GB721211A - Improvements in or relating to the impregnation of porous solids with other materials - Google Patents
Improvements in or relating to the impregnation of porous solids with other materialsInfo
- Publication number
- GB721211A GB721211A GB1568951A GB1568951A GB721211A GB 721211 A GB721211 A GB 721211A GB 1568951 A GB1568951 A GB 1568951A GB 1568951 A GB1568951 A GB 1568951A GB 721211 A GB721211 A GB 721211A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impregnation
- metallic component
- relating
- materials
- suspensoid
- 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
- 239000000463 material Substances 0.000 title abstract 3
- 239000007787 solid Substances 0.000 title abstract 3
- 238000005470 impregnation Methods 0.000 title abstract 2
- 239000011148 porous material Substances 0.000 abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000701 coagulant Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 239000000080 wetting agent Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/20—Sliding surface consisting mainly of plastics
- F16C33/201—Composition of the plastic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
A bearing material comprises a solid non-metallic component of rigid porous material impregnated with polytetrafluoroethylene. The porous material may be porous carbon. The impregnation may be effected by driving a colloidal suspension of plastic material into the pores of the said non-metallic component and subsequently removing the continuous phase of the suspensoid, e.g. by heating. A coagulating agent may be added to the suspensoid after it has been caused to enter the pores of the solid non-metallic component to facilitate the removal of the continuous phase, or alternatively a wetting agent may be employed. The invention is applied to bearings and electrical brushes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1568951A GB721211A (en) | 1951-07-02 | 1951-07-02 | Improvements in or relating to the impregnation of porous solids with other materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1568951A GB721211A (en) | 1951-07-02 | 1951-07-02 | Improvements in or relating to the impregnation of porous solids with other materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB721211A true GB721211A (en) | 1955-01-05 |
Family
ID=10063670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1568951A Expired GB721211A (en) | 1951-07-02 | 1951-07-02 | Improvements in or relating to the impregnation of porous solids with other materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB721211A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2807282A (en) * | 1954-02-17 | 1957-09-24 | Union Carbide Corp | Reinforced carbonaceous pipe and method of making same |
| US2819989A (en) * | 1956-06-26 | 1958-01-14 | Stackpole Carbon Co | Dynamoelectric brush |
| US3049448A (en) * | 1958-03-14 | 1962-08-14 | Lorraine Carbone | Method for improving the frictional properties of carbon brushes by low pressure polyethylene impregnation |
| US3108018A (en) * | 1960-05-27 | 1963-10-22 | Du Pont | Resin coated graphitized fabric |
| US3298753A (en) * | 1963-05-30 | 1967-01-17 | Carbone Corp | Carbon and carbon-graphite bearings with anti-friction surface |
-
1951
- 1951-07-02 GB GB1568951A patent/GB721211A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2807282A (en) * | 1954-02-17 | 1957-09-24 | Union Carbide Corp | Reinforced carbonaceous pipe and method of making same |
| US2819989A (en) * | 1956-06-26 | 1958-01-14 | Stackpole Carbon Co | Dynamoelectric brush |
| US3049448A (en) * | 1958-03-14 | 1962-08-14 | Lorraine Carbone | Method for improving the frictional properties of carbon brushes by low pressure polyethylene impregnation |
| US3108018A (en) * | 1960-05-27 | 1963-10-22 | Du Pont | Resin coated graphitized fabric |
| US3298753A (en) * | 1963-05-30 | 1967-01-17 | Carbone Corp | Carbon and carbon-graphite bearings with anti-friction surface |
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