JPS63104754A - Method for controlling water volume of spray cooled mold - Google Patents
Method for controlling water volume of spray cooled moldInfo
- Publication number
- JPS63104754A JPS63104754A JP24732986A JP24732986A JPS63104754A JP S63104754 A JPS63104754 A JP S63104754A JP 24732986 A JP24732986 A JP 24732986A JP 24732986 A JP24732986 A JP 24732986A JP S63104754 A JPS63104754 A JP S63104754A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- water
- spray
- zone
- temp
- 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
- 239000007921 spray Substances 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 5
- 238000001816 cooling Methods 0.000 claims description 12
- 238000009749 continuous casting Methods 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 abstract description 12
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 230000005499 meniscus Effects 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000005266 casting Methods 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、連続鋳造設備用モールドの冷却に係り、特に
スプレ冷却モールドの水量調節方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to cooling a mold for continuous casting equipment, and particularly to a method for adjusting the amount of water in a spray cooling mold.
従来連続鋳造設備における冷却モールドについて、この
モールドの冷却水量の調整は次のような考え方に基づい
ていた。即ち、溶鋼の潜熱と凝固殻を通しての伝導熱は
すべてモールドを介して冷却水に伝達されるとし、冷却
水の温度上昇を測定することによってモールド全長にわ
たって奪った熱量の合計として把握していた。Regarding cooling molds in conventional continuous casting equipment, adjustment of the amount of cooling water for the molds was based on the following concept. In other words, it was assumed that all the latent heat of the molten steel and the heat conducted through the solidified shell were transferred to the cooling water through the mold, and by measuring the temperature rise of the cooling water, it was determined as the total amount of heat taken over the entire length of the mold.
そしてモールド冷癲水の温度上昇値を基準内にするよう
水量を調節していた。Then, the amount of water was adjusted so that the temperature rise value of mold cooling water was within the standard.
ところで従来水量調節する基準としてモールド冷却水の
出入口温度を測定していたため、平均化された熱量の合
計しかわからず、凝固殻の成長が異常になった位置（モ
ールド長手方向、及び断面内で）を検知することができ
ないし、必要な対策を打つこともできなかった。すなわ
ち鋳片に生じ易い変形や割れの源に対して直接対策を講
じることができなかった。By the way, conventionally, the temperature at the entrance and exit of the mold cooling water was measured as a reference for adjusting the amount of water, so only the averaged total amount of heat was known, and it was possible to determine the location where the growth of the solidified shell became abnormal (in the longitudinal direction of the mold and within the cross section). It was not possible to detect the situation, and it was not possible to take the necessary countermeasures. In other words, it has not been possible to take direct measures against the sources of deformation and cracking that easily occur in slabs.
本発明は上記問題点を解消し、鋳片に生じ易い変形や割
れを防止することができるスプレ冷却モールドの水量調
節方法を提供すること金目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for adjusting the amount of water in a spray cooling mold that can solve the above-mentioned problems and prevent deformation and cracking that easily occur in slabs.
Ｌ問題点を解決するための手段〕
すなわち本発明は管状をなす連続鋳造設備用モールドの
外表面をスプレ水によって冷却するスプレ冷却モールド
の冷却方法において、モールド壁の温度を測定し、この
温度を一定の範囲内に保つように水量を長手方向及び断
面内で調節し、モールドとモールド内凝固殼の均一な接
触を可能にすることを特徴とするスプレ冷却モールドの
水量調節方法である。Means for Solving Problem L] That is, the present invention is a cooling method for a spray cooling mold in which the outer surface of a tubular mold for continuous casting equipment is cooled by spray water, in which the temperature of the mold wall is measured and this temperature is This is a method for adjusting the amount of water in a spray cooling mold, which is characterized by adjusting the amount of water in the longitudinal direction and in the cross section so as to maintain it within a certain range, thereby enabling uniform contact between the mold and the solidified shell in the mold.
以下本発明の詳細な説明すると、本発明は、モールドと
凝固殻の接触の状況がモールドの温度を測ることにより
わかる点を利用し、この温度を最適範囲内に保つように
スプレ冷却水を調節するようにしたものである。すなわ
ち、モールドと凝固殻の間に空隙ができるとモールドの
＠朋が下り、接触すると上昇するから、この空隙ができ
ないような冷却をするためにあらかじめ設定した長手方
向の冷却水分布を、モールド温度の変化に応じて調節で
きるようにしたものである。そして、モールドの温度が
下り始めると水量を締シ、高温限界を越えると水量を増
やす制御を行うものである。To explain the present invention in detail below, the present invention utilizes the fact that the contact status between the mold and the solidified shell can be determined by measuring the temperature of the mold, and adjusts the spray cooling water to maintain this temperature within the optimum range. It was designed to do so. In other words, if a gap is created between the mold and the solidified shell, the temperature of the mold will drop, and if they make contact, it will rise. Therefore, in order to achieve cooling that prevents this gap from forming, the longitudinal cooling water distribution is set in advance by adjusting the mold temperature. It is designed so that it can be adjusted according to changes in Then, when the temperature of the mold starts to drop, the amount of water is tightened, and when the temperature exceeds a high temperature limit, the amount of water is increased.
本発明の実施例を第１図および第２図に基づいて説明す
る。第１図および第２図は本発明の実施例であるモール
ド冷却水系統および温度測定センサの配置を示す図であ
って、第１図はその縦断面図であり、第２図は同横断面
図である。An embodiment of the present invention will be described based on FIGS. 1 and 2. 1 and 2 are diagrams showing the arrangement of a mold cooling water system and a temperature measurement sensor according to an embodiment of the present invention, in which FIG. 1 is a longitudinal cross-sectional view thereof, and FIG. 2 is a cross-sectional view thereof. It is a diagram.
スプレ水（冷却水）の制御単位は、第１図に示すように
、長手方向で２分割し、各々独立した水を調節弁５，６
を設け、水量調節は下段の第２ゾーンの下部スプレー管
４で行う。一方、上段の第１ゾーンは、モールド１と溶
鋼１１との液体接触ゾーンであり、この個所は伝熱量の
変化が小さいので、第１ゾーンの上部スプレー管３は鋳
片寸法および鋼種・鋳造速度によって決められる最適量
に予め設定して一定量の冷却水をスプレーする。The control unit for spray water (cooling water) is divided into two parts in the longitudinal direction as shown in Fig.
The water amount is adjusted by the lower spray pipe 4 in the second zone at the lower stage. On the other hand, the upper first zone is the liquid contact zone between the mold 1 and the molten steel 11, and since the change in heat transfer is small in this area, the upper spray pipe 3 of the first zone is connected to the slab size, steel type, and casting speed. A fixed amount of cooling water is sprayed by presetting the optimum amount determined by the following.
モールド温度はメニスカス近傍（メニスカスから約５Ｑ
ｔｍ下方）とメニスカスから約１５０酊の位置に埋込ん
だ熱電対９および１ｏによって測定する。The mold temperature is near the meniscus (approximately 5Q from the meniscus)
tm below) and thermocouples 9 and 1o embedded at a position approximately 150 mm from the meniscus.
モールドの壁温が最も高くなるのは溶鋼面（メニスカス
）から２０〜３（ｌＩ＋１下った位置であることと、温
度の降下が急に大きくなる位置が溶鋼面下１５０ｍｍ（
空隙が生成するため）にあるところから、この位置に熱
電対９，１ｏを埋込んだ。そしてこの測定値を第１図の
横断面である第２図に示すように、演算器７に大刀し、
この結果により流量調節弁６を制御する。制御するモー
ルド温度の範囲は熱電対９および１゜の覗付位置にもよ
るが、内面から３ｔＩＩの位置で ４１５０〜２００Ｃ
程度である。なお、第１図において、８はスプレーノズ
ルでアル。Ａ、Ｂ。The wall temperature of the mold is highest at a position 20 to 3 (lI+1) below the molten steel surface (meniscus), and the position where the temperature drop is suddenly large is 150 mm below the molten steel surface (
Thermocouples 9 and 1o were embedded at these positions, since voids were generated. Then, as shown in FIG. 2, which is a cross section of FIG.
The flow control valve 6 is controlled based on this result. The range of mold temperature to be controlled depends on the thermocouple 9 and the 1° viewing position, but it is 4150 to 200C at a position of 3tII from the inner surface.
That's about it. In addition, in FIG. 1, 8 is a spray nozzle. A, B.
Ｃ及びＤはモールド１１ｔ−冷却するスプレ管（第１図
においてＢ、Ｏ及びＤのスプレ管は省略されている）で
、モールド１１の各面に１本ずつ配置されているもので
ある。C and D are spray tubes for cooling the mold 11t (spray tubes B, O, and D are omitted in FIG. 1), one on each side of the mold 11.
本発明は、以上詳記したように、モールドとモールド内
凝固殼との均一接触を可能とするように、すなわち、モ
ールドとモールド内凝固殼との空隙発生を最小限に抑制
するように水量を調節するものであるから、凝固殻の成
長を一様にすることが可能となシ、その結果凝固ムラに
よって凝固殻内に生ずる熱応力が小さくなり、変形や割
れを防止できるため、モールド直下で殻が破れるブレー
クアウト現象が起らず鋳造速度を上げることが可能とな
る効果が生ずる。そして、経験によれば鋳造速度は２０
〜３０％向上できた。As described in detail above, the present invention aims to reduce the amount of water so as to enable uniform contact between the mold and the solidified shell in the mold, that is, to minimize the generation of voids between the mold and the solidified shell in the mold. Since it is a control device, it is possible to make the growth of the solidified shell uniform, and as a result, the thermal stress generated in the solidified shell due to uneven solidification is reduced, and deformation and cracking can be prevented. The effect is that the breakout phenomenon in which the shell breaks does not occur, making it possible to increase the casting speed. And according to experience, the casting speed is 20
It was improved by ~30%.
第１図および第２図は本発明の実施例であるモールド冷
却水系統および温度測定センサの配置を示す図であって
、第１図はその縦断面図であり、第２図は同横断面図で
ある。
１；モールド
２；凝固殻
３；上部スプレー管
４；下部スプレー管
５，６；流量調節弁
７；演算器
８；スプレーノズル
？、１ｏ；熱電対
復代理人 内 １） 明
復代理人 萩 原 亮 −
復代理人 安 西 篤 夫1 and 2 are diagrams showing the arrangement of a mold cooling water system and a temperature measurement sensor according to an embodiment of the present invention, in which FIG. 1 is a longitudinal cross-sectional view thereof, and FIG. 2 is a cross-sectional view thereof. It is a diagram. 1; Mold 2; Solidified shell 3; Upper spray pipe 4; Lower spray pipes 5, 6; Flow control valve 7; Computing unit 8; Spray nozzle? , 1o; Thermocouple sub-agent 1) Meifuku agent Ryo Hagiwara − Sub-agent Atsuo Anzai
Claims (1)
によつて冷却するスプレ冷却モールドの冷却方法におい
て、モールド壁の温度を測定し、この温度を一定の範囲
内に保つように水量を長手方向及び断面内で調節し、モ
ールドとモールド内凝固殼の均一な接触を可能にするこ
とを特徴とするスプレ冷却モールドの水量調節方法。In the spray cooling mold cooling method, which uses spray water to cool the outer surface of a tubular mold for continuous casting equipment, the temperature of the mold wall is measured, and the amount of water is adjusted in the longitudinal direction to maintain this temperature within a certain range. and a method for adjusting the amount of water in a spray cooling mold, which comprises adjusting the water amount within the cross section to enable uniform contact between the mold and the solidified shell in the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24732986A JPS63104754A (en) | 1986-10-20 | 1986-10-20 | Method for controlling water volume of spray cooled mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24732986A JPS63104754A (en) | 1986-10-20 | 1986-10-20 | Method for controlling water volume of spray cooled mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63104754A true JPS63104754A (en) | 1988-05-10 |
Family
ID=17161780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24732986A Pending JPS63104754A (en) | 1986-10-20 | 1986-10-20 | Method for controlling water volume of spray cooled mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63104754A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995026841A1 (en) * | 1994-03-30 | 1995-10-12 | Lauener Engineering, Ltd. | Method and apparatus for continuously casting metal |
| US6125915A (en) * | 1994-03-30 | 2000-10-03 | Golden Aluminum Company | Method of and apparatus for cleaning a continuous caster |
| EP1103322A1 (en) * | 1999-11-25 | 2001-05-30 | SMS Demag AG | Process for continuous casting slabs, especially thin slabs, and device for carrying out the process |
| EP1103323A2 (en) * | 1999-11-29 | 2001-05-30 | SMS Demag AG | Process and device for continuous casting of steel |
| US6354364B1 (en) | 1994-03-30 | 2002-03-12 | Nichols Aluminum-Golden, Inc. | Apparatus for cooling and coating a mold in a continuous caster |
| WO2003028921A3 (en) * | 2001-09-28 | 2003-10-23 | Sms Demag Ag | Method and device for cooling the copper plates of a continuous casting ingot mould for liquid metals, especially liquid steel |
| CN103357834A (en) * | 2013-07-05 | 2013-10-23 | 苏州有色金属研究院有限公司 | Dual-cooling-space heat exchange coefficient measurement device used in casting process |
-
1986
- 1986-10-20 JP JP24732986A patent/JPS63104754A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6354364B1 (en) | 1994-03-30 | 2002-03-12 | Nichols Aluminum-Golden, Inc. | Apparatus for cooling and coating a mold in a continuous caster |
| US5697423A (en) * | 1994-03-30 | 1997-12-16 | Lauener Engineering, Ltd. | Apparatus for continuously casting |
| US5839500A (en) * | 1994-03-30 | 1998-11-24 | Lauener Engineering, Ltd. | Apparatus for improving the quality of continously cast metal |
| US6019159A (en) * | 1994-03-30 | 2000-02-01 | Golen Aluminum Company | Method for improving the quality of continuously cast metal |
| US6089308A (en) * | 1994-03-30 | 2000-07-18 | Nichols Aluminum | Method and apparatus for improving the quality of continuously cast metal |
| US6125915A (en) * | 1994-03-30 | 2000-10-03 | Golden Aluminum Company | Method of and apparatus for cleaning a continuous caster |
| WO1995026841A1 (en) * | 1994-03-30 | 1995-10-12 | Lauener Engineering, Ltd. | Method and apparatus for continuously casting metal |
| EP1103322A1 (en) * | 1999-11-25 | 2001-05-30 | SMS Demag AG | Process for continuous casting slabs, especially thin slabs, and device for carrying out the process |
| US6776217B1 (en) | 1999-11-25 | 2004-08-17 | Sms Demag Ag | Method for continuous casting of slab, in particular, thin slab, and a device for performing the method |
| EP1103323A2 (en) * | 1999-11-29 | 2001-05-30 | SMS Demag AG | Process and device for continuous casting of steel |
| EP1103323A3 (en) * | 1999-11-29 | 2001-09-19 | SMS Demag AG | Process and device for continuous casting of steel |
| WO2003028921A3 (en) * | 2001-09-28 | 2003-10-23 | Sms Demag Ag | Method and device for cooling the copper plates of a continuous casting ingot mould for liquid metals, especially liquid steel |
| CN103357834A (en) * | 2013-07-05 | 2013-10-23 | 苏州有色金属研究院有限公司 | Dual-cooling-space heat exchange coefficient measurement device used in casting process |
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