JPH0442040Y2 - - Google Patents
Info
- Publication number
- JPH0442040Y2 JPH0442040Y2 JP3037287U JP3037287U JPH0442040Y2 JP H0442040 Y2 JPH0442040 Y2 JP H0442040Y2 JP 3037287 U JP3037287 U JP 3037287U JP 3037287 U JP3037287 U JP 3037287U JP H0442040 Y2 JPH0442040 Y2 JP H0442040Y2
- Authority
- JP
- Japan
- Prior art keywords
- weir
- drum
- bellows
- thin plate
- divided
- 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
Links
- 239000002184 metal Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 238000009749 continuous casting Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 239000011214 refractory ceramic Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案はツインドラム方式の薄板連続鋳造機の
うち、主としてドラム上に溶鋼を保持するための
サイド堰の下部堰に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a twin-drum type continuous thin plate casting machine, and mainly relates to a lower weir of a side weir for retaining molten steel on the drum.
２本の内部水冷式ドラムとドラム端面に押し当
てた２つの固定サイド堰で形成される空間に溶湯
を注湯し、薄板を連続鋳造するツインドラム方式
の連続鋳造機は従来から知られている。
Twin-drum continuous casting machines have long been known, which continuously cast thin plates by pouring molten metal into a space formed by two internal water-cooled drums and two fixed side weirs pressed against the drum ends. .
ところで、上記従来装置は、
(1) 固定サイド堰壁面上で溶湯が凝固し、この凝
固物がドラムの中立点近傍で圧延され幅拡がり
を生じ、固定サイド堰を押しひろげることによ
り、ドラム端面と固定サイド堰間にクリアラン
スが生じる。このクリアランスに溶湯が差しこ
み、安定した鋳造が不能となる。 By the way, in the above-mentioned conventional device, (1) the molten metal solidifies on the wall surface of the fixed side weir, this solidified material is rolled near the neutral point of the drum to cause width expansion, and by pushing the fixed side weir and spreading it, the end surface of the drum and Clearance is created between the fixed side weirs. Molten metal enters this clearance, making stable casting impossible.
(2) 固定サイド堰壁面で凝固物が固着して成長す
ると、鋳片端部の性状を著しく害するだけでな
く、ドラム面上で生成した凝固シエルを破断
し、ブレークアウトを引き起こす。(2) If solidified matter adheres and grows on the fixed side weir wall surface, it not only significantly impairs the properties of the end of the slab, but also ruptures the solidified shell formed on the drum surface, causing breakout.
などの欠点を有している。It has drawbacks such as:
このような欠点を排除するため、本考案者等
は、先に第３図に示すようなサイド堰を提案した
（特願昭59−1885号）。 In order to eliminate such drawbacks, the inventors of the present invention previously proposed a side weir as shown in FIG. 3 (Japanese Patent Application No. 1885-1985).
すなわち、固定サイド堰２を上下方向に２個以
上（第３図の例では３個）に分割し、上部堰８は
一定面圧でドラム１端面に押し当てて溶湯４の洩
れや差し込みを防止し、下部堰１１，１１はサイ
ド堰壁面の凝固物ならびにドラム面上の凝固シエ
ルの幅拡がりに対応できるように裏面より押力制
御が可能なスプリング又はシリンダ（第３図の例
ではシリンダ）１２によりドラム端面に押し当て
られ、上記の凝固物や凝固シエルで下部堰１１，
１１に一定押力以上が作用すれば反ドラム方向に
移動し、押力が一定圧力以下となれば直ちにドラ
ム端面に復帰し溶湯をシールするようになつてい
る。 That is, the fixed side weir 2 is divided vertically into two or more (three in the example shown in Fig. 3), and the upper weir 8 is pressed against the end surface of the drum 1 with a constant surface pressure to prevent leakage or insertion of the molten metal 4. The lower weirs 11, 11 are equipped with springs or cylinders (in the example shown in FIG. 3, cylinders) 12 whose pushing force can be controlled from the back surface in order to accommodate the width expansion of the coagulated material on the side weir walls and the coagulated shell on the drum surface. The solidified material and solidified shell are pressed against the end surface of the drum, and the lower weir 11,
If a certain pushing force or more is applied to the drum 11, it moves in the direction opposite to the drum, and if the pushing force becomes less than a certain pressure, it immediately returns to the end face of the drum and seals the molten metal.
上記の先提案に係るサイド堰では、下部堰１
１，１１をスプリングにより押力制御する場合
は、スプリングが上部堰８の熱を受けるので寿命
が短くなる懸念がある。また、シリンダ１２によ
り押力制御する場合、シリンダ１２はシールパツ
キンとシリンダロツド間の摩擦抵抗があるため押
し力の調整が困難であり、かつシリンダ取付構造
が複雑である。
In the side weir according to the above proposal, the lower weir 1
If the pushing force of the springs 1 and 11 is controlled by springs, there is a concern that the springs will receive heat from the upper weir 8, resulting in a shortened service life. Further, when the pushing force is controlled by the cylinder 12, it is difficult to adjust the pushing force because of the frictional resistance between the seal packing and the cylinder rod of the cylinder 12, and the cylinder mounting structure is complicated.
そこで本考案は、
(1) 高温でもクツシヨン性が保持でき、
(2) 押し力の微調整が可能であり、
(3) 構造がコンパクトな、
薄板連続鋳造機サイド堰の下部堰を提案するも
のである。 Therefore, the present invention proposes a lower weir for the side weir of a continuous thin plate casting machine that (1) maintains cushioning properties even at high temperatures, (2) allows fine adjustment of pushing force, and (3) has a compact structure. It is.
本考案は、上記した問題点を、下部堰の押力制
御手段としてベローズを使用することにより解決
するものである。
The present invention solves the above problems by using a bellows as a means for controlling the pushing force of the lower weir.
すなわち、本考案は、製造する金属帯板厚さに
相当する間隙を置いて並設した互いに回転方向を
異にする２本の水冷ドラムとこのドラムの端面に
押当てた２個のサイド堰によつて形成される空間
に溶湯を注ぎ薄板を得る連続鋳造機の前記サイド
堰において、前記サイド堰を上下方向に２個以上
に分割し、この分割されたサイド堰を最上部堰と
それ以外の下部堰とに区分し、この下部堰にドラ
ム端面押付け用ベローズを取り付けてなる薄板連
続鋳造機のサイド堰である。 In other words, the present invention consists of two water-cooled drums that rotate in different directions, placed side by side with a gap corresponding to the thickness of the metal strip to be manufactured, and two side weirs that are pressed against the end faces of these drums. In the side weir of a continuous casting machine that pours molten metal into the space thus formed and obtains a thin plate, the side weir is divided into two or more parts in the vertical direction, and the divided side weir is divided into the top weir and the other parts. This is a side dam for a thin plate continuous casting machine, which is divided into a lower dam and a bellows for pressing the drum end face attached to the bottom dam.
本考案において、ステンレス鋼板などの耐熱性
材料製のベローズを使用することによつて高温で
もクツシヨン性が保持できる。また、ベローズは
摺動部がないので押し力の微調整が可能であり、
しかもベローズは従来のシリンダに比し構造をコ
ンパクト化できる。
In the present invention, by using a bellows made of a heat-resistant material such as a stainless steel plate, cushioning properties can be maintained even at high temperatures. In addition, since the bellows has no sliding parts, it is possible to finely adjust the pushing force.
Moreover, the structure of the bellows can be made more compact than that of a conventional cylinder.
ところで、サイド堰はドラム端面接触部近傍が
この水冷式のドラムによつて冷却され溶鋼が凝着
し、これがドラムで圧延され幅拡がりを生じる。
本考案のベローズはこの幅拡がりに追従して下部
堰のみを変位させ、これにより上部堰の変位を防
止して湯漏れ防止の作用を果す。 By the way, the side weir is cooled by the water-cooled drum near the contact portion of the end surface of the drum, and molten steel adheres thereto, and this is rolled by the drum, causing the width to expand.
The bellows of the present invention follows this width expansion and displaces only the lower weir, thereby preventing displacement of the upper weir and preventing hot water from leaking.
第１図および第２図に基づいて本考案の実施例
を説明する。第１図は本考案を適用するツインド
ラム方式の薄板連続鋳造機の縦断面図であり、第
２図は第１図のＡ−Ａ線断面図であつて主にサイ
ド堰の構造を示したものである。
An embodiment of the present invention will be described based on FIGS. 1 and 2. Figure 1 is a longitudinal sectional view of a twin-drum continuous thin plate casting machine to which the present invention is applied, and Figure 2 is a sectional view taken along line A-A in Figure 1, mainly showing the structure of the side weir. It is something.
第１図に示す鋳造機は、薄板鋳片３を鋳造する
水冷鋳造ドラム１，１′、水冷鋳造ドラム１，
１′間の溶湯の洩れを防止するサイド堰２、溶鋼
等の溶湯４を定量供給するタンデイツシユ５など
を主要構成部材としている。 The casting machine shown in FIG.
The main components include a side weir 2 that prevents leakage of molten metal between 1' and a tundish 5 that supplies a fixed amount of molten metal 4 such as molten steel.
第１図において、水冷鋳造ドラム１，１′は水
平に設置されており、図示しない駆動装置により
回転（矢印方向）駆動される。この水冷鋳造ドラ
ム１，１′は例えば銅または銅合金あるいは銅材
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つている。また、水冷鋳造ド
ラム１，１′の両端部にはサイドをシールするた
めのサイド堰２が押し当てられており、２本の水
冷鋳造ドラム１，１′と２個のサイド堰２で形成
される空間に溶湯４が注湯される。注湯された溶
湯４は水冷鋳造ドラム１，１′の表面に接触して
冷却され、できた凝固シエルは一体化され鋳片３
となる。この鋳片３はピンチロール６により引抜
かれる。なお第１図中の７はガイドロールであ
る。 In FIG. 1, water-cooled casting drums 1 and 1' are installed horizontally and are driven to rotate (in the direction of the arrow) by a drive device (not shown). The water-cooled casting drums 1, 1' are made of, for example, copper, copper alloy, or copper material, and have a built-in water-cooling mechanism, and have a considerably large diameter to obtain a large contact area with the molten metal 4. There is. In addition, side weirs 2 are pressed against both ends of the water-cooled casting drums 1, 1' for sealing the sides, and are formed by two water-cooled casting drums 1, 1' and two side weirs 2. Molten metal 4 is poured into the space. The poured molten metal 4 is cooled by contacting the surfaces of the water-cooled casting drums 1 and 1', and the solidified shell formed is integrated into the slab 3.
becomes. This slab 3 is pulled out by pinch rolls 6. Note that 7 in FIG. 1 is a guide roll.
次に、第２図に基づいてサイド堰２および本考
案の一実施例である下部堰１１の構造を説明す
る。 Next, the structures of the side weir 2 and the lower weir 11, which is an embodiment of the present invention, will be explained based on FIG.
第２図はサイド堰２を２つに分割した例を示し
ており、上部堰８は耐火材又はセラミツクスから
なり、裏面よりヒータ９で加熱されている。下部
堰１１は耐火材又はセラミツクスからなり、裏面
に受座１３を介してドラム端面押付け用ベローズ
１４が取付けられている。このベローズ１４に
は、ホース１５、圧力計１６、減圧弁１７、配管
１８が付設され、ドラム端面押付け圧調節用の空
気や窒素等のガス１９が給気・排気される。 FIG. 2 shows an example in which the side weir 2 is divided into two parts, and the upper weir 8 is made of a refractory material or ceramics, and is heated from the back side by a heater 9. The lower weir 11 is made of a refractory material or ceramics, and a bellows 14 for pressing the end face of the drum is attached to the back surface of the bellows 11 via a seat 13. A hose 15, a pressure gauge 16, a pressure reducing valve 17, and a pipe 18 are attached to the bellows 14, and a gas 19 such as air or nitrogen for adjusting the drum end face pressing pressure is supplied and exhausted.
第２図において、上部堰８は一定面圧でドラム
端面に押し当てて溶湯の漏れを防止する。下部堰
１１はサイド堰壁面の凝固物ならびにドラム面上
の凝固シエル圧延による幅拡がりに対応できるよ
う押力が作用すれば直ちにベローズ１４内が排気
されドラム端面から離れ、また押力が作用しなく
なれば直ちにベローズ１４内に給気されドラム端
面に復帰して溶湯をシールする。 In FIG. 2, the upper weir 8 is pressed against the end face of the drum with a constant surface pressure to prevent leakage of the molten metal. When a pushing force is applied to the lower weir 11 to cope with the width expansion due to the coagulation on the side weir wall surface and the solidified shell rolling on the drum surface, the inside of the bellows 14 is immediately evacuated and separated from the drum end surface, and the pushing force no longer acts on it. Air is immediately supplied into the bellows 14 and returns to the end face of the drum to seal the molten metal.
本考案によれば、下部堰をドラム端面へ押付け
るための押力制御手段として、耐熱性材料製例え
ばステンレス鋼板製ベローズを使用することによ
つて、上部堰からの高熱に耐え、安定操業が可能
となる。また本考案は、押力が微調整できるベロ
ーズを使用するため、下部堰に適切な押し力を付
与でき、下部堰と鋳片端部の摺動部の摩耗が最小
となるよう調整することがでる。
According to the present invention, by using a bellows made of a heat-resistant material, such as a stainless steel plate, as a pushing force control means for pressing the lower weir against the end face of the drum, it can withstand high heat from the upper weir and achieve stable operation. It becomes possible. In addition, this invention uses bellows that can finely adjust the pushing force, so it is possible to apply an appropriate pushing force to the lower weir, and it can be adjusted to minimize wear on the sliding parts of the lower weir and the end of the slab. .
しかも、押力制御手段としてベローズは、シリ
ンダ等に比し構造が簡易であり、本考案によれば
下部堰の構造をコンパクト化できる。 Moreover, a bellows as a pushing force control means has a simpler structure than a cylinder or the like, and according to the present invention, the structure of the lower weir can be made more compact.
そして本考案では、サイド堰壁面に生成する凝
固物に起因するトラブル、すなわちドラムとサイ
ド堰との間への湯差しによる鋳造不能が解消で
き、安定した鋳造が可能となり、さらにサイド堰
壁面で凝固物が固着して成長することがなく、こ
のためドラム面上で生成した凝固シエルを破断す
ることがなく、鋳片端部の性状が良好となる。 In addition, this invention eliminates the trouble caused by the solidified material forming on the side weir wall surface, that is, the inability to cast due to pouring hot water between the drum and the side weir, and enables stable casting. Things do not stick and grow, so the solidified shell formed on the drum surface is not broken, and the properties of the end of the slab are improved.
第１図は本考案を適用する薄板連続鋳造機の断
面図、第２図は第１図のＡ−Ａ断面で本考案下部
堰の一例を示す図、第３図は従来の下部堰を示す
図で第１図のＡ−Ａ断面に相当する図である。
１，１′……ドラム、２……サイド堰、３……
鋳片、４……溶鋼、５……タンデイツシユ、６…
…ピンチロール、７……ガイドロール、８……上
部堰、９……ヒータ、１０……シリンダ、１１…
…下部堰、１２……シリンダ、１３……受座、１
４……ベローズ、１５……ホース、１６……圧力
計、１７……減圧弁、１８……配管、１９……ガ
ス。
Fig. 1 is a cross-sectional view of a continuous thin plate casting machine to which the present invention is applied, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, showing an example of the lower weir of the present invention, and Fig. 3 is a conventional lower weir. 2 is a diagram corresponding to the AA cross section in FIG. 1. FIG. 1,1'...Drum, 2...Side weir, 3...
Slab, 4... Molten steel, 5... Tandate, 6...
...Pinch roll, 7...Guide roll, 8...Upper weir, 9...Heater, 10...Cylinder, 11...
...Lower weir, 12...Cylinder, 13...Socket, 1
4... Bellows, 15... Hose, 16... Pressure gauge, 17... Pressure reducing valve, 18... Piping, 19... Gas.
Claims (1)
並設した互いに回転方向を異にする２本の水冷ド
ラムとこのドラムの端面に押当てた２個のサイド
堰によつて形成される空間に溶湯を注ぎ薄板を得
る連続鋳造機の前記サイド堰において、前記サイ
ド堰を上下方向に２個以上に分割し、この分割さ
れたサイド堰を最上部堰とそれ以外の下部堰とに
区分し、この下部堰にドラム端面押付け用ベロー
ズを取り付けてなる薄板連続鋳造機のサイド堰。 A space formed by two water-cooled drums that rotate in different directions, placed side by side with a gap corresponding to the thickness of the metal strip to be manufactured, and two side weirs pressed against the end faces of these drums. In the side weir of the continuous casting machine for pouring molten metal into a thin plate to obtain a thin plate, the side weir is divided into two or more in the vertical direction, and the divided side weir is divided into a top weir and the other lower weir. , the side weir of a thin plate continuous casting machine, which is made by attaching a bellows for pressing the end face of the drum to this lower weir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3037287U JPH0442040Y2 (en) | 1987-03-04 | 1987-03-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3037287U JPH0442040Y2 (en) | 1987-03-04 | 1987-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63138946U JPS63138946U (en) | 1988-09-13 |
| JPH0442040Y2 true JPH0442040Y2 (en) | 1992-10-02 |
Family
ID=30835115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3037287U Expired JPH0442040Y2 (en) | 1987-03-04 | 1987-03-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442040Y2 (en) |
-
1987
- 1987-03-04 JP JP3037287U patent/JPH0442040Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63138946U (en) | 1988-09-13 |
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