GB1282161A - A method of making a high nitrogen steel - Google Patents

A method of making a high nitrogen steel

Info

Publication number
GB1282161A
GB1282161A GB3369969A GB3369969A GB1282161A GB 1282161 A GB1282161 A GB 1282161A GB 3369969 A GB3369969 A GB 3369969A GB 3369969 A GB3369969 A GB 3369969A GB 1282161 A GB1282161 A GB 1282161A
Authority
GB
United Kingdom
Prior art keywords
steel
making
high nitrogen
nitrogen steel
july
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
GB3369969A
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1282161A publication Critical patent/GB1282161A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

1282161 Adding nitrogen to steel NIPPON KOKAN K K 3 July 1969 [4 July 1968] 33699/69 Heading C7D High nitrogen steel is made by injecting nitrogen gas through a porous refractory brick in the bottom of a vessel containing the liquid steel for at least 2 minutes at a rate of 0À02-0À1 Nm<SP>3</SP> /ton of steel.
GB3369969A 1968-07-04 1969-07-03 A method of making a high nitrogen steel Expired GB1282161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4614868 1968-07-04

Publications (1)

Publication Number Publication Date
GB1282161A true GB1282161A (en) 1972-07-19

Family

ID=12738873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3369969A Expired GB1282161A (en) 1968-07-04 1969-07-03 A method of making a high nitrogen steel

Country Status (3)

Country Link
DE (1) DE1934101A1 (en)
FR (1) FR2012305B1 (en)
GB (1) GB1282161A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU30391A1 (en) * 1949-11-03
AT274877B (en) * 1964-05-12 1969-10-10 Boehler & Co Ag Geb Process for the production of high nitrogen alloy steel

Also Published As

Publication number Publication date
DE1934101A1 (en) 1971-01-28
FR2012305A1 (en) 1970-03-20
FR2012305B1 (en) 1973-10-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees