EP0677592A1 - Procédé pour améliorer l'adhérence de revêtements par pulvérisation thermique, composés de métaux, oxydes métalliques et matériaux durs - Google Patents
Procédé pour améliorer l'adhérence de revêtements par pulvérisation thermique, composés de métaux, oxydes métalliques et matériaux durs Download PDFInfo
- Publication number
- EP0677592A1 EP0677592A1 EP95105427A EP95105427A EP0677592A1 EP 0677592 A1 EP0677592 A1 EP 0677592A1 EP 95105427 A EP95105427 A EP 95105427A EP 95105427 A EP95105427 A EP 95105427A EP 0677592 A1 EP0677592 A1 EP 0677592A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metals
- metal oxides
- hard materials
- enhancing
- spraying
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 17
- 239000002184 metal Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 title claims abstract description 11
- 150000002739 metals Chemical class 0.000 title claims abstract description 10
- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 5
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 5
- 230000002708 enhancing effect Effects 0.000 title 1
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 6
- 239000011701 zinc Substances 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 21
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 229920005749 polyurethane resin Polymers 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000013008 moisture curing Methods 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 17
- 229920003023 plastic Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 239000007921 spray Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 238000010285 flame spraying Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004972 Polyurethane varnish Substances 0.000 description 1
- 229920000180 alkyd Polymers 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
- 230000001680 brushing effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 150000003673 urethanes Chemical class 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
Definitions
- the present invention relates to a method for improving the adhesive strength of thermal spray coatings made from metals, metal oxides and hard materials, in particular from zinc, aluminum and their alloys.
- Thermal spray coatings play an important role in the surface finishing of metals, but also of plastics, concrete, cardboard, etc. Among other things, they improve the temperature resistance, wear behavior and electrical conductivity of the substrate materials.
- EP-US 0 451 512 describes a method for coating blades of a rotating, thermal machine, a special protective layer being applied to the blades in the high-speed flame spraying method.
- This layer can then be given a top layer of polyurethane reaction lacquer on a plastic basis.
- the surface roughness should be reduced.
- Two-component paints are therefore preferably used; see. Column 5, line 52 to column 6, line 6. It is about reducing the surface roughness and not about the adhesive strength of the layer applied in the high-speed flame spraying process.
- DE-PS 38 25 200 describes a method for coating plastic parts, in which the metal layer sprayed onto the roughened plastic surface is impregnated with a plastic.
- this plastic can be a low-viscosity polyurethane system. This measure guarantees perfect adhesion of the sprayed metal to the plastic, produces a high specific conductivity and guarantees reliable protection against external mechanical attacks; see. Column 1, lines 61 to 65.
- DE-PS 38 25 200 teaches that the transfer of flame spraying from metals to metals to the coating of plastics with metals leads to considerable difficulties; see. Column 1, lines 41 to 46.
- Thermal spraying of, for example, zinc, aluminum and their alloys, for example with magnesium is often the only way of protecting against corrosion by metal coatings under construction site conditions, since other processes such as hot-dip galvanizing and galvanizing are hardly possible on site.
- the production of thermal spray coatings on metals usually requires the following high-quality technology steps: degreasing, blasting, spraying and generally post-treatment.
- the purity and roughness of the surface of the substrate are of particular importance. It is usually required that a standard degree of purity Sa 3 according to DIN 55928, part 4 is achieved and that the average roughness R z is at least 25 ⁇ m. A certain sharpness of the profile is often necessary.
- spraying methods for example flame spraying, arc spraying and plasma spraying, since these different methods generate different temperatures that are necessary for the melting of the spraying material.
- Optimally produced layers have adhesive strengths of 20 to 50 MPa.
- the spray layers are more or less dense depending on the thickness and type of spray. To ensure adequate protection against corrosion, they usually have densities of 100 to 300 ⁇ m in thickness.
- one-component, moisture-curing polyurethane paints have only been used to treat heavily rusted or corroded steel substrates, whereby the residual moisture in the substrate is obviously bound and rust residues are solidified on the steel surface.
- These one-component polyurethane coatings are generally used as low-viscosity solutions in organic solvents, which are able to detect crevices, overlaps and structured substrates with good creeping ability.
- a one-component, moisture-curing polyurethane varnish is offered, for example, by Steelpaint GmbH, Kitzingen.
- the adhesive strength increases by the treatment according to the invention in the case of sprayed zinc and sprayed aluminum layers by approximately a factor of 3. In the case of ceramic layers, for example made of aluminum oxide, the adhesive strength increases to approximately 20 to 25 MPa.
- a degreased workpiece made of steel is prepared by means of compressed air jets up to the degree of cleaning Sa 3 and an average roughness depth R z of 45 ⁇ m. Subsequently, the workpiece prepared in this way is cleaned of any adhering blasting impurities as much as possible using compressed air and provided with a 150 ⁇ m thick spray coating made of zinc.
- the adhesive strength measurements carried out by forehead deduction result in values between 5 and 7 MPa.
- the spray metal layer is then thinly coated with a normal, commercially available, low-viscosity 1-component PU coating material by brush application so that no measurable layer build-up takes place. After the coating has hardened, the adhesive strength of the sprayed metal layer, measured by the same method, is 15 to 20 MPa.
- a degreased steel workpiece is prepared using compressed air jets up to a cleaning level of 2.5 and an average roughness depth R z of 25 ⁇ m. Then a 100 ⁇ m thick ceramic Al2O3 layer is applied to the not cleaned surface by means of powder flame spraying. The adhesive strength measurements carried out result in 12 MPa. The ceramic spray coating is then thinly coated with a normal, commercially available 1-component PU coating material using compressed air spraying. After the coating has hardened, the adhesive strength of the spray ceramic layer is more than 25 MPa.
- a particular advantage of the method according to the invention is that the adhesive strength of thermal spray coatings is increased reliably and significantly by a simple aftertreatment, so that the service life of the other customary coating systems applied thereon is also significantly increased.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4412795 | 1994-04-14 | ||
DE4412795 | 1994-04-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0677592A1 true EP0677592A1 (fr) | 1995-10-18 |
EP0677592B1 EP0677592B1 (fr) | 1998-12-30 |
Family
ID=6515339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95105427A Expired - Lifetime EP0677592B1 (fr) | 1994-04-14 | 1995-04-11 | Procédé pour améliorer l'adhérence de revêtements par pulvérisation thermique, composés de métaux, oxydes métalliques et matériaux durs |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0677592B1 (fr) |
AT (1) | ATE175246T1 (fr) |
DE (1) | DE59504660D1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0853135A1 (fr) * | 1996-05-24 | 1998-07-15 | Nippon Steel Hardfacing Co., Ltd. | Procede pour renforcer un revetement pulverise |
DE19748105C1 (de) * | 1997-10-31 | 1998-10-29 | Grillo Werke Ag | Verfahren zur Verbesserung der Korrosionsbeständigkeit von Stahlbeton |
CN113005796A (zh) * | 2021-03-01 | 2021-06-22 | 江苏卓尔诺光电科技有限公司 | 一种耐腐蚀海工光缆用镀锌钢绞线及其制备工艺 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1115121A (fr) * | 1954-11-26 | 1956-04-19 | Schneider Werke G M B H | Procédé de revêtement d'objets en métaux ferreux et objets obtenus par ce procédé |
FR1355378A (fr) * | 1962-05-07 | 1964-03-13 | Metallurg Ges Fuer Metallurg P | Procédé pour couvrir des objets d'une couche de matière plastique |
DE2121167A1 (de) * | 1970-04-29 | 1971-11-11 | Ici Ltd | Metallisierte Filme und Verfahren zu deren Herstellung |
JPS5440885A (en) * | 1977-09-07 | 1979-03-31 | Iwasaki Electric Co Ltd | Laminate with metal base and its making method |
JPS57171472A (en) * | 1981-04-16 | 1982-10-22 | Sumitomo Metal Ind Ltd | Corrosion-inhibition of steel material to be used under atmosphere in contact with strong alkali of concrete |
EP0125582A2 (fr) * | 1983-05-11 | 1984-11-21 | Henkel Kommanditgesellschaft auf Aktien | Utilisation d'une colle expansive de polyuréthane pour la connexion de matériaux isolants avec des parties de bâtiments |
EP0143360A2 (fr) * | 1983-11-02 | 1985-06-05 | Kleinert, Viktor | Masse de revêtement pour l'acier et le fer, son utilisation et procédé d'obtention d'un revêtement protecteur |
DE3531892A1 (de) * | 1984-09-07 | 1986-03-20 | Nippon Steel Corp., Tokio/Tokyo | Stahlgegenstand mit einer antikorrosiven hochleistungsbeschichtung |
JPS62136276A (ja) * | 1985-12-09 | 1987-06-19 | Toho Kasei Kk | 定着用ヒ−トロ−ルの加工方法 |
EP0351728A2 (fr) * | 1988-07-21 | 1990-01-24 | Teroson GmbH | Procédé de fabrication d'un toron de matière d'étanchement ou d'adhésif. |
DE3825200C1 (en) * | 1988-07-25 | 1990-02-01 | Aeg Isolier- Und Kunststoff Gmbh, 3500 Kassel, De | Process for coating plastic components with metals |
JPH03249187A (ja) * | 1990-02-27 | 1991-11-07 | Hino Motors Ltd | 自動車用外装部品の光輝処理方法 |
-
1995
- 1995-04-11 DE DE59504660T patent/DE59504660D1/de not_active Expired - Fee Related
- 1995-04-11 AT AT95105427T patent/ATE175246T1/de not_active IP Right Cessation
- 1995-04-11 EP EP95105427A patent/EP0677592B1/fr not_active Expired - Lifetime
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1115121A (fr) * | 1954-11-26 | 1956-04-19 | Schneider Werke G M B H | Procédé de revêtement d'objets en métaux ferreux et objets obtenus par ce procédé |
FR1355378A (fr) * | 1962-05-07 | 1964-03-13 | Metallurg Ges Fuer Metallurg P | Procédé pour couvrir des objets d'une couche de matière plastique |
DE2121167A1 (de) * | 1970-04-29 | 1971-11-11 | Ici Ltd | Metallisierte Filme und Verfahren zu deren Herstellung |
JPS5440885A (en) * | 1977-09-07 | 1979-03-31 | Iwasaki Electric Co Ltd | Laminate with metal base and its making method |
JPS57171472A (en) * | 1981-04-16 | 1982-10-22 | Sumitomo Metal Ind Ltd | Corrosion-inhibition of steel material to be used under atmosphere in contact with strong alkali of concrete |
EP0125582A2 (fr) * | 1983-05-11 | 1984-11-21 | Henkel Kommanditgesellschaft auf Aktien | Utilisation d'une colle expansive de polyuréthane pour la connexion de matériaux isolants avec des parties de bâtiments |
EP0143360A2 (fr) * | 1983-11-02 | 1985-06-05 | Kleinert, Viktor | Masse de revêtement pour l'acier et le fer, son utilisation et procédé d'obtention d'un revêtement protecteur |
DE3531892A1 (de) * | 1984-09-07 | 1986-03-20 | Nippon Steel Corp., Tokio/Tokyo | Stahlgegenstand mit einer antikorrosiven hochleistungsbeschichtung |
JPS62136276A (ja) * | 1985-12-09 | 1987-06-19 | Toho Kasei Kk | 定着用ヒ−トロ−ルの加工方法 |
EP0351728A2 (fr) * | 1988-07-21 | 1990-01-24 | Teroson GmbH | Procédé de fabrication d'un toron de matière d'étanchement ou d'adhésif. |
DE3825200C1 (en) * | 1988-07-25 | 1990-02-01 | Aeg Isolier- Und Kunststoff Gmbh, 3500 Kassel, De | Process for coating plastic components with metals |
JPH03249187A (ja) * | 1990-02-27 | 1991-11-07 | Hino Motors Ltd | 自動車用外装部品の光輝処理方法 |
Non-Patent Citations (5)
Title |
---|
DATABASE WPI Derwent World Patents Index; AN 79-35904b c19 * |
JURGEN FOCK: "feuchtigkeitshartende polyurethanklebstoffe", ADHASION, vol. 32, no. 10, MUNCHEN,DE, pages 13 - 19, XP000023533 * |
PATENT ABSTRACTS OF JAPAN vol. 11, no. 365 (C - 460) 27 November 1987 (1987-11-27) * |
PATENT ABSTRACTS OF JAPAN vol. 16, no. 43 (C - 0907) 4 February 1992 (1992-02-04) * |
PATENT ABSTRACTS OF JAPAN vol. 7, no. 14 (C - 146) 20 January 1983 (1983-01-20) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0853135A1 (fr) * | 1996-05-24 | 1998-07-15 | Nippon Steel Hardfacing Co., Ltd. | Procede pour renforcer un revetement pulverise |
EP0853135A4 (fr) * | 1996-05-24 | 2000-10-25 | Nippon Steel Hardfacing | Procede pour renforcer un revetement pulverise |
DE19748105C1 (de) * | 1997-10-31 | 1998-10-29 | Grillo Werke Ag | Verfahren zur Verbesserung der Korrosionsbeständigkeit von Stahlbeton |
WO1999023282A1 (fr) * | 1997-10-31 | 1999-05-14 | Grillo-Werke Ag | Procede permettant d'augmenter la resistance a la corrosion du beton arme |
US6224943B1 (en) | 1997-10-31 | 2001-05-01 | Grillo-Werke Ag | Method for improving the corrosion resistance of reinforced concrete |
CN113005796A (zh) * | 2021-03-01 | 2021-06-22 | 江苏卓尔诺光电科技有限公司 | 一种耐腐蚀海工光缆用镀锌钢绞线及其制备工艺 |
Also Published As
Publication number | Publication date |
---|---|
DE59504660D1 (de) | 1999-02-11 |
EP0677592B1 (fr) | 1998-12-30 |
ATE175246T1 (de) | 1999-01-15 |
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