KR-20260066954-A - Replaceable mold for manufacturing ingot

Abstract

The ingot manufacturing mold of the present invention may include an upper mold having a cylindrical shape that extends in a first direction and has a receiving space formed inside, with the upper and lower ends open, a first fastening part formed on the lower outer surface of the upper mold, a lower mold that is detachably coupled to the upper mold, and a second fastening part formed on the upper outer surface of the lower mold and coupled to the first fastening part to connect the upper mold and the lower mold. The ingot manufacturing mold of the present invention is designed so that a portion is replaceable, which can significantly improve mold maintenance/repair costs and convenience.

Inventors

• 이승욱
• 정세지
• 김태웅

Assignees

• 주식회사 세아창원특수강

Dates

Publication Date

20260512

Application Date

20241105

Claims (7)

1. A cylindrical upper mold extending in a first direction to form an internal receiving space, with the top and bottom open; A first fastening part formed on the lower outer surface of the upper mold; A lower mold detachably coupled to the upper mold; and A mold for manufacturing an ingot, comprising: a second fastening part formed on the upper outer surface of the lower mold and coupled with the first fastening part to connect the upper mold and the lower mold.
2. In paragraph 1, A mold for manufacturing ingots, characterized in that a coupling groove formed in the lower part of the upper mold and a coupling projection formed in the upper part of the lower mold are fastened in a male-female fit form.
3. In paragraph 1, A mold for manufacturing an ingot, characterized in that the lower mold has a cylindrical shape, is detachably coupled in a second direction perpendicular to the first direction, and includes a first part and a second part forming an arc shape on their respective cross-sections.
4. In paragraph 3, A fastening groove is formed on the edge parallel to the first direction of the first part, and A fastening end is formed on the edge of the second part parallel to the first direction, and A mold for manufacturing ingots characterized in that the above-mentioned fastening groove and the above-mentioned fastening end are fastened in a male-female fit form.
5. In paragraph 4, A first extension end having a plurality of holes, which is adjacent to the edges on both sides of the first part and extends parallel to a third direction perpendicular to the first direction and the second direction, and It has a second extension end that is adjacent to the edges on both sides of the second part, extends parallel to the third direction, and includes a plurality of holes. A mold for manufacturing ingots, characterized in that the first extension end and the second extension end are connected by interlocking through a bolt-nut connection using provided holes.
6. In paragraph 1, The first fastening portion includes a plurality of first protrusions having holes formed on the lower outer surface of the upper mold, and The second fastening portion includes a plurality of second protrusions having holes formed on the upper outer surface of the lower mold, and A mold for manufacturing ingots, characterized in that the first fastening part and the second fastening part are connected by engaging through a bolt-nut connection using a provided hole.
7. In paragraph 1, A mold for manufacturing an ingot, characterized in that, with respect to the first direction length L of the upper mold, the first direction length of the lower mold is 0.1L to 0.5L.

Description

Replaceable mold for manufacturing ingot The present invention relates to a replaceable mold for manufacturing ingots, and more specifically, to a mold for manufacturing ingots in which a part of the mold is designed to be replaceable, thereby greatly improving mold maintenance/repair costs and convenience. High-melting-point metals are utilized as core materials in modern industry, either as they are or alloyed with metal materials having lower melting points, for high-temperature applications or for their excellent corrosion resistance. To meet these industrial demands, metal raw materials are first melted in a melting furnace (or furnace) and supplied as ingots, after which they are remelted or undergo post-processing as needed. Here, a melting furnace refers to a furnace that melts metal by applying high heat above its melting point, and an ingot refers to a material formed by pouring metal raw materials into a specific mold or stencil (hereinafter referred to as 'mold') inside the melting furnace, melting it at a high temperature, and solidifying it into an appropriate size and shape. Looking at an example of a method or apparatus for manufacturing an ingot, there is a method in which metal raw materials are melted in an electron beam melting furnace or a plasma melting furnace, and the ingot, which has been cooled and solidified within the mold, is drawn out from the mold. In particular, the plasma melting furnace is widely used as an apparatus or method for melting the high-melting-point metals, as it is a furnace that melts metal using a plasma torch after maintaining the interior in a vacuum state. Looking at the main components of the ingot manufacturing process as an example, it may include a raw material supply unit that supplies metal raw materials, a melting furnace in which the metal raw materials supplied from the raw material supply unit are melted, a mold in which the melted metal is received, a base plate that supports the ingot drawn from the bottom of the mold, and a cylinder that moves the base plate up and down from the bottom of the base plate. In other words, when heat is applied to metal raw materials using a plasma torch or the like, the metal melts; the molten metal is contained in a mold and, while cooled, drawn onto a lower base plate to be manufactured into an ingot. At this time, the molten metal is poured into the mold; however, if the molten metal strikes the base plate, it scatters and adheres to the inner wall of the mold, solidifying. This can make it impossible to draw the ingot or result in defective products. Therefore, periodic maintenance is required to remove the solidified metal adhering to the inside of the mold. The high-melting-point metal manufacturing process for producing ingots generally involves controlling tens or hundreds of tons of molten steel, and the size and weight of the ingots and molds produced can also reach tens of meters or tens of tons. The cost of maintaining and repairing such massive ingot manufacturing molds is also high. Therefore, there is a need to develop a mold structure or shape that can solve these problems and reduce the maintenance and repair costs of ingot manufacturing molds. FIG. 1 is a perspective view of a mold for manufacturing an ingot according to one embodiment of the present invention. FIG. 2 is a perspective view of a mold for manufacturing an ingot according to one embodiment of the present invention. FIG. 3 shows a cross-section of a mold for manufacturing an ingot according to one embodiment of the present invention. FIG. 4 illustrates the process of replacing a mold for manufacturing an ingot according to one embodiment of the present invention. Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings. The present invention is capable of various modifications and may take various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the invention to the specific disclosed forms, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. FIGS. 1 and 2 are perspective views of a mold for manufacturing an ingot according to one embodiment of the present invention, and FIG. 3 is a cross-sectional view of a mold for manufacturing an ingot according to one embodiment of the present invention. Hereinafter, a mold for manufacturing an ingot according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. Meanwhile, in the description, the Z-axis direction is referred to as the first direction, the X-axis direction as the second direction, and the Y-axis direction as the third direction, but this is merely an example based on a relative perspective, and the first to third directions and coordinate axes (X, Y, Z axes) are introduced only