JP2000130959A - Spout and retention furnace for molten metal - Google Patents
Spout and retention furnace for molten metalInfo
- Publication number
- JP2000130959A JP2000130959A JP10306631A JP30663198A JP2000130959A JP 2000130959 A JP2000130959 A JP 2000130959A JP 10306631 A JP10306631 A JP 10306631A JP 30663198 A JP30663198 A JP 30663198A JP 2000130959 A JP2000130959 A JP 2000130959A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- gutter
- metal
- heating means
- storage tank
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は高温の金属溶湯、
例えば、６００℃〜７００℃程度のアルミニウム溶湯や
１０００℃を越える金属溶湯などを、溶解炉内から保持
炉あるいは金型へ、あるいは保持炉から金型へ搬送する
際に用いられる金属溶湯用樋、および高温の金属溶湯、
例えば、６００℃〜７００℃程度のアルミニウム溶湯や
１０００℃を越える金属溶湯などを収容しておく金属溶
湯用保持炉に関する。TECHNICAL FIELD The present invention relates to a high-temperature molten metal,
For example, a gutter for a molten metal used when transferring a molten aluminum of about 600 ° C. to 700 ° C. or a molten metal exceeding 1000 ° C. from a melting furnace to a holding furnace or a mold, or from the holding furnace to a mold, And hot metal melt,
For example, the present invention relates to a holding furnace for a molten metal in which molten aluminum of about 600 ° C. to 700 ° C. or molten metal of more than 1000 ° C. is stored.
【０００２】[0002]
【従来の技術】従来、高温の金属溶湯用の樋は、図１３
に現すように、ケーシング２４内に耐熱あるいは断熱部
材層２５、耐熱性セラミックス層２６などを装入し、当
該耐熱性セラミックス層２６によって構成される溝３０
の上側に、リード線２９を介して電源に接続されている
電熱線２８のような発熱手段が埋設されている耐熱材製
の蓋２８を被せて組み立てられ、前記発熱手段からの加
熱によって樋の溝３０内を流れる金属溶湯１５の凝固を
防止しつつ金属溶湯１５を流動させるもの、あるいは、
図示してはいないが、発熱手段を付設した耐熱部材から
なる管状の樋などが知られている。2. Description of the Related Art Conventionally, a gutter for a high-temperature molten metal is shown in FIG.
As shown in FIG. 2, a heat-resistant or heat-insulating member layer 25, a heat-resistant ceramic layer 26, and the like are inserted into a casing 24, and a groove 30 formed by the heat-resistant ceramic layer 26 is formed.
And a lid 28 made of a heat-resistant material in which a heating means such as a heating wire 28 connected to a power supply via a lead wire 29 is embedded, and the gutter is heated by the heating means. A device that allows the molten metal 15 to flow while preventing solidification of the molten metal 15 flowing in the groove 30, or
Although not shown, a tubular gutter made of a heat-resistant member provided with a heating means is known.
【０００３】このような金属溶湯用の樋において、溶解
炉から保持炉へ金属溶湯を搬送する場合の保持炉側の吐
出口での湯切れ、あるいは溶解炉又は保持炉から金型へ
金属溶湯を搬送する場合の金型側の吐出口での湯切れを
改善する手段としては、樋の傾斜角度を調節したり、金
属溶湯にぬれない材質からなる樋を用いるなどの方法が
採用されていた。In such a gutter for molten metal, when the molten metal is conveyed from the melting furnace to the holding furnace, the molten metal is drained at the discharge port on the holding furnace side, or the molten metal is discharged from the melting furnace or the holding furnace to the mold. As a means for improving the drainage of the hot water at the discharge port on the mold side in the case of transportation, a method of adjusting the inclination angle of the gutter or using a gutter made of a material that does not wet the molten metal has been adopted.
【０００４】また、高温の金属溶湯を収容する容器であ
る金属溶湯用保持炉としては、外側のケーシングの中に
耐熱鋼製の収容槽を装入し、ケーシング内壁と収容槽外
壁との間に発熱体を設置する構成や、外側のケーシン
グ、中間の耐熱材槽あるいは断熱材槽などの内側に、セ
ラミックスからなる金属溶湯収容容器が装入されている
構成からなる金属溶湯用保持炉などが知られている。[0004] Further, as a holding furnace for molten metal, which is a container for accommodating a high-temperature molten metal, a storage tank made of heat-resistant steel is placed in an outer casing, and a space between the inner wall of the casing and the outer wall of the storage tank is provided. There is known a configuration in which a heating element is installed, a holding furnace for molten metal composed of a configuration in which a molten metal container made of ceramic is inserted inside an outer casing, an intermediate heat-resistant material tank, or an insulating material tank. Have been.
【０００５】[0005]
【発明が解決しようとする課題】前記従来の金属溶湯用
の樋においては、溝を有する樋部材の上側に発熱手段が
付設されている蓋部材が被せられて構成されているた
め、蓋部材の取り外し、取り付けなどに際して発熱手段
用の電熱線が断線するなど、取扱いに注意を要しなけれ
ばならないという問題点があった。また、このように溝
を有する樋部材の上側に発熱手段が付設されている蓋部
材が被せられて構成されている樋、発熱手段を付設した
耐熱部材からなる管状の樋のいずれであっても、金属溶
湯の凝固を未然に防止するために行っている加熱の効
率、樋の中を流動している金属溶湯への熱伝達に関し
て、更に改善すべき点があった。In the above conventional gutter for molten metal, a gutter member having a groove is covered with a lid member provided with a heating means on the upper side of the gutter member. At the time of removal, attachment, etc., there is a problem that care must be taken in handling, such as the heating wire for the heating means is broken. Further, any of a gutter constituted by covering a lid member provided with a heating means on the upper side of a gutter member having a groove as described above, and a tubular gutter made of a heat-resistant member provided with a heating means may be used. Further, there is a point to be further improved with respect to the efficiency of heating performed to prevent solidification of the molten metal and the heat transfer to the molten metal flowing in the gutter.
【０００６】また、吐出口における湯切れを改善すべ
く、樋の傾斜角度を調節したり、金属溶湯にぬれない材
質からなる樋を用いるなどの方法を採用する場合には、
傾斜角度の調節、適切な部材の選択などに労力・経費を
要し、有効なる湯切れのよさを確保するためには多くの
課題を克服する必要があった。Further, in order to improve the drainage of the hot water at the discharge port, when adopting a method such as adjusting the inclination angle of the gutter or using a gutter made of a material which does not get wet with the molten metal,
Effort and expense are required for adjusting the inclination angle and selecting an appropriate member, and many problems must be overcome in order to ensure effective hot water drainage.
【０００７】更に、前記従来の金属溶湯用保持炉におい
て、収容している金属溶湯の温度を下げないようにする
ためには、外側のケーシング内壁と収容槽外壁との間に
発熱体を設置したり、発熱手段が付設されている蓋部材
を保持炉に被せるなどの手段が採用されていたが、この
ような構成では、収容している金属溶湯を加熱する効
率、収容している金属溶湯への熱伝達が十分ではないと
いう問題があった。Further, in the conventional furnace for holding molten metal, in order to prevent the temperature of the contained molten metal from being lowered, a heating element is provided between the inner wall of the outer casing and the outer wall of the storage tank. Or a method of covering the holding furnace with a lid member provided with a heating means. However, in such a configuration, the efficiency of heating the contained molten metal and the efficiency of heating the contained molten metal are reduced. There is a problem that heat transfer is not sufficient.
【０００８】また、従来の金属溶湯用樋、金属溶湯用保
持炉のいずれであっても、高温の金属溶湯を通過させる
耐熱性の樋、高温の金属溶湯を収容する耐熱槽の成型・
加工の容易性の点において、又、これらを蓋部材と組み
合わせて組み立て、使用する場合には、組み立ての容易
性、内部の密閉性に関して改善すべき点があった。Further, in any of the conventional metal melt gutter and the metal melt holding furnace, a heat-resistant gutter through which a high-temperature metal melt passes and a heat-resistant tank for accommodating the high-temperature metal melt can be formed.
In terms of ease of processing, and when assembling and using them in combination with a lid member, there are points to be improved in terms of ease of assembly and sealing inside.
【０００９】[0009]
【課題を解決するための手段】本発明は、金属溶湯吐出
口近辺の温度が該金属溶湯用樋中を搬送されている金属
溶湯の温度より、高い温度に保たれている金属溶湯用樋
を提供することにより、また、加熱手段を付設した絶縁
セラミックス製の樋部材又は金属溶湯収容槽、絶縁手段
を介在させて加熱手段が付設されている金属製の樋部材
又は金属溶湯収容槽、加熱手段が付設されている金属製
の樋部材の内側に絶縁セラミックス製の樋部材が装入さ
れている金属溶湯用樋、加熱手段が付設されている金属
製の収容槽の内側に絶縁セラミックス製の溶湯収容槽か
装入されている金属溶湯用保持炉を採用することによ
り、前記課題を解決したものである。SUMMARY OF THE INVENTION The present invention relates to a metal melt gutter in which the temperature near the metal melt discharge port is maintained at a higher temperature than the temperature of the metal melt conveyed in the metal melt gutter. By providing, a gutter member or a molten metal storage tank made of an insulating ceramic provided with a heating means, a metal gutter member or a molten metal storage tank provided with a heating means with an insulating means interposed therebetween, and the heating means A metal gutter member provided with an insulating ceramic gutter member inside the metal gutter member, and an insulating ceramic molten metal inside a metal housing tank provided with a heating means. This problem has been solved by employing a holding furnace for molten metal loaded in a storage tank.
【００１０】[0010]
【発明の実施の形態】すなわち、本発明が提案する金属
溶湯用樋は、金属溶湯の搬送に用いる金属溶湯用樋であ
って、金属溶湯吐出口近辺の温度が、該金属溶湯用樋中
を搬送されている金属溶湯の温度より、高い温度に保た
れていることを特徴とする金属溶湯用樋である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The gutter for molten metal proposed by the present invention is a gutter for molten metal used for transporting the molten metal. A gutter for a molten metal, which is maintained at a temperature higher than the temperature of the molten metal being conveyed.
【００１１】前記において、本発明の金属溶湯用樋は、
従来知られている種々の金属溶湯用樋、例えば、金属溶
湯を流動させるための溝条を有する耐熱セラミックス製
あるいは耐熱鋼製の樋部材の上に、蓋部材が被せられて
構成されているもの、内部に金属溶湯が流動する中空部
を有する耐熱セラミックス製あるいは耐熱鋼製の管状の
樋部材から構成されているものなど、その構成は問わ
ず、従来採用されている種々の金属溶湯用樋を用いるこ
とができ、このように従来公知の種々の金属溶湯用樋に
おいて、少なくとも金属溶湯吐出口近辺の温度を、該金
属溶湯用樋中を搬送されている金属溶湯の温度より、高
い温度に保つようにして構成したものである。In the above, the gutter for molten metal of the present invention comprises:
Conventionally known various molten metal gutters, for example, a structure in which a lid member is placed on a heat-resistant ceramic or heat-resistant steel gutter member having grooves for flowing the molten metal. Various types of conventionally used molten metal gutters can be used, regardless of their configuration, such as those made of a heat-resistant ceramic or heat-resistant steel tubular gutter member having a hollow portion through which the molten metal flows. As described above, in various conventionally known molten metal gutters, at least the temperature near the molten metal discharge port is maintained at a higher temperature than the temperature of the molten metal being conveyed in the molten metal gutter. It is configured as described above.
【００１２】このように、金属溶湯吐出口近辺、例え
ば、溶解炉から保持炉へ金属溶湯を搬送する場合におけ
る保持炉側の吐出口近辺、あるいは溶解炉又は保持炉か
ら金型へ金属溶湯を搬送する場合の金型側の吐出口近辺
の温度を該金属溶湯用樋中を搬送されている金属溶湯の
温度より、高い温度に保つことにより、樋の傾斜角度を
特に調整することなしに、また、樋を金属溶湯（例えば
アルミニウム溶湯）にぬれない材質のもので製造するこ
となしに、吐出口での湯切れを良くすることができる。As described above, near the discharge port of the molten metal, for example, near the discharge port on the holding furnace side when the molten metal is transferred from the melting furnace to the holding furnace, or from the melting furnace or the holding furnace, the molten metal is transferred to the mold. In this case, by keeping the temperature near the discharge port on the mold side higher than the temperature of the molten metal being conveyed in the molten metal gutter, without particularly adjusting the inclination angle of the gutter, and In addition, drainage at the discharge port can be improved without manufacturing the gutter with a material that does not get wet with molten metal (for example, molten aluminum).
【００１３】前記において、樋の吐出口近辺の温度は、
金属溶湯用樋中を搬送されている金属溶湯の温度より、
１００℃〜１５０℃高い温度とすることが好ましい。こ
れは、１００℃より低い場合には、湯切れの良さという
点で、不十分であり、その一方、１５０℃より高くても
湯切れの良さにはあまり差が生じないので、湯切れの良
さを確保しつつ、効率のよさを考えて、１００℃〜１５
０℃高い温度にすることが好ましい。In the above, the temperature near the outlet of the gutter is:
From the temperature of the molten metal being conveyed in the molten metal gutter,
It is preferable that the temperature be higher by 100 ° C. to 150 ° C. When the temperature is lower than 100 ° C., it is insufficient in terms of drainage. On the other hand, when the temperature is higher than 150 ° C., there is not much difference in the drainage. 100 ° C to 15 ° C while considering the efficiency
It is preferable to raise the temperature by 0 ° C.
【００１４】また、樋の吐出口近辺とは、金属溶湯用樋
の大きさ及び金属溶湯の流動速度にもよるが、少なくと
も、吐出口端から距離Ｌの部分（図１）を１００ｍｍ
（ミリメートル）程度とし、この部分は、樋中を搬送さ
れている金属溶湯の温度よりも高い温度、好ましくは１
００℃〜１５０℃高い温度に保つようにすることが好ま
しい。高い温度に保たれている部分（図１中、符号Ｌで
示される長さ部分）が、吐出口端から１００ｍｍ（ミリ
メートル）程度より短いと、湯切れの良さという点で不
十分であり、その一方、１００ｍｍ（ミリメートル）よ
り長くなっても湯切れの良さにはあまり差が生じないの
で、湯切れの良さを確保しつつ、効率のよさを考えて、
少なくとも、吐出口端から１００ｍｍ（ミリメートル）
程度の部分までは、樋中を搬送されている金属溶湯の温
度よりも高い温度、好ましくは１００℃〜１５０℃高い
温度に保つことが望ましい。The vicinity of the discharge opening of the gutter depends on the size of the gutter for the molten metal and the flow velocity of the molten metal.
(Millimeters), and this portion has a temperature higher than the temperature of the molten metal being conveyed in the gutter, preferably 1 mm.
It is preferable to keep the temperature higher by 00C to 150C. If the portion maintained at a high temperature (the length indicated by the symbol L in FIG. 1) is shorter than about 100 mm (millimeter) from the end of the discharge port, it is not sufficient in terms of draining the hot water, which is insufficient. On the other hand, even if the length is longer than 100 mm (millimeter), there is not much difference in the goodness of the drainage, so while keeping the goodness of the drainage, considering the efficiency,
At least 100 mm (millimeter) from the end of the discharge port
To the extent of the degree, it is desirable to keep the temperature higher than the temperature of the molten metal being conveyed in the gutter, preferably 100 ° C. to 150 ° C. higher.
【００１５】なお、前記のように、樋の吐出口近辺の温
度を高くしても、その部分は前述したように非常に短い
部分であること、また樋中を搬送されている金属溶湯が
流動していることと相俟って、搬送されている金属溶湯
の温度が、溶湯の品質に変化を与えるほど高くなること
はない。As described above, even if the temperature near the discharge port of the gutter is raised, the portion is extremely short as described above, and the molten metal conveyed in the gutter flows. In combination with this, the temperature of the molten metal being conveyed does not become so high as to change the quality of the molten metal.
【００１６】次に、本発明が提案する他の金属溶湯用樋
及び金属溶湯用保持炉は、金属溶湯搬送用の金属溶湯用
樋であって、加熱手段が付設されている絶縁セラミック
ス製の樋部材からなる金属溶湯用樋、及び金属溶湯収容
用の金属溶湯用保持炉であって、加熱手段が付設されて
いる絶縁セラミックス製の溶湯収容槽からなる金属溶湯
用保持炉である。Next, another gutter for molten metal and a holding furnace for molten metal proposed by the present invention are a gutter for molten metal for conveying the molten metal, and a gutter made of insulating ceramics provided with a heating means. A metal melt gutter comprising a member and a metal melt holding furnace for holding a metal melt, the metal melt holding furnace comprising an insulating ceramic melt storage tank provided with a heating means.
【００１７】本明細書において用いる「絶縁セラミック
ス」とは、高温で高強度、高硬度、高耐食性を有するの
みならず、高温で良好な熱伝導性を示し、更に、高温で
良好な電気絶縁性を有するセラミックスのことをいう。
例えば、Ｓｉ3 Ｎ4 （四窒化三珪素）のような窒化珪素
や窒化硼素、等の窒化物のセラミックス、ボロンニトラ
イド（Ｂｏｒｏｎ Ｎｉｔｒｉｄｅ）（ＢＮ）、気相成
長法によって生成したボロンニトライドの多結晶体、等
のセラミックスのことである。また、本明細書におい
て、「絶縁」という時は、電気的な絶縁がなされている
ことをいう。The term "insulating ceramics" as used herein means not only high strength, high hardness and high corrosion resistance at high temperature, but also good thermal conductivity at high temperature and good electrical insulation at high temperature. Refers to ceramics having
For example, nitride ceramics such as silicon nitride and boron nitride such as Si 3 N 4 (trisilicon tetranitride), boron nitride (BN), and boron nitride produced by a vapor phase growth method. Ceramics such as polycrystals. In this specification, the term “insulation” means that electrical insulation is provided.
【００１８】更に、本明細書において、「樋部材」と
は、図１、図２に示されているように、上側に金属溶湯
が流動する溝条を有する形式の樋部材の他、図７、図８
図示のように、内部に金属溶湯が流動する中空部を有す
る管状の樋部材をも含むものである。Further, in this specification, the term "gutter member" refers to a gutter member having a groove on the upper side of which a molten metal flows as shown in FIGS. , FIG.
As shown in the figure, the pipe also includes a tubular gutter member having a hollow portion through which the molten metal flows.
【００１９】前述した絶縁セラミックスは、高温で良好
な熱伝導性を有するので、これで樋部材や溶湯収容槽を
構成し、当該樋部材や溶湯収容槽に付設した加熱手段を
用いて加熱すれば、当該加熱手段から発生された熱は、
絶縁セラミックス製の樋部材・溶湯収容槽を介して効率
良く、また均一に樋部材内を流動中の金属溶湯や、溶湯
収容槽内に収容されている金属溶湯に伝えられ、加熱、
保温を効果的に行うことができる。Since the above-mentioned insulating ceramics have good thermal conductivity at high temperatures, they constitute a gutter member or a molten metal storage tank, and can be heated by using a heating means attached to the gutter member or the molten metal storage tank. The heat generated by the heating means
Efficiently and uniformly transmitted to the molten metal flowing in the gutter member and the molten metal contained in the molten metal storage tank through the insulating ceramic gutter member and the molten metal storage tank, and heated,
Insulation can be effectively performed.
【００２０】ここで、樋部材や溶湯収容槽への加熱手段
の付設は、絶縁セラミックス製の樋部材や溶湯収容槽に
所定間隔で複数の孔を穿設し、当該孔の中に加熱手段を
挿脱する構成としたり、絶縁セラミックス製の樋部材や
溶湯収容槽の外周に、加熱手段を、直接、取り付け、あ
るいは巻き付けたり、接触させる構成にすることができ
る。いずれの構成を採用しても、絶縁セラミックスによ
って電気的に絶縁されているので、加熱手段から樋部材
内を流動中あるいは溶湯収容槽内に収容されている金属
溶湯に通電するおそれはない。ここで、加熱手段として
は、棒状のヒーター、ニクロム線などの電熱線、セラミ
ックスヒーターなど、この技術分野で公知の種々の加熱
・発熱手段を採用することができる。In order to attach the heating means to the gutter member or the molten metal storage tank, a plurality of holes are formed at predetermined intervals in the insulating ceramic gutter member or the molten metal storage tank, and the heating means is provided in the hole. The heating means can be directly attached, wound, or brought into contact with the outer periphery of the insulating ceramic gutter member or the molten metal storage tank. Regardless of the configuration employed, since it is electrically insulated by the insulating ceramics, there is no danger that the heating means will supply electricity to the molten metal flowing in the gutter member or in the molten metal storage tank. Here, as the heating means, various heating / heating means known in this technical field, such as a rod-shaped heater, a heating wire such as a nichrome wire, and a ceramic heater, can be employed.
【００２１】次に、本発明が提案する更に他の金属溶湯
用樋及び金属溶湯用保持炉は、絶縁手段を介在させて加
熱手段が付設されている金属製の樋部材からなる金属溶
湯用樋、及び、金属溶湯収容用の金属溶湯用保持炉であ
って、絶縁手段を介在させて加熱手段が付設されている
金属製の溶湯収容槽からなる金属溶湯用保持炉である。
この金属溶湯用樋及び金属溶湯用保持炉においては、
樋部材、溶湯収容槽が良好な熱伝導体である金属によっ
て構成されているので、付設されている加熱手段から発
生された熱が、効率良く、また均一に樋部材内を流動中
の金属溶湯や、溶湯収容槽内に収容されている金属溶湯
に伝えられ、加熱、保温を効果的に行うことができる。Next, still another metal gutter and a metal holding furnace proposed by the present invention are a metal gutter comprising a metal gutter member provided with a heating means via an insulating means. And a holding furnace for holding a molten metal for holding a molten metal, wherein the holding furnace for a molten metal comprises a molten metal storage tank provided with a heating means via an insulating means.
In this molten metal gutter and molten metal holding furnace,
Since the gutter member and the molten metal storage tank are made of a metal that is a good heat conductor, the heat generated from the attached heating means efficiently and uniformly flows through the gutter member. In addition, the heat is transmitted to the molten metal contained in the molten metal storage tank, so that heating and heat retention can be performed effectively.
【００２２】また、成形、加工容易な金属で樋部材や溶
湯収容槽を構成するので、金属溶湯用樋及び保持炉の製
造が極めて容易になると共に、金属溶湯と大気との接触
を防止すべく蓋部材を用いる場合に当該蓋部材も金属で
構成すれば、成形、加工容易で精密に成形することがで
きる金属であるがゆえに、全体の組み立てが容易にな
り、また密閉性を改善することもできる。Further, since the gutter member and the molten metal storage tank are formed of a metal which is easy to form and process, it is extremely easy to manufacture the molten metal gutter and the holding furnace, and to prevent contact between the molten metal and the atmosphere. When the lid member is used, if the lid member is also made of metal, it is a metal that can be easily formed and processed and can be precisely molded, so that the entire assembly becomes easy and the sealing property can be improved. it can.
【００２３】前記の金属としては、耐熱鋼（高温におけ
る各種環境で耐酸化性、耐高温腐食性又は高温強度を保
持する合金鋼）、あるいは、鋳鋼品（鋼を鋳型に鋳込ん
で所要形状の製品としたもの）などを使用することがで
きる。The metal may be a heat-resistant steel (alloy steel having oxidation resistance, high-temperature corrosion resistance or high-temperature strength in various environments at high temperatures) or a cast steel product (steel is cast into a mold and has a required shape). Products) can be used.
【００２４】ここで、金属製樋部材、金属製溶湯収容槽
に付設する加熱手段は、樋の中を流動する、あるいは溶
湯収容槽内に収容される金属溶湯に通電することを防止
するために、絶縁手段（電気的に絶縁する手段）を介在
させて付設する必要がある。例えば、金属製樋部材・溶
湯収容槽に所定間隔で複数の孔を穿設し、当該複数の孔
の中に、絶縁セラミックスによって成型した有底あるい
は底無しの管体・筒体を挿入した後、当該絶縁セラミッ
クス製の管体・筒体内に加熱手段を挿脱する構成、前記
複数の孔の中に、絶縁セラミックスの粉末を装入し、当
該粉末の中に加熱手段を埋設する、金属製樋部材・溶湯
収容槽の外周に絶縁セラミックス製の部材（例えば、板
状体など）を取り付け、あるいは介在させてから加熱手
段を取り付ける、金属製樋部材・溶湯収容槽の外周に絶
縁セラミックスを装着あるいは層着・塗布してから加熱
手段を取り付け、接触させ、あるいは巻き付ける、加熱
手段を絶縁セラミックス製の筒体などで包囲あるいは絶
縁セラミックスで被覆してから金属製樋部材・溶湯収容
槽の外周に取り付け、接触させ、あるいは巻き付ける、
など種々の構成を採用できる。Here, the metal gutter member and the heating means attached to the molten metal storage tank are provided to prevent the metal from flowing through the gutter or energizing the molten metal stored in the molten metal storage tank. In addition, it is necessary to provide an insulating means (electrically insulating means). For example, after drilling a plurality of holes at predetermined intervals in a metal gutter member / melt storage tank, and inserting a bottomed or bottomless tube / tube molded from insulating ceramic into the plurality of holes, A configuration in which a heating means is inserted into and removed from the insulating ceramic tube / tube body; a metal gutter in which an insulating ceramic powder is charged into the plurality of holes and the heating means is embedded in the powder; A member made of insulating ceramics (for example, a plate-like body) is attached to the outer periphery of the member / melt storage tank, or a heating means is attached after the member is interposed. After the layering and application, the heating means is attached, contacted or wound.The heating means is surrounded by an insulating ceramic tube or covered with insulating ceramic, and then the metal gutter member Attached to the outer periphery of the hot water storage tank, the contact is, or wound,
Various configurations can be adopted.
【００２５】なお、この加熱手段としては、棒状のヒー
ター、ニクロム線などの電熱線、セラミックスヒーター
などこの技術分野で公知の種々の加熱手段、発熱手段を
採用することができる。As the heating means, various heating means and heating means known in this technical field, such as a rod-shaped heater, a heating wire such as a nichrome wire, and a ceramic heater, can be employed.
【００２６】いずれの構成にしても、加熱手段から発生
された熱は、高温で良好な熱伝導性を示す絶縁セラミッ
クスを介して効率良く又均一に金属製樋部材・溶湯収容
槽に伝えられ、この金属製樋部材・溶湯収容槽から金属
溶湯に効率良く又均一に伝えられる。In any case, the heat generated from the heating means is efficiently and uniformly transmitted to the metal gutter member and the molten metal storage tank through the insulating ceramics exhibiting good thermal conductivity at a high temperature. The metal gutter member and the molten metal storage tank efficiently and uniformly transmit the molten metal to the molten metal.
【００２７】本発明が提案する更に他の金属溶湯用樋及
び金属溶湯用保持炉は、加熱手段が付設されている金属
製の樋部材、加熱手段が付設されている金属製の収容槽
の内側に、絶縁セラミックス製の樋部材・溶湯収容槽が
それぞれ装入されてなる金属溶湯用樋及び金属溶湯用保
持炉である。金属製樋部材・金属製収容槽の内側には、
絶縁セラミックス部材が装入されるので、金属製樋部材
・金属製収容槽への加熱手段の付設は、必ずしも、絶縁
手段を介在させて行う必要はない。[0027] Still another metal gutter and a metal holding furnace proposed by the present invention are a metal gutter member provided with a heating means and a metal gutter member provided with a heating means. A gutter member for molten metal and a holding furnace for molten metal in which a gutter member and a molten metal storage tank made of insulating ceramics are inserted, respectively. Inside the metal gutter member and metal storage tank,
Since the insulating ceramic member is inserted, it is not always necessary to attach the heating means to the metal gutter member / metal housing tank via the insulating means.
【００２８】これによれば、前述した金属製の溶湯用樋
・溶湯収容槽を採用して得られる前述した効果の他に、
樋、溶湯収容槽を構成する金属が、直接、高温の金属溶
湯に接触することがなくなるので、樋表面、溶湯収容槽
表面の耐食性が強化され、長期間に亘って、安定的に使
用し続けることができる。According to this, in addition to the above-mentioned effects obtained by employing the above-mentioned metal melt gutter and melt storage tank,
Since the metal constituting the gutter and the molten metal storage tank does not come into direct contact with the high-temperature molten metal, the corrosion resistance of the gutter surface and the molten metal storage tank surface is enhanced, and the metal can be stably used for a long period of time. be able to.
【００２９】このように絶縁セラミックス製の樋部材・
溶湯収容槽を金属製の樋部材・溶湯収容槽の内側に装入
した場合であっても、絶縁セラミックスの高温で良好な
熱伝導性ゆえに、金属製の樋部材・溶湯収容槽を介して
効率よく又均一に伝えられてきた熱は、効率よく又均一
に金属溶湯に伝えられる。As described above, the gutter member made of insulating ceramics
Even when the molten metal storage tank is inserted inside a metal gutter member or molten metal storage tank, the efficiency is high through the metal gutter member or molten metal storage tank due to the high temperature and good thermal conductivity of the insulating ceramics. The heat that has been well and uniformly transmitted is efficiently and uniformly transmitted to the molten metal.
【００３０】絶縁セラミックス製の樋部材・溶湯収容槽
の金属製樋部材・収容槽の内側への装入は、金属製樋部
材・収容槽の内側に絶縁セラミックスを層着、塗布する
構成にすることもできる。また、絶縁セラミックス製樋
部材・溶湯収容槽あるいは金属製樋部材・収容槽のどち
らか一方に亀裂、ひび割れが入る等の不具合が生じて、
どちらか一方のみを交換しなければならない場合に備え
て、金属製樋部材・収容槽の内側に絶縁セラミックスで
成型した樋部材・溶湯収容槽を挿入あるいは嵌装する構
成にすることもできる。この場合は、金属とセラミック
スとの熱膨張率の相違を考慮し、金属製樋部材・収容槽
と、これらの中に挿入あるいは嵌装されるセラミックス
製樋部材・溶湯収容槽との間に、金属とセラミックスと
の熱膨張の差を吸収できる程度の小さな隙間を存在させ
ることが好ましい。また、この際には、当該隙間に、絶
縁セラミックスの粉末を装入しておくことが好ましい。
前記隙間が設けられている場合であっても、当該隙間に
絶縁セラミックスの粉末を装入しておくことによって、
金属製樋部材・溶湯収容槽からの熱を効率よく金属溶湯
に伝えることができるからである。The gutter member made of insulated ceramics and the molten metal storage tank are charged inside the metal gutter member and the storage tank by applying a layer of insulating ceramic to the inside of the metal gutter member and the storage tank. You can also. In addition, cracks or cracks may occur in one of the insulating ceramic gutter member and the molten metal storage tank or the metal gutter member and the storage tank.
In a case where only one of them needs to be replaced, a gutter member or a molten metal storage tank molded of insulating ceramics may be inserted or fitted inside the metal gutter member or the storage tank. In this case, in consideration of the difference in the coefficient of thermal expansion between metal and ceramics, between the metal gutter member / storage tank and the ceramic gutter member / melt storage tank inserted or fitted therein. It is preferable to provide a gap that is small enough to absorb the difference in thermal expansion between the metal and the ceramic. In this case, it is preferable that an insulating ceramic powder is charged into the gap.
Even if the gap is provided, by charging the insulating ceramic powder into the gap,
This is because heat from the metal gutter member and the molten metal storage tank can be efficiently transmitted to the molten metal.
【００３１】なお、この金属製の樋部材、金属製の収容
槽の内側に、絶縁セラミックス製の樋部材・溶湯収容槽
が装入されてなる金属溶湯用樋及び金属溶湯用保持炉の
場合には、内側の絶縁セラミックス製の樋部材・溶湯収
容槽によって電気的な絶縁が図られ、ニクロム線等の電
熱線を利用した加熱手段から、樋の中を流動する金属溶
湯、溶湯収容槽内に収容されている金属溶湯に通電する
おそれはないので、加熱手段は、前述したように、必ず
しも、絶縁手段を介在させて金属製樋部材・収容槽に付
設させる必要はなく、加熱手段を金属製樋部材・溶湯収
容槽に穿設した複数の孔に、直接、挿脱したり、金属製
樋部材・溶湯収容槽の外周に、直接、取り付け、接触さ
せ、あるいは巻きつけることが可能である。In the case of the metal gutter and the holding furnace for molten metal in which the gutter member and the molten metal storage tank made of insulating ceramics are inserted inside the metal gutter member and the metal storage tank. Is electrically insulated by an inner insulating ceramic gutter member and molten metal storage tank, and is heated from a heating means using a heating wire such as a nichrome wire into the molten metal flowing in the gutter and into the molten metal storage tank. Since there is no danger of energizing the contained molten metal, the heating means does not necessarily need to be attached to the metal gutter member / storage tank with the insulating means interposed therebetween, as described above. It can be directly inserted into and removed from a plurality of holes formed in the gutter member and the molten metal storage tank, or can be directly attached to, brought into contact with, or wound around the outer periphery of the metal gutter member and the molten metal storage tank.
【００３２】本発明の、金属溶湯用保持炉、及び金属溶
湯用樋であって金属溶湯を流動させるための溝条を有す
る形式の金属溶湯用樋において、金属溶湯と大気との接
触を防止し、樋、保持炉を密閉するために、蓋部材を上
側から被せて組み立てる場合であっても、本発明におい
ては、前述したように、樋部材そのもの、溶湯収容槽そ
のものから効率良く金属溶湯が加熱、保温されるので、
蓋部材に発熱・加熱手段を付設する必要がなく、これに
よって、蓋の取り付け、取り外し等を行う保守、点検の
際にも、従来の場合の蓋に付設されていた加熱手段に接
続されている電熱線の断線というような問題が生じるこ
とはなくなり、保守、点検が容易になる。 更に、金属
製樋部材・溶湯収容槽を採用する場合に、蓋部材も金属
製にすれば、蓋部材との組み立てを非常に簡単に行うこ
とができるようになるのみならず、金属の成形・加工容
易性、精密加工が可能という特性ゆえに、密閉性が飛躍
的に向上した金属溶湯用樋、金属溶湯用保持炉を提供す
ることができる。In the molten metal holding furnace and the molten metal gutter according to the present invention, the metal molten metal gutter having a groove for flowing the molten metal is provided to prevent contact between the molten metal and the atmosphere. Even in the case of assembling with the lid member covered from above to seal the gutter and the holding furnace, as described above, in the present invention, the molten metal is efficiently heated from the gutter member itself and the molten metal storage tank itself. Because it is kept warm,
It is not necessary to attach a heat generating / heating means to the lid member, and thereby, even when performing maintenance or inspection for attaching / detaching the lid, it is connected to the heating means attached to the lid in the conventional case. Problems such as disconnection of the heating wire do not occur, and maintenance and inspection are facilitated. Further, when a metal gutter member and a molten metal storage tank are adopted, if the lid member is made of metal, not only the assembly with the lid member can be performed very easily, but also the molding and forming of the metal can be performed. A gutter for molten metal and a holding furnace for molten metal with greatly improved hermeticity can be provided because of the characteristics that processing is easy and precision processing is possible.
【００３３】以上説明してきた金属溶湯用樋において
も、本発明の第一の金属溶湯用樋と同じく、金属溶湯吐
出口近辺の温度が、該金属溶湯用樋中を搬送されている
金属溶湯の温度より高い温度、好ましくは１００℃〜１
５０℃高い温度に保たれているように構成すれば、前述
したのと同様に、湯切りを良くすることができる。[0033] In the molten metal gutter described above, similarly to the first molten metal gutter of the present invention, the temperature in the vicinity of the molten metal discharge port is the same as that of the molten metal conveyed in the molten metal gutter. Temperature higher than the temperature, preferably 100 ° C to 1
If it is configured to be maintained at a higher temperature by 50 ° C., it is possible to improve the drainage in the same manner as described above.
【００３４】このように、金属溶湯吐出口近辺の温度を
樋中を搬送されている金属溶湯の温度より高い温度、好
ましくは１００℃〜１５０℃高い温度に保つことは、絶
縁セラミックス製の樋部材に付設されている加熱手段、
金属製の樋部材に絶縁手段を介在させて、あるいは介在
させないで付設されている加熱手段の吐出口近辺におけ
る設置数や設置間隔を調整する（例えば、吐出口近辺に
おける加熱手段の設置数を増やす、吐出口近辺における
加熱手段の設置間隔を狭める）ことによって可能であ
り、また、吐出口近辺に設置されている加熱手段の出力
を他の部分に設置されている加熱手段の出力より大きく
することによっても可能である。As described above, maintaining the temperature in the vicinity of the molten metal discharge port at a temperature higher than the temperature of the molten metal being conveyed in the gutter, preferably at a temperature of 100 ° C. to 150 ° C. Heating means attached to the
Adjust the number of installations and the installation interval of the heating means provided with or without the insulating means in the metal gutter member near the discharge port (for example, increase the number of heating means installed near the discharge port) It is possible to make the output of the heating means installed near the discharge port larger than the output of the heating means installed in other parts. Is also possible.
【００３５】以上説明してきた本発明の金属溶湯用樋、
金属溶湯用保持炉は、外側ケーシングの中に装入して、
必要ならば外側ケーシングの中に断熱材層あるいは耐熱
材層などを装入した後その内側に装入して、また必要な
らば蓋部材を被せて、組み立てて使用されるが、金属製
樋部材・溶湯収容槽を採用しているので、外側ケーシン
グ、特に金属製の外側ケーシング内に装入する際の、組
み立てが非常に簡単、容易になる。The molten metal gutter of the present invention described above,
The holding furnace for molten metal is charged in the outer casing,
If necessary, heat insulation material layer or heat-resistant material layer is put in the outer casing, then put in the inside, and if necessary, the lid member is covered, and it is assembled and used. The use of the molten metal storage tank makes assembly very simple and easy when it is inserted into the outer casing, especially a metal outer casing.
【００３６】[0036]
【実施例１】図１は、この発明の金属溶湯用樋１を現す
図であって、吐出口端から符号Ｌで現される長さの吐出
口近辺（符号Ｌで現される長さは１００ｍｍ程度）の部
分３の温度は、金属溶湯用樋１中を搬送されている金属
溶湯の温度より、１００℃〜１５０℃高い温度に保たれ
ている。Embodiment 1 FIG. 1 is a view showing a gutter 1 for molten metal according to the present invention, in the vicinity of a discharge port having a length indicated by a symbol L from an end of the discharge port (the length indicated by a symbol L is The temperature of the portion 3 (about 100 mm) is maintained at a temperature 100 ° C. to 150 ° C. higher than the temperature of the molten metal being conveyed in the molten metal gutter 1.
【００３７】この実施例における金属溶湯用樋１は、金
属溶湯流動用の溝条を有する樋部材２によって構成され
ており、その上に蓋部材３１が被せられて組み立てられ
ている。しかし、吐出口における湯切りをよくするため
に、符号３で現される吐出口近辺の温度が前記のように
高温に保たれるように構成されていさえすれば、耐熱
鋼、耐熱性部材、セラミックスなどで製造されていて金
属溶湯流動用の溝条を有する樋部材からなり、その上に
蓋部材が被せられて組み立てられる形式、耐熱鋼、耐熱
性部材、セラミックスなどで製造されていて金属溶湯流
動用の中空の流路を有する管状の形式など、種々の構
成、形式の樋にすることができる。The molten metal gutter 1 in this embodiment is constituted by a gutter member 2 having grooves for flowing the molten metal, and a lid member 31 is put on the gutter member 2 and assembled. However, in order to improve drainage at the discharge port, as long as the temperature near the discharge port represented by reference numeral 3 is configured to be maintained at a high temperature as described above, heat-resistant steel, a heat-resistant member, It is made of ceramics and consists of a gutter member with grooves for the flow of molten metal, and a lid member is put on it to assemble it.It is made of heat-resistant steel, heat-resistant members, ceramics, etc. Various configurations and types of gutters, such as a tubular type having a hollow flow channel for flow, can be used.
【００３８】図１中、符号３で現される吐出口近辺部分
の温度を前記のように高温に保つための構成は、この部
分に電熱線を埋設する、あるいはこの部分の外周に電熱
線を巻き付ける、樋の外周に絶縁手段を介在させて電熱
線を巻き付ける、樋の外周にセラミックスヒーターを直
接接触させるなど、種々の構成を採用することができ
る。In FIG. 1, in order to keep the temperature near the discharge port indicated by reference numeral 3 high, as described above, a heating wire is buried in this portion, or a heating wire is provided around the periphery of this portion. Various configurations can be adopted, such as winding, heating wire with insulating means interposed around the outer periphery of the gutter, and ceramic heater directly contacting the outer periphery of the gutter.
【００３９】また、符号３で現される吐出口近辺部分を
取り外しできるように構成しておき、フランジ３２など
の取り付け手段を用いて、既存の金属溶湯用樋の先端に
取り付け、取り外しができるように構成することもでき
る。特に、実施例２、実施例４のように金属製の樋部材
を使用する構成であれば、この符号３で現される吐出口
近辺部分をも金属製にすることによって、容易に取り付
け、取り外しできるように構成できる。Further, a portion near the discharge port denoted by reference numeral 3 is configured to be detachable, and can be attached to and detached from the tip of an existing metal melt gutter using an attachment means such as a flange 32. Can also be configured. In particular, in the case of using a metal gutter member as in the second and fourth embodiments, the portion near the discharge port indicated by reference numeral 3 is also made of metal, so that it can be easily attached and detached. Can be configured to be able to.
【００４０】[0040]
【実施例２】図２、図３は、この発明の他の金属溶湯用
樋１を現す図である。Second Embodiment FIGS. 2 and 3 are views showing another gutter 1 for molten metal of the present invention.
【００４１】金属製の樋部材６に絶縁セラミックス製の
樋部材７を内装して金属溶湯用樋１が構成されている。
金属製の樋部材６には加熱手段が付設されており、当該
加熱手段は、金属製の樋部材６に所定間隔で穿設されて
いる複数の孔９の中に挿脱可能な棒状の発熱体（ヒータ
ー）１０によって構成されている。The metal gutter member 6 is provided with a gutter member 7 made of insulating ceramics inside a gutter member 6 made of metal.
The metal gutter member 6 is provided with a heating means, and the heating means is a rod-shaped heating element which can be inserted into and removed from a plurality of holes 9 formed at predetermined intervals in the metal gutter member 6. It is constituted by a body (heater) 10.
【００４２】発熱体（ヒーター）１０から発生した熱
は、良好な熱伝導性を示す金属でできている樋部材６、
良好な熱伝導性を示す絶縁セラミックス製の樋部材７を
介して樋の中を流動する金属溶湯１５に、効率良く、均
一に伝わり、金属溶湯１５を加熱・保温することができ
る（図３）。The heat generated from the heating element (heater) 10 is applied to a gutter member 6 made of metal having good thermal conductivity.
It is efficiently and uniformly transmitted to the molten metal 15 flowing in the gutter through the insulating ceramic gutter member 7 exhibiting good thermal conductivity, and the molten metal 15 can be heated and kept warm (FIG. 3). .
【００４３】また、絶縁セラミックス製の樋部材７の存
在によって、金属製の樋部材６が金属溶湯１５に、直
接、接触することがなくなるので、長期間、安定的に使
用し続けることができる。Further, the presence of the insulating ceramic gutter member 7 prevents the metal gutter member 6 from directly contacting the molten metal 15, so that the metal gutter member 6 can be stably used for a long period of time.
【００４４】棒状の発熱体（ヒーター）１０は、図４に
示すように、絶縁セラミックスで成型した管体１２内
に、絶縁セラミックスの粉末１３を装入し、この絶縁セ
ラミックスの粉末１３の中に埋設したニクロム線などの
電熱線１４をリード線１１を介して電源に接続して構成
することができる。なお、絶縁セラミックスの粉末１３
を装入していた方が、熱伝達効率の点では有利である
が、絶縁セラミックスの粉末１３を用いないこともでき
る。絶縁セラミックスの粉末１３を装入していても、装
入していなくても、ニクロム線などの電熱線は、その熱
膨張の際に自由に動くことができ、熱膨張が妨げられて
断線するおそれはない。As shown in FIG. 4, a rod-shaped heating element (heater) 10 is prepared by charging an insulating ceramic powder 13 into a tubular body 12 formed of insulating ceramic. The heating wire 14 such as a buried nichrome wire can be connected to a power supply via the lead wire 11. Insulating ceramic powder 13
Is advantageous in terms of heat transfer efficiency, but the insulating ceramic powder 13 may not be used. Regardless of whether or not the insulating ceramic powder 13 is charged, a heating wire such as a nichrome wire can move freely at the time of the thermal expansion, and the thermal expansion is hindered and the wire is broken. There is no fear.
【００４５】このようにして構成した金属溶湯用樋１
は、ケーシング４内に装入されている断熱材層５内に装
入され、上側に蓋部材３１を被せて組み立てられ、使用
される（図２、図３）。この際、前記棒状の発熱体（ヒ
ーター）１０の複数本を、金属製の樋部材６に所定間隔
で穿設されている複数の孔９の中にそれぞれ挿脱できる
ように、ケーシング４に、前記孔９の位置に対応させて
複数の開口８を設けておくと共に、断熱材層５にも前記
複数の孔９の位置に対応させて複数の孔を穿設してお
く。The molten metal gutter 1 thus constructed
Is assembled in the heat insulating material layer 5 installed in the casing 4, and is assembled and used by covering the upper side with the lid member 31 (FIGS. 2 and 3). At this time, a plurality of the rod-shaped heating elements (heaters) 10 are inserted into and removed from the casing 4 so as to be inserted into and removed from a plurality of holes 9 formed at predetermined intervals in the metal gutter member 6. A plurality of openings 8 are provided corresponding to the positions of the holes 9, and a plurality of holes are formed also in the heat insulating material layer 5 corresponding to the positions of the plurality of holes 9.
【００４６】前記において、金属製の樋部材６に穿設す
る複数の孔９の間隔を調節したり、複数の孔９の中で所
定の孔のみを選択して発熱体（ヒーター）１０を挿脱す
ること等によって、加熱の程度を調整することができ
る。In the above, the interval between the plurality of holes 9 drilled in the metal gutter member 6 is adjusted, or only a predetermined hole among the plurality of holes 9 is selected, and the heating element (heater) 10 is inserted. By removing, etc., the degree of heating can be adjusted.
【００４７】また、図２中、左端側にあたる吐出口近辺
においては、金属製の樋部材６の孔９内に挿入されてい
る発熱体（ヒーター）１０の出力を他の部分における孔
９内に挿入されている発熱体（ヒーター）１０の出力よ
り大きくすることによって、吐出口近辺における温度
を、樋の中を流動する金属溶湯１５の温度より１００℃
〜１５０℃高く保てば、吐出口における湯切りを良好に
することができる。In the vicinity of the discharge port on the left end side in FIG. 2, the output of the heating element (heater) 10 inserted into the hole 9 of the metal gutter member 6 is transferred to the hole 9 in the other part. By increasing the output of the inserted heating element (heater) 10, the temperature in the vicinity of the discharge port becomes 100 ° C. lower than the temperature of the molten metal 15 flowing in the gutter.
If the temperature is kept high by 150 ° C., draining at the discharge port can be made good.
【００４８】更に、蓋部材３１も金属によって製造して
おけば、図３図示のように、金属製の樋部材６との間で
フランジ３７のような取り付け手段を用いて、簡単に樋
を組み立てることができ、また樋の密閉性を向上させる
こともできる。Further, if the lid member 31 is also made of metal, as shown in FIG. 3, the gutter can be easily assembled between the metal gutter member 6 and the mounting means such as the flange 37. And the tightness of the gutter can be improved.
【００４９】なお、この実施例では、棒状の発熱体（ヒ
ーター）１０を、絶縁セラミックスで成型した管体１２
内に電熱線１４を装入して構成したが、金属製樋部材６
に絶縁セラミックス製樋部材７が内装されており、高温
で絶縁抵抗が高い絶縁セラミックスの特性により、電熱
線１４を、直接、金属製樋部材６の外周に接触させる構
成にしても、樋の中を流動する金属溶湯１５に通電する
おそれはない。In this embodiment, a rod-shaped heating element (heater) 10 is formed by a tube 12 made of insulating ceramics.
Although the heating wire 14 is inserted in the inside, the metal gutter member 6
A gutter member 7 made of insulated ceramics is provided inside the gutter, and due to the characteristics of the insulated ceramics having a high insulation resistance at a high temperature, the heating wire 14 can be brought into direct contact with the outer periphery of the gutter member 6 made of metal. There is no danger of energizing the molten metal 15 flowing.
【００５０】[0050]
【実施例３】図５図は、この発明の他の金属金属溶湯用
樋１を現すものである。Embodiment 3 FIG. 5 shows another gutter 1 for molten metal of the present invention.
【００５１】この実施例においては、絶縁セラミックス
製の樋部材７に、直接、発熱体（セラミックスヒータ
ー）３３を接触させ加熱している。In this embodiment, a heating element (ceramic heater) 33 is brought into direct contact with the gutter member 7 made of insulating ceramics to heat it.
【００５２】このようにしても、絶縁セラミックスは良
好な熱伝導性を有しているので、発熱体（セラミックス
ヒーター）３３から発せられた熱は、効率良く、また均
一に金属溶湯１５に伝えられる。Even in this case, since the insulating ceramics have good thermal conductivity, the heat generated from the heating element (ceramic heater) 33 is efficiently and uniformly transmitted to the molten metal 15. .
【００５３】また、絶縁セラミックスは高温で高い電気
絶縁性を示すので、図示していないが、ニクロム線のよ
うな電熱線を、直接、樋部材７の外周に巻き付けても、
金属溶湯１５に通電するおそれはない。Also, since the insulating ceramics exhibit high electrical insulation at high temperature, although not shown, even if a heating wire such as a nichrome wire is directly wound around the outer periphery of the gutter member 7,
There is no danger of energizing the molten metal 15.
【００５４】金属溶湯用樋１は外側ケーシング４内に断
熱性あるいは耐熱性の部材を介在させるなどして装入さ
れ、蓋３１を被せて、組み立てて使用されるが、この図
面では、断熱性あるいは耐熱性の部材等は省略してい
る。The molten metal gutter 1 is inserted into the outer casing 4 with an insulating or heat-resistant member interposed therebetween, and is used by assembling it with the lid 31 covered. Alternatively, heat-resistant members and the like are omitted.
【００５５】[0055]
【実施例４】図６は、この発明の更に他の金属溶湯用樋
１を現すものである。[Embodiment 4] FIG. 6 shows still another molten metal gutter 1 of the present invention.
【００５６】この実施例においては、金属製の樋部材６
を用い、これに絶縁手段を介在させて加熱手段を付設さ
せている。すなわち、リード線１１を介して電源に接続
されている加熱手段である電熱線３５を、絶縁セラミッ
クスで成型した管３４の中に装入し、これを金属製樋部
材６に接触させて金属溶湯用樋１を構成したものであ
る。In this embodiment, the metal gutter member 6 is used.
And a heating means is provided with an insulating means interposed therebetween. That is, a heating wire 35, which is a heating means connected to a power supply via the lead wire 11, is inserted into a tube 34 formed of insulating ceramics, and the tube 34 is brought into contact with the metal gutter member 6 to form a molten metal. The gutter 1 is configured.
【００５７】電熱線３５から発生された熱は、良好な熱
伝導体である絶縁セラミックスの管３４及び良好な熱伝
導体である金属でできている樋部材６を介して、効率良
く、また均一に金属溶湯１５に伝えられる。The heat generated from the heating wire 35 is efficiently and uniformly transmitted through the insulating ceramic tube 34 which is a good heat conductor and the gutter member 6 made of metal which is a good heat conductor. To the molten metal 15.
【００５８】電熱線３５を加熱手段として用いていて
も、加熱手段と金属製樋部材６との間に絶縁セラミック
スの管３４が介在されているので、電熱線３５から金属
溶湯１５に通電するおそれはない。Even if the heating wire 35 is used as a heating means, since the insulating ceramic pipe 34 is interposed between the heating means and the metal gutter member 6, it is necessary to supply electricity to the molten metal 15 from the heating wire 35. It is not.
【００５９】また蓋部材３６を金属にて製造しておけ
ば、金属の成形・加工容易性、精密加工容易な特性ゆえ
に、金属製樋部材６と金属製蓋部材３６とによる組み立
てを簡単に行うことができるように、両者を成形し、ま
た改善された密封性を得ることができるように、組み立
てを行うことができる。If the lid member 36 is made of metal, it is easy to assemble the metal gutter member 6 and the metal lid member 36 because the metal can be easily formed and processed and the precision processing is easy. As such, they can be molded and assembled so that improved sealing can be obtained.
【００６０】金属溶湯用樋１は外側ケーシング４内に断
熱性あるいは耐熱性の部材を介在させるなどして装入さ
れ、蓋３６を被せて組み立てて使用されるが、この図面
では、断熱性あるいは耐熱性の部材等は省略している。
また、外側ケーシング４も金属で製造しておけば、金属
製樋部材６と金属製外側ケーシング４との間の組み立て
を簡単に行うことができるように、両者それぞれを成形
できる。The molten metal gutter 1 is inserted into the outer casing 4 with a heat-insulating or heat-resistant member interposed therebetween, and is used by assembling it with the lid 36 covered. Heat resistant members and the like are omitted.
If the outer casing 4 is also made of metal, both can be formed so that the metal gutter member 6 and the metal outer casing 4 can be easily assembled.
【００６１】[0061]
【実施例５】図７、図８は、この発明の更に他の金属溶
湯用樋１を現す図である。Fifth Embodiment FIGS. 7 and 8 show still another metal molten metal gutter 1 of the present invention.
【００６２】図２〜図６を用いて説明した金属溶湯用樋
１は、金属溶湯１５を流動させるための溝条を有する樋
部材によって金属溶湯用樋が構成され、その上に蓋３
１、３６が被せられて組み立てられていたが、この実施
例では、金属溶湯流動用の流路１６を内部に有する管状
の金属溶湯用樋１を説明する。The molten metal gutter 1 described with reference to FIGS. 2 to 6 has a metal molten gutter formed by a gutter member having grooves for flowing the molten metal 15, and a lid 3 is provided thereon.
In this embodiment, a tubular molten metal gutter 1 having a flow path 16 for flowing molten metal therein will be described.
【００６３】図８に示されているように、円柱状の金属
製樋部材６に円柱状の絶縁セラミックス製樋部材７が内
装されて金属溶湯用樋１が構成されている。金属製の樋
部材６には加熱手段が付設されているが、この実施例で
は、円柱状の金属製樋部材６の中空部１７内に、リード
線１１を介して電源に接続されている電熱線（この実施
例では、ニクロム線）１４が装入されている。通電によ
って加熱された電熱線（この実施例では、ニクロム線）
１４から発生する熱は、良好な熱伝導体である金属製樋
部材６及び高温で良好な熱伝導性を示す絶縁セラミック
ス製の樋部材７を介して樋の中の流路１６を流動する金
属溶湯１５に効率よく又均一に伝えられる。As shown in FIG. 8, a cylindrical metal gutter member 6 is provided with a cylindrical insulating ceramic gutter member 7 therein to constitute the metal molten metal gutter 1. The metal gutter member 6 is provided with a heating means. In this embodiment, a power supply connected to a power supply via a lead wire 11 is provided in the hollow portion 17 of the cylindrical metal gutter member 6. A heating wire (in this embodiment, a nichrome wire) 14 is inserted. Heating wire heated by energization (Nichrome wire in this example)
The heat generated from the metal flows through the flow path 16 in the gutter via the metal gutter member 6 which is a good heat conductor and the insulating ceramic gutter member 7 which shows good heat conductivity at high temperature. It is efficiently and uniformly transmitted to the molten metal 15.
【００６４】この実施例の金属溶湯用樋１では金属製樋
部材６の内側に絶縁セラミックス製樋部材７が内装され
ているので、金属が、直接、金属溶湯に接触しない。そ
こで、長期間に亘って、安定して使用することができ
る。また、絶縁セラミックスは高温で高い絶縁抵抗を示
すので、電熱線１４が金属製樋部材６に接触することが
あっても、樋の中を流動している金属溶湯１５に通電す
るおそれはない。In the gutter 1 for molten metal of this embodiment, since the gutter member 7 made of insulating ceramics is provided inside the gutter member 6 made of metal, the metal does not directly contact the molten metal. Therefore, it can be used stably for a long time. Further, since the insulating ceramics have a high insulation resistance at a high temperature, even if the heating wire 14 comes into contact with the metal gutter member 6, there is no danger of energizing the molten metal 15 flowing in the gutter.
【００６５】図７では吐出口近辺にのみ、加熱手段が取
り付けられている状態を示しているが、前述した加熱手
段を金属溶湯用樋１の所定間隔ごとに設けると共に、吐
出口近辺においては、前述した加熱手段の設置間隔を狭
めたり、吐出口近辺に設けられている加熱手段の出力を
他の部分に設けられている加熱手段の出力より大きくす
ることによって、樋の吐出口近辺部分における温度を、
樋の中の流路１６を流動する金属溶湯１５の温度より１
００℃〜１５０℃高く保てば、吐出口における湯切りを
良好にすることができる。FIG. 7 shows a state in which the heating means is attached only to the vicinity of the discharge port. However, the above-described heating means is provided at predetermined intervals of the metal melt gutter 1 and, in the vicinity of the discharge port, By narrowing the installation interval of the above-mentioned heating means or making the output of the heating means provided in the vicinity of the discharge port larger than the output of the heating means provided in other parts, the temperature in the vicinity of the discharge port of the gutter is obtained. To
1 from the temperature of the molten metal 15 flowing through the flow path 16 in the gutter.
If the temperature is kept high at 00 ° C. to 150 ° C., it is possible to improve drainage at the discharge port.
【００６６】金属溶湯用樋は外側ケーシング４内に断熱
性あるいは耐熱性の部材を介在させるなどして装入され
て使用されるが、この図面では、断熱性あるいは耐熱性
の部材等は省略している。The gutter for the molten metal is used by being inserted into the outer casing 4 with a heat-insulating or heat-resistant member interposed therebetween. In this drawing, the heat-insulating or heat-resistant member is omitted. ing.
【００６７】[0067]
【実施例６】図９、図１０は、この発明の金属溶湯用保
持炉１８を説明する図である。Embodiment 6 FIGS. 9 and 10 are views for explaining a holding furnace 18 for molten metal of the present invention.
【００６８】金属製の収容槽２１の中に、絶縁セラミッ
クス製の溶湯収容槽２２が装入されて金属溶湯用保持炉
１８が構成されている。A molten metal storage tank 22 made of insulating ceramics is inserted into a metal storage tank 21 to form a metal molten metal holding furnace 18.
【００６９】この金属製収容槽２１には加熱手段が付設
されており、当該加熱手段は、前記実施例２で説明した
ものと同様の構成であるので、ここでは、説明を省略す
る。なお、図１０において図３で説明した実施例２の発
熱体（ヒーター）１０と同一の構成部分については、同
一の符号を付してある。The metal housing tank 21 is provided with a heating means. Since the heating means has the same configuration as that described in the second embodiment, the description is omitted here. In FIG. 10, the same components as those of the heating element (heater) 10 according to the second embodiment described in FIG. 3 are denoted by the same reference numerals.
【００７０】この金属溶湯用保持炉１８は、ケーシング
１９内に装入されている断熱材槽２０内に装入し、上側
に蓋３１を被せて組み立てて使用される。この場合、加
熱手段を、金属製の収容槽２１に所定間隔で穿設されて
いる複数の孔９の中に挿脱できるように、ケーシング１
９に、前記孔９の位置に対応させて複数の開口２３を設
けておくと共に、断熱材槽２０にも前記複数の孔９の位
置に対応させて複数の孔を穿設しておく必要がある。The holding furnace 18 for molten metal is used by assembling it into a heat insulating material tank 20 installed in a casing 19 and covering the upper part with a lid 31. In this case, the casing 1 is inserted so that the heating means can be inserted into and removed from the plurality of holes 9 formed at predetermined intervals in the metal storage tank 21.
9, it is necessary to provide a plurality of openings 23 corresponding to the positions of the holes 9, and also to provide a plurality of holes in the heat insulating material tank 20 according to the positions of the holes 9. is there.
【００７１】この実施例においても、金属製の収容槽２
１に付設されている加熱手段から発生される熱は、良好
な熱伝導体である金属製の収容槽２１、良好な熱伝導性
を有する絶縁セラミックス製の溶湯収容槽２２を介して
保持炉１８内に収容されている金属溶湯１５に効率よく
又均一に伝わり、効率よく、加熱、保温を行うことがで
きる。Also in this embodiment, the metal storage tank 2
The heat generated by the heating means attached to the heating furnace 18 is transferred to a holding furnace 18 through a metal housing tank 21 which is a good heat conductor and a molten metal housing tank 22 made of insulating ceramics having good heat conductivity. It is efficiently and uniformly transmitted to the molten metal 15 accommodated therein, so that heating and heat keeping can be performed efficiently.
【００７２】この実施例において、蓋３１をも金属製と
すれば、金属製の外槽２１との組み立てが容易になり、
またフランジ３７などの取り付け手段を用いることによ
って、保持炉１８の密閉性を改善することができる。In this embodiment, if the lid 31 is also made of metal, it is easy to assemble with the outer tank 21 made of metal.
In addition, by using the attachment means such as the flange 37, the hermeticity of the holding furnace 18 can be improved.
【００７３】この実施例では、前記実施例２で説明した
ように、棒状の発熱体（ヒーター）１０を、絶縁セラミ
ックスで成型した管体１２内に電熱線１４を装入して構
成したが、金属製収容槽２１に絶縁セラミックス製溶湯
収容槽２２が内装されており、高温で絶縁抵抗が高い絶
縁セラミックスの特性により、電熱線１４を、直接、金
属製収容槽２１の外周に接触させる構成にしても、保持
炉１８内に収容されている金属溶湯１５に通電するおそ
れはない。In this embodiment, as described in the second embodiment, the rod-shaped heating element (heater) 10 is constituted by inserting the heating wire 14 into the tube 12 molded of insulating ceramics. A molten metal storage tank 22 made of insulated ceramics is housed in a metal storage tank 21, and the heating wire 14 is brought into direct contact with the outer periphery of the metal storage tank 21 due to the characteristics of insulating ceramics having high insulation resistance at high temperature. However, there is no danger of energizing the molten metal 15 contained in the holding furnace 18.
【００７４】[0074]
【実施例７】図１１は、この発明の他の金属溶湯用保持
炉１８を説明する図である。Embodiment 7 FIG. 11 is a view for explaining another holding furnace 18 for molten metal of the present invention.
【００７５】金属溶湯用保持炉１８は、加熱手段が付設
されている絶縁セラミックス製の溶湯収容槽２２によっ
て構成されている。The holding furnace 18 for molten metal is constituted by a molten metal storage tank 22 provided with a heating means and made of insulating ceramics.
【００７６】溶湯収容槽２２に付設する加熱手段は、高
温で絶縁抵抗が高い絶縁セラミックスの特性により、直
接、溶湯収容槽２２の外周に接触、取り付けしても、保
持炉１８内に収容されている金属溶湯１５に通電するお
それはないので、この実施例では、リード線１１を介し
て電源に接続されている電熱線３８を直接溶湯収容槽２
２の外周に巻き付けている。The heating means attached to the molten metal storage tank 22 is housed in the holding furnace 18 even if it is directly in contact with or attached to the outer periphery of the molten metal storage tank 22 due to the characteristics of the insulating ceramic having a high temperature and high insulation resistance. In this embodiment, the heating wire 38 connected to the power supply via the lead wire 11 is directly connected to the molten metal storage tank 2 because there is no danger of energizing the molten metal 15.
2 around the outer circumference.
【００７７】良好な熱伝導性を有する絶縁セラミックス
の特性により、電熱線３８から発生された熱は、効率良
く、又均一に金属溶湯１５に伝わり、効率よく、加熱、
保温を行うことができる。The heat generated from the heating wire 38 is efficiently and uniformly transmitted to the molten metal 15 by the characteristics of the insulating ceramics having good thermal conductivity, so that the heat
Insulation can be performed.
【００７８】この実施例の金属溶湯用保持炉１８は、ケ
ーシング１９内に断熱材層などを介在して装入し、上側
に蓋３１を被せて組み立てられる。この実施例の場合に
は、発熱による電熱線３８の熱膨張を吸収できるよう
に、断熱材層との間に一定の隙間を設けるようにする必
要がある。The holding furnace 18 for molten metal of this embodiment is assembled into a casing 19 with a heat insulating material layer or the like interposed therebetween and a lid 31 placed on the upper side. In the case of this embodiment, it is necessary to provide a certain gap between the heating wire 38 and the heat insulating material layer so as to absorb the thermal expansion of the heating wire 38 due to heat generation.
【００７９】[0079]
【実施例８】図１２は、この発明の更に他の金属溶湯用
保持炉１８を説明する図である。[Embodiment 8] FIG. 12 is a view for explaining still another holding furnace 18 for molten metal of the present invention.
【００８０】絶縁手段を介在させて加熱手段が付設され
ている金属製の溶湯収容槽２１によって金属溶湯用保持
炉１８が構成されている。絶縁手段としては、絶縁セラ
ミックス製の板体３９を採用し、この上側に金属製の溶
湯収容槽２１を搭載する一方、リード線１１を介して電
源に接続している加熱手段たる電熱線３８をこの下側に
接触させている。A holding furnace 18 for molten metal is constituted by a molten metal storage tank 21 provided with a heating means via an insulating means. As the insulating means, a plate body 39 made of insulating ceramics is adopted, and a metal-made molten metal storage tank 21 is mounted on the upper side of the plate body 39. This lower side is in contact.
【００８１】高温で絶縁抵抗が高い絶縁セラミックスの
特性により、電熱線３８から収容されている金属溶湯１
５に通電するおそれはない。その一方、良好な熱伝導性
を有する絶縁セラミックス製の絶縁手段（板体３９）
と、良好な熱伝導性を有する金属製の溶湯収容槽２１を
介して、電熱線３８から発生された熱は、、効率良く、
又均一に金属溶湯１５に伝わり、効率よく、加熱、保温
を行うことができる。Due to the characteristics of insulating ceramics having high insulation resistance at high temperature, the molten metal 1 accommodated from the heating wire 38
There is no danger of energizing 5. On the other hand, insulating means made of insulating ceramics having good thermal conductivity (plate body 39)
And the heat generated from the heating wire 38 through the molten metal storage tank 21 having good thermal conductivity,
In addition, the heat is uniformly transmitted to the molten metal 15, so that heating and heat keeping can be performed efficiently.
【００８２】この実施例の金属溶湯用保持炉１８は、ケ
ーシング１９内に断熱材層などを介在して装入し、上側
に蓋３６（この実施例の場合は、金属製の蓋３６）を被
せて組み立てて使用されるが、図１２においては、断熱
材層などを省略している。The holding furnace 18 for molten metal of this embodiment is inserted into a casing 19 with a heat insulating layer or the like interposed therebetween, and a lid 36 (in this embodiment, a metal lid 36) is placed on the upper side. It is used by assembling it, but in FIG. 12, the heat insulating material layer and the like are omitted.
【００８３】[0083]
【発明の効果】本発明によれば、金属溶湯用樋の金属溶
湯吐出口近辺の温度を、該金属溶湯用樋中を搬送されて
いる金属溶湯の温度より高く、好ましくは１００℃〜１
５０℃高い温度に保つことによって、金属溶湯用樋の傾
斜角度を調節する必要なく、また金属溶湯にぬれない材
質で吐出口近辺を製造する必要なしに、湯切れを良くす
ることができる。According to the present invention, the temperature of the molten metal gutter in the vicinity of the molten metal discharge port is higher than the temperature of the molten metal being conveyed in the molten metal gutter, preferably 100 ° C to 1 ° C.
By keeping the temperature higher by 50 ° C., the drainage of the molten metal can be improved without having to adjust the inclination angle of the metal melt gutter and without having to manufacture the vicinity of the discharge port with a material that does not get wet with the molten metal.
【００８４】また、高温で良好な熱伝導性を有すると共
に高温で良好な電気絶縁性を有する絶縁セラミックスと
良好な熱伝導体である金属とによって樋部材、金属溶湯
収容槽を構成したので、加熱手段から樋内を流動中ある
いは保持炉に収容中の金属溶湯に通電するおそれなく、
金属溶湯を効率よく又均一に加熱、保温することができ
る。Further, the gutter member and the molten metal storage tank are constituted by insulating ceramics having good thermal conductivity at a high temperature and also having good electrical insulation at a high temperature and a metal which is a good heat conductor. There is no danger of energizing the molten metal flowing in the gutter or stored in the holding furnace from the means,
The metal melt can be efficiently and uniformly heated and kept warm.
【００８５】更に、金属の成形・加工容易性、精密加工
し得る特性より、樋や保持炉の組み立てを容易にすると
共に、樋や保持炉の密閉性を改善することができる。Further, the ease of assembling the gutter and the holding furnace can be improved and the tightness of the gutter and the holding furnace can be improved due to the ease of forming / working the metal and the characteristics capable of precision processing.
【図１】 この発明の金属溶湯用樋の好ましい実施例を
説明する斜視図。FIG. 1 is a perspective view illustrating a preferred embodiment of a metal gutter according to the present invention.
【図２】 この発明の金属溶湯用樋の他の好ましい実施
例を説明する斜視図。FIG. 2 is a perspective view for explaining another preferred embodiment of the metal melt gutter of the present invention.
【図３】 図２図示の金属溶湯用樋の一部を省略した断
面図。FIG. 3 is a cross-sectional view of the molten metal gutter shown in FIG.
【図４】 棒状発熱体の好ましい実施例を説明する断面
図。FIG. 4 is a sectional view illustrating a preferred embodiment of a rod-shaped heating element.
【図５】 この発明の金属溶湯用樋の他の好ましい実施
例の一部を省略した断面図。FIG. 5 is a cross-sectional view in which a part of another preferred embodiment of the molten metal gutter of the present invention is omitted.
【図６】 この発明の金属溶湯用樋の他の好ましい実施
例の一部を省略した断面図。FIG. 6 is a cross-sectional view in which a part of another preferred embodiment of the metal melt gutter of the present invention is omitted.
【図７】 この発明の金属溶湯用樋の更に他の好ましい
実施例を説明する斜視図。FIG. 7 is a perspective view for explaining still another preferred embodiment of the molten metal gutter of the present invention.
【図８】 図７図示の金属溶湯用樋の一部を省略した断
面図。FIG. 8 is a cross-sectional view in which a part of the molten metal gutter shown in FIG. 7 is omitted.
【図９】 この発明の金属溶湯用保持炉の好ましい実施
例を説明する斜視図。FIG. 9 is a perspective view illustrating a preferred embodiment of a holding furnace for molten metal of the present invention.
【図１０】 図９図示の金属溶湯用保持炉の一部を省略
した断面図。10 is a cross-sectional view in which a part of the holding furnace for molten metal shown in FIG. 9 is omitted.
【図１１】 この発明の金属溶湯用保持炉の他の好まし
い実施例の一部を省略した断面図。FIG. 11 is a cross-sectional view in which a part of another preferred embodiment of the holding furnace for molten metal of the present invention is omitted.
【図１２】 この発明の金属溶湯用保持炉の更に他の好
ましい実施例の一部を省略した断面図。FIG. 12 is a cross-sectional view of a further preferred embodiment of a molten metal holding furnace according to the present invention, in which a part of the furnace is omitted.
【図１３】 従来の金属溶湯用樋の一部を省略した断面
図。FIG. 13 is a cross-sectional view in which a part of a conventional metal melt gutter is omitted.
１ 金属溶湯用樋 ２ 樋部材 ３ 吐出口近辺部分 ６ 金属製樋部材 ７ セラミックス製樋部材 １０ 発熱体 １１ リード線 １５ 金属溶湯 １８ 金属溶湯用保持炉 ２１ 金属製収容槽 ２２ セラミックス製溶湯収容槽 ３３ セラミックスヒーター １４、３５、３８ 電熱線 ３１、３６ 蓋 DESCRIPTION OF SYMBOLS 1 Gutter for molten metal 2 Gutter member 3 Part near discharge port 6 Metal gutter member 7 Ceramic gutter member 10 Heating element 11 Lead wire 15 Molten metal 18 Holding furnace for molten metal 21 Metal storage tank 22 Ceramic storage tank 33 Ceramic heater 14, 35, 38 Heating wire 31, 36 Lid
Claims (8)
て、金属溶湯吐出口近辺の温度が、該金属溶湯用樋中を
搬送されている金属溶湯の温度より、高い温度に保たれ
ていることを特徴とする金属溶湯用樋。1. A metal melt gutter for transporting a metal melt, wherein a temperature near a metal melt discharge port is maintained at a higher temperature than a temperature of the metal melt being conveyed in the metal melt gutter. A gutter for molten metal.
て、加熱手段が付設されている絶縁セラミックス製の樋
部材からなる金属溶湯用樋。2. A metal gutter for transporting a metal melt, the metal gutter being made of an insulating ceramic gutter member provided with a heating means.
て、絶縁手段を介在させて加熱手段が付設されている金
属製の樋部材からなる金属溶湯用樋。3. A metal gutter for conveying a metal melt, the metal gutter comprising a metal gutter member provided with a heating means via an insulating means.
て、加熱手段が付設されている金属製の樋部材の内側に
絶縁セラミックス製の樋部材が装入されてなる金属溶湯
用樋。4. A gutter for a molten metal for conveying a molten metal, wherein a gutter member made of an insulating ceramic is inserted inside a gutter member made of metal provided with a heating means.
湯用樋中を搬送されている金属溶湯の温度より、高い温
度に保たれていることを特徴とする請求項２乃至請求項
４のいずれか１項記載の金属溶湯用樋。5. The method according to claim 2, wherein the temperature near the molten metal discharge port is kept higher than the temperature of the molten metal being conveyed in the molten metal gutter. The gutter for molten metal according to any one of claims 1 to 4.
って、加熱手段が付設されている絶縁セラミックス製の
溶湯収容槽からなる金属溶湯用保持炉。6. A holding furnace for a molten metal for accommodating a molten metal, the holding furnace for a molten metal comprising a molten metal accommodation tank made of insulating ceramics provided with a heating means.
って、絶縁手段を介在させて加熱手段が付設されている
金属製の溶湯収容槽からなる金属溶湯用保持炉。7. A holding furnace for a molten metal for accommodating a molten metal, wherein the holding furnace for a molten metal comprises a molten metal storage tank provided with a heating means via an insulating means.
って、加熱手段が付設されている金属製の収容槽の内側
に絶縁セラミックス製の溶湯収容槽が装入されてなる金
属溶湯用保持炉。8. A holding furnace for a molten metal for accommodating a molten metal, wherein the insulative ceramics accommodating tank is inserted inside a metal accommodating tank provided with a heating means. Holding furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30663198A JP4534048B2 (en) | 1998-10-28 | 1998-10-28 | Metal molten metal bowl |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30663198A JP4534048B2 (en) | 1998-10-28 | 1998-10-28 | Metal molten metal bowl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000130959A true JP2000130959A (en) | 2000-05-12 |
| JP4534048B2 JP4534048B2 (en) | 2010-09-01 |
Family
ID=17959426
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30663198A Expired - Fee Related JP4534048B2 (en) | 1998-10-28 | 1998-10-28 | Metal molten metal bowl |
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| Country | Link |
|---|---|
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| US10408540B2 (en) | 2016-12-21 | 2019-09-10 | Fives North American Combustion, Inc. | Launder assembly |
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