GB1080392A - Improvements in or relating to the production of stainless steels - Google Patents

Improvements in or relating to the production of stainless steels

Info

Publication number
GB1080392A
GB1080392A GB2729666A GB2729666A GB1080392A GB 1080392 A GB1080392 A GB 1080392A GB 2729666 A GB2729666 A GB 2729666A GB 2729666 A GB2729666 A GB 2729666A GB 1080392 A GB1080392 A GB 1080392A
Authority
GB
United Kingdom
Prior art keywords
slag
vessel
chromium
relating
production
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
GB2729666A
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.)
Jones and Laughlin Steel Corp
Original Assignee
Jones and Laughlin Steel Corp
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 Jones and Laughlin Steel Corp filed Critical Jones and Laughlin Steel Corp
Publication of GB1080392A publication Critical patent/GB1080392A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/005—Manufacture of stainless steel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Fertilizing (AREA)

Abstract

A process for producing stainless steel (i.e. an iron base alloy containing at least 4% Cr) comprises forming a bath of steel containing carbon and chromium in a first vessel, oxidatively refining the melt to form a slag containing chromium oxides, pouring the slag into a second vessel where it is treated with a reducing agent and returning the metal rich in chromium and the spent slag to the first vessel. The refining may be accomplished by oxygen blown vertically downwards through the slag on to the surface of the melt, and the reducing agent may be Fe-Si of Fe-Cr-Si.
GB2729666A 1965-06-18 1966-06-17 Improvements in or relating to the production of stainless steels Expired GB1080392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46490065A 1965-06-18 1965-06-18

Publications (1)

Publication Number Publication Date
GB1080392A true GB1080392A (en) 1967-08-23

Family

ID=23845709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2729666A Expired GB1080392A (en) 1965-06-18 1966-06-17 Improvements in or relating to the production of stainless steels

Country Status (8)

Country Link
BE (1) BE682719A (en)
DE (1) DE1508200B2 (en)
ES (1) ES328048A1 (en)
GB (1) GB1080392A (en)
LU (1) LU51355A1 (en)
NL (1) NL6608473A (en)
NO (1) NO119874B (en)
SE (1) SE301388B (en)

Also Published As

Publication number Publication date
DE1508200B2 (en) 1975-10-09
LU51355A1 (en) 1968-03-08
DE1508200A1 (en) 1969-10-09
NL6608473A (en) 1966-12-19
ES328048A1 (en) 1967-08-01
NO119874B (en) 1970-07-20
SE301388B (en) 1968-06-04
BE682719A (en) 1966-12-19

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