WO2020067714A1 - Casting simulation device and casting simulation method - Google Patents

Abstract

The present invention is a casting simulation device, which can confirm the mixed state of a first liquid material and a second liquid material which are identifiable, and comprises: a first nozzle for discharging the first liquid material into a receptacle; a second nozzle for discharging the second liquid material into the receptacle; and a flow resistance portion which extends in the direction of the alignment of the first nozzle and the second nozzle, is provided inside the receptacle so as to be positioned between a first discharge port and a second discharge port, and has an opening through which the first liquid material discharged from the first discharge port can pass downward. According to the casting simulation device and casting simulation method according to embodiments of the present invention, in casting a double-layered slab by means of a first molten metal and a second molten metal which are composed differently, the mixed state of the first molten metal and the second molten metal can be predicted by perceiving the mixed state of the first liquid material and the second liquid material.

Description

Casting simulating device and casting simulating method

The present invention relates to a casting simulation apparatus and a casting simulation method, and more particularly, to a casting simulation apparatus and a casting simulation method capable of confirming the mixing degree of heterogeneous liquids.

The casting device for manufacturing double-layer cast irons having different compositions between the surface layer and the center part receives the molten steel and initially molds the molten steel into a predetermined shape, first and second nozzles that supply molten steel of different compositions as a mold, and a DC magnetic field within the mold It includes a magnetic field generating portion for generating.

The first and second nozzles are means for supplying molten steel of different components to the mold, and are arranged horizontally and spaced apart from each other. For example, the pair of short sides of the mold are arranged in the direction in which they are arranged to be spaced apart from each other.

In addition, the first nozzle and the second nozzle are provided to have different extension lengths, and the length of the first nozzle for discharging the first molten steel is shorter than that of the second nozzle for discharging the second molten steel. Therefore, the first molten steel is discharged from the upper position of the second molten steel inside the mold.

Hereinafter, a method for manufacturing a composite cast using the above-described casting device will be briefly described.

First, when the first molten steel is supplied to the mold through the first nozzle, the first molten steel solidifies, thereby forming a first solidified shell along the inner wall surface of the mold. Then, the second molten steel is supplied through the second nozzle to the space surrounded by the first solidification shell. Accordingly, the second molten steel supplied from the second nozzle solidifies, and a second solidification shell is formed along the inner wall surface of the first solidification shell. By supplying and solidifying the first molten steel and the second molten steel, castings having a multi-layer structure having different compositions of the surface layer portion and the center portion are cast.

In addition, a boundary region between the first molten steel and the second molten steel exists in the space partitioned by the second solidification shell inside the mold, and is divided into a first molten steel pool and a second molten steel pool based on the boundary region.

On the other hand, at least a portion of the second molten steel discharged through the second nozzle collides with the first solidification shell formed by solidification of the first molten steel, and accordingly at least one of the downstream and upstream flows is formed. Of these, when an upward flow is formed, the molten steel of the second molten steel pool moves to the first molten steel pool, or the molten steel of the first molten steel pool moves to the second molten steel pool, resulting in mixing between the first molten steel and the second molten steel. do. The mixing of the molten steel is a factor that deteriorates the quality of the multilayer cast.

As described above, the presence or absence of mixing between the first molten steel and the second molten steel, the mixing amount, etc. are the casting speed, the injection amount of each of the first molten steel and the second molten steel through the first and second nozzles, and the discharge ports of each of the first and second nozzles It depends on various process parameters, such as the height, the discharge direction of molten steel from the first and second nozzles.

Therefore, prior to casting the multi-layer cast, it is necessary to derive casting conditions that can minimize mixing of the first molten steel and the second molten steel.

(Advanced technical literature)

(Patent Document 1) Japanese Patent Publication No. 1995-314092

The present invention provides a casting simulation apparatus that can confirm the degree of mixing of different liquids.

The present invention is a casting simulation apparatus capable of confirming the mixed state of the identifiable first liquid and the second liquid, a container capable of accommodating the first and second liquids; A first nozzle provided with a first discharge port for discharging a first liquid material into the container; A second nozzle provided to be located below the first discharge port and provided with a second discharge port for discharging a second liquid material into the container; The first nozzle and the second nozzle are formed to extend in the array direction, and are installed inside the container to be positioned between the first discharge port and the second discharge port, and the first liquid discharged from the first discharge port passes downward Includes; flow resistance is provided with an opening that can be.

Each of which is formed to extend so as to intersect the flow resistance portion, and includes a pair of diaphragm portions spaced apart from each other in an array direction of the first nozzle and the second nozzle, and the flow resistance portion to connect between the pair of diaphragm portions Is installed.

The flow resistance portion is provided in plural, and is spaced apart in multiple stages between the pair of diaphragm portions, and among the plurality of flow resistance portions, the top flow resistance portion is located between the first discharge port and the second discharge port, and the bottom of the flow resistance portion. The flow resistance portion of is located below the second nozzle.

The length of the first nozzle is shorter than the length of the second nozzle, and the height of the top of the first nozzle and the height of the top of the second nozzle are the same.

The container has a body having an inner space capable of accommodating the first and second liquids, and the upper and lower bodies are opened; And a discharge unit which is installed to close the lower opening of the body, discharges the first and second liquid substances in the body to the outside, and can control the discharge flow rate of the first and second liquid substances.

The container is installed to close at least a portion of the upper opening of the body, and is formed to extend in the direction in which the first nozzle and the second nozzle are arranged so that the first nozzle and the second nozzle can penetrate in the vertical direction. It includes a holder provided with an opening.

Each of the pair of diaphragm parts is installed so that both ends of the extending direction contact the inner wall surface of the body, and each of the pair of diaphragm parts is spaced apart from the inner wall surface of the body facing in the extending direction.

A fastening groove in which both ends of each of the pair of diaphragms are inserted and fastened is provided on an inner wall surface of the body facing both ends of each of the pair of diaphragms.

The fastening grooves are provided in plural, and are arranged in the alignment direction of the pair of diaphragms.

Fastening grooves recessed inward are provided at both ends of each of the pair of diaphragm parts, and both ends of each of the pair of diaphragm parts are formed on an inner wall surface of the body facing each end of each of the pair of diaphragm parts. A protruding member that can be inserted into the fastening groove provided in the is provided.

A plurality of the protruding members are provided, and are arranged side by side in the array direction of the pair of diaphragm parts.

Each of the pair of diaphragms and a first support member spaced apart from each other and installed to connect the inner wall surface of the container facing each other.

The first support member is positioned at the center of the diaphragm portion in the extending direction, or at both edges of the diaphragm portion in the extending direction.

It is formed extending inward from each of the pair of diaphragm portions, and includes a second support member on which the flow resistance portion is seated.

The second support member is positioned at the center of the diaphragm portion in the extending direction, or at both edges of the diaphragm portion in the extending direction.

The first and second nozzles supply first and second liquid materials to each of the nozzles, and include a liquid material supply unit capable of adjusting a supply flow rate of the first and second liquid materials.

The present invention is a casting simulation method capable of predicting a mixed state of a first molten steel and a second molten steel in a casting operation in which a first molten steel and a second molten steel having different compositions are solidified, and a cast of a multi-layer structure is cast. A first liquid material supplying process of discharging and supplying the liquid material at an upper position of the flow resistance portion located inside the container; A second liquid material supply process for discharging and supplying the first liquid material and the second liquid material identified under the flow resistance part; And a process of predicting a mixed state of the first molten steel and the second molten steel by grasping at least one of the thickness and height of the boundary region between the first liquid and the second liquid.

Some of the first liquids discharged to the upper portion of the flow resistance portion are moved to the lower side of the flow resistance portion through an opening provided in the flow resistance portion, and the rest flows in the extending direction of the flow resistance portion and moves outside of the flow resistance portion do.

When the first liquid material moves outwardly of the flow resistance portion, each of which extends in the vertical direction so as to cross the flow resistance portion, and is spaced apart from the pair of diaphragm portions positioned to be located on both sides of the flow resistance portion. Move.

And discharging the first liquid material and the second liquid material to the lower side of the container.

In supplying the first liquid, the first liquid is discharged using a first nozzle having a first discharge port, and in the supply of the second liquid, a second nozzle having a second discharge port Discharge the second liquid by using,

In grasping at least one of the thickness and height of the boundary region between the first liquid and the second liquid, the discharge flow rates of the first and second liquids through the first and second nozzles, and the first and second nozzles Length, first and second discharge port heights, first and second discharge port shapes, discharge flow rates of the first and second liquids discharged to the lower side of the container, the height of the flow resistance section, and the flow in the vertical direction At least one of the thickness and height of the boundary region between the first liquid material and the second liquid material according to at least one of the number of installations of the resistance part is grasped.

The first liquid material and the second liquid material are different in at least one of saturation, contrast, and temperature.

According to the casting simulation apparatus and the casting simulation method according to an embodiment of the present invention, in the casting of a multi-layer cast using different compositions of the first molten steel and the second molten steel, the mixed state of the first liquid and the second liquid By grasping, the mixed state of the 1st molten steel and the 2nd molten steel can be predicted.

In addition, it minimizes the thickness of the boundary region between the first liquid material and the second liquid material, derives the optimum conditions of the casting simulation apparatus in which the appropriate height of the boundary region is derived, and the casting device and casting operation for casting the multi-layer cast By applying, it is possible to minimize the mixing between the first molten steel and the second molten steel, and to cast a multi-layer cast with improved quality.

1 is a view showing the main parts of a general casting device for casting a cast of a multi-layer structure

Figure 2 is a top view of a general mold for casting a cast of a multi-layer structure viewed from the top

Figure 3 is a top view of a cast piece of a typical multi-layer structure

Figure 4 is a three-dimensional view showing a casting simulation apparatus according to the first embodiment of the present invention

5 is a front view showing a casting simulation apparatus according to a first embodiment of the present invention

Figure 6 is a top view of the casting simulation apparatus according to the first embodiment of the present invention as viewed from above

7 is a top view of the casting simulation apparatus according to the first modification of the first embodiment as viewed from above

8 is a top view of the casting simulation apparatus according to the second modification of the first embodiment as viewed from above

9 is a top view of the casting simulation apparatus according to the third modification of the first embodiment as viewed from above

10 is a top view of the casting simulation apparatus according to the fourth modification of the first embodiment as viewed from above

11 is a top view of the casting simulation apparatus according to the fifth modification of the first embodiment as viewed from above

12 is a top view of the casting simulation apparatus according to the sixth modification of the first embodiment as viewed from above

13 is a top view of the casting simulation apparatus according to the seventh modification of the first embodiment as viewed from above

14 is a front view showing a casting simulation apparatus according to a second embodiment of the present invention

Hereinafter, a method for manufacturing a cast steel and a manufacturing apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and the scope of the invention to those skilled in the art is completely It is provided to inform you.

1 is a view showing a main part of a general casting device for casting a cast of a multi-layer structure. Fig. 2 is a top view of a general mold for casting a cast piece having a multi-layer structure as viewed from above. 3 is a top view of a cast steel in a typical multi-layer structure.

1 and 2, the casting apparatus receives the molten steel, and the mold 10 for initially solidifying the molten steel into a predetermined shape, and the first and second nozzles 20a and 20b for supplying molten steel of different compositions to the mold , Includes a magnetic field generating unit 30 for generating a DC magnetic field in the mold (10).

Further, although not shown, the tundish, which is located on the upper side of the mold 10 and temporarily stores molten steel for supplying to the first and second nozzles 20a and 20b, is provided at the lower portion of the mold 10 It includes a cooling stage in which a plurality of segments are continuously arranged to perform a series of forming operations while cooling the uncoated cast drawn from (10).

The mold 10 receives molten steel from a tundish and initially solidifies the molten steel into a constant shape. The mold 10 may have a rectangular cross-sectional shape, for example. That is, each of the molds 10 is formed to extend in one direction, and a pair of long sides 11, which are spaced apart in a direction intersecting or orthogonal to the extending direction, and each crossing or orthogonal to the long sides 11 It is formed extending, and includes a pair of short sides 12 spaced apart in a direction intersecting or orthogonal to the extending direction. And, inside each of the short side portion 12 and the long side portion 11 of the mold 10 is provided with a flow path for cooling water to cool the molten steel.

Hereinafter, the extending direction of the long side 11 of the mold 10 is defined as an X-axis direction and the extending direction of the short side 12 is defined as a Y-axis direction. Accordingly, the alignment direction of the pair of long sides 11 is the Y-axis direction, and the alignment direction of the pair of short sides 12 is the X-axis direction.

The first and second nozzles 20a and 20b are means for supplying molten steel of different components to the mold 10, and are arranged horizontally and spaced apart from each other. For example, the pair of short sides 12 of the mold are arranged in an array direction or an extension direction of the long sides 11 or a Y-axis direction and are spaced apart from each other.

In addition, the first nozzle 20a and the second nozzle 20b have different heights of the discharge ports through which molten steel is discharged. That is, the height of the discharge port of the first nozzle 20a (hereinafter, the first discharge port 21a) is higher than the height of the discharge port of the second nozzle 20b (hereinafter, the second discharge port 21b). In other words, the height of the second discharge port 21b of the second nozzle 20b is lower than the height of the first discharge port 21a of the first nozzle 20a.

To this end, the first nozzle 20a and the second nozzle 20b may be formed with different lengths, and the extended length of the first nozzle 20a may be shorter than the extended length of the second nozzle 20b, , A discharge port may be provided under each of the first nozzle 20a and the second nozzle 20b. And the upper end of each of the first nozzle 20a and the second nozzle 20b is connected to a tundish located on the upper side of the mold 10, and the upper ends are connected to have the same height. Accordingly, the height of the first discharge port 21a is higher than that of the second discharge port 21b.

Hereinafter, the molten steel supplied to the first nozzle 20a is referred to as the first molten steel M1, and the molten steel supplied to the second nozzle 20b is referred to as the second molten steel M2.

Tundish is a means for supplying the first and second molten steels M1 and M2 to the mold as described above. At this time, since the molten steels of different steel types need to be supplied to the first and second nozzles 20a and 20b, the partition wall is formed so as to divide the interior space in the tundish direction in the direction in which the first nozzle 20a and the second nozzle 20b are arranged. Can be prepared. In addition, in the tundish, the first nozzle 20a may be connected to one space of the partition wall to be communicative, and the second nozzle 20b may be connected to the other space of the partition wall to be communicated.

Hereinafter, a casting method of a multi-layer structure cast by the above-described casting apparatus will be described.

First, when the first molten steel M1 is supplied to the mold 10 through the first nozzle 20a, the first molten steel M1 solidifies to form a solidified shell (hereinafter, the first solidified shell C1). At this time, since the flow path through which the refrigerant flows is buried in the inner wall of the mold 10, the temperature of the inner wall of the mold 10 is the lowest. Therefore, when the first molten steel M1 is supplied, the first solidification shell C1 is formed along the inner wall surface of the mold 10. And, since the first solidification shell (C1) is formed along the inner surface of the mold, a space surrounded by the first solidification shell (C1) is formed, which is the second molten steel (M2) through the second nozzle 20b. Supplies. In other words, the second molten steel M2 discharged from the second nozzle 20b is supplied to fill the space partitioned by the first solidification shell C1. And the second molten steel (M2) supplied from the second nozzle (20b) is solidified to form a solidification shell (hereinafter, the second solidification shell (C2)), the first molten steel (M1) is initially supplied to the first It is formed along the inner wall surface of the solidification shell (C1).

In addition, a boundary surface or a boundary area IF is formed between the first molten steel M1 that is relatively supplied to the upper side of the mold 10 and the second molten steel M2 that is discharged to the relatively lower side, inside the mold 10. It is divided into the first molten steel pool and the second molten steel pool based on (IF).

Here, when the boundary region IF of the first molten steel M1 and the second molten steel M2 is formed, the flow path through which the first molten steel M1 moves and the flow path through which the second molten steel M2 moves are partially different. This is because the volume of the flow path is different, and the first molten steel (M1) supply amount and the second molten steel (M2) supply amount are different.

A portion of the first molten steel M1 discharged from the first nozzle 20a moves to the lower side of the magnetic field generating portion 30, but the rest of the portion is blocked by the magnetic field of the magnetic field generating portion 30 and the magnetic field It moves outward in the extending direction of the generating unit 30. That is, the first molten steel M1 is branched and moves in the lower direction of the magnetic field generating portion 30 and in the outer direction of the magnetic field generating portion 30.

Then, the second molten steel M2 discharged from the second nozzle 20b is discharged to the lower side of the magnetic field generating unit 30, and the discharge amount of the second molten steel M2 is twice or more compared to the discharge amount of the first molten steel M1. to be.

In this way, since at least a portion of the first molten steel M1 moves to the outer region of the magnetic field generating portion 30, and the second molten steel M2 moves all of the lower portion of the magnetic field generating portion 30, the flow path is partially different. .

And, the first molten steel (M1) is moved in the outer direction of the magnetic field generating portion 30, the first solidification shell (C1) is formed on the inner inner wall surface, among the spaces partitioned by the first solidification shell (C1) Since both the first molten steel (M1) and the second molten steel (M2) are supplied to the lower side of the magnetic field generating portion 30, the second molten steel (compared to the amount of the first molten steel (M1) in the lower space of the magnetic field generating portion 30) M2) There is a lot.

Accordingly, an interface or a boundary area IF between the first molten steel M1 and the second molten steel M2 is formed near the magnetic field generator 30 or at a position corresponding to the magnetic field generator 30.

By supplying and solidifying the first molten steel (M1) and the second molten steel (M2), a cast steel of a multi-layer structure having different compositions of the surface layer portion SF and the center portion SC is cast. That is, the surface layer portion SF formed by solidification of the first molten steel M1 and forming an outer shell, and located inside the surface layer SF, includes a central portion SC formed by solidification of the second molten steel M2 The said casting (S) is manufactured.

On the other hand, at least a portion of the first molten steel M1 discharged through the second nozzle 20b collides with the first solidification shell C1 formed by solidification of the first molten steel M1, and thus flows downward and upward. At least one of them is formed. Of these, when an upward flow is formed, the second molten steel M2 of the second molten steel pool moves to the first molten steel pool, or the first molten steel M1 of the first molten steel pool moves to the second molten steel pool, and Mixing between 1 molten steel (M1) and 2nd molten steel (M2) occurs. The mixing of the molten steel is a factor that deteriorates the quality of the multi-layer cast iron (S).

In order to reduce the mixing between the first molten steel and the second molten steel as described above, a magnetic field generator is provided to be located between the first nozzle and the second nozzle outside the mold. The magnetic field generating unit is installed to apply a DC magnetic field having a uniform magnetic flux density distribution along the longitudinal direction (X-axis direction) of the mold in the width direction (Y-axis direction) of the mold. A force is generated in the reverse direction of the upward flow of molten steel inside the mold by the magnetic field applied by the magnetic field generating unit, thereby braking the upward flow of molten steel. Therefore, mixing of the 1st molten steel M1 and the 2nd molten steel M2 by the upward flow of the 2nd molten steel M2 discharged from the 2nd nozzle 20b can be reduced.

The presence or absence of mixing between the first molten steel M1 and the second molten steel M2 as described above, the mixing amount, etc., are the casting speed, the first molten steel M1 and the second molten steel through the first and second nozzles 20a and 20b. (M2) Various process variables, such as the amount of each injection, the height of each discharge port 21a, 21b of the first and second nozzles 20a, 20b, and the discharge direction of molten steel from the first and second nozzles 20a, 20b Depends on. And, the discharge direction of the molten steel from the first and second nozzles 20a and 20b varies depending on the shape and position of the discharge ports 21a and 21b formed in each of the first and second nozzles 20a and 20b.

Therefore, the present invention provides a casting simulation apparatus capable of simulating or simulating casting by applying casting conditions acting as variables in a casting apparatus for casting a multi-layer cast (S). That is, the present invention provides a casting simulation apparatus capable of checking whether the first liquid material and the second liquid material are mixed or not according to the casting conditions.

Hereinafter, a casting simulation apparatus according to a first embodiment of the present invention will be described with reference to FIGS. 4 to 6.

4 is a three-dimensional view showing a casting simulation apparatus according to a first embodiment of the present invention. 5 is a front view showing a casting simulation apparatus according to a first embodiment of the present invention. 6 is a top view of the casting simulation apparatus according to the first embodiment of the present invention as viewed from the top of the container.

4 to 6, the casting simulation apparatus according to the first embodiment of the present invention, the container 1000 having an internal space capable of accommodating liquid, each of which is inserted to penetrate the upper portion of the container 1000 , First and second nozzles (2000a, 2000b) are provided spaced apart from each other so as to be arranged in the horizontal direction of the container 1000, to supply different liquids into the container 1000, each of the vertical direction of the container 1000 And a pair of diaphragm portions 3000a, 3000b, and diaphragm portions 3000a, 3000b, which extend in one horizontal direction and are arranged in a direction intersecting or orthogonal to the extending direction, and extending in a direction intersecting or orthogonal to the diaphragm portions 3000a, 3000b. It is formed and installed to connect between the pair of diaphragm parts 3000a, 3000b, and the discharge port of the first nozzle 2000a (hereinafter, the first discharge port 2210a) and the discharge port of the second nozzle 2000b (hereinafter, the second 2 at least one flow resistance part (4000) located between the discharge ports (2210b)) ).

Here, the first liquid material and the second liquid material may be liquid materials having different colors. For example, the first liquid material (A1) may be red, and the second liquid material (A2) may be blue.

The first liquid material and the second liquid material are not limited to liquid materials having different colors, and various identifiable liquid materials can be applied. For example, in addition to color (saturation), it is possible to apply liquid materials having at least one of contrast and temperature different.

The casting simulating device is located at the lower side of the liquid supply unit 5000 and the container 1000 for supplying the first and second liquid materials A1 and A2 to the first and second nozzles 2000a and 2000b, respectively. It includes a water collecting tank 6000 for temporarily receiving the liquid (A1, A2) discharged from the (1000).

The container 1000 has an internal space capable of accommodating liquids, and is installed on the body 1100 and the body 1100 with openings on the upper and lower sides, respectively, and the first and second nozzles 2000a and 2000b respectively. Discharge and discharge flow rates of the first and second liquid materials (A1, A2) connected to a lower portion of the container (1000) provided with an opening through which the first and second nozzles (2000a, 2000b) are provided to allow mounting. It includes a discharge unit 1300 that can control.

The body 1100 is preferably a shape corresponding to the mold 10 of the casting device, for example, the cross-sectional shape may be rectangular. That is, each of the bodies 1100 is formed to extend in one direction, and a pair of first walls 1110 installed spaced apart in a direction intersecting or orthogonal to the extending direction, each of which intersects or crosses the first wall 1110 It is formed extending in a direction, and includes a pair of second walls 1120 spaced apart in a direction intersecting or orthogonal to the extending direction. At this time, the extension length of the first wall 1110 may be longer than the extension length of the second wall 1120.

Hereinafter, an extension direction of the first wall 1110 is defined as an X-axis direction or a length direction of the body 1100, and an extension direction of the second wall 1120 is defined as a Y-axis direction or a width direction of the body 1100. do. Accordingly, a pair of first walls 1110 are arranged in a spaced apart direction, and a Y-axis direction, and a pair of second walls 1120 are arranged in a spaced apart direction are X-axis directions.

Here, the first wall 1110 may correspond to the long side 11 of the mold 10, and the second wall 1120 may be configured to correspond to the short side 12 of the mold 10.

The upper side of the body 1100 is opened to allow penetration of the first and second nozzles 2000a and 2000b. Of course, the entire body 1100 may be partially open without having the entire upper portion thereof open, and may be sufficient as long as it is formed to extend in the line-up direction of the first nozzle 2000a and the second nozzle 2000b.

In addition, the body 1100 may have a light-transmitting material so as to be able to grasp the internal state from the outside.

The cradle 1200 is installed to cover the upper opening of the body 1100, and is provided with an opening (hereinafter, the mounting opening 1210) to allow the first and second nozzles 2000a and 2000b to penetrate. That is, the mounting opening 1210 of the mounting base 1200 is formed to communicate with the upper opening of the body 1100.

In addition, the mounting opening 1210 is formed such that the positions of each of the first and second nozzles 2000a and 2000b can be changed, as well as through and mounting of the first and second nozzles 2000a and 2000b. That is, the mounting opening 1210 may be formed in a slit shape extending in the direction in which the first nozzle 2000a and the second nozzle 2000b are arranged.

The discharge unit 1300 is a means for discharging the first and second liquid materials A1 and A2 supplied into the body 1100. The discharge unit 1300 is installed to close the lower opening of the body 1100, and has a discharge member 1310 provided with a plurality of discharge holes 1311 through which liquid water can pass, and an internal space for receiving the liquid water. , A receiving member 1320 having a shape in which an upper side where the discharging member 1310 is located is opened, and a discharging port 1330 connected to a lower portion of the receiving member 1320 to discharge liquid material to the outside. In addition, although not shown, a valve installed on the extension path of the discharge port 1330 and a valve capable of controlling communication between the receiving member 1320 and the discharge line and discharge flow rate of the liquid and a flow meter installed on the extension path of the discharge line It may further include.

The discharge member 1310 may be formed to have a shape and area corresponding to the lower opening of the body 1100. In addition, a plurality of discharge holes 1311 are provided so that each penetrates the discharge member 1310 in the thickness (or height) direction, and the plurality of discharge holes 1311 are spaced apart from each other in the extending direction of the discharge member 1310. Is prepared.

The water collecting tank 6000 is positioned to correspond to the lower side of the discharge unit 1300 in a shape having an internal space capable of receiving liquid water, and an upper side in the direction in which the discharge member 1310 is located is opened.

Each of the first and second nozzles 2000a and 2000b is a means for supplying each of the first and second liquid materials A1 and A2 into the container 1000. In addition, the first nozzle 2000a and the second nozzle 2000b are arranged in one horizontal direction of the container 1000 and are spaced apart from each other. For example, it may be arranged in the extending direction of the first wall 1110 having a relatively long length, or in the arraying direction of the pair of second walls 1120 or the longitudinal direction of the container or the X axis direction.

Accordingly, the mounting opening 1210 may be formed to extend in the extending direction of the first wall 1110 or in the direction in which the pair of second walls 1120 are arranged, or in the longitudinal direction or the X axis direction of the container 1000.

The height of the first discharge port 2210a provided in the first nozzle 2000a and the first molten steel M1 is discharged is provided in the second nozzle 2000b and the second discharge port 2210b through which the second molten steel M2 is discharged Compared to the higher position. In other words, the first discharge port 2210a is provided to be positioned closer to the cradle 1200 than the second discharge port 2210b.

To this end, the first nozzle 2000a and the second nozzle 2000b may be formed to have different lengths. The extension length of the first nozzle 2000a is shorter than the extension length of the second nozzle 2000b, and The heights of the upper ends of the first nozzle 2000a and the second nozzle 2000b may be mounted to be the same. Accordingly, the height of the lower end of the first nozzle 2000a is positioned higher than the lower end of the second nozzle 2000b. In addition, each of the first and second discharge ports 2210a and 2210b may be provided at a position of at least one of sidewalls and bottom surfaces of the lower regions of the first and second nozzles 2000a and 2000b. The height of 2210a) is provided to be higher than that of the second discharge port 2210b. Therefore, the first liquid material A1 is discharged to the upper side of the second liquid material A2.

Each of the first and second nozzles 2000a and 2000b has a structure that can be mounted on the upper surface of the cradle 1200 while passing through the cradle opening 1210 in the vertical direction.

More specifically, the first nozzle 2000a is formed extending downward from the first head 2100a and the first head 2100a, which are mountable on the upper surface of the cradle from the upper side of the mounting opening 1210, and the molten steel at the bottom. And a first injection member 2200a provided with the first discharge port 2210a to be discharged. In addition, in each of the first head 2100a and the first injection member 2200a, a space, that is, a passageway, extending in the vertical direction is provided to communicate with each other so that the first liquid A2 flows. In addition, a first discharge port 2210a is provided at a position of at least one of a sidewall and a bottom surface of the lower region of the first injection member 2200a.

Here, the diameter of the first head 2100a is provided to be larger than the length in the width direction of the mounting opening 1210, and the diameter of the first injection member 2200a is smaller than the length in the width direction of the mounting opening 1210. Is prepared. Therefore, the first injection member 2200a of the first nozzle 2000a may penetrate the mounting opening 1210 and be positioned below the mounting table 1200, and the first head 2100a may open the mounting opening 1210. It cannot penetrate and may be supported on the upper portion of the cradle 1200. Due to this structure, the first nozzle 2000a is mounted on the cradle 1200.

The second nozzle 2000b has a similar or identical structure and configuration to the first nozzle 2000a described above. That is, the second nozzle 2000b is formed to extend downward from the second head 2100b and the second head 2100b that can be mounted on the upper surface of the cradle from the upper side of the mounting opening 1210, and the molten steel is discharged to the lower side. 2 includes a second injection member 2200b provided with a discharge port 2210b. In addition, a space extending in the vertical direction, that is, a passage, is provided in each of the second head 2100b and the second injection member 2200b to allow the second liquid A2 to flow therethrough. In addition, a second discharge port 2210b is provided at a position of at least one of a side wall and a bottom surface of the lower region of the second injection member 2200b.

Here, the diameter of the second head 2100b is provided to be larger than the length in the width direction of the mounting opening 1210, and the diameter of the second injection member 2200b is smaller than the length in the width direction of the mounting opening 1210. Is prepared. Therefore, the second injection member 2200b of the second nozzle 2000b may pass through the mounting opening 1210 and be positioned below the mounting table 1200, and the second head 2100b may open the mounting opening 1210. It cannot penetrate and may be supported on the upper portion of the cradle 1200. Due to this structure, the second nozzle 2000b is mounted on the cradle.

The liquid water supply unit 5000 is arranged in one direction from the lower side of the container 1000, the first and second lower water tanks 5100a capable of temporarily receiving the first and second liquid materials A1 and A2, respectively. 5100b), which is located on the upper side of the container 1000 and is arranged in one direction, and is capable of temporarily receiving the first and second liquid materials A2 provided from the first and second lower water tanks 5100a and 5100b. And first and second discharge lines 5300a and 5300b connected to the second upper water tanks 5200a and 5200b, and the first and second lower water tanks 5100a and 5100b, respectively, to discharge the liquid. The first transfer line 5400a formed to be connected to the line 5300a and the other end extending toward the first upper water tank 5200a, one end connected to the second discharge line 5300b and the other end to the second upper water tank 5200b The second transfer line (5400b) formed to extend toward the first connection to the first nozzle (2000a) by connecting the first upper water tank (5200a) and the first nozzle (2000a) The first supply line (5500a) for supplying the upper object (A1), the second upper water tank (5200b) and the second nozzle (2000b) by connecting the second nozzle (2000b) to supply the second liquid (A2) Includes 2 supply lines 5500b.

In addition, the liquid water supply unit 5000 connects the first upper water tank 5200a and the first lower water tank 5100a to connect the first liquid water A1 in the first upper water tank 5200a to the first lower water tank 5100a. The second liquid tank (A2) in the second upper water tank (5200b) by connecting the first recovery line (5600a), the second upper water tank (5200b) and the second lower water tank (5100b) to the second lower water tank ( 5100b), and a second recovery line 5600b.

In addition, the liquid material supply unit 5000 includes first and second discharge lines 5300a, 5300b, first and second transfer lines 5400a, 5400b, first and second supply lines 5500a, 5500b, and first And it may include a valve installed on each extension path of each of the second recovery line (5600a, 5600b).

Each of the first and second lower water tanks 5100a and 5100b may have an open top side. In addition, each of the first and second lower water tanks 5100a and 5100b can discharge each of the first and second liquid materials A1 and A2, respectively, and the first and second discharge lines 5300a and 5300b, respectively. Connected holes, ie outlets, are provided.

Each of the first and second upper water tanks 5200a and 5200b may have an open top side. And the first and second upper water tanks (5200a, 5200b), each of the first and second liquids (A1, A2) can be discharged under each of the first and second supply lines (5500a, 5500b) and respectively Connected holes, ie supply ports, are provided.

In addition, a recovery hole capable of discharging the liquid is provided on the side walls of each of the first and second upper water tanks 5200a and 5200b. That is, the recovery hole is provided to prevent the liquid from overflowing to the outside, and when the liquid is filled up to the height of the recovery hole, the liquid is discharged through the recovery hole, and the lower water tank through the recovery lines 5600a and 5600b. Is recovered.

Each of the pair of diaphragm parts 3000a and 3000b is formed to extend in the vertical direction and one horizontal direction of the body 1100. Here, the direction in which each of the pair of diaphragm portions 3000a and 3000b extends in one horizontal direction is a direction crossing or orthogonal to the direction in which the first nozzle 2000a and the second nozzle 2000b are listed, the width direction of the container, or Y axis direction.

As described above, the first nozzle 2000a and the second nozzle 2000b are in the longitudinal direction of the container 1000 or the extending direction of the first wall 1110 or the separation direction of the pair of second walls 1120. Are placed in line. Accordingly, each of the pair of diaphragm portions 3000a and 3000b is formed to extend in the width direction of the container 1000 or the extension direction of the second wall 1120 or the separation direction of the pair of first wall 1110. In addition, the pair of diaphragm parts 3000a and 3000b are arranged in a direction crossing the extending direction and spaced apart from each other.

The lower ends of the diaphragm portions 3000a and 3000b are formed to extend to the lower end of the body 1100. In other words, the lower ends of the diaphragm portions 3000a and 3000b extend to contact the discharge member 1310 of the container 1000. Is formed. In addition, the upper ends of the diaphragm portions 3000a and 3000b are formed to be extended so that their height is lower than that of the body 1100.

Each of the pair of diaphragm portions 3000a and 3000b as described above is installed inside the container 1000, and both ends of the horizontal extension direction are installed to be connected to the inner wall surface of the container 1000. That is, both ends of the pair of diaphragm portions 3000a and 3000b are installed to be connected to the inner wall surface of the pair of first wall 1110.

In addition, the diaphragm portions 3000a and 3000b are installed on both sides in a direction intersecting or orthogonal to the extending direction, so that one side facing the inner side of the container 1000 is spaced apart from the inner side of the container 1000. do. That is, each of the side surfaces of the diaphragm portions 3000a and 3000b is installed to be spaced apart from the inner surface of the second wall 1120 which is an opposite surface. At this time, the separation distance between the diaphragm portions 3000a and 3000b and the inner surface of the second wall 1120 is set to be smaller than the separation distance between the pair of diaphragm portions 3000a and 3000b. In addition, the separation distance between the pair of diaphragm portions 3000a and 3000b is wider than the separation distance between the first nozzle 2000a and the second nozzle 2000b. In other words, the first nozzle 2000a and the second nozzle 2000b are positioned between the pair of diaphragms 3000a and 3000b.

Here, the space between the diaphragm portions 3000a and 3000b and the inner wall surface of the second wall 1120 becomes a flow path through which the first liquid material A1 discharged from the first nozzle 2000a located on the upper side flows. In addition, the space between the pair of diaphragm parts 3000a and 3000b is discharged from the first liquid material A1 discharged from the first nozzle 2000a located on the upper side and from the second nozzle 2000b located on the lower side. The second liquid material (A2) becomes a space in which flow or accommodation.

Here, the space between the diaphragm portions 3000a and 3000b and the inner wall surface of the second wall 1120 is a region in which the first molten steel M1 solidifies within the mold 10 of the casting apparatus or the first solidification shell C1. It corresponds to the area where it is formed. In addition, the lower space of the second nozzle 2000b between the pair of diaphragms 3000a and 3000b is a region in which the second molten steel M2 solidifies within the mold 10 of the casting apparatus or the second solidification shell C2. ) Corresponds to the region where it is formed.

Each of the pair of diaphragm parts 3000a and 3000b according to the first embodiment is provided as one integral type. However, the present invention is not limited thereto, and may be provided in a plurality and installed to be stacked in multiple stages.

The flow resistance unit 4000 is a means for preventing or preventing the movement of the first liquid material A1, or a means for reducing the mixing of the first liquid material A1 and the second liquid material A2.

The flow resistance unit 4000 is formed to extend in the direction in which the first nozzle 2000a and the second nozzle 2000b are arranged, and is installed to connect between the pair of diaphragm portions 3000a and 3000b. In addition, the flow resistance unit 4000 divides the space between the pair of diaphragm portions 3000a and 3000b in the vertical direction, so that the first discharge port 2210a and the second nozzle 2000b of the first nozzle 2000a are divided. It is installed so as to be located between the second discharge port (2210b). More preferably, it is installed to be positioned between the lower end of the first nozzle 2000a and the lower end of the second nozzle 2000b.

As described above, since the flow resistance unit 4000 should be positioned between the first discharge port 2210a and the second discharge port 2210b, the lower portion of the second nozzle 2000b is installed to penetrate the flow resistance unit 4000. . To this end, the flow resistance unit 4000 is provided with a through-hole through which the second nozzle 2000b, more specifically, the second injection member 2200b can be penetrated.

In addition, the flow resistance unit 4000 is provided with a plurality of openings 4100 so that the first liquid A1 discharged to the upper side can move downward. That is, each of the plurality of openings 4100 is formed to penetrate in the thickness direction of the flow resistance portion 4000, and is arranged to be spaced apart from each other in the extension direction of the flow resistance portion 4000.

Here, the opening 4100 of the flow resistance part 4000 is mixed between the first liquid material A1 and the second liquid material A2 at the lower side thereof, the first liquid material A1 and the second liquid material A2 ) In order to check the position of the boundary region IF and the degree of mixing, the first liquid material A1 is allowed to pass through.

As described above, the flow resistance part 4000 passes at least a portion of the first liquid material A1 discharged from the first nozzle 2000a downwardly, and partly blocks its movement to block the diaphragm parts 3000a and 3000b. It acts as a resistor so that it can flow outwards.

That is, a part of the first liquid (A1) discharged from the first nozzle (2000a) passes through the opening (4100) provided in the flow resistance unit 4000 is moved to the lower side of the flow resistance unit 4000, another Some of the movement is blocked by the upper surface of the flow resistance unit 4000. And the first liquid (A1) whose movement is blocked by the flow resistance unit 4000 flows outwardly of the flow resistance unit 4000, and then the diaphragm parts 3000a, 3000b and the second wall 1120. Is moved to the space between the inner walls of the.

In this way, since the flow resistance portion 4000 prevents or blocks at least a portion of the first liquid material A1 from being supplied to the space between the pair of diaphragm portions 3000a and 3000b, the flow resistance portion 4000 is different. In other words, it acts as a component that reduces the mixing of the first liquid material (A1) and the second liquid material (A2).

On the other hand, in the casting apparatus for casting the multi-layer cast piece S, the magnetic field generating portion 30 provided on the outside of the mold 10 is a component that reduces the mixing of the first liquid and the second liquid. Therefore, in the casting simulation apparatus according to the first embodiment, the flow resistance section 4000 is a component corresponding to the magnetic field generating section 30 of the casting apparatus.

In addition, as described above, the first liquid (A1) discharged from the first nozzle (2000a) located on the upper side of the flow resistance section (4000) is an opening (4100) provided in the flow resistance section (4000) Since it moves to the lower side and the second discharge port 2210b of the second nozzle 2000b is located below the flow resistance portion 4000, it is discharged directly to the lower side of the flow resistance portion 4000. In this way, since both the first liquid material A1 and the second liquid material A2 are supplied to the lower side of the flow resistance part 4000, the flow resistance part 4000 is provided between the pair of diaphragm parts 3000a and 3000b. In the lower space, both the first liquid material A1 and the second liquid material A2 are accommodated.

Accordingly, a boundary region IF between the first liquid material A1 and the second molten material A2 is formed in the vertical direction in the lower space of the flow resistance unit 4000.

Here, since the first liquid (A1) and the second liquid (A2) have different colors, it is possible to identify the first liquid (A1), the second liquid (A2), and the boundary area (IF) Do.

Of course, the first liquid material and the second liquid material may be provided so that at least one of contrast and temperature is different from the color. In this case, when the first liquid material and the second liquid material have different contrasts, the first liquid material, the second liquid material, and the boundary region can be identified through contrast.

In addition, when the temperature of the first liquid material and the second liquid material are different, the first liquid material, the second liquid material, and the boundary region can be identified through temperature, for example, through an image or image captured by a thermal imaging camera. Identification is possible.

Here, the boundary region IF between the first molten material A1 and the second molten material A2 is formed by moving the flow path and the second molten material A2 through which the first molten material A1 moves. This is because the flow path is partially different, the volume of the flow path is different, and the first molten material (A1) supply amount and the second molten material (A2) supply amount are different.

A portion of the first molten material A1 discharged from the first nozzle 2000a moves to the lower side of the flow resistance portion 4000, but the rest of the flow is blocked by the flow resistance portion 4000 and thus flow resistance It moves outward in the extending direction of the part 4000. That is, the first molten material A1 is branched and moves in the lower direction of the flow resistance portion 4000 and outward direction of the flow resistance portion 4000.

In addition, the second liquid material A2 discharged from the second nozzle 2000b is discharged to the lower side of the flow resistance part 4000, and the discharge amount of the second liquid material A2 compared to the discharge amount of the first liquid material A1 2 times or more.

In this way, at least a portion of the first liquid material A1 moves to the outer region of the flow resistance unit 4000, and the second liquid material A2 moves all to the lower side of the flow resistance unit 4000, so that the flow path is Some are different.

In addition, since both the first liquid material A1 and the second liquid material A2 are supplied to the lower side of the flow resistance unit 4000, the amount of the first liquid material A1 is in the lower space of the flow resistance unit 4000. Compared, the amount of the second liquid (A2) is large.

Therefore, an interface or a boundary region IF between the first liquid material A1 and the second liquid material A2 is formed below the flow resistance part 4000.

The boundary region IF has a smaller thickness as the amount of mixing between the first liquid material A1 and the second liquid material A2 decreases, and conversely, the mixing amount between the first liquid material A1 and the second liquid material A2. The more, the thicker it is.

The thickness of the boundary region and its position may vary depending on the height of the flow resistance unit 4000. Accordingly, the thickness of the boundary region IF of the first liquid material A1 and the second liquid material A2 according to the height of the flow resistance portion 4000 of the casting simulation apparatus, and the position (or height) of the boundary region IF ) By grasping or analyzing, the thickness of the boundary region IF of the first molten steel M1 and the second molten steel M2 according to the height of the magnetic field generating unit 30 of the casting apparatus, and the vertical direction of the boundary region IF You can predict the position change in.

In addition, the thickness of the boundary region IF and the position in the vertical direction of the boundary region IF are respectively discharged of the first and second liquid materials A1 and A2 through the first and second nozzles 2000a and 2000b. Flow rate, length of first and second nozzles 2000a and 2000b, height of first and second outlets 2210a and 2210b, shape of first outlet 2222a and second outlet 2222b and container 1000 It depends on at least one of the discharge flow rates of the first and second liquid materials A1 and A2 discharged downward and the height of the flow resistance unit 4000.

Here, the first and second nozzles 2000a and 2000b of the casting simulation apparatus have a configuration corresponding to the first and second nozzles 20a and 20b of the casting apparatus for casting the cast pieces of the multi-layer structure.

Thus, the discharge flow rates of the first and second liquid materials A1 and A2 from the first and second nozzles 2000a and 2000b of the casting simulation apparatus, the lengths of the first and second nozzles 2000a and 2000b, The height of the first and second discharge ports 2210a, 2210b, the boundary area IF of the first liquid material A1 and the second liquid material A2 according to the shapes of the first and second discharge ports 2210a, 2210b The discharge flow rate of the first and second molten steels M1 and M2 from the first and second nozzles 20a and 20b of the casting apparatus by grasping or analyzing the thickness and the position (or height) of the boundary region IF, The first molten steel (M1) according to the length of the first and second nozzles (20a, 20b), the height of the first and second outlets (21a, 21b), the shape of the first and second outlets (21a, 21b) The thickness of the boundary region IF of the second molten steel M2 and the position change in the vertical direction of the boundary region IF can be predicted.

In addition, the discharge flow rates of the first and second liquid materials A1 and A2 discharged to the outside of the container 1000 through the discharge unit 1300 of the casting simulation apparatus are cast during casting of the multi-layered structure S using the casting device On the lower side of the mold 10 is a condition corresponding to the speed at which the cast steel is drawn.

Accordingly, the boundary area between the first liquid material A1 and the second liquid material A2 according to the discharge flow rates of the first and second liquid materials A1 and A2 discharged to the lower side of the container 1000 of the casting simulation apparatus ( The first molten steel M1 and the second molten steel according to the drawing speed of the cast iron S from the mold 10 of the casting apparatus by grasping or analyzing the thickness of the IF and the position in the vertical direction of the boundary region IF The thickness of the boundary region IF of M2) and the position change in the vertical direction of the boundary region IF can be predicted.

Therefore, through several simulations using the casting simulation apparatus as described above, it is possible to derive conditions that can minimize mixing between the first liquid material (A1) and the second liquid material (A2). That is, the first and second liquids A1 and A2 from the first and second nozzles 2000a and 2000b that can minimize mixing between the first liquid A1 and the second liquid A2. Discharge flow rate, length of first and second nozzles 2000a and 2000b, height of first and second discharge ports 2210a and 2210b, shape of first and second discharge ports 2210a and 2210b, magnetic field generating unit 30 ) Can derive at least one of the heights.

And, by applying it to the construction or casting of the casting device for casting the cast iron (S) of the multi-layer structure, it is possible to minimize the mixing between the first molten steel (M1) and the second molten steel (M2).

7 is a top view of the casting simulation apparatus according to the first modification of the first embodiment as viewed from above. 8 is a top view of the casting simulation apparatus according to the second modification of the first embodiment as viewed from above. 9 is a top view of the casting simulation apparatus according to the third modification of the first embodiment as viewed from above. 10 is a top view of the casting simulation apparatus according to the fourth modification of the first embodiment as viewed from above. 11 is a top view of the casting simulation apparatus according to the fifth modification of the first embodiment as viewed from above. 12 is a top view of the casting simulation apparatus according to the sixth modification of the first embodiment as viewed from above. 13 is a top view of the casting simulation apparatus according to the seventh modification of the first embodiment as viewed from above.

The diaphragm portions 3000a and 3000b according to the above-described first embodiment have both ends in the extending direction as shown in FIG. 6 as a more specific example of the inner surface of the body 1100 on the inner surface of the first wall 1110. It is installed to be connected.

However, the present invention is not limited thereto, and each end of each of the diaphragm portions 3000a and 3000b is inserted into and fastened to the inner surface of the body 1100 as in the first modified example of the first embodiment shown in FIG. 7. You can. To this end, a groove recessed in the inner direction (hereinafter, a fastening groove 1111) may be provided on the inner surface of the body 1100, and more specifically, on each inner surface of the pair of first wall 1110. In addition, both ends of the diaphragm portions 3000a and 3000b may be installed to be inserted into the fastening groove 1111.

The fastening groove 1111 may be provided in plural such that the first nozzles 2000a and the second nozzles 2000b are arranged in the alignment direction. In addition, the diaphragm portions 3000a and 3000b can be separated, released, and fastened from the body 1100, and the diaphragm portions 3000a and 3000b are fastened to any one of a plurality of fastening grooves 1111. , 3000b).

In addition, the diaphragm portion and the body 1100 may be fastened to each other in a structure opposite to the first modification. That is, as in the second modified example of the first embodiment shown in FIG. 8, the inner surface of the body 1100, more specifically, the inside of the body 1100 from the inner surface of each pair of first walls 1110 Protruding members 1112 are formed to extend toward the space, and grooves (hereinafter, fastening grooves 3100a, 3100b) capable of inserting protruding members 1112 are provided at both ends of the diaphragm portions 3000a and 3000b. You can.

The protruding member 1112 may be provided in plural such that the first nozzles 2000a and the second nozzles 2000b are arranged in the alignment direction. Accordingly, the position of each of the pair of diaphragm portions 3000a and 3000b in the body 1100 may be adjusted.

The diaphragm portions 3000a and 3000b according to the above-described first embodiment, first and second modified examples are supported by being connected to the inner surfaces of the first wall 1110 with both ends of the extending direction facing them. Structure.

However, the present invention is not limited thereto, and as in the third modified example of the first embodiment illustrated in FIG. 9, the container (of one side surface and the other side surface, which are both side surfaces in the direction intersecting or orthogonal to the extending direction of the diaphragm portions 3000a and 3000b) A support member (hereinafter, first support members 3200a, 3200b) for supporting the diaphragm parts 3000a, 3000b is installed between one side facing the inner surface of the 1000 and the second wall 1120 facing it. You can.

More specifically, the first support members 3200a and 3200b are located at the center of the diaphragm portions 3000a and 3000b in an extended direction, and the inner surfaces of the one side surface and the second wall 1120 of the diaphragm portions 3000a and 3000b are formed. It can be installed to connect. Accordingly, the diaphragm portions 3000a and 3000b are more firmly supported on the body 1100, thereby increasing the resistance according to the molten material supply compared to the first embodiment.

In the third modified example, the first support members 3200a and 3200b have been described as being positioned at the center of the diaphragm portions 3000a and 3000b, but the present invention is not limited thereto, and the fourth modified example shown in FIG. 10 and FIG. 13 As shown in the seventh modification example, the diaphragm portions 3000a and 3000b may be provided to be positioned at both edges in the extending direction.

In the above-described first embodiment and the first to fourth modified examples, the flow resistance part 4000 is supported on the upper ends of the diaphragm parts 3000a and 3000b, or is installed to be connected to the other side surface of the diaphragm parts 3000a and 3000b. . However, the present invention is not limited thereto, and a separate support member ( second support members 3300a and 3300b) for supporting the flow resistance unit 4000 may be mounted on the diaphragm parts 3000a and 3000b.

For example, as in the fifth modified example illustrated in FIG. 11, second support members 3300a and 3300b may be mounted on the other side of the diaphragm parts 3000a and 3000b, and the second support members 3300a and 3300b The flow resistance unit 4000 is seated or mounted on the upper portion. Here, it is effective that the second support members 3300a and 3300b are installed to face the first support members 3200a and 3200b.

In the fifth modified example, the second support members 3300a and 3300b have been described as being positioned at the center of the diaphragm portions 3000a and 3000b, but the present invention is not limited thereto, and the sixth and sixth shown in FIGS. 12 and 13 7 may be provided to be located on both edges in the extending direction of the diaphragm portions 3000a and 3000b as in the modified example.

14 is a front view showing a casting simulation apparatus according to a second embodiment of the present invention.

In the first embodiment described above, one flow resistance unit 4000 is provided between the pair of diaphragm portions 3000a and 3000b. However, the present invention is not limited thereto, and as in the second embodiment illustrated in FIG. 14, two or more flow resistance units may be provided to be spaced apart in the vertical direction.

Hereinafter, the flow resistance part positioned relatively upward is referred to as a first flow resistance part 4000a and a flow resistance part positioned relatively lower is referred to as a second flow resistance part 4000b.

The first flow resistance unit 4000a is positioned between the first discharge port 2210a of the first nozzle 2000a and the second discharge port 2210b of the second nozzle 2000b, as in the first embodiment. In addition, the second flow resistance unit 4000b is positioned below the second nozzle 2000b. Accordingly, a space between the first flow resistance portion 4000a and the second flow resistance portion 4000b is provided in the space between the pair of diaphragm portions 3000a and 3000b.

According to this modification, at least a portion of the first liquid material A1 and the second liquid material A2 moved to the lower side of the first flow resistance unit 4000a are moved by the second flow resistance unit 4000b. It is blocked.

Accordingly, the boundary area IF between the first liquid material A1 and the second liquid material A2 is lower than the first flow resistance part 4000a (corresponding to the flow resistance part of the first embodiment) compared to the first embodiment. ) Can be more clearly distinguished. Therefore, according to the second embodiment, there is an advantage in that it is easier to check the boundary region position and thickness of the first liquid material A1 and the second liquid material A2, compared to the first embodiment.

The above-described first embodiment, first to seventh modification examples and second embodiment can be modified in various combinations.

Hereinafter, with reference to FIGS. 4 to 6, the process of grasping the mixing and mixing degree of the first liquid material and the second liquid material by using the casting simulation apparatus according to the first embodiment of the present invention will be described.

First, a first liquid material A1 and a second liquid material A2 having different colors are prepared. At this time, the first liquid material (A1) may be red (red), and the second liquid material (A2) may be blue (blue).

Then, each of the first and second liquid materials A1 and A2 is supplied into the container 1000.

More specifically, first, the first liquid water A1 in the first lower water tank 5100a is discharged to the outside through the first discharge line 5300a, and then the first upper water tank through the first transfer line 5400a. (5200a). The first liquid (A1) supplied into the first upper water tank (5200a) is transferred to the first nozzle (2000a) through the first supply line (5500a), and then the container (1000) through the first nozzle (2000a) ) It is discharged inside.

In addition, when the second liquid (A2) in the second lower water tank (5100b) is discharged to the outside through the second discharge line (5300b), the second liquid (A2) is removed through the second transfer line (5400b). 2 It is supplied to the upper water tank (5200b). The second liquid water A2 supplied into the second upper water tank 5200b is transferred to the second nozzle 2000b through the second supply line 5500b, and then the container 1000 through the second nozzle 2000b. ) It is discharged inside.

Part of the first liquid (A1) discharged to the first discharge port (2210a) of the first nozzle (2000a) is moved downward through a plurality of openings (4100) provided in the flow resistance unit (4000), and the rest flows The movement is blocked by the upper surface of the resistance unit 4000. Accordingly, a part of the first liquid (A1) flows in an outer direction of the flow resistance part 4000 and moves to a space spaced between the diaphragm parts 3000a and 3000b and the second wall 1120.

In addition, since the second discharge port 2210b of the second nozzle 2000b is located below the flow resistance portion 4000, all of the second liquid material A2 is supplied to the bottom side of the flow resistance portion 4000.

Accordingly, in the space between the pair of diaphragm parts 3000a and 3000b, both the first liquid material A1 and the second liquid material A2 are accommodated in the lower space of the flow resistance part 4000. Then, a boundary region between the first liquid material A1 and the second liquid material A2 is formed below the flow resistance part 4000.

At this time, since the container 1000 is translucent, and the first liquid material A1 and the second liquid material A2 have different colors, an operator can visually check the internal state from the outside of the container 1000. have. The operator checks the position of the boundary region between the first liquid substance A1 and the second liquid substance A2 and the thickness of the boundary region.

At this time, the position of the boundary area IF and the thickness of the boundary area IF are the discharge flow rates of the first and second liquid materials A1 and A2 through the first and second nozzles 2000a and 2000b, and The lengths of the second nozzles 2000a, 2000b, the heights of the first discharge ports 2210a and the second discharge ports 2210b, the shapes of the first discharge ports 2210a and the second discharge ports 2210b, and downwards of the container 1000 It depends on the discharge flow rate of the first and second liquid substances A1 and A2 discharged, the height of the flow resistance portion 4000, and the number of flow resistance portions 4000.

Therefore, the operator, during the experiment using the casting simulation apparatus, the discharge flow rates of the first and second liquid materials A1 and A2 through the first and second nozzles 2000a and 2000b, and the first and second nozzles 2000a , 2000b), the height of the first and second outlets 2210a, 2210b, the shape of the first and second outlets 2210a, 2210b, the first and second liquids discharged to the lower side of the container 1000 The conditions of at least one of the discharge flow rate of (A1, A2), the height of the flow resistance section 4000, and the number of flow resistance sections 4000 are varied, and the position and boundary of the boundary area IF according to each of the variable conditions Check the thickness of the area IF.

Then, a condition that the position of the boundary area IF is appropriate and the thickness of the boundary area IF can be minimized is derived. That is, the position of the boundary area IF is appropriate, and the first and second liquid materials A1 and A2 through the first and second nozzles 2000a and 2000b capable of minimizing the thickness of the boundary area IF Discharge flow rate, the lengths of the first and second nozzles 2000a and 2000b, the heights of the first and second discharge ports 2210a and 2210b, the shape of the first and second discharge ports 2210a and 2210b, and the container 1000 The optimum conditions for the discharge flow rates of the first and second liquid substances A1 and A2 discharged to the lower side, the height of the flow resistance section 4000 and the number of flow resistance sections 4000 are derived.

Thereafter, these optimum conditions can be applied at the time of casting operation using the casting device for casting the multi-layer cast (S).

More specifically, the optimum conditions of the casting simulation apparatus are the discharge flow rates of the first and second molten steels M1 and M2 through the first and second nozzles 20a and 20b of the casting apparatus, and the first and second nozzles 20a , 20b), the height of the first and second discharge ports 21a, 21b, the shape of the first and second discharge ports 21a, 21b, the drawing speed of the cast piece S, and the height of the magnetic field generating section 30 , It is applied to at least one of the height of the magnetic field generating unit 30.

Accordingly, casting may be performed to minimize mixing between the first molten steel M1 and the second molten steel M2, thereby reducing or minimizing defects due to mixing between the first molten steel M1 and the second molten steel M2. Cast double-layer cast iron can be cast.

According to the casting simulation apparatus and the casting simulation method according to an embodiment of the present invention, in the casting of a multi-layer cast using different compositions of the first molten steel and the second molten steel, the mixed state of the first liquid and the second liquid By grasping, the mixed state of the 1st molten steel and the 2nd molten steel can be predicted.

Claims (22)

1. A casting simulation apparatus capable of confirming the mixing state of the identifiable first liquid substance and the second liquid substance,

   A container capable of accommodating the first and second liquids;

   A first nozzle provided with a first discharge port for discharging a first liquid material into the container;

   A second nozzle provided to be located below the first discharge port and provided with a second discharge port for discharging a second liquid material into the container;

   The first nozzle and the second nozzle are formed to extend in the array direction, and are installed inside the container to be positioned between the first discharge port and the second discharge port, and the first liquid discharged from the first discharge port passes downward A flow resistance unit provided with an opening capable of;

   Casting simulation apparatus comprising a.
2. The method according to claim 1,

   Each of which is formed to extend so as to intersect the flow resistance portion, and includes a pair of diaphragm portions spaced apart from each other in the array direction of the first nozzle and the second nozzle,

   A casting simulation apparatus installed such that the flow resistance portion connects between the pair of diaphragm portions.
3. The method according to claim 2,

   The flow resistance part is provided in plural, and is spaced apart in multiple stages between the pair of diaphragm parts,

   The casting simulation apparatus of the plurality of flow resistance portions, the top flow resistance portion is located between the first discharge port and the second discharge port, and the bottom flow resistance portion is located below the second nozzle.
4. The method according to claim 2,

   The length of the first nozzle is shorter than the length of the second nozzle,

   Casting simulation apparatus installed so that the height of the upper end of the first nozzle and the height of the upper end of the second nozzle are the same.
5. The method according to claim 2,

   The container,

   A body having an inner space capable of accommodating the first and second liquids and having an upper side and a lower side opened; And

   A discharge unit which is installed to close the lower opening of the body, discharges the first and second liquid substances in the body to the outside, and controls the discharge flow rates of the first and second liquid substances;

   Casting simulation apparatus comprising a.
6. The method according to claim 5,

   The container is installed to close at least a portion of the upper opening of the body, and is formed to extend in the direction in which the first nozzle and the second nozzle are arranged so that the first nozzle and the second nozzle can penetrate in the vertical direction. Casting simulation apparatus comprising a holder provided with an opening.
7. The method according to claim 2,

   Each of the pair of diaphragm portions has both ends thereof extending in contact with the inner wall surface of the body,

   Each of the pair of diaphragm portions is a casting simulation apparatus installed to be spaced apart from the inner wall surface of the body facing in the extending direction.
8. The method according to claim 2,

   A casting simulation apparatus provided with fastening grooves in which both ends of each of the pair of diaphragms are inserted and fastened to the inner wall surface of the body facing both ends of each of the pair of diaphragms.
9. The method according to claim 8,

   The fastening grooves are provided in plural, and the casting simulation apparatus arranged in the direction in which the pair of diaphragms are arranged.
10. The method according to claim 2,

    Fastening grooves recessed inward are provided at both ends of each of the pair of diaphragms,

    A casting simulation apparatus provided with a protruding member insertable into a fastening groove provided at both ends of each of the pair of diaphragms on an inner wall surface of the body facing both ends of each of the pair of diaphragms.
11. The method according to claim 10,

    The protruding member is provided in plural, and the casting simulation apparatus arranged in the direction in which the pair of diaphragms are arranged.
12. The method according to claim 7,

    Each of the pair of diaphragm parts and a casting simulation apparatus comprising a first support member which is installed to connect the inner wall surface of the container spaced apart from each other.
13. The method according to claim 12,

    The first support member is located in the center of the diaphragm portion in the extending direction, or the casting simulating device is located on both edges of the diaphragm portion in the extending direction.
14. The method according to claim 7,

    A casting simulation apparatus including a second support member formed inwardly extending from each of the pair of diaphragm portions and having the flow resistance portion mounted thereon.
15. The method according to claim 14,

    The second support member is located in the center of the diaphragm portion in the extending direction, or the casting simulating device is located on both edges of the diaphragm portion in the extending direction.
16. The method according to any one of claims 1 to 15,

    A casting simulation apparatus including a liquid material supply unit that supplies first and second liquid materials to each of the first and second nozzles, and that can control a supply flow rate of the first and second liquid materials.
17. In a casting operation in which a first molten steel and a second molten steel having different compositions are solidified to cast a cast steel of a multi-layer structure, a casting simulation method capable of predicting a mixed state of the first molten steel and the second molten steel,

    A first liquid material supplying process of discharging and supplying the first liquid material at an upper position of the flow resistance portion located inside the container;

    A second liquid material supply process for discharging and supplying the first liquid material and the second liquid material identified under the flow resistance part; And

    A process of predicting a mixed state of the first molten steel and the second molten steel by grasping at least one of the thickness and height of the boundary region between the first liquid and the second liquid;

    Casting simulation method comprising a.
18. The method according to claim 17,

    Some of the first liquids discharged to the upper portion of the flow resistance portion are moved to the lower side of the flow resistance portion through the opening provided in the flow resistance portion, and the rest flows in the extending direction of the flow resistance portion to move outside of the flow resistance portion Casting simulation method to do.
19. The method according to claim 18,

    In the first liquid to move to the outside of the flow resistance portion,

    Casting simulation method that moves to the outside of the pair of diaphragm portions are formed to extend in the vertical direction so that each intersects the flow resistance portion, spaced apart on both sides of the flow resistance portion.
20. The method according to claim 17,

    Casting simulative method comprising the step of discharging the first liquid and the second liquid to the lower side of the container.
21. The method according to claim 20,

    In supplying the first liquid, the first liquid is discharged using a first nozzle having a first discharge port,

    In supplying the second liquid, the second liquid is discharged using a second nozzle having a second discharge port,

    In grasping at least one of the thickness and height of the boundary region between the first liquid and the second liquid,

    Discharge flow rates of first and second liquids through the first and second nozzles, lengths of first and second nozzles, heights of first and second discharge ports, shapes of first and second discharge ports, and lower side of the container The thickness of the boundary area between the first liquid and the second liquid according to at least one of the discharge flow rate of the first and second liquids discharged to the height, the height of the flow resistance portion, and the number of installations of the flow resistance portion in the vertical direction, and Casting simulation method to identify at least one of the heights.
22. The method according to any one of claims 17 to 20,

    The first liquid phase and the second liquid phase is a casting simulation method in which at least one of saturation, contrast, and temperature is different.

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