JPH06629A - Hollow refractory for molten metal container with induction heating device - Google Patents
Hollow refractory for molten metal container with induction heating deviceInfo
- Publication number
- JPH06629A JPH06629A JP3045709A JP4570991A JPH06629A JP H06629 A JPH06629 A JP H06629A JP 3045709 A JP3045709 A JP 3045709A JP 4570991 A JP4570991 A JP 4570991A JP H06629 A JPH06629 A JP H06629A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- hollow refractory
- refractory
- alumina
- induction heating
- 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
Links
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- Compositions Of Oxide Ceramics (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
(57)【要約】
【目的】 本発明は、電磁誘導により溶鋼の加熱を行う
連続鋳造用タンディッシュに用いる耐蝕性、耐溶損性に
優れた中空耐火物である。
【構成】 アルミナ５０〜９０％、ＭｇＯ・Ａｌ2Ｏ3系
スピネル１０〜５０％からなる耐火物により、連続鋳造
用タンディッシュに設けた電磁誘導加熱装置の溶鋼流通
溝を構成する。また、上記の配合に更にＣａＯ質原料を
外掛けで２〜１５％配合して成形した中空耐火物により
溶鋼流通溝を構成する。
【効果】 従来知られている同用途の中空耐火物に比
べ、耐用寿命を５倍に延長することができる。
(57) [Summary] [Object] The present invention is a hollow refractory having excellent corrosion resistance and melting resistance, which is used in a tundish for continuous casting in which molten steel is heated by electromagnetic induction. [Structure] A refractory material composed of 50 to 90% alumina and 10 to 50% MgO.Al 2 O 3 based spinel constitutes a molten steel flow groove of an electromagnetic induction heating device provided in a tundish for continuous casting. Further, a molten refractory flow groove is formed by a hollow refractory formed by externally mixing CaO-based raw material with 2 to 15% in addition to the above composition. [Effect] Compared to the conventionally known hollow refractory for the same purpose, the service life can be extended five times.
Description
【０００１】[0001]
【産業上の利用分野】本発明は誘導加熱装置の溶融金属
通過用耐火物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refractory for passing molten metal of an induction heating device.
【０００２】[0002]
【従来の技術】溶融金属容器に誘導加熱装置を設け溶融
金属を連続的に加熱する方法がある。近年、この方法は
連続鋳造用タンディッシュ（以下タンディッシュと略
す）で盛んに用いられている。このタンディッシュは、
低周波電流を流す鉄心とその周囲を溶融金属の通過を可
能ならしめる中空耐火物で構成されている。 加熱の原
理は、鉄心に一次コイルを巻き交流電流を印加すること
により中空耐火物内を通過する溶融金属が二次コイルと
なり、ファラディの電磁誘導の法則に従って誘導電流ｉ
が発生し、ジュールｉ2Ｒにより溶融金属が加熱される
ものである。特開昭６１−３８７５４号公報で溝タイプ
の誘導加熱方法が開示されている。これに用いる溶融金
属容器は中間に貫通する空間を設け、その空間に誘導コ
イルおよび鉄心を通す構造である。この構造は図３
（ａ）、（ｂ）、（ｃ）、（ｄ）に示すように、タンデ
ィッシュ９を取鍋３から溶融金属を供給される受湯室１
と浸漬ノズル８を通してモールド１０に注入される出湯
室２に分割し、その間を複数の中空耐火物７で接合する
ことによって溶融金属が流通できる溝を形成させるもの
である。2. Description of the Related Art There is a method in which an induction heating device is provided in a molten metal container to continuously heat the molten metal. In recent years, this method has been extensively used in tundish for continuous casting (hereinafter abbreviated as tundish). This tundish
It consists of an iron core that carries low-frequency current and a hollow refractory that allows molten metal to pass through it. The principle of heating is that by winding a primary coil around an iron core and applying an alternating current, the molten metal that passes through the hollow refractory becomes a secondary coil, and the induction current i follows the Faraday's law of electromagnetic induction.
Occurs and the molten metal is heated by the joule i 2 R. Japanese Patent Laid-Open No. 61-38754 discloses a groove type induction heating method. The molten metal container used for this is provided with a space penetrating therethrough, and the induction coil and the iron core are passed through the space. This structure is shown in Figure 3.
As shown in (a), (b), (c) and (d), a hot water receiving chamber 1 to which molten metal is supplied from a ladle 3 of a tundish 9.
The molten metal is poured into the mold 10 through the dipping nozzle 8 and is divided into two parts, and a plurality of hollow refractories 7 are joined to form a groove through which the molten metal can flow.
【０００３】そして、複数の中空耐火物７を設けたこと
によって生じた空間６に一次コイル４を巻いた鉄心を貫
通させることによって二次コイルに相当する通電ループ
が溝１１の中の溶融金属を通して形成される。Then, by passing the iron core wound with the primary coil 4 through the space 6 created by providing the plurality of hollow refractories 7, a current-carrying loop corresponding to the secondary coil passes through the molten metal in the groove 11. It is formed.
【０００４】この中空耐火物７には、誘導電流発生防止
を最重視し、固有抵抗がほぼ無限に大きいハイアルミナ
系キャスタブルのプレキャスト品が使用され、これに耐
スポール性を重視し炭素含有量５〜３５％あるいは炭化
珪素含有量５〜２０％の材質が用いられている（特開昭
６３−１６８２５８号公報）。この材質は連続鋳造時間
が短く、鋳造する溶融金属中の酸素やＭｎＯ等が少ない
場合優れた耐用性を示すものである。For this hollow refractory 7, a high-alumina castable precast product is used, which places the highest priority on the prevention of induced current generation and has a substantially infinite specific resistance. .About.35% or a material having a silicon carbide content of 5 to 20% is used (JP-A-63-168258). This material exhibits excellent durability when the continuous casting time is short and the amount of oxygen, MnO, etc. in the molten metal to be cast is small.
【０００５】ここで、中空耐火物７には具備特性とし
て、耐溶損性と溶融金属中の介在物等の付着および、成
長を防止する耐スポーリング性が要求される。耐スポー
リング性は中空耐火物７に金属ファイバーを２〜５％添
加することで亀裂を微細にすることができることと、周
囲の不定形耐火物１２を充分に施工することで亀裂が発
生しても、この亀裂から溶融金属が中空耐火物７外に洩
れないようにすることができる。 従って中空耐火物７
は、耐溶損性と溶融金属中の介在物等の付着防止が重要
になり、これらの問題の発生は溶融金属の成分と密接な
関係にありマンガン、酸素、シリコン等の多い場合は溶
損傾向に、アルミ等が多い場合は付着傾向になる。Here, the hollow refractory 7 is required to have melting resistance and spalling resistance to prevent the inclusion and growth of inclusions in the molten metal. As for the spalling resistance, it is possible to make the cracks fine by adding 2 to 5% of metal fibers to the hollow refractory 7 and to sufficiently generate the surrounding irregular refractory 12 to cause the cracks. Also, it is possible to prevent the molten metal from leaking out of the hollow refractory 7 through this crack. Therefore hollow refractories 7
Is important for melting resistance and prevention of inclusions of inclusions in the molten metal.The occurrence of these problems is closely related to the components of the molten metal, and when there are many manganese, oxygen, silicon, etc., melting tendency tends to occur. In addition, if there is a large amount of aluminum, etc., it tends to adhere.
【０００６】[0006]
【発明が解決しようとする課題】中空耐火物７は溶損が
大きい場合は消失し、溶融金属が鉄心５を貫通させるた
めの空間６に洩れ出す問題が、また介在物等の付着、成
長は中空耐火物７の溝１１が狭められ、溶融金属の通過
量が減少したり、通過できなくなる問題がある。前記特
開昭６３−１６８２５８号公報で開示されている炭素含
有量５〜３５％のハイアルミナキャスタブルは溶融金属
中に含まれるアルミナ等の高融点非金属介在物の付着
が、また炭化珪素含有量５〜２０％のハイアルミナキャ
スタブルは溶融金属中の酸素により炭化珪素が酸化され
ることにより溶損するという問題がある。この２材質に
は、実施例に示すＳｉＯ2の配合が２５％以上ありこれ
が溶融金属中のＭｎ，Ｃａ，Ａｌ等に還元されることも
高い耐用性を得られない理由の一つである。The hollow refractory 7 disappears when the melting loss is large, and the molten metal leaks into the space 6 for penetrating the iron core 5, and the inclusion and growth of inclusions and the like There are problems that the groove 11 of the hollow refractory 7 is narrowed, the amount of molten metal passing through is reduced, or the molten metal cannot pass through. The high-alumina castable having a carbon content of 5 to 35% disclosed in JP-A-63-168258 has a high melting point of non-metallic inclusions such as alumina contained in the molten metal and a silicon carbide content. 5 to 20% of high-alumina castable has a problem that silicon carbide is oxidized by oxygen in the molten metal and melts. The content of SiO 2 shown in the examples is 25% or more in these two materials, and this is reduced to Mn, Ca, Al, etc. in the molten metal, which is one of the reasons why high durability cannot be obtained.
【０００７】[0007]
【課題を解決するための手段】本発明は、かかる中空耐
火物７が溶融金属成分の影響による、溶損や介在物の付
着の問題を解決するものである。その骨子は耐溶損性と
して、ＭｇＯ・Ａｌ2Ｏ3系スピネル（以下スピネルと略
す）を特定の割合で組み合わせ、付着防止はこれにＣａ
Ｏ原料を特定の割合で配合するものであり、炭素、炭化
珪素、ＳｉＯ2を用いない中空耐火物７を提供するもの
である。The present invention solves the problems of melting damage and adhesion of inclusions due to the influence of molten metal components in the hollow refractory material 7. The skeleton is composed of MgO.Al 2 O 3 based spinel (hereinafter abbreviated as "spinel") in a specific ratio as melting resistance, and Ca is used for adhesion prevention.
An O raw material is blended in a specific ratio to provide a hollow refractory 7 which does not use carbon, silicon carbide or SiO 2 .
【０００８】[0008]
【実施例および作用】中空耐火物用の主原料のアルミナ
は耐溶損性と容積安定性（耐スポーリング対策）の役割
を持ち、 副原料のスピネルは溶融金属との反応を抑制
する役割を持つ。両者の配合割合は図１に示すように、
アルミナが５０％未満では耐溶損性に劣り、９０％を超
えるとスピネルの配合量が減少し溶融金属との反応が進
む。従って、アルミナが５０％〜９０％、スピネルが１
０％〜５０％の配合が中空耐火物の適正範囲であり、望
ましい最適値はアルミナ７０％〜８５％、スピネル１５
％〜３０％にある。 アルミナ原料は焼結アルミナ、電
融アルミナ、ばん土けつ岩、ボーキサイト、シリマナイ
トなどの中から一種もしくは二種以上の配合を耐溶損性
と容積安定性を満たす条件で決定すれば良い。またスピ
ネル原料は電融スピネル、焼結スピネルのいずれか、両
者の組み合わせたもので構成されるが、ＭｇＯ／Ａｌ2
Ｏ3はモル比で０．７〜１．３／１．３〜０．７の範囲
のものを用いれば溶融金属との反応を抑制に効果があ
る。[Examples and Actions] Alumina, which is the main raw material for hollow refractories, has a role of melting resistance and volume stability (anti-spalling resistance), and spinel, which is an auxiliary raw material, has a role of suppressing reaction with molten metal. . The mixing ratio of both is as shown in FIG.
If the content of alumina is less than 50%, the melting resistance is poor, and if it exceeds 90%, the amount of spinel compounded decreases and the reaction with the molten metal proceeds. Therefore, alumina is 50% to 90% and spinel is 1%.
A blending ratio of 0% to 50% is a proper range of the hollow refractory material, and the desired optimum values are 70% to 85% alumina and 15% spinel.
% To 30%. As the alumina raw material, one kind or two or more kinds of compounds selected from sintered alumina, fused alumina, shale shale, bauxite, sillimanite, etc. may be determined under conditions satisfying the corrosion resistance and the volume stability. The spinel raw material Fused spinel, either sintered spinel, is composed of a combination of both, MgO / Al 2
Use of O 3 in a molar ratio of 0.7 to 1.3 / 1.3 to 0.7 is effective in suppressing the reaction with the molten metal.
【０００９】このようにして配合した原料で中空耐火物
７を製作し、これを誘導加熱タンディッシュ９に使用し
た結果、連続操業１０時間を６回繰り返し使用（合計６
０ヒート）する実績を得ることができた。この実績は中
空耐火物への非金属介在物の付着の少ない溶融金属で操
業したものであり、付着の多い溶融金属ではこの実績の
約１／３に耐用回数が減少する。A hollow refractory material 7 was produced from the raw materials thus blended and used for an induction heating tundish 9. As a result, continuous operation for 10 hours was repeated 6 times (total 6 times).
We were able to obtain a record of zero heat. This track record is based on the operation of molten metal with a small amount of non-metallic inclusions adhering to the hollow refractory, and with molten metal with a large amount of adherence, the service life is reduced to about 1/3 of this track record.
【００１０】溶融金属中のアルミの多い操業では高融点
の非金属介在物が中空耐火物７の溝１１内に付着し溝１
１の内径が縮小され、鋳造回数がわずか５ヒートで使用
出来なくなる場合もある。In an operation with a large amount of aluminum in the molten metal, a non-metallic inclusion having a high melting point adheres to the inside of the groove 11 of the hollow refractory 7 and the groove 1
In some cases, the inner diameter of No. 1 is reduced, and the casting cannot be used after only 5 heats.
【００１１】これに対し、付着物の融点を低下させ、中
空耐火物７との付着力を弱め剥離させ流出させる方法と
して、中空耐火物７にアルミとの間で１２００℃の低融
物を生成するＣａＯを配合し、実験を行った。この実験
で図２に示すようにアルミナ５０％〜９０％、スピネル
１０％〜５０％の耐火物にＣａＯの添加量を増していく
と付着物は減少するが、溶損量が増加する関係を導き出
した。On the other hand, as a method of lowering the melting point of the deposit and weakening the adhesive force with the hollow refractory 7 to separate and flow it out, a low-melting substance of 1200 ° C. is produced between the hollow refractory 7 and aluminum. An experiment was performed by adding CaO to be mixed. In this experiment, as shown in FIG. 2, when CaO is added to a refractory material having 50% to 90% alumina and 10% to 50% spinel, the amount of deposits decreases, but the amount of melting loss increases. Derived.
【００１２】[0012]
【実施例】この結果を基に、ＣａＯをアルミナ５０〜９
０ｗｔ％およびＭｇＯ・Ａｌ2Ｏ3系スピネル１０〜５０
ｗｔ％の混合物に外掛け２％〜２０％配合した中空耐火
物を試作し連続鋳造用誘導加熱タンディッシュ９で実用
試験を実施した。 この結果、表１Ａ，Ｂに示すように
ＣａＯ原料をＣａＯ（換算）で２％〜１５％の間で使用
が可能であり、付着防止と耐溶損性を同時に満足する望
ましい最適値は６％〜８％であることを見い出した。Example: Based on this result, CaO was added to alumina 50 to 9
0 wt% and MgO.Al 2 O 3 based spinel 10 to 50
A hollow refractory was prepared by mixing 2% to 20% of the mixture in a wt% mixture, and a practical test was conducted on an induction heating tundish 9 for continuous casting. As a result, as shown in Tables 1A and 1B, the CaO raw material can be used in the range of 2% to 15% in terms of CaO (converted), and the desirable optimum value that simultaneously satisfies the adhesion prevention and the melting resistance is 6% to It was found to be 8%.
【００１３】この原料で中空耐火物７を製作し、 誘導
加熱タンディッシュ９に使用した結果、アルミ成分の多
い溶融金属を含む連続操業１０時間を６回繰り返し使用
（合計６０ヒート）する実績を得ることができた。As a result of producing a hollow refractory 7 from this raw material and using it for an induction heating tundish 9, a continuous operation including molten metal containing a large amount of aluminum components for 10 hours was repeated 6 times (total 60 heats). I was able to.
【００１４】[0014]
【表１Ａ】 [Table 1A]
【００１５】[0015]
【表１Ｂ】 [Table 1B]
【００１６】ＣａＯ原料としては、ＣａＣＯ3、Ｃａ
（ＯＨ)2、ＣａＯ、ＣａＯ−Ａｌ2Ｏ3系化合物（３Ｃａ
Ｏ・Ａｌ2Ｏ3、１２ＣａＯ・７Ａｌ2Ｏ3、ＣａＯ・Ａｌ
2Ｏ3、ＣａＯ・２Ａｌ2Ｏ3、ＣａＯ・６Ａｌ2Ｏ3）があ
り、本発明はこれらから選ばれる１種または２種以上使
用できる。As CaO raw materials, CaCO 3 , Ca
(OH) 2, CaO, CaO -Al 2 O 3 compound (3Ca
O ・ Al 2 O 3 , 12CaO ・ 7Al 2 O 3 , CaO ・ Al
2 O 3 , CaO · 2Al 2 O 3 , CaO · 6Al 2 O 3 ), and the present invention can use one or more selected from these.
【００１７】[0017]
【発明の効果】以上説明したように、本発明は中空耐火
物７の材質としてアルミナとスピネルを適正配合するこ
とで耐用性を従来用いていたアルミナ−ＳｉＯ2−（炭
素または炭化珪素）系材質に対し約５倍にすることがで
き、またこの材質にＣａＯを添加することで溶融金属中
の高融点、非金属介在物の付着を耐溶損性を確保しなが
ら防止する効果が得られた。As described above, according to the present invention, the hollow refractory 7 is made of alumina-SiO 2- (carbon or silicon carbide) -based material whose durability has been conventionally used by properly mixing alumina and spinel. However, by adding CaO to this material, the effect of preventing adhesion of high melting points and non-metallic inclusions in the molten metal while ensuring melting resistance was obtained.
【図１】本発明に係わるアルミナとスピネルの配合と溶
融金属に対する溶損および浸透の関係、FIG. 1 is a relationship between the blending of alumina and spinel according to the present invention and the melting loss and penetration of molten metal,
【図２】本発明に係わるアルミナ・スピネル材質にＣａ
Ｏ配合率を変えた場合の溶融金属に対する溶損および介
在物付着状況を示す。[Fig. 2] Alumina spinel material according to the present invention is Ca
The melting loss and the inclusion adhesion of inclusions to the molten metal when the O compounding ratio is changed are shown.
【図３】（ａ）：本発明に係わる中空耐火物の部位を示
すもので、誘導加熱タンディッシュの要部断面図、 （ｂ）：図３ａに於けるＢ断面、 （ｃ）：図３ａの平面図、 （ｄ）：中空耐火物の拡大断面図。FIG. 3 (a) is a sectional view of a main part of an induction heating tundish, showing a part of a hollow refractory material according to the present invention, (b): B section in FIG. 3a, (c): FIG. 3a. (D): Enlarged sectional view of the hollow refractory material.
１ 受湯室 ２ 出湯室 ３ 取鍋 ４ 一次コイル ５ 取鍋ノズル ６ 空間、 ７ 中空耐火物 ８ 浸漬ノズル ９ タンディッシュ １０ モールド １１ 溝 １２ 不定形耐火物。 1 Hot water chamber 2 Hot water chamber 3 Ladle 4 Primary coil 5 Ladle nozzle 6 Space, 7 Hollow refractory 8 Immersion nozzle 9 Tundish 10 Mold 11 Groove 12 Amorphous refractory.
【手続補正書】[Procedure amendment]
【提出日】平成４年１２月２日[Submission date] December 2, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明に係わるアルミナとスピネルの配合と溶
融金属に対する溶損および浸透の関係、FIG. 1 is a relationship between the blending of alumina and spinel according to the present invention and the melting loss and penetration of molten metal,
【図２】本発明に係わるアルミナ・スピネル材質にＣａ
Ｏ配合率を変えた場合の溶融金属に対する溶損および介
在物付着状況を示す。[Fig. 2] Alumina spinel material according to the present invention is Ca
The melting loss and the inclusion adhesion of inclusions to the molten metal when the O compounding ratio is changed are shown.
【図３Ａ】（ａ）：本発明に係わる中空耐火物の部位を
示すもので、誘導加熱タンディッシュの要部断面図、 （ｂ）：図３ａに於けるＢ断面、3A is a cross-sectional view of a main part of an induction heating tundish, showing a part of a hollow refractory material according to the present invention, and FIG. 3B is a B cross-section in FIG. 3A.
【図３Ｂ】（ｃ）：図３ａの平面図、 （ｄ）：中空耐火物の拡大断面図。3B (c): plan view of FIG. 3a, (d): enlarged cross-sectional view of a hollow refractory material.
【符号の説明】 １ 受湯室 ２ 出湯室 ３ 取鍋 ４ 一次コイル ５ 取鍋ノズル ６ 空間、 ７ 中空耐火物 ８ 浸漬ノズル ９ タンディッシュ １０ モールド １１ 溝 １２ 不定形耐火物。[Explanation of Codes] 1 Hot water chamber 2 Hot water chamber 3 Ladle 4 Primary coil 5 Ladle nozzle 6 Space, 7 Hollow refractory material 8 Immersion nozzle 9 Tundish 10 Mold 11 Groove 12 Amorphous refractory material.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原田 輝男 北海道室蘭市仲町12番地 新日本製鐵株式 会社室蘭製鐵所内 (72)発明者 仲村 誠 兵庫県高砂市荒井町新浜１−３−１ ハリ マセラミック株式会社内 (72)発明者 後藤 幸彦 兵庫県高砂市荒井町新浜１−３−１ ハリ マセラミック株式会社内 (72)発明者 本間 光昭 兵庫県高砂市荒井町新浜１−３−１ ハリ マセラミック株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Teruo Harada 12 Nakamachi, Muroran, Hokkaido Shin Nippon Steel Co., Ltd. Muroran Works (72) Inventor Makoto Nakamura 1-3-1 Niihama, Arai-cho, Takasago, Hyogo Ceramic Co., Ltd. (72) Inventor Yukihiko Goto 1-3-1 Niihama, Arai-cho, Takasago, Hyogo Prefecture Harima Ceramic Co., Ltd. (72) Inventor Mitsuaki Honma 1-3-1 Niihama, Arai-cho, Takasago, Hyogo Harima Ceramic Co., Ltd. In the company
Claims (2)
・Ａｌ2Ｏ3系スピネル１０〜５０ｗｔ％からなる誘導加
熱装置付溶融金属容器用中空耐火物。1. Alumina 50-90 wt% and MgO
-A hollow refractory for a molten metal container with an induction heating device, which comprises 10 to 50 wt% of Al 2 O 3 based spinel.
・Ａｌ2Ｏ3系スピネル１０〜５０ｗｔ％からなる混合物
に、ＣａＯ質原料をＣａＯ換算で外掛け２〜１５ｗｔ％
加えて構成した誘導加熱装置付溶融金属容器用中空耐火
物。2. Alumina 50-90 wt% and MgO
・2 to 15 wt% of CaO-based raw material is added to a mixture of 10 to 50 wt% of Al 2 O 3 based spinel in terms of CaO
In addition, a hollow refractory for molten metal containers with an induction heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3045709A JPH06629A (en) | 1991-02-20 | 1991-02-20 | Hollow refractory for molten metal container with induction heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3045709A JPH06629A (en) | 1991-02-20 | 1991-02-20 | Hollow refractory for molten metal container with induction heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06629A true JPH06629A (en) | 1994-01-11 |
Family
ID=12726882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3045709A Pending JPH06629A (en) | 1991-02-20 | 1991-02-20 | Hollow refractory for molten metal container with induction heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06629A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008264834A (en) * | 2007-04-20 | 2008-11-06 | Jfe Steel Kk | Tundish for continuous casting |
| CN102836978A (en) * | 2012-09-06 | 2012-12-26 | 上海宝明耐火材料有限公司 | Steel flow passage assembly for tundish induction heating and production method thereof |
| JP2015221456A (en) * | 2014-05-23 | 2015-12-10 | 新日鐵住金株式会社 | Weir refractory construction method for induction heating type tundish and weir refractory repair method for weir refractory |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6060985A (en) * | 1983-09-08 | 1985-04-08 | 新日本製鐵株式会社 | Refractory composition for ladle lining |
| JPS6347539A (en) * | 1986-08-18 | 1988-02-29 | Mitsubishi Heavy Ind Ltd | High change gear ratio planetary gear |
| JPS63171256A (en) * | 1987-04-23 | 1988-07-15 | Nippon Steel Corp | Refractories for molten metal channel of intermediate channel type induction heating tundish |
| JPH01197370A (en) * | 1988-01-29 | 1989-08-09 | Daiichi Taika Renga Kk | Monolithic refractory for lining molten metal vessel |
| JPH01264976A (en) * | 1988-04-13 | 1989-10-23 | Nippon Steel Corp | Flame spraying material |
| JPH026373A (en) * | 1988-06-24 | 1990-01-10 | Kawasaki Refract Co Ltd | Cast amorphous refractory |
-
1991
- 1991-02-20 JP JP3045709A patent/JPH06629A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6060985A (en) * | 1983-09-08 | 1985-04-08 | 新日本製鐵株式会社 | Refractory composition for ladle lining |
| JPS6347539A (en) * | 1986-08-18 | 1988-02-29 | Mitsubishi Heavy Ind Ltd | High change gear ratio planetary gear |
| JPS63171256A (en) * | 1987-04-23 | 1988-07-15 | Nippon Steel Corp | Refractories for molten metal channel of intermediate channel type induction heating tundish |
| JPH01197370A (en) * | 1988-01-29 | 1989-08-09 | Daiichi Taika Renga Kk | Monolithic refractory for lining molten metal vessel |
| JPH01264976A (en) * | 1988-04-13 | 1989-10-23 | Nippon Steel Corp | Flame spraying material |
| JPH026373A (en) * | 1988-06-24 | 1990-01-10 | Kawasaki Refract Co Ltd | Cast amorphous refractory |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008264834A (en) * | 2007-04-20 | 2008-11-06 | Jfe Steel Kk | Tundish for continuous casting |
| CN102836978A (en) * | 2012-09-06 | 2012-12-26 | 上海宝明耐火材料有限公司 | Steel flow passage assembly for tundish induction heating and production method thereof |
| JP2015221456A (en) * | 2014-05-23 | 2015-12-10 | 新日鐵住金株式会社 | Weir refractory construction method for induction heating type tundish and weir refractory repair method for weir refractory |
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