DE903848C - Method for joining parts made of refractory metal, in particular thorium - Google Patents
Method for joining parts made of refractory metal, in particular thoriumInfo
- Publication number
- DE903848C DE903848C DET2847D DET0002847D DE903848C DE 903848 C DE903848 C DE 903848C DE T2847 D DET2847 D DE T2847D DE T0002847 D DET0002847 D DE T0002847D DE 903848 C DE903848 C DE 903848C
- Authority
- DE
- Germany
- Prior art keywords
- parts
- refractory metal
- joining parts
- parts made
- thorium
- 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 6
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 title description 4
- 239000003870 refractory metal Substances 0.000 title description 4
- 229910052776 Thorium Inorganic materials 0.000 title description 2
- 238000002844 melting Methods 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 150000002739 metals Chemical class 0.000 description 5
- 230000008018 melting Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 1
- 229910003452 thorium oxide Inorganic materials 0.000 description 1
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
- B23K13/00—Welding by high-frequency current heating
- B23K13/06—Welding by high-frequency current heating characterised by the shielding of the welding zone against influence of the surrounding atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Induction Heating (AREA)
Description
Die gegenseitige Verbindung von Teilen aus horchschmelzenden Metallen mit: Hilfe von Hilfsmetallen (Loten) macht in vielen: Fällen, Schwierigkeiten, da die zur Verbindung benutzten Metalle naturgemäß nicht die hohen Schmelzpunkte haben wie die miteinander zu verbindenden Metalle und infolgedessen die, Temperaturbeständigkeit der so erzeugten Körper nicht so groß ist, als wenn die Körper nur aus den, betreffenden hochschmelzenden Metallen beständen. Die Erfindung gibt nun ein einfaches Verfahren, tun hochschmelzende, Metallteile miiteinander zu verbinden; ohne daß Hilfsmetalle benutzt werden. Das Verfahren bewährte sich insbesondere zur Verbindung von Thoriumt>eilen miteinander. Solche Verbindungen von hochschmelzenden Metallen miteinander und insbesondere von Thoriumteilen werden hauptsächlich bei der Herstellung von Elektroden für elektrische Entladungsgefäße benutzt.The interconnection of parts from listening melting metals, comprising: means of auxiliary metals (solders) makes many: cases difficulties because the metals used to connect naturally not have high melting points as to be joined metals and as a result, thermal stability of the thus generated Body is not as big as if the body consisted only of the refractory metals concerned. The invention now provides a simple method of joining refractory metal parts to one another; without auxiliary metals being used. The method has proven particularly useful for connecting thorium parts to one another. Such connections of refractory metals with one another and in particular of thorium parts are mainly used in the manufacture of electrodes for electrical discharge vessels.
Gemäß der Erfindung werden, die Metallteile au:feinandergelegtund im Vakuum durch Induktion von Hochfrequenzstrom bis zur Verschweißung erhitzt.According to the invention, the metal parts are placed one on top of the other heated in a vacuum by induction of high-frequency current until it is welded.
In der Abbildung isst ein Ausführungsbeispiel für- das. Verfahren: gemäß der Erfindung dargestellt. i und 2 sind! die miteinander zu verbindenden Metallteile. Sie werden durch eine Wolframfeder 3 zusammengedrückt. Um ein Ankleben: der Wolframfeder bei der Hochfr>eque-nzerhitzung zu vermeiden, wird es in vielem: Fällen zweckmäßig sein, zwischen die Wolframfeder und die z. B. aus Thorium be,-stehenden, miteinander zu verbindenden Metallteile i und 2 einer Zwischenlage aus Thoriumoxyd od. d'gl. zu legen. Die aus der: Teilen: I, 2 und 3 bestehende Anordnung ruht auf einem Keramikblock q., der zur Aufnahme der Feder 3 einen Schlitz 5 hat. Der Block q. befindet sich auf dem Pumpteller 6, über den ein Glasglocke 7 aus einem hochschmelzenden Glas. od. dgl. gestülpt ist. über das Ganze isst die Hochfrequenzspule 8 geschoben. Wird nach dem Auspumpen der Glocke 7 durch die Spuwle 8 ein: hochfrequenter Strom geschickt, so cveiriden in den: MetaIatei#len: i und 2 Ströme indduz:i,e;rt, welche an, der Berühirungsfläche zwischen den beiden Metallteilen: einte, starke, Erhitzung hervorrufen. Man kann: diel Erhitzung an der Berührungsstelle so weit treiben, dlaß das flüssige Tho,riu:mm@etall hier austritt, ohne daß die Metallteile an anderen Steillen weich weirden oder fließen. Unter diesen Umständen i@stes.leicht möglich, an derBeirührungsstelle eine gute und zuverlässige Verbindung der Teile miteinander zu erhalten.The illustration shows an exemplary embodiment for the. Procedure: shown according to the invention. i and 2 are! the metal parts to be connected. They are compressed by a tungsten spring 3. Around a gluing: the tungsten spring To avoid overheating during high-frequency use, it becomes useful in many: cases be between the tungsten spring and the z. B. be made of thorium, standing, with one another to be connected metal parts i and 2 of an intermediate layer of thorium oxide or the like. to lay. The arrangement consisting of: Parts: I, 2 and 3 rests on a ceramic block q., which has a slot 5 for receiving the spring 3. The block q. is located on the pump plate 6, over which a bell jar 7 made of a high-melting glass. or the like. The high-frequency coil 8 is pushed over the whole thing. Will after pumping out the bell 7 through the spool 8: high-frequency current sent, so cveiriden in the: MetaIfile # len: i and 2 streams indduz: i, e; rt, which an, the Contact surface between the two metal parts: united, strong, cause heating. One can: drive the heating at the point of contact so far that the liquid is left Tho, riu: mm @ etall emerges here without the metal parts on other slopes becoming soft weirden or flow. Under these circumstances i@stes.easily possible at the contact point to obtain a good and reliable connection between the parts.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET2847D DE903848C (en) | 1941-08-02 | 1941-08-02 | Method for joining parts made of refractory metal, in particular thorium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET2847D DE903848C (en) | 1941-08-02 | 1941-08-02 | Method for joining parts made of refractory metal, in particular thorium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE903848C true DE903848C (en) | 1954-02-11 |
Family
ID=7544119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DET2847D Expired DE903848C (en) | 1941-08-02 | 1941-08-02 | Method for joining parts made of refractory metal, in particular thorium |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE903848C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE976319C (en) * | 1952-01-01 | 1963-07-04 | Siemens Ag | Process for feeding vertical cable jacketing presses with inductively heated metal bolts and device for carrying out the process |
| DE1427328B1 (en) * | 1961-02-07 | 1969-11-06 | Nikolaj Fedotowitsch Kasakow | Process for butt, melt-free joining of metallic and / or ceramic materials under the application of pressure and keeping air away |
-
1941
- 1941-08-02 DE DET2847D patent/DE903848C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE976319C (en) * | 1952-01-01 | 1963-07-04 | Siemens Ag | Process for feeding vertical cable jacketing presses with inductively heated metal bolts and device for carrying out the process |
| DE1427328B1 (en) * | 1961-02-07 | 1969-11-06 | Nikolaj Fedotowitsch Kasakow | Process for butt, melt-free joining of metallic and / or ceramic materials under the application of pressure and keeping air away |
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