200KG-500KG grade vacuum induction furnace ingot mould

Abstract

The utility model belongs to the field of smelting furnace equipment, and particularly relates to a 200KG-500KG grade vacuum induction furnace ingot mould which comprises a base, a left mould body and a right mould body, the left mould body and the right mould body are fixed on the base, the left mould body and the right mould body are hollow semi-cylinders, the left mould body and the right mould body are combined to form a hollow cylinder, and the left mould body and the right mould body are fixed on the base. A concave-convex inlay structure is adopted for the joint surface, and the peripheries of the left die body and the right die body are fixed by pin plates. The combined surface of the split ingot mould adopts a concave-convex embedded structure, so that the impact tolerance of the combined surface is enhanced, the strength and the rigidity of an integral ingot mould are equal, the gravity impact of high-temperature molten steel can be borne, the disassembly and the assembly are convenient, and particularly, when the mould body has defects and a steel ingot cannot be normally separated from the ingot mould in the axial direction, the mould body can be separated; the steel ingot is easily and radially separated from the mold body, and demolding is smooth.

Description

Technical Field

[0001] The utility model belongs to the field of smelting furnace equipment, and particularly relates to an ingot mold for a 200KG - 500KG level vacuum induction furnace. Background Art

[0002] At present, the 500kg vacuum induction furnace ingot mold is an integrally molded body and a base plug-in combined cast steel ingot mold. After the mold body and the base are plugged and combined, it is used to hold the qualified molten steel in the vacuum furnace until it solidifies. After the molten steel solidifies and shrinks, there will be a gap of 2mm - 5mm between the mold body and the molten steel, and the steel ingot can be smoothly axially removed from the ingot mold, and the ingot mold can be reused. However, due to various factors such as the impact of high-temperature molten steel during smelting, the material of the ingot mold, pouring temperature, pouring flow rate, etc., after the cast steel mold body is used for several furnaces, defects such as protrusions and depressions will occur on the inner wall, and with the accumulation of the number of uses, the defects will gradually deteriorate. When the depth of the protrusions and depressions is greater than 5mm, it will cause difficulties in demolding, and in severe cases, the steel ingot cannot be removed, resulting in the scrapping of all finished steel ingots and ingot molds, affecting the smelting progress. Content of the Utility Model

[0003] The purpose of the utility model is to provide an ingot mold for a 200KG - 500KG level vacuum induction furnace, which solves the problem that after the cast steel mold body is used for several furnaces during pouring, defects such as protrusions and depressions will occur on the inner wall, resulting in difficulties in demolding, and in severe cases, the steel ingot cannot be removed.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An ingot mold for a 200KG - 500KG level vacuum induction furnace includes a base, a left mold body and a right mold body. The left mold body and the right mold body are fixed on the base. The left mold body and the right mold body are both hollow semi-cylinders, and the left mold body and the right mold body are combined to form a hollow cylinder, and the joint surface adopts a concave-convex mosaic structure.

[0006] Preferably, the outer periphery of the left mold body and the right mold body is fixed with pin plates.

[0007] Preferably, the left mold body and the right mold body are fixed to the base by plug-in or pin plates.

[0008] The beneficial effects obtained by the utility model:

[0009] (1) The split ingot mold is adopted, and the joint surface of the split ingot mold uses a concave-convex mosaic structure, which is convenient for disassembly and assembly. When the mold body has defects and the steel ingot cannot be normally axially removed from the ingot mold, the mold body can be separated, and the steel ingot can be easily radially separated from the mold body to achieve smooth demolding, completely solving the problem of difficult demolding when the integral ingot body has defects, and the safety and usability are better than those of the integral type;

[0010] (2) The ingot mold adopts a split structure. When one of the petals of an ingot mold is severely defective and cannot be used, the other petal can be recombined with other ingot molds for use, improving the utilization efficiency of the ingot mold and extending its service life.

[0011] (3) The cost of the split ingot mold is basically close to that of the integral ingot mold, and the production cost does not increase. During use, the split type is more rapid and convenient to operate than the integral type, greatly reducing the operation risk during demoulding and improving the safety factor. It can not only meet the function of containing molten steel but also facilitate demoulding, ensuring the normal and orderly development of scientific research and test work, and significantly improving work efficiency. Description of the Drawings

[0012] Figure 1 It is a schematic structural view of the present utility model.

[0013] Description of the reference numerals: 1, base; 2, left mold body; 3, right mold body; 4, pin plate. Specific Embodiment

[0014] The technical solution of the present utility model will be clearly and completely described below with reference to the drawings and embodiments.

[0015] As Figure 1 shown, a 200KG - 500KG grade vacuum induction furnace ingot mold includes a base 1, a left mold body 2 and a right mold body 3. The left mold body 2 and the right mold body 3 are fixed on the base 1 through a pin plate 4. Both the left mold body 2 and the right mold body 3 are hollow semi-cylinders, and the left mold body 2 and the right mold body 3 are combined to form a hollow cylinder. The joint surface adopts a concave-convex mosaic structure, and the outer periphery of the left mold body 2 and the right mold body 3 is fixed with a pin plate 4. The joint surface of the split ingot mold adopts a concave-convex mosaic structure, enhancing the impact resistance at the joint surface, achieving the same strength and stiffness as the integral ingot mold, being able to withstand the gravity impact of high-temperature molten steel, and being convenient for disassembly and assembly. Especially when the mold body has defects and the steel ingot cannot be normally axially removed from the ingot mold, the mold body can be separated, and the steel ingot can be easily separated from the mold body radially for smooth demoulding.

[0016] After using this ingot mold, the service life is significantly extended. The service life of the integral type is 15 furnaces, and the service life of the split type is 38 furnaces, which is 2.5 times that of the integral type. Each ingot mold costs 8000 yuan, and 4 can be saved annually for use, with a total of 8000 yuan × 4 = 32000 yuan.

[0017] Most of the test smelting products in the vacuum furnace are high-end new products with high quality requirements and high value. Using this ingot mold can avoid problems such as defects or even scrapping of the steel grades in scientific research tests caused by inability to demould. 3 furnaces of steel ingot scrapping losses can be recovered annually, with an average value of 15000 yuan per furnace, totaling 15000 yuan / furnace × 3 furnaces = 45000 yuan. The intangible benefits brought are also very considerable.

Claims

1. A 200KG-500KG vacuum induction furnace ingot mold, characterized in that: The invention comprises a base (1), a left mold body (2) and a right mold body (3); the left mold body (2) and the right mold body (3) are fixed on the base (1); the left mold body (2) and the right mold body (3) are both hollow semi-cylinders, and the left mold body (2) and the right mold body (3) are combined to form a hollow cylinder, and the combined surface adopts a concave-convex mosaic structure.

2. A 200KG-500KG vacuum induction furnace ingot mold according to claim 1, characterized in that: The left mold body (2) and the right mold body (3) are fixed at their peripheries with pin plates.

3. The 200KG-500KG vacuum induction furnace ingot mold according to claim 2, characterized in that: The left mold body (2) and the right mold body (3) are fixed to the base (1) by plug-in connection or pin-plate connection.

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