Electromagnetic stirring crystallization wheel casting machine

Abstract

The utility model discloses an electromagnetic stirring crystallization wheel casting machine which is characterized by comprising a crystallization wheel, a steel belt wheel, a steel belt tensioning wheel, a steel belt pressing wheel and a steel belt, the crystallization wheel, the steel belt wheel, the steel belt tensioning wheel and the steel belt pressing wheel are located on the same plane, the inner side of the steel belt makes contact with the outer circle face of the steel belt wheel, the outer circle face of the steel belt tensioning wheel and the outer circle face of the steel belt pressing wheel, and the inner side of the steel belt makes contact with the outer circle face of the steel belt wheel. The outer side of the steel belt makes contact with the outer circle face of the crystallization wheel, the steel belt wheel and the steel belt tensioning wheel are arranged below the crystallization wheel, the pressing wheel is arranged above the crystallization wheel, and a horseshoe-shaped electromagnetic stirrer is arranged on the crystallization wheel. Due to the fact that stirring and crystallization are conducted synchronously, alloy elements are crystallized in a uniform state, and then the alloy elements in the alloy metal liquid are still kept in the uniform state after the alloy metal liquid is cooled. And meanwhile, the stirring procedure and the casting procedure are combined, so that the production efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to a wheel casting machine, in particular to an electromagnetic stirring crystallization wheel casting machine. Background Art

[0002] In the electrical industry, the casting machines for non-ferrous metals (copper, aluminum) all use wheel casting machines, that is, they use crystallization wheels for heat exchange to cool and crystallize the molten metal. In ferrous metals, tubular crystallizers are used, which are conducive to the installation of various electromagnetic stirrers. Therefore, whether it is the production of pure copper, pure aluminum, or the production of copper alloys and aluminum alloys, wheel casting machines are used. However, since the crystallization wheel of the wheel casting machine is a rotating structure, it cannot be installed with electromagnetic stirrers around the crystallizer like a tubular crystallizer. The existing technical means often choose to set a stirring process before the casting process. For the production of copper alloy and aluminum alloy products, since the stirring link is set before casting, in the process from the stirring process to the casting process, some of the alloy elements that have been evenly distributed will precipitate or float again. During the casting process, the alloy elements will be unevenly distributed in the substrate, and the grains will be coarse, which will seriously affect the mechanical and physical properties of the product, making the product at a low price in the international market. Utility Model Content

[0003] The utility model aims to provide an electromagnetically stirred crystallization wheel casting machine to solve the problem of uneven distribution of alloy elements in a substrate during the nonferrous metal wheel casting process in the prior art.

[0004] The utility model is realized by adopting the following technical scheme: an electromagnetic stirring crystal wheel casting machine comprises a crystal wheel, and is characterized in that a stirrer is arranged on the crystal wheel.

[0005] Furthermore, the stirrer is an electromagnetic stirrer

[0006] Furthermore, the stirrer is horseshoe-shaped.

[0007] Furthermore, it also includes a support frame, and the electromagnetic stirrer is installed on the support frame.

[0008] Furthermore, a steel belt pressure wheel is arranged above the crystallization wheel, the steel belt pressure wheel is connected to the support frame, a steel belt tensioning wheel is arranged on one side of the crystallization wheel, and a steel belt is sleeved between the steel belt tensioning wheel and the steel belt pressure wheel.

[0009] Furthermore, the steel belt pressure wheel is connected to the support frame through a pressure arm, one end of the pressure arm is connected to the steel belt pressure wheel through a rotating shaft, and the other end is connected to the support frame through a pressure arm rotating shaft.

[0010] Furthermore, the agitator is arranged behind the steel belt pressure wheel and between the rotation axis of the pressure arm and the crystallization wheel.

[0011] Furthermore, a steel belt supporting wheel is provided on the support frame, and the steel belt supporting wheel is located between the steel belt tensioning wheel and the steel belt pressing wheel, and raises the steel belt between the steel belt tensioning wheel and the steel belt pressing wheel, thereby reserving sufficient space for the rotating shaft of the pressing arm and the agitator.

[0012] Furthermore, a crystallization groove is arranged on the outer circumferential surface of the crystallization wheel, and the crystallization groove cooperates with the steel belt to form a crystallization cavity, the entrance of the crystallization cavity is a pouring port, and the exit is an ingot outlet, the pouring port is located between the steel belt clamping wheel and the crystallization wheel, and the ingot outlet is located between the steel belt wheel and the crystallization wheel.

[0013] Furthermore, the ingot outlet is provided with an anchor opener, on which a wedge block is provided and inserted into the crystallization groove of the crystallization wheel, and the ingot after cooling and crystallization is peeled off the crystallization wheel through the wedge block.

[0014] The beneficial effect of the utility model is that by setting a horseshoe-shaped electromagnetic stirrer at the pouring port of the wheel casting machine, the alloy metal liquid is driven by the magnetic field generated by the electromagnetic stirrer to produce a rotational motion, so that the alloy elements in the liquid are evenly distributed, and the cooling gradually crystallizes, and the grains are refined. Since the stirring and crystallization are carried out simultaneously, the alloy elements are crystallized in a uniform state, and then the alloy elements inside the alloy metal liquid are still kept in a uniform state after cooling. At the same time, the production efficiency is further improved by combining the stirring process with the casting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of a crystal wheel casting machine with electromagnetic stirring;

[0017] Figure 2 It is a schematic diagram of the relative position of the horseshoe-shaped electromagnetic stirrer and the crystallization wheel;

[0018] Figure 3 This is a product metallographic diagram of a wheel casting machine without an electromagnetic stirring device;

[0019] Figure 4 Schematic diagram of the metallographic structure of the product for this application

[0020] In the figure, 1-crystallization wheel, 2-steel belt wheel, 3-steel belt tensioning wheel, 4-steel belt supporting wheel, 5-steel belt clamping wheel, 6-clamping arm, 7-clamping arm rotating shaft, 8-support frame, 9-steel belt, 10-agitator, 11-anchor starter, 12-pouring machine box, 13-pouring gate, 14-ingot outlet. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 2 As shown, an electromagnetic stirring crystallization wheel casting machine includes a crystallization wheel 1 and a steel belt wheel 2 arranged on one side of a casting machine housing 12, and also includes a steel belt supporting wheel 4 and a steel belt pressing wheel 5 arranged above the crystallization wheel 1 and a steel belt tensioning wheel 3 arranged outside the casting machine housing 12, wherein the steel belt tensioning wheel 3 and the rotation axis of the steel belt wheel 2 are located in the same horizontal plane and are fixed on the slideway through a bracket, and are pushed by a cylinder to ensure tension, wherein the crystallization wheel 1, the steel belt wheel 2, the steel belt tensioning wheel 3, the steel belt supporting wheel 4 and the steel belt pressing wheel 5 are all arranged in the same vertical plane, wherein the crystallization wheel 1 and the steel belt wheel 2 are arranged in the casting machine housing 12 through a rotating shaft On one side, the steel belt supporting wheel 4 and the steel belt pressing wheel 5 are arranged on one side of the support frame 8, and the support frame 8 is arranged above the casting machine box 12. The steel belt supporting wheel 4 is connected to the support frame 8 through a rotating shaft, and the steel belt pressing wheel 5 is connected to the support frame 8 through a pressing arm 6. One end of the pressing arm 6 is connected to the steel belt pressing wheel 5 through a rotating shaft, and the other end is connected to the support frame 8 through a pressing arm rotating shaft 7. The pressing arm 6 is also connected to a cylinder, and the pressing arm 6 can be driven by the cylinder to rotate around the pressing arm rotating shaft 7 to realize the rise and fall of the steel belt pressing wheel 5, so that the steel belt pressing wheel 5 can press the steel belt 9 against the crystallization wheel 1.

[0024] The steel belt 9 is sleeved on the steel belt pulley 2, the steel belt tensioning wheel 3, the steel belt supporting wheel 4 and the steel belt pressing wheel 5. The steel belt 9 starts from the steel belt pulley 2, passes through the steel belt tensioning wheel 3, the steel belt supporting wheel 4, the steel belt pressing wheel 5 and the crystallization wheel 1 in sequence, and finally returns to the steel belt pulley 2. The inner side of the steel belt 9 contacts the rotating surfaces of the steel belt pulley 2, the steel belt tensioning wheel 3, the steel belt supporting wheel 4 and the steel belt pressing wheel 5, and the outer side of the steel belt 9 contacts the rotating surface of the crystallization wheel 1. The rotating surface of the crystallization wheel 1 is provided with a crystallization groove, and the steel belt 9 and the crystallization groove on the crystallization wheel 1 form a crystallization cavity. The entrance of the crystallization cavity is a pouring port 13, and the exit is an ingot outlet 14. The pouring port 13 is located between the steel belt pressure wheel 5 and the crystallization wheel 1, and the ingot outlet 14 is located between the steel belt wheel 2 and the crystallization wheel 1. The distance between the center of the outer circle of the steel belt wheel 2 and the center of the outer circle of the crystallization wheel 1 is slightly greater than the sum of the outer circle radii of the steel belt wheel 2 and the crystallization wheel 1. An anchor breaker 11 is provided at the ingot outlet 14. A wedge block is provided on the anchor breaker 11 and inserted into the crystallization groove of the crystallization wheel 1. The ingot after cooling and crystallization is peeled off the crystallization wheel 1 through the wedge block. The crystallization wheel 1 is driven by a motor and drives the steel belt 9, the steel belt wheel 2, the steel belt tensioning wheel 3, the steel belt supporting wheel 4 and the steel belt pressure wheel 5 to move.

[0025] The crystallization chamber is divided into a stirring section and a crystallization section. The stirring section is located in the front section of the crystallization chamber. A horseshoe-shaped electromagnetic stirrer 10 is arranged on the outside of the stirring section. The horseshoe-shaped electromagnetic stirrer 10 is arranged on the rear side of the steel belt pressure wheel 5 and is located between the crystallization wheel 1 and the pressure arm rotating shaft 7. The steel belt supporting wheel 4 lifts up the steel belt 9 between the steel belt tensioning wheel 3 and the steel belt pressure wheel 5, thereby reserving sufficient space for the pressure arm rotating shaft 7 and the horseshoe-shaped electromagnetic stirrer 10.

[0026] After the alloy metal liquid enters the crystallization cavity from the pouring port 13, it passes through the steel belt pressure wheel 5 and enters the stirring section, where it is stirred by the horseshoe-shaped electromagnetic stirrer 10. After leaving the horseshoe-shaped electromagnetic stirrer 10, the alloy metal liquid enters the crystallization section, where a cooling device (not shown in the figure) is provided at a corresponding position outside the crystallization wheel 1. Usually, the cooling device includes a plurality of nozzles pointing to the crystallization wheel 1, and the cooling liquid is sprayed to the crystallization wheel 1 through the nozzles. Figure 3-Figure 4 As shown, since the alloy molten metal is stirred by the electromagnetic stirrer 10 at the pouring port 13, the alloy elements are more evenly distributed compared with the prior art.

[0027] The above embodiments describe the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the changes and modifications made by the technicians in this field shall be within the scope of protection of the claims attached to the utility model.

Claims

1. An electromagnetically stirred crystallization wheel casting machine, comprising a crystallization wheel (1), characterized in that: The crystallization wheel (1) is provided with an agitator (10); further comprising a support frame (8), wherein the agitator (10) is mounted on the support frame (8); a steel belt pressure wheel (5) is provided above the crystallization wheel (1), wherein the steel belt pressure wheel (5) is connected to the support frame (8); a steel belt tensioning wheel (3) is provided on one side of the crystallization wheel (1), wherein a steel belt (9) is sleeved between the steel belt tensioning wheel (3) and the steel belt pressure wheel (5); the agitator (10) is provided behind the steel belt pressure wheel (5) and between the pressure arm rotating shaft (7) and the crystallization wheel (1); The steel belt pressure wheel (5) is connected to the support frame (8) via a pressure arm (6); one end of the pressure arm (6) is connected to the steel belt pressure wheel (5) via a rotating shaft, and the other end is connected to the support frame (8) via a pressure arm rotating shaft (7); a steel belt supporting wheel (4) is also provided on the support frame (8); the steel belt supporting wheel (4) is located between the steel belt tensioning wheel (3) and the steel belt pressure wheel (5), and raises the steel belt (9) between the steel belt tensioning wheel (3) and the steel belt pressure wheel (5), thereby reserving sufficient space for the pressure arm rotating shaft (7) and the agitator (10).

2. The electromagnetic stirring crystal wheel casting machine according to claim 1, characterized in that: The stirrer (10) is an electromagnetic stirrer.

3. The electromagnetic stirring crystal wheel casting machine according to claim 1, characterized in that: The overall shape of the stirrer (10) is a horseshoe shape.

4. The electromagnetic stirring crystal wheel casting machine according to claim 1, characterized in that: The crystallization wheel (1) is provided with a crystallization groove on its outer circumference, and the crystallization groove cooperates with the steel belt (9) to form a crystallization cavity, the inlet of the crystallization cavity is a pouring port (13), and the outlet is an ingot outlet (14), the pouring port (13) is located between the steel belt pressure wheel (5) and the crystallization wheel (1), and the ingot outlet (14) is located between the steel belt wheel (2) and the crystallization wheel (1).

5. The electromagnetic stirring crystal wheel casting machine according to claim 4, characterized in that: The ingot outlet (14) is provided with an anchoring device (11), and the anchoring device (11) is provided with a wedge-shaped block and is inserted into the crystallization groove of the crystallization wheel (1). After cooling and crystallization, the ingot is peeled off the crystallization wheel (1) through the wedge-shaped block.

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