JPS5619969A - Refractory base porous nozzle device - Google Patents

Refractory base porous nozzle device

Info

Publication number
JPS5619969A
JPS5619969A JP9466979A JP9466979A JPS5619969A JP S5619969 A JPS5619969 A JP S5619969A JP 9466979 A JP9466979 A JP 9466979A JP 9466979 A JP9466979 A JP 9466979A JP S5619969 A JPS5619969 A JP S5619969A
Authority
JP
Japan
Prior art keywords
molten metal
flow
inert gas
jet flow
wind
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
JP9466979A
Other languages
Japanese (ja)
Inventor
Masaaki Tawara
Kenzo Kitano
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.)
Daido Sanso Co Ltd
Original Assignee
Daido Sanso 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 Daido Sanso Co Ltd filed Critical Daido Sanso Co Ltd
Priority to JP9466979A priority Critical patent/JPS5619969A/en
Publication of JPS5619969A publication Critical patent/JPS5619969A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/106—Shielding the molten jet

Abstract

PURPOSE:To form a firm inert gas curtain for wind by coating the top and under surfaces of porous nozzle bodies by sealing material, spouting an inert gas in the form of counter jet flow and specifying the ratio of the nozzle body inside diameter and thickness. CONSTITUTION:Porous nozzle bodies 5 are disposed roughly at a right angle on a pouring pipe 3 on the same concentrical circle as that of the pouring flow 1 in which the molten metal 7 in, for example, a ladle 4, flows down into the pouring pipe 3. The top and under surfaces of the nozzle bodies 5 are perfectly covered with sealing material 8 and an inert gas is spouted in the form of counter jet flow only from the spouting parts 11. In addition, the nozzle body thickness T/nozzle body inside diameter D is made 0.05-0.30. As a result, the jet flow 10 of the inert gas having been straightened by the nozzle bodies 5 is divided to the upper direction and lower direction of the molten metal flow 1. Within the pouring pipe 3 below, a gas layer perfectly shielding the molten metal from the atmospheric air is formed and in the surface of the molten metal flow 1 above, the gas directly contacts the same thereby forming a jet flow layer enclosing the molten metal flow. Thus the entry of the atmospheric air owing to wind is prevented even at velocities of wind of about 1- 2m/sec.
JP9466979A 1979-07-24 1979-07-24 Refractory base porous nozzle device Pending JPS5619969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9466979A JPS5619969A (en) 1979-07-24 1979-07-24 Refractory base porous nozzle device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9466979A JPS5619969A (en) 1979-07-24 1979-07-24 Refractory base porous nozzle device

Publications (1)

Publication Number Publication Date
JPS5619969A true JPS5619969A (en) 1981-02-25

Family

ID=14116639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9466979A Pending JPS5619969A (en) 1979-07-24 1979-07-24 Refractory base porous nozzle device

Country Status (1)

Country Link
JP (1) JPS5619969A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011131238A (en) * 2009-12-24 2011-07-07 Tokyo Yogyo Co Ltd Long nozzle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49119828A (en) * 1973-03-05 1974-11-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49119828A (en) * 1973-03-05 1974-11-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011131238A (en) * 2009-12-24 2011-07-07 Tokyo Yogyo Co Ltd Long nozzle

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