A continuous wire feeding control device for a continuous casting aluminum melt grain refiner

Abstract

The utility model provides a kind of continuous feeding control device of casting and rolling aluminium melt grain refiner, including two feeding units, the downside of feeding unit is provided with a plastic unit, feeding unit is symmetrically distributed in the two sides of plastic unit, the upper surface of plastic unit is equipped with first feed inlet and second feed inlet that are penetrated to the lower surface of plastic unit, first spiral channel and second spiral channel are opened in the inside of plastic unit, first spiral channel and second spiral channel are communicated with first feed inlet and second feed inlet respectively, each feed inlet is respectively corresponding with the preset discharge position of feeding unit, the downside of plastic unit is equipped with two extrusion units, the preset feed inlet of each extrusion unit is corresponding with the discharge port of each spiral channel. The shape of refiner is controlled by setting plastic unit, and the uniformity between refiner and aluminium melt is increased.

Description

Technical Field

[0001] This utility model relates to a continuous wire feeding control device for grain refiner in cast and rolled aluminum melt. Background Technology

[0002] Cast-rolled aluminum is a process in which molten aluminum is directly cast and rolled into sheets. Grain refinement has a significant impact on the mechanical properties and surface quality of cast-rolled aluminum. Grain refiners are key additives in cast-rolled aluminum production, and their addition method and control precision directly affect the quality of the final product.

[0003] Currently, the main method for refining the grain size of molten aluminum is to add a grain refiner before crystallization during the casting and rolling process. A commonly used grain refiner is aluminum-titanium-boron wire, and its addition ratio during casting and rolling is typically 0.03%-0.05%. By controlling the chemical composition, the purity of the melt is improved, and the undercooling is altered, providing favorable conditions for grain refinement. Adding an appropriate proportion of refiner before casting and rolling can further increase the number of nuclei within the melt, achieving grain fragmentation and refinement.

[0004] In high-throughput aluminum alloy continuous casting and rolling production, specific electrolysis, smelting and continuous casting and rolling processes are required to ensure the refinement and homogenization of the billet structure. This ensures that the composition of the high-throughput continuous casting and rolling billet is uniform, while also ensuring the refinement and homogenization of the billet structure and reducing component segregation.

[0005] However, existing grain refiner addition devices have some problems: existing wire feeding devices can usually only perform wire feeding operation, resulting in uneven distribution of the refiner in the aluminum melt, which leads to insufficient uniformity of the grain refiner when added to the aluminum melt, ultimately affecting the quality of cast and rolled aluminum.

[0006] Therefore, a continuous wire feeding control device for grain refiner in cast and rolled aluminum melt is needed to increase the uniformity between the grain refiner and the aluminum melt. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a continuous wire feeding control device for grain refiner in cast and rolled aluminum melt. By setting a molding unit to control the shape of the grain refiner, the uniformity between the grain refiner and the aluminum melt is increased. This objective of this invention is achieved as follows:

[0008] This utility model proposes a continuous wire feeding control device for grain refiner in cast and rolled aluminum melt, comprising two wire feeding units, a molding unit disposed on the lower side of each wire feeding unit, the wire feeding units being symmetrically distributed on both sides of the molding unit, a first inlet and a second inlet extending through to the lower surface of the molding unit on the upper surface of the molding unit, a first spiral channel and a second spiral channel being formed inside the molding unit, the first spiral channel and the second spiral channel being connected to the first inlet and the second inlet respectively, each inlet corresponding to a preset discharge position of the wire feeding unit, and two extrusion units disposed on the lower side of the molding unit, each extrusion unit having a preset inlet corresponding to the discharge port of each spiral channel.

[0009] Furthermore, a telescopic unit is installed on one side of each of the extrusion units.

[0010] Furthermore, the extrusion unit includes a motor, a housing, and two extrusion rollers. The extrusion rollers are rotatably mounted inside the housing and are arranged opposite to each other. The housing houses the motor, and the drive shaft of the motor is connected to the extrusion rollers.

[0011] Furthermore, a fixing unit is installed between the wire feeding units.

[0012] Furthermore, the spiral within the spiral channel rotates five times.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by setting symmetrically distributed wire feeding units and spiral channels inside the molding unit, the refining agent is fully shaped when passing through the spiral channels, so that the refining agent after exiting the extrusion unit presents a wavy shape when added to the flowing aluminum melt, which greatly improves the uniformity of the distribution of the refining agent in the aluminum melt. Attached Figure Description

[0014] Figure 1 This is a side view of a continuous wire feeding control device for grain refiner in cast and rolled aluminum melt.

[0015] Figure 2 This is a schematic diagram illustrating the mixing effect of a continuous wire feeding control device for grain refiner in cast and rolled aluminum melt.

[0016] In the diagram: 1. Fiber feeding unit, 2. Fine refining agent, 3. Extrusion unit, 4. Telescopic unit, 5. Outer shell, 6. Extrusion roller, 7. Feeding trough, 8. Fixing unit, 9. Shaping unit, 10. Spiral channel. Detailed Implementation

[0017] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0018] Please refer to Figure 1-2 This utility model provides a continuous wire feeding control device for a grain refiner in cast and rolled aluminum melt, comprising two wire feeding units 1, one molding unit 9, and two extrusion units 3. The two wire feeding units 1 are symmetrically distributed on both sides of the molding unit 9, which is located below the wire feeding units 1. The upper surface of the molding unit 9 is provided with a first feed port and a second feed port that extend to the lower surface of the molding unit 9. The interior of the molding unit 9 is provided with a first spiral channel 10 and a second spiral channel 10. The first spiral channel 10 is connected to the first feed port, and the second spiral channel 10 is connected to the second feed port. Each feed port corresponds to a preset discharge position of the wire feeding unit 1. The lower side of the molding unit 9 is provided with two extrusion units 3, and the preset feed port of each extrusion unit 3 corresponds to the discharge port of each spiral channel 10.

[0019] Specifically, a fixing unit 8 is installed between the two wire feeding units 1. The fixing unit 8 is used to firmly connect the two wire feeding units 1 together, ensuring that the wire feeding units 1 maintain a stable relative position during operation, preventing the position of the wire feeding units 1 from shifting due to vibration or external force, thereby ensuring that the grain refiner 2 wire can be accurately fed into the feed port of the molding unit 9.

[0020] Specifically, the first and second spiral channels 10 within the molding unit 9 rotate five times. This design ensures that the grain refiner 2 filament is fully and uniformly plasticized as it passes through the spiral channels 10. The five-turn spiral structure provides sufficient heat conduction path and residence time, ensuring that the filament reaches the ideal plasticization state. Each extrusion unit 3 includes a motor, a housing 5, and two extrusion rollers 6. The extrusion rollers 6 are rotatably mounted inside the housing 5, and the two extrusion rollers 6 are arranged opposite each other. The housing 5 houses a motor, and the motor's drive shaft is connected to the extrusion rollers 6. The motor drives the extrusion rollers 6 to rotate, and the two oppositely arranged extrusion rollers 6 form an extrusion area. When the plasticized grain refiner 2 material exits from the spiral channels 10, it passes through... The extrusion zone between the extrusion rollers 6 serves to transfer the grain refiner 2. The rotation speed of the extrusion rollers 6 can be adjusted to control the output speed of the grain refiner 2 filaments, thereby affecting the quality and performance of the final product. Each extrusion unit 3 is equipped with a telescopic unit 4 on one side. The telescopic unit 4 can adjust the position of the extrusion unit 3, allowing it to move closer to or further away from the discharge port of the molding unit 9 as needed. This design increases the flexibility of the device, allowing the position of the extrusion unit 3 to be adjusted according to the production requirements of different specifications of grain refiner 2 filaments. It also facilitates equipment maintenance and cleaning. When it is necessary to replace the extrusion rollers 6 or clean the channel, the extrusion unit 3 can be moved away through the telescopic unit 4, and then returned to the working position after the operation is completed.

[0021] In actual operation, the two feeding units 1 simultaneously feed the grain refiner 2 filaments into the first and second feed ports of the molding unit 9. After entering the molding unit 9, the filaments pass through the first and second spiral channels 10 respectively. In the spiral channels 10, the filaments are heated and plasticized. At the same time, the spiral structure makes the filaments rotate continuously during the forward movement, ensuring uniform heat distribution. After passing through five spiral channels 10, the plasticized filaments enter the corresponding extrusion unit 3 from the outlet of the spiral channels 10. In the extrusion unit 3, two extrusion rollers 6 transfer the plasticized material, ultimately forming grain refiner 2 filaments with a certain strength and shape, which are used for grain refinement treatment of cast aluminum melt.

[0022] Please refer to Figure 2 This continuous feeding control device for grain refiner in cast and rolled aluminum melt forms double-row corrugated discharge on the feeding trough through a dual-channel design and molding unit 9, increasing the uniformity of mixing; the design of telescopic unit 4 increases the flexibility and maintainability of the device. The entire device has a compact structure, is easy to operate, and is suitable for the continuous supply of grain refiner 2 on cast and rolled aluminum production lines.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A continuous wire feeding control device for grain refiner in cast and rolled aluminum melt, characterized in that, The device includes two wire feeding units, with a molding unit located below each wire feeding unit. The wire feeding units are symmetrically distributed on both sides of the molding unit. The upper surface of the molding unit has a first inlet and a second inlet that extend to the lower surface of the molding unit. The interior of the molding unit has a first spiral channel and a second spiral channel, which are respectively connected to the first inlet and the second inlet. Each inlet corresponds to a preset discharge position of the wire feeding unit. The lower side of the molding unit has two extrusion units, and the preset inlet of each extrusion unit corresponds to the discharge port of each spiral channel.

2. The continuous wire feeding control device for grain refiner in cast and rolled aluminum melt according to claim 1, characterized in that, Each of the extrusion units is equipped with a telescopic unit on one side.

3. The continuous wire feeding control device for grain refiner in cast and rolled aluminum melt according to claim 2, characterized in that, The extrusion unit includes a motor, a housing, and two extrusion rollers. The extrusion rollers are rotatably mounted inside the housing and are arranged opposite to each other. The housing houses the motor, and the drive shaft of the motor is connected to the extrusion rollers.

4. The continuous wire feeding control device for grain refiner in cast and rolled aluminum melt according to claim 1, characterized in that, A fixing unit is installed between the wire feeding units.

5. The continuous wire feeding control device for grain refiner in cast and rolled aluminum melt according to claim 1, characterized in that, The spiral within the spiral channel rotates five times.

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