JPH0378171B2 - - Google Patents
Info
- Publication number
- JPH0378171B2 JPH0378171B2 JP58208292A JP20829283A JPH0378171B2 JP H0378171 B2 JPH0378171 B2 JP H0378171B2 JP 58208292 A JP58208292 A JP 58208292A JP 20829283 A JP20829283 A JP 20829283A JP H0378171 B2 JPH0378171 B2 JP H0378171B2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- guide plate
- cooling water
- rib
- 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.)
- Expired - Lifetime
Links
- 239000000498 cooling water Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 238000009749 continuous casting Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- B22D11/0677—Accessories therefor for guiding, supporting or tensioning the casting belts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】 〔本発明の技術分野〕 本発明は、双ベルト式連続鋳造機に関する。[Detailed description of the invention] [Technical field of the present invention] The present invention relates to a twin-belt continuous casting machine.
従来のベルト式連続鋳造機を、第１図に基づい
て説明すると、これは、鋳片１を鋳造する２本の
鋼製ベルト２，２、該ベルト２，２を掛けて駆動
するプーリ３、タンデイツシユ４から溶鋼１ａを
ベルト２，２間に供給するノズル５、該ベルト
２，２をその背面から冷却し、結果的に鋳片１を
冷却するための冷却水の流路を有する冷却箱６よ
りなる。また、この冷却箱６には、ガイド板７が
配設されており、ベルト２とこのガイド板７との
間隙に冷却水が矢印のように流れて、ベルト２を
冷却するように構成されている。なお、第１図中
１ｂは凝固殻であり、１ｃは溶鋼１ａの湯面であ
る。
A conventional belt-type continuous casting machine will be explained based on FIG. 1. It consists of two steel belts 2, 2 for casting a slab 1, a pulley 3 that is driven by the belts 2, 2, and a nozzle 5 for supplying molten steel 1a from the tundish 4 between the belts 2, 2; a cooling box 6 having a cooling water flow path for cooling the belts 2, 2 from the back side thereof and, as a result, cooling the slab 1; It becomes more. Further, a guide plate 7 is disposed in the cooling box 6, and the cooling water is configured to flow in the gap between the belt 2 and the guide plate 7 in the direction of an arrow to cool the belt 2. There is. In addition, in FIG. 1, 1b is a solidified shell, and 1c is the surface of the molten steel 1a.
従来の上記ベルト式連続鋳造機では、ベルト
２，２のたわみにより湯面１ｃが変動し、その結
果、鋳片１の表面が荒れる欠点を有している。こ
の従来装置の欠点を第２図〜第５図に基づいて詳
細に説明する。第２図は、ベルト２にはさまれて
いる鋳片１のみを図示したものである。第２図に
おいて、鋳片１の凝固殻１ｂは、溶鋼１ａの静圧
Psとベルト２を介して冷却水圧Pwを受けてお
り、これらの圧力と凝固殻１ｂ自身の剛性により
形状を保つている。
The conventional belt-type continuous casting machine described above has the disadvantage that the molten metal level 1c fluctuates due to the deflection of the belts 2, 2, and as a result, the surface of the slab 1 becomes rough. The drawbacks of this conventional device will be explained in detail with reference to FIGS. 2 to 5. FIG. 2 shows only the slab 1 sandwiched between the belts 2. As shown in FIG. In Fig. 2, the solidified shell 1b of the slab 1 is exposed to the static pressure of the molten steel 1a.
It receives cooling water pressure Pw via Ps and the belt 2, and its shape is maintained by these pressures and the rigidity of the solidified shell 1b itself.
ところが、冷却水圧Pwは、冷却水を送るポン
プ（図示せず）の特性、配管系統等のために脈動
するが、この冷却水圧Pwの脈動により、ベルト
２がたわむ。すなわち、凝固殻１ｂがたわむ。こ
れらの現象を模式的に示したのが第３図である。
第３図において、ベルト２がδだけたわむと、す
なわち凝固殻１ｂがδだけたわむと、凝固殻１ｂ
で囲われている容積が変動し、その結果湯面１ｃ
がｈだけ変動する。 However, the cooling water pressure Pw pulsates due to the characteristics of a pump (not shown) that sends the cooling water, the piping system, etc., and the belt 2 bends due to the pulsation of the cooling water pressure Pw. That is, the solidified shell 1b is bent. FIG. 3 schematically shows these phenomena.
In FIG. 3, when the belt 2 is deflected by δ, that is, when the solidified shell 1b is deflected by δ, the solidified shell 1b
The volume surrounded by changes, and as a result, the hot water level 1c
changes by h.
ベルトのたわみδ湯面と１ｃの変動ｈとの関係
は、
ｈ＝ｋ・δ
で表わされ、たわみδを生じるｋの値は、ベルト
２の範囲にもよるが、10から30程度になる。すな
わち、ベルトが0.5mmたわむと湯面１ｃは５〜15
mm変動することになり、また、この変動速度は早
い。急激に湯面１ｃが変動することは、鋳片１の
表面に湯じわ、二重肌等の欠陥を生ぜしめること
になり、特に薄い鋳片１を得ようとする場合は致
命的な欠陥となる。この現象を模式的に示したの
が第４図であり、また、ベルトのたわみを計測し
た結果が第５図である。第４図において、１ｄ
は、湯面１ｃの急激な変動により生じた二重肌を
表わしており、また、第５図に示すデータから明
らかなようにベルトのたわみの変動が非常に早い
ものである。 The relationship between the belt deflection δ and the fluctuation h of 1c is expressed as h=k・δ, and the value of k that causes the deflection δ is about 10 to 30, depending on the range of belt 2. . In other words, if the belt bends by 0.5 mm, the hot water level 1c will be 5 to 15
It will fluctuate by mm, and the speed of this fluctuation is fast. A sudden change in the melt level 1c will cause defects such as wrinkles and double skin on the surface of the slab 1, which is a fatal defect especially when trying to obtain a thin slab 1. becomes. FIG. 4 schematically shows this phenomenon, and FIG. 5 shows the results of measuring the deflection of the belt. In Figure 4, 1d
represents a double skin caused by rapid fluctuations in the hot water level 1c, and as is clear from the data shown in FIG. 5, the belt deflection fluctuates very quickly.
以上詳記したように、従来のベルト式連続鋳造
機では、ベルトのたわみが生じ、しかもこのたわ
みの変動は早く、通常の湯面制御方法では追従で
きず、どうしても湯面１ｃが急激に変動してしま
う欠点を有している。 As detailed above, in conventional belt-type continuous casting machines, belt deflection occurs, and this deflection fluctuates so quickly that it cannot be followed by normal melt level control methods, and the melt level 1c inevitably fluctuates rapidly. It has the disadvantage of being
そこで、本発明は、上記の欠点を解消し、冷却
水圧の脈動が生じても、ベルトがたわむことのな
い双ベルト式連続鋳造機を提供しようとするもの
である。
SUMMARY OF THE INVENTION Therefore, the present invention aims to solve the above-mentioned drawbacks and provide a twin-belt continuous casting machine in which the belt does not bend even when the cooling water pressure pulsates.
そして、本発明は、上記目的を達成する手段と
して、ベルトを冷却するための通路を形成するガ
イド板、リブを磁石で構成する点にある。すなわ
ち、本発明は、製造する鋳片の板厚に相当する間
〓を保持して走行する２枚の鋼製のベルトの背面
に冷却箱を備えた双ベルト式連続鋳造機におい
て、上記冷却箱内に上記ベルトに対向してガイド
板を配置し、上記ベルトの走行方向に対して該ガ
イド板の前後に冷却水の排出用並びに供給用の間
〓を設けてベルトとガイド板との間〓にベルトの
走行方向と逆向きの冷却水の流れを確保し、上記
ベルトの走行方向に長く、ベルト背面に接するリ
ブを上記ガイド表面に突設し、かつ、上記ガイド
板および／またはリブを磁石で構成したことを特
徴とする双ベルト式連続鋳造機である。
As a means for achieving the above object, the present invention resides in that the guide plate and ribs that form the passage for cooling the belt are made of magnets. That is, the present invention provides a twin-belt continuous casting machine equipped with a cooling box on the back side of two steel belts that run while maintaining a distance corresponding to the thickness of the slab to be manufactured. A guide plate is disposed inside the belt facing the belt, and spaces for discharging and supplying cooling water are provided in front and behind the guide plate with respect to the running direction of the belt, so that gaps between the belt and the guide plate are provided. to ensure a flow of cooling water in the opposite direction to the running direction of the belt, a rib that is long in the running direction of the belt and in contact with the back surface of the belt protrudes from the guide surface, and the guide plate and/or the rib is attached to a magnet. This is a twin-belt continuous casting machine characterized by the following:
以下、第６図及び第７図に基づいて本発明を詳
細に説明する。第６図は、本発明の実施例に係る
ベルト冷却装置の縦断面図であり、第７図は第６
図のＡ−Ａ線断面図である。第６図及び第７図に
おいて、６はベルト２を冷却するための冷却箱で
あり、この冷却箱６内には、ガイド板７、このガ
イド板７に取付けたリブ８及びベルト２により冷
却水の通路が形成されている。そして、この通路
内を第６図の矢印方向に冷却水が流れているもの
である。本発明では、このリブ８および／または
ガイド板７を磁石とし、ベルト２を常にリブ８に
接触させることによりベルト２のたわみをなくし
て湯面１ｃの位置を一定にするようにしたもので
ある。すなわち、本発明では、冷却箱６のガイド
板７に、リブ８を設け、このリブ８および／また
はガイド板７は磁石で製造されている。この磁石
により、ベルト２は常にガイド板７の方向に吸引
され、リブ８と接する。したがつて、冷却水圧
Pwの脈動があつても、磁石の吸引力を強くする
ことにより、ベルト２はたわむことなく、ベルト
２とベルト２との間隔は常に一定に保持される。
これにより、湯面１ｃの急激な変動は発生せず、
表面に湯じわ、二重肌等の欠陥のない良好な鋳片
が得られる。 Hereinafter, the present invention will be explained in detail based on FIGS. 6 and 7. FIG. 6 is a longitudinal cross-sectional view of a belt cooling device according to an embodiment of the present invention, and FIG.
It is a sectional view taken along the line AA in the figure. In FIGS. 6 and 7, 6 is a cooling box for cooling the belt 2. Inside this cooling box 6, a guide plate 7, a rib 8 attached to this guide plate 7, and a cooling water are provided by the belt 2. A passageway has been formed. Cooling water flows within this passage in the direction of the arrow in FIG. In the present invention, the ribs 8 and/or the guide plate 7 are made of magnets, and the belt 2 is kept in constant contact with the ribs 8, thereby eliminating deflection of the belt 2 and keeping the position of the hot water level 1c constant. . That is, in the present invention, a rib 8 is provided on the guide plate 7 of the cooling box 6, and the rib 8 and/or the guide plate 7 are made of a magnet. Due to this magnet, the belt 2 is always attracted toward the guide plate 7 and comes into contact with the rib 8. Therefore, the cooling water pressure
Even when Pw pulsates, the belt 2 does not bend by increasing the attraction force of the magnet, and the distance between the belts 2 is always maintained constant.
As a result, sudden fluctuations in the hot water level 1c do not occur,
Good slabs with no defects such as hot water wrinkles or double skin on the surface can be obtained.
本発明において、リブ８あるいはガイド板７は
上記説明の如く磁石で作つてもよく、一部磁石を
埋め込んだり、付加したりしてもよく、また、電
磁石を形成させON−OFFを可能とし、かつ吸引
力を調節できるようにすることもできるものであ
る。また、本発明において、磁石としては、フエ
ライト磁石あるいは希土類磁石等が好ましいもの
である。 In the present invention, the rib 8 or the guide plate 7 may be made of a magnet as described above, or a magnet may be partially embedded or added, or an electromagnet may be formed to enable ON/OFF operation. Moreover, the suction force can also be adjusted. In the present invention, the magnet is preferably a ferrite magnet, a rare earth magnet, or the like.
本発明は、以上詳記したように、ガイド板、こ
のガイド板に取付けたリブを磁石としたものであ
るから、鋼製ベルトは常にガイド板の方向に吸引
され、このガイド板に取付けられているリブに常
に接しているものである。したがつて、冷却水圧
の脈動が生じても、ベルトはたわむことがなく、
このため湯面の変動が発生することがない。その
結果、表面に湯じわ、二重肌等の欠陥のない良好
な鋳片が得られる効果が生ずるものである。
As described in detail above, the present invention uses a guide plate and a rib attached to this guide plate as magnets, so that the steel belt is always attracted in the direction of the guide plate and is attached to this guide plate. It is always in contact with the existing rib. Therefore, even if the cooling water pressure pulsates, the belt will not bend.
Therefore, fluctuations in the hot water level do not occur. As a result, a good slab without defects such as hot water wrinkles and double skin can be obtained on the surface.
第１図は、従来のベルト式連続鋳造機の縦断面
図であり、第２〜５図は従来の装置の欠点を説明
するための図であつて、この内第２図はベルトに
はさまれている鋳片のみを図示したものであり、
第３図はベルトのたわみと湯面の変動とを説明す
るための図であり、第４図は二重肌の鋳片表面を
説明するための図であり、第５図は、ベルトのた
わみと時間との関係図である。第６図は本発明の
実施例に係るベルト冷却装置の縦断面図であり、
第７図は第６図Ａ−Ａ線断面図である。
１……鋳片、１ａ……溶鋼、１ｂ……凝固殻、
１ｃ……湯面、１ｄ……二重肌、２……鋼製ベル
ト、３……プーリ、４……タンデイツシユ、５…
…ノズル、６……冷却箱、７……ガイド板、８…
…リブ、Ps……溶鋼の静圧、Pw……冷却水圧、
δ……ベルトのたわみ、ｈ……湯面の変動値。
Figure 1 is a longitudinal sectional view of a conventional belt-type continuous casting machine, and Figures 2 to 5 are diagrams for explaining the drawbacks of the conventional equipment. The figure shows only the slabs that are
Fig. 3 is a diagram for explaining the deflection of the belt and fluctuations in the melt level, Fig. 4 is a diagram for explaining the double-skinned slab surface, and Fig. 5 is a diagram for explaining the deflection of the belt and the fluctuation of the melt level. It is a relationship diagram between and time. FIG. 6 is a longitudinal sectional view of a belt cooling device according to an embodiment of the present invention,
FIG. 7 is a sectional view taken along the line A--A in FIG. 6. 1... Slab, 1a... Molten steel, 1b... Solidified shell,
1c...Hot water surface, 1d...Double skin, 2...Steel belt, 3...Pulley, 4...Tandaitsu, 5...
...Nozzle, 6...Cooling box, 7...Guide plate, 8...
...rib, Ps...static pressure of molten steel, Pw...cooling water pressure,
δ...Deflection of the belt, h... Fluctuation value of the hot water level.
Claims (1)
て走行する２枚の鋼製のベルトの背面に冷却箱を
備えた双ベルト式連続鋳造機において、上記冷却
箱内に上記ベルトに対向してガイド板を配置し、
上記ベルトの走行方向に対して該ガイド板の前後
に冷却水の排出用並びに供給用の間〓を設けてベ
ルトとガイド板との間〓にベルトの走行方向と逆
向きの冷却水の流れを確保し、上記ベルトの走行
方向に長く、ベルト背面に接するリブを上記ガイ
ド表面に突設し、かつ、上記ガイド板および／ま
たはリブを磁石で構成したことを特徴とする双ベ
ルト式連続鋳造機。1. In a twin-belt continuous casting machine equipped with a cooling box on the back of two steel belts that run while maintaining a distance corresponding to the thickness of the slab to be produced, the belt is placed in the cooling box. Place guide plates facing each other,
A gap for discharging and supplying cooling water is provided before and after the guide plate with respect to the running direction of the belt, so that the flow of cooling water in the opposite direction to the running direction of the belt is provided between the belt and the guide plate. A double-belt continuous casting machine, characterized in that a rib is provided on the guide surface and is long in the running direction of the belt and in contact with the back surface of the belt, and the guide plate and/or the rib is made of a magnet. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20829283A JPS60102255A (en) | 1983-11-08 | 1983-11-08 | Belt cooler in belt type continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20829283A JPS60102255A (en) | 1983-11-08 | 1983-11-08 | Belt cooler in belt type continuous casting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60102255A JPS60102255A (en) | 1985-06-06 |
| JPH0378171B2 true JPH0378171B2 (en) | 1991-12-12 |
Family
ID=16553835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20829283A Granted JPS60102255A (en) | 1983-11-08 | 1983-11-08 | Belt cooler in belt type continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60102255A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53108829A (en) * | 1977-03-04 | 1978-09-22 | Larex Ag | Method of cooling and guiding circulation type casting belt in metal strip continuous casting facility and cooling and guide apparatus |
-
1983
- 1983-11-08 JP JP20829283A patent/JPS60102255A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53108829A (en) * | 1977-03-04 | 1978-09-22 | Larex Ag | Method of cooling and guiding circulation type casting belt in metal strip continuous casting facility and cooling and guide apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60102255A (en) | 1985-06-06 |
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