GB495824A - Improvements in or relating to porous metal bearing composition - Google Patents

Improvements in or relating to porous metal bearing composition

Info

Publication number
GB495824A
GB495824A GB13562/37A GB1356237A GB495824A GB 495824 A GB495824 A GB 495824A GB 13562/37 A GB13562/37 A GB 13562/37A GB 1356237 A GB1356237 A GB 1356237A GB 495824 A GB495824 A GB 495824A
Authority
GB
United Kingdom
Prior art keywords
particles
iron
sintering
exposed
porous metal
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
GB13562/37A
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
Application filed by Individual filed Critical Individual
Publication of GB495824A publication Critical patent/GB495824A/en
Expired 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
    • F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
    • F16C32/0618—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via porous material
    • 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
    • F16C33/128—Porous bearings, e.g. bushes of sintered alloy
    • 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
    • F16C33/145—Special methods of manufacture; Running-in of sintered porous bearings
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/10—Alloys based on copper
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/30—Alloys based on one of tin, lead, antimony, bismuth, indium, e.g. materials for providing sliding surfaces
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • 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
    • F16C2220/28—Shaping by winding impregnated fibres

Abstract

In making porous metal bodies for bearing bushes, packing-rings, and the like by compressing and sintering spongy iron particles, the pressure may be exerted by filling into a hollow flexible cover which is exposed to hydraulic pressure. ALSO:Porous metal bodies for bearing bushes, packing-rings, and the like are made by compressing and sintering spongy iron particles of a size and porosity corresponding in a loosely poured state to a specific gravity of 1-1,5, without admixture of a bonding metal, the specific gravity of the pressed and sintered product being 4,5-5,5. The size of the original particles may be 1/20 -3 mm., and they may be obtained by disintegrating spongy iron ingots by cutting or tearing without crushing. The spongy iron may be produced from iron ore or by the reduction of waste iron oxide by means of a reducing gas, the reduced iron particles being sintered together under the action of their own weight. The pressure may be exerted from several directions, e.g. by means of upper and lower punches moving into a die from opposite directions; or the particles may be filled into a hollow flexible cover which is exposed to hydraulic pressure. Sintering may be effected at 1200 DEG C. in a reducing or non-oxidizing atmosphere for up to 2 hours. Pores on those parts of the surfaces not exposed to friction may be closed by solder, tin, copper oxide, powdered copper, metal precipitated from a salt solution, or artificial resin or other varnishes.
GB13562/37A 1936-05-14 1937-05-13 Improvements in or relating to porous metal bearing composition Expired GB495824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE495824X 1936-05-14

Publications (1)

Publication Number Publication Date
GB495824A true GB495824A (en) 1938-11-14

Family

ID=6544952

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13562/37A Expired GB495824A (en) 1936-05-14 1937-05-13 Improvements in or relating to porous metal bearing composition

Country Status (1)

Country Link
GB (1) GB495824A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657961A (en) * 1950-03-15 1953-11-03 Maschf Augsburg Nuernberg Ag Piston for internal-combustion engines
US2673131A (en) * 1950-11-24 1954-03-23 Norton Co Cylindrical liner
US2696434A (en) * 1947-10-02 1954-12-07 Thompson Prod Inc Process of producing cylinder sleeves
EP1233198A1 (en) * 2001-02-15 2002-08-21 Robert Bosch GmbH Sintered plain bearing
EP3356067A4 (en) * 2015-09-29 2019-07-31 Höganäs AB (publ) New iron-based composite powder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696434A (en) * 1947-10-02 1954-12-07 Thompson Prod Inc Process of producing cylinder sleeves
US2657961A (en) * 1950-03-15 1953-11-03 Maschf Augsburg Nuernberg Ag Piston for internal-combustion engines
US2673131A (en) * 1950-11-24 1954-03-23 Norton Co Cylindrical liner
EP1233198A1 (en) * 2001-02-15 2002-08-21 Robert Bosch GmbH Sintered plain bearing
EP3356067A4 (en) * 2015-09-29 2019-07-31 Höganäs AB (publ) New iron-based composite powder
US10702918B2 (en) 2015-09-29 2020-07-07 Höganäs Ab (Publ) Iron-based composite powder

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