GB1174572A - Method of Preparing Metal Particles - Google Patents

Method of Preparing Metal Particles

Info

Publication number
GB1174572A
GB1174572A GB49633/66A GB4963366A GB1174572A GB 1174572 A GB1174572 A GB 1174572A GB 49633/66 A GB49633/66 A GB 49633/66A GB 4963366 A GB4963366 A GB 4963366A GB 1174572 A GB1174572 A GB 1174572A
Authority
GB
United Kingdom
Prior art keywords
particles
coated
mixture
metal
nov
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
GB49633/66A
Inventor
Charles Maho
Rudolf Eppe
Wilhelm Abeck
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.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to GB49633/66A priority Critical patent/GB1174572A/en
Publication of GB1174572A publication Critical patent/GB1174572A/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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • 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
    • B22F1/102—Metallic powder coated with 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

1,174,572. Coated metal particles. GEVAERT-AGFA N.V. 4 Nov., 1966 [5 Nov., 1965], No. 49633/66. Divided out of 1,174,571. Heading B2K. [Also in Division C7] Metal, e.g. steel, particles are formed by feeding a wire into a gas flame and passing a high velocity gas stream around the flame to blast the molten metal in the form of drops into water which includes an antioxidant, e.g. alkylamines, and diphenylamine. The wire may be of magnetic material coated with copper. The particles may be subsequently mixed with particles of tungsten trisulphide, and then heated at 400 to 900‹C in a mixture of hydrogen and nitrogen. The particles may be coated with a resin for use in xerography. To prevent the particles from sticking they may be coated in a mixture (50/50) of toluene and isopropanol containing 0.5% by weight of a compound:- and 0.5% by weight of a 50/50 mixture of organic phosphates having the formula:- where R is an alkyl or aryl radical and n is 5 to 35. A coating of cellulose nitrate and ethyl cellulose acetate, a polyamide, an epoxy resin, a phenol or urea formaldehyde resin or colophony may also be applied.
GB49633/66A 1965-11-05 1965-11-05 Method of Preparing Metal Particles Expired GB1174572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB49633/66A GB1174572A (en) 1965-11-05 1965-11-05 Method of Preparing Metal Particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49633/66A GB1174572A (en) 1965-11-05 1965-11-05 Method of Preparing Metal Particles

Publications (1)

Publication Number Publication Date
GB1174572A true GB1174572A (en) 1969-12-17

Family

ID=10453025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49633/66A Expired GB1174572A (en) 1965-11-05 1965-11-05 Method of Preparing Metal Particles

Country Status (1)

Country Link
GB (1) GB1174572A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348774A1 (en) * 1976-04-23 1977-11-18 Powdrex Ltd METAL POWDER PRODUCTION PROCESS
EP0215168A1 (en) * 1984-04-09 1987-03-25 Crucible Materials Corporation Method for making rare-earth element containing permanent magnets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348774A1 (en) * 1976-04-23 1977-11-18 Powdrex Ltd METAL POWDER PRODUCTION PROCESS
EP0215168A1 (en) * 1984-04-09 1987-03-25 Crucible Materials Corporation Method for making rare-earth element containing permanent magnets

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed