A portable aluminum alloy casting device and pouring method

Abstract

The present invention discloses a portable aluminum alloy casting device and a pouring method, which belongs to the field of metal casting technology, and includes: a tilting mechanism for rotating a crucible, which is composed of a bracket, a rotating shaft, a placement groove, and a pressing plate; a filtering mechanism for filtering the aluminum liquid flowing down from the clamp pot, which is composed of a filter box, a storage tank, a flow trough, and a support frame; a pouring mechanism for pouring the filtered aluminum liquid, which is composed of a mold, a rotating seat, a limit block, and an L-shaped frame. The present invention solves the problem in the prior art that experimental ingots are defective due to the non-standard and unified crucible clamping and pouring methods and the lack of a small filtering device.

Description

Technical Field

[0001] The invention belongs to the technical field of metal casting, and in particular relates to a portable aluminum alloy casting device and a pouring method. Background Art

[0002] In the process of research and development of existing aluminum alloy ingots, small rod diameter ingots for production tests are usually melted in a crucible test furnace. The main problems are: First, during pouring, the existing technology is that a single person holds a crucible filled with aluminum liquid and pours the aluminum liquid into an inclined mold. Since the crucible is held by a single person, it will shake during pouring due to the large weight of the crucible, affecting the stability of the pouring liquid flow; second, since it is a small rod diameter experimental ingot, there is no matching filtering device during pouring in the existing technology, which will lead to more defects such as slag inclusion and looseness in the ingot; third, at the end of pouring, the inclined mold needs to be upright, and the liquid flow is continuous during the uprighting process. The existing technology uses a clamp to clamp the mold to make it upright. This method is difficult to cooperate with the liquid flow. During the uprighting process, the pouring position must be constantly adjusted, which can easily lead to liquid flow interruption. In addition, after the mold is upright, the aluminum liquid in the mold will shake, and the unstable liquid surface will easily bring the surface oxide belt into the aluminum liquid, causing defects in the ingot. Summary of the invention

[0003] In view of this, the object of the present invention is to provide a portable aluminum alloy casting device and pouring method, in order to solve the problem in the prior art that experimental ingots are defective due to non-standard and unified crucible clamping, pouring methods and lack of small filtering devices.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The invention provides a portable aluminum alloy casting device, comprising: a tilting mechanism, which is used for rotating a crucible and is composed of a bracket, a rotating shaft, a placing groove and a pressing plate, wherein the placing groove is rotatably arranged on the bracket through the rotating shaft, a clamp pot is placed therein and the clamp pot is fixed by a pressing plate arranged at the mouth of the placing groove; a filtering mechanism, which is used for filtering aluminum liquid flowing down from the clamp pot and is composed of a filter box, a storage tank, a flow channel and a supporting frame, wherein the storage tank is arranged on the supporting frame, the filter box is arranged on the storage tank, and the flow channel is connected to the storage tank; a pouring mechanism, which is used for pouring the filtered aluminum liquid and is composed of a mold, a rotating seat, a limiting block and an L-shaped frame, wherein the mouth of the mold is located below an outlet of the flow channel, the mold is placed in the rotating seat, the rotating seat is rotatably connected to the L-shaped frame, and the limiting block can be placed at the inner corner of the L-shaped frame and supports the rotating seat to be tilted relative to the vertical direction.

[0006] Furthermore, the bracket and the support frame are both lifting structures, and the two are integrated on a base.

[0007] Furthermore, a rotating disk is provided on one side of the rotating shaft.

[0008] Furthermore, a ceramic filter is provided in the filter box.

[0009] Furthermore, the filter box is in a trumpet-shaped shape, with a large end facing upward and a small end connected to the storage tank.

[0010] Furthermore, the flow trough is provided with a flow channel in an inverted eight-shaped shape along the flow direction of the aluminum liquid.

[0011] Furthermore, the rotating seat is provided with a shift rod which abuts against the yielding notch on the limiting block.

[0012] Furthermore, an induction heating coil is provided in the placement tank, storage tank and / or flow trough.

[0013] Furthermore, the rotating shaft is connected to the bracket for one-way rotation via a one-way bearing or a ratchet mechanism.

[0014] The present invention also utilizes the above-mentioned casting method of the portable aluminum alloy casting device, which is characterized by comprising:

[0015] In the early stage of pouring, the tilting mechanism, the filtering mechanism and the pouring mechanism are set up in sequence, and the height of the bracket of the tilting mechanism, the support frame of the filtering mechanism and the angle of the rotating seat of the pouring mechanism are adjusted;

[0016] In the middle of pouring, the clamp pot filled with aluminum liquid is placed in the placement groove of the tilting mechanism and fixed by the pressing plate, and then the rotating shaft is rotated to make the aluminum liquid flow out of the clamp pot and enter the mold of the pouring mechanism after passing through the filter box, storage tank and flow trough of the filtering mechanism in sequence;

[0017] At the end of pouring, remove the limit block and let the rotating trough and mold slowly and evenly descend until they are in a vertical position. After the aluminum liquid solidifies, remove the mold.

[0018] The beneficial effects of the present invention are as follows: the present invention makes the pouring liquid flow stable by designing the tipping mechanism, the filtering mechanism and the pouring mechanism, reduces the impurity defects in the ingot, and avoids the aluminum liquid stratification phenomenon.

[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 for Figure 1 A front view of

[0023] Figure numerals: bracket 1, rotating shaft 2, placing groove 3, pressing plate 4, turntable 5, crucible 6, filter box 7, storage tank 8, flow channel 9, support frame 10, ceramic filter plate 11, mold 12, rotating seat 13, limit block 14, L-shaped frame 15, gear lever 16. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific implementation methods. The accompanying drawings are only used for exemplary descriptions and are only schematic diagrams, not actual drawings, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0025] like Figure 1-2As shown, the portable aluminum alloy casting device and pouring method in this embodiment include: a tilting mechanism for rotating the crucible 6, which is composed of a bracket 1, a rotating shaft 2, a placement groove 3, and a pressing plate 4. The placement groove 3 is rotatably arranged on the bracket 1 through the rotating shaft 2, and a clamp pot 6 is placed therein and the clamp pot 6 is fixed by a pressing plate 4 arranged at the mouth of the placement groove 3; specifically, the placement groove is first placed vertically on the bracket with the mouth facing upward, and the pressing plate at its mouth is opened, and then the clamp pot filled with aluminum liquid is placed therein, and the pressing plate is locked back to the placement groove to fix the clamp pot. The bracket is a lifting structure, and the height of the placement groove can be adjusted. The bracket and The pressure plates can realize corresponding adjustment functions through bolts. By designing a tilting mechanism, the aluminum liquid in the crucible can be poured out smoothly to improve the stability of the casting process. The filtering mechanism is used to filter the aluminum liquid flowing down from the clamp pot 6, and is composed of a filter box 7, a storage tank 8, a flow tank 9, and a support frame 10. The storage tank 8 is arranged on the support frame 10, and the filter box 7 is arranged on the storage tank 8. The flow tank 9 is connected to the storage tank 8. Specifically, the filter box, the storage tank and the support frame are arranged in sequence from top to bottom, and the flow tank is connected to the storage tank side by side, so that the aluminum liquid flowing out of the clamp pot flows out after passing through the filter box, the storage tank and the flow tank, and a filter screen for filtering aluminum slag is provided in the filter box. The support frame 10 is provided with a filter screen for filtering aluminum slag. The frame is a telescopic structure, which can adjust the height of the filter box, the storage tank and the flow channel. The filter box is small in size, which is convenient for preheating. By designing the filtering mechanism, the impurity content of the ingot can be reduced. The pouring mechanism is used to pour the filtered aluminum liquid, which is composed of a mold 12, a rotating seat 13, a limit block 14, and an L-shaped frame 15. The mouth of the mold 12 is located below the outlet of the flow channel 9. The mold 12 is placed in the rotating seat 13. The rotating seat 13 is rotatably connected to the L-shaped frame 15. The limit block 14 can be placed at the inner corner of the L-shaped frame 15 and support the rotating seat 13 to tilt relative to the vertical direction. Specifically, the mold is first placed in the rotating seat, and the limit block 14 is used to control the rotation of the mold 12. The block supports the rotating seat so that it is tilted at a certain angle, and the mouth of the mold is aligned with the flow channel to receive the aluminum liquid flowing out of the flow channel. In the later stage of pouring the aluminum liquid, the limit block is removed, and the rotating seat is slowly lowered until it is vertically stationary. After the aluminum liquid is poured, the mold is taken out to complete the pouring; the length of the limit block can be selected according to the mold size and process requirements to meet the different tilt angles of the rotating seat; by designing the pouring mechanism, the entire pouring process is portable and unified, and the rotating slot can ensure that the mold is slow and uniform in the process from tilting to upright, so that the pouring liquid flow is smooth and continuous, and the slag inclusion defects brought into the ingot due to the shaking of the mold are reduced. By adopting the above scheme, the present invention can pour out the aluminum liquid in the crucible smoothly, improve the stability of the casting process; and filter and reduce the impurity content in the experimental ingot; and the aluminum liquid is continuous and stable at the end of the pouring, avoiding aluminum liquid stratification and reducing slag inclusion. In this way, the invention makes the pouring process more portable and unified, reduces the errors in experimental results caused by unstable pouring process, and reduces the difficulty of pouring operation; through the invention, the casting success rate reaches 90%, which is 30% higher than the existing casting technology as a whole, while improving work efficiency and reducing casting costs.

[0026] The bracket 1 and the support frame 10 in another embodiment can be integrated on a base (not shown), that is, the bracket and the support frame are arranged side by side on the base, and the bracket and the support frame have adjustable height in the vertical direction and adjustable spacing in the horizontal direction, which is convenient for experiments, carrying and operation.

[0027] A rotating disk 5 is provided on one side of the rotating shaft 2 in this embodiment to facilitate the rotation of the rotating shaft.

[0028] The filter screen arranged in the filter box 7 in this embodiment is a ceramic filter sheet 11, and the filter box 7 is in a trumpet shape, with the large end facing upward and the small end connected to the storage tank, so as to facilitate the placement and replacement of the ceramic filter sheet. The ceramic filter sheet can be cut into a suitable size according to the size of the filter box.

[0029] The storage tank 8 and the flow channel 9 in this embodiment are paved with refractory cement. The flow channel 9 is provided with an inverted eight-shaped flow channel along the flow direction of the aluminum liquid, which is convenient for the flow of the aluminum liquid and can improve the smoothness of the aluminum liquid flow.

[0030] In another embodiment, the rotating seat 13 is provided with a lever 16 that abuts against the notch on the stop block 14. The design of the lever not only facilitates the support of the stop block on the rotating seat, but also facilitates the operator to take away the stop block and slowly put down the rotating seat during the later stage of pouring.

[0031] In the present embodiment, the placing tank 3, the storage tank 8 and / or the flow tank 9 are provided with an induction heating coil (not shown), which can ensure the fluidity of the aluminum liquid before entering the mold and prevent the casting quality from being affected by its internal temperature difference.

[0032] In another embodiment, the rotating shaft 2 is connected to the bracket 1 in a one-way rotation through a one-way bearing or a ratchet mechanism. In this way, the placing tank can only rotate in one direction during the operation of the placing tank, which not only ensures the normal outflow of the aluminum liquid, but also facilitates the operation of the operator and prevents the placing tank from reversing.

[0033] The pouring method of the portable aluminum alloy casting device specifically comprises the following steps:

[0034] In the early stage of pouring, the tilting mechanism, the filtering mechanism and the pouring mechanism are set up in sequence, and the height of the bracket of the tilting mechanism, the support frame of the filtering mechanism and the angle of the rotating seat of the pouring mechanism are adjusted;

[0035] In the middle of pouring, the clamp pot filled with aluminum liquid is placed in the placement tank of the tilting mechanism and fixed by the pressing plate. Then, the rotating shaft is rotated to make the aluminum liquid flow out of the clamp pot and enter the mold of the pouring mechanism after passing through the filter box, storage tank and flow trough of the filtering mechanism in sequence; before casting, the high-temperature preheated filter box is placed in the storage tank; the placement tank, storage tank and flow trough are kept heated by the induction heating coil;

[0036] At the end of pouring, remove the limit block and let the rotating trough and the mold slowly and evenly descend until they are in a vertical position. After the aluminum liquid solidifies, remove the mold and complete the pouring.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A portable aluminum alloy casting device, characterized in that: include: The tilting mechanism is used to rotate the crucible (6), and is composed of a bracket (1), a rotating shaft (2), a placement groove (3), and a pressure plate (4). The placement groove is rotatably arranged on the bracket via the rotating shaft, and a clamp pot is placed therein and the clamp pot is fixed by a pressure plate arranged at the mouth of the placement groove; the filtering mechanism is used to filter the aluminum liquid flowing down from the clamp pot, and is composed of a filter box (7), a storage tank (8), a flow channel (9), and a support frame (10). The storage tank is arranged on the support frame, the filter box is arranged on the storage tank, and the flow channel is connected to the storage tank; the pouring mechanism is used to pour the filtered aluminum liquid, and is composed of a mold (12), a rotating seat (13), a limit block (14), and an L-shaped frame (15). The mouth of the mold is located below the outlet of the flow channel, the mold is placed in the rotating seat, the rotating seat is rotatably connected to the L-shaped frame, and the limit block can be placed at the inner corner of the L-shaped frame and supports the rotating seat to tilt relative to the vertical direction; The bracket and the support frame are both lifting structures, and the two are integrated on a base; The rotating seat is provided with a stop rod (16) which abuts against the clearance notch on the limit block.

2. The portable aluminum alloy casting device according to claim 1, characterized in that: A rotating disk (5) is provided on one side of the rotating shaft.

3. The portable aluminum alloy casting device according to claim 1, characterized in that: A ceramic filter sheet (11) is provided in the filter box.

4. The portable aluminum alloy casting device according to claim 1, characterized in that: The filter box is in a trumpet-shaped shape, with a large end facing upward and a small end connected to the storage tank.

5. The portable aluminum alloy casting device according to claim 1, characterized in that: The flow trough is provided with a flow channel in an inverted eight-shaped shape along the flow direction of the aluminum liquid.

6. The portable aluminum alloy casting device according to claim 1, characterized in that: The placing tank, storage tank and / or flow tank are provided with an induction heating coil.

7. The portable aluminum alloy casting device according to claim 1, characterized in that: The rotating shaft is connected to the bracket for one-way rotation via a one-way bearing or a ratchet mechanism.

8. A casting method using the portable aluminum alloy casting device according to any one of claims 1 to 7, characterized in that: include: In the early stage of pouring, the tilting mechanism, the filtering mechanism and the pouring mechanism are set up in sequence, and the height of the bracket of the tilting mechanism, the support frame of the filtering mechanism and the angle of the rotating seat of the pouring mechanism are adjusted; In the middle of pouring, the clamp pot filled with aluminum liquid is placed in the placement groove of the tilting mechanism and fixed by the pressing plate, and then the rotating shaft is rotated to make the aluminum liquid flow out of the clamp pot and enter the mold of the pouring mechanism after passing through the filter box, storage tank and flow trough of the filtering mechanism in sequence; At the end of pouring, remove the limit block and let the rotating trough and mold slowly and evenly descend until they are in a vertical position. After the aluminum liquid solidifies, remove the mold.

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