JP3110281B2 - Holding container for molten metal induction heating device - Google Patents
Holding container for molten metal induction heating deviceInfo
- Publication number
- JP3110281B2 JP3110281B2 JP07101066A JP10106695A JP3110281B2 JP 3110281 B2 JP3110281 B2 JP 3110281B2 JP 07101066 A JP07101066 A JP 07101066A JP 10106695 A JP10106695 A JP 10106695A JP 3110281 B2 JP3110281 B2 JP 3110281B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- induction heating
- flow path
- holding container
- bathtub
- 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.)
- Expired - Fee Related
Links
Landscapes
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Furnace Details (AREA)
- General Induction Heating (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、溶融金属、例えば、鉄
またはアルミニウムなどの精錬および鋳造工程におい
て、誘導電磁力および誘導加熱による溶融金属の攪拌や
加熱を促進するに適した保持容器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holding container suitable for promoting agitation and heating of a molten metal by induction electromagnetic force and induction heating in a process of refining and casting molten metal, for example, iron or aluminum.
【０００２】[0002]
【従来の技術】まず、従来の電磁誘導加熱を用いた溶融
金属の保持容器について述べる。溶融された鉄、銅ある
いはアルミニウムなどの金属の精錬および鋳造工程にお
いて、無欠陥で均質の製品を得るために、電磁誘導加熱
が応用されている。例えば、実開昭５９−１９０４５５
号公報では製鉄プロセスでの鋳造工程において、タンデ
ィッシュに交流電磁石を鎖交させ、誘導加熱によって、
鋳型での凝固反応に適した温度の維持をはかるための装
置と、交流電磁石の電圧および電流の制御手段の一例が
示されている。2. Description of the Related Art First, a conventional molten metal holding container using electromagnetic induction heating will be described. In the refining and casting processes of molten metals such as iron, copper or aluminum, electromagnetic induction heating has been applied to obtain defect-free and homogeneous products. For example, Japanese Utility Model Laid-Open No. 59-190455
In the gazette, in the casting process in the iron making process, an alternating current electromagnet is linked to a tundish, and induction heating is used.
An apparatus for maintaining a temperature suitable for a coagulation reaction in a mold and an example of means for controlling the voltage and current of an AC electromagnet are shown.
【０００３】上記のような溶融金属の電磁誘導加熱の応
用例においては、加熱のしくみはどの装置でも同一で、
溶融金属内に誘導電流を誘起することによって生じるジ
ュール発熱を利用している。実際には、精錬装置または
鋳造装置の構造、形状などを考慮して、交流電磁石を複
数使用したり、交流の相数を増やしたり、それらの空間
配置を工夫することによって加熱領域や効率を調整す
る。[0003] In the application example of the electromagnetic induction heating of the molten metal as described above, the heating mechanism is the same in any apparatus.
It utilizes Joule heat generated by inducing induced current in molten metal. Actually, the heating area and efficiency are adjusted by using multiple AC electromagnets, increasing the number of AC phases, and devising the spatial arrangement of them, taking into account the structure and shape of the refining equipment or casting equipment. I do.
【０００４】[0004]
【発明が解決しようとする課題】しかし、前記の装置で
は、以下の点を改善する必要がある。 電磁誘導による加熱によって溶融金属は熱膨張し、対
流が発生するが、対流のみによって温度あるいは溶融金
属の均質化を行うためにはある程度の時間を要する。 温度、成分の均質化を短時間に達成するために、対流
を大きくするべく投入電力を増すと、電源装置の電源容
量が増大し、精錬装置や鋳造装置自体が大きくなる。加
えて、電流の増大により、電磁石コイルの温度も上昇
し、水冷が必要となって、さらに装置が大きくなり、複
雑化する。また、電磁石にかかる電磁力も大きくなるた
め、交流電磁石および精錬装置の構造強度を高くする必
要がある。 投入電力の増大は、電源系統設備の巨大化・複雑化と
ともに、エネルギー消費の面から生産コストを上昇させ
る。 投入電力の増大は周辺装置の電磁部品類への電磁的障
害を助長する。However, in the above-mentioned apparatus, it is necessary to improve the following points. The molten metal thermally expands due to heating by electromagnetic induction, and convection is generated. However, it takes a certain time to homogenize the temperature or the molten metal only by the convection. If the input power is increased to increase the convection in order to achieve the homogenization of the temperature and components in a short time, the power supply capacity of the power supply device increases, and the refining device and the casting device themselves increase in size. In addition, the increase in current also increases the temperature of the electromagnet coil, necessitating water cooling, and further increasing the size and complexity of the device. Further, since the electromagnetic force applied to the electromagnet increases, it is necessary to increase the structural strength of the AC electromagnet and the refining device. Increasing the power input increases the size and complexity of the power supply system equipment and increases the production cost in terms of energy consumption. Increasing the input power promotes electromagnetic interference to electromagnetic components of peripheral devices.
【０００５】本発明は前記問題点を解決し、溶融金属を
加熱しながら、効率よく攪拌でき、目標とする作業を短
時間に終えることができる誘導加熱装置用保持容器を提
供することを目的とする。An object of the present invention is to solve the above-mentioned problems and to provide a holding container for an induction heating device which can efficiently stir while heating a molten metal and can finish a target operation in a short time. I do.
【０００６】[0006]
【課題を解決するための手段】上述した課題を解決する
ために本発明では、耐火物製の容器本体内に設けた溶融
金属を蓄える２つの浴槽と、浴槽間を連結する２つの平
面的に並列した流路と、前記浴槽と前記流路を連ねて形
成される１つの閉路に鎖交する交流電磁石とを有する溶
融金属誘導加熱装置において、前記流路の少なくとも一
方の水平面にテーパー角を設けたことを特徴とする溶融
金属誘導加熱装置用保持容器を用いる。In order to solve the above-mentioned problems, according to the present invention, there are provided two bathtubs provided in a refractory container main body for storing molten metal, and two planar bathtubs connecting the bathtubs. In a molten metal induction heating device having a parallel flow path and an alternating current electromagnet linked to one closed path formed by connecting the bathtub and the flow path, at least one horizontal surface of the flow path has a taper angle. A holding container for a molten metal induction heating device, characterized in that:
【０００７】[0007]
【作用】以下、本発明の作用を図に基づいて説明する。
図１は本発明の第１および第２の実施例の保持容器の平
面図で、図２は第１の実施例の、図３は第２の実施例の
側面図である。The operation of the present invention will be described below with reference to the drawings.
FIG. 1 is a plan view of the holding container according to the first and second embodiments of the present invention, FIG. 2 is a side view of the first embodiment, and FIG. 3 is a side view of the second embodiment.
【０００８】通常の溶融金属誘導加熱用保持容器は、１
つまたは複数の浴槽を持ち、浴槽が１つの場合は浴槽に
別途、溶融金属の迂回流路が設けられ、複数の浴槽があ
る場合は浴槽間を連結する流路が設けられており、浴槽
と流路からなる閉路が形成される。保持容器は溶融金属
を効率よく加熱するため、ふつう、図１のように、流路
１と浴槽２からなる閉路がコイルと鉄心で構成された交
流電磁石と鎖交している。[0008] The usual holding container for induction heating of molten metal includes:
If there is one or more bathtubs, if there is one bathtub, a separate detour flow path of molten metal is provided in the bathtub, and if there is more than one bathtub, a flow path connecting the bathtubs is provided, A closed circuit including the flow path is formed. In order to efficiently heat the molten metal in the holding container, a closed circuit including a flow path 1 and a bathtub 2 is linked with an AC electromagnet composed of a coil and an iron core, as shown in FIG.
【０００９】本発明では、溶融金属の均温化・均質化を
対流だけでなく、攪拌流を付加するため、浴槽間を連結
する流路に、例えばテーパー角を付与して、流路の断面
積が一方の浴槽から他方の浴槽に向って連続的に変化す
るように形成するか、もしくは流路にテーパー角および
仰角を、浴槽と流路から構成される閉路について任意に
とった進行方向に対し、同一方向に施す。According to the present invention, not only convection but also stirring flow is added for the soaking and homogenization of the molten metal. For example, a taper angle is given to the flow path connecting the bathtubs to cut the flow path. Either the area is formed so as to change continuously from one bathtub to the other bathtub, or the taper angle and elevation angle of the flow path are set in the direction of travel arbitrarily set for the closed path composed of the bathtub and the flow path. In the same direction.
【００１０】即ち、図１および図２に示す如く、外面を
鉄皮で被覆した耐火物製の矩形ブロック状の容器本体７
内に、溶融金属３を蓄える２つの浴槽２を間隔をおいて
設け、これら浴槽２間を連結する２つの流路１を容器底
部側に形成するとともに、前記浴槽２と前記流路１を連
ねて形成される１つの閉路に鎖交するコイル５と鉄心４
からなる交流電磁石を設けて構成している。この保持容
器において、前記２つの流路１のそれぞれにテーパー角
が水平面内に、かつ、両テーパー部が互いに平行になる
如く施されている。テーパー角は最低いずれか一方の流
路に設けられている必要がある。That is, as shown in FIGS. 1 and 2, a rectangular block-shaped container body 7 made of a refractory material whose outer surface is covered with an iron shell.
In the inside, two bathtubs 2 for storing the molten metal 3 are provided at intervals, and two flow paths 1 connecting the bathtubs 2 are formed on the bottom side of the container, and the bathtub 2 and the flow path 1 are connected. Coil 5 and iron core 4 linking to one closed circuit formed by
And an AC electromagnet composed of In this holding container, each of the two flow paths 1 is provided such that a taper angle is in a horizontal plane and both tapered portions are parallel to each other. The taper angle needs to be provided in at least one of the flow paths.
【００１１】流路のテーパー角は、大体１５°〜４５°
の範囲となる。テーパー角が１５°未満では、溶融金属
に流れを付与するのが困難で、攪拌量も小さくなり、ま
た、角度が４５°を超えると閉路全体の流れに寄与しな
いことから、上記の範囲とした。このテーパー角は、電
磁石、流路、浴槽の幾何学的配置に基づき、上記の範囲
内で決めればよい。[0011] The taper angle of the flow path is approximately 15 ° to 45 °.
Range. When the taper angle is less than 15 °, it is difficult to give a flow to the molten metal, the amount of stirring is small, and when the angle exceeds 45 °, it does not contribute to the flow of the entire closed circuit. . This taper angle may be determined within the above range based on the geometric arrangement of the electromagnet, the flow path, and the bathtub.
【００１２】また、本発明の他の例ではさらに、図１、
図３および図４に示すように、水平面内にテーパーを有
する流路１に仰角が付与されている。つまり、各流路１
と浴槽２との２つの接合面のうち、小さな接合面（溶融
金属の流入口）１０から大きな接合面（溶融金属の流出
口）１１に向かって仰角が設けられている。In another example of the present invention, FIG.
As shown in FIGS. 3 and 4, an elevation angle is given to the flow path 1 having a taper in a horizontal plane. That is, each flow path 1
An elevation angle is provided from a small joining surface (inlet of molten metal) 10 to a large joining surface (outflow of molten metal) 11 of the two joining surfaces of the bath and the bathtub 2.
【００１３】コイル５に交流あるいはパルス電流など時
間的に変化する電流６が印加されると、鉄心４に時間変
化する磁場８が発生する。すると、磁場８を相殺するよ
う溶融金属３に誘導電流９が誘起される。誘導電流９は
磁場８の変化に伴い、図１において右回りあるいは左回
りとなる。また、誘導電流９は抵抗のある溶融金属３内
を流れるためジュール熱を生じ、溶融金属３が加熱され
る。さらに、加熱された溶融金属３は熱膨張し、加熱の
空間的な強弱分布によって対流が発生する。When a time-varying current 6 such as an alternating current or a pulse current is applied to the coil 5, a time-varying magnetic field 8 is generated in the iron core 4. Then, an induced current 9 is induced in the molten metal 3 so as to cancel the magnetic field 8. The induced current 9 turns clockwise or counterclockwise in FIG. 1 with the change in the magnetic field 8. Further, the induced current 9 flows through the molten metal 3 having resistance, so that Joule heat is generated, and the molten metal 3 is heated. Furthermore, the heated molten metal 3 thermally expands, and convection occurs due to the spatial distribution of heating.
【００１４】一方、誘導加熱中では、溶融金属３内にも
磁場があるため、誘導電流と磁場からローレンツ力１２
が両者に垂直に発生する。図１では、流路１において、
電流は均質な材質内では最も短い経路を流れようとする
ため、誘導電流９の大きさは鉄心側が大きく、外壁側が
小さい、また、電磁石がつくる磁場はほとんどが鉄心内
に集中しているため、流路１内においては、誘導電流が
つくる磁場が電磁石からつくられる磁場よりも強く、そ
の結果、流路１内のローレンツ力１２は鉄心側が極端に
強い断面中心に向くピンチ力となる。電流６の向きが変
化しても、フレミングの左手の法則からローレンツ力１
２は常に同じ方向で、ただ大きさが変化するだけとな
る。このローレンツ力１２は通常の保持容器において
は、テーパー角がないため水平面に関して対称分布とな
り、対流だけでは浴槽間の溶融金属の混合はほとんどな
されない。On the other hand, during induction heating, since a magnetic field is also present in the molten metal 3, the Lorentz force 12
Occur perpendicularly to both. In FIG. 1, in the flow path 1,
Since the current tends to flow through the shortest path in a homogeneous material, the magnitude of the induced current 9 is large on the iron core side and small on the outer wall side, and most of the magnetic field generated by the electromagnet is concentrated in the iron core, In the flow path 1, the magnetic field generated by the induced current is stronger than the magnetic field generated by the electromagnet. As a result, the Lorentz force 12 in the flow path 1 becomes a pinch force whose core side is extremely strong toward the center of the cross section. Even if the direction of the current 6 changes, the Lorentz force 1
2 is always in the same direction, only the size changes. This Lorentz force 12 has a symmetrical distribution with respect to a horizontal plane because there is no taper angle in a normal holding vessel, and mixing of molten metal between bathtubs is hardly performed only by convection.
【００１５】本発明の第１の実施例では、流路１に容器
中心、すなわちコイル５の中心軸に対して点対称にテー
パー角を設け、流路内鉄心側の強いローレンツ力１２の
方向を同じく点対称とすることによって、流路内の溶融
金属を浴槽に押し出せるようにし、すなわち、流路の断
面積の広い側に向って溶融金属が流れ、溶融金属が浴槽
間を移動できるようになっている。流路のテーパーは誘
導電流の拡散によるローレンツ力低下防止のため、図１
および図２のように水平面内のみとし、ラッパ状にはし
ないことが望ましい。また、同じ理由で流路の高さ・幅
を流出入の大きな妨げにならない程度に小さくすること
が望ましい。In the first embodiment of the present invention, a taper angle is provided in the flow path 1 symmetrically with respect to the center of the vessel, that is, the center axis of the coil 5 so that the direction of the strong Lorentz force 12 on the iron core side in the flow path is changed. The same point symmetry allows the molten metal in the flow channel to be extruded into the bathtub, that is, the molten metal flows toward the wide side of the cross-sectional area of the flow channel so that the molten metal can move between the bathtubs. Has become. The taper of the flow path is shown in FIG.
Also, it is desirable not to make it into a trumpet shape only in the horizontal plane as shown in FIG. Further, for the same reason, it is desirable to reduce the height and width of the flow path to such an extent that they do not greatly hinder inflow and outflow.
【００１６】さらに、本発明の第２の実施例では、テー
パー角については第１の実施例と同一で、熱対流を積極
的に攪拌に寄与させるため、図３で示すように流路１は
流入口１０から流出口１１へ仰角を設けている。したが
って、側面から眺めた場合、２つの流路は交差する。熱
膨張により密度が低くなった溶融金属は仰角方向に流れ
て他方の浴槽に移動し易くなり、結果的に攪拌が促進さ
れる。このような働きを良好に果たすためには、仰角は
０〜２０°の範囲内で、溶融金属の熱膨張率、密度、電
気伝導度、粘性などを考慮して選べばよく、好適な範囲
は１８°前後である。２０°を超えると静圧がかかるの
で好ましくない。Further, in the second embodiment of the present invention, the taper angle is the same as that of the first embodiment, and the flow path 1 is formed as shown in FIG. An elevation angle is provided from the inlet 10 to the outlet 11. Therefore, when viewed from the side, the two flow paths intersect. The molten metal whose density has decreased due to thermal expansion flows in the elevation direction and easily moves to the other bath, and as a result, stirring is promoted. In order to perform such a function well, the elevation angle may be selected in the range of 0 to 20 ° in consideration of the coefficient of thermal expansion, density, electrical conductivity, viscosity, etc. of the molten metal, and the preferred range is It is around 18 °. If it exceeds 20 °, a static pressure is applied, which is not preferable.
【００１７】なお、流路１はできるだけ浴槽底部に設
け、加熱によって熱膨張した溶融金属の浴槽内での対流
を利用できるようにすることも望ましい。It is desirable that the flow path 1 is provided at the bottom of the bathtub as much as possible so that convection of the molten metal thermally expanded by heating in the bathtub can be utilized.
【００１８】[0018]
【実施例】以下、本発明について第１の実施例を図面に
基づいて説明する。図１の保持容器は交流電磁石を除い
た容器の外形寸法は１２００mm（縦）×１２００mm
（横）×７００mm（高さ）である。流路には水平方向に
１８°のテーパー角が施されており、仰角は付与されて
いない。容器は耐火物煉瓦で形作られており、５mm厚の
鉄皮で外壁と底部が囲われている。図では鉄皮は省略さ
れている。２つの浴槽２に溶融金属３として溶鋼を液面
高さが浴槽底面より５００mmのところまで投入した。交
流電磁石のコイル５はターン数が４４で、６８０Ａ、周
波数が６０Ｈｚの交流電流を印加した。電流印加開始１
０秒後以降の１０秒間、電磁石と鎖交している流路１と
浴槽２との境界線上の点Ｐでの、出口面に垂直な方向に
ついて時間平均的な流速を材質がモリブデンサーメット
の耐熱流速計を用いて測定したところ、平均流速は０．
１９m/s であった。この後、浴槽の１つにマンガン粉末
を投与し、他の浴槽の溶融金属の液面で分光スペクトル
を観測したところ、４１秒後に検出された。次に、誘導
加熱を中止し、その直後、熱対流が十分に大きいうちに
浴槽の一方に炭素粉末を投与し、２分間放置したが、そ
の間、３０秒間隔のＣＤプローブによる分析では、他方
の浴槽から炭素成分は検出できなかった。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. The holding container of FIG. 1 has an outer dimension of 1200 mm (vertical) × 1200 mm excluding the AC electromagnet.
(W) x 700 mm (H). The channel has a taper angle of 18 ° in the horizontal direction, and no elevation angle is given. The container is made of refractory brick, and its outer wall and bottom are surrounded by a 5 mm thick steel shell. In the figure, the iron skin is omitted. Molten steel as molten metal 3 was poured into two bathtubs 2 until the liquid level reached 500 mm from the bottom of the bathtub. The coil 5 of the AC electromagnet was applied with an AC current having a turn number of 44, 680 A, and a frequency of 60 Hz. Current application start 1
For 10 seconds after 0 seconds, the time-average flow velocity in the direction perpendicular to the outlet surface at the point P on the boundary between the flow path 1 and the bathtub 2 linked to the electromagnet is determined by the heat resistance of the molybdenum cermet. When measured using a current meter, the average flow rate was 0.1.
It was 19 m / s. Thereafter, manganese powder was administered to one of the bathtubs, and a spectrum was observed at the liquid level of the molten metal in the other bathtub. The spectrum was detected after 41 seconds. Next, the induction heating was stopped, and immediately thereafter, while the heat convection was sufficiently large, the carbon powder was administered to one of the bathtubs and allowed to stand for 2 minutes. No carbon components could be detected from the bath.
【００１９】次に、本発明の第２の実施例を図面に基づ
いて説明する。保持容器の外形寸法、材料は第１の実施
例と同じである。鉄皮による被覆についても同様であ
る。しかし、２つの流路については図３に示されている
如く、おのおの１８°の仰角が設けられ、互いに交差し
ている。溶融金属の投入高さおよび交流電磁石の電気的
条件も第１の実施例と同じである。電流印加開始１０秒
後以降の１０秒間、電磁石と鎖交している流路１と浴槽
２との境界線上の点Ｐでの、出口面に垂直な方向につい
て時間平均的な流速を耐熱流速計を用いて測定したとこ
ろ、平均流速は０．２２m/s であった。この後、浴槽の
１つにマンガン粉末を投与し、他の浴槽の溶融金属の液
面で分光スペクトルを観測したところ、３５秒後に検出
された。誘導加熱を中止し、その直後、熱対流が十分に
大きいうちに浴槽の一方に炭素粉末を投与し、２分間放
置したが、その間、３０秒間隔のＣＤプローブによる分
析では、他方の浴槽から炭素成分は検出できなかった。Next, a second embodiment of the present invention will be described with reference to the drawings. The outer dimensions and material of the holding container are the same as in the first embodiment. The same is true for coating with iron skin. However, as shown in FIG. 3, the two flow paths are each provided with an elevation angle of 18 ° and cross each other. The charging height of the molten metal and the electrical conditions of the AC electromagnet are the same as in the first embodiment. For 10 seconds after the start of the current application, the time-averaged flow rate in a direction perpendicular to the outlet surface at a point P on the boundary line between the flow path 1 and the bathtub 2 linked to the electromagnet is measured with a heat-resistant current meter. As a result, the average flow velocity was 0.22 m / s. Thereafter, manganese powder was administered to one of the bathtubs, and the spectrum was observed at the liquid level of the molten metal in the other bathtub, and was detected after 35 seconds. The induction heating was stopped, and immediately thereafter, while the heat convection was sufficiently large, carbon powder was administered to one of the bathtubs and left for 2 minutes. No components could be detected.
【００２０】このように本発明を用いれば、特に設備付
加する必要なく、溶融金属の誘導加熱と同時に攪拌を行
うことができる。本実施例において、溶融金属として溶
鋼を例としたが、本発明は、この例に限定されることな
く、アルミニウム、銅、チタンなどの任意の溶融金属に
適用できる。また、浴槽や流路の数がさらに多い場合に
も、各閉路について、本発明を適用すれば同様の効果を
得ることができる。As described above, according to the present invention, the stirring can be performed simultaneously with the induction heating of the molten metal without any additional equipment. In the present embodiment, molten steel is taken as an example of the molten metal, but the present invention is not limited to this example and can be applied to any molten metal such as aluminum, copper, and titanium. Further, even when the number of bathtubs and flow paths is further increased, the same effect can be obtained by applying the present invention to each closed circuit.
【００２１】[0021]
【発明の効果】本発明の方法を採用することによって、 電磁誘導による加熱だけでなく、攪拌力が付加される
ため、温度あるいは溶融金属の均質化を短時間に行うこ
とができる。 特に投入電力を増やすことなく、均温化・均質化がで
きるので、電源装置の電源容量の増大や、電力増大に伴
う誘導コイルの温度上昇、誘導コイルにかかる電磁力が
回避でき、特に誘導電磁装置の構造強度を高くする必要
がない。 エネルギー消費に変化がないため生産コストの上昇が
ない。 投入電力を増やさずに済むため周辺装置の電磁部品類
への電磁的障害が助長されることがない。 攪拌力によって、１箇所の浴槽に合金粉末を投与する
だけで溶融金属の成分調整が短時間に行うことができ
る。 などの効果が期待でき、溶融金属を加熱しながら、効率
よく攪拌を行うことができる。According to the method of the present invention, not only heating by electromagnetic induction but also a stirring force is added, so that temperature or molten metal can be homogenized in a short time. In particular, since temperature equalization and homogenization can be performed without increasing input power, it is possible to avoid an increase in the power supply capacity of the power supply device, a rise in the temperature of the induction coil due to an increase in power, and an electromagnetic force applied to the induction coil. There is no need to increase the structural strength of the device. There is no increase in production costs because there is no change in energy consumption. Since it is not necessary to increase the input power, electromagnetic interference to electromagnetic components of peripheral devices is not promoted. The composition of the molten metal can be adjusted in a short time only by applying the alloy powder to one bathtub by the stirring force. Such effects can be expected, and efficient stirring can be performed while heating the molten metal.
【図１】本発明の第１および第２の実施例を示す溶融金
属の保持容器の平面図である。FIG. 1 is a plan view of a holding container for molten metal showing a first and a second embodiment of the present invention.
【図２】本発明の第１の実施例を示す溶融金属の保持容
器の側面図である。FIG. 2 is a side view of a molten metal holding container according to the first embodiment of the present invention.
【図３】本発明の第２の実施例を示す溶融金属の保持容
器の側面図である。FIG. 3 is a side view of a molten metal holding container showing a second embodiment of the present invention.
【図４】本発明の第２の実施例を示す溶融金属の保持容
器の立体図である。FIG. 4 is a three-dimensional view of a molten metal holding container according to a second embodiment of the present invention.
１ 流路 ２ 浴槽 ３ 溶融金属 ４ 鉄心 ５ コイル ６ 電流 ７ 耐火物製の容器本体 ８ 磁場（鉄心内） ９ 誘導電流 １０ 流入口 １１ 流出口 １２ ローレンツ力 REFERENCE SIGNS LIST 1 flow path 2 bath tub 3 molten metal 4 iron core 5 coil 6 electric current 7 container body made of refractory material 8 magnetic field (inside iron core) 9 induced current 10 inflow 11 outflow 12 Lorentz force
フロントページの続き (56)参考文献 特開 平７−236952（ＪＰ，Ａ) 特開 平７−236951（ＪＰ，Ａ) 特開 平６−277811（ＪＰ，Ａ) 特開 平４−251636（ＪＰ，Ａ) 特開 平４−224060（ＪＰ，Ａ) 特開 平４−172155（ＪＰ，Ａ) 特開 昭61−38757（ＪＰ，Ａ) 特開 昭61−38755（ＪＰ，Ａ) 特開 昭61−38752（ＪＰ，Ａ) 実開 平６−86849（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B22D 41/01 B22D 11/10 310 F27B 14/06 F27D 11/06 H05B 6/10 311 Continuation of the front page (56) References JP-A-7-236952 (JP, A) JP-A-7-236951 (JP, A) JP-A-6-277811 (JP, A) JP-A-4-251636 (JP) JP-A-4-224060 (JP, A) JP-A-4-172155 (JP, A) JP-A-61-187557 (JP, A) JP-A-61-38755 (JP, A) 61-38752 (JP, A) Japanese Utility Model Hei 6-86849 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B22D 41/01 B22D 11/10 310 F27B 14/06 F27D 11 / 06 H05B 6/10 311
Claims (3)
を蓄える２つの浴槽と、浴槽間を連結する２つの平面的
に並列した流路と、前記浴槽と前記流路を連ねて形成さ
れる１つの閉路に鎖交する交流電磁石とを有する溶融金
属誘導加熱装置において、 前記流路の少なくとも一方の水平面にテーパー角を設け
たことを特徴とする溶融金属誘導加熱装置用保持容器。1. A bathtub provided in a refractory container body for storing molten metal, two planarly parallel flow paths connecting between the bathtubs, and the bathtub and the flow path formed in series. A holding container for a molten metal induction heating device, comprising: a molten metal induction heating device having an AC electromagnet linked to one closed circuit, wherein at least one horizontal surface of the flow path has a taper angle.
面内に、かつ、両テーパー部が互いに平行に施されてい
る請求項１記載の保持容器。2. The holding container according to claim 1, wherein each of the two flow paths has a taper angle in a horizontal plane and both tapered portions are parallel to each other.
面内に、かつ、両テーパー部が互いに平行に施され、前
記各流路と浴槽との２つの接合面のうち、小さな接合面
から大きな接合面に向かって仰角が設けられていること
を特徴とする請求項１記載の溶融金属誘導加熱装置用保
持容器。3. A taper angle is formed in each of two flow paths in a horizontal plane, and both taper portions are formed in parallel with each other. The holding container for a molten metal induction heating device according to claim 1 , wherein an elevation angle is provided toward the joining surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07101066A JP3110281B2 (en) | 1994-12-05 | 1995-04-25 | Holding container for molten metal induction heating device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-300670 | 1994-12-05 | ||
| JP30067094 | 1994-12-05 | ||
| JP07101066A JP3110281B2 (en) | 1994-12-05 | 1995-04-25 | Holding container for molten metal induction heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08206818A JPH08206818A (en) | 1996-08-13 |
| JP3110281B2 true JP3110281B2 (en) | 2000-11-20 |
Family
ID=26441991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07101066A Expired - Fee Related JP3110281B2 (en) | 1994-12-05 | 1995-04-25 | Holding container for molten metal induction heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3110281B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200497332Y1 (en) * | 2021-05-25 | 2023-10-12 | 팜트리개발 주식회사 | Scrap clip for golf ball |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2971793B1 (en) * | 2011-02-18 | 2017-12-22 | Alcan Rhenalu | IMPROVED MICROPOROSITY ALUMINUM ALLOY SEMI-PRODUCT AND METHOD OF MANUFACTURING THE SAME |
-
1995
- 1995-04-25 JP JP07101066A patent/JP3110281B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200497332Y1 (en) * | 2021-05-25 | 2023-10-12 | 팜트리개발 주식회사 | Scrap clip for golf ball |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08206818A (en) | 1996-08-13 |
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