JPH07112596B2 - Metal slurry manufacturing equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for producing a metal slurry used in a moving mold type continuous casting machine, a twin roll type continuous casting machine, or the like.

[Prior Art] Conventionally, an apparatus for producing a metal slurry used in a moving mold type continuous casting machine, a twin roll type continuous casting machine or the like has a cylinder for containing a molten metal 1 cooled to a solid-liquid coexisting temperature as shown in FIG. A stirring rod 3 which is rotated by a drive source (not shown) is rotated inside the container 2 to mechanically stir the molten metal 1 to destroy the dendrite form formed by cooling and to form a semi-solid metal slurry 4 A device for manufacturing and supplying various kinds of continuous casting machines and a cylindrical container 2 containing a melt 1 cooled to a solid-liquid coexistence temperature as shown in FIG. A phase induction motor stator 7 is provided, and the molten metal 1 is electromagnetically agitated by a rotating magnetic field generated by energizing the polyphase induction motor stator 7 to destroy the dendrite form to produce a metal slurry 4. Equipment supplied to the various continuous casting machines Was used.

[Problems to be Solved by the Invention] However, the viscosity of the metal slurry 4 produced in the cylindrical container 2 is high, and it takes time to carry out from the cylindrical container 2 only by carrying out by gravity, and the container outlet 9 There was a risk of solidification.

An object of the present invention is to solve the above problems and to provide an apparatus for producing a metal slurry that can carry out the metal slurry produced in a container and easily carry out the metal slurry.

[Means for Solving the Problems] In the present invention, a stirring rod for mechanically stirring the molten metal is rotatably provided inside a cylindrical container containing the molten metal cooled to a solid-liquid coexisting temperature, and A multi-phase induction motor stator that electromagnetically stirs the molten metal is attached to the outer periphery of the cylindrical container so as to be tiltable.

[Operation] Therefore, the molten metal cooled to the solid-liquid coexisting temperature is stirred with a stirring rod to crush the formed dendrite to produce a semi-solid metal slurry, and the tilted multi-phase induction motor stator is used to produce the metal slurry. Give an electromagnetic carrying output to.

[Examples] Examples of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 show an embodiment of the present invention. A stirring rod 3 which is rotated by a drive source (not shown) inside a cylindrical container 2 containing a melt 1 cooled to a solid-liquid coexistence temperature.
And the core 5 and the winding 6 on the outer circumference of the cylindrical container 2.
The multi-phase induction motor stator 7 consisting of is connected to the cylinder 8 and is tiltably arranged.

With the above-described structure, when manufacturing the metal slurry 4, the molten metal 1 cooled to the solid-liquid coexistence temperature is housed in the cylindrical container 2, and the stirring rod 3 rotated by a drive source (not shown) is rotated. Mechanically stir the molten metal 1 and horizontally support the stator 7 of the polyphase induction motor to energize it.
A rotating magnetic field is generated and the molten metal 1 is also stirred by a magnetic stirring force to produce the metal slurry 4.

When the metal slurry 4 is carried out, the cylinder 8 is reduced in size, the polyphase induction motor stator 7 is tilted, the polyphase induction motor stator 7 is energized to generate a tilted rotating magnetic field, and the cylindrical container 2 The metal slurry 4 therein is given an electromagnetic carrying force that tends to move to the container outlet 9.

The rotating magnetic field generated by this polyphase induction motor stator 7 will be described. When the polyphase induction motor stator 7 is in a horizontal position, the polyphase induction motor stator 7 is energized,
As shown in FIG. 2 (a), the magnetic flux vector B corresponds to the current J in the vertical direction according to Fleming's right-hand rule.
Is directed inward in the radial direction of the horizontal section a, the magnetic stirring vector F is directed in the tangential direction of the inner wall of the cylindrical container 2, and the molten metal 1 is rotated in the direction of arrow R.

Now, here, when the polyphase motor stator 4 is tilted by θ by reducing the cylinder 8, FIG.
Similarly, the magnetic flux vector B also faces the inside of the section a ′ inclined by θ, and the magnetic stirring vector F also faces the tangential direction of the inclined section a ′.

The downward vertical force component F sin θ of this magnetic stirring vector F is applied to the metal slurry 4 as a carrying output.

It should be noted that the present invention is not limited to the above-described embodiments, and it is possible to use mechanical stirring only and not electromagnetic stirring when manufacturing the metal slurry, and to tilt the polyphase induction motor stator. It is needless to say that a device other than a cylinder is used for this purpose, the shape and number of the stirring rods are changed, and various other changes can be made without departing from the scope of the present invention.

[Effects of the Invention] As described above, according to the apparatus for producing a metal slurry of the present invention, the molten metal is mechanically agitated by the agitation rod, and the carry output is given to the metal slurry by the multi-phase induction motor stator. The excellent metal slurry can be effectively supplied from the manufacturing apparatus to various continuous casting machines without delay.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention, and FIG. 2 (a).
(B) is an explanatory view of electromagnetic induction stirring and carrying output, and FIGS. 3 and 4 are explanatory views showing a conventional apparatus for producing a metal slurry. Reference numeral 1 is a molten metal, 2 is a cylindrical container, 3 is a stirring rod, 4 is metal slurry, and 7 is a multi-phase induction motor stator.

Claims (1)

[Claims] 1. A stirring rod for mechanically stirring the molten metal is rotatably provided inside a cylindrical container containing the molten metal cooled to a solid-liquid coexistence temperature, and the molten metal is electromagnetically provided on the outer periphery of the cylindrical container. An apparatus for producing a metal slurry, wherein a multi-phase induction motor stator for inductively stirring is attached to be tiltable.