JPS63154247A - Sliding nozzle plate - Google Patents
Sliding nozzle plateInfo
- Publication number
- JPS63154247A JPS63154247A JP30040386A JP30040386A JPS63154247A JP S63154247 A JPS63154247 A JP S63154247A JP 30040386 A JP30040386 A JP 30040386A JP 30040386 A JP30040386 A JP 30040386A JP S63154247 A JPS63154247 A JP S63154247A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- nozzle hole
- gas
- inert gas
- nozzle
- 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
- 239000004927 clay Substances 0.000 claims description 12
- 239000007789 gas Substances 0.000 abstract description 57
- 239000011261 inert gas Substances 0.000 abstract description 29
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910000655 Killed steel Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/42—Features relating to gas injection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は取鍋からタンディツシュ、タンディツシュから
鋳型、あるいは取鍋から鋳型間において使用されるスラ
イディングノズルプレートに関し、特に非金属介在物等
のノズル内壁への付着を問題とならない程度に防止し得
るようにすると共に、不活性ガスがリークしないように
し、しかも、容易に製造できるようにしたスライディン
グノズルプレートに関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sliding nozzle plate used from a ladle to a tundish, from a tundish to a mold, or between a ladle and a mold. This invention relates to a sliding nozzle plate that can prevent inert gas from leaking and can be easily manufactured.
一般に溶融金属の連続鋳造等に於いて、溶融金属中のア
ルミナ、その他の非金属介在物等が、スライディングノ
ズルプレートのノズル孔内壁に付着堆積し、ノズル孔の
閉塞に至るという問題があり、特にアルミ・キル・ド鋼
の連続鋳造に於いてこの閉塞が生じ易い。Generally, in continuous casting of molten metal, there is a problem that alumina and other non-metallic inclusions in the molten metal adhere and accumulate on the inner wall of the nozzle hole of the sliding nozzle plate, leading to blockage of the nozzle hole. This blockage is likely to occur during continuous casting of aluminum-killed steel.
従来、このノズル孔の閉塞を防止するためには次の（１
）〜（４）のような手段が講じられる。Conventionally, in order to prevent this nozzle hole from clogging, the following (1)
) to (4) are taken.
（１）ノズル孔内部を比較的溶損されやすい材質とする
。(1) The inside of the nozzle hole is made of a material that is relatively easily damaged by erosion.
（２）ノズル孔内壁にポーラスれんが層を設け、該層を
通して不活性ガスを吹き込む。(2) A porous brick layer is provided on the inner wall of the nozzle hole, and an inert gas is blown through the layer.
（３）ノズル孔内部にガス均圧室を環状に形成し、この
ガス均圧室を外部の不活性ガス供給装置に連通ずると共
に、該ガス均圧室を直径１．０ ｍｍ以下の内孔に相当
する面積を有する複数の連通孔にてノズル内壁に連通し
、ガス均圧室及び連通孔を介して不活性ガスを吹き込む
。(3) A gas pressure equalization chamber is formed in an annular shape inside the nozzle hole, and this gas pressure equalization chamber is communicated with an external inert gas supply device, and the gas pressure equalization chamber is connected to an inner hole with a diameter of 1.0 mm or less. It communicates with the inner wall of the nozzle through a plurality of communication holes having an area corresponding to , and inert gas is blown through the gas pressure equalization chamber and the communication holes.
（４）溶融金属脱酸による酸化物の生成を抑制する。(4) Suppressing the formation of oxides due to molten metal deoxidation.
しかしながら、上記（１）の方法ではノズルプレートの
寿命が短かくなるので不利であり、上記（２）の方法で
はガス吹込が場所によって不均一になり、ノズル孔内壁
の急速な、又は異常な溶損を生じ易い。また、上記（４
）の方法では金属組成に影響する。However, the above method (1) is disadvantageous because the life of the nozzle plate is shortened, and the above method (2) causes uneven gas blowing depending on the location, resulting in rapid or abnormal melting of the inner wall of the nozzle hole. Easy to cause losses. In addition, the above (4)
) method affects the metal composition.
これに対して、上記（３）の方法ではこのような（１）
〜（３）の方法に伴う問題は生じないのであるが、ノズ
ルプレートの製造過程に於いて、ガス均圧室とノズルプ
レート本体を別々に製造して接合する必要があり、製造
工程数が多く、また、ガス均圧室とノズルプレート本体
との接合部分から不活性ガスが無駄にリークされるとい
う問題がある。On the other hand, in the method (3) above, such (1)
Although the problems associated with methods (3) to (3) do not occur, the gas pressure equalization chamber and the nozzle plate body must be manufactured and joined separately in the nozzle plate manufacturing process, which requires a large number of manufacturing steps. Furthermore, there is a problem in that inert gas leaks wastefully from the joint between the gas pressure equalization chamber and the nozzle plate body.
本発明は、上記の事情を鑑みなされたものであって、非
金属介在物等のノズル内壁への付着を問題とならない程
度に防止し得るようにするとともに、不活性ガスがリー
クしないようにした、製造容易なスライディングノズル
プレートを提供することを目的とするものである。The present invention has been made in view of the above circumstances, and is capable of preventing non-metallic inclusions from adhering to the inner wall of the nozzle to an extent that does not pose a problem, and also prevents inert gas from leaking. The object of the present invention is to provide a sliding nozzle plate that is easy to manufacture.
本発明に係るスライディングノズルプレートででは、上
記の目的を達成するために次のような技術的手段が講じ
られる。In the sliding nozzle plate according to the present invention, the following technical measures are taken to achieve the above object.
即ち、スライディングノズルプレートを形成する坏土中
に、坏土の焼成時または乾燥時に焼失あるいは熱収縮す
る中子を用いて、ノズル孔を囲繞する環状のガス均圧通
路と、外部からガス均圧通路に連通ずるガス供給孔と、
ガス均圧通路から周方向に適当な間隔を置いてノズル孔
に延びるガス導入孔とが形成される。That is, in the clay forming the sliding nozzle plate, a core that is burnt out or heat-shrinked when the clay is fired or dried is used to create an annular gas pressure equalization passage surrounding the nozzle hole, and a gas pressure equalization passage from the outside. a gas supply hole communicating with the passage;
A gas introduction hole extending from the gas pressure equalization passage to the nozzle hole is formed at an appropriate interval in the circumferential direction.
上記中子は坏土の焼成時または乾燥時に焼失あるいは熱
収縮するので、乾燥されたスライディングノズルプレー
ト内に異質のガス均圧室やポーラス層を設けることなく
、ガス均圧通路、ガス供給孔及びガス導入孔を形成でき
る。そして、溶鋼注入時等に外部の不活性ガス供給装置
からガス供給孔、ガス均圧通路及びガス導入孔を介して
ノズル孔に不活性ガスを吹き込むことにより、溶鋼とノ
ズル孔周面との間に不活性ガス境膜が形成され、ノズル
孔周面への非金属介在物等の付着が防止される。The core is burnt out or heat-shrinked during firing or drying of the clay, so there is no need to provide gas pressure equalization chambers or porous layers in the dried sliding nozzle plate. Gas introduction holes can be formed. When injecting molten steel, inert gas is blown into the nozzle hole from an external inert gas supply device through the gas supply hole, gas pressure equalization passage, and gas introduction hole, thereby creating a gap between the molten steel and the nozzle hole circumferential surface. An inert gas film is formed on the nozzle hole to prevent non-metallic inclusions from adhering to the circumferential surface of the nozzle hole.
また、坏土中に異質のガス均圧室やポーラス層を設けな
いので、不活性ガスがリークして無駄使いされるおそれ
がなくなる。Furthermore, since no foreign gas pressure equalization chamber or porous layer is provided in the clay, there is no risk of inert gas leaking and being wasted.
更に、ガス均圧通路、ガス供給孔及びガス導入孔は、坏
土の成形時に坏土の乾燥時に焼失あるいは熱収縮する中
子を埋設するだけで済むので製造が容易である。Furthermore, the gas pressure equalization passage, the gas supply hole, and the gas introduction hole are easy to manufacture because it is sufficient to bury a core that is burnt out or heat-shrinked when the clay is dried during molding of the clay.
以下、本発明の実施例を図面に基づき詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
第１図は本発明の一実施例に係るスライディングノズル
プレートの平面図であり、第２図は第１図Ａ−Ａ線縦断
面図であり、第３図は第１図Ｂ−Ｂ線縦断面図である。FIG. 1 is a plan view of a sliding nozzle plate according to an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a longitudinal cross-sectional view taken along the line B-B in FIG. It is a front view.
スライディングノズルプレート１の内部には、ノズル孔
２を適当な間隔を置いて囲繞する環状のガス均圧通路３
と、外部からガス均圧通路３に連通ずるガス供給孔４と
、ガス均圧通路３から周方向に適当な間隔を置いてノズ
ル孔２に延びるガス導入孔５とが形成されている。ガス
供給孔４の入口にはニップル７を介して図示しない不活
性ガス供給装置の不活性ガス供給バイブロが接続される
。Inside the sliding nozzle plate 1, there is an annular gas pressure equalizing passage 3 surrounding the nozzle holes 2 at appropriate intervals.
A gas supply hole 4 communicating with the gas pressure equalization passage 3 from the outside, and a gas introduction hole 5 extending from the gas pressure equalization passage 3 to the nozzle hole 2 at an appropriate interval in the circumferential direction are formed. An inert gas supply vibro of an inert gas supply device (not shown) is connected to the inlet of the gas supply hole 4 via a nipple 7 .
ガス均圧通路３．ガス供給孔４及びガス導入孔５は、例
えばプレートの焼成時、又は乾燥時の熱により消失、ま
たは収縮する紙、竹、木、樹脂。Gas pressure equalization passage 3. The gas supply holes 4 and the gas introduction holes 5 are made of paper, bamboo, wood, or resin that disappears or shrinks due to the heat generated during baking or drying of the plate, for example.
金属等の中実、又は中空物を図示しない中子として使用
し、プレート成形品の坏土中に埋め込み、プレート成形
品を焼成または乾燥させることにより形成することがで
きる。It can be formed by using a solid or hollow object such as metal as a core (not shown), embedding it in the clay of the plate molding, and firing or drying the plate molding.
スライディングノズルプレートの原料は、特に限定され
ず、公知の原料を使用することができる。The raw material for the sliding nozzle plate is not particularly limited, and known raw materials can be used.
ここでは、スライディングノズルプレート原料として、
アルミナ、ムライトの各々と、カーボンとが使用された
。Here, as the sliding nozzle plate raw material,
Alumina, mullite, and carbon were used.
このスライディングノズルプレート原料をレジンバイン
ダで混練後、乾燥したアルミナ−ムライト−カーボン質
配合物を用いて成形用金型内に配合投入量の約１／２を
充填した。配合物を水平にならし、ガス供給孔、ガス均
圧通路に対応する形状の直径３ｆｌ、直径１ｎスチロー
ル樹脂を所定位置にセットし、ガス導入孔５に対応する
形状の厚さ０．５鶴の厚紙を中子として埋めこんだ。そ
の上に残りの配合を充填し水平にならして、５００トン
プレスにて加圧成形した後、これを還元焼成し、焼成時
にスチロール樹脂、厚紙を焼失させて第１図乃至第３図
に示すプレート成形品を得、このプレート成形品のガス
供給孔４の入口にガス導入バイブロへのニフブル７が装
着された。After kneading this sliding nozzle plate raw material with a resin binder, the dried alumina-mullite-carbon mixture was filled into a molding die to the extent of about 1/2 of the amount to be mixed. Level the mixture horizontally, and set a styrene resin with a diameter of 3fl and a diameter of 1n corresponding to the gas supply hole and the gas pressure equalization passage in a predetermined position. A piece of cardboard was embedded as a core. Fill it with the remaining mixture and level it horizontally. After pressure-forming with a 500-ton press, it is reduced and fired, and the styrene resin and cardboard are burnt out during firing, as shown in Figures 1 to 3. A molded plate shown in the figure was obtained, and a nifble 7 for a gas introduction vibro was attached to the inlet of the gas supply hole 4 of the molded plate.
尚、前記ガス導入孔５のノズル孔２周面に於ける開口は
、上述の寸法に限定されるものではないが、不活性ガス
の噴出圧を充分高く維持し、また、溶鋼が表面張力に打
ち勝ってガス導入孔５に圧入しないようにするために、
各々ノズル孔２の軸心方向の長さが２Ｂ以下で、周方向
の幅が１１以上５０１以下であることが好ましい。The opening on the circumferential surface of the nozzle hole 2 of the gas introduction hole 5 is not limited to the above-mentioned dimensions, but it is necessary to maintain the jetting pressure of the inert gas sufficiently high and to prevent the molten steel from being affected by the surface tension. In order to overcome this and prevent the gas from being pressurized into the gas introduction hole 5,
It is preferable that the length in the axial direction of each nozzle hole 2 is 2B or less, and the width in the circumferential direction is 11 or more and 501 or less.
上記の構成に於いて、溶鋼注入時には、外部の不活性ガ
ス供給装置の不活性ガス供給バイブロがガス供給孔４に
接続され、不活性ガス供給バイブロから圧送される不活
性ガスがガス供給孔４、ガス均圧通路３を経てノズル孔
２内に吹込まれる。In the above configuration, when pouring molten steel, the inert gas supply vibro of the external inert gas supply device is connected to the gas supply hole 4, and the inert gas pumped from the inert gas supply vibro is supplied to the gas supply hole 4. , is blown into the nozzle hole 2 through the gas pressure equalization passage 3.
これによりノズル孔２の周面と溶鋼との間に不活性ガス
境膜が形成され、ノズル孔２の周面への非金属介在物等
の付着が防止される。また、このように不活性ガスをガ
ス導入孔５を経てノズル孔内に吹込むようにしたため、
ノズル孔内壁にポーラス層を設ける必要がなく、ノズル
孔周面を緻密化でき急速な、又は異常な溶損を防止でき
る。As a result, an inert gas film is formed between the circumferential surface of the nozzle hole 2 and the molten steel, and adhesion of non-metallic inclusions to the circumferential surface of the nozzle hole 2 is prevented. Also, since the inert gas is blown into the nozzle hole through the gas introduction hole 5,
There is no need to provide a porous layer on the inner wall of the nozzle hole, and the circumferential surface of the nozzle hole can be made denser and rapid or abnormal melting loss can be prevented.
即ち、このノズルを実炉に装着し、ガス供給バイブから
５１／分×３ｋｇ／ｃ１１！で不活性ガスを吹き込みつ
つ、アルミキルド鋼の連続鋳造を行ったところ、５チヤ
ージの鋳込終了までガス量がほぼ安定して吹き込まれ、
且つ、ノズル孔に非金属介在物の付着が殆ど見られない
。また、ノズル内孔の溶損拡大も極めて少なかった。That is, when this nozzle is installed in an actual furnace, 51/min x 3kg/c11! from the gas supply vibrator! When we performed continuous casting of aluminum killed steel while blowing inert gas, the amount of gas was blown almost stably until the end of 5 charges of casting.
Moreover, almost no nonmetallic inclusions are observed in the nozzle hole. Further, the expansion of melting damage in the nozzle inner hole was extremely small.
更に、異質のガス均圧室を用いずに均質の坏土でプレー
ト成形品を一体に成形するので、不活性ガスのシール性
も確保できる。Furthermore, since the plate molded product is integrally molded with homogeneous clay without using a different gas pressure equalization chamber, inert gas sealing performance can also be ensured.
〔発明の効果〕
以上の如く、本発明によれば外部から不活性ガスをガス
供給孔、ガス均圧通路及びガス導入孔を経てノズル孔内
に吹込むことにより非金属介在物等のノズル孔内周面へ
の付着を問題とならない程度に防止でき、プレートの再
使用が可能になる。[Effects of the Invention] As described above, according to the present invention, nonmetallic inclusions, etc. can be removed from the nozzle hole by blowing an inert gas into the nozzle hole from the outside through the gas supply hole, the gas pressure equalization passage, and the gas introduction hole. Adhesion to the inner circumferential surface can be prevented to a non-problematic extent, making it possible to reuse the plate.
また、全体を均質な坏土で一体に形成するので、不活性
ガスのリークが生じるおそれがなく、不活性ガスの無駄
使いが防止できる。更に、ガス供給孔、ガス均圧通路及
びガス導入孔は、焼成時または乾燥時に焼失または収縮
する中子を坏土中に埋設し、プレート成形体を焼成また
は乾燥するだけで形成できるので、簡単に製造でき、低
コスト化を図ることができる。Furthermore, since the entire structure is integrally formed from homogeneous clay, there is no risk of leakage of inert gas, and wasteful use of inert gas can be prevented. Furthermore, the gas supply holes, gas pressure equalization passages, and gas introduction holes can be easily formed by simply burying the core, which burns out or shrinks during firing or drying, in clay and then firing or drying the plate molded body. It can be manufactured at low cost.
第１図はスライディングノズルプレートの平面図、第２
図は第１図Ａ−Ａ線縦断面図、第３図は第１図Ｂ−Ｂ線
断面図である。
図中、
２・・・ノズル孔、
３・・・ガス均圧通路、
４・・・ガス供給孔、
５・・・ガス導入孔。
牙 ２ 図
片 ａ 図Figure 1 is a plan view of the sliding nozzle plate, Figure 2 is a plan view of the sliding nozzle plate.
The figures are a longitudinal cross-sectional view taken along the line A--A in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line B--B in FIG. In the figure, 2... nozzle hole, 3... gas pressure equalization passage, 4... gas supply hole, 5... gas introduction hole. Fang 2 Diagram piece a Diagram
Claims (2)
に、坏土の焼成時または乾燥時に焼失あるいは熱収縮す
る中子を用いて、ノズル孔を囲繞する環状のガス均圧通
路と、外部からガス均圧通路に連通するガス供給孔と、
ガス均圧通路から周方向に適当な間隔を置いてノズル孔
に延びるガス導入孔とを形成したことを特徴とするスラ
イディングノズルプレート。(1) In the clay forming the sliding nozzle plate, a core that is burnt out or heat-shrinked when the clay is fired or dried is used to create an annular gas pressure equalization passage surrounding the nozzle hole and a gas equalization passage from the outside. a gas supply hole communicating with the pressure passage;
A sliding nozzle plate characterized in that a gas introduction hole extending from a gas pressure equalization passage to a nozzle hole is formed at an appropriate interval in the circumferential direction.
各々ノズル孔の軸心方向の長さが２ｍｍ以下で周方向の
幅が１ｍｍ以上５０ｍｍ以下であることを特徴とする特
許請求の範囲第１項に記載のスライディングノズルプレ
ート。(2) The opening on the nozzle hole circumferential surface of the gas introduction hole is
The sliding nozzle plate according to claim 1, wherein each nozzle hole has a length in the axial direction of 2 mm or less and a circumferential width of 1 mm or more and 50 mm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30040386A JPS63154247A (en) | 1986-12-16 | 1986-12-16 | Sliding nozzle plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30040386A JPS63154247A (en) | 1986-12-16 | 1986-12-16 | Sliding nozzle plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63154247A true JPS63154247A (en) | 1988-06-27 |
Family
ID=17884370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30040386A Pending JPS63154247A (en) | 1986-12-16 | 1986-12-16 | Sliding nozzle plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63154247A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0563376A1 (en) * | 1989-06-01 | 1993-10-06 | Shinagawa Refractories Co., Ltd. | Gaz blowing plate brick or nozzle brick for molten metal |
| US5613545A (en) * | 1991-11-12 | 1997-03-25 | Shinagawa Refractories Co. Ltd. | Inert gas injecting plate brick or insert nozzle brick for use in a sliding gate valve apparatus of molten metal |
| US5626164A (en) * | 1995-08-02 | 1997-05-06 | Vesuvius Crucible Company | Crack resistant valve plate assembly for a molten metal slide gate valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6099461A (en) * | 1983-11-02 | 1985-06-03 | Toshiba Ceramics Co Ltd | Device for discharging molten metal |
-
1986
- 1986-12-16 JP JP30040386A patent/JPS63154247A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6099461A (en) * | 1983-11-02 | 1985-06-03 | Toshiba Ceramics Co Ltd | Device for discharging molten metal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0563376A1 (en) * | 1989-06-01 | 1993-10-06 | Shinagawa Refractories Co., Ltd. | Gaz blowing plate brick or nozzle brick for molten metal |
| US5613545A (en) * | 1991-11-12 | 1997-03-25 | Shinagawa Refractories Co. Ltd. | Inert gas injecting plate brick or insert nozzle brick for use in a sliding gate valve apparatus of molten metal |
| US5626164A (en) * | 1995-08-02 | 1997-05-06 | Vesuvius Crucible Company | Crack resistant valve plate assembly for a molten metal slide gate valve |
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