préférence égale à environ 740°C.
- Utilisation du procédé selon l'une quelconque des revendications 1 à 9 pour l'aluminiage d'une pièce d'acier au carbone.
- Utilisation du procédé selon l'une quelconque des revendications 1 à 9 pour l'aluminiage d'une pièce d'acier inoxydable.
- Tôle d'acier aluminiée dont le revêtement aluminié comprend une couche d'alliage Al-Fe-Si et une couche superficielle à base d'aluminium, susceptible d'être obtenue par le procédé selon l'une quelconque des revendications 1 à 9, caractérisé en ce que ladite couche d'alliage comprend, au contact du substrat d'acier, une sous-couche composée essentiellement de phase .
- Tôle selon la revendication 12 caractérisé en ce que l'épaisseur de la couche alliée est inférieure ou égale à 3 µm.
- Tôle selon l'une quelconque des revendications 12 à 13 caractérisé en ce que ledit acier est un acier au carbone.
- Tôle selon l'une quelconque des revendications 12 à 13 caractérisé en ce que ledit acier est un acier inoxydable.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9902050A FR2790010B1 (fr) | 1999-02-18 | 1999-02-18 | Procede d'aluminiage d'acier permettant d'obtenir une couche d'alliage interfaciale de faible epaisseur |
FR9902050 | 1999-02-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1029940A1 true EP1029940A1 (fr) | 2000-08-23 |
EP1029940B1 EP1029940B1 (fr) | 2004-10-27 |
Family
ID=9542256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000400358 Expired - Lifetime EP1029940B1 (fr) | 1999-02-18 | 2000-02-09 | Procédé d'aluminiage d'acier permettant d'obtenir une couche d'alliage interfaciale de faible epaisseur |
Country Status (9)
Country | Link |
---|---|
US (1) | US6309761B1 (fr) |
EP (1) | EP1029940B1 (fr) |
JP (1) | JP4629180B2 (fr) |
AT (1) | ATE280846T1 (fr) |
BR (1) | BR0000843B1 (fr) |
CA (1) | CA2298312C (fr) |
DE (1) | DE60015202T2 (fr) |
ES (1) | ES2231130T3 (fr) |
FR (1) | FR2790010B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011104443A1 (fr) * | 2010-02-24 | 2011-09-01 | Arcelormittal Investigación Y Desarrollo Sl | Procédé de fabrication d'une pièce a partir d'une tôle revêtue d'aluminium ou d'alliage d'aluminium |
EP3561141A4 (fr) * | 2016-12-23 | 2019-12-18 | Posco | Matériau en acier aluminisé par immersion à chaud doté d'une excellente résistance à la corrosion et une excellente aptitude au façonnage, et son procédé de fabrication |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2807069B1 (fr) * | 2000-03-29 | 2002-10-11 | Usinor | Tole en acier inoxydable ferritique revetue utilisable dans le domaine de l'echappement d'un moteur de vehicule automobile |
JP4751168B2 (ja) * | 2005-10-13 | 2011-08-17 | 新日本製鐵株式会社 | 加工性に優れた溶融Al系めっき鋼板及びその製造方法 |
DE102008006771B3 (de) * | 2008-01-30 | 2009-09-10 | Thyssenkrupp Steel Ag | Verfahren zur Herstellung eines Bauteils aus einem mit einem Al-Si-Überzug versehenen Stahlprodukt und Zwischenprodukt eines solchen Verfahrens |
DE102010014267A1 (de) | 2010-04-08 | 2011-10-13 | H.C. Starck Gmbh | Dispersionen, sowie Verfahren zur deren Herstellung und deren Verwendung |
KR101569505B1 (ko) * | 2014-12-24 | 2015-11-30 | 주식회사 포스코 | 내박리성이 우수한 hpf 성형부재 및 그 제조방법 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1409017A (en) * | 1914-12-23 | 1922-03-07 | Gen Electric | Compound metal body and method of making the same |
US2235729A (en) * | 1936-08-13 | 1941-03-18 | Crown Cork & Seal Co | Method of coating metal with aluminum |
US3058206A (en) * | 1956-12-27 | 1962-10-16 | Gen Electric | Aluminum coating of ferrous metal and resulting product |
FR1456754A (fr) * | 1965-08-30 | 1966-07-08 | Electrochimie Soc | Procédé de protection de métaux |
JPS5453632A (en) * | 1977-10-05 | 1979-04-27 | Kobe Steel Ltd | Formation method for molten aluminum resistant film on iron group metal surface |
EP0496678A1 (fr) * | 1991-01-23 | 1992-07-29 | Delot Process S.A. | Procédé de galvanisation en continu à haute température |
US5447754A (en) * | 1994-04-19 | 1995-09-05 | Armco Inc. | Aluminized steel alloys containing chromium and method for producing same |
EP0760399A1 (fr) * | 1995-02-24 | 1997-03-05 | Nisshin Steel Co., Ltd. | Tole aluminiee par immersion, son procede de production et dispositif de regulation de la couche d'alliage |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61124558A (ja) * | 1984-11-22 | 1986-06-12 | Nippon Steel Corp | 耐熱性アルミニウム表面処理鋼板の製造法 |
JP2787371B2 (ja) * | 1990-11-09 | 1998-08-13 | 新日本製鐵株式会社 | めっき密着性および外観性に優れたアルミめっき鋼板の製造法 |
JPH05311378A (ja) * | 1992-05-08 | 1993-11-22 | Nippon Steel Corp | めっき密着性の優れたアルミめっきCr含有鋼板およびその製造法 |
JP2852718B2 (ja) * | 1993-12-28 | 1999-02-03 | 新日本製鐵株式会社 | 耐食性に優れた溶融アルミニウムめっき鋼板 |
JP3383124B2 (ja) * | 1995-05-25 | 2003-03-04 | 新日本製鐵株式会社 | 塗装後耐食性に優れた建材用溶融アルミめっき鋼板およびその製造方法 |
JP3159135B2 (ja) * | 1997-07-18 | 2001-04-23 | 住友金属工業株式会社 | 微小スパングル溶融亜鉛合金めっき鋼板と製造方法 |
-
1999
- 1999-02-18 FR FR9902050A patent/FR2790010B1/fr not_active Expired - Lifetime
-
2000
- 2000-02-09 ES ES00400358T patent/ES2231130T3/es not_active Expired - Lifetime
- 2000-02-09 DE DE60015202T patent/DE60015202T2/de not_active Expired - Lifetime
- 2000-02-09 EP EP20000400358 patent/EP1029940B1/fr not_active Expired - Lifetime
- 2000-02-09 AT AT00400358T patent/ATE280846T1/de not_active IP Right Cessation
- 2000-02-10 CA CA002298312A patent/CA2298312C/fr not_active Expired - Lifetime
- 2000-02-18 US US09/506,586 patent/US6309761B1/en not_active Expired - Lifetime
- 2000-02-18 JP JP2000041707A patent/JP4629180B2/ja not_active Expired - Lifetime
- 2000-02-18 BR BRPI0000843-5A patent/BR0000843B1/pt not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1409017A (en) * | 1914-12-23 | 1922-03-07 | Gen Electric | Compound metal body and method of making the same |
US2235729A (en) * | 1936-08-13 | 1941-03-18 | Crown Cork & Seal Co | Method of coating metal with aluminum |
US3058206A (en) * | 1956-12-27 | 1962-10-16 | Gen Electric | Aluminum coating of ferrous metal and resulting product |
FR1456754A (fr) * | 1965-08-30 | 1966-07-08 | Electrochimie Soc | Procédé de protection de métaux |
JPS5453632A (en) * | 1977-10-05 | 1979-04-27 | Kobe Steel Ltd | Formation method for molten aluminum resistant film on iron group metal surface |
EP0496678A1 (fr) * | 1991-01-23 | 1992-07-29 | Delot Process S.A. | Procédé de galvanisation en continu à haute température |
US5447754A (en) * | 1994-04-19 | 1995-09-05 | Armco Inc. | Aluminized steel alloys containing chromium and method for producing same |
EP0760399A1 (fr) * | 1995-02-24 | 1997-03-05 | Nisshin Steel Co., Ltd. | Tole aluminiee par immersion, son procede de production et dispositif de regulation de la couche d'alliage |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 003, no. 079 (C - 051) 6 July 1979 (1979-07-06) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011104443A1 (fr) * | 2010-02-24 | 2011-09-01 | Arcelormittal Investigación Y Desarrollo Sl | Procédé de fabrication d'une pièce a partir d'une tôle revêtue d'aluminium ou d'alliage d'aluminium |
EP3561141A4 (fr) * | 2016-12-23 | 2019-12-18 | Posco | Matériau en acier aluminisé par immersion à chaud doté d'une excellente résistance à la corrosion et une excellente aptitude au façonnage, et son procédé de fabrication |
US11090907B2 (en) | 2016-12-23 | 2021-08-17 | Posco | Hot dip aluminized steel material having excellent corrosion resistance and workability, and manufacturing method therefor |
Also Published As
Publication number | Publication date |
---|---|
FR2790010B1 (fr) | 2001-04-06 |
JP4629180B2 (ja) | 2011-02-09 |
DE60015202D1 (de) | 2004-12-02 |
CA2298312A1 (fr) | 2000-08-18 |
ATE280846T1 (de) | 2004-11-15 |
CA2298312C (fr) | 2009-02-03 |
EP1029940B1 (fr) | 2004-10-27 |
BR0000843B1 (pt) | 2010-04-06 |
DE60015202T2 (de) | 2005-11-10 |
BR0000843A (pt) | 2000-09-26 |
ES2231130T3 (es) | 2005-05-16 |
JP2000239819A (ja) | 2000-09-05 |
US6309761B1 (en) | 2001-10-30 |
FR2790010A1 (fr) | 2000-08-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4990345B2 (ja) | メッキ表面品質に優れた高マンガン鋼の溶融亜鉛メッキ鋼板の製造方法 | |
RU2382833C2 (ru) | Способ нанесения покрытия на стальную полосу и стальная полоса (варианты) | |
JP4828544B2 (ja) | 鉄−炭素−マンガンの鋼帯に亜鉛浴にて溶融めっきを施すための方法 | |
WO2014122507A1 (fr) | TÔLE À REVÊTEMENT ZnAlMG À MICROSTRUCTURE PARTICULIÈRE ET PROCÉDÉ DE RÉALISATION CORRESPONDANT | |
EP1029940B1 (fr) | Procédé d'aluminiage d'acier permettant d'obtenir une couche d'alliage interfaciale de faible epaisseur | |
JP6025866B2 (ja) | 高マンガン熱延亜鉛めっき鋼板及びその製造方法 | |
EP0037143B1 (fr) | Procédé de revêtement à chaud | |
JPH04333552A (ja) | 高張力合金化溶融亜鉛めっき鋼板の製造方法 | |
JP3912014B2 (ja) | 合金化溶融亜鉛めっき鋼板およびその製造方法 | |
EP0939141B1 (fr) | Tôle dotée d'un revêtement d'aluminium résistant à la fissuration | |
LU85453A1 (fr) | Produit en acier galvanise a chaud,notamment destine a etre phosphate,et procede de preparation de ce produit | |
KR101115741B1 (ko) | 도금성이 우수한 고망간강 용융아연도금강판의 제조방법 | |
EP0594520B1 (fr) | Procédé de galvanisation de produits sidérurgiques et produits sidérurgiques ainsi obtenus | |
JPS648704B2 (fr) | ||
FR2546534A1 (fr) | Procede et installation de fabrication en continu d'une bande d'acier survieillie portant un revetement de zn, al ou d'alliage zn-al | |
KR101188065B1 (ko) | 도금 밀착성과 스폿 용접성이 우수한 용융아연도금강판 및 그 제조방법 | |
EP0579642B1 (fr) | Procede de galvanisation et alliage de zinc pouvant etre utilise dans ce procede | |
WO2004033745A1 (fr) | Tole ou feuille d'acier en sn-zn galvanisee par immersion a chaud presentant une resistance a la corrosion et une aptitude au façonnage excellentes | |
EP0848076B1 (fr) | Procédé de revêtement au trempé d'une tôle d'acier; tôle zinguee ou aluminiée obtenue par ce procédé | |
FR2742449A1 (fr) | Procede de galvanisation de tole d'acier contenant des elements d'addition oxydables | |
BE897788A (fr) | Revetement a base de fer - zinc - aluminium et procedes pour le realiser | |
EP0496678A1 (fr) | Procédé de galvanisation en continu à haute température | |
EP0111039A1 (fr) | Procédé de galvanisation et de recuit en continu à grande vitesse d'un fil métallique | |
BE1008566A6 (fr) | Substrat aluminie, son utilisation et methode pour le fabriquer. | |
BE883724A (fr) | Procede de revetement a chaud d'aciers au silicium |
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 CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20010223 |
|
AKX | Designation fees paid |
Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20030801 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: USINOR |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041027 Ref country code: AT 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: 20041027 Ref country code: FI 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: 20041027 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: FRENCH |
|
REF | Corresponds to: |
Ref document number: 60015202 Country of ref document: DE Date of ref document: 20041202 Kind code of ref document: P |
|
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: 20050127 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: 20050127 |
|
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: 20050209 Ref country code: CY 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: 20050209 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20050131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050228 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050228 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050228 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050228 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2231130 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
BERE | Be: lapsed |
Owner name: USINOR Effective date: 20050228 |
|
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 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
26N | No opposition filed |
Effective date: 20050728 |
|
BERE | Be: lapsed |
Owner name: *USINOR Effective date: 20050228 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20050327 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 18 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20190123 Year of fee payment: 20 Ref country code: ES Payment date: 20190301 Year of fee payment: 20 Ref country code: DE Payment date: 20190122 Year of fee payment: 20 Ref country code: GB Payment date: 20190125 Year of fee payment: 20 Ref country code: IT Payment date: 20190122 Year of fee payment: 20 Ref country code: NL Payment date: 20190128 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20190128 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 60015202 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MK Effective date: 20200208 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20200208 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20200208 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20200723 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20200210 |