DE2165696A1 - Slide fastener from monofilament - locking heads and rear reinforcing projections already formed on monofilament before winding - Google Patents

Slide fastener from monofilament - locking heads and rear reinforcing projections already formed on monofilament before winding

Info

Publication number
DE2165696A1
DE2165696A1 DE19712165696 DE2165696A DE2165696A1 DE 2165696 A1 DE2165696 A1 DE 2165696A1 DE 19712165696 DE19712165696 DE 19712165696 DE 2165696 A DE2165696 A DE 2165696A DE 2165696 A1 DE2165696 A1 DE 2165696A1
Authority
DE
Germany
Prior art keywords
monofilament
metal
arrangement
already formed
rear reinforcing
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.)
Pending
Application number
DE19712165696
Other languages
German (de)
Inventor
Calvin Eric Alcester Warwickshire Silverstone (Grossbritannien)
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.)
British Leyland Truck and Bus Div Ltd
Original Assignee
British Leyland Truck and Bus Div Ltd
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 British Leyland Truck and Bus Div Ltd filed Critical British Leyland Truck and Bus Div Ltd
Publication of DE2165696A1 publication Critical patent/DE2165696A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
    • C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
    • C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/12—Metallic interlayers
    • C04B2237/123—Metallic interlayers based on iron group metals, e.g. steel
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/40—Metallic
    • C04B2237/403—Refractory metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

In the mfr. of slide fasteners from monofilament, locking heads and rear reinforcing projections are already formed on the monofilament before it is wound on to a former to take up its helical configuration, and it is so wound that the connecting links overlap when viewed in a projection in the fastener plane.

Description

Verfahren zum Löten bzw. Hartlöten von Keramik an Metall. Process for soldering or brazing ceramic to metal.

Die Erfindung betrifft ein Verfahren zum Löten bzw. Hartlöten von von Keramik an Metall.The invention relates to a method for soldering or brazing from ceramics to metal.

Beim Löten bzw. Hartlöten von Keramik an Metall besteht das Problem, daß die jeweiligen-Eoeffizienten der thermischen Expansion weitgehend verschieden sind. Wenn ein hartgelötetes Bau-teil aus Keramik und Metall von der Löttemperatur abkühlt, entstehen starke thermische Spannungen, die ausreichen, die Bindung zu unterbrechen. Typische Koeffizienten einer linearen Expansion bzw. Ausweitung von für technische Zweclce geeigneter Keramik liegen im Bereich (1-5)x10 6/ ° C, und die Roeffizienten der relevanten Metalle liegen im Bereich (13-18)x 10-6/° C.When soldering or brazing ceramics to metal there is the problem that the respective coefficients of thermal expansion are largely different are. When a brazed component made of ceramic and metal from the brazing temperature cools down, strong thermal stresses arise, which are sufficient for the bond to develop interrupt. Typical coefficients of a linear expansion of Ceramics suitable for technical purposes are in the range (1-5) x10 6 / ° C, and the coefficients of the relevant metals are in the range (13-18) x 10-6 / ° C.

Es ist Aufgabe der vorliegenden Erfindung, die genannten thermischen Spannungen auf annehmbare Werte zu reduzieren.It is the object of the present invention to provide the thermal Reduce tension to acceptable levels.

Zu diesem Zweck schlägt die Erfindung ein Verfahren zum Löten bzw. Hartlöten von Keramik an Metall vor, wobei eine verhältnismässig weiche Schicht eines wärmebeständigen Materials zwischen die Keramik und das Metall eingefügt bzw. eingelegt wird und sodann die Anordnung gelötet bzw. hartgelötet wird.For this purpose, the invention proposes a method for soldering or Brazing ceramic to metal before, with a relatively soft layer a heat-resistant material inserted between the ceramic and the metal or is inserted and then the arrangement is soldered or brazed.

Die Zwischenschicht kann auf verschiedene Weise hergestellt werden und kann beispielsweise entweder eine verach;I1nio Metalllegierung, wie sie unter der Bezeichnung RETIMET von der Firma Dunlop Company Limited hergestellt wird, oder ein im Handel durch die Firma Heurty Limited erhältliclter Nickelfilz (nickel felt ) sein. Diese Materialien gestatten die zufriedenstellende Anwendung des erfindungsgemäßen Verfahrens unter Bedingungen, in denen niedrige äußere Spannungen an die gelöteten bzw. hartgelöteten Konstruktionen angreifen, z B. beim Aufbau der Verbrennungskammer einer Gas-Turbinen Maschine.The intermediate layer can be produced in various ways and can, for example, either be a contemptible metal alloy, such as those listed below the name RETIMET is manufactured by Dunlop Company Limited, or a nickel felt commercially available from Heurty Limited ) be. These materials allow the invention to be used satisfactorily Process under conditions where low external stresses are applied to the soldered attack or brazed structures, e.g. when building the combustion chamber a gas turbine machine.

Eine hartgelötete Keramik-Metall-Anordnung, die nach dem erfindungsgemäßen Verfahren hergestellt wurde, ist in der Figur gezeigt, und zwar in einer Teilansicht im Schnitt.A brazed ceramic-metal assembly made according to the invention Method was produced is shown in the figure, namely in a partial view on average.

Eine wärmebeständige Metallkomponente A und eine Ker'-ti LkIomponente B sind durch eine Zwischenschicht C voneinandeL getrennt, die aus einem weichen, wärmebeständigen Metall niedriger Dichte besteht, wie beispielsweise eine Metallegierung oder ein Nickelfilz.A heat-resistant metal component A and a Ker'-ti LkIomponente B are separated from each other by an intermediate layer C made of a soft, heat-resistant, low-density metal, such as a metal alloy or a nickel felt.

Die Anordnung wird an den beiden Stellen D und E hartgelötet. -PatentansprücheThe arrangement is brazed at the two points D and E. -Patent claims

Claims (6)

Patentansprüche 1. Verfahren zum Löten bzw. Hartlöten von Keramik an Metall, dadurch gekennzeichnet, daß eine verhältnismässig weiche Schicht (C) eines wärmebeständigen Materials zwischen die Keramik (B) und das Metall (A) gelegt wird und die Anordnung dann gelötet bzw. hartgelötet wird. Claims 1. A method for soldering or brazing ceramics on metal, characterized in that a relatively soft layer (C) of a heat-resistant material placed between the ceramic (B) and the metal (A) and the assembly is then soldered or brazed. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Zwischenschicht (C) eine verschäumte Metallegierung verwendet wird.2. The method according to claim 1, characterized in that as an intermediate layer (C) a foamed metal alloy is used. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Zwischenschicht (C) ein Nickelfilz verwendet wird.3. The method according to claim 1, characterized in that as an intermediate layer (C) a nickel felt is used. 4. Gelötete bzw. hartgelötete Keramik-Metall-Anordnung, dadurch gekennzeichnet, daß die Anordnung nach dem Verfahren nach Anspruch 1 hergestellt wird.4. Soldered or brazed ceramic-metal arrangement, characterized in that that the arrangement is produced by the method according to claim 1. 5. Gelötete bzw. hartgelötete Keramik-Metall-Anordnung, dadurch gekennzeichnet, daß die Anordnung nach dem Verfahren ren nach Anspruch 2 hergestellt wird.5. Soldered or brazed ceramic-metal arrangement, characterized in that that the arrangement according to the method Ren according to claim 2 is produced. 6. Gelötet ozw, hartgelötete Keramik-Metall-Anordnung, dadurch gekennzeichnet, daß die Anordnung nach dem Verfahren nach Anspruch 3 hergestellt wird.6. Soldered ozw, brazed ceramic-metal arrangement, characterized in that that the arrangement is produced by the method according to claim 3. LeerseiteBlank page
DE19712165696 1971-01-20 1971-12-30 Slide fastener from monofilament - locking heads and rear reinforcing projections already formed on monofilament before winding Pending DE2165696A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB277471 1971-01-20

Publications (1)

Publication Number Publication Date
DE2165696A1 true DE2165696A1 (en) 1972-07-27

Family

ID=9745651

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712165696 Pending DE2165696A1 (en) 1971-01-20 1971-12-30 Slide fastener from monofilament - locking heads and rear reinforcing projections already formed on monofilament before winding

Country Status (2)

Country Link
DE (1) DE2165696A1 (en)
IT (1) IT948145B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391974A1 (en) * 1976-04-05 1978-12-22 Brunswick Corp Composite ceramic-metal laminate - with intermediate low modulus, low density material absorbing thermal deformations
EP0111989A1 (en) * 1982-12-03 1984-06-27 Ngk Insulators, Ltd. An engine part having a ceramics member and a metallic member joined together
EP0164537A2 (en) * 1984-06-14 1985-12-18 Klöckner-Humboldt-Deutz Aktiengesellschaft Joining of highly wear-resistant plates, especially ceramic plates, to a support to be protected against wear
EP0283308A1 (en) * 1987-03-20 1988-09-21 Ngk Insulators, Ltd. Composite jointed bodies

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391974A1 (en) * 1976-04-05 1978-12-22 Brunswick Corp Composite ceramic-metal laminate - with intermediate low modulus, low density material absorbing thermal deformations
EP0111989A1 (en) * 1982-12-03 1984-06-27 Ngk Insulators, Ltd. An engine part having a ceramics member and a metallic member joined together
EP0164537A2 (en) * 1984-06-14 1985-12-18 Klöckner-Humboldt-Deutz Aktiengesellschaft Joining of highly wear-resistant plates, especially ceramic plates, to a support to be protected against wear
EP0164537A3 (en) * 1984-06-14 1987-02-04 Klockner-Humboldt-Deutz Aktiengesellschaft Joining of highly wear-resistant plates, especially ceramic plates, to a support to be protected against wear
EP0283308A1 (en) * 1987-03-20 1988-09-21 Ngk Insulators, Ltd. Composite jointed bodies
US4865896A (en) * 1987-03-20 1989-09-12 Ngk Insulators, Ltd. Composite joined bodies including an intermediate member having a honeycomb structure

Also Published As

Publication number Publication date
IT948145B (en) 1973-05-30

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