GB1458961A - Preparation of porous metal structures - Google Patents

Preparation of porous metal structures

Info

Publication number
GB1458961A
GB1458961A GB5387174A GB5387174A GB1458961A GB 1458961 A GB1458961 A GB 1458961A GB 5387174 A GB5387174 A GB 5387174A GB 5387174 A GB5387174 A GB 5387174A GB 1458961 A GB1458961 A GB 1458961A
Authority
GB
United Kingdom
Prior art keywords
plasticizer
polyolefin
sintered
porous metal
dec
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
GB5387174A
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.)
WR Grace and Co Conn
WR Grace and Co
Original Assignee
WR Grace and Co Conn
WR Grace and 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 WR Grace and Co Conn, WR Grace and Co filed Critical WR Grace and Co Conn
Publication of GB1458961A publication Critical patent/GB1458961A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2027—Metallic material
    • B01D39/2031—Metallic material the material being particulate
    • B01D39/2034—Metallic material the material being particulate sintered or bonded by inorganic agents
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • 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
    • B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1458961 Making sintered porous metal bodies W R GRACE & CO 12 Dec 1974 [19 Dec 1973] 53871/74 Heading C7D Sintered porous metal bodies such as filters are made from a shaped composition comprising in weight per cent 2-70 of a polyolefin with a molecular weight # 150,000 and a standard load melt index of zero, 29-95 of a metal powder and 3-70 of a plasticizer the plasticizer being extracted by dissolution and after pre-heating e.g. at 240-700‹C to at least partly remove the polyolefin the shaped composition is sintered. The metal powder may be steel; the polyolefin may be polyethylene or a copolymer of ethylene with a comonomer of propylene, butene -1 and isobutene; and the plasticizer may be mineral oil, diethylene, triethylene, propylene, dipropylene, trimethylene, tetramethylene or 2, 3-butylene glycol, glycerin, glycerol monoacetate, triethyl phosphate, polyvinyl alcohol or polyvinyl pyrrolidone. The components are mixed together by heating to below the temperature at which the plasticizer or polyolefin decomposes and mixing at 30-200 r.p.m. The mixture is then shaped by moulding or extrusion at 125-175‹C and after extracting the plasticizer with a solvent and preheating at 240-700‹C the body in the case of steel powder is sintered at 700-900‹C.
GB5387174A 1973-12-19 1974-12-12 Preparation of porous metal structures Expired GB1458961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42605973A 1973-12-19 1973-12-19

Publications (1)

Publication Number Publication Date
GB1458961A true GB1458961A (en) 1976-12-22

Family

ID=23689111

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5387174A Expired GB1458961A (en) 1973-12-19 1974-12-12 Preparation of porous metal structures

Country Status (5)

Country Link
JP (1) JPS50116307A (en)
DE (1) DE2459475A1 (en)
FR (1) FR2255130A1 (en)
GB (1) GB1458961A (en)
IT (1) IT1027793B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826799A (en) * 1988-04-14 1989-05-02 W. R. Grace & Co.-Conn. Shaped catalyst and process for making it
US5935897A (en) * 1995-09-12 1999-08-10 Basf Aktiengesellschaft Monomodal and polymodal catalyst supports and catalysts having narrow pore size distributions and their production
US5935898A (en) * 1995-09-12 1999-08-10 Basf Aktiengesellschaft Monomodal and polymodal catalyst supports and catalysts having narrow pore size distributions and their production
WO2006001763A1 (en) * 2004-06-23 2006-01-05 Höganäs Ab Lubricants for insulated soft magnetic iron-based powder compositions
WO2011133100A1 (en) * 2010-04-20 2011-10-27 Seco Tools Ab Method for producing cemented carbide products
CN105008072A (en) * 2013-03-04 2015-10-28 株式会社神户制钢所 Binder for powder metallurgy, mixed powder for powder metallurgy, and sintered body

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5365206A (en) * 1976-11-25 1978-06-10 Hitachi Cable Ltd Preparation of porous metal
AU7961882A (en) * 1981-01-29 1982-08-05 Nippon Seisen Co. Ltd. Metallic sintered body
DE3816337A1 (en) * 1988-05-13 1989-11-23 Eckart Standard Bronzepulver Porous metal object, method for the production of a porous metal object of this kind and the use of a porous metal object of this kind
DE3824993A1 (en) * 1988-07-22 1990-01-25 Michael Laumen Thermotechnik Process for producing porous, permeable structural components from a pulverulent or granular starting material
DE4120687C1 (en) * 1991-06-22 1993-01-21 Schunk Sintermetalltechnik Gmbh, 6301 Heuchelheim, De Porous, sintered parts prepn., used e.g. as filters, catalyst carriers - comprises mixing metal or ceramic powder with organic binder or plasticiser contg. polymer of vinyl] aromatic cpd.
SE9703151D0 (en) * 1997-09-01 1997-09-01 Hoeganaes Ab Lubricant for metallurgical powder compositions

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826799A (en) * 1988-04-14 1989-05-02 W. R. Grace & Co.-Conn. Shaped catalyst and process for making it
US5935897A (en) * 1995-09-12 1999-08-10 Basf Aktiengesellschaft Monomodal and polymodal catalyst supports and catalysts having narrow pore size distributions and their production
US5935898A (en) * 1995-09-12 1999-08-10 Basf Aktiengesellschaft Monomodal and polymodal catalyst supports and catalysts having narrow pore size distributions and their production
WO2006001763A1 (en) * 2004-06-23 2006-01-05 Höganäs Ab Lubricants for insulated soft magnetic iron-based powder compositions
AU2005257719B2 (en) * 2004-06-23 2008-01-31 Hoganas Ab Lubricants for insulated soft magnetic iron-based powder compositions
CN100488667C (en) * 2004-06-23 2009-05-20 霍加纳斯股份有限公司 Lubricants for insulated soft magnetic iron-based powder compositions
US7718082B2 (en) 2004-06-23 2010-05-18 Höganäs Ab Lubricants for insulated soft magnetic iron-based powder compositions
WO2011133100A1 (en) * 2010-04-20 2011-10-27 Seco Tools Ab Method for producing cemented carbide products
CN105008072A (en) * 2013-03-04 2015-10-28 株式会社神户制钢所 Binder for powder metallurgy, mixed powder for powder metallurgy, and sintered body
EP2965839A4 (en) * 2013-03-04 2016-10-05 Kobe Steel Ltd Binder for powder metallurgy, mixed powder for powder metallurgy, and sintered body
CN105008072B (en) * 2013-03-04 2017-08-29 株式会社神户制钢所 Powder used in metallurgy adhesive and mixed powder for powder metallurgy and sintered body
US10240032B2 (en) 2013-03-04 2019-03-26 Kobe Steel, Ltd. Binder for powder metallurgy, mixed powder for powder metallurgy, and sintered body

Also Published As

Publication number Publication date
FR2255130A1 (en) 1975-07-18
IT1027793B (en) 1978-12-20
JPS50116307A (en) 1975-09-11
DE2459475A1 (en) 1975-07-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee