New spray forming apparatus for magnesium-aluminum alloy casting

Abstract

The utility model discloses a novel spray forming equipment for magnesium-aluminum alloy casting belongs to magnesium-aluminum alloy spray forming casting method field, novel spray forming equipment for magnesium-aluminum alloy casting, including gas flow guide pipe and melt flow guide pipe, melt flow guide pipe end is located inside gas flow guide pipe end, and melt flow guide pipe end is coaxial with gas flow guide pipe and sets up, and the lower end of gas flow guide pipe is installed with condensation block, and the middle part of condensation block is equipped with through -hole, and the inside of condensation block is equipped with water passing groove, and the both ends of condensation block are installed with water pipe on both sides of water passing groove, and gas flow guide pipe is installed with vertical rotation module, and vertical rotation module is installed with horizontal rotation module, can realize through the hole is plugged up by stopper, make the argon of gas flow guide pipe spouts and is blown back melt flow guide pipe from melt flow guide pipe bottom, make the magnesium-aluminum alloy melt in melt flow guide pipe inside is blown back in melting furnace, avoid melt condensation and block melt flow guide pipe.

Description

Technical Field

[0001] This utility model relates to the field of magnesium-aluminum alloy spray forming casting method, and more specifically, to a novel spray forming equipment for magnesium-aluminum alloy casting. Background Technology

[0002] Magnesium-aluminum alloys, as an alloy material that combines the lightness of magnesium with the corrosion resistance of aluminum, are increasingly being used in various industries. Currently, most magnesium-aluminum alloy castings on the market use traditional cooling and forming methods, such as sand casting and metal mold casting. These traditional cooling and forming methods have slow cooling speeds, which can easily lead to coarse microstructures and deterioration of performance. Spray forming in magnesium-aluminum alloy casting can effectively accelerate the cooling speed, making the microstructure of magnesium-aluminum alloys finer and the composition of magnesium-aluminum alloys uniform without obvious segregation. However, after the magnesium-aluminum alloy spray casting is completed, there is a tendency for unflowed magnesium-aluminum alloy melt to remain in the guide tube. This can cause blockage of the guide tube after the magnesium-aluminum alloy melt cools and solidifies. Furthermore, a condensation module needs to be installed at the melt spraying position during the magnesium-aluminum alloy spray casting process, and the condensation module position is prone to atomized magnesium-aluminum alloy condensation and accumulation. Utility Model Content

[0003] To address the problems existing in the prior art, the purpose of this utility model is to provide a novel spray forming equipment for magnesium-aluminum alloy casting. This equipment can block the through hole by using a plug, allowing the argon gas sprayed from the gas guide pipe to be blown back from the bottom of the melt guide pipe. This causes the magnesium-aluminum alloy melt inside the melt guide pipe to be blown back into the melting furnace, preventing the melt from condensing and blocking the melt guide pipe.

[0004] To solve the above problems, the present invention adopts the following technical solution.

[0005] A novel spray forming equipment for magnesium-aluminum alloy casting includes a gas guide pipe and a melt guide pipe. The end of the melt guide pipe is located inside the end of the gas guide pipe, and the end of the melt guide pipe is coaxially arranged with the gas guide pipe. A condensation block is installed at the lower end of the gas guide pipe. A through hole is opened in the middle of the condensation block. A water groove is opened inside the condensation block. Water pipes are installed at both ends of the condensation block on both sides of the water groove. A vertical rotation module is installed on the gas guide pipe. A horizontal rotation module is installed on the vertical rotation module. A baffle is installed on the horizontal rotation module. A stopper is installed on the upper end of the baffle. The water pipe is connected to the water passage trough. The stopper is a flat-topped conical file that matches the through hole. The bottoms of the gas guide pipe and the melt guide pipe are at the same height, and the top of the stopper does not contact the bottoms of the gas guide pipe and the melt guide pipe. This design allows the through hole to be blocked by the stopper, causing the argon gas injected from the gas guide pipe to be blown back into the melt guide pipe from the bottom. This results in the magnesium-aluminum alloy melt inside the melt guide pipe being blown back into the melting furnace, preventing the melt from condensing and clogging the melt guide pipe.

[0006] Furthermore, high-pressure argon gas is introduced into the gas guide pipe, and magnesium-aluminum alloy melt is introduced into the melt guide pipe, so that the magnesium-aluminum alloy melt and argon gas can flow out.

[0007] Furthermore, the inner walls of the melt guide tube and the condenser block through hole are both covered with silicon nitride ceramic, and the roughness of the plug is 80 mesh, which makes it difficult for the magnesium-aluminum alloy melt to condense and adhere to the inner walls of the melt guide tube and the condenser block, and the plug can grind off the magnesium-aluminum alloy adhering to the condenser block through hole.

[0008] Furthermore, the outer end of the cover is provided with an annular protrusion, and the cover can cover the lower end of the through hole, making it difficult for the cover to come off from the middle of the horizontal rotation module.

[0009] Furthermore, the angle between the inclined surface of the stopper and the bottom surface is between 60° and 70°, so that the vertical rotation module is not easily blocked by the inner wall of the through hole when it is driven away from the through hole by the horizontal rotation module and the stop cover.

[0010] Furthermore, the distance between the top of the baffle and the bottom of the gas guide tube and the melt guide tube is 2 mm to 4 mm, so that the argon gas in the gas guide tube can enter from the bottom of the melt guide tube and carry away the magnesium-aluminum alloy melt in the melt guide tube.

[0011] Compared with existing technologies, the advantages of this utility model are: (1) The end of the melt guide tube is located inside the end of the gas guide tube and is coaxially arranged. This coaxial structure enables high-pressure argon gas to uniformly wrap the magnesium-aluminum alloy melt flowing out from the melt guide tube, ensuring that the melt atomization is more uniform. At the same time, the water tank inside the condenser block, together with the water pipe, can quickly cool the atomized melt particles, thereby improving the compositional uniformity and mechanical properties of the final magnesium-aluminum alloy product.

[0012] (2) By blocking the through hole with a plug, the argon gas sprayed by the gas guide pipe is blown back from the bottom of the melt guide pipe to the melt guide pipe, so that the magnesium-aluminum alloy melt inside the melt guide pipe is blown back into the melting furnace, thus preventing the melt from condensing and blocking the melt guide pipe. Attached Figure Description

[0013] Figure 1 This is a perspective view of the entire utility model; Figure 2 This is a perspective view of the overall idle state of this utility model; Figure 3 This is a partial half-sectional perspective view of the present invention; Figure 4 for Figure 3 A magnified view of part A; Figure 5 This is a partial half-section front view schematic diagram of the present invention; Figure 6 for Figure 5 A magnified view of part B.

[0014] Explanation of the labels in the diagram: 1. Gas guide tube; 2. Melt guide tube; 3. Condensate block; 4. Water tank; 5. Water pipe; 6. Vertical rotation module; 7. Horizontal rotation module; 8. Cover; 9. Plug. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Please see Figure 1-6A new type of spray forming equipment for magnesium-aluminum alloy casting includes a gas guide pipe 1 and a melt guide pipe 2. The end of the melt guide pipe 2 is located inside the end of the gas guide pipe 1, and the end of the melt guide pipe 2 is coaxially arranged with the gas guide pipe 1. A condenser block 3 is installed at the lower end of the gas guide pipe 1. A through hole is opened in the middle of the condenser block 3. A water groove 4 is opened inside the condenser block 3. Water pipes 5 are installed at both ends of the condenser block 3 on both sides of the water groove 4. A vertical rotation module 6 is installed on the gas guide pipe 1. A horizontal rotation module 7 is installed on the vertical rotation module 6. A baffle 8 is installed on the horizontal rotation module 7. A stopper 9 is installed on the upper end of the baffle 8. Among them, the water pipe 5 is connected to the water passage 4, the stopper 9 is a flat-topped conical file, the stopper 9 matches the through hole, the bottom of the gas guide pipe 1 and the melt guide pipe 2 are at the same height, and the top of the stopper 9 does not contact the bottom of the gas guide pipe 1 and the melt guide pipe 2.

[0019] Please see Figure 2-4 High-pressure argon gas is introduced into the gas guide pipe 1, and magnesium-aluminum alloy melt is introduced into the melt guide pipe 2, allowing the magnesium-aluminum alloy melt and argon gas to flow out. The inner walls of the melt guide pipe 2 and the through hole of the condenser block 3 are both covered with silicon nitride ceramic, and the roughness of the baffle 9 is 80 mesh, making it difficult for magnesium-aluminum alloy melt to condense and adhere to the inner walls of the melt guide pipe 2 and the condenser block 3, and the baffle 9 can grind off the magnesium-aluminum alloy adhering to the through hole position of the condenser block 3. The outer end of the cover 8 has an annular protrusion, and the cover 8 can cover the lower end of the through hole, making it difficult for the cover 8 to fall off from the middle of the horizontal rotating module 7.

[0020] Please see Figure 3-5 The angle between the inclined surface of the stopper 9 and the bottom surface is between 60° and 70°, which makes it less likely that the vertical rotating module 6 will be blocked by the inner wall of the through hole when the stopper 9 is driven away by the horizontal rotating module 7 and the stopper 8. The distance between the top of the stopper 9 and the bottom of the gas guide tube 1 and the melt guide tube 2 is 2 mm to 4 mm, which allows the argon gas in the gas guide tube 1 to enter from the bottom of the melt guide tube 2 and carry away the magnesium-aluminum alloy melt in the melt guide tube 2.

[0021] During casting, high-pressure argon gas is first introduced through gas guide pipe 1, and then magnesium-aluminum alloy melt is introduced through melt guide pipe 2. The magnesium-aluminum alloy melt flows out from the bottom of melt guide pipe 2. At the same time, high-pressure argon gas atomizes and sprays out the flowing magnesium-aluminum alloy melt. While the magnesium-aluminum alloy melt is atomized and sprayed out, cooling water flows through water pipe 5 through water tank 4 to cool the atomized magnesium-aluminum alloy melt. After the magnesium-aluminum alloy melt casting is completed, a small amount of molten magnesium-aluminum alloy remains on the inner wall of the melt guide tube 2. At this time, the vertical rotation module 6 is controlled to rotate the horizontal rotation module 7 and the baffle 8 to a horizontal position, so that the baffle 8 covers the lower end of the condensation block 3. At this time, the plug 9 blocks the through hole. While the vertical rotation module 6 is working, the horizontal rotation module 7 is controlled to rotate the baffle 8, and the baffle 8 drives the plug 9 to rotate. The plug 9 grinds away the atomized magnesium-aluminum alloy melt that has condensed and adhered to the inner wall of the through hole. When the plug 9 blocks the through hole, the horizontal rotation module 7 is stopped. At this time, high-pressure argon gas is ejected from the bottom of the gas guide pipe 1. The high-pressure argon gas is blocked by the baffle 9 and its flow direction is changed. The high-pressure argon gas enters through the bottom of the melt guide pipe 2 and blows away the small amount of magnesium-aluminum alloy melt retained inside the melt guide pipe 2 to prevent the magnesium-aluminum alloy melt from condensing and blocking the melt guide pipe 2. The through hole is blocked by the baffle 9, so that the argon gas ejected from the gas guide pipe 1 is blown back from the bottom of the melt guide pipe 2 to the melt guide pipe 2, so that the magnesium-aluminum alloy melt inside the melt guide pipe 2 is blown back into the melting furnace, preventing the melt from condensing and blocking the melt guide pipe 2.

[0022] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A novel spray forming equipment for magnesium-aluminum alloy casting, comprising a gas guide pipe (1) and a melt guide pipe (2), characterized in that: The end of the melt guide tube (2) is located inside the end of the gas guide tube (1), and the end of the melt guide tube (2) is coaxially arranged with the gas guide tube (1). A condenser block (3) is installed at the lower end of the gas guide tube (1). A through hole is opened in the middle of the condenser block (3). A water groove (4) is opened inside the condenser block (3). Water pipes (5) are installed on both sides of the water groove (4) at both ends of the condenser block (3). A vertical rotation module (6) is installed on the gas guide tube (1). A horizontal rotation module (7) is installed on the vertical rotation module (6). A baffle (8) is installed on the horizontal rotation module (7). A baffle plug (9) is installed on the upper end of the baffle (8). The water pipe (5) is connected to the water tank (4), the stopper (9) is a flat-topped conical file, the stopper (9) matches the through hole, the bottom of the gas guide pipe (1) and the melt guide pipe (2) are at the same height, and the top of the stopper (9) does not contact the bottom of the gas guide pipe (1) and the melt guide pipe (2).

2. The novel spray forming equipment for magnesium-aluminum alloy casting according to claim 1, characterized in that: The gas guide pipe (1) is supplied with high-pressure argon gas, and the melt guide pipe (2) is supplied with magnesium-aluminum alloy melt.

3. The novel spray forming equipment for magnesium-aluminum alloy casting according to claim 1, characterized in that: The inner walls of the through holes of the melt guide tube (2) and the condenser block (3) are covered with silicon nitride ceramic, and the roughness of the plug (9) is 80 mesh.

4. The novel spray forming equipment for magnesium-aluminum alloy casting according to claim 1, characterized in that: The outer end of the cover (8) is provided with an annular protrusion, and the cover (8) can cover the lower end of the through hole.

5. The novel spray forming equipment for magnesium-aluminum alloy casting according to claim 1, characterized in that: The angle between the inclined surface and the bottom surface of the stopper (9) is between 60° and 70°.

6. The novel spray forming equipment for magnesium-aluminum alloy casting according to claim 1, characterized in that: The distance between the top of the plug (9) and the bottom of the gas guide tube (1) and the melt guide tube (2) is 2 mm to 4 mm.

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