GB202664A - Improvements in or relating to the manufacture of iron-chromium alloys - Google Patents

Improvements in or relating to the manufacture of iron-chromium alloys

Info

Publication number
GB202664A
GB202664A GB538522A GB538522A GB202664A GB 202664 A GB202664 A GB 202664A GB 538522 A GB538522 A GB 538522A GB 538522 A GB538522 A GB 538522A GB 202664 A GB202664 A GB 202664A
Authority
GB
United Kingdom
Prior art keywords
iron
chromium
silicon
alloy
ferro
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
GB538522A
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.)
WILLIAM ROBERT SALTRICK
Original Assignee
WILLIAM ROBERT SALTRICK
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 WILLIAM ROBERT SALTRICK filed Critical WILLIAM ROBERT SALTRICK
Priority to GB538522A priority Critical patent/GB202664A/en
Publication of GB202664A publication Critical patent/GB202664A/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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00

Landscapes

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

Abstract

202,664. Saltrick, W. R. Feb. 23, 1922. Alloys.-Iron-chromium alloys of the stainless or rustless type are made by reducing in a furnace a charge comprising an ore or compound of a constituent metal and a silicon-containing reducing agent, and adding the resulting metal to a bath of molten iron or iron alloy in the furnace. Fluxes such was lime and fluorspar may be used. The reducing-agent may be ferro-silicon, calciumsilicon or other silicon alloy, and may be mixed with some aluminium, ferro-calcium, calciumsilicon-aluminium, or other stronger reducing- agent. The reaction-mixture may be briquetted. Some ferro-chrome or other chromium alloy may be added to the molten bath, or may form part of the briquetted reaction-mixture; for example, the briquettes may contain chromite, ferro-silicon and an iron-chromium-silicon alloy. Instead of using chromite, chromium-silicon alloy may be used with iron oxide and chromium oxide or sodium or calcium chromate. In some cases, nickel may be added to the bath or as part of the briquettes; or nickel oxide may be present in the mixture. The process may be carried out in electric or other suitable furnaces, or in one or more converters. The alloy may be finally refined bv a blowing operation, for example that described in Specification 197,987, or by means of solid reagents such as ores or compounds of iron or chromium.
GB538522A 1922-02-23 1922-02-23 Improvements in or relating to the manufacture of iron-chromium alloys Expired GB202664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB538522A GB202664A (en) 1922-02-23 1922-02-23 Improvements in or relating to the manufacture of iron-chromium alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB538522A GB202664A (en) 1922-02-23 1922-02-23 Improvements in or relating to the manufacture of iron-chromium alloys

Publications (1)

Publication Number Publication Date
GB202664A true GB202664A (en) 1923-08-23

Family

ID=9795142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB538522A Expired GB202664A (en) 1922-02-23 1922-02-23 Improvements in or relating to the manufacture of iron-chromium alloys

Country Status (1)

Country Link
GB (1) GB202664A (en)

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