SE523542C2 - Coating for rollers and plates as well as a method for applying said coating - Google Patents

Coating for rollers and plates as well as a method for applying said coating

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Publication number
SE523542C2
SE523542C2 SE0100310A SE0100310A SE523542C2 SE 523542 C2 SE523542 C2 SE 523542C2 SE 0100310 A SE0100310 A SE 0100310A SE 0100310 A SE0100310 A SE 0100310A SE 523542 C2 SE523542 C2 SE 523542C2
Authority
SE
Sweden
Prior art keywords
layer
layers
boron nitride
base layer
coating
Prior art date
Application number
SE0100310A
Other languages
Swedish (sv)
Other versions
SE0100310L (en
SE0100310D0 (en
Inventor
Steinar Stav
Original Assignee
Folla Tech As
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 Folla Tech As filed Critical Folla Tech As
Publication of SE0100310D0 publication Critical patent/SE0100310D0/en
Publication of SE0100310L publication Critical patent/SE0100310L/en
Publication of SE523542C2 publication Critical patent/SE523542C2/en

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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
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/129—Flame spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • 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
    • C23C28/04—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 of inorganic non-metallic material
    • C23C28/042—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 of inorganic non-metallic material including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides
    • 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
    • C23C28/04—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 of inorganic non-metallic material
    • C23C28/044—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 of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
    • 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
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with 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
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • 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
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/347—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with layers adapted for cutting tools or wear applications
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • 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
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • 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
    • C23C4/08—Metallic material containing only metal elements
    • 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
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/124—
    • C23C4/125—
    • C23C4/127—
    • 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
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/131—Wire arc spraying
    • 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
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/08—Pressure rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Laminated Bodies (AREA)

Description

W U 20 25 30 35 523 542 šïwp, n" ,,,, «««<«.« . . ,.. ... : "- zool-oe-xß P:\0921 Bergen vatennxoncor\v\oo3\1>-ss\1>o921oooa_oaosos_ny besk+pk+s§§ån.šaë'c¿vë_ä š . ': ' 1 3 - 5 f' I I 1 1 1 2 anordningar. För att ernå ett skikt med tillräckliga egen- skaper måste toppskikt, som framställes med detta för- farande, värmebehandlas vid temperaturer från cirka l50°C till cirka 390°C under en viss tid, som vanligtvis är från 30 minuter till 120 minuter i beroende av den använda typen av toppskiktsmaterial. WU 20 25 30 35 523 542 šïwp, n ",,,,« «« <«.«.., .. ...: "- zool-oe-xß P: \ 0921 Bergen vatennxoncor \ v \ oo3 \ 1 > -ss \ 1> o921oooa_oaosos_ny besk + pk + s§§ån.šaë'c¿vë_ä š. ':' 1 3 - 5 f 'I I 1 1 1 2 devices. In order to obtain a layer with sufficient properties, topcoats prepared by this process must be heat treated at temperatures from about 150 ° C to about 390 ° C for a certain time, which is usually from 30 minutes to 120 minutes depending on of the type of topsheet material used.

På valsar inom pappersindustrin, till exempel press- valsar, ledvalsar, limvalsar och torkcylindrar, är de tidi- gare beskrivna egenskaperna av största vikt för att kunna upprätthålla hög produktion och för att undgå yttre skador på pappersprodukterna.On rollers in the paper industry, for example press rollers, articulated rollers, glue rollers and drying cylinders, the previously described properties are of the utmost importance in order to maintain high production and to avoid external damage to the paper products.

Vid pressning av spån- och fiberplattor användes me- tallplattor för inmatning och mellanomlägg. Dessa plattor för att kunna upprätthålla hög produktion och hög kvalitet på kräver också egenskaper, så som tidigare nämnts, ytterytan.When pressing chipboard and fibreboard, metal plates were used for feeding and intermediate layers. These tiles in order to maintain high production and high quality also require properties, as previously mentioned, the outer surface.

Ej behandlade valsar och metallplattor medför ofta maskinstopp samt underhåll av de aktuella ytorna, något som innebär tidskrävande och kostbar bearbetning samt rengö- ring.Untreated rollers and metal plates often result in machine downtime and maintenance of the surfaces in question, which means time-consuming and expensive processing and cleaning.

Det är därför ett syfte med föreliggande uppfinning att åstadkomma ett kombinationsskikt med hjälp av ett en- kelt förfarande, som är hårt och slitstarkt, har låg frik- tionskoefficient, och som är vattenavvisande samt smuts- och dammavvisande. Toppskiktet enligt föreliggande uppfin- ning torde ej värmebehandlas efter påföring. Det är enbart cirka 40°C till cirka 60°C, för att uppnå de nödvändiga egenskaperna. Även om toppskiktet nödvändigt med svag värme, påföres vid låg temperatur, har skiktet hög värmebeständig- het utan att klibba eller mista sin hårdhet. Skiktet kan dessutom användas vid driftstemperaturer om upp till cirka 220°C.It is therefore an object of the present invention to provide a combination layer by means of a simple process which is hard and durable, has a low coefficient of friction, and which is water-repellent and dirt- and dust-repellent. The topsheet of the present invention should not be heat treated after application. It is only about 40 ° C to about 60 ° C, to achieve the necessary properties. Even if the top layer, with low heat, is applied at low temperature, the layer has high heat resistance without sticking or losing its hardness. The layer can also be used at operating temperatures of up to about 220 ° C.

En föredragen utföringsform av beläggningen enligt föreliggande uppfinning kännetecknas av ett kombinations- skikt som innefattar ett basskikt, vilket består av ett an- 10 U 20 25 30 35 523 542 zooi-os-la Pfloszx Bergen Pacen:xon:or\1>\oo3\P-s1:\x»~o9z1ooo3_o:o9o5_ny beslupmshhínitêåivbš i , 5 ' 'I ' i 3 tal termiskt besprutade mikroporösa och våtskeabsorberande metallager, samt ett toppskikt, vilket består av ett antal penetrerande och tätande lager av bornitrid.A preferred embodiment of the coating according to the present invention is characterized by a combination layer comprising a base layer, which consists of an annulus. Paco: xon: or \ 1> \ oo3 3 U 20 25 30 35 523 542 zooi-os-la P fl oszx \ P-s1: \ x »~ o9z1ooo3_o: o9o5_ny beslupmshhínitêåivbš i, 5 '' I 'i 3 tal thermally sprayed microporous and liquid-absorbent metal layers, and a top layer, which consists of a number of penetrating and sealing layers of boron nitride.

Föredragna alternativa utföringsformer kännetecknas av att basskiktet innefattar ett antal lager av hårt och korrosionsbeständigt material, såsom till exempel kromstål, rostfritt eller syrafast stål, krom- eller volframkarbid, krom- eller aluminiumoxid, eller brons, och att toppskiktet innefattar ett antal påförda lager av bornitridpulver löst i etanol. Beläggningens skikttjocklek är från cirka 0,01 mm till 10 mm, företrädesvis cirka 0,05 till 5 mm.Preferred alternative embodiments are characterized in that the base layer comprises a number of layers of hard and corrosion-resistant material, such as for example chromium steel, stainless or acid-resistant steel, chromium or tungsten carbide, chromium or alumina, or bronze, and that the top layer comprises a number of applied boron nitride powders. dissolved in ethanol. The layer thickness of the coating is from about 0.01 mm to 10 mm, preferably about 0.05 to 5 mm.

En föredragen utföringsform för att påföra belägg- ningen enligt föreliggande uppfinning kännetecknas av att ytan blästras för att uppnå en tillfredsställande ytråhet om cirka Ra 0,5 till 5,0, 4,0, att ytan uppvärmes till en temperatur om cirka 40°C företrädesvis cirka Ra 1,0 till till 60°C, företrädesvis cirka 50°C, varpå basskiktet fram- sprutas på ytan, att när önskad skikttjocklek uppnås hos basskiktet toppskiktet påföres vid en temperatur om cirka 30°C till 70°C, företrädesvis cirka 40°C till 60°C, och att toppskiktet påföres som ett antal lager med bornitridsus- pension.A preferred embodiment for applying the coating according to the present invention is characterized in that the surface is blasted to achieve a satisfactory surface roughness of about Ra 0.5 to 5.0, 4.0, that the surface is heated to a temperature of about 40 ° C preferably about Ra 1.0 to to 60 ° C, preferably about 50 ° C, whereupon the base layer is sprayed onto the surface, that when the desired layer thickness of the base layer is reached the top layer is applied at a temperature of about 30 ° C to 70 ° C, preferably about 40 ° C. ° C to 60 ° C, and that the top layer is applied as a number of layers with boron nitride suspension.

Föredragna alternativa utföringsformer av förfarandet kännetecknas av att toppskiktet påföres som bornitridpulver löst i etanol, varvid etanolen efter påföringen avdunstar ett ej klib- bigt och vattenavvisande skikt med låg friktion. Topp- och åstadkommer, i kombination med basskiktet, skiktet påföres med en sprutpistol, som utnyttjar kall eller varm tryckluft, eller genom pensling. Den första påföringen av bornitridsuspensionen penetrerad in i bas- skiktet, skiktets hårda partiklar för att åstadkomma en önskad egen- fästes i basskiktets mikroporer och samlas mellan skap av låg friktion. Efter en önskad torktid efter den första påföringen av bornitrid påföres ett nytt lager bor- nitridsuspension, som efter en ny önskad torktid ytbehand- 10 U 20 25 30 35 .523 al: .E -š n: -1- f-.f zooz-os-m c=\p\os21 sargen Pace n :wo - s21ooo3_o:o9os_ny beaxfipxmzanuyapp vs; ; 2.: . j. - :_ in: Z I I I I II Ü ' .' las med ett lämpligt polermedel. Ytterligare lager med bor- nitridsuspension päföres och ytbehandlas växelvis efter en önskad torktid till dess en jämn och slät yta erhålles.Preferred alternative embodiments of the process are characterized in that the top layer is applied as boron nitride powder dissolved in ethanol, the ethanol after application evaporating a non-sticky and water-repellent layer with low friction. Top and effect, in combination with the base layer, the layer is applied with a spray gun, which uses cold or hot compressed air, or by brushing. The first application of the boron nitride suspension penetrated into the base layer, the hard particles of the layer to achieve a desired self-adhesion in the micropores of the base layer and accumulate between cabinets of low friction. After a desired drying time after the first application of boron nitride, a new layer of boron nitride suspension is applied, which after a new desired drying time is surface treated .523 al: .E -š n: -1- f-.f zooz -os-m c = \ p \ os21 sargen Pace n: wo - s21ooo3_o: o9os_ny beax fi pxmzanuyapp vs; ; 2 .:. j. -: _ in: Z I I I I II Ü '.' with a suitable polish. Additional layers of boron nitride suspension are applied and surface treated alternately after a desired drying time until a smooth and even surface is obtained.

Uppfinningen skall nu närmare förklaras med hänvis- ning till bifogade ritning, pà vilken visas en del av en beläggning för en vals eller en platta enligt en föredragen utföringsform av föreliggande uppfinning.The invention will now be explained in more detail with reference to the accompanying drawing, in which a part of a coating for a roller or a plate according to a preferred embodiment of the present invention is shown.

Fig. 1 visar grundmaterialets 10 yta mot valsen eller plattan. Före páföring av basskiktet 20 ytbehandlas grundmaterialet 10 medelst blästring, såsom till exempel sandblästring, så att ytan i grundmaterialet uppnår en ytráhet med ett ràhetsvärde mellan cirka Ra 0,5 och 5,0, företrädesvis mellan cirka Ra 1,0 och 4,0. Ytbehandlingen utföres för att basskiktets 20 hållfasthet till grundmate- rialet 10 skall bli så god som möjligt.Fig. 1 shows the surface of the base material 10 against the roller or plate. Prior to application of the base layer 20, the base material 10 is surface treated by blasting, such as sandblasting, so that the surface of the base material achieves a surface roughness having a roughness value between about Ra 0.5 and 5.0, preferably between about Ra 1.0 and 4.0. The surface treatment is performed so that the strength of the base layer 20 to the base material 10 is as good as possible.

Blästringen medför att grundmaterialet ernàr en be- stämd ràhet, så att partiklarna i en efterföljande metall- sprutning fäster sig vid grundmaterialets 10 yta genom diffusion och mekanisk fastsättning, såsom värmeöverföring och krympning.The blasting causes the base material to reach a certain roughness, so that the particles in a subsequent metal spraying adhere to the surface of the base material 10 by diffusion and mechanical attachment, such as heat transfer and shrinkage.

Före nämnda metallsprutning av basskiktet 20 utföres en förvärmning av grundmaterialets yta med till exempel en varmluftspistol, gasbrännare eller liknande, från mellan cirka 40°C till 60°C, företrädesvis cirka 50°C. Förvärm- ningen utföres för att förhindra värmespänning och vrid- ning, som kan minska värmeskiktets hàllfasthet till grund- materialets 10 yta. I vissa fall är denna förvärmning inte nödvändig; detta beror pà typen av grundmaterial samt mate- rialval för basskiktet.Prior to said metal spraying of the base layer 20, a preheating of the surface of the base material is performed with, for example, a hot air gun, gas burner or the like, from between about 40 ° C to 60 ° C, preferably about 50 ° C. The preheating is performed to prevent thermal stress and rotation, which can reduce the strength of the heating layer to the surface of the base material. In some cases, this preheating is not necessary; this depends on the type of base material and the choice of material for the base layer.

Föreliggande uppfinning innefattar i en föredragen utföringsform ett basskikt 20, vilket är mikroporöst och vätskeabsorberande, samt ett toppskikt 30, vilket är penetrerande och tätande. Basskiktet 20 pàföres genom me- tallsprutning, varvid förstoftad, smält metall sprutas på grundmaterialets 10 yta. Detta kan utföras genom att pulver 10 15 20 25 30 525 542 ,,,. lr rr rrrr rr rr f. r r < r rr r I 1 r r . . 2oo1-os-1a 1==\osz1 Bergen PatentkonconP\oo3\P-sz\1>o9z1ooos 030905 ny beslwpløšammjluu: GQ; 5 ¿ _ '1 f 2 2 'WS . i I :”' _ _ ' I c r ' ' * r . 5 f' ff f: rr u i ' eller metalltråd matas in i en värmekälla, varvid sprut- materialet finfördelas och i varmt, mjukt tillstånd sprutas mot grundmaterialets 10 yta, varefter sprutpartiklarna av- kyles, fäster sig och bildar ett mikroporöst skikt.The present invention includes in a preferred embodiment a base layer 20, which is microporous and liquid absorbent, and a topsheet 30, which is penetrating and sealing. The base layer 20 is applied by metal spraying, whereby sputtered, molten metal is sprayed on the surface of the base material 10. This can be done by powder 10 15 20 25 30 525 542 ,,,. lr rr rrrr rr rr f. r r <r rr r I 1 r r. . 2oo1-os-1a 1 == \ osz1 Bergen PatentkonconP \ oo3 \ P-sz \ 1> o9z1ooos 030905 ny bezwpløšammjluu: GQ; 5 ¿_ '1 f 2 2' WS. i I: ”'_ _' I c r '' * r. 5 f 'ff f: rr u i' or metal wire is fed into a heat source, whereby the spray material is atomized and in a warm, soft state sprayed against the surface of the base material 10, after which the spray particles cool, adhere and form a microporous layer.

Lämpliga sprutmaterial för basskiktet kan vara ett hårt och korrosionsbeständigt material. Baserat på grundlig utprovning visar det sig att material, som består av eller innefattar kromstàl, rostfritt eller syrafast stål, krom- eller volframkarbid, krom- eller aluminiumoxid, eller brons, är bäst lämpat som basskikt. Materialet påföres me- delst varmsprutning, såsom till exempel plasmasprutning, ljusbägesprutning eller flamsprutning vid hög eller låg hastighet, till en skikttjocklek om cirka 0,01 mm till cirka 10 mm, företrädesvis cirka 0,05 mm till cirka 5 mm, i beroende av grundmaterialet och/eller användningsomrádet.Suitable spray materials for the base layer can be a hard and corrosion-resistant material. Based on thorough testing, it turns out that materials consisting of or comprising chromium steel, stainless or acid-resistant steel, chromium or tungsten carbide, chromium or alumina, or bronze, are best suited as a base layer. The material is applied by hot spraying, such as plasma spraying, arc spraying or flame spraying at high or low speed, to a layer thickness of about 0.01 mm to about 10 mm, preferably about 0.05 mm to about 5 mm, depending on the base material. and / or the area of use.

Andra kända metallsprutningsmetoder kan naturligtvis även användas.Of course, other known metal spraying methods can also be used.

Efter det att basskiktet 20 är påfört till önskad skikttjocklek, påföres en bornitridsuspension på basskiktet med till exempel en sprutpistol med kall eller varm luft.After the base layer 20 is applied to the desired layer thickness, a boron nitride suspension is applied to the base layer with, for example, a spray gun with cold or hot air.

Bornitridskiktet kan även pàföras medelst pensling eller annan vanlig påföringsmetod, men användning av en sprut- pistol ger det bästa resultatet.The boron nitride layer can also be applied by brushing or other common application method, but the use of a spray gun gives the best result.

Detta toppskikt 30 av bornitridsuspension penetrerar in i basskiktet 20, dvs att bornitridpartiklar fastnar i basskiktets 20 mikroporer och samlas mellan skiktets hårda partiklar. På så sätt bildas lågfriktionsegenskapen. Bor- nitridsuspensionen bildar därmed toppskiktet 30, som inne- fattar ett antal pàförda lager av bornitridpulver löst i etanol, varvid etanolen efter påföring avdunstar och åstad- ett ej klibbigt och vattenavvisande skikt med låg friktion. kommer, i kombination med basskiktet, Efter en viss torktid påföres ytterligare ett lager med bornitridsuspension, vilket efter ny torktid putsas med 10 15 523 542 ,,m . .f . < . . _ . . _ zooi-os-m 1>=\o921 Bergen Pacencxoncør\P\oo3\P-s1:\1>oaz1ooo3_o3o9os_ny besmpxfišáfimfifírše vb: i . 'i ' : "f ' 1 g' ; . . . < 6 m ru r: «f n. ett fint putsmedel. Denna operation upprepas ett antal gånger till dess en fin och slät ytteryta erhålles.This topsheet 30 of boron nitride suspension penetrates into the base layer 20, i.e., boron nitride particles adhere to the micropores of the base layer 20 and collect between the hard particles of the layer. In this way, the low-friction property is formed. The boron nitride suspension thus forms the top layer 30, which comprises a number of applied layers of boron nitride powder dissolved in ethanol, the ethanol evaporating after application and producing a non-sticky and water-repellent layer with low friction. will, in combination with the base layer, After a certain drying time, an additional layer of boron nitride suspension is applied, which after a new drying time is plastered with 10 523 542 ,, m. .f. <. . _. . _ zooi-os-m 1> = \ o921 Bergen Pacencxoncør \ P \ oo3 \ P-s1: \ 1> oaz1ooo3_o3o9os_ny besmpx fi šá fi m fi fírše vb: i. 'i': "f '1 g';... <6 m ru r:« f n. a fine polish. This operation is repeated a number of times until a fine and smooth outer surface is obtained.

Föreliggande uppfinning åstadkommer därmed en belägg- ning för valsar, i synnerhet för användning inom pappers- industrin, och slit- och mellanläggsplattor, i synnerhet för tillverkning av spån- och fiberplattor, som består av ett basskikt av metall eller keramik samt ett toppskikt. I synnerhet ästadkommes ett kombinationsskikt som innefattar ett basskikt, vilket består av ett antal varmsprutade, mikroporösa och vätskeabsorberande metallager samt ett me- talliskt toppskikt, vilket består av ett antal penetrerande och tätande lager av bornitrid. Denna beläggning åstadkom- mer hàrda, slitstarka, släta skikt med låg friktion och med följande typiska egenskaper: vattenavvisande, smuts- och dammavvisande samt hög beständighet mot korrosion, i jäm- förelse med till exempel rostfritt stål, samt temperatur.The present invention thus provides a coating for rollers, in particular for use in the paper industry, and wear and liner plates, in particular for the manufacture of chipboard and fibreboard, which consists of a base layer of metal or ceramic and a top layer. In particular, a combination layer is provided which comprises a base layer, which consists of a number of hot-sprayed, microporous and liquid-absorbent metal layers and a metallic top layer, which consists of a number of penetrating and sealing layers of boron nitride. This coating produces hard, durable, smooth layers with low friction and with the following typical properties: water-repellent, dirt- and dust-repellent and high resistance to corrosion, compared to, for example, stainless steel, and temperature.

Claims (10)

W U 20 25 30 35 ... ... . . .- 2001-09-18 P=\0921 Bergen Patentkontor\P\003\P-SE\P092l0003_031209__ny beslupluåarnzíioo' Go ; ~ E 100 I 0 I Ü . . . . 7 PATENTKRAVW U 20 25 30 35 ... .... . .- 2001-09-18 P = \ 0921 Bergen Patentkontor \ P \ 003 \ P-SE \ P092l0003_031209__ny beslupluåarnzíioo 'Go; ~ E 100 I 0 I Ü. . . . 7 PATENT REQUIREMENTS 1. Beläggning för valsar, i synnerhet för användning inom pappersindustrin, samt slit- och mellanläggsplattor, i synnerhet för tillverkning av spán- och fiberplattor, vil- ken beläggning består av ett basskikt av metall eller kera- mik samt ett toppskikt, kännetecknad av att nämnda bas- skikt består av ett antal varmsprutade, mikroporösa och vätskeabsorberande metallager eller keramiklager, och att nämnda toppskikt består av ett antal penetrerande och tätande lager av bornitrid.Coating for rollers, in particular for use in the paper industry, and wear and liner plates, in particular for the manufacture of chipboard and fibreboard, which coating consists of a base layer of metal or ceramic and a top layer, characterized in that said base layer consists of a number of hot-sprayed, microporous and liquid-absorbent metal layers or ceramic layers, and said top layer consists of a number of penetrating and sealing layers of boron nitride. 2. Beläggning enligt krav 1, kännetecknad av att basskiktet innefattar ett antal varmsprutade lager av hårt och korrosionsbeständigt material, stål, karbid, krom- eller aluminiumoxid, såsom till exempel krom- rostfritt eller syrafast stål, krom- eller volfram- eller brons. kånnetecknad toppskiktet innefattar ett antal påförda lager av bornit-Coating according to Claim 1, characterized in that the base layer comprises a number of hot-sprayed layers of hard and corrosion-resistant material, steel, carbide, chromium or alumina, such as, for example, chromium-stainless or acid-resistant steel, chromium or tungsten or bronze. The top layer comprises a number of applied layers of boronite 3. Beläggning enligt krav 1, av att ridpulver löst i etanol.Coating according to claim 1, in that riding powder dissolved in ethanol. 4. Beläggning enligt krav 1-3, kännetecknad av att skikttjockleken är från cirka 0,01 mm till 10 mm, företrä- desvis cirka 0,05 mm till 5 mm.Coating according to claims 1-3, characterized in that the layer thickness is from about 0.01 mm to 10 mm, preferably about 0.05 mm to 5 mm. 5. Metod för att belägga ett grundmaterials yta (10) på en vals, i synnerhet för användning inom pappersindu- strin, samt slit- och mellanläggsplattor, i synnerhet vid tillverkning av spán- och fiberplattor, kännetecknad av (10) en ytråhet om cirka Ra 0,5 till 5,0, 1,0 till 4,0, att grundmaterialets yta att grundmaterialets yta blästras för att ernå företrädesvis cirka Ra (10) peratur om cirka 40°C till cirka 60°C, företrädesvis cirka 50°C, varefter ett basskikt att bilda ett antal varmsprutade, mikroporösa och vätskeab- uppvärmes till en tem- (20) varmsprutas på ytan, för sorberande metallager eller keramiklager, att, efter det att önskad skikttjocklek är uppnådd på basskiktet (20), (30) ett antal toppskikt av bornitrid på- Up 15 20 25 523 542 ._ . . . .. .... 2oo1-o9»1s P=\o921 Bergen pacenckonnor\p\oonp-smposz1oooa_oa12o9_ny besnflpmäwïåoçïxå g E _ u ' . . . . . . ._ . . 8 . . . ..' .Z-J.. föres vid en temperatur om cirka 30°C till cirka 70°C, fö- reträdesvis cirka 40°C till cirka 60°C, för att bilda ett antal penetrerande och tätande lager av bornitrid.Method for coating the surface (10) of a base material on a roll, in particular for use in the paper industry, and wear and liner plates, in particular in the manufacture of chipboard and fibreboard, characterized by (10) a surface roughness of about Ra 0.5 to 5.0, 1.0 to 4.0, that the base material surface is blasted to the base material surface to preferably reach about Ra (10) temperature of about 40 ° C to about 60 ° C, preferably about 50 ° C , after which a base layer to form a plurality of hot sprayed, microporous and liquid wafers is heated to a thermal spray (20) on the surface, for sorbent metal layers or ceramic layers, that, after the desired layer thickness is reached on the base layer (20), (30) a number of top layers of boron nitride on- Up 15 20 25 523 542 ._. . . .. .... 2oo1-o9 »1s P = \ o921 Bergen pacenckonnor \ p \ oonp-smposz1oooa_oa12o9_ny besn fl pmäwïåoçïxå g E _ u '. . . . . . ._. . 8. . . Is carried out at a temperature of about 30 ° C to about 70 ° C, preferably about 40 ° C to about 60 ° C, to form a number of penetrating and sealing layers of boron nitride. 6. Metod enligt krav 5, kännetecknad av att topp- skiktet (30) páföres som bornitridpulver löst i etanol, varvid etanolen efter påföring avdunstar och åstadkommer, i kombination med basskiktet (20), ett ej klibbigt och vat- tenavvisande skikt med låg friktion.Method according to Claim 5, characterized in that the top layer (30) is applied as boron nitride powder dissolved in ethanol, the ethanol evaporating after application and producing, in combination with the base layer (20), a non-sticky and water-repellent layer with low friction. . 7. Metod enligt krav 5-6, kännetecknad av att toppskiktet (30) páföres med en sprutpistol, som utnyttjar kall eller varm tryckluft, eller medelst pensling.Method according to claims 5-6, characterized in that the top layer (30) is applied with a spray gun, which uses cold or hot compressed air, or by means of brushing. 8. Metod enligt krav 5-7, första påföringen av bornitridsuspension penetrerar in i kånnetecknad av att den basskiktet (20), fästes i basskiktets mikroporer samt an- samlas mellan skiktets hårda partiklar så att en önskad lågfriktionsegenskap åstadkommes.A method according to claims 5-7, the first application of boron nitride suspension penetrates into the trait characterized in that the base layer (20) is attached to the micropores of the base layer and accumulates between the hard particles of the layer so that a desired low friction property is achieved. 9. Metod enligt krav 5-8, kännetecknad ter en önskad torktid efter den första påföringen av bor- av att, ef- nitrid, ett nytt lager bornitridsuspension påföres, som ef- ter en ny önskad torktid ytbehandlas med ett lämpligt puts- medel.Method according to claims 5-8, characterized in that a desired drying time after the first application of boron is applied, after nitride, a new layer of boron nitride suspension is applied, which after a new desired drying time is surface treated with a suitable polishing agent. 10. Metod enligt krav 9, kännetecknad av att ytter- ligare lager med bornitridsuspension växelvis pàföres och ytbehandlas efter en önskad torktid till dess en jämn och slät yta ästadkommits.Method according to Claim 9, characterized in that additional layers of boron nitride suspension are applied alternately and surface-treated after a desired drying time until a smooth and even surface is achieved.
SE0100310A 2000-05-22 2001-02-02 Coating for rollers and plates as well as a method for applying said coating SE523542C2 (en)

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