GB1015491A - Improvements in or relating to porous metallic bodies and fabrication methods therefor - Google Patents

Improvements in or relating to porous metallic bodies and fabrication methods therefor

Info

Publication number
GB1015491A
GB1015491A GB41959/62A GB4195962A GB1015491A GB 1015491 A GB1015491 A GB 1015491A GB 41959/62 A GB41959/62 A GB 41959/62A GB 4195962 A GB4195962 A GB 4195962A GB 1015491 A GB1015491 A GB 1015491A
Authority
GB
United Kingdom
Prior art keywords
sintered
aluminium
aluminium powder
copper
powder
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
GB41959/62A
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.)
Alloys Research and Manufacturing Corp
Original Assignee
Alloys Research and Manufacturing 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 Alloys Research and Manufacturing Corp filed Critical Alloys Research and Manufacturing Corp
Publication of GB1015491A publication Critical patent/GB1015491A/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
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0408—Light metal alloys
    • C22C1/0416—Aluminium-based alloys
    • 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
    • B22F3/10—Sintering only
    • B22F3/1035—Liquid phase sintering
    • 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
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B22F3/26—Impregnating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0408—Light metal alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

A sintered porous body of aluminium is formed from a powder mixture of aluminium and up to 5% of powdered copper or up to 15% powdered magnesium which is shaped preferably at a maximum pressure of 7 t.s.i. and sintered at a temperature, preferably 550-625 DEG C., which is above the eutectic temperature but below the solidus for the composition and below the melting temperature of the constituent metals. The aluminium powder is preferably minus 100 plus 300 mesh Tyler with a maximum of 0.4% minus 325 mesh and is produced by atomizing molten aluminium in an atmosphere of argon, helium, neon, krypton or nitrogen. The aluminium powder may be coated with copper or magnesium and the mixture also includes 1-3% of sterotex as a binder. Sintering is carried out in hydrogen, nitrogen or an inert gas having a dew point of -80 DEG F. or lower. The sintered bodies have a porosity of 10-50% by volume and may be used as bearings or cigarette filters. The sintered bearing may be impreganted with oil before or after coining. Brass or copper plus nickel may also be added to the aluminium powder. The sintered product may be heat treated, water quenched and vacuum heat treated to produce an age hardened structure. In a modified method the mixed powders are sintered without any compaction to form a porous sinter cake which is coined, extruded or hot or cold rolled and impregnated with lead. The compacts are sintered in a tubular retort furnace, Figs. 1 and 2 (not shown), or a pot furnace or a continuous belt furnace. The green compacts are loaded into partitioned boats containing aluminium powder which acts as a getter.
GB41959/62A 1961-11-07 1962-11-06 Improvements in or relating to porous metallic bodies and fabrication methods therefor Expired GB1015491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US150826A US3232754A (en) 1961-11-07 1961-11-07 Porous metallic bodies and fabrication methods therefor

Publications (1)

Publication Number Publication Date
GB1015491A true GB1015491A (en) 1966-01-05

Family

ID=22536143

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41959/62A Expired GB1015491A (en) 1961-11-07 1962-11-06 Improvements in or relating to porous metallic bodies and fabrication methods therefor

Country Status (4)

Country Link
US (1) US3232754A (en)
CH (1) CH447620A (en)
DE (1) DE1458315B2 (en)
GB (1) GB1015491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113245543A (en) * 2021-07-15 2021-08-13 江苏集萃先进金属材料研究所有限公司 Copper powder, preparation method thereof and capillary core prepared from copper powder

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359095A (en) * 1964-02-19 1967-12-19 Dow Chemical Co Sintering of loose particulate aluminum metal
US3366479A (en) * 1965-04-28 1968-01-30 Alloys Res & Mfg Corp Powder metallurgy
US3326676A (en) * 1965-05-05 1967-06-20 Deventer Werke G M B H Method of producing coherent bodies of metallic particles
US3506438A (en) * 1967-07-24 1970-04-14 Mallory & Co Inc P R Method of producing beryllium composites by liquid phase sintering
JPS61107091A (en) * 1984-10-26 1986-05-24 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Vessel for processing material
DE4034637A1 (en) * 1989-10-31 1991-05-02 Eckart Standard Bronzepulver Porous sintered aluminium (alloy) body prodn. - from ground mixt. contg. eutectic-forming additive
US5248475A (en) * 1991-10-24 1993-09-28 Derafe, Ltd. Methods for alloy migration sintering
JPH08325660A (en) * 1995-05-31 1996-12-10 Ndc Co Ltd Porous aluminum sintered material
DE19738919C1 (en) 1997-09-05 1999-04-29 Maxon Motor Gmbh Process for manufacturing a plain bearing and plain bearing
DE10066005C2 (en) * 2000-06-28 2003-04-10 Eisenmann Kg Maschbau Process for sintering aluminum-based sintered parts
US8329091B2 (en) * 2009-01-30 2012-12-11 Widener University Porous metallic structures

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155651A (en) * 1937-06-17 1939-04-25 Hardy Metallurg Corp Manufacture of aluminum alloys
US2287251A (en) * 1939-07-07 1942-06-23 Jones William David Manufacture of nonporous metal articles
US2241095A (en) * 1940-02-01 1941-05-06 Gen Motors Corp Method of making porous metal structures
US2746742A (en) * 1949-03-24 1956-05-22 Int Nickel Co Apparatus for producing porous metal plates
US2746741A (en) * 1954-01-27 1956-05-22 Mannesmann Ag Apparatus for the production of wrought metal shapes from metal powder
US3007794A (en) * 1957-08-15 1961-11-07 Birmingham Small Arms Co Ltd Production of ducted articles
US2994606A (en) * 1958-12-03 1961-08-01 Gen Motors Corp Method of manufacturing sintered bearings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113245543A (en) * 2021-07-15 2021-08-13 江苏集萃先进金属材料研究所有限公司 Copper powder, preparation method thereof and capillary core prepared from copper powder

Also Published As

Publication number Publication date
DE1458315A1 (en) 1968-10-17
US3232754A (en) 1966-02-01
CH447620A (en) 1967-11-30
DE1458315B2 (en) 1970-06-11

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