DE1121435B - Use of a three-component alloy consisting of copper-palladium-nickel as a hard solder to connect metal objects that are exposed to temperatures of 55 ° C and more - Google Patents

Use of a three-component alloy consisting of copper-palladium-nickel as a hard solder to connect metal objects that are exposed to temperatures of 55 ° C and more

Info

Publication number
DE1121435B
DE1121435B DEM39095A DEM0039095A DE1121435B DE 1121435 B DE1121435 B DE 1121435B DE M39095 A DEM39095 A DE M39095A DE M0039095 A DEM0039095 A DE M0039095A DE 1121435 B DE1121435 B DE 1121435B
Authority
DE
Germany
Prior art keywords
nickel
palladium
copper
temperatures
exposed
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
DEM39095A
Other languages
German (de)
Inventor
David Wade Rhys
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.)
Mond Nickel Co Ltd
Original Assignee
Mond Nickel Co 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
Priority claimed from GB30765/57A external-priority patent/GB838951A/en
Application filed by Mond Nickel Co Ltd filed Critical Mond Nickel Co Ltd
Publication of DE1121435B publication Critical patent/DE1121435B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/32Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
    • B23K35/322Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C a Pt-group metal as principal constituent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/30Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/302Cu as the principal constituent

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Products (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Description

Verwendung einer aus Kupfer-Palladium-Nickel bestehenden Dreistoff-Legierung als Hartlot zum Verbinden von Metallgegenständen, die Temperaturen von 550° C und mehr ausgesetzt sind Um Metallteile hart zu löten, die bei Temperaturen von mehr als 550 C beansprucht werden, muß man Lotlegierungen verwenden, die nicht nur gut fließen und ein entsprechendes Füllvermögea besitzen, sondern auch Verbindungen ergeben, die bei diesen Gebrauchstemperaturen ausreichende mechanische Eigenschaften aufweisen und von guter Zunderbeständigkeit sind. Bekannte, aus 1 bis 45 % Palladium, bis zu 3 % Nickel, Rest Kupfer bestehende Hartlote besitzen bei hohen Temperaturen keine ausreichende Zunderbeständigkeit, während die bekannten Hartlotlegierungen auf Basis Nickel-Palladium-Mangan zwar in der Hitze fest und beständig sind, sich jedoch nur mit Schwierigkeiten zu Drähten, Folien oder dergleichen Lotformen verarbeiten lassen. Für einen anderen Gebrauchszweck, nämlich für Dentallote, werden Legierungen mit 20 bis 600/c Palladium, etwa 150i0, Kupfer, Rest Nickel benutzt, z. B. zum Verlöten von Zahnprothesen aus nichtrostendem Stahl oder von Teilen aus Kobalt-Chrom-Wolfram-Legicrungen.Use of a three-component alloy consisting of copper-palladium-nickel as hard solder for joining metal objects, the temperatures of 550 ° C and more exposed To hard solder metal parts that are exposed to temperatures of more than 550 C, you have to use solder alloys that are not only good flow and have a corresponding filling capacity, but also connections result in sufficient mechanical properties at these temperatures of use and are of good resistance to scaling. Known, from 1 to 45% palladium, Up to 3% nickel, the remainder copper, have existing hard solders at high temperatures insufficient scaling resistance, while the known brazing alloys based on nickel-palladium-manganese although they are solid and stable in the heat however, it is difficult to process them into wires, foils or similar forms of solder permit. Alloys are used for another purpose, namely for dental solders with 20 to 600 / c palladium, about 150i0, copper, the remainder nickel used, z. B. for soldering of dentures made of stainless steel or of parts made of cobalt-chromium-tungsten alloys.

Gegenstand der Erfindung ist nun die Verwendung einer aus Kupfer-Palladium-Nickel bestehenden Dreistoff-Legierung mit 10 bis 560/0 Palladium, 7 0 bis 600/c Nickel, Rest 11 bis 69% Kupfer, mit der Maßgabe, daß die Zusammensetzung innerhalb des schraffierten Feldes des in der Zeichnung dargestellten Dreistoffsystems liegt, als Hartlot zum Verbinden von Metallgegenständen, die Temperaturen von 550° C und mehr ausgesetzt werden. The invention now relates to the use of a three-component alloy consisting of copper-palladium-nickel with 10 to 560/0 palladium, 7 0 to 600 / c nickel, the remainder 11 to 69% copper, with the proviso that the composition is within the The hatched field of the three-component system shown in the drawing is used as a hard solder for connecting metal objects that are exposed to temperatures of 550 ° C and more.

Dieser Bereich wird durch die die nachfolgenden Punkte verbindende Linie begrenzt: Punkt Palladium Nickel Kupfer 0,/o ;o 0, A 21 10 69 B 50 10 40 C 56 20 24 D 49 40 11 E 30 57 13 F 15 60 25 G 10 55 35 H 10 25 65 Besonders vorteilhaft ist die erfindungsgemäß zu verwendende Lotlegierung für das Hartlöten von Teilen, die aus bei hohen Temperaturen zunderbeständigen Nickellegierungen bzw. Stahllegierungen bestehen, z. B. aus Legierungen auf Basis Nickel oder Nickel-Kobalt mit mindestens 5% Chrom, die auch noch Eisen, Titan, Aluminium und Molybdän enthalten können. Als Beispiel für die Stahllegierungen seien weiterhin austenitische Chromstähle vom Typ 8% Chrom/8% Nickel genannt. Die Lotlegierungen nach der Erfindung werden mit besonderem Vorteil auch zum Verbinden kriechfester Nickel-Molybdän-Legierungen sowie von Wolfram und Molybdän verwendet. Dabei können die zu vereinigenden Teile aus gleichen oder auch verschiedenen Legierungen oder Metallen bestehen.This area is limited by the line connecting the following points: Point palladium nickel copper 0, / o; o 0, A 21 10 69 B 50 10 40 C 56 20 24 D 49 40 11 E 30 57 13 F 15 60 25 G 10 55 35 H 10 25 65 The solder alloy to be used according to the invention is particularly advantageous for the brazing of parts which consist of nickel alloys or steel alloys which are resistant to scaling at high temperatures, e.g. B. from alloys based on nickel or nickel-cobalt with at least 5% chromium, which can also contain iron, titanium, aluminum and molybdenum. As an example of the steel alloys, austenitic chromium steels of the 8% chromium / 8% nickel type are also mentioned. The solder alloys according to the invention are also used with particular advantage for joining creep-resistant nickel-molybdenum alloys and tungsten and molybdenum. The parts to be combined can consist of the same or different alloys or metals.

Zur Herstellung einer guten Lotverbindung ist es zweckmäßig, den auf den zu verbindenden Legierungen etwa befindlichen Oxydfilm zu entfernen, was beispielsweise durch Löten in Wasserstoffatmosphäre unter Verwendung eines aus Borax, Borsäure oder aus einer Mischung von Borax und Borsäure bestehenden Flußmittels geschehen kann.To produce a good solder connection, it is useful to use the to remove any oxide film from the alloys to be joined, for example by soldering in a hydrogen atmosphere using one made of borax, boric acid or a flux consisting of a mixture of borax and boric acid can.

Die erfindungsgemäß zu verwendenden Lotlegierungen sind von besonderer Dünnflüssigkeit, so daß sie nicht nur gut durch Öffnungen, Spalte und Löcher, deren Abmessungen in der Größenordnung von Kapillaren liegen, hindurchfließen, sondern auch große Öffnungen ausfüllen. Deshalb ist es nicht erforderlich, die zu verlötenden Oberflächen durch Bearbeiten genau passend zu machen.The solder alloys to be used according to the invention are special Thin liquid, so that it can not only pass through openings, gaps and holes, whose Dimensions on the order of Capillaries lie, flow through, but also fill in large openings. So it doesn't require that too to make soldering surfaces exactly matched by machining.

Ein weiterer Vorteil der Legierungen ist es, daß sie zum Hartlöten unter Vakuum besser geeignet sind als die bekannten Legierungen, da sie in ihrem Fließbereich eine geringere Neigung zum Verdampfen zeigen.Another advantage of the alloys is that they can be used for brazing under vacuum are more suitable than the known alloys because they are in their Show less tendency to evaporate.

Claims (1)

PATENTANSPRUCH. Verwendung einer aus Kupfer-Palladium-Nickel bestehenden Dreistoff-Legierung mit 10 bis 56% Palladium, 10 bis 60% Nickel, Rest 11 bis 69°%o Kupfer, mit der Maßgabe, daß die Zusammensetzung innerhalb des schraffierten Feldes des in der Zeichnung dargestellten Dreistoffsystems liegt, als Hartlot zum Verbinden von Metallgegenständen, die Temperaturen von 550°C und mehr ausgesetzt werden. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 684 186; britische Patentschrift Nr. 573 176. PATENT CLAIM. Use of a copper-palladium-nickel three-component alloy with 10 to 56% palladium, 10 to 60% nickel, the remainder 11 to 69% o copper, with the proviso that the composition is within the hatched field of that shown in the drawing The three-material system is used as a hard solder for joining metal objects that are exposed to temperatures of 550 ° C and more. Documents considered: German Patent No. 684 186; British Patent No. 573 176.
DEM39095A 1957-10-01 1958-09-26 Use of a three-component alloy consisting of copper-palladium-nickel as a hard solder to connect metal objects that are exposed to temperatures of 55 ° C and more Pending DE1121435B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30765/57A GB838951A (en) 1957-10-01 1957-10-01 Improvements relating to brazing

Publications (1)

Publication Number Publication Date
DE1121435B true DE1121435B (en) 1962-01-04

Family

ID=10312790

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM39095A Pending DE1121435B (en) 1957-10-01 1958-09-26 Use of a three-component alloy consisting of copper-palladium-nickel as a hard solder to connect metal objects that are exposed to temperatures of 55 ° C and more

Country Status (3)

Country Link
BE (1) BE571676A (en)
CH (1) CH376755A (en)
DE (1) DE1121435B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE684186C (en) * 1937-05-13 1939-11-23 Degussa Use of palladium alloys for dental purposes
GB573176A (en) * 1943-02-03 1945-11-09 Mond Nickel Co Ltd Improvements relating to soldering and brazing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE684186C (en) * 1937-05-13 1939-11-23 Degussa Use of palladium alloys for dental purposes
GB573176A (en) * 1943-02-03 1945-11-09 Mond Nickel Co Ltd Improvements relating to soldering and brazing

Also Published As

Publication number Publication date
BE571676A (en) 1958-10-31
CH376755A (en) 1964-04-15

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