DE468853C - Solder for aluminum and aluminum alloys - Google Patents

Solder for aluminum and aluminum alloys

Info

Publication number
DE468853C
DE468853C DEP54387D DEP0054387D DE468853C DE 468853 C DE468853 C DE 468853C DE P54387 D DEP54387 D DE P54387D DE P0054387 D DEP0054387 D DE P0054387D DE 468853 C DE468853 C DE 468853C
Authority
DE
Germany
Prior art keywords
aluminum
solder
stearic acid
alloys
lot
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
DEP54387D
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.)
LAURENCE RUTHERFORD PRESTON
Original Assignee
LAURENCE RUTHERFORD PRESTON
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 LAURENCE RUTHERFORD PRESTON filed Critical LAURENCE RUTHERFORD PRESTON
Priority to DEP54387D priority Critical patent/DE468853C/en
Application granted granted Critical
Publication of DE468853C publication Critical patent/DE468853C/en
Expired 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
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • 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
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
    • B23K35/262—Sn as the principal constituent
    • 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
    • B23K35/3612—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 organic compounds as principal constituents
    • B23K35/3618—Carboxylic acids or salts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Description

Es ist bekannt, beim Löten ein Lötmittel zu verwenden, welches unmittelbar vor dem Löten entweder auf die zu lötende Stelle oder auf das Lot selbst aufgebracht wird. Insbesondere ist schon vorgeschlagen worden, Stearinsäure, Kieselsäure oder Silizium und Phosphorzinn in Pastenform als Lötmittel zu verwenden.It is known to use a solder when soldering, which immediately before the Soldering is applied either to the point to be soldered or to the solder itself. In particular It has already been proposed to use stearic acid, silica or silicon and phosphorotin in paste form as solder use.

Die Erfindung besteht darin, daß das LotThe invention consists in that the solder

ίο bereits bei Herstellung des Lotes mit einem Überzug aus Stearinsäure, Silbersand und Phosphorzinn versehen, wird.ίο when making the solder with a A coating of stearic acid, silver sand and phosphor tin is provided.

Ein solches Lot eignet sich insbesondere zum Gebrauch bei der Ausbesserung oder Verbindung von Aluminium und Aluminiumlegierungen in der Form von Platten oder Gußstücken.Such a solder is particularly suitable for use in repairs or Connection of aluminum and aluminum alloys in the form of plates or Castings.

Es hat sich z. B. herausgestellt, daß zur Ausbesserung von Gußstücken oder Platten aus Aluminium oder Aluminiumlegierungen besondere Vorteile durch Überziehen des Lotes mit einer Mischung von Stearinsäure, Silbersand und gepulvertem Phosphorzinn erreicht werden, und dieser auf dem Lot gebil-It has z. B. found that for the repair of castings or plates made of aluminum or aluminum alloys special advantages by coating the solder with a mixture of stearic acid, Silver sand and powdered phosphorus tin can be achieved, and this formed on the solder

S5 dete feste Überzug scheint die Wirkung eines schnellen Aufbrechens der Aluminiumoxydschicht während des Lötvorganges zu haben, ohne einen Überfluß vom Phosphor oder Stearinsäure in der Ausbesserungs- oder Verbindungsstelle zurückzulassen.S5 dete solid coating seems to have the effect of a to have the aluminum oxide layer breaking open quickly during the soldering process, without an excess of phosphorus or stearic acid in the repair or joint to leave behind.

Ein besonders günstiges Verfahren zumA particularly favorable method for

- Aufbringen dieses Überzuges auf das Lötmittel besteht in der Auskleidung der Formen, in welchen das Lötmittel in die Form von Stäben oder Barren gebracht wird, mit einer Mischung von Stearinsäure, Silbersand, und gepulvertem Phosphorzinn. Die gleiche Mischung kann auf die Oberfläche des Lötmittels bei der Verwendung von offenen Formen aufgestreut werden.- Applying this coating to the solder consists of lining the molds, in which the solder is brought into the shape of bars or bars, with a Mixture of stearic acid, silver sand, and powdered phosphor tin. Same mix can be sprinkled on the surface of the solder when using open molds.

Für derartige Zwecke kann das Lot etwa folgende Zusammensetzung haben:For such purposes, the solder can have the following composition:

Zinn 75 %Tin 75%

Zink 22 -Zinc 22 -

Aluminium 2 -Aluminum 2 -

Wismut x- Bismuth x-

Dieses Lot wird mit einer Mischung etwa folgender Zusammensetzung überzogen:This solder is coated with a mixture of approximately the following composition:

Stearinsäure 25 °/„Stearic acid 25 ° / "

Silbersand 25 -Silver sand 25 -

5prozentiges Phosphorzinn 50 -5 percent phosphor tin 50 -

Die Lötung mit diesem Lot erfolgt in der üblichen Weise, mit der Ausnahme jedoch, daß kein Flußmittel Verwendung findet.The soldering with this solder is carried out in the usual way, with the exception, however, that no flux is used.

Mit Hilfe einer derart zusammengesetzten und überzogenen Lötmasse können, wie durch eingehende Versuche festgestellt worden ist, Aluminium und Aluminiuinlegieruingen vorteilhaft verlötet werden, wobei Dauerproben gezeigt haben, daß die Verbindungen oder Ausbesserungsstellen stärkeren Beanspruchungen und atmosphärischen Einflüssen besser standhalten als Lote, bei denen; freies Phosphor in dem Lötmittel vorhanden ist.With the help of such a composite and coated soldering compound can, as by Thorough tests have found aluminum and aluminum alloys to be beneficial are soldered, and endurance tests have shown that the connections or repair sites withstand higher loads and atmospheric influences better than solders, where; free phosphorus in which solder is present.

Claims (2)

Patentansprüche:Patent claims: ι. Lot, insbesondere für Aluminium und Aluminiumlegierungen, gekennzeichnet durch einen bereits bei der Herstellung des Lotes aufgebrachten Überzug aus Stearinsäure, Silbersand und Phosphorzima.ι. Lot, especially for aluminum and aluminum alloys, marked by a coating already applied during the manufacture of the solder Stearic acid, silver sand and phosphorus zima. 2. Lot nach Anspruch i, dadurch gekennzeichpet, daß ein an sich bekanntes, aus 65 bis 85 0/0 Zinn, 16 bis 30 o/o Zink, 0,5 bis 10 o/o Aluminium, 0,25 bis 5 o/o Wismut bestehendes Lot einen aus 20 bis 35 o/0 Stearinsäure, 20 bis 35 o/o SiI-bersand und 40 bis 60 o/o 5prozentigem Phosphorzinn zusammengesetzten Überzug besitzt.2. Lot according to claim i, characterized in that a known per se, from 65 to 85 0/0 tin, 16 to 30 o / o zinc, 0.5 to 10 o / o aluminum, 0.25 to 5 o / o bismuth existing a lot has from 20 to 35 o / 0 stearic acid, 20 to 35 o / o-SiI bersand and 40 to 60 o / o 5prozentigem Phosphorzinn composite coating.
DEP54387D 1927-01-16 1927-01-16 Solder for aluminum and aluminum alloys Expired DE468853C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP54387D DE468853C (en) 1927-01-16 1927-01-16 Solder for aluminum and aluminum alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP54387D DE468853C (en) 1927-01-16 1927-01-16 Solder for aluminum and aluminum alloys

Publications (1)

Publication Number Publication Date
DE468853C true DE468853C (en) 1928-11-23

Family

ID=7387046

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP54387D Expired DE468853C (en) 1927-01-16 1927-01-16 Solder for aluminum and aluminum alloys

Country Status (1)

Country Link
DE (1) DE468853C (en)

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