JPH05277669A - Single belt type continuous casting machine - Google Patents
Single belt type continuous casting machineInfo
- Publication number
- JPH05277669A JPH05277669A JP7181592A JP7181592A JPH05277669A JP H05277669 A JPH05277669 A JP H05277669A JP 7181592 A JP7181592 A JP 7181592A JP 7181592 A JP7181592 A JP 7181592A JP H05277669 A JPH05277669 A JP H05277669A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- belt
- metal belt
- continuous casting
- weir
- 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.)
- Withdrawn
Links
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- Continuous Casting (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、裏面が冷却されて走行
する金属ベルト上に溶湯を注入し、凝固せしめて薄板鋳
片を製造する、単ベルト式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 single belt type continuous casting apparatus for producing a thin plate cast product by injecting and solidifying a molten metal on a running metal belt whose back surface is cooled.
【０００２】[0002]
【従来の技術】図４(Ａ)は公知の単ベルト式連続鋳造機
の正面の説明図である。裏面が水冷された金属ベルト１
は矢印８方向に斜め上方に走行する。金属ベルト１上に
は金属ベルト１と一緒に走行する側面堰２ａ，２ｂと、
走行させないで２ａと２ｂの間に配した仕切堰４が設け
られている。溶湯１１は金属ベルト１と側面堰２ａ，２
ｂと仕切堰４で形成された湯溜り１３に注入する。湯溜
り１３内の溶湯は金属ベルト１によって冷却され、金属
ベルト１上に底面凝固シェル１４を形成し、底面凝固シ
ェル１４は生長しながら金属ベルト１の走行に追従して
走行し、厚さｔの鋳片となって湯溜り１３から取り出さ
れる。2. Description of the Related Art FIG. 4A is a front view of a known single belt type continuous casting machine. Metal belt 1 with back side water cooled
Runs diagonally upward in the direction of arrow 8. On the metal belt 1, side weirs 2a and 2b running together with the metal belt 1,
A partition weir 4 is provided between 2a and 2b without traveling. The molten metal 11 is composed of the metal belt 1 and the side weirs 2a, 2
It is poured into a basin 13 formed by b and the partition weir 4. The molten metal in the pool 13 is cooled by the metal belt 1 to form a bottom surface solidified shell 14 on the metal belt 1. The bottom surface solidified shell 14 grows and follows the running of the metal belt 1, and has a thickness t. Is cast and is taken out from the pool 13.
【０００３】しかし図４の単ベルト式連続鋳造機は、仕
切堰４の下部の溶湯は深いために淀み易くかつ金属ベル
ト１によって冷却されるために温度が降下して、仕切堰
４の下部の壁面に凝固物９を形成し易い。この凝固物９
は底面凝固シェル１４の先端と連結するが、凝固シェル
１４は金属ベルト１と一緒に走行するためにこの連結が
破れる。鋳造中にこの連結や連結の破れが発生すると、
鋳片１２の表面にはいわゆるコールドシャット疵が発生
して鋳片１２の表面品位が損なわれる。However, in the single belt type continuous casting machine shown in FIG. 4, since the molten metal in the lower part of the partition weir 4 is deep, it easily stagnates and is cooled by the metal belt 1, so that the temperature drops and the lower part of the partition weir 4 is cooled. It is easy to form the solidified matter 9 on the wall surface. This coagulum 9
Is connected to the tip of the bottom solidified shell 14, but the solidified shell 14 runs along with the metal belt 1 so that this connection is broken. If this connection or connection breakage occurs during casting,
So-called cold shut flaws occur on the surface of the slab 12 and the surface quality of the slab 12 is impaired.
【０００４】また図４(Ｂ１)〜(Ｂ３)で湯溜り１３の溶
湯は、側面堰２ａ，２ｂ上にも側面凝固シェル１５を形
成する。この側面凝固シェル１５はイ−イ断面において
は図４の(Ｂ１)に示す如く高さがｈ1である。ロ−ロ断
面に達すると湯溜り深さはｈ2となり浅くなるが、図４
の(Ｂ１)で示した高さがｈ1の側面凝固シェル１５は、
先端が湯溜り１３から突出して、高さはｈ1のまゝで、
消失しない。ハ−ハ断面に達すると底面凝固シェルの凝
固が完了して鋳片１２となるが、高さｈ1の側面凝固シ
ェルは消失することがなく、図４の(Ｂ３)で図示した如
く、両端に側面凝固シェル１５が突出した形状の鋳片と
なる。この突出した側面凝固シェル１５は鋳片の圧延に
先立って除去するが、この除去作業は煩瑣である。Further, in FIGS. 4B1 to 4B3, the molten metal in the basin 13 also forms the side surface solidified shell 15 on the side surface dams 2a and 2b. The side solidified shell 15 has a height h 1 in the section Y-I as shown in FIG. 4 (B1). When reaching the roll cross section, the depth of the basin becomes h 2 and becomes shallower.
The side solidified shell 15 having a height h 1 shown in (B1) of
The tip protrudes from the pool 13, and the height is h 1
Does not disappear. When the bottom cross-section solidification shell is reached, solidification of the bottom solidification shell is completed to form a slab 12, but the side solidification shell of height h 1 does not disappear, and as shown in (B3) of FIG. The side solidified shell 15 is a cast piece having a protruding shape. The protruding side solidified shell 15 is removed prior to the rolling of the slab, but this removing operation is troublesome.
【０００５】金属ベルト１の走行方向に関する特別の記
載はないが、特開昭６２−０１６８５１号および特願平
３−７１０４６号には、金属ベルトが水平方向に走行す
る単ベルト式連続鋳造装置が記載されている。金属ベル
トが水平方向に走行するこれ等の装置を用いると、コー
ルドシャット疵や突出した側面凝固シェルの発生は軽減
するが、しかしこれ等の発生を十分に防止する事は難し
い。Although there is no particular description regarding the running direction of the metal belt 1, JP-A-62-016851 and Japanese Patent Application No. 3-71046 disclose a single belt type continuous casting apparatus in which a metal belt runs horizontally. Have been described. The use of these devices in which the metal belt runs in the horizontal direction reduces the occurrence of cold shut flaws and protruding side solidified shells, but it is difficult to prevent them from occurring sufficiently.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、コールドシ
ャット疵や突出した側面凝固シェルの形成を更に防止す
ることができる、単ベルト式連続鋳造装置の提供を課題
としている。SUMMARY OF THE INVENTION It is an object of the present invention to provide a single belt type continuous casting apparatus capable of further preventing the formation of cold shut flaws and protruding side solidified shells.
【０００７】[0007]
【課題を解決するための手段】図１は本発明の単ベルト
式連続鋳造装置の説明図で、(Ａ）は正面の説明図、
(Ｂ)は平面の説明図である。図１で１は金属ベルトで、
入側プーリー１０ａと出側プーリー１０ｂの間に無端状
に張り渡されて、矢印８方向に、斜め下方に走行する。
尚金属ベルト１の裏面は、例えば冷却装置３によって冷
却されている。金属ベルト１上には、製造する鋳片１２
の幅に見合った間隔を隔てて、無端状に走行する一対の
側面堰２ａ，２ｂが載置されている。側面堰２ａ，２ｂ
は多数の側面堰ブロック（図示しない）を鎖状に連結す
る事によって無端状に走行させる事ができる。FIG. 1 is an explanatory view of a single-belt type continuous casting apparatus of the present invention, (A) is a front explanatory view,
(B) is an explanatory view of a plane. In FIG. 1, 1 is a metal belt,
It is stretched endlessly between the entry pulley 10a and the exit pulley 10b, and runs diagonally downward in the direction of arrow 8.
The back surface of the metal belt 1 is cooled by, for example, the cooling device 3. On the metal belt 1, there is a cast slab 12 to be manufactured.
A pair of side surface dams 2a and 2b that run in an endless manner are placed at intervals corresponding to the width of the. Side wall 2a, 2b
Can be run endlessly by connecting a number of side wall blocks (not shown) in a chain.
【０００８】金属ベルト１上にはまた、入側プーリー１
０ａ側の側面堰２ａと２ｂとの間に仕切堰４を設ける。
仕切堰４は金属ベルト１や側面堰２ａ，２ｂとは異な
り、走行させないで所定の位置に配する。側面堰２ａと
２ｂの出側には、側面堰２ａ，２ｂに隣接して一対の側
板５ａ，５ｂを設ける。尚側板５ａ，５ｂは製造する鋳
片１２の幅に見合った間隔を隔てて配されている。側板
５ａ，５ｂの出側には側板５ａ，５ｂと密接させて上下
で一対のロール６ａ，６ｂを設ける。On the metal belt 1, the entry side pulley 1 is also provided.
A partition weir 4 is provided between the side weirs 2a and 2b on the 0a side.
Unlike the metal belt 1 and the side weirs 2a and 2b, the partition weir 4 is arranged at a predetermined position without traveling. A pair of side plates 5a and 5b are provided adjacent to the side dams 2a and 2b on the exit side of the side dams 2a and 2b. The side plates 5a and 5b are arranged at intervals corresponding to the width of the cast slab 12 to be manufactured. A pair of upper and lower rolls 6a and 6b are provided in close contact with the side plates 5a and 5b on the exit side of the side plates 5a and 5b.
【０００９】図１の連続鋳造装置で、溶湯注入流１１は
金属ベルト１と側面堰２ａ，２ｂと仕切堰４で形成され
た湯溜り１３に注入する。湯溜り１３内の溶湯は金属ベ
ルト１によって冷却され金属ベルト１上に底面凝固シェ
ル１４を形成し、底面凝固シェル１４は厚さを増しなが
ら金属ベルト１に追従して矢印８方向に走行する。In the continuous casting apparatus of FIG. 1, the molten metal injection flow 11 is injected into the molten metal pool 13 formed by the metal belt 1, the side weirs 2a and 2b, and the partition weir 4. The molten metal in the pool 13 is cooled by the metal belt 1 to form a bottom surface solidified shell 14 on the metal belt 1. The bottom surface solidified shell 14 follows the metal belt 1 and travels in the direction of arrow 8 while increasing in thickness.
【００１０】本発明で湯溜り１３の深さは、時間Ｔに比
例して深くなる。一方底面凝固シェル１４の厚さは
（Ｔ)1/2に比例して生長する。従って時間Ｔの経過と共
に底面凝固シェル１４は生長するが、底面凝固シェル１
４の上方には常に溶湯がある。底面凝固シェル１４が出
側プーリー１０ｂに達した際には湯溜り１３の両側面に
は側面凝固シェル（図示しない）が既に形成されてい
る。出側プーリー１０ｂに達した後の湯溜り１３の側面
は、側面凝固シェルと側板５ａ，５ｂによつて支持され
る。側面凝固シェルを保護するために側板５ａ，５ｂは
側面堰２ａ，２ｂに近接させて配する事が望ましい。ロ
ール６ａ，６ｂに達して湯溜り１３内の溶湯は上ロール
６ａによって冷却されて上ロール６ａの表面に上面凝固
シェル１６を形成する。ロール６ａと６ｂにより底面凝
固シェル１４と上面凝固シェル１６とは一体化して、鋳
片１２となって取り出される。底面凝固シェル１４と上
面凝固シェル１６とを円滑に一体化させるために、ロー
ル６ａ，６ｂは側板５ａ，５ｂに密着させて配すること
が望ましい。In the present invention, the depth of the basin 13 increases in proportion to the time T. On the other hand, the thickness of the bottom solidified shell 14 grows in proportion to (T) 1/2 . Therefore, although the bottom surface solidified shell 14 grows with the lapse of time T, the bottom surface solidified shell 1
There is always molten metal above 4. When the bottom surface solidified shell 14 reaches the outlet pulley 10b, side surface solidified shells (not shown) are already formed on both side surfaces of the basin 13. The side surface of the basin 13 after reaching the outlet pulley 10b is supported by the side surface solidifying shell and the side plates 5a and 5b. It is desirable that the side plates 5a and 5b are arranged close to the side dams 2a and 2b in order to protect the side solidified shell. The molten metal in the pool 13 reaching the rolls 6a and 6b is cooled by the upper roll 6a to form an upper surface solidified shell 16 on the surface of the upper roll 6a. The bottom-side solidified shell 14 and the top-side solidified shell 16 are integrated by the rolls 6a and 6b, and the cast piece 12 is taken out. In order to smoothly integrate the bottom-side solidified shell 14 and the top-side solidified shell 16, it is desirable that the rolls 6a and 6b be disposed in close contact with the side plates 5a and 5b.
【００１１】[0011]
【作用】図１(Ａ)で、仕切堰４の近傍の湯溜りは浅いた
めに、溶湯は活発に流動して淀むことがない。このため
に仕切堰４の底部の壁面は常に溶湯に洗い流されて、凝
固物が付着することがない。また仕切堰４の近傍は湯溜
りが浅いために、仕切堰４の底部の壁面を別途に設けた
加熱装置（図示しない）で加熱する事も容易であり、凝
固物の付着を確実に防止する事ができる。In FIG. 1 (A), since the pool of water near the partition weir 4 is shallow, the molten metal does not actively flow and stagnant. For this reason, the wall surface at the bottom of the partition weir 4 is always washed away by the molten metal, and the solidified matter does not adhere. Further, since the pool of water near the partition weir 4 is shallow, it is easy to heat the wall surface of the bottom of the partition weir 4 by a heating device (not shown) provided separately, and the solidified substance is surely prevented from adhering. I can do things.
【００１２】図２は本発明の単ベルト式連続鋳造装置に
用いる他の仕切堰の説明図である。この仕切堰は、金属
ベルト１の上方と下方にそれぞれ配した磁極７ａ，７ｂ
の間に磁場を形成する。湯溜り１３を形成している溶湯
の先端部が、磁極７ａ，７ｂの間に形成された磁場を横
切り、図２の左方向に横切ると、横切る溶湯の先端部に
はローレンツの法則により電流が流れ、この電流は磁場
に作用して溶湯の先端部を図２の右方向に移動させる。
このために耐火レンガ等により壁面を形成しないでも、
磁場により溶湯の左方向への移動は遮断される。本発明
ではこの電磁力による電磁堰を配する位置の溶湯は浅い
ために、電磁堰は電磁力で溶湯を十分に遮断することが
できる。この電磁堰を用いる場合は、仕切堰の壁面がな
いため凝固物の形成もなく、コールドシャット疵を発生
させる事がない。FIG. 2 is an explanatory view of another partition weir used in the single belt type continuous casting apparatus of the present invention. The partition weir includes magnetic poles 7a and 7b arranged above and below the metal belt 1, respectively.
Creates a magnetic field between. When the tip of the molten metal forming the basin 13 crosses the magnetic field formed between the magnetic poles 7a and 7b and crosses to the left in FIG. 2, a current is applied to the tip of the molten metal that crosses according to Lorentz's law. This current flows and acts on the magnetic field to move the tip of the molten metal to the right in FIG.
For this reason, even if the wall surface is not made of fireproof brick,
The magnetic field blocks the movement of the melt to the left. In the present invention, since the molten metal at the position where the electromagnetic weir is arranged by the electromagnetic force is shallow, the electromagnetic weir can sufficiently block the molten metal by the electromagnetic force. When this electromagnetic weir is used, since there is no wall surface of the partition weir, no solidified matter is formed and cold shut flaws do not occur.
【００１３】図３は、本発明の単ベルト式連続鋳造機に
おける側面凝固シェル１５の説明図である。図１のニの
場所における湯溜り１３の深さはｈ3である。従って場
所ニにおける側面凝固シェルの高さは、図３(Ａ)に示し
た如くｈ3で高さが低い。図１の場所ホにおける湯溜り
１３の深さはｈ3よりも大きいｈ4である。従って場所ホ
における側面凝固シェルの高さはｈ4となる。この際、
場所ニで形成された高さｈ3の側面凝固シェルは、湯溜
り１３のメニスカスの下方に移行する。本発明では、鋳
片の出側に近づくにつれて湯溜り１３は深くなる。従っ
て鋳片の入側の湯溜り部で形成された側面凝固シェル
は、鋳片の出側では湯溜りのメニスカスの下方に移行
し、メニスカスから突出した側面凝固シェルは発生しな
い。FIG. 3 is an explanatory view of the side solidification shell 15 in the single belt type continuous casting machine of the present invention. The depth of the basin 13 at the location d in FIG. 1 is h 3 . Therefore, the height of the side surface solidified shell at the location d is h 3 as shown in FIG. The depth of the basin 13 at the place E in FIG. 1 is h 4 which is larger than h 3 . Therefore, the height of the side solidification shell at the place E is h 4 . On this occasion,
The side solidified shell formed at the location d and having a height h 3 moves below the meniscus of the basin 13. In the present invention, the basin 13 becomes deeper as it approaches the exit side of the slab. Therefore, the side surface solidified shell formed in the molten metal pool on the inlet side of the slab moves below the meniscus of the molten metal pool on the outlet side of the slab, and the side wall solidified shell protruding from the meniscus does not occur.
【００１４】[0014]
【発明の効果】本発明の単ベルト式連続鋳造機を用いる
と、コールドシャット疵が発生しないために優れた表面
性状の鋳片が得られる。また本発明では、鋳片に突出し
た側面凝固シェルが発生しないために、これを除去する
ための煩瑣な作業が不必要となる。EFFECTS OF THE INVENTION The single belt type continuous casting machine of the present invention can provide a slab having excellent surface properties because cold shut flaws do not occur. Further, according to the present invention, since the side solidified shell projecting on the cast piece is not generated, the troublesome work for removing the shell is unnecessary.
図１は本発明の単ベルト式連続鋳造機の例の説明図、図
２は本発明の単ベルト式連続鋳造機の電磁堰の説明図、
図３は本発明の単ベルト式連続鋳造機の側面凝固シェル
の説明図、図４は公知の単ベルト式連続鋳造機の説明
図、である。1 is an explanatory view of an example of a single belt type continuous casting machine of the present invention, FIG. 2 is an explanatory view of an electromagnetic weir of the single belt type continuous casting machine of the present invention,
FIG. 3 is an explanatory view of a side solidification shell of the single belt type continuous casting machine of the present invention, and FIG. 4 is an explanatory view of a known single belt type continuous casting machine.
１：金属ベルト、 ２ａ(２ｂ)：側面堰、 ３：冷却装
置、 ４：仕切堰、５ａ(５ｂ)：側板、 ６ａ(６ｂ)：
ロール、 ７ａ(７ｂ)：磁極、 ８：金属ベルト、凝固
シェル、側面堰の走行方向、 ９：凝固物、 １０ａ：
入側プーリー、 １０ｂ：出側のプーリー、 １１：注
入流、 １２：鋳片、 １３：湯溜り、 １４：底面凝
固シェル、 １５：側面凝固シェル、 １６：上面凝固
シェル。1: metal belt, 2a (2b): side weir, 3: cooling device, 4: partition weir, 5a (5b): side plate, 6a (6b):
Roll, 7a (7b): magnetic pole, 8: metal belt, solidified shell, running direction of side dam, 9: solidified product, 10a:
Inlet side pulley, 10b: Outlet side pulley, 11: Injection flow, 12: Cast slab, 13: Hot water pool, 14: Bottom solidified shell, 15: Side solidified shell, 16: Top solidified shell.
Claims (2)
０ｂ)の間に無端状に張り渡され斜め下方に走行する裏
面が水冷された金属ベルト(１)と、鋳片の幅に見合った
間隔を隔てて金属ベルト(１)上に載置され金属ベルト
(１)と同じ方向に同じ速度で無端状に走行する一対の側
面堰(２ａ)，(２ｂ)と、入側プーリー(１０ａ)側の側面
堰(２ａ)，(２ｂ)の間の金属ベルト(１)上に走行させな
いで所定の位置に配した仕切堰(４)と、側面堰(２ａ)，
(２ｂ)の出側に側面堰(２ａ)，(２ｂ)にそれぞれ隣接し
て設けた一対の側板(５ａ)，(５ｂ)と、側板(５ａ)，
(５ｂ)の出側に側板(５ａ)，(５ｂ)に密接させて設けた
上下で一対のロール(６ａ)，(６ｂ)とを有することを特
徴とする、単ベルト式連続鋳造装置。1. An entry side pulley (10a) and an exit side pulley (1)
0b) and the metal belt (1) whose end surface is stretched endlessly and runs diagonally downward and whose back surface is water-cooled, and the metal belt (1) placed on the metal belt (1) at an interval corresponding to the width of the slab. belt
A metal belt between a pair of side weirs (2a) and (2b) running endlessly in the same direction as (1) and at the same speed, and side weirs (2a) and (2b) on the entry side pulley (10a) side. (1) A partition weir (4) arranged at a predetermined position without traveling upward, a side weir (2a),
A pair of side plates (5a), (5b) provided adjacent to the side wall (2a), (2b) on the exit side of (2b), and a side plate (5a),
A single-belt type continuous casting apparatus having a pair of upper and lower rolls (6a), (6b) provided in close contact with the side plates (5a), (5b) on the exit side of (5b).
方にそれぞれ配した磁極(７ａ)，(７ｂ)の間に形成する
磁場を用いた電磁堰であることを特徴とする、請求項１
に記載の単ベルト式連続鋳造装置。2. The partition weir (4) is an electromagnetic weir using a magnetic field formed between magnetic poles (7a), (7b) arranged above and below the metal belt (1), respectively. Claim 1
The single-belt continuous casting machine described in 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7181592A JPH05277669A (en) | 1992-03-30 | 1992-03-30 | Single belt type continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7181592A JPH05277669A (en) | 1992-03-30 | 1992-03-30 | Single belt type continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05277669A true JPH05277669A (en) | 1993-10-26 |
Family
ID=13471438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7181592A Withdrawn JPH05277669A (en) | 1992-03-30 | 1992-03-30 | Single belt type continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05277669A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705057A (en) * | 2018-06-07 | 2018-10-26 | 上海大学 | A kind of roller belt-type thin-belt casting rolling all-in-one machine and its application method |
-
1992
- 1992-03-30 JP JP7181592A patent/JPH05277669A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705057A (en) * | 2018-06-07 | 2018-10-26 | 上海大学 | A kind of roller belt-type thin-belt casting rolling all-in-one machine and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990608 |