JPS6336869B2 - - Google Patents
Info
- Publication number
- JPS6336869B2 JPS6336869B2 JP15682082A JP15682082A JPS6336869B2 JP S6336869 B2 JPS6336869 B2 JP S6336869B2 JP 15682082 A JP15682082 A JP 15682082A JP 15682082 A JP15682082 A JP 15682082A JP S6336869 B2 JPS6336869 B2 JP S6336869B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating drum
- drum
- flanged
- gap
- thin plate
- 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 13
- 238000009749 continuous casting Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000005499 meniscus Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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
- B22D11/0622—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)
Description
【発明の詳細な説明】
本発明は、ドラム式薄板連続鋳造装置の改良に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a drum-type continuous thin plate casting apparatus.
従来のドラム式薄板連続鋳造装置は、通常、第
１図及び第２図に示すように構成されている。そ
れらの図で１ａは水冷式円筒形回転ドラムで、同
回転ドラム１ａは、図示省略の駆動源で、矢印方
向に駆動回転されるようになつている。１ｂはフ
ランジ２を両端に有するフランジ付水冷式回転ド
ラムで、同フランジ付回転ドラム１ｂは、その回
転軸が上記円筒形回転ドラム１ａのｃ回転軸と平
行に、かつ、該回転ドラム１ａの外周面との間
に、鋳造用鋳型を形成する間隙Ｓが形成されるよ
うに設置されており、図示の省略の駆動源により
該円筒形回転ドラム１ａと同一周速度で矢印方向
へ駆動回転されるようになつている。２ａは円筒
形回転ドラム１ａの外端面とフランジ付回転ドラ
ム１ｂのフランジ２の内側面との間のスキ間（通
常約0.2mm）、３はタンデイツシユ、４はそのノズ
ルで、同ノズル４を介してタンデイツシユ３内の
溶湯が、円筒形回転ドラム１ａとフランジ付回転
ドラム１ｂとの間の間隙（鋳型）Ｓ内に連続的に
注湯されるようになつており、該鋳型Ｓ内に注湯
された溶湯は、水冷式円筒形回転ドラム１ａ及び
水冷式フランジ式回転ドラム１ｂによつて冷却さ
れて凝固殻を形成して鋳型Ｓの幅ｄの鋳片５とな
り、引抜きピンチロール６によつて引抜かれるよ
うになつている。なお、第１図の符号７は、メニ
スカス（鋳型部内の溶湯の表面）を示す。 A conventional drum-type continuous thin plate casting apparatus is usually constructed as shown in FIGS. 1 and 2. In these figures, 1a is a water-cooled cylindrical rotating drum, and the rotating drum 1a is driven and rotated in the direction of the arrow by a drive source (not shown). 1b is a flanged water-cooled rotary drum having flanges 2 at both ends, and the flanged rotary drum 1b has its rotation axis parallel to the c rotation axis of the cylindrical rotary drum 1a, and extends along the outer periphery of the rotary drum 1a. The cylindrical rotary drum 1a is installed so that a gap S forming a casting mold is formed between the cylindrical rotary drum 1a and the cylindrical rotary drum 1a, and is driven and rotated in the direction of the arrow by an unillustrated driving source. It's becoming like that. 2a is the gap (usually about 0.2 mm) between the outer end surface of the cylindrical rotating drum 1a and the inner surface of the flange 2 of the flanged rotating drum 1b; 3 is the tundish; and 4 is its nozzle; The molten metal in the tundish 3 is continuously poured into the gap (mold) S between the cylindrical rotating drum 1a and the flanged rotating drum 1b, and the molten metal is poured into the mold S. The molten metal is cooled by a water-cooled cylindrical rotating drum 1a and a water-cooled flange-type rotating drum 1b to form a solidified shell to become a slab 5 having a width d in a mold S, and is then pulled out by a drawing pinch roll 6. It's starting to get pulled out. Note that the reference numeral 7 in FIG. 1 indicates a meniscus (the surface of the molten metal in the mold section).
上記従来のドラム式薄板連続鋳造装置では、フ
ランジ付回転ドラム１ａのフランジ２に接触する
溶湯は、該フランジ２の冷却効果により、メニス
カス７まで凝固し、Ｙ形の凝固殻８が形成され
る。（第４図参照）すなわち、端部はメニスカス
７部で幅ｈの凝固殻となり、両ドラム１ａ，１ｂ
の回転につれて幅ｄの大きさまで押しつぶされる
ので、鋳片５の端部にしわが生じる。装置の生産
性を上げるためには、溶湯（鋳片）との接触長さ
ｌ（第３図）を長くする必要があるが、そのため
には、ｌ＝γ、θ（ただしγはフランジ付回転ド
ラムの半径）の関係から、γを大きくするか、θ
を大きくする必要があるが、しかしγを大きくと
れば、ノズル４からの注湯が難かしくなり、ま
た、θを大きくすれば、ｈとｄの差が大きくな
り、鋳片５の端部にしわが生じるという欠点が助
長されるという不具合がある。また、上記従来装
置は円筒形回転ドラム１ａとフランジ付回転ドラ
ム１ｂとの熱変形の差により、スキ間２ａが大き
くなり、該部に溶湯が差し込んで、ドラムが回転
不能になるなどの操業トラブルを起しやすいとい
う欠点もあつた。 In the conventional drum-type thin plate continuous casting apparatus described above, the molten metal that comes into contact with the flange 2 of the flanged rotating drum 1a solidifies to the meniscus 7 due to the cooling effect of the flange 2, and a Y-shaped solidified shell 8 is formed. (See Figure 4) In other words, the end part becomes a solidified shell of width h with 7 meniscus parts, and both drums 1a, 1b
As the slab 5 rotates, it is crushed to the size of the width d, so that wrinkles occur at the ends of the slab 5. In order to increase the productivity of the equipment, it is necessary to increase the contact length l (Fig. 3) with the molten metal (slab). (drum radius), either increase γ or increase θ
It is necessary to increase γ, but if γ is increased, pouring from the nozzle 4 becomes difficult, and if θ is increased, the difference between h and d becomes large, and the end of the slab 5 becomes difficult to pour. There is a problem in that the defect of self-arising is encouraged. In addition, in the above-mentioned conventional device, due to the difference in thermal deformation between the cylindrical rotating drum 1a and the flanged rotating drum 1b, the gap 2a becomes large, and molten metal is inserted into this area, causing operational problems such as the drum becoming unable to rotate. It also had the disadvantage of being prone to
本発明は、上記従来装置の不具合点や欠点を解
消し、生産性が向上し、かつ安定操業を確保でき
るドラム式連続製造装置を提供することを目的と
して提案されたもので、水冷式円筒形回転ドラム
と、水冷式フランジ付回転ドラムとの間の間隙
（鋳型部）に、溶湯を連続的に注湯して、薄板を
連続鋳造するドラム式薄板連続鋳造装置において
上記円筒形回転ドラムの両端部外周面と、フラン
ジ付回転ドラムの両側のフランジ内側面とに摺動
可能に、一対のサイドダムを設置し、それらサイ
ドダムのフランジ付回転ドラムに対向する面を、
該フランジ付回転ドラムの半径と、両回転ドラム
の間の間隙の幅との和よりも大きな半径の円弧状
の曲面で形成したことを特徴とするドラム式薄板
連続鋳造装置に係るものである。 The present invention has been proposed for the purpose of providing a drum-type continuous manufacturing device that eliminates the problems and shortcomings of the conventional devices, improves productivity, and ensures stable operation. In a drum-type thin plate continuous casting machine that continuously casts thin plates by continuously pouring molten metal into the gap (mold part) between the rotating drum and the water-cooled flanged rotating drum, both ends of the cylindrical rotating drum are used. A pair of side dams are slidably installed on the outer circumferential surface of the drum and the inner surfaces of the flanges on both sides of the flanged rotating drum, and the surfaces of the side dams facing the flanged rotating drum are
The present invention relates to a drum-type thin plate continuous casting apparatus characterized in that the flanged rotary drum is formed with an arcuate curved surface having a radius larger than the sum of the radius of the flanged rotary drum and the width of the gap between both rotary drums.
以下、第５図乃至第７図に示す実施例により、
本発明につき具体的に説明する。 Hereinafter, according to the embodiments shown in FIGS. 5 to 7,
The present invention will be specifically explained.
それらの図で、１ａは円筒形回転ドラム、１ｂ
はフランジ２を有するフランジ付回転ドラムで、
それら部材の構成、作用及び相互の関係構造は、
上記従来装置のものとほぼ同様である。（均等部
分には同一符号を付してある。）
９，９は、円筒形回転ドラム１ａの両端部外周
面及びフランジ付回転ドラム１ｂの両端フランジ
２の内側面に、摺動可能に配設された一対のサイ
ドダムで、それらサイドダム９，９は、固定部１
０に取付けられた支持部材９ａにより、円筒形回
転ドラム１ａの両端部外周面及びフランジ付回転
ドラム１ｂの両側端のフランジ２の内側面に押付
けられている。そして、それらサイドダム９のフ
ランジ付回転ドラム１ｂの外周面に対向する面
は、半径Ｒの円弧状曲面に形成されており、該半
径Ｒの大きさは、フランジ付回転ドラム１ｂの半
径γと、両ドラム１ａ，１ｂ間の間隙（鋳型部）
の幅ｄとの和よりも、僅かに大きく設定される。
すなわちＲ＞γ＋ｄとする。また、サイドダムの
材質は、たとえばAl溶湯の場合は鋼または耐火
材、鋼溶湯に対しては耐火材が用いられる。 In those figures, 1a is a cylindrical rotating drum, 1b
is a flanged rotating drum having a flange 2,
The structure, operation, and mutual relationship of these members are as follows:
This is almost the same as the conventional device described above. (Equivalent parts are given the same reference numerals.) 9, 9 are slidably disposed on the outer peripheral surface of both ends of the cylindrical rotating drum 1a and on the inner surface of both end flanges 2 of the flanged rotating drum 1b. A pair of side dams 9, 9 are attached to the fixed part 1.
The support member 9a attached to the cylindrical rotating drum 1a is pressed against the outer circumferential surface of both ends of the cylindrical rotating drum 1a and the inner surface of the flanges 2 at both ends of the flanged rotating drum 1b. The surfaces of the side dams 9 facing the outer circumferential surface of the flanged rotating drum 1b are formed into an arcuate curved surface with a radius R, and the radius R is equal to the radius γ of the flanged rotating drum 1b. Gap between both drums 1a and 1b (mold part)
is set slightly larger than the sum of the width d and the width d.
That is, R>γ+d. Further, the material of the side dam is, for example, steel or a refractory material in the case of molten Al, and a refractory material is used in the case of molten steel.
第８図ａ，ｂ，ｃに、サイドダム９の３つの具
体例を示すが、第８図ａに示すものは、通常の
例、第８図ｂを示すものは、強度的な配慮から、
端部を厚く形成したもの、第８図ｃに示すもの
は、電源Ｅに接続されたヒータ１２を埋め込んだ
例で、本例は操業のスタート時に、溶湯の凝固温
度近くまで予熱するようにしたものである。 Three specific examples of the side dam 9 are shown in FIGS. 8a, b, and c. The one shown in FIG. 8a is a normal example, and the one shown in FIG.
The one with thicker ends, shown in Figure 8c, is an example in which a heater 12 connected to a power source E is embedded, and in this example, the molten metal is preheated to near the solidification temperature at the start of operation. It is something.
本発明装置は、上記構成のサイドダム９を上記
のように配設したことを特徴とするものである。 The device of the present invention is characterized in that the side dam 9 having the above configuration is arranged as described above.
本発明装置の一実施例は、上記のように構成さ
れており、水冷式円筒形回転ドラム１ａ、水冷式
フランジ付回転ドラム１ｂ、フランジ２及びサイ
ドダム９で形成される鋳型部に注湯された溶湯
は、水冷式円筒形回転ドラム１ａ、水冷式フラン
ジ式回転ドラム１ｂ、フランジ２との接触面から
凝固殻１１（第３図）を生成するが、サイドダム
９との接触面からは、ほとんどあるいは全く凝固
は進まない。そしてフランジ２との接触面の凝固
殻は、第７図に示すように、サイドダム９に沿つ
てフランジ付回転ドラム１ｂの回転とともに変形
することなく発達しながら引き抜かれ、円筒形回
転ドラム１ａと接し、幅h′から幅ｄまで僅かにつ
ぶされて鋳片５となる。この場合、サイドダム９
は円筒形回転ドラム１ａ及びフランジ２と接触す
るのみである。すなわち、サイドダム９は２つの
直交面に接触するだけなので、回転ドラム１ａ，
１ｂとの間に熱膨脹差とか、ドラム間隙ｄの変動
が生じても、常にそれら両面への接触を維持でき
るため、フランジ２と円筒形回転ドラム１ａの外
端面との間のスキ間が大きくなることがない。そ
のため溶湯の差し込みによる操業トラブルが発生
するおそれはない。また、サイドダム９のフラン
ジ付回転ドラム１ｂの外周面に対向する曲面の半
径Ｒが、フランジ付回転ドラム１ｂの半径γと、
両ドラム間の間隙の幅ｄとの和よりも大きく設定
されているため、凝固殻とフランジ付回転ドラム
１ｂとの接触長さl′を長くとれるので、生産性が
向上する。なおまた、鋳片５の端部のつぶれは、
幅h′から幅ｄまでの催かであり、従来に比し鋳片
の品質が向上する。また、メニスカス７が広くな
り、スプラツシユの発生しない注湯を行なうこと
ができ、従つて鋳片表面に品質欠陥を生じること
がない。 One embodiment of the apparatus of the present invention is constructed as described above, and the mold part formed by the water-cooled cylindrical rotating drum 1a, the water-cooled flanged rotating drum 1b, the flange 2, and the side dam 9 is filled with molten metal. The molten metal generates a solidified shell 11 (Fig. 3) from the contact surface with the water-cooled cylindrical rotating drum 1a, the water-cooled flange-type rotating drum 1b, and the flange 2, but from the contact surface with the side dam 9, most or Coagulation does not proceed at all. As shown in FIG. 7, the solidified shell on the contact surface with the flange 2 is pulled out along the side dam 9 while developing without being deformed as the flanged rotating drum 1b rotates, and comes into contact with the cylindrical rotating drum 1a. , it is slightly crushed from the width h' to the width d to become the slab 5. In this case, side dam 9
is only in contact with the cylindrical rotating drum 1a and the flange 2. That is, since the side dam 9 only contacts two orthogonal surfaces, the rotating drums 1a,
Even if there is a difference in thermal expansion between the flange 2 and the drum 1b or a fluctuation in the drum gap d, contact with both surfaces can be maintained at all times, so the gap between the flange 2 and the outer end surface of the cylindrical rotating drum 1a becomes larger. Never. Therefore, there is no risk of operational troubles occurring due to insertion of molten metal. Further, the radius R of the curved surface of the side dam 9 facing the outer peripheral surface of the flanged rotating drum 1b is the radius γ of the flanged rotating drum 1b,
Since it is set to be larger than the sum of the width d of the gap between both drums, the contact length l' between the solidified shell and the flanged rotary drum 1b can be increased, thereby improving productivity. Furthermore, the collapse of the end of the slab 5 is caused by
The width is from h' to d, and the quality of the slab is improved compared to the conventional method. In addition, the meniscus 7 is widened, making it possible to perform pouring without splashing, and therefore, no quality defects occur on the surface of the slab.
本発明装置は、上記のような構成、作用を具有
するものであるから、本発明によれば、上記従来
装置の不具合点が欠点を解消し、生産性が向上
し、かつ安定操業の可能なドラム式薄板連続鋳造
装置を実現できるという実用的効果を挙げること
ができる。 Since the apparatus of the present invention has the above-described configuration and operation, the present invention can eliminate the drawbacks of the conventional apparatus, improve productivity, and enable stable operation. This has the practical effect of realizing a drum-type continuous thin plate casting apparatus.
第１図乃至第３図は、従来装置の略示的説明図
で、第１図は側面図、第２図は第１図の−線
断面図、第３図は第２図の−線断面図、第４
図はその凝固殻生成態様説明図、第５図乃至第７
図は、本発明の一実施例の概略説明図で、第５図
は側面図、第６図は第５図の−線断面図、第
７図は第６図の−線断面図、第８図ａ，ｂ，
ｃはサイドダムの各種具体例の斜視図である。
１ａ：円筒形回転ドラム、１ｂ：フランジ付回
転ドラム、２：フランジ、７：メニスカス、９：
サイドダム、γ：フランジ付回転ドラムの半径、
ｄ：ドラム間の間隙（鋳型）の幅、Ｒ：サイドダ
ムのフランジ付回転ドラムの外周面に対向する曲
面の半径。
1 to 3 are schematic explanatory diagrams of a conventional device, in which FIG. 1 is a side view, FIG. 2 is a sectional view taken along the - line in FIG. 1, and FIG. 3 is a sectional view taken along the - line in FIG. Figure, 4th
The figures are explanatory diagrams of the solidified shell formation mode, Figures 5 to 7.
The figures are schematic explanatory diagrams of one embodiment of the present invention, in which FIG. 5 is a side view, FIG. 6 is a cross-sectional view taken along the line -- in FIG. 5, FIG. Figures a, b,
c is a perspective view of various specific examples of side dams. 1a: Cylindrical rotating drum, 1b: Rotating drum with flange, 2: Flange, 7: Meniscus, 9:
Side dam, γ: radius of rotating drum with flange,
d: Width of the gap (mold) between the drums; R: Radius of the curved surface of the side dam facing the outer peripheral surface of the flanged rotating drum.
Claims (1)
付回転ドラムとの間の間隙（鋳型部）に、溶湯を
連続的に注湯して、薄板を連続鋳造するドラム式
薄板連続鋳造装置において、上記円筒形回転ドラ
ムの両端部外周面と、フランジ付回転ドラムの両
側のフランジ内側面とに摺動可能に、一対のサイ
ドダムを設置し、それらサイドダムのフランジ付
回転ドラムに対向する面を、該フランジ付回転ド
ラムの半径と、両回転ドラムの間の間隙の幅との
和よりも大きな半径の円弧状曲面で形成したこと
を特徴とするドラム式薄板連続鋳造装置。1. In a drum-type thin plate continuous casting apparatus that continuously casts a thin plate by continuously pouring molten metal into the gap (mold part) between a water-cooled cylindrical rotating drum and a water-cooled flanged rotating drum, the above-mentioned A pair of side dams are slidably installed on the outer peripheral surface of both ends of the cylindrical rotating drum and on the inner surfaces of the flanges on both sides of the flanged rotating drum, and the surfaces of the side dams facing the flanged rotating drum are attached to the flanged rotating drum. 1. A drum-type thin plate continuous casting device, characterized in that it is formed with an arcuate curved surface having a radius larger than the sum of the radius of the rotary drum and the width of the gap between the two rotary drums.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15682082A JPS5947048A (en) | 1982-09-10 | 1982-09-10 | Drum type continuous casting device for thin sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15682082A JPS5947048A (en) | 1982-09-10 | 1982-09-10 | Drum type continuous casting device for thin sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5947048A JPS5947048A (en) | 1984-03-16 |
| JPS6336869B2 true JPS6336869B2 (en) | 1988-07-21 |
Family
ID=15636053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15682082A Granted JPS5947048A (en) | 1982-09-10 | 1982-09-10 | Drum type continuous casting device for thin sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5947048A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0410260U (en) * | 1990-04-27 | 1992-01-29 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5480787B2 (en) * | 2010-11-30 | 2014-04-23 | 三菱日立製鉄機械株式会社 | Twin roll type continuous casting machine and twin roll type continuous casting method |
-
1982
- 1982-09-10 JP JP15682082A patent/JPS5947048A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0410260U (en) * | 1990-04-27 | 1992-01-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5947048A (en) | 1984-03-16 |
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