KR200248823Y1 - Both ceramic paper sticking joint sheet - Google Patents

Both ceramic paper sticking joint sheet Download PDF

Info

Publication number
KR200248823Y1
KR200248823Y1 KR2020010014071U KR20010014071U KR200248823Y1 KR 200248823 Y1 KR200248823 Y1 KR 200248823Y1 KR 2020010014071 U KR2020010014071 U KR 2020010014071U KR 20010014071 U KR20010014071 U KR 20010014071U KR 200248823 Y1 KR200248823 Y1 KR 200248823Y1
Authority
KR
South Korea
Prior art keywords
joint sheet
nozzle
ceramic paper
tundish
molten steel
Prior art date
Application number
KR2020010014071U
Other languages
Korean (ko)
Inventor
김복래
이옥재
Original Assignee
포항종합제철 주식회사
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 포항종합제철 주식회사 filed Critical 포항종합제철 주식회사
Priority to KR2020010014071U priority Critical patent/KR200248823Y1/en
Application granted granted Critical
Publication of KR200248823Y1 publication Critical patent/KR200248823Y1/en

Links

Landscapes

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

Abstract

본 고안은 제철소 연주공장 턴디쉬에서 주형으로 주입되는 용강의 재산화방지 및 주형 내에서의 용강유동을 적정화하기 위하여 사용하는 내화물 튜브인 침지노즐과 턴디쉬 카세트 슬라이딩노즐의 하부노즐 사이에 개재되는 내화물재료인 죠인트시이트의 재질 및 형상 개선에 관한 것이다.The present invention is a refractory interposed between an immersion nozzle, which is a refractory tube, which is used to prevent reoxidation of molten steel injected into a mold in a steel mill's tundish, and a lower nozzle of a tundish cassette sliding nozzle. It relates to improving the material and shape of the joint sheet as a material.

본 고안은 턴디쉬와 주형 사이에 설치된 하부노즐과 침지노즐 사이에 개재되는 죠인트시이트의 양면에 SiO2: 50% 이상, Al2O3: 45% 이상, Fe2O3: 1.0% 이하, CaO : 1.0% 이하, Ig-Loss(기타) : 1.0% 이하의 성분조성을 갖고 부착된 세라믹페이퍼와; 상기 세라믹페이퍼의 각 상면에 부착된 이형재인 오일페이퍼를 포함하여 구성되는 것을 특징으로 하는 양면 세라믹페이퍼 부착 죠인트시이트를 제공한다.The present invention has SiO 2 : 50% or more, Al 2 O 3 : 45% or more, Fe 2 O 3 : 1.0% or less, CaO on both sides of the joint sheet interposed between the lower nozzle and the immersion nozzle installed between the tundish and the mold : 1.0% or less, Ig-Loss (other): ceramic paper attached with a component composition of 1.0% or less; It provides a joint sheet with a double-sided ceramic paper characterized in that it comprises an oil paper which is a release material attached to each upper surface of the ceramic paper.

이러한 본 고안은 실링성이 우수하여 침지노즐과 하부노즐 사이로의 에어혼입이 없어 주조대상 용강의 품질이 현저히 향상되고, 용강의 유출사고를 방지할 수 있으므로 작업의 안전성 확보는 물론 생산성이 급격히 향상된다.The present invention has excellent sealing properties, so there is no air mixing between the immersion nozzle and the lower nozzle, so that the quality of the molten steel to be cast is remarkably improved, and the leakage accident of the molten steel can be prevented, thus ensuring safety of work and rapidly improving productivity. .

Description

양면 세라믹페이퍼 부착 죠인트시이트{BOTH CERAMIC PAPER STICKING JOINT SHEET}Joint sheet with both sides ceramic paper {BOTH CERAMIC PAPER STICKING JOINT SHEET}

본 고안은 제철소 연주공장 턴디쉬에서 주형으로 주입되는 용강의 재산화방지 및 주형 내에서의 용강유동을 적정화하기 위하여 사용하는 내화물 튜브인 침지노즐과 턴디쉬 카세트 슬라이딩노즐의 하부노즐 사이에 개재되는 내화물재료인 죠인트시이트의 재질 및 형상 개선에 관한 것이다.The present invention is a refractory interposed between an immersion nozzle, which is a refractory tube, which is used to prevent reoxidation of molten steel injected into a mold in a steel mill's tundish, and a lower nozzle of a tundish cassette sliding nozzle. It relates to improving the material and shape of the joint sheet as a material.

도 1의 예시와 같이, 래들(1) 내부의 용강(9)은 래들 하부의 카세트(2)를 유압으로 열고 닫는 동작을 반복적으로 수행함으로써 턴디쉬(4)로 용강을 충전한다. 이때, 상기 카세트(2) 하부에는 쉬라우드노즐(3)을 결합하여 쉬라우드노즐(3)이 턴디쉬(4) 내부로 침적된 상태에서 주입되도록 하여 용강이 공기와 접촉되는 것을 막는다. 턴디쉬(4) 내로 주입된 용강(9)은 턴디쉬 하부의 카세트 슬라이딩노즐(5)과 침지노즐(6)에 형성된 토출구를 통하여 주형(7)에 주입되어 일정한 크기의 제품(슬라브(SLAB))를 생산하게 된다.As shown in FIG. 1, the molten steel 9 inside the ladle 1 fills the molten steel with the tundish 4 by repeatedly opening and closing the cassette 2 under the ladle by hydraulic pressure. At this time, the shroud nozzle 3 is coupled to the lower portion of the cassette 2 so that the shroud nozzle 3 is injected in a state in which the shroud nozzle 3 is deposited inside the tundish 4 to prevent molten steel from contacting with air. The molten steel (9) injected into the tundish (4) is injected into the mold (7) through the discharge port formed in the cassette sliding nozzle (5) and the immersion nozzle (6) at the bottom of the tundish (SLAB) ) Will be produced.

이때, 상기 침지노즐(6)과 턴디쉬(4)의 용강 주입을 조절하는 수단인 카세트 슬라이딩노즐(5)의 하부에 조립된 하부노즐(11) 사이에는 죠인트시이트(12)가 개재되어 이들 사이로 용강이 유출되지 못하도록 실링하게 된다.At this time, a joint sheet 12 is interposed between the immersion nozzle 6 and the lower nozzle 11 assembled to the lower portion of the cassette sliding nozzle 5, which is a means for controlling molten steel injection of the tundish 4. The molten steel is sealed to prevent leakage.

상기 죠인트시이트(12)는 알루미나, 실리카, 카본을 주성분으로 하는 내화물로서, 침지노즐(6)을 하부노즐(11)에 세팅하기 전에 상기 침지노즐(6) 상부에 올려놓은 상태에서 조립하게 된다. 특히, 상기 죠인트시이트(12)의 일측면에는 주조완료후 침지노즐(6)의 원활한 이형성(분리)을 위해 도 2의 도시와 같은 오일페이퍼(13)가 부착된다. 또한, 상기 죠인트시이트(12)의 성분(Al2O3:68~80%, SiO2:15~18%, C-페놀레진:10%, Fe2O3:0.05%, Na2O:0.05%)중에는 침지노즐(6)과 하부노즐(11)의 결합시 접착력 및 열경화성을 향상시키기 위해 액상의 페놀레진(합성수지)가 함유된다.The joint sheet 12 is a refractory mainly composed of alumina, silica, and carbon. The joint sheet 12 is assembled in a state in which the immersion nozzle 6 is placed on the immersion nozzle 6 before being set in the lower nozzle 11. In particular, one side of the joint sheet 12 is attached to the oil paper 13 as shown in Figure 2 for smooth release (separation) of the immersion nozzle (6) after completion of casting. In addition, the component (Al 2 O 3 : 68-80%, SiO 2 : 15-18%, C-phenol resin: 10%, Fe 2 O 3 : 0.05%, Na 2 O: 0.05) of the joint sheet 12 %) Contains a liquid phenol resin (synthetic resin) in order to improve adhesion and thermosetting properties when the immersion nozzle 6 and the lower nozzle 11 are combined.

그런데, 이러한 죠인트시이트는 냉간상태에서 각 노즐들이 조립되는 일반턴디쉬에서는 문제가 되지 않으나, 열간재사용 턴디쉬에서는 상기 죠인트시이트가 열간조건을 만족하지 못하여 실링성능이 열화되는 단점을 유발하였다.However, such a joint sheet is not a problem in a general tundish in which nozzles are assembled in a cold state, but in a hot reuse tundish, the joint sheet does not satisfy a hot condition and causes a deterioration in sealing performance.

즉, 대략 1100±20℃ 정도로 예열된 침지노즐 상부에 죠인트시이트를 올려놓을때 일측면에 부착된 오일페이퍼가 타면서 하부노즐에 접촉되기 때문에 죠인트시이트의 폭열현상(액상의 페놀레진이 함유된 죠인트시이트가 고열의 내화물과 직접 접촉되면서 화학반응을 일으켜 파열됨)에 의해 죠인트시이트의 일부분이 탈락되면서 노즐 세팅이 불량해지고 심할 경우 주조중 외부공기의 용강내 침투를 야기시킴은 물론 용강유출사고를 불러 일으켜 막대한 손실을 초래할 뿐만 아니라 생산지연, 품질저하 등의 요인이 되게 된다.That is, when the joint sheet is placed on the upper part of the immersion nozzle preheated to about 1100 ± 20 ℃, the oil paper attached to one side burns and contacts the lower nozzle, so that the thermal expansion phenomenon of the joint sheet (joint containing liquid phenol resin) When the sheet comes into direct contact with high-temperature refractory and ruptures due to chemical reactions, part of the joint sheet is dropped, resulting in poor nozzle setting and, in severe cases, intrusion of external air into the molten steel during casting. It causes not only enormous losses but also causes factors such as production delay and quality deterioration.

본 고안은 상술한 바와 같은 종래 기술이 갖는 제반 문제점을 감안하여 이를 해결하고자 안출한 것으로, 침지노즐과 하부노즐 사이에 개재되는 실링재인 죠인트시이트를 일반턴디쉬는 물론 열간재사용 턴디쉬의 열간조건에서도 폭열현상이 일어나지 않도록 그 성분 및 형상을 개선함으로써 주조중 침지노즐과 하부노즐 사이로 외부 공기의 유입, 내화물 용손에 의한 용강유출사고를 예방하고 용강의 품질 및 생산성을 향상시킬 수 있도록 한 양면 세라믹페이퍼 부착 죠인트시이트를 제공함에 그 목적이 있다.The present invention has been made in view of the above-described problems of the prior art, and the joint sheet, which is a sealing material interposed between the immersion nozzle and the lower nozzle, is used in the hot condition of the tundish as well as the general tundish. Double-sided ceramic paper to improve the quality and productivity of molten steel to prevent the inflow of external air between the immersion nozzle and lower nozzle during casting, leakage of molten steel due to the loss of refractory, and to improve the quality and productivity of molten steel. The purpose is to provide a joint sheet.

본 고안의 상기한 목적은 턴디쉬와 주형 사이에 설치된 하부노즐과 침지노즐사이에 개재되는 죠인트시이트의 양면에 SiO2: 50% 이상, Al2O3: 45% 이상, Fe2O3: 1.0% 이하, CaO : 1.0% 이하, Ig-Loss(기타) : 1.0% 이하의 성분조성을 갖고 부착된 세라믹페이퍼와; 상기 세라믹페이퍼의 각 상면에 부착된 이형재인 오일페이퍼를 포함하여 구성되는 것을 특징으로 하는 양면 세라믹페이퍼 부착 죠인트시이트를 제공함에 의해 달성된다.The above object of the present invention is SiO 2 : 50%, Al 2 O 3 : 45% or more, Fe 2 O 3 : 1.0 on both sides of the joint sheet interposed between the lower nozzle and the immersion nozzle installed between the tundish and the mold Ceramic paper attached with a component composition of less than or equal to%, CaO: 1.0% or less, and Ig-Loss (other): 1.0% or less; It is achieved by providing a joint sheet with a double-sided ceramic paper, characterized in that it comprises an oil paper which is a release material attached to each upper surface of the ceramic paper.

도 1은 종래 죠인트시이트의 사용상태도,1 is a state diagram used in the conventional joint sheet,

도 2는 종래 죠인트시이트의 사시도,2 is a perspective view of a conventional joint sheet,

도 3은 본 고안에 따른 죠인트시이트의 사시도 및 A-A선 단면도,3 is a perspective view and a cross-sectional view taken along line A-A of the joint sheet according to the present invention;

도 4는 본 고안에 따른 죠인트시이트의 분해사시도,4 is an exploded perspective view of a joint sheet according to the present invention;

도 5는 본 고안에 따른 죠인트시이트의 사용상태 일부 단면도.5 is a partial cross-sectional view of the use state of the joint sheet according to the present invention.

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

1 : 래들 4 : 턴디쉬1: ladle 4: tundish

6 : 침지노즐 11 : 하부노즐6: immersion nozzle 11: lower nozzle

12,12' : 죠인트시이트 13 : 오일페이퍼12,12 ': Joint Sheet 13: Oil Paper

14 : 세라믹페이퍼14: ceramic paper

이하에서는, 첨부도면을 참조하여 본 고안을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 3은 본 고안에 따른 죠인트시이트의 사시도 및 A-A선 단면도이고, 도 4는 본 고안에 따른 죠인트시이트의 분해사시도이다.3 is a perspective view and a cross-sectional view taken along the line A-A of the joint sheet according to the present invention, Figure 4 is an exploded perspective view of the joint sheet according to the present invention.

도 3 내지 도 4에 따르면, 본 고안의 죠인트시이트(12')는 기존의 죠인트시이트(12)의 양측면에 각각 세라믹페이퍼(14)를 부착한 후 상기 세라믹페이퍼(14)의 상면에 각각 오일페이퍼(13)를 부착하여서 이루어진다.According to FIGS. 3 to 4, the joint sheet 12 ′ of the present invention attaches ceramic paper 14 to both sides of the existing joint sheet 12, and then oil paper on the upper surface of the ceramic paper 14, respectively. By attaching (13).

이때 부착되는 상기 세라믹페이퍼(14)는 다음과 같은 성분조성으로 이루어진다.At this time, the ceramic paper 14 attached is composed of the following composition.

즉, 상기 세리믹페이퍼(14)의 주요 성분 구성은 SiO2: 50% 이상, Al2O3: 45% 이상, Fe2O3: 1.0% 이하, CaO : 1.0% 이하, Ig-Loss(기타) : 1.0% 이하로 구성된다.That is, the main components of the ceramic paper 14 are SiO 2 : 50% or more, Al 2 O 3 : 45% or more, Fe 2 O 3 : 1.0% or less, CaO: 1.0% or less, Ig-Loss (others) ): It is composed of 1.0% or less.

세라믹페이퍼(14)의 성분 구성을 이와 같이 한정하는 이유는 이형재인 오일페이퍼(13)를 사이에 두고 충분한 접착력을 가질 수 있도록 하기 위한 성분조성의범위이다.The reason for limiting the component structure of the ceramic paper 14 in this way is the range of the component composition for making it possible to have sufficient adhesive force between the oil paper 13 which is a mold release material.

시험결과, 가장 바람직한 성분조성비는 SiO2: 51.30%, Al2O3: 47.15%, Fe2O3: 0.15%, CaO : 0.06%, Ig-Loss(기타) : 0.87%일 경우였다.As a result, the most preferable component composition ratio was SiO 2 : 51.30%, Al 2 O 3 : 47.15%, Fe 2 O 3 : 0.15%, CaO: 0.06%, Ig-Loss (other): 0.87%.

본 고안 죠인트시이트(12')의 형성과정은 기본재인 죠인트시이트(12)의 양면에 각각 상기 성분조성 범위 내의 값을 가지는 세라믹페이퍼(14)를 적층시키고, 이어 기존의 오일페이퍼(13)를 상기 각 세라믹페이퍼(14)의 상면에 적층시킨 후 압착하여 형성된다.In the process of forming the joint sheet 12 ′ of the present invention, the ceramic paper 14 having the value within the composition range is laminated on both surfaces of the joint sheet 12 as a base material, and then the existing oil paper 13 is replaced with the above. It is formed by laminating on the upper surface of each ceramic paper 14 and pressing.

이러한 구조로 이루어진 죠인트시이트는 다음과 같이 사용된다.A joint sheet composed of such a structure is used as follows.

도 5에서, 본 고안의 죠인트시이트(12')는 주조작업을 위해 열간재사용 턴디쉬의 카세트 슬라이딩노즐(5) 하부측 하부노즐(11)과 침지노즐(6) 조립전에 사용된다.In FIG. 5, the joint sheet 12 'of the present invention is used before assembling the lower nozzle 11 and the immersion nozzle 6 of the lower side of the cassette sliding nozzle 5 of the hot reuse tundish for casting operation.

즉, 예열이 완료된 침지노즐(6) 상부에 양면 세라믹페이퍼(14)가 부착된 죠인트시이트(12')를 올려놓으면 기본재인 중앙의 죠인트시이트(12)가 열기로 인해 열간상태가 되더라도 세라믹페이퍼(14)로 인해 오일페이퍼(13)가 타는 것을 방지하게 된다.That is, when the joint sheet 12 'having the double-sided ceramic paper 14 attached to the upper surface of the immersion nozzle 6 has been preheated, the ceramic paper sheet may be hot even when the joint sheet 12 in the center is opened due to heat. 14) prevents the oil paper 13 from burning.

더구나, 침지노즐(6)이 하부노즐(11)과 조립되어질 때 죠인트시이트(12)가 직접 열간상태의 침지노즐(6)과 접촉되지 않으므로 본 고안의 죠인트시이트(12')는 폭열현상을 억제시킴은 물론 조립시 압착되어 눌려지면서 하부노즐(11) 아래에 침지노즐(6)이 단단히 부착되어 에어갭(AIR GAP) 발생을 차단하여 외부공기의 유입을근절시키게 되므로 주조중 실링역할을 충실히 수행하게 된다.Moreover, when the immersion nozzle 6 is assembled with the lower nozzle 11, the joint sheet 12 does not come into direct contact with the immersion nozzle 6 in a hot state, so the joint sheet 12 'of the present invention suppresses the thermal phenomena. As well as squeezing and pressing during assembly, the immersion nozzle 6 is firmly attached under the lower nozzle 11 to block air gaps to eradicate the inflow of external air, thus faithfully performing the sealing role during casting. Done.

특히, 상기 조성분포와 같이 세라믹페이퍼(14)은 실리카(SiO2)와 알루미나(Al2O3)를 주성분으로 하기 때문에 기본재인 죠인트시이트(12)가 예열된 침지노즐(6)에 직접 접촉되는 것을 방지하므로 폭열현상을 극소화시킴은 물론 조립완료 후에는 열에 의해 경화되면서 실링성을 더욱 향상시키게 된다.In particular, since the ceramic paper 14 is composed of silica (SiO 2 ) and alumina (Al 2 O 3 ) as the main components, the joint sheet 12, which is a base material, is in direct contact with the preheated immersion nozzle 6. It prevents the thermal explosion phenomenon, and of course, after assembling is completed, the sealing property is further improved while being hardened by heat.

하기한 표 1은 연주공장에서 열간재사용 턴디쉬를 사용하는 개소에 본 고안의 죠인트시이트(12')를 부착하여 사용한 전,후의 조업트러블 발생현황 통계를 대비한 것이다.Table 1 below is a comparison of the operational trouble occurrence statistics before and after the use of the joint sheet (12 ') of the present invention attached to the place using hot reuse tundish in the performance factory.

발생구분Occurrence 기존의 죠인트시이트Conventional Joint Sheet 양면 세라믹페이퍼가 부착된 본 고안의 죠인트시이트Joint sheet of the present invention with double-sided ceramic paper 침지노즐과 하부노즐 사이로 에어혼입 발생건Air mixing between immersion nozzle and lower nozzle 3.5건/월3.5 cases / month 없음none 침지노즐과 하부노즐 사이로 용강이 유출되어 주조중단한 건The casting stop due to the leakage of molten steel between the immersion nozzle and the lower nozzle 2건/월2 cases / month 없음none

상기 표 1을 통해 알 수 있듯이, 본 고안의 죠인트시이트를 사용해 본 결과 침지노즐과 하부노즐 사이로 에어혼입이 원천 차단되고 주조중 용강의 유출사고를 방지하여 주조중단으로 인한 손해를 극소화시킴을 확인할 수 있었고, 또한 실링성이 우수하여 일반턴디쉬는 물론 열간재사용 턴디쉬에서도 그 작업성이 매우 우수함을 확인할 수 있었다.As can be seen from Table 1, as a result of using the joint sheet of the present invention, air mixing is blocked between the immersion nozzle and the lower nozzle, and the damage caused by the casting stop can be minimized by preventing the leakage accident of molten steel during casting. In addition, the sealing performance was excellent, it was confirmed that the workability is excellent in the general tundish as well as the hot reuse tundish.

이상에서 상세히 설명한 바와 같이, 본 고안은 다음과 같은 효과를 제공한다.As described in detail above, the present invention provides the following effects.

첫째, 본 고안의 죠인트시이트는 실링성이 우수하여 침지노즐과 하부노즐 사이로의 에어혼입이 없어 주조대상 용강의 품질이 현저히 향상되는 장점을 제공한다.First, the joint sheet of the present invention has an excellent sealing property, and thus, there is no air mixing between the immersion nozzle and the lower nozzle, thereby providing an advantage of significantly improving the quality of the molten steel to be cast.

둘째, 본 고안의 죠인트시이트는 실링성이 우수하여 용강의 유출사고를 방지할 수 있으므로 작업의 안전성 확보는 물론 생산성이 급격히 향상되는 장점을 제공한다.Second, the joint sheet of the present invention has an excellent sealing property to prevent the accident of leakage of molten steel, thus providing the advantages of ensuring the safety of work and rapidly improving productivity.

Claims (1)

턴디쉬(4)와 주형(7) 사이에 설치된 하부노즐(11)과 침지노즐(6) 사이에 개재되는 죠인트시이트(12)의 양면에 SiO2: 50% 이상, Al2O3: 45% 이상, Fe2O3: 1.0% 이하, CaO : 1.0% 이하, 기타 : 1.0% 이하의 성분조성을 갖고 부착된 세라믹페이퍼(14)와;SiO 2 : 50% or more, Al 2 O 3 : 45% on both sides of the joint sheet 12 interposed between the lower nozzle 11 and the immersion nozzle 6 installed between the tundish 4 and the mold 7. Above, Fe 2 O 3 : 1.0% or less, CaO: 1.0% or less, other: 1.0% or less of the ceramic paper (14) attached with a component composition; 상기 세라믹페이퍼(14)의 각 상면에 부착된 이형재인 오일페이퍼(13)를 포함하여 구성되는 것을 특징으로 하는 양면 세라믹페이퍼 부착 죠인트시이트.Joint sheet with a double-sided ceramic paper, characterized in that it comprises an oil paper (13) which is a release material attached to each upper surface of the ceramic paper (14).
KR2020010014071U 2001-05-14 2001-05-14 Both ceramic paper sticking joint sheet KR200248823Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020010014071U KR200248823Y1 (en) 2001-05-14 2001-05-14 Both ceramic paper sticking joint sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020010014071U KR200248823Y1 (en) 2001-05-14 2001-05-14 Both ceramic paper sticking joint sheet

Publications (1)

Publication Number Publication Date
KR200248823Y1 true KR200248823Y1 (en) 2001-11-16

Family

ID=73065582

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020010014071U KR200248823Y1 (en) 2001-05-14 2001-05-14 Both ceramic paper sticking joint sheet

Country Status (1)

Country Link
KR (1) KR200248823Y1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101517210B1 (en) * 2013-12-11 2015-05-04 조선내화(주) High heat-resistant ceramic joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101517210B1 (en) * 2013-12-11 2015-05-04 조선내화(주) High heat-resistant ceramic joint

Similar Documents

Publication Publication Date Title
CA1141159A (en) Moulded composite refractory parts
EP2790856B2 (en) Nozzle assembly comprising first and second elements being coupled to one another in a sliding translation relationship and a sealing member made of thermally intumescent material, refractory element, method for producing a refractory element, method for coupling two refractory elements
KR200248823Y1 (en) Both ceramic paper sticking joint sheet
KR100647858B1 (en) Binding structure of refractory sleeve for inner hole of nozzle for continuous casting
US4386765A (en) Composite moulded refractory articles
US4702460A (en) Reversible refractory plate in sliding closure unit and method for use thereof
AU6569394A (en) Slide gate valve having a cementless joint between the valve and a metallurgical vessel
US4248815A (en) Process for the manufacture of gate valves for closure devices having a pouring nozzle and similar objects
EP0817692B1 (en) Process for reusing slide gate plates and plate for this closure
KR102568055B1 (en) Ultra-thin aluminum-based steel flow groove
CN210648470U (en) High-temperature sealing device for connection between ladle down nozzle and slide plate nozzle
KR100450438B1 (en) sealing material found between of lower nozzle & submerged entry nozzle for continuous casting
JPH04270037A (en) Nozzle for continuous casting
WO2008116055A1 (en) Crack resistant plate
CA2227535C (en) Crack resistant valve plate assembly for a molten metal slide gate valve
CN221047297U (en) Improved steel ladle hydraulic mechanism sliding plate brick
KR100516461B1 (en) Tundish flux having exothermic property
KR950008974Y1 (en) Device for prevention slag mixing of sheet casting
JPS6032929Y2 (en) Plate bricks for sliding gates for molten metal
JP2003025060A (en) Combined sealing member in nozzle joining part
GB1474221A (en) Process for manufacturing partially clad blocks or slabs
CN113000830A (en) Safe refractory molten steel flow controller
KR20030043157A (en) lower nozzle for molden steel casting
JPH06106307A (en) Method for sealing dummy bar head in continuous casting
KR20150020944A (en) Twin roll strip caster

Legal Events

Date Code Title Description
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20020903

Year of fee payment: 3

LAPS Lapse due to unpaid annual fee