JPH0394958A - Continuous casting apparatus - Google Patents
Continuous casting apparatusInfo
- Publication number
- JPH0394958A JPH0394958A JP23112289A JP23112289A JPH0394958A JP H0394958 A JPH0394958 A JP H0394958A JP 23112289 A JP23112289 A JP 23112289A JP 23112289 A JP23112289 A JP 23112289A JP H0394958 A JPH0394958 A JP H0394958A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- inert gas
- supplied
- air
- continuous casting
- 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.)
- Granted
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 81
- 239000011261 inert gas Substances 0.000 claims abstract description 28
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、ベルト式や双ロール式などの循環移動する
移動型を備えた連続鋳造装置の改良に関し、溶湯の溜ま
り高さの制御と溜まった溶湯の表面の酸化を防止できる
ようにしたものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the improvement of continuous casting equipment equipped with a moving type that circulates, such as a belt type or twin roll type. This prevents oxidation of the surface of the molten metal.
Ｃ従来の技術］
連続鋳造装置の一つに垂直面内にて互いに逆の方向に循
環移動する１対の移動型を用いるベルト式や双ロール式
などの連続鋳造装置がある。C. Prior Art] One type of continuous casting apparatus is a belt-type or twin-roll type continuous casting apparatus that uses a pair of movable molds that circulate in opposite directions in a vertical plane.
このような連続鋳造装置の一例は、特開昭６２− １．
６ ８ ５ ６号公報に開示されており、その構造は
、第３図に示すように、左右１対の移動型１．２を構或
する左側の移動型１はロール３とガイドロール４，５に
掛けられた無端ベルト６て構成され、右側の移動型２が
比較的大径のロール７で構或されている。これら１対の
移動型１．２の両端部がサイドシール８とシール９で覆
われて溶湯プールが形或され、この溶湯プール内である
移動型１，２の間の上側に溶湯桶１０が配置され、ギャ
ップ調整手段１１によって上下方向に移動できるように
なっている。この溶湯桶１０の底部には、溶融金属を溶
湯ブール内に注ぐためのノスル１２が形成されている。An example of such a continuous casting apparatus is disclosed in JP-A-62-1.
This is disclosed in Japanese Patent Application No. 6,856, and its structure is as shown in FIG. The movable die 2 on the right side is composed of a roll 7 having a relatively large diameter. Both ends of the pair of movable molds 1.2 are covered with side seals 8 and seals 9 to form a molten metal pool, and a molten metal bucket 10 is placed above the movable molds 1 and 2 within this molten metal pool. It is arranged so that it can be moved in the vertical direction by the gap adjustment means 11. A nostle 12 is formed at the bottom of the molten metal pail 10 for pouring molten metal into the molten metal boule.
したがって、移動型１，２を、図中矢印で示すように、
互いに逆方向に循環移動しながら溶湯桶１０に溶融金属
を注ぐと、サイドシール８とシール９で囲まれた溶湯プ
ール内の金属が移動型１，２の表面でに連続的に冷却凝
固されるとともに、厚さを規制されて連続鋳造が行われ
る。Therefore, as shown by the arrow in the figure, the mobile types 1 and 2 are
When molten metal is poured into the molten metal bucket 10 while circulating in opposite directions, the metal in the molten metal pool surrounded by the side seals 8 and seals 9 is continuously cooled and solidified on the surfaces of the movable molds 1 and 2. At the same time, continuous casting is performed with the thickness regulated.
そして、ギャップ調整手段１１によって溶湯桶１０を上
下動することで、移動型１，２とノズル１２とのギャッ
プが変化し、溶融金属の溶湯プール部分への注入量を変
えることができるようになっている。By moving the molten metal bucket 10 up and down by the gap adjustment means 11, the gap between the movable molds 1, 2 and the nozzle 12 changes, making it possible to change the amount of molten metal injected into the molten metal pool. ing.
［発明が解決しようとする課題〕
このような連続鋳造装置では、溶湯プール内の場面の位
置をギャップ調整手段１１によって調整することができ
るものの、板厚、鋳造速度により溶湯涌１０から注がれ
た湯は、１対の移動型１．２とサイドシール８及びシー
ル９で囲まれた溶湯ブール部分に溜まることになるが、
溶融金属の表面が大気に触れることから酸化被膜ができ
やすいという問題があった。[Problems to be Solved by the Invention] In such a continuous casting apparatus, although the position of the scene in the molten metal pool can be adjusted by the gap adjustment means 11, the position of the molten metal poured from the molten metal pool 10 may vary depending on the plate thickness and casting speed. The molten metal will accumulate in the molten metal boule surrounded by the pair of movable molds 1.2, side seals 8 and seals 9,
There was a problem in that the surface of the molten metal was exposed to the atmosphere, making it easy to form an oxide film.
この発明は、かかる従来技術の問題点に鑑みてなされた
もので、溶湯桶から移動型の上部に注がれる溶融金属表
面の酸化を防止できるとともに、湯而の高さも簡単に調
整できる連続鋳造装置を提供しようとするものである。This invention was made in view of the problems of the prior art, and is capable of preventing oxidation of the surface of the molten metal poured from the molten metal bucket onto the top of the movable mold, as well as allowing the height of the molten metal to be easily adjusted. The aim is to provide equipment.
［課題を解決するための手段］
上記従来技術が有する課題を解決するため、この発明の
連続鋳造装置は、垂直面内にて互いに逆の方向に循環移
動する１対の移動型を設け、この１対の移動型の間の上
方に溶融金属を注ぐノズルを底部に備えた溶湯内に浸漬
したように溶湯桶を設け、この溶場桶の周囲に前記１対
の移動型の表面と摺接状態でシールされる気密室を形戒
し、この気密室に前記移動型に注渇された溶融金属表面
の酸化を防止しつつ溶融金属の高さを制御し得る不活性
ガス加圧供給手段を接続したことを特徴とするものであ
る。[Means for Solving the Problems] In order to solve the problems of the above-mentioned prior art, the continuous casting apparatus of the present invention is provided with a pair of movable molds that circulate in opposite directions in a vertical plane. A molten metal pail is provided above the pair of movable molds, the bottom of which is equipped with a nozzle for pouring molten metal so that it is immersed in the molten metal, and the surface of the pair of movable molds is in sliding contact around the molten pail. In this airtight chamber, an inert gas pressurized supply means is provided which can control the height of the molten metal while preventing oxidation of the surface of the molten metal poured into the movable type. It is characterized by being connected.
［作 用］
この連続鋳造装置によれば、１対の移動型の上方に設け
られる溶湯桶の周囲に、移動型の表面と摺接状態でシー
ルする気密室を形成し、この中に不活性ガス加圧供給手
段から不活性ガスを供給するようにＬてあり、移動型上
部に溜まる溶湯を不活性ガスで覆って酸化を防止すると
ともに、気密室内の不活性ガスの圧力を調整して溶湯の
場面の高さを調整するようにしている。[Function] According to this continuous casting apparatus, an airtight chamber is formed around the molten metal bucket provided above a pair of movable molds, and is sealed in sliding contact with the surface of the movable molds, and an inert gas is contained in the airtight chamber. The inert gas is supplied from the pressurized gas supply means, and the molten metal that accumulates in the upper part of the movable mold is covered with inert gas to prevent oxidation, and the pressure of the inert gas in the airtight chamber is adjusted to remove the molten metal. I am trying to adjust the height of the scene.
［実施例］
以下、この発明の一実施例を図面に基づき詳細に説明す
る。[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.
第１図及び第２図はこの発明の連続鋳造装置を双ロール
式の連続鋳造装置に適用したー実施例にかかる横断面図
および平面図である。FIGS. 1 and 2 are a cross-sectional view and a plan view of an embodiment in which the continuous casting apparatus of the present invention is applied to a twin-roll type continuous casting apparatus.
この連続鋳造装置２０では、垂直面内にて互いに逆方向
に循環移動する１対の移動型２１．２２がそれぞれロー
ル２３．２４の外周部で構威され、一定の間隔を開けて
左右に配置されている。In this continuous casting apparatus 20, a pair of movable molds 21 and 22 that circulate in opposite directions in a vertical plane are arranged on the outer periphery of the rolls 23 and 24, and are arranged on the left and right sides with a constant interval. has been done.
この１対の移動型２１．２２の間の上方には、溶湯桶２
５が配置されており、その底面はそれぞれのロール２３
．２４の外周面に沿う円弧状に形成され、ロール２３
（２４）との間に一定のギャップが形成されている。そ
して、この溶湯桶２５の底部両側にロール２３．２４の
軸方向と平行にノズル２６が形成され、移動型２１．２
２の中央部の上方から溶湯を注ぐことができるようにな
っている。Above between this pair of movable molds 21 and 22 is a molten metal bucket 2.
5 are arranged, and the bottom surface of each roll 23
．． It is formed in an arc shape along the outer peripheral surface of the roll 23.
A certain gap is formed between (24) and (24). Nozzles 26 are formed on both sides of the bottom of this molten metal bucket 25 in parallel to the axial direction of the rolls 23.24, and the movable molds 21.2
The molten metal can be poured from above the center of 2.
さらに、この溶湯＄１１２ ５の外部には、第２図に示
すように、ロール２３．２４表面側など底部分が開口す
る気密室２７が一体に形或してあり、気密室２７の周囲
に取付けたサイドシール２８とシール２９によってロー
ル２３．２４表面と摺接状態でシールでき、移動型２１
．２２上部の溶湯が注がれる空間（溶湯プール）を気密
状態に保持できるようになっている。Further, outside the molten metal $1125, as shown in FIG. The installed side seals 28 and seals 29 can be sealed in sliding contact with the roll 23 and 24 surfaces, and the movable type 21
．． The space above 22 into which the molten metal is poured (molten metal pool) can be kept airtight.
このような気密室２７には、不活性ガス加圧供給手段３
０が配管３１を介して接続されている。In such an airtight chamber 27, an inert gas pressurized supply means 3 is provided.
0 is connected via piping 31.
この不活性ガス加圧供給手段３０としては、ガスボンベ
などの不活性ガス源３２から供給される不活性ガスを圧
力調整弁３３で圧力調整したのち気密室２７に送るよう
になっており、供給圧力を制御するため、配管３１の途
中に圧力計３４が設けられるとともに、移動型２１．２
２上の溶湯面を検出するため湯面検出器３５が設けられ
て制御装置３６と接続され、制御装置３６の出力信号が
圧力調整弁３３に送られるようになっている。This inert gas pressurized supply means 30 is designed to adjust the pressure of inert gas supplied from an inert gas source 32 such as a gas cylinder with a pressure regulating valve 33 and then send it to the airtight chamber 27, so that the supply pressure A pressure gauge 34 is provided in the middle of the pipe 31 to control the
A molten metal level detector 35 is provided to detect the molten metal level above the molten metal 2 and is connected to a control device 36, so that an output signal from the control device 36 is sent to the pressure regulating valve 33.
この湯面検出器３５としては、湯面位置を光学的に検出
するものや湯面を境とする温度差からの検出するものな
どが使用される。As the hot water level detector 35, a type that optically detects the hot water level position or a type that detects the temperature difference between the hot water level and the like is used.
このように構威された連続鋳造装置２０による連続鋳造
は、次のようにして行われる。Continuous casting by the continuous casting apparatus 20 configured as described above is performed as follows.
移動型２１．２２を、図中矢印で示すように、互いに逆
方向に循環移動（回転駆動）し、溶湯桶２５に溶融金属
Ｍを連続的に注ぐ。The movable molds 21 and 22 are circulated (rotated) in opposite directions as shown by arrows in the figure, and molten metal M is continuously poured into the molten metal bucket 25.
すると、溶湯桶２５の底部のノズル２６から移動型２１
．２２の間に溶湯が供給され、徐々に冷却凝固され、ロ
ール２３．２４間で圧延されて連続的に送り出され、連
続鋳造が行われる。Then, the movable mold 21 is released from the nozzle 26 at the bottom of the molten metal bucket 25.
．． Molten metal is supplied between 22, gradually cooled and solidified, rolled between rolls 23 and 24, and continuously sent out to perform continuous casting.
この連続鋳造の際、溶湯桶２５から移動型２１，２２上
に溶湯が供給されるが、この部分が移動型２１．２２の
表面、溶湯桶２５の底部分、気密室２７及びサイドシー
ル２８、シール２９で気密状態となっており、しかも不
活性ガス加圧供給手段３０から不活性ガスが供給される
ようになっているので、溶湯表面が空気に接触せず、酸
化を防止することができるとともに、気密空間内に溶湯
が供給されるので、外部に溢れ出すことも防止できる。During this continuous casting, molten metal is supplied from the molten metal bucket 25 onto the movable molds 21 and 22, and these parts are the surfaces of the movable molds 21 and 22, the bottom of the molten metal bucket 25, the airtight chamber 27, the side seals 28, Since it is in an airtight state with the seal 29 and inert gas is supplied from the inert gas pressurized supply means 30, the surface of the molten metal does not come into contact with air and oxidation can be prevented. At the same time, since the molten metal is supplied into the airtight space, it can also be prevented from overflowing to the outside.
また、移動型２１．２２上の溶湯の湯面を場面検出器３
５で検出し、その場面に応じて気密室２７に供給される
不活性ガスの圧力を圧力調整弁３３で調整して供給でき
るので、場面が高くなった場合には、圧力を上昇し、場
面が低下した場合には、圧力を下げるようにして湯而を
一定に保つことができ、溶湯桶２５の溶湯量にかかわら
ず場面を一定に保つことができる。In addition, the surface of the molten metal on the movable mold 21 and 22 is detected by the scene detector 3.
5, and the pressure of the inert gas supplied to the airtight chamber 27 can be adjusted and supplied to the airtight chamber 27 according to the situation.If the situation becomes high, the pressure is increased and the pressure is increased. When the amount of molten metal decreases, the pressure can be lowered to keep the temperature constant, and the situation can be kept constant regardless of the amount of molten metal in the molten metal tub 25.
さらに、溶湯桶２５内の溶湯の撹拌を必要とする場合に
は、気密室２７内に供給される不活性ガスの供給圧力を
高め、ノズル２６から不活性ガスを逆流させるようにす
ることで、不活性ガスによる溶湯の撹拌ができる。Furthermore, when it is necessary to stir the molten metal in the molten metal bucket 25, the supply pressure of the inert gas supplied into the airtight chamber 27 is increased and the inert gas is caused to flow back from the nozzle 26. Molten metal can be stirred using inert gas.
なお、上記実施例では、双ロール式の連続鋳造装置に適
用した場合で説明したが、ベルト式など循環移動する１
対の移動型を用いる場合に広く適用することができる。In the above embodiment, the description was given of the case where the application was applied to a twin roll type continuous casting machine, but it was explained that it was applied to a twin roll type continuous casting machine.
It can be widely applied when using a pair of moving types.
［発明の効果］
以上、一実施例とともに具体的に説明したようにこの発
明の連続鋳造装置によれば、１対の移動型の上方に設け
られる溶湯桶の周囲に、移動型の表面と摺接状態でシー
ルする気密室を形成し、この中に不活性ガス加圧供給手
段から不活性ガスを供給するようにしたので、移動型上
部に溜まる溶湯を不活性ガスで覆って酸化を防止すると
ともに、気密室内の不活性ガスの圧力を調整して溶湯の
湯面の高さを調整することができる。[Effects of the Invention] As described above in detail with one embodiment, according to the continuous casting apparatus of the present invention, the surface of the movable molds and the sliding surface are formed around the molten metal bucket provided above the pair of movable molds. An airtight chamber is formed that is sealed when the mold is in contact with the mold, and an inert gas is supplied into the chamber from the pressurized inert gas supply means, so that the molten metal that accumulates at the top of the movable mold is covered with inert gas to prevent oxidation. At the same time, the height of the molten metal surface can be adjusted by adjusting the pressure of the inert gas in the airtight chamber.
また、不活性ガスの圧力を高めることで、ノズルから溶
湯桶内に不活性ガスを供給することもでき、溶湯の撹拌
ができる。Further, by increasing the pressure of the inert gas, the inert gas can be supplied from the nozzle into the molten metal bucket, and the molten metal can be stirred.
かかる横断面図および平面図である。FIG. 2 is such a cross-sectional view and a plan view.
第３図は従来のベルト式の連続鋳造装置の概略断面図で
ある。FIG. 3 is a schematic cross-sectional view of a conventional belt-type continuous casting apparatus.
２０：連続鋳造装置、２１，２２：移動型、２３，２４
：ロール、２５：溶湯桶、２６：ノズル、２７：気密室
、２８：サイドシール、２９：シール、３０：不活性ガ
ス加圧供給手段、３１：配管、３２：不活性ガス源、３
３；圧力調整弁、３４：圧力計、３５：湯而検出器、３
６：制御装置、Ｍ：溶融金属。20: Continuous casting device, 21, 22: Mobile type, 23, 24
: Roll, 25: Molten metal bucket, 26: Nozzle, 27: Airtight chamber, 28: Side seal, 29: Seal, 30: Inert gas pressurized supply means, 31: Piping, 32: Inert gas source, 3
3; Pressure adjustment valve, 34: Pressure gauge, 35: Water detector, 3
6: Control device, M: Molten metal.
Claims (1)
動型を設け、この１対の移動型の間の上方に溶融金属を
注ぐノズルを底部に備えた溶湯桶を設け、この溶湯桶の
周囲に前記１対の移動型の表面と摺接状態でシールされ
る気密室を形成し、この気密室に前記移動型に注湯され
た溶融金属表面の酸化を防止しつつ溶融金属の高さを制
御し得る不活性ガス加圧供給手段を接続したことを特徴
とする連続鋳造装置。A pair of movable molds that circulate in opposite directions in a vertical plane are provided, a molten metal pail equipped with a nozzle at the bottom for pouring molten metal is provided above between the pair of movable molds, and the molten metal pail is An airtight chamber is formed around the movable molds and sealed in sliding contact with the surfaces of the pair of movable molds, and the molten metal poured into the movable molds is heated to a high temperature while preventing oxidation of the surface of the molten metal poured into the movable molds. 1. A continuous casting apparatus, characterized in that it is connected to an inert gas pressurized supply means capable of controlling the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1231122A JP2830154B2 (en) | 1989-09-06 | 1989-09-06 | Continuous casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1231122A JP2830154B2 (en) | 1989-09-06 | 1989-09-06 | Continuous casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0394958A true JPH0394958A (en) | 1991-04-19 |
| JP2830154B2 JP2830154B2 (en) | 1998-12-02 |
Family
ID=16918630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1231122A Expired - Fee Related JP2830154B2 (en) | 1989-09-06 | 1989-09-06 | Continuous casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2830154B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100605700B1 (en) * | 2001-08-09 | 2006-08-01 | 주식회사 포스코 | Apparatus for supplying shielding gas on strip casting rolls |
| JP2008200236A (en) * | 2007-02-20 | 2008-09-04 | Matsushita Electric Works Ltd | Massage machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58107255A (en) * | 1981-12-22 | 1983-06-25 | Nippon Steel Corp | Method and device for charging molten metal in continuous casting |
| JPS59194356U (en) * | 1983-06-07 | 1984-12-24 | 日立造船株式会社 | Mold weir of twin mold roller type continuous casting equipment |
| JPS6216856A (en) * | 1985-07-17 | 1987-01-26 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for continuous casting |
-
1989
- 1989-09-06 JP JP1231122A patent/JP2830154B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58107255A (en) * | 1981-12-22 | 1983-06-25 | Nippon Steel Corp | Method and device for charging molten metal in continuous casting |
| JPS59194356U (en) * | 1983-06-07 | 1984-12-24 | 日立造船株式会社 | Mold weir of twin mold roller type continuous casting equipment |
| JPS6216856A (en) * | 1985-07-17 | 1987-01-26 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for continuous casting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100605700B1 (en) * | 2001-08-09 | 2006-08-01 | 주식회사 포스코 | Apparatus for supplying shielding gas on strip casting rolls |
| JP2008200236A (en) * | 2007-02-20 | 2008-09-04 | Matsushita Electric Works Ltd | Massage machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2830154B2 (en) | 1998-12-02 |
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