JPS58112638A - Endless track type continuous casting installation - Google Patents
Endless track type continuous casting installationInfo
- Publication number
- JPS58112638A JPS58112638A JP21017681A JP21017681A JPS58112638A JP S58112638 A JPS58112638 A JP S58112638A JP 21017681 A JP21017681 A JP 21017681A JP 21017681 A JP21017681 A JP 21017681A JP S58112638 A JPS58112638 A JP S58112638A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- inclination
- angle
- radius
- changes
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0605—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two belts, e.g. Hazelett-process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、無限軌道でモールドの上下壁面又は上下お
よび両側の壁面を形成する方式の連続鋳造設備に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to continuous casting equipment in which upper and lower wall surfaces or upper and lower and both side wall surfaces of a mold are formed using endless tracks.
従来、この種の薄板連続鋳造設備において、鋳片の引抜
方向に沿って下り勾配の角度をもつように配設されたモ
ールドでは、一旦、その傾斜角度を設定し、後続の鋳片
ガイド部及び引抜矯正装置を設置すると、次にモールド
傾斜角度を変更するには、モールドの傾斜ラインの延長
部と、矯正装置以後のパスラインとに接する滑らかな１
つもしくはそれ以上の半径な有する円弧で連続的な鋳片
ガイドを形成する構成となっているため、傾斜角度の変
更に応じて後続装置の形状、配置等の変更や、鋳片ガイ
ド部の円弧長さを変更する必要があった。Conventionally, in this type of continuous thin plate casting equipment, the mold is arranged so as to have a downward slope along the drawing direction of the slab. Once the pull-out straightening device is installed, to change the mold inclination angle, draw a smooth line that touches the extension of the mold inclination line and the pass line after the straightening device.
Since the structure is such that a continuous slab guide is formed by a circular arc with a radius of 1 or more, it is possible to change the shape and arrangement of the subsequent equipment according to changes in the inclination angle, and the circular arc of the slab guide part. I had to change the length.
これは当該設備の如く、大型の生産設備においては、機
械据付用の基礎部から変更することになり、その作業は
極めて至難であって、そのほとんどの設備では、一旦設
定された傾斜角から変更することができなかった。In large-scale production equipment like the equipment in question, this requires changing the foundation for installing the machine, which is an extremely difficult task, and in most equipment, it is difficult to change the angle of inclination once it has been set. I couldn't.
これをさらに、第１図、第２図に示したこれまでのモー
ルドｌ、鋳片ガイド２および引抜矯正装置３の配置図に
基づいて詳述すると、第１図、第２図に示すようｔこ彎
曲半径Ｒを変えずに、Ｒ１＝Ｒ２の状態でモールド１の
傾斜角度を０１ カラθ２に角度変更を行なった場合ｅ
こは、モールド出口かラタンシェンシャルラインＬｔま
での距離Ｓ ｌハ４Ｓ２に変化するため、タンジェルシ
ャンラインＬｔが移動することになる。 そのため、パ
スラインＬｐのレベルを変える必要が出てくる場合もあ
る。This will be further explained in detail based on the layout diagrams of the conventional mold 1, slab guide 2, and drawing straightening device 3 shown in FIGS. 1 and 2. If the inclination angle of mold 1 is changed to 01 and θ2 with R1=R2 without changing the radius of curvature R, e
Since the distance from the mold exit to the rattan sential line Lt changes to 4S2, the tangential tangential line Lt moves. Therefore, it may be necessary to change the level of the pass line Lp.
又第３図の如く必要以上に彎曲半径ＲをＲ３に変えても
距離ＳはＳａに変わる。距離Ｓが変わると、当然、鋳片
ガイド部２や引抜矯正装置３のロール数も変わり装置全
体の取替えが必要となる。Also, as shown in FIG. 3, even if the radius of curvature R is changed to R3 more than necessary, the distance S changes to Sa. If the distance S changes, naturally the number of rolls in the slab guide section 2 and the drawing straightening device 3 will also change, making it necessary to replace the entire device.
一般にこの種のモールドにおいて、アルミニウムや銅等
の低融点温度の非鉄金属が薄板に鋳込まれると、その鋳
込み速度にもよるが、はとんどはモールド内部又は曲げ
点ａ以前に完全凝固となり、それ以後のある限界値以下
の曲げに対しては、内部品質的にも問題とならない。
しかしながら鋼のようｔこ融点温度が高く、かつ熱伝導
率の低い金属を鋳込む場合？こは、凝固速度も遅く、自
ずからモールＦ内だけでは完全凝固とはならず、引抜矯
正装置以後まで未凝固部分が残ることになる。Generally, in this type of mold, when a non-ferrous metal with a low melting point such as aluminum or copper is cast into a thin plate, it will most likely completely solidify inside the mold or before bending point a, depending on the casting speed. , for bending below a certain limit after that, there will be no problem in terms of internal quality.
However, when casting a metal such as steel, which has a high melting point temperature and low thermal conductivity? The solidification rate is also slow, and complete solidification does not occur only within the molding F, and an unsolidified portion remains until after the drawing straightening device.
この場合、未凝固界面に内部歪が生ずる。 この発生原
因の１つとして挙げられていることは周知の通りである
。In this case, internal strain occurs at the unsolidified interface. It is well known that this is cited as one of the causes of this occurrence.
既知の文献によると、この歪量εは次式（第６図参照）
によって表わされる
ε＝−−τＸ１００％ ・・・ （１）Ｒ−。According to known literature, this amount of strain ε is expressed by the following formula (see Figure 6):
ε=−−τX100% (1) R−.
並で、Ｂは鋳片厚さ、ｄは凝固殻厚さ、Ｒは曲げ半径を
示す。B is the slab thickness, d is the solidified shell thickness, and R is the bending radius.
また鋳片の外表面ｔこ生ずる歪量εは次式によって表わ
される。Further, the amount of strain ε generated on the outer surface of the slab is expressed by the following equation.
ε＝ −ｘ ｔ ｏ ｏ （％）・・・ （２）Ｒ−
Ｂ
そしてこの値のある限度以上の発生は鋳片外表面での割
れをきたすことになる。ε= -xt o (%)... (2) R-
B If this value exceeds a certain limit, cracks will occur on the outer surface of the slab.
式（１） ｌ （２）によって算出される歪量εは、彎
曲半径Ｒが小さくなり、又凝固殻の厚さｄが厚くなるほ
ど大きくなるものである。 しかしながら当該無限軌
道式連続鋳造機で鋳込まれるような薄板の鋳片において
は、彎曲半径Ｒを可成り小さくしても、それ１こよって
生ずる歪量が一般ｔこ言われている内部割れや、外表面
割れを生ずる限界歪量に比べ、鋳片厚さが薄いことから
前記式（１） Ｉ （２）にて算出された計算値よりを
よるかに、小さいものである。The amount of strain ε calculated by equation (1) l (2) increases as the radius of curvature R becomes smaller and as the thickness d of the solidified shell increases. However, in the case of thin plate slabs that are cast by the continuous track type continuous casting machine, even if the radius of curvature R is made quite small, the amount of distortion caused by it is generally large enough to cause the so-called internal cracks. Since the thickness of the slab is thinner than the critical amount of strain that causes outer surface cracking, it is much smaller than the calculated value calculated using the above formula (1) I (2).
本発明はかかる観点に基づき、モールドｌの出口からタ
ンジエンシャルラインＬｔ までの距離Ｓを一定ｅこ保
つために５円弧部の彎曲半径Ｒをモールドｌの傾斜角θ
の変更分に応じて変えることにより、前記した従来の問
題点を解決したものである。Based on this point of view, the present invention has been developed by changing the radius of curvature R of the five circular arcs to the inclination angle θ of the mold l in order to maintain a constant distance S from the exit of the mold l to the tangential line Lt.
The above-mentioned conventional problems are solved by changing it according to the amount of change.
第４図と第５図は本発明ｔこよる円弧部長さを一定とし
てモールド傾斜角を変化させた場合の実施態様を示した
もので、第４図の１点曲げ１点矯正を行わせる鋳造装置
では、図示実線で示すようなθｌの傾斜角をもつモール
ド１を図示鎖線の如く、その傾斜角をθ４ｅこ変えるに
は、モールドｌの出口からタンジェンシャルラインＬｔ
ｔでの距離スなわち前者の円弧部長さＳｌ と後者の円
弧部長さＳ、とがロール本数又はピッチを変更すること
なく、はぼ等しくなるようｔこ、彎曲半径をモールド傾
斜角の変更分に対応してＲ１からＲ４に一変更可能とし
たものである。Figures 4 and 5 show an embodiment of the present invention in which the length of the circular arc portion is kept constant and the mold inclination angle is varied. In the apparatus, in order to change the inclination angle of the mold 1 having an inclination angle of θl as shown by the solid line in the figure by θ4e as shown in the dashed line in the figure, a tangential line Lt is drawn from the exit of the mold l.
The radius of curvature is adjusted by the change in mold inclination angle so that the distance at t, that is, the former arc length Sl and the latter arc length S, are approximately equal without changing the number of rolls or pitch. In response to this, it is possible to change from R1 to R4.
又第５図の多点曲げ、多点矯正を行わせる鋳造装置では
、前記同様、図示実線位置から鎖線位置に変更した場合
のモールドｌの出口からタンジエンシャルラインＬｔま
での距離８５が、ロール本数又はロールピッチを変更す
ることなく、もとの８１とほぼ等しくなるようにして、
その彎曲部が多数の彎曲半径Ｒ５＋ ”５’ ＋ Ｒ５
’ ・・・にて連続的な円弧となるようにしたもので
ある。In addition, in the casting apparatus that performs multi-point bending and multi-point straightening as shown in FIG. Without changing the number or roll pitch, make it almost equal to the original 81,
The curved portion has a large radius of curvature R5 + "5' + R5
' . . . to form a continuous arc.
なお、Ｓａはモールド出口から曲げ点ａまでの距離を示
す。Note that Sa indicates the distance from the mold exit to the bending point a.
このような手段を施すことにより、連続鋳造設備で最も
重要視される鋳片の完全凝固位置と、鋳片ガイド部２の
曲げ点ａおよび引抜矯正装置３の矯正点し位置との相対
的な位置関係は変ることはない。By implementing such measures, the relative position between the completely solidified position of the slab, which is considered most important in continuous casting equipment, and the bending point a of the slab guide section 2 and the straightening point position of the drawing straightening device 3 can be determined. The positional relationship will not change.
以上の通り本発明によれば、モールドの傾斜角度な鋳込
金属の性状に応じて最適な角度？こ調整変更が容易とな
り、これに伴うモールド以後の装置の配置変更をほとん
ど要しないため、極めて合理的、低コストとなる。As described above, according to the present invention, the angle of inclination of the mold is determined depending on the properties of the cast metal. This adjustment change becomes easy and there is almost no need to change the arrangement of the equipment after the mold, making it extremely rational and low cost.
又、傾斜角を増大した場合、円弧部長さを長くして同じ
ロール本数又はガイド数のままだと、その間隔が引延さ
れることになるが、円弧部長さが一定だとロールピッチ
が一定となるため、溶融金属の静圧の増大によるバルジ
ング量の増大を抑制することができる等、極めて好適な
この種の連続鋳造設備を得ることができる。Also, when increasing the inclination angle, if the length of the arc length is increased and the number of rolls or guides remains the same, the interval will be extended, but if the length of the arc length is constant, the roll pitch will remain constant. Therefore, it is possible to obtain this type of extremely suitable continuous casting equipment, which can suppress an increase in the amount of bulging due to an increase in the static pressure of the molten metal.
第１図は適当な傾斜角をもたせた従来装置の概念図、第
２図は第１図ｅこ対し傾斜角度を増大した場合の従来装
置の概念図、第３図は第１図の変形例、第４図および第
５図は本発明による実施例を示し、第４図は１点曲げ、
１点矯正の場合における作動説明図、第５図は多点曲げ
、多点矯正の場合の作動説明図、第６図は鋳片未凝固部
の歪量算式基本図である。
ｌ・・・モールド ２・・・鋳片ガイド ３・・・引抜
矯正装置 ε・・・歪量 Ｂ・・・鋳片厚さ ｄ・・・
凝固殻厚さＲ・・・曲げ半径 θ・・・モールド傾斜角
ａ・・・曲げ点ｂ・・・矯正点
第１図
第２図
第３図
第６図
第４図Fig. 1 is a conceptual diagram of a conventional device with an appropriate inclination angle, Fig. 2 is a conceptual diagram of a conventional device with an increased inclination angle compared to Fig. 1e, and Fig. 3 is a modification of Fig. 1. , FIGS. 4 and 5 show an embodiment according to the present invention, in which FIG. 4 shows one-point bending,
FIG. 5 is an explanatory diagram of the operation in the case of one-point straightening, FIG. 5 is an explanatory diagram of the operation in the case of multi-point bending and multi-point straightening, and FIG. 6 is a basic diagram of the strain amount calculation formula for the unsolidified part of the slab. l... Mold 2... Slab guide 3... Drawing straightening device ε... Strain amount B... Slab thickness d...
Solidified shell thickness R...bending radius θ...mold inclination angle a...bending point b...straightening point Fig. 1 Fig. 2 Fig. 3 Fig. 6 Fig. 4
Claims (1)
を形成する方式の薄板連続鋳造設備において、鋳片の引
抜方向に沿って下り勾配に配設したモールドの傾斜角を
、任意に可変ならしむるように構成すると共に、モール
ド出口から引抜矯正装置のタンジェンシャルラインまで
の間における鋳片ガイド装置の配置を変えることなく、
その距離をほぼ一定に保持しうるように円弧部の彎曲半
径をモールド傾斜角の変更分に応じて可変とならしめた
ことを特徴とする無限軌道式連続鋳造設備。In continuous thin plate casting equipment that uses endless tracks to form the upper and lower mold walls or the upper and lower and both sides of the mold walls, the inclination angle of the mold, which is arranged at a downward slope along the drawing direction of the slab, can be arbitrarily varied. At the same time, without changing the arrangement of the slab guide device between the mold outlet and the tangential line of the drawing straightening device,
An endless track type continuous casting equipment characterized in that the radius of curvature of the circular arc portion is made variable according to changes in the mold inclination angle so that the distance can be maintained approximately constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21017681A JPS58112638A (en) | 1981-12-28 | 1981-12-28 | Endless track type continuous casting installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21017681A JPS58112638A (en) | 1981-12-28 | 1981-12-28 | Endless track type continuous casting installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58112638A true JPS58112638A (en) | 1983-07-05 |
| JPS617147B2 JPS617147B2 (en) | 1986-03-04 |
Family
ID=16585034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21017681A Granted JPS58112638A (en) | 1981-12-28 | 1981-12-28 | Endless track type continuous casting installation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58112638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4632176A (en) * | 1985-04-19 | 1986-12-30 | Pearce Ronald A | Apparatus for continuous strip casting of aluminum sheet material |
| JPS62110845A (en) * | 1985-11-08 | 1987-05-21 | Ishikawajima Harima Heavy Ind Co Ltd | Continuous casting installation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02228853A (en) * | 1989-03-02 | 1990-09-11 | Oki Electric Ind Co Ltd | Transmission control system for data communication and its modem equipment |
-
1981
- 1981-12-28 JP JP21017681A patent/JPS58112638A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4632176A (en) * | 1985-04-19 | 1986-12-30 | Pearce Ronald A | Apparatus for continuous strip casting of aluminum sheet material |
| JPS62110845A (en) * | 1985-11-08 | 1987-05-21 | Ishikawajima Harima Heavy Ind Co Ltd | Continuous casting installation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS617147B2 (en) | 1986-03-04 |
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