DE738564C - Flux for soldering zinc and zinc alloys - Google Patents
Flux for soldering zinc and zinc alloysInfo
- Publication number
- DE738564C DE738564C DEM146840D DEM0146840D DE738564C DE 738564 C DE738564 C DE 738564C DE M146840 D DEM146840 D DE M146840D DE M0146840 D DEM0146840 D DE M0146840D DE 738564 C DE738564 C DE 738564C
- Authority
- DE
- Germany
- Prior art keywords
- zinc
- alloys
- chloride
- flux
- soldering
- 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
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
- B23K35/3602—Carbonates, basic oxides or hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating With Molten Metal (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Description
Floßmittel zum Löten von Zink und Zinklegierungen Zum Löten von Zink und seinen Legierungen verwendet man üblicherweise Blei-Zinn-Legierungen als Lot und Salzsäure oder eine salzsaure Lösung von Zinnchlorid als Floßmittel (Lötwasser). Die Entwicklung hat in neuerer Zeit dazu geführt, auch andersartig zusammengesetzte Lote zu verwenden, einerseits um den Gehalt an devisenerfordernden Metallen, vor allem Zinn, zu vermindern, andererseits weil sich :eine Reihe von den in der Technik gebrauchten Zinklegierungen, nämlich die aluminiumhaltigen Legierungen, mit den üblichen Blei-Zinn-Loten nicht löten lassen. Man hat zu dem Zweck Lote entwickelt, die z. B. cadmiumhaltig sind.Flux for soldering zinc and zinc alloys For soldering zinc and its alloys, lead-tin alloys are usually used as solder and hydrochloric acid or a hydrochloric acid solution of tin chloride as a flux (soldering water). In recent times, developments have also led to them being composed differently To use solders, on the one hand, to determine the content of metals requiring foreign exchange all tin, on the other hand, because there are: a number of those in technology used zinc alloys, namely the aluminum-containing alloys with the Do not solder the usual lead-tin solders. Plumb bobs have been developed for the purpose the z. B. contain cadmium.
Als Floßmittel für die aluminiumhaltigen Legierungen hat sich Salzsäure oder salzsaures Zinkchlorid nicht als brauchbar erwiesen. Man verwendete für die aluminiumhaltigen Legierungen vielmehr Natronlauge.Hydrochloric acid has proven to be the rafting agent for the aluminum-containing alloys or hydrochloric acid zinc chloride not proven to be useful. One used for that aluminum-containing alloys rather caustic soda.
Gegenstand der vorliegenden Erfindung sind nun Floßmittel, die sowohl- für aluminiumhaltige Zinklegierungen als auch für die übrigen gebräuchlichen Zinklegierungen verwendbar sind und die insbesondere beim Löten von aluminiumhaltigen Zinklegierungen zu einer Verbesserung der Haftfestigkeit in der Lötnaht geführt haben. Es hat sich gezeigt, daß die Festigkeit der Lötnähte erhöht wird, wenn man nicht, wie dies bisher ausschließlich .empfohlen wurde, Natronlauge verwendet, sondern wenn man der Natron- oder Kalilauge Metallchloride, insbesondere die als Lötmittel verwendeten Chloride, hinzufügt. Insbesondere hat sich ergeben, daß das bei aluminiumhaltigen Legierungen in salzsaurer Lösung nicht verwendbare Zinkchlorid in Natronlauge gelöst ein vorzügliches Floßmittel abgibt. Statt des Zinkchlorids können auch andere Chloride, wie z. B. Lithiumchlorid, Zinnchlorür, Magnesiumchlorid, verwendet werden. Es ist auch möglich, verschiedene dieser Chloride gemeinsam hinzuzufügen. Als Beispiel sei folgende Zusammensetzung genannt. Zu 40 %iger Natronlauge werden i 5 % Zinkchlorid hinzugefügt. Als ein weiteres Beispiel sei ein Flußmittel ,genannt, das in 30%iger Kalilauge 5 % Lithiumchlorid und 50/0 Zinkchlorid enthält. Mit dem in Beispiel i genannten Floßmittel war ..es möglich, die Scherfestigkeit der Lötnaht einer Io% Aluminium enthaltenden Zinklegierung von 3,o kg/mm2 bei q.0 %iger Natronlauge auf 3,6 kg/mm2 zu erhöhen.The present invention now relates to raft means that both- for aluminum-containing zinc alloys as well as for the other common zinc alloys are usable and especially when soldering aluminum-containing zinc alloys have led to an improvement in the adhesive strength in the soldered seam. It has shown that the strength of the soldered seams is increased if one does not, as before It was only recommended to use caustic soda, but if you use the caustic soda or potassium hydroxide metal chlorides, especially the chlorides used as solder, adds. In particular, it has been found that this is the case with alloys containing aluminum Zinc chloride which cannot be used in hydrochloric acid solution dissolved in sodium hydroxide solution is an excellent one Releases raft funds. Instead of zinc chloride, other chlorides, such as. B. Lithium chloride, tin chloride, magnesium chloride can be used. It is also possible, add various of these chlorides together. The following composition is an example called. 5% zinc chloride is added to 40% sodium hydroxide solution. As another An example is a flux that contains 5% lithium chloride in 30% potassium hydroxide solution and 50/0 contains zinc chloride. With the raft means mentioned in example i .. it was possible the shear strength of the soldered seam one containing Io% aluminum Increase zinc alloy from 3.0 kg / mm2 with q.0% sodium hydroxide solution to 3.6 kg / mm2.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM146840D DE738564C (en) | 1940-01-07 | 1940-01-07 | Flux for soldering zinc and zinc alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM146840D DE738564C (en) | 1940-01-07 | 1940-01-07 | Flux for soldering zinc and zinc alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
DE738564C true DE738564C (en) | 1943-08-20 |
Family
ID=7336119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM146840D Expired DE738564C (en) | 1940-01-07 | 1940-01-07 | Flux for soldering zinc and zinc alloys |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE738564C (en) |
-
1940
- 1940-01-07 DE DEM146840D patent/DE738564C/en not_active Expired
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