JPH0424138B2 - - Google Patents
Info
- Publication number
- JPH0424138B2 JPH0424138B2 JP59077216A JP7721684A JPH0424138B2 JP H0424138 B2 JPH0424138 B2 JP H0424138B2 JP 59077216 A JP59077216 A JP 59077216A JP 7721684 A JP7721684 A JP 7721684A JP H0424138 B2 JPH0424138 B2 JP H0424138B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- side seal
- casting machine
- plate
- nozzle
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 32
- 238000005266 casting Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012056 semi-solid material Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel 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
-
- 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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は溶湯より直接に板を連続的に鋳造する
装置において、サイドシールへの凝固物の生成及
び溶湯プール表層での半凝固物の生成を防止する
ようにした板連続鋳造機に関するものである。Detailed Description of the Invention [Industrial Field of Application] The present invention is an apparatus for continuously casting plates directly from molten metal, and is capable of forming a solidified product on a side seal and a semi-solidified product on the surface layer of a molten metal pool. The present invention relates to a continuous plate casting machine designed to prevent such problems.
従来、例えば双ロール式板連続鋳造機では第１
図及び第２図に示すように、内部冷却した双ロー
ルａのギヤツプＧ上方にバレルシールｂ及びサイ
ドシールｃにより溶湯プールｄを形成し、タンデ
イシユｅ内の溶湯をノズルｆから注湯しつつ、溶
湯プールｄ内の溶湯を双ロールａにより冷却し、
板ｇを連続的に鋳出している。
Conventionally, for example, in a twin-roll continuous plate casting machine, the first
As shown in the figure and FIG. 2, a molten metal pool d is formed above the gap G of the internally cooled twin rolls a by a barrel seal b and a side seal c, and while pouring the molten metal in the tundish e from the nozzle f, The molten metal in the molten metal pool d is cooled by twin rolls a,
Plate g is continuously cast.
しかし、ギヤツプＧの長さは鋳造すべき板ｇの
板幅と同一であるのに対し、ノズルｆよりの注湯
位置はギヤツプＧ長手方向略中央一箇所であるた
め、溶湯プールｄ内表層の溶湯は大気により冷却
されて半凝固物を形成し易い。又、サイドシール
ｃの内側面にも徐々に凝固物ｈが形成され、巨大
化する。該凝固物ｈや前記半凝固物が混入した状
態で鋳出されると、板ｇの強度の厚さが不均一と
なり、著しい場合には板切れ、板割れ等を生ず
る。 However, while the length of the gap G is the same as the width of the plate g to be cast, the position of pouring from the nozzle f is approximately at the center of the gap G in the longitudinal direction. The molten metal is likely to be cooled by the atmosphere and form a semi-solid material. Further, a solidified substance h is gradually formed on the inner surface of the side seal c, and becomes large. If the plate g is cast with the solidified material h or the semi-solidified material mixed in, the strength and thickness of the plate g will be uneven, and in severe cases, plate breakage, plate cracking, etc. will occur.
本発明は板切れ、板割れ、板厚変動等の少ない
強度の均一な品質のよい板を鋳造できる板連続鋳
造機を提供することを目的とする。
SUMMARY OF THE INVENTION An object of the present invention is to provide a continuous plate casting machine capable of casting uniform, high-quality plates with less plate breakage, plate cracking, and plate thickness variation.
本発明は、溶湯を冷却しつつギヤツプを通過せ
しめて連続的に板を鋳造する板連続鋳造機におい
て、注湯用のノズルの各サイドシール側の両側に
加熱バーナを、該各加熱バーナの噴出口がギヤツ
プ上方の溶湯の表面に向き且つ各サイドシール側
に向くよう斜めに配設することにより、サイドシ
ールへの凝固物の生成及び溶湯プール表層での半
凝固物の生成を同時に防止して、品質のよい板を
鋳造できるようにした板連続鋳造機にかかるもの
である。
The present invention provides a continuous sheet casting machine that continuously casts sheets by passing the molten metal through a gap while cooling it, and in which heating burners are installed on both sides of each side seal side of a nozzle for pouring the metal. By arranging the outlet diagonally so that it faces the surface of the molten metal above the gap and toward each side seal, it is possible to simultaneously prevent the formation of coagulated substances on the side seals and the formation of semi-solidified substances on the surface layer of the molten metal pool. This involves a continuous plate casting machine that can cast high-quality plates.
以下、本発明の実施例を図面を参照しつつ説明
する。
Embodiments of the present invention will be described below with reference to the drawings.
第３図は本発明の一実施例を示すもので、１は
内部冷却可能な双ロール、２はサイドシールであ
り、タンデイシユ３のノズル４を双ロール１のギ
ヤツプＧの中間上方に配置し、該ノズル４の下端
をギヤツプＧを近接せしめて該ノズル４より注湯
した溶湯５の溶湯プール６内に浸漬し得るように
してある。 FIG. 3 shows an embodiment of the present invention, in which 1 is internally coolable twin rolls, 2 is a side seal, the nozzle 4 of the tundish 3 is arranged above the middle of the gap G of the twin rolls 1, The lower end of the nozzle 4 is placed close to a gap G so that it can be immersed in a molten metal pool 6 of molten metal 5 poured from the nozzle 4.
更に、該ノズル４の各サイドシール２側の両側
に加熱バーナ７，７′を、該各加熱バーナ７，
７′の噴射口８，８′が前記溶湯プール６の表面及
び各サイドシール２側に向くよう斜めに配設して
ある。 Further, heating burners 7, 7' are provided on both sides of each side seal 2 side of the nozzle 4,
The injection ports 8, 8' of the molten metal pool 7' are arranged obliquely so as to face the surface of the molten metal pool 6 and the side seals 2.
以上のように構成したので、溶鋼鍋９よりタン
デイシユ３に流し込んだ溶湯をノズル４より溶湯
プール６内に注湯し、該ノズル４の下端部を溶湯
５内に浸漬し、双ロール１を回転せしめて溶湯５
を冷却しつつ板１０を鋳出すると共に加熱バーナ
７，７′を点火して火炎を溶湯５表面に各サイド
シール２方向に噴射する。 With the above structure, the molten metal poured into the tundish 3 from the molten steel ladle 9 is poured into the molten metal pool 6 through the nozzle 4, the lower end of the nozzle 4 is immersed in the molten metal 5, and the twin rolls 1 are rotated. At least molten metal 5
While cooling the plate 10, the heating burners 7 and 7' are ignited to spray flame onto the surface of the molten metal 5 in the direction of each side seal 2.
溶湯５表面は火炎により加熱されるため半凝固
物の生成は防止され、更に、表層の溶湯５が加熱
された状態で火炎の噴射力により両サイドシール
２方向に強制的に移動し、サイドシール２の内側
面に沿つて下降し、再び溶湯プール６内中央部を
経てノズル４近傍の表層に至り循環するので、サ
イドシール２内側面が常に加熱溶湯により洗われ
ることとなり、サイドシール２内側面に凝固物が
付着しないか或は僅かに付着してもすぐに溶かさ
れ除去される。 Since the surface of the molten metal 5 is heated by the flame, the formation of semi-solidified material is prevented.Furthermore, while the molten metal 5 on the surface layer is heated, it is forcibly moved in the two directions of both side seals by the jet force of the flame, and the side seals are formed. The heated molten metal descends along the inner surface of the side seal 2, passes through the center of the molten pool 6 again, reaches the surface layer near the nozzle 4, and circulates, so that the inner surface of the side seal 2 is constantly washed with the heated molten metal. Even if no coagulum adheres or a small amount of coagulum adheres, it is quickly dissolved and removed.
従つて、溶湯プール６内は凝固物或は半凝固物
の生成が非常に少なくなり、均一な温度に維持さ
れるため、品質良好な板１０を連続鋳造すること
ができる。 Therefore, very little solidified or semi-solidified material is produced in the molten metal pool 6, and the temperature is maintained at a uniform temperature, so that plates 10 of good quality can be continuously cast.
なお、本発明の板連続鋳造機は上述の実施例の
みに限定されるものではなく、双ロール式ばかり
でなく双ベルト式或は双キヤタピラ式の場合にも
適用し得ること等、本発明の要旨を逸脱しない範
囲内において種々変更を加え得ることは勿論であ
る。 It should be noted that the continuous plate casting machine of the present invention is not limited to the above-mentioned embodiments, but can be applied not only to the twin roll type but also to the twin belt type or twin caterpillar type. Of course, various changes may be made without departing from the spirit of the invention.
以上述べたように本発明の板連続鋳造機によれ
ば、加熱バーナの火炎を溶湯プール表面にノズル
からサイドシール方向へ噴射するようにしたの
で、溶湯表面が加熱されるため半凝固物の生成を
防止でき、且つ加熱及び加熱バーナの噴射によつ
て強制的に発生する加熱溶湯流がサイドシール内
側面を下降するように溶湯プール内を循環するた
め、サイドシールへの凝固物の付着を防止でき
る。従つて、溶湯プール内は常に均一の温度に維
持されるため、鋳出される板は板切れ、板割れ、
板厚変動等の少ない強度の均一なものとなる。
As described above, according to the continuous sheet casting machine of the present invention, the flame of the heating burner is injected onto the surface of the molten metal pool from the nozzle in the direction of the side seal, so that the surface of the molten metal is heated and a semi-solid product is generated. In addition, since the heated molten metal flow forcibly generated by heating and injection from the heating burner circulates in the molten metal pool so as to descend on the inner surface of the side seal, it prevents solidified matter from adhering to the side seal. can. Therefore, the inside of the molten metal pool is always maintained at a uniform temperature, so the plate that is cast out will not be cut, cracked, or
This results in uniform strength with little variation in plate thickness.
第１図は従来の双ロール式板連続鋳造機の一例
を示す説明図、第２図は第１図の−方向矢視
図、第３図は本発明の板連続鋳造機の一実施例の
説明図である。
１は双ロール、２はサイドシール、４はノズ
ル、７，７′は加熱バーナ、８，８′は噴射口を示
す。
Fig. 1 is an explanatory diagram showing an example of a conventional twin-roll type continuous plate casting machine, Fig. 2 is a view taken in the - direction arrow of Fig. 1, and Fig. 3 is an explanatory diagram showing an example of the continuous plate casting machine of the present invention. It is an explanatory diagram. 1 is a twin roll, 2 is a side seal, 4 is a nozzle, 7 and 7' are heating burners, and 8 and 8' are injection ports.
Claims (1)
続的に板を鋳造する板連続鋳造機において、注湯
用のノズルの各サイドシール側の両側に加熱バー
ナを、該各加熱バーナの噴出口がギヤツプ上方の
溶湯の表面に向き且つ各サイドシール側に向くよ
う斜めに配設したことを特徴とする板連続鋳造
機。1. In a continuous plate casting machine that continuously casts plates by passing the molten metal through a gap while cooling it, heating burners are installed on both sides of each side seal side of the pouring nozzle, and the spout of each heating burner is connected to the gap. A continuous plate casting machine characterized by being installed diagonally so as to face the surface of the molten metal above and face the side seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7721684A JPS60221154A (en) | 1984-04-17 | 1984-04-17 | Continuous casting machine for plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7721684A JPS60221154A (en) | 1984-04-17 | 1984-04-17 | Continuous casting machine for plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60221154A JPS60221154A (en) | 1985-11-05 |
| JPH0424138B2 true JPH0424138B2 (en) | 1992-04-24 |
Family
ID=13627642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7721684A Granted JPS60221154A (en) | 1984-04-17 | 1984-04-17 | Continuous casting machine for plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60221154A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2741555B1 (en) * | 1995-11-23 | 1997-12-26 | Usinor Sacilor | NOZZLE FOR THE INTRODUCTION OF A LIQUID METAL INTO A CONTINUOUS CASTING LINGOT OF METAL PRODUCTS, AND CONTINUOUS CASTING INSTALLATION OF METAL PRODUCTS EQUIPPED WITH SUCH A NOZZLE |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60166452U (en) * | 1984-04-09 | 1985-11-05 | 三菱重工業株式会社 | Continuous casting equipment |
-
1984
- 1984-04-17 JP JP7721684A patent/JPS60221154A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60221154A (en) | 1985-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |