US3177564A - Fabricating self-lubricating articles - Google Patents

Fabricating self-lubricating articles Download PDF

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US3177564A
US3177564A US267500A US26750063A US3177564A US 3177564 A US3177564 A US 3177564A US 267500 A US267500 A US 267500A US 26750063 A US26750063 A US 26750063A US 3177564 A US3177564 A US 3177564A
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powder
strip
metal
layer
backing strip
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US267500A
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Reynolds Jeffrey Alan
Hall David
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    • 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
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
    • 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
    • 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
    • C22C32/0084—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 carbon or graphite as the main non-metallic constituent
    • 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
    • F16C33/121—Use of special materials
    • 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
    • F16C33/14—Special methods of manufacture; Running-in
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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
    • F16C2220/00—Shaping
    • F16C2220/20—Shaping by sintering pulverised material, e.g. powder metallurgy
    • 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
    • F16C2220/00—Shaping
    • F16C2220/60—Shaping by removing material, e.g. machining
    • 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
    • F16C2220/00—Shaping
    • F16C2220/80—Shaping by separating parts, e.g. by severing, cracking
    • F16C2220/82—Shaping by separating parts, e.g. by severing, cracking by cutting
    • 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
    • F16C2223/00—Surface treatments; Hardening; Coating
    • F16C2223/30—Coating surfaces
    • F16C2223/32—Coating surfaces by attaching pre-existing layers, e.g. resin sheets or foils by adhesion to a substrate; Laminating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S72/00—Metal deforming
    • Y10S72/70—Deforming specified alloys or uncommon metal or bimetallic work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12903—Cu-base component
    • Y10T428/12917—Next to Fe-base component
    • Y10T428/12924—Fe-base has 0.01-1.7% carbon [i.e., steel]

Definitions

  • the present invention relates toa method of and apparatus for fabricating self-lubricating articles or components which comprise a layer-lattice solid lubricant incorporated in a powder metal matrix, and to articles or components made by the method.
  • Such articles are at present fabricated as a graphitecontaining metal powder moulding comprising a consolidated mass of a metal powder or powders comprising mixed grain sizes up to about 60 microns and colloidal graphite, the mixture having been sintered and compressed whereby the metal structure is stabilised with the colloidal graphite trapped under pressure in the interstices of the metal matrix, the moulding being machined to the shape and dimensions of the required article or component.
  • the production of such mouldings is described in United States specification No. 2,974,039 and British specification Nos. 892,846 and 892,847.
  • the principal metal powder comprises iron, copper, aluminum and/ or nickel, separately or in combination, to which may be added secondary metal powders such as zinc, tin, lead and cadmium, alone or in combination.
  • the present invention has for an object to reduce the cost of such articles and components by using the special self-lubricating material to provide only the hearing or wearing surface of the article or component, the self-lubricating material being bonded as a layer on a support comprising a metal backing sheet or strip which provides the required mechanical support for the self-lubricating layer.
  • the invention consists in a method for the manufacture of self-lubricating articles or components comprising intimately mixing one or more metal powders, comprising mixed grain sizes of up to about 60 microns, with a powdered solid lubricant comprising colloidal graphite and/ or molybdenum disulphide and/ or boron nitride (the lubricant occupying 3% to 50% of the total volume), loosely spreading the powder mixture in a layer on the surface of a metal backing strip, heating the backing strip, with the powder layer thereon, in an atmosphere which avoids undesirable oxidation or r action with the powder, to a sintering temperature below the melting point of the principal metal powder constiutent, rolling the strip with the powder layer thereon between rolls to compact the layer, and further heating the rolled composite strip, whereby to produce an annealed dense and coherent layer, comprising the metal powder matrix with the solid lubricant incorporated in the interstices of the matrix, which is bonded to the surface of the metal backing strip
  • a strong metal backing strip for example, of mild steel, is cleaned and, if necessary, copper plated prior to loosely spreading the powder mixture on the surface of the metal backing strip to the desired thickness.
  • the powder mixture may comprise 79 /2 copper,
  • the backing strip with the powder thereon, is heated in an atmosphere which avoids undesirable oxidation or reaction with the powder, to a sintering temperature below the equilibrium solidus of the alloy formed from the metal powder mixture concerned, for example between 600 and 750 C., and, after withdrawal from the furnace and being cooled, is then rolled to compact the powder layer.
  • the composite strip is'then submitted to a further heat treatment to develop the bond between the metal powder grains, and between the metal powder grains and the backing strip, and to relieve the stresses in the metal powder matrix.
  • the composite strip can then be submitted to conventional fabricating operations, such as blanking, forming and machining, in order to produce bearing shells, thrust washers or other components.
  • the invention consists in an article or component having a self-lubricating surface and comprising a sheet metal backing on to at least one surface of which is roll-bonded a substantially dense and coherent layer, comprising a sintered metal matrix in the interstices of which is incorporated a layer-lattice solid lubricant, the lubricant occupying 3% to of the total volume of the layer.
  • the invention further consists in an apparatus for carrying out the process.
  • FIGURE 1 is a diagrammatic side view of an apparatus for carrying out the process of this invention.
  • FIGURE 2 is a section along the line AA in FIG- URE 1.
  • FIGURE 3 is a plan view of the spreading arrangement, with the hopper removed.
  • FIGURE 4 is a perspective view of a shell bearing according to this invention.
  • a mild steel backing strip 1 is fed from the coil 1a by driven straightening rollers 2, and, after being fed past the spreading device generally indicated by 3 where the powder mixture 7 is loosely spread on the surface of the strip, passes through a sintering furnace 4. After leaving the sintering furnace, the strip with the powder layer 7 thereon is rolled between rollers 5 to consolidate the powder into a compact layer on the surface of the metal backing strip. After leaving the rollers 5 the composite strip passes through an annealing furnace 6. The composite strip is drawn from the annealing furnace by pull-out rollers 8 and may then be cut into desired lengths, wound on to a roll or directly fed to machines for fabricating the components to be made.
  • the powder mixture 7 is fed to the upper surface of the strip 1 from a hopper 9.
  • the strip 1 moves in the spreading device on an endless belt 10 which is wider than the srip 1 and is supported by the rigid table 11.
  • the strip is located laterally with respect to the hopper by means of inverted L-shaped guides 12 supported above the belt 10.
  • the hopper 9 which is carried by the guides 12, has an outlet 9a which is of a depth to provide a layer of powder 7 on the strip exceeding the thickness of the required loosely spread layer.
  • the side walls of the guides 12 keep the power 7 on the strip, leaving side zones thereof uncovered by the powder.
  • the powder layer is spread to cover these sides zones and to produce the powder layer of the required thickness by a generally V-shaped spreading blade or plough 3 13, excess powder being deflected over the sides of the metal backing strip 1 and on to the surface of the belt 10.
  • the powder which falls on to the belt is discharged into a collecting device 14 for feeding back to the is weak, and the compacted layer can be easily scratched and scraped oif the backing strip.
  • the rolled strip is then passed through an annealing furnace 6 which may be similar to the sintering furnace 4, in which the powder is again heated to about hopper 9.
  • the furnace 4- having refractory walls 15, may be the same temperature as in the sintering furnace 4. heated in any suitable manner by heating means generally This annealing treatment develops the bond between the indicated at 16.
  • the nuflie containing an atmosphere which avoids unmetal grains have been firmly welded to each other and desirable oxidation or reaction with the powder, for ex- [0 th backing strip, producing a substantially dense ample an atmosphere of r ked o i whi h may and coherent layer, comprising the metal powder matrix be fed into th fii i th inlet 18, Excess gas with the solid lubricant incorporated in the interstices is burnt at the ends of the muffie.
  • the outlet end of the of the matrix, Which is bonded to the Surface f h mufiie is provided with a water-cooled chill plate 19 maifli backing P-
  • the layer is resistant to Scratch beyond th nd f the furnace h b Th i l t nd ing and the composite strip will withstand fabricating opof the muffle may also have a water-cooling passage 21) Bunions, to Produce, for p Shell hearings Such as therearound. shown in FIGURE 4.
  • the furnace should be arranged so that the tempera- If the si tered powder layer on the backing strip is ture of the powder will not be raised too quickly to the foiled instead of Cold, the Separate annealing sintering temperature.
  • the time required to reach the nace may be dispensed with provided the rolling is sintering temperature should be at least 1 minute, prefereiiected ill a reducing P
  • the T0115 y ably not less than 1 /2 minutes, in order to avoid crackp he located in the Sihtfifihg iumflce- It is ing of the powder layer.
  • the stresses in the compacted layer chamber can conveniently be about 9 feet long when Should be relievedthe metal strip is fed at a speed of 3 feet per minute.
  • the Powder mixture The heating means 16 may be divided into sections prises 791/2% PP 121/270 tin and 8% coiioidai p which may be separately controlled to regulate the rate he, the Percentages hfiihg given y Weight The metal of rise of temperature.
  • any powder which may f ll powders have mixed grain sizes of from 5 to 60 microns off the strip in the muffle is collected in a box 21 in the and are Preferably of irregular P
  • the metal P floor of the muffle, the bottom of which can be opened and graphite are intimately mixed before being fed to periodically to empty the collected powder.
  • the box the pp The mild Steel Strip 1 y be about 21 should be located at a position where the temperathick and has its Surface, 011 Which the Powder ture is not sufficiently high to melt the powder.
  • the reductlon the thlckmss of the Powder layer may Various compositions which may be used are shown in be about 80%. the following table. The figures in brackets refer to At this Stage the bond hfitweel'l the metal Powder weight percentages, except where otherwise stated, and are grains, and between the grains and the backing strip, maxi a,
  • the backing strip should be made or plated with a metal which bonds with the metal grains of the powder mixture.
  • the backing strip is preferably of aluminium.
  • the colloidal lubricant grains (of about 1 micron) are first agglomerated by cold pressing, the agglomerate being comminuted to produce granules of about 200 to 500 microns which are then mixed with the metal powder or powders.
  • the backing strip can be provided with a compacted layer on both surfaces by submitting a composite strip having a compacted layer on one surface to a second treatment to provide a compacted layer on the other surface of the backing strip.
  • the method for the manufacture of self-lubricating articles comprising intimately mixing at least one metal powder, comprising mixed grain sizes of up to about 60 microns, with a powdered solid lubricant selected from the group consisting of colloidal graphite colloidal, molybdenum disulphide and colloidal boron nitride, the lubricant occuping 3% to 50% of the total volume of the mixture, loosely spreading the powder mixture in a layer on the surface of a metal backing strip, heating the backing strip, with the powder layer thereon, in an atmosphere which avoids undesirable oxidation and reaction with the powder, to a sintering temperature below the melting point of the principal metal powder constituent, rolling and further heating the strip with the powder layer thereon until an annealed dense and coherent layer is produced, comprising a metal powder matrix with discrete particles of the solid lubricant incorporated in the interstices of the matrix, which is bonded to the surface of the metal backing strip.
  • a powdered solid lubricant selected from the group
  • Method for the manufacture of self-lubricating articles which consists in intimately mixing at least one metal powder comprising mixed grain sizes of up to about 60 microns, with a powdered solid lubricant selected from the group consisting of colloidal graphite, colloidal molybdenum disulphide and colloidal boron nitride, the lubricant occupying 3% to 50% of the total volume of the mixture, loosely spreading the powder mixture in a layer on the surface of a metal backing strip, heating said backing strip with the powder layer thereon in a reducing atmosphere to a sintering temperature below the melting point of the principal metal powder constituent and at a rate such that the time required to reach the sintering temperature is at least one minute, cooling the strip with the sintered powder layer thereon, rolling the strip with the sintered powder layer thereon, to compact the layer and eliminate substantially all voids, submitting the rolled composite strip to further heat treatment to develop the bond between the metal powder grains and between the metal powder grains and the backing strip, and to relieve the stresses in
  • An article having a self-lubricating surface and consisting of a sheet metal backing on to at least one sur face of which is bonded a substantially dense and coherent layer consisting of a sintered powder metal matrix of non-interconimunicating cells containing discrete particles of a layer-lattice solid lubricant, the lubricant occupying 3% to 50% of the total volume of the layer.
  • Apparatus for the manufacture of self-lubricating articles according to claim 6, comprising a powder spreading device including an endless conveyor belt, of which the upper run is adapted to support the metal backing strip, two L-shaped guides extending above and longitudinally of the conveyor belt to define a guideway for the metal backing strip, a powder hopper above said guides and arranged to feed powder between said guides to a predetermined thickness, and a plough arranged downstream of said hopper and adapted to spread the powder on the metal strip to a thickness less than said predetermined thickness and to deflect the excess powder on to said conveyor belt; a sintering furnace including a tubular mutfie, heating means comprising separate sections for regulating the heat along said mufile, a chill plate at the end of said mufile for chilling the metal strip and the powder layer thereon; compacting rolls for compacting the powder layer on said strip; an annealing furnace including a tubular muffle; and mean for feeding the metal backing strip successively through said spreading device, said sintering furnace, said compacting rolls, and
  • a powder spreading device comprising an endless conveyor belt, of which the upper run supports the metal backing strip, two L-shaped guides extending above and longitudinally of the conveyor belt to define a guideway for the metal backing strip, a powder hopper above said guides and arranged to feed powder between said guides to a predetermined thickness, and a generally V-shaped plough arranged downstream of said hopper and adapted to spread the powder on the metal strip to a thickness less than said predetermined thickness and to deflect the excess powder on to said conveyor belt.
  • Method for the manufacture of self-lubricating articles which consists in intimately mixing about to by weight of powdered copper and about 10% to 15% by weight of powdered tin, said metal powders comprising mixed grain sizes of up to about 60 microns, with about 8% to 12% by weight of colloidal graphite, loosely spreading the powder mixture in a layer on the copperplated surface of a mild steel backing strip, heating said backing strip with the powder layer thereon in a reducing atmosphere to a temperature of about 725 C. in a time of from 1 to 3 minutes cooling the strip with the powder layer thereon, rolling the strip with the powder layer thereon between rollers to reduce the thickness of the layer to about 20% of its original thickness, heating the rolled composite strip to about 725 C.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Laminated Bodies (AREA)
  • Sliding-Contact Bearings (AREA)
US267500A 1962-03-28 1963-03-25 Fabricating self-lubricating articles Expired - Lifetime US3177564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11869/62A GB1035216A (en) 1962-03-28 1962-03-28 Method of and apparatus for fabricating self-lubricating articles or components, and articles or components made by the method

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DE (1) DE1293967B (de)
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387475A (en) * 1965-01-26 1968-06-11 Alusuisse Process for the manufacture of sheet metal articles coated with a thermoplastic resin
US3451809A (en) * 1968-03-08 1969-06-24 Int Nickel Co Method of sintering maraging steel with boron additions
US3869259A (en) * 1973-05-02 1975-03-04 Gen Motors Corp Composite sliding member
US3918923A (en) * 1972-08-16 1975-11-11 Riken Piston Ring Ind Co Ltd Wear resistant sintered alloy
US4084669A (en) * 1975-08-25 1978-04-18 Hitachi, Ltd. Composite collector
US5075130A (en) * 1990-11-19 1991-12-24 The United States Of America As Represented By The Secretary Of The Army Surface modification of boron carbide to form pockets of solid lubricant
FR2806765A1 (fr) * 2000-03-24 2001-09-28 Senju Metal Industry Co Portee lisse sans plomb et procede pour sa fabrication
EP1441873A1 (de) * 2001-10-17 2004-08-04 Federal-Mogul Corporation Mehrfachschichtpulvermetalllager
US20060272796A1 (en) * 2001-04-04 2006-12-07 Asmussen Erick R Flexible graphite flooring heat spreader
US20100190667A1 (en) * 2007-07-20 2010-07-29 Holger Schmitt Lead-free sintered lubricating material and sinter powder for manufacture of the same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2087436B (en) * 1980-11-19 1985-06-19 Brico Eng Sintered ferrous alloys
JPS59177341A (ja) * 1983-03-25 1984-10-08 Daido Metal Kogyo Kk 複層の黒鉛含有燐青銅軸受材料の製造方法
DE3413593C1 (de) * 1984-04-11 1985-11-07 Bleistahl GmbH, 5802 Wetter Verfahren zur Herstellung von Ventilsitzringen
US6663344B2 (en) * 2001-03-28 2003-12-16 Mitsubishi Materials Corporation Copper-based sintered alloy bearing and motor fuel pump
JP2003194061A (ja) * 2001-12-27 2003-07-09 Daido Metal Co Ltd 銅系焼結摺動材料およびその製造方法
DE10235813B4 (de) * 2002-08-05 2004-07-22 Brueninghaus Hydromatik Gmbh Gleitschuh und Verfahren zum Herstellen von erhabenen Anlageflächen eines Gleitschuhs
CN112483626B (zh) * 2020-12-02 2022-03-08 东南大学 一种基于增材制造的自润滑齿轮及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2128253A (en) * 1937-08-31 1938-08-30 Arthur E Johnson Hydraulic lock dry pipe valve with well testing and well flowing apparatus
US2198254A (en) * 1936-08-07 1940-04-23 Gen Motors Corp Method of making composite metal structures
US2299877A (en) * 1939-11-10 1942-10-27 Chrysler Corp Method of making porous metal frictional material
US2815567A (en) * 1953-04-15 1957-12-10 Federal Mogul Corp Process for making bearings
US2986464A (en) * 1959-04-27 1961-05-30 Federal Mogul Bower Bearings Method for manufacturing bearing materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974039A (en) * 1951-02-05 1961-03-07 Deventor Max Molding of metal powders
US2747256A (en) * 1953-08-31 1956-05-29 Bohn Aluminium & Brass Corp Process of forming composite strips of backing and bearing metals
DE1086052B (de) * 1957-05-08 1960-07-28 Sintermetal S R L Verfahren zur Herstellung von Verbundmetallstreifen fuer Lagerzwecke od. ae. Verwendungsmoeglichkeiten
GB892847A (en) * 1958-02-11 1962-04-04 John Risdon Amphlett Improvements in and relating to powdered metal moulding

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198254A (en) * 1936-08-07 1940-04-23 Gen Motors Corp Method of making composite metal structures
US2128253A (en) * 1937-08-31 1938-08-30 Arthur E Johnson Hydraulic lock dry pipe valve with well testing and well flowing apparatus
US2299877A (en) * 1939-11-10 1942-10-27 Chrysler Corp Method of making porous metal frictional material
US2815567A (en) * 1953-04-15 1957-12-10 Federal Mogul Corp Process for making bearings
US2986464A (en) * 1959-04-27 1961-05-30 Federal Mogul Bower Bearings Method for manufacturing bearing materials

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387475A (en) * 1965-01-26 1968-06-11 Alusuisse Process for the manufacture of sheet metal articles coated with a thermoplastic resin
US3451809A (en) * 1968-03-08 1969-06-24 Int Nickel Co Method of sintering maraging steel with boron additions
US3918923A (en) * 1972-08-16 1975-11-11 Riken Piston Ring Ind Co Ltd Wear resistant sintered alloy
US3869259A (en) * 1973-05-02 1975-03-04 Gen Motors Corp Composite sliding member
US4084669A (en) * 1975-08-25 1978-04-18 Hitachi, Ltd. Composite collector
US5075130A (en) * 1990-11-19 1991-12-24 The United States Of America As Represented By The Secretary Of The Army Surface modification of boron carbide to form pockets of solid lubricant
FR2806765A1 (fr) * 2000-03-24 2001-09-28 Senju Metal Industry Co Portee lisse sans plomb et procede pour sa fabrication
US20060272796A1 (en) * 2001-04-04 2006-12-07 Asmussen Erick R Flexible graphite flooring heat spreader
US8382004B2 (en) * 2001-04-04 2013-02-26 Graftech International Holdings Inc. Flexible graphite flooring heat spreader
EP1441873A1 (de) * 2001-10-17 2004-08-04 Federal-Mogul Corporation Mehrfachschichtpulvermetalllager
EP1441873A4 (de) * 2001-10-17 2006-03-22 Federal Mogul Corp Mehrfachschichtpulvermetalllager
US20100190667A1 (en) * 2007-07-20 2010-07-29 Holger Schmitt Lead-free sintered lubricating material and sinter powder for manufacture of the same
US8703660B2 (en) 2007-07-20 2014-04-22 Federal-Mogul Wiesaden GmbH Lead-free sintered lubricating material and sinter powder for manufacture of the same

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DE1293967B (de) 1969-04-30
GB1035216A (en) 1966-07-06

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