Riser brick

Abstract

The utility model discloses a riser brick, which relates to the technical field of vacuum induction furnace smelting, and comprises a riser brick body, the riser brick body is used for being in fit connection with a laboratory steel ingot mold, and the riser brick body is internally provided with a cone-frustum-shaped inner cavity which is communicated up and down; the diameter of an upper water gap of the cone-frustum-shaped inner cavity is smaller than that of a lower water gap of the cone-frustum-shaped inner cavity, the cone-frustum-shaped inner cavity is used for compensating liquid shrinkage of molten metal in a laboratory steel ingot mold cavity and shrinkage of a casting in the solidification process, the structure is simple, use is convenient, and the feeding effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum induction furnace smelting, in particular to a riser brick. Background Art

[0002] A riser refers to a supplementary part added above or on the side of a casting to avoid defects in the casting. Risers with different functions have different forms, sizes and opening positions. The main function of the riser is to compensate for the liquid shrinkage of the molten metal in the cavity and the shrinkage during the solidification of the casting, so as to obtain a casting without shrinkage cavities.

[0003] At present, the riser bricks used in the laboratory cannot perform feeding well, and the shrinkage cavities inside the ingot are relatively large. This reduces the internal quality of the ingot, and the cutting rate after rolling is relatively high, affecting the mechanical properties of the experimental steel. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a riser brick to solve the problems existing in the above-mentioned prior art, with simple structure, convenient use, and effectively improving the feeding effect.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] The utility model provides a riser brick, including: a riser brick body, the riser brick body is used for fittingly connecting with a laboratory ingot mold, a frustum-shaped inner cavity communicating up and down is arranged inside the riser brick body, the diameter of the upper water inlet of the frustum-shaped inner cavity is smaller than the diameter of the lower water inlet of the frustum-shaped inner cavity, and the frustum-shaped inner cavity is used for compensating the liquid shrinkage of the molten metal in the laboratory ingot mold cavity and the shrinkage during the solidification of the casting.

[0007] Preferably, the riser brick body has a cylindrical structure, and the diameter of the riser brick body is 230 mm.

[0008] Preferably, the diameter of the upper water inlet of the frustum-shaped inner cavity is 100 mm.

[0009] Preferably, the diameter of the lower water inlet of the frustum-shaped inner cavity is 130 mm.

[0010] Preferably, the height of the frustum-shaped inner cavity is 200 mm.

[0011] The utility model has obtained the following technical effects compared with the prior art:

[0012] The utility model provides a riser brick, by arranging a frustum-shaped inner cavity in the riser brick body, effectively increasing the volume of the molten steel in the riser area of the riser brick body, promoting the full feeding of the molten steel, greatly reducing the shrinkage cavities inside the ingot, improving the internal quality of the ingot, and improving the mechanical properties of the experimental steel. Brief Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a front view sectional view of the riser brick provided by the present invention;

[0015] In the figure: 1. Riser brick body; 2. Frustum-shaped inner cavity; 3. Upper water inlet; 4. Lower water inlet. Detailed Embodiments

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0017] The purpose of the present invention is to provide a riser brick to solve the problems existing in the above-mentioned prior art, with a simple structure, convenient use, and effectively improving the feeding effect.

[0018] To make the above-mentioned objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0019] The present invention provides a riser brick, including: a riser brick body 1, the riser brick body 1 is used for fitting connection with a laboratory ingot mold, a frustum-shaped inner cavity 2 communicating up and down is arranged inside the riser brick body 1, the diameter of the upper water inlet 3 of the frustum-shaped inner cavity 2 is smaller than the diameter of the lower water inlet 4 of the frustum-shaped inner cavity 2, and the frustum-shaped inner cavity 2 is used to compensate for the liquid shrinkage of the molten metal in the laboratory ingot mold cavity and the shrinkage during the solidification of the casting.

[0020] In a preferred embodiment, the riser brick body 1 has a cylindrical structure, the diameter of the riser brick body 1 is 230 mm, the diameter of the upper water inlet 3 of the frustum-shaped inner cavity 2 is 100 mm, the diameter of the lower water inlet 4 of the frustum-shaped inner cavity 2 is 130 mm, and the height of the frustum-shaped inner cavity 2 is 200 mm. Such a design increases the riser area of the ingot. After casting, the molten metal in the riser area is full, the molten metal is fully fed, the shrinkage cavity is greatly reduced, the internal quality of the ingot is significantly improved, and the mechanical properties of the rolled steel plate are significantly improved.

[0021] In this utility model, specific examples are used to elaborate on the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation on the utility model.

Claims

1. A riser brick, characterized in that: include: A riser brick body, the riser brick body is used to fit and connect with the laboratory ingot mold, the interior of the riser brick body is provided with a truncated cone-shaped inner cavity connected up and down, the diameter of the upper water outlet of the truncated cone-shaped inner cavity is smaller than the diameter of the lower water outlet of the truncated cone-shaped inner cavity, and the truncated cone-shaped inner cavity is used to compensate for the liquid shrinkage of the metal liquid in the laboratory ingot model cavity and the shrinkage of the casting during solidification.

2. The riser brick according to claim 1, characterized in that: The riser brick body has a cylindrical structure, and the diameter of the riser brick body is 230 mm.

3. The riser brick according to claim 2, characterized in that: The diameter of the upper water inlet of the truncated cone-shaped inner cavity is 100 mm.

4. The riser brick according to claim 3, characterized in that: The diameter of the lower water outlet of the truncated cone-shaped inner cavity is 130 mm.

5. The riser brick according to claim 1, characterized in that: The height of the truncated cone-shaped inner cavity is 200 mm.

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