JPS5916658A - Belt type continuous casting device - Google Patents
Belt type continuous casting deviceInfo
- Publication number
- JPS5916658A JPS5916658A JP12445482A JP12445482A JPS5916658A JP S5916658 A JPS5916658 A JP S5916658A JP 12445482 A JP12445482 A JP 12445482A JP 12445482 A JP12445482 A JP 12445482A JP S5916658 A JPS5916658 A JP S5916658A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- belts
- continuous casting
- type continuous
- magnets
- 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
- B22D11/0677—Accessories therefor for guiding, supporting or tensioning the casting belts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は特に広幅スラブ材の製造に好適するベルト式連
続鋳造装置に係り、％にベルトの反り會防止して製品品
質の向上を図ったー・ルト式連続鋳造装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a belt-type continuous casting apparatus that is particularly suitable for manufacturing wide slab materials, and is designed to improve product quality by preventing belt warping to a large extent. Regarding.
従来、ベルト式連続鋳造法として、プロベルライ法、８
ＣＲ法、ハゼレット法等が知られている。Conventionally, as a belt type continuous casting method, the Probelly method, 8
CR method, Hazelet method, etc. are known.
前二者は鋳造断面が比較的小さい角形のビレット生産用
として１また後者は広幅スラブ材用として夫々普及して
いる。いずれの方法會実施する鋳造装置においても、溶
湯注出口に連続する所定長さの凝固路會互いに同期移動
する鋳型によって構成している。そして、凝固長さの設
定の容易化等から、一般に鋳型の少なくとも一方會無端
式のベルトにしている。このベルトは１〜３ｍ厚の鋼帯
が最も多く使用され、溶湯接触による溶損、変形防止の
ため冷却手段が付設される。例えばベルト背面への冷却
水供給、ベルトの溶湯接触面へのなたね油、ススその他
各種断熱離型剤の塗布等である。The former two are widely used for producing rectangular billets with a relatively small casting cross section, and the latter is widely used for wide slab materials. In the casting apparatus for carrying out either method, a solidification path of a predetermined length continuous with a molten metal spout is constituted by molds that move synchronously with each other. In order to facilitate the setting of the solidification length, at least one of the molds is generally an endless belt. Most often used for this belt is a steel strip with a thickness of 1 to 3 meters, and a cooling means is attached to prevent erosion and deformation due to contact with molten metal. Examples include supplying cooling water to the back surface of the belt, applying rapeseed oil, soot, and various other heat-insulating mold release agents to the surface of the belt that comes into contact with the molten metal.
このような冷却手段により、溶湯温度の低い鋼、アルミ
ニウム等の連続鋳造〒１溶湯温度が１５００〜１６００
Ｃと高い鉄鋼でも板幅の狭いビレット用連続鋳造に対し
ては、ベルトの溶損、変形等を有効に防止できる。By using such cooling means, continuous casting of steel, aluminum, etc. with low molten metal temperature is possible.
For continuous billet casting of narrow plate widths even with high carbon steel, belt melting, deformation, etc. can be effectively prevented.
ところが、スラブ材の如く６００〜２０００ ｍ ｍ等
の広幅断面材を鋳造するものでは、使用するベルトの冷
却効果が不均一となり、そのベルトの凝固路形成部分で
板幅方向の熱膨張変形が生じ易い。However, when casting wide cross-section materials such as slab materials of 600 to 2000 mm, the cooling effect of the belt used is uneven, and thermal expansion deformation in the sheet width direction occurs in the solidification path forming part of the belt. easy.
即ち、ベルト中央部が両側縁部よりも高温状態となる結
果、そのベルトの中央部が溶湯側に膨む形状の反りが生
じる。また、ベルトの凝固路域への入側ではガイドロー
ラの迂回直後の平旦化作用で内部歪による板幅方向への
反りが、前記熱変形と相乗して表われ、これによってベ
ルトに大きい反りが生じる（第１図及び第２図の破線参
照）。That is, as a result of the belt center becoming hotter than both side edge portions, the center of the belt bulges toward the molten metal and warps. In addition, on the entrance side of the belt to the coagulation path area, warpage in the width direction due to internal strain due to the flattening action immediately after the guide roller detours appears in combination with the thermal deformation, and this causes a large warp in the belt. occurs (see dashed lines in Figures 1 and 2).
しかして、このベルトの反りは凝固路出側で次第に消滅
する結果、鋳造製品には、凝固路の入側においてはベル
トの反シにより凝固殻の成長過程で凹形断面であったも
のが、出側で角形断面へと膨むことになり、その歪によ
って凝固殻にクラックが発生するなど、製品品質に悪影
響を及ぼすことがあった。また、ベルトの幅方向反シに
よって、ベルトが冷却バットから離間してその間隙が数
關に拡大し、さらに冷却効果が低減し、ベルトの温度上
昇に拍車が加わり、ひいてはベルトの溶損や溶湯流出事
故につながるおそれもあった。As a result, the warpage of the belt gradually disappears on the exit side of the solidification path, and as a result, the cast product has a concave cross section due to the warp of the belt during the growth process of the solidification shell on the entrance side of the solidification path. The product swelled into a square cross section on the exit side, and the distortion caused cracks in the solidified shell, which adversely affected product quality. In addition, due to the widthwise warping of the belt, the belt separates from the cooling vat, increasing the gap several times, which further reduces the cooling effect and adds to the rise in belt temperature, which can lead to belt melting and melting. There was also the risk of a spill.
本発明はこのような事情に鑑みてなされたもので、凝固
路における＠型構成用ベルトの平度度會維持でき、製品
品質の向上及びベルト保全が図れるベルト式連続−遺装
置全提供すること全目的とする。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a complete belt-type continuous apparatus that can maintain the flatness of the @-type forming belt in the coagulation path, improve product quality, and maintain the belt. For all purposes.
この目的ケ達成するだめの本発明の基本的な構成は、鋳
型を構成するベルトの、溶湯注出口に連続する凝固路へ
のガイド部に、そのベルトの幅方向に沿う千但化作用力
を付与する磁力式、或いは空気式のベルト吸引手段を設
けたものである。The basic structure of the present invention to achieve this objective is to apply a Chitankai force along the width direction of the belt to the guide portion of the belt constituting the mold to the solidification path that is continuous with the molten metal spout. A magnetic or pneumatic belt suction means is provided.
以下、本発明の一実施例を第１図〜第３図上参照して説
明する。Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 3.
１はタンプッシュで、溶湯（溶鋼）２が取鍋により収容
されている。３は注湯口としてのノズルであり、溶湯上
連続的に注出する。ノズル３に連続して、所定長さの凝
固路４が、互いに同期移動する無端ベルト５，６からな
る一対の鋳型によって構成されている。この各ベルト５
，６は炭素鋼、即ち磁性体であり、夫々ガイドローラ７
．８によってノズル３近傍全巻回して凝固路４に導入さ
れている。そして、弧状配置の冷却パッド９．１０に裏
側を支持されて凝固路４を形成する。なお、この各ベル
ト５．６は図示しないが夫々駆動モータに連結され、他
のガイドローラにより三角形状等の巻回配置とされる。Reference numeral 1 denotes a tamp pusher, in which molten metal (molten steel) 2 is accommodated in a ladle. 3 is a nozzle serving as a pouring port, which pours continuously onto the molten metal. Continuing from the nozzle 3, a solidification path 4 of a predetermined length is constituted by a pair of molds made up of endless belts 5 and 6 that move synchronously with each other. Each belt 5
, 6 are carbon steel, that is, magnetic material, and the guide rollers 7
．． 8, it is completely wound around the nozzle 3 and introduced into the coagulation path 4. The back side is supported by arc-shaped cooling pads 9 and 10 to form a solidification path 4. Each of the belts 5, 6 is connected to a drive motor (not shown), and wound in a triangular shape or the like by other guide rollers.
なお、１８．１９はベルト間に配置した補助鋳型構成体
で、溶湯短辺側全閉塞する。Note that 18 and 19 are auxiliary mold structures placed between the belts, which completely close the short side of the molten metal.
各冷却パッド９．１０は、水ジャケット１１゜１２の一
側面によって構成されており、この冷却パッド９．１０
に間隔的に穿設した多数の小孔１３からベルト５．６の
裏面に冷却水が噴射される。Each cooling pad 9.10 is constituted by one side of the water jacket 11°12, and this cooling pad 9.10
Cooling water is injected onto the back surface of the belt 5.6 from a large number of small holes 13 formed at intervals.
このものにおいて、冷却パッド９．１０にベルト５．６
の幅方向に沿う平旦化作用力を付与する吸引手段として
、磁石１４ｔ−配設している。この磁石１４は冷却パッ
ド９．ｌＯの表面に一部又は全体を埋設した永久磁石か
らなり、第２図及び第３図に示すように、冷却水噴出用
の小孔１３と交互に配置されている。In this one, cooling pad 9.10 and belt 5.6
A magnet 14t is disposed as an attraction means for applying a flattening force along the width direction. This magnet 14 is connected to the cooling pad 9. They are made up of permanent magnets that are partially or completely buried in the surface of the lO, and are arranged alternately with small holes 13 for spouting cooling water, as shown in FIGS. 2 and 3.
このような構成であると、吸引子Ｒｔ−設けない場合と
比較して以下のような鋳造時の利点會得ることができる
。With such a configuration, the following advantages during casting can be obtained compared to the case where the attractor Rt is not provided.
即ち、第１図及び第２図に破線で示すように、吸引手段
がない場合は、ベルト５．６の中央部に幅方向の反りが
、鋳型入側から出側に向かう一定範囲に亘って発生する
。この反り量δは、ベルト厚、ガイドローラ径Ｄ１ベル
ト有効幅ｗ１ベルトの強さく降伏点）Ｏ大小等を要因と
して定まる。That is, as shown by the broken line in FIGS. 1 and 2, if there is no suction means, the belt 5.6 will warp in the width direction at the center over a certain range from the mold entry side to the mold exit side. Occur. The amount of warpage δ is determined based on factors such as belt thickness, guide roller diameter D1, belt effective width w1, belt strength and yield point), etc.
現実の装置では、反り量δは数量に達することが認めら
れた。In an actual device, the amount of warpage δ was found to reach a certain amount.
なお、ベルト５．６の長手方向には、常時張力Ｔが付与
されるので、反りが成る程度抑制されるが、幅方向は無
張力であるため自然的抑制力は作用し得ない。また溶湯
の静圧によるベルト５．６の溶接パッド９．１０側への
押付は力は一般に小さいので、これも反り防止には格別
有効に作用しない。Note that since tension T is constantly applied to the belt 5.6 in the longitudinal direction, warpage is suppressed to the extent that warpage occurs, but since there is no tension in the width direction, no natural suppressing force can act. Further, since the force of pressing the belt 5.6 against the welding pad 9.10 side by the static pressure of the molten metal is generally small, this also does not work particularly effectively in preventing warping.
しかして、吸引手段を設けた前記実施例の構成であると
、冷却パッド９，１０の磁石１４によってベルト５．６
の幅方向全域に吸硫作用が働き、ベルト５．６は実線で
示す如く冷却パッド９゜１０の表面に沿う適正位置に拘
束され、凝固路４の断面が一様に保持される。従って、
溶湯の凝固途中における断面変化を抑制し、凝固殻の歪
等の発生しない良好品質の製品を得ることができる。With the structure of the above embodiment in which the suction means is provided, the magnets 14 of the cooling pads 9 and 10 cause the belts 5 and 5 to
The sulfur absorption action acts over the entire widthwise area of the belt 5.6, and the belt 5.6 is restrained at a proper position along the surfaces of the cooling pads 9 and 10, as shown by solid lines, and the cross section of the coagulation path 4 is maintained uniform. Therefore,
It is possible to suppress the cross-sectional change of the molten metal during solidification, and to obtain a product of good quality without distortion of the solidified shell.
また、ベルト５．６の平服化と共に、冷却パッド９．１
０への密着性の向上も図れるので、以下の如く、ベルト
溶損防止にも有効なものとなる。In addition, along with the belt 5.6 being changed to civilian clothes, the cooling pad 9.1
Since it is possible to improve the adhesion to zero, it is also effective in preventing belt melting and damage, as described below.
即ち、従来の如く反りが発生した場合は、ベルト５，６
と冷却パッド９．１０とのギャップが増大し、冷却水の
流速が低下する。これにより冷却能率が低下し、ベルト
温度が一層上昇し、さらに反りも増大するという悪循環
が生じた。−膜装置では、ギャップｉ ０．２〜０．７
ｍ、冷却水流速を５〜ｌ Ｑ ｍ／ ｓにして冷却水量
を定め、ベルト温度上昇は２５０〜３５０Ｃ程度に設定
している。この場合、ギャップが例えば５１ＩＩＩＩＶ
Ｃ増大すると、冷却水の流速は１／１０程度に低下し、
この結果、ベルト温度が５００〜７００Ｃに上昇するこ
とが確認されている。That is, if warpage occurs as in the conventional case, the belts 5 and 6
The gap between the cooling pad 9 and the cooling pad 9.10 increases, and the flow rate of cooling water decreases. This caused a vicious cycle in which the cooling efficiency decreased, the belt temperature further increased, and the warpage further increased. - for membrane devices, gap i 0.2-0.7
The amount of cooling water is determined by setting the cooling water flow rate to 5 to 1 Q m/s, and the belt temperature rise is set to about 250 to 350C. In this case, the gap is, for example, 51IIIV
When C increases, the flow rate of cooling water decreases to about 1/10,
As a result, it has been confirmed that the belt temperature increases to 500 to 700C.
これに対し、磁石１４により冷却パッド９゜１０側にベ
ルト５．６が吸引される前記実施例の構成によると、ギ
ャップの増大全防止できるため、冷却水の所要流速が維
持され、ベルト温度の上昇？阻止できるものである。On the other hand, according to the configuration of the above embodiment in which the belt 5.6 is attracted to the cooling pad 9° 10 side by the magnet 14, the increase in the gap can be completely prevented, so the required flow rate of the cooling water is maintained and the belt temperature is lowered. rise? It is something that can be prevented.
なお、前記実施例におけるベルト吸引力とギャップとの
関係を、コバルト磁石、フェライト磁石について実施し
た場合の作用を比較して第４図に示す。ベル）５．６は
１，２Ｗ厚とした。このように、夫々、磁石特性に応じ
、ギャップＧの減少効果が確認された。Incidentally, the relationship between the belt attraction force and the gap in the above embodiment is shown in FIG. 4, comparing the effects when implemented for a cobalt magnet and a ferrite magnet. Bell) 5.6 was 1.2W thick. In this way, the effect of reducing the gap G was confirmed depending on the magnet characteristics.
なお、前記実施例では、磁石１４と冷却水放出用の小孔
１３とを冷却パッド９．１０に交互配置としたが、第５
図及び第６図に示すように、小孔１３を冷却パッド９．
１０の中央部に集中的に配置し、その両側に桁状に配置
した磁石１４間隙七通して冷却水を両性側に流出させる
ようにしてもよい。このような構成によると、冷却水の
流出が磁石間の水路を介してベルト冷却と滑動とが共に
円滑に行なわれ、冷却効果の向上及びベルト位置決めの
確実性が図れる。In the above embodiment, the magnets 14 and the small holes 13 for discharging cooling water were arranged alternately in the cooling pad 9.10, but the fifth
As shown in FIG. 6, the small hole 13 is inserted into the cooling pad 9.
The magnets 10 may be centrally arranged at the center of the magnet 10, and the magnets 14 may be arranged in a digit shape on both sides of the magnet 10 through seven gaps so that the cooling water flows out to both sides. According to this configuration, the cooling water flows out through the water channels between the magnets, and both the belt cooling and sliding are performed smoothly, thereby improving the cooling effect and ensuring reliable belt positioning.
また、前記各実施例では吸引手段を永久磁石にしたが、
第７図及び第８図に示すように、電磁石又はリニアモー
タ１５にしてもよい。この場合は磁力の減衰防止の点で
有効なものとなる。なお、リニアモータとした場合は、
溶湯の進行がスムーズに行なえる利点がある。配置構成
は第５図及び第６図と同様としたが、他の構成にしても
よいこと勿論である。Furthermore, in each of the above embodiments, the attraction means is a permanent magnet.
As shown in FIGS. 7 and 8, an electromagnet or a linear motor 15 may be used. In this case, it is effective in preventing attenuation of magnetic force. In addition, when using a linear motor,
It has the advantage that the molten metal can progress smoothly. Although the arrangement is similar to that shown in FIGS. 5 and 6, it goes without saying that other arrangements may be used.
また、前記実施例では、吸引手段を磁力を利用し九構成
としたが、本発明は、そのようなものに限らず、空気吸
引式のものにしてもより０さらにまた、前記実施例では
、鋳臘の両方全ベルトにした場＆を示したが、本発明は
、例えば第９図及び第１０図に示すように、鋳型の一方
をドラム１６とし、他方會ベルト１７として実施する場
合にも実施可能なことはいうまでもない。Further, in the above embodiment, the suction means uses magnetic force and has nine configurations, but the present invention is not limited to such a structure, but may be of an air suction type. Although both of the casting molds are shown as full belts, the present invention can also be implemented when one of the molds is a drum 16 and the other is a belt 17, as shown in FIGS. 9 and 10, for example. Needless to say, it is possible.
以上のように、本発明によれば、鋳型構成用のベルトの
千肛度及びガイド部への密着性を高め、製品品質の向上
及びベルト保全性確保が図れるも ゛のである。As described above, according to the present invention, the perforation of the belt for forming the mold and the adhesion to the guide portion can be improved, and product quality can be improved and belt integrity can be ensured.
第１図〜第４図は本発明の一実施例を示すもので、第１
図は装置要部上水す中央部縦断面図、第２図は第１図の
五−■線断面図、第３図は第１図の■矢視図、第４図は
作用を示す特性線図、第５図及び第６図は本発明の他の
実施例上水す夫々第１図及び第２図に対応する図、第７
図及び第８図はさらに他の実施例を示す第１図及び第２
図に対応する図、第９図及び第１０図はさらに異なる実
施例を示す第１図及び第２図に対応する図である。
２・・・溶湯、３・・・注湯口、４・・・凝固路、５．
６１１７・・・ベル）、９．１０・・・ガイド（冷却パ
ッド）、１３・・・小孔、１４．１５・・・吸引手段（
磁石、リニアモータ）。
代理人 弁理士 高橋明夷
弔３図Figures 1 to 4 show one embodiment of the present invention.
The figure is a vertical cross-sectional view of the central part of the main part of the water supply system, Figure 2 is a cross-sectional view taken along the line 5--■ in Figure 1, Figure 3 is a view taken in the direction of the ■ arrow in Figure 1, and Figure 4 is a characteristic showing the action. The diagrams, FIGS. 5 and 6, are diagrams corresponding to FIGS. 1 and 2, respectively, showing other embodiments of the present invention.
Figures 1 and 8 show still other embodiments.
9 and 10 are diagrams corresponding to FIGS. 1 and 2 showing further different embodiments. 2... Molten metal, 3... Pouring port, 4... Solidification path, 5.
6117... Bell), 9.10... Guide (cooling pad), 13... Small hole, 14.15... Suction means (
magnets, linear motors). Agent Patent Attorney Takahashi Meiji Condolence 3
Claims (1)
期移動する鋳型によって構成し、前記鋳型の少なくとも
一方を無端式のベルトとしているベルト式連続鋳造装置
において、前記ベルトの凝固路へのガイド部にそのベル
トの幅方向に沿う平坦化作用力を付与する吸引子Ｒｔ−
設けたこと全特徴とするベルト式連続鋳造装置。 ２、 ベルトが磁性材製であり、吸引手段が磁石又はリ
ニアモータであることを特徴とする特許請求の範囲第１
項記載のベルト式連続鋳造装置。 ３、吸引手段が空気吸入式のものであることを特徴とす
る特許請求の範囲第１項記載のベルト式連続鋳造装置。 ４、ベルトと吸引手段との間に冷却兼ベルト滑動用の水
路を形成したことｔ−％徴とする特許請求の範囲第１項
記載のベルト式連続鋳造装置。[Scope of Claims] 1. A belt-type continuous casting device in which a solidification path of a predetermined length continuous with a molten metal spout is constituted by molds that move in synchronization with each other, and at least one of the molds is an endless belt. A suction element Rt- that applies a flattening force along the width direction of the belt to the guide portion of the belt to the coagulation path.
Belt type continuous casting equipment with all the features. 2. Claim 1, characterized in that the belt is made of a magnetic material and the attraction means is a magnet or a linear motor.
The belt-type continuous casting device described in Section 1. 3. The belt type continuous casting apparatus according to claim 1, wherein the suction means is of an air suction type. 4. The belt type continuous casting apparatus according to claim 1, characterized in that a channel for cooling and belt sliding is formed between the belt and the suction means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12445482A JPS5916658A (en) | 1982-07-19 | 1982-07-19 | Belt type continuous casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12445482A JPS5916658A (en) | 1982-07-19 | 1982-07-19 | Belt type continuous casting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5916658A true JPS5916658A (en) | 1984-01-27 |
Family
ID=14885916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12445482A Pending JPS5916658A (en) | 1982-07-19 | 1982-07-19 | Belt type continuous casting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5916658A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219756A (en) * | 1983-05-27 | 1984-12-11 | Konishiroku Photo Ind Co Ltd | Electrostatic charge image developing red toner |
| JPS60166145A (en) * | 1984-02-06 | 1985-08-29 | Mitsubishi Heavy Ind Ltd | Belt cooler in belt type continuous casting machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53108829A (en) * | 1977-03-04 | 1978-09-22 | Larex Ag | Method of cooling and guiding circulation type casting belt in metal strip continuous casting facility and cooling and guide apparatus |
-
1982
- 1982-07-19 JP JP12445482A patent/JPS5916658A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53108829A (en) * | 1977-03-04 | 1978-09-22 | Larex Ag | Method of cooling and guiding circulation type casting belt in metal strip continuous casting facility and cooling and guide apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219756A (en) * | 1983-05-27 | 1984-12-11 | Konishiroku Photo Ind Co Ltd | Electrostatic charge image developing red toner |
| JPH0337182B2 (en) * | 1983-05-27 | 1991-06-04 | Konishiroku Photo Ind | |
| JPS60166145A (en) * | 1984-02-06 | 1985-08-29 | Mitsubishi Heavy Ind Ltd | Belt cooler in belt type continuous casting machine |
| JPH0337456B2 (en) * | 1984-02-06 | 1991-06-05 | Mitsubishi Jukogyo Kk |
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