Filtering box for reducing pouring emptying amount of aluminum alloy melt

Abstract

The utility model relates to a filter box for reducing the pouring and drying amount of aluminum alloy melt, and belongs to the technical field of melt filtering. The filter box comprises a filter box body; a filling block is arranged in the filter box body and is suspended in the center of the interior of the filter box body; a lifting lug is arranged at the top of the filling block; a winch is arranged on a wall body above the filter box body; a hook is fixed at one end of the bottom of a cable in the winch; the lifting lug is detachably connected with the hook; a filter plate is arranged at the lower part of the filter box body; and a liquid outlet is formed below the filter plate. The filling block is additionally arranged in the aluminum alloy melt filter box provided by the utility model and is placed in the center of the filter box, so that the constant temperature of each part of the flowing aluminum liquid can be effectively ensured, the flow speed in the filter box is stable, the drying amount is reduced, the consumption of the aluminum alloy solution is reduced, and meanwhile, the production efficiency and the stability in the casting process are improved; and defects are reduced, so that the rework rate and the rejection rate are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of melt filtration, and particularly relates to a filter box for reducing the pouring and dry-out amount of an aluminum alloy melt. BACKGROUND

[0002] Aluminum alloy casting process is a forming technology that fills and solidifies by injecting molten aluminum alloy into a prefabricated mold using external forces such as gravity, pressure or vacuum, and is suitable for producing complex-shaped metal parts, widely used in the fields of automobiles, aerospace, etc.

[0003] Aluminum alloy semi-continuous casting is a process that continuously pours molten aluminum into a mold to form long-size ingots through staged solidification. During the melt pouring process, in order to ensure that there are no bubbles, shrinkage holes and other defects in the castings, additional melt volume is required. This additional melt volume is usually referred to as "dry-out amount". Some common problems exist in the semi-continuous casting process, especially during the pouring process, which can affect the casting quality and cause metal waste, including the following problems: (1) Increase in dry-out amount: During the casting process, part of the aluminum alloy solution is wasted due to unstable flow or other reasons, resulting in the need for more metal raw materials to supplement, increasing the dry-out amount and reducing the casting efficiency and economy. (2) Unstable flow of aluminum alloy solution: During the flow of aluminum alloy solution into the mold, phenomena such as turbulent flow, excessive flow rate or uneven flow may occur. These unstable flows can easily lead to waste of aluminum alloy solution in the mold, and even cause problems such as aluminum alloy solution overflow and rapid cooling.

[0004] To solve this problem, adding filler blocks to the filter box during pouring can effectively solve the above problems. The filler blocks can reduce the dry-out amount during casting, adjust the flow rate and stabilize the flow of aluminum alloy solution. The filler blocks in the filter box can effectively adjust the flow rate of the aluminum alloy solution, preventing the aluminum alloy solution from flowing too fast or too slow. By slowing down the flow rate, overflow and loss of aluminum alloy solution are avoided, thereby reducing unnecessary metal waste and dry-out amount. The filler blocks can also improve the stability of the casting process. The design of the filler blocks in the filter box can effectively alleviate the phenomena of turbulent flow and uneven temperature of the aluminum alloy solution during the casting process, maintaining the stable flow of the aluminum alloy solution in the mold, thereby reducing the waste of the aluminum alloy solution and casting defects, and improving the production efficiency. At the same time, the heat exchange is optimized. The use of filler blocks in the filter box can help the aluminum alloy solution cool evenly during the casting process by optimizing the heat distribution of the aluminum alloy solution. This can reduce the loss of the aluminum alloy solution in the supercooling section, avoid wasting part of the aluminum alloy solution, and thus reduce the dry-out amount.

[0005] However, the filler block is in the environment of molten aluminum for a long time, especially in a high temperature environment, the service life of the filler block will have a great influence, and the filler block must be replaced regularly to ensure the stability of the effect. The addition of the filler block increases the contact area with the molten aluminum, thereby causing the temperature of the molten aluminum to decrease, increasing the energy loss, thereby forming a waste of energy. The layout and material of the filler block can cause the molten aluminum to flow unevenly in the filter box, affecting the distribution of the molten aluminum, and thus affecting the quality of the castings. For example, some areas can produce pores, cracks or other defects due to poor flow. The material and maintenance cost of the filler block is an additional expense. In particular, the need to regularly replace the filler block or repair it when it is damaged increases the production cost. Content of the utility model

[0006] In view of the problem of large loss of the filler block existing in the existing aluminum alloy melt filter, the utility model provides a filter box for reducing the pouring and drying amount of aluminum alloy melt, to solve the above problems.

[0007] The technical scheme of the utility model is as follows:

[0008] A filter box for reducing the pouring and drying amount of aluminum alloy melt, comprising a filter box body; the filter box body is internally provided with a filler block, the filler block is suspended in the central part of the inside of the filter box body; the top of the filler block is provided with an ear; the wall body above the filter box body is provided with a winch, the bottom end of the cable in the winch is fixedly provided with a hook; the ear and the hook are detachably connected; the lower part of the filter box body is provided with a filter plate; the lower part of the filter plate is provided with a liquid outlet.

[0009] Further, the filler block is a cuboid or a cylinder. The cuboid filler block can reduce the drying amount to a greater extent, and the cylindrical filler block can reduce the collision between the filler block and the filter box, thereby protecting the lining of the filter box.

[0010] Further, the sidewall of the filter box body is provided with a liquid inlet; the height of the ear is higher than that of the liquid inlet. In this way, the excessive contact of the iron ear with the molten aluminum can be prevented, thereby preventing excessive impurity elements.

[0011] Further, the gap between the filler block and the sidewall of the filter box body is filled with a filler material. During the flow of the aluminum alloy solution into the mold, turbulence, excessive flow rate or uneven flow may occur. By filling the gap between the filler block and the sidewall of the filter box body with a filler material, the flow rate of the melt entering the filter box can be stabilized in the box body, thereby preventing the liquid flow from impacting the filler block and causing the filler block to shake and collide with the filter box.

[0012] Further, the top of the filter box body is provided with a U-shaped cover plate; the cable passes through the gap of the U-shaped cover plate and extends into the inside of the filter box body.

[0013] Further, the filling block is H13 hot work die steel, and a surface of the filling block is coated with a ceramic coating or a graphite-based coating.

[0014] Further, the filling material is aluminum silicate asbestos felt.

[0015] Further, the filter box has a specification of 10T, 20T or 30T.

[0016] The aluminum alloy melt filter box has the following beneficial effects:

[0017] The aluminum alloy melt filter box has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings used in the description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0019] Figure 1 is a structural schematic view of the present application.

[0020] Figure 2 is a structural schematic view of the U-shaped cover plate.

[0021] Figure 3 is a structural schematic view of the hook.

[0022] In the drawings, 1 is the filter box body, 2 is the filling block, 3 is the lifting lug, 4 is the filter plate, 5 is the U-shaped cover plate, 6 is the cable, 7 is the liquid inlet, 8 is the filling material, 9 is the liquid outlet, 10 is the hook, and 11 is the hoist. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical scheme of the present application will be described clearly and completely in combination with the drawings in the specific embodiments. Obviously, the following described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present patent, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present patent.

[0024] Embodiment 1

[0025] A filter box for reducing the pouring loss of aluminum alloy melt, comprising a filter box body 1; a filler block 2 is arranged in the filter box body 1, and the filler block 2 is suspended in the central part of the filter box body 1; a lifting lug 3 is arranged on the top of the filler block 2; a hoist 11 is arranged on the upper wall of the filter box body 1, and a hook 10 is fixed to the bottom end of a cable 6 in the hoist 11; the lifting lug 3 is detachably connected with the hook 10; a filter plate 4 is arranged on the lower part of the filter box body 1; and a liquid outlet 9 is arranged below the filter plate 4.

[0026] Embodiment 2

[0027] A filter box for reducing the pouring loss of aluminum alloy melt, comprising a filter box body 1; a filler block 2 is arranged in the filter box body 1; the filler block 2 is a cuboid, and is made of H13 hot work die steel, and is coated with a ceramic coating or a graphite-based coating; the filler block 2 is suspended in the central part of the filter box body 1; a lifting lug 3 is arranged on the top of the filler block 2, and a liquid inlet 7 is arranged on the side wall of the filter box body 1; the height of the lifting lug 3 is higher than that of the liquid inlet 7; a hoist 11 is arranged on the upper wall of the filter box body 1, and a hook 10 is fixed to the bottom end of a cable 6 in the hoist 11; the lifting lug 3 is detachably connected with the hook 10; a filter plate 4 is arranged on the lower part of the filter box body 1; a liquid outlet 9 is arranged below the filter plate 4; a filler material 8 is filled in the gap between the filler block 2 and the side wall of the filter box body 1, and the filler material 8 is aluminum silicate asbestos felt; a U-shaped cover plate 5 is arranged on the top of the filter box body 1; the cable 6 passes through the gap of the U-shaped cover plate 5 and extends into the filter box body 1; and the specification of the filter box is 10T.

[0028] Embodiment 3

[0029] The utility model discloses a filter box of reducing the pouring and dry quantity of aluminum alloy melt, including filter box body 1, the inside of filter box body 1 is equipped with filling block 2, filling block 2 is cylinder, filling block 2 is H13 hot work die steel, surface is coated ceramic coating or graphite base paint, and filling block 2 is suspended in the inside central of filter box body 1, the top of filling block 2 is equipped with lug 3, and the lateral wall of filter box body 1 is equipped with liquid inlet 7, and the height of lug 3 is higher than liquid inlet 7, and the wall body above filter box body 1 is equipped with winch 11, and the bottom one end of cable 6 in winch 11 is fixed with hook 10, and lug 3 and hook 10 are detachably connected, and the lower part of filter box body 1 is equipped with filter plate 4, and the below of filter plate 4 is equipped with liquid outlet 9, and the gap between filling block 2 and the lateral wall of filter box body 1 is filled with filling material 8, and filling material 8 is aluminium silicate asbestos felt, and the top of filter box body 1 is equipped with U-shaped cover plate 5, and cable 6 passes through the gap of U-shaped cover plate 5 and extends into the inside of filter box body 1, and the specification of filter box is 30T.

[0030] The working principle of the utility model is as follows: before filtering aluminum alloy melt, first remove the U-shaped cover plate 5 on the top of the filter box, start the winch 11 provided on the top wall of the filter box body 1, and the filling block hung on the cable 6 moves downward into the filter box body 1, and the filling block 2 is placed in the center of the filter box body 1, suspended, and the aluminum silicate asbestos felt is filled between the filling block 2 and the filter box body 1. Cover the U-shaped cover plate 5, and the aluminum alloy melt enters the filter box from the liquid inlet 7, and flows into the mold from the liquid outlet 9 after being filtered by the bottom filter plate 4.

[0031] The above description of the disclosed embodiments enables those skilled in the art to carry out or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A filter box for reducing the dross level of an aluminum alloy melt, comprising a filter box body; characterized by, The filter box body is internally provided with a filling block, which is suspended in the central interior of the filter box body; the top of the filling block is provided with an lifting lug; the upper wall of the filter box body is provided with a winch, and the bottom end of a cable in the winch is fixed with a hook; the lifting lug and the hook are detachably connected; the lower part of the filter box body is provided with a filter plate; the lower part of the filter plate is provided with a liquid outlet.

2. A filter box for reducing the dross pickup of an aluminum alloy melt as it is poured, as set forth in claim 1, wherein, The filling block is a cuboid or a cylinder.

3. A filter box for reducing the dross pickup of an aluminum alloy melt as it is poured, as set forth in claim 1, wherein, The sidewall of the filter box body is provided with a liquid inlet; the height of the lifting lug is higher than the liquid inlet.

4. A filter box for reducing the dross pickup of an aluminum alloy melt as it is poured, as set forth in claim 1, wherein, The gap between the filling block and the sidewall of the filter box body is filled with a filling material.

5. A filter box for reducing the dross pickup of an aluminum alloy melt as it is poured, as set forth in claim 1, wherein, The top of the filter box body is provided with a U-shaped cover plate; the cable passes through the gap of the U-shaped cover plate and extends into the interior of the filter box body.

6. A filter box for reducing pourout losses of an aluminum alloy melt as defined in claim 1, wherein The filling block is H13 hot work die steel, and the surface is coated with a ceramic coating or a graphite-based paint.

7. A filter box for reducing the dross pickup of an aluminum alloy melt as it is poured, as set forth in claim 4, wherein, The filling material is aluminum silicate asbestos felt.

8. A filter box for reducing pourout loss of an aluminum alloy melt as defined in claim 1 wherein, The specification of the filter box is 10T, 20T or 30T.

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