Alloy raw material part casting mold

Abstract

The utility model provides an alloy raw material part casting mold which is characterized in that a casting cylinder is rotatably mounted on a mounting seat, and a first channel and a second channel are arranged in the side wall of the casting cylinder. Wherein cooling water is injected into the first channel, and high-temperature oil is injected into the second channel. And the molten metal in the casting space is cooled through cooling water in the first channel, and heat preservation is conducted on the molten metal in the casting space through high-temperature oil in the second channel. Therefore, temperature control is achieved, and the cooling rates of all the parts are kept consistent. And meanwhile, the casting cylinder is inclined, so that less air holes are generated in the solidification process of molten metal, and the occurrence of surface cracks or internal fractures of materials is reduced.

Description

Technical Field

[0001] This utility model generally relates to the field of aluminum alloy casting technology, and specifically to a casting mold for alloy raw materials. Background Technology

[0002] In the manufacturing process of aluminum alloy extruded profiles, aluminum alloy round bars (cast bars) serve as the basic raw material, and their internal quality and microstructure uniformity directly determine the mechanical properties and surface quality of the final profile. Currently, the industry generally uses a semi-continuous casting process to prepare aluminum alloy round bars. This process involves pouring molten aluminum into a crystallizer and using a bottom water cooling system to achieve layer-by-layer solidification, and is generally only suitable for large-scale industrial mass production.

[0003] However, with the increasing demand for high-precision, high-strength aluminum alloy profiles, the process of developing aluminum alloy cast rods using semi-continuous casting to complete extruded profiles involves a long production process, high production costs, and significant waste of raw materials. In contrast, using ordinary casting for round rods results in uneven cooling rates at different locations during the casting process, leading to the formation of coarse columnar crystals and central segregation in the rod's cross-section, resulting in significant differences in grain size distribution (e.g., grain size deviation from the surface to the core can reach over 30%). Furthermore, insufficient feeding of the melt at the solidification front easily leads to microscopic shrinkage porosity and gas defects. These defects can easily become stress concentration sources during subsequent hot extrusion, causing surface cracks or internal fractures in the profile. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a casting mold for alloy raw materials.

[0005] This utility model provides a casting mold for alloy raw materials, including:

[0006] Mounting base;

[0007] A casting cylinder, rotatably mounted on the mounting base, having an internal casting space for containing molten metal; the casting cylinder having an opening for injecting molten metal into the casting space;

[0008] The outer surface of the sidewall of the casting cylinder has a first connection port and a second connection port; the interior of the sidewall of the casting cylinder has a first channel; the two ends of the first channel are respectively connected to the first connection port and the second connection port; the first channel is used to inject cooling water to cool the molten metal.

[0009] The outer surface of the sidewall of the casting cylinder also has a third connection port and a fourth connection port; the interior of the sidewall of the casting cylinder also has a second channel; the two ends of the second channel are respectively connected to the third connection port and the fourth connection port; the second channel is used to inject high-temperature oil to keep the molten metal warm.

[0010] According to the technical solution provided by this utility model, there are multiple first connection ports, multiple second connection ports, multiple third connection ports and multiple fourth connection ports; there are also multiple first channels and multiple second channels;

[0011] The plurality of first channels and the plurality of second channels are evenly distributed along the sidewall of the casting cylinder, and there is at least one first channel between each two adjacent second channels.

[0012] According to the technical solution provided by this utility model, the plurality of first channels are staggered with each other along the extension direction of the casting cylinder.

[0013] According to the technical solution provided by this utility model, the first connection port is located away from the opening, and the second connection port is located close to the opening;

[0014] The first connection port is used to inject cooling water into the first channel; the second connection port is used to discharge the cooling water from the first channel.

[0015] According to the technical solution provided by this utility model, the third connection port is located away from the opening, and the fourth connection port is located close to the opening;

[0016] The third connection port is used to inject high-temperature oil into the second channel; the fourth connection port is used to discharge the high-temperature oil from the second channel.

[0017] According to the technical solution provided by this utility model, a driving device is installed on the mounting base; the driving shaft of the driving device is fixedly connected to the casting cylinder and is used to drive the casting cylinder to rotate relative to the mounting base.

[0018] According to the technical solution provided by this utility model, a first infrared sensor is provided on the mounting base for emitting and receiving infrared rays; a sensing sheet is provided on the outer wall of the casting cylinder for reflecting infrared rays.

[0019] When the first infrared sensor is directly opposite the sensing plate, the extension direction of the casting cylinder has a set angle with the horizontal direction;

[0020] The driving device is also used to control the casting cylinder to stop rotating when the first infrared sensor is facing the sensing plate.

[0021] According to the technical solution provided by this utility model, a second infrared sensor is also provided on the mounting base for emitting and receiving infrared rays;

[0022] When the second infrared sensor is directly opposite the sensing plate, the extension direction of the casting cylinder is perpendicular to the horizontal direction.

[0023] The beneficial effects of this utility model are as follows:

[0024] The casting cylinder is rotatably mounted on a mounting base. The inner side wall of the casting cylinder has a first channel and a second channel. Cooling water is injected into the first channel, and high-temperature oil is injected into the second channel. The cooling water in the first channel cools the molten metal in the casting space, while the high-temperature oil in the second channel keeps the molten metal in the casting space warm. This achieves temperature control, ensuring a consistent cooling rate across all parts. Simultaneously, tilting the casting cylinder reduces the formation of air bubbles during the solidification process of the molten metal, decreasing the likelihood of surface cracks or internal fractures in the material. Attached Figure Description

[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the structure of a casting mold for alloy raw materials;

[0027] Figure 2 This is a front view of a casting mold for alloy raw materials;

[0028] Figure 3 This is the front view of the casting cylinder;

[0029] Figure 4 This is a cross-sectional view of the casting cylinder;

[0030] Figure 5 This is a top view of the casting cylinder;

[0031] Figure 6 This is the front view of the casting cylinder when it is at a set angle to the horizontal direction.

[0032] Figure 7 This is a rear view of the casting cylinder when it is at a set angle to the horizontal direction.

[0033] Figure 8 This is a schematic diagram of the mounting base near the casting cylinder.

[0034] Figure 9 This is a side view of the casting cylinder;

[0035] The components are: 1. Mounting base; 2. Casting cylinder; 3. Opening; 4. First connection port; 5. Second connection port; 6. First channel; 7. Third connection port; 8. Fourth connection port; 9. Second channel; 10. Drive device; 11. First infrared sensor; 12. Sensing plate; 13. Second infrared sensor; 14. Rotating shaft; 15. Connecting piece. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0037] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] Please refer to Figure 1-2 This utility model provides a casting mold for alloy raw materials, comprising:

[0039] Mounting base 1;

[0040] A casting cylinder 2 is rotatably mounted on the mounting base 1 and has a casting space inside; the casting space is used to contain molten metal; the casting cylinder 2 has an opening 3 for injecting molten metal into the casting space;

[0041] The outer surface of the sidewall of the casting cylinder 2 has a first connection port 4 and a second connection port 5; the inside of the sidewall of the casting cylinder 2 is provided with a first channel 6; the two ends of the first channel 6 are respectively connected to the first connection port 4 and the second connection port 5; the first channel 6 is used to inject cooling water to cool the molten metal.

[0042] The outer surface of the side wall of the casting cylinder 2 also has a third connection port 7 and a fourth connection port 8; the interior of the side wall of the casting cylinder 2 is also provided with a second channel 9; the two ends of the second channel 9 are respectively connected to the third connection port 7 and the fourth connection port 8; the second channel 9 is used to inject high-temperature oil to keep the molten metal warm.

[0043] Specifically, neither the first channel 6 nor the second channel 9 is connected to the casting space.

[0044] The mounting base 1 has a connector 15 with a rotating hole; a rotating shaft 14 is also fixed on the outer wall of the casting cylinder 2. The rotating shaft 14 is rotatably mounted in the rotating hole of the connector 15.

[0045] Moreover, reference Figure 3-5 This utility model also has the following design features:

[0046] Furthermore, the first connection port 4, the second connection port 5, the third connection port 7, and the fourth connection port 8 are all multiple; the first channel 6 and the second channel 9 are also multiple.

[0047] Multiple first channels 6 and multiple second channels 9 are evenly distributed along the sidewall of the casting cylinder 2, and there is at least one first channel 6 between each two adjacent second channels 9.

[0048] In this embodiment, there are 8 first channels 6 and 4 second channels; there are 8 first connection ports 4 and 8 second connection ports 5, and 4 third connection ports 7 and 4 fourth connection ports 8. There are two first channels 6 between two adjacent second channels 9.

[0049] The plurality of first channels 6 are staggered with each other along the extension direction of the casting cylinder 2.

[0050] Based on the above setup, cooling water can be used to cool the molten metal in each part of the casting space, or high-temperature oil can be used to keep the molten metal in each part warm; so as to balance the cooling rate of each part of the molten metal and keep the cooling rate of each part consistent.

[0051] Furthermore, the connection ports and the methods for injecting cooling water or high-temperature oil are as follows:

[0052] The first connection port 4 is located away from the opening 3, and the second connection port 5 is located close to the opening 3;

[0053] The first connection port 4 is used to inject cooling water into the first channel 6; the second connection port 5 is used to discharge the cooling water from the first channel 6.

[0054] Similarly, the third connection port 7 is located away from the opening 3, and the fourth connection port 8 is located close to the opening 3;

[0055] The third connection port 7 is used to inject high-temperature oil into the second channel 9; the fourth connection port 8 is used to discharge the high-temperature oil from the second channel 9.

[0056] Due to the aforementioned injection method, both cooling water and high-temperature oil can pass through the channel relatively slowly, exchanging heat with the molten metal, thus effectively controlling the temperature of the cooling molten metal.

[0057] Compared with the prior art, the casting cylinder 2 of this utility model adopts 4 groups of 8 pairs of first channels 6 that are staggered and evenly arranged around the mold, and cooling water is alternately passed from bottom to top. This can quickly and efficiently enhance the cooling of molten metal (aluminum rod) according to the temperature gradient, and reduce the generation of shrinkage cavities and porosity quality defects.

[0058] Meanwhile, four sets of second channels 9 are evenly arranged around the casting cylinder 2, through which high-temperature oil is passed from top to bottom. This allows for rapid and uniform heating of the casting cylinder 2 according to the temperature gradient, thereby avoiding excessive cooling in a few parts, achieving a heat preservation effect, and reducing cold shut defects.

[0059] The bottom of the casting space of this invention is hemispherical. When producing aluminum rods, the angle between the casting cylinder 2 and the horizontal direction is adjusted to 55°, which can reduce gas entrapment and ensure the quality of the aluminum rods.

[0060] This utility model of aluminum alloy round bar casting mold uses a small resistance furnace to melt the alloy, which improves production efficiency and avoids waste of raw materials. At the same time, the aluminum alloy round bars produced by using the aluminum alloy round bar casting mold have a more uniform and finer grain size in their microstructure, which improves the mechanical properties of the extruded parts and is superior to traditional semi-continuous casting, thus reducing production costs and production cycle.

[0061] refer to Figure 6-7 To facilitate the adjustment of the angle between the casting cylinder 2 and the horizontal direction, this utility model also has the following design:

[0062] Furthermore, a drive device 10 is installed on the mounting base 1; the drive shaft of the drive device 10 is fixedly connected to the casting cylinder 2, and is used to drive the casting cylinder 2 to rotate relative to the mounting base 1.

[0063] Among them, the drive device 10 is a servo motor, which can more accurately adjust the tilt angle of the casting cylinder 2.

[0064] Furthermore, a first infrared sensor 11 is provided on the mounting base 1 for emitting and receiving infrared rays; a sensing plate 12 is provided on the outer side wall of the casting cylinder 2 for reflecting infrared rays.

[0065] When the first infrared sensor 11 is directly opposite the sensing plate 12, the extension direction of the casting cylinder 2 has a set angle with the horizontal direction;

[0066] As mentioned above, the specific angle is set to 55°.

[0067] Operating mode: The first infrared sensor 11 emits infrared rays parallel to the rotation axis of the casting cylinder 2 towards the casting cylinder 2. The casting cylinder 2 rotates under the drive of the drive device 10. The sensing plate 12 set on the outer wall of the casting cylinder 2 moves together with the casting cylinder 2 until the infrared rays irradiate the sensing plate 12. The sensing plate 12 reflects the infrared rays back to the first infrared sensor 11. At this time, it means that the first infrared sensor 11 and the sensing plate 12 are facing each other.

[0068] Furthermore, when the first infrared sensor 11 and the sensing plate 12 are directly opposite each other, the driving device 10 controls the casting cylinder 2 to stop rotating, so that the casting cylinder 2 is clamped at 55° with the horizontal direction.

[0069] In some embodiments, two first infrared sensors 11 are provided and are located on the mounting base 1, symmetrically positioned about the vertical casting cylinder 2 as the axis of symmetry. This allows the first infrared sensors 11 to interact with the sensing element 12 when the casting cylinder 2 rotates in both directions, facilitating the drive device 10 to control the casting cylinder 2 to be in a state at 55° to the horizontal.

[0070] Further, refer to Figure 8-9 The mounting base 1 is also provided with a second infrared sensor 13 for emitting and receiving infrared rays;

[0071] When the second infrared sensor 13 is directly opposite the sensing plate 12, the extension direction of the casting cylinder 2 is perpendicular to the horizontal direction.

[0072] Specifically, in some cases where the casting cylinder 2 needs to be set vertically, the second infrared sensor 13 and the sensing plate 12 are used to keep the casting cylinder 2 in a vertical state according to the same principle.

[0073] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this utility model is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.

Claims

1. A casting mold for alloy raw materials, characterized in that, include: Mounting base (1); A casting cylinder (2) is rotatably mounted on the mounting base (1) and has a casting space inside; the casting space is used to contain molten metal; the casting cylinder (2) has an opening (3) for injecting molten metal into the casting space; The outer surface of the side wall of the casting cylinder (2) has a first connection port (4) and a second connection port (5); the inside of the side wall of the casting cylinder (2) is provided with a first channel (6); the two ends of the first channel (6) are respectively connected to the first connection port (4) and the second connection port (5); the first channel (6) is used to inject cooling water to cool the molten metal; The outer surface of the side wall of the casting cylinder (2) also has a third connection port (7) and a fourth connection port (8); the inside of the side wall of the casting cylinder (2) is also provided with a second channel (9); the two ends of the second channel (9) are respectively connected to the third connection port (7) and the fourth connection port (8); the second channel (9) is used to inject high-temperature oil to keep the molten metal warm.

2. The alloy raw material casting mold according to claim 1, characterized in that, The first connection port (4), the second connection port (5), the third connection port (7) and the fourth connection port (8) are all multiple; the first channel (6) and the second channel (9) are also multiple; A plurality of first channels (6) and a plurality of second channels (9) are evenly distributed along the sidewall of the casting cylinder (2), and there is at least one first channel (6) between each two adjacent second channels (9).

3. The alloy raw material casting mold according to claim 2, characterized in that, The plurality of first channels (6) are staggered relative to each other along the extension direction of the casting cylinder (2).

4. The alloy raw material casting mold according to claim 1, characterized in that, The first connection port (4) is located away from the opening (3), and the second connection port (5) is located close to the opening (3); The first connection port (4) is used to inject cooling water into the first channel (6); the second connection port (5) is used to discharge the cooling water in the first channel (6).

5. The alloy raw material casting mold according to claim 1, characterized in that, The third connection port (7) is located away from the opening (3), and the fourth connection port (8) is located close to the opening (3); The third connection port (7) is used to inject high-temperature oil into the second channel (9); the fourth connection port (8) is used to discharge the high-temperature oil in the second channel (9).

6. The alloy raw material casting mold according to claim 1, characterized in that, A drive device (10) is installed on the mounting base (1); the drive shaft of the drive device (10) is fixedly connected to the casting cylinder (2) and is used to drive the casting cylinder (2) to rotate relative to the mounting base (1).

7. The alloy raw material casting mold according to claim 6, characterized in that, The mounting base (1) is provided with a first infrared sensor (11) for emitting and receiving infrared rays; the outer wall of the casting cylinder (2) is provided with a sensor sheet (12) for reflecting infrared rays. When the first infrared sensor (11) is directly opposite the sensing sheet (12), the extension direction of the casting cylinder (2) has a set angle with the horizontal direction; The drive device (10) is also used to control the casting cylinder (2) to stop rotating when the first infrared sensor (11) is facing the sensing plate (12).

8. The alloy raw material casting mold according to claim 7, characterized in that, The mounting base (1) is also provided with a second infrared sensor (13) for emitting and receiving infrared rays; When the second infrared sensor (13) is directly opposite the sensing plate (12), the extension direction of the casting cylinder (2) is perpendicular to the horizontal direction.

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