JPS62146553U - - Google Patents
Info
- Publication number
- JPS62146553U JPS62146553U JP3320486U JP3320486U JPS62146553U JP S62146553 U JPS62146553 U JP S62146553U JP 3320486 U JP3320486 U JP 3320486U JP 3320486 U JP3320486 U JP 3320486U JP S62146553 U JPS62146553 U JP S62146553U
- Authority
- JP
- Japan
- Prior art keywords
- discharge port
- molten metal
- nozzle
- continuous casting
- area
- 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
- 238000007654 immersion Methods 0.000 claims description 7
- 238000009749 continuous casting Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
第１図〜第４図は、本考案の連続鋳造用浸漬ノ
ズルの一実施例を示したものである。第５図及び
第６図は、相似則を考慮した水モデル実験によつ
て確認した、本考案の連続鋳造用浸漬ノズルのフ
ローパターンを示したものである。第７図は、本
考案の連続鋳造用浸漬ノズルの湯面変動の低減効
果の説明図である。第８図及び第９図は、従来の
浸漬ノズルの説明図であり、第９図は第８図のＸ
―Ｘ断面図である。第１０図及び第１１図は、従
来のボツクスノズルの説明図であり、第１１図は
第１０図のＸ―Ｘ断面図である。第１２図は従来
の浸漬ノズルにおけるノズル胴部内面積α（一定
）と吐出口面積βとの比率β／αと計算平均吐出
速度Ｖｃａｌとモールド短辺衝突速度ＵＳとの比
率ＵＳ／Ｖｃａｌとの関係の説明図である。第１
３図及び第１４図は、相似則を考慮した水モデル
実験によつて確認した、（β／α）＜０．９のノ
ズル（小口径ノズル）及び（β／α）≧０．９の
ノズル（大口径ノズル）のフローパターンを拡大
して示したもので、第１５図は大口径ノズルの吐
出口近傍のフローパターンを拡大して示したもの
である。
１…筒体、２…内部下端平面、３…吐出口、４
…従来ノズル、５…滞留室、６…箱体、７…吐出
小孔、８…ボツクスノズル、９…小口径ノズル、
１０…大口径ノズル、１１…メニスカス、１２…
モールド短辺面、１３…本考案ノズル、１４…吐
出口前方部、１５…吐出口前方部の直上部、１６
…遮断壁、１７…鍔状耐火物、１８…ピン状耐火
物。
1 to 4 show an embodiment of the immersion nozzle for continuous casting of the present invention. FIGS. 5 and 6 show flow patterns of the immersion nozzle for continuous casting of the present invention, which were confirmed through water model experiments taking into account the law of similarity. FIG. 7 is an explanatory diagram of the effect of the continuous casting immersion nozzle of the present invention in reducing fluctuations in the melt level. FIGS. 8 and 9 are explanatory diagrams of conventional immersion nozzles, and FIG.
-X sectional view. 10 and 11 are explanatory diagrams of a conventional box nozzle, and FIG. 11 is a sectional view taken along line XX in FIG. 10. Figure 12 shows the relationship between the ratio β/α between the nozzle body internal area α (constant) and the discharge port area β and the ratio US/Vcal between the calculated average discharge speed Vcal and the mold short side collision speed US in a conventional immersion nozzle. FIG. 1st
Figures 3 and 14 show nozzles with (β/α) < 0.9 (small diameter nozzles) and nozzles with (β/α) ≧0.9, which were confirmed through water model experiments taking into account the similarity law. (Large-diameter nozzle) FIG. 15 is an enlarged view of the flow pattern near the discharge port of the large-diameter nozzle. 1... Cylindrical body, 2... Internal lower end plane, 3... Discharge port, 4
... conventional nozzle, 5 ... retention chamber, 6 ... box body, 7 ... small discharge hole, 8 ... box nozzle, 9 ... small diameter nozzle,
10...Large diameter nozzle, 11...Meniscus, 12...
Mold short side surface, 13... Nozzle of the present invention, 14... Discharge port front part, 15... Immediately above the discharge port front part, 16
...Blocking wall, 17... Flange-shaped refractory, 18... Pin-shaped refractory.
Claims (1)
の周壁に、一対の対向する下向き溶湯吐出口を設
けてなる連続鋳造用浸漬ノズルにおいて、上記筒
体の溶湯流路面積αと上記吐出口の溶湯吐出面積
βとの比率β／αを０．９以上とすると共に上記
吐出口の上部の筒体外周に、吐出口前方部とこの
直上部とを遮断する遮断壁を設けたことを特徴と
する連続鋳造用浸漬ノズル。 In an immersion nozzle for continuous casting, in which a pair of facing downward molten metal discharge ports is provided on the peripheral wall above the internal lower end plane of a cylinder whose lower end is closed, the molten metal flow path area α of the cylinder body and the diameter of the discharge port are The ratio β/α to the molten metal discharge area β is set to 0.9 or more, and a blocking wall is provided on the outer periphery of the cylindrical body at the upper part of the discharge port to block the front part of the discharge port from the area directly above the discharge port. Immersion nozzle for continuous casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3320486U JPS62146553U (en) | 1986-03-10 | 1986-03-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3320486U JPS62146553U (en) | 1986-03-10 | 1986-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62146553U true JPS62146553U (en) | 1987-09-16 |
Family
ID=30840595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3320486U Pending JPS62146553U (en) | 1986-03-10 | 1986-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62146553U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004344900A (en) * | 2003-05-20 | 2004-12-09 | Nippon Steel Corp | Dipping nozzle and continuous casting method using the same |
| WO2019031660A1 (en) * | 2017-08-08 | 2019-02-14 | 주식회사 포스코 | Nozzle |
-
1986
- 1986-03-10 JP JP3320486U patent/JPS62146553U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004344900A (en) * | 2003-05-20 | 2004-12-09 | Nippon Steel Corp | Dipping nozzle and continuous casting method using the same |
| WO2019031660A1 (en) * | 2017-08-08 | 2019-02-14 | 주식회사 포스코 | Nozzle |
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