DE1817041A1 - Solder for ti containing zn alloys - Google Patents

Solder for ti containing zn alloys

Info

Publication number
DE1817041A1
DE1817041A1 DE19681817041 DE1817041A DE1817041A1 DE 1817041 A1 DE1817041 A1 DE 1817041A1 DE 19681817041 DE19681817041 DE 19681817041 DE 1817041 A DE1817041 A DE 1817041A DE 1817041 A1 DE1817041 A1 DE 1817041A1
Authority
DE
Germany
Prior art keywords
zinc
chloride
alloys
solders
solder
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
DE19681817041
Other languages
German (de)
Inventor
Pelzel Dr Mont Dipl-Ing Erich
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.)
Stolberger Zink AG
Original Assignee
Stolberger Zink 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 Stolberger Zink AG filed Critical Stolberger Zink AG
Priority to DE19681817041 priority Critical patent/DE1817041A1/en
Publication of DE1817041A1 publication Critical patent/DE1817041A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
    • B23K35/3603—Halide salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

Solders containing zinc chloride or zinc-ammonium chloride contain an additional 0.1-20% stannous chloride, calculated on the total content of the other salts. The stannous chloride may be substituted up to 50% by bismuth chloride. Pb solders or Pb-Sn solders housing a low Sn content, both having a melting point above 300 degrees C. are pref. used for soft-soldering of Ti-containing Zn alloys according to this method.

Description

Lötmittel für titanhaltige Zinklegierungen Die Erfindung betrifft ein Zink chlorid oder Zinkammonchlorid oder Zinkammonchlorid und Salzsäure enthaltendes Lötmittel fUr titanhaltige Zinklegierungen. Solder for Titanium Containing Zinc Alloys The invention relates to a zinc chloride or zinc ammonium chloride or zinc ammonium chloride and hydrochloric acid containing Solder for zinc alloys containing titanium.

Beim Löten von Zink und Zinklegierungen mit Blei-Zinnloten wird üblicherweise Zinkchlorid oder Zink-Ammoniumchlorid als Flußmittel in wässriger, meist salzsaurer Lösung verwendet. Sind keine störenden Legierungselemente im Zink vorhanden, so kann auch Salzsäure verwendet werden, die sich mit Zink zu Zinkchlorid umsetzt.When soldering zinc and zinc alloys with lead-tin solders, it is common Zinc chloride or zinc ammonium chloride as a flux in aqueous, mostly hydrochloric acid Solution used. If there are no interfering alloying elements in the zinc, then so Hydrochloric acid can also be used, which reacts with zinc to form zinc chloride.

Störende Legierungsbestandteile sind z.B. Tupfer, das, primär gelöst, einen schwarzen Niederschlag bildet. In diesem Falle wUrde neutrales Zink-Ammoniumchlorid als Flußmittel verwendet werden müssen.Disruptive alloy components are e.g. swabs that, primarily dissolved, forms a black precipitate. In this case it would be neutral zinc ammonium chloride must be used as flux.

Bei den in den letzten Jahren entwickelten dauerstandfesten Zink Kuprer-Titanlegierungen ergaben sich Schwierigkeiten auch bei binären, also kupfer-freien Legierungen. Es wurde eine schlechte benetzbarkeit der Lote bei Verwendung Von Salzsäure, Zinkchlorid und Zinkammonchlorid-Lösung beobachtet. Das unedlere Titan reagiert nämlich unter Bildung basischer Salze, die sich beim Erhitzen zersetzen und dadurch die schlechtere Benetzung des Lötmittels verursachen.In the case of the durable zinc copper-titanium alloys developed in recent years Difficulties also arose with binary, i.e. copper-free alloys. It a poor wettability of the solders when using hydrochloric acid, zinc chloride and zinc ammonium chloride solution observed. The less noble titanium namely underreacts Formation of basic salts, which decompose when heated and thus the worse Cause wetting of the solder.

Es wude nun gefunden, daß die Schwierigkeiten beim Weichlöten titan-haltiger Zinklegierungen völlig behoben werden können, wenn ein Zink chlorid oder Zinkammonchlorid oder Ztnkammonchlorid und Salzsäure enthaltendes Lötmittel verwendet wird, das erfindungsgemäß zusätzlich o,l bis 20 k Zinnchlorür (8nu12), bezogen auf die Menge der anderen Salze, aut-weist. Das Verfllltnis Zinkchlorid Ammonchlorid kann dabei beliebig gewählt werden, die Auf#sun$ der Salze in Wasser oder salzsaurem Wasser erfolgt in 50 bis Sioo com pro loo g Salz.It has now been found that the difficulties in soft soldering are titanium-containing Zinc alloys can be completely remedied if a zinc chloride or zinc ammonium chloride or solder containing zinc ammonium chloride and hydrochloric acid which is in accordance with the present invention additionally 0.1 to 20 k tin chloride (8nu12), based on the amount of the other salts, aut-wise. The liquor zinc chloride ammonium chloride can thereby can be chosen arbitrarily, the Auf # sun $ of the salts in water or hydrochloric acid water takes place in 50 to sioo com per loo g of salt.

Beispiel: Ein Lötmittel besteht aus 75 g Zinkchlorid 25 g Ammonchlorid + 5 g Zinnchlorür, gelöst in 9o ccm Wasser + lo ccm Salzsäure Konz.Example: A solder consists of 75 g zinc chloride 25 g ammonium chloride + 5 g tin chloride, dissolved in 9o ccm water + lo ccm hydrochloric acid conc.

Zinnchlorür kann bis zur Hälfte des angegebenen Bereiches durch Wismutchlorid ersetzt werden, wodurch die Benetzung besonders bei bleireichen Loten noch verbessert wird.Tin chloride can be replaced by bismuth chloride up to half of the specified range replaced, which improves the wetting, especially with lead-rich solders will.

Die Verwendung von zinnchlorür-haltigen Flußmitteln beim Löten von titanhaltigen Zink legierungen ergibt nämlich noch einen weiteren wirtschaftlichen Vorteil: Titan-haltige Zlnkknetlegierungen rekristallisieren bekanntlich nicht beim Erhitzen bis 3800 C. Dadurch ergibt sich die M5glichkeit der Verwendung billiger zinnarmer Lote oder sogar von reinem Blei.The use of tin chloride-containing fluxes when soldering Titanium-containing zinc alloys result in yet another economical one Advantage: It is well known that zinc wrought alloys containing titanium do not recrystallize during Heating up to 3800 C. This makes it cheaper to use low-tin solders or even pure lead.

Lötversuche mit Loten, deren Schmelzpunkt über 3000 C lag, verliefen mit normalen Flußmitteln negativ, mit dem beschriebenen, zinnchlorür-haltigen Flußmittel war das Löten titan-haltiger Zinklegierungen selbst mit reinem Blei ohne Schwierigkeiten möglich.Soldering tests with solders with a melting point above 3000 C were carried out negative with normal fluxes, with the described flux containing tin chloride soldering zinc alloys containing titanium was no problem even with pure lead possible.

Claims (2)

PatentansprücheClaims 1. Zinkchlorid oder Zinkammonchiorid oder Zinkammonchlorid + Salzsäure enthaltendes Lötmittel fUr titan-haltige Zinklegierungen, gekennzeichnet durch einen zusätzlichen Gehalt von 0,1 bis 20 % Zinnchlorür, bezogen auf die Menge der anderen Salze.1. Zinc chloride or zinc ammonium chloride or zinc ammonium chloride + hydrochloric acid Containing solder for titanium-containing zinc alloys, characterized by a additional content of 0.1 to 20% tin chloride, based on the amount of the others Salts. 2. Lötmittel nach Anspruch 1, dadurch gekennzeicimet, daß der Zinnohlorürgehalt bis zur Hälfte durch Wismutchlorid ersetzt wird.2. Solder according to claim 1, characterized gekennzeicimet that the Zinnohlorürlösung is replaced up to half by bismuth chloride. ). Verfahren zum Weichlöten von titanhaltigen Zinklegierungen mit dem Lötmittel nach Anspruch 1 - 2, dadurch gekennzeichnet, daß Blei- oder zinnarme Blei-Zinn-Lote mit einem Schmelzpunkt von Uber 3000 C verwendet werden.). Process for the soft soldering of titanium-containing zinc alloys with the solder according to claim 1 - 2, characterized in that lead or tin poor Lead-tin solders with a melting point of over 3000 C can be used.
DE19681817041 1968-12-27 1968-12-27 Solder for ti containing zn alloys Pending DE1817041A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19681817041 DE1817041A1 (en) 1968-12-27 1968-12-27 Solder for ti containing zn alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681817041 DE1817041A1 (en) 1968-12-27 1968-12-27 Solder for ti containing zn alloys

Publications (1)

Publication Number Publication Date
DE1817041A1 true DE1817041A1 (en) 1970-07-09

Family

ID=5717417

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681817041 Pending DE1817041A1 (en) 1968-12-27 1968-12-27 Solder for ti containing zn alloys

Country Status (1)

Country Link
DE (1) DE1817041A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169656A1 (en) * 1984-06-18 1986-01-29 Copper Development Association, Inc. Soldering compositions, fluxes and methods of use
US4717430A (en) * 1984-06-18 1988-01-05 Copper Development Association, Inc. Soldering compositions, fluxes and methods of use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169656A1 (en) * 1984-06-18 1986-01-29 Copper Development Association, Inc. Soldering compositions, fluxes and methods of use
US4647308A (en) * 1984-06-18 1987-03-03 Copper Development Association, Inc. Soldering compositions, fluxes and methods of use
US4717430A (en) * 1984-06-18 1988-01-05 Copper Development Association, Inc. Soldering compositions, fluxes and methods of use

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