JPH01241357A - Twin belt type continuous casting apparatus - Google Patents
Twin belt type continuous casting apparatusInfo
- Publication number
- JPH01241357A JPH01241357A JP6714988A JP6714988A JPH01241357A JP H01241357 A JPH01241357 A JP H01241357A JP 6714988 A JP6714988 A JP 6714988A JP 6714988 A JP6714988 A JP 6714988A JP H01241357 A JPH01241357 A JP H01241357A
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- belts
- molten metal
- continuous casting
- mold part
- 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
- 238000009749 continuous casting Methods 0.000 title claims abstract description 15
- 230000006698 induction Effects 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 230000005291 magnetic effect Effects 0.000 abstract description 18
- 238000001816 cooling Methods 0.000 abstract description 15
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 238000007711 solidification Methods 0.000 abstract 3
- 230000008023 solidification Effects 0.000 abstract 3
- 230000005611 electricity Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 45
- 229910052751 metal Inorganic materials 0.000 description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0605—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two belts, e.g. Hazelett-process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、溶融金属から連続的に薄板状の鋳片を得るた
めのツイン・ベルト式の連続鋳造装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a twin-belt type continuous casting apparatus for continuously obtaining a thin plate-like slab from molten metal.
従来の薄スラブ連鋳用のツイン・はルト式連続鋳造装置
を第５図に示す。A conventional twin-rut type continuous casting apparatus for continuous casting of thin slabs is shown in Fig. 5.
１．１′は金属製（主として鋼Ｍ）の二ント３レスのベ
ルト、２，２ははルト駆動用のロール、３．３はベルト
位置決め用トップロール、４．４′はベルトの蛇行防止
を行うためのステアリングロールであって、上記駆動用
ロール２，２によって駆動される一対のばルト１，１は
矢印ｗ、ｗ’の方向に上記の各ロールに案内されて移動
する。上記位置決め用トップロール３．３と駆動用ロー
ル２，２′の間では、上記一対のＲシト１，１は互いに
平行をなして間隔Ｃを保って下方に移動する。1.1' is a metal (mainly steel M) two-torque belt, 2 and 2 are rolls for driving the belt, 3.3 is a top roll for belt positioning, and 4.4' is a belt meandering prevention belt. The pair of bolts 1, 1 driven by the driving rolls 2, 2 move in the directions of arrows w and w' while being guided by the respective rolls. Between the positioning top roll 3.3 and the drive rolls 2, 2', the pair of R sheets 1, 1 move parallel to each other and keep an interval C downward.
上記の位置決め用ロール３．３及び駆動用ロール２．２
間を平行に間隔Ｃをおいて下降する一対のベルト１，１
の部分においては、ベルト１．１の両端部付近に図示し
ない一対の側面鋳型が設置され、同ベル） １．１と側
面鋳型とで囲まれる矩形断面の上下に伸びる鋳型部が形
成されている。The above positioning roll 3.3 and driving roll 2.2
A pair of belts 1, 1 descending parallel to each other with an interval C between them.
In the part, a pair of side molds (not shown) are installed near both ends of the belt 1.1, and a mold part extending above and below the rectangular cross section surrounded by the belt 1.1 and the side molds is formed. .
５．５は、はルト１，１を背面（本明細書においては上
記鋳型部の反対側の面を背面と呼ぶことにする。）より
冷却するための水冷パッドである。加は溶融金属保持用
のレードル、６は上記レードルＩからの溶融金属を収容
するタンディシェ、７は同タンディシェに設けられた注
湯ノズルで上記モールド０部の上部に開口している。８
はモールビ部における溶湯面、９は鋳型部で形成された
スラブ鋳片である。5.5 is a water cooling pad for cooling the bolts 1, 1 from the back side (in this specification, the surface opposite to the mold part will be referred to as the back side). 1 is a ladle for holding the molten metal, 6 is a tundishe for storing the molten metal from the ladle I, and 7 is a pouring nozzle provided in the tundishe, which is open at the upper part of the mold section 0. 8
9 is the molten metal surface in the molding part, and 9 is the slab slab formed in the mold part.
このような構成を有する従来のツイン・はルト式連続鋳
造装置においては、一対のエンドレスの金属製ベルト１
，１は、ロール２，２によりそれぞれ、一定速度で駆動
されており、この一対のベルトとベルト端部に位置する
一対の側面鋳型との間で構成される矩形断面を有する上
記モールド部に、タンディシェ６より溶融金属が注湯用
ノズル７により連続的に注入される。エンドレスで駆動
されているベル）１．１’は上記のように水冷パラ）’
５．５により背面から冷却されているので、（ルト１，
１間に注入された溶融金属は順次冷却されて凝固してス
ラブ鋳片９が形成され、同鋳片９はロール２，２の周り
を移動するベルト１，１から離れて更に下方に送られる
。In a conventional twin-rut type continuous casting machine having such a configuration, a pair of endless metal belts 1
, 1 are driven at a constant speed by rolls 2, 2, respectively, and the mold part has a rectangular cross section formed between the pair of belts and a pair of side molds located at the end of the belt. Molten metal is continuously injected from the tundish 6 through a pouring nozzle 7. The endlessly driven bell) 1.1' is a water-cooled para) as described above.
Since it is cooled from the back by 5.5, (root 1,
The molten metal injected between the belts 1 and 1 is sequentially cooled and solidified to form a slab slab 9, which is sent further downward away from the belts 1, 1 moving around the rolls 2, 2. .
上記従来のツイン・ベルト式連続鋳造装置の注湯ノズル
付近の状態を第６図に示す。注湯ノズル７の厚さＡは、
強度上及び製造上の制約によって、一定値以上に薄くす
ることは不可能である。このために、両ベルト１，１で
構成される間隙Ｃ（スラブの厚さに和尚）を、極力小さ
くしてスラブ厚さを小さくしよ５とすると、ベルト１，
１′と注湯ノズル７の側面が接近することとなる。溶湯
面８付近の溶融金属は水冷・でツ）”５．５’により冷
却されており、一方、注湯ノズル７の外面に接する付近
の溶融金属もノズルからの抜熱により冷却されるために
、イル） １．１と注湯ノズル７の側面が接近すればす
る程、符号１３で示される凝固物の橋渡し状の皮はりが
溶湯面８の付近で生ずることになる。この皮はり１３が
生ずると、駆動されているベルト１゜１によって注湯ノ
ズル７は下向きの力を受けるので、注湯ノズル７の破損
を生ずる欠点があった。FIG. 6 shows the state of the vicinity of the pouring nozzle of the conventional twin-belt continuous casting apparatus. The thickness A of the pouring nozzle 7 is
Due to strength and manufacturing constraints, it is impossible to reduce the thickness beyond a certain value. For this purpose, if we make the slab thickness as small as possible by making the gap C (which is related to the thickness of the slab) between both belts 1 and 1 as small as possible, then belt 1,
1' and the side surface of the pouring nozzle 7 come close to each other. The molten metal near the molten metal surface 8 is cooled by water cooling, and on the other hand, the molten metal near the outer surface of the pouring nozzle 7 is also cooled by the heat removed from the nozzle. , Ill) 1.1 and the side surface of the pouring nozzle 7, the more a bridging skin of the solidified material shown by the reference numeral 13 will be formed near the molten metal surface 8. When this occurs, the pouring nozzle 7 is subjected to downward force by the belt 1.degree. 1 being driven, which has the disadvantage of causing damage to the pouring nozzle 7.
本発明は、このような問題点を解決することをその課題
とするものである。It is an object of the present invention to solve these problems.
本発明は上記ツイン・ベルト式連続鋳造装置において、
鋳造される溶湯は溶鋼のような溶融金属であって、導電
性を有していることに着目し、溶融金属を加熱するワン
・ターン式の誘導加熱コイルを溶湯面付近釦設置した。The present invention provides the above-mentioned twin belt continuous casting apparatus,
Focusing on the fact that the molten metal to be cast is a molten metal such as molten steel and has electrical conductivity, we installed a one-turn induction heating coil near the surface of the molten metal to heat the molten metal.
即ち、本発明は、上下方向に伸びる断面四角形のモード
部を有し、同モールド部は相対する二辺を構成する一対
の鋳型で形成されるツイン・ベルト式連続鋳造装置にお
いて、モールド部の注湯面の近傍の一対のベルトの背面
に互いに対向する一対のワン・ターン式誘導加熱コイル
を設けた。That is, the present invention has a mode part with a square cross section extending in the vertical direction, and the mold part is formed by a pair of molds forming two opposing sides. A pair of one-turn induction heating coils facing each other was installed on the back side of a pair of belts near the hot water surface.
本発明においては、注湯面の近傍においてベルトの背面
に設けた互いに対向する一対のワン・ターン式誘導加熱
コイルによって、溶湯面付近に存在する溶融金属内に誘
導電流が発生し、これによって溶融金属をジェール加熱
するので、溶湯面が凝固点以下に冷やされて凝固するこ
とがない。従って、鋳片を薄くするために一対のベルト
の間隔を狭くしても、注湯ノズルとベルトとの間を橋渡
しする凝固物の皮はりが生ずることが防止される。In the present invention, an induced current is generated in the molten metal near the molten metal surface by a pair of opposing one-turn induction heating coils provided on the back side of the belt near the pouring surface, which causes the molten metal to melt. Since the metal is gel-heated, the surface of the molten metal does not cool down below the freezing point and solidify. Therefore, even if the distance between the pair of belts is narrowed in order to make the slab thinner, the formation of a crust of coagulated material bridging the gap between the pouring nozzle and the belt can be prevented.
また、本発明では、一対のワン・ターン式誘導コイルを
採用しているために、それぞれのワン・ターン式誘導コ
イルではその鉄石内で独立に閉ループを形成する磁界が
形成されるために、ロスが少く効率よく溶融金属の加熱
が行なわれる。In addition, since the present invention employs a pair of one-turn induction coils, each one-turn induction coil generates a magnetic field that independently forms a closed loop within its iron stone, resulting in loss. The molten metal can be heated efficiently with less heat.
本発明の一実施例を第１図及び第２図によって説明する
。An embodiment of the present invention will be described with reference to FIGS. 1 and 2.
第１図及び第２図において、符号１〜８及び符号１〜５
罠よって示される部分は、第５図及び第６図に対応する
符号で示される部分と同一であるので、その説明を省略
する。In Figures 1 and 2, symbols 1 to 8 and symbols 1 to 5
Since the parts indicated by traps are the same as the parts indicated by the corresponding symbols in FIGS. 5 and 6, their explanation will be omitted.
本実施例においては、第２図に示されるよ５Ｋ、一対の
ベルト１，１とその端部付近に配置された一対の鋳型１
３．１３ とによって上下方向に伸びる矩形断面のモ
ールド部Ｍが形成されている。また、上記鋳型１３ 、
１３は矩形断面を有し、熱電導性の良好な銅等の材料で
作られている。In this embodiment, as shown in FIG.
3.13 A molded portion M having a rectangular cross section extending in the vertical direction is formed. In addition, the mold 13,
13 has a rectangular cross section and is made of a material such as copper that has good thermal conductivity.
９．９は溶湯面８の近傍の位置において冷却バッド５，
５′内のベル） １．１’の背面に設けられ縦断面がコ
字状のワン・ターン式の誘導コイル用の鉄石であり、１
０ 、１０’は銅チーープ等から成り上記鉄芯のまわり
を水平に取囲むワン・ターンコイルであって、上記鉄；
ｇ９．９’及びワン・ターンコイル１０ 、１０によっ
てそれぞれワン・ターン式誘導コイル１１゜１１′が形
成されている。また、１２ 、１２はワン・ターン式誘
導コイルにより生起される磁力線を示す。9.9 is a cooling pad 5 at a position near the molten metal surface 8;
Bell inside 5') 1.It is an iron stone for a one-turn type induction coil with a U-shaped longitudinal section and is installed on the back of 1'.
0 and 10' are one-turn coils made of copper or the like and horizontally surrounding the iron core;
g9.9' and the one-turn coils 10 and 10 form one-turn induction coils 11°11', respectively. Further, 12 and 12 indicate lines of magnetic force generated by the one-turn induction coil.
第１図に示すようにワン・ターン式誘導コイル１１ 、
１１’は溶湯面８近傍に互いに対向して設けられ、また
字２図に示すように、一対のはル）１．１’の幅方向の
中心線に対してほぼ対称の位置に設けられている。同ワ
ン・ターンコイル１０ 、１０’には適宜の周波数を有
する交流電流が印加される。As shown in FIG. 1, a one-turn induction coil 11,
11' are provided facing each other near the molten metal surface 8, and as shown in Figure 2, they are provided at approximately symmetrical positions with respect to the center line in the width direction of the pair of holes 1.1'. There is. An alternating current having an appropriate frequency is applied to the one-turn coils 10, 10'.
このようにワン・ターンコイル１０ 、１０’に交流電
流が流れることによって、それぞれの誘導コイルの周わ
りに、磁力線１２ 、１２’が誘起され、この磁力線は
溶融金属、即ち、主として溶湯面８近傍の溶融金属中を
通過することになる。しかも、溶融金属は導電性である
ために交互にその極性が切替わる磁力線１２ 、１２’
の周わりに電流が誘起され、この誘起電流てより、溶湯
面８近傍の溶融金属は、いわゆるジェール加熱を受ける
こととなる。従って、溶湯面８近傍が、冷却されて凝固
して皮はっか発生することを確実に防止することができ
るので、皮はりに伴う注湯ノズル７の破損等の事故を未
然に防ぐことができる。As the alternating current flows through the one-turn coils 10 and 10' in this way, magnetic lines of force 12 and 12' are induced around the respective induction coils, and these lines of magnetic force are generated in the molten metal, that is, mainly in the vicinity of the molten metal surface 8. It will pass through molten metal. Moreover, since the molten metal is conductive, the magnetic lines of force 12 and 12' alternately switch polarity.
A current is induced around the molten metal, and due to this induced current, the molten metal near the molten metal surface 8 undergoes so-called gel heating. Therefore, it is possible to reliably prevent the vicinity of the molten metal surface 8 from being cooled and solidified to cause flaking, thereby preventing accidents such as breakage of the pouring nozzle 7 due to flaking.
本実施例のワン・ターン式誘導コイルは第４図に示す、
トランス・ノζ−ス式訪導コイルに比し誘導効率の点で
優れている。即ち、トランス・パース式誘導コイルの場
合、第４図に示すように、それぞれ鉄石１００．１００
’に巻かれた銅製コイル１０１，１０１により生起され
る磁力線１０２は、互いに相対する如く、設置された鉄
芯１００＋１００を通過後、鉄芯の背面側の空間を通過
して、相手側の鉄芯に入る磁力線１０２を有する磁界を
形成するために、磁力線１０２が空間通過時にロスされ
る比率が大きくなり効率低下を来たす。また、コイル１
０１．１０１も数多く巻（必要があるために、銅線の直
径も細くせざるを得す、電流を多く流すことができない
。これに反し、ワン・ターン式誘導コイルの場合、第３
図にその詳細を示すように、磁界はそれぞれの鉄、Ｅ
ｃ、、９’内で独立に形成され、しかも、磁力線１２．
１２は鉄：ｒ！Ｉ９ ＊ ９’の背面の空間を通過する
ことなく鉄石内で閉ループを作るために、ロスが少なく
効率が犬である。また、ワン・ターン式であるためＫ、
コイル１０ 、１０’を中空にしてその聖断面積を大き
くとることができ、これによって水冷構造を採用し、か
つ大量の冷却水を流すことができるので、大電流を通ず
ることができ、強力な磁束密度を得ることができる。The one-turn induction coil of this example is shown in Figure 4.
It is superior in terms of induction efficiency compared to transformer-nosed visiting coils. That is, in the case of a transformer-perspective type induction coil, as shown in Fig. 4, ironstone 100 and 100
The magnetic lines of force 102 generated by the copper coils 101, 101 wound on the opposite sides pass through the installed iron cores 100+100, pass through the space on the back side of the iron cores, and pass through the space on the back side of the iron cores. In order to form a magnetic field having lines of magnetic force 102 entering the space, the ratio at which the lines of magnetic force 102 are lost when passing through space increases, resulting in a decrease in efficiency. Also, coil 1
01.101 also has a large number of turns (because it is necessary to make the diameter of the copper wire thinner, it is not possible to pass a large amount of current.On the other hand, in the case of a one-turn induction coil, the third
As shown in detail in the figure, the magnetic field is
c, , 9', and magnetic field lines 12.
12 is iron: r! Because it creates a closed loop within the ironstone without passing through the space behind I9*9', the loss is small and the efficiency is high. Also, since it is a one-turn type,
The coils 10 and 10' can be made hollow to have a large cross-sectional area, which allows a water-cooled structure to be adopted and a large amount of cooling water to flow, allowing large currents to pass through and a strong magnetic flux. density can be obtained.
以上の理由によって、本夫施例は、ワン・ターン式誘導
コイル１１ 、１１’を用いることによって、効率よく
、溶湯面８近傍の溶融金属を加熱することができる利点
がある。For the above reasons, the present embodiment has the advantage of being able to efficiently heat the molten metal near the molten metal surface 8 by using the one-turn induction coils 11, 11'.
また、本実施例において、溶湯面８近傍では、溶融金属
の圧力はほぼＯであるのに対して、ベル）１．１’の裏
面は、水冷パラ）”５．５’内の水流により水圧が掛っ
ている。このためにベルト１，１は、ともすると、注湯
ノズル７側に押されて、スラブ厚さが変動し易い欠点が
あったが、ワン・ターン式誘導コイル１１ 、１１’を
溶湯面８近傍に設置することにより、銅製の強磁性体で
あるベルト１．１はワン・ターン式誘導コイル１１ 、
１１側圧それぞれ吸引されて、水圧によりノズル７側に
寄ることはない。従って、ばル）１．１’の間隙は常に
一定に維持され、スラブも一定厚さのものを得ることが
できる。In addition, in this example, the pressure of the molten metal is approximately O near the molten metal surface 8, whereas the water pressure on the back side of the bell) 1.1' is due to the water flow in the water cooling For this reason, the belts 1, 1 are often pushed toward the pouring nozzle 7 side, which has the disadvantage that the slab thickness tends to fluctuate. By placing the belt 1.1 near the molten metal surface 8, the belt 1.1, which is a ferromagnetic material made of copper, becomes a one-turn induction coil 11,
11 side pressure is sucked, and the nozzle 7 side is not moved by the water pressure. Therefore, the gap between the burls) 1.1' is always kept constant, and a slab of constant thickness can be obtained.
更にまた、本実施例では、ワン・ターン式誘導コイル１
１ 、１１’が水冷パラＹ ５．５内圧設けられている
ので、同コイル１１．１１ は同パッド５，５によって
熱的に保護されると共に、ワン・ターンコイル１０゜１
０′を中空圧してその内部に冷却水を通す水冷構造を採
用することができ、これによって同コイル１１ 、１１
’の温度上昇を防ぎ、大電流を通すことができて強力な
磁束密度を得ることができる。Furthermore, in this embodiment, the one-turn induction coil 1
1 and 11' are provided with a water-cooled Para Y 5.5 internal pressure, the same coil 11.11 is thermally protected by the same pads 5 and 5, and the one-turn coil 10°1
It is possible to adopt a water-cooling structure in which the coil 0' is hollow and pressurized and cooling water is passed inside the coil 11, 11.
It prevents the temperature from rising, allows large currents to pass through, and provides strong magnetic flux density.
なお、本実施例においては、ベルト１，１は金属である
ので、ワン・ターン式誘導コイル１１ 、１１ により
誘導加熱（ジェール加熱）を受けるが、はルトの裏側を
水冷パラｖ ５．５により直接冷却されているので、ば
ルト自体が高温に加熱されることばない。In this embodiment, since the belts 1, 1 are made of metal, they are subjected to induction heating (gel heating) by the one-turn induction coils 11, 11, but the back side of the belt is heated by water cooling Para V 5.5. Since it is directly cooled, there is no need for the balt itself to be heated to high temperatures.
また、ワン・ターン式誘導コイル１１ 、１１’を設置
する位置は、上下方向のレベル的には、溶湯面８近傍を
、カバーするようにしてお（のが望ましい。Further, it is desirable that the one-turn type induction coils 11 and 11' be installed so as to cover the vicinity of the molten metal surface 8 in terms of the vertical level.
この場合、溶湯面８が連続鋳造装置の運転中に変動する
ので、変動式も見込んだコイルサイズにしておくのが望
ましい。In this case, since the molten metal surface 8 changes during operation of the continuous casting apparatus, it is desirable to select a coil size that takes into account the variation.
また、ばルト１，１からのワン・ターン式誘導コイル１
１ 、１１’の先端の距離は、ベルト冷却のための水流
を妨げない範囲で、極力ベルト１，１に近づけるのが磁
力線１２ 、１２’の強度、即ち磁束密度を確保する上
で望ましい。In addition, one-turn induction coil 1 from Balt 1,1
In order to ensure the strength of the magnetic lines of force 12, 12', that is, the magnetic flux density, it is desirable that the distance between the tips of the magnetic lines 1, 11' be as close to the belts 1, 1 as possible without interfering with the water flow for cooling the belts.
上記夾施例は、水冷パッドを有する型式のツイン・はル
ト式連鋳装置に係るものであるが、本発明はこれに限ら
ず水冷パッドに代えてスプレー等で冷却を行うものでも
よく、また、ワン・ターン誘導加熱コイルは要は注湯面
の近傍のベルトの背面に設ければよく、冷却パッド内に
設けたものに限られるものでもない。Although the above embodiments relate to a twin-rut type continuous casting apparatus having a water-cooling pad, the present invention is not limited to this, and cooling may be performed by spraying or the like instead of the water-cooling pad. In short, the one-turn induction heating coil may be provided on the back side of the belt near the pouring surface, and is not limited to being provided within the cooling pad.
本発明は次の効果を奏することができる。 The present invention can have the following effects.
即ち、ワン・ターン式誘導加熱コイルによって、溶湯面
付近の溶融金属が効率よ（加熱されるので、溶湯面が冷
却されて凝固し、ベルトと注湯ノズル間を橋渡しする皮
はりの発生が防止される。In other words, the one-turn induction heating coil efficiently heats the molten metal near the molten metal surface, which cools and solidifies the molten metal surface and prevents the formation of a crust that bridges the gap between the belt and the pouring nozzle. be done.
従って、この皮はりによって注湯ノズルが破損すること
を防ぐことができる。Therefore, the pouring nozzle can be prevented from being damaged by this skinning.
第１図は本発明の一実施例の説明図、第２図は第１図の
■−■断面図、第３図は本発明ワン・ターン式コイルの
作用を示す説明図、第４図はトランスバース式コイルの
作用を示す説明図、第５図は従来のツイン・はルト式連
続鋳造装置の説明図、第６図は第５図に示す従来のツイ
ン・ばルト式連続鋳造装置の注湯ノズル付近の状態を示
す説明図である。
１．１・・・金属製ベル）、 ２．２・・・駆動用
ロール。
３．３・・・位置決め用トップロール。
５．５・・・水冷パッド、７・・・注湯ノズル。
８・・・溶湯面、９．９・・・鉄石
１０．１０’・・・ワン・ターンコイル。
１１ 、１１・・・ワン・ターン式誘導コイル。
Ｍ・・・モールド９部、 １２．１２’・・磁
力線。
代理人 弁理士 坂 間 暁
外２名
第３閃
第４図
第５図
１ ＋′−９Fig. 1 is an explanatory diagram of one embodiment of the present invention, Fig. 2 is a sectional view taken along the line ■-■ of Fig. 1, Fig. 3 is an explanatory diagram showing the action of the one-turn type coil of the present invention, and Fig. 4 is an explanatory diagram of an embodiment of the present invention. An explanatory diagram showing the action of the transverse coil, Fig. 5 is an explanatory diagram of a conventional twin bolt type continuous casting machine, and Fig. 6 is an explanatory diagram of the conventional twin bolt type continuous casting machine shown in Fig. 5. It is an explanatory view showing the state near a hot water nozzle. 1.1...metal bell), 2.2... drive roll. 3.3...Top roll for positioning. 5.5...Water cooling pad, 7...Pouring nozzle. 8... Molten metal surface, 9.9... Iron stone 10.10'... One turn coil. 11, 11... One-turn induction coil. M... Mold 9 parts, 12.12'... Lines of magnetic force. Agent: Patent Attorney Akigai Sakama, 2 persons, 3rd Section, Figure 4, Figure 5, 1 +'-9
Claims (1)
ールド部は相対する二辺を構成する一対のベルトと他の
相対する二辺を構成する一対の鋳型で形成されるツイン
・ベルト式連続鋳造装置において、上記モールド部の注
湯面の近接の上記一対のベルトの背面に互いに対向する
一対のワン・ターン式誘導加熱コイルを設けたことを特
徴とするツイン・ベルト式連続鋳造装置。Twin-belt continuous casting has a mold part with a rectangular cross section extending in the vertical direction, and the mold part is formed by a pair of belts forming two opposing sides and a pair of molds forming the other two opposing sides. A twin-belt continuous casting device, characterized in that a pair of one-turn induction heating coils are provided opposite to each other on the back side of the pair of belts in the vicinity of the pouring surface of the mold section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6714988A JPH07112601B2 (en) | 1988-03-23 | 1988-03-23 | Twin belt type continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6714988A JPH07112601B2 (en) | 1988-03-23 | 1988-03-23 | Twin belt type continuous casting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01241357A true JPH01241357A (en) | 1989-09-26 |
| JPH07112601B2 JPH07112601B2 (en) | 1995-12-06 |
Family
ID=13336560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6714988A Expired - Lifetime JPH07112601B2 (en) | 1988-03-23 | 1988-03-23 | Twin belt type continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07112601B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04266464A (en) * | 1990-11-09 | 1992-09-22 | Ajax Magnethermic Corp | Molten metal continuous casting device, induction heating device and continuous casting method |
-
1988
- 1988-03-23 JP JP6714988A patent/JPH07112601B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04266464A (en) * | 1990-11-09 | 1992-09-22 | Ajax Magnethermic Corp | Molten metal continuous casting device, induction heating device and continuous casting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07112601B2 (en) | 1995-12-06 |
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