DE2800121A1 - Metal plate joining system - using enamel coatings fused to joint by firing - Google Patents

Metal plate joining system - using enamel coatings fused to joint by firing

Info

Publication number
DE2800121A1
DE2800121A1 DE19782800121 DE2800121A DE2800121A1 DE 2800121 A1 DE2800121 A1 DE 2800121A1 DE 19782800121 DE19782800121 DE 19782800121 DE 2800121 A DE2800121 A DE 2800121A DE 2800121 A1 DE2800121 A1 DE 2800121A1
Authority
DE
Germany
Prior art keywords
enamel
firing
joint
plates
metal plate
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Withdrawn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
DE19782800121
Other languages
German (de)
Inventor
Waldburg Dr Eder-Milchgiesser
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg 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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Priority to DE19782800121 priority Critical patent/DE2800121A1/en
Publication of DE2800121A1 publication Critical patent/DE2800121A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/32—Radiation-absorbing paints
    • 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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D15/00—Joining enamelled articles to other enamelled articles by processes involving an enamelling step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Metallurgy (AREA)
  • Wood Science & Technology (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Abstract

Metal plates to be joined to each other, e.g. to produce absorber plates with parallel passages for solar heat collectors, are first given an enamel coating, at least along the areas where they are to be joined. After the enamel layer has been applied, they are fired and joined together. This produces a durable and tight joint, without the added susceptibility to corrosion of welded joints or the risk of leakage after long-term exposure to temperature fluctuations like bonded joints.

Description

MASCHINENFABRIK AUGSBURG-NÜRNBERG
AktiengesellschaftMASCHINENFABRIK AUGSBURG-NÜRNBERG
Corporation

München, den 28. Dezember 1977Munich, December 28, 1977

Verfahren zur Verbindung von MetallgegenständenMethod of joining metal objects

Die Erfindung bezieht sich auf ein Verfahren zur Verbindung von Metallgegenständen, insbesondere von Metallplatten.The invention relates to a method for joining metal objects, in particular metal plates.

Auf vielen technischen Gebieten werden Metallteile, die miteinander verbunden werden müssen, entweder zusammengeschraubt, verklebt oder verschweißt. In manchen Fällen wie z.B. bei Absorberplatinen für Sonnenkollektoren, die aus profilierten miteinander verbundenen Platten bestehen, ist eine dichte Verbindung notwendig, die entweder durch eine Verklebung oder Verschweißen hergestellt werden muß.In many technical fields, metal parts that have to be connected are either screwed together, glued or welded. In some cases, such as with absorber boards for solar collectors, which are made of profiled interconnected panels, a tight connection is necessary, either by a Bonding or welding must be made.

Diese Verfahren haben jedoch den Nachteil, daß die Verklebung bei hohen Temperaturschwankungen ausgesetzten Bauteilen mit der Zeit undicht wird und verschweißte Fügestellen eine erhöhte Korrosionsanfälligkeit erfahren.However, these methods have the disadvantage that the adhesive bond with components exposed to high temperature fluctuations leaks over time and welded joints are more susceptible to corrosion.

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Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu entwickeln, durch das Metallteile ungeachtet höherer Temperaturschwankungen korrosionssicher verbunden sind.The invention is based on the object of developing a method of the type mentioned at the beginning by means of which metal parts are connected in a corrosion-proof manner regardless of higher temperature fluctuations.

Die Aufgabe ist erfindungsgemäß dadurch gelöst, daß die Metallteile zumindest an den Fügestellen emailliert und im Emailliervorgang miteinander verbunden werden.The object is achieved in that the Metal parts are enamelled at least at the joints and connected to one another in the enamelling process.

Hierdurch wird eine korrosionsfeste Verbindung zwischen Metallteilen, wie aus Stahl, Aluminium und ähnlichem, erreicht, die hohen Temperaturschwankungen auch bei unterschiedlichen Wärmedehnungen der in Verbindung stehenden Materialien standhält.This creates a corrosion-resistant connection between metal parts such as steel, aluminum and the like, achieved the high temperature fluctuations even with different thermal expansions of the related Materials.

Dieses Verfahren ist außerdem geeignet, bei ohnehin zu emaillierenden Bauteilen die notwendige Verbindung im gleichen Emailliervorgang vorzunehmen, ohne daß dabei ein weiterer Arbeitsgang notwendig ist.This method is also suitable for the necessary connection in the case of components to be enamelled anyway To carry out the enamelling process without the need for a further operation.

Dieses Verfahren kann insbesondere bei Sonnenkollektor-Absorbern angewandt werden, bei denen die den Absorber bildenden Metallplatten in eine wässerige GlaspulVerlosung kurz eingetaucht und, nachdem die angeschlämmte Masse angetrocknet ist in einem Emaillierofen bei etwa 1.0000C aufeinandergelegt, ge-This method can be employed in particular in solar collector absorbers in which the absorber forming metal plates in an aqueous glass powder solution briefly immersed and, after the angeschlämmte mass is dry superposed in an enameling oven at about 1000 0 C, Ge

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brannt werden. In der Schmelzphase während des Brennvorganges verbinden sich die Emaillierschichten zwischen den aneinanderliegenden Plattenflächen, so daß nach dem Erstarren des Emaille eine dichte Verbindung entsteht, die die Platten zusammenhält und die durch Sicken oder Wellen der Bleche gebildeten Kanäle gegeneinander und gegen die Atmosphäre abdichtet.to be burned. In the melting phase during the firing process connect the enamel layers between the adjacent plate surfaces, so that after the solidification of the Enamel creates a tight connection, which holds the plates together and which is created by corrugations or corrugations of the sheets channels formed against each other and seals against the atmosphere.

In der Zeichnung ist eine derartige Absorberplatine im Schnitt schematisch dargestellt (Fig. 1) bzw. in einer Abwandlung dieser Platine (Fig. 2).In the drawing, such an absorber board is shown schematically in section (Fig. 1) or in a Modification of this board (Fig. 2).

Sie besteht aus zwei mit Sicken 10 bzw. 10' ausgerüsteten Platten 11 und 12 aus Aluminium, die beiderseitig mit Emailleschichten 13 überzogen sind. Die zwischen den ebenen Stellen der beiden Platten 11 und 12 befindlichen Emailleschichten sind während des Brennvorganges zu einer gemeinsamen Schicht 14 zusammengeschmolzen, die die Verbindung der beiden Platten 11 und 12 herstellt und gleichzeitig für eine sichere Abdichtung der durch die Sicken 10 und 10' gebildeten Strömungskanäle 15 sorgt. Die Emaillebeschichtung kann entweder durch Eintauchen des Gegenstandes in die wässerige Pulverlösung oder elektrostatisch oder elektrophonetisch durchgeführt werden.It consists of two equipped with beads 10 and 10 ' Plates 11 and 12 made of aluminum, both sides with layers of enamel 13 are coated. The enamel layers located between the flat points of the two plates 11 and 12 are fused together during the firing process to form a common layer 14, which connects the two plates 11 and 12 produces and at the same time for a secure sealing of the formed by the beads 10 and 10 ' Flow channels 15 provides. The enamel coating can either by immersing the object in the aqueous powder solution or electrostatically or electrophonetically be performed.

7.17407.1740

28.12.1977 - 6 -December 28, 1977 - 6 -

909828/0224909828/0224

Wie in Fig. 1 dargestellt, können zwei gerichtete Bleche zusammengefügt werden, so daß ein bezüglich einer Mittelebene symmetrisches Bauteil entsteht, oder es können ein gerichtetes und ein ebenes Blech in entsprechender Weise zusammengefügt werden (Fig. 2).As shown in Fig. 1, two directional sheets can be joined together, so that a symmetrical with respect to a mid-plane component is produced, or it can be a directed and a flat sheet are assembled in a similar manner (Fig. 2).

7.1740
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Claims (1)

MASCHINENFABRIK AUGSBURG-NÜRNBERG .Q MASCHINENFABRIK AUGSBURG-NÜRNBERG . Q Aktiengesellschaft 2 O U Q I 21Aktiengesellschaft 2 O U Q I 21 München, den 28. Dezember 1977Munich, December 28, 1977 PatentansprücheClaims j 1 / Verfahren zur Verbindung von Metallgegenständen, insbesondere Metallplatten, dadurch gekennzeichnet, daß die Metallteile (11 und 12) zumindest an den Fügestellen emailliert und im Emailliervorgang miteinander verbunden werden.j 1 / method of joining metal objects, in particular Metal plates, characterized in that the metal parts (11 and 12) at least at the joints enamelled and connected to one another in the enamelling process. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Metallteile (11 und 12) vollständig mit Emaille (13) überzogen werden.2. The method according to claim 1, characterized in that the metal parts (11 and 12) completely with enamel (13) be coated. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Metallteile (11 und 12) nach dem Aufbringen und Antrocknen der Emailschicht (13, 14) aneindergefügt gebrannt werden.3. The method according to claim 1 or 2, characterized in that the metal parts (11 and 12) after application and Drying of the enamel layer (13, 14) are fired attached to one another. 7.1740 - 2 -7.1740 - 2 - 909828/0224909828/0224 4. Anwendung des Verfahrens nach einem der vorhergehenden Ansprüche, zur Herstellung von korrosionsfesten Absorberplatinen für Sonnenkollektoren.4. Application of the method according to one of the preceding Claims for the production of corrosion-resistant absorber boards for solar collectors. 5. Bauteil, das nach einem Verfahren gemäß einem der Ansprüche 1-3 zusammengefügt ist, dadurch gekennzeichnet, daß zwei gerichtete Platten bezüglich einer Mittelebene symmetrisch zusammengefügt sind.5. Component which is assembled according to a method according to any one of claims 1-3, characterized in that that two oriented plates are joined together symmetrically with respect to a median plane. 6. Bauteil, das nach einem Verfahren gemäß einem der Ansprüche 1-3 zusammengefügt ist, dadurch gekennzeichnet, daß eine profilierte und eine ebene Platte zusammengefügt sind.6. Component which is assembled according to a method according to any one of claims 1-3, characterized in that that a profiled and a flat plate are joined together. 28.12.1977 - 3 -12/28/1977 - 3 - 909828/0224909828/0224
DE19782800121 1978-01-03 1978-01-03 Metal plate joining system - using enamel coatings fused to joint by firing Withdrawn DE2800121A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782800121 DE2800121A1 (en) 1978-01-03 1978-01-03 Metal plate joining system - using enamel coatings fused to joint by firing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782800121 DE2800121A1 (en) 1978-01-03 1978-01-03 Metal plate joining system - using enamel coatings fused to joint by firing

Publications (1)

Publication Number Publication Date
DE2800121A1 true DE2800121A1 (en) 1979-07-12

Family

ID=6028891

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782800121 Withdrawn DE2800121A1 (en) 1978-01-03 1978-01-03 Metal plate joining system - using enamel coatings fused to joint by firing

Country Status (1)

Country Link
DE (1) DE2800121A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304211A1 (en) * 1993-02-12 1994-08-18 Balcke Duerr Ag Process for the pressure-tight connection of thin-walled objects made of metal
FR2811920A1 (en) * 2000-07-24 2002-01-25 Brandt Cooking STRUCTURE OF ENAMELLED SHEETS AND METHOD FOR MANUFACTURING SUCH A STRUCTURE
AT509018B1 (en) * 2009-10-29 2012-04-15 Dtec Gmbh FLAT ABSORBER

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304211A1 (en) * 1993-02-12 1994-08-18 Balcke Duerr Ag Process for the pressure-tight connection of thin-walled objects made of metal
FR2811920A1 (en) * 2000-07-24 2002-01-25 Brandt Cooking STRUCTURE OF ENAMELLED SHEETS AND METHOD FOR MANUFACTURING SUCH A STRUCTURE
EP1176229A1 (en) * 2000-07-24 2002-01-30 Brandt Cooking Enamelled metal sheets and process for the production of such a structure
AT509018B1 (en) * 2009-10-29 2012-04-15 Dtec Gmbh FLAT ABSORBER

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Legal Events

Date Code Title Description
OAM Search report available
OC Search report available
8127 New person/name/address of the applicant

Owner name: M.A.N. MASCHINENFABRIK AUGSBURG-NUERNBERG AG, 8000

8139 Disposal/non-payment of the annual fee