DE1034279B - Method for soldering the grid wires to the bars in tension grids for electrical discharge vessels - Google Patents
Method for soldering the grid wires to the bars in tension grids for electrical discharge vesselsInfo
- Publication number
- DE1034279B DE1034279B DES38016A DES0038016A DE1034279B DE 1034279 B DE1034279 B DE 1034279B DE S38016 A DES38016 A DE S38016A DE S0038016 A DES0038016 A DE S0038016A DE 1034279 B DE1034279 B DE 1034279B
- Authority
- DE
- Germany
- Prior art keywords
- soldering
- spars
- electrical discharge
- grid
- bars
- 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.)
- Pending
Links
- 238000005476 soldering Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 8
- 210000000078 claw Anatomy 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 238000010618 wire wrap Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/0022—Manufacture
- H01J2893/0024—Planar grids
Landscapes
- Electron Sources, Ion Sources (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft ein Verfahren zur Verlötung der Gitterdrähte mit den Holmen eines aus Querverstrebungen und Holmen bestehenden Spannrahmens bei Spanngittern für elektrische Entladungsgefäße. The invention relates to a method for soldering the grid wires to the spars of a cross brace and spars of existing tensioning frames in tensioning grids for electrical discharge vessels.
Es ist bereits bei Glaseinschmelzungen bekannt, eine Metall-Glas-Einschmelzung durch Erhitzung des Metalls mittels Stromdurchgang zu erreichen.It is already known for glass seals, a metal-glass seal by heating the Metal by means of current passage.
Weiterhin ist es bei der Entgasung von Elektronenröhren bekannt, an die beiden Gitterholme des Gitters eine Spannungsquelle anzuschließen und die Gitterdrähte mittels Stromdurchgang zu erhitzen. Zur Verlötung der Gitterdrähte mit den Holmen bei Spanngittern wurde bisher das gesamte Gitter in einem Ofen erwärmt.It is also known for the degassing of electron tubes to attach to the two bars of the grid to connect a voltage source and to heat the grid wires by means of current passage. For soldering the grid wires with the spars in tension grids was previously the entire grid in one Oven warmed up.
In der Löttechnik ist es bekannt, mittels Stromdurchgang durch zwei Elektroden eine Wärmeerzeugungszone an der Angrenzungsstelle der Elektroden zu schaffen, damit bei einer von der Angrenzungsstelle entfernt liegenden Lötstelle die Verlötung vor sich geht.In soldering technology, it is known to create a heat generation zone by means of the passage of current through two electrodes to create at the abutment point of the electrodes, thus at one of the abutment point distant soldering point the soldering is going on.
Der Erfindung liegt die Aufgabe zugrunde, die Temperatureinwirkung auf die gespannten Gitterdrähte während des Lötprozesses weitgehend zu vermindern. The invention is based on the object of the temperature effect on the tensioned grid wires to be largely reduced during the soldering process.
Die Lösung der Aufgabe bei einem Verfahren zur Verlötung der Gitterdrähte mit den Holmen eines aus Ouerverstrebungen und Holmen bestehenden Spannrahmens bei Spanngittern für elektrische Entladungsgefäße besteht nach der Erfindung darin, daß die beiderseitigen Holmenenden in Anschlußklauen eingespannt werden und die Verlötung durch Erhitzen der Holme mittels Stromdurchgang so erfolgt, daß die Holme in Längsrichtung vom Strom durchflossen werden und die Querverstrebungen keinen Strom führen.The solution to the problem with a method for soldering the grid wires to the spars of one Ouerverstrebungen and spars existing tensioning frame in tension grids for electrical discharge vessels according to the invention is that the two-sided Spar ends are clamped in connection claws and the soldering by heating the spars are carried out by means of current passage so that the spars flowed through the spars in the longitudinal direction of the current and the cross braces do not carry any electricity.
Die Vorteile dieses Verfahrens bestehen darin, daß der Arbeitsgang des Nachreckens des Spanngitters wegfällt und daß durch die gute Wärmeableitung der Klauen eine sich mit der Zeit zu den Holmenenden ausdehnende Glühzone geschaffen wird, deren Länge ein gutes Maß für die Glühdauer darstellt.The advantages of this method are that the operation of post-stretching the tensioning grid disappears and that, due to the good heat dissipation of the claws, one moves to the spar ends over time expanding annealing zone is created, the length of which is a good measure of the annealing time.
Die mit einem Goldüberzug versehenen Gitterholme können durch Stromdurchgang in reduzierender oder neutraler Atmosphäre oder auch im Vakuum über den Goldschmelzpunkt hinaus erhitzt werden, so daß eine Verlötung der Drähte an den Holmen erfolgt.The lattice bars, which are provided with a gold coating, can be reduced by the passage of current or in a neutral atmosphere or in a vacuum above the gold melting point, so that the wires are soldered to the spars.
An Hand der Zeichnung soll die Erfindung näher erläutert werden. Die Zeichnung zeigt eine in eine
Haltevorrichtung eingespannte Spanngitterelektrode. Das Spanngitter besteht aus einer Gitterwicklung 1,
die sich auf den Holmen 2 und 3 befindet. Die Holme 2 und 3 sind durch die Querversteifungen 4, S und 6, 7
zu einem starren Rahmen miteinander verfestigt. Die Verfahren zur Verlötung der Gitterdrähte
mit den Holmen bei Spanngittern
für elektrische EntladungsgefäßeThe invention is to be explained in more detail with reference to the drawing. The drawing shows a clamping grid electrode clamped in a holding device. The tension grid consists of a grid winding 1, which is located on the bars 2 and 3. The bars 2 and 3 are strengthened by the cross stiffeners 4, S and 6, 7 to form a rigid frame. The procedure for soldering the grid wires to the spars in tension grids
for electrical discharge vessels
Anmelder:Applicant:
Siemens & Halske Aktiengesellschaft,Siemens & Halske Aktiengesellschaft,
Berlin und München,
München 2, Wittelsbacherplatz 2Berlin and Munich,
Munich 2, Wittelsbacherplatz 2
DipL-Phys. Karl Poeverlein, Frankfurt/M.,
und Helmut Trautwein, München,
sind als Erfinder genannt wordenDiploma Phys. Karl Poeverlein, Frankfurt / M.,
and Helmut Trautwein, Munich,
have been named as inventors
beiden Holme 2 und 3, ebenso auch die Querversteifungen bestehen zweckmäßig aus Molybdän, während die Drahtbewicklung aus Wolfram, insbesondere thoriertem Wolframdraht, bestehen kann. Wenn in bisher üblicher Weise das ganze Gitter in einem Ofen der Löttemperatur ausgesetzt würde, wäre nicht zu vermeiden, daß durch die Erhitzung der Querstreben erhebliche Kräfte auf die gespannten Drähte einwirken, denn Molybdän hat einen höheren thermischen Ausdehnungskoeffizienten als Wolfram. Nach Erkalten des Gitters besitzen die Wolframdrähte dann nicht mehr die gewünschte Spannung, und es wäre notwendig, durch geeignete Maßnahmen, z. B. nachträgliches Querrecken, das Gitter wieder so zu verformen, daß die nötigen Zugspannungen an den Gitterdrähten auftreten. Durch die Erfindung wird jedoch ein nachträgliches Querrecken der Gitter entbehrlich gemacht. Beim Verlöten mittels Stromdurchgang wird das Gitter mit den oberen und unteren Enden der Holme in geeignete Anschlußklauen 8, 9 und 10, 11 fest eingespannt. Es wird nun eine Spannung angelegt, wobei der eine Pol an den Klauen 8, 9 und der andere an den Klauen 9, 10 liegt, so daß die Ströme in Richtung längs der Holme fließen und die Gitterdrähte sowie die Ouerverstrebungen keinen Strom führen.Both spars 2 and 3, as well as the cross stiffeners are expediently made of molybdenum, while the wire wrapping can consist of tungsten, in particular thoriated tungsten wire. If in The usual way up to now would be to expose the entire grid to the soldering temperature in an oven avoid that considerable forces act on the tensioned wires due to the heating of the cross braces, because molybdenum has a higher coefficient of thermal expansion than tungsten. After cooling down of the grid, the tungsten wires no longer have the desired voltage, and it would be necessary to through appropriate measures, e.g. B. subsequent transverse stretching to deform the grid again in such a way that that the necessary tensile stresses occur on the grid wires. However, the invention is a subsequent Transverse stretching of the grid made dispensable. When soldering by means of electrical continuity, the Grid with the upper and lower ends of the spars in suitable connection claws 8, 9 and 10, 11 firmly clamped. A voltage is now applied, with one pole on the claws 8, 9 and the other on the Claws 9, 10 is so that the currents flow in the direction along the spars and the grid wires as well the cross struts do not carry electricity.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES38016A DE1034279B (en) | 1954-03-06 | 1954-03-06 | Method for soldering the grid wires to the bars in tension grids for electrical discharge vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES38016A DE1034279B (en) | 1954-03-06 | 1954-03-06 | Method for soldering the grid wires to the bars in tension grids for electrical discharge vessels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1034279B true DE1034279B (en) | 1958-07-17 |
Family
ID=7482786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES38016A Pending DE1034279B (en) | 1954-03-06 | 1954-03-06 | Method for soldering the grid wires to the bars in tension grids for electrical discharge vessels |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1034279B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR854182A (en) * | 1938-12-21 | 1940-04-06 | Radio Electr Soc Fr | Improvements to multi-electrode tubes |
| DE738827C (en) * | 1939-02-28 | 1943-09-10 | Telefunken Gmbh | Glass-metal sealing for vacuum tubes |
| GB600257A (en) * | 1944-12-21 | 1948-04-05 | Herbert Edward Holman | Improvements in or relating to the manufacture of grids for use in electron discharge devices |
| US2507709A (en) * | 1946-09-26 | 1950-05-16 | Bell Telephone Labor Inc | Grid electrode and method of manufacture |
| DE856488C (en) * | 1944-05-13 | 1952-11-20 | Watt Gluehlampen Und Elek Zita | Process for achieving tight penetrations of metallic parts through glass or glass-like materials |
-
1954
- 1954-03-06 DE DES38016A patent/DE1034279B/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR854182A (en) * | 1938-12-21 | 1940-04-06 | Radio Electr Soc Fr | Improvements to multi-electrode tubes |
| DE738827C (en) * | 1939-02-28 | 1943-09-10 | Telefunken Gmbh | Glass-metal sealing for vacuum tubes |
| DE856488C (en) * | 1944-05-13 | 1952-11-20 | Watt Gluehlampen Und Elek Zita | Process for achieving tight penetrations of metallic parts through glass or glass-like materials |
| GB600257A (en) * | 1944-12-21 | 1948-04-05 | Herbert Edward Holman | Improvements in or relating to the manufacture of grids for use in electron discharge devices |
| US2507709A (en) * | 1946-09-26 | 1950-05-16 | Bell Telephone Labor Inc | Grid electrode and method of manufacture |
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