DE876526C - Method of operating a wire enamelling oven - Google Patents

Method of operating a wire enamelling oven

Info

Publication number
DE876526C
DE876526C DEP12646A DEP0012646A DE876526C DE 876526 C DE876526 C DE 876526C DE P12646 A DEP12646 A DE P12646A DE P0012646 A DEP0012646 A DE P0012646A DE 876526 C DE876526 C DE 876526C
Authority
DE
Germany
Prior art keywords
operating
wire
chambers
air
furnace
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
DEP12646A
Other languages
German (de)
Inventor
Harry Dr Phil Heering
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DEP12646A priority Critical patent/DE876526C/en
Application granted granted Critical
Publication of DE876526C publication Critical patent/DE876526C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases

Landscapes

  • Coating Apparatus (AREA)

Description

Zum Einbrennen von Lacküberzügen auf Drähten sind Ofen mit waagerechter oder mit lotrechter Drahtführung bekannt. Letztere haben neben einer Reihe von Vorzügen den. nicht unerheblichen Nachteil größeren Energiebedarfs, da die obergelegene Austrittsöffnung für den Draht nicht vollkommen abgedichtet. werden kann und somit eine beträchtliche Menge Warmluft durch die Schornstein=' wirkung des, Ofenschachtes nach oben entweicht.For baking lacquer coatings on wires are ovens with horizontal or known with a perpendicular wire guide. The latter have a number of advantages the. not inconsiderable disadvantage of greater energy requirements, since the outlet opening at the top not completely sealed for the wire. can be and thus a considerable Amount of warm air escapes through the chimney = 'effect of the stove shaft upwards.

Dieser Nachteil kann dadurch vermieden werden, daß als Abschluß des Ofenschachtes nach oben; eine Labyrinthdiohtung in Form einer Mehrzahl hintereinandiergeschälfieter Luftkammern vorgesehen wird. Solche labyrinthartigen Abdichtungen der Ein- ünd Austrittsöffnung von industriellen Ofen sind bereits bekannt.This disadvantage can be avoided in that as the conclusion of the Furnace shaft upwards; a Labyrinthdiohtung in the form of a plurality of consecutive peelers Air chambers is provided. Such labyrinth-like seals of the inlet and outlet openings of industrial furnaces are already known.

In der Zeichnung ist ein Ausführungsbeispiel eines stehenden Lackdrahtofens mit einem oberen Abschluß des Ofenschachtes durch eine Labyrinthdichtung dargestellt: über dem Ofenschacht i, -in dem zentrisch der lacküberzogene Draht 2 geführt wird., ist eine Labyrinthdichtung vorgesehen, die aus einer Mehrzahl von Luftkammern 3 besteht.The drawing shows an embodiment of an upright enamelled wire oven with an upper end of the furnace shaft through a labyrinth seal: over the furnace shaft i, -in which the lacquer-coated wire 2 is guided centrally., a labyrinth seal is provided, which consists of a plurality of air chambers 3 consists.

Die Offnun@gen der Luftkammern, durch die der Draht hindurchgeführt wird, können verstellbar sein; um sie an verschiedene Drahtdurchmesser anpassen zu können und die neben dem Draht durchtretende Luftmenge möglichst zu begrenzen. Gemäß der !Erfindung kann nun die abdichtende Wirkung des Labyrinthes weiter noch dadurch gesteigert werden, daß in eine oder mehrere der unteren, dem Ofen benachbart liegenden Kammern vorgewärmte Luft eingedrückt wird, um eine Abkühlung dies Ofenraumes möglichst zu vermeiden, während in' eine oder mehrere der oberen Kammern Luft von Raumtemperatur eingedrückt wird. Dadurch wird: erreicht, daß ein Luftpolster, das keine Heizenergie verbraucht, der unter Druck stehenden Warmluft vorgelagert wird und deren Austritt aus der Dichtung verhindert.The openings of the air chambers through which the wire is passed will can be adjustable; to adapt them to different wire diameters and to limit the amount of air passing through next to the wire as much as possible. According to the invention, the sealing effect of the labyrinth can now be even further can be increased by placing one or more of the lower ones adjacent to the furnace lying chambers preheated air is pressed in to cool the furnace chamber Avoid as much as possible while in 'one or more of the upper chambers air from Room temperature is depressed. This: achieves that a cushion of air that no heating energy is consumed, the pressurized warm air is stored upstream and prevents them from leaking out of the seal.

Claims (1)

PATENTANSPRUCH: Verfahren zum Betrieb eines Drahtlackierofens mit lotrechter Drahtfiülhrung, bei dem als Abschluß des Ofenschachtes nach oben. eine Labyrinthdichtung in Form einer Mehrzahl hintereinanderbesohalteter Luftkammern. dient, dadurch gekennzeichnet, daß in eine oder mehrere der unteren Kammern vorgewäirrhte Druckluft und in eine oder mehrere der oberen Kammern Druckluft von Raumtemperaturen eingeleitet wird. Angezogene Druckschriften Deutsche Patentschriften Nr. 639 187, 696 215; schweizerische Patentschrift Nr. 221 858.PATENT CLAIM: Process for operating a wire enamelling furnace with vertical wire guide, in which as the conclusion of the furnace shaft upwards. one Labyrinth seal in the form of a plurality of air chambers held one behind the other. serves, characterized in that vorgewäirrhte in one or more of the lower chambers Compressed air and, in one or more of the upper chambers, compressed air at room temperatures is initiated. Cited publications German patent specifications No. 639 187, 696 215; Swiss patent specification No. 221 858.
DEP12646A 1948-10-02 1948-10-02 Method of operating a wire enamelling oven Expired DE876526C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP12646A DE876526C (en) 1948-10-02 1948-10-02 Method of operating a wire enamelling oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP12646A DE876526C (en) 1948-10-02 1948-10-02 Method of operating a wire enamelling oven

Publications (1)

Publication Number Publication Date
DE876526C true DE876526C (en) 1953-05-15

Family

ID=7364167

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP12646A Expired DE876526C (en) 1948-10-02 1948-10-02 Method of operating a wire enamelling oven

Country Status (1)

Country Link
DE (1) DE876526C (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE639187C (en) * 1936-11-30 Bbc Brown Boveri & Cie Process to reduce gas losses at the entry and exit gaps of sheet normalizing furnaces
DE696215C (en) * 1936-04-16 1940-09-14 Theodor Stassinet Dr Ing Device to avoid gas losses in industrial ovens
CH221858A (en) * 1940-12-30 1942-06-30 Bbc Brown Boveri & Cie Installation in drying rooms through which air-permeable dry material passes.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE639187C (en) * 1936-11-30 Bbc Brown Boveri & Cie Process to reduce gas losses at the entry and exit gaps of sheet normalizing furnaces
DE696215C (en) * 1936-04-16 1940-09-14 Theodor Stassinet Dr Ing Device to avoid gas losses in industrial ovens
CH221858A (en) * 1940-12-30 1942-06-30 Bbc Brown Boveri & Cie Installation in drying rooms through which air-permeable dry material passes.

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