EP0287023A2 - Process for producing a sprayed surface with a particular roughness, and its use - Google Patents

Process for producing a sprayed surface with a particular roughness, and its use Download PDF

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Publication number
EP0287023A2
EP0287023A2 EP88105778A EP88105778A EP0287023A2 EP 0287023 A2 EP0287023 A2 EP 0287023A2 EP 88105778 A EP88105778 A EP 88105778A EP 88105778 A EP88105778 A EP 88105778A EP 0287023 A2 EP0287023 A2 EP 0287023A2
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EP
European Patent Office
Prior art keywords
hard material
matrix
microns
sprayed
hard
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Withdrawn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
EP88105778A
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German (de)
French (fr)
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EP0287023A3 (en
Inventor
Reinhard Polak
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.)
ECG Immobilier SA
Original Assignee
Castolin SA
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Filing date
Publication date
Application filed by Castolin SA filed Critical Castolin SA
Publication of EP0287023A2 publication Critical patent/EP0287023A2/en
Publication of EP0287023A3 publication Critical patent/EP0287023A3/en
Withdrawn legal-status Critical Current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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material

Definitions

  • the invention relates to a method for producing a sprayed surface with a defined roughness on a workpiece and the use of the method or the surface produced thereby.
  • thermally sprayed layers After spraying, thermally sprayed layers have a rough surface, the degree of roughness of which lies within a relatively large fluctuation range.
  • the roughness results from the splintering of molten particles when they hit the workpiece surface to be coated. This sputtering can be stronger or weaker depending on the temperature of the particle, which means that very different roughness can occur on a single surface. If such surfaces are used in areas where, on the one hand, a special grip of the surface is required and, on the other hand, this grip must not damage the product, the use of the layers described at the outset is not possible due to the roughness fluctuations mentioned. In addition, depending on the alloy used, the service life of such surfaces is too short for many applications. A remedy was achieved here with moderate success by grinding the sprayed surfaces in a second operation and thus achieving a defined roughness within certain limits.
  • the inventor has set himself the goal of improving the method of the type mentioned at the outset and including a surface layer to offer clearly defined roughness in relatively easy handling.
  • the solution to this problem is that a powdery material made of a mixture of a matrix based on Ni, Co and / or Fe-based alloy and hard materials and a grain size distribution of these hard materials with a maximum proportion between 25 to 150 microns, the sprayed - but unsintered layer has a surface roughness in the range Ra 10 to 100 ⁇ m with a defined roughness of Ra.x ⁇ 20 ⁇ m and x is a number from 10 to 100 ⁇ m.
  • the sprayed-on layer has a defined surface roughness of Ra.x ⁇ 10 ⁇ m.
  • the hard materials have a melting point of about 1200 ° C and higher.
  • the coating of surfaces with a defined roughness of x ⁇ 20 ⁇ m, preferably ⁇ 10 ⁇ m - where x is the desired surface roughness in ⁇ m - in the range from 10 to 100 ⁇ m leads to long service lives if a mixed powder is used as the powdery material uses, which consists of two or more components that have a larger melting interval and hard materials. Powdery materials based on an alloy of Ni, Co and / or iron are best suited for such a matrix. According to the invention, the melting point interval of these alloys should be between 900 and 1400 ° C., preferably between 1000 and 1300 ° C., and should have an interval of more than 50 ° C.
  • Hard material particles such as carbides, borides, nitrides, silicides and oxides are used as carriers for the roughness.
  • the mixing ratio of the two components matrix / hard material should be between 20 and 80% by weight, preferably 30 to 60% by weight, for the hard material portion.
  • the surface roughness is influenced via the grain distribution of the hard material portion, i. H. the maximum proportion of the grain distribution is kept very narrow, while the total distribution is in the ranges from 37 to 125 ⁇ m or 45 to 105 ⁇ m or 45 to 90 ⁇ m or 37 to 75 ⁇ m.
  • the hard material particles should be produced by spray drying, agglomerating with and without sintering or by melting with subsequent breaking and grinding. Later coating of the hard materials with Ni, Co and / or Fe has proven to be advantageous.
  • the proportion should be below 40% by weight, preferably below 20% by weight.

Abstract

The production of such a sprayed surface on a workpiece is to be improved and a surface layer with a clearly defined roughness is to be provided, with relatively simple handling. For this purpose, a pulverulent material consisting of a mixture of a matrix of Ni, Co and/or Fe base alloy and sintered materials having a grain size distribution of the sintered materials with a maximum fraction between 25 and 150 mu m is sprayed on, the sprayed unsintered layer having a surface roughness in the range of Ra from 10 to 100 mu m with a defined roughness of Ra x x +/- 20 mu m, x being a number from 10 to 100 mu m. The process of the invention is intended to be used for producing the surface of transport rollers or gripper fingers for paper or cardboard manufacture.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen ei­ner gespritzten Oberfläche mit definierter Rauhigkeit auf einem Werkstück sowie die Verwendung des Verfahrens bzw. der dadurch erzeugten Oberfläche.The invention relates to a method for producing a sprayed surface with a defined roughness on a workpiece and the use of the method or the surface produced thereby.

Thermisch gespritzte Schichten weisen nach dem Spritzen eine rauhe Oberfläche auf, deren Rauhigkeitsmaß inner­halb eines verhältnismäßig großen Schwankungsbereiches liegt. Die Rauhigkeiten ergeben sich durch das Zerspratzen schmelzflüssiger Partikel beim Auftreffen auf die zu be­schichtende Werkstückoberfläche. Dieses Zerspratzen kann je nach Temperatur des Partikels stärker oder schwächer sein, wodurch sehr unterschiedliche Rauhigkeiten auf einer einzeigen Oberfläche auftreten können. Bei Einsatz solcher Oberflächen in Bereichen, in denen einerseits eine beson­dere Griffigkeit der Oberfläche erforderlich ist, ander­seits diese Griffigkeit nicht zu einer Beschädigung des Produktes führen darf, ist die Verwendung der eingangs beschriebenen Schichten durch die genannten Rauhigkeits­schwankungen nicht möglich. Zudem sind die Standzeiten sol­cher Oberflächen je nach verwendeter Legierung für viele Anwendungszwecke zu gering. Eine Abhilfe wurde hier mit mäßigem Erfolg dadurch erreicht, daß man die gespritzten Oberflächen in einem zweiten Arbeitsgang schleift und da­mit in gewissen Grenzen zu einer definierten Rauhigkeit gelangt.After spraying, thermally sprayed layers have a rough surface, the degree of roughness of which lies within a relatively large fluctuation range. The roughness results from the splintering of molten particles when they hit the workpiece surface to be coated. This sputtering can be stronger or weaker depending on the temperature of the particle, which means that very different roughness can occur on a single surface. If such surfaces are used in areas where, on the one hand, a special grip of the surface is required and, on the other hand, this grip must not damage the product, the use of the layers described at the outset is not possible due to the roughness fluctuations mentioned. In addition, depending on the alloy used, the service life of such surfaces is too short for many applications. A remedy was achieved here with moderate success by grinding the sprayed surfaces in a second operation and thus achieving a defined roughness within certain limits.

Angesichts dieser Schwierigkeiten hat sich der Erfinder das Ziel gesetzt, das Verfahren der eingangs erwähnten Art zu verbessern und eine Oberflächenschicht mit ein­ deutig definierter Rauhigkeit in verhältnismäßig ein­facher Handhabung anzubieten.In view of these difficulties, the inventor has set himself the goal of improving the method of the type mentioned at the outset and including a surface layer to offer clearly defined roughness in relatively easy handling.

Zur Lösung dieser Aufgabe führt, daß ein pulverförmiger Werkstoff aus einer Mischung von einer Matrix auf Ni,Co und/oder Fe-Basislegierung und Hartstoffen sowie einer Kornverteilung dieser Hartstoffe mit maximalem Anteil zwischen 25 bis 150 µm aufgespritzt wird, wobei die ge­spritzte -- aber ungesinterte -- Schicht eine Oberflächen­rauhigkeit im Bereich Ra 10 bis 100 µm mit einer definier­ten Rauhigkeit von Ra.x± 20 µm aufweist und x eine Zahl von 10 bis 100 µm ist.The solution to this problem is that a powdery material made of a mixture of a matrix based on Ni, Co and / or Fe-based alloy and hard materials and a grain size distribution of these hard materials with a maximum proportion between 25 to 150 microns, the sprayed - but unsintered layer has a surface roughness in the range Ra 10 to 100 µm with a defined roughness of Ra.x ± 20 µm and x is a number from 10 to 100 µm.

Zudem hat es sich als günstig erwiesen, daß die aufge­spritzte Schicht eine definierte Oberflächenrauhigkeit von Ra.x± 10 µm aufweist. Die Hartstoffe weisen dabei im übrigen einen Schmelzpunkt von etwa 1200° C und höher auf.In addition, it has proven to be advantageous that the sprayed-on layer has a defined surface roughness of Ra.x ± 10 µm. The hard materials have a melting point of about 1200 ° C and higher.

Weitere Einzelheiten der Schicht sind den Unteransprüchen zu entnehmen.Further details of the layer can be found in the subclaims.

Das Beschichten von Oberflächen mit einer definierten Rauhigkeit von x± 20 µm, vorzugsweise ± 10 µm -- wobei x die gewünschte Oberflächenrauhigkeit in µm ist -- im Bereich von 10 bis 100 µm führt zu großen Standzeiten, wenn man als pulverförmigen Werkstoff ein gemischtes Pul­ver einsetzt, welches aus zwei oder mehreren Komponenten besteht, die ein größeres Schmelzintervall sowie Hart­stoffe aufweisen. Am besten eignen sich für eine solche Matrix pulverförmige Werkstoffe auf einer Legierungsbasis von Ni,Co und/oder Eisen. Das Schmelzpunktintervall dieser Legierungen soll erfindungsgemäß zwischen 900 und 1400° C liegen, vorzugsweise zwischen 1000 und 1300°C, und ein Intervall von mehr als 50°C aufweisen.The coating of surfaces with a defined roughness of x ± 20 µm, preferably ± 10 µm - where x is the desired surface roughness in µm - in the range from 10 to 100 µm leads to long service lives if a mixed powder is used as the powdery material uses, which consists of two or more components that have a larger melting interval and hard materials. Powdery materials based on an alloy of Ni, Co and / or iron are best suited for such a matrix. According to the invention, the melting point interval of these alloys should be between 900 and 1400 ° C., preferably between 1000 and 1300 ° C., and should have an interval of more than 50 ° C.

Als Träger für die Rauhigkeit werden Hartstoffpartikel, wie Karbide, Boride, Nitride, Silicide und Oxyde ver­wendet. Das Mischungsverhältnis der beiden Komponenten Matrix/Hartstoff sollte zwischen 20 und 80 Gew.-%, be­vorzugt 30 bis 60 Gew.-%, für den Hartstoffanteil liegen. Die Beeinflussung der Oberflächenrauhigkeit erfolgt über die Kornverteilung des Hartstoffanteils, d. h. der maxi­male Anteil der Kornverteilung wird sehr eng gehalten, während die Gesamtverteilung in den Bereichen von 37 bis 125 µm bzw. 45 bis 105 µm bzw. 45 bis 90 µm bzw. 37 bis 75 µm liegt.Hard material particles such as carbides, borides, nitrides, silicides and oxides are used as carriers for the roughness. The mixing ratio of the two components matrix / hard material should be between 20 and 80% by weight, preferably 30 to 60% by weight, for the hard material portion. The surface roughness is influenced via the grain distribution of the hard material portion, i. H. the maximum proportion of the grain distribution is kept very narrow, while the total distribution is in the ranges from 37 to 125 µm or 45 to 105 µm or 45 to 90 µm or 37 to 75 µm.

Die Hartstoffpartikel sollten durch Sprühtrocknen, Agglo­merieren mit und ohne Sintern oder durch Schmelzen mit nachträglichem Brechen und Mahlen hergestellt werden. Ein späteres Überziehen der Hartstoffe mit Ni,Co und/oder Fe hat sich als vorteilhaft herausgestellt. Der Anteil sollte unter 40 Gew.-% liegen, bevorzugt unter 20 Gew.-%.The hard material particles should be produced by spray drying, agglomerating with and without sintering or by melting with subsequent breaking and grinding. Later coating of the hard materials with Ni, Co and / or Fe has proven to be advantageous. The proportion should be below 40% by weight, preferably below 20% by weight.

Die durch das beschriebene Verfahren entstehenden Ober­flächen können mit besonderen Vorteilen in der Papier­industrie eingesetzt werden, wo Transportrollen oder Grei­ferfinger dünne Papierbahnen oder Kartonbögen aufnehmen sollen, ohne daß es zu den geringsten Beschädigungen des transportierten Gutes kommt.The surfaces created by the process described can be used with particular advantages in the paper industry, where transport rollers or gripper fingers are to take up thin paper webs or cardboard sheets without causing the slightest damage to the transported goods.

Nicht nur bei den bevorzugten Verwendungsgebieten, son­dern ganz allgemein hat es sich als besonderer Vorteil des erfindungsgemäßen Verfahrens erwiesen, daß während des Herstellungsvorganges eine bestimmte Oberfläche ent­steht, die einer Nachbehandlung nicht mehr bedarf.Not only in the preferred fields of use, but very generally, it has proven to be a particular advantage of the method according to the invention that a certain surface is created during the manufacturing process, which no longer requires post-treatment.

Claims (18)

1. Verfahren zum Herstellen einer gespritzten Ober­fläche mit definierter Rauhigkeit auf einem Werk­stück,
dadurch gekennzeichnet,
daß ein pulverförmiger Werkstoff aus einer Mi­schung von einer Matrix auf Ni, Co und/oder Fe-Ba­sislegierung und Hartstoffen sowie einer Kornver­teilung der Hartstoffe mit maximalem Anteil zwi­schen 25 bis 150 µm aufgespritzt wird, wobei die gespritzte, ungesinterte Schicht eine Oberflächen­rauhigkeit im Bereich von Ra 10 bis 100 µm mit ei­ner definierten Rauhigkeit von Ra.x± 20 µm auf­weist und x eine Zahl von 10 bis 100 µm ist.1. Method for producing a sprayed surface with a defined roughness on a workpiece,
characterized,
that a powdery material from a mixture of a matrix based on Ni, Co and / or Fe-based alloy and hard materials and a grain distribution of hard materials is sprayed with a maximum proportion between 25 to 150 microns, the sprayed, unsintered layer having a surface roughness in the range of Ra 10 to 100 µm with a defined roughness of Ra.x ± 20 µm and x is a number from 10 to 100 µm. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die aufgespritzte Schicht eine definierte Oberflächenrauhigkeit von Ra.x± 10 µm aufweist, und/oder daß der Hartstoffanteil der Mischung zwi­schen 20 bis 80 Gew.-% liegt, wobei gegebenenfalls ein Hartstoffanteil der Mischung zwischen 30 bis 60 Gew.-% eingesetzt wird.2. The method according to claim 1, characterized in that the sprayed-on layer has a defined surface roughness of Ra.x ± 10 microns, and / or that the hard material content of the mixture is between 20 to 80 wt .-%, wherein optionally a hard material content of the mixture between 30 to 60 wt .-% is used. 3. Verfahren nach Anspruch 1 oder 2, gekennzeichnet durch ein Karbid als Hartstoffkomponente, insbe­sondere ein Karbid auf Wolframbasis, bevorzugt ein Wolframschmelzkarbid bzw. ein Karbid auf Wolfram­karbid-Kobalt mit einem Kobaltgehalt unter 25 % Co.3. The method according to claim 1 or 2, characterized by a carbide as a hard component, in particular a carbide based on tungsten, preferably a tungsten carbide or a carbide based on tungsten carbide cobalt with a cobalt content of less than 25% Co. 4. Verfahren nach Anspruch 1 oder 2, gekennzeichnet durch ein Borid oder ein Silicid als Hartstoff­komponente.4. The method according to claim 1 or 2, characterized by a boride or a silicide as the hard component. 5. Verfahren nach Anspruch 1 oder 2, gekennzeichnet durch ein Nitrid oder ein Oxyd als Hartstoffkom­ponente.5. The method according to claim 1 or 2, characterized by a nitride or an oxide as a hard component. 6. Verfahren nach wenigstens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Hartstoff­pulver durch Sprühtrocknen oder durch Agglomerien und Brechen oder Mahlen hergestellt wird, wobei gegebenenfalls das Hartstoffpulver gesintert wird.6. The method according to at least one of claims 1 to 5, characterized in that the hard material powder is produced by spray drying or by agglomerations and crushing or grinding, the hard material powder being optionally sintered. 7. Verfahren nach wenigstens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Hartstoff­pulver vor dem Mischen mit der Matrix mit Ni, Co und/oder Fe überzogen wird, wobei gegebenenfalls der Nickelanteil auf den überzogenen Hartstoffker­nen unter 40 Gew.-%, bevorzugt unter 20 Gew.-% liegt.7. The method according to at least one of claims 1 to 6, characterized in that the hard material powder is coated with Ni, Co and / or Fe before mixing with the matrix, the nickel content on the coated hard material cores optionally being less than 40% by weight, is preferably below 20% by weight. 8. Verfahren nach wenigstens einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Kornform des Hartstoffpartikels kugelförmig oder vieleckig ist.8. The method according to at least one of claims 1 to 7, characterized in that the grain shape of the hard material particle is spherical or polygonal. 9. Verfahren nach wenigstens einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Maximum der Kornverteilung des Hartstoffanteils zwischen 37 and 125 µm, bevorzugt zwischen 45 und 105 µm liegt.9. The method according to at least one of claims 1 to 8, characterized in that the maximum of the grain distribution of the hard material portion is between 37 and 125 microns, preferably between 45 and 105 microns. 10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß das Maximum der Kornverteilung des Hartstoff­anteils zwischen 45 und 99 µm, inbesondere zwi­schen 37 und 75 µm, liegt.10. The method according to claim 9, characterized in that the maximum of the grain distribution of the hard material portion between 45 and 99 microns, in particular between 37 and 75 microns. 11. Verfahren nach wenigstens einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß als Matrix ei­ne Nickel-Basislegierung, insbesondere eine Nickel-Chrom-Basislegierung, eingesetzt wird, die gegebenenfalls Eisen enthält.11. The method according to at least one of claims 1 to 10, characterized in that a nickel-based alloy, in particular a nickel-chromium-based alloy, which optionally contains iron, is used as the matrix. 12. Verfahren nach wenigstens einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß als Matrix eine Nickel-Chrom-Bor-Silicium-Legierung verwendet wird.12. The method according to at least one of claims 1 to 10, characterized in that a nickel-chromium-boron-silicon alloy is used as the matrix. 13. Verfahren nach wenigstens einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß als Matrix eine Kobalt-Basis-Legierung verwendet wird.13. The method according to at least one of claims 1 to 10, characterized in that a cobalt-base alloy is used as the matrix. 14. Verfahren nach wenigstens einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß als Matrix ei­ne Eisen-Basis-Legierung verwendet wird.14. The method according to at least one of claims 1 to 10, characterized in that an iron-based alloy is used as the matrix. 15. Verfahren nach wenigstens einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Kornver­teilung der Matrixlegierung zwischen 150 und 5 µm liegt.15. The method according to at least one of claims 1 to 14, characterized in that the grain distribution of the matrix alloy is between 150 and 5 microns. 16. Verfahren nach wenigstens einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Schnicht mit einem autogenen Flammspritzgerät oder durch Plasma-Flammspritzen aufgetragen wird.16. The method according to at least one of claims 1 to 15, characterized in that the Schnicht is applied with an autogenous flame spraying device or by plasma flame spraying. 17. Verwendung des Verfahrens nach wenigstens einem der Ansprüche 1 bis 16 für die Herstellung der Oberfläche von Transportrollen für die Papierer­zeugung.17. Use of the method according to at least one of claims 1 to 16 for the production of the surface of transport rollers for paper production. 18. Verwendung des Verfahrens nach wenigstens einem der Ansprüche 1 bis 16 für die Herstellung von Greiferfingern für den Transport von Papier- oder Kartonbogen.18. Use of the method according to at least one of claims 1 to 16 for the production of gripper fingers for the transport of paper or cardboard sheets.
EP88105778A 1987-04-14 1988-04-12 Process for producing a sprayed surface with a particular roughness, and its use Withdrawn EP0287023A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3712684 1987-04-14
DE19873712684 DE3712684A1 (en) 1987-04-14 1987-04-14 METHOD FOR PRODUCING A SPRAYED SURFACE WITH DEFINED ROUGHNESS, AND USE THEREOF

Publications (2)

Publication Number Publication Date
EP0287023A2 true EP0287023A2 (en) 1988-10-19
EP0287023A3 EP0287023A3 (en) 1990-06-20

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EP88105778A Withdrawn EP0287023A3 (en) 1987-04-14 1988-04-12 Process for producing a sprayed surface with a particular roughness, and its use

Country Status (7)

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EP (1) EP0287023A3 (en)
CN (1) CN88102725A (en)
BR (1) BR8801864A (en)
CA (1) CA1315613C (en)
DE (1) DE3712684A1 (en)
FI (1) FI86748B (en)
IN (1) IN169734B (en)

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EP0383466A1 (en) * 1989-02-16 1990-08-22 Valmet-Tampella Inc. A Yankee cylinder and a method for coating a Yankee cylinder
EP0425464A1 (en) * 1989-10-27 1991-05-02 Valmet Paper Machinery Inc. Roll for use in the production of paper and method for the manufacture of the roll
EP0493326A2 (en) * 1990-12-26 1992-07-01 Eltech Systems Corporation Substrate of improved melt sprayed surface morphology
EP0631961A1 (en) * 1993-06-19 1995-01-04 Hoechst Aktiengesellschaft Yarn guiding component with an improved outer surface
WO1997017478A1 (en) * 1995-11-08 1997-05-15 Fissler Gmbh Process for producing a non-stick coating and objects provided with such a coating
WO2000009774A1 (en) * 1998-08-12 2000-02-24 Wolfgang Wiesener Surface coating, granular mixture for feeding to a plasma coating, and a surface coating method
CN107130204A (en) * 2017-05-22 2017-09-05 河南中原吉凯恩气缸套有限公司 A kind of wear-resistant coating cylinder jacket and its preparation technology

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DE4238508C2 (en) * 1992-11-14 1995-07-20 Gf Flamm Metallspritz Gmbh Process for applying a fine, rough coating to the surface of a roller
US20050202945A1 (en) * 2004-03-11 2005-09-15 Leung Chi K. Thermal spray grit roller
CN110983232B (en) * 2019-11-06 2022-11-01 苏州合志杰新材料技术有限公司 Method for preparing wear-resistant anti-sticking coating by using special spraying power

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383466A1 (en) * 1989-02-16 1990-08-22 Valmet-Tampella Inc. A Yankee cylinder and a method for coating a Yankee cylinder
EP0425464A1 (en) * 1989-10-27 1991-05-02 Valmet Paper Machinery Inc. Roll for use in the production of paper and method for the manufacture of the roll
EP0493326A2 (en) * 1990-12-26 1992-07-01 Eltech Systems Corporation Substrate of improved melt sprayed surface morphology
EP0493326A3 (en) * 1990-12-26 1993-03-17 Eltech Systems Corporation Substrate of improved melt sprayed surface morphology
AU643350B2 (en) * 1990-12-26 1993-11-11 Eltech Systems Corporation Substrate of improved plasma sprayed surface morphology
EP0631961A1 (en) * 1993-06-19 1995-01-04 Hoechst Aktiengesellschaft Yarn guiding component with an improved outer surface
US5528799A (en) * 1993-06-19 1996-06-25 Hoechst Aktiengesellschaft Thread-guiding component with improved surface
WO1997017478A1 (en) * 1995-11-08 1997-05-15 Fissler Gmbh Process for producing a non-stick coating and objects provided with such a coating
WO2000009774A1 (en) * 1998-08-12 2000-02-24 Wolfgang Wiesener Surface coating, granular mixture for feeding to a plasma coating, and a surface coating method
CN107130204A (en) * 2017-05-22 2017-09-05 河南中原吉凯恩气缸套有限公司 A kind of wear-resistant coating cylinder jacket and its preparation technology

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Publication number Publication date
CA1315613C (en) 1993-04-06
FI86748B (en) 1992-06-30
DE3712684C2 (en) 1991-06-06
CN88102725A (en) 1988-11-23
FI881474A (en) 1988-10-15
IN169734B (en) 1991-12-14
EP0287023A3 (en) 1990-06-20
FI881474A0 (en) 1988-03-29
DE3712684A1 (en) 1988-10-27
BR8801864A (en) 1988-11-22

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