SE9702154L - Method of manufacturing a powder mixture - Google Patents

Method of manufacturing a powder mixture

Info

Publication number
SE9702154L
SE9702154L SE9702154A SE9702154A SE9702154L SE 9702154 L SE9702154 L SE 9702154L SE 9702154 A SE9702154 A SE 9702154A SE 9702154 A SE9702154 A SE 9702154A SE 9702154 L SE9702154 L SE 9702154L
Authority
SE
Sweden
Prior art keywords
powder
drying
slurry
bodies
hydrophobic modified
Prior art date
Application number
SE9702154A
Other languages
Swedish (sv)
Other versions
SE9702154D0 (en
Inventor
Ove Alm
Mats Waldenstroem
Jenny Johansson
Lennart Bergstroem
Bo Nelander
Annika Hansson
Ulf Jutterstroem
Peter Dahlberg
Styrbjoern Amberg
Original Assignee
Sandvik Ab
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
Priority claimed from SE9602598A external-priority patent/SE9602598D0/en
Priority claimed from SE9603626A external-priority patent/SE9603626D0/en
Application filed by Sandvik Ab filed Critical Sandvik Ab
Priority to SE9702154A priority Critical patent/SE9702154L/en
Publication of SE9702154D0 publication Critical patent/SE9702154D0/en
Publication of SE9702154L publication Critical patent/SE9702154L/en

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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • 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
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Powder Metallurgy (AREA)
  • Glanulating (AREA)

Abstract

In a method of making bodies by powder metallurgical methods comprising:(a) wet milling, in an alcohol-water solution, a powder mixture containing hard constituents of sizes up to 2 mu m (preferably up to 1 mu m); (b) spray-drying the milled mixture; (c) pressing the dried powder into bodies of the desired shape; and (d) sintering; 0.1-100 (preferably 1-50) g/l of a thickener selected from crosslinked acrylate emulsions, hydrophobic modified hydroxy ethylcellulose (HMHEC), styrene/maleic acid block copolymers, hydrophobic modified ethylene oxide/urethane (HEUR), xanthan polysaccharide (XPS), ethylhydroxyethyl cellulose (EHEC) and mixtures is added to the slurry between steps (a) and (b). Also claimed is a slurry for drying by spray drying containing a powder and a fluid containing thickeners as above.
SE9702154A 1996-06-28 1997-06-05 Method of manufacturing a powder mixture SE9702154L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9702154A SE9702154L (en) 1996-06-28 1997-06-05 Method of manufacturing a powder mixture

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9602598A SE9602598D0 (en) 1996-06-28 1996-06-28 Method of making powder mixtures
SE9603626A SE9603626D0 (en) 1996-10-02 1996-10-02 Method of spray drying powder mixtures
SE9702154A SE9702154L (en) 1996-06-28 1997-06-05 Method of manufacturing a powder mixture

Publications (2)

Publication Number Publication Date
SE9702154D0 SE9702154D0 (en) 1997-06-05
SE9702154L true SE9702154L (en) 1997-12-29

Family

ID=27355830

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9702154A SE9702154L (en) 1996-06-28 1997-06-05 Method of manufacturing a powder mixture

Country Status (1)

Country Link
SE (1) SE9702154L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE529202C2 (en) * 2005-05-17 2007-05-29 Sandvik Intellectual Property Methods of manufacturing an agglomerated powder mixture of a slurry and agglomerated powder

Also Published As

Publication number Publication date
SE9702154D0 (en) 1997-06-05

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