JP3348836B2 - Continuous casting equipment for semi-solid metal - Google Patents
Continuous casting equipment for semi-solid metalInfo
- Publication number
- JP3348836B2 JP3348836B2 JP36369698A JP36369698A JP3348836B2 JP 3348836 B2 JP3348836 B2 JP 3348836B2 JP 36369698 A JP36369698 A JP 36369698A JP 36369698 A JP36369698 A JP 36369698A JP 3348836 B2 JP3348836 B2 JP 3348836B2
- Authority
- JP
- Japan
- Prior art keywords
- semi
- cooling
- solid metal
- continuous casting
- injection 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.)
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Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は、溶融金属を冷却・
攪拌して、半凝固金属を連続的に製造し、その半凝固金
属を連続的に鋳造する半凝固金属の連続鋳造装置に関す
る。The present invention relates to a method for cooling molten metal.
The present invention relates to a semi-solid metal continuous casting apparatus for continuously producing semi-solid metal by stirring and continuously casting the semi-solid metal.
【０００２】[0002]
【従来の技術】溶融金属( 溶湯) を冷却下に攪拌するこ
とによって、粒状の初晶粒を含む半凝固金属を連続的に
製造し、その半凝固金属を連続的に鋳造することが行わ
れている。その方法の一つとして、電磁攪拌による半凝
固金属の連続鋳造方法が知られている。この方法は、冷
却・攪拌槽の外周に配置された電磁誘導コイルの発生す
る回転磁界により、溶融金属に回転攪拌力を与え、冷却
・攪拌槽内で冷却・攪拌して半凝固金属を連続的に製造
し、その半凝固金属を、冷却・攪拌槽の排出部に設けた
注入ノズルから、連続鋳造鋳型( 以後、鋳型と呼ぶ。)
等に注入し鋳造するものである。2. Description of the Related Art A semi-solid metal containing granular primary crystals is continuously produced by stirring a molten metal (molten metal) under cooling, and the semi-solid metal is continuously cast. ing. As one of the methods, a continuous casting method of semi-solid metal by electromagnetic stirring is known. In this method, a rotating magnetic field generated by an electromagnetic induction coil arranged on the outer periphery of the cooling / stirring tank applies a rotating stirring force to the molten metal, and cools and stirs in the cooling / stirring tank to continuously convert the semi-solid metal. And the semi-solid metal is continuously cast into a continuous casting mold (hereinafter, referred to as a mold) from an injection nozzle provided at a discharge part of a cooling / stirring tank.
Etc. and cast.
【０００３】ところが、半凝固金属の固相率( 半凝固金
属中に含まれる初晶粒の重量比) が高くなると、半凝固
金属の粘度が上昇するので、半凝固金属を連続鋳造装置
の注入ノズルから鋳型に注入できず、連続鋳造できなく
なるという問題があった。また、半凝固金属は、凝固潜
熱をある程度放出し、過熱度が全くないために、注入ノ
ズルで凝固シェルが成長し、鋳片の引き抜きが困難とな
る問題もあった。However, when the solid phase ratio of semi-solid metal (the weight ratio of primary crystal grains contained in the semi-solid metal) increases, the viscosity of the semi-solid metal increases. There has been a problem that the casting cannot be performed from the nozzle to the casting mold and continuous casting cannot be performed. In addition, since semi-solid metal releases latent heat of solidification to some extent and has no degree of superheating, there is also a problem that a solidified shell grows at an injection nozzle, making it difficult to extract a slab.
【０００４】そこで、例えば、特開平４-28461号公報に
は、半凝固金属を連続的に製造する装置と鋳型とを、注
入ノズルを介して直結した、電磁攪拌方式による半凝固
金属の連続鋳造装置が開示されている。この注入ノズル
は、セラミック製とし、注入ノズルの外周に誘導加熱コ
イルを配置して、高温に保持することによって、内部を
通過する金属の凝結を防止している。For example, Japanese Patent Application Laid-Open No. 4-28461 discloses a continuous casting of semi-solid metal by an electromagnetic stirring method in which an apparatus for continuously producing semi-solid metal and a mold are directly connected via an injection nozzle. An apparatus is disclosed. The injection nozzle is made of ceramic, and an induction heating coil is arranged on the outer periphery of the injection nozzle to maintain the temperature at a high temperature, thereby preventing the metal passing therethrough from condensing.
【０００５】また、特開平６-328199 号公報には、電磁
攪拌方式による半凝固金属の排出促進を目的として、内
壁面にねじ溝をそなえた冷却・攪拌槽および外表面にね
じ溝をそなえる中子を用いる連続的半凝固金属の製造方
法が開示されている。Japanese Patent Application Laid-Open No. 6-328199 discloses a cooling / stirring tank having a thread groove on the inner wall surface and a thread groove on the outer surface for the purpose of promoting the discharge of semi-solid metal by an electromagnetic stirring method. A method for producing a continuous semi-solid metal using a bar is disclosed.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、特開平
６-328199 号公報に開示されている連続的半凝固金属の
製造方法では、ねじ溝を冷却・攪拌槽に施さなければ、
高固相率の半凝固金属を排出することができないという
問題があった。ねじ溝を施した冷却・攪拌槽を用いる
と、ねじ溝を施さない冷却・攪拌槽に比べて、ねじ山部
の厚みが厚くなるために冷却能力が低下し、半凝固金属
の初晶粒が大きくなるという問題や、冷却・攪拌槽のね
じ溝に、凝固シェルが凝着し易いという問題が生じるの
である。However, in the method for producing a continuous semi-solid metal disclosed in Japanese Patent Application Laid-Open No. 6-328199, unless the thread groove is formed in the cooling / stirring tank,
There is a problem that a semi-solid metal having a high solid fraction cannot be discharged. When a cooling / stirring tank with a thread groove is used, compared to a cooling / stirring tank without a screw groove, the cooling capacity is reduced due to the thicker thread part, and the primary crystal grains of the semi-solid metal are reduced. This causes a problem that the solidification shell easily adheres to the screw groove of the cooling / stirring tank.
【０００７】また、特開平４-28461号公報に開示されて
いる注入ノズルは、誘導加熱コイルの電力を変化させて
から、注入ノズルの内表面の温度が変化するまでの時間
遅れが大きかった。このため注入ノズルで凝固シェルが
成長し、鋳片の表面欠陥となることがあった。そこで、
本発明の目的は、上記の従来技術の問題点を解消するこ
とにあり、冷却・攪拌槽にねじ溝を施さない、高固相率
の半凝固金属を連続的に鋳造することができる、半凝固
金属の連続鋳造装置を提供することにある。In addition, the injection nozzle disclosed in Japanese Patent Application Laid-Open No. 4-28461 has a large time delay from changing the electric power of the induction heating coil to changing the temperature of the inner surface of the injection nozzle. For this reason, a solidified shell grows at the injection nozzle, which sometimes causes a surface defect of the slab. Therefore,
An object of the present invention is to solve the above-mentioned problems of the prior art, and does not provide a thread groove in a cooling / stirring tank, and can continuously cast a semi-solid metal having a high solid phase ratio. An object of the present invention is to provide an apparatus for continuously casting solidified metal.
【０００８】[0008]
【課題を解決するための手段】すなわち、本発明は、溶
融金属を冷却下に攪拌して得られる半凝固金属を、注入
ノズルを介して連続鋳造鋳型で鋳造する半凝固金属の連
続鋳造装置であって、内壁面にねじ溝を施さない冷却円
筒および水冷ジャケットからなる冷却・攪拌槽と、前記
冷却・攪拌槽の外周に配置された電磁誘導コイルと、駆
動手段に連結された、外表面にネジ溝を有する中子と、
前記冷却・攪拌槽の排出部に注入ノズルを介して直結し
た連続鋳造鋳型と、前記連続鋳造鋳型から鋳片を引き抜
くピンチロールとを備えたことを特徴とする半凝固金属
の連続鋳造装置である。That is, the present invention relates to a semi-solid metal continuous casting apparatus for casting a semi-solid metal obtained by stirring a molten metal under cooling with a continuous casting mold through an injection nozzle. There is a cooling / stirring tank composed of a cooling cylinder and a water-cooling jacket having no thread groove on the inner wall surface, an electromagnetic induction coil arranged on the outer periphery of the cooling / stirring tank, and an outer surface connected to driving means. A core having a thread groove,
A continuous casting apparatus for semi-solid metal, comprising: a continuous casting mold directly connected to an outlet of the cooling / stirring tank via an injection nozzle; and a pinch roll for extracting a slab from the continuous casting mold. .
【０００９】また、前記注入ノズルを、抵抗加熱ヒータ
ーを備えた金属製としたことを特徴とする半凝固金属の
連続鋳造装置である。[0009] Further, in the continuous casting apparatus for semi-solid metal, the injection nozzle is made of metal provided with a resistance heater.
【００１０】[0010]
【発明の実施の形態】本発明の半凝固金属の連続鋳造装
置について、図１を用いて詳細に説明する。図１におい
て、冷却・攪拌槽は、内壁面にねじ溝を施さない、非磁
性金属製の冷却円筒２と、冷却円筒用水冷ジャケット３
とからなる。冷却・攪拌槽の外周には電磁誘導コイル４
が配置されている。そして、冷却水3cを給水管3aから通
水し、冷却円筒２の外周を強制冷却して、上部の排水管
3bから排水するとともに、電磁誘導コイル４に交流電源
17を印加し、その回転磁界によって冷却・攪拌槽内の溶
湯1aと半凝固金属1bに、回転攪拌力を与えるようにされ
ている。DESCRIPTION OF THE PREFERRED EMBODIMENTS A continuous casting apparatus for semi-solid metal according to the present invention will be described in detail with reference to FIG. In FIG. 1, a cooling / stirring tank has a cooling cylinder 2 made of a non-magnetic metal and a water-cooling jacket 3 for a cooling cylinder without a thread groove on an inner wall surface.
Consists of An electromagnetic induction coil 4 is provided around the outer periphery of the cooling / stirring tank.
Is arranged. Then, cooling water 3c is passed through the water supply pipe 3a, and the outer periphery of the cooling cylinder 2 is forcibly cooled.
Drain from 3b and supply AC power to electromagnetic induction coil 4
17 is applied, and a rotating stirring force is applied to the molten metal 1a and the semi-solidified metal 1b in the cooling / stirring tank by the rotating magnetic field.
【００１１】外表面にネジ溝を刻設した中子５は、支持
アーム14に軸受を介して回転可能に支持され、かつトル
ク計13を備えた駆動モーター12により、駆動軸を介して
駆動可能とされている。また、支持アーム14は、油圧シ
リンダー16等の昇降装置により昇降できるように、また
回動可能なように、支持台15に装着されている。冷却・
攪拌槽の排出部には、注入ノズル６を介して鋳型７が直
結されている。注入ノズル６は、高粘度の半凝固金属1b
の流動に支障のない十分な断面積を有し、セラミックの
熱伝導率よりも高い熱伝導率を有する金属製とされ、か
つ抵抗加熱ヒータ９を内蔵している。また、鋳型７は、
所定の断面形状を有する純銅、銅合金、アルミニウム、
アルミニウム合金等の金属又は黒鉛、セラミックス等の
開放鋳型７であって、鋳型用水冷ジャケット８を備えて
おり、冷却水8cを給水管8aから注水し、鋳型７の外面を
強制冷却して、排水管8bから排水するようにされてい
る。そして、鋳型７内の半凝固金属1bを冷却・凝固して
鋳片1cを形成し、鋳片1cをガイドロール10で案内して、
鋳片1cをピンチロール11により連続的に引き抜くように
されている。The core 5 having a thread groove formed on the outer surface thereof is rotatably supported by a support arm 14 through a bearing, and can be driven by a drive motor 12 having a torque meter 13 through a drive shaft. It has been. Further, the support arm 14 is mounted on a support base 15 so as to be able to move up and down by an elevating device such as a hydraulic cylinder 16 and to be rotatable. cooling·
The mold 7 is directly connected to the discharge part of the stirring tank via the injection nozzle 6. The injection nozzle 6 is made of a high-viscosity semi-solid metal 1b.
It is made of metal having a sufficient cross-sectional area that does not hinder the flow of heat, has a higher thermal conductivity than that of ceramic, and has a built-in resistance heater 9. Also, the mold 7
Pure copper, copper alloy, aluminum, having a predetermined cross-sectional shape
An open mold 7 made of metal such as aluminum alloy or graphite, ceramics, etc., provided with a mold water-cooling jacket 8, injecting cooling water 8c from a water supply pipe 8a, forcibly cooling the outer surface of the mold 7, and draining water. The water is drained from the pipe 8b. Then, the semi-solid metal 1b in the mold 7 is cooled and solidified to form a slab 1c, and the slab 1c is guided by a guide roll 10,
The slab 1c is continuously pulled out by the pinch roll 11.
【００１２】次に、この装置により半凝固金属を連続鋳
造する方法について説明する。先ず、溶湯1aをタンディ
ッシュ１に連続的に供給して、溶湯1aを連続的に冷却・
攪拌槽の上部に注入する。冷却・攪拌槽の上部に注入さ
れた溶湯1aは、冷却円筒２の内壁面と中子５の外表面と
の隙間で、電磁誘導コイル４により発生する回転磁界に
より回転攪拌されつつ、冷却円筒２の内壁面に接触し冷
却されて、半凝固金属1bとなる。Next, a method of continuously casting semi-solid metal by using this apparatus will be described. First, the molten metal 1a is continuously supplied to the tundish 1, and the molten metal 1a is continuously cooled.
Pour into the top of the stirring tank. The molten metal 1a injected into the upper part of the cooling / stirring tank is rotated and stirred by the rotating magnetic field generated by the electromagnetic induction coil 4 in the gap between the inner wall surface of the cooling cylinder 2 and the outer surface of the core 5, and It is cooled by contacting the inner wall surface of the metal, and becomes a semi-solid metal 1b.
【００１３】ここで、本発明の装置では、冷却円筒２の
内壁面には、ねじ溝を施していないけれども、中子５の
外表面にはねじ溝が施されているので、回転磁界の回転
方向とねじ溝の方向を適当に選択することにより、溶湯
1aと半凝固金属1bには、ねじ溝に沿ってスパイラル状の
流動が生ずる。さらに、回転磁界によって生じたスパイ
ラル状の流動と同じ方向に、中子５を、駆動手段12によ
り所定回転速度で回転させて、回転磁界によって発生し
た流動を、加速させることができる。この結果、半凝固
金属1bには、中子５を回転させない場合よりも大きな下
向きの推力が働くこととなり、高固相率の場合でも、冷
却・攪拌槽の排出部に連結された注入ノズル６を介し
て、半凝固金属1bを鋳型７に注入できるのである。ま
た、本発明の装置では、駆動手段12の回転速度により、
半凝固金属1bの固相率に応じた、適切な下向きの推力を
作用させることができる。Here, in the apparatus of the present invention, the inner wall surface of the cooling cylinder 2 is not threaded, but the outer surface of the core 5 is threaded. By properly selecting the direction and thread groove direction,
Spiral flow occurs along the thread groove in 1a and semi-solid metal 1b. Further, the core 5 is rotated at a predetermined rotational speed by the driving means 12 in the same direction as the spiral flow generated by the rotating magnetic field, so that the flow generated by the rotating magnetic field can be accelerated. As a result, a larger downward thrust acts on the semi-solidified metal 1b than when the core 5 is not rotated, and the injection nozzle 6 connected to the discharge part of the cooling / stirring tank even at a high solid phase ratio. , The semi-solid metal 1b can be injected into the mold 7. Further, in the device of the present invention, the rotation speed of the driving means 12
An appropriate downward thrust can be applied according to the solid phase ratio of the semi-solid metal 1b.
【００１４】また、本発明の装置の注入ノズル６は、セ
ラミックの熱伝導率よりも高い熱伝導率を有する金属製
でかつ抵抗加熱ヒータ９を内蔵しているので、注入ノズ
ル６の内壁面を所定温度に早く加熱できる。このため、
注入ノズル６の内壁面の温度が低下したときに、交流電
源18からの電力を所定量増大すると、注入ノズル６の内
壁面の温度が、所定温度に早く到達する。この結果、凝
固シェルが注入ノズル６の内壁面で成長するのを防止で
きるのである。Further, since the injection nozzle 6 of the apparatus of the present invention is made of metal having a thermal conductivity higher than that of ceramic and has a built-in resistance heater 9, the inner wall surface of the injection nozzle 6 is formed. It can be quickly heated to a predetermined temperature. For this reason,
When the power from the AC power supply 18 is increased by a predetermined amount when the temperature of the inner wall surface of the injection nozzle 6 decreases, the temperature of the inner wall surface of the injection nozzle 6 reaches the predetermined temperature earlier. As a result, it is possible to prevent the solidified shell from growing on the inner wall surface of the injection nozzle 6.
【００１５】ところで、図１に示した注入ノズル６は、
下方に向かい開口部の断面積が減少するようにされてい
るが、本発明の装置はこれに限定されず、下方に向かい
開口部の断面積を増大してよい。また、注入ノズル６の
開口部の断面積を、上部と下部で同じにしてもよい。ま
た、本発明の半凝固金属の連続鋳造装置では、ピンチロ
ールによる鋳片の引き抜き速度を遅くすることにより、
注入ノズル内の半凝固金属1bの固相率を高くできる。By the way, the injection nozzle 6 shown in FIG.
While the cross-sectional area of the downwardly-facing opening is reduced, the device of the present invention is not limited to this, and may increase the cross-sectional area of the downwardly-facing opening. Further, the cross-sectional area of the opening of the injection nozzle 6 may be the same in the upper part and the lower part. In the continuous casting apparatus for semi-solid metal of the present invention, by reducing the speed of drawing the slab by pinch roll,
The solid fraction of the semi-solid metal 1b in the injection nozzle can be increased.
【００１６】また、トルク計13で中子５に作用するトル
クを検出できるので、これから固相率等の操業状況をチ
ェックすることができる。また、本発明の装置で鋳造で
きる合金は、Al合金、Cu合金、Fe合金等各種合金に適用
できる。Further, since the torque acting on the core 5 can be detected by the torque meter 13, it is possible to check the operation status such as the solid phase ratio. Further, alloys that can be cast by the apparatus of the present invention can be applied to various alloys such as Al alloys, Cu alloys, and Fe alloys.
【００１７】[0017]
【実施例】図１に示した本発明の装置を使用し、適正温
度に加熱したAl-10mass ％Cu合金の溶湯1aをタンディッ
シュ１に連続的に供給して、冷却・攪拌槽の上部に溶湯
1aを流入させる。冷却円筒２は内径:200mmで、内壁面に
はねじ溝を施していない。また、中子５は、外径:100mm
の円柱に、深さ:30mm 、幅:50mm 、ピッチ:80mm のねじ
溝を設けたものを用いた。中子５の回転数は、回転磁界
の回転数よりも大きくして、半凝固金属1bに下向きの推
力を付与した。注入ノズル６は、オーステナイト系ステ
ンレス鋼製とし、抵抗加熱ヒータ９を内蔵させた。鋳型
７は断面サイズ:150mmφとし、ピンチロール11で引き抜
き速度:600mm／分で引き抜いて、ビレット鋳片1cを連続
鋳造した。その際に鋳造の途中で、注入ノズル６の温度
が低下したので、抵抗加熱ヒータ９に供給する電力を増
大したところ、鋳片の表面品質に問題なく引き抜きが継
続できた。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Using the apparatus of the present invention shown in FIG. 1, a molten metal 1a of an Al-10 mass% Cu alloy heated to an appropriate temperature is continuously supplied to a tundish 1, and is placed above a cooling / stirring tank. Molten metal
Let 1a flow in. The cooling cylinder 2 has an inner diameter of 200 mm and has no thread groove on the inner wall surface. The core 5 has an outer diameter of 100 mm.
A column provided with a thread groove having a depth of 30 mm, a width of 50 mm and a pitch of 80 mm was used. The rotation speed of the core 5 was set to be higher than the rotation speed of the rotating magnetic field to apply a downward thrust to the semi-solid metal 1b. The injection nozzle 6 was made of austenitic stainless steel and contained a resistance heater 9. The mold 7 had a cross-sectional size of 150 mmφ, was pulled out with a pinch roll 11 at a drawing speed of 600 mm / min, and a billet cast 1c was continuously cast. At that time, the temperature of the injection nozzle 6 was lowered during the casting, so that the power supplied to the resistance heater 9 was increased, so that the drawing could be continued without any problem in the surface quality of the slab.
【００１８】ここで、半凝固金属1bの固相率は、注入ノ
ズル上部の注入ノズル内における半凝固金属の比抵抗の
変化を測定することにより、 0.45 になるように引き抜
き速度を600mm ／分にして調整した。電磁誘導コイル４
は２極３相で、これに50Hz３相の交流電源17から電力を
供給して、回転磁界を発生させ、冷却円筒２の内壁面で
の磁束密度:900ガウスを印加した。冷却円筒用水冷ジャ
ケット３には冷却水3cを流量:500リットル／分、鋳型７
には冷却水8cを流量:500リットル／分供給して、それぞ
れ冷却円筒２の外面、鋳型７の外面を冷却した。Here, by measuring the change in the specific resistance of the semi-solid metal in the injection nozzle above the injection nozzle, the solidification rate of the semi-solid metal 1b was set to 0.45 and the drawing speed was set to 600 mm / min. Adjusted. Electromagnetic induction coil 4
Is a two-pole three-phase power supply from a 50 Hz three-phase AC power supply 17 to generate a rotating magnetic field and apply a magnetic flux density of 900 gauss on the inner wall surface of the cooling cylinder 2. The cooling water 3c is supplied to the cooling water jacket 3 for the cooling cylinder at a flow rate of 500 liters / min.
The cooling water 8c was supplied at a flow rate of 500 liters / minute to cool the outer surface of the cooling cylinder 2 and the outer surface of the mold 7, respectively.
【００１９】一方、比較例として、中子５を回転せず
に、注入ノズル６は、注入ノズル６の外周に誘導加熱コ
イルを配置したセラミック製とし、その他の条件は同じ
として、注入ノズル上部の注入ノズル内における半凝固
金属の固相率を0.40になるように、600mm ／分を超える
引き抜き速度で引き抜いた。その際に鋳造の途中で、注
入ノズル６の温度が低下したので、誘導加熱コイルに供
給する電力を増大した。その後、固相率を0.45まで上昇
しようと引き抜き速度を遅くしたところ、鋳片が破断し
てしまった。これは、半凝固金属1bが注入ノズル６から
排出できなかったことによる。また、固相率0.40の条件
で鋳造された鋳片を調査したところ、注入ノズルに凝着
していた凝固シェルが、鋳片の表面に巻き込まれて欠陥
となっていた。On the other hand, as a comparative example, the injection nozzle 6 is made of a ceramic in which an induction heating coil is arranged on the outer periphery of the injection nozzle 6 without rotating the core 5, and other conditions are the same. The semi-solid metal in the injection nozzle was drawn at a drawing speed exceeding 600 mm / min so that the solid fraction was 0.40. At that time, the temperature of the injection nozzle 6 was lowered during the casting, so that the power supplied to the induction heating coil was increased. Then, when the drawing speed was reduced to increase the solid fraction to 0.45, the slab broke. This is because the semi-solid metal 1b could not be discharged from the injection nozzle 6. In addition, when a slab cast under the condition of the solid phase ratio of 0.40 was examined, the solidified shell adhered to the injection nozzle was caught on the surface of the slab and became a defect.
【００２０】以上の結果から、本発明の装置によれば、
高固相率の鋳片が連続鋳造製造できることがわかる。ま
た、本発明の装置の注入ノズル６は、凝固シェルが凝着
するのを防止できた。From the above results, according to the apparatus of the present invention,
It can be seen that a slab with a high solid phase ratio can be manufactured by continuous casting. Further, the injection nozzle 6 of the apparatus of the present invention was able to prevent the solidified shell from sticking.
【００２１】[0021]
【発明の効果】本発明の半凝固金属の連続鋳造装置は、
冷却・攪拌槽の冷却円筒にねじ溝を設けずに、高固相率
の半凝固金属を連続鋳造できる。また、本発明の装置の
注入ノズルは、凝固シェルが凝着することがない。さら
に、本発明の装置で製造した高固相率の鋳片は、半凝固
ダイカスト等のチクソ加工において、その良好な流動性
を大いに活用できる。The continuous casting apparatus for semi-solid metal according to the present invention comprises:
A semi-solid metal having a high solid fraction can be continuously cast without providing a thread groove in the cooling cylinder of the cooling / stirring tank. Further, the injection nozzle of the apparatus of the present invention does not cause the solidified shell to adhere. Furthermore, the slab having a high solid fraction produced by the apparatus of the present invention can greatly utilize its good fluidity in thixo-processing such as semi-solid die casting.
【図１】本発明の半凝固金属の連続鋳造装置を示す概略
図である。FIG. 1 is a schematic view showing a continuous casting apparatus for semi-solid metal of the present invention.
１ タンディッシュ ２ 冷却円筒 ３ 冷却円筒用水冷ジャケット ４ 電磁誘導コイル ５ 中子 ６ 注入ノズル ７ 連続鋳造鋳型（鋳型） ８ 鋳型用水冷ジャケット ９ 抵抗加熱ヒーター 10 ガイドロール 11 ピンチロール 12 駆動手段( 駆動モーター） 13 トルク計 14 支持アーム 15 支持台 16 油圧シリンダー 17、18 交流電源 1a 溶融金属( 溶湯) 1b 半凝固金属 1c 鋳片 3a、8a 給水管 3b、8b 排水管 3c、3c 冷却水 DESCRIPTION OF SYMBOLS 1 Tundish 2 Cooling cylinder 3 Water cooling jacket for cooling cylinder 4 Electromagnetic induction coil 5 Core 6 Injection nozzle 7 Continuous casting mold (mold) 8 Water cooling jacket for mold 9 Resistance heater 10 Guide roll 11 Pinch roll 12 Drive means (Drive motor 13) Torque meter 14 Support arm 15 Support base 16 Hydraulic cylinder 17, 18 AC power supply 1a Molten metal (molten metal) 1b Semi-solid metal 1c Slab 3a, 8a Water supply pipe 3b, 8b Drain pipe 3c, 3c Cooling water
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−328199（ＪＰ，Ａ) 特開 平７−124703（ＪＰ，Ａ) 特開 平４−28461（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B22D 11/00 B22D 11/10 B22D 11/114 B22D 11/115 B22D 1/00 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-328199 (JP, A) JP-A-7-124703 (JP, A) JP-A-4-28461 (JP, A) (58) Field (Int.Cl. 7 , DB name) B22D 11/00 B22D 11/10 B22D 11/114 B22D 11/115 B22D 1/00
Claims (2)
凝固金属を、注入ノズルを介して連続鋳造鋳型で鋳造す
る半凝固金属の連続鋳造装置であって、内壁面にねじ溝
を施さない冷却円筒および水冷ジャケットからなる冷却
・攪拌槽と、前記冷却・攪拌槽の外周に配置された電磁
誘導コイルと、駆動手段に連結された、外表面にネジ溝
を有する中子と、前記冷却・攪拌槽の排出部に注入ノズ
ルを介して直結した連続鋳造鋳型と、前記連続鋳造鋳型
から鋳片を引き抜くピンチロールとを備えたことを特徴
とする半凝固金属の連続鋳造装置。An apparatus for continuously casting semi-solid metal obtained by stirring a molten metal under cooling with a continuous casting mold through an injection nozzle, wherein an inner wall surface is provided with a thread groove. A cooling / stirring tank comprising a cooling cylinder and a water-cooling jacket, an electromagnetic induction coil disposed on the outer periphery of the cooling / stirring tank, a core having a thread groove on an outer surface connected to a driving means, and A continuous casting apparatus for semi-solid metal, comprising: a continuous casting mold directly connected to a discharge portion of the stirring tank via an injection nozzle; and a pinch roll for extracting a slab from the continuous casting mold.
備えた金属製としたことを特徴とする請求項１に記載の
半凝固金属の連続鋳造装置。2. The continuous casting apparatus for semi-solid metal according to claim 1, wherein the injection nozzle is made of metal provided with a resistance heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36369698A JP3348836B2 (en) | 1998-12-22 | 1998-12-22 | Continuous casting equipment for semi-solid metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36369698A JP3348836B2 (en) | 1998-12-22 | 1998-12-22 | Continuous casting equipment for semi-solid metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000190051A JP2000190051A (en) | 2000-07-11 |
| JP3348836B2 true JP3348836B2 (en) | 2002-11-20 |
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ID=18479965
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36369698A Expired - Fee Related JP3348836B2 (en) | 1998-12-22 | 1998-12-22 | Continuous casting equipment for semi-solid metal |
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| Country | Link |
|---|---|
| JP (1) | JP3348836B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2459509B (en) | 2008-04-25 | 2011-05-11 | Goodwin Plc | An apparatus for casting and a method of casting |
| WO2010000209A1 (en) * | 2008-07-04 | 2010-01-07 | 北京有色金属研究总院 | Method and apparatus for production of semi-solidified alloy slurry by electromagnetic stirring in annulus of tank |
| CN104722730B (en) * | 2013-12-20 | 2018-03-16 | 北京有色金属研究总院 | A kind of continuous apparatus and method for preparing large scale high-quality aluminum alloy ingot casting |
| CN104117644B (en) * | 2014-07-17 | 2016-06-29 | 江西理工大学 | A kind of metal strand apparatus for continuously production that compression casting is provided and method |
| CN106925735B (en) * | 2015-12-30 | 2019-06-18 | 北京有色金属研究总院 | A kind of device and method preparing big specification high-quality aluminium alloy cast ingot |
| CN106925730B (en) * | 2015-12-30 | 2019-06-18 | 北京有色金属研究总院 | A kind of preparation facilities and method of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN108672670A (en) * | 2018-06-05 | 2018-10-19 | 湖南城市学院 | A kind of metal strand apparatus for continuously production that compression casting is provided and method |
| CN109967716B (en) * | 2019-03-13 | 2020-11-06 | 西安交通大学 | Composite preparation process and equipment for semi-solid metal slurry |
| CN112705714B (en) * | 2020-12-18 | 2021-11-02 | 燕山大学 | Semi-solid slurry preparation and feeding device for surface repair integrated equipment |
-
1998
- 1998-12-22 JP JP36369698A patent/JP3348836B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| JP2000190051A (en) | 2000-07-11 |
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