JPH06277803A - Apparatus for continuously casting metal - Google Patents
Apparatus for continuously casting metalInfo
- Publication number
- JPH06277803A JPH06277803A JP7037293A JP7037293A JPH06277803A JP H06277803 A JPH06277803 A JP H06277803A JP 7037293 A JP7037293 A JP 7037293A JP 7037293 A JP7037293 A JP 7037293A JP H06277803 A JPH06277803 A JP H06277803A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- casting
- molten metal
- lubricant
- magnetic field
- 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.)
- Granted
Links
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- Continuous Casting (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、金属の連続鋳造に際
し、操業の簡素化、鋳造の高速化、および鋳片の表面性
状の改善を実現するための連続鋳造装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous casting apparatus for simplifying the operation, speeding up the casting, and improving the surface quality of a slab in the continuous casting of metal.
【０００２】[0002]
【従来の技術】連続鋳造においてパウダーと呼ばれる粉
末あるいは顆粒状の潤滑剤を鋳型内のメニスカスを含む
溶融金属上に投入して操業を行っている。パウダーの一
部は溶融して鋳型と鋳片との間に流入し、焼き付きの防
止、両者間の潤滑作用、および熱緩和等の役割を果して
いる。しかし、鋳造条件に見合った流入量を得るには各
々の鋳造条件に適した物性の潤滑剤を用いることが必要
となり、鋳込み初期と定常期で潤滑剤を変える等の使い
分けを行ったり、高速鋳造時には特殊な潤滑剤を用いる
等の工夫が行われている。2. Description of the Related Art In continuous casting, powdery or granular lubricant called powder is put into molten metal containing meniscus in a mold for operation. Part of the powder melts and flows between the mold and the slab, and plays a role of preventing seizure, a lubricating action between the two, and thermal relaxation. However, in order to obtain the inflow amount that matches the casting conditions, it is necessary to use a lubricant with physical properties suitable for each casting condition, such as changing the lubricant between the initial casting phase and the stationary phase, and using high-speed casting. Attempts are sometimes made to use special lubricants.
【０００３】そこで、この流入量の制御方法に関して電
磁力を利用したいくつかの装置が提案されている。これ
らは鋳片表面と鋳型内面との間に潤滑剤を供給するた
め、メニスカス部を湾曲させる電磁力を鋳型に付与する
ものである。この湾曲の原理を図４にしめす。通電コイ
ルに交流電流Ｉが流れると鋳型の周囲には交流磁界Ｈが
発生する。又この交流磁界Ｈにより鋳型内の溶融金属に
は誘導電流i が生じる。この磁界Ｈと誘導電流i との相
互作用により溶融金属には鋳型の中心方向に向かうピン
チ力Ｆが働く。このピンチ力Ｆにより溶融金属は鋳型の
中心方向に絞られメニスカス部は凸状に湾曲するのであ
る。Therefore, several devices utilizing electromagnetic force have been proposed for the method of controlling the inflow amount. These supply a lubricant between the surface of the slab and the inner surface of the mold, so that an electromagnetic force for bending the meniscus portion is applied to the mold. The principle of this bending is shown in FIG. When an alternating current I flows through the energizing coil, an alternating magnetic field H is generated around the mold. Further, due to this alternating magnetic field H, an induced current i is generated in the molten metal in the mold. Due to the interaction between the magnetic field H and the induced current i, a pinch force F is applied to the molten metal toward the center of the mold. Due to this pinch force F, the molten metal is squeezed toward the center of the mold, and the meniscus portion is curved in a convex shape.
【０００４】特開昭52−32824 号公報では通電コイルが
鋳型の内部に鋳型内壁を包囲するように耐火物で絶縁さ
れて埋め込まれており、この通電コイルに交流電流を供
給することによりメニスカス部を湾曲させ潤滑剤の流入
を促進するものである。しかしこの装置では低周波の交
流電流が鋳型内を通過するため、潤滑剤が溶湯に巻き込
まれるという問題が発生すると共に薄スラブの長片側で
は減衰するために電磁効果が期待できないという問題も
生じる。In Japanese Unexamined Patent Publication No. 52-32824, a current-carrying coil is embedded inside a mold so as to surround the inner wall of the mold and insulated by a refractory material. By supplying an alternating current to the current-carrying coil, the meniscus portion is formed. Is curved to promote the inflow of lubricant. However, in this device, since a low-frequency alternating current passes through the mold, there is a problem that the lubricant is caught in the molten metal, and there is a problem that the electromagnetic effect cannot be expected due to the attenuation on the long side of the thin slab.
【０００５】特開平２−147150号公報には、図５に示す
ように、通電コイル３によって溶融金属５のメニスカス
部に効率よく電磁力を作用させるために、特に鋳型上端
部まで達する複数のスリット１を設けた上部テーパー付
き鋳型２を用いる装置が示されている。通電コイル３に
交流電流Ｉが流れると鋳型の内面側周囲には交流磁界Ｈ
が発生し、鋳型内の溶融金属には誘導電流i が生じる。
この磁界Ｈと誘導電流i との相互作用により、溶融金属
には鋳型の中心方向に向かうピンチ力Ｆが働く。このピ
ンチ力Ｆにより溶融金属は鋳型の中心方向に絞られ、浸
漬ノズル４から流入した溶融金属５の表面８が凸状に湾
曲したメニスカス部から溶融潤滑剤９が鋳片表面の凝固
シェル７と鋳型内面との間隙に流れ込みやすくなるので
ある。この溶融潤滑剤９は、投入された潤滑剤が、浸漬
ノズル４から流入される溶融金属５の熱により溶融した
ものである。この装置は潤滑剤の流入促進には有利であ
るが、テーパー部で生成した凝固シェルが引き抜きの際
にストレート部で拘束される場合があり、ブレークアウ
ト発生などの問題を招くことになる。Japanese Patent Laid-Open No. 2-147150 discloses a plurality of slits reaching the upper end of the mold in order to efficiently apply electromagnetic force to the meniscus portion of the molten metal 5 by the energizing coil 3 as shown in FIG. An apparatus using an upper tapered mold 2 provided with 1 is shown. When an alternating current I flows through the energizing coil 3, an alternating magnetic field H is generated around the inner surface of the mold.
Occurs, and an induced current i is generated in the molten metal in the mold.
Due to the interaction between the magnetic field H and the induced current i, a pinch force F that acts toward the center of the mold acts on the molten metal. Due to this pinch force F, the molten metal is squeezed toward the center of the mold, and the molten lubricant 9 flows from the meniscus portion where the surface 8 of the molten metal 5 flowing from the dipping nozzle 4 is convexly curved to the solidified shell 7 on the surface of the slab. It is easy to flow into the gap between the inner surface of the mold and the mold. The molten lubricant 9 is obtained by melting the introduced lubricant by the heat of the molten metal 5 flowing from the immersion nozzle 4. This device is advantageous for promoting the inflow of the lubricant, but the solidified shell formed in the tapered portion may be restrained in the straight portion during withdrawal, which causes problems such as breakout.
【０００６】上記のようなメニスカス近傍に電磁力を印
加するこれらの連続鋳造装置においては、メニスカスの
形状制御による潤滑剤の流入制御機構だけでなく、同時
に高周波誘導加熱作用による初期凝固付近の緩冷却作用
をも有することになる。この緩冷却鋳造の実現によっ
て、凝固収縮にともなう鋳片の表面割れ防止等、表面性
状改善効果が得られる。In these continuous casting apparatuses for applying electromagnetic force in the vicinity of the meniscus as described above, not only the lubricant inflow control mechanism by controlling the shape of the meniscus but also the slow cooling near the initial solidification by the high frequency induction heating action are simultaneously performed. It will also have an effect. By realizing the slow cooling casting, the surface property improving effects such as the prevention of the surface crack of the slab accompanying the solidification shrinkage can be obtained.
【０００７】[0007]
【発明が解決しようとする課題】ところが、これら電磁
力を利用した鋳造法を大断面の鋳造に適用するには、当
然大きな電力が必要となる。しかしながら交流電流は周
波数が高くなるにつれてエネルギー効率が悪くなるた
め、大断面鋳片鋳造に必要な高出力を得るには、現在の
技術では周波数を低くして数KHz オーダーにせざるを得
ない。ところが周波数が低い場合には、表皮深さが大き
くなり電磁作用の効果が大きくなる反面、湯面の振動や
図３に矢印Ｖで示すような鋳型内の溶融金属の流動 (以
下、溶鋼流動という) を誘起しやすくなる。この湯面の
変動によって鋳片表面に未溶融潤滑剤が巻き込まれ (ノ
ロかみ) 、表面欠陥の発生を引き起こすことになる。However, in order to apply the casting method utilizing the electromagnetic force to casting of a large cross section, a large amount of electric power is naturally required. However, since the energy efficiency is deteriorated as the alternating current frequency is high, in order to obtain a high output required large section slab casting, obliged to several KH z-order to lower the frequency with current technology. However, when the frequency is low, the skin depth increases and the effect of electromagnetic action increases, but on the other hand, the vibration of the molten metal and the flow of molten metal in the mold as shown by arrow V in FIG. 3 (hereinafter referred to as molten steel flow) ) Is easily induced. Due to this fluctuation of the molten metal surface, the unmelted lubricant is entrained on the surface of the slab (pollution), which causes the generation of surface defects.
【０００８】本発明は大断面鋳片鋳造の際に、鋳型内の
溶融金属に電磁力を印加して、容易に鋳造条件に応じた
潤滑剤入量を得て高速鋳造を実現すると共に誘導加熱に
より緩冷却を促進し、かつ湯面振動および溶鋼流動を抑
え、良好な表面性状を有する鋳片の製造を可能にする事
を目的とする。According to the present invention, when casting a large cross-section slab, an electromagnetic force is applied to the molten metal in the mold to easily obtain the amount of lubricant according to the casting conditions to achieve high-speed casting and induction heating. The purpose of the present invention is to promote gentle cooling, suppress molten metal surface vibration and molten steel flow, and enable the production of a slab having good surface properties.
【０００９】[0009]
【課題を解決するための手段】本発明者は、上記課題を
解決する手段について種々検討を重ねた結果、鋳型内の
溶融金属湯面近傍に鋳片全幅にわたって鋳造方向と直交
する静磁場を付与すると、上記湯面振動および溶鋼流動
を抑えることができ、上記ノロかみによる表面欠陥を引
き起こすことはないという知見が得られ、この知見に基
づいて本発明はなされたのである。As a result of various studies on means for solving the above-mentioned problems, the present inventor applied a static magnetic field orthogonal to the casting direction over the entire width of the cast slab in the vicinity of the molten metal surface in the mold. Then, the knowledge that the above-mentioned level vibration and molten steel flow can be suppressed and the surface defects due to the above-mentioned slagging will not be caused was obtained, and the present invention was made based on this finding.
【００１０】したがって、本発明は、鋳型壁に鋳造方向
に平行な複数のスリットを有する鋳型、鋳型の周囲にこ
れを周回する高周波電流を導く通電コイル、および鋳型
内の溶融金属湯面近傍に鋳片全幅にわたって鋳造方向と
直交する静磁場を付与するための磁石を備えた金属の連
続鋳造装置に特徴を有するものである。Therefore, according to the present invention, a mold having a plurality of slits formed in the mold wall in parallel with the casting direction, a current-carrying coil for guiding a high-frequency current around the mold, and a casting metal near the molten metal surface in the mold. The present invention is characterized by a metal continuous casting apparatus provided with a magnet for applying a static magnetic field orthogonal to the casting direction over the entire width of one side.
【００１１】[0011]
【作用】以下、本発明の金属の連続鋳造装置を図１およ
び図２に基づいてに説明する。図１は本発明の装置を示
す一部破断斜視図である。これは長方形のスラブ鋳型の
例である。図示の様に鋳造方向に複数本のスリット１を
有する内部水冷構造の鋳型２の周囲に溶融金属のメニス
カス近傍に対応した部位に高周波通電コイル３が数ター
ン巻かれており、鋳型２内には浸漬ノズル４より溶融金
属５が供給される。さらにこの通電コイル３の外側よ
り、鋳造方向に垂直な静磁場を印加するための磁石 (も
しくは電磁石)14 が設置されている。ここでスリット１
に湯差しの恐れがある場合にはスリット部に耐火物を充
填する事で解決できる。溶融金属５上には粉末または顆
粒状の潤滑剤 (パウダー) ６が投入され、この一部が溶
融金属５の熱によって溶融し、溶融パウダー浴９を形成
する。溶融した潤滑剤の一部は鋳型２と凝固シェル７と
の間に流れ込む。従来の操業では鋳型にオシレーション
と呼ばれる微少振動を与えることにより潤滑剤の流入を
促進している。The continuous metal casting apparatus of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a partially cutaway perspective view showing an apparatus of the present invention. This is an example of a rectangular slab mold. As shown in the drawing, a high-frequency energizing coil 3 is wound around a mold 2 having an internal water-cooling structure having a plurality of slits 1 in the casting direction in the vicinity of the meniscus of the molten metal for several turns. Molten metal 5 is supplied from the immersion nozzle 4. Further, a magnet (or electromagnet) 14 for applying a static magnetic field perpendicular to the casting direction is installed from the outside of the energizing coil 3. Slit 1 here
If there is a risk of boiling water, it can be solved by filling the slit with refractory. A powder or granular lubricant (powder) 6 is put on the molten metal 5, and a part of this is melted by the heat of the molten metal 5 to form a molten powder bath 9. A part of the melted lubricant flows between the mold 2 and the solidified shell 7. In the conventional operation, the inflow of the lubricant is promoted by applying a minute vibration called oscillation to the mold.
【００１２】本発明の提供する装置では、通電コイル３
に高周波電流を供給することによって磁場を発生させ先
述の様にメニスカスを湾曲させる。その際、溶湯表面と
鋳型との隙間が大きく、かつ深くなるので潤滑剤の流入
を促進することができるのである。また同時に高周波誘
導加熱効果によって、緩冷却鋳造による割れ等の表面性
状改善効果がえられるとともに、凝固開始点の変化によ
り、オシレーションマークの低減効果も有している。In the device provided by the present invention, the energizing coil 3
A magnetic field is generated by supplying a high frequency current to the and the meniscus is curved as described above. At that time, since the gap between the surface of the molten metal and the mold becomes large and deep, the inflow of the lubricant can be promoted. At the same time, the high-frequency induction heating effect provides an effect of improving surface properties such as cracking due to slow cooling casting, and also has an effect of reducing oscillation marks by changing the solidification starting point.
【００１３】本装置のような大断面の鋳造装置において
は、上記のような効果を得るために1000KW程度の電力が
必要と考えられるが、現在の技術ではこの水準の電力を
得るには数KHz の比較的低い周波数帯の電源を用いざる
を得ない。ところが周波数が低い場合には上述のように
溶融金属に流動が誘起され易く、湯面の変動、潤滑剤の
巻き込み等を招くことになる。一方、一般には電導性を
有する流体が静磁場中を運動するときに流速が減退する
現象が知られている。In a casting apparatus with a large cross section such as this apparatus, it is considered that about 1000 KW of electric power is required to obtain the above effects, but in the present technology, several KH is required to obtain this level of electric power. There is no choice but to use a power source with a relatively low frequency band of z . However, when the frequency is low, flow is easily induced in the molten metal as described above, which causes fluctuations in the molten metal surface, inclusion of the lubricant, and the like. On the other hand, it is generally known that the flow velocity decreases when an electrically conductive fluid moves in a static magnetic field.
【００１４】そこで、磁石14を備え、図２または図４に
示されるように、鋳片全幅にわたって鋳造方向に垂直な
静磁場Ｂを印加することで、溶融金属に発生する流動を
抑制し、性状悪化を防止することができるのである。つ
まり、鋳造に際して交流電流による電磁力を印加するこ
とで、高速鋳造と、考えられる緩冷却促進による表面性
状の改善が可能になると同時に、静磁場Ｂの印加によっ
て、電磁作用により引き起こされる溶融金属の流動Ｖを
抑制し、湯面の変動、潤滑剤の巻き込み等を防止するこ
とができるのである。Therefore, by providing a magnet 14 and applying a static magnetic field B perpendicular to the casting direction over the entire width of the slab as shown in FIG. 2 or FIG. It is possible to prevent the deterioration. That is, by applying an electromagnetic force by an alternating current during casting, it is possible to improve the surface properties by high-speed casting and possible accelerated cooling, and at the same time, by applying the static magnetic field B, the molten metal It is possible to suppress the flow V and prevent the fluctuation of the molten metal surface and the inclusion of the lubricant.
【００１５】なお前述のこれら効果は鋼種を問わず得ら
れる事は言うまでもない。また図１および図２には鋳型
断面が長方形のものを示したが、これは円形、正方形等
であっても問題はない。Needless to say, the above-mentioned effects can be obtained regardless of the steel type. 1 and 2, the mold has a rectangular cross section, but it does not matter if the mold has a circular shape or a square shape.
【００１６】[0016]
(実施例１)図１に示した本発明の装置を用いてスラブ鋳
片の製造を行った。装置諸元、条件は下記の通りであ
る。 鋳 型 : 幅2300mm、厚さ240 mm、長さ 800 mm スリット : 幅0.21mm、長さ150 mm、48本 通電コイル: 角型20×20mm、肉厚 ２mm、巻き数 ４ 電流実効値 12000AT( アンペア・ターン) 、周波数 3.2
KHz 鋼 種 : S45C 鋳造速度 : 2.5m/min 静磁場強度: 0.6 Ｔ。Example 1 A slab cast piece was manufactured using the apparatus of the present invention shown in FIG. Equipment specifications and conditions are as follows. Mold: Width 2300 mm, thickness 240 mm, length 800 mm Slit: Width 0.21 mm, length 150 mm, 48 energizing coils: Square 20 × 20 mm, wall thickness 2 mm, winding number 4 Current effective value 12000 AT (ampere)・ Turn), frequency 3.2
KHz Steel type: S45C Casting speed: 2.5m / min Static magnetic field strength: 0.6T.
【００１７】鋳造には溶鋼を浸漬ノズルで鋳型内に供給
しつつ、上部には連続鋳造用パウダーを投入し、2.5 m/
min の速度で150 秒間引き抜きを行った。このとき鋳型
には4.5Hz 程度の鋳型振動 (オシレーション) を与え、
静磁場は鋳造方向の幅がおよそ10ｃｍにわたって均一な
ものを与えた。鋳造後の鋳片には割れ潤滑剤の巻き込み
等の表面欠陥はほとんど認められず、極めて良好な鋳片
が得られた。このときの鋳片を調査したところ凝固係数
は約14 mm/min0.5、表面から10mmにおける平均冷却速度
は65℃/ min であった。For casting, while feeding molten steel into the mold with a dipping nozzle, continuous casting powder was put into the upper part to obtain 2.5 m / min.
Extraction was performed for 150 seconds at a speed of min. At this time, a mold vibration (oscillation) of about 4.5 Hz was applied to the mold,
The static magnetic field provided a uniform width in the casting direction of about 10 cm. After casting, almost no surface defects such as cracked lubricant inclusion were observed in the cast piece, and a very good cast piece was obtained. When the slabs at this time were investigated, the solidification coefficient was about 14 mm / min 0.5 , and the average cooling rate at 10 mm from the surface was 65 ° C / min.
【００１８】(比較例１)静磁場は印加せずその他条件は
実施例１と同様の条件で鋳造を行った。その結果、表面
割れはほとんど認められなかったが、平均8.2 ヶ/100cm
2 の潤滑剤の巻き込み (ノロかみ) が認められた。鋳造
後に回収した鋳片表面に付着していた潤滑剤の厚さは平
均で1.25mm程度で凝固係数はおよそ15 mm/min0.5、鋳片
表面から10 mmにおける平均冷却速度は88℃/ min であ
った。Comparative Example 1 Casting was carried out under the same conditions as in Example 1 except that no static magnetic field was applied. As a result, almost no surface cracks were observed, but an average of 8.2 pieces / 100 cm.
2 Lubricant entrainment (slurry bite) was observed. The thickness of the lubricant adhering to the surface of the slab recovered after casting was about 1.25 mm on average, the solidification coefficient was about 15 mm / min 0.5 , and the average cooling rate at 10 mm from the slab surface was 88 ° C / min. there were.
【００１９】(比較例２)比較のため電磁力を印加せず
に、その他条件は実施例１と同じとして鋳造を行った。
その結果、鋳造後の鋳片には３カ所でシェル破断の形跡
が認められた。このときの凝固係数は約23 mm/min0.5、
鋳片表面からの10mmの位置における平均冷却速度は82℃
/ min であり、表面には合計1.9 ｍの縦割れが発生して
いた。またノロかみ5.5 ヶ/100cm2 程度であった。上
記、実施例１、比較例１および比較例２で得られた結果
を表１に示す。(Comparative Example 2) For comparison, casting was performed under the same conditions as in Example 1 except that no electromagnetic force was applied.
As a result, evidence of shell breakage was observed at three locations on the cast piece after casting. The solidification coefficient at this time is about 23 mm / min 0.5 ,
The average cooling rate at a position of 10 mm from the surface of the slab is 82 ° C.
/ min, and the surface had vertical cracks of 1.9 m in total. In addition, it was about 5.5 pieces / 100 cm 2 of bite. Table 1 shows the results obtained in Example 1, Comparative Example 1 and Comparative Example 2 described above.
【００２０】[0020]
【表１】 [Table 1]
【００２１】表１に示される結果から、実施例１におけ
るノロかみ個数は比較例１および２におけるノロかみ個
数に比べて格段に少ないことがわかる。From the results shown in Table 1, it can be seen that the number of loose bites in Example 1 is significantly smaller than that in Comparative Examples 1 and 2.
【００２２】[0022]
【発明の効果】以上述べたように、本発明の装置によ
り、数KHz の比較的低い周波数の電磁力を利用した大断
面鋳片鋳造においても、鋳造条件に応じて容易に冷却速
度をコントロールし、潤滑剤流入量を制御して高速鋳造
時にも焼き付きを防ぐとともに、潤滑剤の巻き込みを防
止して、良好な表面性状を有する鋳片の製造が可能とな
る。As described above, according to the present invention, the apparatus of the present invention, even in a large section slab castings using electromagnetic force of a relatively low frequency of several KH z, controlled easily cooling rate depending on the casting conditions The amount of lubricant inflow is controlled to prevent seizure even during high speed casting, and to prevent the lubricant from being entrained, so that a slab having good surface properties can be manufactured.
【図１】本発明の鋳造装置の一例を示す一部破断斜視図
である。FIG. 1 is a partially cutaway perspective view showing an example of a casting apparatus of the present invention.
【図２】図１に示す装置の断面図である。2 is a cross-sectional view of the device shown in FIG.
【図３】従来の鋳造装置の問題点を説明するための断面
説明図である。FIG. 3 is a cross-sectional explanatory view for explaining a problem of the conventional casting apparatus.
【図４】鋳造装置において電磁作用によりメニスカス部
を湾曲させる原理を示す模式図である。FIG. 4 is a schematic view showing a principle of bending a meniscus portion by an electromagnetic action in a casting device.
【図５】電磁作用を利用した従来の鋳造装置を示す縦断
面図である。FIG. 5 is a vertical cross-sectional view showing a conventional casting apparatus utilizing electromagnetic action.
1 : スリット 2 : 鋳型 3 : 通電コイル 4 : 浸漬ノズル 5 : 溶融金属 6 : 潤滑剤 (パ
ウダー) 7 : 凝固シェル 8 : 溶融金属界面 9 : 溶融潤滑
剤浴 10： 焼結パウダー層 11 ：スラグリム 14：磁石 Ｉ：交流電流 Ｈ：交流磁界 i ：誘導電
流 Ｆ：ピンチ力 Ｂ：静磁場 Ｖ：溶鋼流
動1: Slit 2: Mold 3: Energizing coil 4: Immersion nozzle 5: Molten metal 6: Lubricant (powder) 7: Solidified shell 8: Molten metal interface 9: Molten lubricant bath 10: Sintered powder layer 11: Slugrim 14 : Magnet I: AC current H: AC magnetic field i: Induction current F: Pinch force B: Static magnetic field V: Molten steel flow
Claims (1)
トを有する鋳型、鋳型の周囲にこれを周回する高周波電
流を導く通電コイル、および鋳型内の溶融金属湯面近傍
に鋳片全幅にわたって鋳造方向と直交する静磁場を付与
するための磁石を備えることを特徴とする金属の連続鋳
造装置。1. A mold having a plurality of slits parallel to a casting direction on a mold wall, a current-carrying coil for guiding a high-frequency current circulating around the mold, and a cast metal in the vicinity of a molten metal surface over the entire width of the cast metal. A continuous casting device for metals, comprising a magnet for applying a static magnetic field orthogonal to the direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07037293A JP3216312B2 (en) | 1993-03-29 | 1993-03-29 | Metal continuous casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07037293A JP3216312B2 (en) | 1993-03-29 | 1993-03-29 | Metal continuous casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06277803A true JPH06277803A (en) | 1994-10-04 |
| JP3216312B2 JP3216312B2 (en) | 2001-10-09 |
Family
ID=13429552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07037293A Expired - Fee Related JP3216312B2 (en) | 1993-03-29 | 1993-03-29 | Metal continuous casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3216312B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1033189A2 (en) * | 1999-03-03 | 2000-09-06 | Nippon Steel Corporation | Continuous casting apparatus for molten steel |
-
1993
- 1993-03-29 JP JP07037293A patent/JP3216312B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1033189A2 (en) * | 1999-03-03 | 2000-09-06 | Nippon Steel Corporation | Continuous casting apparatus for molten steel |
| EP1033189A3 (en) * | 1999-03-03 | 2001-04-11 | Nippon Steel Corporation | Continuous casting apparatus for molten steel |
| US6443221B1 (en) | 1999-03-03 | 2002-09-03 | Nippon Steel Corporation | Continuous casting apparatus for molten metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3216312B2 (en) | 2001-10-09 |
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