FR2017710A1 - Sinter glass base prodn for high-vacuum - tubes - Google Patents
Sinter glass base prodn for high-vacuum - tubesInfo
- Publication number
- FR2017710A1 FR2017710A1 FR6930415A FR6930415A FR2017710A1 FR 2017710 A1 FR2017710 A1 FR 2017710A1 FR 6930415 A FR6930415 A FR 6930415A FR 6930415 A FR6930415 A FR 6930415A FR 2017710 A1 FR2017710 A1 FR 2017710A1
- Authority
- FR
- France
- Prior art keywords
- tube
- prodn
- tubes
- vacuum
- glass base
- 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.)
- Withdrawn
Links
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
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/32—Sealing leading-in conductors
-
- 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
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/30—Manufacture of bases
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Compressor (AREA)
Abstract
Metallic bushings and a glass tube (pump tube) are secured to prevent movement and fused together in a sinter mould, with glass powder, to a tube base. A metal spike (Ni), contained in a central clearance of a sinter mould part, has a free part slightly reduced towards its end and is inside the pump tube to prevent the inside wall of the tube distorting. The spike material has a coefficient of thermal expansion > the glass used for the pump tube (pref. 1.2 to 4 times).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1351468A CH498781A (en) | 1968-09-10 | 1968-09-10 | Process for the production of glass feet for tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2017710A1 true FR2017710A1 (en) | 1970-05-22 |
Family
ID=4393070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6930415A Withdrawn FR2017710A1 (en) | 1968-09-10 | 1969-09-08 | Sinter glass base prodn for high-vacuum - tubes |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH498781A (en) |
DE (1) | DE1931332B2 (en) |
FR (1) | FR2017710A1 (en) |
-
1968
- 1968-09-10 CH CH1351468A patent/CH498781A/en not_active IP Right Cessation
-
1969
- 1969-06-20 DE DE19691931332 patent/DE1931332B2/en active Granted
- 1969-09-08 FR FR6930415A patent/FR2017710A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE1931332A1 (en) | 1970-07-09 |
DE1931332B2 (en) | 1975-09-25 |
CH498781A (en) | 1970-11-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1329610A (en) | End fitting for rods | |
AT345003B (en) | Dense sintered hard metal material | |
JPS5259612A (en) | Manufacture of metal nitride sintered mold bodies | |
ZA718056B (en) | Metal powder and the production thereof | |
IT1018735B (en) | COPPER ALLOY FOR THE MANUFACTURE OF MOLDS AND MOLDS OBTAINED WITH THE SAID ALLOY | |
IT999914B (en) | PROCEDURE FOR THE MANUFACTURE OF PREFORMED METALLIC POWDERS | |
IT1011325B (en) | PIECES CAST IN ALLOY WITH LOW COEFFICIENT OF THERMAL EXPANSION | |
FR2368970A1 (en) | SYRINGE PLUNGER | |
IL36818A (en) | Process for the preparation of finely-divided metal oxide and sintered objects produced therefrom | |
FR2017710A1 (en) | Sinter glass base prodn for high-vacuum - tubes | |
IT990070B (en) | SINTERED ALLOY OF ALUMINUM RE HOT SISTENT | |
GB952392A (en) | A mould structure for use in the production of jiggered ware | |
GB990620A (en) | A friction body of sintered friction material | |
FI892568A (en) | KOPPAR-VOLFRAM-METALLEGERING OCH FOERFARANDE. | |
SE392916B (en) | SINTERED, METALLIC PRESS ROD CONTAINING CARBIDES, AND COMPOSITION FOR MANUFACTURE OF THE PRESS ROD | |
GB1418198A (en) | Furnace charge supports | |
FR2306661A1 (en) | Glass for cold drinks - has lower portion with double walls forming sealed annular chamber for water | |
FR2272433A1 (en) | Water-tight wrist watch casing - moulded from inoxidisable sintered metal powder with inner metal sleeve enclosing watch mechanism | |
USD175154S (en) | Lamp base or similar article | |
GB1046750A (en) | Articles composed of metal and glass | |
JPS5351490A (en) | Sealing jig for air-proof terminal | |
JPS5313363A (en) | Manufacture of semiconductor device | |
FR1314381A (en) | Copper-based alloy and process for its manufacture | |
FR1291606A (en) | Improvement in the process of making ice on melted metal | |
BRANDIS et al. | Solubility of molybdenum and tungsten in nickel alloys at 1200 deg C(Saturation curves and solid solution ranges of molybdenum and tungsten in various nickel alloys) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |