DE966696C - Connection of electrodes for electron tubes with insulating parts by flexible intermediate bodies - Google Patents
Connection of electrodes for electron tubes with insulating parts by flexible intermediate bodiesInfo
- Publication number
- DE966696C DE966696C DEL9414A DEL0009414A DE966696C DE 966696 C DE966696 C DE 966696C DE L9414 A DEL9414 A DE L9414A DE L0009414 A DEL0009414 A DE L0009414A DE 966696 C DE966696 C DE 966696C
- Authority
- DE
- Germany
- Prior art keywords
- electrodes
- plastic
- insulating parts
- masses
- connection
- 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
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- 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
- C04B37/028—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles by means of an interlayer consisting of an organic adhesive, e.g. phenol resin or pitch
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/04—Joining glass to metal by means of an interlayer
- C03C27/048—Joining glass to metal by means of an interlayer consisting of an adhesive specially adapted for that purpose
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
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- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
- C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
-
- 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
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
-
- 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
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/40—Metallic
-
- 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
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/59—Aspects relating to the structure of the interlayer
- C04B2237/592—Aspects relating to the structure of the interlayer whereby the interlayer is not continuous, e.g. not the whole surface of the smallest substrate is covered by the interlayer
-
- 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
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/84—Joining of a first substrate with a second substrate at least partially inside the first substrate, where the bonding area is at the inside of the first substrate, e.g. one tube inside another tube
-
- 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
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/88—Joining of two substrates, where a substantial part of the joining material is present outside of the joint, leading to an outside joining of the joint
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0002—Construction arrangements of electrode systems
- H01J2893/0005—Fixing of electrodes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Insulating Bodies (AREA)
Description
In Vakuumgefäßen, insbesondere Elektronenröhren, besteht häufig die Aufgabe, eine Mehrzahl von Teilen miteinander zu verbinden, derart, daß sie zwar fest aneinander sitzen, aber doch nicht starr miteinander verbunden sind. Man hat in diesen Fällen häufig einen geeigneten Sitz von starren Körpern in federnden Körpern angewandt, wie z. B. die reibende Führung von Metallstäben in Löchern von Glimmerbrücken. Es sind bereits Anordnungen zur Halterung der Elektroden einer Isolierbrücke mit Durchgangsöffnungen, die größer sind als der Durchmesser der betreffenden Elektroden bzw. Elektrodenstützen, bekannt, bei welchen die durch die Öffnungen hindurchragenden Elektroden bzw. Elektrodenstützen durch eine Feder an die Ränder der Öffnungen angedrückt werden, derart, daß eine Längsausdehnung möglich ist, eine seitliche Bewegung jedoch verhindert wird.In vacuum vessels, in particular electron tubes, there is often the task of a plurality to connect parts with each other in such a way that they sit tightly together, but not are rigidly connected to each other. In these cases one often has a suitable fit of rigid Bodies applied in resilient bodies, such as. B. the frictional guidance of metal rods in Holes in mica bridges. There are already arrangements for holding the electrodes Insulating bridge with through openings that are larger than the diameter of the electrodes concerned or electrode supports, known, in which the protruding through the openings Electrodes or electrode supports pressed against the edges of the openings by a spring such that longitudinal expansion is possible but lateral movement is prevented.
Es sind auch elektrische Entladungsgefäße bekannt, in deren Innerem mehrere spannungsführende Leiter mit isolierenden Stützteilen befestigt sind, bei welchen zur Herabsetzung der elektrischen Feldstärke in der Nähe der Leiter der Achsenabstand der Leiter sich zu ihrem Halbmesser ungefähr wie 5,85 : 1 verhält und die Leiter wenigstens an den Berührungspunkten einen mehrfach so großen Querschnitt und damit eine geringere Oberflächenkrümmung besitzen, als für die Festigkeit und die elektrische Leitfähigkeit notwendig ist.Electrical discharge vessels are also known, in the interior of which there are several live Conductors are attached with insulating support parts, in which to reduce the electrical Field strength in the vicinity of the conductor is the axial distance of the conductor to its radius behaves roughly like 5.85: 1 and the conductors at least one multiple at the contact points have such a large cross-section and thus a smaller surface curvature than for the Strength and electrical conductivity is necessary.
Weiterhin wurde bei einer elektrischen Entladungsröhre mit einem Elektrodensystem, beiFurthermore, an electric discharge tube with an electrode system
709 662/91709 662/91
dem zwei oder mehrere Elektroden mittels wenigstens aus einem Gebilde von zwei oder mehr sich teilweise bedeckenden Teilen bestehenden blattförmigen Isolierorgans zentriert werden, vorgeschlagen, einen der zusammenwirkenden Isolierteile mit zwei gegenüberliegenden Zungen zu versehen, welche an einem Elektrodenteil anliegen und eine solche Länge haben, daß sie nach erfolgtem Ausbiegen aus der Fläche des plattenförmigen Teiles an der Elektrode anliegen. Diese Verbindungen sind in manchen Fällen noch nicht fest genug oder aber so fest, daß Verbiegungen an Teilen vor-the two or more electrodes by means of at least one structure of two or more partially covering parts of the existing sheet-shaped insulating member are proposed, to provide one of the cooperating insulating parts with two opposite tongues, which bear against an electrode part and have such a length that they are after Bending out of the surface of the plate-shaped part rest against the electrode. These connections are in some cases not yet firm enough or so firm that parts are bent
* kommen. Außerdem neigen Teile, die auf diese Art miteinander verbunden sind und notgedrungen ein gewisses Spiel haben, insbesondere wenn sich durch Wärmeausdehnung zwangläufig Änderungen ergeben, zur Ausbildung von Schwingungen, die die Funktion der Röhre stören können. Es ist bekannt, daß Schwingungen eines der Gitter von Elektronenröhren zu akustischen Störungen führen. Bei all diesen bekannten Anordnungen handelt es sich um federnde Halterungen, die besonders angefertigt werden müssen und für welche besondere Halterungen benötigt werden. Ferner müssen die bekannten Anordnungen ziemlich große Abmessungen aufweisen, um überhaupt eine Federwirkung zu erzielen.* come. In addition, parts that are connected to one another in this way tend to collapse have a certain amount of play, especially when changes inevitably occur due to thermal expansion result in the formation of vibrations that can disrupt the function of the tube. It is known, that vibrations of one of the grids of electron tubes lead to acoustic disturbances. All of these known arrangements are resilient mounts that are customized must be and for which special brackets are required. Furthermore, the known arrangements have fairly large dimensions to have a spring action at all to achieve.
Diese Nachteile werden durch die Erfindung beseitigt, zum mindesten jedoch stark verkleinert.These disadvantages are eliminated by the invention, but at least greatly reduced.
Die Verbindung von Elektroden für Elektronenröhren mit Isolierteilen durch nachgiebige Zwischenkörper wird nach der Erfindung dadurch erreicht, daß als nachgiebige Zwischenkörper plastische oder stark dehnbare, vakuum- und temperaturfeste Massen, wie z. B. Silikone, verwendet sind. Diese Masse bewirkt eine Verminderung der Beweglichkeit der beiden Körper gegeneinander, ohne daß die Verbindung starr ist. Die plastische Masse bewirkt außerdem eine Dämpfung von Schwingungsvorgängen, die zwischen den beiden Körpern durch elektrische, akustische oder mechanische Kräfte erregt sein können. Die Wirkung ist ähnlich, wie sie beim Schwingmetall im Maschinenbau bekanntgeworden ist, bei dem bekanntlich eine innige Verbindung zwischen Metallteilen und Gummiunterlagen oder -zwischenlagen hergestellt und auf diese Weise eine starre Verbindung zwischen den einzelnen Maschinenteilen vermieden ist, ohne daß die Festigkeit der Verbindung dadurch leidet. Die plastischen oder stai-k dehnbaren Massen können weiterhin zur Erhöhung der Oberflächenisolation von Isolierteilen und ferner zur Isolierung von Elektrodenteilen Verwendung finden.The connection of electrodes for electron tubes with insulating parts by flexible intermediate bodies is achieved according to the invention in that plastic or highly flexible, vacuum and temperature-resistant materials, such as, for. B. Silicones are used. This mass causes a reduction in the mobility of the two bodies against each other without the connection being rigid. The plastic mass also dampens vibration processes that can be excited between the two bodies by electrical, acoustic or mechanical forces. The effect is similar to that which has become known with Schwingmetall in mechanical engineering, in which, as is well known, an intimate connection is established between metal parts and rubber pads or liners and in this way a rigid connection between the individual machine parts is avoided without the strength of the connection suffering . The plastic or stai - k stretchable materials may continue to find to increase the surface insulation of insulating parts, and further for the isolation of the electrode parts use.
Voraussetzung für die Anwendung derartiger plastischer Massen in Vakuumgefäßen mit elektronenemittierenden Kathoden ist die Möglichkeit, diese Massen in ähnlicher Weise wie die in den Röhren befindlichen Metallisolierteile zu entgasen. Deshalb kommen nur plastische Stoffe in Frage, die entsprechend hohe Temperaturen während des Pumpprozesses und des späteren Betriebes vertragen und die außerdem die Eigenschaft haben, die im ihnen enthaltenen Gase während des Pumppro'zesses abzugeben und im späteren Verlauf einen niedrigen Dampfdruck zu haben. Die früher angewandten Kittmittel, wie Aluminiumoxyd u. dgl. haben diese guten vakuumtechnischen Eigenschaften; sie sind jedoch nicht plastisch, d. h., nach erfolgter Erhitzung sind sie starr und spröde. Derartige Massen scheiden also für vorliegenden Zweck aus. Gut geeignet sind die neuerdings bekanntgewordenen Silikone, die teilweise Temperaturbeständigkeiten bis über 4000 aufweisen und die auch mit Lösungsmitteln verdünnt werden können, die im Vakuum sehr schnell verdampfen, wie z. B. Xylol.A prerequisite for the use of such plastic masses in vacuum vessels with electron-emitting cathodes is the possibility of degassing these masses in a manner similar to the metal insulating parts located in the tubes. Therefore, only plastic materials come into question, which can withstand correspondingly high temperatures during the pumping process and later operation and which also have the property of releasing the gases contained in them during the pumping process and later having a low vapor pressure. The cementing agents used earlier, such as aluminum oxide and the like, have these good vacuum properties; however, they are not plastic, that is, after heating has taken place, they are rigid and brittle. Such masses are therefore ruled out for the present purpose. The recently known silicones are well suited, some of which have temperature resistance up to over 400 0 and which can also be diluted with solvents that evaporate very quickly in a vacuum, such as. B. xylene.
Die Auftragung der plastischen oder elastischen Verbindung kann auf sehr mannigfache Weise, z. B. durch Spritzen, Streichen oder Tauchen, erfolgen. Einige Beispiele für die Verbindung einer Isolierscheibe und eines zylindrischen Metallstabes sollen die Erfindung erläutern.The application of the plastic or elastic connection can be done in a variety of ways, e.g. B. by spraying, brushing or dipping. Some examples of the connection of an insulating washer and a cylindrical metal rod are intended to illustrate the invention.
In- Fig. ι ist 1 ein Metallzylinder, der in der Isolierscheibe 2 zu befestigen ist. Die Bohrung3 in der Glimmerscheibe hat einen etwas größeren Durchmesser als der Metallzylinder 1. Infolgedessen kann sich der Metallzylinder seitlich bewegen. Diese Bewegung wird verhindert, indem entsprechend Fig. 2 die Isolierscheibe 2 mit einer plastischen oder elastischen Haut 4 überzogen wird, die bei der Montage vom Metallzylinder durchstochen wird und diesen infolgedessen eng umschließt.In Fig. Ι 1 is a metal cylinder that is in the Insulating washer 2 is to be attached. The hole 3 in the mica washer has a slightly larger one Diameter than the metal cylinder 1. As a result, the metal cylinder can move sideways. This movement is prevented by the insulating washer 2 with a plastic or elastic skin 4 is covered, which during assembly of the metal cylinder is pierced and consequently encloses it tightly.
In Fig. 3 ist die plastische Haut 4 unter der Isolierscheibe angebracht, so daß beim Durchstoßen des Metallzylinders diese sich in den Zwischenraum zwischen Isolierscheibe und Metallzylinder schiebt.In Fig. 3 the plastic skin 4 is under the insulating washer attached so that when piercing the metal cylinder this is in the space between the insulating washer and the metal cylinder.
Fig. 4 zeigt eine andere Art der Befestigung. Die plastische oder elastische Masse ist nachträg-Hch aufgebracht. Sie haftet fest auf der Isolierscheibe und am Metallzylinder. Der Metallzylinder kann, ebenso wie der in Fig. 1, 2 und 3, kleine axiale oder radiale Bewegungen: ausführen; diese Bewegungen sind aber gedämpft. Fig. 5 zeigt eine möglichst feste Verbindung, die eine Bewegung der Teile gegeneinander weitgehend unterdrückt, ohne daß die Verbindung vollständig starr ist.Fig. 4 shows another type of attachment. The plastic or elastic mass is subsequently high upset. It adheres firmly to the insulating washer and the metal cylinder. The metal cylinder can, like that in Fig. 1, 2 and 3, small axial or radial movements: perform; these However, movements are muted. Fig. 5 shows a connection as strong as possible, a movement of the Parts are largely suppressed against each other without the connection being completely rigid.
Verwendet man plastische oder elastische Materialien mit sehr hohem elektrischem Widerstand, so· kann ein Überziehen von-Isolierteilen auch zur Erhöhung der Oberflächenisolation verwendet werden, insbesondere, wenn man der aufgetragenen Schicht eine rauhe Oberfläche gibt, was z. B. durch streifenförmiges Auftragen " oder durch Prägen leicht möglich ist.If plastic or elastic materials with a very high electrical resistance are used, a covering of insulating parts can also be used to increase the surface insulation, especially if you give the applied layer a rough surface, which z. B. by strip-shaped application "or by embossing is easily possible.
Es können aber auch Metallteile, die in Vakuumröhren eingebaut werden sollen, mit derartigen Massen überzogen werden, um sie zu isolieren. 1.2aBut it can also be metal parts that are to be installed in vacuum tubes with such Masses are coated to isolate them. 1.2a
Claims (4)
Deutsche Patentschriften Nr. 656 004, 746 722.Considered publications:
German patent specifications No. 656 004, 746 722.
Deutsches Patent Nr. 824 522.Cited earlier rights:
German Patent No. 824 522.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL9414A DE966696C (en) | 1951-06-27 | 1951-06-27 | Connection of electrodes for electron tubes with insulating parts by flexible intermediate bodies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL9414A DE966696C (en) | 1951-06-27 | 1951-06-27 | Connection of electrodes for electron tubes with insulating parts by flexible intermediate bodies |
Publications (1)
Publication Number | Publication Date |
---|---|
DE966696C true DE966696C (en) | 1957-09-05 |
Family
ID=7257970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL9414A Expired DE966696C (en) | 1951-06-27 | 1951-06-27 | Connection of electrodes for electron tubes with insulating parts by flexible intermediate bodies |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE966696C (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE656004C (en) * | 1933-02-07 | 1938-01-27 | Telefunken Gmbh | Arrangement for holding the electrodes of a discharge tube in an insulating bridge with through openings that are larger than the diameter of the electrodes or electrode supports concerned |
DE746722C (en) * | 1934-08-03 | 1944-08-18 | Allg Elek Citaes Ges | Electrical discharge vessel, inside of which several live conductors with insulating support parts are attached |
DE824522C (en) * | 1948-06-15 | 1951-12-13 | Philips Nv | Electric discharge tubes |
-
1951
- 1951-06-27 DE DEL9414A patent/DE966696C/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE656004C (en) * | 1933-02-07 | 1938-01-27 | Telefunken Gmbh | Arrangement for holding the electrodes of a discharge tube in an insulating bridge with through openings that are larger than the diameter of the electrodes or electrode supports concerned |
DE746722C (en) * | 1934-08-03 | 1944-08-18 | Allg Elek Citaes Ges | Electrical discharge vessel, inside of which several live conductors with insulating support parts are attached |
DE824522C (en) * | 1948-06-15 | 1951-12-13 | Philips Nv | Electric discharge tubes |
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