JPS6015047A - Continuous casting device for thin plate - Google Patents

Abstract

PURPOSE:To eliminate the trouble occuring in the deformation of a stationary mold wall, sticking to a billet, generating of excessive sliding resistance, etc. with a continuous casting device for a thin plate using a rotary casting mold by pressing the non-cooled stationary casting mold to the outside circumferences in the projecting parts at both ends of the rotary casting mold. CONSTITUTION:The molten metal 2 poured into the molding space enclosed of the four sides, i.e., a cylindrical part 3a and projecting parts 3b of a rotary casting mold 3 and a stationary casting mold 5b is cooled and solidified by the above-mentioned walls then the molten metal is drawn out as a billet 1 by pinch rolls 6a, 7a. The mold 5b is not cooled and particularly in the stage of casting a material having a high solidifying point, heating elements 4f are embedded in a base 4e to heat positively the mold 5b to prevent solidification of the molten metal 2 from the side of said mold. then the billet 1 begins to grow from the mold 3 side and the growth arrives at the mold 5b wall in the area near the outlet of the mold 5b. The need for a mold belt is thus eliminated and the trouble occuring in the deformation of the stationary mold walls, sticking to the billet, generation of excessive sliding resistance, etc. is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a continuous casting apparatus for thin sheets of glass, plastics, metal parts, etc.

[Conventional thin plate continuous casting equipment]

The conventional thin plate continuous casting equipment is shown in Fig. 1 (plan view) and Fig. 2.
As shown in the figure (I-I line sectional view in FIG. 1), a mold space is formed with the cylindrical portion 3a of the rotary mold, the protruding portion 6b, and the G-shaped belt 5 as four sides. The walls forming the mold space poured into the mold space are moved as indicated by 3f and 5a by the drive device 9, thereby helping the slab 1 to move. The slab 1 has a pinch that pinches it.

Rotary casting! The cooling water to i6 is made to enter and exit through the hollow part 68, and one of the ear shafts 3C16d of the rotary mold 3 is connected to the drive device, and the drive pulley of the mold belt 5 is connected to the drive device. One of 4a, 4b, and 4c is KJ
The connection to the J device is broken.

(Disadvantages of the above conventional device) When using this conventional device to cast a wide slab such as a thin plate, abnormal deformation occurs in the belt portion that forms one side of the mold wall due to belt tension and thermal expansion, resulting in a predetermined cylindrical concave surface. It has the disadvantage that it is difficult to maintain, and also has the disadvantage that the belt has a short service life and maintenance costs are high.

[Object of the present invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a continuous thin plate casting apparatus that eliminates the drawbacks of the conventional apparatus described above. That is, the object of the present invention is to prevent harmful deformation of the mold wall even in continuous casting of wide + ie slabs such as thin plates, and to
Thin plate series AI11J that does not use short-lived parts such as belts
to provide manufacturing equipment.

[Sengeki of the present invention]

In order to achieve the above object, the present invention uses non-cooled fixed casting B1x in place of the mold belt in the conventional apparatus.

That is, the present invention provides a thin plate continuous casting apparatus using a rotary mold having protrusions on both edges, characterized in that an uncooled stationary mold is brought into contact with the outer periphery of the protrusions on both edges of the rotary mold. be.

In the present invention, the one-rotation mold is cylindrical, and both edges of the cylindrical part protrude at a constant height over the entire circumference, and are rotatably supported by the cylindrical shaft. There is. Also, whether the rotary mold is designed to cool the inside, or whether such a rotary mold is made of Ni
This is the same as the conventional thin plate continuous casting equipment marked J.

In the present invention, an uncooled fixed mold is brought into contact with the outer periphery of the protrusions on both sides of the rotary mold. It has a width t that can cover the two protrusions of the line at the same time,
The curvature of the partial cylindrical concave surface is the same as the outer peripheral curved surface of the protrusion on the inner edge of the rotary mold. In the present invention, the space surrounded by the partial cylindrical concave surface of the stationary mold, the cylindrical part of the rotary mold, and the protrusions on both edges of the rotary mold (the space surrounded by the four sides of the two sides) is defined as the mold space.

Furthermore, in the present invention, a fixed mold without cooling means that the fixed mold is not cooled.

In other words, in continuous casting using a fixed mold, troubles are likely to occur due to sticking of slabs to the fixed V8 mold or generation of excessive sliding resistance force, so in order to prevent this draffle, at least the fixed mold should not be cooled. It means something. Therefore, in a preferred embodiment of the present invention, a means for heating the fixed disease type itself, such as a heating element or a heating rod, is disposed in the fixed mold, and when casting a material with a high freezing point into bamboo, one mold is used. Preferably, the fixed disease type is heated.

The present invention has been described in detail above, and the present invention will be explained in more detail with reference to FIGS. 3 and 4. Fig. 5 is a half view of a thin plate continuous casting apparatus which is an embodiment of the present invention;
The figure is a sectional view taken along the line ■-■ in Figure 6. Rotary mold cylindrical part 6a
, the protruding portion 3b, and the fixed mold 5b form a mold space as four sides. The molten metal 2 injected into this mold space receives heat mainly from the rounded part 3a of the rotary mold 3 among the four sides forming the mold space, and solidifies while rotary casting. 1.6 and move in the direction of movement.

The fixed mold 5b is not cooled, and especially when casting a material with a high freezing point, a heating element 4f is embedded in the base 4e to actively heat it and prevent the molten metal 2 from forming a slab from the fixed mold 5bglll. do.

Therefore, the slab grows from the rotary mold 3i1411,
After reaching the fixed mold 5b, it contacts and slides thereon. Since its position is limited to the area near the exit of the constant chest mold 5b, no large resistance force is generated.

be drawn out.

[Effects of the present invention]

As detailed above, in the conventional method, in place of the endless belt that formed one side of the Ha wall, Ki @ Akira used a fixed piece M, which made it possible to completely strengthen the mold wall on that side. The effect is produced. In addition, in continuous casting using a fixed mold, there is a risk that problems may occur due to sticking of the fixed mold and slab or excessive sliding #I resistance force, but in the present invention, the fixed mold is not cooled or heated. By doing so,
It is possible to prevent the generation of slabs from the fixed part mlI411, and to set the sliding length between the stationary mold and the slab within M5, thereby preventing the occurrence of the above-mentioned troubles.

Furthermore, since the present invention does not use short-lived parts such as the endless belt used in conventional devices, it also has the effect of reducing costs.

[Brief explanation of the drawings] Figure 1 is a plan view of the conventional Ko & Ritsu dripping device;
The figure is a curve diagram of the line 1-I in FIG. Figure 6 is a plan view of a thin plate continuous casting machine which is an example of the Honakari.
Diagram/). 1: Slab 4a, 4b, 4c: Pulley 2: Bath
4e: Base Ro: times 111g g 7~'4 4 f' ”1
6rAK5d・Cylinder 11S5, mold heald 3b = protrusion 5a Advance direction 3C: Ear axis 5b: Fixed mold 3 d: , If+1ill 6 a, 7 a:
Hi:/ChaiO-ru 5e: Nakanito 6b, 7b-Rotation direction 6f Rotation direction sub-agent Inner H'' Mekari agent Hikari Hagiwara de Oni 1 Zubi

Claims (1)

[Claims] A thin plate continuous casting apparatus using a rotary mold having protrusions on both edges, characterized in that an uncooled stationary mold is brought into contact with the outer periphery of the protrusions on both edges of the rotary mold.