JPS619946A - Method and device for continuously casting metallic molten metal - Google Patents
Method and device for continuously casting metallic molten metalInfo
- Publication number
- JPS619946A JPS619946A JP12640085A JP12640085A JPS619946A JP S619946 A JPS619946 A JP S619946A JP 12640085 A JP12640085 A JP 12640085A JP 12640085 A JP12640085 A JP 12640085A JP S619946 A JPS619946 A JP S619946A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- supply pipe
- cross
- metal supply
- melt
- 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
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
- B22D11/047—Means for joining tundish to mould
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、金属＠湯、特に高融点合金例えば鯛を連続鋳
造する方法および装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method and apparatus for continuous casting of metals, particularly high melting point alloys such as sea bream.
従来の技術
金属溶湯、特に合金の凝固の際いわゆる偏析が生じ、す
なわち凝固する銅塊または連続鋳片の横断面および場合
によっては縦断面に関して異なる化学的または物理的組
成が生ずる。この種の偏析を防止または少なくするため
に、銅塊および連続鋳片において溶湯を鋳型内で凝固中
動かすことは公知である。この場合溶湯を例えば電磁撹
拌装置によって鋳込み方向または鋳型縦方向の回りに回
転させることができ、または鋳型外縁から鋳型内縁へ流
れを生ぜしめることができる。このような流れを、適切
に設けられた電磁撹拌装置および適当な制徊装置によっ
て得ることができる。BACKGROUND OF THE INVENTION During the solidification of molten metals, in particular alloys, so-called segregation occurs, ie different chemical or physical compositions occur in the cross-section and, where appropriate, in the longitudinal section of the solidified copper ingot or continuous slab. In order to prevent or reduce this type of segregation, it is known in copper ingots and continuous slabs to move the molten metal within the mold during solidification. In this case, the molten metal can be rotated, for example by means of an electromagnetic stirring device, in the pouring direction or in the longitudinal direction of the mold, or can be caused to flow from the outer mold edge to the mold inner edge. Such a flow can be obtained by suitably equipped electromagnetic stirring devices and suitable control devices.
しかし結晶化前面前の開始する溶湯流は不均質性または
偏析帯を生ぜしめることがある。これらの公知の負の偏
析（白色帯）は製品の品質を著しく損なう。However, melt flow starting before the crystallization front can give rise to inhomogeneities or segregation bands. These known negative segregations (white bands) significantly impair product quality.
ドイツ連邦共和国特許出願公開第２９０３２３４号明細
書から垂直形連続鋳造方法が公知であり、この場合浴湯
は溶湯容器から出湯管を介して鋳型に入る。出湯管の回
りに電磁撹拌装置が設けられており、この電磁撹拌装置
により金属溶湯を撹拌することができるので、金属溶湯
は、鋳型が始める、流れ方向に加えて重畳された運動を
既に与えられている。A vertical continuous casting method is known from DE 29 03 234 A1, in which the bath water enters the mold from a molten metal container via a tap pipe. An electromagnetic stirring device is provided around the tap pipe, and the molten metal can be stirred by this electromagnetic stirring device, so that the molten metal is already given a superimposed movement in addition to the flow direction initiated by the mold. ing.
水平形連続鋳命において、溶湯流人を防止するために鋳
型の前の溶湯供給管路に喋磁弁を設けることは既に公知
である。In horizontal continuous casting, it is already known to provide a talking valve in the molten metal supply line in front of the mold in order to prevent the molten metal from flowing out.
発明が岸決しようとする問題点
本発明は、装置に関する費用をできるだけ少なくシ、エ
ネルギーを節約する操業を可能にしかつ連続鋳片の内部
品質を著しく高めるような特に高い表面品質が得られる
、金Ｉ！ｘ溶湯、特に高融点合金例えば鋼を水平方向に
連続鋳造する方法および装置を提供することを目的とし
ている。The problem that the invention seeks to solve The invention provides a method for producing a metal with a particularly high surface quality, which minimizes equipment costs, allows an energy-saving operation and significantly increases the internal quality of the continuous slab. I! It is an object of the present invention to provide a method and an apparatus for horizontally continuous casting of molten metal, in particular high melting point alloys such as steel.
金属溶湯が少なくとも１つの溶湯供給管路を介して溶湯
容器、取鍋などからはげ水平に配置されかつこの溶湯容
器と液密に結合された、なるべく液冷鋳型へ供給され、
この鋳型から一部凝固した連続鋳片がなるべく徐々に、
場合によっては一部後方へ引き出される、金属溶湯、特
に高融点合金例えば鰐を連続鋳造する本発明による方法
は、本質的には、溶湯が溶湯供給管路内で撹拌され、流
れ方向の回りの溶湯の回転が生ぜしめられ、既に回転し
ている溶湯が、なるべく鋳型より小さい横断面積を持つ
オリフィスを介して鋳型へ導入されることに存する。こ
のような方法では溶湯が既に回転しながら鋳型に入るの
で、例えば連続鋳片を徐々に引き出す際に切れ込みを持
つことがある境界層すなわち表面層が特に高い均質性を
有し、その際同時に横断面積変化を介して金属溶湯流れ
方向に付加的な加速が生ぜしめられる。別の利点は、既
に連続鋳片凝固殻形成の開始の際に金属溶湯の回転流が
得られることに存する。molten metal is fed via at least one molten metal supply line from a molten metal container, ladle, etc. to a preferably liquid-cooled mold which is arranged horizontally and is connected in a liquid-tight manner to the molten metal container;
From this mold, the partially solidified continuous slab is gradually
The method according to the invention for the continuous casting of molten metals, in particular high-melting point alloys, e.g. A rotation of the molten metal is generated and the already rotating molten metal is introduced into the mold via an orifice which preferably has a smaller cross-sectional area than the mold. In such a method, the molten metal enters the mold while already rotating, so that the boundary layer or surface layer, which may have notches, for example when gradually withdrawing a continuous slab, has a particularly high homogeneity and is simultaneously An additional acceleration is produced in the direction of flow of the molten metal through the area change. A further advantage consists in the fact that a rotating flow of the molten metal is obtained even at the beginning of the continuous slab solidification shell formation.
溶湯供給管路が少なくとも２つの異なる横断面積を持ち
、溶湯供給管路の対応部分が互いに接線方向に開口して
いる場合は、溶湯内の撹拌運動は新たなエネルギー消費
および費用のかかる装置なしに実現できる。If the melt supply line has at least two different cross-sectional areas and the corresponding parts of the melt supply line open tangentially to each other, stirring movements in the melt can be carried out without new energy consumption and expensive equipment. realizable.
溶湯供給管路が少なくとも２つの互いに続く、横断面積
の異なる部分を持ち、溶湯がなるべく横断面積の小さい
方の部分から横断面積の大きい方の部分へほぼ接線方向
に導入される場合は、流れ方向の回りの溶湯の回転が付
加的なエネルギーなしに、例えば電磁石などにより実現
でき、その際同時に全金属流が動かされる。If the melt supply line has at least two mutually succeeding parts with different cross-sectional areas and the melt is preferably introduced approximately tangentially from the part with the smaller cross-sectional area to the part with the larger cross-sectional area, the flow direction The rotation of the molten metal around can be realized without additional energy, for example by means of electromagnets, with the entire metal stream being moved at the same time.
溶湯供給管路の各点におけるＷｇ湯の流速が時間にわた
って平均して一定に保たれる、特に均質な連続鋳片が得
られる。A particularly homogeneous continuous slab is obtained in which the flow rate of the Wg melt at each point of the melt supply line remains constant on average over time.
溶湯が溶湯容器からほば垂直に配置された溶湯供給管路
から、この溶湯供給管路に対して傾きなるべくほぼ水平
に配置された短い溶湯供給管路へ導出される場合は、溶
湯容器内の溶湯の非常に僅かな過熱を厳守することがで
きる。When the molten metal is led out from the molten metal container from a molten metal supply pipe arranged almost vertically to a short molten metal supply pipe arranged at an angle as close as possible to the molten metal supply pipe, the molten metal in the molten metal container is A very slight overheating of the molten metal can be strictly observed.
溶湯が、ほぼ垂直に配置された溶湯供給管路における方
がこの溶湯供給管路に対して傾いて配置された溶湯供給
管路におけるより速く流れかつ後者の溶湯供給管路へこ
の溶湯供給管路の横断面に対してほぼ接線方向に導入さ
れることによって、短い溶湯供給管路を得ることができ
る。The molten metal flows faster in the molten metal supply pipe arranged almost vertically than in the molten metal supply pipe arranged at an angle with respect to the molten metal supply pipe, and the melt flows faster in the molten metal supply pipe arranged at an angle with respect to the molten metal supply pipe arranged in the latter molten metal supply pipe. Short melt supply lines can be obtained by introducing the melt approximately tangentially to the cross section of the melt.
ｌＲ９容器と、ほぼ水平に配置されたなるべく液冷鋳型
と、これらの間に配置された少なくとも１つの溶湯供給
管路と、連続鋳片引出し装置とを持つ、金属溶湯、特に
高融点金属および合金、例えば綱を連続鋳造する装置は
、本質的に、溶湯供給管路が少なくとも２つの互いに続
く、横断面積の異なる部分を持ち、溶湯の流れ方向に見
てなるべく横断面積の小さい方の第１の部分がそれに続
く部分へほば接線方向に開口していることに存する。Molten metals, in particular refractory metals and alloys, with an lR9 vessel, an approximately horizontally arranged preferably liquid-cooled mold, at least one melt supply line arranged between them and a continuous slab withdrawal device. , for example, an apparatus for continuous casting of steel, in which the molten metal supply line essentially has at least two successive parts with different cross-sectional areas, the first having the smallest possible cross-sectional area as viewed in the flow direction of the molten metal. This consists in that the part opens approximately tangentially into the part following it.
この種の装置によって特に簡単な水平形連続鋳造装置が
提供され、この場合は同時に、鋳型へ流入する溶湯の回
転が実現されるので、連続鋳片の表面損傷および偏析も
特に少なくすることができる。A device of this type provides a particularly simple horizontal continuous casting device, in which at the same time rotation of the molten metal entering the mold is realized, so that surface damage and segregation of the continuous slab can also be particularly reduced. .
本発明の別の特徴によれば、溶湯供給管路の軸線が溶湯
流の方向の転向範囲でねじれており、なるべく横断面積
の大きい方の溶湯供給管路の内径のＩ／２ないし１／６
の標準間隔を持っている。According to another feature of the invention, the axis of the melt supply line is twisted in the range of reversal of the direction of the melt flow, preferably from I/2 to 1/6 of the internal diameter of the melt supply line with the larger cross-sectional area.
It has a standard interval of .
本発明の別の何利な構成によれば、溶湯供給管路が溶湯
容器内で栓により閉鎖可能である。According to another advantageous embodiment of the invention, the melt supply line can be closed in the melt container with a plug.
実施例
図面に示された実施例について本発明を以下に詳細に説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention will be explained in detail below with reference to embodiments shown in the drawings.
第１図による溶湯容器１は溶湯供給管路２を持っており
、この溶湯供給管路はオリフィス３の流出口を介して液
冷鋳型４へ開口している。The melt container 1 according to FIG. 1 has a melt supply line 2 which opens into a liquid-cooled mold 4 via an outlet of an orifice 3.
オリフィスの最小自由ＩＩＩｔ断面積は鋳型のそれより
４＼さい。溶湯容器から突き出ている溶湯供給管路はク
ランプ５を介して溶湯容器】に取り付けられている。鋳
型への溶湯供給は栓６を降下させることによって止める
ことができる。第１ａ図から分かるように、溶湯供給管
路は碑なる横断面積を持っており、流れ方向に見て第１
の部分７はそれに続く部分８へ接続方向に開口している
。開口範囲において横断面７はほぼスリット跋である。The minimum free IIIt cross-sectional area of the orifice is 4\ larger than that of the mold. A molten metal supply pipe protruding from the molten metal container is attached to the molten metal container via a clamp 5. The supply of molten metal to the mold can be stopped by lowering the tap 6. As can be seen from Figure 1a, the molten metal supply pipe has a monumental cross-sectional area, and the
The part 7 opens in the connection direction into the part 8 which follows it. In the area of the opening, the cross section 7 is approximately as wide as the slit.
第２図に溶湯供給管路の別の断面が丞されており、この
場合はほぼ円形の横断面を持つ溶湯供給管路９が浴湯供
給管路の部分１ｏへ接線方向に開口し、この部分もやは
り円形横断面を持っている。部分９の横断面積は約１５
ｃｄであり、それに対して部分１０の横断面積は４３ａ
Ｉである。Another cross-section of the melt supply line is shown in FIG. 2, in which a melt supply line 9 with an approximately circular cross section opens tangentially into the section 1o of the bath water supply line, and this The parts also have a circular cross section. The cross-sectional area of section 9 is approximately 15
cd, whereas the cross-sectional area of portion 10 is 43a
It is I.
Ｗ準間隔ａは横断面積の大きい方の溶湯供給管路のＰ３
径ｄの約１／４である。The W semi-distance a is P3 of the molten metal supply pipe with the larger cross-sectional area.
It is approximately 1/4 of the diameter d.
水平連続鋳造装置のためにはさらに、連続鋳片引出し装
置を設けることが必要であるが、この連続鋳片引出し装
置は本発明の構成要素ではないので、これに関する説明
はここでは省略できる。For the horizontal continuous casting apparatus, it is further necessary to provide a continuous slab drawing device, but since this continuous slab drawing device is not a component of the present invention, a description thereof can be omitted here.
パイロット！装置においてまず従来技術によって水平連
続鋳造法により種々の組成の鉄系合金および炭＊＊が鋳
造された。鋳込み横断面積は直径９６朋および１００Ｂ
平方であった。、溶湯重量は２．５および＋４ｔであっ
た。連続鋳片材料は綿密な品質検査を受けた。このため
に連続鋳片の横および縦方向の検査が行なわれた。pilot! In the apparatus, iron-based alloys and charcoal** of various compositions were first cast by a horizontal continuous casting method using conventional techniques. Casting cross-sectional area is 96 mm in diameter and 100 mm in diameter.
It was square. The weight of the molten metal was 2.5 and +4 tons. The continuous slab material underwent thorough quality inspection. For this purpose, continuous slabs were examined in the transverse and longitudinal directions.
従来技術により鋳込まれた連続鋳片の検査から次の結果
が得られた。The following results were obtained from the inspection of continuous slabs cast by the prior art.
円形連続鋳片は異なる殻成長を示し、この即成長は最後
に多角形の横断面形状になった。さらに冷却応力亀裂が
認められ、連続鋳片欠陥は鋼の過熱が大きくなるにつれ
て増えた。鋳引けおよび凝固組織は連続鋳片内に偏心的
に配置されていた。The circular continuous slabs showed different shell growth, and this immediate growth finally took on a polygonal cross-sectional shape. Furthermore, cooling stress cracks were observed, and continuous slab defects increased as the steel overheated. The shrinkage and solidification structures were eccentrically located within the continuous slab.
電磁界を使用することによって、約１／２の半径からの
連続鋳片の内部において結晶化形状を均一化しかつ偏心
釣用けを心多孔性に変換することができたが、しかし同
心的に配置された、負の偏析の条片、いわゆる白色帯が
生じた。By using an electromagnetic field, it was possible to homogenize the crystallization shape and convert eccentric porousness to central porosity inside a continuous slab from about 1/2 radius, but not concentrically. Distributed strips of negative segregation, so-called white bands, formed.
第１図による装置を組み込みかつ本発明による方法を使
用して、同じ合金を用いた試験が繰り返された。本発明
による方法により鋳込まれた連続鋳片の検査から次のよ
うな結果が得られた。The tests were repeated with the same alloy incorporating the apparatus according to FIG. 1 and using the method according to the invention. The following results were obtained from the inspection of continuous slabs cast by the method according to the present invention.
例１
次のような重量％の組成を持つ合金の鋳片２５ｔＣＯ，
３８、Ｓｉ ００２５ 、Ｍｎ ０．７、Ｐ Ｏ，０２
＋ 、ＳＯ，０１２、残り鉄および不純物
鋳込み速度または鋳型からの平均的な鋳片引出し速度は
１．４１＋１／Ｗｉｎであった。鋳型は９６Ｍの円形横
断面を持っていた。鋳込みの開始時における鯛の過熱は
７５８Ｃであり、それに応じて溶湯容器内の＃Ｉ湿温度
１５７０℃であった。溶湯供給管路は内径４０Ｍの第１
の部分を持ち、この部分は内径７ｊ）＋＋ｓの第２の部
分へ接線方向に開口していた。両方の゛横断面は円形で
あった。互いにねじれて配置された軸の標準間隔は１７
．５Ｍｊｌであった。連続鋳片の横および縦方向の検査
から次のような結果が得られた。Example 1 25tCO of alloy slab with the following composition by weight %,
38, Si 0025, Mn 0.7, PO,02
+, SO, 012, residual iron and impurity casting speed or average slab withdrawal speed from the mold was 1.41+1/Win. The mold had a circular cross section of 96M. The superheat of the sea bream at the beginning of pouring was 758C, and the #I humidity temperature in the melt vessel was accordingly 1570C. The molten metal supply pipe is the first with an inner diameter of 40M.
, which opened tangentially into a second part of internal diameter 7j)++s. Both cross sections were circular. The standard spacing between axes arranged twisted relative to each other is 17
．． It was 5Mjl. The following results were obtained from the horizontal and vertical inspection of the continuous slab.
連続鋳片の横断面形状は円形であり、鋳型内の連続鋳片
の殻形成は均一であった。溶湯の回転によって、鯛の高
過熱の際にも表面に近い連続鋳片区域に冷却応力亀裂は
生じなかった。結晶化形状は十分小球体状であり、鋳引
けの偏心距離を著しく／ＩＸさくすることができた。The cross-sectional shape of the continuous slab was circular, and the shell formation of the continuous slab in the mold was uniform. Due to the rotation of the molten metal, cooling stress cracks did not occur in the continuous slab area near the surface even during high superheating of the sea bream. The crystallized shape was sufficiently small spherical, and the eccentric distance of the casting sink could be significantly reduced by /IX.
例２
例１の場合と同じ銘柄の鯛を用いて行なわれた別の試験
において、鋳型の後に撹拌電磁界が使用された。これら
の連続鋳片の検査から、連続鋳片の品質が著しく高めら
れたことが分かった。予想およびこれまでの経験に反し
て、移動電磁界を使用した場合は鋳型の後に連続鋳片材
料には偏析条は生じなかった。電磁界は連続鋳片内部品
質のさらに大きな改善を生ぜしめた。Example 2 In another test conducted with the same brand of sea bream as in Example 1, a stirring electromagnetic field was used after the mold. Inspection of these continuous slabs revealed that the quality of the continuous slabs was significantly improved. Contrary to expectations and previous experience, no segregation streaks were formed in the continuous slab material after the mold when a moving electromagnetic field was used. The electromagnetic field produced an even greater improvement in the internal quality of the continuous slab.
本発明による方法により鋳込まれた連続鋳片の顕著な特
徴は、表面に近い連続鋳片区域の結晶化および表面品質
の大きな改善であった。引出しパラメータが同じ場合は
、切れ込みが減少されて、後続の圧延の際に連続鋳片の
変形度が高くても第】の穴型にぜい性が生じなかった。A notable feature of the continuous slabs cast by the method according to the invention was the crystallization of the continuous slab area close to the surface and a significant improvement in surface quality. When the drawing parameters were the same, the notch was reduced and no embrittlement occurred in the hole mold #2 even if the continuous slab was highly deformed during subsequent rolling.
例３ 次のような重量％の組成の合金が鋳込まれた。Example 3 An alloy with the following weight percent composition was cast:
ＣＯ，０３、Ｓｊ ０．６５ 、Ｍｎ １．１２、Ｃｒ
１７．９０、Ｎｉ ９．０２、Ｐ Ｏ，０２２および
３０．０１２ 、残り鉄鋳込み速度はＩ −６ｍ／ｍ
ｌ ｎであった。鋳込み横断面積は＋００朋平方であっ
た。鋳込みの開始時における合金の過熱は８０℃であっ
た。それに応じて溶湯容器内の鋼温度は１５４０℃であ
った。CO,03, Sj 0.65, Mn 1.12, Cr
17.90, Ni 9.02, P O, 022 and 30.012, remaining iron casting speed is I -6 m/m
It was ln. The casting cross-sectional area was +00 square meters. The superheat of the alloy at the beginning of casting was 80°C. Accordingly, the steel temperature in the molten metal container was 1540°C.
連続鋳片の横断面形状は正方形であり、この場合溶湯の
回転は高い鯛過熟の際にも連続鋳片に冷却応力亀裂を生
ぜしめなかった。結晶化形状は十分に小球体状であった
。鋳引けの偏心距離を著しく小さくすることができ、同
時に連続鋳片表面における切れ込みを著しく減少させる
ことができた。続く熱変形の際に第１の変形行程の後に
亀裂は生己なかった。The cross-sectional shape of the continuous slab was square, and in this case, the rotation of the molten metal did not cause cooling stress cracks in the continuous slab even when the sea bream was highly overripe. The crystallization shape was well spheroidal. It was possible to significantly reduce the eccentric distance of the casting sink, and at the same time, it was possible to significantly reduce the notches on the surface of the continuous slab. During subsequent thermal deformation, no cracks were formed after the first deformation stroke.
第１図は水平形連続鋳造装置の概略断面図、Ｎ１８図は
横断面積の異なる溶湯供給管路を持つ溶湯容器の部分断
面図、第２図は溶湯供給管路の断面図である。
２・・・溶湯供給管路、７．８，９，１０・・・溶湯供
給管路の部分
第１図
第１ａ図FIG. 1 is a schematic sectional view of a horizontal continuous casting apparatus, FIG. 2... Molten metal supply pipeline, 7.8, 9, 10... Part of the molten metal supply pipeline Figure 1 Figure 1a
Claims (1)
溶湯容器、取鍋などからほぼ水平に配置されかつこの溶
湯容器と液密に結合された、なるべく液冷鋳型へ供給さ
れ、この鋳型から連続鋳片がなるべく徐々に、場合によ
っては一部後方へ引き出される、金属溶湯を連続鋳造す
る方法において、溶湯が溶湯供給管路内で撹拌され、流
れ方向の回りの溶湯の回転が生ぜしめられ、既に回転し
ている溶湯が、なるべく鋳型より小さい横断面積を持つ
オリフィスの流出開口を介して鋳型へ導入されることを
特徴とする、金属溶湯を連続鋳造する方法。 ２ 溶湯供給管路が少なくとも２つの異なる横断面積を
持ち、溶湯供給管路の対応部分が互いに接線方向に開口
していることを特徴とする、特許請求の範囲第１項に記
載の方法。 ３ 溶湯供給管路が少なくとも２つの互いに続く、横断
面積の異なる部分を持ち、溶湯がなるべく横断面積の小
さい方の部分から横断面積の大きい方の部分へほぼ接線
方向に導入されることを特徴とする、特許請求の範囲第
１項または第２項に記載の方法。 ４ 溶湯供給管路の各点における溶湯の流速が時間にわ
たって平均してほぼ一定に保たれることを特徴とする、
特許請求の範囲第１項ないし第３項のうち１つに記載の
方法。 ５ 溶湯が溶湯容器からほぼ垂直に配置された溶湯供給
管路から、この溶湯供給管路に対して傾きなるべくほぼ
水平に配置された溶湯供給管路へ導出されることを特徴
とする、特許請求の範囲第１項ないし第４項のうち１つ
に記載の方法。 ６ 溶湯が、ほぼ垂直に配置された溶湯供給管路におけ
る方がこの溶湯供給管路に対して傾いて配置された溶湯
供給管路におけるより速く流れかつ後者の溶湯供給管路
へこの溶湯供給管路の横断面に対してほぼ接線方向に導
入されることを特徴とする、特許請求の範囲第１項ない
し第５項のうち１つに記載の方法。 ７ 溶湯容器と、ほぼ水平に配置されたなるべく液冷鋳
型と、これらの間に配置された少なくとも１つの溶湯供
給管路と、連続鋳片引出し装置とを持つ、金属溶湯を連
続鋳造する装置において、溶湯供給管路（２）が少なく
とも２つの互いに続く、横断面積の異なる部分 （７、８、９）を持ち、溶湯の流れ方向に見て第１の部
分（７、９）がそれに続く部分（８、１０）へほぼ接線
方向に開口していることを特徴とする、金属溶湯を連続
鋳造する装置。 ８ 第１の部分（９）の横断面積がその次の部分（１０
）の横断面積より小さいことを特徴とする、特許請求の
範囲第６項に記載の装置。 ９ 溶湯供給管路の軸線が溶湯流の方向の転向範囲でね
じれており、なるべく横断面積の大きい方の溶湯供給管
路の内径（ｄ）の１／２ないし１／６の標準間隔（ａ）
を持っていることを特徴とする、特許請求の範囲第７項
または第８項に記載の装置。 １０ 溶湯供給管路（７）が溶湯容器（１）内で流入開
口に対して栓（６）により閉鎖可能であることを特徴と
する、特許請求の範囲第６項ないし第８項のうち１つに
記載の装置。 １１ 溶湯供給管路（７）が、互いにほぼ垂直に立って
いる２つの部分を持ち、一方の部分が鋳型と結合され、
他方の部分が溶湯容器と結合されていることを特徴とす
る、特許請求の範囲第７項ないし第１０項のうち１つに
記載の装置。[Scope of Claims] 1. Molten metal is supplied via at least one molten metal supply pipe from a molten metal container, ladle, etc. to a preferably liquid-cooled mold arranged approximately horizontally and liquid-tightly connected to the molten metal container. In this method of continuous casting of molten metal, the continuous slab is pulled out from the mold as gradually as possible, and in some cases partially backwards.The molten metal is stirred in the molten metal supply pipe, and the molten metal around the flow direction is drawn out. A method for continuous casting of molten metal, characterized in that rotation is generated and the already rotating molten metal is introduced into the mold via the outlet opening of an orifice, preferably with a smaller cross-sectional area than the mold. 2. Process according to claim 1, characterized in that the melt supply conduit has at least two different cross-sectional areas, and corresponding parts of the melt supply conduit open tangentially to each other. 3. The molten metal supply pipe has at least two mutually continuous parts with different cross-sectional areas, and the molten metal is preferably introduced from the part with the smaller cross-sectional area to the part with the larger cross-sectional area almost tangentially. The method according to claim 1 or 2, wherein: 4. characterized in that the flow velocity of the molten metal at each point of the molten metal supply pipe is kept approximately constant on average over time;
A method according to one of claims 1 to 3. 5. A patent claim characterized in that the molten metal is led out from a molten metal container from a molten metal supply conduit arranged substantially vertically to a molten metal supply conduit arranged at an angle preferably substantially horizontal to the molten metal supply conduit. The method according to any one of items 1 to 4 of the range. 6. The molten metal flows faster in the molten metal supply pipe arranged approximately vertically than in the molten metal supply pipe arranged at an angle with respect to the molten metal supply pipe, and the melt flows faster in the molten metal supply pipe arranged at an angle with respect to the molten metal supply pipe arranged in the latter molten metal supply pipe. 6. The method according to claim 1, wherein the method is introduced approximately tangentially to the cross section of the road. 7. An apparatus for continuously casting molten metal, comprising a molten metal container, a liquid-cooled mold arranged substantially horizontally, at least one molten metal supply pipe arranged between these, and a continuous slab drawing device. , the molten metal supply pipe (2) has at least two mutually succeeding parts (7, 8, 9) with different cross-sectional areas, the first part (7, 9) following in the direction of flow of the molten metal; An apparatus for continuously casting molten metal, characterized in that the opening is substantially tangential to (8, 10). 8 The cross-sectional area of the first part (9) is the same as that of the next part (10
7. Device according to claim 6, characterized in that the cross-sectional area of the device is smaller than the cross-sectional area of ). 9 The axis of the molten metal supply pipe is twisted in the range of turning the direction of the molten metal flow, and the standard interval (a) is 1/2 to 1/6 of the inner diameter (d) of the molten metal supply pipe with the largest cross-sectional area.
Device according to claim 7 or 8, characterized in that it has: 10. 1 of claims 6 to 8, characterized in that the melt supply line (7) can be closed in the melt container (1) with respect to the inlet opening by a stopper (6). The device described in. 11. The molten metal supply pipe (7) has two parts standing approximately perpendicular to each other, one part is connected to the mold,
11. Device according to one of claims 7 to 10, characterized in that the other part is connected to a melt container.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT2060/84 | 1984-06-26 | ||
| AT206084A AT387165B (en) | 1984-06-26 | 1984-06-26 | DEVICE FOR CONTINUOUSLY METALLIC MELTING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS619946A true JPS619946A (en) | 1986-01-17 |
Family
ID=3526920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12640085A Pending JPS619946A (en) | 1984-06-26 | 1985-06-12 | Method and device for continuously casting metallic molten metal |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0166718B1 (en) |
| JP (1) | JPS619946A (en) |
| AT (1) | AT387165B (en) |
| DE (1) | DE3570613D1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6298899B1 (en) * | 1999-07-13 | 2001-10-09 | Ford Global Tech., Inc. | Water jacket core |
| CN115717208B (en) * | 2021-08-24 | 2024-05-24 | 昆山晶微新材料研究院有限公司 | Aviation aluminum alloy material and production method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49134527A (en) * | 1972-11-06 | 1974-12-25 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1508799B1 (en) * | 1965-10-08 | 1971-09-16 | Calderon Wellman Ltd | DEVICE FOR FEEDING A STEEL MELT TO CONTINUOUS CASTING CHILLES |
| DE1758575A1 (en) * | 1967-06-29 | 1971-02-11 | Koppers Co Inc | Method and device for producing a cast metal strand |
| CH558223A (en) * | 1973-08-07 | 1975-01-31 | Fischer Ag Georg | PROCESS FOR SEPARATING SLAG AND OTHER CONTAMINATION FROM METAL MELT IN CONTINUOUS CASTING PLANTS AND CONTINUOUS CASTING PLANT FOR PERFORMING THE PROCESS. |
| DE2342820B1 (en) * | 1973-08-24 | 1974-08-15 | Kloeckner Werke Ag | Immersion nozzle for a continuous casting mold |
| CH604956A5 (en) * | 1974-12-24 | 1978-09-15 | Fischer Ag Georg | Runner system for vertically split casting moulds |
| US4202397A (en) * | 1975-01-20 | 1980-05-13 | Bethlehem Steel Corporation | Method of continuously casting molten metal |
| NL7700977A (en) * | 1976-02-24 | 1977-08-26 | Alusuisse | METHOD AND DEVICE FOR CONTINUOUS CASTING OF METAL MELT IN CASTING MOLDS. |
| AT343839B (en) * | 1976-08-20 | 1978-06-26 | Voest Ag | METHOD AND DEVICE FOR CONTINUOUS CASTING OF A STEEL STRAND |
| SE410284B (en) * | 1978-02-10 | 1979-10-08 | Asea Ab | PROCEDURE FOR REMOVAL OF METALLIC MELT AND DEVICE FOR IMPLEMENTATION OF THIS PROCEDURE |
| DE2825360C2 (en) * | 1978-06-09 | 1983-10-27 | Fried. Krupp Gmbh, 4300 Essen | Induction heated trough for feeding metal into a continuous casting mold |
-
1984
- 1984-06-26 AT AT206084A patent/AT387165B/en not_active IP Right Cessation
-
1985
- 1985-06-12 JP JP12640085A patent/JPS619946A/en active Pending
- 1985-06-25 EP EP19850890141 patent/EP0166718B1/en not_active Expired
- 1985-06-25 DE DE8585890141T patent/DE3570613D1/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49134527A (en) * | 1972-11-06 | 1974-12-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0166718A2 (en) | 1986-01-02 |
| EP0166718B1 (en) | 1989-05-31 |
| ATA206084A (en) | 1988-05-15 |
| EP0166718A3 (en) | 1986-09-17 |
| AT387165B (en) | 1988-12-12 |
| DE3570613D1 (en) | 1989-07-06 |
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