JPH0215852A - Method for continuously casting steel - Google Patents
Method for continuously casting steelInfo
- Publication number
- JPH0215852A JPH0215852A JP16656688A JP16656688A JPH0215852A JP H0215852 A JPH0215852 A JP H0215852A JP 16656688 A JP16656688 A JP 16656688A JP 16656688 A JP16656688 A JP 16656688A JP H0215852 A JPH0215852 A JP H0215852A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molten steel
- heat pipe
- solidification
- steel
- 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 51
- 239000010959 steel Substances 0.000 title claims abstract description 51
- 238000005266 casting Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000007711 solidification Methods 0.000 claims abstract description 16
- 230000008023 solidification Effects 0.000 claims abstract description 16
- 238000009749 continuous casting Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 23
- 239000000843 powder Substances 0.000 abstract description 6
- 230000001737 promoting effect Effects 0.000 abstract description 4
- 239000011810 insulating material Substances 0.000 abstract description 3
- 239000000498 cooling water Substances 0.000 description 13
- 230000001965 increasing effect Effects 0.000 description 9
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000007654 immersion Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ る。[Detailed description of the invention] [Industrial application field] Ru.
［従来の技術］
鋼の連続鋳造において、生産性の向上を図るために鋳造
速度を早めることが要求されている。鋳造速度を早める
ためには、モールドから引き抜かれた鋳片に対する冷却
速度の増加が必要である。[Prior Art] In continuous casting of steel, it is required to increase the casting speed in order to improve productivity. In order to increase the casting speed, it is necessary to increase the cooling rate of the slab pulled from the mold.
鋳片に対する冷却速度を増加するためには、次の手段が
ある。The following methods can be used to increase the cooling rate for slabs.
■ 二次冷却帯において鋳片に対し噴射されろ冷却水の
水量増加。■ Increased amount of cooling water injected to the slab in the secondary cooling zone.
■ モールド内における溶鋼の凝固促進。■ Acceleration of solidification of molten steel in the mold.
二次冷却帯において鋳片に対し噴射される冷却水の水量
を増加すれば、鋳片の凝固速度をある程度高めることが
できる。しかしながら、例えば冷却水量を１０倍にして
も、二次冷却帯におけろ鋳片の凝固係数の増加割合は２
割程度であり、冷却水量を更に５０倍または［００倍に
増加せしめても、鋳片の表面温度が低下するのみで、そ
の凝固係数は殆んど向上しない。By increasing the amount of cooling water injected to the slab in the secondary cooling zone, the solidification rate of the slab can be increased to some extent. However, even if the amount of cooling water is increased by 10 times, the solidification coefficient of the slab in the secondary cooling zone will increase by 2.
Even if the amount of cooling water is further increased by 50 times or 00 times, the surface temperature of the slab will only decrease and its solidification coefficient will hardly improve.
しかもこのような鋳片の表面温度の低下は、鋳造された
鋳片を加熱せずに圧延する直接圧延の実施を阻害し、且
つ、冷却水量を増加するためには設備を大幅に改造する
必要が生ずる。Moreover, such a decrease in the surface temperature of the slab impedes the implementation of direct rolling, in which the cast slab is rolled without heating, and it is necessary to significantly modify the equipment in order to increase the amount of cooling water. occurs.
モールド内における溶鋼の凝固促進手段としては、モー
ルド内の溶鋼中に、鉄粉やワイヤ等の除材を投入するこ
とが提案されている。しかしながら、このような除材を
投入するためには、溶鋼と同一成分の除材を使用する必
要があり、且つ、除材の投入時に溶鋼の表面上に浮遊す
るパウダーが溶鋼中に巻き込む問題が生ずる。As a means for accelerating the solidification of molten steel in a mold, it has been proposed to introduce removed metal such as iron powder or wire into the molten steel in the mold. However, in order to introduce such removed material, it is necessary to use removed material with the same composition as the molten steel, and there is a problem that powder floating on the surface of the molten steel may be mixed into the molten steel when the removed material is introduced. arise.
」二連の問題を解決する手段として、例えば、特開昭５
４．−４３８３２号公報には、モールド内の溶鋼中に冷
却子に挿入し、前記冷却子によってモールド内の溶鋼の
凝固を促進することが開示されている。” As a means to solve the double problem, for example,
4. Japanese Patent No. 43832 discloses that a cooler is inserted into molten steel in a mold, and the cooler promotes solidification of the molten steel in the mold.
第５図は、この方法を示す説明図である。第５図に示す
ように、モールド１は、上部モールド１．１と下部モー
ルド１ｂとに分割されており、上部モールド１ａには電
磁力発生装置（図示せず）が設けられている。FIG. 5 is an explanatory diagram showing this method. As shown in FIG. 5, the mold 1 is divided into an upper mold 1.1 and a lower mold 1b, and the upper mold 1a is provided with an electromagnetic force generator (not shown).
モールド１内の溶鋼２中には、冷却水等により内部が強
制冷却されている複数の冷却子３が垂直に挿入されてお
り、冷却子３は、加振器４．ブラケット５およびスプリ
ング６からなる加振装置７によって、上下方向に強制的
に振動する。A plurality of coolers 3 whose insides are forcibly cooled by cooling water or the like are vertically inserted into the molten steel 2 in the mold 1, and the coolers 3 are connected to vibrators 4, 3, 4, 4, 4, 3, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 . A vibrating device 7 consisting of a bracket 5 and a spring 6 forcibly vibrates in the vertical direction.
［発明が解決しようとする課題］
上述の方法によれば、モールド１内に挿入された上下方
向に振動する冷却子３、および、電磁力発生装置により
水平方向に流動する溶鋼２によって、モールド１内の溶
鋼全体にわたって凝固殻を生成せしめ、溶鋼の凝固を促
進させることができる。[Problems to be Solved by the Invention] According to the above-described method, the mold 1 is heated by the cooler 3 inserted into the mold 1 that vibrates in the vertical direction and the molten steel 2 flowing horizontally by the electromagnetic force generator. It is possible to generate a solidified shell over the entire molten steel in the molten steel, thereby promoting solidification of the molten steel.
しかしながら、この方法には、次のような問題がある。However, this method has the following problems.
■ モールドを１一部と下部とに分割し且つ」二部モー
ルド内に電磁力発生装置を設けることを要すするため、
設備が複雑であり多額の費用を要する。■ It is necessary to divide the mold into one part and the lower part, and to install an electromagnetic force generator in the two part mold.
The equipment is complex and costs a lot of money.
■ 冷却子を水平方向に移動させるため、溶鋼表面の変
動が大きくなり、パウダーが溶鋼中に巻き込まれる結果
、品質が劣化する。■ Since the cooler is moved horizontally, fluctuations in the surface of the molten steel increase, and powder gets caught up in the molten steel, resulting in quality deterioration.
従って、この発明の目的は、鋼の連続鋳造に当り、比較
的簡単な設備でモールド内の溶鋼の凝固を促進すること
により鋳造速度を早め、生産性の向上を図ることができ
る鋼の連続鋳造法を提供することにある。Therefore, it is an object of the present invention to continuously cast steel, which can speed up the casting speed and improve productivity by promoting the solidification of molten steel in a mold using relatively simple equipment. It is about providing law.
［課題を解決するための手段］
この発明は、モールド内の溶鋼中に複数個の振動冷却子
を垂直に挿入し、前記振動冷却子によって前記モールド
内の溶鋼の凝固を促進させながら前記モールドから連続
的に鋳片を引き抜く鋼の連続鋳造法において、前記振動
冷却子としてヒートパイプを使用し、前記ヒートパイプ
を、前記モールドの内面積に対してその表面積の占める
割合が１０％以上、３０％以下となるように、前記モー
ルド内の溶鋼中に挿入することに特徴を有するものであ
る。[Means for Solving the Problems] The present invention includes vertically inserting a plurality of vibrating coolers into molten steel in a mold, and promoting solidification of the molten steel in the mold with the vibrating coolers. In a continuous steel casting method in which slabs are continuously drawn, a heat pipe is used as the vibration cooler, and the heat pipe has a surface area that accounts for 10% or more and 30% of the inner area of the mold. It is characterized by being inserted into the molten steel in the mold as described below.
次に、この発明を、図面を参照しながら説明する。第１
図は、この発明の一実施態様を示すモールドの概略垂直
断面図である。Next, the present invention will be explained with reference to the drawings. 1st
The figure is a schematic vertical sectional view of a mold showing one embodiment of the present invention.
モールド１内の溶鋼２中には、その中心に挿入された浸
漬ノズル８を挾んで、振動冷却子としての複数本のヒー
トパイプ９が挿入されている。A plurality of heat pipes 9 as vibration coolers are inserted into the molten steel 2 in the mold 1, sandwiching an immersion nozzle 8 inserted into the center thereof.
ヒートパイプ９は、第２図に拡大垂直断面図で示すよう
に、熱伝導率の高い銅、アルミニウム、ステンレス鋼等
からなる両端が閉塞された管体ｌＯと、管体１０の内側
にその内周面から所定間隔をあけて設けられた、銅また
はステンレスｇＩ製の毛細管構造のウィック１１と、管
体１０とウィック１１との間の間隙内に充填された潜熱
が大きい例えば水、液体窒素のような作動流体１２とか
らなっている。As shown in the enlarged vertical cross-sectional view in FIG. A wick 11 with a capillary structure made of copper or stainless steel GI is provided at a predetermined distance from the circumferential surface, and the gap between the tube body 10 and the wick 11 is filled with a material having a large amount of latent heat, such as water or liquid nitrogen. It consists of a working fluid 12 such as:
ヒートパイプ９の先端部９ａはモールド１内の溶鋼２中
にその上方から垂直に挿入されており。The tip 9a of the heat pipe 9 is vertically inserted into the molten steel 2 in the mold 1 from above.
ヒートパイプ９の後端部９ｂはモールド１の」二部にお
いて屈曲し水平状に形成され、冷却装置１３に挿入され
ている。冷却装置１３には冷却水導入口１４および冷却
水排出口１５が設けられ、冷却水導入口１４から導入さ
れた冷却水は、ヒートパイプ９の後端部９ｂを冷却した
後、冷却水排出口１５から排出されるようになっている
。The rear end portion 9b of the heat pipe 9 is bent at the second portion of the mold 1 and formed horizontally, and is inserted into the cooling device 13. The cooling device 13 is provided with a cooling water inlet 14 and a cooling water outlet 15, and the cooling water introduced from the cooling water inlet 14 cools the rear end portion 9b of the heat pipe 9, and then passes through the cooling water outlet. It is designed to be discharged from 15.
ヒーＩ・パイプ９の垂直な先端部９ａの外周には、所定
間隔をあけて複数個の超音波振動子１６が設けられ、こ
の超音波振動子１６の作動によって。A plurality of ultrasonic transducers 16 are provided at predetermined intervals on the outer periphery of the vertical tip 9a of the heat I pipe 9, and the ultrasonic transducers 16 operate.
ヒートパイプ９の先端部９ａは上下方向に振動する。The tip 9a of the heat pipe 9 vibrates in the vertical direction.
モールド１内の溶鋼２の表面に浮遊するパウダー１７と
接触する、ヒートパイプ９の先端部９ ａの外周↓こけ
、パウダー１７が冷却されて凝固することを防止するた
めの断熱材１８が取付けられている。The outer periphery of the tip 9a of the heat pipe 9 that comes into contact with the powder 17 floating on the surface of the molten steel 2 in the mold 1 ↓Moss, a heat insulating material 18 is attached to prevent the powder 17 from cooling and solidifying. ing.
モールド１内の溶鋼２中に浸漬されているヒートパイプ
９の先端部９ａは、溶鋼２によって加熱され、管体１０
内の作動流体１２が蒸発する。このときに生ずる吸熱反
応によって、先端部９ａに接触する溶ｆＲ２は冷却され
る。The tip 9a of the heat pipe 9 immersed in the molten steel 2 in the mold 1 is heated by the molten steel 2, and the pipe body 10
The working fluid 12 within evaporates. Due to the endothermic reaction that occurs at this time, the melt fR2 in contact with the tip 9a is cooled.
上述の作動流体１２の蒸発によって生じた蒸気流は、管
体１０内を上昇し、冷却装置１３によって冷却されてい
る後端部９ｂに至る。そして、後端部９ｂにおいて急冷
され、凝縮して液体となり、管体１０内を循環する。The vapor flow generated by the evaporation of the working fluid 12 described above rises within the tube body 10 and reaches the rear end portion 9b, which is cooled by the cooling device 13. Then, it is rapidly cooled at the rear end portion 9b, condensed into a liquid, and circulated within the tube body 10.
ヒートパイプ９は、上述のように構成されているので、
潜熱の利用による大量の熱輸送が可能であり、蒸気流に
よる熱移動のため熱応当性が早く、均一な温度分布が得
られる等の熱的な特性を有しており、しかも、軽量で且
つ簡単な構造を有しているから、溶５ｒＡ２を効率的に
冷却することができる。Since the heat pipe 9 is configured as described above,
It has thermal properties such as being able to transport a large amount of heat by using latent heat, having quick thermal response due to heat transfer by steam flow, and being able to obtain uniform temperature distribution.Moreover, it is lightweight and Since it has a simple structure, the molten 5rA2 can be efficiently cooled.
上述のようにして、ヒートパイプ９により冷却された溶
ｗＡ２には凝固核が生成する。生成した凝固核は、ヒー
トパイプ９の振動によりヒートパイプ９から離れ、沈殿
する間に、再溶解と成長とが繰り返されて大きく成長し
、そして増殖する。このような凝固殻の成長、増殖と、
凝固殻の再溶解時に生ずる吸熱反応とによって、モール
ド１の溶鋼２は、モールド１と接触する固液界面および
モールド１の内部から急速に凝固が進む。As described above, solidification nuclei are generated in the molten wA2 cooled by the heat pipe 9. The generated solidified nuclei are separated from the heat pipe 9 due to the vibration of the heat pipe 9, and while they are precipitated, re-dissolution and growth are repeated to grow and multiply. The growth and proliferation of such solidified shells,
Due to the endothermic reaction that occurs when the solidified shell is remelted, the molten steel 2 in the mold 1 rapidly solidifies from the solid-liquid interface in contact with the mold 1 and from inside the mold 1.
ヒートパイプ９は、モールド１の内面積に対してその表
面積の占める割合が１０％以上、３０％以下となるよう
に、モールド１の溶鋼２中に挿入することが必要である
。The heat pipe 9 needs to be inserted into the molten steel 2 of the mold 1 so that its surface area accounts for 10% or more and 30% or less of the inner area of the mold 1.
第３図に平面図で示すように、−辺の幅Ｑ４が１１００
ｍｍ、他辺の輻Ｑ２が２２０１１ｎのモールドｌを使用
し、モールド１内の溶鋼２中に、−辺の幅Ｑ、が５０ｉ
關、他辺の幅Ｑ４がｌ ５０ ｕ＋ｎ＋であるヒートパ
イプ９の先端部９ａを浸漬し、下記条件で冷却を行なっ
た場合における、モールド１の内面積に対するヒートパ
イプ９の表面積の占める割合即ちヒートパイプ占有率と
冷却能力との関係を調べた。As shown in the plan view in Fig. 3, the width Q4 of the − side is 1100
mm, and the width Q2 of the other side is 22011n.
The ratio of the surface area of the heat pipe 9 to the inner area of the mold 1, that is, the heat The relationship between pipe occupancy and cooling capacity was investigated.
ヒートパイプの単位断面積当りの熱輸送能力・・・・・
５０００υ／ｄ
ヒートパイプの表面温度 ・・・・・２５℃ヒートパイ
プの浸漬深さ ・・・・・３００ ｎｗｎ溶鋼温度
・・・・・１５３０℃
第４図は、蒸気によるヒートパイプ占有率と冷却能力と
の関係を示すグラフである。第４図かられかるように、
ヒートパイプ占有率が５％の場合の冷却能力は０，６
ｘ ｌ Ｏ’Ｗ、１０％の場合は１．２ Ｘ １０’Ｗ
、１５％の場合は２．ＯＸ １０’Ｗ。Heat transport capacity per unit cross-sectional area of heat pipe...
5000υ/d Heat pipe surface temperature...25℃ Heat pipe immersion depth...300 nwn Molten steel temperature
...1530°C FIG. 4 is a graph showing the relationship between the heat pipe occupancy rate by steam and the cooling capacity. As can be seen from Figure 4,
When the heat pipe occupancy rate is 5%, the cooling capacity is 0.6
x l O'W, 1.2 X 10'W for 10%
, 2 for 15%. OX 10'W.
３０％の場合は３．７ Ｘ １０’Ｗである。In the case of 30%, it is 3.7 x 10'W.
冷却能力が、１．２Ｘ１０’Ｗ即ちピー１〜パイプ占有
率が１０％の場合、同じ機長を有する連続鋳造機で最高
鋳造速度は、１０％ｕｐ程度であるから、ヒートパイプ
占有率が１０％未満では所望の鋳造速度増加効果は得ら
れない。一方、ヒートパイプ占有率が３０％を超えると
、モールド内における溶鋼の収容量が少なくなりすぎ、
ｔ４造効率を阻害する問題が生ずる。When the cooling capacity is 1.2X10'W, that is, the heat pipe occupation rate is 10%, the maximum casting speed with a continuous casting machine with the same machine length is about 10% up, so the heat pipe occupation rate is 10%. If it is less than that, the desired casting speed increasing effect cannot be obtained. On the other hand, when the heat pipe occupancy rate exceeds 30%, the amount of molten steel accommodated in the mold becomes too small.
A problem arises that inhibits T4 production efficiency.
従って、この発明においては、モールドの内面積に対す
るヒートパイプの占有率即ちヒートパイプの表面積の占
める割合を、１０％以上、３０’％。Therefore, in the present invention, the occupation ratio of the heat pipe to the inner area of the mold, that is, the ratio of the surface area of the heat pipe to the inner area of the mold is 10% or more and 30'%.
以下に限定した。Limited to the following.
［実施例］ 次に、この発明を実施例に基づいて説明する。[Example] Next, the present invention will be explained based on examples.
第３図に示した一辺の幅Ｑ工が１１００１１Ｉ１１、他
辺（７）ｌＩ’１ＪＱ２カ２２０１１１１、長す９００
ＩＩＩ１１ノ大キサノモールドを有し、二次冷却帯の長
さが４１ｍの連続鋳造機により普通炭素鋼を連続ｔ４ｉ
ａした。The width of one side shown in Figure 3 is 110011I11, the other side (7)lI'1JQ2 is 2201111, and the length is 900.
A continuous casting machine with a III11 large xano mold and a secondary cooling zone of 41 m is used to continuously cast ordinary carbon steel to T4i.
I did a.
モールド内の溶鋼中に、−辺の幅Ｑ、が５０ ｕ＊ｕ
。In the molten steel in the mold, the width Q of the − side is 50 u*u
.
他辺の幅Ｑ４が１５０ ｎｕの大きさのピー１〜パイプ
４木を３００ ｎｆｌ＋の深さに浸漬し、このピー１−
パイプを、振動数１０１（ｚ以上、振幅１〜１ｏｎｎで
」二下方向に振動させた。モールドの内面積に対するヒ
ートパイプの表面積の占める割合は２７％である。Pipe 1 to Pipe 4 whose width Q4 on the other side is 150 nu is immersed to a depth of 300 nfl+, and this Pipe 1-
The pipe was vibrated downward at a frequency of 101 (Z or more, amplitude 1 to 1 onn). The ratio of the surface area of the heat pipe to the inner area of the mold was 27%.
この結果、モールド内の溶鋼に対する冷却能力は、５１
、 ＯＯ０Ｋｃａｌ／分となり、ＨＡ速度を４．５ｍ
／分に高めても、モールド下端における凝固殻の厚さは
１０．６ｎｏであって、二次冷却帯末端において完全に
凝固の完了した。１辺の幅が１ＬＯＯｕｎ＋、他辺の幅
が２２０ ｏｎ＋の鋳片を連続的にｊＪ造することがで
きた。As a result, the cooling capacity for the molten steel in the mold was 51
, OO0Kcal/min, HA speed 4.5m
Even when the temperature was increased to 1/min, the thickness of the solidified shell at the lower end of the mold was 10.6 mm, and solidification was completely completed at the end of the secondary cooling zone. It was possible to continuously produce slabs with a width of 1 LOOun+ on one side and a width of 220 on+ on the other side.
これに対して、モールド内の溶鋼中にヒートパイプを挿
入しない従来法の場合には、鋳造速度を：３ ｒｎ ／
分としないと、モールド下端において上記厚さの凝固殻
が生成し、二次冷却帯末端において完全に凝固を完了し
た鋳片を連続鋳造することはできなかった。On the other hand, in the case of the conventional method in which no heat pipe is inserted into the molten steel in the mold, the casting speed is: 3 rn/
Otherwise, a solidified shell of the above thickness would be formed at the lower end of the mold, making it impossible to continuously cast a slab that had completely solidified at the end of the secondary cooling zone.
このように本発明によれば、鋳造速度を従来の１．５
倍に高めることができた。As described above, according to the present invention, the casting speed can be increased to 1.5
I was able to double it.
［発明の効果］
以上述べたように、この発明によれば、鋼の連続ｔＪＩ
造に当り、比較的簡単な設備でモールｌ−’内の溶鋼の
凝固が促進され、この結果、鋳造速度を早め生産性を向
上させることができる工業上有用な効果がもたらされる
。[Effect of the invention] As described above, according to the present invention, the continuous tJI of steel
During casting, the solidification of the molten steel in the mold l-' is promoted with relatively simple equipment, resulting in an industrially useful effect of increasing the casting speed and improving productivity.
第１図はこの発明の一実施態床を示すモールドの概略垂
直断面図、第２図はこの発明に使用されるヒートパイプ
の拡大垂直断面図、第３図はヒートパイプの配置状態を
示す概略平面図、第４図はヒートパイプ占有率と冷却能
力との関係を示すグラフ、第５図は従来方法の一例を示
すモールドの１既略垂直断面図である１３図面において
、１・・・モールド、 ２・・溶鋼。
３・・・冷却子、 ４・・・加振器、５・・・ブ
ラケット、 ６−スプリング、７・・・加振装置、
８・・・浸漬ノズル。
９・・ヒー１へパイプ、ｌＯ・・・管体、１１ ・ウィ
ック、
１３・−冷却装置、
１５・・冷却水排出口、
１７・・パウダー
２ ・作動流体、
４・・・冷却水導入口。
６・・・超音波振動子、
８・・・断熱材。
第１図FIG. 1 is a schematic vertical cross-sectional view of a mold showing a floor according to an embodiment of the present invention, FIG. 2 is an enlarged vertical cross-sectional view of a heat pipe used in the present invention, and FIG. 3 is a schematic view showing the arrangement of the heat pipes. 13 is a plan view, FIG. 4 is a graph showing the relationship between heat pipe occupancy and cooling capacity, and FIG. 5 is a schematic vertical sectional view of a mold showing an example of a conventional method. , 2... Molten steel. 3... Cooler, 4... Vibrator, 5... Bracket, 6-Spring, 7... Vibrator,
8... Immersion nozzle. 9... Pipe to heat 1, lO... pipe body, 11... wick, 13... - cooling device, 15... cooling water outlet, 17... powder 2 - working fluid, 4... cooling water inlet . 6... Ultrasonic vibrator, 8... Heat insulating material. Figure 1
Claims (1)
し、前記振動冷却子によって前記モールド内の溶鋼の凝
固を促進させながら前記モールドから連続的に鋳片を引
き抜く鋼の連続鋳造法において、 前記振動冷却子としてヒートパイプを使用し、前記ヒー
トパイプを、前記モールドの内面積に対してその表面積
の占める割合が１０％以上、３０％以下となるように、
前記モールド内の溶鋼中に挿入することを特徴とする鋼
の連続鋳造法。[Claims] A plurality of vibration coolers are vertically inserted into molten steel in a mold, and slabs are continuously pulled out from the mold while the vibration coolers promote solidification of the molten steel in the mold. In the continuous steel casting method, a heat pipe is used as the vibration cooler, and the heat pipe is arranged so that the ratio of its surface area to the inner area of the mold is 10% or more and 30% or less,
A continuous casting method for steel, characterized by inserting the steel into molten steel in the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16656688A JPH0215852A (en) | 1988-07-04 | 1988-07-04 | Method for continuously casting steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16656688A JPH0215852A (en) | 1988-07-04 | 1988-07-04 | Method for continuously casting steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0215852A true JPH0215852A (en) | 1990-01-19 |
Family
ID=15833641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16656688A Pending JPH0215852A (en) | 1988-07-04 | 1988-07-04 | Method for continuously casting steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0215852A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671102A1 (en) * | 1990-12-27 | 1992-07-03 | Siderurgie Fse Inst Rech | Process and device for fluidising liquid slag at the surface of a bath of molten metal |
| WO2011036060A1 (en) | 2009-09-23 | 2011-03-31 | Siemens Vai Metals Technologies Gmbh | Method and device for casting metal melt in a continuous casting machine |
| WO2011117296A1 (en) * | 2010-03-25 | 2011-09-29 | Siemens Vai Metals Technologies Gmbh | Method, casting tube, and continuous casting system for casting a melt made of liquid metal into a continuously cast product |
| JP2011212737A (en) * | 2010-04-01 | 2011-10-27 | Nippon Steel Corp | Continuous casting apparatus |
| CN107622726A (en) * | 2017-10-09 | 2018-01-23 | 中南大学 | A device and method for simulating mold slag crystallization and heat transfer behavior in a continuous casting mold under the action of electric pulses |
| CN107716887A (en) * | 2017-10-09 | 2018-02-23 | 中南大学 | A kind of lower steel liquid solidification simulator in continuous casting crystallizer of electric pulse effect |
-
1988
- 1988-07-04 JP JP16656688A patent/JPH0215852A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671102A1 (en) * | 1990-12-27 | 1992-07-03 | Siderurgie Fse Inst Rech | Process and device for fluidising liquid slag at the surface of a bath of molten metal |
| WO2011036060A1 (en) | 2009-09-23 | 2011-03-31 | Siemens Vai Metals Technologies Gmbh | Method and device for casting metal melt in a continuous casting machine |
| CN102497944A (en) * | 2009-09-23 | 2012-06-13 | 西门子Vai金属科技有限责任公司 | Method and device for casting metal melt in a continuous casting machine |
| WO2011117296A1 (en) * | 2010-03-25 | 2011-09-29 | Siemens Vai Metals Technologies Gmbh | Method, casting tube, and continuous casting system for casting a melt made of liquid metal into a continuously cast product |
| JP2011212737A (en) * | 2010-04-01 | 2011-10-27 | Nippon Steel Corp | Continuous casting apparatus |
| CN107622726A (en) * | 2017-10-09 | 2018-01-23 | 中南大学 | A device and method for simulating mold slag crystallization and heat transfer behavior in a continuous casting mold under the action of electric pulses |
| CN107716887A (en) * | 2017-10-09 | 2018-02-23 | 中南大学 | A kind of lower steel liquid solidification simulator in continuous casting crystallizer of electric pulse effect |
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