GB985600A - Process for the manufacture of unalloyed and alloyed steels having the low content of phosphorus and sulphur customary in special steels - Google Patents

Process for the manufacture of unalloyed and alloyed steels having the low content of phosphorus and sulphur customary in special steels

Info

Publication number
GB985600A
GB985600A GB1980463A GB1980463A GB985600A GB 985600 A GB985600 A GB 985600A GB 1980463 A GB1980463 A GB 1980463A GB 1980463 A GB1980463 A GB 1980463A GB 985600 A GB985600 A GB 985600A
Authority
GB
United Kingdom
Prior art keywords
iron
slag
steels
content
phosphorus
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
GB1980463A
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.)
Beteiligungs und Patentverwaltungs GmbH
Original Assignee
Beteiligungs und Patentverwaltungs GmbH
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 Beteiligungs und Patentverwaltungs GmbH filed Critical Beteiligungs und Patentverwaltungs GmbH
Publication of GB985600A publication Critical patent/GB985600A/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
    • C21C5/56—Manufacture of steel by other methods
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Iron of high phosphorus content is prerefined by treatment with the iron-rich slag resulting from the first stage of blowing, e.g. by pouring into the slag contained in a ladle, whereby the iron content of the slag is reduced to below 15%. The iron is then transferred to a converter containing the slag of iron content greater than 15% from the second stage of blowing, where it is blown with oxygen, slag formers being added, until the phosphorus content is below 0.15%, the carbon content being greater than 1.3%. The slag is then removed, for use in the pre-refining stage, a new slag rich in iron formed, and the bath again blown until the desired carbon content is obtained. Ore scrap, iron nodules or sponge, or appropriate iron alloys may be used as coolants.
GB1980463A 1962-05-18 1963-05-17 Process for the manufacture of unalloyed and alloyed steels having the low content of phosphorus and sulphur customary in special steels Expired GB985600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0067295 1962-05-18

Publications (1)

Publication Number Publication Date
GB985600A true GB985600A (en) 1965-03-10

Family

ID=6975471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1980463A Expired GB985600A (en) 1962-05-18 1963-05-17 Process for the manufacture of unalloyed and alloyed steels having the low content of phosphorus and sulphur customary in special steels

Country Status (3)

Country Link
DE (1) DE1433416A1 (en)
GB (1) GB985600A (en)
LU (1) LU43765A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295882A (en) * 1978-10-24 1981-10-20 Nippon Steel Corporation Steel making process
JPS58207314A (en) * 1982-05-28 1983-12-02 Sumitomo Metal Ind Ltd Refining method of steel
FR2558482B1 (en) * 1984-01-25 1989-10-27 Siderurgie Fse Inst Rech PROCESS FOR THE PREPARATION OF STEEL BY CAST IRON

Also Published As

Publication number Publication date
DE1433416A1 (en) 1968-11-21
LU43765A1 (en) 1963-07-17

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