GB823407A - Improvements in or relating to the production of metal powders - Google Patents

Improvements in or relating to the production of metal powders

Info

Publication number
GB823407A
GB823407A GB2305156A GB2305156A GB823407A GB 823407 A GB823407 A GB 823407A GB 2305156 A GB2305156 A GB 2305156A GB 2305156 A GB2305156 A GB 2305156A GB 823407 A GB823407 A GB 823407A
Authority
GB
United Kingdom
Prior art keywords
production
metal powders
relating
exceeding
powders
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
GB2305156A
Inventor
Robert Wehner
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.)
HARTMETLLWERK IMMELBORN VEB
Original Assignee
HARTMETLLWERK IMMELBORN VEB
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 HARTMETLLWERK IMMELBORN VEB filed Critical HARTMETLLWERK IMMELBORN VEB
Priority to GB2305156A priority Critical patent/GB823407A/en
Publication of GB823407A publication Critical patent/GB823407A/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
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors

Abstract

Metal powders with a grain size of less than 1m are produced by slowly oxidizing the metal powder to oxide at a temperature not exceeding 500 DEG C., and then slowly reducing the oxidation product at a temperature not exceeding 830 DEG C. in a reducing gas such as hydrogen. The oxidation-reduction may be repeated to produce a grain size less than 0.3m . The process is applicable to the production of powders of tungsten, molybdenum, cobalt, nickel and iron.
GB2305156A 1956-07-25 1956-07-25 Improvements in or relating to the production of metal powders Expired GB823407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2305156A GB823407A (en) 1956-07-25 1956-07-25 Improvements in or relating to the production of metal powders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2305156A GB823407A (en) 1956-07-25 1956-07-25 Improvements in or relating to the production of metal powders

Publications (1)

Publication Number Publication Date
GB823407A true GB823407A (en) 1959-11-11

Family

ID=10189318

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2305156A Expired GB823407A (en) 1956-07-25 1956-07-25 Improvements in or relating to the production of metal powders

Country Status (1)

Country Link
GB (1) GB823407A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684400A (en) * 1986-02-20 1987-08-04 Gte Products Corporation Method for controlling the oxygen content in agglomerated molybdenum powders
EP0233574A2 (en) * 1986-02-12 1987-08-26 GTE Products Corporation Method for controlling the oxygen content in agglomerated molybdenum powder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233574A2 (en) * 1986-02-12 1987-08-26 GTE Products Corporation Method for controlling the oxygen content in agglomerated molybdenum powder
EP0233574A3 (en) * 1986-02-12 1989-07-26 Gte Products Corporation Method for controlling the oxygen content in agglomerated molybdenum powder
US4684400A (en) * 1986-02-20 1987-08-04 Gte Products Corporation Method for controlling the oxygen content in agglomerated molybdenum powders

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