JPH0362504B2 - - Google Patents
Info
- Publication number
- JPH0362504B2 JPH0362504B2 JP6041582A JP6041582A JPH0362504B2 JP H0362504 B2 JPH0362504 B2 JP H0362504B2 JP 6041582 A JP6041582 A JP 6041582A JP 6041582 A JP6041582 A JP 6041582A JP H0362504 B2 JPH0362504 B2 JP H0362504B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- molten metal
- drum
- cooled
- side dam
- 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 35
- 239000006060 molten glass Substances 0.000 claims description 11
- 238000009749 continuous casting Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000011812 mixed powder Substances 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 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、安定した操業が行い得る金属薄板の
連続鋳造装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous casting apparatus for thin metal sheets that can perform stable operations.
従来、金属薄板を連続鋳造するには、第１図お
よびそのＡ−Ａ断面の第２図に示すような装置が
使用されていた。 BACKGROUND ART Conventionally, an apparatus as shown in FIG. 1 and its AA cross section in FIG. 2 has been used for continuous casting of thin metal sheets.
第１，２図の装置は、タンデイツシユ１、一対
の水冷ドラム３，３′、サイドダム４（第１，２
図のものはドラム３，３′端面に押しつける方式
のものを示している）、ガイドロール５およびピ
ンチロール６より構成されており、タンデイツシ
ユ１内の溶湯は、注湯ノズル２を経由して一対の
サイドダム４と一対の水冷ドラム３，３′で構成
される溶湯プール７に注湯され、相対向して回転
している水冷ドラム３，３′上で、それぞれ凝固
シエル８が形成され、一対の水冷ドラム間隙部９
で圧着・圧延して薄板１０に鋳造され、該薄板１
０がガイドロール５を経て、一対の水冷ドラム
３，３′と同調して駆動されるピンチロール６に
より、矢印１１方向に所定速度で引抜かれるもの
である。 The apparatus shown in Figs. 1 and 2 includes a tundish 1, a pair of water-cooled drums 3, 3', and a side dam 4 (first and second
The tundish is composed of a guide roll 5 and a pinch roll 6. The molten metal is poured into a pool 7 consisting of a side dam 4 and a pair of water-cooled drums 3, 3', and solidified shells 8 are formed on the water-cooled drums 3, 3' which are rotating opposite each other. water-cooled drum gap 9
The thin plate 10 is cast by crimping and rolling at
0 passes through a guide roll 5 and is pulled out at a predetermined speed in the direction of arrow 11 by a pinch roll 6 driven in synchronization with a pair of water-cooled drums 3 and 3'.
この装置で、最も問題となるのは、溶湯の水冷
ドラム軸方向への漏れを防ぐために溶湯プール７
の両側に配設されるサイドダム４による溶湯シー
ルと、サイドダム４とドラム３，３′接触部（溶
湯プール７コーナー部）に両者にまたがつて形成
される凝固シエル８′である。 The biggest problem with this equipment is that the molten metal pool 7
A solidification shell 8' is formed at the contact area between the side dam 4 and the drums 3 and 3' (corner part of the molten metal pool 7), spanning both sides.
溶湯シールについては、耐火・耐熱性材料で作
られたサイドダム４をドラム３，３′側端に沿わ
す手法や、ドラム３，３′端面に押しつける手法
（第２図参照）等が提案されているが、高温部の
シールであるため、熱膨張や熱歪が生じ、従つて
湯面近傍ではドラム３，３′側端や端面とサイド
ダム４間に溶湯が差し込まないように常時一定の
隙間（例えば、0.25mm）以下に保持することは非
常に困難であり、万一溶湯が差し込むと差し込ん
だ溶湯は極めて少量で熱容量が小さいために、回
転している水冷ドラム３，３′と固定しているサ
イドダム４間で直ちに凝固し、摩擦抵抗が非常に
大きくなり、ドラム３，３′の駆動不能又はサイ
ドダム４の破損を招き、鋳込不能となる。 For sealing the molten metal, methods have been proposed, such as placing a side dam 4 made of fire-resistant and heat-resistant material along the side edges of the drums 3 and 3', and pressing the side dam 4 against the end surfaces of the drums 3 and 3' (see Figure 2). However, since it is a seal in a high temperature area, thermal expansion and thermal distortion occur, so a certain gap ( For example, it is very difficult to maintain the temperature below 0.25 mm, and if molten metal were to be inserted, the molten metal would be extremely small and have a small heat capacity, so it should be fixed to the rotating water-cooled drums 3 and 3'. Immediately solidification occurs between the side dams 4, causing extremely large frictional resistance, resulting in the inability to drive the drums 3, 3' or damage to the side dams 4, making it impossible to cast.
また、固定されているサイドダム４と回転して
いる水冷ロール３，３′間に凝固シエル８′が形成
されると、そのシエル８′に剪断力が働き（すな
わち、第２図に示すように、サイドダム４上で形
成される凝固シエル８と、水冷ドラム３，３′上
で形成される凝固シエル８は、サイドダム４と水
冷ドラム３，３′の接触部に形成される凝固シエ
ル８′で連続されて一体となり、この凝固シエル
８′を介して固定しているサイドダム４を水冷ド
ラム３，３′と一諸に移動させようとする力が働
き、この力が凝固シエル８′に剪断力として働く
のである）、薄板１０の引抜き抵抗を著るしく増
大させ、引抜き不能又はサイドダム４の破損を招
き、鋳込み不能となる。 Furthermore, when a solidified shell 8' is formed between the fixed side dam 4 and the rotating water-cooled rolls 3, 3', a shearing force acts on the shell 8' (that is, as shown in FIG. , the solidified shell 8 formed on the side dam 4 and the solidified shell 8 formed on the water-cooled drums 3, 3' are the solidified shell 8' formed at the contact area between the side dam 4 and the water-cooled drums 3, 3'. A force acts to move the side dam 4, which is continuously integrated and fixed via the solidified shell 8', together with the water cooling drums 3, 3', and this force causes a shearing force on the solidified shell 8'. ), this significantly increases the pull-out resistance of the thin plate 10, making it impossible to pull it out or causing damage to the side dam 4, making it impossible to cast.
本発明は、以上の従来装置の問題点であるサイ
ドダムと水冷ドラム間の湯差し防止と、サイドダ
ムと水冷ドラム接触部の凝固シエルの生成防止又
は生成しても問題とならない程度に止どめること
を図り、常に安定した操業を行うことのできる金
属薄板の連続鋳造装置を提供するものである。 The present invention solves the above-mentioned problems of the conventional device by preventing hot water pouring between the side dam and the water-cooling drum, and preventing the formation of a solidified shell at the contact area between the side dam and the water-cooling drum, or suppressing the formation to such an extent that it does not become a problem. With this in mind, we provide a continuous casting machine for thin metal sheets that can always operate stably.
すなわち、本発明は、タンデイツシユ、一対の
水冷ドラム、一対の固定サイドダム、ガイドロー
ル及びピンチロールを主要構成とする金属薄板の
連続鋳造装置において、前記サイドダム下端の前
記水冷ドラム表面との接触部の溶湯側を切り欠
き、該サイドダムと水冷ドラム表面とで溶湯側が
開口するコ字型の溝を形成し、上記ドラム頂部よ
り溶湯に向けてドラム表面に沿つて延び、ドラム
表面に開口する、グラフアイトとガラス粉末との
混合粉末又は溶融ガラスの供給ガイドを設け、該
供給ガイドの下端を上記サイドダムの溝の上端に
接続したことを特徴とする金属薄板の連続鋳造装
置に関し、この溝内に充填された上記の混合粉末
や溶融ガラスによつて溶湯の漏れを防止すると共
に、該溝開口部での凝固シエルの生成を防止又は
遅らせて薄いシエルとし、サイドダムと水冷ドラ
ム間にまたがる凝固シエルに働く剪断力による抵
抗を最小限にとどめることにより、安定して金属
薄板と連続鋳造し得るものである。 That is, the present invention provides a continuous casting apparatus for thin metal sheets that mainly includes a tundish, a pair of water-cooled drums, a pair of fixed side dams, a guide roll, and a pinch roll, in which molten metal is removed at a portion of the lower end of the side dam that contacts the surface of the water-cooled drum. The side dam is cut out, and the side dam and the surface of the water-cooled drum form a U-shaped groove that opens on the molten metal side, extends from the top of the drum toward the molten metal along the drum surface, and opens on the drum surface. Continuous casting equipment for thin metal sheets, characterized in that a feed guide for mixed powder with glass powder or molten glass is provided, and the lower end of the feed guide is connected to the upper end of the groove of the side dam, and the groove is filled with The above-mentioned mixed powder and molten glass prevent leakage of the molten metal, and also prevent or delay the formation of a solidified shell at the groove opening to form a thin shell, and shear force applied to the solidified shell spanning between the side dam and the water-cooled drum. By minimizing the resistance caused by this, it is possible to stably and continuously cast metal sheets.
以下、添付図面を参照して本発明装置を詳細に
説明する。 Hereinafter, the apparatus of the present invention will be described in detail with reference to the accompanying drawings.
第３図は本発明装置の一実施態様例を示す概略
説明図、第４図はその一部拡大図である。 FIG. 3 is a schematic explanatory diagram showing one embodiment of the apparatus of the present invention, and FIG. 4 is a partially enlarged diagram thereof.
第３，４図中、第１，２図と同一符号は第１，
２図と同一機能部品を示し、４′は本発明に係る
サイドダムである。 In Figures 3 and 4, the same symbols as in Figures 1 and 2 are 1,
The same functional parts as in Fig. 2 are shown, and 4' is a side dam according to the present invention.
本発明装置は、第３，４図において、耐火・耐
熱性の一対の固定サイドダム４′の水冷ドラム３，
３′との接触部を切り欠き、該切り欠き部と水冷
ドラム表面とで溶湯プール７側が開口部となるコ
字型溝〔第４図のＣ−Ｃ断面図である第６図Ａ、
Ｂ中、符号１５で示す〕を形成し、該溝内にグラ
フアイトとガラス粉末との混合粉末１６又は溶融
ガラスを供給槽１２からガイド１３の溝１４を経
て供給するものである。第３，４図の場合の混合
粉末１６又は溶融ガラスの供給態様は、水冷ドラ
ム３，３′の回転に伴なつて運搬されるものであ
る。なお、第３，４図中、２２は水冷ドラム３，
３′上に付着した異物（溶融又は固化ガラス等）
の除去装置、２８は混合粉末１６、その溶融液
体、溶融ガラスの放出部である。 In the apparatus of the present invention, as shown in FIGS. 3 and 4, a water-cooled drum 3, a pair of fire-resistant and heat-resistant fixed side dams 4',
3' is cut out, and the cutout and the surface of the water-cooling drum form a U-shaped groove with an opening on the molten metal pool 7 side.
A mixed powder 16 of graphite and glass powder or molten glass is supplied into the groove from the supply tank 12 through the groove 14 of the guide 13. In the case of FIGS. 3 and 4, the mixed powder 16 or molten glass is supplied as the water-cooled drums 3 and 3' rotate. In addition, in FIGS. 3 and 4, 22 indicates the water-cooled drum 3,
Foreign matter attached to 3' (molten or solidified glass, etc.)
28 is a discharge section for the mixed powder 16, its molten liquid, and molten glass.
第５図Ａ、Ｂは第４図のＢ−Ｂ断面図で、上記
のガイド１３の断面構造を示している。第５図Ａ
はガイド１３の溝１４を経て混合粉末１６が運搬
されている状態を示し、第５図Ｂは溶融ガラスを
供給する場合で、ガイド１３の溝１４を経て溶融
ガラス２０が運搬されている状態を示しており、
第５図Ｂ中の２１は水冷ドラム３表面に凝固して
付着したガラスを示している。 5A and 5B are sectional views taken along the line BB in FIG. 4, showing the sectional structure of the guide 13 described above. Figure 5A
5B shows a state in which mixed powder 16 is being conveyed through the groove 14 of the guide 13, and FIG. It shows
21 in FIG. 5B indicates glass that has solidified and adhered to the surface of the water-cooled drum 3.
また、第４図のＣ−Ｃ断面図である第６図Ａ、
ＢのＡは混合粉末１６が溶湯プール７内の溶湯と
の接触部で溶融して液体１７となり、該液体１７
と混合粉末１６との中間部は溶融ガラス２０とな
り、溶湯プール７内の溶湯の漏れを防止している
状態を示している。該混合粉末１６中のガラス粉
末は熱伝導率が低く、またグラフアイト粉末は一
部が溶湯中の酸素や雰囲気中の酸素と化合して発
熱反応を起し、極部的に温度低下を防止し、この
部分における凝固シエルの生成を防止したり、そ
の生成を遅らせて薄いシエルとし、サイドダム
４′と水冷ドラム３，３′間にまたがつて生成した
凝固シエルの剪断抵抗を最小限にして、水冷ドラ
ム３，３′の駆動を容易にするのである。 Also, FIG. 6A, which is a cross-sectional view taken along line C-C in FIG.
In A of B, the mixed powder 16 melts at the contact part with the molten metal in the molten metal pool 7 and becomes a liquid 17, and the liquid 17
The intermediate portion between the molten metal and the mixed powder 16 becomes molten glass 20, which prevents leakage of the molten metal in the molten metal pool 7. The glass powder in the mixed powder 16 has a low thermal conductivity, and a portion of the graphite powder combines with oxygen in the molten metal and oxygen in the atmosphere to cause an exothermic reaction, thereby preventing a temperature drop in local areas. By preventing the formation of a solidified shell in this area or by delaying its formation to form a thin shell, the shear resistance of the solidified shell formed across the side dam 4' and the water cooling drums 3, 3' can be minimized. This facilitates the driving of the water-cooled drums 3, 3'.
第６図Ｂは、溶融ガラス２０を供給した場合で
あり、該溶融ガラス２０が溶湯プール７内の溶湯
と接つして液体１７となり、溶湯より離れた部分
はドラム３との接触部で固体ガラス２１、その上
部で溶融ガラス２０のままとなつている状態を示
している。第６図Ｂのものも、上記の第６図Ａの
ものと同様の、溶湯の漏れ防止と、凝固シエルの
生成防止（又は遅らせ）の作用、効果を有する。 FIG. 6B shows the case where molten glass 20 is supplied, and the molten glass 20 comes into contact with the molten metal in the molten metal pool 7 to become a liquid 17, and the part away from the molten metal is solid at the contact part with the drum 3. A state in which the glass 21 remains as molten glass 20 above it is shown. The one in FIG. 6B also has the same functions and effects as the one in FIG. 6A, which prevents leakage of molten metal and prevents (or delays) the formation of a solidified shell.
第７図および第８図は本発明装置の他の実施態
様例を示す概略説明図である。 FIGS. 7 and 8 are schematic explanatory diagrams showing other embodiments of the apparatus of the present invention.
第７図のものは、サイドダム４′の外側下部に
バツクアツプダム１９を設けたもので、該バツク
アツプダム１９は、耐火・耐熱性材製のサイドダ
ム４′を強度上放出部２８（第４図参照）のよう
な狭い部分まで延長することができないので、こ
れを補完し、かつ放出部２８の断面積を小さくし
て混合粉末や溶融ガラスの消費を少なくするため
のものであり、水冷鋼板製等のものが使用され
る。 In the one shown in FIG. 7, a back up dam 19 is provided at the lower part of the outside of the side dam 4'. Since it is not possible to extend into a narrow area such as the is used.
第８図のものは、混合粉末１６を圧送する装置
を設けたもので、該混合粉末１６は供給槽２６か
ら切り出し装置２７を介して圧送ケース２４に送
られ、液圧又は空圧装置２３で圧送板２５を図中
２５′で示す位置まで作動させることにより、上
記圧送ケース２４内の混合粉末１６が前記したガ
イド１３の溝１４を経てサイドダム４′のコ字型
溝１５内に圧送される。場合によつては、積極的
にコ字型溝開口部から溶湯側に混合粉末を押し出
し、溶湯シールや凝固シエルの生成防止を効果的
に行うこともできる。 The one in FIG. 8 is equipped with a device for pumping the mixed powder 16. The mixed powder 16 is sent from the supply tank 26 via the cut-out device 27 to the pumping case 24, and is then fed by a hydraulic or pneumatic device 23. By operating the pressure-feeding plate 25 to the position indicated by 25' in the figure, the mixed powder 16 in the pressure-feeding case 24 is forced into the U-shaped groove 15 of the side dam 4' through the groove 14 of the guide 13 described above. . In some cases, the mixed powder may be actively pushed out from the U-shaped groove opening toward the molten metal to effectively prevent the formation of a molten metal seal or solidified shell.
なお、溶融ガラスの圧送もこの第８図のものと
類似の装置で行うことができることは言うまでも
ない。 It goes without saying that the molten glass can also be conveyed under pressure using a device similar to the one shown in FIG.
第１図は従来の金属薄板の連続鋳造装置を示す
図、第２図は第１図のＡ−Ａ断面図、第３図は本
発明装置の一実施態様例を示す図、第４図は第３
図の一部拡大図、第５図Ａ、Ｂは第４図のＢ−Ｂ
断面図、第６図Ａ、Ｂは第４図のＣ−Ｃ断面図、
第７図および第８図は本発明装置の他の実施態様
例を示す図である。
FIG. 1 is a diagram showing a conventional continuous casting apparatus for thin metal sheets, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, FIG. 3 is a diagram showing an embodiment of the apparatus of the present invention, and FIG. Third
Partially enlarged view of the figure, Figure 5 A and B are B-B of Figure 4
Cross-sectional views, Figures 6A and B are CC cross-sectional views in Figure 4,
7 and 8 are diagrams showing other embodiments of the device of the present invention.
Claims (1)
固定サイドダム、ガイドロール及びピンチロール
を主要構成とする金属薄板の連続鋳造装置におい
て、前記サイドダム下端の前記水冷ドラム表面と
の接触部の溶湯側を切り欠き、該サイドダムと水
冷ドラム表面とで溶湯側が開口するコ字型の溝を
形成し、上記ドラム頂部より溶湯に向けてドラム
表面に沿つて延び、ドラム表面に開口する、グラ
フアイトとガラス粉末との混合粉末又は溶融ガラ
スの供給ガイドを設け、該供給ガイドの下端を上
記サイドダムの溝の上端に接続したことを特徴と
する金属薄板の連続鋳造装置。1. In a continuous casting apparatus for thin metal sheets, the main components of which are a tundish, a pair of water-cooled drums, a pair of fixed side dams, a guide roll, and a pinch roll, the molten metal side of the lower end of the side dam in contact with the surface of the water-cooled drum is cut out, The side dam and the surface of the water-cooled drum form a U-shaped groove that opens on the molten metal side, extends from the top of the drum toward the molten metal along the drum surface, and opens on the drum surface.A mixture of graphite and glass powder. A continuous casting apparatus for thin metal sheets, characterized in that a supply guide for powder or molten glass is provided, and a lower end of the supply guide is connected to an upper end of the groove of the side dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6041582A JPS58179543A (en) | 1982-04-13 | 1982-04-13 | Continuous casting device of thin metallic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6041582A JPS58179543A (en) | 1982-04-13 | 1982-04-13 | Continuous casting device of thin metallic plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58179543A JPS58179543A (en) | 1983-10-20 |
| JPH0362504B2 true JPH0362504B2 (en) | 1991-09-26 |
Family
ID=13141531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6041582A Granted JPS58179543A (en) | 1982-04-13 | 1982-04-13 | Continuous casting device of thin metallic plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58179543A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2653693A1 (en) * | 1989-10-27 | 1991-05-03 | Siderurgie Fse Inst Rech | METHOD AND DEVICE FOR CONTINUOUS CASTING THIN METAL PRODUCTS BETWEEN TWO CYLINDERS. |
| FR2656244A1 (en) * | 1989-12-26 | 1991-06-28 | Siderurgie Fse Inst Rech | DEVICE FOR CONTINUOUSLY CASTING THIN METAL PRODUCTS BETWEEN TWO ROTATED COOLED CYLINDERS. |
| US5651412A (en) * | 1995-10-06 | 1997-07-29 | Armco Inc. | Strip casting with fluxing agent applied to casting roll |
-
1982
- 1982-04-13 JP JP6041582A patent/JPS58179543A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58179543A (en) | 1983-10-20 |
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