JPS5757845A - Protecting method for gas spouting surface of porous plug and protecting material - Google Patents

Protecting method for gas spouting surface of porous plug and protecting material

Info

Publication number
JPS5757845A
JPS5757845A JP55132973A JP13297380A JPS5757845A JP S5757845 A JPS5757845 A JP S5757845A JP 55132973 A JP55132973 A JP 55132973A JP 13297380 A JP13297380 A JP 13297380A JP S5757845 A JPS5757845 A JP S5757845A
Authority
JP
Japan
Prior art keywords
porous plug
molten steel
plug
protecting
molten metal
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
JP55132973A
Other languages
Japanese (ja)
Other versions
JPS6014811B2 (en
Inventor
Seiichi Nomi
Shinsaku Hayashi
Minoru Yamada
Yoshinori Ito
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.)
Kurosaki Refractories Co Ltd
Nippon Steel Corp
Original Assignee
Kurosaki Refractories Co Ltd
Nippon 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 Kurosaki Refractories Co Ltd, Nippon Steel Corp filed Critical Kurosaki Refractories Co Ltd
Priority to JP55132973A priority Critical patent/JPS6014811B2/en
Publication of JPS5757845A publication Critical patent/JPS5757845A/en
Publication of JPS6014811B2 publication Critical patent/JPS6014811B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Compositions Of Oxide Ceramics (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: To prevent a porous plug attached to a ladle or the like from being damaged by molten metal and to elongate the usage life by mounting refractory granules on the surface of the plug and charging molten metal.
CONSTITUTION: Gaseous Ar, N2 or the like is blown into molten steel in a container holing molten metal such as a ladle or a tundish to carry out desulfurization, deoxidation, dephosphorization, desiliconization and separation of nonmetallic inclusions. At this time, a porous plug for blowing said gas into molten steel is damaged and requires frequent exchanges. In order to reduce the exchanges, granules obtd. by mixing 100pts.wt. of ≥1 kinds of refractory such as magnesia, spinel, alumina or mullite with 3W7pts.wt. solid pitch and granulating the mixture to 2W 0.2mm size are mounted on the surface of the porous plug of a container after discharging molten steel, and molten steel is charged to prevent the damage of the plug.
COPYRIGHT: (C)1982,JPO&Japio
JP55132973A 1980-09-26 1980-09-26 Method of protecting gas blowing surface of porous plug and its protective material Expired JPS6014811B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55132973A JPS6014811B2 (en) 1980-09-26 1980-09-26 Method of protecting gas blowing surface of porous plug and its protective material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55132973A JPS6014811B2 (en) 1980-09-26 1980-09-26 Method of protecting gas blowing surface of porous plug and its protective material

Publications (2)

Publication Number Publication Date
JPS5757845A true JPS5757845A (en) 1982-04-07
JPS6014811B2 JPS6014811B2 (en) 1985-04-16

Family

ID=15093813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55132973A Expired JPS6014811B2 (en) 1980-09-26 1980-09-26 Method of protecting gas blowing surface of porous plug and its protective material

Country Status (1)

Country Link
JP (1) JPS6014811B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01101901U (en) * 1987-12-26 1989-07-10

Also Published As

Publication number Publication date
JPS6014811B2 (en) 1985-04-16

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