JPH1128550A - Mold for continuous casting and method for changing width at the time of continuous casting - Google Patents
Mold for continuous casting and method for changing width at the time of continuous castingInfo
- Publication number
- JPH1128550A JPH1128550A JP18253397A JP18253397A JPH1128550A JP H1128550 A JPH1128550 A JP H1128550A JP 18253397 A JP18253397 A JP 18253397A JP 18253397 A JP18253397 A JP 18253397A JP H1128550 A JPH1128550 A JP H1128550A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- continuous casting
- long side
- thickness
- inlet
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、断面形状が矩形
で、短辺側の冷却面を長辺側の冷却面で挟み込む構造の
連続鋳造用鋳型、及び、この鋳型を用いて連続鋳造時に
幅替えする方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous casting mold having a rectangular cross section and a structure in which a cooling surface on a short side is sandwiched between cooling surfaces on a long side, and a width in continuous casting using the mold. It is about the method of changing.
【０００２】[0002]
【従来の技術】通常の矩形断面の連続鋳造用鋳型におい
ては、冷却面は、図４に示すように、長辺側、短辺側を
問わず、入口から出口に至る全領域において湾曲や折曲
部のない平面で形成されており、長辺１と短辺２のなす
角度θは９０°に設定されている。また、ビレット用の
連続鋳造機の場合や、矩形チューブの鋳型の場合も、そ
れぞれの二辺のなす角度は９０°に設定するのが普通で
ある。2. Description of the Related Art In a continuous casting mold having a normal rectangular cross section, as shown in FIG. 4, the cooling surface is curved or folded over the entire area from the entrance to the exit irrespective of the long side or the short side. It is formed of a plane without a curved portion, and the angle θ between the long side 1 and the short side 2 is set to 90 °. In the case of a continuous casting machine for billets and the case of a rectangular tube mold, the angle between the two sides is usually set to 90 °.
【０００３】ところで、連続鋳造では、通常、鋳型コー
ナー部分における凝固は、隣合う両辺からの冷却によっ
て進行するので、鋳片コーナー部分の角度は９０°以下
になって、鋳型と接触しない部分ができる。この現象
は、鋳造速度が比較的低速の場合には、鋳片の断面形状
が悪くなるという問題以外には大きな問題を生じない
が、鋳造速度が高速になってくると、接触していない部
分に表面割れを生じたり、その部分のシェルが破断し、
いわゆるブレークアウトが発生するという問題があっ
た。[0003] In continuous casting, since the solidification at the corner of the mold usually proceeds by cooling from both sides adjacent to each other, the angle of the corner of the slab becomes 90 ° or less, and a part that does not come into contact with the mold is formed. . This phenomenon does not cause any serious problems except that the cross-sectional shape of the slab becomes poor when the casting speed is relatively low. Surface cracks or the shell of that part breaks,
There is a problem that a so-called breakout occurs.
【０００４】このような問題を解決するために、特開平
４−３１９０４４号では、ビレットの連続鋳造機用鋳型
において、入口におけるコーナー部分の角度を９０°以
上となし、かつ、出口におけるコーナー部分の角度が９
０°になるように、入口から出口に向けてコーナー部分
の角度を連続的に９０°に近づけてゆくものが提案され
ている。In order to solve such a problem, Japanese Patent Application Laid-Open No. Hei 4-319044 discloses that in a billet for a continuous casting machine of a billet, the angle of the corner at the inlet is 90 ° or more, and the angle of the corner at the outlet is increased. Angle 9
There has been proposed a device in which the angle of the corner portion is continuously made closer to 90 ° from the inlet to the outlet so that the angle becomes 0 °.
【０００５】[0005]
【発明が解決しようとする課題】前記特開平４−３１９
０４４号で提案された鋳型を使用した場合には、ビレッ
トを連続鋳造する場合における鋳造速度の高速化に貢献
できるものの、鋳型コーナー部分の角度を９０°以上か
ら９０°まで連続的に変化させるために、短辺のみなら
ず長辺の形状をも変化させているので、いわゆるスラブ
を連続鋳造する場合に使用する矩形形状をした鋳型、す
なわち、短辺側の冷却面を長辺側の冷却面で挟み込む構
造の鋳片幅可変型鋳型においては、採用できなかった。SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. 4-319 is disclosed.
In the case of using the mold proposed in No. 044, although it can contribute to an increase in casting speed in the case of continuous casting of a billet, it is necessary to continuously change the angle of the corner of the mold from 90 ° or more to 90 °. In addition, since the shape of not only the short side but also the long side is changed, a so-called rectangular mold used when continuously casting a slab, that is, the cooling surface on the short side is replaced with the cooling surface on the long side. In a mold with a variable slab width that is sandwiched between the molds, it cannot be adopted.
【０００６】本発明は、上記した従来の問題点に鑑みて
なされたものであり、断面形状が矩形で、短辺側の冷却
面を長辺側の冷却面で挟み込む構造の連続鋳造用鋳型を
用いて、いわゆるスラブを高速で連続鋳造する場合にお
いても、鋳型のコーナー部近傍で鋳型と鋳片とが常に接
触するような鋳型及びこの鋳型を用いた連続鋳造時の幅
替え方法を提供することを目的としている。The present invention has been made in view of the above-mentioned conventional problems, and has a rectangular cross-sectional shape, and a continuous casting mold having a structure in which a cooling surface on a short side is sandwiched between cooling surfaces on a long side. To provide a mold in which the mold and the slab are always in contact with each other in the vicinity of the corner of the mold even when continuously casting a so-called slab at a high speed, and to provide a width changing method at the time of continuous casting using the mold. It is an object.
【０００７】[0007]
【課題を解決するための手段】上記した目的を達成する
ために、本発明の連続鋳造用鋳型は、短辺側の冷却面入
口における幅方向中央部の厚さが長辺側部分の厚さより
小さくなるように、入口に湾曲や折曲部を設けると共
に、この湾曲や折曲部が、出口部では、入口における長
辺側部分の厚さより若干大きい厚さで、湾曲や折曲部の
ない平面になるように、徐々に変化させることとしてい
る。そして、このように短辺の形状のみ変化させること
で、鋳型コーナー部分の角度を９０°以上〜９０°まで
変化させられると共に、鋳片の幅替えをも可能とするこ
とができる。In order to achieve the above-mentioned object, a continuous casting mold according to the present invention is characterized in that the thickness at the center in the width direction at the cooling surface inlet on the short side is greater than the thickness at the long side. A curved or bent portion is provided at the entrance so as to be smaller, and the curved or bent portion has a thickness slightly larger than the thickness of the long side portion at the entrance at the outlet portion, and has no curved or bent portion. It is to be gradually changed so that it becomes a plane. By changing only the shape of the short side in this way, the angle of the corner portion of the mold can be changed from 90 ° to 90 °, and the width of the slab can be changed.
【０００８】[0008]
【発明の実施の形態】鋳型コーナー部分の角度を９０°
以上〜９０°まで変化させる技術は、従来から実施され
ていた。しかしながら、従来より実施されていた技術
は、鋳型の長辺と短辺の両形状を変化させることによ
り、コーナー部分の角度を変化させていたので、幅替え
を行うことが前提となっているスラブを連続鋳造するた
めの鋳型については適用することができなかった。BEST MODE FOR CARRYING OUT THE INVENTION The angle of a corner of a mold is 90 °.
The technique of changing the angle up to 90 ° has been conventionally implemented. However, in the technology that has been conventionally implemented, the angle of the corner portion is changed by changing both the long side and the short side of the mold, so it is premised that the width is changed. Cannot be applied to a mold for continuous casting of.
【０００９】そこで、本発明者らは、鋳型コーナー部分
における角度変化と、幅替えを同時に可能とする技術に
ついて、種々検討した結果、短辺の形状のみ変化させる
ことで、長辺側の冷却面にも影響を与えることができる
ことを知見し、以下のような本発明を完成させた。The inventors of the present invention have studied various techniques for simultaneously changing the angle at the corner of the mold and changing the width. As a result, by changing only the shape of the short side, the cooling surface on the long side is changed. It has been found that the present invention can also influence the present invention, and the present invention as described below has been completed.
【００１０】すなわち、本発明の連続鋳造用鋳型は、断
面形状が矩形で、短辺側の冷却面を長辺側の冷却面で挟
み込む構造の連続鋳造用鋳型であって、長辺側の冷却面
は入口から出口に至る全領域において湾曲や折曲部のな
い平面で形成され、一方、短辺側の冷却面は、入口にお
ける幅方向中央部の厚さが長辺側部分の厚さより小さく
なるように、入口に湾曲や折曲部を設け、かつ、この湾
曲や折曲部が、出口部では、入口における長辺側部分の
厚さより若干大きい厚さで、湾曲や折曲部のない平面に
なるように、徐々に変化させているのである。That is, the continuous casting mold of the present invention is a continuous casting mold having a rectangular cross section and a structure in which the cooling surface on the short side is sandwiched by the cooling surface on the long side. The surface is formed as a flat surface without curved or bent parts in the entire area from the inlet to the outlet, while the cooling surface on the short side has a thickness at the center in the width direction at the inlet smaller than the thickness at the long side. The entrance has a curved or bent portion, and the curved or bent portion has a thickness slightly larger than the thickness of the long side portion at the entrance at the outlet portion, and has no curved or bent portion. It is gradually changed to become a plane.
【００１１】上記した本発明の連続鋳造用鋳型では、短
辺においては、入口側に比べて出口側の方が短辺側の冷
却面の長さが短くなる。従来より、短辺の冷却面の長さ
は、鋳込み方向に沿って凝固収縮を補償するために短く
することが実施されている。従って、短辺の冷却面にお
ける入口と出口の長さの差を鋳片の凝固収縮量に合わせ
ておけば、短辺の冷却面によって形成される凝固シェル
は、鋳型から余分な力を受けることなく凝固するように
なる。In the continuous casting mold of the present invention described above, the cooling surface on the short side is shorter on the outlet side than on the inlet side on the short side. Conventionally, the length of the cooling surface on the short side has been reduced to compensate for solidification shrinkage along the casting direction. Therefore, if the difference between the length of the inlet and the outlet at the cooling surface on the short side is adjusted to the solidification shrinkage of the slab, the solidified shell formed by the cooling surface on the short side receives extra force from the mold. Will be solidified without any treatment.
【００１２】また、本発明の連続鋳造用鋳型では、長辺
の冷却面によって凝固した凝固シェルにおける凝固収縮
の補償は、長辺の冷却面の長さを、入口より出口が短く
なるようにすることで、対応している。この長辺の冷却
面長さの変化範囲は、直線的に変化させても、また、よ
り効果を発揮させようとすれば、凝固収縮量に可能な限
り近づけるように放物線的に変化させてもよい。In the continuous casting mold of the present invention, the solidification shrinkage of the solidified shell solidified by the cooling surface on the long side is compensated by setting the length of the cooling surface on the long side to be shorter at the outlet than at the inlet. By that, it corresponds. The change range of the cooling surface length on the long side may be changed linearly, or, if the effect is to be more exerted, parabolically changed so as to be as close as possible to the solidification shrinkage amount. Good.
【００１３】また、本発明の連続鋳造用鋳型において、
短辺側の冷却面入口に設ける湾曲や折曲部は、入口にお
ける幅方向中央部の厚さが長辺側部分の厚さより小さく
なるものであるならば、１段に限らず、複数段にしても
よい。[0013] In the continuous casting mold of the present invention,
The curved or bent portion provided at the inlet of the cooling surface on the short side is not limited to one step, but may be formed in a plurality of steps if the thickness of the central part in the width direction at the inlet is smaller than the thickness of the long side part. You may.
【００１４】上記した本発明の連続鋳造用鋳型を使用し
た場合には、鋳込み中に鋳型の両短辺を接離移動させる
ことができるので、この両短辺の接離移動により長辺長
さが変化し、連続鋳造時の幅替えが可能となる。When the continuous casting mold of the present invention described above is used, both short sides of the mold can be moved toward and away during casting. And the width can be changed during continuous casting.
【００１５】[0015]
【実施例】以下、本発明の連続鋳造用鋳型を図１〜図３
に示す実施例に基づいて説明し、この鋳型を用いて連続
鋳造時に幅替えを行う方法に及ぶ。図１（ａ）〜（ｃ）
は本発明の連続鋳造用鋳型を平面方向から見た、左部分
の図面で、（ａ）は湾曲部を設けたもの、（ｂ）は折曲
部を１か所設けた直線１段階変化のもの、（ｃ）は折曲
部を２か所設けた直線２段階変化のもの、（ｄ）は平面
視が（ａ）〜（ｃ）に示す形状の本発明の連続鋳造用鋳
型を底面方向から見た左部分の図面、図２は平面視が図
１（ａ）で、底面視が図１（ｄ）に示す本発明の連続鋳
造用鋳型を構成する片側の短辺のみを示した図で、
（ａ）は平面図、（ｂ）は正面図、図３は本発明の連続
鋳造用鋳型を構成する片側の長辺のみを示した図で、
（ａ）は平面図、（ｂ）は正面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The continuous casting mold of the present invention is shown in FIGS.
The present invention will be described based on the embodiment shown in FIG. 1 (a) to 1 (c)
Fig. 2 is a drawing of the left part of the continuous casting mold of the present invention viewed from the plane, in which (a) is provided with a curved portion, and (b) is a linear one-step change having one bent portion. (C) is a straight-line two-step change having two bent portions, and (d) is a bottom view of the continuous casting mold of the present invention having a shape shown in (a) to (c) in plan view. FIG. 2 is a plan view of FIG. 1 (a), and FIG. 2 is a plan view showing only one short side of the continuous casting mold of the present invention shown in FIG. 1 (d). so,
(A) is a plan view, (b) is a front view, and FIG. 3 is a view showing only one long side constituting the continuous casting mold of the present invention,
(A) is a plan view and (b) is a front view.
【００１６】図１〜図３において、１１は断面形状が矩
形の本発明に係る連続鋳造用鋳型であり、短辺１２側の
冷却面１２ａを、長辺１３側の冷却面１３ａで挟み込む
構造となっている。そして、このうち、長辺１３側の冷
却面１３ａは、図３に示すように、冷却面１３ａの入口
１３ａａから出口１３ａｂに至る全領域において湾曲や
折曲部のない平面で形成されている。1 to 3, reference numeral 11 denotes a continuous casting mold according to the present invention having a rectangular cross-section, and has a structure in which a cooling surface 12 a on a short side 12 is sandwiched by a cooling surface 13 a on a long side 13. Has become. As shown in FIG. 3, the cooling surface 13a on the long side 13 side is formed as a flat surface having no curved portion or bent portion in the entire region from the inlet 13aa to the outlet 13ab of the cooling surface 13a.
【００１７】一方、短辺１２側の冷却面１２ａは、例え
ば図２に示すように、冷却面１２ａの入口１２ａａにお
ける幅方向中央部の厚さｔ1 が長辺側部分の厚さｔ2 よ
りも小さくなるように、入口１２ａａに、例えば図１
（ａ）に示すような湾曲１２ｂを設けたり、また、図１
（ｂ）に示すように折曲部１２ｃを１段設けたり、ま
た、図１（ｃ）に示すように折曲部１２ｃを２段設け、
かつ、この湾曲１２ｂや折曲部１２ｃが、出口１２ａｂ
部では、入口１２ａａにおける長辺側部分の厚さｔ 2 よ
り若干大きい厚さｔ3 で、湾曲や折曲部のない平面にな
るように、例えば直線状に徐々に変化させている。On the other hand, the cooling surface 12a on the short side 12 side is, for example,
For example, as shown in FIG. 2, the inlet 12aa of the cooling surface 12a
Thickness t at the center in the width direction1Is the thickness t of the long sideTwoYo
As shown in FIG.
A curve 12b as shown in FIG.
As shown in (b), a single bent portion 12c may be provided,
Further, as shown in FIG. 1 (c), two bent portions 12c are provided,
The curved portion 12b and the bent portion 12c are connected to the outlet 12ab.
In the portion, the thickness t of the long side portion at the entrance 12aa TwoYo
Slightly larger thickness tThreeTo a flat surface with no curved or bent parts.
Thus, for example, it is gradually changed linearly.
【００１８】上記した本発明の連続鋳造用鋳型１１で
は、短辺１２の冷却面１２ａにおける幅方向の長さは、
入口１２ａａと出口１２ａｂとで異なり、入口１２ａａ
の方が長くなるが、この長さの差を凝固収縮量に合わせ
ておけば、短辺１２の冷却面１２ａによって形成される
凝固シェルは、短辺１２から余分な力を受けずに凝固す
る。In the continuous casting mold 11 of the present invention described above, the length of the short side 12 in the width direction on the cooling surface 12a is:
The inlet 12aa is different from the outlet 12ab, and the inlet 12aa
However, if this difference in length is adjusted to the amount of solidification shrinkage, the solidified shell formed by the cooling surface 12a of the short side 12 solidifies without receiving extra force from the short side 12. .
【００１９】また、長辺１３の冷却面１３ａにおける幅
方向の長さも、入口１３ａａと出口１３ａｂとで異な
り、入口１３ａａの方が長くなるが、この長さの差も短
辺１２の場合と同様に凝固収縮量に合わせておけば、長
辺１３の冷却面１３ａによって形成される凝固シェル
は、長辺１３から余分な力を受けずに凝固する。The length of the long side 13 in the width direction on the cooling surface 13a is also different between the inlet 13aa and the outlet 13ab. The inlet 13aa is longer, but the difference in length is the same as that of the short side 12. If the solidification shrinkage amount is adjusted to the amount, the solidified shell formed by the cooling surface 13 a of the long side 13 solidifies without receiving an extra force from the long side 13.
【００２０】そして、上記した本発明の連続鋳造用鋳型
１１を使用した場合には、鋳込み中に両短辺１２を接離
移動させて長辺１３の長さを変化させれば、連続鋳造時
の幅替えが行える。When the continuous casting mold 11 of the present invention described above is used, both short sides 12 are moved toward and away during casting to change the length of the long side 13, so that continuous casting can be performed. Width can be changed.
【００２１】以下に、本発明の効果を確認するために行
った実験結果について説明する。鋳造は、下記表１に示
した化学成分の亜包晶鋼を、垂直式連続鋳造機に供給
し、４．０ｍ／分の速度で行った。鋳型サイズは鋳型の
出口で１２００ｍｍ×１５０ｍｍであり、鋳型の入口に
おける短辺形状は、図１（ａ）〜（ｃ）に示す形状のも
のと、通常の平面形状のもの、４種類を使用した。図１
（ａ）〜（ｃ）に示す形状の短辺の場合、ｔ2 −ｔ1 は
１０ｍｍとし、図１（ａ）に示す形状の鋳型について
は、ｔ2 −ｔ1 は５ｍｍと１５ｍｍの場合のものも使用
した。また、短辺と長辺の冷却面における幅方向の長さ
の入口と出口との差は、共に１ｍ当たり１％の直線状の
テーパとした。Hereinafter, the results of experiments performed to confirm the effects of the present invention will be described. The casting was performed by supplying a hypoperitectic steel having the chemical composition shown in Table 1 below to a vertical continuous caster at a speed of 4.0 m / min. The size of the mold was 1200 mm × 150 mm at the exit of the mold, and four types of short sides at the entrance of the mold were used, as shown in FIGS. . FIG.
In the case of the short side of the shape shown in (a) to (c), t 2 -t 1 is set to 10 mm, and for the mold having the shape shown in FIG. 1A, t 2 -t 1 is 5 mm and 15 mm. Some were also used. Further, the difference between the inlet and the outlet in the width direction on the cooling surface on the short side and the long side was a linear taper of 1% per 1 m.
【００２２】[0022]
【表１】 [Table 1]
【００２３】以上の６種類の鋳型を用いて鋳造した場合
の結果を説明する。操業状況については、いずれの鋳型
を使用した場合も操業上特に問題を生じなかったが、従
来例である短辺形状が平面の鋳型を使用した場合には、
１０回の鋳造試験の結果、２回のブレークアウトが発生
した。この場合のブレークアウトは、割れ性のブレーク
アウトであり、その発生位置は、長辺における短辺より
の位置であった。そして、ブレークアウト部分には、ブ
レークアウトが発生するまでの間に無数のコーナー縦割
れが発生していた。The results when casting is performed using the above six types of molds will be described. Regarding the operation situation, no particular problem occurred in operation when using any of the molds, but in the case of using a mold with a short side shape which is a conventional example,
As a result of the ten casting tests, two breakouts occurred. The breakout in this case was a breakable breakout, and the occurrence position was a position on the long side from the short side. In the breakout portion, countless corner vertical cracks occurred before the breakout occurred.
【００２４】すなわち、従来例の鋳型を使用した場合に
は、長辺のコーナー近傍における鋳型と凝固シェルとの
接触不良によって、ディプレッション並びに縦割れが発
生し、最後にはブレークアウトに至ったものと考えられ
る。ディプレッションの状況並びに縦割れの発生率を下
記表２に示す。That is, when the conventional mold is used, depletion and vertical cracking occur due to poor contact between the mold and the solidified shell near the corner of the long side, and finally breakout occurs. Conceivable. Table 2 shows the state of depletion and the rate of occurrence of vertical cracks.
【００２５】[0025]
【表２】 [Table 2]
【００２６】上記表２に示すように、本発明の鋳型を使
用した場合には、問題になるほどの縦割れは皆無であ
り、１ｃｍ程度の割れが散見されるにすぎなかった。一
方、従来の鋳型を使用した場合には、ディプレッション
が発生し、全長にわたる縦割れが発生した。さらに、前
述したように、ブレークアウトも発生した。As shown in Table 2 above, when the mold of the present invention was used, there were no longitudinal cracks to cause a problem, and cracks of only about 1 cm were found. On the other hand, when the conventional mold was used, depletion occurred, and vertical cracks occurred over the entire length. In addition, breakouts also occurred, as described above.
【００２７】また、ｔ2 −ｔ1 が１０ｍｍの図１（ａ）
〜（ｃ）に示す短辺形状のものを使用して４．０ｍ／分
の速度で連続鋳造した場合、最大２０ｍ／分の速度で１
００ｍｍの幅を縮小させることができた。FIG. 1A in which t 2 -t 1 is 10 mm.
When continuous casting is performed at a speed of 4.0 m / min using the short side shape shown in FIGS.
The width of 00 mm could be reduced.
【００２８】[0028]
【発明の効果】以上説明したように、本発明によれば、
長辺のコーナーよりの位置における鋳型と凝固シェルと
の接触が良くなり、この部分での凹みやブレークアウト
の発生を防止することができた。さらに、この鋳型を用
いて、連続鋳造中における幅替えも行うことができるよ
うになった。As described above, according to the present invention,
The contact between the mold and the solidified shell at a position from the corner of the long side was improved, and the occurrence of dents and breakouts at this portion could be prevented. Further, the width can be changed during continuous casting using the mold.
【図１】（ａ）〜（ｃ）は本発明の連続鋳造用鋳型を平
面方向から見た、左部分の図面で、（ａ）は湾曲部を設
けたもの、（ｂ）は折曲部を１か所設けた直線１段階変
化のもの、（ｃ）は折曲部を２か所設けた直線２段階変
化のもの、（ｄ）は平面視が（ａ）〜（ｃ）に示す形状
の本発明の連続鋳造用鋳型を底面方向から見た左部分の
図面である。1 (a) to 1 (c) are drawings of a left portion of a continuous casting mold of the present invention viewed from a plane direction, where (a) is provided with a curved portion, and (b) is a bent portion. (C) is a two-step straight line with two bent portions, and (d) is a shape shown in (a) to (c) in plan view. 1 is a drawing of a left portion of the continuous casting mold of the present invention viewed from the bottom direction.
【図２】平面視が図１（ａ）で、底面視が図１（ｄ）に
示す本発明の連続鋳造用鋳型を構成する片側の短辺のみ
を示した図で、（ａ）は平面図、（ｂ）は正面図であ
る。2 (a) is a plan view, and FIG. 1 (d) is a bottom view showing only one short side of the continuous casting mold of the present invention shown in FIG. 1 (d). FIG. 2B is a front view.
【図３】本発明の連続鋳造用鋳型を構成する片側の長辺
のみを示した図で、（ａ）は平面図、（ｂ）は正面図で
ある。3A and 3B are diagrams showing only one long side of the continuous casting mold of the present invention, wherein FIG. 3A is a plan view and FIG. 3B is a front view.
【図４】断面形状が矩形で、短辺側の冷却面を長辺側の
冷却面で挟み込む構造の、従来の連続鋳造用鋳型の図
で、（ａ）は平面図、（ｂ）は正面図である。FIG. 4 is a view of a conventional continuous casting mold having a rectangular cross-section and a structure in which a cooling surface on a short side is sandwiched between cooling surfaces on a long side, (a) is a plan view, and (b) is a front view. FIG.
１１ 鋳型 １２ 短辺 １２ａ 冷却面 １２ａａ 入口 １２ａｂ 出口 １２ｂ 湾曲 １２ｃ 折曲部 １３ 長辺 １３ａ 冷却面 １３ａａ 入口 １３ａｂ 出口 DESCRIPTION OF SYMBOLS 11 Mold 12 Short side 12a Cooling surface 12aa Inlet 12ab Exit 12b Curved 12c Bending part 13 Long side 13a Cooling surface 13aa Inlet 13ab Exit
フロントページの続き (72)発明者 谷澤 好徳 大阪府大阪市中央区北浜４丁目５番33号 住友金属工業株式会社内 (72)発明者 花尾 方史 大阪府大阪市中央区北浜４丁目５番33号 住友金属工業株式会社内 (72)発明者 熊倉 誠治 大阪府大阪市中央区北浜４丁目５番33号 住友金属工業株式会社内 (72)発明者 池田 正裕 愛媛県新居浜市惣開町５番２号 住友重機 械工業株式会社新居浜製造所内Continued on the front page (72) Inventor Yoshinori Tanizawa 4-5-33 Kitahama, Chuo-ku, Osaka-shi, Osaka Inside Sumitomo Metal Industries, Ltd. (72) Inventor Masafumi Hanao 4-5-33 Kitahama, Chuo-ku, Osaka, Osaka No. within Sumitomo Metal Industries, Ltd. (72) Inventor Seiji Kumakura 4-33, Kitahama, Chuo-ku, Osaka City, Osaka Prefecture Inside Sumitomo Metal Industries, Ltd. (72) Inventor, Masahiro Ikeda 5-2 Sokaicho, Niihama-shi, Ehime Prefecture Sumitomo Heavy Industries, Ltd. Niihama Works
Claims (2)
辺側の冷却面で挟み込む構造の連続鋳造用鋳型であっ
て、長辺側の冷却面は入口から出口に至る全領域におい
て湾曲や折曲部のない平面で形成され、一方、短辺側の
冷却面は、入口における幅方向中央部の厚さが長辺側部
分の厚さより小さくなるように、入口に湾曲や折曲部を
設け、かつ、この湾曲や折曲部が、出口側では、入口に
おける長辺側部分の厚さより若干大きい厚さで、湾曲や
折曲部のない平面になるように、徐々に変化させたこと
を特徴とする連続鋳造用鋳型。1. A continuous casting mold having a rectangular cross-section and a structure in which a cooling surface on a short side is sandwiched between cooling surfaces on a long side, wherein the cooling surface on the long side is an entire region from an inlet to an outlet. On the other hand, the cooling surface on the short side is bent or folded at the entrance so that the thickness at the center in the width direction at the entrance is smaller than the thickness at the long side. A curved portion is provided, and the curved portion or the bent portion gradually changes on the exit side so that the thickness is slightly larger than the thickness of the long side portion at the entrance and has no curved portion or the bent portion. A casting mold for continuous casting, characterized in that:
る際、鋳込み中に両短辺を接離移動させて長辺長さを変
化させることを特徴とする連続鋳造時の幅替え方法。2. A continuous casting method using the mold according to claim 1, wherein both short sides are moved toward and away from each other during casting to change the length of a long side. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18253397A JP3174016B2 (en) | 1997-07-08 | 1997-07-08 | Continuous casting mold and width changing method during continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18253397A JP3174016B2 (en) | 1997-07-08 | 1997-07-08 | Continuous casting mold and width changing method during continuous casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1128550A true JPH1128550A (en) | 1999-02-02 |
| JP3174016B2 JP3174016B2 (en) | 2001-06-11 |
Family
ID=16119976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18253397A Expired - Fee Related JP3174016B2 (en) | 1997-07-08 | 1997-07-08 | Continuous casting mold and width changing method during continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3174016B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009062968A2 (en) * | 2007-11-15 | 2009-05-22 | Thyssenkrupp Steel Ag | Mould of adjustable width |
| WO2010090310A1 (en) | 2009-02-09 | 2010-08-12 | 東邦チタニウム株式会社 | Hot-rolled titanium slab melted by electronbeam melting furnace, method of melting and method of hot-rolling titan slab |
| US7879151B2 (en) | 2003-10-21 | 2011-02-01 | Applied Materials, Inc. | Mask etch processing apparatus |
| JP2016007631A (en) * | 2014-06-25 | 2016-01-18 | 新日鐵住金株式会社 | Steel continuous casting equipment |
-
1997
- 1997-07-08 JP JP18253397A patent/JP3174016B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7879151B2 (en) | 2003-10-21 | 2011-02-01 | Applied Materials, Inc. | Mask etch processing apparatus |
| WO2009062968A2 (en) * | 2007-11-15 | 2009-05-22 | Thyssenkrupp Steel Ag | Mould of adjustable width |
| WO2009062968A3 (en) * | 2007-11-15 | 2009-07-30 | Thyssenkrupp Steel Ag | Mould of adjustable width |
| DE102007054911B4 (en) * | 2007-11-15 | 2015-02-05 | Thyssenkrupp Steel Europe Ag | Width-adjustable mold and method for producing a hot strip |
| WO2010090310A1 (en) | 2009-02-09 | 2010-08-12 | 東邦チタニウム株式会社 | Hot-rolled titanium slab melted by electronbeam melting furnace, method of melting and method of hot-rolling titan slab |
| US9962760B2 (en) | 2009-02-09 | 2018-05-08 | Toho Titanium Co., Ltd. | Titanium slab for hot rolling produced by electron-beam melting furnace, process for production thereof, and process for rolling titanium slab for hot rolling |
| JP2016007631A (en) * | 2014-06-25 | 2016-01-18 | 新日鐵住金株式会社 | Steel continuous casting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3174016B2 (en) | 2001-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH11179505A (en) | Method for reducing plate thickness during solidifying in high speed continuous casting apparatus and device therefor | |
| JP3174016B2 (en) | Continuous casting mold and width changing method during continuous casting | |
| CA1268314A (en) | Ingot mold for the continuous casting of metal strip | |
| US6308769B1 (en) | Continuous casting plant for casting slabs with a continuous casting mold and a strand guiding unit composed of rollers | |
| JP3246372B2 (en) | Continuous casting of steel | |
| JP3089608B2 (en) | Continuous casting method of beam blank | |
| JPH08238550A (en) | Method for continuously casting steel | |
| WO1999012675A1 (en) | Continuous casting of metal slabs | |
| JPH0444300Y2 (en) | ||
| JPS606254A (en) | Continuous casting method | |
| JP2002035896A (en) | Mold for continuous casting | |
| JP2983152B2 (en) | Continuous casting method and continuous casting equipment | |
| JP2973834B2 (en) | Mold for continuous casting of thin slabs | |
| US6070648A (en) | Method for preventing snaking of continuously cast metal slab | |
| JPS6082257A (en) | Continuous forging method in continuous casting | |
| JP2990555B2 (en) | Continuous casting method | |
| JPH11156511A (en) | Steel slab continuous casting method | |
| JP3267545B2 (en) | Continuous casting method | |
| JPH08257715A (en) | Continuous casting method | |
| RU2216429C2 (en) | Plant for continuous casting of steel ingots | |
| GB2311029A (en) | Continuous casting of metal slabs with concave faces | |
| JPH08257714A (en) | Continuous casting apparatus | |
| JPS633729Y2 (en) | ||
| JP3114679B2 (en) | Continuous casting method | |
| KR100380737B1 (en) | A continuous casting method for reducing corner cracks in slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |