KR20040054382A - Device for guiding flow of hot-steel from submerged nozzle in mold of continuous casting line - Google Patents

Device for guiding flow of hot-steel from submerged nozzle in mold of continuous casting line Download PDF

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Publication number
KR20040054382A
KR20040054382A KR1020020081415A KR20020081415A KR20040054382A KR 20040054382 A KR20040054382 A KR 20040054382A KR 1020020081415 A KR1020020081415 A KR 1020020081415A KR 20020081415 A KR20020081415 A KR 20020081415A KR 20040054382 A KR20040054382 A KR 20040054382A
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KR
South Korea
Prior art keywords
molten steel
mold
immersion nozzle
guiding cap
cap
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KR1020020081415A
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Korean (ko)
Inventor
엄정익
우경회
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주식회사 포스코
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Priority to KR1020020081415A priority Critical patent/KR20040054382A/en
Publication of KR20040054382A publication Critical patent/KR20040054382A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle
    • 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
    • B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors

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

Abstract

PURPOSE: A device for preventing molten steel from scattering in mold of continuous casting line is provided to prevent safety accident of workers and improve quality of casting slab by initially preventing molten steel from scattering when injecting molten steel into the mold from tundish during continuous casting operation. CONSTITUTION: The device for guiding molten steel of submerged entry nozzle(111) into mold(120) in continuous casting line comprises a guiding cap(10) installed in an upper part of molten steel spouting hole(112) of the submerged entry nozzle of tundish; and an attaching and detaching means for attaching the guiding cap to the submerged entry nozzle or detaching the guiding cap from the submerged entry nozzle so that flow of molten steel spouted from the submerged entry nozzle is guided into the mold, wherein the molten steel guiding cap is constructed in such a structure that the molten steel guiding cap is formed in a container shape a lower part of which is opened, the molten steel guiding cap is extended in a molten steel spouting direction, and the inner surface of the molten steel guiding cap forms a molten steel guiding surface(11) with being curved in a circular arc shape to guide flow of molten steel, and wherein the attaching and detaching means comprises a lower catching projection(21) projectingly installed on the outer surface of the submerged entry nozzle to fix an inner upper part of the guiding cap, a proceeding groove formed on circular hole of the guiding cap so that the lower catching projection is proceeded through the proceeding groove, and an upper catching projection projectingly installed on the submerged entry nozzle with being spaced apart from an upper part of the lower catching projection as much as thickness of an upper part of the guiding cap to fix the upper part of the guiding cap.

Description

연속주조설비 침지노즐의 주형내 용강 유도장치{Device for guiding flow of hot-steel from submerged nozzle in mold of continuous casting line}Device for guiding flow of hot-steel from submerged nozzle in mold of continuous casting line

본 발명은 연속주조설비의 침지노즐에 관한 것으로, 더욱 상세하게는 침지노즐로부터 주형 내로 분출되는 용강의 급속한 와류를 제어할 수 있도록 된 침지노즐의 주형내 용강 유도장치에 관한 것이다.The present invention relates to an immersion nozzle of a continuous casting facility, and more particularly, to an apparatus for inducing molten steel of an immersion nozzle, which is capable of controlling a rapid vortex of molten steel ejected from a immersion nozzle into a mold.

일반적으로 연속주조설비는 제강로에서 생산되어 레이들로 이송된 용강을 턴디쉬에 받았다가 주형으로 공급하여 일정한 크기의 슬라브를 연속 생산하는 설비이다.In general, continuous casting equipment is a facility that continuously produces slabs of a certain size by receiving molten steel that is produced in a steel mill and transferred to ladles and then supplied to a mold.

상기 설비의 구성은 도 1에 도시된 바와 같이 제강공정에서 정련된 용강을 담고 있는 레이들(100)과, 레이들을 지지하는 레이들 터렛, 레이들(100)로부터 용강을 공급받아 일시적으로 용강을 저장한 후 각 스트랜드로 분배하는 턴디쉬(110), 턴디쉬(110)의 침지노즐(111)을 통해 주입된 용강을 일정한 형상으로 초기 응고시켜 주는 수냉 주형(120), 미응고 주편으로부터 열을 빼앗아 응고를 완료시키면서 주편을 밴딩 혹은 교정할 수 있는 롤과 스프레이노즐로 구성된 2차냉각대, 그리고 주편 절단장치, 주편이송롤러테이블, 냉각 야드, 주편표면 용삭장치 등으로 구성되어 있다.As shown in FIG. 1, the facility is temporarily supplied with molten steel from a ladle 100 containing molten steel refined in a steelmaking process, a ladle turret supporting the ladle, and a ladle 100. After storing the heat from the tundish 110 and the molten steel injected through the immersion nozzle 111 of the tundish 110 to distribute to each strand in a predetermined shape, the water-cooled mold 120, heat from the unsolidified cast It consists of a secondary cooler consisting of rolls and spray nozzles that can bend or straighten the slab while completing solidification, and the slab cutting device, the slab feed roller table, the cooling yard, and the slab surface grinding device.

따라서 레이들로부터 턴디쉬로 공급된 용강은 턴디쉬 하부에 설치되어 있는 침적노즐을 통해 주형 내부로 주입되어 주편으로 제조된다.Therefore, the molten steel supplied from the ladle to the tundish is injected into the mold through the immersion nozzle installed under the tundish and manufactured as a cast.

상기 침지노즐(111)은 도 7에 도시된 바와 같이 하단 측면에 상방향으로 경사지게 용강을 분출하는 홀(112)이 형성되어 있는 데, 이 홀(112)을 통해 분출되는 용강이 주형(120) 내에서 일으키는 와류에 의해 설비나 제품에 좋지 않은 영향을일으키게 된다.The immersion nozzle 111 is formed with a hole 112 for ejecting the molten steel inclined upwardly on the lower side as shown in Figure 7, the molten steel ejected through the hole 112 is cast 120 Eddy vortices can cause adverse effects on equipment and products.

즉, 종래의 구조에 의하면 상기 침지노즐의 홀로부터 분출되는 용강은 분출방향으로 회전되는 와류를 일으키게 되며, 이렇게 발생된 와류는 주형 내벽까지 도달하여 용강의 철정압에 의해 주형 내벽에 기계적 스트레스를 가하게 된다.That is, according to the conventional structure, the molten steel ejected from the hole of the immersion nozzle causes a vortex that rotates in the ejecting direction, and the vortices thus generated reach the inner wall of the mold to exert mechanical stress on the inner wall of the mold by the iron static pressure of the molten steel. do.

따라서 주형의 수명을 단축시키게 되고, 주형 내에서 응고되는 주편의 표면에도 영향을 미쳐 주편 표면의 품질을 저하시키는 문제점을 일으킨다.Therefore, the life of the mold is shortened, affecting the surface of the slab solidified in the mold, causing a problem of lowering the quality of the surface of the cast.

특히, 초기 용강 주입시에는 침지노즐로부터 분출되는 용강이 주형쪽으로 비산됨에 따라 주형 내벽의 소손이 더욱 심해지게 된다.In particular, during the initial molten steel injection, as the molten steel ejected from the immersion nozzle is scattered toward the mold, burnout of the mold inner wall becomes more severe.

이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 연속주조작업시 턴디쉬에서 주형으로 용강을 주입할 때 초기 비산되는 용강을 막아 작업자의 안전사고 방지와 주편의 품질을 향상시킬 수 있도록 된 연속주조설비의 주형내 용강 비산 방지장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, to prevent molten steel that is initially scattered when injecting molten steel from the tundish during the continuous casting operation to improve the safety of the worker and the quality of the cast It is an object of the present invention to provide an apparatus for preventing molten steel from casting in a continuous casting facility.

도 1은 일반적인 연속주조설비를 도시한 개략적인 측단면도,Figure 1 is a schematic side cross-sectional view showing a typical continuous casting equipment,

도 2는 본 발명에 따라 침지노즐에 용강 유도장치가 장착된 상태를 도시한 사시도,Figure 2 is a perspective view showing a state in which the molten steel induction apparatus is mounted on the immersion nozzle in accordance with the present invention,

도 3은 본 발명에 따른 용강 유도장치의 일부 절개 사시도,3 is a partially cutaway perspective view of the molten steel induction apparatus according to the present invention,

도 4는 본 발명에 따른 침지노즐을 도시한 사시도,4 is a perspective view showing an immersion nozzle according to the present invention;

도 5는 본 발명에 따른 도 2의 단면도,5 is a cross-sectional view of FIG. 2 according to the present invention;

도 6은 본 발명에 따른 용강유도장치의 사용상태를 도시한 단면도,6 is a cross-sectional view showing a state of use of the molten steel induction apparatus according to the present invention,

도 7은 종래기술에 따른 침지노즐의 주형내 용강 분출상태를 도시한 단면도이다.7 is a cross-sectional view showing the molten steel ejection state in the mold of the immersion nozzle according to the prior art.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 유도캡 11 : 용강유도면10: guide cap 11: molten steel induction drawing

12 : 원형구멍 13 : 진행홈12: circular hole 13: progress groove

20 : 하단걸림돌기 21 : 상단걸림돌기20: lower locking projection 21: upper locking projection

상기와 같은 목적을 달성하기 위한 본 발명은, 턴디쉬의 침적노즐 외측에 용강의 흐름을 주형 내측으로 유도하는 유도캡을 설치하여 용강에 의한 와류 크기를 줄일 수 있도록 함을 그 요지로 한다.The present invention for achieving the above object is to install an induction cap for guiding the flow of molten steel to the inside of the mold outside the deposition nozzle of the tundish to reduce the size of the vortex by the molten steel.

이를 위해 본 발명은 침지노즐에 설치되는 유도캡과, 이 유도캡을 침지노즐에 착탈시키기 위한 착탈수단을 포함한다.To this end, the present invention includes an induction cap installed on the immersion nozzle, and a detachable means for attaching and detaching the induction cap to the immersion nozzle.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 일반적인 연속주조설비를 도시한 개략적인 측단면도이고, 도 2는 본 발명에 따라 침지노즐에 용강 유도장치가 장착된 상태를 도시한 사시도이다.Figure 1 is a schematic side cross-sectional view showing a general continuous casting equipment, Figure 2 is a perspective view showing a state in which the molten steel induction apparatus is mounted to the immersion nozzle in accordance with the present invention.

상기한 도면에 의하면, 연속주조설비는 용강을 담고 있는 레이들(100)과, 레이들을 지지하는 레이들 터렛, 레이들(100)로부터 용강을 공급받아 일시적으로 용강을 저장한 후 각 스트랜드로 분배하는 턴디쉬(110), 턴디쉬(110)의 침지노즐(111)을 통해 주입된 용강을 일정한 형상으로 초기 응고시켜 주는 수냉 주형(120)을 포함한다.According to the above drawings, the continuous casting facility receives the molten steel from the ladle 100 containing the molten steel, the ladle turret supporting the ladle, the ladle 100 temporarily stores the molten steel and distributes it to each strand. The tundish 110, the water-cooled mold 120 for initially solidifying the molten steel injected through the immersion nozzle 111 of the tundish 110 to a predetermined shape.

여기서 본 발명은 상기 침지노즐(111)의 용강 분출홀(112) 상부에 설치되는 유도캡(10)과, 이 유도캡(10)을 침지노즐(111)에 착탈시키기 위한 착탈수단을 포함한다.Here, the present invention includes an induction cap 10 installed on the molten steel jet hole 112 of the immersion nozzle 111 and a detachable means for attaching and detaching the induction cap 10 to the immersion nozzle 111.

상기 용강 유도캡(10)은 도 3에 도시된 바와 같이, 하단이 개방된 용기 형태를 이루며 용강 분출방향으로 길게 연장되고, 내측면은 용강의 흐름을 유도하기 위하여 원호형태로 만곡되어 용강유도면(11)을 형성하고 있으며, 중앙에는 침지노즐(111)이 삽입되는 원형구멍(12)이 형성된 구조로 되어 있다.As shown in FIG. 3, the molten steel induction cap 10 forms a container having an open bottom and extends in the molten steel ejecting direction, and the inner surface thereof is curved in an arc shape to induce the flow of molten steel. (11) is formed, and a circular hole 12 into which the immersion nozzle 111 is inserted is formed in the center.

물론, 상기 유도캡(10)은 고온의 용강으로부터 보호될 수 있도록 침지노즐(111)과 동일한 재질의 내화물로 제조됨이 바람직하다.Of course, the induction cap 10 is preferably made of a refractory material of the same material as the immersion nozzle 111 to be protected from high temperature molten steel.

상기 유도캡(10)은 설명한 바와 같이 원형이 아니라 타원형을 이루는 데, 이는 통상 침지노즐(111)에 형성되는 용강 분출홀(112)이 180도 각도로 두 개가 형성되기 때문으로, 유도캡(10)의 양단이 각각의 분출홀(112) 위에 위치되어 각분출홀(112)로부터 분출되는 용강을 유도하게 된다.The induction cap 10 has an elliptical shape rather than a circular shape as described, since two molten steel ejection holes 112 formed in the immersion nozzle 111 are formed at an angle of 180 degrees. Both ends of the) are positioned above each ejection hole 112 to induce molten steel ejected from each ejection hole 112.

한편, 상기 유도캡(10)은 사용시간에 따라 소손된 경우 이를 교체하여야 하며 이를 위한 침지노즐(111)과의 착탈수단을 살펴보면, 도 3과 도 4에 도시된 바와 같이 상기 침지노즐(111) 외측면에 돌출설치되어 유도캡(10)의 내측 상단을 고정하는 하단걸림돌기(20), 상기 유도캡(10)의 원형구멍(12)에 형성되어 상기 하단걸림돌기(20)가 진행할 수 있도록 된 진행홈(13), 상기 하단걸림돌기(20) 상단에서 유도캡(10)의 상단 두께만큼 이격되어 상기 침지노즐(111)에 돌출 설치되는 유도캡(10) 상단 고정용 상단걸림돌기(21)를 포함한다.On the other hand, the induction cap 10 should be replaced if it is damaged according to the use time and look at the detachment means with the immersion nozzle 111 for this, the immersion nozzle 111 as shown in Figures 3 and 4 Protruding to the outer surface is formed in the lower locking projection 20 to fix the inner upper end of the induction cap 10, the circular hole 12 of the induction cap 10 so that the lower locking projection 20 can proceed. Guide grooves for fixing the upper guide protrusions 21 for fixing the guide grooves 10 which are spaced apart by the upper thickness of the guide cap 10 from the upper end of the lower locking protrusion 20 and protruded to the immersion nozzle 111. ).

따라서 유도캡(10)은 하단걸림돌기(20)와 상단걸림돌기(21) 사이에 걸려 침지노즐(111)에 고정설치될 수 있는 것이다.Therefore, the induction cap 10 can be fixed to the immersion nozzle 111 is caught between the lower locking projection 20 and the upper locking projection (21).

여기서 상기 하단걸림돌기(20)는 원형구멍(12)에 형성되는 진행홈(13)과 동일한 크기로 이루어지나, 상기 상단걸림돌기(21)는 원형구멍(12)보다 크게 형성하여 상단걸림돌기(21)가 원형구멍(12)을 통해 빠지지 않도록 한다.Wherein the lower locking projection 20 is made of the same size as the traveling groove 13 formed in the circular hole 12, the upper locking projection 21 is formed larger than the circular hole 12, the upper locking projection ( 21 does not fall through the circular hole (12).

또한, 상기 진행홈(13)과 하단걸림돌기(20)의 설치위치는 침지노즐(111)에 대한 유도캡(10)의 설치위치와 매우 관련이 있는 데, 상기 유도캡(10)의 양선단이 침지노즐(111)의 용강 분출홀(112) 위쪽에 위치하였을 때 상기 진행홈(13)과 하단걸림돌기(20)가 일치하지 않아야 하며, 이 위치를 제외하고 특별히 하단걸림돌기(20)와 진행홈(13)의 설치위치가 한정되지 않는다.In addition, the installation position of the progress groove 13 and the lower locking projection 20 is very related to the installation position of the induction cap 10 for the immersion nozzle 111, both ends of the induction cap 10 When the immersion nozzle 111 is located above the molten steel jet hole 112, the progress groove 13 and the lower locking projection 20 should not coincide, except for this position, in particular the lower locking projection 20 The installation position of the progress groove 13 is not limited.

도 5는 침지노즐(111)에 유도캡(10)이 고정설치된 상태를 잘 나타내고 있으며, 도면에서와 같이 상기 유도캡(10)의 내측면과 외측 상단이 각각 침지노즐(111)에 설치된 하단걸림돌기(20)와 상단걸림돌기(21)에 걸려 고정된다.5 shows a state in which the induction cap 10 is fixedly installed on the immersion nozzle 111, and as shown in the drawing, the inner side and the outer upper end of the induction cap 10 are respectively provided with a lower locking stone installed in the immersion nozzle 111. It is fixed to the hook 20 and the upper locking projection (21).

이하, 본 발명의 작용에 대해 도 6을 참조하여 설명한다.Hereinafter, the operation of the present invention will be described with reference to FIG.

먼저 유도캡(10)을 침지노즐(111)에 설치하기 위해서 유도캡(10)의 원형구멍(12)에 형성된 진행홈(13)의 위치를 침지노즐(111)에 형성된 하단걸림돌기(20)의 위치와 맞춘 후 유도캡(10)을 침지노즐(111) 상부로 진행시킨다.First, in order to install the induction cap 10 in the immersion nozzle 111, the lower end projection 20 formed in the immersion nozzle 111 is the position of the progress groove 13 formed in the circular hole 12 of the induction cap 10. After aligning with the induction cap 10 proceeds to the upper immersion nozzle (111).

이에 따라 하단걸림돌기(20)가 진행홈(13)으로 빠져나가면서 유도캡(10)은 하단걸림돌기(20) 위쪽으로 진행하게 되고 유도캡(10)의 상단이 침지노즐(111)의 상단걸림돌기(21)에 걸리게 된다.Accordingly, as the lower locking projection 20 exits to the progressing groove 13, the induction cap 10 proceeds to the upper lower locking projection 20, and the upper end of the induction cap 10 is the upper end of the immersion nozzle 111. The locking projection 21 is caught.

이와같이 상단걸림돌기(21)에 걸릴 때까지 유도캡(10)을 진행시키게 되면 하단걸림돌기(20)는 진행홈(13) 밑으로 빠져나오게 되므로 이 상태에서 작업자는 유도캡(10)을 침지노즐(111)에 대해 회동시켜줌으로써 상단걸림돌기(21)와 하단걸림돌기(20) 사이에 유도캡(10)을 고정시킬 수 있게 된다.In this way, when the guide cap 10 is advanced until the upper catching protrusion 21 is caught, the lower catching protrusion 20 is pulled out under the progressing groove 13, so in this state, the worker dips the guide cap 10 into the nozzle. By rotating about (111) it is possible to fix the induction cap 10 between the upper locking projection 21 and the lower locking projection (20).

따라서 유도캡(10)은 하단걸림돌기(20)에 걸려 자중에 의해 낙하되는 것이 방지되며 상단걸림돌기(21)는 용강의 부력에 의해 유도캡(10)이 부상되는 것을 방지하게 되는 것이다.Therefore, the induction cap 10 is caught by the lower locking projection 20 is prevented from falling by its own weight and the upper locking projection 21 is to prevent the induction cap 10 from being floated by the buoyancy of the molten steel.

이와같이 유도캡(10)이 침지노즐(111)에 고정된 상태에서 침지노즐(111)을 통해 주형 내로 용강이 분출되면, 용강은 침지노즐(111)에 형성된 홀(112)을 통해 분출되어 분출홀(112) 위쪽에 위치한 유도캡(10)의 내측 용강유도면(11)을 따라 와류의 흐름이 유도되어 급속한 용강의 와류 형성이 제어되는 것이다.When molten steel is ejected into the mold through the immersion nozzle 111 in a state where the induction cap 10 is fixed to the immersion nozzle 111, the molten steel is ejected through the hole 112 formed in the immersion nozzle 111. (112) Vortex flow is induced along the inner molten steel induction plane 11 of the induction cap 10 located above to control the rapid formation of the molten steel.

즉, 분출홀(112)을 통해 분출된 용강은 유도캡(10)의 용강유도면(11)을 따라 주형 안쪽으로 흐름이 유도되어 주형 내벽까지 와류의 흐름이 도달하지 않게 되는 것이다.That is, the molten steel ejected through the ejection hole 112 is guided to the inside of the mold along the molten steel induction surface 11 of the induction cap 10 so that the flow of the vortex does not reach the inner wall of the mold.

이상 설명한 바와 같이 본 발명에 따른 연속주조설비 침지노즐의 주형내 용강 유도장치에 의하면, 초기 용강 주입시 급속한 용강의 와류형성을 방지함으로써 용강의 와류에 의한 주형 내벽의 소손과 비산 현상을 방지하고 이에 따라 비산 지금에 의한 초기 용강 주편의 품질을 향상시킬 수 있는 효과가 있다.As described above, according to the molten steel induction apparatus of the continuous casting equipment immersion nozzle according to the present invention, by preventing the rapid vortex formation of molten steel during initial molten steel injection to prevent burnout and scattering of the inner wall of the mold due to the vortex of molten steel Therefore, there is an effect that can improve the quality of the initial molten steel cast by the scattering now.

또한, 용강의 정적상태를 가능하게 하여 주편 내에서 용강의 성분 균일화를 이루고, 주형 내에서 용강 흐름을 안정화시켜 브레이크 아웃을 방지함으로써 설비사고 또한 방지할 수 있게 된다.In addition, by enabling the static state of the molten steel to achieve a uniform component of the molten steel in the cast, stabilize the molten steel flow in the mold to prevent breakout can also prevent equipment accidents.

Claims (3)

턴디쉬 침지노즐의 용강 분출홀 상부에 설치되는 유도캡과, 이 유도캡을 침지노즐에 착탈시키기 위한 착탈수단을 포함하여, 침적노즐로부터 분출되는 용강의 흐름을 주형 내측으로 유도하도록 된 연속주조설비 침지노즐의 주형내 용강 유도장치.Continuous casting equipment to guide the flow of molten steel ejected from the deposition nozzle to the inside of the mold, including an induction cap installed above the molten steel ejection hole of the tundish immersion nozzle and a detachment means for attaching and detaching the induction cap to the immersion nozzle. In-mold molten steel guide device for immersion nozzle. 제 1 항에 있어서, 상기 용강 유도캡은 하단이 개방된 용기 형태를 이루며 용강 분출방향으로 길게 연장되고, 내측면은 용강의 흐름을 유도하기 위하여 원호형태로 만곡되어 용강유도면을 형성하는 구조로 된 것을 특징으로 하는 연속주조설비 침지노즐의 주형내 용강 유도장치.The method of claim 1, wherein the molten steel induction cap is formed in the form of a container with an open lower end and extending in the molten steel ejection direction, the inner surface is curved in an arc shape to guide the flow of molten steel to form a molten steel induction surface In-mold molten steel induction apparatus of the continuous casting equipment immersion nozzle, characterized in that. 제 1 항에 있어서, 상기 착탈수단은 상기 침지노즐 외측면에 돌출설치되어 유도캡의 내측 상단을 고정하는 하단걸림돌기, 상기 유도캡의 원형구멍에 형성되어 상기 하단걸림돌기가 진행할 수 있도록 된 진행홈, 상기 하단걸림돌기 상단에서 유도캡의 상단 두께만큼 이격되어 상기 침지노즐에 돌출 설치되는 유도캡 상단 고정용 상단걸림돌기를 포함하는 것을 특징으로 하는 연속주조설비 침지노즐의 주형내 용강 유도장치.According to claim 1, The detachable means is protruding in the outer surface of the immersion nozzle is a lower locking projection for fixing the inner upper end of the induction cap, the progress groove is formed in the circular hole of the induction cap to proceed the lower locking projection The molten steel induction apparatus of the continuous casting equipment immersion nozzle, characterized in that it comprises a top locking projection for fixing the top of the induction cap is installed to protrude in the immersion nozzle spaced apart by the top thickness of the induction cap from the top of the lower locking projection.
KR1020020081415A 2002-12-18 2002-12-18 Device for guiding flow of hot-steel from submerged nozzle in mold of continuous casting line KR20040054382A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180063605A (en) * 2016-12-02 2018-06-12 주식회사 포스코 Nozzle and casting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180063605A (en) * 2016-12-02 2018-06-12 주식회사 포스코 Nozzle and casting method

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