KR940013674A - Injection nozzle of molten steel and flow control method using the same - Google Patents

Injection nozzle of molten steel and flow control method using the same Download PDF

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Publication number
KR940013674A
KR940013674A KR1019920026523A KR920026523A KR940013674A KR 940013674 A KR940013674 A KR 940013674A KR 1019920026523 A KR1019920026523 A KR 1019920026523A KR 920026523 A KR920026523 A KR 920026523A KR 940013674 A KR940013674 A KR 940013674A
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South Korea
Prior art keywords
nozzle
molten steel
mold
long side
control method
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KR1019920026523A
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Korean (ko)
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KR950007172B1 (en
Inventor
신건
김선구
김종완
서보성
이인렬
Original Assignee
박득표
포항종합제철 주식회사
백덕현
재단법인 산업과학기술연구소
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Priority to KR1019920026523A priority Critical patent/KR950007172B1/en
Publication of KR940013674A publication Critical patent/KR940013674A/en
Application granted granted Critical
Publication of KR950007172B1 publication Critical patent/KR950007172B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

본 발명은 연속주조사 턴디쉬(Tundish)에서 주형으로 용강을 유입시키는 노즐(Nozzle)에 관한 것으로, 보다 상세히는 용강이 유입되는 동안 주형내에서 발생되는 용강의 편류현상을 방지하여 주편의 품질을 향상시키고, 주편터짐 (break-out) 등의 설비사고를 예방하도록된 주입노즐과 이를 이용한 유량 제어방법에 관한 것이다.The present invention relates to a nozzle for injecting molten steel into a mold in a continuous casting tundish, and more particularly, to prevent drift of molten steel generated in a mold during inflow of molten steel. The present invention relates to an injection nozzle designed to improve and prevent equipment accidents such as break-out and a flow control method using the same.

본 발명은, 슬라이딩 게이트노즐과 침지노즐의 내부구멍을 타원형으로 형성하고, 침지노즐의 단변외경은 주형폭의 절반 이하로 형성하며, 장변내경은 단변내경의 1.5배 내지 2배로 형성된 용강의 주입노즐을 제공한다.According to the present invention, an inner hole of the sliding gate nozzle and the immersion nozzle is formed in an oval shape, and the short side outer diameter of the immersion nozzle is formed to be less than half the mold width, and the long side inner diameter is 1.5 to 2 times the short side inner diameter. To provide.

또한 본 발명은 타원형의 내부구멍을 갖춘 슬라이딩 게이트노즐과 침지노즐의 장변방향이 주형의 장변방향과 나란하게 설치된 상태에서, 슬라이딩 게이트 노즐의 이동방향이 주형의 장변방향에 대하여 수직한 방향으로 이동시키는 용강의 유량제어방법을 제공한다.In addition, the present invention is to move the sliding gate nozzle in the vertical direction with respect to the long side direction of the mold in a state in which the long side direction of the sliding gate nozzle and the immersion nozzle having an elliptical inner hole is installed in parallel with the long side direction of the mold. Provides a flow control method for molten steel.

향과 나란하게 설치된 상태에서, 슬라이딩 게이트 노즐의 이동방향이 주형의 장변방향에 대하여 수직한 방향으로 이동시키는 용강의 유량제어방법을 제공한다.Provided is a flow rate control method for molten steel in which the direction of movement of the sliding gate nozzle is moved in a direction perpendicular to the long side direction of the mold in a state in which it is installed in parallel with the scent.

Description

용강의 주입노즐과 이를 이용한 유량제어방법Injection nozzle of molten steel and flow control method using the same

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 일반적인 연속주조 설비의 구성도,1 is a configuration diagram of a general continuous casting facility,

제2도는 본 발명에 따른 노즐의 상세도,2 is a detailed view of a nozzle according to the present invention,

제3도는 수모델 실험의 조건을 나타내는 설명도,3 is an explanatory diagram showing the conditions of the water model experiment,

제5도는 슬라이딩 게이트 노즐을 주형의 장변방향과 평행 및 수직방향으로 이동하는 경우,침지노즐 장변과 단변의 비와 좌우측에서 측정된 유속의 차이와의 관계를 도시한 그래프도이다.FIG. 5 is a graph showing the relationship between the ratio of the long side and the short side of the immersion nozzle and the difference in flow velocity measured on the left and right sides when the sliding gate nozzle is moved in parallel and vertical directions with the long side direction of the mold.

Claims (2)

턴디쉬 (4)로부터 주형(8)으로 용강을 유입시키는 노즐에 있어서, 슬라이딩 게이트노즐(10)과 침지노즐(7)의 내부구멍 (10')(7')을 타원형으로 형성하고, 침지노즐(7)의 단변외경 (d3)은 주형(8) 폭(d4)의 1/2 이하로 형성하며, 장변내경(d1)은 단변내경(d2)의 1.5-2배로 형성함을 특징으로 하는 용강의 주입노즐.In the nozzle for introducing molten steel from the tundish (4) to the mold (8), the sliding gate nozzle (10) and the inner holes (10 ') (7') of the immersion nozzle (7) are formed in an elliptical shape, and the immersion nozzle The short side outer diameter (d 3 ) of (7) is formed to be 1/2 or less of the width (d 4 ) of the mold (8), and the long side inner diameter (d 1 ) is formed to be 1.5-2 times the short side inner diameter (d 2 ). Injection nozzle of molten steel characterized by the above-mentioned. 턴디쉬(4)로부터 주형(8)으로 유입되는 용강의 유량을 제어하는 방법에 있어서, 타원형의 내부구멍(10')(7')을 각각 갖춘 슬라이딩 게이트 노즐(10)가 침지노즐(7)의 장변방향(P2)이 주형(8)의 장변방향(P1)과 나란하게 설치된 상태에서, 슬라이딩 게이트노즐(10)의 이동방향을 주형(8)의 장변방향(P1)에 대하여 수직방향(S1)으로 이동시킴을 특징으로 하는 용강의 유량 제어방법.In the method for controlling the flow rate of molten steel flowing from the tundish 4 into the mold 8, the sliding gate nozzles 10 each having elliptical inner holes 10 ′ and 7 ′ are immersed in the immersion nozzle 7. In the state where the long side direction P 2 of is installed in parallel with the long side direction P 1 of the mold 8, the moving direction of the sliding gate nozzle 10 is perpendicular to the long side direction P 1 of the mold 8. Flow control method of the molten steel, characterized in that moving in the direction (S 1 ). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920026523A 1992-12-30 1992-12-30 Injection nozzle of molten steel and flow control method using the same KR950007172B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920026523A KR950007172B1 (en) 1992-12-30 1992-12-30 Injection nozzle of molten steel and flow control method using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920026523A KR950007172B1 (en) 1992-12-30 1992-12-30 Injection nozzle of molten steel and flow control method using the same

Publications (2)

Publication Number Publication Date
KR940013674A true KR940013674A (en) 1994-07-15
KR950007172B1 KR950007172B1 (en) 1995-07-03

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Application Number Title Priority Date Filing Date
KR1019920026523A KR950007172B1 (en) 1992-12-30 1992-12-30 Injection nozzle of molten steel and flow control method using the same

Country Status (1)

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KR (1) KR950007172B1 (en)

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KR950007172B1 (en) 1995-07-03

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