GB976508A - Improvements relating to methods of locally strengthening cathode-ray tubes - Google Patents
Improvements relating to methods of locally strengthening cathode-ray tubesInfo
- Publication number
- GB976508A GB976508A GB1758461A GB1758461A GB976508A GB 976508 A GB976508 A GB 976508A GB 1758461 A GB1758461 A GB 1758461A GB 1758461 A GB1758461 A GB 1758461A GB 976508 A GB976508 A GB 976508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glaze
- tube
- efficient
- approximately
- zone
- 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 abstract 2
- 238000005728 strengthening Methods 0.000 title abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract 3
- 239000011521 glass Substances 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 239000000020 Nitrocellulose Substances 0.000 abstract 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 abstract 1
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 1
- 235000019441 ethanol Nutrition 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920001220 nitrocellulos Polymers 0.000 abstract 1
- 229940079938 nitrocellulose Drugs 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- YEAUATLBSVJFOY-UHFFFAOYSA-N tetraantimony hexaoxide Chemical compound O1[Sb](O2)O[Sb]3O[Sb]1O[Sb]2O3 YEAUATLBSVJFOY-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/87—Arrangements for preventing or limiting effects of implosion of vessels or containers
Landscapes
- Glass Compositions (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
A method of locally strengthening a cathoderay tube, comprises coating a zone of the tube in which tensile stresses may occur with a thin layer of glaze having a co-efficient of expansion lower than that of the glass of the tube and heating the zone to such a temperature that the glaze is sealed to the glass of the tube. A suspension of powdered glaze in ethyl acetate, alcohol or water may be sprayed or smeared on to the zone requiring reinforcement. A binder such as nitro cellulose may be added to the suspension. The glaze is heated to between 550-1000 DEG C., the resistance to tensile stress increasing as the treatment temperature increases. In an example, a glass object having the composition 70.3% SiO2, 0.5% Li2O, 7.8% Na2O, 7.5% K2O, 11.1% BaO, 2.5% Al2O3, 0.3% Sb2O3 (co-efficient of expansion at 30-300 DEG C. approximately 95x10-7) is at 30-300 DEG C. approximately 95 x 10-7) is coated with a glaze consisting of 15.0% SiO2, 18.0% B2O3, 8.0% ZnO, 56.0% PbO, 3.0% Al2O3 (co-efficient of expansion at 30-300 DEG C. approximately 65 x 10-7).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL251758 | 1960-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB976508A true GB976508A (en) | 1964-11-25 |
Family
ID=19752357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1758461A Expired GB976508A (en) | 1960-05-18 | 1961-05-15 | Improvements relating to methods of locally strengthening cathode-ray tubes |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1188215B (en) |
| GB (1) | GB976508A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2785820A (en) * | 1952-06-28 | 1957-03-19 | Owens Illinois Glass Co | Controlling implosions in cathode ray and other tubes |
| DE1071906B (en) | 1956-03-12 | 1959-12-24 | Societc Anonyme des Manufactures des Glaces et Produits Chimiques de Saint-Gobain, Chaumy S. Cirey, Paris | Process for coating glass objects with glaze-like coatings that are to be burned in |
| BE568343A (en) * | 1957-06-05 |
-
1961
- 1961-05-15 GB GB1758461A patent/GB976508A/en not_active Expired
- 1961-05-15 DE DEN20046A patent/DE1188215B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1188215B (en) | 1965-03-04 |
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