GB871065A - Improvements in or relating to processes for the manufacture of heat resistant articles - Google Patents

Improvements in or relating to processes for the manufacture of heat resistant articles

Info

Publication number
GB871065A
GB871065A GB28551/57A GB2855157A GB871065A GB 871065 A GB871065 A GB 871065A GB 28551/57 A GB28551/57 A GB 28551/57A GB 2855157 A GB2855157 A GB 2855157A GB 871065 A GB871065 A GB 871065A
Authority
GB
United Kingdom
Prior art keywords
powder
alloy
chromium
stream
nickel
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
GB28551/57A
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of GB871065A publication Critical patent/GB871065A/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
    • 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
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C22C1/1042—Alloys containing non-metals starting from a melt by atomising
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

To produce a heat-resistant article from a metal alloy, having a specific gravity of at least five, a stream of the alloy is dispersed by water under pressure which is expelled from a nozzle surrounding the stream and having an annular outlet so that the water impinges on the stream at an angle of incidence of approximately 15 degrees, wherein a powder is produced from the dispersed melt under oxidizing conditions. These conditions, and the distance between said outlet and a quenching bath for the dispersed melt, are adjusted so that the powder has an oxygen content of between 0.05 and 1.5% and the oxides in the powder are homogeneously distributed therein and the oxidized powder is compacted and shaped into the article. Preferably, the alloy is a chromium-nickel steel, or a nickel-cobalt, nickel-chromium or chromium-cobalt alloy. A suitable apparatus for the above process is described in Specification 765,613.
GB28551/57A 1956-11-26 1957-09-10 Improvements in or relating to processes for the manufacture of heat resistant articles Expired GB871065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE871065X 1956-11-26

Publications (1)

Publication Number Publication Date
GB871065A true GB871065A (en) 1961-06-21

Family

ID=6810763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28551/57A Expired GB871065A (en) 1956-11-26 1957-09-10 Improvements in or relating to processes for the manufacture of heat resistant articles

Country Status (1)

Country Link
GB (1) GB871065A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132371A2 (en) * 1983-07-22 1985-01-30 Inco Alloys International, Inc. Process for making alloys having a coarse elongated grain structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132371A2 (en) * 1983-07-22 1985-01-30 Inco Alloys International, Inc. Process for making alloys having a coarse elongated grain structure
EP0132371A3 (en) * 1983-07-22 1986-06-04 Inco Alloys International, Inc. Process for making alloys having a coarse elongated grain structure
AU570059B2 (en) * 1983-07-22 1988-03-03 Inco Alloys International Inc. Non-ferrous ni-cr-fe alloys having a coarse elongated grain structure

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