GB550379A - Improvements in or relating to the treatment of carbon bodies to improve the hardness, density and electrical conductivity thereof - Google Patents
Improvements in or relating to the treatment of carbon bodies to improve the hardness, density and electrical conductivity thereofInfo
- Publication number
- GB550379A GB550379A GB15015/41A GB1501541A GB550379A GB 550379 A GB550379 A GB 550379A GB 15015/41 A GB15015/41 A GB 15015/41A GB 1501541 A GB1501541 A GB 1501541A GB 550379 A GB550379 A GB 550379A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbon
- graphite
- treatment
- hardness
- density
- 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
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/12—Manufacture of brushes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Products (AREA)
Abstract
550,379. Carbon brushes, resistances &c. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 21, 1941, No. 15015. Convention date, Nov. 23, 1940. [Class 90] [Also in Group XI] Carbon .brushes, resistance plates, crucibles and other carbon bodies consisting of graphite or prepared by heat treatment of non-graphitic carbon to produce a substance consisting wholly or mainly of graphite have the hardness, density and electrical conductivity increased by heattreating at a non-graphitizing temperature in a hydro-carbon gas atmosphere to deposit non- graphitic carbon within the pores of the body. In an example, a mixture made from lampblack, coke, charcoal, graphite &c. is bonded with pitch, tar, resins &c., made into slugs and carbonized by heat, pulverised, bonded again and again pulverised, made into a bar or plate under pressures varying from 1,000 to 20,000 pounds per square inch and carbonized at temperatures up to 1,204‹C. Graphitization is then effected by heating to temperatures between 1648 and 3037‹C. Thereafter the treatment in hydrocarbon gas is effected. Gases mentioned are methane, propane, butane, Pennsylvania natural gas and volatilized oils, petroleum, waxes &c. The Figure shows an electric heating arrangement for carbon plates 10.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US550379XA | 1940-11-23 | 1940-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB550379A true GB550379A (en) | 1943-01-05 |
Family
ID=21995157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15015/41A Expired GB550379A (en) | 1940-11-23 | 1941-11-21 | Improvements in or relating to the treatment of carbon bodies to improve the hardness, density and electrical conductivity thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB550379A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2600238A (en) * | 1949-07-22 | 1952-06-10 | American Briquet Company | Method of making steel |
| US2719779A (en) * | 1950-01-11 | 1955-10-04 | Cabot Godfrey L Inc | Process of making hard carbon black pellets |
| US2764539A (en) * | 1952-08-21 | 1956-09-25 | Frank H Morse | Carbon electrodes |
| US2837412A (en) * | 1956-12-18 | 1958-06-03 | George A Bennett | Preparation of impervious graphite by liquid phase impregnation |
| US2946668A (en) * | 1954-05-28 | 1960-07-26 | Metal Chlorides Corp | Continuous high-temperature reaction apparatus |
| US3084394A (en) * | 1959-11-20 | 1963-04-09 | Bickerdike Robert Lewis | Method of making carbon articles |
| US3107973A (en) * | 1959-11-20 | 1963-10-22 | Bickerdike Robert Lewis | Process for forming impermeable carbon articles |
| US3138434A (en) * | 1961-04-26 | 1964-06-23 | Gen Electric | Deposition method of forming a pyrolytic graphite article |
| CN109524871A (en) * | 2018-11-19 | 2019-03-26 | 大同新成新材料股份有限公司 | A kind of forming graphite carbon brush machine feed device and method |
-
1941
- 1941-11-21 GB GB15015/41A patent/GB550379A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2600238A (en) * | 1949-07-22 | 1952-06-10 | American Briquet Company | Method of making steel |
| US2719779A (en) * | 1950-01-11 | 1955-10-04 | Cabot Godfrey L Inc | Process of making hard carbon black pellets |
| US2764539A (en) * | 1952-08-21 | 1956-09-25 | Frank H Morse | Carbon electrodes |
| US2946668A (en) * | 1954-05-28 | 1960-07-26 | Metal Chlorides Corp | Continuous high-temperature reaction apparatus |
| US2837412A (en) * | 1956-12-18 | 1958-06-03 | George A Bennett | Preparation of impervious graphite by liquid phase impregnation |
| US3084394A (en) * | 1959-11-20 | 1963-04-09 | Bickerdike Robert Lewis | Method of making carbon articles |
| US3107973A (en) * | 1959-11-20 | 1963-10-22 | Bickerdike Robert Lewis | Process for forming impermeable carbon articles |
| DE1202702B (en) * | 1959-11-20 | 1965-10-07 | Secr Aviation | Process for the manufacture of tight objects from carbon |
| US3138434A (en) * | 1961-04-26 | 1964-06-23 | Gen Electric | Deposition method of forming a pyrolytic graphite article |
| CN109524871A (en) * | 2018-11-19 | 2019-03-26 | 大同新成新材料股份有限公司 | A kind of forming graphite carbon brush machine feed device and method |
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