KR20050001633A - The Argon Shieling Box for Protecting an Oxid on Casting Ingot - Google Patents

The Argon Shieling Box for Protecting an Oxid on Casting Ingot Download PDF

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Publication number
KR20050001633A
KR20050001633A KR1020030041890A KR20030041890A KR20050001633A KR 20050001633 A KR20050001633 A KR 20050001633A KR 1020030041890 A KR1020030041890 A KR 1020030041890A KR 20030041890 A KR20030041890 A KR 20030041890A KR 20050001633 A KR20050001633 A KR 20050001633A
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South Korea
Prior art keywords
auxiliary box
shielding device
housing
cup sleeve
box
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KR1020030041890A
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Korean (ko)
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KR100952745B1 (en
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김대중
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두산중공업 주식회사
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Priority to KR1020030041890A priority Critical patent/KR100952745B1/en
Publication of KR20050001633A publication Critical patent/KR20050001633A/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
    • B22D41/502—Connection arrangements; Sealing means therefor
    • 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
    • B22D41/58—Pouring-nozzles with gas injecting means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: A shielding device is provided to minimize generation of a reoxide on a casting ingot by positioning a shielding device at the upper portion of an injection tube. CONSTITUTION: A shielding device is installed on the lower side of a nozzle(12) of a ladle(10) and on the upper side of a cup sleeve(16) of a mold(14). The shielding device prevents injected metal from being contacted with the air. A body(40) is positioned at the upper portion of the cup sleeve. An auxiliary box(42) is integrally engaged with one side of the body. One heat resistant glass(44) or more, at least, is provided at one end portion of the auxiliary box. A gas introducing tube(46) is installed in the auxiliary box and the body.

Description

대기조괴의 재산화물 생성방지용 차폐장치 {The Argon Shieling Box for Protecting an Oxid on Casting Ingot}Shielding device to prevent re-oxide generation of air mass {The Argon Shieling Box for Protecting an Oxid on Casting Ingot}

본 발명은 대기조괴법으로 잉곳 제작시 주입 용강의 재산화물을 방지하기 위한 장치에 관한 것으로, 더욱 상세하게는 아르곤 가스의 주입이 가능하고 기밀이유지되는 차폐장치를 주입관 상부에 안치시킴으로써 주탕시 재산화물 생성을 최소화하도록 한 대기조괴의 재산화물 생성방지용 차폐장치에 관한 것이다.The present invention relates to a device for preventing the re-oxidation of the molten steel in the ingot production by the air ingot method, and more particularly, by placing a shielding device capable of injecting argon gas and kept airtight in the upper portion of the injection tube The present invention relates to a shield for preventing the generation of re-oxides in an air mass to minimize cargo generation.

도 1에 도시된 바와 같이, 일반적으로 정련작업의 종료 후 용강의 주입을 위해 레들(10)의 노즐(12)을 하측 몰드(14)의 상부에 구비된 컵 슬리브(Cup Sleeve)(16)와 일치시킨다.As shown in FIG. 1, the nozzle 12 of the ladle 10 is generally provided with a cup sleeve 16 provided on the upper side of the lower mold 14 to inject molten steel after completion of the refining operation. Match.

그리고, 상기 용강의 주탕시 레들(10)의 하측에는 노즐(12)의 주로를 개폐시킬 수 있는 개폐장치(20)가 구비되고, 이 개폐장치(20)는 상기 노즐(12)의 개방 또는 폐쇄시키는 슬라이더(22)와, 이 슬라이더(22)를 구동시키는 확장로드(24) 및 실린더(26)로 이루어져 있다.In addition, an opening and closing device 20 capable of opening and closing the main part of the nozzle 12 is provided at the lower side of the ladle 10 when pouring molten steel, and the opening and closing device 20 is opened or closed of the nozzle 12. And a slider 22, an extension rod 24 and a cylinder 26 for driving the slider 22.

아울러, 상기 컵슬리브(16)의 상측에는 주탕되는 용강이 대기와 접촉하지 않도록 막아주는 소정의 차폐판(30)이 구비되는데, 상기 차폐판(30)은 원통 형상으로 형성되어 상기 개폐장치(20)의 하면 러그(28)에 고리(32)를 통해 결합된다.In addition, a predetermined shielding plate 30 is provided on the upper side of the cup sleeve 16 to prevent molten steel from being in contact with the atmosphere, and the shielding plate 30 is formed in a cylindrical shape so that the opening and closing device 20 ) Is coupled to the lug 28 via a ring 32.

그리고, 도면에는 미도시되었지만, 상기 차폐판(30)의 내부로 파이프(미도시)를 삽입하여 외부로부터 아르곤과 같은 불활성 가스를 주입하게 된다.And, although not shown in the figure, a pipe (not shown) is inserted into the shield plate 30 to inject an inert gas such as argon from the outside.

그러나, 이와 같은 종래의 차폐 방법은 상기 차폐판(30)과 개폐장치(20) 사이에 틈(Gap)이 발생함에 따라, 이 틈을 통해 용강 주입류가 대기와 접촉함으로써 차폐판 내부의 산소 농도가 17~18%가 된다. 이는 대기 중의 산소 농도와 비슷한 수준으로 이에 따른 주입 용강의 재산화물이 발생되어 건전부인 잉고트 몸체 내의 품질 결함을 발생시키는 문제가 되었다.However, in the conventional shielding method, as a gap occurs between the shielding plate 30 and the opening and closing device 20, the molten steel injection flow contacts the atmosphere through the gap, so that the oxygen concentration inside the shielding plate is increased. Becomes 17-18%. This is a level similar to the concentration of oxygen in the atmosphere is a problem that generates a quality defect in the ingot body, which is healthy by the re-oxidation of the injection molten steel.

본 발명은 상술한 종래의 문제점을 개선하기 위해 개발된 것으로서, 대기조괴법으로 잉곳 제작시 주입되는 용강이 대기와 접촉하는 것을 방지하여 재산화물 생성을 최소화하도록 한 차폐장치를 제공함에 목적이 있다.The present invention was developed to improve the above-described problems, and an object of the present invention is to provide a shielding device for minimizing the generation of re-oxides by preventing molten steel injected during ingot fabrication by air ingot manufacturing from contact with the atmosphere.

도 1은 종래 레들 하측에 차폐장치가 설치된 상태를 도시한 정면도1 is a front view showing a state in which a shield is installed in the conventional ladle lower side

도 2는 본 발명의 차폐장치가 설치된 상태를 도시한 정면도Figure 2 is a front view showing a state in which the shield of the present invention is installed

도 3은 본 발명의 차폐장치를 도시한 평면도Figure 3 is a plan view showing a shield of the present invention

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

10 : 레들 16 : 컵슬리브10: ladle 16: cup sleeve

40 : 함체 42 : 보조박스40: enclosure 42: auxiliary box

44 : 내열유리 46 : 가스 주입관44: heat-resistant glass 46: gas injection tube

48 : 토출공 50 : 가스캣48: discharge hole 50: gasket

상기의 목적을 달성하기 위한 본 발명은 레들의 노즐 하측과 몰드의 컵슬리브 상측에 설치되며, 주입 용강이 대기와 접촉하지 않도록 구비된 차폐장치에 있어서, 상기 컵슬리브 상부에 안치되는 함체와, 상기 함체의 일측에 일체로 결합된 보조박스와, 상기 보조박스의 일단부에 구비된 하나 이상의 내열유리와, 상기 보조박스 및 함체의 내부에 설치된 가스 주입관을 포함하여 된 것을 기술적 특징으로 한다.The present invention for achieving the above object is provided on the lower side of the nozzle of the ladle and the upper side of the cup sleeve of the mold, the shielding device provided so that the injection molten steel does not come into contact with the atmosphere, the housing placed on the upper side of the cup sleeve, and Technical features are characterized in that it comprises an auxiliary box integrally coupled to one side of the enclosure, one or more heat-resistant glass provided at one end of the auxiliary box, and a gas injection tube installed inside the auxiliary box and the enclosure.

또한, 상기 함체의 상면 또는 하면에는 기밀유지를 위해 가스캣이 부착된 것을 특징으로 한다.In addition, the upper surface or the lower surface of the housing is characterized in that the gasket is attached for airtightness.

이하, 본 발명의 바람직한 실시예를 첨부된 예시도면에 의거 상세히 살펴보면 다음과 같다.Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2 및 도 3에 도시된 바와 같이, 본 발명은 레들(10)의 노즐(12) 하측과 몰드(14)의 컵슬리브(16) 상측에 설치되며, 주입 용강이 대기와 접촉하지 않도록구비된 차폐장치에 있어서, 상기 컵슬리브(16) 상부에 안치되는 함체(40)와, 상기 함체(40)의 일측에 일체로 결합된 보조박스(42)와, 상기 보조박스(42)의 일단부에 구비된 하나 이상의 내열유리(44)와, 상기 보조박스(42) 및 함체(40)의 내부에 설치된 가스 주입관(46)을 포함하여 이루어져 있다.As shown in Figures 2 and 3, the present invention is installed below the nozzle 12 of the ladle 10 and above the cup sleeve 16 of the mold 14, provided that the injection molten steel does not come into contact with the atmosphere. In the shielding device, the housing 40 placed on the cup sleeve 16, the auxiliary box 42 integrally coupled to one side of the housing 40, and one end of the auxiliary box 42 It comprises one or more heat-resistant glass 44 provided, and the gas injection pipe 46 installed in the auxiliary box 42 and the housing 40.

상기 가스 주입관(46)은 바람직하게 상기 함체(40)의 내부에서 원형으로 형성되고 외면에 하나 이상의 토출공(48)이 형성되어, 이 토출공(48)을 통해 불활성 가스가 투입될 수 있도록 한다.The gas injection pipe 46 is preferably formed in a circular shape inside the housing 40 and one or more discharge holes 48 are formed on the outer surface thereof so that an inert gas can be introduced through the discharge holes 48. do.

상기 함체(40)의 상면 또는 하면에는 기밀유지를 위해 가스캣(50)이 부착되어 있다.On the upper or lower surface of the housing 40, a gas cat 50 is attached to maintain airtightness.

이와 같이 구성된 본 발명의 차폐장치(100)는 상면과 하면에 구비된 가스캣(50)을 통해 기밀이 유지되어 대기가 함체 내부로 유입되는 것을 방지함으로써 주탕시 재산화물의 생성을 방지해준다.The shielding device 100 of the present invention configured as described above maintains hermeticity through the gas cat 50 provided on the upper and lower surfaces, thereby preventing the air from flowing into the enclosure, thereby preventing the generation of re-oxide during pouring.

또한, 또한, 상기 내열 유리(44)를 통해 주입 용강의 상태 및 속도를 관찰할 수 있어 작업속도를 조절할 수 있고 품질관리를 용이하게 하고, 가스 주입관(46)을 통해 불활성 가스를 안전하고 신속하게 주입시킬 수 있는 것이다.In addition, it is possible to observe the state and speed of the injection molten steel through the heat-resistant glass 44 to adjust the working speed and to facilitate quality control, and to safely and quickly inert gas through the gas injection pipe 46 It can be injected.

이상에서 설명한 바와 같이 본 발명은 대기조괴 작업시 재산화물 발생을 최소화할 수 있어 우수한 품질의 잉곳을 제작할 수 있는 것이다.As described above, the present invention can minimize the generation of re-oxide during the air ingot work is to produce an ingot of excellent quality.

또한, 용강의 주입 상태 및 속도를 외부에서 관찰할 수 있어 작업성이 좋아졌고, 취급이 편리해진 장점이 있다.In addition, since the injection state and speed of molten steel can be observed from the outside, workability is improved and handling is convenient.

Claims (2)

레들(10)의 노즐(12) 하측과 몰드(14)의 컵슬리브(16) 상측에 설치되며, 주입 용강이 대기와 접촉하지 않도록 구비된 차폐장치에 있어서,In the shielding device is provided below the nozzle 12 of the ladle 10 and the cup sleeve 16 of the mold 14, the shielding device is provided so that the injection molten steel does not contact the atmosphere, 상기 컵슬리브(16) 상부에 안치되는 함체(40)와,The housing 40 is placed on the cup sleeve 16, and 상기 함체(40)의 일측에 일체로 결합된 보조박스(42)와,Auxiliary box 42 and integrally coupled to one side of the housing 40, 상기 보조박스(42)의 일단부에 구비된 하나 이상의 내열유리(44)와,At least one heat-resistant glass 44 provided at one end of the auxiliary box 42, 상기 보조박스(42) 및 함체(40)의 내부에 설치된 가스 주입관(46)을 포함하여 된 것을 특징으로 하는 대기조괴의 재산화물 생성방지용 차폐장치.Shielding apparatus for preventing the generation of re-oxide of the air ingot, characterized in that it comprises a gas injection pipe 46 installed in the auxiliary box (42) and the housing (40). 제 1항에 있어서,The method of claim 1, 상기 함체(40)의 상면 또는 하면에는 기밀유지를 위해 가스캣(50)이 부착된 것을 특징으로 하는 대기조괴의 재산화물 생성방지용 차폐장치.The upper or lower surface of the housing 40, the gas cat 50 is attached to the airtight for maintaining the shielding apparatus for preventing the re-oxide generation of the atmosphere.
KR1020030041890A 2003-06-26 2003-06-26 The Argon Shieling Box for Protecting an Oxid on Casting Ingot KR100952745B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105127559A (en) * 2015-09-25 2015-12-09 兰州兰石重型装备股份有限公司 Argon shielding device for titanium material welding and usage method of device
CN112024866A (en) * 2020-09-04 2020-12-04 攀钢集团攀枝花钢铁研究院有限公司 Full-sealed die casting pouring protection device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104226974B (en) * 2014-09-22 2016-06-29 莱芜钢铁集团有限公司 The device and method of the big water-coating port sealed argon-blowing protection of continuous casting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0137806Y2 (en) * 1985-05-30 1989-11-14
JP2705454B2 (en) * 1992-05-15 1998-01-28 住友金属工業株式会社 Automatic closing method of ladle sliding nozzle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105127559A (en) * 2015-09-25 2015-12-09 兰州兰石重型装备股份有限公司 Argon shielding device for titanium material welding and usage method of device
CN112024866A (en) * 2020-09-04 2020-12-04 攀钢集团攀枝花钢铁研究院有限公司 Full-sealed die casting pouring protection device

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