DE946307C - Process for bonding metals with the help of thin metal foils provided with adhesive on both sides - Google Patents

Process for bonding metals with the help of thin metal foils provided with adhesive on both sides

Info

Publication number
DE946307C
DE946307C DEJ7187A DEJ0007187A DE946307C DE 946307 C DE946307 C DE 946307C DE J7187 A DEJ7187 A DE J7187A DE J0007187 A DEJ0007187 A DE J0007187A DE 946307 C DE946307 C DE 946307C
Authority
DE
Germany
Prior art keywords
adhesive
sides
thin metal
metal foils
help
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
DEJ7187A
Other languages
German (de)
Inventor
Helmut Jedilicka
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEJ7187A priority Critical patent/DE946307C/en
Application granted granted Critical
Publication of DE946307C publication Critical patent/DE946307C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22Plastics; Metallised plastics
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/30Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/35Heat-activated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

AUSGEGEBEN AM 26. JULI 1956ISSUED JULY 26, 1956

/ 7187 IVa/ 22 i / 7187 IVa / 22 i

Gegenstand der Erfindung ist ein Verfahren zur Verklebung von Metallen mit Hilfe von beiderseitig mit Klebstoff versehenen dünnen Metallfolien. Bei Verwendung der bekannten Klebfolien, deren Träger aus Eisen- oder Aluminiumfolien besteht, ergeben sich in der Klebfuge insgesamt vier Klebflächen, deren Verminderung erwünscht ist. Außerdem zeigen Versuche mit neuerem Metallkleber, daß bei der Beanspruchung solcher Klebstellen gerne Metallbruch eintritt. Der Klebstoff ist also noch höher zu beanspruchen, als das Metall. Dies legt nahe, die Klebfolie zu durchlöchern, um eine durchgehende Klebstoffschicht in der Klebfuge zu erhalten..The invention relates to a method for bonding metals with the aid of both sides thin metal foils provided with adhesive. When using the known adhesive films, whose carrier consists of iron or aluminum foils, there are a total of four in the adhesive joint Adhesive surfaces, the reduction of which is desired. In addition, experiments with newer metal adhesives show that when such joints are stressed, metal breakage tends to occur. The glue is thus to be stressed even higher than the metal. This suggests perforating the adhesive sheet in order to to get a continuous adhesive layer in the glue joint ..

Solche Lochfolien oder sogar Drahtgeflechte sind nun nicht nur erheblich teurer als einfache Metallfolien, sie ergeben auch Schwierigkeiten bei der Beschichtung. Dies um so mehr, je größer die Löcher sind; andererseits ist eine großflächige Berührung der ursprünglich getrennten Klebstoffschichten erwünscht. Die Beseitigung dieser Schwierigkeiten wird erfindungsgemäß dadurch erreicht, daß man eine Klebfolie mit einem Träger aus leicht schmelzbarem Metall verwendet und an der Klebstelle so weit erhitzt, daß ein Schmelzen des Metalls an der Klebstelle erfolgt. Als Trägerstoff wird beispielsweise eine dünne Metallfolie aus Zinn oder Zinnlegierung wie Sn-Pb verwendet. DieSuch perforated foils or even wire meshes are not only considerably more expensive than simple metal foils, they also give rise to coating difficulties. All the more so, the larger it is Holes are; on the other hand, there is extensive contact between the originally separated adhesive layers he wishes. The elimination of these difficulties is achieved according to the invention by that one uses an adhesive film with a carrier made of easily fusible metal and on the bond point is heated to such an extent that the metal melts at the bond point. As a carrier For example, a thin metal foil made of tin or tin alloy such as Sn-Pb is used. the

beiderseits mit einem wärmehäftenden Klebstoff wie Kunstharz beschichtete Metallfolie wirdnun in üblicher Weise trocken zwischen die zu verklebenden Flächen gelegt und der Wärmebehandlung, z. B. im Ofen oder der elektrischen Widerstands-, Induktions- oder Hochfrequenzheizung ausgesetzt. Dabei schmilzt zuerst der beiderseits der Metallfolie aufgetragene Klebstoff und dann die z. B. aus Zinn bestehende Metallfolie. Das geschmolzene Zinn bildet in dem zunächst noch flüssigen Klebstoff wie Kunstharz kleine Kügelchen oder Scheibchen bzw. eine stark durchlochte Folie, die in der nun bei weiterer Erwärmung härtenden Klebstoffschicht eingeschlossen· werden. Die ursprünglich getrennten Klebstoffschichten der Klebfolie sind damit in der Klebfuge vereinigt.on both sides with a heat-setting adhesive Metal foil coated like synthetic resin is now dry in the usual way between the to be bonded Placed surfaces and the heat treatment, z. B. in the furnace or the electrical resistance, Exposed to induction or high frequency heating. In doing so, the one on both sides of the metal foil melts first applied adhesive and then the z. B. made of tin metal foil. The melted one Tin forms small spheres or in the initially still liquid adhesive such as synthetic resin Disc or a heavily perforated film, which is now hardened in the Adhesive layer can be included. The originally separate adhesive layers of the adhesive film are thus united in the adhesive joint.

Als Klebstoffe werden für dieses Verfahren vorzugsweise Epoxyd- bzw. Äthoxylinhäize oder Mischungen dieser mit anderen Harzen vorgeschlagen. Die Beschichtung erfolgt dabei z. B. mittels dem bekannten Kunststoff-Spritzverfahren oder durch Aufstäuben eines feinen. Harzpulvers auf die vorher oder nachher erwärmte Metallfolie. Vorteilhafterweise kann das Harz auch nach einer Behandlung in Alkoholen z. B. in Methanol, in der es pastenförmig wird, mittels Waken, Messer od. dgl. in dünner Schicht auf die Metallfolie aufgetragen und die verhältnismäßig geringe Lösungsmittel-Beimengung durch leichte Wärmebehandlung ausgetrieben werden. ■The adhesives used for this process are preferably epoxy or ethoxylic resins or Mixtures of these with other resins are suggested. The coating takes place z. B. by means of the known plastic injection molding process or by dusting a fine. Resin powder on the metal foil heated before or after. Advantageously, the resin can also after a Treatment in alcohols e.g. B. in methanol, in which it becomes pasty, by means of wakes, knives or the like. Applied in a thin layer to the metal foil and the relatively low solvent admixture due to light heat treatment be driven out. ■

Die Verwendung anderer Klebstoffe auf der Basis der Polyesterharze, Polyvinylformal oder -butyral, Polyvinylacetale, Aminoplaste, Silikone usw., wie auch allgemein die der sogenannten Zwei1 komponenten-Klebstoffe, bei denen mindestens zwei Substanzen, die zunächst getrennt gehalten werden, bei ihrer Vereinigung in Reaktion kommen und abbinden, liegt im Rahmen dieser Erfindung. Es können auch allerdünnste Metallfolien z. B. unter 0,01 mm Stärke als Trägerstoff benutzt werden.The use of other adhesives based on polyester resins, polyvinyl formal or -butyral, polyvinyl acetals, amino resins, silicones, etc., as well as generally, the so-called two-component adhesives 1, in which at least two substances which are initially kept separate, at their union come into reaction and set is within the scope of this invention. It can also use the thinnest metal foils such. B. be used less than 0.01 mm thickness as a carrier.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Verfahren zur Verklebung von Metallen mit Hilfe von beiderseitig mit Klebstoff versehenen dünnen Metallfolien, dadurch gekennzeichnet, daß man eine Klebfolie mit einem Träger aus leicht schmelzbarem Metall verwendet und ander Klebstelle so weit erhitzt, daß ein Schmelzen des Metalls an der Klebstelle erfolgt. * Process for bonding metals with the aid of thin metal foils provided with adhesive on both sides, characterized in that an adhesive film with a carrier made of easily meltable metal is used and heated at the adhesive point to such an extent that the metal melts at the adhesive point. * In Betracht gezogene Druckschriften:Considered publications: USA.-Patentschrift Nr. 2 576 148;U.S. Patent No. 2,576,148; Bezeichnungen der iBegriffe Klebstoffe, Klebstoffverarbeitung nach DIN-Entwurf 16921, Febr. 1953;' Zeitschrift »Kunststoffe«, 1953, Heft 4, S. 153 bis 156.Designations of the terms adhesives, adhesive processing according to DIN draft 16921, February 1953; ' "Kunststoffe" magazine, 1953, issue 4, p. 153 bis 156. ©609565 7.56© 609565 7.56
DEJ7187A 1953-04-28 1953-04-28 Process for bonding metals with the help of thin metal foils provided with adhesive on both sides Expired DE946307C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ7187A DE946307C (en) 1953-04-28 1953-04-28 Process for bonding metals with the help of thin metal foils provided with adhesive on both sides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ7187A DE946307C (en) 1953-04-28 1953-04-28 Process for bonding metals with the help of thin metal foils provided with adhesive on both sides

Publications (1)

Publication Number Publication Date
DE946307C true DE946307C (en) 1956-07-26

Family

ID=7198580

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ7187A Expired DE946307C (en) 1953-04-28 1953-04-28 Process for bonding metals with the help of thin metal foils provided with adhesive on both sides

Country Status (1)

Country Link
DE (1) DE946307C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576148A (en) * 1950-01-12 1951-11-27 Ind Tape Corp Adhesive tape

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576148A (en) * 1950-01-12 1951-11-27 Ind Tape Corp Adhesive tape

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