JPH0215854A - Belt type continuous casting machine - Google Patents

Abstract

PURPOSE:To suitably improve cooling capacity in accordance with casting width by displacing a block for pressing a short side mold from back side of a belt corresponding to displacement of the short side mold, suitably distributing heating medium and cooling medium and heating or cooling the belt. CONSTITUTION:Molten metal is poured into pouring basin part demarcated with one pair of the belts 4 and one pair of the short side mold 5, and while supporting the upper part of the belt 4 at near the surface 8 of the molten metal with disk type roll group 112 from the back side, the belt is cooled with the cooling medium from spouting pipe 111, and while supporting the lower part of the belt 4 with a cooling box 6, the belt is cooled, and the molten metal is efficiently cooled and solidified to draw out a metal strip 7 from lower part. In the above belt type continuous casting machine, the short side mold 5 is made to be possible to displace and the casting width is made changeable. Corresponding to the displacement of the short side mold 5, the pressing block 118 pressing this from the back side of the belt 4 is displaced with an actuator 117. Further, supply of the heating medium or the cooling medium is adjusted through the piston header 110 divided into two in the inner space thereof with a piston 110a to prevent deformation of the belt 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a belt-type continuous casting machine that can freely change the width of the metal ribbon produced.

[Conventional technology]

Recently, from molten metal such as molten steel, several rhymes to several ± that are close to the final shape are being produced.
A continuous casting method that directly produces metal ribbons as thick as a crane is attracting attention. When this method is used, the conventional multi-step rolling process can be omitted, so that the process and equipment can be simplified. Furthermore, since the process of heating the material above the processing temperature between each process is essentially unnecessary, an energy saving effect can also be expected.

One type of continuous casting is the twin-held type. FIG. 9 is a diagram schematically showing a twin-belt type continuous casting machine. In this continuous casting machine, molten metal in a tundish 1 is supplied from a nozzle 2 to a casting space. This casting space is formed by partitioning both sides of the opposing gap between a pair of belts 4 made of a heat-resistant material such as steel, which run over a pulley 3, with short-sided molds. The molten metal poured into this casting space is cooled and solidified by the cooling box 6, and is carried out as a metal ribbon 7.

At this time, if there is a gap between the belt 4 and the short side mold,
Molten metal is inserted into the hole, causing burrs. Therefore, it is necessary to press the belt against the short side mold.

These short-side molds include short-side molds that do not move in the direction of movement of the metal to be cast, and endlessly connected short-side molds that move in synchronization with the movement of the metal to be cast.

Hereinafter, these will be collectively referred to as short-side molds, but when the above two types are to be expressed separately, the former will be referred to as a fixed short-side mold and the latter as a synchronously moving short-side mold.

When changing the casting width using a fixed short-side mold, the short-side mold is expanded or contracted in the width direction of the belt.

In addition, when changing the casting process using a synchronously moving short-side mold, there are cases in which the synchronously-moving short-side mold is expanded or contracted in the belt width direction together with its stand, and a cooling block that constitutes the synchronously-moving short-side mold is used. When sequentially inserting the blocks between the belts, the blocks may be inserted at enlarged or reduced positions in the width direction of the belt. In this case, although the flock block alone does not move in the belt width direction, the casting width is changed by inserting the flock group whose position has been changed.

In the following description, changes in these short sides during casting by the mold are collectively referred to as movement in the width direction of the short side mold.

The present inventors developed a holding mechanism for this short side mold and filed an application for the same. (Refer to Japanese Unexamined Patent Publication No. 61-99541.) In this device, the short side molds are arranged so as to be movable in the width direction of the belt, and in addition to the short side presser blocks on both sides of the cooling box, the short side molds are also placed inside the cooling pile. A presser block is placed. This short side presser block can freely move forward and backward with respect to the back surface of the belt by transmitting the driving force of the extrusion device through the iron.

By providing a plurality of such short side press blocks in the width direction of the cooling box, it is possible to accommodate changes in the width of the metal ribbon to be manufactured.

In other words, when producing the widest metal ribbon, the short-side mold is positioned at the end of the belt, and the outer short-side presser block is placed at a position where the short-side mold can be pressed through the belt, that is, at the cooling box. A casting space is formed at both ends of the belt, and coolant is supplied throughout the gap between the belt and the cooling box. In addition, when manufacturing thin metal strips with a small width,
Move the short-side mold to a position inward in the belt width direction, and press the short-side mold through the belt with the short-side presser block on the cooling side that is in a position where it can be pressed through the belt. A belt that forms a casting space and is located inside the short side presser block in the width direction of the belt;
A refrigerant is supplied between the block and the cooling box, and the supply of refrigerant to the outside of the block presser on the short side is stopped. In addition, a plurality of ribs are protruded on the surface of the cooling box facing the belt, which prevents the belt from getting too close to the cooling box due to the static pressure of the molten metal, and also prevents the belt from coming too close to the cooling box, and also prevents the belt from coming too close to the cooling box. This is to ensure that

By making the short side presser block move forward and backward with respect to the back surface of the belt in this way, it becomes possible to manufacture thin metal strips having several widths using the same continuous casting apparatus.

In addition, when casting the metal ribbon 7, the part of the entire surface of the belt 4 that comes into contact with the molten metal receives a large heat flux, so that the temperature of the belt 41 is lower in the center than in other parts. Becomes higher. As a result, it is known that the belt 4 thermally expands in the central portion, causing deformation of the belt 4. The situation is schematically shown in FIG. In order to prevent this deformation, it is effective to keep the entire surface of the belt 4 at a uniform temperature.

For example, US Patent No. 3937270 (Special Publication No. 57-6
No. 1502) states that the cause of belt wrinkles is gold framing on the casting entry side, and proposes raising the belt temperature in advance as a countermeasure. Furthermore, Japanese Utility Model Application Publication No. 59-58550 proposes heating both ends in the width direction of the belt to bring it to the same temperature as the center.

Furthermore, when casting slabs of different widths using one type of belt mold, US Pat.
It is also proposed in No. 2002) to change the amount of cooling water at both ends of the belt.

However, when the width of the metal ribbon to be manufactured is changed while continuing casting, there is a method for changing the cooling section and the non-cooling section according to the change in width while following the change during the casting of the metal ribbon. teeth,
Not proposed so far.

Furthermore, US Patent (A) 3878883 (Special Publication No. 59-
No. 4225), the belt is tensioned and the belt cross section 1
This indicates that a tension of 8,000 to 20,000 bonds per square inch is applied.

However, it has been found that even with this method, it is not possible to sufficiently prevent the occurrence of wrinkles in the belt when performing casting that involves changes in the slab.

[Problem to be solved by the invention]

In manufacturing thin strip slabs by continuous casting, it is an important issue to increase the productivity and to produce products of various shapes.

The basic challenge to increase productivity is to increase cooling capacity.

Moreover, a typical example of manufacturing products with various shapes is that the casting process can be changed freely.

Now, in the conventional technology for producing the thin strip slabs described above, a cooling box is installed on the back side of the belt and cooling water is flowed into the cooling box, but depending on the method of this cooling box, There is a limit to the amount of water that can flow, and cooling capacity cannot be increased.

Another method of belt support is to support the belt using a group of disk rolls. This method has the advantage that the amount of cooling water can be greatly increased compared to the cooling box method described above, but on the other hand, since it uses a disc roll method, it can withstand the static pressure of the molten metal being cast. However, it has the disadvantage that it is not suitable for applications where large static pressure is applied.

On the other hand, changes during casting were made by completing casting once, extracting the cast metal from the mold, adjusting the position of the short side mold in the casting width direction, and then starting casting, which ensured high productivity. could not.

No matter which method is used, such as the disk support method or the cooling box method, it has not been possible to secure a belt-type continuous casting machine that can freely change the width and has high productivity.

In view of this background, there is currently a demand for a two-belt continuous casting machine that can freely change the casting process, has high productivity, and produces high quality slabs.

In order to meet this demand, it is necessary to have the following structure.

(11) In order to increase productivity, the mold should be of a vertical type for easy casting, but the mold lower structure should be able to withstand the static pressure of the molten metal at this time.

(2) In order to increase productivity, the upper structure of the mold should have a structure that can supply a large amount of cooling water.

(3) It must have a structure that allows the casting process to be changed during casting.

(4) The structure must be such that the amount of belt deformation can be suppressed.

The present invention provides a belt type continuous casting machine that can meet such demands.

[Means to solve the problem]

The first invention includes a pair of belts and a pair of short side molds defining a pool between the pair of belts,
In a belt-type continuous casting machine that produces a metal ribbon by cooling and solidifying molten metal poured into the sump, the short side mold is disposed between a pair of belts so as to be displaceable in the width direction of the belt. A pressing block capable of pressing a short side mold from the back side of each belt, a group of disc rolls that can be expanded and contracted in the axial direction to maintain the flatness of the pair of belts, and An internal space is provided with a plurality of cooling/heating medium distributors arranged in parallel in the width direction of the belt on the back side, and a branch flow path communicating with the cooling/heating medium distributor, and is divided into two in the axial direction by a piston. a fluid supply piston header having one of its internal spaces connected to a cooling medium supply source and the other side connected to a heating medium supply source, and a fluid for discharging the cooling/heating medium from the cooling/heating medium distributor. This belt-type continuous casting machine is characterized by having a discharge path and a follow-up controller that expands and contracts the disk roll group in response to the displacement of the short-side mold.

Further, the second invention has a pair of belts and a pair of short side molds defining a pool between the pair of belts, and cools the molten metal poured into the pool. In a belt-type continuous casting machine that produces metal ribbon by solidification,
The short side mold is disposed between a pair of belts so as to be displaceable in the width direction of the belt, and a pressing block capable of pressing the short side mold from the back side of the belt is provided on the upper side of the back surface of each of the belts, and a pair of pressing blocks are provided on the upper side of the back surface of each of the belts. A group of disk rolls that can be expanded and contracted in the axial direction to maintain the flatness of the belt, a plurality of cooling/heating medium distributors arranged in parallel in the width direction of the belt, and a branch flow communicating with the cooling/heating medium distributors. a fluid supply piston header having an internal space bisected in the axial direction by the piston, one of which is connected to a cooling medium supply source and the other to a heating medium supply source; a fluid discharge path for discharging the cooling/heating medium from the cooling/heating medium distributor;
The disk roll group is provided with a following device that expands and contracts the group of disc rolls in response to the displacement of the short-side mold in the belt width direction, and the lower part of the back surface of the belt is divided into side end portions in the belt width direction. A cooling/heating chamber provided therein, a plurality of short side presser blocks that are movable forward and backward with respect to the back surface of the belt provided in the cooling/heating room, and a cooling box provided on the center side of the belt in the 11 direction. , equipped with a branch flow path that communicates with the cooling direction of the cooling and heating chambers,
A ladder and a fluid supply piston having an internal space divided into two parts by a piston, one of which is connected to a cooling medium supply source and the other connected to a heating medium supply source;
a fluid discharge path for discharging the cooling/heating medium from the heating chamber;
The belt-type continuous casting machine is characterized in that it has a follow-up device that selectively moves the short-side presser block forward and backward with respect to the back surface of the belt in response to the displacement of the short-side mold in the belt width direction.

〔Example〕

The present invention will be explained below based on examples thereof.

FIG. 9 is a schematic side view showing the concept of a twin-belt continuous casting machine, in which the molten metal poured into the tundish 1 passes through a nozzle 2 and is passed through a belt 4 which is placed on a pulley 3 and a short belt (not shown). It is poured into the casting space defined by the side mold.

A cooling box 6 is provided on the back side of the belt 4, and the belt 4 is generally cooled with cooling water to solidify the molten metal. The solidified metal is continuously drawn out from the lower part of the mold in the form of a metal ribbon 7.

The belt unit on one side of the twin-belt continuous casting machine,
A single synchronously moving short side mold 5 is shown.

Figure 2 is the first diagram to explain the cooling device section on the back of the belt.
Figure Xo-Xo shows a cross section taken along arrows. In FIGS. 1 and 2, the cooling box 6 includes an upper jet cooling section 6a and a pad cooling section 6.
It is composed of b.

Since the molten metal static pressure is low, the jet cooling section 6a avoids pressurizing and pressing the belt from the back surface, and cools the belt back surface with a jet water stream jetted from the jet nozzle 111 in order to obtain a high heat removal effect.

Further, in order to maintain the flatness of the belt 4, the belt is supported from the back side by a disk 119.

The pad cooling section 6b has a pad structure to remove heat while counteracting the static pressure of the molten metal, and cooled water under pressure flows through the inside of the water 1125. In order to keep the thickness of the water channel constant, the belt is slidably supported by cooling pad fins 12, which will be described later. However, most of the static pressure of the molten metal is supported by the static pressure of the cooling water in the pad, so no large force is applied to the cooling pad fins 12.

The belt 4 is passed around an upstream pulley 52, a downstream pulley 53, and a steering pulley 54, and is connected to a tension cylinder 6.
1, and a driving force is applied from one of the pulleys to rotate.

On the other hand, the short side mold 5 has a structure in which a large number of short side blocks 55 are connected in order to rotate in synchronization with the belt, runs along a guide 58, and is driven by an upstream sprocket 56 or a downstream sprocket 57. . This short side block 55 can change the width of the mold 51 by moving the guide 58 in the width direction. If there is a gap between the short side mold 5 and the belt 4, the jet cooling section 6a has a belt holding block in order to press the molten metal against the crisp belt, and the pad cooling section 6b has a belt holding block. It has a mechanism 59 for pressing.

FIG. 3(a) is a plan view showing a short-side mold, a pressure pulley, and a group of disc rolls for supporting the cage in an embodiment of the present invention, and FIG. (11) is a side view. 4 and 5 are rear views of FIG. 3. In this embodiment, a pressing block 118 movable in the width direction of the belt is provided on the back surface of the belt 4 in order to bring the short side mold '5 and the belt 4 into close contact with each other and maintain the flatness of the belt 4. A group of disk rolls 112 are provided on the back surface of the belt 4 for the purpose of carrying out the belt. This pressing block 118 moves in synchronization with the short-side mold 5, and presses the disc "roll group 112".
Following the movement of this push block 118, the belt 4 can be automatically expanded and contracted in the width direction of the belt 4 (can be expanded and contracted).

Figure 3 (al) and Figure 4 show the maximum casting width, and Figure 5 shows the minimum casting width. Figure 6 (a)
is a cross-sectional view showing the fitted state of the disk roll and its shaft, No. 6
Figure (b) is the Xs Xs sectional view of Figure 4, and Figure 6 (C1
is a sectional view taken along the line X and -X in FIG. The short side mold 5 is moved in the width direction by a drive device 113, and is pressed from the back side of the belt 4 by a pressing block 11B that is moved by a drive device 117 in synchronization with the movement.

It has 8 holes embedded in it so that it can be used for riding. These keys 116 have hook-like protrusions at both ends, and a hook portion 119b protrudes inside a boss 119a to which a disc is attached.
It connects the disks on both sides through. (Figure 6(a)
Reference) Keyway 115G, , Key 116K1 in G2. th
connects the disks 112R, , R□ and 112Ri, 'R4, and has a structure in which they are not separated by more than a certain distance 21. Similarly, key 1 in keyway 115' G3+ Ga
16K! , Ka is the disk 112 Rz, Rz and 1
12R4 and Rs are connected, so the disk 112R
l''Rs expands to a maximum width W' constrained by the key length.

The outermost disk 112R is restrained by a restraining bracket 118a in the width direction of the pressing block 118,
It has a rotatable structure and slides in the width direction in synchronization with the pressing block 118.

When reducing the width, the driving device 117 moves the pressing block 118 to a position corresponding to the moved short side mold 5. At this time, each boss 112a slides in the width direction along the axis 114, and the width can be reduced to W where the boss 112a contacts the adjacent boss. + to key 116
4 slides relative to the boss 112a, and the boss 11
It is stored in 2a. FIG. 5 shows the state at this time.

To widen the width, conversely, move the pressing block 118 to the drive device 1.
When pulled out at 17, the disc 112 R+, R2, R:l
, R4, then the keys 116K, , R2, 1. to 4
As a result, the bosses 112a are pulled out one after another, and the disk roll group 112 can be expanded to the required width.

Here, the distance between each boss 112a is not necessarily uniform in the maximum and minimum range, but the distance between the disks 1121? The disc spacing and boss length are determined so that the flatness of the belt 4 is not affected within the maximum and minimum range between l, Rz, and so on. As described above, the disc roll group 112 can be automatically expanded and contracted according to the movement of the short-side mold 5.

The disc pitch P, the rotating boss length R2, and the difference between the maximum medium W and the minimum medium W are determined as follows.

(W-w)/2=P+(n-1)-Pg(n-1)-
(n-1) (P-P+), discs 112R, Rg-, and key 116 are immersed in cooling water, so they are made of materials that do not corrode, such as rust-resistant steel, and prevent dust and water from entering. In order to prevent this, it is effective to seal between the discs with a bellows 120 made of sealing rubber or the like. The shaft 114 is connected to the disks 112R, , R, - by a key 116 so that they rotate together, and the end bearing 121 and the intermediate bearing 122 rotate together.
It is supported by A bush 118b allows the press block 118 and the shaft 114 to rotate without sliding.

The pressing block 118 has a structure incorporating a wear-resistant sliding member 109b, and a spring 109 holds the belt 4.
It slides between the belt 4 and the belt 4 while being pressed by the belt 4. Therefore,
The reaction force of the force pressing down the belt 4 is transmitted to the shaft 114, which is supported by a frame 123 through bearings 121 and 122.

Furthermore, a piston header 110 is provided to allow cooling water to flow inside the press block 118 and a heating medium to flow outside thereof as the short-side mold 5 moves.

The piston 110a follows the movement of the short side mold 5 by the actuator 110b.

As a result, the fluid that has passed through the cooling flow rate adjustment valve 124 and the heating medium flow rate adjustment valve 124a is transferred to the piston 110.
The water is ejected to the belt 4 through the jet pipe 111 at point a, and cools the belt 4 as a jet flow 111a.

FIGS. 7 and 8 are plan views showing a holding mechanism for the lower part of the short side mold, which is a main part of the second invention. Note that the holding mechanism for the upper part of the short side mold in the second aspect of the present invention is the same as the mechanism shown in FIGS. 3 to 6 above. Here, a mechanism for moving the short-side mold and short-side presser block, and a cooling/heating medium supply device are shown.

The short side mold 5 is pressed down from the back side of the belt 4 by a plurality of short side presser blocks 9 provided along the width direction to prevent leakage of poured molten metal. and,
When changing the width of the manufactured metal ribbon 7, the actuator 13 moves it in and out in the width direction. The short side presser block 9 moves back and forth in accordance with the position of the short side mold 5 that has been moved.

This short side presser block 9 has a cooling section divided in the width direction.
It is arranged in the heating chamber 14 and has a plate shape that is long in the casting direction. Then, the cooling/heating chamber 14 is connected via the rod 10.
It is guided to the outside of the belt 4 and pushed up in a direction away from the belt 4 by a spring 15 (see Figures 4 and 5). The head of the rod 10 is in contact with a cam shaft 17 having the same number of eccentric cams 16 as the number of short side presser blocks 9. The eccentric cams 16 are arranged at equal intervals at an angle of 360/n, which is 360 degrees divided by the number n of short side presser blocks 9. As a result, when the camshaft 17 is rotated, the short side presser blocks 9 are sequentially moved in and out from the outside to the inside or in the opposite direction.

Further, since the bearing 18 of the camshaft 17 is attached to the fixed frame via a spring 19, it serves as a buffer when the short side presser block 9 is pushed up due to displacement of the belt 4 or abnormal load while the presser is in operation. . This camshaft 17
is the drive mechanism 21 via the universal joint 20.
This provides the required rotation angle.

7 and 8, the path through which the cooling water flows is shown by a solid line, the path through which the heating medium flows by a broken line, and the partition plate 37. A route passing through the waterway plate 38, 38a and the back side of the pressing block 9 is indicated by a single point U4 line. Each cooling/heating chamber 14 passes through an inlet pressure control valve 22.
Cooling water is supplied from the supply-side piston header 23 via branch waterways 24 of the cooling/heating chamber 14 divided in the width direction. This cooling water cools the belt 4 while traveling through the water channel 25 on the back side of the belt 4 from below to above. Then, it passes through the drainage side branch waterway 26 and reaches the drainage side piston header 2.
7 and is discharged to the outside of the system via the outlet pressure control valve 28.

The cooling water flowing through the water channel 25 has a flow velocity and a channel thickness determined so that the necessary heat can be removed from the belt 4, and the inlet side is kept at a pressure approximately 1O lower than the static pressure of the molten metal. It is set by the pressure control pulp 22 and the outlet pressure control valve 28.

The piston headers 23, 27 are connected to each piston 29.
, 30 in the width direction. The inner side serves as the aforementioned cooling water supply/discharge system, and the outer side serves as a supply/discharge system for a heating medium such as steam. The heating medium is supplied and discharged by a heating medium pressure control valve 31, a supply piston header 23, a branch waterway 24, a waterway 25, a drainage branch waterway 26, and a drainage piston header 27, in the same manner as the cooling water supply and discharge. and via the heating medium outlet pressure control valve 32.

In order to partition the heating medium and the cooling medium along the width direction of the belt 4, the corresponding short side pressing block 9 is pressed onto the belt 4.

Next, an example in which the second invention is applied to a vertical belt type continuous casting machine will be described.

The height of the vertical mold is 3m (distance from the center of the input pulley to the center of the output pulley), the width of the belt is 1900+n, and the meniscus position of the molten metal is 300mm below the center of the input pulley. It was operated.

In this vertical continuous caster, the range from 100 mm above the meniscus position of the molten metal to 500 mm below is the jet cooling section in which the belt is supported by a group of disk rolls, and further below that, the range of 2200 μl is the cooling box. It has a belt support system. The cooling box has an upper cooling part of 1l10
It has two stages: 0a and the lower cooling section 1100mm. Cooling water is 8 to 8 at the jet section per 111 m on one side of the belt.
llt/min, 5 to 7 t/min in the upper cooling mountain part
min% The lower cooling box part is manufactured to be variable in the range of 3 to 5 t'/win. The amount of cooling water that can flow through a cooling box varies slightly depending on its design, but is approximately 7.
Since it was determined that t/win was close to the limit, the upper 600 am of the mold was supported by a belt using a group of disk rolls, and the cooling method was a jet type, which allowed cooling water to flow at a rate of 8 t/min or more.

In this continuous casting machine, when the casting speed is 10m/11in, the amount of cooling water is 8t at the jet part per 1m on one side of the belt.
/min, the upper cooling box operates at 5 t/min, the lower cooling box operates at 3 t/min, and the casting speed is 20 m/min.
At the time of operation, the amount of cooling water was 11.7 t/n+in and 5 t/a+in, respectively. The plow ribbon cast in this manner was of good quality at all casting speeds.

That is, high-speed casting of 20 m/min has become possible by such a change in the cooling structure.

Further, a test was conducted in which the casting width was changed without stopping casting at a casting speed of 10 m/min.

During the first half of casting 30m1n, during casting 1700+
nm, and 15 during casting during the latter half of casting 30a+in.
It was cast at 00mm.

When the casting width is 1700 mm, the jet cooling part is in the situation shown in Figure 4, and the cooling box part is in the situation shown in Figure 7.
In the case of 1500 fl during casting, the jet cooling section is in the situation shown in FIG. 5, and the cooling box section is in the situation shown in FIG. 8. In other words, if the casting width becomes narrower than 150 (Jam),
The jet section and the cooling box section of both ends of the belt were heated with heated steam at 120.degree. C., although each method was different.

In this way, casting was performed well in both cases of 1700 mm width and 1500+n width, and excellent slabs were obtained.

In addition, in order to supply molten metal to the mold that supports a casting speed of 10 m/min or more, the mold may have a slight inclination, but it is essential that it faces upward. Limited to vertical molds.

〔Effect of the invention〕

As explained above, in the present invention, the work of holding the short side mold at a position corresponding to the movement of the short side mold in the width direction of the belt and separating the part of the belt to be heated and the part to be cooled is carried out. is done automatically. Furthermore, the upper part of the mold, which is subjected to a large heat load, is provided with a fin roll structure to increase heat removal power, and the lower part of the mold, where the static pressure of molten metal is high, is provided with a pad structure, thereby making it possible to withstand the static pressure of molten metal. In this manner, according to the present invention, high quality metal ribbons having various widths can be easily produced while preventing belt deformation.

[Brief explanation of the drawing]

FIG. 1 is a vertical perspective view for explaining the overall configuration of the belt-type continuous casting machine according to the present invention, and FIG. 2 is a
FIG. 3 is a schematic side view showing the structure of the internal cooling and heald support device surrounded by three pulleys and a belt, showing the Xo concave cross section (al indicates the Z1Z1 cross section in FIG. FIG. 3 (b
) is a side sectional view of X7-X7 in FIG. 3(a), FIG. 4 is a view of FIG. Similarly, Fig. 3 (al is a view from the rear, and shows the state set during minimum casting. Fig. 6 fa) shows an enlarged view of one of the belt support discs, and shows one disc roll. A cross-sectional view showing the fitting between the shaft and its shaft, FIG. 6 1bl and (C) are
8 and X9-X9, FIG. 7 is a plan view showing the short side mold lower pressing mechanism in an embodiment of the present invention, FIG. 8 is a partially enlarged plan view of FIG. 7, and FIG. FIG. 10 is a schematic side view showing the concept of a twin-belt type continuous casting machine, and a schematic diagram showing belt deformation that occurs during casting. DESCRIPTION OF SYMBOLS 1... Tanditetsu, 2... Nozzle, 3... Pulley, 4... Belt, 4a... Both ends of belt 4,
4b... Wrinkles on the belt, 5... Short side mold, 5a.
...Short side mold support member, 5b...Lubrication piping, 5c...
・Sliding protrusion, 6... Cooling box, 6a... Jet cooling section, 6b... Pad cooling section, 7... Metal thin strip, 8...
- Molten metal surface, 9...Short side holding block, 10...
・Rod, 11...Sealing material, 12...Cooling pad fin, 13...Actuator, 14...Cooling
Heating chamber, 14a... Cooling/heating chamber outer plate, 15...
Spring, 16... Eccentric cam, 17... Camshaft,
18...bearing, 19...spring, 20...
Universal joint, 21... Drive mechanism, 22.
...Pressure control valve, 23...Supply side piston header, 24...1 waterway, 25...waterway, 25a
...Flow path inlet side nozzle, 26...Drainage side branch waterway, 2
7... Drain side piston header, 28... Outlet side pressure control valve, 29... Piston, 30... Piston, 31
... Supply side pressure control valve for heating medium, 32... Discharge side pressure control valve for heating medium, 33 a , 33 b ,
33 c... Seal, 34, 35... Actuator, 36... Control device, 37... Partition plate, 38.3
8a... Channel plate, 41... Electromagnetic induction coil for belt end heating, 51... Mold, 52... Upstream pulley,
53... Downstream pulley, 54... Steering pulley, 55... Short side block, 56... Upstream sprocket, 57... Downstream sprocket, 58... Short side block guide, 59...・・Belt holding mechanism, 60・
... Preheater, 61 ... Tension cylinder, 109a
...Spring, 109b...Sliding member, 110.
...Piston header 1,110a...Piston, 1
10b...Piston movement actuator, 111.
... Jet pipe, 1lla... Cooling water jet, 1Llb...
・Heating medium jet, 112...Disc roll group, 112R
1, R2...disc, 112a...boss, 113...
・Short side movement actuator, 114...axis, 115
, 115G+ , , G2... keyway, 116 ,
At 116. 2...key, 117...pressing block movement actuator, 118...pressing block, 118a...
・Restriction bracket, 118b...Bearing bush, 119
...Disk, 119a...Boss, 119b...Key catching part of boss, 120...Bellows, 121.
... End bearing, 122 ... Intermediate bearing, 123 ... Frame, 124 ... Cooling water flow control valve, 124a.
... Heating medium flow control valve, ... Control device.

Claims (2)

[Claims] (1) It has a pair of belts and a pair of short-side molds that define a pool between the pair of belts, and the molten metal poured into the pool is cooled and solidified to create a metal ribbon. In a belt-type continuous casting machine for manufacturing, the short side mold is disposed between a pair of belts so as to be displaceable in the width direction of the belt, and the short side mold is disposed on the back side of each belt from the back side of the belt. a pressing block capable of pressing the pair of belts, a group of disc rolls that can be expanded and contracted in the axial direction to maintain the flatness of the pair of belts, and a plurality of cooling/heating medium distributors arranged in parallel in the width direction of the belt on the back side of the belt. and a branch flow path communicating with the cooling/heating medium distributor, and has an internal space divided into two in the axial direction by the piston, one of which is connected to a cooling medium supply source and the other is connected to a heating medium distributor. A fluid supply piston header connected to a medium supply source, a fluid discharge path for discharging the cooling/heating medium from the cooling/heating medium distributor, and a fluid discharge path for discharging the cooling/heating medium from the cooling/heating medium distributor, and expanding/contracting the disk roll group in response to the displacement of the short side mold. A belt-type continuous casting machine characterized by having a follow-up control device. (2) It has a pair of belts and a pair of short-side molds that define a pool between the pair of belts, and the molten metal poured into the pool is cooled and solidified to create a metal ribbon. In a belt-type continuous casting machine for manufacturing, the short side mold is disposed between a pair of belts so as to be displaceable in the width direction of the belt, and a short side mold is disposed between the belts, and a short side mold is disposed on the upper side of the back side of each belt. A pressing block that can press the side mold,
A group of disc rolls that can be expanded and contracted in the axial direction maintains the flatness of a pair of belts, and a plurality of cooling rolls arranged in parallel in the width direction of the belt.
It is equipped with a heating medium distributor and a branch flow path communicating with the cooling/heating medium distributor, and has an internal space divided into two in the axial direction by a piston, and one of the internal spaces is connected to a cooling medium supply source. a fluid supply piston header with the other end connected to a heating medium supply source; a fluid discharge path for discharging the cooling/heating medium from the cooling/heating medium distributor; It is equipped with a tracking device that expands and contracts in response to displacement in the direction, and on the lower side of the back of the belt, there is a cooling/heating chamber that is partitioned and arranged in parallel on the side end side in the belt width direction, and a A plurality of short side presser blocks that can move forward and backward with respect to the back side of the belt arranged in the heating chamber, a cooling box arranged on the center side in the width direction of the belt, and a branch that communicates with the cooling/heating chamber and the cooling box. Equipped with a flow path, 2 with a piston
a fluid supply piston header having a divided internal space, one of which is connected to a cooling medium supply source and the other connected to a heating medium supply source; Belt-type continuous casting characterized by having a fluid discharge path for discharging fluid, and a follow-up device that selectively moves the short side presser block forward and backward with respect to the back surface of the belt in response to the displacement of the short side mold in the belt width direction. Machine.