JP2893662B2 - Continuous casting mold - Google Patents
Continuous casting moldInfo
- Publication number
- JP2893662B2 JP2893662B2 JP3008475A JP847591A JP2893662B2 JP 2893662 B2 JP2893662 B2 JP 2893662B2 JP 3008475 A JP3008475 A JP 3008475A JP 847591 A JP847591 A JP 847591A JP 2893662 B2 JP2893662 B2 JP 2893662B2
- Authority
- JP
- Japan
- Prior art keywords
- copper plate
- cooling
- continuous casting
- meniscus
- bolt
- 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.)
- Expired - Fee Related
Links
Landscapes
- Continuous Casting (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、連続鋳造用鋳型に関
し、さらに詳しくはメニスカス近傍の鋳型銅板の均一冷
却を可能とする鋳型に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold for continuous casting, and more particularly to a mold capable of uniformly cooling a mold copper plate near a meniscus.
【０００２】[0002]
【従来の技術】図３に、連続鋳造機の鋳型の平面図を示
す。鋳型は長辺銅板１と短辺銅板２で構成され、それぞ
れ専用のバックアッププレート３、４にボルトで固定さ
れている。図４は鋳型の長辺側の縦断面（図３のＡ−Ａ
矢視断面）を示す。長辺銅板１の固定側（バックアップ
プレート３側）に水冷用の冷却溝７を加工している。バ
ックアッププレート３、４は上下に二分された水箱で、
冷却水５を銅板１，２へ供給するヘッダーの役割も果し
ている。2. Description of the Related Art FIG. 3 is a plan view of a mold of a continuous casting machine. The mold is composed of a long side copper plate 1 and a short side copper plate 2 and is fixed to dedicated backup plates 3 and 4 by bolts. FIG. 4 is a longitudinal section of the long side of the mold (AA in FIG. 3).
FIG. A cooling groove 7 for water cooling is machined on the fixed side (the backup plate 3 side) of the long side copper plate 1. The backup plates 3 and 4 are water boxes divided into upper and lower parts.
It also serves as a header for supplying the cooling water 5 to the copper plates 1 and 2.
【０００３】また図５に、従来の銅板の冷却溝７の配列
を示す。銅板固定用ボルト８があるために水平方向で冷
却溝７のピッチを均等に配設することができない。従っ
て、連続鋳造機用の鋳型においては、銅板１，２の固定
用ボルト部が他の部分に比較して冷却不足となって高温
化し、銅板１，２の表面温度が不均一になるという問題
がある。すなわち、このことによって銅板の熱変形や、
鋳片の冷却の不均一が発生し鋳片の表面割れ等の品質異
常の原因となることがある。FIG. 5 shows an arrangement of cooling grooves 7 in a conventional copper plate. The pitch of the cooling grooves 7 cannot be evenly arranged in the horizontal direction due to the presence of the copper plate fixing bolts 8. Therefore, in a mold for a continuous casting machine, the fixing bolts of the copper plates 1 and 2 are insufficiently cooled as compared with other portions and become high in temperature, so that the surface temperatures of the copper plates 1 and 2 become uneven. There is. In other words, this causes thermal deformation of the copper plate,
Non-uniform cooling of the slab may occur and cause quality abnormalities such as surface cracks of the slab.
【０００４】[0004]
【発明が解決しようとする課題】従来の連続鋳造用鋳型
は上述のような問題があったので、これを解決するため
に種々な技術手段が提案されてきた。すなわちボルト８
の両側の冷却溝７を図６及び図７に示すような形状に加
工し、ボルト部の強冷化を図る手段がある。図６に示す
手段は、ボルト部以外の断面において冷却溝７ピッチを
均等にしたものであるがボルト部ではピッチが広く、銅
板表面の温度差は若干軽減されるものの依然として大き
い。図７に示す手段は、ボルト８の両側の冷却溝７を深
くしてボルト部の銅板表面１０の強冷化を図ったもので
あるが、冷却溝７の加工深さが深いために熱応力が集中
して亀裂が生じたり、銅板の改削代が少なくなるといっ
た問題が生じる。従って、このような問題を解決して均
一冷却を図るために特開昭５８−６１９５１号公報にお
いて、図８に示す冷却溝形状が提案されている。さらに
特開平２−５９１４４号公報ではメニスカス近傍１００
ｍｍ以内の範囲に固定用ボルトを配置しないようにし、
メニスカス部では冷却溝のピッチを水平方向で均等に配
設して通水する方法が提案されている。The conventional continuous casting mold has the above-mentioned problems, and various technical means have been proposed to solve these problems. That is, bolt 8
There is a means for processing the cooling grooves 7 on both sides of the bolt into a shape as shown in FIGS. The means shown in FIG. 6 has a uniform pitch of the cooling grooves 7 in the cross section other than the bolt portion, but the pitch is wide in the bolt portion, and the temperature difference on the copper plate surface is slightly reduced but still large. The means shown in FIG. 7 is designed to deepen the cooling grooves 7 on both sides of the bolt 8 to intensify the cooling of the copper plate surface 10 of the bolt portion. Are concentrated and cracks occur, and the cost of reworking the copper plate is reduced. Therefore, in order to solve such a problem and achieve uniform cooling, Japanese Patent Laid-Open No. 58-61951 proposes a cooling groove shape shown in FIG. Further, Japanese Patent Application Laid-Open No. 2-59144 discloses that the vicinity of the meniscus 100
Do not place fixing bolts within the range of
In the meniscus portion, a method has been proposed in which the pitch of the cooling grooves is evenly arranged in the horizontal direction to allow water to flow.
【０００５】尚、連鋳鋳型において、銅板位置と熱流束
の関係は図９に示される。すなわち、メニスカス下８０
〜９０ｍｍの位置で熱流束が最大となるような分布をし
ており、１００ｍｍを超えても８０％程度の熱流束が残
存している。特開平２−５９１４４号公報においては、
メニスカス近傍１００ｍｍ以内を対象としているが、図
９から明らかなように、これでは不十分であり均一冷却
を図ることが困難であるという問題がある。FIG. 9 shows the relationship between the position of the copper plate and the heat flux in the continuous casting mold. That is, under the meniscus 80
The distribution is such that the heat flux becomes maximum at a position of about 90 mm, and about 80% of the heat flux remains even when it exceeds 100 mm. In JP-A-2-59144,
Although the target is within 100 mm in the vicinity of the meniscus, as is apparent from FIG. 9, there is a problem that this is insufficient and it is difficult to achieve uniform cooling.
【０００６】さらに、上述の図８に示す手段において
も、均一冷却が可能であると考えられる。しかし、既存
の設備に導入するにはバックアッププレート等鋳型周辺
装置の改造が必要であり、多額の改造費用が必要とな
る。本発明は、大幅な設備改造せずに従来技術で生じて
いた諸問題を解消し、均一冷却が可能な連続鋳造用鋳型
を提供することを課題とするものである。Further, it is considered that uniform cooling is possible with the means shown in FIG. However, in order to introduce it into existing equipment, it is necessary to remodel a peripheral device such as a backup plate, which requires a large remodeling cost. SUMMARY OF THE INVENTION An object of the present invention is to provide a continuous casting mold capable of solving the problems that have occurred in the prior art without significant equipment modification and capable of uniform cooling.
【０００７】[0007]
【課題を解決するための手段】本発明は、上述の問題点
を解決するものであり、次の技術手段を採った。すなわ
ち、裏面に冷却水導通用の溝が刻設された銅製の連続鋳
造用鋳型において、メニスカス近傍の高温部に位置する
銅板固定用ボルト径を他の固定用ボルト径より小径化す
ると共に、該メニスカス近傍の冷却用溝間隔を均等化し
たことを特徴とする連続鋳造用鋳型である。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has the following technical means. In other words, copper continuous casting with grooves for cooling water conduction
In the casting mold, the diameter of the copper plate fixing bolt located in the high temperature part near the meniscus is made smaller than the diameter of the other fixing bolts, and the cooling groove interval near the meniscus is made uniform. It is a casting mold.
【０００８】[0008]
【作用】本発明の一実施例を図１に示す。図１は長辺銅
板１の冷却溝部の側断面を示したものである。７ａは冷
却溝、８は通常径ボルト、９は小径ボルト、６はメニス
カスレベルを示す。従来はメニスカス近傍の高温部にボ
ルト８があるため冷却溝のピッチがａ＜ｂとなり、均一
冷却を得ることができなかったが、本発明によれば小径
９を使用することにより、冷却溝のピッチをａ≒ａ0 ≒
ｂ0 として均一冷却が可能となる。銅板への最大熱流束
が２６０万Ｋｃａｌ程度の場合は銅板の冷却溝ピッチを
２７ｍｍとし、ボルトの径をＭ１４相当にすることが好
ましい。FIG. 1 shows an embodiment of the present invention. FIG. 1 shows a side cross section of the cooling groove of the long side copper plate 1. 7a is a cooling groove, 8 is a normal diameter bolt, 9 is a small diameter bolt, and 6 is a meniscus level. Conventionally, the pitch of the cooling groove was a <b because the bolt 8 was located in the high-temperature portion near the meniscus, and uniform cooling could not be obtained. However, according to the present invention, by using the small diameter 9, the cooling groove Let the pitch be a ≒ a 0 ≒
As b 0 , uniform cooling becomes possible. When the maximum heat flux to the copper plate is about 2.6 million Kcal, it is preferable that the cooling groove pitch of the copper plate is 27 mm and the diameter of the bolt is equivalent to M14.
【０００９】Ｍ１４より小さいと強度不足となり、これ
より大きいと図１のｂ0 の寸法が２７ｍｍ以上となり、
冷却不足のため高温化し、銅板の表面温度が不均一とな
るためである。[0009] M14 becomes smaller than insufficient strength, this dimension of b 0 larger and 1 becomes more 27 mm,
This is because the temperature is increased due to insufficient cooling, and the surface temperature of the copper plate becomes uneven.
【００１０】[0010]
【実施例】本発明に基づき、図１においてａ＝２４ｍ
ｍ、ｂ＝３２ｍｍ、ａ0 ＝２６．５ｍｍ、ｂ0 ＝２７ｍ
ｍとし、通常部のボルト径のＭ１８に対してメニスカス
直下部をＭ１４とした時の銅板表面（図１のＢ−Ｂ断
面）の温度分布を図２に示す。従来の表面温度差７２℃
に対して本発明では表面温度差は８℃となり均一冷却状
態が得られていることがわかる。DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the invention, a = 24 m in FIG.
m, b = 32 mm, a 0 = 26.5 mm, b 0 = 27 m
FIG. 2 shows the temperature distribution on the surface of the copper plate (cross section taken along the line BB in FIG. 1) when m is set to m and the portion immediately below the meniscus is set to M14 with respect to the bolt diameter M18 in the normal portion. Conventional surface temperature difference 72 ° C
On the other hand, in the present invention, the surface temperature difference was 8 ° C., indicating that a uniform cooling state was obtained.
【００１１】なお、ここで示した冷却溝のピッチ等の具
体的な数量や寸法は一例であって本発明の特徴を制限す
るものではない。必要に応じて図９の熱流束の大きい他
の部分のボルト部を小径化することも可能である。ま
た、長辺銅板についてのみ記しているが、短辺銅板にお
いても同様の効果を得ることができる。Note that the specific quantities and dimensions such as the pitch of the cooling grooves shown here are merely examples, and do not limit the features of the present invention. If necessary, it is also possible to reduce the diameter of the bolt portion of the other portion having a large heat flux in FIG. Although only the long side copper plate is described, the same effect can be obtained with the short side copper plate.
【００１２】[0012]
【発明の効果】本発明は、均一冷却の阻害要因である銅
板の固定用ボルトをメニスカス近傍についてのみ小径化
したことによって、同じ深さの冷却溝を等ピッチで配列
することが可能となり、冷却溝先端からの亀裂の発生や
銅板の改削代が少なくなるといった問題を設備の大幅な
改造をすることなく解消して均一冷却を得ることができ
る。According to the present invention, the cooling grooves of the same depth can be arranged at an equal pitch by reducing the diameter of the fixing bolt for the copper plate, which is an obstacle to uniform cooling, only in the vicinity of the meniscus. Problems such as the occurrence of cracks from the groove end and the reduction in the amount of rework of the copper plate can be solved without significant remodeling of the equipment and uniform cooling can be obtained.
【図１】本発明の一実施例の鋳型の長辺銅板の正面図で
ある。FIG. 1 is a front view of a long side copper plate of a mold according to one embodiment of the present invention.
【図２】本発明と従来例の長辺銅板の表面温度分布の比
較グラフである。FIG. 2 is a comparison graph of the surface temperature distribution of the present invention and the conventional example of a long side copper plate.
【図３】連続鋳造機の鋳型の構成を示す平面図である。FIG. 3 is a plan view showing a configuration of a mold of the continuous casting machine.
【図４】図３のＡ−Ａ矢視断面図である。FIG. 4 is a sectional view taken along the line AA of FIG. 3;
【図５】従来例の冷却溝の配列を示す長辺銅板の正面図
である。FIG. 5 is a front view of a long side copper plate showing an arrangement of cooling grooves in a conventional example.
【図６】従来例１の銅板の固定用ボルト部の強冷化を示
す長辺銅板の正面図である。FIG. 6 is a front view of a long-sided copper plate showing hardening of a fixing bolt portion of the copper plate of Conventional Example 1.
【図７】従来例２の銅板の固定用ボルト部の強冷化を示
す長辺銅板の水平断面図である。FIG. 7 is a horizontal cross-sectional view of a long-sided copper plate showing hardening of a fixing bolt portion of the copper plate of Conventional Example 2.
【図８】均一冷却を目的とした従来例の銅板形状を示す
長辺銅板の正面図である。FIG. 8 is a front view of a long side copper plate showing a conventional copper plate shape for uniform cooling.
【図９】銅板位置と熱流束の関係グラフである。FIG. 9 is a graph showing a relationship between a copper plate position and a heat flux.
１ 長辺銅板 ２ 短辺銅板 ３ 長辺銅板用バックアッププレート ４ 短辺銅板用バックアッププレート ５ 冷却水 ６ メニスカスレベル ７，７ａ 冷却溝 ８ 銅板の固定用ボルト（通常径） ９ 銅板の固定用ボルト（小径） １０ ボルト部の銅板表面 DESCRIPTION OF SYMBOLS 1 Long side copper plate 2 Short side copper plate 3 Long side copper plate backup plate 4 Short side copper plate backup plate 5 Cooling water 6 Meniscus level 7, 7a Cooling groove 8 Copper plate fixing bolt (normal diameter) 9 Copper plate fixing bolt ( (Small diameter) 10 Bolt copper plate surface
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中村 勝美 千葉市川崎町１番地 川崎製鉄株式会社 千葉製鉄所内 (72)発明者 北野 嘉久 千葉市川崎町１番地 川崎製鉄株式会社 千葉製鉄所内 (72)発明者 樋口 和也 千葉市川崎町１番地 川崎製鉄株式会社 千葉製鉄所内 (56)参考文献 実開 平１−177050（ＪＰ，Ｕ) 特公 昭63−44461（ＪＰ，Ｂ２) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsumi Nakamura 1 Kawasaki-cho, Chiba-shi Kawasaki Steel Corporation Chiba Works (72) Inventor Yoshihisa Kitano 1 Kawasaki-cho Chiba City Kawasaki Steel Corporation Chiba Works (72) Inventor Kazuya Higuchi 1 Kawasaki-cho, Chiba-shi Kawasaki Steel Corporation Chiba Works (56) References Japanese Utility Model 1-177050 (JP, U) JP-B 63-44461 (JP, B2)
Claims (1)
製の連続鋳造用鋳型において、メニスカス近傍の高温部
に位置する銅板固定用ボルト径を他の固定用ボルト径よ
り小径化すると共に、該メニスカス近傍の冷却用溝間隔
を均等化したことを特徴とする連続鋳造用鋳型。1. Copper having a groove for cooling water conduction formed on the back surface
In the continuous casting mold made of, the diameter of the copper plate fixing bolt located in the high temperature part near the meniscus is made smaller than the other fixing bolt diameter, and the cooling groove interval near the meniscus is made uniform. For continuous casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3008475A JP2893662B2 (en) | 1991-01-28 | 1991-01-28 | Continuous casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3008475A JP2893662B2 (en) | 1991-01-28 | 1991-01-28 | Continuous casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04251638A JPH04251638A (en) | 1992-09-08 |
| JP2893662B2 true JP2893662B2 (en) | 1999-05-24 |
Family
ID=11694143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3008475A Expired - Fee Related JP2893662B2 (en) | 1991-01-28 | 1991-01-28 | Continuous casting mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2893662B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581239A (en) * | 2012-03-27 | 2012-07-18 | 中冶南方工程技术有限公司 | Wide-surface copper plate of crystallizer for high-efficiency slab caster |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100490985B1 (en) * | 2000-11-25 | 2005-05-24 | 주식회사 포스코 | Funnel Type Copper Plate For Continuous Casting Mold |
| KR100490742B1 (en) * | 2002-09-12 | 2005-05-24 | 주식회사 포스코 | Method for decreasing crack of mold copperplate for slab casting |
| DE10308434A1 (en) * | 2003-02-27 | 2004-09-09 | Sms Demag Ag | Optimized mounting of mold plates |
| DE102006051171A1 (en) * | 2006-10-26 | 2008-04-30 | Sms Demag Ag | Continuous casting mold for casting steel comprises mold plates containing cooling channels and connected to a water tank using screw elements |
| WO2015146967A1 (en) * | 2014-03-25 | 2015-10-01 | 三島光産株式会社 | Mold for continuous casting |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4700859A (en) * | 1986-08-11 | 1987-10-20 | Owens-Illinois Closure Inc. | Tamper indicating closure |
| JPH0451011Y2 (en) * | 1988-05-27 | 1992-12-01 |
-
1991
- 1991-01-28 JP JP3008475A patent/JP2893662B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581239A (en) * | 2012-03-27 | 2012-07-18 | 中冶南方工程技术有限公司 | Wide-surface copper plate of crystallizer for high-efficiency slab caster |
| CN102581239B (en) * | 2012-03-27 | 2014-01-01 | 中冶南方工程技术有限公司 | Wide-surface copper plate of crystallizer for high-efficiency slab caster |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04251638A (en) | 1992-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2893662B2 (en) | Continuous casting mold | |
| JP4808196B2 (en) | Continuous casting mold | |
| TWI522190B (en) | Fluid cooled mould for continuous casting of metals | |
| JP3930761B2 (en) | Tube type continuous casting mold | |
| JP2971747B2 (en) | Mold wall of continuous casting mold | |
| KR20040058588A (en) | Mold for continuous casting slab | |
| JP4611350B2 (en) | Continuous casting mold | |
| JP3389449B2 (en) | Continuous casting method of square billet | |
| JP2009006348A (en) | Continuous casting mold | |
| JP2010188399A (en) | Mold for continuous casting | |
| JP5796149B1 (en) | Continuous casting mold | |
| CN216540756U (en) | Slab crystallizer copper plate structure | |
| JPS6344460B2 (en) | ||
| JPH01284463A (en) | Short wall side plate for continuous casting machine for cast strip | |
| JPH1058093A (en) | Method for continuously casting steel | |
| JP7160026B2 (en) | Dummy bar for continuous casting machine, continuous steel casting method, steel slab manufacturing method, and steel product manufacturing method. | |
| JPH09271902A (en) | Tube mold for continuously casting square billet | |
| JPH089087B2 (en) | Mold for continuous casting | |
| JPS6027558Y2 (en) | Continuous casting mold | |
| JPS5838639A (en) | Continuous casting device for metal | |
| JPH11290995A (en) | Casting mold for continuous casting which makes casting mold surface temperature uniform | |
| JPH0810448Y2 (en) | Casting mold equipment | |
| JP3493966B2 (en) | Continuous casting mold | |
| JP3886774B2 (en) | Continuous casting mold considering slab casting radius change due to shrinkage and continuous casting equipment using the same | |
| JPH0337819B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |