GB922955A - Prcoess for the manufacture of pulverized iron - Google Patents

Prcoess for the manufacture of pulverized iron

Info

Publication number
GB922955A
GB922955A GB2412759A GB2412759A GB922955A GB 922955 A GB922955 A GB 922955A GB 2412759 A GB2412759 A GB 2412759A GB 2412759 A GB2412759 A GB 2412759A GB 922955 A GB922955 A GB 922955A
Authority
GB
United Kingdom
Prior art keywords
pulverized
prcoess
manufacture
scrap
nitrided
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
GB2412759A
Inventor
Kanzo Yamazaki
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.)
Hokuriku Kako KK
Original Assignee
Hokuriku Kako KK
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 Hokuriku Kako KK filed Critical Hokuriku Kako KK
Priority to GB2412759A priority Critical patent/GB922955A/en
Publication of GB922955A publication Critical patent/GB922955A/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

Abstract

A process of manufacturing high purity pulverized iron comprises nitriding thin iron scrap at high temperature in ammonia gas, pulverizing the nitrided steel to a desired particle size, and denitriding the pulverized material. Scrap of 0.5 mm. thickness may be nitrided at 750 DEG C. in an atmosphere of ammonia, cooled and pulverized to pass 100 mesh and heated to above 700 DEG C. in an oxygen-free atmosphere, e.g. waste gas from the nitriding process. The powdered product is stated to contain 99.5% Fe.
GB2412759A 1959-07-14 1959-07-14 Prcoess for the manufacture of pulverized iron Expired GB922955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2412759A GB922955A (en) 1959-07-14 1959-07-14 Prcoess for the manufacture of pulverized iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2412759A GB922955A (en) 1959-07-14 1959-07-14 Prcoess for the manufacture of pulverized iron

Publications (1)

Publication Number Publication Date
GB922955A true GB922955A (en) 1963-04-03

Family

ID=10206822

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2412759A Expired GB922955A (en) 1959-07-14 1959-07-14 Prcoess for the manufacture of pulverized iron

Country Status (1)

Country Link
GB (1) GB922955A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000358B (en) * 1977-05-11 1982-01-27 Atomic Energy Authority Uk Recovery of nuclear fuel material
WO2004033134A1 (en) * 2002-10-11 2004-04-22 Institutet För Metallforskning Ab Process and plant for manufacturing fine iron and steel powders, fine iron and steel powders and use of powders manufactured by the process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000358B (en) * 1977-05-11 1982-01-27 Atomic Energy Authority Uk Recovery of nuclear fuel material
WO2004033134A1 (en) * 2002-10-11 2004-04-22 Institutet För Metallforskning Ab Process and plant for manufacturing fine iron and steel powders, fine iron and steel powders and use of powders manufactured by the process

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