DE102009042743A1 - Mold or crucible and method for coating heat exchanger surfaces of a mold or crucible - Google Patents

Mold or crucible and method for coating heat exchanger surfaces of a mold or crucible Download PDF

Info

Publication number
DE102009042743A1
DE102009042743A1 DE200910042743 DE102009042743A DE102009042743A1 DE 102009042743 A1 DE102009042743 A1 DE 102009042743A1 DE 200910042743 DE200910042743 DE 200910042743 DE 102009042743 A DE102009042743 A DE 102009042743A DE 102009042743 A1 DE102009042743 A1 DE 102009042743A1
Authority
DE
Germany
Prior art keywords
coating
nano
mold
crucible
heat exchanger
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Withdrawn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
DE200910042743
Other languages
German (de)
Inventor
Hans-Günter Dr. Wobker
Jan Bakshi
Gerhard HUGENSCHÜTT
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.)
KME Special Products GmbH and Co KG
Original Assignee
KME Germany GmbH
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 KME Germany GmbH filed Critical KME Germany GmbH
Priority to DE200910042743 priority Critical patent/DE102009042743A1/en
Priority to EP10401164A priority patent/EP2301690A1/en
Publication of DE102009042743A1 publication Critical patent/DE102009042743A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/059—Mould materials or platings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling the moulds
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/1208—Oxides, e.g. ceramics
    • C23C18/1216—Metal 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/122—Inorganic polymers, e.g. silanes, polysilazanes, polysiloxanes
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1229—Composition of the substrate
    • C23C18/1241—Metallic substrates
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125—Process of deposition of the inorganic material
    • C23C18/1254—Sol or sol-gel processing
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125—Process of deposition of the inorganic material
    • C23C18/1262—Process of deposition of the inorganic material involving particles, e.g. carbon nanotubes [CNT], flakes
    • C23C18/127—Preformed particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/20—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes with nanostructures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

Die Erfindung betrifft eine Kokille oder einen Tiegel aus Kupfer oder einer Kupferlegierung, welche/r Wärmetauscheroberflächen aufweist, die eine Nano-Beschichtung, insbesondere auf Basis eines keramischen oder glasartigen Werkstoffs, aufweisen, wobei die Nano-Beschichtung Schichtdicken zwischen 4 µm und 10 µm aufweist sowie ein Verfahren zum Aufbringen einer Nano-Beschichtung auf Wärmetauscheroberflächen.The invention relates to a mold or a crucible made of copper or a copper alloy which has heat exchanger surfaces which have a nano-coating, in particular based on a ceramic or glass-like material, the nano-coating having layer thicknesses between 4 μm and 10 μm as well as a method for applying a nano-coating on heat exchanger surfaces.

Description

Die Erfindung betrifft eine Kokille oder einen Tiegel sowie ein Verfahren zum Beschichten von Wärmetauscheroberflächen einer Kokille oder eines Tiegels.The invention relates to a mold or a crucible and a method for coating heat exchanger surfaces of a mold or a crucible.

Zum Übertragen großer Wärmemengen werden häufig Wärmetauscher aus Kupfer oder Kupferlegierungen eingesetzt, da sie eine besonders hohe Wärmeleitfähigkeit aufweisen und sehr beständig gegenüber Korrosion sind. Häufig arbeiten die Wärmetauscher sekundärseitig nur unzureichend aufbereiteten Kühlwässern. Bei mangelhafter Wasseraufbereitung führen die Kühlwässer häufig starke Verschmutzungen mit sich, welche sich dann beispielsweise in Form von Mikroorganismen oder Kalk an den Wärmetauscheroberflächen anlagern und dadurch den Wirkungsgrad der Wärmetauscher reduzieren.Heat exchangers made of copper or copper alloys are frequently used to transfer large amounts of heat, since they have a particularly high thermal conductivity and are very resistant to corrosion. Often, the heat exchangers on the secondary side only work inadequately prepared cooling water. In case of poor water treatment, the cooling water often lead to heavy pollution, which then accumulate, for example in the form of microorganisms or lime on the heat exchanger surfaces and thereby reduce the efficiency of the heat exchanger.

Der Erfindung liegt ausgehend vom Stand der Technik die Aufgabe zu Grunde, eine Kokille oder einen Tiegel aus Kupfer oder einer Kupferlegierung aufzuzeigen, die mit einer Beschichtung versehen ist, welche die Ablagerung und das Anhaften von Partikeln oder das Aufwachsen von Schichten hemmt oder sogar verhindert, ferner soll ein Verfahren zum Aufbringen einer solchen Beschichtung auf eine Kokille oder einen Tiegels aufgezeigt werden.The invention is based on the object of the invention to show a mold or a crucible of copper or a copper alloy, which is provided with a coating which inhibits the deposition and adherence of particles or the growth of layers, or even prevents Furthermore, a method for applying such a coating to a mold or a crucible to be shown.

Der gegenständliche Teil der Aufgabe wird durch eine Kokille oder einen Tiegel mit den Merkmalen des Patentanspruchs 1 gelöst.The objective part of the object is achieved by a mold or a crucible having the features of patent claim 1.

Der verfahrensmäßige Teil der Aufgabe wird durch ein Verfahren mit den Maßnahmen im Patentanspruch 8 gelöst.The procedural part of the problem is solved by a method with the measures in claim 8.

Die Kokille oder der Tiegel aus Kupfer oder einer Kupferlegierung weist Wärmetauscheroberflächen auf, die mit einem Kühlfluid beaufschlagt werden und die mit einer Nano-Beschichtung, insbesondere auf Basis einer nach dem Sol-Gel-Verfahren hergestellten Beschichtung, versehen ist, wobei die Nano-Beschichtung Schichtdicken zwischen 4 μm und 10 μm aufweist. Vorzugsweise ist die Nano-Beschichtung der Kokille oder des Tiegels eine Beschichtung, die im Wesentlichen auf Si-Ti-Al-Verbindungen basiert. Dabei kann die Beschichtung zusätzlich Mikropartikel aufweisen, welche die Wärmetauscheroberfläche vor mikrobiologischem Befall schützen. Geeignete Partikel sind z. B. Silber-Nanopartikel, die in die Schicht eingebaut werden und die Wärmetauscheroberfläche vor mikrobiologischem Befall schützen.The mold or crucible made of copper or a copper alloy has heat exchanger surfaces, which are exposed to a cooling fluid and which is provided with a nano-coating, in particular based on a sol-gel process produced coating, wherein the nano-coating Layer thicknesses between 4 microns and 10 microns. Preferably, the nanolayer of the mold or crucible is a coating based essentially on Si-Ti-Al compounds. The coating may additionally comprise microparticles which protect the heat exchanger surface from microbiological attack. Suitable particles are for. As silver nanoparticles that are incorporated into the layer and protect the heat exchanger surface from microbial attack.

Das Aufbringen der Nano-Beschichtung erfolgt vorzugsweise durch Sprühen oder Lackieren/Bestreichen. Dabei kann das Lackieren auch durch einen Tauchvorgang, Dip-Coating genannt, erfolgen. Nach dem Aufbringen der Nano-Beschichtung auf die Wärmetauscheroberfläche transformiert sich die flüssige Nano-Beschichtung in eine feste Nano-Beschichtung, welche bei Temperaturen zwischen 100°C und 400°C aushärtet. Die fertige Nano- oder auch Sol-Gel-Beschichtung weist eine glatte und geschlossene Oberfläche auf.The application of the nano-coating is preferably carried out by spraying or painting / brushing. The painting can also be done by a dipping process called dip coating. After applying the nano-coating on the heat exchanger surface, the liquid nano-coating transforms into a solid nano-coating, which cures at temperatures between 100 ° C and 400 ° C. The finished nano- or sol-gel coating has a smooth and closed surface.

Beim Verfahren zum Aufbringen einer Nano-Beschichtung auf Wärmetauscheroberflächen einer Kokille oder eines Tiegels aus Kupfer oder einer Kupferlegierung erhalten die Wärmetauscheroberflächen in einem ersten Schritt durch Strahlen oder Schleifen eine Oberflächenrauheit zwischen 2 μm bis 5 μm. Dies ermöglicht eine optimale Haftung der Nano-Beschichtung auf der Wärmetauscheroberfläche. Anschließend werden die Wärmetauscheroberflächen entfettet und durch Besprühen, Bestreichen/Lackieren oder Eintauchen mit der Nano-Beschichtung auf Basis einer nach dem Sol-Gel-Verfahren hergestellten Beschichtung beschichtet. Die so aufgebrachte flüssige Nano-Beschichtung transformiert zu einer festen Nano-Beschichtung und wird bei Temperaturen zwischen 100°C und 400°C ausgehärtet, wobei die organischen Bestandteile entweichen.In the method for applying a nano-coating on heat exchanger surfaces of a mold or a crucible made of copper or a copper alloy, the heat exchanger surfaces in a first step by blasting or grinding surface roughness between 2 microns to 5 microns. This allows optimal adhesion of the nano-coating on the heat exchanger surface. Subsequently, the heat exchanger surfaces are degreased and coated by spraying, brushing / painting or dipping with the nano-coating based on a coating prepared by the sol-gel process. The thus applied liquid nano-coating transforms to a solid nano-coating and is cured at temperatures between 100 ° C and 400 ° C, the organic components escape.

Durch das Aufbringen der Nano-Beschichtung werden eventuell noch an der Wärmetauscheroberfläche der Kokille oder des Tiegels vorhandene Kavitäten verschlossen, so dass sich hier keine Ablagerungen mehr festsetzen können.By applying the nano-coating cavities possibly still on the heat exchanger surface of the mold or crucible are closed, so that no deposits can fix more here.

Die so erzeugten Nano-Beschichtungen zeichnen sich durch eine sehr geringe Dicke aus, so dass der Einfluss auf die Wärmeleitfähigkeit der Wärmetauscheroberfläche vernachlässigbar gering ist. Durch die geringe makroskopische Oberflächenrauheit können sich im Kühlwasser vorhandene Verschmutzungen oder Kalk nicht an den Wärmetauscheroberflächen der Kokille oder des Tiegels festsetzen, sondern werden durch die Strömung des Kühlwassers von der Oberfläche abgespült. Dies bewirkt eine Art selbstreinigenden Effekt, durch welchen sich die Standzeit der Kokillen oder Tiegel erhöht. Darüber hinaus ist die Nano-Beschichtung auf Basis keramischer oder glasartiger Werkstoffe auch gegenüber Strömungsgeschwindigkeiten des Kühlwassers zwischen 12 und 14 m/s beständig.The nano-coatings thus produced are characterized by a very small thickness, so that the influence on the thermal conductivity of the heat exchanger surface is negligible. Due to the low macroscopic surface roughness, impurities or lime present in the cooling water can not settle on the heat exchanger surfaces of the mold or crucible, but are rinsed off the surface by the flow of cooling water. This causes a kind of self-cleaning effect, which increases the life of the molds or crucibles. In addition, the nano-coating based on ceramic or vitreous materials is also resistant to flow velocities of the cooling water between 12 and 14 m / s.

Claims (9)

Kokille oder Tiegel aus Kupfer oder einer Kupferlegierung, welche/r Wärmetauscheroberflächen aufweist, die mit einem Kühlfluid beaufschlagt werden und mit einer Nano-Beschichtung, insbesondere auf Basis einer nach dem Sol-Gel-Verfahren hergestellten Beschichtung, versehen ist, wobei die Nano-Beschichtung Schichtdicken zwischen 4 und 10 μm aufweist.Mold or crucible made of copper or a copper alloy, which / s heat exchanger surfaces, which are acted upon by a cooling fluid and provided with a nano-coating, in particular based on a sol-gel process produced coating, wherein the nano-coating Layer thicknesses between 4 and 10 microns. Kokille oder Tiegel nach Anspruch 1, dadurch gekennzeichnet, dass die Nano-Beschichtung im Wesentlichen auf Si-, Al-, Ti-Verbindungen basiert. Mold or crucible according to claim 1, characterized in that the nano-coating is based essentially on Si, Al, Ti compounds. Kokille oder Tiegel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Nano-Beschichtung Mikropartikel aufweist.Mold or crucible according to claim 1 or 2, characterized in that the nano-coating comprises microparticles. Kokille oder Tiegel nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Nano-Beschichtung eine Silberdotierung aufweist.Mold or crucible according to one of claims 1 to 3, characterized in that the nano-coating has a silver doping. Kokille oder Tiegel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Nano-Beschichtung durch Sprühen, Dip-Coating oder Bestreichen aufbringbar ist.Mold or crucible according to one of claims 1 to 4, characterized in that the nano-coating can be applied by spraying, dip-coating or brushing. Kokille oder Tiegel nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Nano-Beschichtung bei Temperaturen zwischen 100°C und 400°C aushärtbar ist.Mold or crucible according to one of claims 1 to 5, characterized in that the nano-coating is curable at temperatures between 100 ° C and 400 ° C. Kokille oder Tiegel nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Nano-Beschichtung eine glatte und geschlossene Oberfläche aufweist.Mold or crucible according to one of claims 1 to 6, characterized in that the nano-coating has a smooth and closed surface. Verfahren zum Aufbringen einer Nano-Beschichtung auf Wärmetauscheroberflächen einer Kokille oder eines Tiegels aus Kupfer oder einer Kupferlegierung, bei welchem die Wärmetauscheroberfläche in einem ersten Schritt durch Strahlen oder Schleifen eine Oberflächenrauheit zwischen 2 μm bis 5 μm erhält, entfettet wird, durch Besprühen, Bestreichen oder Dip-Coating mit der Nano-Beschichtung, die nach dem Sol-Gel-Verfahren hergestellt ist, beschichtet wird und bei welchem die Nano-Beschichtung bei Temperaturen zwischen 100°C und 400°C ausgehärtet werden.A method for applying a nano-coating on heat exchanger surfaces of a mold or a crucible made of copper or a copper alloy, in which the heat exchanger surface in a first step by blasting or grinding a surface roughness between 2 .mu.m to 5 .mu.m, is degreased by spraying, brushing or Dip coating with the nano-coating, which is produced by the sol-gel process, coated and in which the nano-coating at temperatures between 100 ° C and 400 ° C are cured. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass die Nano-Beschichtung bei Temperaturen über 500°C gesintert wird.A method according to claim 8, characterized in that the nano-coating is sintered at temperatures above 500 ° C.
DE200910042743 2009-09-25 2009-09-25 Mold or crucible and method for coating heat exchanger surfaces of a mold or crucible Withdrawn DE102009042743A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200910042743 DE102009042743A1 (en) 2009-09-25 2009-09-25 Mold or crucible and method for coating heat exchanger surfaces of a mold or crucible
EP10401164A EP2301690A1 (en) 2009-09-25 2010-09-15 Mould or vessel and method for coating heating surfaces of a mould or a vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910042743 DE102009042743A1 (en) 2009-09-25 2009-09-25 Mold or crucible and method for coating heat exchanger surfaces of a mold or crucible

Publications (1)

Publication Number Publication Date
DE102009042743A1 true DE102009042743A1 (en) 2011-03-31

Family

ID=43528340

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200910042743 Withdrawn DE102009042743A1 (en) 2009-09-25 2009-09-25 Mold or crucible and method for coating heat exchanger surfaces of a mold or crucible

Country Status (2)

Country Link
EP (1) EP2301690A1 (en)
DE (1) DE102009042743A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2389188B1 (en) * 2011-03-29 2013-09-02 Rovalma Sa CATHODIC PROTECTION THROUGH COATING FOR COOLING CIRCUITS OR OTHER HOLES OR CHANNELS.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185551A (en) * 1983-04-06 1984-10-22 Osaka Fuji Kogyo Kk Casting mold for continuous casting and rust-preventive processing method thereof
DE10122618A1 (en) * 2001-05-10 2002-11-14 Sms Demag Ag Process for delaying the formation of deposits in cooling channels of continuous casting molds
DE102005023771A1 (en) * 2005-05-19 2006-11-23 R. Scheuchl Gmbh Heat exchanger has surfaces of walls provided with coating of dirt deflecting particles in nano-range

Also Published As

Publication number Publication date
EP2301690A1 (en) 2011-03-30

Similar Documents

Publication Publication Date Title
DE102009010110B4 (en) Erosion protection coating system for gas turbine components
US20130171367A1 (en) Coating compositions, applications thereof, and methods of forming
US20130167965A1 (en) Coating compositions, applications thereof, and methods of forming
EP2134797B1 (en) Biocidal/hydrophobic inner coating of condenser pipes (of industrial turbines and subsidiary cooling cycles)
EP2905455B1 (en) Method for coating a bore and cylinder block of an internal combustion engine
DE19521344C5 (en) Use of plasma polymer-hard material layer sequences as functional layers in mass transport or heat exchanger systems
EP1857567A1 (en) Method of manufacturing a flat steel product coated with a corrosion protection system
EP1144724A2 (en) Heat exchanger with a reduced tendency to produce deposits and method for producing same
CH708312A2 (en) Coating, coated turbine component and coating processes.
DE102006009116A1 (en) Corrosion-resistant substrate and method for its production
EP1910008B1 (en) Component with a surface to be soldered
DE102005042475A1 (en) Mold release layer for casting non-ferrous metals
EP2236974A2 (en) Coated heat exchanger
EP2834392B1 (en) Cr (vi)-free anti-corrosion layers or adhesive layers which contain a solution comprising phosphate ions and metal powder, the metal powder being at least partially coated with si or si alloys
EP1994099B1 (en) Coat or coating to counteract crystalline deposits
EP2201151A2 (en) Wear protection coating
EP3574054B1 (en) Use of sio2 coatings in water-carrying cooling systems
EP2591143B1 (en) Method for coating moulded bodies and coated moulded body
DE102015116916A1 (en) Coating, coating system and coating process
WO2019219551A1 (en) Brake body and method for producing same
EP1993755A1 (en) Mold release layer for casting nonferrous metals
DE102009042743A1 (en) Mold or crucible and method for coating heat exchanger surfaces of a mold or crucible
EP2723916B1 (en) Casting component, and method for the application of an anticorrosive layer
DE10159288B4 (en) Process for the permanent coating of a substrate
WO2012107269A1 (en) Protective coating, in particular for aerospace engineering components, and the production thereof

Legal Events

Date Code Title Description
R081 Change of applicant/patentee

Owner name: KME GERMANY GMBH & CO. KG, DE

Free format text: FORMER OWNER: KME GERMANY AG & CO. KG, 49074 OSNABRUECK, DE

Effective date: 20130122

R005 Application deemed withdrawn due to failure to request examination