495401 A7 ____B7___ 五、發明說明（< ) 本發明關係一種用於調節澆鑄流率之裝置，特別是關 於澆鑄諸如鋼或鑄鐵等熔融金屬之裝置。 特別是在利用此型調節裝置之耐火總成中，諸如氬氣 惰性流體之噴射。 用於調節流率之裝置中具有一澆鑄槽道，其下游有兩 耐火板插入於其中，各有一孔口。此兩板實質上垂直於 槽道之軸，且兩板之一可以相對於他板滑動而趨向槽道 之一側。在澆鑄位置中，滑動板之開口實質上與澆鑄軸 相合，而且各板之開口相通。另一方面，在澆鑄停止位 置中，滑動板開口被移至與他板有一距離，兩板因而關 閉其相互間之開口。 在已知之調節裝置中，一種通常分佈於整個槽道週邊 之噴射機構，用以噴射該流體於槽道軸之週圍。流體之 徑向噴射因而得以均勻而與軸對稱。 然而，雖然可以使滑動板稍爲偏向他板，在該澆鑄和 停止等位置間之過渡位置，得到適中或低度的澆鑄流 率，但是熔融金屬遭遇一種阻礙，形成於滑動板開口邊 緣而與槽道軸相關。通常導致孔口之侵蝕。再者，在熔 融金屬循環區域中，在滑動板開口邊緣形成固體澱積 物。 本發明即在意於改善此項情況。 於是，涉及一種耐火總成，用於該型式的調節裝置’ 具有形成於下游的澆鑄槽道，實質上至少有兩耐火板’ 垂直於槽道軸上，並分別備有孔口。兩板之一被設計相 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) tr.i -------線 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 495401 、 A7 ______ B7 五、發明說明（> ) 對於另一板滑向槽道之一側，從實質上各孔口流通之澆 鑄位置’轉變爲各板實質上關閉其相互之孔口停止澆鑄 之位置。耐火總成實質上也具有噴射機構，在各板上游 使流體能夠以機械性配合熔融金屬，避免澱積於該循環 區域之中。 根據本發明之總括特徵，耐火總成在各板之上游具有 一實質上爲圓筒形空心形狀之內部噴咀。此噴咀之內壁 界定該澆鑄槽道。噴射機構被設計使噴射流體於實質上 與噴咀成徑向之方向，在小於3 60°之扇形角內，噴射流 體，在滑動板於關閉位置時，相對於槽道之側邊。熔融 金屬於是被所噴流體就地所擾亂，並後循環區域中之壁 上被以機械性（甚至以熱）分離。 該扇形角較佳爲小於或等於約270° ，使流體流束更爲 密集而集中於熔融金屬循環區內。對於若干用途，扇形 角較佳爲近於120° 。 根據本發明之有利適當特徵，內噴咀在實質上在橫向 之段落內具有一凹部，與澆鑄槽道內部相通，並形成小 於3 6 0°之扇形角隆起部。然後流體經由此凹部噴射。 此凹陷較佳偏有一插件，以多孔耐火材料形成，在其 中流體被噴射而趨向於、?完鏡槽道內面。 本發明之其他優點和特徵將在閱讀如下詳細說明和所 附圖式中呈現： 第1圖爲根據本發明用於調節裝置之耐火總成縱剖面 之局部示意圖； 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） I ——·-----------------訂 -------線* (請先閱讀背面之注意事項再填寫本頁) ^401 A7 B7______ I、發明說明（4 ) 第2圖爲根據本發明較佳施引模式裝置之內噴咀縱剖 面圖； 第3圖爲第2圖所示噴咀之橫截面圖。 所附各圖和如下之詳細說明實質上含有某些性質之各 種元件，不但有助於更爲瞭解本發明，如有需要，且亦 有利於其定義。 先參考第1圖，以示意表示用於熔融金屬澆鑄（箭頭C ) 之調節裝置之耐火總成，特別是用於製鋼或冶金裝置 者。 在所說明實施例中之耐火總成，有三個耐火板，其一 以1表示，可以在其他二者2和3之間滑動。三塊板1、 2和3實質上被重疊而垂直於澆鑄軸Z-Z，軸在所述實施 例中直立。 在所述實施例中，各板之上游有一內部耐火噴咀4，被 設計使至少局部被安置於澆鑄孔內，其中有連續鑄注分 配器（未示）之底壁。內噴咀4構成一澆鑄槽道元件， 連接澆鑄分配器至裝置中之鑄錠模。 內噴咀4是一實質上爲圓筒空心形狀，其內壁43(第2 圖）界定澆鑄槽道7。更特別者，噴咀4實質上爲截頂之 圖錐形。澆鑄槽道7與一上游耐火板2之開口 2 0相通。 在所說明之實施例中，上游板2和下游板3相對於內 噴咀4而被固定，而中間板1可以從澆鑄位置滑向停止 澆鑄位置（如第1圖所示滑向圖之左方）。於是，滑動之 中間板1之開口 1 〇，實質上沿水平和χ-χ軸移位，使得 本紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公釐） (請先閱讀背面之注意事項再填寫本頁) 訂---------·' 經濟部智慧財產局員工消費合作社印製 495401 A7 B7 五、發明說明（斗） 以調節澆鑄流率。實際上，開口 1 〇在澆鑄位置一方面與 上游板2之孔口 2 0相通，而另一方面與下游板3之開口 3 0相通。在繞鑄停止位置中，孔口 1 〇偏向第1圖之右， 而在孔口 10附近（如第1圖中孔口 10之右所示）之耐 火板1 1之一部位，一方面靈敏閉上游板2之孔口 2 0，另 一方面關閉下游板3之孔口 3 0。於是，當滑動中之中間 板1之孔口 1 〇相對於澆鑄槽道7沿X-X軸偏移，澆鑄流 率降低，以至於滑動板1在對應該澆注停止位置之極端 位置之時，澆鑄被阻斷。另一方面，當孔口 1 0之軸實質 上與澆鑄軸倂合時，則澆鑄流率成爲最大。 在板1的過渡位置內，熔融金屬遭遇第一個障礙，對 應於在孔口 1 0附近內之滑動板1之部件1 1之上壁。各 板2和1的各個開口 20和1 0，互相相對靈敏移位，形成 一種實質上爲向內彎的澆鑄流徑C。在區段6內之金屬之 停滯被稱爲「循環滯區」。在熔融金屬的冶煉裝置內，例 如，氧化鋁和固化鋼之澱積物可能形成於區段6之內， 能夠擾亂滑動板1的移動，甚至阻塞上游板2的孔口 20。 一般的主張是射入流體，其爲能夠在機械上與熔融金 屬配合，建立局部擾流及/或套襯以保護噴咀各壁而反 制澱積物的形成。所選擇之流體爲與熔融金屬不起化學 作用者。在實作中，是噴入例如氬之惰性氣體。 在已知之調節裝置中，此項噴射通常施於澆鑄軸Z-Z 的所有週遭。所設圓形開口擴及澆鑄槽道3 6 0 °以供作徑 向噴射。然而，此種與對稱之噴射無法解決區域6中所 -6 - 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） (請先閱讀背面之注意事項再填寫本頁) 丨丨！訂」--------# 經濟部智慧財產局員工消費合作社印製 495401 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（r ) 生之問題和所形成的澱積物。 本發明各項目的之一即爲提供一種局部噴射能夠與熔 融金屬作機械性配合之流體，以求限制，甚至在該區域6 中排除熔融金屬的循環。 根據本發明之一較佳具體例，內噴咀4在內壁43中有 一凹部40，在實質上垂直於噴咀軸Z-Z之平面內擴及於 小於· 3 6 0°扇形角。一以多孔耐火材料製成之插件5被置 於凹部之內；惰氣被射入其中（箭頭F )。所射入氣體之 流束側道一擾流於可能發生澱積之區域6之內，形成一 種隔熱的氣層面保護壁部。 較佳者，在所述實施例中（第3圖），內噴咀4之凹部 40上所擴及之扇形角，爲近於120° 。尤其是在噴咀之橫 截面中（第3圖），凹部40在實施例中呈現一小於270° 而近於120°之扇形角八之隆起部式環繞帶。 如第2圖所示，內噴咀4有一圓形溝縫4 1，作供給流 體之用，從外接頭46而至噴射區5。溝縫41以孔口 42 局部延長而與凹部4 0相通，經過其間而噴射氣體（箭頭 F)。氣體F實質上指向一橫向平面，並在近於12〇°之扇 形角中被導入於插件5之孔內，趨向槽道7之中央。 於是，流體之局部射入有利於使其不予限制’甚至阻 遏澱積在區段6中形成，尤其是在澆鑄流徑實質內彎’ 而滑動之板1在一過渡位置（第1圖）限制澆_流率小 於最大流量之時。 當然’本發明並非受限於如上所用實施例所說明之施 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------裘--------訂--------- (請先閱讀背面之注意事項再填寫本頁) 495401 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（以） 引形式所限制，可以衍伸至其他變化。 另一施引形式包括在噴阻體內安置一金屬管，使外接 頭4 6直接連至溝縫4 1。 須知流體之噴射，也可以在實質垂直於噴咀4軸之平 面中，安排多個孔口，分佈於小於3 6 0 °亦即近於1 2 0 ° 之扇形角內而奏效。 在一項變更中，噴咀4可以在實質垂直於Z-Z軸之平 面內具有一溝縫，根據本發明之整體特徵，衍伸於小於 360°之扇形角內。 對於槽道區域，在兩種情況中，流體之噴射都能夠包 含熔融金屬循環區而有效。此循環主要形成於溝道之側 而與側邊45相對（第1圖），對向其間，板1從澆射位 置滑向其停止位置。 須予注意者，美國專利4,632,283揭示一種具有噴射機 構之耐火總成，在上游板2,用於噴射流體使須過板2之 一部位而與在停止位置之滑動板1有一相對距離（如第1 圖所示，對於孔口 20之左方），以求使噴入之流束實質 上在滑動板1之移位方向。 然而，具有如此噴射機構之上游板2，需要一個突轂（亦 稱插口）於其上表面，包圍其孔口 20。此一突轂有一用 於射入流體之溝縫，多個孔口，甚或多孔的插件，伸向 內噴咀，沿澆鑄軸Z-Z而有必須之高度使有效噴射流體。 在噴咀較低部位也需要設置一對應之凹部以容納此突 轂。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閲讀背面之注意事項再填寫本頁)495401 A7 ____B7___ 5. Description of the invention (<) The invention relates to a device for adjusting the casting flow rate, especially a device for casting molten metal such as steel or cast iron. Especially in the refractory assembly using this type of regulating device, the injection of an inert fluid such as argon. The device for adjusting the flow rate has a casting channel, and two refractory plates downstream thereof are inserted therein, each having an orifice. The two plates are substantially perpendicular to the axis of the channel, and one of the two plates can slide relative to the other plate to one side of the channel. In the casting position, the opening of the sliding plate substantially coincides with the casting shaft, and the openings of the plates communicate with each other. On the other hand, in the casting stop position, the slide plate opening is moved to a distance from the other plate, and thus the two plates close their openings to each other. In the known regulating device, a spraying mechanism is usually distributed around the entire periphery of the channel to spray the fluid around the axis of the channel. The radial ejection of the fluid is thus uniform and axisymmetric. However, although the sliding plate can be slightly biased towards other plates, and a moderate or low casting flow rate can be obtained at the transition position between the casting and stopping positions, the molten metal encounters a hindrance and is formed at the edge of the opening of the sliding plate. The channel axis is related. Usually results in erosion of the orifice. Furthermore, in the molten metal circulation area, a solid deposit is formed on the edge of the opening of the sliding plate. The present invention seeks to improve this situation. Therefore, it relates to a refractory assembly. A regulating device of this type has a casting channel formed downstream, and at least two refractory plates are substantially perpendicular to the axis of the channel, and each has an orifice. One of the two boards is designed with the same paper size as the Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) tr.i ------- line economy Printed by the Ministry of Intellectual Property Bureau's Consumer Cooperative Cooperative Printed by the Ministry of Economics' Intellectual Property Bureau's Employee Cooperative Cooperative Printed by 495401, A7 ______ B7 V. Description of the Invention (>) For the other plate to slide to one side of the channel, from the substantially each orifice The casting position 'in circulation' is transformed into a position where the plates substantially close their mutual openings and stop casting. The refractory assembly also essentially has a spraying mechanism, upstream of each plate, to allow the fluid to mechanically cooperate with the molten metal to avoid depositing in the circulation area. According to an overarching feature of the present invention, the refractory assembly has an inner nozzle having a substantially cylindrical hollow shape upstream of each plate. The inner wall of the nozzle defines the casting channel. The spraying mechanism is designed so that the spraying fluid is substantially radial with the nozzle, and within a fan angle of less than 3 60 °, the spraying fluid is opposed to the side of the channel when the sliding plate is in the closed position. The molten metal is then disrupted in situ by the sprayed fluid, and the walls in the post-circulation area are mechanically (even thermally) separated. The fan angle is preferably less than or equal to about 270 °, so that the fluid stream is more densely concentrated in the molten metal circulation area. For several applications, the fan angle is preferably close to 120 °. According to an advantageous and suitable feature of the present invention, the inner nozzle has a recess in a substantially horizontal section, which communicates with the interior of the casting channel and forms a fan-shaped hump of less than 360 °. Fluid is then ejected through this recess. This recess is preferably biased with an insert formed of a porous refractory material, in which the fluid is sprayed and tends to complete the inner surface of the mirror channel. Other advantages and features of the present invention will be presented in reading the following detailed description and the attached drawings: Figure 1 is a partial schematic diagram of a longitudinal section of a refractory assembly for a regulating device according to the present invention; the paper dimensions are applicable to Chinese national standards ( CNS) A4 specification (210 X 297 mm) I —— · ------------------- Order ------- line * (Please read the precautions on the back first (Fill in this page again) ^ 401 A7 B7______ I. Description of the invention (4) Figure 2 is a longitudinal sectional view of the inner nozzle of the device according to the preferred mode of the present invention; Figure 3 is a transverse view of the nozzle shown in Figure 2 Sectional view. The accompanying drawings and the detailed description below contain substantially various elements of certain properties, which will not only help to better understand the present invention, if necessary, but also facilitate its definition. Reference is first made to Fig. 1 for a schematic representation of a refractory assembly for a regulating device for molten metal casting (arrow C), particularly for a steel or metallurgical device. The refractory assembly in the illustrated embodiment has three refractory plates, one of which is designated by 1 and can slide between the other two and two. The three plates 1, 2 and 3 are substantially overlapped, perpendicular to the casting axis Z-Z, which is upright in the embodiment described. In the described embodiment, there is an internal refractory nozzle 4 upstream of each plate, which is designed to be placed at least partially in the casting hole, which has a bottom wall of a continuous casting distributor (not shown). The inner nozzle 4 constitutes a casting channel element, and connects the casting distributor to an ingot mold in the device. The inner nozzle 4 has a substantially cylindrical hollow shape, and an inner wall 43 (FIG. 2) thereof defines a casting channel 7. More specifically, the nozzle 4 has a substantially truncated cone shape. The casting channel 7 communicates with the opening 20 of an upstream refractory plate 2. In the illustrated embodiment, the upstream plate 2 and the downstream plate 3 are fixed relative to the inner nozzle 4, and the intermediate plate 1 can be slid from the casting position to the stop casting position (as shown in Fig. 1 to the left of the figure) square). Therefore, the opening 10 of the sliding intermediate plate 1 is substantially shifted along the horizontal and χ-χ axes, so that this paper size applies the Chinese National Standard (CNS) A4 specification (210 x 297 mm) (please read the Please fill in this page before ordering) Order --------- · 'Printed by 495401 A7 B7 of the Consumer Cooperatives of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (bucket) To adjust the casting flow rate. Actually, the opening 10 communicates with the opening 20 of the upstream plate 2 on the one hand in the casting position, and communicates with the opening 30 of the downstream plate 3 on the other hand. In the casting stop position, the orifice 10 is biased to the right of Fig. 1, and the part of the refractory plate 11 near the orifice 10 (as shown to the right of the orifice 10 in Fig. 1) is sensitive on the one hand The orifice 20 of the upstream plate 2 is closed, and the orifice 30 of the downstream plate 3 is closed. Therefore, when the orifice 10 of the intermediate plate 1 is sliding relative to the casting channel 7 along the XX axis, the casting flow rate decreases, so that when the sliding plate 1 is at an extreme position corresponding to the pouring stop position, the casting is Blocked. On the other hand, when the shaft of the orifice 10 is substantially coupled with the casting shaft, the casting flow rate becomes maximum. In the transitional position of the plate 1, the molten metal encounters the first obstacle, corresponding to the upper wall of the component 11 of the sliding plate 1 in the vicinity of the orifice 10. Each of the openings 20 and 10 of each of the plates 2 and 1 is relatively sensitively shifted relative to each other to form a casting flow path C that is substantially inwardly curved. The stagnation of the metal in section 6 is called the "cyclic stagnation zone". In a molten metal smelting device, for example, a deposit of alumina and solidified steel may be formed in the section 6 and can disturb the movement of the sliding plate 1 and even block the orifice 20 of the upstream plate 2. The general idea is to inject a fluid, which is capable of mechanically cooperating with molten metal to establish local turbulence and / or bushings to protect the walls of the nozzle and prevent the formation of deposits. The fluid chosen is not chemically reactive with the molten metal. In practice, an inert gas such as argon is injected. In known regulating devices, this spray is usually applied to all the surroundings of the casting axis Z-Z. The set circular opening extends into the casting channel 360 ° for radial injection. However, this kind of symmetrical jet cannot solve the problem in Area 6-6-This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) (Please read the precautions on the back before filling this page) 丨丨! Order "-------- # Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 495401 Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the Problem (r) Thing. One of the objects of the present invention is to provide a fluid which can be locally sprayed with the molten metal mechanically to limit or even eliminate the circulation of the molten metal in the region 6. According to a preferred embodiment of the present invention, the inner nozzle 4 has a recess 40 in the inner wall 43 and expands in a plane substantially perpendicular to the nozzle axis Z-Z to a fan angle of less than 360 °. An insert 5 made of porous refractory material is placed inside the recess; inert gas is injected into it (arrow F). The side stream of the injected gas is turbulent in the area 6 where deposition is likely to occur, forming a heat-insulating gas-layer protective wall portion. Preferably, in the embodiment (Fig. 3), the fan-shaped angle extended by the recess 40 of the inner nozzle 4 is approximately 120 °. Especially in the cross section of the nozzle (Fig. 3), in the embodiment, the recessed portion 40 presents a bulge-type encircling band with a fan angle of less than 270 ° and close to 120 °. As shown in Fig. 2, the inner nozzle 4 has a circular groove 41 for supplying fluid, from the outer joint 46 to the spray zone 5. The slit 41 is partially extended by the orifice 42 and communicates with the recessed portion 40, and gas is sprayed therethrough (arrow F). The gas F is substantially directed to a transverse plane and is introduced into the hole of the insert 5 at a fan angle of approximately 120 ° toward the center of the channel 7. Therefore, the local injection of the fluid is conducive to making it unrestricted 'even inhibiting the formation of deposits in section 6, especially when the casting flow path is substantially inwardly curved', and the sliding plate 1 is in a transition position (Figure 1) When the limit flow rate is less than the maximum flow rate. Of course, the present invention is not limited to the size of the paper used in the application, as explained in the examples used above, which is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) ----------- Qiu --- ----- Order --------- (Please read the notes on the back before filling out this page) 495401 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (in) Citation form Limitations can be extended to other changes. Another form of introduction includes placing a metal tube in the spray nozzle body, so that the outer joint 46 is directly connected to the groove 41. It should be noted that the spraying of the fluid can also be effective in the arrangement of a plurality of orifices in a plane substantially perpendicular to the 4 axis of the nozzle, distributed within a fan angle of less than 360 °, that is, nearly 120 °. In a modification, the nozzle 4 may have a groove in a plane substantially perpendicular to the Z-Z axis, and according to the overall feature of the present invention, it extends within a sector angle of less than 360 °. For the channel area, in both cases, the ejection of the fluid can be effective including the molten metal circulation zone. This cycle is mainly formed on the side of the channel opposite the side 45 (Fig. 1), and in the meantime, the plate 1 slides from the pouring position to its stopping position. It should be noted that U.S. Patent No. 4,632,283 discloses a refractory assembly with a spraying mechanism. In the upstream plate 2, it is used to spray fluid to pass through a part of the plate 2 and have a relative distance from the sliding plate 1 in the stop position (such as As shown in FIG. 1 (to the left of the orifice 20), in order to make the injected beam substantially move in the displacement direction of the sliding plate 1. However, the upstream plate 2 having such a spraying mechanism requires a boss (also known as a socket) on its upper surface to surround its orifice 20. This hub has a slot for injecting fluid, a plurality of orifices, or even a porous insert, which extends to the inner nozzle and has a necessary height along the casting axis Z-Z for effective fluid ejection. A corresponding recess is also required at the lower part of the nozzle to accommodate this hub. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page)
495401 A7 *_______B7___ 五、發明說明（7 ) 申請人驚異於發現熔融金屬在從內噴咀至上游板2之 循環中有熱之損失。突轂較高者此種熱損失較大，於是， 過高的突轂促使固體澱積物在中間板1上形成，恰與美 國專利4，6 3 2,2 8 3所尋求之效果相反。根據本發明，從噴 咀射噴流體可以限制此種熱損失。 其亦可以在根據本發明之耐火總成上，裝備一具有多 孔耐火插件之中間滑動板1 ;和在板1從其停止値量滑向 其澆鑄位置之方向中（第1圖中從右至左），設有第二噴 射機構（箭頭F’），以求在下游板3之孔口 3 0附近一部 份引之上表面上，消除可能因金屬循環而發生之澱積（如 第1圖所示孔口 3 0之右方）。此第二噴射最好衍伸涵蓋 於小於3 60°之扇形角。 此外，多孔插件或任何其他流體噴射機構，也可以被 置於下游板3之中，在與滑動板1之封閉之相對側上， 以求保護在滑動板下方之區域，使其澆鑄開口之左方免 於可能之循環。 在所說明之實施例中，耐火總成具有三片重疊之耐火 板，各板中之一爲中間板，在其他兩板之間滑動。在一 項變更中，只有耐火板1和2可被置於噴咀4之下游。 然後下方之板1被設計成爲相對於板2而滑向槽道之一 方4 5。通常位於固定板2下方，而主要的流體噴射常從 與側邊4 5相對之槽道側而完成，對於其間，使滑動板1 從其澆鑄位置移動至其停止位置。 在根據本發明耐火總成之另一項變更之中，內噴咀4 -9 - 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) 訂--------- f 經濟部智慧財產局員工消費合作社印製 495401 A7 五、發明說明（# ) 和上游板2是用單一的單塊耐火體製成。內噴阻4 ® 一* 耐火件，通常是耐火總成上方區域之一部份’被5又^十成 爲使連續鑄造分配器被連接至澆鑄裝置之鑄鍊模具°在 一項變更中，此噴咀可以是耐火總成之一部份’連接一 澆鑄澆斗至分配器上，或使一電爐連接至一湊鑄澆頭。 符號說明 1…耐火板 經 濟 慧 2… 3… 4 · · · 5… 6… 7… 10 11 20 2 1 30 3 1 40 耐火板 耐火板 內噴咀 插件 滯積區域 澆鑄槽道 ·.孔口 .•板 ·.孔口 ••板 …孔口 …板 …凹部 (請先閱讀背面之注意事項再填寫本頁) % % t 合 作 社 % 4 1…溝縫 4 2…孑L 口 43…內壁 45…槽道側 10· I度適用中國國家標準（CNS)A4規格（210 X 297公釐） 495401 A7 _B7 五、發明說明（9 ) 46…外接頭 A…扇形角 C…熔融金屬 F,F’…流體 X - X…移位方向 Z-Z…槽道軸 -------丨--------IJ---------·! (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）495401 A7 * _______ B7___ V. Description of the invention (7) The applicant was surprised to find that the molten metal lost heat in the cycle from the inner nozzle to the upstream plate 2. The higher the hub, the larger the heat loss. Therefore, the excessively high hub promotes the formation of solid deposits on the intermediate plate 1, which is the opposite of the effect sought by US Patent 4,6 3 2,2 8 3. According to the present invention, spraying fluid from the nozzle can limit such heat loss. It is also possible to equip the refractory assembly according to the invention with an intermediate sliding plate 1 having a porous refractory insert; and in the direction in which the plate 1 slides from its stop to the casting position (from right to the first figure) (Left), equipped with a second injection mechanism (arrow F '), in order to guide a part of the upper surface near the opening 30 of the downstream plate 3 to eliminate the deposition that may occur due to metal circulation (such as the first The right of the orifice 30 shown in the figure). This second spray preferably extends over a fan angle of less than 360 °. In addition, a porous insert or any other fluid ejection mechanism can also be placed in the downstream plate 3 on the opposite side from the closed side of the sliding plate 1 to protect the area below the sliding plate and cast it to the left of the opening Side free from possible cycles. In the illustrated embodiment, the refractory assembly has three overlapping refractory plates, one of which is an intermediate plate, and slides between the other two plates. In a modification, only the refractory plates 1 and 2 can be placed downstream of the nozzle 4. The lower plate 1 is then designed to slide towards one of the channels 4 5 relative to the plate 2. It is usually located below the fixed plate 2, and the main fluid ejection is usually completed from the side of the channel opposite to the side 45, during which the slide plate 1 is moved from its casting position to its stopping position. In another modification of the refractory assembly according to the present invention, the inner nozzle 4 -9-This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before (Fill in this page) Order --------- f Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 495401 A7 V. Description of Invention (#) and upstream plate 2 are made of a single single refractory body. Inner spray resistance 4 ® 1 * Refractory parts, usually a part of the area above the refractory assembly, are covered by 5 and ^ 10 and become the casting chain mold for the continuous casting distributor to be connected to the casting device. In a change, this The nozzle can be a part of the refractory assembly 'connecting a casting pot to the distributor, or an electric furnace to a cast-in pouring head. Explanation of symbols 1… Economical refractory plate 2… 3… 4 ··· 5… 6… 7… 10 11 20 2 1 30 3 1 40 Refractory plate Refractory plate Nozzle insert stagnation area casting channel ·. Orifice. • Plate ·. Orifice · • Plate… Orifice… Plate… Recess (please read the precautions on the back before filling in this page)%% t Cooperative% 4 1… Groove 4 2… 孑 L Mouth 43… Inner Wall 45 … 10 · I degree on the side of the channel applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) 495401 A7 _B7 V. Description of the invention (9) 46… Outer joint A ... Sector angle C ... Molten metal F, F ' … Fluid X-X… shift direction ZZ… channel axis ------- 丨 -------- IJ --------- ·! (Please read the precautions on the back first (Fill in this page again.) Printed on the paper by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Applicable to China National Standard (CNS) A4 (210 X 297 mm).