JPS6241832B2 - - Google Patents
Info
- Publication number
- JPS6241832B2 JPS6241832B2 JP2702083A JP2702083A JPS6241832B2 JP S6241832 B2 JPS6241832 B2 JP S6241832B2 JP 2702083 A JP2702083 A JP 2702083A JP 2702083 A JP2702083 A JP 2702083A JP S6241832 B2 JPS6241832 B2 JP S6241832B2
- Authority
- JP
- Japan
- Prior art keywords
- pair
- cooling
- rolls
- sides
- supporting
- 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
- 238000001816 cooling Methods 0.000 claims description 31
- 238000009749 continuous casting Methods 0.000 claims description 11
- 230000000573 anti-seizure effect Effects 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect 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
- B22D11/0637—Accessories therefor
- B22D11/0648—Casting surfaces
- B22D11/066—Side dams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】
この発明は、薄肉鋳片の水平連続鋳造装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a horizontal continuous casting apparatus for thin-walled slabs.
近年、水平連続鋳造装置により10〜50mm程度の
薄肉鋳片を鋳造する試みがなされている。この装
置によれば、圧延工程を経ずに直接薄肉鋳片を得
ることができるので、鋳片の製造時間が大巾に短
縮されるとともに圧延設備が不要となるので大巾
に設備費を削減することができる等、種々の利点
がもたらされる。 In recent years, attempts have been made to cast thin slabs of approximately 10 to 50 mm using horizontal continuous casting equipment. With this equipment, thin-walled slabs can be obtained directly without going through the rolling process, so the production time for slabs is greatly shortened, and rolling equipment is no longer required, resulting in a significant reduction in equipment costs. Various advantages are brought about, such as the ability to
従来、上記水平連続鋳造装置としては、例えば
特開昭56−62659号公報に開示されるものがあ
る。 Conventionally, as the above-mentioned horizontal continuous casting apparatus, there is one disclosed in, for example, Japanese Patent Application Laid-Open No. 56-62659.
この水平連続鋳造装置について第１図を参照し
ながら説明する。 This horizontal continuous casting apparatus will be explained with reference to FIG.
第１図において、１はタンデイツシユ、２はタ
ンデイツシユ１の側壁下部に水平に固定されたノ
ズル、３，３′はノズル２の前方に間隔をあけて
設けられた一対の上ロール、４，４′は一対の上
ロール３，３′の下方に、これらのロール３，
３′と若干の間隔をあけて対向して設けられた一
対の下ロール、５は一対の上ロール３，３′と一
対の下ロール４，４′とにそれぞれ周回された無
端ベルト、６は無端ベルト５を冷却するための冷
却手段としての冷却箱、７は無端ベルト５の張力
を一定に維持するためのシリンダ、８はピンチロ
ーラ、そして、９はガイドローラである。 In FIG. 1, 1 is a tundish, 2 is a nozzle horizontally fixed to the lower side wall of the tundish 1, 3, 3' is a pair of upper rolls provided at a distance in front of the nozzle 2, 4, 4' below the pair of upper rolls 3, 3', these rolls 3,
3', a pair of lower rolls facing each other with a slight gap between them; 5, an endless belt wound around the pair of upper rolls 3, 3'; and the pair of lower rolls 4, 4'; 6, an endless belt; A cooling box is used as a cooling means for cooling the endless belt 5, 7 is a cylinder for maintaining the tension of the endless belt 5 constant, 8 is a pinch roller, and 9 is a guide roller.
取鍋１０からタンデイツシユ１に注入された溶
鋼は、ノズル２から、上ロール３，３′および下
ロール４，４′により同方向に同期して移動して
いる上下の無端ベルト５の間に鋳込まれる。無端
ベルト５間に鋳込まれた溶鋼は直ちに冷却されて
未凝固鋳片１２が形成される。この未凝固鋳片１
２は、無端ベルト５により挾まれながら無端ベル
ト５と同期して水平に引抜れ、最終的に薄肉鋳片
が鋳造される。 The molten steel injected into the tundish 1 from the ladle 10 is cast between the upper and lower endless belts 5 which are moved synchronously in the same direction by upper rolls 3, 3' and lower rolls 4, 4' from the nozzle 2. be included. The molten steel poured between the endless belts 5 is immediately cooled to form unsolidified slabs 12. This unsolidified slab 1
2 is pulled out horizontally in synchronization with the endless belt 5 while being held therebetween, and a thin slab is finally cast.
上述した水平連続鋳造装置において、無端ベル
ト５により移動される未凝固鋳片１２の両側面
は、無端ベルトの両側に、支持冷却部材として、
左右一対の巾狭の無端ベルト（図示せず）を設置
し、これにより未凝固鋳片１２の両側面の支持お
よび冷却を行なつている。 In the horizontal continuous casting apparatus described above, both sides of the unsolidified slab 12 moved by the endless belt 5 are provided with supporting cooling members on both sides of the endless belt.
A pair of left and right narrow endless belts (not shown) are installed to support and cool both sides of the unsolidified slab 12.
しかし、肉厚50mm以下の未凝固鋳片を鋳造する
場合には、その両側面を支持および冷却するため
の左右無端ベルトの巾も狭いものとなるので、左
右無端ベルトを冷却効果の優れた構造のものとす
ることは困難である。このために、ノズル２を出
た直後の未凝固鋳片１２の両側面の凝固シエルの
肉厚が充分に厚く形成されなかつたり、あるい
は、左右無端ベルトと未凝固鋳片１２とが焼付
き、ブレークアウトの原因となつていた。 However, when casting an unsolidified slab with a wall thickness of 50 mm or less, the width of the left and right endless belts for supporting and cooling both sides of the slab is also narrow, so the left and right endless belts are designed to have an excellent cooling effect. It is difficult to make it the same. For this reason, the wall thickness of the solidified shells on both sides of the unsolidified slab 12 immediately after exiting the nozzle 2 may not be formed sufficiently thick, or the left and right endless belts and the unsolidified slab 12 may seize. It was causing a breakout.
この発明は、上述のような観点から、未凝固鋳
片の両側面を充分に冷却し得、しかも、凝固シエ
ルの焼付きが起らない左右一対の支持冷却部材を
有する、薄肉鋳片の水平連続鋳造装置を提供する
ものであつて、
タンデイツシユの側壁下部に水平に固定された
ノズルの前方に間隔をあけて設けられた一対の上
ロールと、前記一対の上ロールの下方に、これら
のロールと若干の間隔をあけて対向して設けられ
た一対の下ロールと、前記一対の上ロールおよび
一対の下ロールにそれぞれ周回された上下一対の
無端ベルトと、前記無端ベルトを冷却するための
冷却手段と、前記上下一対の無端ベルトの両側に
固定された、未凝固鋳片の両側面を支持および冷
却する、左右一対の支持冷却部材とを有してな
る、薄肉鋳片の水平連続鋳造装置において、
前記左右一対の支持冷却部材を、その内部に冷
却水用通路が形成され、その未凝固鋳片と接触す
る側の内面に自己潤滑性を有する焼付防止板が貼
付けられたもので構成し、前記支持冷却部材の
各々には、振動発生装置が取付けられていること
に特徴を有する。 From the above-mentioned viewpoints, the present invention provides a horizontal method for thin-walled slabs that has a pair of left and right support cooling members that can sufficiently cool both sides of the unsolidified slab and prevent seizure of the solidified shell. The continuous casting apparatus is provided with a pair of upper rolls provided at a distance in front of a nozzle horizontally fixed to the lower side wall of a tundish, and a pair of upper rolls disposed below the pair of upper rolls. a pair of lower rolls facing each other with a slight interval between them; a pair of upper and lower endless belts respectively wound around the pair of upper rolls and the pair of lower rolls; and a cooling device for cooling the endless belt. and a pair of left and right support cooling members fixed to both sides of the pair of upper and lower endless belts and supporting and cooling both sides of the unsolidified slab. In the above, the pair of left and right supporting cooling members are formed with a cooling water passage formed inside thereof, and a self-lubricating anti-seizure plate is attached to the inner surface of the side that comes into contact with the unsolidified slab. , a vibration generator is attached to each of the support cooling members.
この発明の一態様を図面を参照しながら説明す
る。 One embodiment of the present invention will be described with reference to the drawings.
第２図は、この発明の一態様の要部正面図、第
３図は、第２図のＡ矢視図である。 FIG. 2 is a front view of essential parts of one embodiment of the present invention, and FIG. 3 is a view taken in the direction of arrow A in FIG.
第２図および第３図に示されるように、この発
明の水平連続鋳造装置は、未凝固鋳片の両側面を
支持および冷却する左右一対の支持冷却部材１１
を、その内部に冷却水用通路１３が形成され、未
凝固鋳片１２と接触する側の内面に自己潤滑性を
有する焼付防止板１４が貼付けられたもので構成
し、支持冷却部材の各々には、振動発生装置１８
が取付けられている点以外は、前述した従来の水
平連続鋳造装置と同様の構造である。 As shown in FIGS. 2 and 3, the horizontal continuous casting apparatus of the present invention includes a pair of left and right support cooling members 11 that support and cool both sides of an unsolidified slab.
A cooling water passage 13 is formed inside the cooling water passage 13, and an anti-seizure plate 14 having self-lubricating properties is attached to the inner surface of the side that comes into contact with the unsolidified slab 12. is the vibration generator 18
It has the same structure as the conventional horizontal continuous casting apparatus described above, except that it is equipped with a.
支持冷却部材１１は、内部に冷却水用通路１３
が形成されていて、給水口１５ａからの冷却水を
通路１３を通して排水口１５ｂから排出できるよ
うになつている。これにより支持冷却部材１１の
温度上昇を防止している。 The support cooling member 11 has a cooling water passage 13 inside.
is formed so that cooling water from the water supply port 15a can be discharged from the drain port 15b through the passage 13. This prevents the temperature of the support cooling member 11 from rising.
支持冷却部材１１の内面に貼付けた焼付防止板
１４は、グラフアイト、二硫化モリブデン、ボロ
ンナイトライド等を共析させた高融点金属、所謂
サーメツト系材料製の厚さ10mm以下の薄肉板で構
成されていて、高融点金属と共析剤との併用効果
により凝固シエルの焼付き防止機能および自己潤
滑機能の両方を備えている。 The anti-seizure plate 14 attached to the inner surface of the support cooling member 11 is composed of a thin plate with a thickness of 10 mm or less made of a so-called cermet-based material, which is a high melting point metal eutectoided with graphite, molybdenum disulfide, boron nitride, etc. The solidified shell has both an anti-seizure function and a self-lubricating function due to the combined effect of a high melting point metal and a eutectoid.
支持冷却部材１１は、押え板１６を介して保持
装置１７により所定間隔で未凝固鋳片１２の両側
面を支持し、未凝固鋳片１２の巾寸法に応じて支
持冷却部材１１の間隔を自在に調整し得るように
なつている。 The support cooling member 11 supports both sides of the unsolidified slab 12 at a predetermined interval by a holding device 17 via a presser plate 16, and the interval between the supporting cooling member 11 can be freely adjusted according to the width dimension of the unsolidified slab 12. It is now possible to adjust the
振動発生装置１８は、支持冷却部材１１に機械
的または電気的に未凝固鋳片１２の板厚方向に振
巾１mm以下、周波数10Hz以上の高速微振動を付与
するものである。 The vibration generator 18 mechanically or electrically applies high-speed micro-vibration to the support cooling member 11 in the thickness direction of the unsolidified slab 12 with an amplitude of 1 mm or less and a frequency of 10 Hz or more.
ノズル２から上下無端ベルト５間に鋳込まれた
溶鋼は、上下無端ベルト５によりその上下面が冷
却されるとともに左右支持冷却部材１１により両
側面が冷却されて未凝固鋳片１２となる。 The molten steel poured from the nozzle 2 between the upper and lower endless belts 5 is cooled on its upper and lower surfaces by the upper and lower endless belts 5, and is cooled on both sides by the left and right supporting cooling members 11 to become an unsolidified slab 12.
このようにして鋳造された未凝固鋳片１２は、
上下無端ベルト５と同期してノズル２から連続的
に引抜れる。この際、支持冷却部材１１の焼付防
止板１４と直接接触する溶鋼および未凝固鋳片１
２は、焼付防止板１４の有する自己潤滑機能およ
び振動発生装置１８による焼付防止板１４の微振
動効果により、円滑に焼付防止板１４と滑る。従
つて、焼付き現象は生じないのでブレークアウト
は起らない。 The unsolidified slab 12 cast in this way is
It is continuously pulled out from the nozzle 2 in synchronization with the upper and lower endless belts 5. At this time, the molten steel and unsolidified slab 1 are in direct contact with the anti-seizure plate 14 of the support cooling member 11.
2 smoothly slides on the anti-seize plate 14 due to the self-lubricating function of the anti-seize plate 14 and the slight vibration effect of the anti-seize plate 14 by the vibration generator 18. Therefore, no breakout occurs because no burn-in phenomenon occurs.
支持冷却部材１１は、ノズル２の出側近傍に設
けるだけで、未凝固鋳片１２の両側面に充分な厚
さの凝固シエルが形成される。 By simply providing the supporting cooling member 11 near the exit side of the nozzle 2, a sufficiently thick solidified shell is formed on both sides of the unsolidified slab 12.
以上説明したように、この発明によれば、ノズ
ルを出た直後の未凝固鋳片の両側面の凝固シエル
の肉厚を簡単な構造により充分に厚く形成でき、
しかも、凝固シエルの焼付きを完全に防止するこ
とができるので、ブレークアウトの発生を未然に
防止することができるという有用な効果をもたら
される。 As explained above, according to the present invention, the thickness of the solidified shell on both sides of the unsolidified slab immediately after exiting the nozzle can be formed sufficiently thick with a simple structure.
Moreover, since seizure of the solidified shell can be completely prevented, the useful effect of preventing breakout from occurring is brought about.
第１図は、従来の水平連続鋳造装置の概略正面
図、第２図は、この発明の一態様の概略要部正面
図、第３図は、第２図のＡ矢視図である。図面に
おいて、
１……タンデイツシユ、２……ノズル、３，
３′……上ロール、４，４′……下ロール、５……
無端ベルト、６……冷却箱、７……シリンダ、８
……ピンチローラ、９……ガイドローラ、１０…
…取鍋、１１……支持冷却部材、１２……未凝固
鋳片、１３……冷却水用通路、１４……焼付防止
板、１５ａ……給水口、１５ｂ……排水口、１６
……押え板、１７……保持装置、１８……振動発
生装置。
FIG. 1 is a schematic front view of a conventional horizontal continuous casting apparatus, FIG. 2 is a schematic front view of essential parts of an embodiment of the present invention, and FIG. 3 is a view taken in the direction of arrow A in FIG. In the drawings, 1... Tundishyu, 2... Nozzle, 3,
3'...Top roll, 4,4'...Bottom roll, 5...
Endless belt, 6...Cooling box, 7...Cylinder, 8
...Pinch roller, 9...Guide roller, 10...
... Ladle, 11 ... Support cooling member, 12 ... Unsolidified slab, 13 ... Cooling water passage, 14 ... Anti-seizure plate, 15a ... Water supply port, 15b ... Drain port, 16
... Pressing plate, 17 ... Holding device, 18 ... Vibration generator.
Claims (1)
たノズルの前方に間隔をあけて設けられた一対の
上ロールと、前記一対の上ロールの下方に、これ
らのロールと若干の間隔をあけて対向して設けら
れた一対の下ロールと、前記一対の上ロールおよ
び一対の下ロールにそれぞれ周回された上下一対
の無端ベルトと、前記無端ベルトを冷却するため
の冷却手段と、前記上下一対の無端ベルトの両側
に固定された、未凝固鋳片の両側面を支持および
冷却する、左右一対の支持冷却部材とを有してな
る、薄肉鋳片の水平連続鋳造装置において、 前記左右一対の支持冷却部材を、その内部に冷
却水用通路が形成され、その未凝固鋳片と接触す
る側の内面に自己潤滑性を有する焼付防止板が貼
付けられたもので構成し、前記支持冷却部材の
各々には、振動発生装置が取付けられていること
を特徴とする、薄肉鋳片の水平連続鋳造装置。[Scope of Claims] 1. A pair of upper rolls provided at a distance in front of a nozzle horizontally fixed to the lower side wall of the tundish, and a pair of upper rolls provided below the pair of upper rolls with a slight distance from these rolls. a pair of lower rolls facing each other with a gap between them; a pair of upper and lower endless belts respectively wound around the pair of upper rolls and the pair of lower rolls; a cooling means for cooling the endless belt; A horizontal continuous casting device for thin-walled slabs, which comprises a pair of left and right support cooling members fixed to both sides of a pair of upper and lower endless belts and supporting and cooling both sides of an unsolidified slab. A pair of supporting and cooling members are each formed with a cooling water passage formed therein, and an anti-seizure plate having self-lubricating properties is attached to the inner surface of the supporting cooling member on the side that contacts the unsolidified slab. 1. A horizontal continuous casting device for thin-walled cast slabs, characterized in that a vibration generator is attached to each member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2702083A JPS59153553A (en) | 1983-02-22 | 1983-02-22 | Horizontal continuous casting equipment of thin walled billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2702083A JPS59153553A (en) | 1983-02-22 | 1983-02-22 | Horizontal continuous casting equipment of thin walled billet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59153553A JPS59153553A (en) | 1984-09-01 |
| JPS6241832B2 true JPS6241832B2 (en) | 1987-09-04 |
Family
ID=12209403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2702083A Granted JPS59153553A (en) | 1983-02-22 | 1983-02-22 | Horizontal continuous casting equipment of thin walled billet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59153553A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940008621B1 (en) * | 1985-06-27 | 1994-09-24 | 가와사키세이데쓰 가부시키가이샤 | Casting method & apparatus for endless strip |
| US11027330B2 (en) | 2016-08-10 | 2021-06-08 | Nucor Corporation | Method of thin strip casting |
-
1983
- 1983-02-22 JP JP2702083A patent/JPS59153553A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59153553A (en) | 1984-09-01 |
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