JPS5554519A - Lance pipe and molten metal blowing method - Google Patents

Lance pipe and molten metal blowing method

Info

Publication number
JPS5554519A
JPS5554519A JP12516378A JP12516378A JPS5554519A JP S5554519 A JPS5554519 A JP S5554519A JP 12516378 A JP12516378 A JP 12516378A JP 12516378 A JP12516378 A JP 12516378A JP S5554519 A JPS5554519 A JP S5554519A
Authority
JP
Japan
Prior art keywords
pipe
layer
molten metal
fire resistant
lance pipe
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
JP12516378A
Other languages
Japanese (ja)
Other versions
JPS6112969B2 (en
Inventor
Yoshihiro Hayashi
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.)
AIKOO KK
Aikoh Co Ltd
Original Assignee
AIKOO KK
Aikoh 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 AIKOO KK, Aikoh Co Ltd filed Critical AIKOO KK
Priority to JP12516378A priority Critical patent/JPS5554519A/en
Priority to SE7906404A priority patent/SE7906404L/en
Priority to CA332,624A priority patent/CA1130560A/en
Priority to US06/063,121 priority patent/US4296921A/en
Priority to BR7905182A priority patent/BR7905182A/en
Priority to DE2933143A priority patent/DE2933143C2/en
Priority to AT0560879A priority patent/AT369789B/en
Priority to AU50122/79A priority patent/AU515871B2/en
Priority to ES483563A priority patent/ES483563A1/en
Priority to GB7929405A priority patent/GB2028987B/en
Priority to IT09518/79A priority patent/IT1203270B/en
Priority to LU81627A priority patent/LU81627A1/en
Priority to NL7906470A priority patent/NL7906470A/en
Priority to FR7921526A priority patent/FR2434868A1/en
Publication of JPS5554519A publication Critical patent/JPS5554519A/en
Publication of JPS6112969B2 publication Critical patent/JPS6112969B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Laminated Bodies (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: To provide thermal impact resistance, slag fusion loss resistance, etc. to a molten metal blowing lance pipe by winding fire resistant fiber impregnated with magnesia, alumina or the like and silica round the pipe outside and by further attaching a similar refractory.
CONSTITUTION: A 0.5W15mm thick fire resistant fibrous substance is impregnated with an aq. silica sol contg. 40W90% of aggregate of magnesia, alumina or the like with a grain size of ≤10 mesh (contg. 15wt% or mre of ≤200 and 28W200 mesh) and 5W40% of solid matter as silica. This sol-impregnated substance is wound round a lance pipe to form the first layer. A refractory similar to the first layer is then attached to the layer to 0.2W3mm thickness as the second layer and dried by heating to form a 2W15mm thick fire resistant coating. Using the coated lance pipe a mixt. of oxygen, nitrogen, argon or other gas and a solid refining agent is blown into molten metal. Since this pipe is light-weight and is consumed at low speed, pipe exchange or addn. is made unnecessary in blowing, resulting in stable operation.
COPYRIGHT: (C)1980,JPO&Japio
JP12516378A 1978-08-28 1978-10-13 Lance pipe and molten metal blowing method Granted JPS5554519A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
JP12516378A JPS5554519A (en) 1978-10-13 1978-10-13 Lance pipe and molten metal blowing method
SE7906404A SE7906404L (en) 1978-08-28 1979-07-26 lance
CA332,624A CA1130560A (en) 1978-08-28 1979-07-26 Lance pipe for refining and refining process of molten metal
US06/063,121 US4296921A (en) 1978-08-28 1979-08-02 Lance pipe for refining and method of making the same
BR7905182A BR7905182A (en) 1978-08-28 1979-08-13 PROCESS TO MAKE A REFRACTORY COATED IMMERSION TUBE, IMMERSION TUBE AND BLOWING METAL BLOWING PROCESS
DE2933143A DE2933143C2 (en) 1978-08-28 1979-08-16 Lance tube for blowing fresh agent into molten metal
AT0560879A AT369789B (en) 1978-08-28 1979-08-20 LANCE TUBE FOR REFINING MOLTED METALS AND METHOD FOR PRODUCING A LANCE TUBE
AU50122/79A AU515871B2 (en) 1978-08-28 1979-08-21 Lance pipe for blowing gases and refining agents into molten metals
ES483563A ES483563A1 (en) 1978-08-28 1979-08-22 Lance pipe for refining and method of making the same
GB7929405A GB2028987B (en) 1978-08-28 1979-08-23 Lance pipe for refining metal and refining method using the lance pipe
IT09518/79A IT1203270B (en) 1978-08-28 1979-08-27 DEVICE TO BLOW LIQUID METAL GASES FOR REFINING
LU81627A LU81627A1 (en) 1978-08-28 1979-08-27 LAUNCH AND PROCESS FOR REFINING A FUSION METAL
NL7906470A NL7906470A (en) 1978-08-28 1979-08-28 LANCE PIPE FOR REFINING AND REFINING METHOD OF MELTED METAL.
FR7921526A FR2434868A1 (en) 1978-08-28 1979-08-28 LANCE PIPE FOR METAL REFINING, AND REFINING METHOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12516378A JPS5554519A (en) 1978-10-13 1978-10-13 Lance pipe and molten metal blowing method

Publications (2)

Publication Number Publication Date
JPS5554519A true JPS5554519A (en) 1980-04-21
JPS6112969B2 JPS6112969B2 (en) 1986-04-11

Family

ID=14903429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12516378A Granted JPS5554519A (en) 1978-08-28 1978-10-13 Lance pipe and molten metal blowing method

Country Status (1)

Country Link
JP (1) JPS5554519A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068066A (en) * 1982-10-15 1985-04-18 アイエフエム　デベロツプメント　アクチ−ボラグ Nozzle for injection lance
JP2018150620A (en) * 2017-03-13 2018-09-27 Ｊｆｅスチール株式会社 Method for using monolithic refractory, method for operating molten steel treatment equipment, desulfurization method for molten steel, and pretreatment method for molten steel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068066A (en) * 1982-10-15 1985-04-18 アイエフエム　デベロツプメント　アクチ−ボラグ Nozzle for injection lance
JP2018150620A (en) * 2017-03-13 2018-09-27 Ｊｆｅスチール株式会社 Method for using monolithic refractory, method for operating molten steel treatment equipment, desulfurization method for molten steel, and pretreatment method for molten steel

Also Published As

Publication number Publication date
JPS6112969B2 (en) 1986-04-11

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