High-temperature-resistant medium-frequency reduction furnace casting mold

Abstract

The utility model discloses a high temperature resistant intermediate frequency reduction furnace casting mould, including graphite base, annular graphite mould, support mould and handle, annular graphite mould is provided the graphite base upper side, annular graphite mould top is open, the graphite base upper side is fixed with the support mould, and the handle is fixed with the support mould. The inner side of the supporting mold makes contact with the outer side of the annular graphite mold, and a handle is installed on the side face of the supporting mold. According to the high-temperature-resistant medium-frequency reduction furnace casting mold, the mold structure is simplified, water does not need to be supplied, safety accidents caused by leakage or breakdown of the water-cooled cable and the water-cooled plate in a high-temperature environment are prevented, the safety of the production environment is guaranteed, meanwhile, in the casting process, the weight of the mold is reduced, the mold is convenient to operate, and the production efficiency is improved. And the surface of the mold is subjected to smooth treatment, demolding is convenient, in addition, the mold has high oxidation resistance, and the service life of the mold is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of casting moulds, in particular to a high temperature resistant medium frequency reduction furnace casting mould. Background Art

[0002] The medium frequency reduction furnace is a kind of equipment for refining steel, iron and other metals or rare earth metals by induction heating with medium frequency power supply in an inert gas environment. The medium frequency reduction furnace is mainly composed of a power supply, an induction coil and a crucible made of refractory materials in the induction coil. The crucible contains metal charge, which is equivalent to the secondary winding of the transformer. When the induction coil is connected to the AC power supply, an alternating magnetic field is generated in the induction coil. Its magnetic lines of force cut the metal charge in the crucible, and an induced electromotive force is generated in the charge. Since the charge itself forms a closed loop, the points of this secondary winding are only turns and are closed, so an induced current is generated in the charge at the same time. When the induced current passes through the charge, the charge is heated to cause it to melt.

[0003] When the metal is melted, it is cast into a specific container or mold to obtain a specific reduced metal element. Because the temperature of the casting process is extremely high, the specific container and the bottom of the mold are easily deformed due to the instantaneous high temperature, resulting in deformation of the cast metal and affecting the casting effect. In order to prevent the specific container and mold from deforming, water-cooling cables and water-cooling plates are usually used to cool them down. The overall iron mold is placed on a hollow copper base with a hollow middle for water to flow through and drainage to drain (such as Figure 1 However, during this process, leakage or breakdown of the water-cooling cable and the water-cooling plate in a high-temperature environment may lead to safety accidents, which is not conducive to the casting of the mold. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a high-temperature resistant medium-frequency reduction furnace casting mold, which simplifies the mold structure and no longer requires water to pass through, thereby preventing water-cooled cables and water-cooled plates from leaking or breaking through in a high-temperature environment and causing safety accidents, thereby ensuring the safety of the production environment. At the same time, during the casting process, the weight of the mold itself is reduced, making it convenient to operate the mold, and the mold surface is smoothed for easy demoulding. In addition, the mold has high oxidation resistance, which increases the service life of the mold, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature resistant medium-frequency reduction furnace casting mold, comprising a graphite base, an annular graphite mold, a supporting mold and a handle, the annular graphite mold is arranged on the upper side of the graphite base, and the top of the annular graphite mold is open, a supporting mold is fixed on the upper side of the graphite base, and the inner side of the supporting mold is in contact with the outer side of the annular graphite mold, and a handle is installed on the side of the supporting mold.

[0006] As a preferred technical solution of the utility model, the supporting mold is an iron sheet, and the iron sheet is wrapped around the outside of the annular graphite mold.

[0007] As a preferred technical solution of the present invention, the handle is made of iron, and the handle is fixed to the outside of the iron sheet by welding. There are two handles, and the two handles are symmetrically arranged.

[0008] As a preferred technical solution of the utility model, the surface of the annular graphite mold is smoothed.

[0009] As a preferred technical solution of the utility model, the shape of the internal space of the annular graphite mold includes circle, square, diamond, trapezoid and cone.

[0010] As a preferred technical solution of the present invention, the graphite base can be made of other high-temperature heat-insulating materials.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The high temperature resistant medium frequency reduction furnace casting mold of the utility model example changes the material of the mold container so that the mold has no water cooling plate and water cooling cable, thereby preventing the water cooling plate and water cooling cable from leaking and causing explosion in a high temperature environment, and reducing the weight of the mold, making it easy to take and place.

[0013] 2. The high temperature resistant medium frequency reduction furnace casting mold of the utility model is mirror polished on the mold surface, which is convenient for operation and demoulding.

[0014] 3. The high-temperature resistant medium-frequency reduction furnace casting mold of the utility model example replaces the mold material with a graphite structure, which can effectively improve the mold's oxidation resistance, thereby increasing the mold's service life and reducing production costs. The graphite structure will not cause pollution to the refined metal, thereby ensuring the quality of metal refining. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of a conventional water-cooled mold;

[0016] Figure 2 It is a structural schematic diagram of the utility model.

[0017] In the figure: 1 graphite base, 2 annular graphite mold, 3 support mold, 4 handle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 2 The utility model provides a technical solution: a high temperature resistant medium frequency reduction furnace casting mold, including a graphite base 1, an annular graphite mold 2, a supporting mold 3 and a handle 4, the annular graphite mold 2 is arranged on the upper side of the graphite base 1, and the top of the annular graphite mold 2 is open, the surface of the annular graphite mold 2 is smoothed, and the shape of the internal space of the annular graphite mold 2 includes a circle, a square, a diamond, a trapezoid, a cone, or one of other shapes, the upper side of the graphite base 1 is fixed with a supporting mold 3, and the inner side of the supporting mold 3 is connected to the annular The outer side of the graphite mold 2 is in contact, the supporting mold 3 is iron sheet, and the iron sheet is wrapped around the outer side of the annular graphite mold 2. After the annular graphite mold 2 is wrapped by the supporting mold 3, it is placed on top of the graphite base 1, and the whole set of molds is placed in the medium frequency furnace for casting. A handle 4 is installed on the side of the supporting mold 3. The handle 4 is made of iron, and the handle 4 is fixed to the outer side of the iron sheet by welding. There are two handles 4, and the two handles 4 are symmetrically arranged. The handle 4 is used to facilitate the removal and placement of the casting mold. The graphite base 1 can be made of other high-temperature insulation materials.

[0020] The utility model changes the material of the mold container so that the mold does not have a water cooling plate and a water cooling cable, thereby preventing the water cooling plate and the water cooling cable from leaking and causing an explosion in a high temperature environment, and reducing the weight of the mold, making it easy to take and place. The surface of the casting mold is mirror-polished for easy operation and demoulding. Replacing the mold material with a graphite structure can effectively improve the oxidation resistance of the mold, thereby increasing the service life of the mold and reducing production costs. The graphite structure will not pollute the refined metal, thereby ensuring the quality of metal refining.

[0021] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A high temperature resistant medium frequency reduction furnace casting mold, comprising a graphite base (1), an annular graphite mold (2), a supporting mold (3) and a handle (4), characterized in that: The annular graphite mold (2) is arranged on the upper side of the graphite base (1), and the top of the annular graphite mold (2) is open. A supporting mold (3) is fixed on the upper side of the graphite base (1), and the inner side of the supporting mold (3) is in contact with the outer side of the annular graphite mold (2). A handle (4) is installed on the side of the supporting mold (3).

2. The high temperature resistant medium frequency reduction furnace casting mold according to claim 1 is characterized in that: The supporting mold (3) is made of iron sheet, and the iron sheet is wrapped around the outside of the annular graphite mold (2).

3. The high temperature resistant medium frequency reduction furnace casting mold according to claim 2 is characterized in that: The handle (4) is made of iron, and the handle (4) is fixed to the outside of the iron sheet by welding. Two handles (4) are provided, and the two handles (4) are symmetrically arranged.

4. The high temperature resistant medium frequency reduction furnace casting mold according to claim 1, characterized in that: The surface of the annular graphite mold (2) is smoothed.

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