Matching type riser tube capable of reducing accumulated slag of molten aluminum

Abstract

The utility model relates to the technical field of riser tubes, in particular to a matched riser tube capable of reducing molten aluminum slag deposition, which comprises a riser tube, a tube orifice is arranged at the top of the riser tube, a flange is fixedly connected to the surface of the tube orifice, a lower sheath is fixedly connected to the surface of the riser tube, and a heat insulation layer is fixedly connected to the inner wall of the lower sheath. A heating pipe is fixedly connected to the interior of the lower sheath, an upper sheath is movably connected to the top of the lower sheath, an upper protection cushion layer is fixedly connected to the inner wall of the upper sheath, and a lower protection cushion layer is fixedly connected to the top of the lower sheath. The liquid rising tube is provided with the lower sheath, the upper sheath, the upper protective cushion layer and the lower protective cushion layer, certain buffering is provided when the liquid rising tube is collided, the possibility of damage is reduced, the service life of the liquid rising tube is prolonged, the heat preservation layer and the heating tube are arranged, molten aluminum is prevented from being solidified at a tube opening to cause slag accumulation, and the tube diameter is prevented from being reduced.

Description

Technical Field

[0001] This utility model belongs to the field of riser technology, specifically relating to a matching riser that reduces slag accumulation in molten aluminum. Background Technology

[0002] In automotive wheel manufacturing, riser pipes play a crucial role in the casting process. As a key component in anti-gravity casting, they are used to fill the mold from bottom to top with molten metal under pressure, overcoming gravity and other resistance to form the casting. In anti-gravity casting, molten metal fills the mold under the combined action of gravity and an external driving force. The external driving force is the dominant force, enabling the molten metal to overcome its own weight, mold cavity resistance, and other external forces to fill the mold. The riser pipe guides the molten metal from bottom to top into the mold cavity through pressure, thereby forming the casting.

[0003] Most existing wheel hub manufacturers use integrated conventional riser pipes, which have the following main disadvantages: First, the riser pipe has a short lifespan, lasting only two months; second, slag easily accumulates at the pipe opening, and the slag accumulation is severe, affecting the pass rate. Therefore, we have proposed a complementary riser pipe to reduce slag accumulation in molten aluminum. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a matching riser pipe that reduces aluminum molten slag accumulation, so as to solve the problems mentioned in the background art that most wheel hub manufacturers use integrated conventional riser pipes, which have the following disadvantages: 1. The riser pipe has a short lifespan, only two months; 2. The riser pipe opening is prone to slag accumulation, and the slag accumulation is serious, affecting the pass rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a matching riser pipe for reducing aluminum molten slag accumulation, comprising a riser pipe, an opening at the top of the riser pipe, a flange fixedly connected to the surface of the opening, a lower sheath fixedly connected to the surface of the riser pipe, an insulation layer fixedly connected to the inner wall of the lower sheath, a heating tube fixedly connected to the inside of the lower sheath, an upper sheath movably connected to the top of the lower sheath, a protrusion fixedly connected to the inner wall of the upper sheath, a sealing gasket movably connected to the surface of the protrusion, an upper protective gasket fixedly connected to the inner wall of the upper sheath, a lower protective gasket fixedly connected to the top of the lower sheath, and a fixing bolt connecting the interior of the upper and lower sheaths by threads.

[0006] Preferably, the insulation layer is made of rock wool.

[0007] Preferably, the heating element is electrically connected to an external power source.

[0008] Preferably, the inner diameter of the pipe opening is larger than the inner diameter of the riser pipe.

[0009] Preferably, the upper protective pad and the lower protective pad are made of PVC material.

[0010] Preferably, the cross-section of the protrusion is T-shaped, and a groove is formed on the surface of the sealing gasket, through which the sealing gasket is fitted onto the surface of the protrusion.

[0011] Preferably, the surfaces of the upper sheath and the lower sheath are provided with four sets of threaded grooves, and the fixing bolts install the upper sheath on the surface of the lower sheath through the threaded grooves. The surfaces of the upper sheath, the upper protective pad, the flange and the lower protective pad are all provided with mounting grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This type of riser pipe for reducing aluminum molten slag accumulation is equipped with a lower sheath, an upper sheath, an upper protective pad, and a lower protective pad. The lower sheath is fitted over the outside of the riser pipe to protect its surface. The flange at the pipe opening is fitted with an upper sheath to prevent the riser pipe and flange from directly contacting the casting mold, thus reducing the possibility of damage to the riser pipe. At the same time, the upper and lower protective pads protect the pipe opening and flange, providing a certain buffer when subjected to impact, further reducing the possibility of damage and improving the service life of the riser pipe.

[0014] 2. This type of riser pipe for reducing aluminum molten slag accumulation is equipped with an insulation layer, a heating pipe, a protrusion, and a sealing gasket. The insulation layer isolates the surface of the riser pipe from the outside environment, keeping the riser pipe body warm and preventing the internal aluminum molten ... Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the structure of the upper sheath, protrusion, sealing gasket, and upper protective gasket of this utility model;

[0018] Figure 4 This is a partial exploded view of the structure of this utility model;

[0019] Figure 5This is a partial exploded cross-sectional view of the present invention.

[0020] In the diagram: 1. Lifting pipe; 2. Pipe opening; 3. Flange; 4. Lower sheath; 5. Insulation layer; 6. Heating pipe; 7. Upper sheath; 8. Protrusion; 9. Sealing gasket; 10. Upper protective gasket; 11. Lower protective gasket; 12. Fixing bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 One embodiment provided by this utility model:

[0023] A type of riser pipe for reducing slag accumulation in molten aluminum includes a riser pipe 1, a pipe opening 2 at the top of the riser pipe 1, a flange 3 fixedly connected to the surface of the pipe opening 2, a lower sheath 4 fixedly connected to the surface of the riser pipe 1, an insulation layer 5 fixedly connected to the inner wall of the lower sheath 4, a heating tube 6 fixedly connected inside the lower sheath 4, an upper sheath 7 movably connected to the top of the lower sheath 4, a protrusion 8 fixedly connected to the inner wall of the upper sheath 7, a sealing gasket 9 movably connected to the surface of the protrusion 8, an upper protective gasket 10 fixedly connected to the inner wall of the upper sheath 7, and a lower protective gasket 11 fixedly connected to the top of the lower sheath 4. The upper sheath 7 and the lower sheath 4 are internally connected by threaded bolts 12. The lower sheath 4, upper sheath 7, upper protective gasket 10, and lower protective gasket 11 are configured. The lower sheath 4 is fitted over the outside of the riser pipe 1 to protect its surface. The flange 3 at the pipe opening 2 is fitted with the upper sheath 7. To prevent direct contact between the riser pipe 1 and flange 3 and the casting, the possibility of damage to the riser pipe 1 is reduced. At the same time, the upper protective pad 10 and the lower protective pad 11 protect the pipe opening 2 and flange 3, providing a certain buffer when impacted, further reducing the possibility of damage and extending the service life of the riser pipe 1. An insulation layer 5, a heating pipe 6, a protrusion 8, and a sealing pad 9 are provided. The insulation layer 5 isolates the surface of the riser pipe 1 from the outside environment, keeping the body of the riser pipe 1 warm and preventing the internal aluminum liquid from cooling and solidifying. The heating pipe 6 heats the pipe opening 2, melting the solidified aluminum liquid and preventing the aluminum liquid from solidifying at the pipe opening 2 and causing slag accumulation, thus preventing the pipe diameter from decreasing. The cooperation between the protrusion 8 and the sealing pad 9 ensures that the sealing pad 9 will not shift when installed, increasing the sealing performance of the flange 3 connection. The upper protective sleeve 7 can be removed by fixing bolts 12, facilitating maintenance of the internal structure.

[0024] Furthermore, the insulation layer 5 is made of rock wool. The insulation layer 5 isolates the surface of the riser pipe 1 from the outside world, and insulates the body of the riser pipe 1 to prevent the internal aluminum liquid from cooling and solidifying. Rock wool has good fire resistance and insulation performance and is suitable for high-temperature environments.

[0025] Furthermore, the heating tube 6 is electrically connected to an external power source. The heating tube 6 is activated by the external power source to heat the tube opening 2, melting the solidified aluminum liquid and preventing the aluminum liquid from solidifying at the tube opening 2 and causing slag accumulation.

[0026] Furthermore, the inner diameter of the pipe opening 2 is larger than the inner diameter of the riser pipe 1. When the aluminum liquid accumulates slag at the pipe opening 2, the wider pipe opening 2 will not affect the use of the riser pipe 1.

[0027] Furthermore, the upper protective pad 10 and the lower protective pad 11 are made of PVC material. The upper protective pad 10 and the lower protective pad 11 protect the pipe opening 2 and the flange 3, and provide a certain buffer when they are hit, further reducing the possibility of damage.

[0028] Furthermore, the cross-section of the protrusion 8 is T-shaped, and a groove is opened on the surface of the sealing gasket 9. The sealing gasket 9 is fitted onto the surface of the protrusion 8 through the groove. Through the cooperation between the protrusion 8 and the sealing gasket 9, the sealing gasket 9 will not shift when it is installed, thus increasing the sealing performance of the flange 3 connection.

[0029] Furthermore, four sets of threaded grooves are provided on the surfaces of the upper sheath 7 and the lower sheath 4. The fixing bolts 12 install the upper sheath 7 on the surface of the lower sheath 4 through the threaded grooves. The surfaces of the upper sheath 7, the upper protective gasket 10, the flange 3 and the lower protective gasket 11 are all provided with mounting grooves. The upper sheath 7 can be removed by fixing bolts 12, which facilitates the maintenance of the internal structure. The flange 3 is connected to other pipes through the mounting grooves.

[0030] Working principle: The upper sheath 7 and the lower sheath 4 protect the surfaces of the riser pipe 1 and the flange 3, preventing them from directly contacting the casting and reducing the possibility of damage to the riser pipe 1. At the same time, the upper protective pad 10 and the lower protective pad 11 protect the pipe opening 2 and the flange 3, providing a certain buffer when impacted. The insulation layer 5 isolates the surface of the riser pipe 1 from the outside world, keeping the body of the riser pipe 1 warm and preventing the internal aluminum liquid from cooling and solidifying. The heating pipe 6 heats the pipe opening 2, melting the solidified aluminum liquid and preventing the aluminum liquid from solidifying at the pipe opening 2 and causing slag accumulation. The upper sheath 7 can be removed by fixing bolts 12 for easy maintenance of the internal structure.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A matching riser pipe for reducing slag accumulation in molten aluminum, comprising a riser pipe (1), characterized in that: The top of the riser pipe (1) is provided with a pipe opening (2), and a flange (3) is fixedly connected to the surface of the pipe opening (2). A lower protective sleeve (4) is fixedly connected to the surface of the riser pipe (1). An insulation layer (5) is fixedly connected to the inner wall of the lower protective sleeve (4). A heating pipe (6) is fixedly connected to the inside of the lower protective sleeve (4). An upper protective sleeve (7) is movably connected to the top of the lower protective sleeve (4). A protrusion (8) is fixedly connected to the inner wall of the upper protective sleeve (7). A sealing gasket (9) is movably connected to the surface of the protrusion (8). An upper protective gasket (10) is fixedly connected to the inner wall of the upper protective sleeve (7). A lower protective gasket (11) is fixedly connected to the top of the lower protective sleeve (4). The upper protective sleeve (7) and the lower protective sleeve (4) are connected by a fixing bolt (12) through a thread.

2. The matching riser pipe for reducing slag accumulation in molten aluminum according to claim 1, characterized in that: The insulation layer (5) is made of rock wool.

3. The matching riser pipe for reducing slag accumulation in molten aluminum according to claim 1, characterized in that: The heating element (6) is electrically connected to an external power source.

4. The matching riser pipe for reducing slag accumulation in molten aluminum according to claim 1, characterized in that: The inner diameter of the pipe opening (2) is larger than the inner diameter of the riser pipe (1).

5. A matching riser pipe for reducing slag accumulation in molten aluminum according to claim 1, characterized in that: The upper protective pad (10) and the lower protective pad (11) are made of PVC material.

6. The matching riser pipe for reducing slag accumulation in molten aluminum according to claim 1, characterized in that: The cross-section of the protrusion (8) is T-shaped, and the surface of the sealing gasket (9) is provided with a groove. The sealing gasket (9) is connected to the surface of the protrusion (8) through the groove.

7. A matching riser pipe for reducing slag accumulation in molten aluminum according to claim 1, characterized in that: The upper sheath (7) and the lower sheath (4) are provided with four sets of threaded grooves. The fixing bolt (12) installs the upper sheath (7) on the surface of the lower sheath (4) through the threaded grooves. The upper sheath (7), the upper protective pad (10), the flange (3) and the lower protective pad (11) are all provided with mounting grooves.

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