JPH01181961A - Apparatus for controlling molten metal flow rate - Google Patents
Apparatus for controlling molten metal flow rateInfo
- Publication number
- JPH01181961A JPH01181961A JP386888A JP386888A JPH01181961A JP H01181961 A JPH01181961 A JP H01181961A JP 386888 A JP386888 A JP 386888A JP 386888 A JP386888 A JP 386888A JP H01181961 A JPH01181961 A JP H01181961A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- molten metal
- rotating
- flow rate
- sleeve
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 50
- 239000011449 brick Substances 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 10
- 239000011261 inert gas Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000004901 spalling Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、取鍋及びタンデイツシュ等の溶融金属容器か
ら溶融金属を注出する場合に使用される、溶融金属流量
制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a molten metal flow rate control device used when pouring molten metal from a molten metal container such as a ladle or a tundish.
従来の技術
溶融金属容器から溶融金属を注出する場合、溶融金属の
流量制御機構として、ノズルストッパー方式、及びスラ
イドバルブ（スライディングノズル）方式がよく知られ
ている。BACKGROUND ART When pouring molten metal from a molten metal container, a nozzle stopper system and a slide valve (sliding nozzle) system are well known as mechanisms for controlling the flow rate of molten metal.
発明が解決しようとする問題点
前記従来方式の諸欠点は下記のとおシであることが知ら
れている：
■ ノズルストッパ一方式
１）溶融金属容器の高さとはぼ同じ長さの、ノズルスト
ッパー１が必要なため、耐火物のコストが高い、
２）第１７図（スライドバルブ及びノズルストッパーの
ストロークと開口面積の関係図）に示す様にノズルスト
ッパー１のわずかな動きで、流量変化が大きいため流量
制御性が劣る、３）ノズル２２内／′２−１が、溶融金
属中に漬かっているため、ノズルストッパー１の途中が
溶損あるいは熱スポーリング等により上下ＶＣ切れるト
ラブルが生じ、流量制御不能となることがある。Problems to be Solved by the Invention It is known that the drawbacks of the conventional method described above are as follows: ■ Nozzle stopper One-way type 1) The nozzle stopper is approximately the same length as the height of the molten metal container. 2) As shown in Figure 17 (relationship between stroke and opening area of slide valve and nozzle stopper), a slight movement of nozzle stopper 1 causes a large change in flow rate. 3) Since the inside of the nozzle 22/'2-1 is immersed in the molten metal, trouble occurs where the upper and lower VCs are cut due to melting damage or thermal spalling in the middle of the nozzle stopper 1, resulting in poor flow rate control. It may get out of control.
■ スライドバルブ方式
１）取鍋の場合、溶融金属を取鍋に受けてから溶融金属
を注出（以下鋳込）するまでに１溶融金属の成分調整及
び温度調整等により、数十分〜数時間の時間を要した。■ Slide valve method 1) In the case of a ladle, from the time the molten metal is received into the ladle until the molten metal is poured out (hereinafter referred to as casting), it takes several tens of minutes to several minutes depending on the composition adjustment and temperature adjustment of the molten metal. It took hours.
そのため、ノズル２内で溶鋼が、凝固しない様、ノズル
２内に砂等の充填材を充填する必要があり、作業能率が
劣った。充填材は、スライドバルブを開にした場合、先
ず充填材が流出し、その後に溶融金属が流出し自然開孔
する様考えられたものであるが、充填材に溶融金属が浸
透、凝固し、自然開孔しないことがある、そのため、酸
素ランスにより強制開孔する必要があり、危険な作業を
強いられている現状である。Therefore, it was necessary to fill the nozzle 2 with a filler such as sand to prevent the molten steel from solidifying within the nozzle 2, resulting in poor work efficiency. The filling material was designed so that when the slide valve was opened, the filling material would flow out first, and then the molten metal would flow out and open the pores naturally, but the molten metal penetrated into the filling material and solidified. The hole may not open naturally, so it is necessary to forcibly open the hole using an oxygen lance, which is a dangerous task.
２）タンデイツシュの場合、溶融金属の品質上、充填材
等の使用は、出来ず、溶融金属が規定量たまった後に開
孔する様耐火物又は鉄パイプ等をノズル上部外周に、施
工する必要があり、作業性が悪く、又コストも高い。2) In the case of tundish, it is not possible to use fillers etc. due to the quality of the molten metal, and it is necessary to install refractory material or iron pipes, etc. around the upper part of the nozzle so that the hole will open after the specified amount of molten metal has accumulated. However, the workability is poor and the cost is high.
３）タンデイツシュの場合、耐火物又は鉄パイプ等の代
わシに第１８図に示す如く固定板３又はスライド板４よ
り不活性ガスを吹き込んでノズル内の溶融金属が凝固す
るのを防ぐ方法があるが、この場合は、不活性ガスを導
入する構造が複雑となり、コストが高い。3) In the case of tandem pipes, instead of using refractories or iron pipes, there is a method to prevent the molten metal in the nozzle from solidifying by blowing inert gas through the fixed plate 3 or slide plate 4 as shown in Figure 18. However, in this case, the structure for introducing the inert gas is complicated and the cost is high.
又、上述の方法に於ても１００％の成功率ではなくノズ
ル内の溶融金属が凝固し、鋳込スタートが出来ない場合
がある。Further, even with the above method, the success rate is not 100%, and there are cases where the molten metal in the nozzle solidifies, making it impossible to start casting.
尚鋳造中に浸漬ノズルを交換する場合でも、ノズルを閉
にするため、上記と同様である。Note that even when replacing the immersion nozzle during casting, the nozzle is closed, so the procedure is the same as above.
４）鋳造中誤動差又は必要性によりノズルを全閉にする
ことがあるが、長時間全閉にするとノズル内に溶融金属
が凝固するため、強制開孔が必要となる。4) The nozzle may be fully closed due to errors or necessity during casting, but if it is fully closed for a long time, the molten metal will solidify inside the nozzle, making it necessary to forcibly open the hole.
５）接合部が多く、耐火物外部のエアー巻き込みの危険
性が高いため、製品品質に悪影響を及ぼす可能性が高い
。5) Since there are many joints and there is a high risk of air being trapped outside the refractory, there is a high possibility that product quality will be adversely affected.
又、最近の新技術として、第１９図に示すロータリーバ
ルブがあり、この方式の特徴は、ローター２０．ドーム
ノズル２１よシ構成され、ドームノズル２１を、タンデ
イツシュ２３に固定シ、四−ター２０を回転させること
により、溶融金属を流量制御するものであるが、この種
方式も次の欠点がある。Also, as a recent new technology, there is a rotary valve shown in Fig. 19, and the feature of this system is that the rotor 20. The dome nozzle 21 is fixed to the tundish 23 and the quadrature 20 is rotated to control the flow rate of the molten metal, but this type of system also has the following drawbacks.
１）ローター２０が溶融金属中に漬かっているため、口
・−ター２０の途中が溶損あるいけ、熱スポーリング等
圧より、上下に切れるトラブルが生じ、流量制御不能と
なることがある。1) Since the rotor 20 is immersed in molten metal, the middle of the rotor 20 may be damaged by melting, and thermal spalling and equal pressure may cause problems such as vertical cuts, making it impossible to control the flow rate.
２）、ローター２０の長さが、タンデイツシュ２３の高
さ以上の長さになるため、コストが高い。2) Since the length of the rotor 20 is longer than the height of the tundish 23, the cost is high.
３）ノズル２２を全閉にした時、ローター２０のノズル
２２内に溶融金属が残るため、ノズル２２内で溶融金属
が凝固し、再鋳込が、不可能となる場合がある。3) When the nozzle 22 is fully closed, molten metal remains in the nozzle 22 of the rotor 20, which may solidify the molten metal in the nozzle 22, making re-casting impossible.
４）ローター２０が大きく、重いため、ローター２０の
ハンドリング及び、セット時の作業性が悪い。4) Since the rotor 20 is large and heavy, handling of the rotor 20 and workability during setting are poor.
問題点を解決するだめの手段
本発明者等は従来方式の諸欠陥を解決すべく種々検討、
実験の結果、本発明の開発に成功したものであり、本発
明の技術的桝成は前記特許請求の範囲各項に明記したと
おりであるが、本発明の具体的数例を示す添付図面に基
いて更に詳説する。Means to Solve the Problems The inventors of the present invention have conducted various studies to solve the various deficiencies of the conventional system.
As a result of experiments, the present invention has been successfully developed, and the technical features of the present invention are as specified in each claim. I will explain in more detail later.
第１図に示す如く、溶融金属容器５の底部又は、Ｌ１１
］部にモルタルにて固定されたノズル受れんが６にスリ
ーブ７をモルタルにて固定し、スリーブ７の内面テーパ
一部又はストレート部に密接し、且つ回動自在にケース
１０によシ支持された回転ノズル８より構成され、回転
ノズル８を回転させることによシ溶融金属の流量制御を
行うものである。As shown in FIG. 1, the bottom of the molten metal container 5 or L11
] The sleeve 7 is fixed with mortar to the nozzle receiving brick 6 fixed with mortar to the nozzle receiving brick 6, which is in close contact with the inner taper part or the straight part of the sleeve 7 and is rotatably supported by the case 10. It is composed of a rotating nozzle 8, and by rotating the rotating nozzle 8, the flow rate of molten metal is controlled.
次に本発明を第１図よυ第５図に基づいて具体的に説明
する。回転ノズル８は第１図及び第５図に示す如く、円
錐台状の形状をしており、下部には、１ケ所以上の駆動
用フラット面を設け、側面テーパ一部より下方へＬ字形
のノズル孔９を設けてあり、テーパ一部の該ノズル孔９
がら溶融金属が流入する様スリーブ７及びノズル受れん
が６にけ凹部２５が設けである。Next, the present invention will be specifically explained based on FIGS. 1 to 5. As shown in FIGS. 1 and 5, the rotating nozzle 8 has a truncated conical shape, and has one or more driving flat surfaces at its lower part, and an L-shaped section extending downward from a part of the side taper. A nozzle hole 9 is provided, and a part of the nozzle hole 9 is tapered.
A recess 25 is provided in the sleeve 7 and the nozzle receiving brick 6 so that molten metal can flow into the sleeve 7 and the nozzle receiving brick 6.
前記凹部とは、第３図及び第４図に示す如く、ノズル受
れんが６及びスリーブ７の上面から側面にかけて少なく
とも１個所設けた、切シ欠き部であり、直線カットある
いけ曲線カットを問わす又形状に関わらず切り欠いた部
分を言う。スリーブ７Ｆｉ、回転しない様モルタルにて
ノズル受れんが６に固定される。回転ノズル８とスリー
ブ７の密接面に溶融金域が入り込まない様密接させるた
め、且つ該回転ノズル８を回動自在に保持するためにケ
ース１０で支承しである。ケース１ｏの外周には、回転
力を伝達すべく歯車又はリンク等の伝達手段（図示せず
）が設けられており、電切モーター、油圧モーターある
いは油圧シリンダー等の駆動装置（図示せず）により駆
動し、制御する。As shown in FIGS. 3 and 4, the recess is a notch provided in at least one place from the top surface to the side surface of the nozzle receiving brick 6 and sleeve 7, and can be cut in a straight line or in a curved line. It also refers to a cut-out part regardless of its shape. The sleeve 7Fi is fixed to the nozzle receiving brick 6 with mortar so that it does not rotate. The rotary nozzle 8 and the sleeve 7 are supported by a case 10 in order to bring them into close contact with each other to prevent the molten metal from entering the contact surfaces thereof, and to hold the rotary nozzle 8 rotatably. A transmission means (not shown) such as a gear or a link is provided on the outer periphery of the case 1o to transmit rotational force, and a drive device (not shown) such as an electric cutter motor, a hydraulic motor, or a hydraulic cylinder is used to transmit rotational force. Drive and control.
次にこの様に構成された、本発明の制御機構による使用
方法を説明する。先ず回転ノズル８を回転し、スリーブ
７及びノズル受れんが６の凹部２５以外の場所へノズル
孔９を移動させ、ノズル孔９を塞いだ状態とし、溶融金
属を溶融金属容器へ受ける。Next, a method of using the control mechanism of the present invention configured as described above will be explained. First, the rotary nozzle 8 is rotated to move the nozzle hole 9 to a location other than the recess 25 of the sleeve 7 and nozzle receiving brick 6, thereby closing the nozzle hole 9 and receiving molten metal into the molten metal container.
鋳込みは、該回転ノズル８を回転し、ノズル孔９をスリ
ーブ７及びノズル受れんが６の凹部２５に合せることに
よって、溶融金属を流出させる。In casting, the rotary nozzle 8 is rotated to align the nozzle hole 9 with the recess 25 of the sleeve 7 and the nozzle receiving brick 6, thereby causing the molten metal to flow out.
流量制御は、第４図に示す如く、回転ノズル８を回転さ
せノズル孔９をスリーブ７の凹部２５エツジによって塞
ぐ（絞る）ことにより制御する。The flow rate is controlled by rotating the rotary nozzle 8 and closing (squeezing) the nozzle hole 9 with the edge of the recess 25 of the sleeve 7, as shown in FIG.
又、この様な流量制御は第２図のＡ部及びＢ部の２ケ所
で可能である。Further, such flow rate control is possible at two locations, A part and B part in FIG.
以上本発明の一実施例に基づき説明したが、スリーブ７
及びノズル受れんが６の凹部の大きさけ、回転ノズル８
のノズル孔９が塞がらない大きさとし、大きく取っても
良い。Although the explanation has been made based on one embodiment of the present invention, the sleeve 7
and the size of the recess of the nozzle receiving brick 6, the rotating nozzle 8
The nozzle hole 9 may be made large so that it does not become clogged.
又第１６図に示す如く、該凹部の代りにノズル受れんが
６及びスリーブ７に開口孔１８．１９を設けても良い、
又、ノズル孔９及び凹部２５は１個所にかぎらず数個所
とすることも可能である。Further, as shown in FIG. 16, openings 18 and 19 may be provided in the nozzle receiving brick 6 and the sleeve 7 instead of the recess, and the nozzle hole 9 and the recess 25 may be provided not only in one place but in several places. It is also possible.
回転ノズル８の外形形状は、第６図、・第７図に示す如
く、外周がストレート形状（円柱状）８ａ。As shown in FIGS. 6 and 7, the rotary nozzle 8 has a straight outer circumference (cylindrical shape) 8a.
逆テーパー形状（逆円錐台状）８ｂとしても良い。It may also have an inverted tapered shape (inverted truncated conical shape) 8b.
又、ノズル孔９の形状は、第８図、第９図ａ及−楕円９
ｂとしても良い。In addition, the shape of the nozzle hole 9 is as shown in FIGS.
It may also be used as b.
更にスリーブ７の形状は、第１０図に示す如く、回転ノ
ズル８の上部をおおう様な形状７ｃとすることもできる
。Furthermore, the shape of the sleeve 7 can be made into a shape 7c that covers the upper part of the rotary nozzle 8, as shown in FIG.
回転ノズル８とスリーブ７及びノズル受れんが６との組
合せは、前述した回転ノズル８．スリーブ７及びノズル
受れんが６との組合せの他に第１１図に示す如く、回転
ノズル８及びノズル受れんが６Ｃとの組合せとすること
もできる。The combination of the rotating nozzle 8, the sleeve 7, and the nozzle receiving brick 6 is the same as the above-mentioned rotating nozzle 8. In addition to the combination of the sleeve 7 and the nozzle receiving brick 6, as shown in FIG. 11, a combination of the rotating nozzle 8 and the nozzle receiving brick 6C may also be used.
回転ノズル８の支持装置の一実施例を第１２図に示す。An embodiment of a support device for the rotating nozzle 8 is shown in FIG.
回転を回転ノズル８に与えられる様回転ノズルの下部フ
ラット面で保持したケース１ｏを回動自在に外ケース１
１により保持し、ボルト・ナツト１２によシ溶融金属蓉
器５に溶接又はボルト止めされた固定ベース１５に固定
される。ケース１０の外周には歯車を切っており、外ケ
ース１１との間に減速用歯車１３を設は更にその外側に
’Ｆｉ、ウオームギヤー１４を設け、ウオームギヤー罠
は！＃モモ−−又は油圧モーター等の駆動源（図示せず
）を設けることにより、回転ノズル８の回転制御を行う
ものである。The case 1o, which is held by the lower flat surface of the rotary nozzle so that rotation is applied to the rotary nozzle 8, is rotatably attached to the outer case 1.
1 and is fixed to a fixed base 15 which is welded or bolted to the molten metal container 5 by bolts and nuts 12. A gear is cut on the outer periphery of the case 10, and a reduction gear 13 is installed between it and the outer case 11, and a worm gear 14 is installed on the outside of the gear, and the worm gear trap is! The rotation of the rotary nozzle 8 is controlled by providing a drive source (not shown) such as a motor or a hydraulic motor.
次に中間ノズル１６を組込んだ実施例を第１３図に基づ
いて説明する。Next, an embodiment incorporating the intermediate nozzle 16 will be described based on FIG. 13.
回転ノズル８．スリーブ７、及びノズル受れんが６け第
１図に示すものと同様であるが、該回転ノズル８の下部
に中間ノズル１６を設けた与各牟機栴である。Rotating nozzle 8. The sleeve 7 and six nozzle receiving bricks are similar to those shown in FIG.
中間ノズル１６は、ケース１７により、回転ノズル８へ
密接され且つ回転ノズル８が回動しても動かない様固定
されている。The intermediate nozzle 16 is brought into close contact with the rotating nozzle 8 by a case 17 and is fixed so as not to move even if the rotating nozzle 8 rotates.
中間ノズル１６と回転ノズル８との接合面は平面又は、
第１４図、第１５図に示す如く、球面８ｅ、２４ａ又は
１個以上の凸凹８ｆ、 ２４ｂの嵌合形状としても良
い。The joint surface between the intermediate nozzle 16 and the rotating nozzle 8 is a flat surface or
As shown in FIGS. 14 and 15, the fitting shape may be a spherical surface 8e, 24a or one or more projections and depressions 8f, 24b.
第１６図は本発明の他の実施態様であり、前述した凹部
２５を設けることなく、ノズル受れんが６及びスリーブ
７に開口孔１８及び１９をそれぞれ穿孔し、回転ノズル
８のノズル孔９と連通ずる如き機構としてもよく、その
作動は前述の例と略々同様である。FIG. 16 shows another embodiment of the present invention, in which opening holes 18 and 19 are bored in the nozzle receiving brick 6 and sleeve 7, respectively, and communicate with the nozzle hole 9 of the rotating nozzle 8, without providing the recess 25 described above. A similar mechanism may be used, and its operation is substantially the same as in the previous example.
尚、本機構は、浸漬ノズル、ロングノズル等の下部ノズ
ルを使用する場合に有効そある。Note that this mechanism is effective when using a lower nozzle such as a submerged nozzle or a long nozzle.
発明の効果
本発明の流量制御機構によると、前述の如き、従来技術
の問題点は全て解消され、特に次の点で優れている。Effects of the Invention According to the flow rate control mechanism of the present invention, all of the problems of the prior art as described above are solved, and it is particularly excellent in the following points.
（１） 鋳込スタート時には、ノズル孔９内に溶融金
属が入らないため、充填材が必要ないばかシではなく、
不活性ガスを吹き込む必要がない。従って、コストが安
く、安定した操業が可能となる。(1) At the start of casting, no molten metal enters the nozzle hole 9, so no filler is required;
No need to blow inert gas. Therefore, costs are low and stable operation is possible.
１２１ 鋳込中に浸漬ノズル等を交換する場合でも、
ノズルを閉忙した時ノズル孔９内に溶融金属が入らない
ため、前項（１）と同様の効果がある。121 Even when replacing the immersion nozzle etc. during casting,
Since molten metal does not enter the nozzle hole 9 when the nozzle is closed, the same effect as in the previous item (1) can be obtained.
（３）スライドバルブと比較し、接合部が少ないため、
外部のエアー巻き込みが少なくなり、製品品質が向上す
る。(3) Compared to slide valves, there are fewer joints, so
External air entrainment is reduced, improving product quality.
（４） コンノξクトであり、耐火物使用量が少なく
なるため、コストが安くなる。又耐火物交換作業も容易
である。(4) Since it is a concrete structure and the amount of refractories used is reduced, the cost is reduced. Also, the refractory replacement work is easy.
（５）流量制御が第２図に示す如（Ａ、Ｂ部２個所で可
能であるため、従来技術より流量・制御性が良く、寿命
も長い。(5) Since the flow rate can be controlled at two locations, A and B, as shown in FIG. 2, the flow rate and controllability are better than in the prior art, and the service life is longer.
第１図〜第１６図は本発明装置の具体例を示す概略図、
第１７図はスライドバルブ及びノズルストシバ一方式の
ストロークと開口面積の関係を示すグラス、第１８図及
び第１９図は公知例の概略図であり、図中、５：溶融金
属容器、６：ノズル受れんが、７：スリーブ、８：回転
ノズル、９：ノズル孔、１０．１７ ：ケース、１１：
外ケース。
１２：ボルト・ナラ）、１３：減速用歯車、１４：ウオ
ームギャー、１５：固定ベース、１６：中間ノズル、２
０：ローター、２１：ドームノズル。
２２：開口孔、２３：タンデイツシ” ｔ ２４ ａ
ｔ ｔ） ：嵌合体、２５：凹部。
第１図
第２図
第４圀
第５図
ａ ｂ
ａ’ ｂ’
第６図
第７図
第１１図
第１２図
第１３図1 to 16 are schematic diagrams showing specific examples of the device of the present invention,
FIG. 17 is a glass showing the relationship between the stroke and opening area of a slide valve and nozzle holder, and FIGS. 18 and 19 are schematic diagrams of known examples, in which 5: molten metal container, 6: nozzle receiver. Brick, 7: Sleeve, 8: Rotating nozzle, 9: Nozzle hole, 10.17: Case, 11:
outer case. 12: Bolt/Nara), 13: Reduction gear, 14: Worm gear, 15: Fixed base, 16: Intermediate nozzle, 2
0: rotor, 21: dome nozzle. 22: Opening hole, 23: Tandyshi”t 24 a
t t): Fitting body, 25: Recess. Figure 1 Figure 2 Figure 4 Figure 5 a b a'b' Figure 6 Figure 7 Figure 11 Figure 12 Figure 13
Claims (7)
属流量制御装置において、回転ノズル、ノズル受れんが
及びスリーブ又は回転ノズル、ノズル受れんがからなり
、前記ノズル受れんが及びスリーブの少なくとも一方に
１箇以上の凹部又は開口孔部を設け、少なくとも１個の
ノズル孔を貫通した回転ノズルの前記ノズル開口面を、
前記ノズル受れんが又はスリーブの内周面に回動自在に
密接、支持し、該回転ノズルに回転機構を具備すること
を特徴とする溶融金属流量制御装置。(1) A molten metal flow rate control device that can be disposed at the bottom or side of a molten metal container, comprising a rotating nozzle, a nozzle receiving brick, and a sleeve, or a rotating nozzle, a nozzle receiving brick, and at least one of the nozzle receiving brick and the sleeve. The nozzle opening surface of the rotating nozzle is provided with one or more recesses or openings and passes through at least one nozzle hole,
A molten metal flow rate control device, characterized in that the nozzle receiving brick or sleeve is closely and rotatably supported on the inner circumferential surface of the nozzle receiving brick or sleeve, and the rotating nozzle is provided with a rotating mechanism.
または円柱形である請求項１記載の溶融金属流量制御装
置。(2) The shape of the rotating nozzle is a truncated cone or an inverted truncated cone;
The molten metal flow rate control device according to claim 1, which has a cylindrical shape.
とした請求項１及び２記載の溶融金属流量制御装置。(3) The molten metal flow rate control device according to Claims 1 and 2, wherein the nozzle hole cross section of the rotating nozzle is circular or elliptical.
した請求項１〜３の何れかに記載の溶融金属流量制御装
置。(4) The molten metal flow rate control device according to any one of claims 1 to 3, wherein an intermediate nozzle is closely fixed to the lower end surface of the rotating nozzle.
面又は凹凸を有する請求項１〜４の何れかに記載の溶融
金属流量制御装置。(5) The molten metal flow rate control device according to any one of claims 1 to 4, wherein the fitting surfaces of the rotating nozzle and the intermediate nozzle have a flat surface, a spherical surface, or an uneven surface.
構とした請求項１〜５の何れかに記載の溶融金属流量制
御装置。(6) The molten metal flow rate control device according to any one of claims 1 to 5, wherein the rotary nozzle is supported by a rotation control case.
属流量制御装置において、円錐台形回転ノズル、ノズル
受れんが及びスリーブ又は該回転ノズル、ノズル受れん
がからなり、前記ノズル受れんが及びスリーブに１箇以
上の開口孔部を設け、少なくとも１個のノズル孔を貫通
した該回転ノズルの前記ノズル開口面を、前記ノズル受
れんが又はスリーブの内周面に回動自在に密接、支持し
、該回転ノズルに回転機構を具備することを特徴とする
溶融金属流量制御装置。(7) A molten metal flow rate control device that can be disposed at the bottom or side of a molten metal container, comprising a truncated conical rotating nozzle, a nozzle receiving brick, and a sleeve, or the rotating nozzle, the nozzle receiving brick, and the nozzle receiving brick and sleeve. one or more openings are provided in the rotary nozzle, and the nozzle opening surface of the rotary nozzle passing through at least one nozzle hole is closely and rotatably supported on the inner peripheral surface of the nozzle receiving brick or sleeve, A molten metal flow rate control device characterized in that the rotating nozzle is equipped with a rotating mechanism.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP386888A JPH01181961A (en) | 1988-01-13 | 1988-01-13 | Apparatus for controlling molten metal flow rate |
| PCT/JP1989/000550 WO1990014907A1 (en) | 1988-01-13 | 1989-06-01 | Apparatus for controlling flow rate of molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP386888A JPH01181961A (en) | 1988-01-13 | 1988-01-13 | Apparatus for controlling molten metal flow rate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01181961A true JPH01181961A (en) | 1989-07-19 |
| JPH0251706B2 JPH0251706B2 (en) | 1990-11-08 |
Family
ID=11569169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP386888A Granted JPH01181961A (en) | 1988-01-13 | 1988-01-13 | Apparatus for controlling molten metal flow rate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01181961A (en) |
-
1988
- 1988-01-13 JP JP386888A patent/JPH01181961A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0251706B2 (en) | 1990-11-08 |
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