DE554087C - Solder for aluminum and its alloys - Google Patents

Solder for aluminum and its alloys

Info

Publication number
DE554087C
DE554087C DEG72573D DEG0072573D DE554087C DE 554087 C DE554087 C DE 554087C DE G72573 D DEG72573 D DE G72573D DE G0072573 D DEG0072573 D DE G0072573D DE 554087 C DE554087 C DE 554087C
Authority
DE
Germany
Prior art keywords
solder
aluminum
soldering
alloys
weight
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
DEG72573D
Other languages
German (de)
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.)
Compagnie Royale Asturienne des Mines
Original Assignee
Compagnie Royale Asturienne des Mines
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 Compagnie Royale Asturienne des Mines filed Critical Compagnie Royale Asturienne des Mines
Priority to DEG72573D priority Critical patent/DE554087C/en
Application granted granted Critical
Publication of DE554087C publication Critical patent/DE554087C/en
Expired 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
    • B23K35/36Selection 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
    • B23K35/3601Selection 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
    • B23K35/3603Halide 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)

Description

Die Erfindung betrifft ein Lötmittel, dasThe invention relates to a solder that

insbesondere ztrm Löten von Aluminium und seinen Legierungen bestimmt ist, sich aber auch zum Löten anderer Metalle, wie z, B.especially for soldering aluminum and its alloys, but is also suitable for soldering other metals, such as

Eisenr Messing, Kupfer usw., eignet.Iron r brass, copper, etc., is suitable.

Gemäß der Erfindung besteht das neue Lötpufver etwa aus 90 Gewichtsteilen Zinkchlorid, etwa 8 Gewichtsteilen Ammoniumbromid und etwa 2 Gewichtsteilen Natriumfluorid.According to the invention, there is the new soldering powder about 90 parts by weight of zinc chloride, about 8 parts by weight of ammonium bromide and about 2 parts by weight of sodium fluoride.

Natürlich sind nicht nur kleine Abweichungen von diesem "Verhältnis zulässig, sondern es Minnen auch in der üblichen Weise noch Zusatzstoffe hinzugefügt werden.Of course, these are not just minor deviations This ratio is permissible, but additives can also be added in the usual way.

Der Schmelzpunkt der neuen pulverförmige'n Lötsubstanz liegt ungefähr bei 1900 Ihre Anwendung erfolgt folgendermäßen :The melting point of the new powdery soldering substance is around 190 0. It is used as follows:

Die zu verbindenden Stellen werden zunächst blank gemacht, hiernach wird das Pulver aufgetragen und mittels einer Flamme erhitzt. Schon nach wenigen Sekunden wird das Pulver flüssig. Es ist hierbei grau; nimmt sofort eine bläuliche Färbung unter Wolkenbildung und unmittelbar darauf eine endgül-The places to be connected are first made blank, then this is Powder applied and heated by means of a flame. After a few seconds it will the powder is liquid. It is gray here; immediately takes on a bluish tint with cloud formation and immediately afterwards a final

s5 tige silberhelle Tönung an. Die Lötnaht ist hiermit fertig, kann abgekühlt und bearbeitet werden.bright silver tint. The solder seam is with this done, can be cooled down and processed.

Lötpulver von teilweise ähnlicher Zusammensetzung sind bereits bekannt.Solder powders of a partially similar composition are already known.

So ist ein Pulver vorgeschlagen, das in derSo a powder is suggested that is in the

ι Hauptsache aus Chloriden und Fluoriden der Alkalimetalle besteht. Versuche haben jedoch ergeben, daß ein solches Pulver nicht als Lötmittel, sondern als Schweißpulver anzu-· sprechen ist.Mainly consists of chlorides and fluorides of the alkali metals. Attempts have however show that such a powder should not be used as solder, but as welding powder. speak is.

Es ist ferner ein Lötmittel bekannt, welches hauptsächlich aus Chlorzink besteht, dem Chloride und Fluoride von Alkali- und Leichtmetallen zugesetzt sind. Hierbei reicht jedoch, wie Versuche zeigten, die Aussehetdung des Zinks nicht aus, um eine sichere Lötung von Alüminiumstreifen zu ermög1-liehen. There is also known a solder which mainly consists of zinc chloride to which chlorides and fluorides of alkali and light metals are added. Here, however, that not enough Aussehetdung as tests showed from the zinc, -liehen a secure soldering of Alüminiumstreifen to made first

Am nächsten kommt dem neuen Lötmittel ein Lötpulver, das aus 90 Gewichtsteilen Zinkchlorid und 10 Gewichtsteilen' Natriumchlorid besteht. Dieses bekannte Lötmittel braucht jedoch nicht nur die doppelte Zeit zum Zusammenlöten zweier Aluminiumbleche, sondern auch wesentlich höhere Tempera- 5< türen. Die geringe Lötzeit und die geringe Löttemperatur des neuen Mittels ermöglichen es im Gegensatz zu den bekannten Mitteln, die Lötung bereits zu beenden, bevor das Verziehen oder Welligwerden selbst dünner zu SS verlötender Bleche eintritt. Außerdem ist die Reduktionsfähigkeit der neuen Mischung für Zink besser als die der alten. Die Lötstelle bei dem neuen Lötmittel zeigt schönes metallisch glänzendes und gut geflossenes metal-The closest thing to the new solder is a solder powder made from 90 parts by weight Zinc chloride and 10 parts by weight of sodium chloride consists. However, this known solder not only takes twice the time for soldering two aluminum sheets together, but also at significantly higher temperatures doors. The short soldering time and the low soldering temperature of the new agent make it possible in contrast to the known means, the soldering is already finished before the warping or even thin sheets soldered to form SS become corrugated. Besides, the The new compound's ability to reduce zinc is better than that of the old one. The solder joint the new solder shows beautiful, shiny, well-flowed metal

lisches Zink, während da« bekannte Mittel einen Glanz^ der Lötstelle vermissen läßt.ic zinc, while there are known agents lacks a shine ^ of the solder joint.

Hieraus ergibt sich, daß das neue Mittel bekannten Aluminiumlötmitteln überlegen ist, was sich auch daraus ergibt, daß Bleche mit ihren Stoßfugen, also ohne Überlappung, haltbar aneinandergelötet werden können.It follows that the new means is superior to known aluminum solder, which also results from the fact that sheets with their butt joints, i.e. without overlapping, can be permanently soldered to one another.

Claims (1)

Patentanspruch:
Lötmittel für Aluminium und seine Legierungen, gekennzeichnet durch eine Mischung· von etwa 90 Gewichtsteilen Zinkchlorid, 8 Gewichtsteilen Ammoniumbromid und 2 Gewichtsteilen Natriumfluoride
Claim:
Solder for aluminum and its alloys, characterized by a mixture of about 90 parts by weight of zinc chloride, 8 parts by weight of ammonium bromide and 2 parts by weight of sodium fluoride
DEG72573D 1928-02-21 1928-02-21 Solder for aluminum and its alloys Expired DE554087C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG72573D DE554087C (en) 1928-02-21 1928-02-21 Solder for aluminum and its alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG72573D DE554087C (en) 1928-02-21 1928-02-21 Solder for aluminum and its alloys

Publications (1)

Publication Number Publication Date
DE554087C true DE554087C (en) 1932-07-04

Family

ID=7135371

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG72573D Expired DE554087C (en) 1928-02-21 1928-02-21 Solder for aluminum and its alloys

Country Status (1)

Country Link
DE (1) DE554087C (en)

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