FR2371512A1 - Steel prodn. in an electric furnace - with addn. of magnesia to prevent erosion of the refractory brick lining and ladle covering - Google Patents

Steel prodn. in an electric furnace - with addn. of magnesia to prevent erosion of the refractory brick lining and ladle covering

Info

Publication number
FR2371512A1
FR2371512A1 FR7726144A FR7726144A FR2371512A1 FR 2371512 A1 FR2371512 A1 FR 2371512A1 FR 7726144 A FR7726144 A FR 7726144A FR 7726144 A FR7726144 A FR 7726144A FR 2371512 A1 FR2371512 A1 FR 2371512A1
Authority
FR
France
Prior art keywords
addn
electric furnace
refractory brick
steel
magnesia
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.)
Granted
Application number
FR7726144A
Other languages
French (fr)
Other versions
FR2371512B3 (en
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.)
Kyoei Steel Ltd
Original Assignee
Kyoei Steel 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 Kyoei Steel Ltd filed Critical Kyoei Steel Ltd
Publication of FR2371512A1 publication Critical patent/FR2371512A1/en
Application granted granted Critical
Publication of FR2371512B3 publication Critical patent/FR2371512B3/fr
Granted 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1678—Increasing the durability of linings; Means for protecting
    • F27D1/1684—Increasing the durability of linings; Means for protecting by a special coating applied to the lining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1678—Increasing the durability of linings; Means for protecting
    • F27D1/1684—Increasing the durability of linings; Means for protecting by a special coating applied to the lining
    • F27D2001/1689—Increasing the durability of linings; Means for protecting by a special coating applied to the lining obtained from materials added to the melt
    • 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)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

Steel prodn. in an electric furnace takes place with the addn. of MgO, or of a material contg. MgO as its main constituent, together with the main charge materials. Addn. of MgO causes formation of a basic slag and reduces the wear and erosion of the refractory brick lining of the melt furnace and of the ladle lining. Frequent work interruptions for repair are obviated and steel prodn. costs are reduced without changing steel components.
FR7726144A 1976-11-17 1977-08-26 Steel prodn. in an electric furnace - with addn. of magnesia to prevent erosion of the refractory brick lining and ladle covering Granted FR2371512A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13868376A JPS5362707A (en) 1976-11-17 1976-11-17 Electric furnace steel making method

Publications (2)

Publication Number Publication Date
FR2371512A1 true FR2371512A1 (en) 1978-06-16
FR2371512B3 FR2371512B3 (en) 1980-05-16

Family

ID=15227655

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726144A Granted FR2371512A1 (en) 1976-11-17 1977-08-26 Steel prodn. in an electric furnace - with addn. of magnesia to prevent erosion of the refractory brick lining and ladle covering

Country Status (3)

Country Link
JP (1) JPS5362707A (en)
DE (1) DE2736364A1 (en)
FR (1) FR2371512A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011779A1 (en) * 1978-12-02 1980-06-11 Preussag Stahl Aktiengesellschaft Process for increasing the life of basic converter linings in the course of the refining of pig iron to steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011779A1 (en) * 1978-12-02 1980-06-11 Preussag Stahl Aktiengesellschaft Process for increasing the life of basic converter linings in the course of the refining of pig iron to steel

Also Published As

Publication number Publication date
JPS5362707A (en) 1978-06-05
DE2736364A1 (en) 1978-05-18
FR2371512B3 (en) 1980-05-16

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