GB562934A - Improved methods of making porous metal plates and apparatus therefor - Google Patents

Improved methods of making porous metal plates and apparatus therefor

Info

Publication number
GB562934A
GB562934A GB4109/43A GB410943A GB562934A GB 562934 A GB562934 A GB 562934A GB 4109/43 A GB4109/43 A GB 4109/43A GB 410943 A GB410943 A GB 410943A GB 562934 A GB562934 A GB 562934A
Authority
GB
United Kingdom
Prior art keywords
mould
powder
produced
graphite
metal plates
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
GB4109/43A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB562934A publication Critical patent/GB562934A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F3/02—Compacting only
    • B22F3/06—Compacting only by centrifugal forces
    • 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
    • B22F3/1103—Making porous workpieces or articles with particular physical characteristics
    • B22F3/1109—Inhomogenous pore distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Filtering Materials (AREA)

Abstract

562,934. Obtaining coherent masses from powdered materials. GENERAL MOTORS CORPORATION. March 13, 1943, No. 4109. Convention date, April 30, 1942. [Class 82 (i)] [Also in Groups V and XXII] Porous plates are produced by sintering metal powders, the sinteripg being effected in a mould in which the powder is loosely packed by centrifugal force. As applied to the production of a circular plate of corrugated form in crosssection for use as a filtering element, a two-part mould 28, 30 interfitting at 32 and, if desired, further registered by dowels 33 is mounted for rotation by an electric motor 40, powder being supplied at 34 from a funnel 42. Speeds of from 100 to 1750 r.p.m. are suitable. Higher speeds of the order of 10,000 r.p.m. may be adopted to yield plates when porosity gradually increases towards the centre and flat discs may be made. The mould may be made from graphite, oxidised chrome steel, or from steel dusted with powdered graphite or alundum. The mould may be subjected to axial vibration to assist in distributing the powder, and the vibration may be produced by a solenoid or by a cam.
GB4109/43A 1942-04-30 1943-03-13 Improved methods of making porous metal plates and apparatus therefor Expired GB562934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US562934XA 1942-04-30 1942-04-30

Publications (1)

Publication Number Publication Date
GB562934A true GB562934A (en) 1944-07-21

Family

ID=22003456

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4109/43A Expired GB562934A (en) 1942-04-30 1943-03-13 Improved methods of making porous metal plates and apparatus therefor

Country Status (1)

Country Link
GB (1) GB562934A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170440A (en) * 1985-02-05 1986-08-06 Centricast Ltd Casting of moulds for centrifugal casting
GB2170515A (en) * 1985-02-01 1986-08-06 Pall Corp Making sintered porous metal articles by centrifuging
US4822692A (en) * 1985-02-01 1989-04-18 Pall Corporation Seamless porous metal article and method of making
WO2004033746A2 (en) * 2002-10-04 2004-04-22 Rwth Aachen Production of coated foamed parts, and parts comprising a ceramic or hard material coating
WO2005075920A2 (en) * 2004-01-12 2005-08-18 L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Fin for heat exchanger and heat exchanger equipped with such fins

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828930A (en) * 1985-02-01 1989-05-09 Pall Corporation Seamless porous metal article and method of making
GB2170515B (en) * 1985-02-01 1989-06-14 Pall Corp Porous metal articles
EP0190035A2 (en) * 1985-02-01 1986-08-06 Pall Corporation Method of making a porous metal article and articles produced by the method
EP0190035A3 (en) * 1985-02-01 1986-11-26 Pall Corporation Method of making a porous metal article and articles produced by the method
GB2204064A (en) * 1985-02-01 1988-11-02 Pall Corp Producing sintered porous metal articles centrifugal casting
US4822692A (en) * 1985-02-01 1989-04-18 Pall Corporation Seamless porous metal article and method of making
GB2170515A (en) * 1985-02-01 1986-08-06 Pall Corp Making sintered porous metal articles by centrifuging
GB2204064B (en) * 1985-02-01 1989-06-07 Pall Corp Method of making a porous metal article
GB2170440A (en) * 1985-02-05 1986-08-06 Centricast Ltd Casting of moulds for centrifugal casting
WO2004033746A3 (en) * 2002-10-04 2004-06-17 Rwth Aachen Production of coated foamed parts, and parts comprising a ceramic or hard material coating
WO2004033746A2 (en) * 2002-10-04 2004-04-22 Rwth Aachen Production of coated foamed parts, and parts comprising a ceramic or hard material coating
WO2005075920A2 (en) * 2004-01-12 2005-08-18 L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Fin for heat exchanger and heat exchanger equipped with such fins
WO2005075920A3 (en) * 2004-01-12 2005-10-13 Air Liquide Fin for heat exchanger and heat exchanger equipped with such fins
JP2007520682A (en) * 2004-01-12 2007-07-26 レール・リキード−ソシエテ・アノニム・ア・ディレクトワール・エ・コンセイユ・ドゥ・スールベイランス・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード Fins for heat exchangers and heat exchangers with a plurality of such fins

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