GB1034094A - Self-lubricating article and means for its manufacture - Google Patents

Self-lubricating article and means for its manufacture

Info

Publication number
GB1034094A
GB1034094A GB11926/63A GB1192663A GB1034094A GB 1034094 A GB1034094 A GB 1034094A GB 11926/63 A GB11926/63 A GB 11926/63A GB 1192663 A GB1192663 A GB 1192663A GB 1034094 A GB1034094 A GB 1034094A
Authority
GB
United Kingdom
Prior art keywords
degraded
temperature
ptfe
hours
mixture
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
Application number
GB11926/63A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Polymer Corp
Original Assignee
Polymer Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Polymer Corp filed Critical Polymer Corp
Publication of GB1034094A publication Critical patent/GB1034094A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0094—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with organic materials as the main non-metallic constituent, e.g. resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors

Abstract

1,034,094. Bearings. POLYMER CORPORATION. March 26, 1963 [April 13, 1962], No. 11926/63. Heading F2A. [Also in Division H2] A self-lubricated article, such as a bearing or a brush for an electric motor, comprises a sintered metal and thermally degraded polytetrafluoroethylene contained in the interstices of the sintered metal. The thermally degraded PTFE is prepared by heating the resin to a temperature between 1000 and 1500‹ F. for a period up to one half-hour and allowing the resulting liquid to cool to room temperature. The degraded material is ground to a convenient particle size and reheated to a temperature between 600‹ and 800‹ F. to oxidize any free carbonaceous material and to volatilize any low boiling materials. As an alternative to cooling to room temperature, the degraded material may be cooled to a temperature of 600‹ to 800‹ F. which is maintained for an adequate time to obtain the same result. The degraded PTFE is milled until it will pass an 80-mesh screen and mixed with finely divided silver and cadmium oxide. After milling the mixture for about three hours and passing it through a 325- mesh screen, slugs of “ inch diameter and length are pressed from it at a pressure of about 25 tons per square inch before sintering for two hours at 720‹ F. The PTFE constitutes 9À6% of the volume of the mixture and the silver and cadmium oxide 79À5 and 10À9% respectively.
GB11926/63A 1962-04-13 1963-03-26 Self-lubricating article and means for its manufacture Expired GB1034094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18718362A 1962-04-13 1962-04-13

Publications (1)

Publication Number Publication Date
GB1034094A true GB1034094A (en) 1966-06-29

Family

ID=22687930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11926/63A Expired GB1034094A (en) 1962-04-13 1963-03-26 Self-lubricating article and means for its manufacture

Country Status (5)

Country Link
CH (1) CH418738A (en)
DE (1) DE1246255B (en)
FR (1) FR1355167A (en)
GB (1) GB1034094A (en)
SE (1) SE307016B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599399A (en) * 1977-05-13 1981-09-30 Johnson Matthey Co Ltd Production of metallic articles
DE2948485C2 (en) * 1979-12-01 1993-10-28 Scharwaechter Gmbh Co Kg Door stops for vehicle doors
JP2907999B2 (en) * 1990-11-16 1999-06-21 日立粉末冶金株式会社 High temperature sintered plain bearings
GB2250549B (en) * 1990-11-30 1995-01-11 Ntn Toyo Bearing Co Ltd Rolling bearing with solid lubricant
DE4412715C1 (en) * 1994-04-13 1995-08-17 Degussa Noble metal material free from allergenic heavy metal for making jewellery

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962561C (en) * 1949-01-11 1957-05-23 Glacier Co Ltd Plain bearing made of at least porous metal on the surface, which contains a friction-reducing substance

Also Published As

Publication number Publication date
DE1246255B (en) 1967-08-03
SE307016B (en) 1968-12-16
FR1355167A (en) 1964-03-13
CH418738A (en) 1966-08-15

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