JPH0526586B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a continuous casting apparatus that continuously casts molten metal using a part of a driven endless belt as a mold surface.

(Prior Art) The conventional continuous casting apparatus will be explained with reference to FIGS. A pair of short-side molds 5 are interposed between both side edges of mold surfaces (opposing surfaces) 1a of each belt 11, 11, and 5 is a tundish in which molten metal 4 is stored. , 3a, and the endless belts 11, 11 are driven in the same direction, water flows from the nozzle of the tundish 5 between the mold surfaces (opposing surfaces) 1b of the belts 11, 11 made by the same manufacturers. Heat is removed from the molten metal 4 by the mold surface 1a, etc., and a solidified layer 4a is generated. This coagulated layer 4a is cooled and expanded as the endless belts 11, 11 move, and
After leaving the 1st chamber, it is further cooled, and the entire cross section becomes a solidified layer 4a, and the casting is completed.

(Problems to be Solved by the Invention) In the continuous casting apparatus shown in FIGS. 4 to 6, when casting a high melting point material such as steel, the mold surfaces (opposing surfaces) of the endless belts 1, 1 Thermal deformation (deflection) (see FIG. 7) occurs in 1a. This thermal deformation (bending) can reach a maximum value of several millimeters, creating problems such as unevenness and double skin on the surface of the slab, resulting in the production of defective products.

The present invention has been proposed in view of the above-mentioned problems, and its purpose is to provide a continuous casting apparatus that does not cause defects such as unevenness or double skin on the surface of slabs.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a continuous casting apparatus that continuously casts molten metal using a part of a driven endless belt as a mold surface. The mounting brackets are fixed at predetermined intervals on both side edges, each of the mounting brackets supports the sliding bracket so that it can slide in the belt width direction, and the outer end of each of the sliding brackets and each of the above mounting brackets are connected to each other. A spring is interposed between the outer end of the belt to urge the sliding fittings inward in the width direction of the belt, rollers are rotatably attached to each of the sliding fittings, and supporting members are fixed on both sides of the belt movement path. ,
A rail-shaped guide member that pushes each of the sliding fittings outward in the width direction of the belt via each of the rollers is fixed to each of the supporting members.

(Function) As described above, the present invention fixes the mounting brackets at predetermined spacing positions on both sides of the endless belt, and each of the mounting brackets supports the sliding brackets so that they can slide in the width direction of the belt. , a spring is interposed between the outer end of each of the sliding fittings and the outer end of each of the above-mentioned mounting fittings to urge the sliding fitting inward in the belt width direction, and a roller is rotated on each of the above-mentioned sliding fittings. supporting members are fixed to both sides of the belt movement path, and rail-shaped guide members that push the respective sliding fittings outward in the belt width direction via the respective rollers are fixed to the respective supporting members; When the endless belt moves, the roller of the sliding metal fitting rolls along the inner edge of the guide member, the sliding metal fitting is pushed outward in the belt width direction, and the mounting metal fitting and the belt are pushed outward in the belt width direction ( Since the endless belt is stretched in the width-expanding direction), no unevenness or double skin occurs on the surface of the slab (solidified layer of molten metal).

(Embodiment) Next, the continuous casting apparatus of the present invention will be explained with reference to an embodiment shown in FIGS. Flat head screws 13a are installed on the same side edges so as to sandwich the
With the mounting bracket fixed by the same mounting bracket 1
2 are lined up at intervals in the longitudinal direction of both edges of the belt 11. In addition, 12a is the same mounting bracket 12.
A round protrusion provided on the outer end of the L-shaped portion, 14, 14
is a sliding metal fitting, and each sliding metal fitting 14 is supported by each of the above-mentioned mounting metal fittings 12 so as to be able to slide in the belt width direction. In addition, 14a is the same sliding metal fitting 14.
14b is a shaft-shaped portion provided at the inner end of the sliding fitting 14; 14c is a roller rotatably attached to each shaft-shaped portion 14b;
Reference numeral 5 denotes a compression spring interposed between the round protrusions 12a and 14a, and each of the sliding fittings 14 is connected to the compression spring 1.
5 to the inside of the belt 11 in the width direction (opposite arrow 11a
) is always energized. Further, reference numeral 17 denotes support members fixed to both sides of the movement path of the belt 11;
6 and 16 are rail-shaped guide members, and the outer end portion 16b of each guide member 16 is fixed to the support member 17.

Next, the operation of the continuous casting apparatus shown in FIGS. 1, 2, and 3 will be explained in detail. The guide member 16 is positioned so as to push the roller 14c (sliding fitting 14) in the opposite direction of the arrow 11a and pull the mounting fitting 12 and the belt 11 in the direction of the arrow 11a (widening direction) via the compression spring 15. When the slider 14 moves, the roller 14c of the sliding fitting 14 rolls along the inner end 16a of the guide member 16, and the belt 11 is pulled in the direction of the arrow 11a (width widening direction). (see Figure 3), molten metal 4
No unevenness or double skin occurs in the coagulated layer 4a.

(Effects of the Invention) As described above, the present invention fixes the mounting brackets at predetermined spacing positions on both sides of the endless belt, and supports the sliding brackets so that they can slide in the width direction of the belt. A spring is interposed between the outer end of each of the sliding fittings and the outer end of each of the above-mentioned mounting fittings to bias the sliding fitting inward in the belt width direction, and a roller is attached to each of the above-mentioned sliding fittings. It is rotatably mounted, supporting members are fixed on both sides of the belt movement path, and rail-shaped guide members that push each of the sliding fittings outward in the width direction of the belt via each of the rollers are fixed to each of the supporting members. When the endless belt moves, the roller of the sliding fitting rolls along the inner edge of the guide member, the sliding fitting is pushed outward in the belt width direction, and the mounting fitting and belt are pushed outward in the belt width direction via the spring. Since the endless belt is pulled in the direction of width expansion, the endless belt becomes tense, which has the effect of preventing unevenness or double skin from occurring on the surface of the slab (solidified layer of molten metal).

Although the present invention has been described above with reference to examples, the present invention is not limited to these examples, and various design changes can be made without departing from the spirit of the invention.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view showing an embodiment of a continuous casting apparatus according to the present invention, FIG. 2 is a plan view thereof, and FIG.
The figure is an explanatory diagram of the operation of the same continuous casting machine, Figure 4 is a vertical side view showing the conventional continuous casting machine, and Figure 5 is the fourth
FIG. 6 is a bottom view taken along the arrow line in the figure, FIG. 6 is a front view taken along the arrow line in FIG. 4, and FIG. 7 is an explanatory view of the operation of the continuous casting apparatus. 1a... Mold surface, 11... Endless belt, 12
...Mounting metal fittings, 14...Sliding metal fittings, 14c...
Roller, 15... Spring, 16... Guide member, 17
...Supporting member.

Claims (1)

[Claims] 1. In a continuous casting device that continuously casts molten metal using a part of a driven endless belt as a mold surface, mounting fittings are fixed at predetermined spacing positions on both sides of the belt, and each of the fittings is used to slide the metal. Hold the metal fittings in your hand so that they can slide in the width direction of the belt.
A spring is interposed between the outer end of each of the sliding fittings and the outer end of each of the above-mentioned mounting fittings to bias the sliding fitting inward in the belt width direction, and a roller can be rotated on each of the above-mentioned sliding fittings. The present invention is characterized in that a support member is fixed to both sides of the belt movement path, and a rail-shaped guide member that pushes each of the sliding fittings outward in the width direction of the belt via each of the rollers is fixed to each of the support members. Continuous casting equipment.