GB1038461A - Process for making composite porous elements - Google Patents

Process for making composite porous elements

Info

Publication number
GB1038461A
GB1038461A GB468963A GB468963A GB1038461A GB 1038461 A GB1038461 A GB 1038461A GB 468963 A GB468963 A GB 468963A GB 468963 A GB468963 A GB 468963A GB 1038461 A GB1038461 A GB 1038461A
Authority
GB
United Kingdom
Prior art keywords
microns
powder
layer
petroleum jelly
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
GB468963A
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.)
POUDRES METALLIQUES ALLIAGES SPECIAUX UGINE CARBONE
Original Assignee
POUDRES METALLIQUES ALLIAGES SPECIAUX UGINE CARBONE
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 POUDRES METALLIQUES ALLIAGES SPECIAUX UGINE CARBONE filed Critical POUDRES METALLIQUES ALLIAGES SPECIAUX UGINE CARBONE
Publication of GB1038461A publication Critical patent/GB1038461A/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
    • 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
    • B22F7/002—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 porous nature
    • 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

Abstract

Sintered porous metal elements such as filters are made by extruding, drawing or rolling at ambient temperature a composite formed of a number of superposed layers of pastes of metal powders and binders and sintering the deformed compact. The particle size of the metal of each layer is different but the layers may be of the same metal. The binders may be paraffins, petroleum jelly, fats and synthetic plastics. According to one example two superposed layers of bronze powder and a binder of petroleum jelly and paraffin the bronze of one layer having a size of 10-30 microns and a size of 50-100 microns in the other layer is extruded and sintered in Al2O3 in H2 at 725 DEG C. In another example a composite nickel pipe is made from a nickel powder of 1-5 microns and another nickel powder of 5-16 microns using a petroleum jelly paraffin lubricant. The coarse powder paste is cast into around a central cone of an extension mould, the core is removed and the paste of fine powder is cast into the core cavity. Extrusion and sintering at 850 DEG C. is then carried out.
GB468963A 1962-02-05 1963-02-05 Process for making composite porous elements Expired GB1038461A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR886903A FR1321462A (en) 1962-02-05 1962-02-05 Manufacturing process for composite porous elements

Publications (1)

Publication Number Publication Date
GB1038461A true GB1038461A (en) 1966-08-10

Family

ID=8771929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB468963A Expired GB1038461A (en) 1962-02-05 1963-02-05 Process for making composite porous elements

Country Status (5)

Country Link
CH (1) CH413788A (en)
DE (1) DE1458285B2 (en)
ES (1) ES284598A1 (en)
FR (1) FR1321462A (en)
GB (1) GB1038461A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764456A2 (en) * 1995-09-22 1997-03-26 Morton International, Inc. Unitary drop-in airbag filters
EP0804310A1 (en) * 1993-08-17 1997-11-05 Trumen International, LLC Process for the production of porous membranes

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1094957A (en) * 1976-04-23 1981-02-03 Harry M. Kennard Filter medium
US4088576A (en) * 1976-12-13 1978-05-09 Mott Lambert H Method of manufacture of tubular inertial filter
DE2757345C2 (en) * 1977-12-22 1986-01-23 Wacker-Chemie GmbH, 8000 München Process for foam destruction when removing residual monomer from reaction mixtures
US5114447A (en) * 1991-03-12 1992-05-19 Mott Metallurgical Corporation Ultra-high efficiency porous metal filter
EP1886748A1 (en) * 2006-08-02 2008-02-13 ILLIG Maschinenbau GmbH & Co. KG Process for the making of sintered articles, the articles as well as the use of such articles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0804310A1 (en) * 1993-08-17 1997-11-05 Trumen International, LLC Process for the production of porous membranes
EP0804310A4 (en) * 1993-08-17 1999-07-14 Trumen International Llc Process for the production of porous membranes
EP0764456A2 (en) * 1995-09-22 1997-03-26 Morton International, Inc. Unitary drop-in airbag filters
EP0764456A3 (en) * 1995-09-22 1997-12-10 Morton International, Inc. Unitary drop-in airbag filters

Also Published As

Publication number Publication date
DE1458285B2 (en) 1971-06-24
ES284598A1 (en) 1963-05-16
FR1321462A (en) 1963-03-22
CH413788A (en) 1966-05-31
DE1458285A1 (en) 1969-09-18

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