GB423823A - Improvements in the manufacture of pulverulent metal alloys - Google Patents

Improvements in the manufacture of pulverulent metal alloys

Info

Publication number
GB423823A
GB423823A GB1301/34A GB130134A GB423823A GB 423823 A GB423823 A GB 423823A GB 1301/34 A GB1301/34 A GB 1301/34A GB 130134 A GB130134 A GB 130134A GB 423823 A GB423823 A GB 423823A
Authority
GB
United Kingdom
Prior art keywords
nickel
substances
cobalt
heating
metal
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
GB1301/34A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB423823A publication Critical patent/GB423823A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A23/00—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
    • F41A23/28—Wheeled-gun mountings; Endless-track gun mountings
    • 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
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/30—Making metallic powder or suspensions thereof using chemical processes with decomposition of metal compounds, e.g. by pyrolysis
    • B22F9/305—Making metallic powder or suspensions thereof using chemical processes with decomposition of metal compounds, e.g. by pyrolysis of metal carbonyls
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/20—Dry methods smelting of sulfides or formation of mattes from metal carbonyls
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

Pulverulent alloys are produced by thermally decomposing a mixture of metal carbonyls, treating the particles of the resulting metal powder with a substance hindering the frilling together of the particles or with a material which on heating will yield such a substance and then heating the powder in an inert or reducing atmosphere at temperatures to effect alloying. Nickel-iron alloys containing between 40-80 per cent of nickel, iron-nickel-cobalt alloys containing 25-50 per cent of iron, 30-60 of nickel and 15-30 of cobalt with or without up to 10 of molybdenum or tungsten and nickel-cobalt, nickel-cobalt-moly-bdenum and nickel-cobalt-tungsten alloys are referred to. The substances added to the metal powders may comprise refractory substances, such as oxides of alkaline earth metal or aluminium or zinc, ceramic substances, silica, titanic acid or difficultly reducible or fusible compounds such as pulverized kaolin, asbestos or mica. These substances may form coatings on the metal or metal coatings may be produced by heating the powders in air to 125-150 DEG C., or the substances may be wetted with water and then heated to 140-175 DEG C. The additional substances may be removed from the powders after heating by any suitable means. The temperatures used for the heating are preferably between 900 and 1000 DEG C. In an example 20 parts of a nickel-iron powder consisting of 41,8 per cent of nickel, 1,4 of carbon and the rest iron is made into a paste with a solution of 1,2 parts of aluminium nitrate in 4 parts of water. The paste is then heated for 12 hours at 1000 DEG C., in flowing hydrogen, the carbon content being lowered to 0,04 per cent. The frothy mass containing some aluminium oxide is ground in a ball mill, heated for about 1/2 hour at 600 DEG C., and worked up into cores for pupin coils.
GB1301/34A 1933-01-24 1934-01-13 Improvements in the manufacture of pulverulent metal alloys Expired GB423823A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE423823X 1933-01-24

Publications (1)

Publication Number Publication Date
GB423823A true GB423823A (en) 1935-02-08

Family

ID=6472738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1301/34A Expired GB423823A (en) 1933-01-24 1934-01-13 Improvements in the manufacture of pulverulent metal alloys

Country Status (2)

Country Link
FR (1) FR423823A (en)
GB (1) GB423823A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516058A (en) * 1943-09-30 1950-07-18 Bell Telephone Labor Inc Apparatus for plating of metals
US2651105A (en) * 1942-04-07 1953-09-08 Electro Chimie Metal Manufacture of permanent magnets
US2699458A (en) * 1950-05-11 1955-01-11 Basf Ag Porous sintered metal bodies for a storage battery
US3716358A (en) * 1966-01-25 1973-02-13 A Oka Colloid metallurgy

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2651105A (en) * 1942-04-07 1953-09-08 Electro Chimie Metal Manufacture of permanent magnets
US2516058A (en) * 1943-09-30 1950-07-18 Bell Telephone Labor Inc Apparatus for plating of metals
US2699458A (en) * 1950-05-11 1955-01-11 Basf Ag Porous sintered metal bodies for a storage battery
US3716358A (en) * 1966-01-25 1973-02-13 A Oka Colloid metallurgy

Also Published As

Publication number Publication date
FR423823A (en) 1911-04-27

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