JPS5741309A - Refining vessel having gas blowing tuyere - Google Patents

Refining vessel having gas blowing tuyere

Info

Publication number
JPS5741309A
JPS5741309A JP55118062A JP11806280A JPS5741309A JP S5741309 A JPS5741309 A JP S5741309A JP 55118062 A JP55118062 A JP 55118062A JP 11806280 A JP11806280 A JP 11806280A JP S5741309 A JPS5741309 A JP S5741309A
Authority
JP
Japan
Prior art keywords
mgo
bricks
mixture
refining vessel
gas blowing
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
JP55118062A
Other languages
Japanese (ja)
Other versions
JPS609563B2 (en
Inventor
Kiyohiro Hosokawa
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.)
Harima Refractories Co Ltd
Original Assignee
Harima Refractories Co 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 Harima Refractories Co Ltd filed Critical Harima Refractories Co Ltd
Priority to JP55118062A priority Critical patent/JPS609563B2/en
Publication of JPS5741309A publication Critical patent/JPS5741309A/en
Publication of JPS609563B2 publication Critical patent/JPS609563B2/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
    • C21C5/42—Constructional features of converters
    • C21C5/44—Refractory linings

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE:To provide a titled refining vessel of considerably improved corrosion resistance of lining bricks by using the MgO-C bricks made by adding an org. binder to a mixture of prescribed ratios of MgO and C and molding the mixture then calcining the molding in a specific temp. range for the circumference of a gas blowing tuyere. CONSTITUTION:An MgO raw material such as sintered MgO of >=95% content of MgO and a C raw material such as flake graphite of >=80% content of C are mixed at ratios of 90-70% MgO and 10-30% C. Next, an org. binder such as phenolic resin is added and mixed to this mixture, and the mixture is kneaded and molded, after which the molding is calcined in a 900-1,450 deg.C temp. range in an atmosphere of not oxidizing C, until the binder is carbonized. Thence, the resultant MgO-C bricks are used around the gas blowing tuyere of a refining vessel. As a result, unlike with conventional uncalcined MgO-C bricks, the occurrence of creep deformation is obviated, and the joint erosion between lining bricks is less; hence, the effect of considerably improving the corrosion resistance of the lining bricks, considerably extending the continuous operation period of the refining vessel, etc. is obtained.
JP55118062A 1980-08-27 1980-08-27 Refining vessel with gas blowing tuyere Expired JPS609563B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55118062A JPS609563B2 (en) 1980-08-27 1980-08-27 Refining vessel with gas blowing tuyere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55118062A JPS609563B2 (en) 1980-08-27 1980-08-27 Refining vessel with gas blowing tuyere

Publications (2)

Publication Number Publication Date
JPS5741309A true JPS5741309A (en) 1982-03-08
JPS609563B2 JPS609563B2 (en) 1985-03-11

Family

ID=14727062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55118062A Expired JPS609563B2 (en) 1980-08-27 1980-08-27 Refining vessel with gas blowing tuyere

Country Status (1)

Country Link
JP (1) JPS609563B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040049585A (en) * 2002-12-06 2004-06-12 주식회사 포스렉 A unburned Magnesia-Carbon brick having excellent thermal shock resistance
JP2017144460A (en) * 2016-02-17 2017-08-24 Ｊｆｅスチール株式会社 Method of manufacturing refractory for gas blowing nozzle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040049585A (en) * 2002-12-06 2004-06-12 주식회사 포스렉 A unburned Magnesia-Carbon brick having excellent thermal shock resistance
JP2017144460A (en) * 2016-02-17 2017-08-24 Ｊｆｅスチール株式会社 Method of manufacturing refractory for gas blowing nozzle

Also Published As

Publication number Publication date
JPS609563B2 (en) 1985-03-11

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