JPH0530543B2 - - Google Patents
Info
- Publication number
- JPH0530543B2 JPH0530543B2 JP1505989A JP1505989A JPH0530543B2 JP H0530543 B2 JPH0530543 B2 JP H0530543B2 JP 1505989 A JP1505989 A JP 1505989A JP 1505989 A JP1505989 A JP 1505989A JP H0530543 B2 JPH0530543 B2 JP H0530543B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- casting
- molten steel
- tundish
- connecting member
- 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
- 239000002436 steel type Substances 0.000 claims description 40
- 229910000831 Steel Inorganic materials 0.000 claims description 38
- 239000010959 steel Substances 0.000 claims description 38
- 238000005266 casting Methods 0.000 claims description 34
- 238000005192 partition Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000009749 continuous casting Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000007654 immersion Methods 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013000 roll bending Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
Description
（産業上の利用分野）
本発明は、連結鋳造に際して成分の異なる鋼種
を連結して鋳造する異鋼種の連結鋳造法に関す
る。
（従来の技術）
連結鋳造法により、異鋼種連々鋳をする際、従
来技術としては特開昭62−134149号公報で示すよ
うに「タンデイツシユを交換してａモルド内に異
鋼種を連結鋳造する方法において溶鋼の鋳造を完
了し、モルド内に未凝固溶鋼が存在する状態にし
て、連結具を介して上下２枚の溶鋼仕切板を一体
に連結した溶鋼封入枠ｂを沈降せしめて、該下仕
切板を凝固シエルに当接するとともに、前記仕切
板から不活性ガスを吸込みつつ、該溶鋼封入枠内
に浸漬ノズルを挿入して、異鋼種の初期溶鋼を封
入した後に、通常の浸漬鋳造を行うことを特徴と
する異鋼種の連結鋳造方法」が一般的である。
（発明が解決しようとする課題）
上記のような従来技術の課題としては、
(1) 上記下線部ｂの溶鋼封入枠は鉄製で、鋳型内
部の溶鋼に対して簡単に溶けないように５〜10
mm厚鉄板を用いている。そのため、鋳造幅0.8
〜2.5ｍでのスラブ鋳造では溶鋼封入枠は最大
30〜50Kgとなり重量物による厚みの少ない
（200〜300mm厚）鋳型内部への浸漬作業は、高
熱、高負荷作業であり安全上に問題が潜在して
いる。
(2) 通常、タンデイツシユと鋳型との取り合い
は、空間が少ないため溶鋼封入枠を人手、また
は機械で鋳型内部に浸漬するためには上記下線
部ａのようにタンデイツシユを交換することが
一般的である。タンデイツシユを交換して異鋼
種連々鋳する際2.5〜3.5分程度、鋳造速度０と
する状態が続くので高生産性連結鋳造設備では
通常１チヤージ（300ton程度）を30分程度で鋳
造するので約10％の生産能力減となる問題と、
(3) ロール帯が停止しているため、鋳片に接触し
ているロール部が高温化し熱応力によるロール
曲がりが発生してしまう。そのため異鋼種連々
鋳後の鋳造では、ロール曲がりによる鋳片に対
しての波打ち圧延状態となり、鋳型湯面変動が
著しく向上し、パウダーの巻込み等の品質トラ
ブルが生じる問題点もある。
(4) さらに、異鋼種連々鋳する際タンデイツシユ
交換をするので例えば、10種、全く成分の異な
るチヤージを異鋼種連々鋳する際タンデイツシ
ユは10個必要となり、タンデイツシユ耐火物原
単位は著しく劣化する。本発明は、10の異鋼種
の連々鋳造操業にはタンデイツシユ１つで充分
であり、従来の異鋼種の連結鋳造法に比し操業
時間を短縮し、かつ操業能率の向上を図ること
を目的としたものである。
（課題を解決するための手段）
本発明は、従来技術の課題を有利に解決するも
のであつて、異鋼種仕切用のＶ字型に形成した仕
切板１に連結部材２を垂直に固定し、該連結部材
２をタンデイツシユ底部１２に回動可能に設けた
取付け治具１１に着脱自在に吊下げ、タンデイツ
シユ１７の下方に設けた鋳型１６に前溶鋼を注入
するときは、前記仕切板１を鋳型１６より退避せ
しめて注入し、前溶鋼が注入完了し未凝固時に前
記仕切板１を鋳型１６上に位置せしめて前溶鋼鋳
型内湯面１４上に降下し、仕切板１と連結部材２
よりなる異鋼種連々鋳用連結部材１０を自重によ
り自動的に取付け治具１１より離脱せしめて鋳型
１６内に浸漬し前溶鋼とは異なる後溶鋼を鋳型１
６に仕切板１を介して注入し、異鋼種の溶鋼を連
続的に鋳造することを特徴とする異鋼種の連結鋳
造法である。
（作用）
本発明はタンデイツシユ１７を介して鋳型１６
内に異鋼種を連結鋳造する方法において、前チヤ
ージの前溶鋼を注入し鋳造を完了し、鋳型１６内
に未凝固溶鋼が存在する状態で、かつ上記タンデ
イツシユ１７が浸漬鋳造位置にある際、タンデイ
ツシユ底部１２に設けた取付け治具１１を介し
て、Ｖ字型溶鋼仕切板１を一体に連結した異鋼種
連々鋳用連結部材１０を、鋳型上部１５の脇に鋳
型内湯面１４に対して斜めに退避せしめ、該連結
部材１０の上部は、タンデイツシユ１７の下部に
固定されている該連結部材１０の取付け治具１１
を介してフツク８で吊下げられており、上記タン
デイツシユ１７が上昇する際、上記連結部材１０
は、その自重により鋳型内湯面１４に対してほぼ
垂直になるまで吊り下げられ、その後に上記タン
デイツシユ１７を下降せしめ、上記連結部材１０
を鋳型内湯面１４の未凝固域内に浸漬し、上記タ
ンデイツシユ１７が浸漬鋳造位置に復帰した際、
上記連結部材１０の取付け治具１１のフツク８か
ら上記連結部材１０を開放せしめ、その後、後チ
ヤージの後溶鋼を鋳型１６の内部に注入して異鋼
種の溶鋼を連結的に鋳造するものである。
本発明の異鋼種の連結鋳造操業を行うことに前
溶鋼をタンデイツシユ１７から鋳型１６に注入す
る際は、連結部材１０は鋳型１６より退避してお
り前溶鋼の注入を容易に行ない得られ、次に前溶
鋼とは異なる材質の後溶鋼を鋳型１６に注入する
ときは仕切板１を未凝固湯面上に浸漬するのに仕
切板１がＶ字型になつているので重心が中心部に
なり、水平状態で安定的に鋳型内湯面１４に浸漬
され、前溶鋼と後溶鋼とを確実に仕切ることがで
き、１つのタンデイツシユ１７で異鋼種を連々鋳
造することができる。
（実施例）
以下図面に基いて本発明を説明する。
第１図は本発明による一実施例を示す図であ
る。
１は鉄板をＶ字型に折り曲げた仕切板である。
２は仕切板１に対してほぼ垂直に連結されている
連結部材であつて２つ存在する。この連結部材２
の上部と仕切板１底部との長さＡは、浸漬鋳造中
で仕切板１が鋳型１６内に入つているのでタンデ
イツシユ底部１２と鋳型上部１５との距離より大
きく、又、タンデイツシユ１７の上昇限でのタン
デイツシユ底部１２と鋳型上部１５との距離より
小さくしている。さらに連結部材２の上部に棒状
部材３とフツク８で吊り下げるための吊り具４が
ある。棒状部材３は異鋼種連々鋳用連結部材１０
（仕切板１、連結部材２、棒状部材３及び吊り具
４の組合わせ）をタンデイツシユ底部１２に取り
付ける際、揺れないようにするための保持棒であ
る。吊り具４はフツク８で吊り下げるためであつ
て材質は異鋼種連々鋳用連結部材１０の自重を支
えれば何であつてもよい。５はタンデイツシユ下
部に取り付ける固定部材であ。６は固定部材５に
連結されていて±90°まで回動可能である支持部
材である。支持部材６の下部には、棒状部材３を
包んで保持する中空部材７と吊り具４を固定し、
かつ回動可能で吊り具４を取り外しできるフツク
８とを備えている。これらの固定部材５、支持部
材６、中空部材７およびフツク８を合わせて取付
け治具１１という。
第２図ａ，ｂ，ｃでは取付け治具１１の回動す
る機構について説明する。第２図ａは固定部材５
に連結されている支持部材６の回動範囲を点線部
で示している。第２図ｂは、吊り具４をフツク８
で吊り下げている状態から、支持軸９を介して吊
り具４を取り外す状態を点線部で示している。第
２図ｃは第２図ａの側面図である。
第３図は前チヤージの鋳造終了直前の状態図で
あつて、異鋼種連々鋳用連結部材１０がタンデイ
ツシユ底部１２に取り付けられた取付け治具１１
によつて斜めに鋳型内湯面１４の鋳型上部１５の
脇に敷設しておく。なお１３は浸漬ノズルであ
る。
なお第１図は前チヤージ終了後、タンデイツシ
ユが上昇し、異鋼種連々鋳用連結部材１０は、鋳
型上部１５の脇をスライドしながら鋳型内湯面１
４の上に、はぼ垂直になつた時を示す図である。
第４図ａ，ｂ，ｃ，ｄおよび第５図ａ，ｂ，
ｃ，ｄは異鋼種連々鋳用連結部材１０をタンデイ
ツシユ底部１２に取付けた取付け治具１１によつ
て鋳型１６の内部に挿入するまでを示すフロー図
である。
第５図ａは第３図と同等で、第５図ｂは第１図
と同等である。
第４図ｃと第５図ｃはタンデイツシユが下降し
て、異鋼種連々鋳用連結部材１０を鋳型湯面内部
に挿入している図である。第４図ｄと第５図ｄは
タンデイツシユ１７を下降したのち浸漬鋳造位置
となつて取付け具位１１のフツク８を開放して異
鋼種連々鋳用連結部材１０を切り離して後、後チ
ヤージの異鋼種の溶鋼を注入しているところの図
である。
（発明の効果）
本発明によつて従来技術の有していた欠点が以
下の様にして改善される。
(1) 本発明によつて、異鋼種連々鋳用連結部材を
鋳型内部に挿入する人手作業が回避できるし、
人手作業を回避するための設備投資も不要とな
る。
(2) 本発明によつてタンデイツシユ交換せずに、
同一タンデイツシユによる異鋼種連々鋳操業が
可能となるため、例えば10種の異鋼種連々鋳を
する場合、従来技術ではタンデイツシユ10個が
必要であるが、本発明ではタンデイツシユ１個
で充分であり、タンデイツシユ耐火物原単位の
大幅な削減が可能である。
(3) 本発明によつて異鋼種連々鋳の操業時間が、
従来３分以上かかつていたのを１分弱にするこ
とが可能となり、生産能力向上にも貢献でき
る。なお本発明と従来技術との異鋼種連々鋳の
操業時間の比較を下記の表に示す。
(Industrial Application Field) The present invention relates to a method for connected casting of different steel types in which steel types with different components are connected and cast during connected casting. (Prior art) When successively casting different steel types using the connected casting method, as shown in Japanese Patent Application Laid-Open No. 134149/1984, the conventional technology is to replace the tundish and connect the different steel types in mold a. After completing the casting of the molten steel in the method, and with unsolidified molten steel present in the mold, the molten steel enclosure frame b, in which two upper and lower molten steel partition plates are integrally connected via a connector, is allowed to settle, and the lower A partition plate is brought into contact with the solidification shell, and an immersion nozzle is inserted into the molten steel enclosing frame while inert gas is sucked through the partition plate to enclose initial molten steel of a different steel type, and then normal immersion casting is performed. "Connected casting method for different steel types" is common. (Problems to be Solved by the Invention) The problems of the prior art as described above are as follows: (1) The molten steel enclosure frame shown in the underlined part b is made of iron, and it is made of iron with a 5- to 5-metre seal to prevent it from easily melting into the molten steel inside the mold. Ten
mm thick iron plate is used. Therefore, the casting width is 0.8
For slab casting at ~2.5m, the maximum molten steel enclosure is possible.
Immersion work into the inside of a mold with a small thickness (200 to 300 mm thick) weighing 30 to 50 kg is high heat and high load work, which poses potential safety problems. (2) Normally, there is little space between the tundish and the mold, so in order to immerse the molten steel enclosure into the mold manually or mechanically, it is common to replace the tundish as shown in the underlined part a above. be. When replacing the tandate and casting different steel types successively, the casting speed remains at 0 for about 2.5 to 3.5 minutes, so in high-productivity connected casting equipment, one charge (about 300 tons) is usually cast in about 30 minutes, so it takes about 10 minutes. (3) Since the roll band is stopped, the temperature of the roll in contact with the slab increases, causing roll bending due to thermal stress. Therefore, in casting after successive casting of different steel types, roll bending causes the billet to be rolled in a corrugated state, resulting in significant mold level fluctuations and quality problems such as powder entrainment. (4) Furthermore, since tundishes are replaced when casting different steel types in succession, for example, when 10 types of charges with completely different compositions are successively cast in different steel types, 10 tundishes are required, and the tundish refractory unit consumption is significantly degraded. The purpose of the present invention is to shorten the operating time and improve operational efficiency, since a single tundish is sufficient for continuous casting of 10 different steel types, compared to the conventional continuous casting method for different steel types. This is what I did. (Means for Solving the Problems) The present invention advantageously solves the problems of the prior art by fixing a connecting member 2 vertically to a V-shaped partition plate 1 for partitioning different steel types. When the connecting member 2 is removably suspended from a mounting jig 11 rotatably provided on the tundish bottom 12 and pre-molten steel is poured into a mold 16 provided below the tundish 17, the partition plate 1 is The pre-molten steel is withdrawn from the mold 16 and poured, and when the pre-molten steel has been poured and is not solidified, the partition plate 1 is positioned above the mold 16 and the pre-molten steel is lowered onto the mold surface 14, and the partition plate 1 and the connecting member 2
The connecting member 10 for continuous casting of different steel types is automatically detached from the mounting jig 11 by its own weight and immersed in the mold 16, and the post-molten steel different from the pre-molten steel is poured into the mold 1.
This is a continuous casting method for different steel types, which is characterized in that molten steel of different steel types is continuously cast by injecting molten steel into 6 through a partition plate 1. (Function) The present invention provides the mold 16 through the tundish 17.
In the method of connecting and casting different steel types in a mold, when the pre-charge pre-molten steel is injected and casting is completed, unsolidified molten steel is present in the mold 16, and the tundish 17 is in the immersion casting position, the tundish is A connecting member 10 for continuous casting of different steel types, which integrally connects the V-shaped molten steel partition plate 1, is attached to the side of the mold upper part 15 diagonally with respect to the molten metal surface 14 in the mold via a mounting jig 11 provided on the bottom part 12. The upper part of the connecting member 10 is attached to a mounting jig 11 of the connecting member 10 which is fixed to the lower part of the tundish 17.
When the tundish 17 rises, the connecting member 10
is suspended by its own weight until it becomes almost perpendicular to the mold surface 14, and then the tundish 17 is lowered and the connecting member 10
is immersed in the unsolidified area of the mold surface 14, and when the tundish 17 returns to the immersion casting position,
The connecting member 10 is released from the hook 8 of the mounting jig 11 of the connecting member 10, and then, after post-charging, molten steel is injected into the mold 16, and molten steel of different steel types is cast in a connected manner. . When injecting pre-molten steel from the tundish 17 into the mold 16 in order to carry out the connected casting operation of different steel types according to the present invention, the connecting member 10 is retracted from the mold 16 so that the pre-molten steel can be easily poured and obtained. When pouring post-molten steel of a different material from the pre-molten steel into the mold 16, the partition plate 1 is immersed above the surface of the unsolidified molten metal, but since the partition plate 1 is V-shaped, the center of gravity is at the center. The molten steel is stably immersed in the molten metal surface 14 in the mold in a horizontal state, and the pre-molten steel and post-molten steel can be reliably separated, and different steel types can be successively cast in one tundish 17. (Example) The present invention will be described below based on the drawings. FIG. 1 is a diagram showing an embodiment according to the present invention. 1 is a partition plate made by bending an iron plate into a V shape.
Reference numeral 2 denotes a connecting member connected almost perpendicularly to the partition plate 1, and there are two connecting members. This connecting member 2
The length A between the top of the tundish and the bottom of the tundish plate 1 is longer than the distance between the tundish bottom 12 and the mold top 15 because the tundish plate 1 is placed inside the mold 16 during immersion casting. The distance between the tundish bottom part 12 and the mold upper part 15 is made smaller than that shown in FIG. Further, on the upper part of the connecting member 2, there is a hanging device 4 for hanging the rod-shaped member 3 and a hook 8. The rod-shaped member 3 is a connecting member 10 for continuous casting of different steel types.
This is a holding rod to prevent the (combination of the partition plate 1, connecting member 2, rod-shaped member 3, and hanger 4) from shaking when it is attached to the tundish bottom 12. The hanging tool 4 is used for hanging with a hook 8, and may be made of any material as long as it can support the weight of the connecting member 10 for continuous casting of different steels. 5 is a fixing member attached to the lower part of the tundish. A support member 6 is connected to the fixed member 5 and is rotatable up to ±90°. A hollow member 7 that wraps and holds the rod-shaped member 3 and a hanging tool 4 are fixed to the lower part of the support member 6.
It also has a hook 8 which is rotatable and allows the hanging tool 4 to be removed. These fixing member 5, support member 6, hollow member 7, and hook 8 are collectively referred to as a mounting jig 11. In FIGS. 2a, b, and c, a mechanism for rotating the mounting jig 11 will be explained. Figure 2 a shows the fixing member 5.
The rotation range of the support member 6 connected to is shown by the dotted line. Figure 2b shows the hanging device 4 attached to the hook 8.
The state in which the hanging tool 4 is removed via the support shaft 9 from the suspended state is shown by the dotted line. FIG. 2c is a side view of FIG. 2a. FIG. 3 is a state diagram immediately before the end of casting in the pre-charge, and shows the mounting jig 11 in which the connecting member 10 for successive casting of different steel types is attached to the tundish bottom 12.
It is laid diagonally beside the mold upper part 15 on the hot water surface 14 in the mold. Note that 13 is a submerged nozzle. In addition, in FIG. 1, after the pre-charging is completed, the tundish is raised, and the connecting member 10 for successive casting of different steel types slides on the side of the upper part 15 of the mold, increasing the molten metal level 1 in the mold.
4 is a diagram showing the state when the frame is almost perpendicular. Figure 4 a, b, c, d and Figure 5 a, b,
Figures c and d are flowcharts showing the steps up to inserting the connecting member 10 for successive casting of different steel types into the inside of the mold 16 using the mounting jig 11 attached to the tundish bottom 12. 5a is equivalent to FIG. 3, and FIG. 5b is equivalent to FIG. 1. FIGS. 4c and 5c are diagrams in which the tundish is lowered and the connecting members 10 for casting different steel types are inserted into the mold surface. 4d and 5d show that after the tundish 17 has been lowered, the tundish 17 has been lowered to the immersion casting position, the hook 8 of the mounting position 11 has been opened, and the connecting member 10 for successive casting of different steel types has been separated. It is a diagram showing that molten steel of the steel type is being injected. (Effects of the Invention) The present invention improves the drawbacks of the prior art in the following manner. (1) According to the present invention, the manual labor of inserting connecting members for casting of different steel types into the mold can be avoided,
There is also no need for capital investment to avoid manual labor. (2) According to the present invention, without replacing the tundish,
Since continuous casting of different steel types is possible using the same tundish, for example, when casting 10 different steel types in succession, 10 tundishes are required in the conventional technology, but in the present invention, one tundish is sufficient, and the tundish It is possible to significantly reduce the unit consumption of refractories. (3) With the present invention, the operating time for continuous casting of different steel types can be reduced.
It is now possible to reduce the time from over 3 minutes to just under 1 minute, contributing to improved production capacity. The table below shows a comparison of operating times for continuous casting of different steel types between the present invention and the prior art.
【表】【table】
第１図は、本発明による実施例を示す図であつ
てタンデイツシユが上昇したときの状態図、第２
図ａ，ｂ，ｃは本発明による取付け治具の回動状
態を示す説明図、第３図は本発明による実施例を
示す図であつて異鋼種連々鋳する前の状態図、第
４図ａ，ｂ，ｃ，ｄ及び第５図ａ，ｂ，ｃ，ｄは
本発明による異鋼種連々鋳操業を示すフロー図で
ある。
１……仕切板、２……連結部材、３……棒状部
材、４……吊り具、５……固定部材、６……支持
部材、７……中空部材、８……フツク、９……支
持軸、１０……異鋼種連々鋳用連結部材、１１…
…取付け治具、１２……タンデイツシユ底部、１
３……浸漬ノズル、１４……鋳型内湯面、１５…
…鋳型上部、１６……鋳型、１７……タンデイツ
シユ。
FIG. 1 is a diagram showing an embodiment according to the present invention, and is a state diagram when the tundish is raised;
Figures a, b, and c are explanatory diagrams showing the rotating state of the mounting jig according to the present invention, Figure 3 is a diagram showing an embodiment according to the present invention, and a state diagram before successive casting of different steel types, Figure 4 a, b, c, d and FIGS. 5 a, b, c, d are flow diagrams showing a continuous casting operation of different steel types according to the present invention. DESCRIPTION OF SYMBOLS 1... Partition plate, 2... Connecting member, 3... Rod-shaped member, 4... Hanging tool, 5... Fixing member, 6... Supporting member, 7... Hollow member, 8... Hook, 9... Support shaft, 10... Connecting member for continuous casting of different steel types, 11...
...Mounting jig, 12...Bottom of tundish, 1
3... Immersion nozzle, 14... Molten metal surface in the mold, 15...
...upper part of the mold, 16...mold, 17...tandake.
Claims (1)
結部材を垂直に固定し、該連結部材をタンデイツ
シユ底部に回動可能に設けた取付け治具に着脱自
在に吊下げ、タンデイツシユの下方に設けた鋳型
に前溶鋼を注入するときは、前記仕切板を鋳型よ
り退避せしめて注入し、前溶鋼が注入完了し、未
凝固時に前記仕切板を鋳型上に位置せしめて前溶
鋼鋳型内湯面上に降下し、仕切板と連結部材より
なる異鋼種連々鋳用連結部材を自重により自動的
に取付け治具より離脱せしめて鋳型内に浸漬し、
前溶鋼とは異なる後溶鋼を鋳型に仕切板を介して
注入し、異鋼種の溶鋼を連結的に鋳造することを
特徴とする異鋼種の連結鋳造法。1. A connecting member is fixed vertically to a V-shaped partition plate for separating different steel types, and the connecting member is removably suspended from a mounting jig that is rotatably provided at the bottom of the tundish. When injecting pre-molten steel into the mold, the partition plate is retracted from the mold and the injection is completed, and when the pre-molten steel has been poured and is not yet solidified, the partition plate is placed over the mold and the pre-molten steel is placed above the molten metal surface in the mold. The connecting member for casting different steel types, consisting of the partition plate and the connecting member, is automatically detached from the mounting jig by its own weight and immersed in the mold.
A connected casting method for different steel types, characterized by injecting post-molten steel, which is different from pre-molten steel, into a mold through a partition plate, and casting molten steel of different steel types in a connected manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1505989A JPH02197355A (en) | 1989-01-26 | 1989-01-26 | Method for continuously casting different steel kinds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1505989A JPH02197355A (en) | 1989-01-26 | 1989-01-26 | Method for continuously casting different steel kinds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02197355A JPH02197355A (en) | 1990-08-03 |
| JPH0530543B2 true JPH0530543B2 (en) | 1993-05-10 |
Family
ID=11878266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1505989A Granted JPH02197355A (en) | 1989-01-26 | 1989-01-26 | Method for continuously casting different steel kinds |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02197355A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100825611B1 (en) * | 2001-11-06 | 2008-04-25 | 주식회사 포스코 | An apparatus for charging mixed band into continuous casting machine |
| JP7172432B2 (en) * | 2018-10-19 | 2022-11-16 | 日本製鉄株式会社 | Partition plate for continuous casting of different steel grades and method for continuous casting of different steel grades |
-
1989
- 1989-01-26 JP JP1505989A patent/JPH02197355A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02197355A (en) | 1990-08-03 |
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