GB1174572A - Method of Preparing Metal Particles - Google Patents
Method of Preparing Metal ParticlesInfo
- 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
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
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 900C 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.
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)
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 |
-
1965
- 1965-11-05 GB GB49633/66A patent/GB1174572A/en not_active Expired
Cited By (2)
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 |