GB1456462A - Pyrolytic graphite articles - Google Patents
Pyrolytic graphite articlesInfo
- Publication number
- GB1456462A GB1456462A GB2899874A GB2899874A GB1456462A GB 1456462 A GB1456462 A GB 1456462A GB 2899874 A GB2899874 A GB 2899874A GB 2899874 A GB2899874 A GB 2899874A GB 1456462 A GB1456462 A GB 1456462A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyrolytic graphite
- abrasion
- blank
- layer
- perforate
- 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
- 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
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/522—Graphite
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
1456462 Blasting ENGLISH ELECTRIC VALVE CO Ltd 11 April 1975 [29 June 1974] 28998/74 Heading B3D [Also in Division C1] A perforate article is prepared from a laminar blank of pyrolytic graphite by a process which includes the steps of machining or abrading selected locations of the blank to produce perforations therein, and thereafter depositing a layer of pyrolytic graphite thereon. The abrasion process is preferably one employing shot abrasion techniques, and is used, for example, to prepare the perforate mesh electrodes (see Fig. 1). The thickness of the layer of secondarily deposited graphite is preferably less than that of the laminar blank, and may be comparable to the size of the particles used in the abrasion process.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2899874A GB1456462A (en) | 1974-06-29 | 1974-06-29 | Pyrolytic graphite articles |
DE19742439698 DE2439698B2 (en) | 1974-06-29 | 1974-08-19 | PROCESS FOR MANUFACTURING A HIGH VOLTAGE PERFORATED COMPONENT FROM PYROLYTIC GRAPHITE |
FR7520035A FR2276263A1 (en) | 1974-06-29 | 1975-06-26 | IMPROVEMENTS RELATING TO PYROLYTIC GRAPHITE OBJECTS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2899874A GB1456462A (en) | 1974-06-29 | 1974-06-29 | Pyrolytic graphite articles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1456462A true GB1456462A (en) | 1976-11-24 |
Family
ID=10284626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2899874A Expired GB1456462A (en) | 1974-06-29 | 1974-06-29 | Pyrolytic graphite articles |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2439698B2 (en) |
FR (1) | FR2276263A1 (en) |
GB (1) | GB1456462A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1534551A (en) * | 1976-10-21 | 1978-12-06 | English Electric Valve Co Ltd | Electrodes |
-
1974
- 1974-06-29 GB GB2899874A patent/GB1456462A/en not_active Expired
- 1974-08-19 DE DE19742439698 patent/DE2439698B2/en not_active Ceased
-
1975
- 1975-06-26 FR FR7520035A patent/FR2276263A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2439698B2 (en) | 1976-09-02 |
DE2439698A1 (en) | 1976-01-08 |
FR2276263A1 (en) | 1976-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3376533D1 (en) | Abrasive compacts and method of making them | |
CA951911A (en) | Process for forming high density microcrystalline sintered abrasive and products resulting therefrom | |
JPS5262108A (en) | Controlled forging process for increasing surface density of sintered porous metallic product | |
IL53657A (en) | Process of stress relief of metal-ceramic seals and articles so produced | |
ES444989A1 (en) | Cutting tool and method for making same | |
CA964512A (en) | Coated carrier particles, method of making same, and improved electrophotographic process | |
GB1456462A (en) | Pyrolytic graphite articles | |
GB1534448A (en) | Abrasive product | |
JPS5332806A (en) | Production of damping material | |
NL186917C (en) | METHOD FOR ELECTROLYTIC COATING OF A LOW METAL WITH COMPOSITIVE PARTICLES. | |
CA1024929A (en) | Method for a surface treatment of an iron, ferrous alloy or cemented carbide article | |
PT67420B (en) | Method for extraction of gallium from aluminate-alkaline solutions in the production of alumina from aluminium-containing ores | |
GB817607A (en) | Filter bodies for the separation of minute suspended particles and a method of producing the same | |
JPS5367407A (en) | Production of magnetic disc | |
JPS5290902A (en) | Production of reproducing stylus | |
ES405586A1 (en) | Procedure for coating metal articles. (Machine-translation by Google Translate, not legally binding) | |
GB2065716A (en) | Process for use when producing a part by powder metallurgy methods | |
FR2156387A1 (en) | Jewellery or decorative article prodn - by electrodeposition of previous metals and removal of substrate | |
JPS5360809A (en) | Coins made from powdery metallic titanium and process for production thereof | |
CA1012923A (en) | Method for a surface treatment of an iron, ferrous alloy or cemented carbide article | |
CA977508A (en) | Method of making cobalt alloy steel composite article | |
JPS57205070A (en) | Manufacture of grinder | |
CA827612A (en) | Composite article of carbide and graphite, coating and method of forming | |
JPS52145878A (en) | Fine particle containing gas treating method | |
DE3465438D1 (en) | Matrix and method of manufacturing articles of a synthetic resin by using the matrix |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940411 |