JPS63183750A - Side weir for metal strip continuous casting apparatus - Google Patents

Side weir for metal strip continuous casting apparatus

Info

Publication number
JPS63183750A
JPS63183750A JP1476687A JP1476687A JPS63183750A JP S63183750 A JPS63183750 A JP S63183750A JP 1476687 A JP1476687 A JP 1476687A JP 1476687 A JP1476687 A JP 1476687A JP S63183750 A JPS63183750 A JP S63183750A
Authority
JP
Japan
Prior art keywords
face
drum
side weir
cooling drum
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.)
Pending
Application number
JP1476687A
Other languages
Japanese (ja)
Inventor
Kiyomi Shio
塩 紀代美
Isao Mizuchi
水地 功
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP1476687A priority Critical patent/JPS63183750A/en
Publication of JPS63183750A publication Critical patent/JPS63183750A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637Accessories therefor
    • B22D11/0648Casting surfaces
    • B22D11/066Side dams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To prevent insertion of molten metal caused by developing at gap between circumferential face of a drum and end part of a side weir even if pushing force of the side weir is reduced to the circumferential face of the cooling drum by forming end part abutting on surface of the cooling drum of the side weirs arranged in parallel so as to divide side parts of molten basin part, to end slender-shape. CONSTITUTION:To one part of the cooling drum 1a, the other part of drum 1b is arranged as shifting toward axial direction on the same plane and the side weirs 2a, 2b are arranged over from the side face of one part to the circum ferential face of the other part, and metal strip 4 is continuously cast from molten metal 3 formed between them. The end face of the side weir 2a, 2b partitioning both sides of the molten metal pool 3 has slender-shape of circular or taper-like, etc., so that the contacting area becomes narrow. Therefore, in case the end face of the side weir 2a, 2b is pushed to the circumferential part of the cooling drum 1a, 1b by weak pushing force, the gap between the end face of the side weir and the circumferential face of the drum can be maintained to so little gap that the insertion does not develop.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、溶融金属を急冷凝固することにより金属薄帯
を直接的に製造する連続鋳造装置の冷却ドラムに当接さ
れるサイド堰に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a side weir that is brought into contact with a cooling drum of a continuous casting machine that directly produces metal ribbon by rapidly cooling and solidifying molten metal.

〔従来の技術〕[Conventional technology]

溶鋼等の溶融金属を冷却ドラム表面に注湯し、これを連
続的に薄帯に鋳造する装置として、いわゆるツインドラ
ム式の連続鋳造装置がある。このような連続鋳造装置と
しては、たとえば第4図にその概略を示したように、製
造される金属薄帯の幅を自由に調節することができるも
のが、特開昭57−94456号公報で提案されている
2. Description of the Related Art There is a so-called twin-drum continuous casting device that pours molten metal such as molten steel onto the surface of a cooling drum and continuously casts it into a thin strip. As an example of such a continuous casting apparatus, as shown schematically in FIG. 4, there is a device that can freely adjust the width of the metal ribbon to be produced, as disclosed in Japanese Patent Application Laid-Open No. 57-94456. Proposed.

すなわち、一方の冷却ドラム1aに対して他方の冷却ド
ラム1bを同一平面上で軸方向に関して移動可能なよう
に配置し、これら冷却ドラムla、 lbの一方の側面
から他方の周面にかけてサイド[2a。
That is, one cooling drum 1a is arranged such that the other cooling drum 1b is movable in the axial direction on the same plane, and the side [2a .

2bを設けている。この形式の連続鋳造装置においては
、冷却ドラムla、 lb相互のずらし量を変えること
により、その間に形成される溶湯ブールの幅りを目的と
する薄帯製品の板幅に調整することができる。したがっ
て、一台の装置により各種サイズの製品を製造すること
ができる。また、製造する金属薄帯の厚みを変更すると
きには、冷却ドラムla、 lb間の間隙を調整する。
2b is provided. In this type of continuous casting apparatus, by changing the amount of displacement between the cooling drums la and lb, the width of the molten metal boule formed therebetween can be adjusted to the desired width of the ribbon product. Therefore, products of various sizes can be manufactured using one device. Furthermore, when changing the thickness of the metal ribbon to be manufactured, the gap between the cooling drums la and lb is adjusted.

このようにして、所定の幅及び厚みをもつ金属薄帯を、
一台の連続鋳造装置によって製造することができる。
In this way, a metal ribbon with a predetermined width and thickness is
It can be manufactured using one continuous casting machine.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

この形式の連続鋳造装置を使用して金属薄帯を製造する
とき、サイド堰2a、 2bの端面が冷却ドラムla、
  lbの周面に当接する個所に湯差しが発生し易い。
When producing metal ribbon using this type of continuous casting equipment, the end surfaces of the side weirs 2a and 2b are connected to the cooling drum la,
Hot water leaks are likely to occur in areas that contact the circumferential surface of the lb.

この湯差しがあると、サイド堰2a、 2bと冷却ドラ
ムla、 lbとの間隙に鋳バリが生じ、冷却ドラムl
a、 lbの円滑な回転が阻害される。また、鋳バリに
よって間隙が拡大し、極端な場合にはその間隙から湯漏
れが生じ、操業不可能な状態に至ることにもなる。
If this hot water jug is present, casting burrs will form in the gaps between the side weirs 2a, 2b and the cooling drums la, lb, causing damage to the cooling drum l.
The smooth rotation of a and lb is inhibited. In addition, the gap expands due to cast burrs, and in extreme cases, leakage of molten metal may occur from the gap, resulting in a state where operation is impossible.

そこで、この湯差しを抑制又は防止するため、サイド堰
2a、 2bを高い押圧力で冷却ドラムla、 lbの
周面に押し付けることが必要となる。しかし、この押圧
力を高めると、回転時に冷却ドラムla。
Therefore, in order to suppress or prevent this pouring, it is necessary to press the side weirs 2a, 2b against the circumferential surfaces of the cooling drums la, lb with a high pressing force. However, if this pressing force is increased, the cooling drum la will be damaged during rotation.

Ibが受ける摩擦が大きくなり、冷却ドラムla、 l
bの回転に使用される駆動力が有効に働かない。
The friction that Ib receives increases, and the cooling drums la, l
The driving force used to rotate b does not work effectively.

また、このサイド堰2a、 2bと冷却ドラムla、 
 lb周面との関係は、第4図に示したような冷却ドラ
ムla、 lbを相互にずらす形式の連続鋳造装置に限
った問題でもない。たとえば、冷却ドラムの側面に当接
させることなく、固定式に配置した一対の冷却ドラムの
一方の周面から他方の周面にかけてサイド堰を設ける形
式の連続鋳造装置においても生じるものである。
In addition, these side weirs 2a, 2b and the cooling drum la,
The relationship with the circumferential surface of lb is not a problem limited to a continuous casting apparatus of the type in which the cooling drums la and lb are mutually shifted as shown in FIG. For example, this problem also occurs in a continuous casting apparatus in which a side weir is provided from one peripheral surface to the other peripheral surface of a pair of cooling drums that are fixedly arranged without contacting the side surfaces of the cooling drums.

そこで、本発明は、サイド堰を冷却ドラム周面に押圧す
る力を小さくしても、その間隙に生じる墨差しを効果的
に抑制又は防止することができるサイド堰を提供するこ
とを目的とする。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a side weir that can effectively suppress or prevent inking occurring in the gap even if the force pressing the side weir against the circumferential surface of the cooling drum is reduced. .

〔問題点を解決するための手段〕[Means for solving problems]

本発明のサイド堰は、その目的を達成するために、冷却
ドラムの表面に形成される湯溜り部の側部を区画するよ
うに、並置した一対の冷却ドラムの表面に配置されたサ
イド堰であって、前記冷却ドラムの表面に当接する前記
サイド堰の端部が先細状に形成されていることを特徴と
する。
In order to achieve this purpose, the side weir of the present invention is a side weir placed on the surfaces of a pair of cooling drums that are juxtaposed to partition the sides of a pool formed on the surfaces of the cooling drums. The cooling drum is characterized in that an end portion of the side weir that comes into contact with the surface of the cooling drum is formed into a tapered shape.

〔実施例〕〔Example〕

以下、図面を参照しながら、実施例により本発明の特徴
を具体的に説明する。
Hereinafter, the features of the present invention will be specifically explained using examples with reference to the drawings.

第1図は、本発明のサイド堰を連続鋳造装置に組み込ん
で、金属薄帯を製造している状態を示す図である。
FIG. 1 is a diagram showing a state in which the side weir of the present invention is incorporated into a continuous casting apparatus to manufacture a metal ribbon.

この連続鋳造装置における一方の冷却ドラム1aに対し
て、他方の冷却ドラム1bが同一平面上で平行に配置さ
れている。他方の冷却ドラム1bはその軸方向に移動す
ることができ、これによって一方の冷却ドラム1aの側
面1a+  と他方の冷却ドラム1bの側面11)+ 
 との間の距離を適宜調節することができる。また、こ
の冷却ドラム1bは冷却ドラム1aに対して近接・離間
するように配置されており、これにより面冷却ドラムl
a、 Ib間の間隙が調整される。
In this continuous casting apparatus, one cooling drum 1a and the other cooling drum 1b are arranged parallel to each other on the same plane. The other cooling drum 1b can be moved in its axial direction, so that the side surface 1a+ of the one cooling drum 1a and the side surface 11)+ of the other cooling drum 1b
The distance between the two can be adjusted as appropriate. Further, the cooling drum 1b is arranged so as to be close to and separated from the cooling drum 1a, so that the surface cooling drum l
The gap between a and Ib is adjusted.

そして、これら冷却ドラムla、 lbの周面が形成す
る上部空間の側方を仕切るように、一方の冷却ドラムl
a、 lbの側面1a、、 1b+から他方の冷却ドラ
ムlb、 laの周面1b2. lazにかけてサイド
堰2a、 2bが設けられている。これらサイド堰2a
、 2bは、冷却ドラムla、  lbの側面1a+、
lb−ご当接する表面部2a+、 2b+と、周面部1
a2. lbzに当接する端面2a2゜2bi とを備
えている(第2図参照)。このようにして、冷却ドラム
la、 lbの周面部1a211b2とサイド堰2a、
 2bとにより囲まれた空間が作られ、その空間に上部
から溶湯を注湯することにより溶湯プール3が形成され
る。
Then, one cooling drum l is arranged so as to partition the upper space formed by the circumferential surfaces of these cooling drums la and lb.
a, lb side 1a,, 1b+ to the other cooling drum lb, 1a peripheral surface 1b2. Side weirs 2a and 2b are provided across laz. These side weirs 2a
, 2b is the side surface 1a+ of the cooling drum la, lb,
lb- Surface portions 2a+, 2b+ that come into contact with lb- and peripheral surface portion 1
a2. lbz (see FIG. 2). In this way, the peripheral surface portions 1a211b2 of the cooling drums la, lb and the side weirs 2a,
A space surrounded by 2b is created, and a molten metal pool 3 is formed by pouring molten metal into the space from above.

溶湯プール3は、冷却ドラムla、 lbに接触した部
分が冷却され、凝固シェルとなる。この凝固シェルは、
冷却ドラムla、 lbの回転によってロールギャップ
方向に移動する。この移動の過程で、凝固シェルが成長
し、ロールギャップ部で冷却ドラムla、 lbにより
押圧され、一体的な金属薄帯4にされる。
The portion of the molten metal pool 3 that comes into contact with the cooling drums la and lb is cooled and becomes a solidified shell. This solidified shell is
The rotation of the cooling drums la and lb moves them toward the roll gap. During this movement, a solidified shell grows and is pressed into an integral metal ribbon 4 by the cooling drums la, lb in the roll gap.

このとき、溶湯プール3の両側を仕切るサイド堰2a、
 2bの端面2!a、 2b2は、冷却ドラムla、 
lbの周面部lad、 Ib2に押圧されている。しか
し、この端面2a2+ 2b2が第4図において従来例
として示したように平坦な形状に成形されているとき、
端面2az、 2b2と周面部1a2. lbzとが接
触する面積が大きくなる。そのために、サイド堰2a、
 2bを周面部la2. Ib2に押しつける力が分散
されて、単位面積当たり小さなものとなる。そのため、
接触面積23ctlの端面2a*、 2b2に対して1
00kg以上の大きな押圧力をかけなければ、湯差しを
抑制するに必要である0、1m+o以下の微小な間隙を
もってサイド堰2a。
At this time, the side weir 2a that partitions both sides of the molten metal pool 3,
End face 2 of 2b! a, 2b2 are cooling drums la,
The peripheral surface portions lad and Ib of lb are pressed against each other. However, when these end surfaces 2a2+2b2 are formed into a flat shape as shown in the conventional example in FIG.
End surfaces 2az, 2b2 and peripheral surface portion 1a2. The area of contact with lbz becomes larger. For that purpose, the side weir 2a,
2b to the peripheral surface portion la2. The force pressing against Ib2 is dispersed and becomes small per unit area. Therefore,
1 for the end surfaces 2a* and 2b2 with a contact area of 23ctl
If a large pressing force of 0.00 kg or more is not applied, the side weir 2a has a minute gap of 0.1 m+o or less, which is necessary to suppress the pouring of hot water.

2bの端面2a2.2b2を冷却ドラムla、 lbの
周面部la2. Ib2 に押し付けることができなか
った。他方、このように大きな押圧力は、冷却ドラムl
a、 lbの円滑な回転を阻害する。
The end surfaces 2a2.2b2 of 2b are connected to the cooling drum la, the circumferential surface portion la2. I couldn't force it on Ib2. On the other hand, such a large pressing force
a, inhibits smooth rotation of lb.

そこで、本実施例にあっては、これらサイド堰2a、 
2bの端面2a2+ 2b、を、第2図に示すように冷
却ドラムla、 lbの周面部1a2.1112に対す
る接触面積が小さなものとなるように、先細の形状とし
ている。すなわち、同図(a)にあっては端面2a2.
2112を円形状にし、同図(b)にあっては端部近傍
にある両方の表面部2a+、 2b+にテーパを付けて
いる。このテーパは、表面部2at、 2b+の一方の
みに形成しても良い。或いはまた、同図(C)に示すよ
うな片刃のナイフェツジ状、同図(6)に示すような凹
突起状の先端にしても良い。
Therefore, in this embodiment, these side weirs 2a,
As shown in FIG. 2, the end surfaces 2a2+2b of the cooling drums 2b are tapered so that the contact area with the peripheral surfaces 1a2.1112 of the cooling drums 1a, 1b is small. That is, in the same figure (a), the end face 2a2.
2112 has a circular shape, and in the figure (b), both surface portions 2a+ and 2b+ near the ends are tapered. This taper may be formed only on one of the surface portions 2at and 2b+. Alternatively, the tip may have a single-edged knife shape as shown in Figure (C) or a concave protrusion as shown in Figure (6).

このように端面2az+ 2b2の面積を小さくすると
き、サイド堰2a、 2bを冷却ドラムla、  lb
の周面部1a211b2に向けて押し付ける押圧力が、
その小さな面積に加わることになる。したがって、小さ
な押圧力であってもサイド堰2a、2bの端面2az、
 2btと冷却ドラムla、 lbの周面部1a2.1
b2との間の間隙を湯差しが生じない0.1ml11以
下の微小間隙に維持することが可能となる。
When reducing the area of the end faces 2az+2b2 in this way, the side weirs 2a and 2b are replaced by cooling drums la and lb.
The pressing force to press toward the peripheral surface portion 1a211b2 is
It will be added to that small area. Therefore, even with a small pressing force, the end faces 2az of the side weirs 2a, 2b,
2bt and cooling drum la, peripheral surface part 1a2.1 of lb
It becomes possible to maintain the gap with b2 to a minute gap of 0.1 ml or less where no hot water is generated.

第3図は、この接触面積と押圧力とが湯差しに与える影
響を示したグラフである。なお、ここで、湯差し量Mは
、鋳片1mあたりに500−以上の高さの鋳バリが発生
した長さくm)を100倍してパーセント表示した値に
よって判定した。この図から明らかなように、接触面積
を小さくするとき、僅かな押圧力によって湯差しが抑制
されることが判る。
FIG. 3 is a graph showing the influence of this contact area and pressing force on the hot water jug. Here, the pouring amount M was determined by multiplying by 100 the length (m) at which burrs with a height of 500 or more were generated per 1 m of slab and expressed as a percentage. As is clear from this figure, when the contact area is made small, the pouring is suppressed by a slight pressing force.

なお、この端部を先細としたサイド堰は、第1図に示し
たような形式の連続鋳造装置に限って使用されるもので
はなく、その他の形式の装置にも使用可能であることは
勿論である。たとえば、対をなした冷却ドラム双方の周
面部に接してサイド堰を配置する場合、サイド堰の両側
部を先細とすることにより、第3図で示したものと同様
な効果が得られる。
Note that this side weir with a tapered end is not limited to use in continuous casting equipment of the type shown in Figure 1, but can of course be used in other types of equipment as well. It is. For example, when side weirs are disposed in contact with the circumferential surfaces of both cooling drums in a pair, the same effect as shown in FIG. 3 can be obtained by tapering both sides of the side weirs.

〔発明の効果〕〔Effect of the invention〕

以上に説明したように、本発明のサイド堰を使用すると
き、サイド堰を冷却ドラムの周面部に押し付ける力が効
果的に作用し、サイド堰の端面と冷却ドラムの周面部と
の間の間隙を僅かな押圧力で湯差しの抑制又は防止に必
要な値に保つことができる。そのため、その間隙に鋳バ
リが発生することも少なくなり、湯漏れ等の操業停止に
至る状態が防止される。また、鋳バリの減少及び押圧力
の低減により、冷却ドラムの回転も円滑となる。
As explained above, when the side weir of the present invention is used, the force that presses the side weir against the circumferential surface of the cooling drum acts effectively, and the gap between the end surface of the side weir and the circumferential surface of the cooling drum is can be maintained at the value necessary to suppress or prevent boiling with a slight pressing force. Therefore, the occurrence of cast burrs in the gaps is reduced, and conditions such as leakage of hot metal that lead to operational stoppages are prevented. Furthermore, the rotation of the cooling drum becomes smoother due to the reduction in casting burrs and the reduction in pressing force.

このようにして、本発明によるとき、安定化した操業条
件の下で溶融金属から薄帯を直接的に製造することが可
能となる。
In this way, according to the invention it is possible to produce ribbon directly from molten metal under stabilized operating conditions.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明のサイド堰を組み込んだ連続鋳造装置の
概略を示し、第2図はそのサイド堰の要部を数例示し、
第3図は本発明の効果を具体的に表したグラフである。 また、′!J4図は、従来のサイド堰を備えた連続鋳造
装置の一例を示す。 特許出願人  新日本製鐵 株式會社 代  理  人  小  堀   益  (ほか2名)
第1図 第2図 (a)   (b)   (c)  (d)第3図 接触面積(Cm”l 第 4 図
FIG. 1 shows an outline of a continuous casting apparatus incorporating the side weir of the present invention, and FIG. 2 shows several examples of the main parts of the side weir.
FIG. 3 is a graph specifically showing the effects of the present invention. Also,'! Figure J4 shows an example of a conventional continuous casting device equipped with a side weir. Patent applicant: Nippon Steel Corporation Representative Masu Kobori (and 2 others)
Figure 1 Figure 2 (a) (b) (c) (d) Figure 3 Contact area (Cm"l Figure 4)

Claims (1)

【特許請求の範囲】[Claims] 1、冷却ドラムの表面に形成される湯溜り部の側部を区
画するように、並置した一対の冷却ドラムの表面に配置
されたサイド堰であって、前記冷却ドラムの表面に当接
する前記サイド堰の端部が先細状に形成されていること
を特徴とする金属薄帯連続鋳造装置用サイド堰。
1. A side weir arranged on the surfaces of a pair of cooling drums arranged side by side so as to partition the sides of a pool formed on the surface of the cooling drums, the side abutting against the surface of the cooling drums. A side weir for a metal ribbon continuous casting apparatus, characterized in that the end of the weir is formed into a tapered shape.
JP1476687A 1987-01-23 1987-01-23 Side weir for metal strip continuous casting apparatus Pending JPS63183750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1476687A JPS63183750A (en) 1987-01-23 1987-01-23 Side weir for metal strip continuous casting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1476687A JPS63183750A (en) 1987-01-23 1987-01-23 Side weir for metal strip continuous casting apparatus

Publications (1)

Publication Number Publication Date
JPS63183750A true JPS63183750A (en) 1988-07-29

Family

ID=11870196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1476687A Pending JPS63183750A (en) 1987-01-23 1987-01-23 Side weir for metal strip continuous casting apparatus

Country Status (1)

Country Link
JP (1) JPS63183750A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007000884A (en) * 2005-06-22 2007-01-11 Ishikawajima Harima Heavy Ind Co Ltd Twin-roll casting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007000884A (en) * 2005-06-22 2007-01-11 Ishikawajima Harima Heavy Ind Co Ltd Twin-roll casting machine

Similar Documents

Publication Publication Date Title
KR870001885A (en) Double Drum Continuous Casting Machine
KR920700805A (en) Thin continuous cast steel and its manufacturing method
CA2181643A1 (en) Continuous Casting Device
JPS63183750A (en) Side weir for metal strip continuous casting apparatus
US3978909A (en) Mold with convex sidewalls for continuous casting machines
JPS63180348A (en) Method and apparatus for continuously casting metallic strip
GB1565845A (en) Support and guide rolls for continuous casting plants
JP2544411B2 (en) Drum type continuous casting equipment
JPS6083754A (en) Twin roll type continuous casting machine
FR2652525B1 (en) CYLINDER FOR A DEVICE FOR DIRECT CONTINUOUS CASTING OF THIN STRIPS OF LIQUID METAL.
JPH0342152A (en) Method and apparatus for continuously casting between rolls thin metal product to be directly cold pressed
EP0362721A3 (en) Apparatus for continuous casting of metal strip
JPH038860B2 (en)
JP2005088063A (en) Cooling roll for strip caster
JPS6356337A (en) Production of narrow width metallic sheet
JPS6277152A (en) Method and apparatus for continuous casting of thin sheet using twin rolls
JPS63126651A (en) Belt type continuous casting method
JPS629758A (en) Continuous casting machine
JPS58218357A (en) Continuous casting device for thin plate
JPS55109549A (en) Continuous casting method of sheet
JPH0829399B2 (en) Continuous casting method for metal ribbon
JP2881998B2 (en) Method of changing width of twin-roll continuous casting machine and twin-roll continuous casting machine
JP2002153948A (en) Width changeable mold for continuous casting
JPS6268661A (en) Continuous casting machine for thin ingot
JPH08257714A (en) Continuous casting apparatus