JP3520841B2 - Metal continuous casting method - Google Patents
Metal continuous casting methodInfo
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- JP3520841B2 JP3520841B2 JP2000207973A JP2000207973A JP3520841B2 JP 3520841 B2 JP3520841 B2 JP 3520841B2 JP 2000207973 A JP2000207973 A JP 2000207973A JP 2000207973 A JP2000207973 A JP 2000207973A JP 3520841 B2 JP3520841 B2 JP 3520841B2
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- mold
- molten metal
- magnetic field
- coil
- flux
- Prior art date
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Description
【０００１】[0001]
【発明の属する技術分野】本発明は、表面欠陥の少ない
金属鋳片の連続鋳造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous casting method for metal slabs having few surface defects.
【０００２】[0002]
【従来の技術】連続鋳造において、溶融金属（溶湯）を
鋳型に注入する際には、浸漬ノズルを用いる場合が多
い。この場合、溶湯表面の流速が大きすぎると溶湯上部
のモールドフラックスを巻き込んだり、また、溶湯表面
の流速が小さすぎると、その位置で溶湯が淀んで偏析
し、最終的に表面偏析となることがあった。かかる表面
欠陥を軽減する手段として、鋳型内溶湯に静磁界および
／または移動磁界（交流移動磁界）を印加して溶湯の流
速を制御する方法が知られている。2. Description of the Related Art In continuous casting, a dipping nozzle is often used when pouring molten metal (molten metal) into a mold. In this case, if the flow velocity of the molten metal surface is too high, the mold flux in the upper portion of the molten metal is involved, and if the velocity of the molten metal surface is too low, the molten metal stagnates and segregates at that position, and eventually surface segregation occurs. there were. As a means for reducing such surface defects, a method of applying a static magnetic field and / or a moving magnetic field (AC moving magnetic field) to the molten metal in the mold to control the flow velocity of the molten metal is known.
【０００３】しかし、静磁界で溶湯流を制動（電磁ブレ
ーキ）しようとする際には、特に、溶湯の淀み位置での
偏析が、また、移動磁界で溶湯を攪拌（電磁攪拌）しよ
うとする際には、流速が大きい位置でのモールドフラッ
クスの巻き込み（フラックス巻き込み）が、それぞれ発
生し易いという問題があった。この問題に対処すべく、
磁場のかけ方を工夫した提案が幾つかなされている。例
えば、特開平９−182941号公報には、移動磁界による溶
湯の攪拌方向を周期的に反転させて、攪拌部より下方へ
の介在物の拡散を防ぐ方法が開示され、また、特開平８
−187563号公報には、鋳型振動に応じて高周波電磁力の
大きさを変化させてブレークアウトを防止する方法が開
示され、また、特開平８−267197号公報には、電磁制動
力切り換え時の磁束密度変化率に傾斜をもたせて溶鋼流
動の変化を小さくし介在物欠陥を防止する方法が開示さ
れ、また、特開平８−155605号公報には、鋳型厚み方向
に連続する低電気伝導層を介して10〜1000Hzの水平方向
移動磁界を印加して溶湯にピンチ力を加えて鋳型と溶湯
間の接触圧を低減する方法が開示されている。However, when attempting to brake the molten metal flow by a static magnetic field (electromagnetic brake), segregation of the molten metal at the stagnation position is particularly important, and also when trying to stir the molten metal with a moving magnetic field (electromagnetic stirring). However, there is a problem in that mold flux entrainment (flux entrainment) at positions where the flow velocity is high is likely to occur. To address this issue,
Several proposals have been made that devise ways of applying a magnetic field. For example, Japanese Patent Application Laid-Open No. 9-182941 discloses a method of periodically reversing the stirring direction of a molten metal by a moving magnetic field to prevent the diffusion of inclusions below the stirring section.
No. 187563 discloses a method of preventing the breakout by changing the magnitude of a high frequency electromagnetic force according to the vibration of a mold, and Japanese Patent Application Laid-Open No. 8-267197 discloses a method of changing the electromagnetic braking force. A method is disclosed in which the rate of change in magnetic flux density is graded to reduce changes in molten steel flow to prevent inclusion defects. Further, Japanese Patent Laid-Open No. 8-155605 discloses a low electrical conductivity layer continuous in the thickness direction of a mold. A method of applying a horizontal moving magnetic field of 10 to 1000 Hz to apply a pinch force to the molten metal to reduce the contact pressure between the mold and the molten metal is disclosed.
【０００４】しかしながら、何れの方法においても、移
動磁界により大きなマクロ溶湯流動が誘起され、あるい
は、静磁界の小さいところで溶湯流速が大きくなり、フ
ラックス巻き込みを十分に防止できるまでに至っていな
い。However, in any of the methods, a large magnetic flux of the molten metal is induced by the moving magnetic field, or the molten metal flow velocity increases at a small static magnetic field, and flux entrainment cannot be sufficiently prevented.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、前記従来技
術の限界を打破し、フラックス巻き込み、表面近くで捕
捉される気泡や非金属介在物、および表面偏析の極めて
少ない鋳片が得られる金属の連続鋳造方法を提供するこ
とを目的とする。DISCLOSURE OF THE INVENTION The present invention overcomes the above-mentioned limitations of the prior art and provides a metal that can be obtained by entrapping flux, bubbles and non-metallic inclusions trapped near the surface, and a slab with extremely little surface segregation. It is an object of the present invention to provide a continuous casting method of
【０００６】[0006]
【課題を解決するための手段】本発明者らは、上記の目
的を達成すべく鋭意調査を重ねた結果、以下の知見を得
た。
１）静磁界による溶湯流動制御は、モールドフラックス
の巻き込み防止および介在物の侵入に極めて有効である
が、磁場が強いときには、流速が小さくなり溶湯表面で
の半凝固によって表面偏析５を引き起こす（図１参
照）。Means for Solving the Problems The inventors of the present invention have made extensive studies in order to achieve the above object, and have obtained the following findings. 1) Control of molten metal flow by static magnetic field is extremely effective in preventing entrapment of mold flux and intrusion of inclusions, but when the magnetic field is strong, the flow velocity decreases and semi-solidification on the surface of the molten metal causes surface segregation 5 (Fig. 1).
【０００７】２）移動磁界による溶湯流動制御では、表
面偏析５や、凝固界面での異物（気泡や非金属介在物
４）捕捉を防止できるが、溶湯流速２が大きくなるた
め、モールドフラックスの巻き込みが発生しやすく、巻
き込まれるモールドフラックス３の量が増えやすい。
（図１参照）
３）フラックス巻き込みを抑制しつつ、溶湯表面での半
凝固、凝固界面での異物捕捉を防止するためには、溶湯
にマクロな流動は誘起せず振動のみ誘起する電磁力を作
用させる方法が極めて効果的であり、このような電磁力
は、移動せずに振動する交流磁場（以下、非移動振動磁
界という）により生み出すことができる。2) The molten metal flow control by the moving magnetic field can prevent the surface segregation 5 and the trapping of foreign matters (air bubbles and non-metallic inclusions 4) at the solidification interface, but since the molten metal flow rate 2 becomes large, the entrainment of mold flux Is likely to occur, and the amount of the mold flux 3 involved is likely to increase.
(See Fig. 1) 3) In order to prevent semi-solidification on the surface of the molten metal and capture of foreign matter at the solidification interface while suppressing flux entrainment, an electromagnetic force that induces only vibration without inducing macroscopic flow in the molten metal is applied. The method of acting is extremely effective, and such an electromagnetic force can be generated by an alternating magnetic field that vibrates without moving (hereinafter referred to as a non-moving oscillating magnetic field).
【０００８】本発明は、かかる知見を基になされたもの
である。すなわち、本発明は、金属の連続鋳造方法にお
いて、鉄心にコイルを装着してなる電磁石を鋳型厚両側
で対向させて鋳型幅方向に配列し、かつコイルを同方向
に巻いた電磁石を互いに対向する位置に配置し、コイル
を逆方向に巻いた電磁石を互いに隣り合う位置に配置し
て、各コイルに単相交流電流を通電することによって鋳
型内溶湯に非移動振動磁界を印加して同溶湯に振動のみ
を励起することを特徴とする金属の連続鋳造方法であ
る。 The present invention is based on such findings. That is, the present invention is a method of continuously casting metal, in which an electromagnet formed by attaching a coil to an iron core is provided on both sides of the mold
Are aligned in the width direction of the mold and the coils are aligned in the same direction.
The electromagnets wound on the
Place the electromagnets wound in the opposite direction next to each other.
Then, by applying a single-phase alternating current to each coil, a non-moving oscillating magnetic field is applied to the molten metal in the casting mold to excite only vibrations in the molten metal. There is .
【０００９】前記鉄心は、個々に分離した単鉄心でもよ
く、また、コイル装着部としての櫛歯部を有する櫛状鉄
心でもよい。前記単相交流電流は、周波数0.10〜60Hzの
ものが好ましい。The iron core may be a single iron core which is individually separated, or a comb-shaped iron core having a comb tooth portion as a coil mounting portion. The single-phase alternating current preferably has a frequency of 0.10 to 60 Hz.
【００１０】[0010]
【発明の実施の形態】本発明では、連続鋳造中の鋳型内
溶湯に非移動振動磁界を印加して同溶湯に振動のみを励
起するようにした。非移動磁界であるため、移動磁界に
おけるような溶湯バルク流（マクロな流動）は生起しな
いから、フラックス巻き込みは発生し難い。また、振動
磁界であるため、凝固界面付近で溶湯の微小振動が生起
し、この微小振動によって凝固界面への異物（気泡や非
金属介在物）捕捉が防止できるとともに、表面偏析の原
因となるメニスカス（溶湯表面）付近での不均一凝固も
抑制できる。BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a non-moving oscillating magnetic field is applied to a molten metal in a mold during continuous casting to excite only vibration in the molten metal. Since it is a non-moving magnetic field, a molten metal bulk flow (macroflow) unlike in a moving magnetic field does not occur, so that flux entrainment is unlikely to occur. Also, since it is an oscillating magnetic field, minute vibrations of the molten metal occur near the solidification interface, and these minute vibrations can prevent foreign substances (air bubbles and non-metallic inclusions) from being trapped at the solidification interface and cause meniscus that causes surface segregation. Non-uniform solidification near the (molten metal surface) can also be suppressed.
【００１１】非移動振動磁界は、例えば図２に示すよう
に、鉄心８にコイル９を装着してなる電磁石７を鋳型６
の厚さ方向両側で対向させて鋳型６の幅方向に配列し、
各コイル９に単相交流電流を通電してつくることができ
る。なお、図２、図３において、20は磁力線である。図
２の例は、対向する二コイル９，９を互いに同じ向き
(x,xまたはy,y)に巻き、かつ同じ配列内で隣り合う二コ
イル９，９を互いに逆向き(x,y) に巻いて、単相交流電
流を通電するもので、同じ配列内で隣り合う二つの電磁
石７，７間で磁力の向きが時間によって反転するため、
溶湯には鋳型幅方向の振動流10のみが励起され、バルク
流は生じない。The non-moving oscillating magnetic field is, for example, as shown in FIG. 2, an electromagnet 7 formed by mounting a coil 9 on an iron core 8 and a mold 6
Arranged in the width direction of the mold 6 so as to face each other on both sides in the thickness direction of
It can be made by passing a single-phase alternating current through each coil 9. In addition, in FIG. 2 and FIG. 3, 20 is a magnetic force line. In the example of FIG. 2, the two coils 9 facing each other are oriented in the same direction.
(x, x or y, y) and two adjacent coils 9 and 9 in the same array are wound in opposite directions (x, y) to pass a single-phase alternating current. Since the direction of the magnetic force between two adjacent electromagnets 7 and 7 is reversed with time,
Only the oscillatory flow 10 in the width direction of the mold is excited in the molten metal, and no bulk flow is generated.
【００１２】[0012]
【００１３】これに対し、移動磁界は、例えば図３に示
すように、鉄心８にコイル９を装着してなる電磁石７を
鋳型６の厚さ方向両側で対向させて鋳型６の幅方向に配
列し、各コイル９に三相交流電流を通電してつくられ
る。u,v,w は三相交流電流の相異なる三位相である。左
側６コイルと右側６コイルとは互いに逆向き(x,y) に巻
かれている。このようにしてつくられる移動磁界では、
磁力の向きが一定（鋳型幅の一端から他端に向かう向
き）となるため、溶湯には鋳型６壁に沿って水平旋回す
るバルク流12が生起し、フラックス巻き込みを抑制する
のが難しい。[0013] In contrast, the mobile magnetic field, for example, as shown in FIG. 3, arranged electromagnets 7 formed by mounting the coil 9 in the core 8 so as to face in the thickness direction on both sides of the mold 6 in the width direction of the mold 6 Then, each coil 9 is made by passing a three-phase alternating current. u, v, w are three different phases of the three-phase alternating current. The left side 6 coil and the right side 6 coil are wound in opposite directions (x, y). In the moving magnetic field created in this way,
Since the direction of the magnetic force is constant (direction from one end of the mold width to the other end), a bulk flow 12 that horizontally swirls along the wall of the mold 6 occurs in the molten metal, and it is difficult to suppress flux entrainment.
【００１４】ところで、本発明では、電磁石の鉄心は、
図２のように個々に分離した単鉄心でもよいが、例えば
図４に示すように、コイル９装着部としての櫛歯部14を
有する櫛状鉄心13でもよい。この場合は、鋳型６厚両側
に１個ずつの櫛状鉄心13を設け、各櫛歯部14にコイル９
を装着すればよいから、電磁石の製作が容易になるとい
う利点がある。By the way, in the present invention, the iron core of the electromagnet is
The individual iron cores may be separated as shown in FIG. 2, but, for example, as shown in FIG. 4 , a comb-shaped iron core 13 having a comb tooth portion 14 as a coil 9 mounting portion may be used. In this case, one comb-shaped core 13 is provided on each side of the thickness of the mold 6, and each comb tooth portion 14 is provided with a coil 9.
Since it suffices to mount the electromagnet, there is an advantage that the electromagnet can be easily manufactured.
【００１５】また、本発明では、コイルに流す単相交流
電流は、周波数0.10〜60Hzのものが好ましい。というの
は、周波数0.10Hz以上とすれば表皮効果が大きくなり、
凝固界面近傍に振動を集中させることができて、より大
きい異物捕捉防止効果が得られるが、周波数60Hz超では
振動付勢力が溶湯の粘性抵抗に近くなり、溶湯の振動が
弱まって異物捕捉防止効果が減衰するからである。Further, in the present invention, it is preferable that the single-phase alternating current supplied to the coil has a frequency of 0.10 to 60 Hz. Because, if the frequency is 0.10Hz or more, the skin effect becomes large,
Vibration can be concentrated near the solidification interface, and a greater effect of preventing foreign matter capture can be obtained, but above a frequency of 60 Hz, the vibration energizing force becomes close to the viscous resistance of the molten metal, and the vibration of the molten metal weakens, preventing foreign matter capture. Is attenuated.
【００１６】以上に述べたように、本発明によれば、表
面偏析がなく、鋳片に捕捉される異物（気泡、非金属介
在物）が少なく、フラックス巻き込みも少ない高品質の
金属鋳片を鋳造することができるようになる。なお、電
磁石の設置場所は、溶湯表面に近い位置が望ましいが、
ノズル吐出孔よりも下の位置であっても類似の効果が得
られる。As described above, according to the present invention, a high quality metal slab having no surface segregation, a small amount of foreign substances (air bubbles, non-metallic inclusions) trapped in the slab, and a small amount of flux entrainment is obtained. Be able to cast. The location of the electromagnet is preferably close to the surface of the molten metal,
Similar effects can be obtained even at a position lower than the nozzle discharge hole.
【００１７】[0017]
【実施例】転炉−ＲＨ処理にて溶製した極低炭素Alキル
ド溶鋼（代表化学組成を表１に示す）約300tonを、連続
鋳造機にて、浸漬ノズルを用いて鋳型に速度４〜５ton/
min で鋳込み、幅1500〜1700mm、厚み220mm のスラブを
鋳造するにあたり、鋳型の溶湯表面相当位置を含む部位
に図２〜図３の何れかの形態で電磁石を配設し、その各
コイルに種々の周波数の三相交流電流または単相交流電
流を通電して、最大磁束密度0.1 Ｔの移動磁界または三
相あるいは非移動振動磁界を印加しながら、あるいは磁
界を印加せずに、鋳造する実験を行った。Example About 300 tons of ultra-low carbon Al killed molten steel (representative chemical composition is shown in Table 1) produced by converter-RH treatment was cast in a continuous casting machine with a dipping nozzle at a speed of 4 to 4 5ton /
casting min, and width 1500～1700Mm, Upon casting slab of thickness 220 mm, an electromagnet disposed to either the form of Figures 2-3 the site containing the melt surface corresponding position of the mold, various in that each coil Experiments in which a three-phase alternating current or a single-phase alternating current with a frequency of 1 is applied and a moving magnetic field with a maximum magnetic flux density of 0.1 T or a three-phase or non-moving oscillating magnetic field is applied, or no magnetic field is applied. went.
【００１８】[0018]
【表１】 [Table 1]
【００１９】この実験では、静磁界印加条件毎に、表面
偏析、フラックス性表面欠陥、気泡・介在物量の３項目
を以下の要領で調査した。
〔表面偏析〕スラブ研削後、エッチングを行い目視観察
によって１ｍ2 当たりの偏析個数をカウント
〔フラックス性表面欠陥〕冷間圧延後のコイルの表面欠
陥を目視検査し、欠陥サンプルを採取後、欠陥部を分析
することによってモールドフラックスの巻き込みによる
欠陥個数をカウント
〔気泡・介在物量〕鋳片の1/4 厚み部位からスライム抽
出法によって非金属介在物を抽出し、その重量を測定
（気泡については、鋳片表層部をスライスし、透過Ｘ線
によって気泡個数を調査）
結果を磁場印加条件と併せて表２に示す。なお、上記３
項目の評価値は何れも指数（全条件中のワーストデータ
に対する比を10倍した数値）で表示した。In this experiment, three items of surface segregation, flux surface defects, and amount of bubbles / inclusions were investigated for each static magnetic field application condition in the following manner. [Surface segregation] After slab grinding, etching is performed and the number of segregation per 1 m 2 is counted by visual observation. [Flux surface defect] The surface defect of the coil after cold rolling is visually inspected, and a defect sample is sampled, and then the defective portion is collected. By counting the number of defects due to the entrainment of mold flux (amount of bubbles / inclusions) nonmetallic inclusions are extracted by the slime extraction method from the 1 / 4-thickness portion of the slab, and the weight is measured (for bubbles, The surface layer of the slab is sliced and the number of bubbles is examined by transmission X-ray. The results are shown in Table 2 together with the magnetic field application conditions. Note that the above 3
The evaluation value of each item is expressed by an index (a value obtained by multiplying the worst data in all conditions by 10 times).
【００２０】[0020]
【表２】 [Table 2]
【００２１】表２からわかるように、非移動振動磁界を
印加した本発明の実施例では、表面偏析、モールドフラ
ックス巻き込みによる欠陥、気泡・非金属介在物を顕著
に低減することができた。なお、実施例１では0.05Hzと
周波数が低すぎるため、一部でマクロな流動が励起さ
れ、フラックス性表面欠陥が僅かに増加した。 As can be seen from Table 2, in the examples of the present invention to which a non-moving oscillating magnetic field was applied, surface segregation, defects due to mold flux entrainment, bubbles and non-metallic inclusions could be significantly reduced. In Example 1, since the frequency was too low at 0.05 Hz, macrofluidic flow was partially excited, and the flux surface defects slightly increased .
【００２２】[0022]
【発明の効果】本発明によれば、鋳片に捕捉される気泡
・非金属介在物、および鋳片表面偏析、ならびにモール
ドフラックス起因の表面欠陥および内部介在物の少ない
金属鋳片を鋳造でき、高品質の金属製品の製造が可能に
なるという優れた効果を奏する。EFFECTS OF THE INVENTION According to the present invention, it is possible to cast air bubbles / non-metallic inclusions trapped in a slab, segregation of the slab surface, and a metal slab with few surface defects and internal inclusions caused by mold flux. It has an excellent effect that high quality metal products can be manufactured.
【図１】フラックス巻き込み、表面偏析、異物捕捉の発
生機構を示す模式図である。FIG. 1 is a schematic diagram showing a mechanism of flux entrainment, surface segregation, and foreign matter trapping.
【図２】非移動振動磁界のつくり方の例を示す模式図で
ある。FIG. 2 is a schematic diagram showing an example of how to create a non-moving oscillating magnetic field.
【図３】移動振動磁界のつくり方の例を示す模式図であ
る。3 is a schematic diagram showing an example of How to make a move oscillating magnetic field.
【図４】櫛状鉄心の例を示す模式図である。 FIG. 4 is a schematic view showing an example of a comb-shaped iron core .
１ 溶湯注入ノズル（浸漬ノズル） ２ 溶湯流速 ３ 巻き込まれるモールドフラックス ４ 非金属介在物 ５ 表面偏析 ６ 鋳型 ７ 電磁石 ８ 鉄心 ９ コイル 10 鋳型幅方向の振動流 11 鋳型厚方向の振動流 12 バルク流 13 櫛状鉄心 14 櫛歯部 20 磁力線 1 Molten metal injection nozzle (immersion nozzle) 2 Melt flow velocity 3 Mold flux involved 4 Non-metallic inclusions 5 Surface segregation 6 molds 7 Electromagnet 8 iron core 9 coils 10 Oscillatory flow in the mold width direction 11 Oscillating flow in mold thickness direction 12 bulk flow 13 Comb iron core 14 Comb teeth 20 magnetic field lines
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平９−239505（ＪＰ，Ａ) 特開 平２−274350（ＪＰ，Ａ) 特開 平４−100665（ＪＰ，Ａ) 特開 平９−262651（ＪＰ，Ａ) 特開 平８−90169（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B22D 11/115 B22D 11/04 311 B22D 11/11 ─────────────────────────────────────────────────── --Continued from the front page (56) Reference JP-A-9-239505 (JP, A) JP-A-2-274350 (JP, A) JP-A-4-100665 (JP, A) JP-A-9- 262651 (JP, A) JP-A-8-90169 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B22D 11/115 B22D 11/04 311 B22D 11/11
Claims (3)
イルを装着してなる電磁石を鋳型厚両側で対向させて鋳
型幅方向に配列し、かつコイルを同方向に巻いた電磁石
を互いに対向する位置に配置し、コイルを逆方向に巻い
た電磁石を互いに隣り合う位置に配置して、各コイルに
単相交流電流を通電することによって鋳型内溶湯に非移
動振動磁界を印加して同溶湯に振動のみを励起すること
を特徴とする金属の連続鋳造方法。1. A continuous core casting method for metal
When the electromagnets that are attached to the mold are made to face each other on both sides of the mold thickness,
Electromagnets arranged in the mold width direction and coils wound in the same direction
Are placed opposite each other and the coil is wound in the opposite direction.
Electromagnets are placed next to each other and
A continuous casting method for metals, which comprises applying a non-moving oscillating magnetic field to a molten metal in a mold by energizing a single-phase alternating current to excite only vibrations in the molten metal.
たはコイル装着部としての櫛歯部を有する櫛状鉄心であ
ることを特徴とする請求項１記載の方法。2. The iron cores are individually separated single iron cores or
The method according to claim 1, wherein the method is a comb-shaped iron core having a comb tooth portion as a coil mounting portion .
のものであることを特徴とする請求項１または２に記載
の方法。3. The single-phase alternating current has a frequency of 0.10 to 60 Hz.
The method according to claim 1 or 2, characterized in that
Priority Applications (11)
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|---|---|---|---|
| JP2000207973A JP3520841B2 (en) | 2000-07-10 | 2000-07-10 | Metal continuous casting method |
| CA2325808A CA2325808C (en) | 2000-07-10 | 2000-11-14 | Method and apparatus for continuous casting of metals |
| CA002646757A CA2646757A1 (en) | 2000-07-10 | 2000-11-14 | Method and apparatus for continuous casting of metals |
| TW089124284A TW555604B (en) | 2000-07-10 | 2000-11-16 | Method and apparatus for continuous casting of metals |
| KR1020000068490A KR100740814B1 (en) | 2000-07-10 | 2000-11-17 | Method and apparatus for continuous casting of metals |
| EP04025797A EP1508389A3 (en) | 2000-07-10 | 2000-11-17 | Method and apparatus for continuous casting of metals |
| DE60017885T DE60017885T2 (en) | 2000-07-10 | 2000-11-17 | Method and device for continuous casting of metals |
| EP00125142A EP1172158B1 (en) | 2000-07-10 | 2000-11-17 | Method and apparatus for continuous casting of metals |
| CNB001284843A CN1258414C (en) | 2000-07-10 | 2000-11-17 | Method and device for continuous casting of metal |
| US09/714,161 US6712124B1 (en) | 2000-07-10 | 2000-11-17 | Method and apparatus for continuous casting of metals |
| US10/766,910 US7628196B2 (en) | 2000-07-10 | 2004-01-30 | Method and apparatus for continuous casting of metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000207973A JP3520841B2 (en) | 2000-07-10 | 2000-07-10 | Metal continuous casting method |
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|---|---|
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| JP3520841B2 true JP3520841B2 (en) | 2004-04-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007118090A (en) * | 2007-02-13 | 2007-05-17 | Jfe Steel Kk | Method for continuously casting steel |
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|---|---|---|---|---|
| JP4348988B2 (en) * | 2003-04-11 | 2009-10-21 | Ｊｆｅスチール株式会社 | Steel continuous casting method |
| WO2004091829A1 (en) * | 2003-04-11 | 2004-10-28 | Jfe Steel Corporation | Continuous casting method for steel |
| JP5076465B2 (en) * | 2006-11-30 | 2012-11-21 | Ｊｆｅスチール株式会社 | Steel continuous casting method and equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007118090A (en) * | 2007-02-13 | 2007-05-17 | Jfe Steel Kk | Method for continuously casting steel |
| JP4591456B2 (en) * | 2007-02-13 | 2010-12-01 | Ｊｆｅスチール株式会社 | Steel continuous casting method |
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| JP2002028763A (en) | 2002-01-29 |
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