JPH0681659B2 - Side weir for continuous casting machine of thin metal strip - Google Patents
Side weir for continuous casting machine of thin metal stripInfo
- Publication number
- JPH0681659B2 JPH0681659B2 JP27319490A JP27319490A JPH0681659B2 JP H0681659 B2 JPH0681659 B2 JP H0681659B2 JP 27319490 A JP27319490 A JP 27319490A JP 27319490 A JP27319490 A JP 27319490A JP H0681659 B2 JPH0681659 B2 JP H0681659B2
- Authority
- JP
- Japan
- Prior art keywords
- side weir
- casting
- molten metal
- drum
- continuous casting
- 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.)
- Expired - Fee Related
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- Continuous Casting (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は一対の冷却ドラムを配設した鋳造機により薄帯
を連続的に鋳造する装置に関し、特に、当該鋳造時に前
記冷却ドラムの端面と接するサイド堰の構造に関する。Description: TECHNICAL FIELD The present invention relates to a device for continuously casting a thin strip by a casting machine provided with a pair of cooling drums, and particularly to an end surface of the cooling drum during the casting. Concerning the structure of the side weir that contacts.
〔従来の技術〕 最近、溶鋼等の溶融金属から最終製品形状に近い数mm程
度の厚みをもつ薄帯を連続鋳造方式によって製造する方
式が注目されている。この連続鋳造方式によるときに
は、従来のような多段階にわたる熱延工程を必要とする
ことがなく、また最終形状にする冷延工程も必要としな
いか軽度なもので良いため、工程及び設備の簡略化が図
られる。[Prior Art] Recently, a method of producing a thin strip having a thickness of about several millimeters, which is close to the shape of a final product, from a molten metal such as molten steel by a continuous casting method has attracted attention. This continuous casting method does not require a multi-step hot rolling process as in the past and does not require a cold rolling process to obtain the final shape or may be a light rolling process, which simplifies the process and equipment. Be promoted.
このような連続鋳造方式の一つとして、双ドラム方式
（一対の冷却ドラムによる方式）がある（特開昭60−13
7562号公報参照）。As one of such continuous casting systems, there is a twin-drum system (system with a pair of cooling drums) (Japanese Patent Laid-Open No. 60-13).
(See 7562 publication).
第３図は、この双ドラム方式に基づく装置例の概略を説
明するための斜視図である。この方式においては、この
図で示すように、互いに逆方向に回転する一対の冷却ド
ラム1a,1bを水平に配置し、冷却ドラム1a,1b及びサイド
堰2a,2bにより区画された凹部に湯溜り部３を形成す
る。タンディッシュ等の容器から注湯ノズルを介し、溶
融金属がこの湯溜り部３に注湯される。湯溜り部３に収
容された溶融金属４は、冷却ドラム1a,1bと接する部分
が冷却・凝固して凝固シェルとなる。FIG. 3 is a perspective view for explaining the outline of an example of an apparatus based on this twin drum system. In this system, as shown in this figure, a pair of cooling drums 1a and 1b rotating in opposite directions are horizontally arranged, and a pool of water is pooled in a recess defined by the cooling drums 1a and 1b and side dams 2a and 2b. Form part 3. Molten metal is poured into the basin 3 from a container such as a tundish via a pouring nozzle. The molten metal 4 contained in the basin 3 is cooled and solidified at the portions in contact with the cooling drums 1a and 1b to form a solidified shell.
この凝固シェルは、冷却ドラム1a,1bの回転に随伴さ
れ、一対の冷却ドラム1a,1bが互いに最も接近した位置
で向かい合う、いわゆるドラムギャップ部６に移動す
る。このドラムギャップ部６では、それぞれの冷却ドラ
ム1a,1bの表面で形成された凝固シェルが互いに圧着さ
れ、目的とする金属薄帯５となる。こゝで15は冷却ドラ
ム端面、16は冷却ドラム摺動面である。This solidified shell is accompanied by the rotation of the cooling drums 1a and 1b, and moves to a so-called drum gap portion 6 where the pair of cooling drums 1a and 1b face each other at the position closest to each other. In the drum gap portion 6, the solidified shells formed on the surfaces of the respective cooling drums 1a and 1b are pressure-bonded to each other to form the target metal ribbon 5. Here, 15 is an end surface of the cooling drum, and 16 is a sliding surface of the cooling drum.
かゝる薄板連続鋳造機において、前記サイド堰2a,2bは
例えば実開昭63−90548に見られるようにサイド堰ケー
スに収容された断熱材と該断熱材に植設されたベース部
材と該ベース部材の冷却ドラムに対応する面に植設され
たセラミックスより構成されている。そして、鋳造時は
サイド堰を冷却ドラム端面に押付け、上記セラミックス
を冷却ドラムによって接触・摺動させることによって隙
間をなくし溶鋼もれを防止している。また、サイド堰は
特開昭61−266160に示すように一般に振動が与えられて
おり、凝固シェルとサイド堰表面に附着する地金の縁切
りを行っている。また、かかるサイド堰にヒーターが設
けられており、サイド堰表面に不要な地金が附着・生成
し、鋳造トラブルが発生するのを防止するために、鋳造
前にサイド堰を予熱している。この予熱温度は、鋳造時
の湯溜りの溶融金属温度に近いほど好ましい。In such a thin plate continuous casting machine, the side weirs 2a, 2b include a heat insulating material housed in a side weir case, a base member planted in the heat insulating material, and The base member is made of ceramics that is planted on the surface corresponding to the cooling drum. At the time of casting, the side dam is pressed against the end surface of the cooling drum, and the ceramics are brought into contact and sliding with the cooling drum to eliminate the gap and prevent the molten steel from leaking. Further, as shown in JP-A-61-266160, the side weir is generally vibrated to cut the solidified shell and the metal attached to the surface of the side weir. Further, a heater is provided on the side weir, and the side weir is preheated before casting in order to prevent unnecessary metal from adhering and forming on the surface of the side weir and causing casting trouble. It is preferable that the preheating temperature be closer to the molten metal temperature of the pool when casting.
しかしながら、使用前に常温にて平坦に表面を仕上げた
サイド堰でも、上記予熱による効果を充分に発揮させる
温度（例えば鋼の鋳造の場合、約1000℃以上）まで予熱
すると、サイド堰に熱変形が生じ、該サイド堰の摺動面
の表面が平坦でなくなる。従ってこのサイド堰を冷却ド
ラム端面に押圧すると該冷却ドラム端面との間の隙間が
部分的に大きくなって、湯溜り部からの湯差しが生じた
り、または湯漏れが生じて鋳片両側端の形状を著しく損
い鋳造作業を中断するような場合も発生する。However, even if the side weir is finished with a flat surface at room temperature before use, if it is preheated to a temperature at which the above preheating effect can be sufficiently exerted (for example, in the case of steel casting, about 1000 ° C or higher), the side weir is thermally deformed. Occurs, and the surface of the sliding surface of the side weir becomes uneven. Therefore, if this side dam is pressed against the end surface of the cooling drum, the gap between the end surface of the cooling drum and the end surface of the cooling drum will be partially enlarged, and there will be pouring of water from the basin or leakage of the slag will occur. There are also cases where the shape is significantly impaired and the casting operation is interrupted.
例えば鋼の鋳造の場合、0.1mm程度の隙間が湯漏れを生
じさせない限界と云われており、金属溶湯の種類によっ
ては、この限界値はさらに小さくなる。また例えば特開
平１−162250のように、サイド堰の金枠を熱膨張係数の
小さい金属材料又は熱伝導率の大きい金属材料で構成す
ることによって、サイド堰の熱変形を低減させる方法が
知られているが、再現性良く0.1〜0.05mm以下に熱変形
を抑えることは実用上は非常に困難である。For example, in the case of steel casting, a gap of about 0.1 mm is said to be the limit at which no molten metal leak occurs, and this limit value becomes even smaller depending on the type of molten metal. Further, there is known a method of reducing thermal deformation of the side weir by forming the metal frame of the side weir with a metal material having a small coefficient of thermal expansion or a metal material having a large thermal conductivity, as in JP-A-1-162250. However, it is practically difficult to suppress thermal deformation to 0.1 to 0.05 mm or less with good reproducibility.
そこで本発明は、このような予熱あるいは鋳造初期の溶
湯からの受熱によるサイド堰の変形による湯漏れ等の弊
害を防止することを目的とする。Therefore, an object of the present invention is to prevent the adverse effects such as the leakage of the molten metal due to the deformation of the side weir due to the preheating or the heat received from the molten metal at the initial stage of casting.
本発明は上記目的を達成するために、サイド堰の予熱あ
るいは鋳造初期の溶湯からの受熱による熱変形を前提と
して、鋳造開始時点又は鋳造初期にサイド堰の冷却ドラ
ム端面に接する摺動面が該冷却ドラムと密に接触するよ
うに上記摺動面をあらかじめ熱変形偏差量を補償する曲
面に形成しておくのである。すなわち、本発明は一対の
冷却ドラムとサイド堰との間に形成した湯溜り部に溶融
金属を注入し、次いで該溶融金属を前記冷却ドラムの回
転周面で冷却・凝固しながら金属薄帯を製造する連続鋳
造機のサイド堰において、前記冷却ドラム端面と接する
前記サイド堰の摺動面が連続鋳造時の熱変形偏差量の30
〜100％を補償する曲面に形成されてなるサイド堰を特
徴とする。In order to achieve the above object, the present invention is premised on preheating of the side weir or thermal deformation due to heat received from the molten metal at the beginning of casting, and the sliding surface contacting the end drum cooling drum end surface at the start of casting or at the beginning of casting is The sliding surface is previously formed into a curved surface for compensating the amount of thermal deformation deviation so as to be in close contact with the cooling drum. That is, according to the present invention, molten metal is injected into a molten metal pool formed between a pair of cooling drums and side dams, and then the molten metal is cooled and solidified on the rotating peripheral surface of the cooling drum to form a metal ribbon. In the side weir of the continuous casting machine to be manufactured, the sliding surface of the side weir that is in contact with the end surface of the cooling drum has a thermal deformation deviation amount of 30 during continuous casting.
It features side weirs that are formed on curved surfaces that compensate for ~ 100%.
以下、本発明を更に説明する。The present invention will be further described below.
作ず、金枠鋼構造帯に耐火物を装着したサイド堰を鋳造
開始前に925℃に予熱し、直径1200mm、幅800mmの冷却ド
ラムの端面に押圧して湯溜り部を構成した。次いで該湯
溜り部に溶湯を注入し、鋳造速度50m/minで厚さ3.5mmの
薄鋳片を鋳造した。The side weir, in which the refractory was attached to the steel frame steel frame was not preheated, was preheated to 925 ° C before the start of casting, and was pressed against the end surface of the cooling drum having a diameter of 1200 mm and a width of 800 mm to form a pool. Next, the molten metal was poured into the molten metal pool portion to cast a thin slab having a thickness of 3.5 mm at a casting speed of 50 m / min.
上記鋳造を開始した直後に、サイド堰と冷却ドラムとの
間に湯漏れが発生したが、そのまゝ約１分間強鋳造を続
け、その後、鋳造を中止してサイド堰の摺動面を調査
し、測定されたドラム摩耗痕の深さを双方のサイド堰の
高さ方向に整理して、これを第４図に示した。この図に
よると、サイド堰中段部（高さ220mm）の摩耗痕の深さ
（約0.5mm）が下段部及び上段部に比して大きい。平坦
な回転体であるドラム端部の摺動面により摩耗されたド
ラム摩耗痕もほぼ平坦と考えられるので、第４図の結果
は、サイド堰表面の中段部が上・下段部に比し凸に変形
したために、ドラム端部の摺動面により摩耗させられた
結果と解釈できる。すなわち鋳造時にサイド堰表面が0.
5mm程度凸状に熱変形していたことと推定できる。Immediately after the above casting was started, there was a leakage of water between the side dam and the cooling drum, but strong casting was continued for about 1 minute, then the casting was stopped and the sliding surface of the side dam was investigated. Then, the depths of the measured wear marks of the drum were arranged in the height direction of both side dams, and this is shown in FIG. According to this figure, the depth of the wear scar (about 0.5 mm) in the middle part of the side dam (height 220 mm) is larger than that in the lower part and the upper part. Since the drum wear marks worn by the sliding surface of the drum end, which is a flat rotating body, are considered to be almost flat, the results in Fig. 4 show that the middle part of the side weir surface is more convex than the upper and lower parts. It can be interpreted as a result of abrasion due to the sliding surface of the drum end due to the deformation. That is, the surface of the side weir is 0 during casting.
It can be inferred that it was thermally deformed into a convex shape by about 5 mm.
そこで上記サイド堰表面中段部を第５図に示すように予
め0.2mmの深さで凹状に切削して次回鋳造を実施したと
ころ、湯漏れがなく２トン完鋳できた。Then, the middle part of the surface of the side weir was previously cut into a concave shape with a depth of 0.2 mm as shown in FIG. 5, and the next casting was carried out.
すなわち、上記構造のサイド堰の場合は予め第５図に示
すような形状に切削することが必要である。That is, in the case of the side weir having the above structure, it is necessary to previously cut the side weir into a shape as shown in FIG.
次に、上記のサイド堰の熱変形を極力減少させるため、
金枠に耐火物をルーズに取付けてサイド堰を構成し、鋳
造開始前に1250℃に予熱したのち上記と同様の冷却ドラ
ムに押圧して湯溜り部を構成し、上記と同様の条件で薄
鋳片を鋳造した。Next, in order to reduce the thermal deformation of the side weirs as much as possible,
A refractory is loosely attached to the metal frame to form a side weir, which is preheated to 1250 ° C before the start of casting and then pressed against a cooling drum similar to the above to form a basin, which is thinned under the same conditions as above. A slab was cast.
鋳造開始後１分程度経過したとき、湯洩れが生じたが、
そのまゝ２分間鋳造を継続し、鋳造終了後のサイド堰の
ドラム摩耗痕を調べた。この結果を第６図に示す。この
図より、前例と同様に考察するとサイド堰は予熱によっ
てその中段部が0.5〜0.6mm程度の凹状の熱変形があった
と推定される。また、同構造のサイド堰をオフラインで
1250℃に加熱して摺動面の法線方向の変位を測定したと
ころ、中段部が上段部及び下段部に比し0.3〜0.5mm陥没
した凹状の熱変形を示した。About 1 minute after the start of casting, there was a leak of molten metal.
Casting was continued for 2 minutes until then, and the wear marks of the side weir drum after the casting was examined. The results are shown in FIG. From this figure, considering the same way as in the previous example, it is presumed that the side weir had a concave thermal deformation of about 0.5 to 0.6 mm in the middle part due to preheating. Also, the side weir of the same structure can be used offline.
When the displacement in the normal direction of the sliding surface was measured by heating to 1250 ℃, the middle part showed a concave thermal deformation with a depression of 0.3 to 0.5 mm compared to the upper part and the lower part.
従って、同構造のサイド堰にて中段部を第７図に示すよ
うに0.3mm凸の形状に予め研削したもので鋳造を実施し
たところ、湯漏れなく３分間の鋳造が可能であった。こ
の鋳造後、冷却ドラムによるサイド堰摩耗痕の深さをサ
イド堰の高さ方向で整理したのが第８図である。サイド
堰全高さに亘り、ほゞ同一の摩耗痕深さであることがわ
かる。Therefore, when casting was carried out by using the side weir of the same structure in which the middle part was ground in advance to a convex shape of 0.3 mm as shown in FIG. 7, casting was possible for 3 minutes without leakage of molten metal. After the casting, the depth of the side weir wear mark by the cooling drum is arranged in the height direction of the side weir, as shown in FIG. It can be seen that the wear scar depth is almost the same over the entire height of the side dam.
すなわち、上記構造のサイド堰の場合は、予め第７図に
示すような形状に切削することが必要である。That is, in the case of the side weir having the above structure, it is necessary to cut the side dam in advance as shown in FIG.
以上のように、本発明はサイド堰の構造・材質などに起
因して発生する熱変形に応じて、該サイド堰の表面を凸
状に又は凹状に予め常温にて切削形成するものである
が、この切削量は次のようにして設定される。すなわ
ち、上述のように実使用におけるサイド堰の冷却ドラム
に接する摩耗面の損耗量の計測結果、或いはサイド堰の
加熱試験による熱変形量の計測結果に基づき、推定され
たサイド堰の摺動面と直交する方向の熱変形偏差量の30
％以上100％未満を補償する形状に、サイド堰の摺動面
を形成するのである。補償する熱変形偏差量は押付け方
法、サイド堰の剛性、押付け力等によって定める。すな
わち、剛性の低い変形し易いサイド堰を高圧で押付けて
鋳造をスタートする場合には、補償量は比較的少なくて
も十分な結果を発揮する。逆に剛性の高いサイド堰に硬
質の耐火物を植設した場合には、100％乃至それに近い
補償をする必要がある。上限値100％以上の補償は過剰
補償で不必要であり、また下限値30％は実績で効果が生
じた限界の経験値である。As described above, according to the present invention, the surface of the side dam is preliminarily cut or formed to be convex or concave at room temperature according to the thermal deformation caused by the structure and material of the side dam. The cutting amount is set as follows. That is, as described above, the sliding surface of the side weir estimated based on the measurement result of the wear amount of the wear surface in contact with the cooling drum of the side weir in actual use or the measurement result of the thermal deformation amount by the heating test of the side weir. 30 of the thermal deformation deviation in the direction orthogonal to
The sliding surface of the side weir is formed in a shape that compensates for 100% or more and less than 100%. The amount of thermal deformation deviation to be compensated is determined by the pressing method, the rigidity of the side dam, the pressing force, etc. That is, when the side weir having low rigidity and being easily deformed is pressed at a high pressure to start casting, a sufficient result is exhibited even if the compensation amount is relatively small. On the other hand, if hard refractory is planted in the side weir with high rigidity, it is necessary to compensate 100% or more. Compensation for the upper limit of 100% or more is unnecessary due to overcompensation, and the lower limit of 30% is the limit empirical value at which the actual effect was produced.
本発明のサイド堰の構造のうち、冷却ドラム端面に接す
る摺動面を凸状に形成した実施例を第１図及び第２図に
より説明すると、図において、サイド堰2bは鋼製のサイ
ド堰ケース７に収容された不定形耐火物製の断熱材８に
硬質耐火物製のベース部材９が埋込まれ、該ベース部材
９の表面10に冷却ドラム端面に接してシールすべき摺動
面としてのセラミックスプレート11が冷却ドラム摺動面
16に対応する位置に埋込まれて構成されている。図中12
はヒーターでサイド堰を予熱するものである。Of the structure of the side dam of the present invention, an embodiment in which the sliding surface in contact with the end surface of the cooling drum is formed in a convex shape will be described with reference to FIGS. 1 and 2. In the drawings, the side dam 2b is a steel side dam. A hard refractory base member 9 is embedded in an insulative refractory heat insulating material 8 housed in a case 7, and a sliding surface to be sealed by contacting the end surface of the cooling drum on the surface 10 of the base member 9 The ceramic plate 11 is the sliding surface of the cooling drum
It is embedded in the position corresponding to 16. 12 in the figure
Is to preheat the side weir with a heater.
かゝるサイド堰2bにおいて、本発明では第２図に示すよ
うにベース部材９の表面10を凸状に弯曲形成せしめ、同
時に冷却ドラム摺動面16に対応するセラミックスプレー
ト摺動面14も同様に弯曲形成させた。勿論、ベース部材
表面10を平坦状態にして、これに埋込むセラミックスプ
レート11の摺動面のみを凸状に弯曲形成してもよい。In such a side weir 2b, according to the present invention, the surface 10 of the base member 9 is convexly curved as shown in FIG. 2, and at the same time, the ceramic plate sliding surface 14 corresponding to the cooling drum sliding surface 16 is also the same. It was made to bend. Of course, the base member surface 10 may be flattened, and only the sliding surface of the ceramic plate 11 embedded therein may be convexly curved.
上記弯曲形成の程度は第７図に従った。The degree of the above curve formation was in accordance with FIG.
なお、ベース部材９の表面10を弯曲形成せしめるに際
し、あらかじめ、サイド堰の構造によってその弯曲形状
及び摩耗度合を把握しておく。When the surface 10 of the base member 9 is curved, the curved shape and the degree of wear should be grasped in advance by the structure of the side dam.
鋳造に際し、先ず、ヒーターによりサイド堰を予熱する
が、本実施例で使用した構造のサイド堰は凹状に熱変形
する。しかし、その変形量に応じてサイド堰のベース部
材表面を凸状に弯曲せしめているので、予熱終了後ほゞ
平坦状態となった。次いでかゝるサイド堰を冷却ドラム
端面に押付けるが、該サイド堰が上述の状態になってい
るので密接状態で押付けることができた。従って鋳造初
期から上記セラミックスプレートを冷却ドラム端面に隙
間なく均一に密着させることが可能となり、これにより
両者間の隙間をなくして鋳造初期の溶湯漏れを防止する
ことができた。At the time of casting, first, the side weir is preheated by the heater, but the side weir having the structure used in this example is thermally deformed into a concave shape. However, depending on the amount of deformation, the surface of the base member of the side weir was curved in a convex shape, so it became almost flat after preheating. Next, such a side weir was pressed against the end surface of the cooling drum, but since the side weir was in the above-mentioned state, it could be pressed in a close contact state. Therefore, the ceramic plate can be evenly adhered to the end surface of the cooling drum without any gap from the early stage of casting, whereby the gap between the two can be eliminated and the molten metal leakage at the initial stage of casting can be prevented.
この鋳造以降、本実施例で使用した構造のサイド堰を用
いるときは、摺動面を凸状に弯曲させた。この結果、溶
湯漏れを生じることなく鋳造することができた。After the casting, when the side weir having the structure used in this example was used, the sliding surface was curved in a convex shape. As a result, it was possible to perform casting without causing leakage of molten metal.
本発明のような双ドラムの連続鋳造方法においては、鋳
造初期が湯漏れ現象に対し特に重要となる。すなわち、
鋳造が続行されるとサイド堰及び冷却ドラムの熱変形が
より進捗し、初期の状態から変化するが、その進行程度
は緩やかであり、通常の硬さのサイド堰を使用すれば冷
却ドラムとの接触損耗の進捗により自ら密な接触状態を
維持するので、熱変形が進捗しても、ドラム〜サイド堰
間の隙間は増加することなく湯漏れは防止される。従っ
て鋳造初期の湯漏れを防ぐことが重要であり、本発明は
かゝる鋳造初期の湯漏れを確実に防止しうるのである。In the twin-drum continuous casting method as in the present invention, the initial stage of casting is particularly important for the molten metal leakage phenomenon. That is,
When casting continues, the thermal deformation of the side dam and cooling drum progresses more and changes from the initial state, but the progress is gradual, and if a side dam of normal hardness is used, it will not be Since the close contact state is maintained as the contact wear progresses, even if the thermal deformation progresses, the gap between the drum and the side dam does not increase and the leakage of molten metal is prevented. Therefore, it is important to prevent leakage of molten metal at the beginning of casting, and the present invention can reliably prevent leakage of molten metal at the beginning of casting.
本発明は以上の構成よって、鋳造初期のサイド堰熱変形
偏差量を補償し、該熱変形による溶湯漏れを防止するこ
とができる。したがって、サイド堰の熱変形を皆無にす
るような大掛りの設備は必要なく、また、初期シールを
達成するために、サイド堰摺動面を軟質の耐火物で構成
したり、サイド堰を強大な押付力で押付ける必要がな
い。このため、サイド堰の不必要な偏損耗を防止でき、
また過大なドラム駆動設備を必要とすることなく、形状
良好な金属薄帯の長時間鋳造が可能である等、多くの効
果を有する。With the above-described structure, the present invention can compensate the side weir thermal deformation deviation amount at the initial stage of casting and prevent molten metal leakage due to the thermal deformation. Therefore, there is no need for large-scale equipment to eliminate the thermal deformation of the side weir, and in order to achieve the initial seal, the side weir sliding surface is made of a soft refractory or the side weir is very strong. It is not necessary to press with a proper pressing force. Therefore, it is possible to prevent unnecessary uneven wear of the side weir,
Further, there are many effects such as the ability to cast a metal ribbon having a good shape for a long time without requiring an excessive drum driving facility.
第１図は本発明のサイド堰の正面部分断面図、 第２図は第１図の側面部分断面図、 第３図は双ドラム方式の連続鋳造機の斜視図、 第４図は冷却ドラムによる摩耗痕の深さとサイド堰高さ
方向位置との関係を示す図、 第５図は本発明におけるサイド堰高さ方向位置とサイド
堰最凸部からの切削量との関係を示す図、 第６図は他の実施例における冷却ドラムによる摩耗痕の
深さとサイド堰高さ方向位置との関係を示す図、 第７図は本発明におけるサイド堰高さ方向位置とサイド
堰最凸部からの切削量との関係を示す図、 第８図は第７図の場合のドラムによる摩耗深さとサイド
堰高さ方向位置との関係を示す図である。 1a,1b……冷却ドラム、 2a,2b……サイド堰、３……湯溜り部、 ４……溶融金属、５……金属薄帯、 ６……ドラムギャップ部、７……サイド堰ケース、 ８……断熱材、９……ベース部材、 10……ベース部材表面、 11……セラミックスプレート、 12……ヒーター、 14……セラミックスプレート摺動面、 15……冷却ドラム端面、 16……冷却ドラム摺動面。1 is a partial front sectional view of a side weir of the present invention, FIG. 2 is a partial side sectional view of FIG. 1, FIG. 3 is a perspective view of a twin-drum type continuous casting machine, and FIG. 4 is a cooling drum. FIG. 6 is a diagram showing the relationship between the depth of wear marks and the position of the side weir in the height direction. FIG. 5 is a diagram showing the relationship between the position of the side weir in the height direction and the cutting amount from the side weir most convex portion in the present invention. FIG. 7 is a diagram showing the relationship between the depth of wear marks by the cooling drum and the position in the side weir height direction in another embodiment, and FIG. 7 is the cutting from the side weir height direction position and the side weir most convex portion in the present invention. FIG. 8 is a diagram showing the relationship with the amount, and FIG. 8 is a diagram showing the relationship between the depth of wear by the drum and the position in the height direction of the side dam in the case of FIG. 1a, 1b ... Cooling drum, 2a, 2b ... Side weir, 3 ... Hot water pool, 4 ... Molten metal, 5 ... Metal ribbon, 6 ... Drum gap, 7 ... Side weir case, 8 ... Insulation material, 9 ... Base member, 10 ... Base member surface, 11 ... Ceramic plate, 12 ... Heater, 14 ... Ceramic plate sliding surface, 15 ... Cooling drum end surface, 16 ... Cooling Drum sliding surface.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 筒井 康志 福岡県北九州市八幡東区枝光１―１―１ 新日本製鐵株式会社設備技術本部内 (56)参考文献 実開 昭63−150741（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasushi Tsutsui 1-1-1 Edamitsu, Hachimanto-ku, Kitakyushu City, Fukuoka Prefecture, Nippon Steel Works, Ltd. (56) References: 63-150741 , U)
Claims (1)
した湯溜り部に溶融金属を注入し、次いで該溶融金属を
前記冷却ドラムの回転周面で冷却・凝固しながら金属薄
帯を製造する連続鋳造機のサイド堰において、前記冷却
ドラム端面と接する前記サイド堰の摺動面が連続鋳造時
の熱変形偏差量の30〜100％を補償する曲面に形成され
てなることを特徴とする金属薄帯の連続鋳造機用サイド
堰。1. A molten metal is poured into a molten metal pool formed between a pair of cooling drums and a side weir, and then the molten metal is cooled and solidified on a rotating peripheral surface of the cooling drum to form a metal ribbon. In the side weir of the continuous casting machine to be manufactured, the sliding surface of the side weir that is in contact with the end surface of the cooling drum is formed into a curved surface that compensates for 30 to 100% of the amount of thermal deformation deviation during continuous casting. Side weir for continuous casting machine for thin metal strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27319490A JPH0681659B2 (en) | 1990-10-15 | 1990-10-15 | Side weir for continuous casting machine of thin metal strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27319490A JPH0681659B2 (en) | 1990-10-15 | 1990-10-15 | Side weir for continuous casting machine of thin metal strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04157047A JPH04157047A (en) | 1992-05-29 |
| JPH0681659B2 true JPH0681659B2 (en) | 1994-10-19 |
Family
ID=17524415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27319490A Expired - Fee Related JPH0681659B2 (en) | 1990-10-15 | 1990-10-15 | Side weir for continuous casting machine of thin metal strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0681659B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3045537U (en) * | 1997-07-23 | 1998-02-03 | リンレイテープ株式会社 | Masking equipment |
-
1990
- 1990-10-15 JP JP27319490A patent/JPH0681659B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3045537U (en) * | 1997-07-23 | 1998-02-03 | リンレイテープ株式会社 | Masking equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04157047A (en) | 1992-05-29 |
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