DE923075C - Process for burning out organic fibers from the system of an electron tube - Google Patents
Process for burning out organic fibers from the system of an electron tubeInfo
- Publication number
- DE923075C DE923075C DET7263A DET0007263A DE923075C DE 923075 C DE923075 C DE 923075C DE T7263 A DET7263 A DE T7263A DE T0007263 A DET0007263 A DE T0007263A DE 923075 C DE923075 C DE 923075C
- Authority
- DE
- Germany
- Prior art keywords
- organic fibers
- electron tube
- burning out
- atmosphere
- out organic
- 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 7
- 239000000835 fiber Substances 0.000 title claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- 238000000137 annealing Methods 0.000 claims description 2
- 238000007872 degassing Methods 0.000 claims description 2
- 239000000567 combustion gas Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Furnace Details (AREA)
Description
Verfahren zum Ausbrennen von organischen Fasern aus dem System einer Elektronenröhre Es ist bekannt, daß bei der Fertigung von Elektronenröhren die Schwierigkeit besteht, organische Fasern, die als Fusseln bezeichnet werden, aus dem Röhrensystem zu entfernen. Teilweise ist es zwar üblich, Einzelteile eines Röhrensystems vor dem Zusammenbau zu glühen. Man erreicht damit eine weitgehende Beseitigung der Fusseln. Während des Aufbaues des Systems können jedoch neue Fusseln in das System gelangen, die die Abstände der einzelnen Elektroden, z. B. Kathode-Gitter, überbrücken und damit die Röhre unbrauchbar machen.Process for burning out organic fibers from the system of a Electron Tube It is known that in the manufacture of electron tubes, the difficulty consists of organic fibers called lint from the pipe system to remove. In some cases it is common to present individual parts of a pipe system to glow when assembled. This largely eliminates the lint. However, while the system is being set up, new lint can get into the system, the distances between the individual electrodes, e.g. B. Cathode grid, bridge and thus making the tube unusable.
Man hat zunächst versucht, die fertigen. Aufbauten nochmals zu glühen. Es hat sich aber gezeigt, daß selbst beim Glühen an Luft, an Stelle des üblichen Schutzgases, die Umsetzung der Fusseln bis zur Kohlenstofffreiheit bei den aus praktischen Gründen zulässigen Temperaturen nicht möglich ist. Die Wahl der Temperatur ist begrenzt wegen der sonst auftretenden Schädigung von Systemteilen, insbesondere der Glimmerteile und der Kathode.One tried first to finish. To anneal the superstructures again. But it has been shown that even when glowing in air, instead of the usual Protective gas, the implementation of the lint up to carbon-free in the case of practical Reasons permissible temperatures is not possible. The choice of temperature is limited because of the otherwise occurring damage to system parts, especially the mica parts and the cathode.
Zur Beseitigung dieser Schwierigkeit wird gemäß der Erfindung vorgeschlagen, die Röhrenaufbauten kurzzeitig in einer Atmosphäre, die mehr Sauerstoff enthält als atmosphärische Luft, insbesondere in einer Atmosphäre aus reinem Sauerstoff, ,b;ei etwa 6oo°' C auszubrennen. Dia Reaktion geht dann so energisch vor sich, daß die organischen Bestandteile unter Aufglimmen restlos entfernt werden. Angelaufene Systemteile werden nötigenfalls durch geeignete Nachbehandlung im HZ-Ofen reduziert.To eliminate this difficulty, it is proposed according to the invention, the tube assemblies briefly in an atmosphere that contains more oxygen as atmospheric air, especially in an atmosphere of pure oxygen, to burn out about 600 ° C. The reaction then proceeds so vigorously that the organic components are completely removed with a glow. Started If necessary, system parts are reduced by suitable post-treatment in the HZ furnace.
Zur Beseitigung der erwähnten Fusseln wird es sich gegebenenfalls empfehlen, den Glühvorgang derart vorzunehmen, daß in den das System enthaltenden Röhrenkolben das .die Verbrennung fördernde Gas während des Entgasungsvorganges eingeblasen wird. Nach dem Abpumpen des Sauerstoffes kann wiederum eine Reduktion in Wasserstoffatmosphäre durch Einlassen von Wasserstoff in den Röhrenkolben vorgenommen werden.It will be necessary to remove the lint mentioned recommend the annealing process in such a way that the system Tubular piston containing the .the combustion promoting gas during the degassing process is blown in. After pumping out the oxygen, a reduction can again be made made in a hydrogen atmosphere by admitting hydrogen into the tubular flask will.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET7263A DE923075C (en) | 1953-01-15 | 1953-01-15 | Process for burning out organic fibers from the system of an electron tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET7263A DE923075C (en) | 1953-01-15 | 1953-01-15 | Process for burning out organic fibers from the system of an electron tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE923075C true DE923075C (en) | 1955-02-03 |
Family
ID=7545530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DET7263A Expired DE923075C (en) | 1953-01-15 | 1953-01-15 | Process for burning out organic fibers from the system of an electron tube |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE923075C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1238576B (en) * | 1965-05-12 | 1967-04-13 | Siemens Ag | Method and device for rendering foreign matter particles harmless by short-term exposure from electrically and / or magnetically operating electrode systems |
-
1953
- 1953-01-15 DE DET7263A patent/DE923075C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1238576B (en) * | 1965-05-12 | 1967-04-13 | Siemens Ag | Method and device for rendering foreign matter particles harmless by short-term exposure from electrically and / or magnetically operating electrode systems |
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