DE19629375C2 - Copper-phosphor solders for soldering copper parts - Google Patents

Copper-phosphor solders for soldering copper parts

Info

Publication number
DE19629375C2
DE19629375C2 DE1996129375 DE19629375A DE19629375C2 DE 19629375 C2 DE19629375 C2 DE 19629375C2 DE 1996129375 DE1996129375 DE 1996129375 DE 19629375 A DE19629375 A DE 19629375A DE 19629375 C2 DE19629375 C2 DE 19629375C2
Authority
DE
Germany
Prior art keywords
copper
weight
solders
phosphor
alloys
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 - Fee Related
Application number
DE1996129375
Other languages
German (de)
Other versions
DE19629375A1 (en
Inventor
Harald Herzog
Wolfgang Dr Weise
Dieter Kaufmann
Josef Faulhaber
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.)
Umicore AG and Co KG
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Priority to DE1996129375 priority Critical patent/DE19629375C2/en
Publication of DE19629375A1 publication Critical patent/DE19629375A1/en
Application granted granted Critical
Publication of DE19629375C2 publication Critical patent/DE19629375C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B23K35/30Selection 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)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Description

Die Erfindung betrifft Hartlote aus Kupfer-Phos­ phorlegierungen zum Löten von Teilen aus Kupfer und Kupferlegierungen.The invention relates to brazing alloys made of copper phos phosphor alloys for soldering parts made of copper and Copper alloys.

Zum Löten von Kupfer und Kupferlegierungen, wie Messing oder Bronze, werden möglichst niedrigschmelzende Hartlote benötigt, um nachteilige Gefügeveränderungen im Werkstoff beim Löten zu vermeiden. Bei der Kupferrohrinstallation und z. B. auch im Transformatorenbau benutzt man Kupfer-Phos­ phorlote, die einige Prozent Silber enthalten können, und niedrigschmelzende Silberhartlote. Für diese Lote benötigt man allerdings Arbeitstemperaturen von über 700°C, die bei empfindlichen Bauteilen zu Schwierigkeiten führen können. Silberhartlote mit Arbeitstemperaturen von unter 700°C erfordern den Einsatz von Flußmitteln, die anschließend wieder umständlich entfernt werden müssen. Aus diesen Gründen wird in vielen Fällen das Hartlöten durch Weichlöten ersetzt, was aber zu deutlich geringeren mechanischen Festigkeiten der Lotstelle führt.For soldering copper and copper alloys such as brass or bronze, become as low-melting brazing alloys as possible needed to cause adverse structural changes in the material to avoid when soldering. For copper pipe installation and e.g. B. also used in transformer construction copper phos phorlote, which can contain a few percent silver and low-melting silver hard solders. For these solders however, you need working temperatures of over 700 ° C, which lead to difficulties with sensitive components can. Silver hard solders with working temperatures below 700 ° C require the use of fluxes then have to be laboriously removed again. Out For these reasons, brazing is done in many cases Soft soldering replaced, which, however, significantly less mechanical strength of the solder joint leads.

Es sind auch Kupfer-Phosphorlote mit 7,5 Gew.-% Phosphor und 18 Gew.-% Silber bekannt, die eine Arbeitstemperatur von etwa 650°C aufweisen. Diese Legierungen sind allerdings sehr spröde und lassen sich nur sehr schwierig zu Lotformstücken verarbeiten.There are also copper-phosphor solders with 7.5 wt .-% phosphorus and 18 wt .-% silver known to have a working temperature of have about 650 ° C. However, these alloys are very brittle and very difficult to admit Process solder fittings.

Es war daher Aufgabe der vorliegenden Erfindung ein Hartlot auf Basis einer Kupfer-Phosphorlegierung zu entwickeln, das eine Arbeitstemperatur von unterhalb 700°C ermöglicht, gute Fließ- und Benetzungseigenschaften aufweist und leicht zu Formstücken verarbeitet werden kann.It was therefore an object of the present invention to use a braze to develop on the basis of a copper-phosphorus alloy  a working temperature of below 700 ° C enables good Has flow and wetting properties and easy to Fittings can be processed.

Diese Aufgabe wird erfindungsgemäß durch eine Lotlegierung gelöst, die aus 0,5 bis 9 Gew.-% Phosphor, 0,5 bis 15 Gew.-% Gallium und 0 bis 20 Gew.-% Silber, 0 bis 4 Gew.-% Nickel, Rest Kupfer besteht.This object is achieved by a solder alloy dissolved, which from 0.5 to 9 wt .-% phosphorus, 0.5 to 15 wt .-% Gallium and 0 to 20% by weight of silver, 0 to 4% by weight of nickel, The rest of the copper is there.

Besonders bewährt haben sich Legierungen, die aus 70 bis 90 Gew.-% Kupfer, 4 bis 8 Gew.-% Phosphor, 1 bis 10 Gew.-% Gallium und 2 bis 18 Gew.-% Silber bestehen.Alloys made from 70 to 90 have proven particularly useful % By weight copper, 4 to 8% by weight phosphorus, 1 to 10% by weight Gallium and 2 to 18 wt .-% silver exist.

Mit Hilfe des Galliumgehaltes lassen sich die Arbeitstemperaturen der erfindungsgemäßen Hartlote variieren.With the help of the gallium content the Working temperatures of the brazing alloys according to the invention vary.

In der deutschen Patentanmeldung P 48 387 D/49h vom 05.07.1949, der US-Patentschrift 5,378,294 und der europäischen Patentanmeldung EP 429 026 A1 werden Kupfer-Phosphor-Lote beschrieben, die unter anderem Indium oder Zinn als schmelzpunktsenkende Legierungskomponenten enthalten. Gallium ist dort nicht vorgesehen.In German patent application P 48 387 D / 49h dated July 5, 1949, U.S. Patent No. 5,378,294 and U.S. Pat European patent application EP 429 026 A1 Copper-phosphor solders described, among others, indium or tin as a melting point lowering alloy component contain. Gallium is not provided there.

Es ist zwar bekannt, daß ein Zulegieren von Gallium den Schmelzpunkt erniedrigen kann. Es ist aber auch generell bekannt, daß ein Zulegieren von Gallium im Normalfall die Duktilität verschlechtert und eine Versprödung der Legierungen bewirkt. Insbesondere werden Kupfer-Silber-Legierungen mit mehr als 8 Gew.-% Gallium schwer verformbar und können nicht mehr zu Halbzeug verarbeitet werden. It is known that alloying gallium to the Can lower melting point. But it is also general known that the addition of gallium normally the Ductility deteriorates and embrittlement of the Alloys. In particular, be Copper-silver alloys with more than 8% by weight gallium difficult to deform and can no longer be semi-finished are processed.  

Überraschenderweise tritt dieser Effekt bei den erfindungsgemäßen Gallium-haltigen Kupfer-Phosphor-Legierungen nicht ein.Surprisingly, this effect occurs in the gallium-containing invention Copper-phosphorus alloys do not.

Die erfindungsgemäßen Hartlote weisen außerdem sehr gute Fließ- und Benetzungseigenschaften auf den zu lötenden Teilen aus Kupfer auf und können daher ohne den Einsatz von Flußmitteln angewendet werden. Sie sind gut verformbar und daher leicht zu Lotformteilen zu verarbeiten.The brazing alloys according to the invention also have very good Flow and wetting properties on those to be soldered Parts made of copper and can therefore be used without the use of Fluxes can be applied. They are easily deformable and therefore easy to process into solder molded parts.

Die folgende Tabelle zeigt die Zusammensetzung einiger beispielhafter Hartlote gemäß der Erfindung und die damit erreichbaren Arbeitstemperaturen. The following table shows the composition of some exemplary brazing alloys according to the invention and the so achievable working temperatures.  

Tabelletable

Claims (2)

1. Hartlot auf der Basis von Kupfer-Phosphorlegierungen zum Löten von Teilen aus Kupfer und Kupferlegierungen, dadurch gekennzeichnet, das es aus 0,5 bis 9 Gew.-% Phosphor, 0,5 bis 25 Gew.-% Gallium, 0 bis 20 Gew.-% Silber, 0 bis 4 Gew.-% Nickel, Rest Kupfer besteht.1. Brazing solder based on copper-phosphorus alloys for soldering parts made of copper and copper alloys, characterized in that it consists of 0.5 to 9% by weight of phosphorus, 0.5 to 25% by weight of gallium, 0 to 20 % By weight of silver, 0 to 4% by weight of nickel, balance copper. 2. Hartlot nach Anspruch 1, dadurch gekennzeichnet, daß es aus 70 bis 90 Gew.-% Kupfer, 4 bis 8 Gew.-% Phosphor, 1 bis 10 Gew.-% Gallium und 2 bis 18 Gew.-% Silber besteht.2. brazing solder according to claim 1, characterized, that it consists of 70 to 90 wt .-% copper, 4 to 8 wt .-% Phosphorus, 1 to 10% by weight gallium and 2 to 18% by weight Silver exists.
DE1996129375 1996-07-20 1996-07-20 Copper-phosphor solders for soldering copper parts Expired - Fee Related DE19629375C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1996129375 DE19629375C2 (en) 1996-07-20 1996-07-20 Copper-phosphor solders for soldering copper parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996129375 DE19629375C2 (en) 1996-07-20 1996-07-20 Copper-phosphor solders for soldering copper parts

Publications (2)

Publication Number Publication Date
DE19629375A1 DE19629375A1 (en) 1998-01-22
DE19629375C2 true DE19629375C2 (en) 1998-07-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE1996129375 Expired - Fee Related DE19629375C2 (en) 1996-07-20 1996-07-20 Copper-phosphor solders for soldering copper parts

Country Status (1)

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DE (1) DE19629375C2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6530514B2 (en) * 2001-06-28 2003-03-11 Outokumpu Oyj Method of manufacturing heat transfer tubes
CN100463763C (en) * 2006-12-12 2009-02-25 常熟市华银焊料有限公司 Cu-P-Ag solder containing Ga, In and Ce
EP2756914A1 (en) * 2013-01-18 2014-07-23 Umicore AG & Co. KG Solder alloy
CN104646847A (en) * 2013-11-21 2015-05-27 青岛润鑫伟业科贸有限公司 Silver-copper solder for brazing of copper radiator
EP2977140A1 (en) * 2014-07-22 2016-01-27 Umicore AG & Co. KG Annular disc
CN107553002A (en) * 2017-09-04 2018-01-09 湖北汽车工业学院 A kind of soldering masterbatch and its soldering processes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0429026A1 (en) * 1989-11-17 1991-05-29 Outokumpu Oy Copper alloys to be used as brazing filler metals
US5378294A (en) * 1989-11-17 1995-01-03 Outokumpu Oy Copper alloys to be used as brazing filler metals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0429026A1 (en) * 1989-11-17 1991-05-29 Outokumpu Oy Copper alloys to be used as brazing filler metals
US5378294A (en) * 1989-11-17 1995-01-03 Outokumpu Oy Copper alloys to be used as brazing filler metals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Patentanmeldung P 48387D/49h-05.07.1949 *

Also Published As

Publication number Publication date
DE19629375A1 (en) 1998-01-22

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DEGUSSA-HUELS AG, 60311 FRANKFURT, DE

8327 Change in the person/name/address of the patent owner

Owner name: BRAZETEC GMBH, 63457 HANAU, DE

8327 Change in the person/name/address of the patent owner

Owner name: UMICORE AG & CO. KG, 63457 HANAU, DE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20120201