DE868724C - Process for producing metal-ceramic connections - Google Patents
Process for producing metal-ceramic connectionsInfo
- Publication number
- DE868724C DE868724C DEL6448A DEL0006448A DE868724C DE 868724 C DE868724 C DE 868724C DE L6448 A DEL6448 A DE L6448A DE L0006448 A DEL0006448 A DE L0006448A DE 868724 C DE868724 C DE 868724C
- Authority
- DE
- Germany
- Prior art keywords
- solder
- ceramic
- soldering
- producing metal
- ceramic connections
- 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
- 238000000034 method Methods 0.000 title claims description 13
- 239000000919 ceramic Substances 0.000 title claims description 9
- 229910000679 solder Inorganic materials 0.000 claims description 14
- 238000005476 soldering Methods 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 6
- 238000007872 degassing Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
- C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
- C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Description
Verfahren zum Herstellen von Metall -Keramik -Verbindungen Es ist bereits ein Verfahren zur Herstellung von Keramik-Metall-Verbindungen bekannt, bei dem das Lötmetall, insbesondere Silberlot, unmittelbar auf die Keramikoberfläche aufgebracht und mit ihr zur Reaktion gebracht wird. Bei diesem Verfahren wird der Lötprozeß im Vakuum vorgenommen, weil hei der hierbei auftretenden Beseitigung von Gasschichten der Kontakt zwischen dem Lot und der Keramikoberfläche besonders innig wird.Process for producing metal-ceramic joints It is a process for the production of ceramic-metal connections is already known which the solder, in particular silver solder, directly onto the ceramic surface is applied and made to react with it. In this process, the Soldering process carried out in a vacuum because of the elimination of Gas layers make the contact between the solder and the ceramic surface particularly intimate will.
Die bei diesem Verfahren auftretenden Gase stammen teils aus dem Silberlot, teils auch aus der Keramik. Sie entweichen nur langsam während des Lötprozesses, zumal die Löträume verhältnismäßig dicht abgeschlossen sind. Der Lötprozeß unter Vakuum erfordert somit zum Entfernen der Blasen eine sehr beträchtliche Zeit.Some of the gases that occur during this process come from the silver solder, partly also from ceramics. They only escape slowly during the soldering process, especially since the soldering rooms are relatively tight. The soldering process under Vacuum thus takes a very considerable amount of time to remove the bubbles.
Es ist auch bereits bekannt, am Ende des Lötprozesses einen Überdruck von indifferentem Gas auf das noch flüssige Lot zu geben, wodurch die restlichen Gasblasen zusammengedrückt werden und die Berührungsfläche zwischen Lot und Keramik vergrößert wird.It is also already known to have an overpressure at the end of the soldering process of indifferent gas on the still liquid solder, thereby removing the remaining Gas bubbles are compressed and the contact surface between solder and ceramic is enlarged.
Die Erfindung betrifft ein Verfahren zur Herstellung von Keramik-Metall-Verbindungen durch direktes Aufschmelzen von Lot, insbesondere Silberlot, auf die freie Keramikoberfläche unter Vakuum, bei dem die Lötstellen während des Lötprozesses nach dem Erreichen der Schmelztemperatur des Lotes mit Ultraschallwellen beschallt werden. Durch die Beschallung der Lötstellen mit Ultraschallwellen während des Lötprozesses nach dem Erreichen der Schmelztemperatur des Lotes werden die Gasblasen innerhalb sehr kurzer Zeit von der Berührungsstelle zwischen Keramik und Lot vertrieben, so daß die zeitraubende Entgasung unter Vakuum wesentlich verkürzt wird und die zusätzliche Kompressiön der Gasreste vollkommen 'unterbleiben kann.The invention relates to a method for producing ceramic-metal connections by melting solder, especially silver solder, directly onto the free ceramic surface under vacuum, where the soldering points during the soldering process after reaching the melting temperature of the solder can be exposed to ultrasonic waves. Through the Sonication of the soldering points with ultrasonic waves during the soldering process after the When the solder reaches the melting temperature, the gas bubbles become very short Time expelled from the point of contact between ceramic and solder, so that the time-consuming Degassing under vacuum is significantly shortened and the additional Kompressiön the Gas residues completely 'can be omitted.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL6448A DE868724C (en) | 1950-12-01 | 1950-12-01 | Process for producing metal-ceramic connections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL6448A DE868724C (en) | 1950-12-01 | 1950-12-01 | Process for producing metal-ceramic connections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE868724C true DE868724C (en) | 1953-02-26 |
Family
ID=7257159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL6448A Expired DE868724C (en) | 1950-12-01 | 1950-12-01 | Process for producing metal-ceramic connections |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE868724C (en) |
-
1950
- 1950-12-01 DE DEL6448A patent/DE868724C/en not_active Expired
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