GB1271681A - Hollow carbon or graphite arc electrons - Google Patents
Hollow carbon or graphite arc electronsInfo
- Publication number
- GB1271681A GB1271681A GB09143/69A GB1914369A GB1271681A GB 1271681 A GB1271681 A GB 1271681A GB 09143/69 A GB09143/69 A GB 09143/69A GB 1914369 A GB1914369 A GB 1914369A GB 1271681 A GB1271681 A GB 1271681A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bore
- sealing
- arc
- gas
- materials
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/06—Electrodes
- H05B7/08—Electrodes non-consumable
- H05B7/085—Electrodes non-consumable mainly consisting of carbon
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Discharge Heating (AREA)
- Carbon And Carbon Compounds (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Sealing Devices (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
1,271,681. Arc electrodes. C. CONRADTY. 15 April, 1969 [24 May, 1968], No. 19143/69. Heading H5H. [Also in Division C1] To prevent the escape of arc stabilizing, ionizing gas through the porous walls of a hollow carbon electrode, the bore is made gas impermeable. Various sealing procedures are described. The surface of the bore may be sealed by carbonizing materials in the absence of air, suitable impregnating materials being tar, pitch, synthetic resins or sugar solutions. The bore surface may be impregnated with waterglass and then heat treated so that the pores are filled with silica. Pyrolitic carbon may be deposited on the surface of the bore to render it gas-tight. Metallic coatings may be used to effect sealing, deposition being effected by electrolysis or by the decomposition of organic metallic compounds. Instead of coating the surface, a metal tube or gas impermeable carbon or graphite tube may be pressed into the surface of the bore. The sealing materials may also assist in stabilizing the arc, suitable ionizing additives being potassium fluoroborate potassium sulphate, tungsten carbide, or titanium carbide. Gunite can also be used as sealing process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681758394 DE1758394C3 (en) | 1968-05-24 | Hollow electrode made of carbon or graphite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1271681A true GB1271681A (en) | 1972-04-26 |
Family
ID=5695010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB09143/69A Expired GB1271681A (en) | 1968-05-24 | 1969-04-15 | Hollow carbon or graphite arc electrons |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3588307A (en) |
| AT (1) | AT290868B (en) |
| BE (1) | BE731748A (en) |
| CH (1) | CH535527A (en) |
| ES (1) | ES365395A1 (en) |
| FR (1) | FR2014138B1 (en) |
| GB (1) | GB1271681A (en) |
| LU (1) | LU58225A1 (en) |
| NL (1) | NL6905619A (en) |
| NO (1) | NO122441B (en) |
| SE (1) | SE350983B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4513425A (en) * | 1983-07-15 | 1985-04-23 | Great Lakes Carbon Corporation | Composite electrode for arc furnace |
| US4490824A (en) * | 1983-07-15 | 1984-12-25 | Great Lakes Carbon Corporation | Composite electrode for arc furnace |
-
1969
- 1969-03-18 LU LU58225D patent/LU58225A1/xx unknown
- 1969-03-19 AT AT268369A patent/AT290868B/en not_active IP Right Cessation
- 1969-03-28 ES ES365395A patent/ES365395A1/en not_active Expired
- 1969-03-31 SE SE04545/69A patent/SE350983B/xx unknown
- 1969-04-11 NO NO1488/69A patent/NO122441B/no unknown
- 1969-04-11 NL NL6905619A patent/NL6905619A/xx unknown
- 1969-04-14 FR FR6910813A patent/FR2014138B1/fr not_active Expired
- 1969-04-15 GB GB09143/69A patent/GB1271681A/en not_active Expired
- 1969-04-18 BE BE731748D patent/BE731748A/xx unknown
- 1969-05-19 US US833841A patent/US3588307A/en not_active Expired - Lifetime
- 1969-05-23 CH CH793969A patent/CH535527A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL6905619A (en) | 1969-11-26 |
| AT290868B (en) | 1971-06-25 |
| BE731748A (en) | 1969-10-01 |
| SE350983B (en) | 1972-11-13 |
| FR2014138B1 (en) | 1975-08-22 |
| US3588307A (en) | 1971-06-28 |
| FR2014138A1 (en) | 1970-04-17 |
| DE1758394A1 (en) | 1971-01-28 |
| ES365395A1 (en) | 1971-01-01 |
| LU58225A1 (en) | 1969-07-11 |
| DE1758394B2 (en) | 1976-01-08 |
| CH535527A (en) | 1973-03-31 |
| NO122441B (en) | 1971-06-28 |
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