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DE3545117A1 - Flat ceramic body II - Google Patents

Flat ceramic body II

Info

Publication number
DE3545117A1
DE3545117A1 DE19853545117 DE3545117A DE3545117A1 DE 3545117 A1 DE3545117 A1 DE 3545117A1 DE 19853545117 DE19853545117 DE 19853545117 DE 3545117 A DE3545117 A DE 3545117A DE 3545117 A1 DE3545117 A1 DE 3545117A1
Authority
DE
Germany
Prior art keywords
flat
ceramic body
ceramic
thermal expansion
glaze
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Withdrawn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
DE19853545117
Other languages
German (de)
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.)
Buchtal GmbH
Original Assignee
Buchtal 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 Buchtal GmbH filed Critical Buchtal GmbH
Priority to DE19853545117 priority Critical patent/DE3545117A1/en
Priority to EP86117576A priority patent/EP0229351B1/en
Priority to AT86117576T priority patent/ATE44344T1/en
Priority to ES86117576T priority patent/ES2009778B3/en
Priority to DE8686117576T priority patent/DE3664182D1/en
Publication of DE3545117A1 publication Critical patent/DE3545117A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/20Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/28Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
    • H05B3/283Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material the insulating material being an inorganic material, e.g. ceramic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Resistance Heating (AREA)
  • Finishing Walls (AREA)
  • Laminated Bodies (AREA)
  • Ceramic Capacitors (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

1. Flat ceramic body having an electrically conductive resistance coating on the side which faces away from its visible side, characterized in that the electrically conductive resistance coating consists of a flat element of a metallic material having a high resistivity, which is embedded in a ceramic glazing, has break-through openings, and can be connected to a current source, and whose melting point is above the melting point of the ceramic glazing and whose coefficient of thermal expansion is approximatively the same as that of the ceramic glazing.

Description

Aus der EP-A- 01 57 179 ist ein flächiger keramischer Körper bekannt geworden, der auf der seiner Sichtseite abgewendeten Seite mit einer elektrisch leitenden Wider­ standsbeschichtung versehen ist. Solche flächigen keramischen Körper finden beispielsweise als Verkleidungsplatten für die Gestaltung der Wände oder des Fußbodens bzw. der Decke von Wohn-, Geschäfts- und Büroräumen, aber auch von Sanitärräumen, Sport- und Schwimmhallen Verwendung. Sie können auch als Form­ steine für Schwimmbeckenverkleidungen od. dgl. eingesetzt werden. Durch ihre Beheizbarkeit ist es möglich, die auf einer damit zu verkleidenden Wand-, Decken- oder Bodenfläche zur Verfügung stehende Strahlungsfläche optimal zu gestalten, mit möglichst wenigen elektrischen Anschluß- und Verbindungs­ elementen auszukommen und eine gleichmäßige Wärmeabstrahlung zu gewährleisten.EP-A-01 57 179 is a flat ceramic Body known, on the visible side facing away with an electrically conductive counter stand coating is provided. Such flat ceramic Bodies can be found, for example, as cladding panels for the Design of the walls or the floor or the ceiling of Living, business and office spaces, but also of sanitary rooms, Sports and swimming pools use. You can also use it as a shape stones used for swimming pool cladding or the like will. Due to their heatability, it is possible to run on a wall, ceiling or floor surface to be clad with it To optimally design the available radiation area, with as few electrical connections as possible elements and an even heat radiation to guarantee.

Der Anschluß der elektrisch leitenden Widerstandsbeschichtung an die Stromquelle erfolgt über am Rande des flächigen Körpers ange­ brachte bänderartige Kontaktierungselemente, die z. B. in Form eines streifenförmigen Cu-Auftrages oder einer eingebrannten Ag-Paste vorliegen.The connection of the electrically conductive resistance coating to the power source takes place on the edge of the flat body brought ribbon-like contacting elements, the z. B. in In the form of a striped copper coating or a burned-in Ag paste is present.

Es hat sich jedoch gezeigt, daß bei Verwendung von Cu-Kontaktierungs­ elementen eine Verbindung derselben mit der Glasur mitunter überhaupt nicht, jedenfalls aber nur sehr schwierig herstellbar ist und verhältnis­ mäßig bald wenigstens teilweise wieder verloren geht. Untersuchungen haben ergeben, daß diese Schwierigkeiten auf den erheblich unter­ schiedlichen Wärmeausdehnungskoeffizienten des für die Kontaktierungs­ elemente verwendeten Kupfers und der den flächigen Körper abdeckenden Widerstandsglasur zurückzuführen sind.However, it has been shown that when using Cu contacting elements sometimes connecting them with the glaze at all not, but at least it is very difficult to manufacture and ratio will soon be at least partially lost again. Investigations have shown that these difficulties are significantly below different coefficients of thermal expansion for contacting elements used copper and the covering the flat body Resistance glaze are due.

Auch bei eingebrannten Streifen aus einer Silberpaste ist die Haftung zwischen dem Silber und der Glasur häufig unzureichend. Liability is also guaranteed for burned-in strips made of silver paste often insufficient between the silver and the glaze.  

Hier will die Erfindung Abhilfe schaffen und schlägt vor, daß die elektrisch leitende Widerstandsbeschichtung aus einem in eine übliche Glasur eingebetteten, flächigen, Durchbrüche aufweisenden, an eine Stromquelle anschließbaren Element aus einem metallischen, einen hohen spezifischen elektrischen Widerstand aufweisenden Werkstoff besteht, dessen Schmelzpunkt oberhalb des Schmelz­ punktes der keramischen Glasur liegt und dessen Wärmeausdehnungs­ koeffizient annähernd gleich dem der keramischen Glasur ist.The invention seeks to remedy this and proposes that the electrically conductive resistance coating from one to one usual glaze embedded, flat, breakthrough, element made of a metallic, have a high specific electrical resistance Material exists, whose melting point is above the enamel point of the ceramic glaze and its thermal expansion coefficient is approximately the same as that of the ceramic glaze.

Besonders vorteilhaft ist es, wenn man die keramische Glasur so wählt, daß ihr Wärmeausdehnungskoeffizient in etwa gleich dem Wärmeausdehnungskoeffizient des flächigen keramischen Körpers ist.It is particularly advantageous if you have the ceramic glaze so choose that their coefficient of thermal expansion is approximately the same the coefficient of thermal expansion of the flat ceramic Body is.

In Weiterbildung weist der für das flächige Element gewählte Werkstoff einen Temperaturfaktor des elektrischen Widerstandes zwischen 20 und 600°C von größer als 2 auf.In further training, the one chosen for the flat element Material a temperature factor of the electrical resistance between 20 and 600 ° C of greater than 2.

Das Durchbrüche aufweisende flächige Element kann in Form eines Mäanders, einer Folie mit Löchern, oder eines Netzwerkes mit entsprechender Maschenweite vorliegen.The flat element having breakthroughs can be in the form of a Meander, a film with holes, or a network with appropriate mesh size are available.

Die Zeichnung zeigt in einer einzigen Figur einen Ausschnitt aus einem flächigen keramischen Körper, bei dem auf der der Sichtseite abgewendeten Seite eine Glasur mit eingebettetem flächigen Element vorgesehen ist.The drawing shows a section of a single figure a flat ceramic body, on the visible side a side with a glaze with embedded flat element is provided.

Mit 1 ist allgemein eine keramische Platte bezeichnet,deren Ab­ messungen z. B. bei einer Dicke von 8 mm betragen. Auf der sichtbaren Rückseite befindet sich eine Glasur 2. Mit 3, 3 a, 3 b sind drei Möglichkeiten von in die Glasur einzubettenden flächigen Elementen dargestellt, über die die elektrische Wider­ standsbeheizung erfolgt. 1 with a ceramic plate is generally designated, the measurements from z. B. at a thickness of 8 mm. There is a glaze 2 on the visible back. With 3 , 3 a , 3 b , three possibilities of flat elements to be embedded in the glaze are shown, via which the electrical resistance heating is carried out.

Für die Durchbrüche aufweisenden flächigen Elemente bestimmte Werkstoffe mit den geforderten Eigenschaften und auch einem Temperaturfaktor des elektrischen Widerstandes zwischen 20 und 600°C von größer als 2 sind im Handel, z. B. unter der Warenbezeichnung VACON und werden als Einschmelzlegierungen für elektronische Röhren angeboten.Certain elements designed for the breakthroughs Materials with the required properties and also one Temperature factor of the electrical resistance between 20 and 600 ° C greater than 2 are commercially available, e.g. B. under the Product name VACON and are used as smelting alloys offered for electronic tubes.

Erkennbar macht die Kontaktierung der Durchbrüche aufweisenden flächigen Elementes keinerlei Schwierigkeiten und kann an jeder beliebigen oder gewünschten Stelle vorgenommen werden, wie es bei 4, 4 a und 4 b angedeutet ist.The contacting of the sheet-like element having breakthroughs does not make any difficulties and can be carried out at any or desired location, as indicated at 4 , 4 a and 4 b .

Claims (4)

1. Flächiger keramischer Körper, der auf der seiner Sichtseite abgewendeten Seite mit einer elektrisch leitenden Widerstands­ beschichtung versehen ist, dadurch gekennzeich­ net, daß die elektrisch leitende Widerstandsbeschichtung aus einem in einer keramische Glasur eingebetteten, flächigen, Durchbrüche aufweisenden, an eine Stromquelle anschließbaren Element aus einem metallischen, einen hohen spezifischen elektrischen Widerstand aufweisenden Werkstoff besteht, dessen Schmelzpunkt oberhalb des Schmelzpunktes der keramischen Glasur liegt und dessen Wärmeausdehnungskoeffizient annähernd gleich dem der keramischen Glasur ist.1. Flat ceramic body, which is provided on its side facing away with an electrically conductive resistance coating, characterized in that the electrically conductive resistance coating from an embedded in a ceramic glaze, flat, breakthroughs, connectable to a power source element a metallic material with a high specific electrical resistance, the melting point of which lies above the melting point of the ceramic glaze and whose coefficient of thermal expansion is approximately equal to that of the ceramic glaze. 2. Flächiger keramischer Körper nach Anspruch 1, dadurch gekennzeichnet, daß die keramische Glasur einen Wärmeausdehnungskoeffizienten aufweist, der in etwa gleich dem Wärmeausdehnungskoeffizienten des flächigen keramischen Körpers ist. 2. Flat ceramic body according to claim 1, characterized characterized in that the ceramic glaze one Has coefficient of thermal expansion, which is approximately equal to that Coefficient of thermal expansion of the flat ceramic body is.   3. Flächiger keramischer Körper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das flächige Element einen Temperaturfaktor des elektrischen Widerstandes zwischen 20 und 600°C von größer als 2 aufweist.3. Flat ceramic body according to claim 1 or 2, characterized in that the flat Element a temperature factor of electrical resistance between 20 and 600 ° C greater than 2. 4. Flächiger keramischer Körper nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das flächige, Durchbrüche aufweisende Element die Form eines Mäanders, einer Folie mit Löchern, oder eines Netzwerkes mit entsprechender Maschenweite aufweist.4. Flat ceramic body according to one or more of the Claims 1 to 3, characterized in that the flat, breakthrough element has the shape of a Meander, a film with holes, or a network with has the appropriate mesh size.
DE19853545117 1985-12-19 1985-12-19 Flat ceramic body II Withdrawn DE3545117A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19853545117 DE3545117A1 (en) 1985-12-19 1985-12-19 Flat ceramic body II
EP86117576A EP0229351B1 (en) 1985-12-19 1986-12-17 Flat ceramic element
AT86117576T ATE44344T1 (en) 1985-12-19 1986-12-17 FLAT CERAMIC BODY II.
ES86117576T ES2009778B3 (en) 1985-12-19 1986-12-17 FLAT CERAMIC BODY.
DE8686117576T DE3664182D1 (en) 1985-12-19 1986-12-17 Flat ceramic element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853545117 DE3545117A1 (en) 1985-12-19 1985-12-19 Flat ceramic body II

Publications (1)

Publication Number Publication Date
DE3545117A1 true DE3545117A1 (en) 1987-06-25

Family

ID=6288958

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19853545117 Withdrawn DE3545117A1 (en) 1985-12-19 1985-12-19 Flat ceramic body II
DE8686117576T Expired DE3664182D1 (en) 1985-12-19 1986-12-17 Flat ceramic element

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8686117576T Expired DE3664182D1 (en) 1985-12-19 1986-12-17 Flat ceramic element

Country Status (4)

Country Link
EP (1) EP0229351B1 (en)
AT (1) ATE44344T1 (en)
DE (2) DE3545117A1 (en)
ES (1) ES2009778B3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710626A1 (en) * 1987-02-17 1988-08-25 Buchtal Gmbh ROOM HEATING ELEMENT CONSISTING OF A CERAMIC MOLDED BODY WITH AN ELECTRIC RESISTANT COATING, IN PARTICULAR IN THE FORM OF A CERAMIC PLATE

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1883914U (en) * 1963-03-07 1963-12-05 Siemens Elektrogeraete Gmbh FLAT-SHAPED RADIATOR.
DE2244157A1 (en) * 1972-09-08 1974-03-14 Ebenseer Betonwerke Gmbh SURFACE HEATING FOR COMPONENTS
DE2329424A1 (en) * 1973-06-08 1975-01-02 Siemens Ag Flat printed circuit heating element - comprises refractory plate sandwich
DE2534813A1 (en) * 1975-08-05 1977-02-10 Braun Ag Heating element for household appliances - has heating conductors on glass ceramic support electroplated to desired thickness
EP0112922A1 (en) * 1982-06-24 1984-07-11 Matsushita Electric Industrial Co., Ltd. Panel heater
DE3325204A1 (en) * 1983-07-13 1985-01-24 Reimbold & Strick GmbH & Co, 5000 Köln Heating element made of electrically conducting materials and deposited on a substrate made of electrically insulating materials, its manufacture and its use
DE3433669A1 (en) * 1984-02-29 1985-08-29 Buchtal Gmbh, 8472 Schwarzenfeld AREA OF CERAMIC MOLDED BODY

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2859321A (en) * 1955-07-11 1958-11-04 Garaway Alexander Electric resistance heater
US2939807A (en) * 1956-06-29 1960-06-07 Thermway Ind Inc Method of making a heating panel
GB1159390A (en) * 1965-08-12 1969-07-23 Ritter Pfaudler Corp Electrical Terminals and method of making the same
US3798419A (en) * 1973-03-12 1974-03-19 Gould Inc Electrical surface heating assembly
US4468557A (en) * 1983-02-03 1984-08-28 Bylin Heating Systems, Inc. Conformable electric heating apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1883914U (en) * 1963-03-07 1963-12-05 Siemens Elektrogeraete Gmbh FLAT-SHAPED RADIATOR.
DE2244157A1 (en) * 1972-09-08 1974-03-14 Ebenseer Betonwerke Gmbh SURFACE HEATING FOR COMPONENTS
DE2329424A1 (en) * 1973-06-08 1975-01-02 Siemens Ag Flat printed circuit heating element - comprises refractory plate sandwich
DE2534813A1 (en) * 1975-08-05 1977-02-10 Braun Ag Heating element for household appliances - has heating conductors on glass ceramic support electroplated to desired thickness
EP0112922A1 (en) * 1982-06-24 1984-07-11 Matsushita Electric Industrial Co., Ltd. Panel heater
DE3325204A1 (en) * 1983-07-13 1985-01-24 Reimbold & Strick GmbH & Co, 5000 Köln Heating element made of electrically conducting materials and deposited on a substrate made of electrically insulating materials, its manufacture and its use
DE3433669A1 (en) * 1984-02-29 1985-08-29 Buchtal Gmbh, 8472 Schwarzenfeld AREA OF CERAMIC MOLDED BODY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710626A1 (en) * 1987-02-17 1988-08-25 Buchtal Gmbh ROOM HEATING ELEMENT CONSISTING OF A CERAMIC MOLDED BODY WITH AN ELECTRIC RESISTANT COATING, IN PARTICULAR IN THE FORM OF A CERAMIC PLATE

Also Published As

Publication number Publication date
EP0229351A1 (en) 1987-07-22
ATE44344T1 (en) 1989-07-15
ES2009778B3 (en) 1989-10-16
DE3664182D1 (en) 1989-08-03
EP0229351B1 (en) 1989-06-28

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee