JPS63174764A - Method for preventing molten steel oxidation at casting start in continuous casting - Google Patents
Method for preventing molten steel oxidation at casting start in continuous castingInfo
- Publication number
- JPS63174764A JPS63174764A JP470587A JP470587A JPS63174764A JP S63174764 A JPS63174764 A JP S63174764A JP 470587 A JP470587 A JP 470587A JP 470587 A JP470587 A JP 470587A JP S63174764 A JPS63174764 A JP S63174764A
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- casting
- tundish
- nozzle
- sliding 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 54
- 239000010959 steel Substances 0.000 title claims abstract description 54
- 238000005266 casting Methods 0.000 title claims abstract description 28
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 16
- 230000003647 oxidation Effects 0.000 title claims abstract description 13
- 230000003405 preventing effect Effects 0.000 title claims abstract description 9
- 238000009749 continuous casting Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 13
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 abstract description 3
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 230000003247 decreasing effect 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
- 238000011835 investigation Methods 0.000 description 3
- 229910000655 Killed steel Inorganic materials 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RQMIWLMVTCKXAQ-UHFFFAOYSA-N [AlH3].[C] Chemical compound [AlH3].[C] RQMIWLMVTCKXAQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011822 basic refractory Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification 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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/118—Refining the metal by circulating the metal under, over or around weirs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は連続鋳造における鋳込み開始時の溶鋼酸化防止
方法に関し、鋼等の溶融金属の連続鋳造の分野で利用さ
れろ。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for preventing oxidation of molten steel at the start of pouring in continuous casting, and is applicable in the field of continuous casting of molten metals such as steel.
鋼の連続鋳造における鋳型への鋳造は、タンディツシュ
と呼ばれる中間容器を経由して行われるのが一般的であ
る。すなわち、第２図に示す如（溶鋼は取＃ｆｊ１２か
らロングノズル４を介してタンディツシュ６に注入され
、更にスライディングノズル８を介して鋳型１０に鋳込
まれる。タンディツシュ６を使用する目的は、多ストラ
ンド鋳造を可能にすると共に、取＃ａ２を何度も交換し
て溶鋼を受けることができろためである。Casting into a mold in continuous steel casting is generally performed via an intermediate container called a tandish. That is, as shown in FIG. This is because it enables strand casting and also allows the tray #a2 to be replaced many times to receive molten steel.
しかしながら、２次精錬を施した鋼をタンディツシュに
注入すると、介在物汚染を生ずる可能性がある。このタ
ンディツシュにおける汚染防止のため、タンディツシュ
内張耐火物は通常ＭｇＯ等の塩基性耐火物を使用する配
慮が払われている。However, if secondary refined steel is poured into a tundish, inclusion contamination may occur. In order to prevent contamination in the tundish, consideration is usually given to using a basic refractory such as MgO as the lining refractory for the tundish.
一方、注入中の取鍋とタンディツシュ間の再酸化防止の
ためロングノズル等の耐火物が一最に使用されている。On the other hand, refractories such as long nozzles are most often used to prevent re-oxidation between the ladle and the tundish during pouring.
これらの通常注入中の汚染防止のほかに、鋳込初期の再
酸化を防止する対策として特開昭５９−１０５５、特開
昭５９−２７７６０等が提案されている。特開昭５９−
１０５５では溶鋼の無酸化注入開始法としてタンディツ
シュ場面被覆剤から成る耐火ボードを用い、タンディツ
シュを上、下２室に区分し、下室に不活性ガスを供給し
て溶鋼の酸化を防止することが提案されている。この方
法はタンディツシュ内の予熱効果率が耐火物ボードの存
在によって低下する問題やボード使用によるコストアッ
プの問題があり、また、不十分な予熱によりタンディツ
シュのノズル詰り等を招き操業上のトラブルを招く危険
性がある。In addition to these measures to prevent contamination during normal pouring, measures to prevent re-oxidation at the initial stage of casting have been proposed in Japanese Patent Laid-Open Nos. 59-1055 and 1982-27760. Japanese Unexamined Patent Publication 1987-
In 1055, as a non-oxidizing injection initiation method for molten steel, a fireproof board made of a tundish surface coating agent is used, the tundish is divided into two chambers, an upper and a lower chamber, and an inert gas is supplied to the lower chamber to prevent oxidation of the molten steel. Proposed. This method has the problem that the preheating efficiency inside the tundish decreases due to the presence of the refractory board, and the cost increases due to the use of the board.In addition, insufficient preheating causes the nozzle of the tundish to become clogged, leading to operational troubles. There is a risk.
また、特開昭５９−２７７６０においてはタンディツシ
ュへの不活性ガスの供給制御法が開始され、タンディツ
シュ内の雰囲気中の０２濃度を検出し不活性ガス量を決
定するのであるが、雰囲気中の０２ｉ１１度を検出する
個所によって大きな制御上の差異を生じ、実用上多点に
わたって０２９度計を配して不活性ガスの供給をする必
要があり、高温雰囲気下での利用の点で濃度計自体の保
守の面と併せ実操業への適用に際し問題がある。Furthermore, in JP-A-59-27760, a method for controlling the supply of inert gas to the tundish was started, and the 02 concentration in the atmosphere inside the tundish was detected to determine the amount of inert gas. There is a large difference in control depending on the location where the concentration is detected, and in practice it is necessary to arrange the 029 degree meter at multiple points and supply inert gas. There are problems in terms of maintenance as well as in application to actual operations.
従来、鋳込み初期の再酸化を防止するため、タンディツ
シュ内にＡ「ガスを導入してタンディツシュ内の０％を
低下する方法が採られているが、十分な効果があがらず
問題であった。例えば、低炭素アルミキルド鋼の場合、
鋳込み初期の鋳片の酸化による含有ＡＩ量の低下は２０
Ｘ １０−３％もあり、乙のため酸化されたＡｌ２Ｏ
３による鋼材の清浄度劣化は著しく、高級鋼として使用
することは困難であった。Conventionally, in order to prevent re-oxidation at the initial stage of casting, a method has been adopted in which A gas is introduced into the tundish to lower the 0% inside the tundish, but this has not been sufficiently effective and has been problematic.For example: , for low carbon aluminum killed steel,
The decrease in the amount of AI contained due to oxidation of the slab at the initial stage of casting is 20%.
X 10-3%, oxidized Al2O
The cleanliness of the steel material deteriorated significantly due to No. 3, making it difficult to use it as high-grade steel.
本発明の目的は、上記従来技術の問題点を解決し、連続
鋳造における鋳込開始時の効果的な溶鋼酸化防止方法を
提供するにある。An object of the present invention is to solve the problems of the prior art described above and to provide an effective method for preventing oxidation of molten steel at the start of pouring in continuous casting.
〔問題点を解決するための手段および作用〕本発明者は
従来の鋳込み開始時のタンディツシュの雰囲気について
詳細な調査を行った。調査結果は第５図に示す如く、タ
ンディツシュ予熱直後ではｏＢ度は４％程度であるが、
パージ用のＡｒガスを導入すると１％程度まで低下する
。次に注入に先立ってスライディングノズル８を第６図
に示す如く開とすると空気が侵入して再度上昇して３％
程度となり、この時点で溶鋼が注入され鋳込みが開始さ
れる。一般的に注入初期のＷＩ鋼渇度はタンディツシュ
を予熱しても低くスライディングノズルにおける溶鋼の
凝固閉塞を防ぐため、従来、あらかじめスライディング
ノズルは開としていた。[Means and effects for solving the problems] The present inventor conducted a detailed investigation on the atmosphere of the conventional tundish at the start of casting. As shown in Figure 5, the investigation results show that the OB degree is approximately 4% immediately after preheating the tundish.
When Ar gas for purging is introduced, it decreases to about 1%. Next, before injection, when the sliding nozzle 8 is opened as shown in Figure 6, air enters and rises again to 3%.
At this point, molten steel is injected and casting begins. In general, the dryness of WI steel at the initial stage of injection is low even if the tundish is preheated, so that the sliding nozzle is conventionally opened in order to prevent solidification and clogging of the molten steel in the sliding nozzle.
０２が３％の時点で鋳込みが開始されるので溶鋼は再酸
化されるが、その後は空気の侵入も停止するので０２は
１％程度に再び低下する。これらの調査結果から、開始
時の溶鋼酸化の原因はスライディングノズルからの空気
の侵入であるので、スライディングノズルからの空気の
侵入を防止することによって溶鋼の初期酸化を防止でき
ることを見い出し、本発明を完成することができた。Since pouring is started when 02 is 3%, the molten steel is reoxidized, but after that, air entry also stops and 02 drops again to about 1%. From these investigation results, we discovered that the cause of oxidation of molten steel at the beginning is the intrusion of air from the sliding nozzle, and that by preventing the intrusion of air from the sliding nozzle, the initial oxidation of molten steel can be prevented, and we have developed the present invention. I was able to complete it.
本発明の要旨とするところは次の如くである。The gist of the present invention is as follows.
すなわち、溶鋼を取鍋からロングノズルを介して不活性
ガスの導入されているタンディツシュに注入し、更にス
ライディングノズルを介して連鋳鋳型に鋳込みを開始す
るに際し、前記スライディングノズルを閉として前記溶
鋼を前記タンディツシュの底部に設けた層内に注入し、
前記溶鋼が前記堰外に溢流もしくは前記スライディング
ノズルに達する時点で該スライディングノズルを開とし
前記連鋳鋳型への鋳込みを開始することを特徴とする連
続鋳造における鋳込み開始時の溶鋼酸化防止方法である
。That is, when pouring molten steel from a ladle through a long nozzle into a tundish into which inert gas is introduced, and then starting casting into a continuous casting mold through a sliding nozzle, the sliding nozzle is closed and the molten steel is poured. injected into a layer provided at the bottom of the tundish;
A method for preventing oxidation of molten steel at the start of pouring in continuous casting, characterized in that when the molten steel overflows outside the weir or reaches the sliding nozzle, the sliding nozzle is opened and pouring into the continuous casting mold is started. be.
本発明の詳細を実施例により説明する。先ず本発明で使
用する装置を第１図によ＾説明する。タンディツシュ６
にはｆｉ１２が設けられ、取鍋２と［１２の間はシール
装置１４が設けられ、蓋１２側に設けられた囲の中に充
填された砂の中に取＃Ｆ４２の下に設けられたリングを
挿入してシールが行われている。また、Ｍ１２にはＡｒ
ガスの吹込み管１６が設けられている。The details of the present invention will be explained by examples. First, the apparatus used in the present invention will be explained with reference to FIG. tanditshu 6
A sealing device 14 is provided between the ladle 2 and the ladle 12, and a sealing device 14 is provided below the ladle #F42 in the sand filled in the enclosure provided on the lid 12 side. A ring is inserted and sealed. Also, M12 has Ar
A gas blowing pipe 16 is provided.
更にタンディツシュ６の底部のロングノズル４から溶鋼
が落下する部分には堰１８が設けられ、堰１８の下部に
は開孔２０が設けられ、開孔２０は鉄板で閉止されてい
る。堰１８は取鍋２からの溶鋼注入流を上昇流に転換し
て溶鋼表面に散布されろブラックスパウダーに達し非金
属介在物を除去された後、スライディングノズル８側へ
向う流動となる。なお開孔２０は環１８内への残鋼を防
止する作用を有している。Further, a weir 18 is provided at the bottom of the tundish 6 where the molten steel falls from the long nozzle 4, and an opening 20 is provided at the bottom of the weir 18, and the opening 20 is closed with an iron plate. The weir 18 converts the flow of molten steel injected from the ladle 2 into an upward flow which is sprayed onto the surface of the molten steel, reaches black powder, removes non-metallic inclusions, and then flows toward the sliding nozzle 8 side. Note that the opening 20 has the function of preventing residual steel from entering the ring 18.
次に本発明法による鋳込み開始手順を説明する。Next, the procedure for starting casting according to the method of the present invention will be explained.
まず、予熱後のタンディツシュ６にＡｒガス吹込み管１
６によりＡ「ガスを導入する。この時、スライディグノ
ズル８は閉状態であるが、タンディツシュ６内の０゜が
１％程度に低下した時点でスライディングノズル８を閉
状態のまま取ｗｉＩ２からロングノズルを介して溶鋼を
環１８内に注入する。溶鋼が環１８内に充満して堰１８
外へ溢流するか、もしくは溶鋼が開孔２０の鉄板を溶損
して流出しスライディングノズル８に達する時点でスラ
イディングノズル８を開として、溶鋼をスライディング
ノズル８を介して連鋳鋳型に鋳込みを開始し、以下通常
の鋳込みを継続する。First, the Ar gas blowing pipe 1 is inserted into the tundish 6 after preheating.
A gas is introduced by 6. At this time, the sliding nozzle 8 is in the closed state, but when the 0° inside the tundish 6 has decreased to about 1%, the sliding nozzle 8 is left in the closed state and the long Molten steel is injected into the ring 18 through the nozzle.The molten steel fills the ring 18 and flows into the weir 18.
When the molten steel overflows to the outside or melts the iron plate in the opening 20 and flows out and reaches the sliding nozzle 8, the sliding nozzle 8 is opened and the molten steel starts to be poured into the continuous casting mold through the sliding nozzle 8. Then, normal casting is continued.
鋳込み開始時のタンディツシュ６内の０２の濃度を調整
すると第３図の如くである。すなわち、スライディング
ノズル８を開いてから溶鋼の流出まで短時間であるので
空気が侵入することなく、鋳込み開始初期においてタン
ディツシュ６内の０２は１％程度を維持し、従来法の第
５図に示す如く一時０゜が３％まで上昇するのと大きな
差異があり、本発明法では鋳込み開始時の溶鋼酸化を防
止することができる。The concentration of 02 in the tundish 6 at the start of casting is adjusted as shown in FIG. In other words, since it takes a short time from the opening of the sliding nozzle 8 to the outflow of molten steel, air does not enter, and the 02 in the tundish 6 is maintained at about 1% at the beginning of casting, as shown in Fig. 5 of the conventional method. There is a big difference from the case where 0° increases to 3% at one time, and the method of the present invention can prevent oxidation of molten steel at the start of pouring.
［実施例］
Ｃ：０．０４％、Ｓｉ：０．０１％、Ｍｎ： ０．４０
％、Ａｌ：０．０４０％の低次Ａｊキルド鋼を本発明法
によってあらかじめスライディングノズルを閉としてタ
ンディツシュへの鋳込みを開始し鋳造を行った。[Example] C: 0.04%, Si: 0.01%, Mn: 0.40
%, Al: 0.040% low-order Aj killed steel was cast by the method of the present invention by closing the sliding nozzle in advance and starting casting into a tundish.
一方、比較のため、同一成分の溶鋼を注入に先だって第
６図に示す如くスライディングノズルを開として、ダン
ティッシュに注入を開始する従来の方法でも鋳込みを行
った。On the other hand, for comparison, casting was also carried out using a conventional method in which the sliding nozzle was opened as shown in FIG. 6 prior to pouring molten steel having the same composition, and the pouring into the dan tissue was started.
これらの本発明実施例と従来例について鋳込み □開
始時のタンディツシュ内の溶鋼のＡＩ量を調査し、その
結果を第４図に示しｔこ。第４図から従来例においては
鋳込み時にＡＩが２０Ｘ１０−’％も低下し著しい酸化
を受けているのに対し、本発明実施例では１〜２ Ｘ
１０−３％の低下にすぎず、鋳込み開始時の溶鋼酸化が
防止されていることがわかる。Regarding these embodiments of the present invention and conventional examples, the AI amount of the molten steel in the tundish at the start of casting was investigated, and the results are shown in Fig. 4. Figure 4 shows that in the conventional example, the AI decreased by 20X10-'% during casting and was severely oxidized, whereas in the example of the present invention, the AI decreased by 1 to 2X.
The decrease was only 10-3%, indicating that molten steel oxidation at the start of pouring was prevented.
［発明の効果］
本発明は上記実施例からも明らかな如く、鋳込み開始時
にスライディングノズルを閉としてタンディツシュに溶
鋼を注入し、溶鋼が堰外に溢流もしくはスライディング
ノズルに達する時点でスライディングノズルを開として
鋳型への鋳込みを開始することにより、タンディツシュ
内への空気の侵入を防止し、鋳造初期の溶鋼酸化を防止
することができた。[Effects of the Invention] As is clear from the above embodiments, the present invention injects molten steel into the tundish with the sliding nozzle closed at the start of casting, and opens the sliding nozzle when the molten steel overflows outside the weir or reaches the sliding nozzle. By starting to pour the steel into the mold, it was possible to prevent air from entering the tundish and prevent molten steel from oxidizing in the early stages of casting.
第１図は本発明実施例を説明する鋳造装置の断面図、第
２図は連続鋳造装置の模式断面図、第３図は本発明実施
例の鋳造初期におけるタンディツシュ内雰囲気の０２ｆ
１４度変化を示す線図、第４図は本発明実施例と従来例
の鋳造初期におけろタンディツシュ内の溶鋼のＡＩ含有
量の変化を示す線図、第５図は従来例の鋳造初期におけ
るタンディツシュ内雰囲気の０２ｆ：４度変化を示す線
図、第６図は従来例におけるスライディングノズルから
タンディツシュへの空気の侵入を示す断面図である。Fig. 1 is a sectional view of a casting apparatus for explaining an embodiment of the present invention, Fig. 2 is a schematic sectional view of a continuous casting apparatus, and Fig. 3 is a 02f atmosphere in the tundish at the initial stage of casting according to an embodiment of the present invention.
4 is a diagram showing the change in AI content of molten steel in the tundish at the early stage of casting in the embodiment of the present invention and the conventional example. Figure 5 is a diagram showing the change in AI content in the molten steel in the early stage of casting in the conventional example. A diagram showing a 02f:4 degree change in the atmosphere inside the tundish, and FIG. 6 is a sectional view showing the intrusion of air from the sliding nozzle into the tundish in a conventional example.
Claims (1)
の導入されているタンデイッシユに注入し、更にスライ
ディングノズルを介して連鋳鋳型に鋳込みを開始するに
際し、前記スライディングノズルを閉として前記溶鋼を
前記タンデイッシユの底部に設けた堰内に注入し、前記
溶鋼が前記堰外に溢流もしくは前記スライディングノズ
ルに達する時点で該スライディングノズルを開とし前記
連鋳鋳型への鋳込みを開始することを特徴とする連続鋳
造における鋳込み開始時の溶鋼酸化防止方法。(1) When injecting molten steel from a ladle through a long nozzle into a tundish into which an inert gas is introduced, and then starting casting into a continuous casting mold through a sliding nozzle, the molten steel is closed with the sliding nozzle closed. is injected into a weir provided at the bottom of the tundish, and when the molten steel overflows outside the weir or reaches the sliding nozzle, the sliding nozzle is opened and casting into the continuous casting mold is started. A method for preventing oxidation of molten steel at the start of pouring in continuous casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP470587A JPS63174764A (en) | 1987-01-12 | 1987-01-12 | Method for preventing molten steel oxidation at casting start in continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP470587A JPS63174764A (en) | 1987-01-12 | 1987-01-12 | Method for preventing molten steel oxidation at casting start in continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63174764A true JPS63174764A (en) | 1988-07-19 |
Family
ID=11591294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP470587A Pending JPS63174764A (en) | 1987-01-12 | 1987-01-12 | Method for preventing molten steel oxidation at casting start in continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63174764A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133535A (en) * | 1990-05-29 | 1992-07-28 | Magneco/Metrel, Inc. | Impact pad with horizontal flow guides |
| US6089309A (en) * | 1997-04-15 | 2000-07-18 | South China University Of Technology | Method for manufacturing gradient material by continuous and semi-continuous casting |
| CN106077544A (en) * | 2016-08-04 | 2016-11-09 | 浙江铁狮高温材料有限公司 | Continuous casting device separate system |
| KR101981455B1 (en) * | 2017-12-11 | 2019-05-24 | 주식회사 포스코 | Processing apparatus for molten material |
| KR20190069093A (en) * | 2017-12-11 | 2019-06-19 | 주식회사 포스코 | Processing apparatus for molten material |
-
1987
- 1987-01-12 JP JP470587A patent/JPS63174764A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133535A (en) * | 1990-05-29 | 1992-07-28 | Magneco/Metrel, Inc. | Impact pad with horizontal flow guides |
| US6089309A (en) * | 1997-04-15 | 2000-07-18 | South China University Of Technology | Method for manufacturing gradient material by continuous and semi-continuous casting |
| CN106077544A (en) * | 2016-08-04 | 2016-11-09 | 浙江铁狮高温材料有限公司 | Continuous casting device separate system |
| KR101981455B1 (en) * | 2017-12-11 | 2019-05-24 | 주식회사 포스코 | Processing apparatus for molten material |
| KR20190069093A (en) * | 2017-12-11 | 2019-06-19 | 주식회사 포스코 | Processing apparatus for molten material |
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