JPS5586677A - Nozzle closure preventive method - Google Patents

Nozzle closure preventive method

Info

Publication number
JPS5586677A
JPS5586677A JP15761578A JP15761578A JPS5586677A JP S5586677 A JPS5586677 A JP S5586677A JP 15761578 A JP15761578 A JP 15761578A JP 15761578 A JP15761578 A JP 15761578A JP S5586677 A JPS5586677 A JP S5586677A
Authority
JP
Japan
Prior art keywords
nozzle
heating
brick
tuyere
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.)
Pending
Application number
JP15761578A
Other languages
Japanese (ja)
Inventor
Yoshito Edamoto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15761578A priority Critical patent/JPS5586677A/en
Publication of JPS5586677A publication Critical patent/JPS5586677A/en
Pending legal-status Critical Current

Links

Landscapes

  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

PURPOSE: To prevent closure of nozzle by solidification of molten metal at the time of pouring, by filling the sliding nozzle and rotary nozzle of ladle and tundish with granular refractories, and heating and insulating with thermit heating material.
CONSTITUTION: A sliding nozzle is provided in the bottom of a ladle or tundish. The nozzle forms the upper nozzle part with upper nozzle brick 5 provided in wide bottom taper part 4 of a tuyere 3 of tuyere brick 2 and a securing plate 6. The lower nozzle part slides in contact with the securing plate 6, and is constituted with a sliding plate 7 having an opening in part and a lower nozzle brick 9. The hole in the upper nozzle brick 5 is filled with granular refractories 11, and a heating insulating material 10 coated with a heat insulating material of bulk specific gravity <3 on the both sides and upper face of a plate 21 of thermit heating material of which heating capacity is 2W20MJ/kg is placed on the tuyere 3. This heating insulating material 10 is ignited to generate heat. Using this heat, the opening part of the tuyere brick 2 and the refractory filling 11 are heated to high temperature and insulated. Then, pouring molten metal, closure of the nozzle part by cooling and solidification of the molten metal in the nozzle part may be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP15761578A 1978-12-22 1978-12-22 Nozzle closure preventive method Pending JPS5586677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15761578A JPS5586677A (en) 1978-12-22 1978-12-22 Nozzle closure preventive method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15761578A JPS5586677A (en) 1978-12-22 1978-12-22 Nozzle closure preventive method

Publications (1)

Publication Number Publication Date
JPS5586677A true JPS5586677A (en) 1980-06-30

Family

ID=15653592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15761578A Pending JPS5586677A (en) 1978-12-22 1978-12-22 Nozzle closure preventive method

Country Status (1)

Country Link
JP (1) JPS5586677A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101235612B1 (en) 2011-02-24 2013-02-21 현대제철 주식회사 Structure of refractories in discharging part of molten steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101235612B1 (en) 2011-02-24 2013-02-21 현대제철 주식회사 Structure of refractories in discharging part of molten steel

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