Control and regulation device for split mold in large-scale aluminum casting

Abstract

The objective of the present invention is to enable the casting of large materials using existing equipment by manufacturing a large aluminum casting mold with a segmented structure, and to improve the quality of the casting by applying independent cooling and temperature control systems to each segmented mold. In accordance with the above purpose, the present invention provides a large material casting mold in a 2-part or 4-part structure, and each part mold is equipped with an independent cooling / temperature control line.

Description

Technology Field

[0001] The present invention relates to the configuration of a split mold for large-scale aluminum casting and a control and adjustment device thereof. Background Technology

[0002] In large-scale aluminum casting processes, large-scale molds are essential. However, as mold size increases, the scale of manufacturing equipment must also expand, requiring massive investment costs. Previously, single molds were manufactured and used, but this led to quality degradation due to difficulties in cooling and temperature control during the casting of large materials. Particularly in semi-solid casting methods, mold temperature uniformity and cooling efficiency directly affect the mechanical properties of the product.

[0003] US 2020 / 0038946 A1 discloses a configuration that divides the mold into layers. However, this configuration still retains the difficulty of machining large molds. The problem to be solved

[0004] The objective of the present invention is to enable the casting of large materials using existing equipment by manufacturing a large aluminum casting mold with a segmented structure, and to improve the quality of the casting by applying independent cooling and temperature control systems to each segmented mold.

[0005] In addition, the goal is to increase production efficiency by providing a structure that facilitates mold maintenance and replacement. means of solving the problem

[0006] In accordance with the above purpose, the present invention provides a large material casting mold in a 2-part or 4-part structure.

[0007] In addition, the present invention secures optimal casting conditions by varying the number of divisions in the movable and fixed molds.

[0008] In the above, each split mold is characterized by having an independent cooling / temperature control line to enable individual temperature control.

[0009] In the above, it is characterized by inserting an insert-type cooling channel into each split mold to enable concentrated cooling of a specific area.

[0010] In the above, the invention is characterized by configuring a manifold capable of integrated control of the entire line, thereby enabling integrated control of the entire line in which the divided molds are integrated, while also allowing for individual maintenance of the divided molds.

[0011] In the above, the back surface of the mold is characterized by having a pattern groove formed therein to minimize thermal insulation and thermal expansion errors through the air layer.

[0012] In the above, it is characterized by the fact that grooves are also formed on the sides of the mold to minimize thermal insulation and thermal expansion errors.

[0013] In the above, the spreader and sleeve constituting the molten metal injection part are manufactured separately and configured to be replaceable, characterized in that replacement can be easily performed in the event of damage to the molten metal injection part. Effects of the invention

[0015] According to the present invention, the responsiveness to casting large materials is improved.

[0016] By manufacturing the mold with a segmented structure, it is possible to cast large aluminum materials using existing equipment.

[0017] Economic feasibility can be ensured as large molds can be manufactured without the need for separate investment in extra-large processing equipment.

[0018] Precise temperature control is possible by installing independent cooling and temperature control lines in each split mold. Accordingly, it meets the uniform cooling conditions required for semi-solid casting, thereby improving the mechanical properties of the material and enhancing casting quality.

[0019] In addition, the spreader and sleeve are manufactured separately and configured to be replaceable, making it easy to replace them in the event of damage to the molten metal injection section.

[0020] In addition, efficiency is increased during maintenance through full line control via the manifold.

[0021] In addition, pattern grooves are formed on the back and sides of the mold to provide thermal insulation through an air layer and minimize errors caused by thermal expansion, thereby improving the dimensional accuracy of the casting.

[0022] In addition, the split mold structure simplifies the manufacturing and assembly processes, and enables rapid replacement and maintenance, thereby increasing process stability and production efficiency. Brief explanation of the drawing

[0023] FIG. 1 is a partial plan view and an overall perspective view showing the structure of a movable side 4-divided and fixed side 2-divided mold as an embodiment of the dividing mold of the present invention. Figure 2 is an insert-type cooling channel layout diagram. Figure 3 is a diagram showing the configuration of the temperature control and cooling lines for each divided mold. Figure 4 is a schematic diagram illustrating the entire control system through the manifold. Figure 5 is a structural diagram showing the back surface pattern groove of the mold. Specific details for implementing the invention

[0024] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0025] The present invention relates to a split mold control and adjustment device for large-scale aluminum casting. Large molds are required for casting large-scale materials. In particular, the novel semi-solid process is advantageous for improving the mechanical properties (physical properties) of the casting material.

[0026] In manufacturing a mold for a semi-solid casting method, the present invention designs a divided mold and a line configuration of each divided mold to create a mold corresponding to a large part.

[0027] The present invention reduces the production costs and effort associated with processing large molds by configuring a mold for large materials as a divided mold. The divided production of the mold has the advantage of enabling the creation of large molds capable of handling large materials using existing equipment. In particular, the present invention achieves both casting quality and economic efficiency by adjusting the number of divisions according to the shape and size of the material, such as 2 divisions or 4 divisions, and by varying the number of divisions between the movable mold and the fixed mold.

[0028] In addition, temperature control of the mold is important for large molds. In conventional methods, cooling is performed using line cooling that passes through the shape surface, but in split molds, a cooling / temperature control system must be established individually for each split mold. Accordingly, the present invention configures a cooling / temperature control system individually for each split body of the split mold.

[0029] FIG. 1 shows an embodiment of the split mold of the present invention, in which the movable side mold (100) is composed of 4 divisions and the fixed side mold (200) is composed of 2 divisions. This split configuration is one embodiment, and the number of divisions and the size of each division body can be varied depending on the shape of each element of the material. In the upper left of FIG. 1, a plan view of the 4 divisions of the movable side mold (100) is shown, and in the upper right, a plan view of the 2 divisions of the fixed side mold (200) is shown. The divisions of the movable side mold are formed by combining 4 divisions in the up, down, left, and right (east, west, north, south) directions, and the divisions of the fixed side mold are formed by combining 2 divisions in the left and right directions.

[0030] The movable side spreader (110) and the fixed side sleeve (210), which are the parts into which the molten metal is injected, are parts that may be damaged by the molten metal. Accordingly, they are manufactured separately and arranged in an assembled manner so that they can be easily replaced. The fixed side mold (200) is shown to include an insert (220). It has the advantages of concentrated cooling of specific parts, ease of replacement, and the ability to configure a customized cooling channel within the insert.

[0031] Figure 2 shows the configuration of the insert (220) in detail.

[0032] Cooling of critical parts may be necessary to improve the quality of the material after casting. For intensive cooling, an insert-type cooling channel is inserted, which is applied individually to the divided mold. That is, a cooling channel is installed inside the insert (220), and in the case of FIG. 2, a straight cooling line and a bent cooling line having a horizontal section in the middle are arranged in parallel.

[0033] Meanwhile, independent cooling and temperature control lines are installed in each split mold to perform the precise temperature control required for the reaction solid casting method.

[0034] FIG. 3 illustrates a case where a cooling line (10) and a temperature line (11) are installed for each divided body of a divided mold.

[0035] FIG. 4 shows that a cooling / temperature control line is separately configured in the dividing body to enable temperature control for each dividing mold, while a manifold (20) is configured for maintenance to enable control from the entire line. That is, the manifold controls the entire dividing mold.

[0036] The entire line is controlled in an integrated manner through the manifold (20), while maintenance of each divided mold is easy. In other words, the line can be managed in an integrated manner, specific lines can be blocked or replaced, and maintenance is easy because the line connection parts are standardized and modularized. During partial maintenance, the operation of the entire line is not stopped, thereby maintaining good productivity.

[0037] Figure 5 shows the pattern groove (30) formed on the back side of the mold.

[0038] A pattern groove (30) is formed on the back of the mold to provide thermal insulation (heat retention) through an air layer and minimize errors caused by thermal expansion. The pattern groove (30) formed on the back has a width that is larger than its depth. For example, the width can be 13 to 17 mm and the depth 8 to 12 mm. Additionally, a side groove (40) is formed on the side (wall) of the split mold. The depth of the side groove (40) can be 6 to 8 mm.

[0039] With this configuration, it is possible to economically provide a split die capable of casting large materials with high quality.

[0041] Unless otherwise defined in the foregoing, all technical and scientific terms used in this specification have the same meaning as commonly understood by a skilled expert in the art to which the present invention pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise. Throughout the specification, when a part is described as having, possessing, or including a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Additionally, the singular form may include the plural form depending on the context.

[0042] Furthermore, the terms used in this invention are used merely to describe specific embodiments and are not intended to limit the invention.

[0044] The rights of the present invention are not limited to the embodiments described above but are defined by the claims, and it is obvious that a person skilled in the art may make various modifications and adaptations within the scope of the rights described in the claims. Explanation of the symbols

[0045] Movable side mold (100), fixed side mold (200), spreader (110), sleeve (210), insert (220), cooling line (10), temperature line (11), manifold (20), pattern groove (30), side groove (40)

Claims

Claim 1 A mold for a semi-solid casting method for casting large materials, comprising: a movable side mold divided into four sections; and a fixed side mold divided into two sections; wherein the movable side mold comprises four sections that are combined vertically and horizontally on a planar view, and the fixed side mold comprises two sections that are combined horizontally on a planar view, and the sections constituting the divided mold are each equipped with a separate cooling line and a temperature control line to be individually temperature controlled. Claim 2 delete Claim 3 A split mold according to claim 1, characterized in that the spreader of the movable mold and the sleeve of the fixed mold, which are the parts into which molten metal is injected, are each manufactured separately and assembled and arranged so as to be easily replaced. Claim 4 A split mold according to claim 1, characterized in that the split body includes an insert including a cooling channel so that it can be intensively cooled. Claim 5 A split mold according to claim 1, characterized by including a manifold capable of integrally controlling cooling lines and temperature control lines for the entire split mold. Claim 6 A split die according to claim 1, characterized in that a pattern groove is formed on the back surface of the split die. Claim 7 A split die according to claim 1, characterized in that a groove is formed on the side of the split die.

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