GB327419A - Improvements in or appertaining to the manufacture of metal dust - Google Patents

Improvements in or appertaining to the manufacture of metal dust

Info

Publication number
GB327419A
GB327419A GB2846528A GB2846528A GB327419A GB 327419 A GB327419 A GB 327419A GB 2846528 A GB2846528 A GB 2846528A GB 2846528 A GB2846528 A GB 2846528A GB 327419 A GB327419 A GB 327419A
Authority
GB
United Kingdom
Prior art keywords
alloy
per cent
nickel
appertaining
manufacture
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
GB2846528A
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.)
ARTHUR FREDERICK BERNARD NORWO
STC PLC
Original Assignee
ARTHUR FREDERICK BERNARD NORWO
Standard Telephone and Cables PLC
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 ARTHUR FREDERICK BERNARD NORWO, Standard Telephone and Cables PLC filed Critical ARTHUR FREDERICK BERNARD NORWO
Priority to GB2846528A priority Critical patent/GB327419A/en
Publication of GB327419A publication Critical patent/GB327419A/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
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • 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
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B22F2009/041—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by mechanical alloying, e.g. blending, milling

Landscapes

  • Soft Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)

Abstract

327,419. Standard Telephones & Cables, Ltd., Chaston, J. C., and Norwood, A. F. B. Oct. 4, 1928. Metal powder.-Metallic dust particularly of magnetic material for use in making magnetic cores, is produced by annealing the powder between two crushing operations. When using an alloy of 80 per cent nickel 20 per cent iron, if 25 lbs. is annealed in a closed box a temperature of 100‹ C. should be employed for one hour followed by cooling in air. The alloy may be embrittled by partial oxidation followed by hot rolling. Cobalt or chromium may also be contained in the alloy. The nickel-iron alloy may be rendered brittle as described in Specification 290,736. Specification 321,957 also is referred to.
GB2846528A 1928-10-04 1928-10-04 Improvements in or appertaining to the manufacture of metal dust Expired GB327419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2846528A GB327419A (en) 1928-10-04 1928-10-04 Improvements in or appertaining to the manufacture of metal dust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2846528A GB327419A (en) 1928-10-04 1928-10-04 Improvements in or appertaining to the manufacture of metal dust

Publications (1)

Publication Number Publication Date
GB327419A true GB327419A (en) 1930-04-04

Family

ID=10276046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2846528A Expired GB327419A (en) 1928-10-04 1928-10-04 Improvements in or appertaining to the manufacture of metal dust

Country Status (1)

Country Link
GB (1) GB327419A (en)

Similar Documents

Publication Publication Date Title
GB327419A (en) Improvements in or appertaining to the manufacture of metal dust
GB439138A (en) Improvements in or relating to electromagnetic relays
GB448046A (en) Improvements in or relating to magnetic materials
GB342868A (en) Improvements relating to sulphur resisting alloys
GB302394A (en) Magnetic alloys
GB489261A (en) Improvements relating to the magnetic recording and reproducing of sound
GB372837A (en) Manufacture of magnetic dust cores
GB446602A (en) Improvements in and relating to band or ring-shaped magnetic cores
GB355456A (en) Improved magnetic alloys
GB436401A (en) Improvements in the manufacture of compound metal bodies
GB481249A (en) Improvements in or relating to magnetic cores of inductive devices
GB733535A (en) Improvements relating to thermocouples
GB361393A (en) Improvements in moving coil sound recorders
GB451601A (en) Improvements in and relating to the production of heat-resistant articles for use at high temperatures
GB303928A (en) Methods of treating magnetic materials
GB387663A (en) Permanent magnets resistant to changes of temperature
GB459319A (en) Improvements in electric resistance alloys
GB263059A (en) Improvements in magnetic materials
GB401352A (en) Improvements in magnetic cores of powdered material
GB751987A (en) Alloy steel for centrifugal-casting moulds
GB716473A (en) Process for improving the properties of sintered bodies
GB393918A (en) Improvements in and relating to ferromagnetic material
GB346788A (en) Improvements in magnetic material and in the method of making same
GB327865A (en) Improvements in the manufacture of nickel iron alloys
GB273638A (en) Magnetic materials