KR20110088656A - Front mold plate for casting, mold plate assembly for casting, and mold for casting comprising the same - Google Patents

Abstract

PURPOSE: A front mold plate for casting, mold plate assembly for casting, and casting mold comprising the same are provided to improve the uniform cooling efficiency of a mold. CONSTITUTION: A front mold plate for casting comprises a front side mold plate(110) and a rear side mold plate. The front side mold plate has one surface and the other surface, which contacts to the molten metal. The rear side mold plate contacts to one surface of the front side mold plate. A plurality of first slots is formed on one surface of the front side mold plate in a row. The distance, between a first slot lower side and the other surface from a center part, is shorter than the distance between a first slot lower side and the other surface from an edge part.

Description

Front mold plate for casting, mold plate assembly for casting and casting mold having the same {Front mold plate for casting, mold plate assembly for casting, and mold for casting comprising the same}

The present invention relates to a casting front mold plate, a casting mold plate assembly, and a casting mold having the same, and more particularly, a casting front mold plate and a mold mold plate for enabling high-quality cast steel production at a high yield. An assembly and a casting mold having the same.

In general, the casting mold is related to the shape of the product to be formed in the casting process, and is used to make a product having a desired shape by passing a molten metal (for example, a molten metal) formed at a high temperature.

In the casting process, molten metal of the blast furnace is introduced into a mold of a casting machine to form a cast. In the case of a continuous casting process, molten metal is continuously poured into a mold of a continuous casting machine and solidified, thereby slab, bloom or billet. ), Etc. During the casting process, the molten metal undergoes an initial solidification process of forming a solidification layer on the outer portion of the mold during the casting process, and then solidifies completely through cooling or the like using a spray or the like to become a final product. At this time, the initial solidification process while the molten metal passes through the mold has the greatest effect on the quality of the final product, but the conventional mold and the like have a problem that a uniform solidification layer may not be formed during such initial solidification. .

The present invention is to solve various problems including the above problems, to provide a casting front mold plate, a casting mold plate assembly and a casting mold having the same to enable the production of high-quality cast steel with a high yield. For the purpose of

The present invention has one surface in which a plurality of first slots arranged in parallel are formed, and the distance from the bottom surface of the first slot in the center portion to the other surface facing the one surface and in contact with the molten metal is the first slot at the edge. It provides a front mold plate for casting, characterized in that less than the distance from the bottom surface to the other surface.

According to another aspect of the present invention, the distance from the bottom to the other surface may be longer as the first slot formed on the edge of the one surface.

According to another feature of the present invention, the distance from the bottom of the first slot to the other surface may be longer from the central portion of the one surface to the edge.

According to another feature of the present invention, a second slot intersecting the first slots may be further formed on the one surface.

According to still another feature of the present invention, the distance between the centers of the adjacent first slots may be constant.

The present invention also includes a front mold plate having one surface and the other surface facing the one surface and in contact with the molten metal, and a rear mold plate in surface contact with the one surface of the front mold plate, wherein the one surface of the front mold plate is provided. And a plurality of first slots arranged in parallel, wherein the distance from the bottom of the first slot at the center to the other side is shorter than the distance from the bottom of the first slot at the edge to the other side. Provide a plate assembly.

According to another aspect of the present invention, the distance from the bottom of the first slot to the other surface may be increased from the central portion of the one surface to the edge.

According to still another feature of the present invention, a second slot intersecting the first slots may be further formed on the one surface of the front mold plate.

According to still another feature of the present invention, a second slot intersecting the first slots may be formed on a surface of the rear mold plate in the direction of the front mold plate.

According to still another feature of the present invention, a cooling medium inlet and an outlet may be formed on a surface of the rear mold plate that faces the surface of the front mold plate.

According to still another feature of the present invention, the distance between the centers of the adjacent first slots may be constant.

The present invention also includes a plurality of mold plate assemblies coupled to define a slab shape, wherein at least one of the mold plate assemblies comprises at least one of the above-described casting front mold plates or the above-mentioned casting mold plate assemblies. It provides a casting mold comprising at least one of.

According to the casting front mold plate of the present invention, the casting mold plate assembly and the casting mold having the same according to the present invention made as described above, the casting front mold plate, the mold plate for casting to enable the production of high quality cast steel with high yield It is possible to implement an assembly and a mold for casting having the same.

1 is a perspective view schematically showing a casting front mold plate according to an embodiment of the present invention.
FIG. 2 is a perspective view schematically showing a casting back mold plate that may be attached to the front mold plate of FIG. 1. FIG.
FIG. 3 is a cross-sectional view schematically illustrating the casting front mold plate of FIG. 1.
4 is a perspective view schematically illustrating a casting mold including the casting front mold plate of FIG. 1.
5 is a conceptual diagram schematically showing a process of manufacturing a cast using a casting mold.
FIG. 6 is a plan view schematically illustrating the casting mold of FIG. 4.
7A is a schematic cross-sectional view of a casting front mold plate according to another exemplary embodiment of the present invention.
7B is a schematic cross-sectional view of a casting front mold plate according to another exemplary embodiment of the present invention.
Figure 8 is a front view schematically showing a casting mold front mold plate according to another embodiment of the present invention.
9 is a conceptual diagram schematically showing a part of the front mold plate for casting according to a comparative example for temperature simulation.
10 is a conceptual diagram schematically showing a part of a front mold plate for casting according to an experimental example for temperature simulation.
FIG. 11 is a conceptual diagram illustrating a color simulation result of a temperature simulation at a molten contact surface of a casting front mold plate illustrated in FIG. 9.
FIG. 12 is a conceptual diagram illustrating a temperature simulation result in a color distribution of the molten contact surface of the casting front mold plate illustrated in FIG. 10.
FIG. 13 is a graph showing a simulation temperature distribution of the molten contact surface in one cross section of the front mold plates for casting illustrated in FIGS. 9 and 10.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically showing a casting front mold plate 110 according to an embodiment of the present invention, Figure 2 is a casting mold back mold that can be attached to the front mold plate 110 of FIG. 120 is a perspective view schematically showing FIG. 3 is a cross-sectional view schematically showing the casting front mold plate 110 of FIG. 1.

A plurality of first slots 111, 112, 112 ′, 113, 113 ′, 114 and 114 ′ arranged in parallel are formed on one surface 110 a of the front mold plate 110 for casting according to the present embodiment. have. The other surface (the opposite surface) facing the one surface 110a is a surface in contact with the molten metal. The first slots 111, 112, 112 ', 113, 113', 114 and 114 'have a distance from the bottom of the first slot in the center to the other surface opposite to the one surface 110a at the edge. It is formed to be shorter than the distance from the bottom surface of the first slot to the other surface. In FIG. 1, the distance from the bottom of the first slot 112 to the other surface opposite to the one surface 110a is equal to the distance from the bottom of the first slot 112 'to the other surface opposite to the one surface 110a. Although shown, this is merely exemplary and may, of course, be different. The same is true in the following embodiments and modifications. The front mold plate may be formed of a copper alloy having a high thermal conductivity. This also applies to the embodiments and modifications described later.

The casting back mold plate 120 as shown in FIG. 2, which may be attached to the front mold plate 110, may be in surface contact with the front mold plate 110. The back mold plate 120 may also be referred to as a water jacket. The back mold plate 120 may have a second slot formed on one surface 120a. In FIG. 2, two second slots 127 and 128 are formed, but the number of second slots may be one or plural, and various modifications are possible. When the rear mold plate 120 is attached to the front mold plate 110, the one surface 120a comes into contact with one surface 110a of the front mold plate 110. In this case, the second slots 127 and 128 intersect the first slots 111, 112, 112 ′, 113, 113 ′, 114, and 114 ′. The back mold plate may be formed of copper alloy and / or stainless steel or the like. The same is true in the following embodiments and modifications.

When the front mold plate 110 and the rear mold plate 120 are combined, this becomes a mold plate assembly. In the mold plate assembly, the first slots 111, 112, 112 ′, 113 and 113 of the front mold plate 110 are formed. ', 114 and 114' together with one surface 120a of the rear mold plate 120 form first channels through which the cooling medium can pass. Of course, the second slots 127 and 128 of the rear mold plate 120 also form second channels through which the cooling medium can pass along with the one surface 110a of the front mold plate 110. As a result, in the mold mold assembly for casting, the first slots 111, 112, 112 ′, 113, 113 ′, 114 and 114 ′ are face 110a in the direction of the rear mold plate 120 of the front mold plate 110. The second slots 127 and 128 are formed on the surface 120a of the rear mold plate 120 in the direction of the front mold plate 110. Through this, the cooling medium supplied through an inlet (not shown) which may be formed on the other surface 120b of the rear mold plate 120 passes through the second slot of the rear mold plate 120 to form the front mold plate 110. First slots 111, 112, 112 ′, 113, 113 ′, 114, 114 ′ of the first slots, and conversely, first slots 111, 112, 112 ′, 113 of the front mold plate 110. , 113 ', 114, 114' through the outlet (not shown) can be formed on the other side (120b) of the rear mold plate 120 through the second slot of the rear mold plate 120 It can be discharged to the outside.

4 is a perspective view schematically illustrating a casting mold 100 including the casting front mold plate 110 of FIG. 1. As shown in FIG. 4, the mold 100 for casting includes a mold plate assembly 131 having a front mold plate 110 as shown in FIG. 1 and a rear mold plate 120 as shown in FIG. 2. ). The casting mold 100 includes mold plate assemblies 132, 133, and 134 in addition to the mold plate assembly 131, such that four mold plate assemblies 131, 132, 133, and 134 are illustrated in FIG. 4. The shape of the molten metal that is injected into the mold 100 through the combined shape) is limited. 4 exemplarily illustrates that an inlet 129a through which a cooling medium is introduced and an outlet 129b through which the cooling medium is discharged are formed in the rear mold plate 120. Of course, inlets and outlets may be formed in the rear mold plates of the other mold plate assemblies 132, 133, and 134.

5 is a conceptual diagram schematically illustrating a process of manufacturing a cast using a casting mold 100 as shown in FIG. As shown in FIG. 5, the molten metal 2 formed at a high temperature flows into the mold 100 through the immersion nozzle 3 under the tundish 1, and passes through the mold 100. The solidification layer (4) is formed in the portion adjacent to the inner surface of the initial solidification process. After passing through the mold 100, it is cooled by a cooling medium sprayed through the spray nozzle 5 or the like, and the proportion of the solidified layer 4 is increased, so that the slab 6 having a predetermined shape, for example, a slab. And the like. It is moved by the guide roll 7 until it is a final product and / or after the final product, and as shown in FIG. 5, a plurality of spray nozzles 5 may be arranged, and the spray nozzles 5 and the guide rolls may be disposed. Various modifications are possible, such that (7) may be arranged alternately.

The initial solidification process of the molten metal (2) flowing into the mold 100 in such a slab manufacturing process is an important factor that determines the properties of the (sequential) casting is completed. As described above, the cooling medium is present in the first slots and the second slots formed in the front mold plate 110 and / or the rear mold plate 120, as described above during the casting process, the mold 100 by the cooling medium The inner surface of, that is, the other surface of the front mold plate 110 is cooled. Accordingly, the part in contact with the other surface of the front mold plate 110 of the molten metal introduced into the mold 100 is cooled to form the solidification layer 4 in the initial solidification process. The solidification layer 4 during the initial solidification process is a solidification shell, and plays an important role in determining the basic shape and surface quality of the slab 6, which is the final product. Therefore, it is important to form a solidified shell having appropriate strength and no cracking of the surface to a uniform thickness.

However, if the arrangement of the channel, which is the passage through which the cooling medium moves in the mold 100, is not appropriate, the thickness of the solidification shell is not constant, so that the shape of the cast steel, which is the final product, may be distorted or cracks may occur on the surface of the cast steel. In the portion indicated by the dotted line in FIG. 6, which is a plan view schematically showing the casting mold 100 of FIG. 4, the cooling effect by the adjacent mold plate assemblies is simultaneously received. For example, in the upper right part of the portions indicated by the dotted lines of FIG. 4, the molten metal in the mold 100 receives the cooling effect by the mold plate assembly 132 and the mold plate assembly 133 simultaneously. In this case, for example, if the first slots are formed such that the distance from the bottom of the first slots formed on the front mold plate to the other surface opposite to the one surface 110a is constant, the first portion of the mold plate assembly 132 may be formed at the portion indicated by the dotted line. The cooling effect by the one slots and the cooling effect by the first slots of the mold plate assembly 133 are simultaneously received, so that the cooling effect is relatively larger than in other parts not indicated by the dotted line. This lowers the uniformity of the thickness of the solidification shell to be formed, so that cracks occur on the surface of the solidification shell, or the shape of the cast steel, which is the product during cooling by the spray nozzle 5 or the final product after cooling, is distorted, Cracks may occur.

In the case of the front mold plate 110 according to the present embodiment, as described above, the distance from the bottom of the first slot in the center to the other surface opposite to the one surface 110a is equal to the bottom of the first slot at the edge. By making it narrower than the distance to the other surface, such a phenomenon can be prevented from occurring. That is, even in a portion that receives the cooling effect by the mold plate assembly 132 and the cooling effect by the mold plate assembly 133 at the same time, the bottom surface of the first slot that affects the cooling of the portion is on the one surface 110a. Since the distance to the opposite surface is longer than the distance from the bottom of the first slot to the other surface which affects the cooling of the other portion, consequently the cooling effect on the portion adjacent to the inner surface of the mold 100 of the molten metal becomes uniform. can do. As a result, the uniformity of the thickness of the solidification shell during the initial solidification process is kept constant and the cracks on the surface can be effectively prevented. As a result, the shape of the cast product, which is the product during cooling by the spray nozzle 5 or the like or the final product after cooling, is not distorted. Without causing cracks or the like on the surface of the cast steel, high quality cast steel can be produced with high yield.

This change in cooling distribution can be described in more detail with reference to the simulation results below.

9 is a conceptual view schematically showing a part of the front mold plate for casting according to a comparative example for temperature simulation, and FIG. 10 is a conceptual view schematically showing a part of the front mold plate for casting according to an experimental example for temperature simulation. to be. 9 and 10 show only the half model, which is a half extending from the center to one end of the actual model. In this case, the other half model can be understood to have a symmetric model with respect to the half model and the center part.

As shown in FIG. 9, the casting front mold plate according to the comparative example has first slots extending in parallel with the casting direction (in the ± z-axis direction of FIG. 1) and having a constant depth regardless of position. . As shown in FIG. 10, the casting front mold plate according to the experimental example also includes first slots extended in parallel with the casting direction (in the ± z-axis direction of FIG. 1). However, in the case of the first slots provided in the casting front mold plate according to the experimental example, the distance from the bottom of the first slot in the center to the surface contacting the molten metal is in contact with the molten metal at the bottom of the first slot at the edge. Shorter than the distance to the face The casting front mold plate according to the experimental example may correspond to the casting front mold plate 110 of FIG. 1.

In this simulation, the front mold plates for casting according to Comparative Examples and Experimental Examples were made of the same copper alloy, and their thermal conductivity was about 320 W / mK, and the first slot had the same cooling water as about 30 ° C. as the cooling medium. Assume that it is supplied to the center part. It is assumed that the molten metal is supplied at about 1500 ° C during the casting process.

FIG. 11 is a conceptual diagram illustrating a color distribution of a temperature simulation result of a molten contact surface of a casting front mold plate illustrated in FIG. 9, and FIG. 12 is a result of a temperature simulation of a molten contact surface of a casting front mold plate illustrated in FIG. 10. Is a conceptual diagram showing a color distribution, and FIG. 13 is a graph showing a simulation temperature distribution of the molten contact surface in one cross section of the front mold plates for casting illustrated in FIGS. 9 and 10.

11 and 12, the color distribution of the temperature indicates that the temperature is higher toward the red direction and lower toward the blue direction in the bar color distribution diagram. The temperature distribution in FIG. 13 shows the temperature distribution seen in the cross-section parallel to the casting direction (± z direction) of the starting portion where the molten metal starts to solidify, that is, the upper red portion of FIGS. 11 and 12.

11 and 12, it can be seen that as the hot melt is supplied from the upper side to the lower side of the casting front mold plate, the temperature of the casting front mold plates is generally lowered from the upper side to the lower side.

Referring to FIG. 13, in the case of the front mold plate for casting according to the comparative example, the temperature difference between the center portion C and the end portion E is not large, but the temperature fluctuates like a wave as it passes across the first slots. Able to know. On the other hand, in the case of the front mold plate for casting according to the experimental example it can be seen that the temperature fluctuates from the central portion (C) toward the end (E) while the large fluctuation of the temperature as in the comparative example does not appear.

This temperature distribution shows that in the casting front mold plate according to the experimental example, the cooling rate at the center thereof is greater than the cooling rate at the end thereof. On the other hand, the temperature distribution for the other half model can be understood to be symmetrical with respect to the center part. Therefore, as described above, the cooling rate at both ends of the front mold plate for casting can be adjusted to be lower than the cooling rate at the center thereof. It is also possible to avoid large fluctuations in temperature. This cooling rate distribution of the unitary casting front mold plate may contribute to the uniformity of the cooling rate distribution in the casting mold 100 as shown in FIG. 4 as described above.

Meanwhile, in the case of the front mold plate 110 according to the present exemplary embodiment as shown in FIGS. 1 and 3, the distance from the bottom of the first slot to the other surface is longer from the center of the one surface 110a to the edge. It is shown. That is, the distance from the bottom surface of the first slot 112 to the other surface 110b is longer than the distance from the bottom surface of the first slot 111 to the other surface 110b, and the other surface (from the bottom surface of the first slot 112). The distance from the bottom of the first slot 113 to the other surface 110b is longer than the distance to 110b. As such, the distance from the bottom to the other surface 110b may be longer as the first slot formed at the edge side. However, the present invention is not limited thereto.

For example, as shown in FIG. 7A showing a casting front mold plate 110 according to another embodiment of the present invention, the first slot 111, the first slot 112, and the first slot 112 ′. ), The distance from the bottom surface of the slot to the other surface 110b is the same, and the distance from the bottom surface of the first slot 113 to the other surface 110b may be longer than this distance. Of course, unlike in FIG. 7A, a slot between the first slot 113 and the first slot 114 may further include a slot having the same distance from the bottom to the other surface 110b as in the case of the first slot 113. have. That is, the distance from the bottom of the first slot 111 located at the center of the one surface 110a of the front mold plate 110 to the other surface 110b is different from the bottom of the first slot 114 located at the edge of the other surface 110b. Shorter than the distance to). In particular, when manufacturing a slab with a thin thickness but a wide slab, such as slabs, the distance from the bottom of the first slots located in the center to the other surface (110b) is constant, but in the case of the first slots located at the edge from the bottom to the other surface (110b) It may be considered that the distance of is longer than the distance from the bottom of the first slots located in the center to the other surface (110b).

Of course, as shown in FIG. 7B, which is a cross-sectional view schematically showing the front mold frame 110 according to another embodiment of the present invention, the distance from the bottom surface of the first slot 111 to the other surface 110b is determined. Various modifications are possible, such as being shorter than the distance from the bottom surface of one slot 112 to the other surface 110b. In any case, the distance from the bottom of the first slot 114 positioned at the edge to the other surface 110b is the other surface 110b at the bottom of one slot of the first slots 111, 112, 112 ′ positioned at the center. Longer distance is enough. The same is true in the following embodiments and modifications.

In the above-mentioned front mold plates according to the above embodiments, the distance between the centers of the adjacent first slots may be constant. In other words, the distance between the bottom surface of the first slot at the edge and the other surface is longer than the distance from the bottom surface of the first slot to the other surface in the state where the distance between the centers of the adjacent first slots is constant. It is possible to make the molten metal in the mold receive a uniform cooling effect on the entire inner surface of the mold having the mold plate.

FIG. 8 is a front view schematically showing the front mold plate 110 for casting according to another embodiment of the present invention. The casting front mold plate 110 according to the present embodiment is different from the casting front mold plate according to the embodiment described above with reference to FIGS. 7A and 7B and further includes a second slot. In FIG. 8, two second slots 117 and 118 are further provided, but may be one or plural. The second slots intersect the first slots 111, 112, 112 ′, 113, 113 ′, 114 and 114 ′, so that the second slots 111, 112, 112 ′, 113, 113 ′, 114. , 114 ') may be formed on one surface 110a.

7A and 7B, in the above-described embodiment, first slots are formed on the front mold plate and second slots are formed on the rear mold plate, so that when the front mold plate and the rear mold plate are joined, the first mold plate is formed. The first slots in the direction of the front mold plate of the first mold and the rear mold plate form the first channels, and the second slots in the direction of the back mold plate of the front mold plate and the second slot of the rear mold plate form the second channel. In the case of the front mold plate 110 according to the present embodiment as illustrated in FIG. 8, the first slots 111, 112, 112 ′, 113 and 113 ′, are formed on one surface 110 a of the front mold plate 110. 114 and 114 'and second slots 117 and 118 are formed. Therefore, even if a slot is not formed in the rear mold plate, the first slots 111, 112, 112 ′, 113, 113 ′, 114 and 114 ′ and the second slots 117 and 118 of the front mold plate 110. The first channels and the second channels are formed together with the surface of the rear mold plate in the direction of the front mold plate 110. Of course, the inlet and outlet of the cooling medium may be formed on the opposite side of the rear mold plate.

In the case of the front mold plate according to the present embodiment, the distance from the bottom surface to the other surface of the first slot 114 located at the edge is one slot among the first slots 111, 112, and 112 ′ positioned at the center. By making the distance from the bottom to the other side of the longer, it is possible to produce a high quality cast when manufacturing the cast through the mold using the same.

According to another embodiment of the present invention, it is possible to implement a mold plate assembly for casting. The casting mold plate assembly may be a form in which the front mold plate and the rear mold plate are combined, for example, any one of the components indicated by reference numerals 131, 132, 133, and 134 in FIG. 4. Such a mold plate assembly for casting according to the present embodiment may be provided with any one of the front mold plates according to the above-described embodiments and modifications thereof. That is, a plurality of first slots arranged in parallel are formed on a surface of the front mold plate in the rear mold plate direction, and a distance from the bottom surface of the first slot positioned at the edge to the other surface thereof is one of the first slots located at the center portion. The distance from the bottom surface of one slot to the other surface may be longer. In this case, when using the mold 100 of the shape as shown in Figure 4 formed by using a plurality of such mold plate assemblies, a solidification shell of a constant thickness without cracks, etc. in the casting process is formed, resulting in high quality Cast steels can be produced in high yields. Here, the other surface of the front mold plate facing the surface in the direction of the rear mold plate may be a surface in contact with the molten metal, and the cooling medium inlet and the outlet may be formed on the other surface of the front mold plate facing the surface of the front mold plate.

Of course, even in this case, the first slots formed on the edge of the casting mold plate assembly may have a longer distance from the bottom surface of the first slot to the other surface, and more specifically, from the center to the edge of the casting mold plate assembly. The distance from the bottom of the first slot to the other surface may be increased. Of course, in a form similar to that shown in FIG. 7A, the first slots may be formed so that the distance from the bottom to the other surface of the first slot is constant at the center part. In any case, the distance from the bottom to the other surface of the first slot at the center part may be By shortening the distance from the bottom of the first slot at the edge to the other surface, the above effects can be obtained.

In the mold mold assemblies for casting according to the embodiments described above so far, the distance between the centers of the adjacent first slots may be constant. That is, such a mold is formed such that the distance from the bottom to the other surface of the first slot at the center is shorter than the distance from the bottom to the other surface of the first slot at the edge while the distance between the centers of the adjacent first slots is constant. It is possible to ensure that the molten metal in the mold receives a uniform cooling effect over the entire inner surface of the mold having the plate assemblies.

On the other hand, in such a mold plate assembly, a second slot intersecting the first slots is further formed on at least one of a surface in the front mold plate direction of the front mold plate and a surface in the front mold plate direction of the rear mold plate. Of course you can. When the front mold plate and the back mold plate as shown in Figs. 1 and 2 are combined to form a mold plate assembly, the first slots are formed on the surface of the front mold plate in the direction of the back mold plate, and the second slot is It is a case where it is formed in the surface in the front mold plate direction of a back mold plate. Of course, both the first slots and the second slots may be formed on the surface of the front mold plate in the direction of the back mold plate.

According to another embodiment of the present invention, it is possible to provide a casting mold including a plurality of mold plate assemblies coupled to define a slab shape. The casting mold may include at least one of the mold plate assemblies according to the above-described embodiments. Of course, the casting mold may include at least one of the casting front mold plates according to the above-described embodiments. This casting mold may be in the form, for example, as shown in FIG. 4.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: casting mold
110: casting front mold plate
111, 112, 112 ', 113, 113', 114, 114 ': first slot
117, 118: second slot
120: casting back mold plate
121, 122, 122 ', 123, 123', 124, 124 ': first slot
127, 128: second slot
129a: inlet
129b: outlet
131, 132, 133, 134: mold plate assembly

Claims (12)

A first surface formed with a plurality of first slots arranged in parallel, the distance from the bottom of the first slot in the center to the other surface, the surface facing the one surface and in contact with the molten metal, at the bottom of the first slot at the edge The front mold plate for casting, characterized in that shorter than the distance to the other surface. The method of claim 1,
The first mold formed on the edge of the one side of the casting front mold plate, characterized in that the longer distance from the bottom surface to the other surface. The method of claim 2,
The front mold plate for casting, characterized in that the distance from the bottom surface of the first slot to the other side is longer from the center portion of the one side to the edge. The method of claim 1,
Casting front mold plate, characterized in that the second slot intersects with the first slot is further formed on the one surface. The method according to any one of claims 1 to 4,
A casting front mold plate according to claim 1, wherein a distance between centers of adjacent first slots is constant. A front mold plate having one surface and the other surface facing the one surface and in contact with the molten metal;
A rear mold plate which is in surface contact with the one surface of the front mold plate,
The first surface of the front mold plate is formed with a plurality of first slots arranged in parallel, the distance from the bottom surface of the first slot in the center portion to the other surface, from the bottom surface of the first slot at the edge to the other surface Moldplate assembly for casting, shorter than distance. The method of claim 6,
The mold plate assembly for casting, characterized in that the distance from the bottom surface of the first slot to the other side toward the edge from the central portion of the one surface is longer. The method according to claim 6 or 7,
And a second slot intersecting the first slots is further formed on the one surface of the front mold plate. The method according to claim 6 or 7,
On the surface of the rear mold plate in the direction of the front mold plate, a mold plate assembly for casting, characterized in that the second slots intersecting with the first slots are formed. The method according to claim 6 or 7,
And a cooling medium inlet and an outlet are formed on a surface of the rear mold plate facing the surface of the front mold plate. The method according to claim 6 or 7,
The mold plate assembly for casting as claimed in claim 1, wherein the distance between the centers of the adjacent first slots is constant. A plurality of moldplate assemblies coupled to define the slab shape,
At least one of the mold plate assemblies comprises a casting mold plate according to any one of claims 1 to 4 or a casting front mold plate assembly according to any one of claims 6 and 7. Casting mold characterized by the above-mentioned.

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