JPH022520Y2 - - Google Patents
Info
- Publication number
- JPH022520Y2 JPH022520Y2 JP1983054380U JP5438083U JPH022520Y2 JP H022520 Y2 JPH022520 Y2 JP H022520Y2 JP 1983054380 U JP1983054380 U JP 1983054380U JP 5438083 U JP5438083 U JP 5438083U JP H022520 Y2 JPH022520 Y2 JP H022520Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- cooling
- cross
- spacer
- cooling water
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 244000126211 Hericium coralloides Species 0.000 claims description 4
- 238000009749 continuous casting Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
【考案の詳細な説明】
本考案は超音波振動する連続鋳造用鋳型の冷却
装置に関するものであり、その目的とするところ
は鋳型の薄肉部分における冷却水の流速をスペー
サを配列することにより、供給側の鋳型下部と
ほゞ同じにし、鋳型の鋳造方向に亘り鋳型を均一
に冷却することにより良好な鋳片を得るところに
ある。[Detailed description of the invention] The present invention relates to a cooling device for continuous casting molds that vibrates ultrasonically.The purpose of this invention is to control the flow rate of cooling water in the thin-walled parts of the mold by arranging spacers. The purpose is to cool the mold uniformly in the casting direction of the mold, thereby obtaining a good slab.
連続鋳造法において、鋳型は溶鋼や鋳片に接す
る面を熱伝導の良い銅または銅合金で形成し、内
部に冷却水の通路を設け通路内を高速冷却水を通
すことにより、鋳型内溶鋼の冷却を促進してい
る。 In the continuous casting method, the surface of the mold that comes into contact with the molten steel or slab is made of copper or copper alloy, which has good thermal conductivity, and cooling water passages are provided inside the mold, and by passing high-speed cooling water through the passages, the molten steel inside the mold is cooled. It promotes cooling.
鋳型内の冷却は、鋳型上部の溶鋼上面近傍で
は、鋳片が鋳型壁面と密着しているため、冷却技
術が不適切であれば鋳型内において初期の凝固シ
エル厚みが不均一になり、これに起因した割れが
発生するため、鋳片の表面品質の重大な影響を及
ぼす。また鋳型内壁に溶鋼が焼着するのを防ぐた
め、従来鋳片と鋳型の間に、焼付き防止剤を用い
かつ鋳型に引抜き方向と平行な振動を与えてい
る。しかしながら鋳型に振動を与えた場合、鋳片
に表面欠陥が発生し易く、歩留りが著しく低下す
るという問題を与えているため適切な振動手段が
特に強く望まれている。 When cooling inside the mold, the slab is in close contact with the mold wall near the upper surface of the molten steel at the top of the mold, so if the cooling technique is inappropriate, the initial solidified shell thickness within the mold will be uneven. Due to the occurrence of cracks, the surface quality of the slab has a significant impact. Furthermore, in order to prevent molten steel from sticking to the inner wall of the mold, an anti-seize agent is conventionally used between the slab and the mold, and vibrations are applied to the mold parallel to the drawing direction. However, when the mold is subjected to vibration, surface defects are likely to occur in the slab, resulting in a significant decrease in yield, and therefore, an appropriate vibration means is particularly strongly desired.
このため従来の鋳型の振動手段に変わり、上記
要求を満足させる手段として、鋳型内壁の溶鋼上
面近傍に接する部分の部材厚さを局部的に薄く
し、この薄肉部に超音波振動を印加する鋳型が開
発されている。上記の装置においては、鋳造方向
の鋳型断面形状が、従来鋳型に比べ溶鋼上面近傍
に接する部分の厚さが薄いため、冷却水通路断面
積が大きくなり、流速が低下し、冷却水のよどみ
を生じ、したがつて、鋳型、冷却水間の熱伝達が
小さくなり、鋳型の表面温度が高くなると共に鋳
片と鋳型の焼着によるブレークアウト発生の原因
となる。 Therefore, in place of the conventional mold vibration means, as a means to satisfy the above requirements, the thickness of the part of the inner wall of the mold that is in contact with the upper surface of the molten steel is locally reduced, and ultrasonic vibration is applied to this thin part. is being developed. In the above equipment, the cross-sectional shape of the mold in the casting direction is thinner at the part that touches the top surface of the molten steel than in conventional molds, so the cross-sectional area of the cooling water passage becomes large, the flow velocity decreases, and stagnation of the cooling water is prevented. As a result, heat transfer between the mold and the cooling water decreases, the surface temperature of the mold increases, and breakout occurs due to burning between the slab and the mold.
このような冷却状況を改善するため、鋳型の薄
肉部の形状変化に影響されこと無く、下部鋳型内
の冷却水通路断面積とほゞ同一にすることによ
り、流速一定とすれば均一な冷却を促進すること
が可能で健全な鋳片を得ることができる。 In order to improve this cooling situation, by making the cross-sectional area of the cooling water passage in the lower mold almost the same as that of the lower mold, uniform cooling can be achieved by keeping the flow rate constant, without being affected by changes in the shape of the thin-walled part of the mold. It is possible to accelerate the process and obtain sound slabs.
本考案は、このような知見にもとづき、鋳型上
部における薄肉部の冷却水通路断面積を供給側の
鋳型下部と全路にわたつてほゞ同一とするような
スペーサを、上記鋳型上部薄肉部全幅に配列する
ことによつて均一な冷却状況を維持し良好な品質
の鋳片を得ることである。 Based on this knowledge, the present invention provides a spacer that makes the cross-sectional area of the cooling water passage in the thin-walled part of the upper mold almost the same as that of the lower part of the mold on the supply side over the entire width of the thin-walled part of the mold upper part. The objective is to maintain a uniform cooling condition and obtain slabs of good quality by arranging the slabs in the following manner.
次に本考案を実施例により図面に基づいて詳細
に説明する。 Next, the present invention will be explained in detail by way of examples based on the drawings.
第１図は超音波振動鋳型の断面図で、鋳型１に
冷却水路３−１，３−２を設け、鋳型１の外壁に
取付けた冷却箱２の下部より、鋳型内部へ冷却水
を送水し、冷却箱２の上部へ排水する。鋳型上部
の溶鋼４の上面近傍における鋳型薄肉部には、ス
ペーサ５を設け、下部の冷却水路３−１と上部の
冷却水路３−２の断面積を略同一にするものであ
る。 Figure 1 is a cross-sectional view of an ultrasonic vibration mold. Cooling water channels 3-1 and 3-2 are provided in the mold 1, and cooling water is fed into the mold from the lower part of the cooling box 2 attached to the outer wall of the mold 1. , the water is drained to the top of the cooling box 2. A spacer 5 is provided in the thin part of the mold near the upper surface of the molten steel 4 in the upper part of the mold, so that the cross-sectional areas of the lower cooling water channel 3-1 and the upper cooling water channel 3-2 are made substantially the same.
第２図は鋳型薄肉部にスペーサを適用したＡ−
Ａ断面積である。鋳型１と冷却箱２との間隙にス
ペーサ５を設け、鋳型薄肉部全幅に配列するもの
である。 Figure 2 shows A- with a spacer applied to the thin wall part of the mold.
This is the cross-sectional area of A. Spacers 5 are provided in the gap between the mold 1 and the cooling box 2, and are arranged over the entire width of the thin wall portion of the mold.
第３図はＢ−Ｂ断面を表わし、鋳型下部におけ
る冷却構造を示したものである。 FIG. 3 is a BB cross section showing the cooling structure in the lower part of the mold.
本考案のスペーサの形状は特に限定されないが
好ましくは鋳型の下部の冷却水通路３−１と上部
の冷却水通路３−２の断面積が略等しくなるのが
良い。 Although the shape of the spacer of the present invention is not particularly limited, it is preferable that the cross-sectional area of the lower cooling water passage 3-1 and the upper cooling water passage 3-2 of the mold be approximately equal.
実験によると、第４図に示すように櫛歯断面の
形状が、矩形であるスペーサが冷却特性、経済性
に優れている。図ａは断面形状が矩形のスペーサ
５を示し、図ｂは銅板１と接してクツシヨン材６
を、スペーサ５に張り付け、銅板に付着するキヤ
ビテーシヨンを防止した。又図ｃは矩形のスペー
サ５に曲率Ｒを設けた例を示した。 According to experiments, a spacer having a rectangular comb tooth cross section as shown in FIG. 4 has excellent cooling characteristics and economical efficiency. Figure a shows a spacer 5 with a rectangular cross-section, and Figure b shows a cushion material 6 in contact with the copper plate 1.
was attached to the spacer 5 to prevent cavitation from adhering to the copper plate. Further, FIG. c shows an example in which a rectangular spacer 5 is provided with a curvature R.
上記のように、この考案によれば鋳型の鋳造方
向における断面変化に影響されること無く、全流
路にわたつて断面積を一定に保ち、かつスペーサ
を櫛歯断面とすることにより、冷却水の整流効果
が得られ、従来の鋳型での冷却と同程度の均一な
冷却を促進することが可能なものである。 As mentioned above, according to this invention, the cross-sectional area is kept constant throughout the entire flow path without being affected by cross-sectional changes in the casting direction of the mold, and by making the spacer have a comb-tooth cross-section, the cooling water It is possible to obtain a rectifying effect and promote uniform cooling to the same extent as cooling in a conventional mold.
第１図は本考案実施例の説明図、第２図は第１
図のＡ−Ａ断面図、第３図は第１図のＢ−Ｂ断面
図、第４図は本考案の櫛歯断面形状のスペーサの
説明図である。
１……鋳型、２……冷却箱、３……冷却水路、
４……溶鋼、５……スペーサ、６……クツシヨン
材。
Fig. 1 is an explanatory diagram of the embodiment of the present invention, and Fig. 2 is an explanatory diagram of the embodiment of the present invention.
3 is a cross-sectional view taken along line BB in FIG. 1, and FIG. 4 is an explanatory diagram of a spacer having a comb tooth cross-sectional shape according to the present invention. 1...Mold, 2...Cooling box, 3...Cooling channel,
4...molten steel, 5...spacer, 6...cushion material.
Claims (1)
の薄肉部分に超音波振動子を設けた鋳型におい
て、鋳型薄肉部に櫛歯断面の形状のスペーサを配
設したことを特徴とする超音波振動鋳型の冷却装
置。 An ultrasonic vibration mold in which an ultrasonic vibrator is provided in a thin wall portion of a member in contact with a solidification start point of molten steel of a continuous casting mold, characterized in that a spacer having a comb tooth cross section is provided in the thin wall portion of the mold. cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5438083U JPS59162146U (en) | 1983-04-12 | 1983-04-12 | Ultrasonic vibration mold cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5438083U JPS59162146U (en) | 1983-04-12 | 1983-04-12 | Ultrasonic vibration mold cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59162146U JPS59162146U (en) | 1984-10-30 |
| JPH022520Y2 true JPH022520Y2 (en) | 1990-01-22 |
Family
ID=30184724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5438083U Granted JPS59162146U (en) | 1983-04-12 | 1983-04-12 | Ultrasonic vibration mold cooling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59162146U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3411359A1 (en) * | 1984-03-28 | 1985-10-31 | Mannesmann AG, 4000 Düsseldorf | CONTINUOUS CHOCOLATE FOR ROUND OR BLOCK CROSS SECTIONS, ESPECIALLY FOR THE POURING OF LIQUID STEEL |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611156A (en) * | 1979-07-09 | 1981-02-04 | Nippon Steel Corp | Mold for continuous casting of metal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5042117Y2 (en) * | 1971-07-31 | 1975-11-29 | ||
| JPS5230335Y2 (en) * | 1972-08-09 | 1977-07-11 |
-
1983
- 1983-04-12 JP JP5438083U patent/JPS59162146U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611156A (en) * | 1979-07-09 | 1981-02-04 | Nippon Steel Corp | Mold for continuous casting of metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59162146U (en) | 1984-10-30 |
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