DE2628853A1 - PROCESS FOR MANUFACTURING A CAST CONTACT PIECE PROVIDED WITH A COATING OF GOOD CONDUCTIVE MATERIAL - Google Patents
PROCESS FOR MANUFACTURING A CAST CONTACT PIECE PROVIDED WITH A COATING OF GOOD CONDUCTIVE MATERIALInfo
- Publication number
- DE2628853A1 DE2628853A1 DE19762628853 DE2628853A DE2628853A1 DE 2628853 A1 DE2628853 A1 DE 2628853A1 DE 19762628853 DE19762628853 DE 19762628853 DE 2628853 A DE2628853 A DE 2628853A DE 2628853 A1 DE2628853 A1 DE 2628853A1
- Authority
- DE
- Germany
- Prior art keywords
- conductive material
- contact piece
- casting mold
- casting
- coating
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Switches (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Description
Maschinenfabrik Reinhauser. Regens burg, den 24. Juni 1976 Gebrüder Scheubeck GmbH & Co KG 210Ka/Gl Falkensteinstraße 8Maschinenfabrik Reinhauser. Regensburg, June 24th 1976 Gebrüder Scheubeck GmbH & Co KG 210Ka / Gl Falkensteinstrasse 8
8400 Regensburg . ^8400 Regensburg. ^
Verfahren zur Herstellung eines gegossenen und mit einer Auflage aus gut leitendem Material versehenen KontaktStückesProcess for the production of a cast contact piece provided with a layer of highly conductive material
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines mittels .einer Gießform gegossenen und mit einer Auflage .aus gut leitendem Material versehenen Kontaktstückes aus einer ■Kupferlegierung.The invention relates to a method for producing a cast by means of a casting mold and with a support . Made of a highly conductive material provided contact piece made of a ■ copper alloy.
Bei elektrischen Schaltgeräten werden häufig im Gießverfahren hergestellte Kontaktstücke aus Kupferlegierungen eingesetzt, die dann zur Verbesserung der eigentlichen Kontaktstellen mit einer Auflage aus gut leitendem Material, z.B. aus Hartsilber, versehen werden. Diese Auflage wird nachträglich auf das Kontaktrstück aufgelötet, wofür verschiedene Lötverfahren bekannt sind. Liegt in dem Lötverfahren an sich schon ein zusätzlicher aufwendiger Arbeitsgang, so treten außerdem beim Auflöten der aus Plättchen oder Streifen bestehenden Auflage Schwierigkeiten auf. Denn an den Berührungsflächen zwischen dem Material des Kontaktstückes und dem Material der Auflage tritt bereits vor Erreichen der eigentlichen Schmelztemperatur eine Verflüssigung der Materialien auf, die dann in diesem Bereich zu einer Legierung führt. Dies ist an sich wünschenswert, jedoch kann hierdurch die Silberauflage ihre Form verlieren und demzufolge eine ungleichmäßige Oberfläche annehmen.Contact pieces made of copper alloys using a casting process are often used in electrical switching devices, which then to improve the actual contact points with a layer of highly conductive material, e.g. made of hard silver, be provided. This edition is subsequently applied to the contact piece soldered on, for which various soldering methods are known. If the soldering process itself is an additional, more complex one Working step, difficulties also arise when soldering the support consisting of platelets or strips on. Because at the contact surfaces between the material of the contact piece and the material of the support already occurs Reaching the actual melting temperature a liquefaction of the materials, which then in this area to an alloy leads. This is desirable per se, but it can cause the silver plating to lose its shape and, consequently, an uneven shape Assume surface.
Aufgabe der Erfindung ist es, ein Verfahren zur rationellen Herstellung der beschriebenen Kontaktstücke anzugeben, bei welchen die Gefahr der Verwerfung der Auflage nicht besteht. Diese Aufgabe wird erfindungsgemäß bei dem eingangs genannten Verfahren dadurch gelöst, daß vor dem Einbringen der Gußmasse in die Gießform ein Streifen oder Plättchen aus gut leitendem Material an der mitThe object of the invention is to provide a method for the efficient production of the contact pieces described, in which there is no risk of the condition being rejected. This object is achieved according to the invention in the method mentioned at the outset solved that before introducing the casting compound into the mold, a strip or plate of highly conductive material on the with
7098817022170988170221
— 2 —- 2 -
- ar-- ar-
der Auflage zu versehenen Stelle in die Gießform eingelegtthe location to be provided is placed in the mold
Die mit der Erfindung erzielten Vorteile "bestehen insbesondere darin, daß ein zusätzliches Lötverfahren zum Aufbringen der Auflage aus gut leitendem Materini nicht mehr erforderlich ist, und auch darin, daß durch das Einlegen der Auflage in die Gießform eine gute Formgenauigkeit der Auflage eingehalten werden kann. Ferner ist eine zuverlässige Verbindung der beiden Materialien gegeben. Zweckmäßig ist es, die in die Gießform eingelegte Auflage zu arretieren, damit sie beim Gießvorgang ihre Lage nicht verändert. Hierzu kann die Auflage mit ihren Kanten oder mit z.B. stiftförmigen Vorsprüngen in entsprechende Ausnehmungen der Gießform eingreifen.The advantages achieved with the invention "exist in particular in that an additional soldering process for applying the overlay made of highly conductive material is no longer necessary, and also in that by placing the support in the casting mold, a good dimensional accuracy of the support is maintained can. There is also a reliable connection between the two materials. It is useful to insert the into the casting mold To lock the support so that it does not change its position during the casting process. For this purpose, the support with its edges or with e.g. pin-shaped projections engage in corresponding recesses in the casting mold.
In der zugehörigen Zeichnung ist zur weiteren Erläuterung des neuen Verfahrens ein Teil einer Gießform 1 im Querschnitt dargestellt, in welche das eigentliche Kontaktstück 2 eingegossen wird, An der mit der Auflage zu versehenen Stelle wird vor dem Gießvorgang ein Plättchen 3 in die Gießform 1 eingelegt, das mit seinen Kanten 4 in entsprechende Ausnehmungen der Gießform eingreift. Durch die satte Auflage des Plättchens 4 an der Innenwand der Gießform wird sichergestellt, daß sich das Plättchen beim Einbringen der" Gußmasse nicht verformt. Andererseits findet beim Einbringen der Gußmasse und beim Erkalten der Gußmasse (Kontaktstück 2) in der Übergangszone zum Plättchen 4 eine Vermischung der beiden Materialien und somit eine zuverlässige Verbindung zwischen Kontaktstück 2 und Plättchen 3 statt.In the accompanying drawing, a part of a casting mold 1 is shown in cross section to further explain the new method, in which the actual contact piece 2 is cast, at the point to be provided with the support is before the casting process a plate 3 is inserted into the casting mold 1, which engages with its edges 4 in corresponding recesses in the casting mold. The full contact of the platelet 4 on the inner wall of the casting mold ensures that the platelet is not deformed when the casting compound is introduced. On the other hand, when the casting compound is introduced and the casting compound cools down (Contact piece 2) in the transition zone to the plate 4 a mixing of the two materials and thus a reliable connection between contact piece 2 and plate 3 instead.
709881/0221709881/0221
LeerseiteBlank page
Claims (2)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762628853 DE2628853A1 (en) | 1976-06-26 | 1976-06-26 | PROCESS FOR MANUFACTURING A CAST CONTACT PIECE PROVIDED WITH A COATING OF GOOD CONDUCTIVE MATERIAL |
| SE7707297A SE7707297L (en) | 1976-06-26 | 1977-06-23 | WAY TO PRODUCE A CAST AND WITH A PALE OF WELL CONDUCTIVE MATERIAL CONTINUE CONTACT PIECE |
| GB26268/77A GB1543295A (en) | 1976-06-26 | 1977-06-23 | Method of making an electrical contact member |
| JP7457677A JPS5316878A (en) | 1976-06-26 | 1977-06-24 | Method of manufacturing contact member to be casted and provided with supporting body made of excellent electric conductor |
| FR7719443A FR2355593A1 (en) | 1976-06-26 | 1977-06-24 | METHOD FOR MANUFACTURING A CONTACT PART AND CONTACT PARTS OBTAINED BY IMPLEMENTING THE PROCESS |
| NL7707032A NL7707032A (en) | 1976-06-26 | 1977-06-24 | PROCESS FOR THE MANUFACTURE OF A CAST AND COVERING FROM GATD CONDUCTIVE MATERIAL PROVIDED CONTACT PIECE AND CONTACT PIECE MANUFACTURED ACCORDING TO THE METHOD. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762628853 DE2628853A1 (en) | 1976-06-26 | 1976-06-26 | PROCESS FOR MANUFACTURING A CAST CONTACT PIECE PROVIDED WITH A COATING OF GOOD CONDUCTIVE MATERIAL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2628853A1 true DE2628853A1 (en) | 1978-01-05 |
Family
ID=5981568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762628853 Withdrawn DE2628853A1 (en) | 1976-06-26 | 1976-06-26 | PROCESS FOR MANUFACTURING A CAST CONTACT PIECE PROVIDED WITH A COATING OF GOOD CONDUCTIVE MATERIAL |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5316878A (en) |
| DE (1) | DE2628853A1 (en) |
| FR (1) | FR2355593A1 (en) |
| GB (1) | GB1543295A (en) |
| NL (1) | NL7707032A (en) |
| SE (1) | SE7707297L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4621674A (en) * | 1983-01-31 | 1986-11-11 | Swiss Aluminium Ltd. | Means of anchorage of anode pins or stubs in a carbon anode |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE860927A (en) * | 1976-05-18 | 1978-03-16 | Ardal Og Sunndal Verk | METAL CASTING WELDING PROCESS AND DEVICE |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2049771A (en) * | 1935-02-06 | 1936-08-04 | Mallory & Co Inc P R | Method of making silver contacts |
| FR1032728A (en) * | 1951-01-16 | 1953-07-03 | Bridgestone Bicycle Company Lt | Method and apparatus for the manufacture of metal articles by bonding metal parts by means of cast alloy |
| FR1098470A (en) * | 1954-04-16 | 1955-07-27 | G Madeline Ets | Method and device for securing a non-rigid gasket with a rigid support, preferably metallic |
-
1976
- 1976-06-26 DE DE19762628853 patent/DE2628853A1/en not_active Withdrawn
-
1977
- 1977-06-23 SE SE7707297A patent/SE7707297L/en unknown
- 1977-06-23 GB GB26268/77A patent/GB1543295A/en not_active Expired
- 1977-06-24 FR FR7719443A patent/FR2355593A1/en active Granted
- 1977-06-24 JP JP7457677A patent/JPS5316878A/en active Pending
- 1977-06-24 NL NL7707032A patent/NL7707032A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4621674A (en) * | 1983-01-31 | 1986-11-11 | Swiss Aluminium Ltd. | Means of anchorage of anode pins or stubs in a carbon anode |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1543295A (en) | 1979-04-04 |
| FR2355593A1 (en) | 1978-01-20 |
| SE7707297L (en) | 1977-12-27 |
| FR2355593B1 (en) | 1982-07-02 |
| NL7707032A (en) | 1977-12-28 |
| JPS5316878A (en) | 1978-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |