JPS61137652A - Continuous casting device for thin sheet - Google Patents
Continuous casting device for thin sheetInfo
- Publication number
- JPS61137652A JPS61137652A JP26002584A JP26002584A JPS61137652A JP S61137652 A JPS61137652 A JP S61137652A JP 26002584 A JP26002584 A JP 26002584A JP 26002584 A JP26002584 A JP 26002584A JP S61137652 A JPS61137652 A JP S61137652A
- Authority
- JP
- Japan
- Prior art keywords
- drums
- drum
- thin plate
- rings
- solidified
- 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
Links
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
- B22D11/0648—Casting surfaces
- B22D11/0651—Casting wheels
-
- 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
- B22D11/0622—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 casting wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】 〔本発明の産業分野Ｊ 本発明は薄板連続鋳造装置に関する。[Detailed description of the invention] [Industrial field of the present invention J The present invention relates to a continuous thin plate casting apparatus.
〔従来の連続鋳造機およびその欠点１
２本の内部水冷式ドラムとドラムの両端面に押し当てた
２つの固定堰でできる空間に溶湯を注湯し薄板を連続鋳
造するツインドラム方式連続鋳造機で（ｄ、固定堰壁面
での溶湯の凝固を防止するか或は固定堰壁面で凝固した
凝固物が鋳造を阻害しないように処理することが重要で
ある。このため鋳造前に固定堰壁面を相当高温に予熱し
ているが、ドラム端面に押し当てられた部分は温度降下
し、この部分で凝固物が生成し、この凝固物が固着して
成長すると、この部分は過凝固部分となり鋳片に圧延個
所として残存し鋳片の割れ等鋳片性状を著しく害してい
た。またこの部分は圧延されるため、ドラム端部を損傷
させる要因にもなり、従来ドラムと同等の材質のリング
状の薄板をドラム端面に取り付け、ドラム端部の損傷を
防止していた。しかしこの方法では凝固物は固着し鋳片
性状の改善には至っていなかった。[Conventional continuous casting machine and its disadvantages 1 A twin-drum continuous casting machine that continuously casts thin plates by pouring molten metal into the space created by two internal water-cooled drums and two fixed weirs pressed against both end surfaces of the drums. (d) It is important to prevent the molten metal from solidifying on the fixed weir wall surface, or to treat the solidified material on the fixed weir wall surface so that it does not interfere with casting.For this reason, the fixed weir wall surface must be treated before casting. Although it is preheated to a fairly high temperature, the temperature of the part pressed against the end of the drum drops, solidified material is formed in this part, and when this solidified material solidifies and grows, this part becomes an oversolidified part and the slab The rolling part remained as a rolling part and seriously damaged the properties of the slab, such as cracking of the slab.In addition, since this part was rolled, it also caused damage to the end of the drum. A thin plate was attached to the end face of the drum to prevent damage to the end of the drum.However, this method caused the solidified material to stick and did not improve the properties of the slab.
本発明は、従来のドラム端面に取υっけていた薄板のリ
ングを改善することにより、ドラム端部で生成する凝固
物を鋳造時常にドラムと同期していくようにし凝固物が
固着しないようにして安定に鋳造できる薄板連続鋳造装
置を提供することを目的とする。The present invention improves the conventional thin plate ring attached to the end of the drum so that the solidified material generated at the end of the drum is always synchronized with the drum during casting and prevents the solidified material from sticking. The purpose of the present invention is to provide a continuous thin plate casting device that can stably cast thin sheets.
そして、本発明は、上記目的を達成する手段として、ド
ラム端面に１）付ける薄板のリングを波形状あるいはギ
ヤ状にし、このリングをドラム周端部に配設する点にあ
る。すなわち本発明は、製造する金属帯板厚さに相当す
る間隙を置いてほぼ水平に並設した互いに回転方向を異
にする２本のドラムとこのドラムの端面に押し当てた２
個の固定堰によって形成される空間に溶鋼を注ぎ薄板を
得る連続鋳造装置において、ドラム端面にドラム材質と
同一或は同等の材質の薄板を着脱可能に取り付け、該薄
板のドラム面を波形状或はギヤ状にし２本のドラムで波
形及びギヤが所望の間隙をあけて噛み合うよう取り付け
てなることを特徴とする薄板連続鋳造装置である。The present invention, as a means for achieving the above object, consists in: 1) forming a thin plate ring attached to the end face of the drum into a corrugated or gear shape, and arranging this ring at the circumferential end of the drum; That is, the present invention consists of two drums that are arranged parallel to each other almost horizontally with a gap corresponding to the thickness of the metal strip to be manufactured, and that rotate in different directions.
In a continuous casting machine that pours molten steel into a space formed by a fixed weir to obtain a thin plate, a thin plate made of the same or equivalent material as the drum is removably attached to the end face of the drum, and the drum surface of the thin plate is shaped into a wave shape or This is a thin plate continuous casting machine characterized by having two gear-shaped drums attached so that the corrugations and gears mesh with each other with a desired gap.
以下、第１図及び第２図に基づいて本発明の詳細な説明
する。第１図は本発明の実施例である薄板連続鋳造装置
の縦断面図であり、第２図は同装置の２本のドラムと２
本の固定堰との部分拡大詳細図である、
〔装置の具体的構造〕
第１図及び第２図に示す装置は薄板鋳片３を鋳造する水
冷ドラム１ 、１’、水冷ドラム１，１′間の溶湯４の
洩れを防止するサイド固定せき２゜２′、溶鋼等の溶湯
４を溜めるタンディツシュ５などを主要構成部材として
いる。この装置を詳細に説明すると、水冷ドラム１，１
′は水平に並行して設置されており、図示しない駆動装
置により回転（矢示方向）駆動される。この水冷ドラム
１．１′は例えば銅または銅合金或は鋼材により形成さ
れ内部に水冷機構を内蔵するものであり、溶湯４との接
触面積を大きく得るため、相当大径のドラムとなってい
る。また水冷ドラム１，１′の両端部にはサイドをシー
ルするための耐火材からなる固定堰２，２′が例えば油
圧シリンダー８ 、８’ｌＣ押し当てられている。すな
わち２本の水冷ドラム１，１′と２個の固定堰２゜２′
で形成される空間に溶湯４が注湯されている。Hereinafter, the present invention will be explained in detail based on FIGS. 1 and 2. FIG. 1 is a longitudinal cross-sectional view of a thin plate continuous casting apparatus which is an embodiment of the present invention, and FIG. 2 shows two drums and two
[Specific structure of the device] The device shown in FIGS. 1 and 2 includes water-cooled drums 1 and 1' for casting thin plate slabs 3, and water-cooled drums 1 and 1. The main components include a side fixed weir 2°2' for preventing leakage of the molten metal 4 between the holes, and a tundish 5 for storing the molten metal 4 such as molten steel. To explain this device in detail, the water-cooled drums 1, 1
' are installed horizontally in parallel and are driven to rotate (in the direction of the arrow) by a drive device (not shown). This water-cooled drum 1.1' is made of, for example, copper, copper alloy, or steel and has a built-in water-cooling mechanism, and has a considerably large diameter in order to obtain a large contact area with the molten metal 4. . Furthermore, fixed weirs 2, 2' made of fireproof material are pressed against both ends of the water-cooled drums 1, 1', for example, by hydraulic cylinders 8, 8'lC for sealing the sides. That is, two water-cooled drums 1, 1' and two fixed weirs 2゜2'.
Molten metal 4 is poured into the space formed by.
注湯された溶湯４は水冷ドラム１．１′の表面に接触し
て冷却されできた凝固シェルは水冷ドラム１１′の回転
につれて一体化され鋳片３となる。この鋳片５はピンチ
ロール６により次工程へ搬送される。而して本発明の特
徴はドラム１．１′の各周側端面に幅狭の波形状あるい
はギア状の金属製リング７（以下スクレーパリングとい
う。）を嵌装する点にある、
〔スクレーパリングの作用効果〕
第２図に示すように、ドラム１１′の周側端部に、ドラ
ム１，１′と同等の材質のスクレーパリング７を取り付
けたことにより、ドラム１゜１′面と固定堰２，２′面
との境界部で生成する凝固物はスクレーパリング７の周
面に形成している歯形あるいは波形の凹凸部に噛み込ま
れ、ドラム１．１′と一体に回転するスクレーパリング
７と同期して下方に移行し、ドラム１．１′面で形成さ
れる凝固シェルと共に鋳片３に鋳造される。従って凝固
物は固定堰２．２′に固着することなく鋳造できるため
鋳片性状も良くドラム１゜１′の損傷も少なく安定して
鋳造できる。鋳造後鋳片の両端の凹凸部を切り落して製
品とする。The poured molten metal 4 comes into contact with the surface of the water-cooled drum 1.1', and the solidified shell that has been cooled is integrated into a slab 3 as the water-cooled drum 11' rotates. This slab 5 is conveyed to the next process by pinch rolls 6. The feature of the present invention is that narrow wave-shaped or gear-shaped metal rings 7 (hereinafter referred to as scraper rings) are fitted onto each circumferential end surface of the drum 1.1'. As shown in Fig. 2, by attaching the scraper ring 7 made of the same material as the drums 1 and 1' to the peripheral end of the drum 11', the surface of the drum 11' and the fixed weir are The solidified material generated at the boundary between the surfaces 2 and 2' is bitten by tooth-shaped or wave-shaped irregularities formed on the circumferential surface of the scraper ring 7, and the scraper ring 7 rotates together with the drum 1.1'. It moves downward in synchronization with the drum 1.1' and is cast into a slab 3 together with a solidified shell formed on the surface of the drum 1.1'. Therefore, the solidified product can be cast without being stuck to the fixed weirs 2, 2', resulting in good slab properties and less damage to the drum 1.1', allowing stable casting. After casting, the irregularities on both ends of the slab are cut off to create a product.
以下本発明の具体例をあげ本発明をより詳細に説明する
。Hereinafter, the present invention will be explained in more detail by giving specific examples.
８８４１相当の鋼を鋳造した場合の構成部材の寸法並び
に諸条件は以下に示すとうりである。The dimensions and various conditions of the structural members when steel equivalent to 8841 is cast are as shown below.
（１） 水冷ドラム
鋼製で内部水冷方式、ロール直径は２０００■φ、ロー
ル幅１２００ｍ、鋳片寸法は３ｍ厚Ｘ１２００ｗ幅であ
りこの時の鋳造速度は約５０ ｍ 、／ ｍである。(1) Water-cooled drum The drum is made of steel and has an internal water-cooling system.The roll diameter is 2000 mm, the roll width is 1200 m, and the slab dimensions are 3 m thick x 1200 w wide, and the casting speed is about 50 m/m.
（２）固定せき
固定せき耐火物はボロンナイトライド（ＢＮ）で板厚は
２５■厚でこの耐火物を電気ヒータにより１２５０Ｃま
で予熱した。(2) Fixed weir The fixed weir refractory was made of boron nitride (BN) and had a plate thickness of 25 cm. This refractory was preheated to 1250C with an electric heater.
（３） スクレーパリング
リングの材質は鋳造ドラムと同一の鋼製すングを用いた
。リングの厚みは１５１ｍ厚、幅は５０−で−・体物の
リングとした。なおリングは波形状とし波の凹凸は２対
の水冷ドラムで噛み合うようにし凹凸の山と谷の距離は
５日とした。また凹凸の数は２５０個配列上た。(3) The scraper ring was made of the same steel ring as the casting drum. The thickness of the ring was 151 m and the width was 50 mm, making it a body ring. The ring had a wavy shape, and the unevenness of the waves was made to mesh with two pairs of water-cooled drums, and the distance between the peaks and troughs of the unevenness was 5 days. In addition, the number of irregularities was 250.
（４）溶湯
ＳＳ ４１相当鋼の場合タンディツシュ内溶湯温度は約
１５６０℃である。(4) In the case of molten steel equivalent to SS 41, the molten metal temperature in the tundish is approximately 1560°C.
以上の諸条件で鋳造しブレークアウト等の操業トラブル
も無く安定した操業ができた。Casting was carried out under the above conditions, and stable operation was achieved without any operational problems such as breakouts.
なお、上記具体例のほかに、固定堰近傍のドラム表面に
凹凸のあるカラー（巾の狭い薄板）をドラムの回転と同
期して連続的に供給するようにしてもよい。In addition to the above specific example, a collar (a thin plate with a narrow width) having irregularities on the surface of the drum near the fixed weir may be continuously supplied in synchronization with the rotation of the drum.
本発明は、以上詳記したように、波形状あるいはギア状
の薄板リング（スクレーパリング）をドラム周端面に取
シ付けたものであるから、固定堰とドラム面の界面に生
成する凝固物がスクレーバリングの歯形又は波形の凹凸
に噛み込まれドラムと同期して鋳造されるため製品に凝
固物による欠陥が無くなる効果が生ずる。従って凝固物
が残存しないため、過凝固による圧延が無くなり、ドラ
ムの損傷も無くなる顕著な効果が生ずるものである。As described in detail above, the present invention has a wave-shaped or gear-shaped thin plate ring (scraper ring) attached to the peripheral end surface of the drum, so that the solidified matter generated at the interface between the fixed weir and the drum surface is Since it is bitten by the toothed or corrugated irregularities of the scraper ring and cast in synchronization with the drum, the product is free from defects caused by solidified matter. Therefore, since no coagulum remains, rolling caused by overcoagulation is eliminated, and there is a remarkable effect that damage to the drum is also eliminated.
第１図は本発明の実施例である薄板連続鋳造装置の縦断
面図であり、第２図は同装置の２本のドラムと２本の固
定堰との部分拡大詳細図である・・
復代理人 内 １） 明
復代理人 萩 原 亮 −
第１図
Ｚ ／′ ／Fig. 1 is a vertical cross-sectional view of a continuous thin plate casting apparatus according to an embodiment of the present invention, and Fig. 2 is a partially enlarged detailed view of two drums and two fixed weirs of the same apparatus. Agents 1) Meifuku agent Ryo Hagihara - Figure 1 Z /' /
Claims (1)
に並設した互いに回転方向を異にする２本のドラムとこ
のドラムの端面に押し当てた２個の固定堰によつて形成
される空間に溶鋼を注ぎ薄板を得る連続鋳造装置におい
て、ドラム端面にドラム材質と同一或は同等の材質の薄
板を着脱可能に取り付け、該薄板のドラム面を波形状或
はギヤ状にし２本のドラムで波形及びギヤが所望の間隙
をあけて噛み合うよう取り付けてなることを特徴とする
薄板連続鋳造装置。It is formed by two drums that rotate in different directions and are placed parallel to each other horizontally with a gap corresponding to the thickness of the metal strip to be manufactured, and two fixed weirs that are pressed against the end faces of these drums. In a continuous casting machine that obtains a thin plate by pouring molten steel into a space, a thin plate made of the same or equivalent material as the drum is removably attached to the end face of the drum, and the drum surface of the thin plate is shaped like a wave or gear to form two A thin plate continuous casting apparatus characterized by a drum in which corrugations and gears are attached so as to mesh with each other with a desired gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26002584A JPS61137652A (en) | 1984-12-11 | 1984-12-11 | Continuous casting device for thin sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26002584A JPS61137652A (en) | 1984-12-11 | 1984-12-11 | Continuous casting device for thin sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61137652A true JPS61137652A (en) | 1986-06-25 |
Family
ID=17342256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26002584A Pending JPS61137652A (en) | 1984-12-11 | 1984-12-11 | Continuous casting device for thin sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61137652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10883764B2 (en) | 2016-03-25 | 2021-01-05 | Dowa Thermotech Co., Ltd. | Door structure of heat treatment furnace |
-
1984
- 1984-12-11 JP JP26002584A patent/JPS61137652A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10883764B2 (en) | 2016-03-25 | 2021-01-05 | Dowa Thermotech Co., Ltd. | Door structure of heat treatment furnace |
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