DE743879C - Use of lead alloys for solders - Google Patents
Use of lead alloys for soldersInfo
- Publication number
- DE743879C DE743879C DES143542D DES0143542D DE743879C DE 743879 C DE743879 C DE 743879C DE S143542 D DES143542 D DE S143542D DE S0143542 D DES0143542 D DE S0143542D DE 743879 C DE743879 C DE 743879C
- Authority
- DE
- Germany
- Prior art keywords
- alloys
- solders
- lead
- lead alloys
- alloy
- 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
- B23K35/24—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
- B23K35/268—Pb as the principal constituent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Adornments (AREA)
Description
Verwendung von Bleilegierungen für Lote Als Bleche u. dgl. kennt man bereits Blei-Antimon-Legierungen, deren Sb-Gehalt io% nicht übersteigt, und es sind auch solche Legierungen mit einem Sb-Gehalt von q. bis 13°/o bekanntgeworden, die zur. Erzielung einer hohen Korrosionsfestigkeit, Härte und .Bruchsicherheit kleine Aluminiumzusätze erhalten und dann thermisch vergütet werden.Use of lead alloys for solders As sheets and the like are known already lead-antimony alloys, the Sb content of which does not exceed 10%, and there are also those alloys with an Sb content of q. until 13 ° / o became known, the to the. Achieving a high level of corrosion resistance, hardness and small break resistance Aluminum additives are obtained and then thermally tempered.
Es wurde nun gefunden, daß bei Blei-Antimon-Legierungen mit 8 bis i 5'/o Sb, also Legierungen eutektischen Gefüges, ein Zusatz von 111, Aluminium oder Magnesium oder einer Mischung beider Metalle ein Gittersystem erzeugt und die Festigkeit der Legierung erheblich erhöht.It has now been found that in lead-antimony alloys with 8 to i 5% Sb, i.e. alloys of a eutectic structure, an addition of 111, aluminum or magnesium or a mixture of both metals creates a grid system and the Strength of the alloy significantly increased.
Nach dem Vorschlage der Erfindung werden diese Legierungen zur Herstellung von Lot verwendet. Die Al-, Mg- oder AI-Mg-Zusätze verdreifachen die Festigkeit im Vergleich zu den zusatzlosen Pb-Sb-Legierungen, und man erhält ein Eutektikum, dessen Schmelzpunkt im wesentlichen jenem des reinen Zinns gleicht.According to the proposal of the invention, these alloys are used for production used by solder. The Al, Mg or Al-Mg additives triple the strength compared to the additive-free Pb-Sb alloys, and a eutectic is obtained, whose melting point is essentially the same as that of pure tin.
Hergestellt wird die Legierung auf eine an sich bekannte Weise, indem man im selben Tiegel Antimon und ein Salz oder Salzgemisch, z. B. Kochsalz, Kaliumchlorid, Lithiumchlorid, einsetzt, so daß ein Schutzüberzug erhalten wird, der die unmittelbare Berührung der Schmelze mit der Luft verhindert. Nach dem Zusatz des Kor rektionsmetalles wird die Masse vollkommen geschmolzen, dann langsam durch den Bleizusatz abgekühlt und somit die Legierung erhalten.The alloy is produced in a manner known per se by one in the same crucible antimony and a salt or salt mixture, z. B. table salt, potassium chloride, Lithium chloride, is used, so that a protective coating is obtained, which is the immediate Prevents the melt from coming into contact with the air. After the addition of the Kor rektionsmetalles if the mass is completely melted, then slowly cooled by the addition of lead and thus preserve the alloy.
Vergleichende Lötproben, die mit dieser Legierung und der handelsüblichen, 400/'o Sn enthaltenden Blei-Zinn-Legierung ausgeführt wurden, haben praktisch die gleiche Axialzugfestigkeit ergeben. Das Lot besitzt ein bedeutendes Fluß- und Haftvermögen sowohl auf Eisen als auch auf Messing, Kupfer, Zink usw., und es eignet sich daher besonders zur Herstellupg.v@on_ Schutzüberzügen.Comparative solder samples made with this alloy and the commercially available, 400 / 'o Sn-containing lead-tin alloy have practically the result in the same axial tensile strength. The solder has significant flow and adhesive properties as well as on iron as well as on brass, copper, zinc, etc., and it is therefore particularly suitable for manufacturing protective coatings.
Aufer diesen Vorteilen bietet die Legierung auch den erheblichen Vorteil, daß zinnarme Länder von der Einfuhr dieses Metalls unabhängig gemacht werden. Aluminium oder Magnesium oder einer Mischung beider Metalle, Rest Blei, zur Herstellung von Lot.In addition to these advantages, the alloy also offers the considerable advantage that tin-poor countries are made independent of the importation of this metal. aluminum or magnesium or a mixture of both metals, the remainder being lead, for the production of Lot.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT743879X | 1940-03-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE743879C true DE743879C (en) | 1944-01-05 |
Family
ID=11315500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES143542D Expired DE743879C (en) | 1940-03-11 | 1941-01-07 | Use of lead alloys for solders |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE743879C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998036626A1 (en) * | 1997-02-14 | 1998-08-20 | Pulse Engineering, Inc. | Printed circuit assembly |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1483320A (en) * | 1920-01-09 | 1924-02-12 | Hoyt Metal Company | Sheet-metal conductor for roofs |
FR643041A (en) * | 1926-11-12 | 1928-09-08 | Ig Farbenindustrie Ag | Extremely corrosion resistant, hard and non-brittle alloys based on lead and antimony |
-
1941
- 1941-01-07 DE DES143542D patent/DE743879C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1483320A (en) * | 1920-01-09 | 1924-02-12 | Hoyt Metal Company | Sheet-metal conductor for roofs |
FR643041A (en) * | 1926-11-12 | 1928-09-08 | Ig Farbenindustrie Ag | Extremely corrosion resistant, hard and non-brittle alloys based on lead and antimony |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998036626A1 (en) * | 1997-02-14 | 1998-08-20 | Pulse Engineering, Inc. | Printed circuit assembly |
US5973932A (en) * | 1997-02-14 | 1999-10-26 | Pulse Engineering, Inc. | Soldered component bonding in a printed circuit assembly |
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