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DE927578C - Process for the production of sheet resistors - Google Patents

Process for the production of sheet resistors

Info

Publication number
DE927578C
DE927578C DEB16794A DEB0016794A DE927578C DE 927578 C DE927578 C DE 927578C DE B16794 A DEB16794 A DE B16794A DE B0016794 A DEB0016794 A DE B0016794A DE 927578 C DE927578 C DE 927578C
Authority
DE
Germany
Prior art keywords
layer
application
fire
production
takes place
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.)
Expired
Application number
DEB16794A
Other languages
German (de)
Inventor
Bernhard Dr Beyschlag
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.)
Bernhard Beyschlag Appbau O H
Original Assignee
Bernhard Beyschlag Appbau O H
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 Bernhard Beyschlag Appbau O H filed Critical Bernhard Beyschlag Appbau O H
Priority to DEB16794A priority Critical patent/DE927578C/en
Application granted granted Critical
Publication of DE927578C publication Critical patent/DE927578C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Surface Heating Bodies (AREA)

Description

Verfahren zur Herstellung von Schichtwiderständen Bei der Herstellung von Schichtwiderständen, die in bekannter Weise beispielsweise aus keramischen Tragkörpern bestehen, :auf denen sich eine; im thermischen Prozeß aufgebrachte, geeignete, elektrisch leitende Schicht befindet, wird im allgemeinen so verfahren, daß zunächst in einem gesonderten Herstellungsprozeß dieKeramikteile herges,telltw(erden. Diese Keramikteile werden in einem darauffodgenden Prozeß in b'11esonderen Öfen wieder erwärmt und beispielsweise gasförmibgen Kohlenwasserstoffen ausgesetzt, die unter dem Einfluß der Wärme zerfallen und frei werdenden Kohlenstoff an die Keramikteile abgeben.Method of manufacturing sheet resistors during manufacture of sheet resistors, which are made in a known manner, for example from ceramic support bodies insist: on which one is; applied in the thermal process, suitable, electrically Conductive layer is, the procedure is generally so that initially in one Separate manufacturing process, the ceramic parts are manufactured, telltw (ground. These ceramic parts are reheated in a subsequent process in special ovens and for example gaseous hydrocarbons exposed under the influence The heat decays and releases the released carbon to the ceramic parts.

Nach der Erfindung läßt sich dieses Verfahren dadurch erheblich verbilligen, daß das Aufbringen der leitenden Schicht während ides Brandes oder direkt :anschließend an (den Brand erfolgt, ohne daß die Teile erst völlig abkühlen. Es ist also gemäß der Erfindung möglich, die nach (dem Brennen durch das Abkühlen der Keramikteile verlorengehende Wärme für das Aufbringen der leitenden Schicht auszunutzen. Das Verfahren läßt sich besonders günstig ausführen, wenn man den Brennprozeß und (das Aufbringen der Schicht in einem kontinuierlichen Durch-laufverfahren vornimmt, so @daß (das Aufbringen oder leitenden. Schicht :in der Abkühlzone nach dem Brand erfolgen kann. Es ist auch möglich, (das Aufbringen der Schicht bei geeigneter Temperatur vor der Sinterung des Trägermaterials vorzunehmen, so @daß mit (der Sinterung ein Festbrennen (der leitenden Schicht erfolgt. Außerdem lassen sich gemäß der Erfindung, ganz besonders bei Anwendung eines kontinuierlichen Durchlaufverfahrens, gleichzeitig Schutzschichten für die Wilders.tandsschicht aufbringen, (die ohne weiteren nennenswerten Wärmeaufwand auf tder Schicht einbrennen oder eintrocknen können. Außerdem ist es möglich, auf das keramische Sintermaterial angeeigneten Stellen metaldiische oder elektrisch gut leitende Überzüge aufzubringen, die mit ,der Keramik, einsintern oder im Anschl@uß an den S@interungsprozeß einbrennen und zur Verstärkung der W(iiderstandsschicht an bestimmten gewollten Stellen dienen.According to the invention, this process can be made considerably cheaper, that the application of the conductive layer during the fire or directly: afterwards on (the fire takes place without the parts cooling down completely. So it is in accordance with of the invention possible after the firing by cooling the ceramic parts utilize lost heat for the application of the conductive layer. That Process can be carried out particularly favorably if the firing process and (the Applying the layer in a continuous through-flow process makes so @ that (the application or conductive. layer: take place in the cooling zone after the fire can. It is also possible (to apply the layer at a suitable temperature before sintering the carrier material, so that with (the sintering a Burning (of the conductive layer takes place. In addition, according to the invention, especially when using a continuous process, at the same time Protective layers for the Wilders.standsschicht, (those without bake or dry on the layer with further significant heat input can. It is also possible to be appropriated on the ceramic sintered material Make metallic or electrically conductive coatings to be applied with , the ceramic, sintered in or after the sintering process and serve to strengthen the resistance layer at certain desired points.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung von Schichtwiderständen auf Trägern aus Keramik oder ähnlichen isolierenden, hitzebeständigen Stoffen, mit thermisch aufgebrachter Schicht, dadurch gekennzeichnet, daß das Aufbringen der Schicht direkt im Anschluß an den Brand unter Ausnutzung der Brennwärme erfolgt. a.. Verfahren nach Anspruch i, dadurch gekennzeichnet, d@aß das thermische Aufbringen der Schicht in einem kontinuierlichen Durchlauf in der Abkühlzone nach dem Brand erfolgt. 3. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß das Aufbringen der Schicht vor der Sinterung bei geeigneter Temperati:r erfolgt. 4. Verfahren nach Anspruch i bis 3, dadurch gekennzeichnet, daß im gleichen P@rozeß Schutzschichten für die Widerstandsschicht aufgebracht werden. 5. Verfahren nach Anspruch i bis q., dadurch gekennzeichnet, daß an :geeigneter Stelle Metallisierungen oder elektrisch gut leitende überzüge aufgebracht werden.PATENT CLAIMS: i. Process for the production of sheet resistors on carriers made of ceramic or similar insulating, heat-resistant materials, with thermally applied layer, characterized in that the application of the Layer takes place directly after the fire using the heat of the fire. a .. The method according to claim i, characterized in that the thermal application the layer in one continuous pass in the cooling zone after firing he follows. 3. The method according to claim r, characterized in that the application the layer takes place before sintering at a suitable temperature. 4. Procedure according to Claims 1 to 3, characterized in that protective layers are used in the same process be applied for the resistance layer. 5. The method according to claim i to q., characterized in that: at a suitable point, metallizations or electrical highly conductive coatings can be applied.
DEB16794A 1951-09-18 1951-09-18 Process for the production of sheet resistors Expired DE927578C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB16794A DE927578C (en) 1951-09-18 1951-09-18 Process for the production of sheet resistors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB16794A DE927578C (en) 1951-09-18 1951-09-18 Process for the production of sheet resistors

Publications (1)

Publication Number Publication Date
DE927578C true DE927578C (en) 1955-05-12

Family

ID=6959056

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB16794A Expired DE927578C (en) 1951-09-18 1951-09-18 Process for the production of sheet resistors

Country Status (1)

Country Link
DE (1) DE927578C (en)

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