EP0879901B1 - Schutzbeschichtung für Metallteile mit einem guten Widerstand gegen Korrosion in einer salzhaltigen Atmosphäre und Metallteile mit einer solchen Schutzbeschichtung - Google Patents

Schutzbeschichtung für Metallteile mit einem guten Widerstand gegen Korrosion in einer salzhaltigen Atmosphäre und Metallteile mit einer solchen Schutzbeschichtung Download PDF

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Publication number
EP0879901B1
EP0879901B1 EP98401213A EP98401213A EP0879901B1 EP 0879901 B1 EP0879901 B1 EP 0879901B1 EP 98401213 A EP98401213 A EP 98401213A EP 98401213 A EP98401213 A EP 98401213A EP 0879901 B1 EP0879901 B1 EP 0879901B1
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EP
European Patent Office
Prior art keywords
zinc
coating
tin
protective coating
alloy
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Expired - Lifetime
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EP98401213A
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English (en)
French (fr)
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EP0879901A1 (de
Inventor
Michel Ruimi
Jean-Paul Guerbert-Jubert
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Safran Aircraft Engines SAS
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SNECMA Moteurs SA
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    • 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
    • C23C28/021—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 including at least one metal alloy layer
    • 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
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/565—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of zinc
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/60—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of tin
    • 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
    • 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.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12611—Oxide-containing 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
    • 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.]
    • Y10T428/12708—Sn-base 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
    • 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.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12785—Group IIB metal-base component
    • Y10T428/12792—Zn-base 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
    • 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.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12785—Group IIB metal-base component
    • Y10T428/12792—Zn-base component
    • Y10T428/12799—Next to Fe-base component [e.g., galvanized]

Definitions

  • the invention relates to a protective coating for parts. metal having good corrosion resistance in saline atmosphere and a metal part comprising such a coating. It applies in particular to protection aeronautical steel parts such as aircraft engines that require a high degree of safety and protection of aluminum alloy parts beforehand coated with a chemical zincate undercoat.
  • cadmium deposited by the electrolytic as a protective anodic coating. This coating can be used hot up to temperatures of around 235 ° C.
  • cadmium presents a risk of corrosion intergranular with cracks on contact with titanium and its alloys, and catalytic actions unfavorable in contact with synthetic oils and fuels.
  • Document JP 05033 188A describes a process for preparing a coating multilayer comprising on a steel substrate, a layer of tin, a layer of zinc and nickel alloy and a layer of tin and zinc.
  • Sheet steel coated is used to produce boxes.
  • the coating requiring three successive layers is expensive to make and increases the weight of coated parts significantly, which is detrimental in the case of application to aeronautical parts where one always seeks to obtain gains in mass.
  • the invention aims to develop a protective coating a metal part not containing cadmium, constituting an effective anodic protection against corrosion in a saline atmosphere and in alternating cycling, and having a low sensitivity to galvanic corrosion.
  • the invention relates to a binary coating of an alloy of tin and zinc comprising 8 to 35% by weight zinc.
  • the metal substrate is provided with a protective coating against corrosion resistance in saline atmosphere is characterized in that it comprises at minus a layer of a tin and zinc alloy containing between 8 and 35% by weight of zinc, an underlay of an alloy zinc and nickel containing between 10 and 16% by weight of nickel, the underlay being arranged between the part metal and the tin and zinc alloy layer, and the thickness proportion of the two alloys of the coating being two-thirds for the zinc-nickel alloy and one third for the tin and zinc alloy.
  • the tin and zinc alloy comprises between 12 and 25% by weight of zinc.
  • the coating further comprises a film chromate outer.
  • the layer of tin and zinc alloy and / or the zinc and nickel alloy underlay are deposited by electrolysis.
  • the invention also relates to a metal part comprising a protective coating against atmospheric corrosion saline.
  • coating To constitute an effective coating for the protection of metal parts against salt corrosion, coating must behave anodically with respect to the substrate metallic, i.e. it must have a behavior sacrificial in relation to the substrate.
  • the galvanic coupling between the coating and the substrate must be low to reduce the risk of sensitivity of the coating to galvanic corrosion and increase its duration of life.
  • a binary electrolytic coating consisting of a alloy of tin and zinc comprising between 8 and 35% in weight of zinc and preferably between 12 and 25% by weight zinc, exhibits salt corrosion behavior satisfactory even under severe cycling conditions alternating, and weak galvanic coupling with a substrate metallic.
  • the electrolytic coating of tin and zinc is used in a sandwich type coating. In that case it is deposited on a sub-layer of a zinc alloy of nickel comprising 10 to 16% by weight of nickel.
  • the alloy of zinc and nickel is electrolytically deposited on the metallic substrate.
  • the temperature range of the electrolysis bath is between 63 and 67 ° C; the range of cathodic current densities applied during electrolysis is between 1 and 3 A / dm 2 ; the range of applied voltages is between 2 and 5V.
  • the anodes used are preferably tin-zinc alloy anodes, comprising for example 75% by weight of tin and 25% by weight of zinc.
  • the composition of the electrolytic bath can be different; in particular, for health and safety reasons, the cyanide complexing agent can be replaced by an alkaline nitrogen complexing agent which is not cyanide comprising for example one or more amine functions and / or one or more amide functions.
  • the electrolytic coating of zinc and nickel (10 to 16% by weight of nickel) is carried out using an electrolytic bath known under the commercial name Slotoloy ZN50.
  • the additive with the trade name ZN51 is a complexing agent comprising amines; the trade name additives ZN52 and ZN53 are grain refiners.
  • Zinc is introduced in the form of zinc oxide ZnO; nickel is introduced in the form of NiSO 4 , 6H 2 O.
  • the anodes used are nickel anodes.
  • the temperature range of the electrolysis bath is between 63 and 67 ° C; the range of cathodic current densities applied during electrolysis is between 1 and 3 A / dm 2 ; the range of applied voltages is between 3 and 6 V.
  • Figure 1 represents a comparative table of the values of initial dissolution potentials and measured after one time t equal to 5 minutes, and the coupling value galvanic of different types of coatings made on steel substrates.
  • Measuring electrochemical dissolution potentials assesses the risks of sensitivity to galvanic corrosion that may exist between a coating and the substrate on which it is deposited.
  • galvanic coupling values greater than 250mV in the medium wet are likely to cause corrosion galvanic which results in a preferential attack of the coating if it has a sacrificial behavior by compared to the substrate on which it is deposited.
  • the measurement of electrochemical potentials for dissolving materials or coatings shown in the table in Figure 1, is performed using an electronic multi-meter in using a saturated calomel reference electrode (noted ECS).
  • the electrolyte used is a solution comprising 30 g / l of sodium chloride, 1.284 g / l of sodium phosphate and 0.187 g / l of boric acid.
  • the pH of the solution electrolytic is maintained at 8 ⁇ 0.1 and the measurements are performed at room temperature.
  • the coatings considered are a cadmium coating deposited on a XES steel substrate without chromic finish and followed by a chromic finish; a coating of a alloy of tin and zinc comprising 8 to 35% by weight of zinc deposited on an unfinished XES steel substrate chromic and followed by a chromic finish; a coating of an alloy of zinc and nickel comprising 10 to 16% in nickel weight followed by a chrome finish.
  • the coating of cadmium is used as a reference.
  • the values of measured electrochemical dissolution potentials show that all coatings have a sacrificial behavior, the steel substrate provided with one of the coatings considered being more anodic than steel alone.
  • the low galvanic coupling value between XES steel and a coating of a tin and zinc alloy containing 8 to 35% by weight of zinc suggests a long service life of this type of coating.
  • FIG. 1 also shows that the deposition of a film of chromate, called chromic finish, on the coating of protection is particularly advantageous because it allows significantly reduce the value of the galvanic coupling between the steel substrate and the coating and thereby increase considerably the life of the coating.
  • chromic finish a film of chromate
  • Coating resistance tests in the presence of fog saline and alternating cycling were performed for all coatings considered in Figure 1 as well as for a additional coating, called sandwich coating, comprising a first layer consisting of a coating electrolytic alloy of zinc and nickel comprising 10 to 16% by weight of nickel and a second layer made of an electrolytic coating of an alloy tin and zinc comprising 8 to 35% by weight of zinc.
  • the thicknesses of all the coverings considered are between 10 and 15 ⁇ m.
  • cadmium coatings have excellent behavior in the presence of fog saline. After 336 hours of exposure, no corrosion of the steel substrate is not observed, which confirms the protective effect of this coating with respect to steel.
  • the electrolytic coating of an alloy of zinc and nickel comprising 10 to 16% by weight of nickel and the electrolytic coatings of a tin and zinc alloy containing 8 to 35% by weight of zinc have behaviors similar in the presence of salt spray. From 216 hours of exposure to salt spray, fine drips of white corrosion appear, but these do not evolve not over time. After 336 hours of exposure to salt spray, no attack on the steel substrate is observed.
  • the Zn - Ni coatings (10 to 16% by weight Ni), Sn - Zn (8 to 35% by weight Zn) and sandwich 2/3 Zn - Ni (10 to 16% by weight Ni) + 1/3 Sn - Zn (8 to 35% by weight Zn) have very close behavior in salt corrosion up to 336 hours of exposure to salt spray.
  • Results obtained after exposure to salt spray are frequently different from the corrosion observed during exposure to the Earth's atmosphere. This is due to cyclical variations in climatic conditions and particular humidity, temperature, exposure to sunlight.
  • Each cycle consists of exposing a given material for 15 hours in salt spray at a temperature of 35 ° C, then at place this material at a predetermined high temperature for 6 hours.
  • High temperature is chosen lower than the melting point of the different elements of the coating.
  • the temperature high is chosen equal to 235 ° C; for coating containing a tin and zinc alloy and the coating sandwich, the high temperature is chosen equal to 150 ° C in because of the low melting point of tin.
  • the behavior, in alternating cycling, of the coating electrolytic alloy of tin and zinc comprising 8 to 35% by weight of zinc is similar to the behavior of electrolytic coating of zinc and nickel alloy.
  • 15 to 20% of the surface of the steel substrate is attacked by white corrosion.
  • the sandwich coating has the best behavior in saline corrosion and in alternating cycling compared to the zinc-nickel and tin-zinc coatings considered and constitutes an effective protection against corrosion of a steel part when the latter is used in severe conditions.
  • Zinc-nickel and tin-zinc coatings can also be used as protective coatings on steel parts, in cases where the conditions of use of the parts are less severe.
  • Zinc-nickel and tin-zinc coatings can also be applied to metal parts other than steel, such as, for example, aluminum alloy parts previously coated with an underlayer of chemical zincate.
  • the invention is not limited to the examples of embodiments precisely described; in particular the choice of an electrolytic route for depositing the alloys of the coating is advantageous in terms of the cost of producing the deposit and makes it possible to control the concentration of the elements of the alloy in a simple manner by choosing a density value of cathodic current applied during electrolysis and by the choice of an applied voltage value, but the deposition of the alloys considered can also be carried out by any other known method.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Laminated Bodies (AREA)

Claims (9)

  1. Metallsubstrat mit einer Schutzbeschichtung gegen Korrosion in salzhaltiger Atmosphäre,
       dadurch gekennzeichnet,    dass es mindestens eine Schicht einer Zinn- und Zink-Legierung aufweist, die zwischen 8 und 35 % Gewichtanteilen Zink enthält, sowie eine Unterschicht einer Zink- und Nickel-Legierung aufweist, die zwischen 10 und 16 % Gewichtanteilen Nickel enthält, wobei die Unterschicht zwischen dem Metallteil und der Zinn- und Zink-Legierungsschicht angeordnet ist, und wobei das Verhältnis der Stärken der beiden Legierungen der Beschichtung zwei Drittel Zink- und Nickel-Legierung zu einem Drittel Zinn- und Zink-Legierung beträgt.
  2. Metallsubstrat mit einer Schutzbeschichtung für Metallteile nach Anspruch 1,
       dadurch gekennzeichnet,    dass die Zinn- und Zink-Legierungsschicht zwischen 12 und 25 % Gewichtanteile Zink enthält.
  3. Metallsubstrat mit einer Schutzbeschichtung für Metallteile nach einem der vorherigen Ansprüche,
       dadurch gekennzeichnet,    dass es ferner außen einen Chromatfilm aufweist.
  4. Metallsubstrat mit einer Schutzbeschichtung für Metallteile nach einem der vorherigen Ansprüche,
       dadurch gekennzeichnet,    dass die Zinn- und Zink-Legierungsschicht und/oder die Zink- und Nickel-Legierungsunterschicht durch Elektrolyse aufgebracht werden.
  5. Metallsubstrat mit einer Schutzbeschichtung für Metallteile nach Anspruch 4,
       dadurch gekennzeichnet,    dass der galvanische Niederschlag der Zinn- und Zink-Legierung und/oder der Zink- und Nickel-Legierung unter Verwendung von galvanischen Bädern erfolgt, die kein Zusatzmittel wie organisches oder metallisches Glanzmittel enthält.
  6. Metallsubstrat mit einer Schutzbeschichtung für Metallteile nach Anspruch 5,
       dadurch gekennzeichnet,    dass die Zusammensetzung des für den Niederschlag der Zinn- und Zink-Legierung verwendeten galvanischen Bades die folgende ist:
    Natriumstannat   67 g/l
    Zinkcyanid   5,4 g/l
    Natriumkarbonat   5 g/l
    Natriumcyanid   28 g/l
  7. Metallsubstrat mit einer Schutzbeschichtung für Metallteile nach Anspruch 6,
       dadurch gekennzeichnet,    dass der in dem Zinkcyanid und dem Natriumcyanid verwendete Komplexbildner Cyanid durch einen stickstoffhaltigen, alkalischen, nicht cyanidhaltigen Komplexbildner ersetzt wird.
  8. Metallsubstrat mit einer Schutzbeschichtung für Metallteile nach einem der Ansprüche 4 bis 6,
       dadurch gekennzeichnet,    dass der galvanische Niederschlag der Zinn- und Zink-Legierung unter Verwendung von Anoden mit legiertem Zinn und Zink erfolgt.
  9. Metallteil mit einer Schutzbeschichtung gegen Korrosion in salzhaltiger Atmosphäre nach einem der vorherigen Ansprüche.
EP98401213A 1997-05-22 1998-05-20 Schutzbeschichtung für Metallteile mit einem guten Widerstand gegen Korrosion in einer salzhaltigen Atmosphäre und Metallteile mit einer solchen Schutzbeschichtung Expired - Lifetime EP0879901B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9706232A FR2763605B1 (fr) 1997-05-22 1997-05-22 Revetement de protection de pieces metalliques ayant une bonne resistance a la corrosion en atmosphere saline, et pieces metalliques comportant un tel revetement de protection
FR9706232 1997-05-22

Publications (2)

Publication Number Publication Date
EP0879901A1 EP0879901A1 (de) 1998-11-25
EP0879901B1 true EP0879901B1 (de) 2002-03-20

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US (1) US5989735A (de)
EP (1) EP0879901B1 (de)
JP (1) JP3340386B2 (de)
CA (1) CA2238061C (de)
DE (1) DE69804267T2 (de)
ES (1) ES2171003T3 (de)
FR (1) FR2763605B1 (de)

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Publication number Priority date Publication date Assignee Title
DE29801049U1 (de) * 1998-01-22 1998-04-30 Emhart Inc., Newark, Del. Karosseriebauteil mit einer Zinn-Zink-Beschichtung
US6368486B1 (en) * 2000-03-28 2002-04-09 E. I. Du Pont De Nemours And Company Low temperature alkali metal electrolysis
FR2856172A1 (fr) * 2003-06-16 2004-12-17 Neopost Ind Machine d'affranchissement a dispositif d'alimentation en encre integre
US8021744B2 (en) 2004-06-18 2011-09-20 Borgwarner Inc. Fully fibrous structure friction material
US8088498B2 (en) * 2007-05-23 2012-01-03 Hamilton Sundstrand Corporation Electro-formed sheath for use on airfoil components
EP2233611A1 (de) * 2009-03-24 2010-09-29 MTV Metallveredlung GmbH & Co. KG Schichtsystem mti verbesserter Korrosionsbeständigkeit
US20130192982A1 (en) * 2012-02-01 2013-08-01 United Technologies Corporation Surface implantation for corrosion protection of aluminum components
JP5858198B2 (ja) * 2013-10-18 2016-02-10 新日鐵住金株式会社 めっき鋼材、塗装鋼材及びめっき鋼材の製造方法

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US2675347A (en) * 1951-10-15 1954-04-13 Metal & Thermit Corp Plating of tin-zinc alloys
JPS63290292A (ja) * 1987-05-20 1988-11-28 Nippon Steel Corp 耐錆性、溶接性に優れた薄Ｓｎメツキ鋼板の製造方法
US5275892A (en) * 1987-11-05 1994-01-04 Whyco Chromium Company, Inc. Multi-layer corrosion resistant coating for fasteners and method of making
GB2230537B (en) * 1989-03-28 1993-12-08 Usui Kokusai Sangyo Kk Heat and corrosion resistant plating
DE69106522T2 (de) * 1990-08-31 1995-07-20 Barry Beresford Thomas K Elektroplattierung.
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US5491035A (en) * 1992-03-27 1996-02-13 The Louis Berkman Company Coated metal strip

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DE69804267D1 (de) 2002-04-25
CA2238061C (fr) 2005-07-12
CA2238061A1 (fr) 1998-11-22
EP0879901A1 (de) 1998-11-25
ES2171003T3 (es) 2002-08-16
JPH10330964A (ja) 1998-12-15
JP3340386B2 (ja) 2002-11-05
DE69804267T2 (de) 2002-11-21
FR2763605B1 (fr) 1999-07-02
FR2763605A1 (fr) 1998-11-27
US5989735A (en) 1999-11-23

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