EP0401335A1 - Materiaux auto-lubrifiants - Google Patents

Materiaux auto-lubrifiants

Info

Publication number
EP0401335A1
EP0401335A1 EP19900900281 EP90900281A EP0401335A1 EP 0401335 A1 EP0401335 A1 EP 0401335A1 EP 19900900281 EP19900900281 EP 19900900281 EP 90900281 A EP90900281 A EP 90900281A EP 0401335 A1 EP0401335 A1 EP 0401335A1
Authority
EP
European Patent Office
Prior art keywords
carrier
lubricant
base material
microporous
microporous carrier
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.)
Withdrawn
Application number
EP19900900281
Other languages
German (de)
English (en)
Inventor
Robert William Wilson
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GB888829095A external-priority patent/GB8829095D0/en
Priority claimed from GB898911557A external-priority patent/GB8911557D0/en
Application filed by Individual filed Critical Individual
Publication of EP0401335A1 publication Critical patent/EP0401335A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F16C33/24—Brasses; Bushes; Linings with different areas of the sliding surface consisting of different materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/40—Impregnation
    • C08J9/42—Impregnation with macromolecular compounds
    • 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
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • 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
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof

Definitions

  • This invention relates to self-lubricating materials.
  • a method of producing a self-lubricating material comprising absorbing a lubricant (such as oil or wax) into a microporous carrier, and incorporating the lubricant-bearing carrier into a base material.
  • a lubricant such as oil or wax
  • the resultant mixture is used to mould, cast or extrude a desired component directly in its finished form.
  • a method of producing a self-lubricating article such as a bearing or gear, comprising absorbing a lubricant (such as oil or wax) into a microporous carrier, mixing the carrier with a base material such as metal or plastics, and moulding, casting or extruding the bearing or gear in its finished form directly from the resultant mixture.
  • a lubricant such as oil or wax
  • the microporous carrier has a structure comprising a plurality of substantially spherical microcells distributed substantially uniformly through the structure, adjacent cells being interconnected by pores smaller in diameter than the microcells.
  • the microcells conveniently have an average diameter of between 0.5 and 100 microns.
  • the microporous carrier is a substance as defined in the claims of UK Patent No. 1576228.
  • the microporous carrier can be made of plastics material, and is preferably a polymer or copolymer of an ethylenically unsaturated monomer, a condensation polymer, a polyphenylene oxide or a blend thereof. More particularly, the plastics material can be polypropylene, polyethylene or a polyamide (e.g. nylon). Alternatively, the microporous carrier can be made of a metal or metal alloy, such as aluminium or aluminium alloy.
  • the microporous carrier is made of the same material as the base material .
  • the microporous carrier has a density within the approximate range of 0.9 to 0.945 gm/cc 3 , a void volume of substantially 75%, a cell size within the approximate range of 0.5 to 6.0 microns, and/or a pore size within the approximate range of 0.05 to 5.0 microns.
  • the carrier incorporating the lubricant can be mixed with the base material in solid form, with the resultant mixture then being subjected to a melting operation.
  • the carrier incorporating the lubricant can be incorporated into the base material when the latter is in a molten state.
  • a lubricant such as oil or wax is absorbed into a microporous carrier. Particles of the lubricant-bearing carrier are then mixed with granules of a base material (such as plastics), for example using one part of carrier to ten parts of base material, and the resultant mixture is employed as a raw material for e.g. a moulding, casting or extrusion process.
  • a base material such as plastics
  • the lubricant is dispersed in minute pockets throughout the finished component. Accordingly, as the surface of the component wears, fresh pockets are exposed thereby maintaining the lubricating function in an effective manner.
  • a suitable form of carrier for use in the above-described process is that described and claimed in UK patent no. 1576228 and sold by Azko Chemicals under the trade name ACCUREL. This substance is capable of absorbing approximately two-thirds of its own weight of the lubricant.
  • microporous carriers can be used according to the nature of the base material, and carriers having the following properties are preferred, respectively, where the base material is a polyamide plastics (e.g. nylon), polyethylene or polypropylene:
  • the base material is a polyamide plastics (e.g. nylon), polyethylene or polypropylene:

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Lubricants (AREA)

Abstract

Matériau auto-lubrifiant, dans lequel un porteur microporeux regorgeant de la substance lubrifiante (telle que de l'huile ou de la cire) est incorporé dans un matériau de base. Le mélange ainsi obtenu peut servir à mouler, couler ou extruder directement dans sa forme finale un objet ou composant voulu, sans devoir recourir par exemple à la finition par machine pour lui donner une dimension donnée. Le porteur peut être fait de matières plastiques, de métal ou d'un alliage métallique, et est, de préférence, fait du même matériau que le matériau de base.
EP19900900281 1988-12-14 1989-12-11 Materiaux auto-lubrifiants Withdrawn EP0401335A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB888829095A GB8829095D0 (en) 1988-12-14 1988-12-14 Application for self lubricated bearings
GB8829095 1988-12-14
GB898911557A GB8911557D0 (en) 1989-05-19 1989-05-19 Self-lubricating materials
GB8911557 1989-05-19

Publications (1)

Publication Number Publication Date
EP0401335A1 true EP0401335A1 (fr) 1990-12-12

Family

ID=26294724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900900281 Withdrawn EP0401335A1 (fr) 1988-12-14 1989-12-11 Materiaux auto-lubrifiants

Country Status (3)

Country Link
EP (1) EP0401335A1 (fr)
JP (1) JPH03502470A (fr)
WO (1) WO1990006967A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569498A1 (fr) * 1991-01-28 1993-11-18 W.L. Gore & Associates, Inc. Element de garnissage interieur pour manchons

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2274911A1 (fr) * 1974-06-13 1976-01-09 Metafram Procede de verification des qualites d'un produit et organe d'appui autolubrifiant constitue de ce produit
DE3030870A1 (de) * 1979-08-29 1981-03-26 Bando Chemical Industries Ltd., Kobe, Hyogo Selbstschmierendes lager

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9006967A1 *

Also Published As

Publication number Publication date
WO1990006967A1 (fr) 1990-06-28
JPH03502470A (ja) 1991-06-06

Similar Documents

Publication Publication Date Title
US2998397A (en) Bearing element comprising thermoplastic resin and sintered teflon particles
CA2462977C (fr) Materiau composite contenant du tungstene et du bronze
US4592782A (en) Composition of matter incorporating polyether ether ketone
EP1199124B1 (fr) Lubrifiant pour la lubrification de moule et procede de production de produits a haute densite formes a partir de poudre a base de fer
KR20030036642A (ko) 응집에 의한 복합체 제조 방법 및 그 제조된 복합체
KR910003442B1 (ko) 자체 윤활성 소결 베어링 및 그 제조방법
US5435925A (en) Polyethylene lubricant-dispensing compositions
EP0401335A1 (fr) Materiaux auto-lubrifiants
US4076347A (en) Antifriction nylon member
EP0430324B2 (fr) Paliers
US3458596A (en) Synthetic material for bearings and other machine elements,containing polyamides and polyolefins
RU1828521C (ru) Способ изготовлени радиальных подшипников
US3606657A (en) Method of making bearings and other antifriction members from a synthetic resin material containing lubricant
JPH01104622A (ja) 摺動特性を有する樹脂成形体の製造法
JPS5881946A (ja) Ａｌ系焼結軸受合金およびその製造方法
US6126710A (en) Method of producing a sintered slide bearing and slide bearing
JPH08176698A (ja) 自己潤滑性複合粉末合金
JPH038668B2 (fr)
JPS59207943A (ja) 耐摩耗性セラミツクス充填樹脂組成物
JPS6233274B2 (fr)
CN108690697B (zh) 一种固体润滑剂及其制备方法
US3110092A (en) Silicide composition and method of manufacture
CN1101419C (zh) 充油聚甲醛材料及其制造方法和应用
RU2155668C1 (ru) Масса для изготовления абразивного инструмента
RU2115669C1 (ru) Антифрикционный материал

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19900817

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19910919