EP2103706A1 - Legierung für Beschichtungen durch Pulverspritzen - Google Patents

Legierung für Beschichtungen durch Pulverspritzen Download PDF

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Publication number
EP2103706A1
EP2103706A1 EP08447018A EP08447018A EP2103706A1 EP 2103706 A1 EP2103706 A1 EP 2103706A1 EP 08447018 A EP08447018 A EP 08447018A EP 08447018 A EP08447018 A EP 08447018A EP 2103706 A1 EP2103706 A1 EP 2103706A1
Authority
EP
European Patent Office
Prior art keywords
powder
substrate
process according
coating
deposition
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.)
Withdrawn
Application number
EP08447018A
Other languages
English (en)
French (fr)
Inventor
Xavier Vanden Eynde
Michel Bordignon
Maïwen Larnicol
Jean Crahay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Priority to EP08447018A priority Critical patent/EP2103706A1/de
Priority to PCT/EP2008/067942 priority patent/WO2009083483A1/fr
Publication of EP2103706A1 publication Critical patent/EP2103706A1/de
Withdrawn legal-status Critical Current

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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
    • C23C2/261—After-treatment in a gas atmosphere, e.g. inert or reducing atmosphere
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/265—After-treatment by applying solid particles to the molten coating
    • 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C23C24/106—Coating with metal alloys or metal elements only
    • 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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate

Definitions

  • the object of the present invention is to obtain a metal substrate having a zinc-based coating whose corrosion resistance is improved, more particularly by adding magnesium in this coating.
  • Magnesium is indeed well known to greatly improve corrosion resistance.
  • Today alloys Zn-Al-Mg type are deposited by PVD ( physical vapor deposition ) or immersion in a bath.
  • Various coatings have thus been patented and are especially known under the trade names Superdyma ® (Zn, 10% Al, 3% Mg, 0.2% Si), ZAM for ZincAluminium-Magnesium (Zn, 6% Al, 3% Mg) or Magizinc TM (Zn, 1% Al, 1% Mg), etc.
  • These alloys containing magnesium are however fragile and crack during deformation of the substrate.
  • the object of the invention is to provide a metal substrate coating that makes it possible to overcome the drawbacks of the state of the art.
  • the object of the invention is to incorporate, in the alloy constituting this coating, magnesium in order essentially to improve the resistance to corrosion while preserving the resistance to cracking and facilitating the deposition means. More generally, the invention aims to flexibly modify the chemical composition of the coating layer.
  • a first object of the present invention relates to a method of coating a metal substrate by deposition of a metal powder composed of a plurality of different chemical elements, characterized in that , at at the time of deposition, said substrate is brought to a temperature higher than the lowest liquidus temperature of said chemical elements and their alloys, so that said powder can melt at least partially during contact with the substrate.
  • the melting temperature defined for the pure substances is in fact replaced by the temperature of liquidus, which is the temperature at which the first crystals appear in the liquid.
  • a second object of the present invention relates to a metallurgical product or long coated coated obtained by carrying out the method described above, in the case where the powder deposition is performed on a "solid surface Comprising a coating with a thickness of between 1 and 80 ⁇ m.
  • a third object of the present invention relates to a coated metallurgical product or long flat obtained by implementing the method described above, in the case where the deposition of powder is carried out on "liquid surface ", Comprising a coating thickness between 5 and 80 ⁇ m for a long product and between 1 and 40 ⁇ m for a flat product.
  • the figure 1 schematically represents a powder deposition installation per fluidized bed on a wire at the outlet of a zinc bath, according to the present invention.
  • the figure 2 represents a micrographic section obtained on a steel wire before (bottom view) and after (top view) the projection of a zinc powder rich in magnesium and aluminum according to the present invention.
  • the reference sign 1 represents the steel, the sign 2 the intermetallic layer and the sign 3 the coating.
  • the present invention consists in producing a metal powder deposit, containing magnesium, on a metal substrate, coated or not.
  • the powder used according to the invention is typically composed of a zinc alloy containing aluminum (0.1 to 15%, by weight) with a large amount of magnesium (0.1 to 50%, typically 2 to 8%). %, in weight). Silicon can also be added to limit the reactivity of the powder with the substrate (max 0.2%, by weight).
  • the following alloying elements may also be included: lithium, bismuth, tin, titanium, copper, nickel, chromium, manganese, molybdenum, tungsten, tantalum, zirconium, lanthanum, cerium, strontium, boron, calcium, vanandium, etc.
  • this powder is sprayed with a carrier gas at a speed preferably between 1 and 250 m / s, is electrostatically charged or not or is deposited, or by placing (type line "Batch"), or by scrolling ("continuous" type line) the substrate in a fluidized bed.
  • a carrier gas at a speed preferably between 1 and 250 m / s, is electrostatically charged or not or is deposited, or by placing (type line "Batch"), or by scrolling ("continuous" type line) the substrate in a fluidized bed.
  • FIG. figure 1 An example of a fluidized bed powder deposition installation according to the present invention is shown in FIG. figure 1 .
  • the metal substrate intended to receive the powder according to the invention can be in any usual form such as for example a wire, a strip or a profiled piece such as a beam or sheet pile.
  • This metal substrate which may be steel, copper, brass, aluminum, etc., may be pre-coated or not with zinc, aluminum or a zinc / aluminum alloy, for example.
  • This pre-coating may be liquid or solid depending on the final type of coating targeted.
  • the powder projection can produce a second very thin coating (typically ⁇ 10 .mu.m) but very rich in magnesium on a solid coating.
  • the advantage of this process is to deposit a magnesium-rich layer, known for its fragility, on a ductile coating based on zinc or zinc / aluminum.
  • the final coating can thus have excellent deformation and stamping capabilities, because the microcracks obtained on the final coating will be invisible to the naked eye and therefore not impeding the quality criteria required for parts of visible aspect.
  • the figure 2 shows for example a micrographic section obtained on a wire 1 before (bottom view) and after (top view) the projection of a zinc powder rich in magnesium (3% by weight) and aluminum (8% by weight). It is clear that a new type of coating has been obtained with a layer richer in magnesium 3 and an intermetallic iron / zinc 2 containing a large amount of aluminum.
  • the powder will preferably be unheated. It may, however, be preheated, preferably in a controlled atmosphere, below its melting point to improve the final quality of the coating. Similarly, the atmosphere around the projection area of the powder may be controlled for example to limit the oxidation of the coating and / or powder.
  • Another advantage of the process according to the invention is that it has a great flexibility of application without necessity, as in the state of the technical, to control the composition and temperature of the dipping liquid metal bath, as well as the holding of all submerged equipment.
  • Another original application of the process according to the invention consists in creating successive layers in number at least greater than two, in particular lubricating surface layers for forming the substrate.
  • the coating obtained after the projection of powder may undergo a heat treatment and possibly a melting to modify the properties (structure, roughness, gloss, etc.). It may also undergo a "skin pass" (in the case of a sheet) or wire drawing to impose a specific roughness, able to receive other coatings of the organic type or to improve the adhesion of the powder.
  • the metal powders mainly based on Zn, Al, Mg may be combined with other powders of the carbide or oxide type to increase the hardness of the final coating, to modify its appearance (gloss, etc.) or its adhesion properties. a future organic coating.
  • the particle size of the powders may be quite large (between 1 .mu.m and 100 .mu.m) depending on the thickness of the final coating.
  • the powder to be deposited will preferably always have the largest particle size possible to reduce its manufacturing cost and improve the quality of the final product. Indeed, since the magnesium-containing powders are always covered with an oxide, it is appropriate to minimize the pollution of the final coating by this oxide by choosing the largest possible particle size.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP08447018A 2007-12-20 2008-03-17 Legierung für Beschichtungen durch Pulverspritzen Withdrawn EP2103706A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08447018A EP2103706A1 (de) 2008-03-17 2008-03-17 Legierung für Beschichtungen durch Pulverspritzen
PCT/EP2008/067942 WO2009083483A1 (fr) 2007-12-20 2008-12-18 Alliage de revetement obtenu par projection de poudre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08447018A EP2103706A1 (de) 2008-03-17 2008-03-17 Legierung für Beschichtungen durch Pulverspritzen

Publications (1)

Publication Number Publication Date
EP2103706A1 true EP2103706A1 (de) 2009-09-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08447018A Withdrawn EP2103706A1 (de) 2007-12-20 2008-03-17 Legierung für Beschichtungen durch Pulverspritzen

Country Status (2)

Country Link
EP (1) EP2103706A1 (de)
WO (1) WO2009083483A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2417136C1 (ru) * 2009-10-13 2011-04-27 Федеральное Государственное Унитарное Предприятие "Центральный Научно-Исследовательский Институт Конструкционных Материалов "Прометей" (Фгуп "Цнии Км "Прометей") Способ получения агломерированных дисперсных частиц системы "металл-неметалл" износостойкого класса

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1343654A (en) 1971-06-11 1974-01-16 Centre De Recherches Metallurgiques Coating sheet metal
FR2354389A1 (fr) * 1976-06-07 1978-01-06 Kobe Steel Ltd Procede de traitement de surface d'un metal par un systeme a lit fluidise applicable notamment a la galvanisation des fils d'acier
JPS5858263B2 (ja) 1978-05-26 1983-12-24 アルフレツド テヴエス ゲ−エムベ−ハ− オ−トバイブレ−キ装置用ブレ−キ力調整器
JPH0293053A (ja) * 1988-09-29 1990-04-03 Kobe Steel Ltd 高耐蝕性溶融Ｚｎ−Ｍｇ系合金めっき鋼板の製造方法
JPH02118088A (ja) 1988-10-26 1990-05-02 Nkk Corp 加工性、塗装性に優れた合金化溶融亜鉛めっき鋼板の製造方法
JPH02267250A (ja) 1989-04-05 1990-11-01 Kobe Steel Ltd 溶融金属めっき装置用の粉末噴射装置及びその噴射方法
WO1994029030A1 (en) * 1993-06-11 1994-12-22 Sms Engineering, Inc. Method and apparatus to galvanize a ferrous substrate
EP0769567A1 (de) * 1995-10-19 1997-04-23 Sollac S.A. Verfahren zur Beschichtung eines Blechs
JPH101766A (ja) 1996-06-11 1998-01-06 Nippon Steel Corp 耐食性及び耐傷付き性に優れた溶射皮膜
KR20010063534A (ko) 1999-12-22 2001-07-09 이구택 내 파우더링성이 우수한 후도금 합금화 용융아연도금강판의 제조방법
US20070240603A1 (en) * 2004-02-13 2007-10-18 Ko Kyung-Hyun Porous Coated Member and Manufacturing Method Thereof Using Cold Spray

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1343654A (en) 1971-06-11 1974-01-16 Centre De Recherches Metallurgiques Coating sheet metal
FR2354389A1 (fr) * 1976-06-07 1978-01-06 Kobe Steel Ltd Procede de traitement de surface d'un metal par un systeme a lit fluidise applicable notamment a la galvanisation des fils d'acier
JPS5858263B2 (ja) 1978-05-26 1983-12-24 アルフレツド テヴエス ゲ−エムベ−ハ− オ−トバイブレ−キ装置用ブレ−キ力調整器
JPH0293053A (ja) * 1988-09-29 1990-04-03 Kobe Steel Ltd 高耐蝕性溶融Ｚｎ−Ｍｇ系合金めっき鋼板の製造方法
JPH02118088A (ja) 1988-10-26 1990-05-02 Nkk Corp 加工性、塗装性に優れた合金化溶融亜鉛めっき鋼板の製造方法
JPH02267250A (ja) 1989-04-05 1990-11-01 Kobe Steel Ltd 溶融金属めっき装置用の粉末噴射装置及びその噴射方法
WO1994029030A1 (en) * 1993-06-11 1994-12-22 Sms Engineering, Inc. Method and apparatus to galvanize a ferrous substrate
EP0769567A1 (de) * 1995-10-19 1997-04-23 Sollac S.A. Verfahren zur Beschichtung eines Blechs
JPH101766A (ja) 1996-06-11 1998-01-06 Nippon Steel Corp 耐食性及び耐傷付き性に優れた溶射皮膜
KR20010063534A (ko) 1999-12-22 2001-07-09 이구택 내 파우더링성이 우수한 후도금 합금화 용융아연도금강판의 제조방법
US20070240603A1 (en) * 2004-02-13 2007-10-18 Ko Kyung-Hyun Porous Coated Member and Manufacturing Method Thereof Using Cold Spray

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2417136C1 (ru) * 2009-10-13 2011-04-27 Федеральное Государственное Унитарное Предприятие "Центральный Научно-Исследовательский Институт Конструкционных Материалов "Прометей" (Фгуп "Цнии Км "Прометей") Способ получения агломерированных дисперсных частиц системы "металл-неметалл" износостойкого класса

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Publication number Publication date
WO2009083483A1 (fr) 2009-07-09

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