SE8204351L - Ferromagnetic powder prod. mfr. - using magnetisation between mixing and pressing to avoid segregation - Google Patents

Ferromagnetic powder prod. mfr. - using magnetisation between mixing and pressing to avoid segregation

Info

Publication number
SE8204351L
SE8204351L SE8204351A SE8204351A SE8204351L SE 8204351 L SE8204351 L SE 8204351L SE 8204351 A SE8204351 A SE 8204351A SE 8204351 A SE8204351 A SE 8204351A SE 8204351 L SE8204351 L SE 8204351L
Authority
SE
Sweden
Prior art keywords
mould
magnetisation
mfr
mixing
pressing
Prior art date
Application number
SE8204351A
Other languages
Swedish (sv)
Other versions
SE8204351D0 (en
Inventor
J N Skornyakov
A M Birman
R A Lizhdvoi
J V Artamonov
A F Klimenko
Original Assignee
Uk Nii Sp
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 Uk Nii Sp filed Critical Uk Nii Sp
Publication of SE8204351D0 publication Critical patent/SE8204351D0/en
Publication of SE8204351L publication Critical patent/SE8204351L/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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • B22F1/0081—
    • 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
    • B22F1/14—Treatment of metallic powder
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties
    • C22C2202/02—Magnetic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The mfr of products from ferromagnetic material powder, by mixing the powder to form a granulometrically homogeneous mixt., compacting the mixt by vibration in a mould, heating the mould to the sintering temp., hermetically sealing the mould and compressing it, is improved by subjecting the mixt before putting it in the mould, to magnetisation, pref by placing it in a permanent magnetic field of intensity 1-20 kA/m for 0.1-0.5 mins. Segregation of the powder fractions before and during mould filling and compaction is avoided.
SE8204351A 1980-11-28 1982-07-15 Ferromagnetic powder prod. mfr. - using magnetisation between mixing and pressing to avoid segregation SE8204351L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1980/000194 WO1982001837A1 (en) 1980-11-28 1980-11-28 Method and device for making articles of ferromagnetic powder materials

Publications (2)

Publication Number Publication Date
SE8204351D0 SE8204351D0 (en) 1982-07-15
SE8204351L true SE8204351L (en) 1982-07-15

Family

ID=21616688

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8204351A SE8204351L (en) 1980-11-28 1982-07-15 Ferromagnetic powder prod. mfr. - using magnetisation between mixing and pressing to avoid segregation

Country Status (6)

Country Link
JP (1) JPS58500131A (en)
AT (1) AT377717B (en)
DE (1) DE3050652C2 (en)
FR (1) FR2481165A1 (en)
SE (1) SE8204351L (en)
WO (1) WO1982001837A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4873605A (en) * 1986-03-03 1989-10-10 Innovex, Inc. Magnetic treatment of ferromagnetic materials
JP6885092B2 (en) * 2017-02-15 2021-06-09 スミダコーポレーション株式会社 Manufacturing method of coil parts

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1729A1 (en) * 1921-12-29 1924-09-15 С.Я. Турлыгин A method of manufacturing magnetic conductors from metal powders and sawdust
US3932760A (en) * 1967-12-22 1976-01-13 Inoue K Powder activation in an inert atmosphere
DE1909949A1 (en) * 1969-02-27 1970-09-10 Deutsche Edelstahlwerke Ag Metal powder with scale-like particles for - sintering porous objects such as filters or
SU529002A1 (en) * 1975-06-16 1976-09-25 Ждановский Металлургический Завод Installation for heat treatment of ferromagnetic powders
JPS5216686A (en) * 1975-07-30 1977-02-08 Sumitomo Electric Ind Ltd Wires and cables coated with foaming paint for the prevention of flame spreading
JPS5230757A (en) * 1975-09-05 1977-03-08 Hitachi Metals Ltd Method to manufacture homogenious mixture
GB1593029A (en) * 1977-06-27 1981-07-15 American Can Co Powder metallurgical processes
US4152178A (en) * 1978-01-24 1979-05-01 The United States Of America As Represented By The United States Department Of Energy Sintered rare earth-iron Laves phase magnetostrictive alloy product and preparation thereof
DE2828462A1 (en) * 1978-06-13 1980-01-03 Bbc Brown Boveri & Cie Mfg. permanent magnets by pressing fine powder - esp. alloys contg. lanthanide(s) and cobalt, where powder is granulated for easy filling of pressing dies

Also Published As

Publication number Publication date
WO1982001837A1 (en) 1982-06-10
JPS58500131A (en) 1983-01-20
JPS6221043B2 (en) 1987-05-11
DE3050652C2 (en) 1987-02-26
DE3050652A1 (en) 1982-11-18
AT377717B (en) 1985-04-25
ATA916080A (en) 1984-09-15
FR2481165B1 (en) 1983-11-18
FR2481165A1 (en) 1981-10-30
SE8204351D0 (en) 1982-07-15

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