Surface protection device for heat treatment of aluminum alloys

Abstract

This utility model relates to the field of aluminum alloy heat treatment technology and discloses an aluminum alloy heat treatment surface protection device, comprising: a treatment cylinder, with an exhaust pipe connected to the outer wall of the treatment cylinder, and a rotatably mounted airtight door on the outer wall of the treatment cylinder; a protective mounting assembly including several mounting ring plates, with fixed partitions evenly and uniformly fixed between adjacent mounting ring plates, and several arc-shaped support bars evenly and uniformly fixed on the top surface of the lower mounting ring plates, with fixed rings fixedly sleeved on the outer walls of the uppermost and lowermost mounting ring plates, the fixed rings being movably positioned within an annular limiting groove. In this aluminum alloy heat treatment surface protection device, protective gas is delivered to the treatment cylinder through the exhaust pipe, and the aluminum alloy workpiece is placed on the arc-shaped support bars, suspending the aluminum alloy workpiece to ensure a stable protective atmosphere is formed inside the treatment cylinder. The mounting ring plates can rotate inside the treatment cylinder, and the protective gas is evenly distributed within the treatment cylinder.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy heat treatment technology, and in particular to a surface protection device for aluminum alloy heat treatment. Background Technology

[0002] Aluminum alloy heat treatment involves selecting a specific heat treatment standard, controlling the heating rate to reach a certain temperature, holding it at that temperature for a certain time, and then cooling it at a certain rate to change the alloy's microstructure. Its main purpose is to improve the alloy's mechanical properties and increase the degree of hardening of the aluminum alloy. During the treatment process, it is necessary to isolate the aluminum alloy surface from oxygen to prevent oxidation reactions during heating.

[0003] Existing technology, such as the patent with publication number CN222455154U, discloses an aluminum alloy heat treatment device, including a heat treatment chamber. The heat treatment chamber has an internal partitioned rotating mechanism, which includes: a turntable rotatably mounted inside the heat treatment chamber via a rotating shaft; a motor fixedly connected to the top of the heat treatment chamber; a heat insulation component mounted on the top of the turntable; a clamping rotating component positioned between two adjacent heat insulation plates; and a heating and cooling component. Multiple grooves are equidistantly spaced on the inner wall of the heat treatment chamber, and the heating and cooling component is located inside these grooves. This invention utilizes the coordinated arrangement of the turntable, motor, heat insulation component, clamping rotating component, and heating and cooling component. Through multiple first and second heat insulation plates in the multiple heat insulation components, the entire heat treatment chamber can be divided into a heating zone, a cooling zone, and a loading and unloading zone, improving the processing efficiency of the aluminum alloy profile heat treatment device and saving corresponding energy.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: the heating device in the above devices is fixedly installed, which causes heat exchange inside the furnace body to take longer to reach the preset temperature. Moreover, it is easy to cause the area near the heating device to heat up quickly, and the heating of different areas inside the furnace body is uneven, resulting in a longer heat treatment time and affecting processing efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of uneven heating in different areas inside the furnace body. To address this, we propose a surface protection device for aluminum alloy heat treatment.

[0006] To achieve the above objectives, this application adopts the following technical solution: an aluminum alloy heat treatment surface protection device, comprising: a treatment cylinder, an air passage connected to the outer wall of the treatment cylinder, a sealed door rotatably installed on the outer wall of the treatment cylinder, a protective installation component inside the treatment cylinder, and a heat equalization component in the center of the treatment cylinder to ensure uniform heat distribution inside the treatment cylinder. The protective mounting assembly includes several mounting ring plates. Fixed partitions are evenly and uniformly fixed between adjacent mounting ring plates. Several arc-shaped support strips are evenly and uniformly fixed on the top surface of the lower mounting ring plates. Fixed rings are fixedly sleeved on the outer walls of the uppermost and lowermost mounting ring plates. Annular limiting grooves are opened at the top and bottom of the inner wall of the processing cylinder, and the fixed rings are movably set in the annular limiting grooves.

[0007] Preferably, the heat dissipation assembly includes a heat dissipation cylinder, which is movably disposed within a plurality of mounting ring plates. The bottom end of the heat dissipation cylinder is rotatably mounted inside the bottom end of the processing cylinder. An electric heating tube is fixedly mounted inside the bottom end of the heat dissipation cylinder. The electric heating tube is powered by a slip ring brush structure disposed outside the heat dissipation cylinder. A rotating rod is rotatably mounted inside the top end of the processing cylinder. The rotating rod rotatably penetrates into the heat dissipation cylinder. A rotating fan blade is fixedly mounted at the bottom end of the rotating rod. A drive motor is fixedly mounted at the top end of the processing cylinder. The output shaft of the drive motor penetrates into the processing cylinder and is coaxially and fixedly connected to the rotating rod.

[0008] Preferably, the outer wall of the heat exchanger is provided with a number of air outlets at equal intervals and the top of the heat exchanger is provided with a number of air inlets at equal intervals and the bottom of the heat exchanger is fixedly installed with a low-speed motor, the output shaft of the low-speed motor being coaxially and fixedly connected to the center of the top of the heat exchanger.

[0009] Preferably, a number of support rings are fixedly installed at the bottom end of the lowest mounting ring plate and the bottom end of the heat exchange cylinder. The support rings are concentrically arranged. A number of movable ring grooves are opened at the bottom end of the processing cylinder. The movable ring grooves are concentrically arranged. The support rings correspond one-to-one with the movable ring grooves. The support rings are movably arranged in the corresponding movable ring grooves.

[0010] Preferably, several rotating balls are equidistantly and evenly mounted on the bottom ends of several support rings, and the outer walls of the rotating balls are in contact with the inner bottom surface of the movable ring groove.

[0011] Preferably, the airtight door is positioned between the uppermost and lowermost mounting ring plates, and several support legs are evenly and uniformly fixed at the bottom of the processing cylinder.

[0012] The technical effects and advantages of this utility model are as follows: In this invention, protective gas is delivered to the processing cylinder through a gas pipe. The aluminum alloy processing component is placed on several arc-shaped support bars, which suspends the aluminum alloy processing component and ensures that a stable protective atmosphere is formed inside the processing cylinder. The mounting ring plate can rotate inside the processing cylinder, and the protective gas is evenly distributed inside the processing cylinder, ensuring that all parts of the aluminum alloy are well protected.

[0013] In this invention, the electric heating tube is activated, and the drive motor drives the rotating fan blades to rotate via the rotating rod. The low-speed motor drives the heat exchange cylinder to rotate, so that the gas in the heat exchange cylinder is discharged through the air outlet, and the gas in the processing cylinder enters the heat exchange cylinder through the air inlet, making the hot gas more evenly distributed inside the processing cylinder. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a side view of the present invention. Figure 4 This is a schematic diagram of the internal structure of the processing cylinder of this utility model; Figure 5 This is a schematic diagram of the protective mounting component structure of this utility model; Figure 6 This is a schematic diagram of the cross-sectional structure of the processing cylinder of this utility model; Figure 7 This is a schematic diagram of the heat dissipation component structure of this utility model.

[0015] Legend: 1. Processing cylinder; 2. Air pipe; 3. Sealed door; 4. Protective mounting assembly; 41. Mounting ring plate; 42. Fixed partition plate; 43. Arc-shaped support bar; 44. Fixed ring; 45. Annular limiting groove; 5. Heat equalization assembly; 51. Heat equalization cylinder; 52. Electric heating tube; 53. Rotating rod; 54. Rotating fan blade; 55. Drive motor; 56. Air outlet; 57. Air inlet; 58. Low-speed motor; 6. Support ring; 61. Rotating ball; 7. Movable annular groove; 8. Support leg. Detailed Implementation

[0016] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0017] Reference Figures 1-5 As shown, this utility model provides a technical solution: an aluminum alloy heat treatment surface protection device, including: a treatment cylinder 1, an air passage 2 connected to the outer wall of the treatment cylinder 1, a sealed door 3 rotatably installed on the outer wall of the treatment cylinder 1, a protective placement component 4 inside the treatment cylinder 1, and a heat equalization component 5 in the center of the treatment cylinder 1 to ensure uniform heat distribution in the inner part of the treatment cylinder 1. The protective mounting assembly 4 includes several mounting ring plates 41. Fixed partitions 42 are fixedly installed at equal intervals between adjacent mounting ring plates 41. Several arc-shaped support bars 43 are fixedly installed at equal intervals on the top surface of the lower mounting ring plates 41. Fixed rings 44 are fixedly sleeved on the outer walls of the uppermost and lowermost mounting ring plates 41. Annular limiting grooves 45 are opened at the top and bottom of the inner wall of the processing cylinder 1. The fixed rings 44 are movably disposed in the annular limiting grooves 45.

[0018] Reference Figures 1-5 As shown in this embodiment: the protective gas is delivered to the processing cylinder 1 through the gas pipe 2, and the aluminum alloy processing parts are placed on several arc-shaped support bars 43 to achieve a suspended setting of the aluminum alloy processing parts, ensuring that a stable protective atmosphere is formed in the processing cylinder 1. The mounting ring plate 41 can rotate in the processing cylinder 1, and the protective gas is evenly distributed in the processing cylinder 1 to ensure that all parts of the aluminum alloy are well protected. When the mounting ring plate 41 rotates, the fixing ring 44 moves in the annular limiting groove 45 to provide certain support for the mounting ring plates 41 and limit the positioning of the mounting ring plates 41.

[0019] Reference Figures 6-7 As shown, this utility model provides a technical solution: the heat dissipation assembly 5 includes a heat dissipation cylinder 51, which is movably disposed within a plurality of mounting ring plates 41. The bottom end of the heat dissipation cylinder 51 is rotatably mounted inside the bottom end of the processing cylinder 1. An electric heating tube 52 is fixedly installed inside the bottom end of the heat dissipation cylinder 51. The electric heating tube 52 is powered by a slip ring brush structure disposed outside the heat dissipation cylinder 51. The slip ring brush structure is designed according to the IEC 60204 standard. Continuous power supply is achieved through the contact between the fixed brush and the rotating slip ring. A rotating rod 53 is rotatably mounted at the top end of the processing cylinder 1. The rotating rod 53 rotatably penetrates into the heat dissipation cylinder 51. A rotating fan blade 54 is fixedly mounted at the bottom end of the rotating rod 53. A drive motor 55 is fixedly mounted at the top end of the processing cylinder 1. The output shaft of the drive motor 55 penetrates into the processing cylinder 1 and is coaxially and fixedly connected to the rotating rod 53.

[0020] The outer wall of the heat exchange cylinder 51 is provided with several air outlets 56 at equal intervals, and the top of the heat exchange cylinder 51 is provided with several air inlets 57 at equal intervals. A low-speed motor 58 is fixedly installed at the bottom of the processing cylinder 1, and the output shaft of the low-speed motor 58 is coaxially fixedly connected to the center of the top of the heat exchange cylinder 51.

[0021] Reference Figures 6-7 As shown, in this embodiment: the electric heating tube 52 is activated, the drive motor 55 drives the rotating fan blade 54 to rotate through the rotating rod 53, and the low-speed motor 58 drives the heat spreader 51 to rotate, so that the gas in the heat spreader 51 is discharged through the air outlet 56, and the gas in the processing cylinder 1 enters the heat spreader 51 through the air inlet 57, so that the hot gas is more evenly distributed inside the processing cylinder 1.

[0022] Reference Figures 1-3 and Figures 5-6 As shown, this utility model provides a technical solution: a number of support rings 6 are fixedly installed at the bottom end of the lowest mounting ring plate 41 and the bottom end of the heat dissipation cylinder 51. The number of support rings 6 are concentrically arranged. A number of movable ring grooves 7 are opened at the bottom end of the processing cylinder 1. The number of movable ring grooves 7 are concentrically arranged. The number of support rings 6 correspond one-to-one with the movable ring grooves 7. The support rings 6 are movably arranged in the corresponding movable ring grooves 7.

[0023] Several rotating balls 61 are equidistantly and evenly mounted on the bottom end of several support rings 6, and the outer walls of the rotating balls 61 are in contact with the inner bottom surface of the movable ring groove 7.

[0024] The airtight door 3 is located between the uppermost and lowermost mounting ring plates 41, and several support legs 8 are evenly and uniformly fixed at the bottom of the processing cylinder 1.

[0025] Reference Figures 1-3 and Figures 5-6 As shown in this embodiment: when the mounting ring plate 41 and the heat-spreading cylinder 51 rotate, the support ring 6 rotates in the corresponding movable ring groove 7 to limit the mounting ring plate 41 and the heat-spreading cylinder 51, and at the same time provide certain support for the mounting ring plate 41 and the heat-spreading cylinder 51. Meanwhile, several rotating balls 61 rotate to ensure the stability of the mounting ring plate 41 and the heat-spreading cylinder 51 when they rotate.

[0026] Working principle: Protective gas is delivered to the processing cylinder 1 through the gas pipe 2. The aluminum alloy processing parts are placed on several arc-shaped support bars 43, so that the aluminum alloy processing parts are suspended in the air, ensuring that a stable protective atmosphere is formed in the processing cylinder 1. The mounting ring plate 41 can rotate in the processing cylinder 1, and the protective gas is evenly distributed in the processing cylinder 1, ensuring that all parts of the aluminum alloy are well protected. The electric heating tube 52 is started, and the drive motor 55 drives the rotating fan blade 54 to rotate through the rotating rod 53. The low-speed motor 58 drives the heat spreader 51 to rotate, so that the gas in the heat spreader 51 is discharged through the gas outlet 56, and the gas in the processing cylinder 1 enters the heat spreader 51 through the gas inlet 57, so that the hot gas is more evenly distributed inside the processing cylinder 1.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A surface protection device for aluminum alloy heat treatment, characterized in that, Includes a processing cylinder (1): the outer wall of the processing cylinder (1) is connected to an air passage (2), a sealed door (3) is rotatably installed on the outer wall of the processing cylinder (1), a protective installation component (4) is provided inside the processing cylinder (1), and a heat equalization component (5) is provided in the center of the processing cylinder (1) to ensure uniform heat inside the processing cylinder. The protective mounting assembly (4) includes several mounting ring plates (41). Fixed partitions (42) are fixedly installed at equal intervals between adjacent mounting ring plates (41). Several arc-shaped support strips (43) are fixedly installed at equal intervals on the top surface of the lower mounting ring plates (41). Fixed rings (44) are fixedly sleeved on the outer walls of the uppermost and lowermost mounting ring plates (41). Annular limiting grooves (45) are opened at the top and bottom of the inner wall of the processing cylinder (1). The fixed rings (44) are movably disposed in the annular limiting grooves (45).

2. The aluminum alloy heat treatment surface protection device of claim 1, wherein: The heat exchange assembly (5) includes a heat exchange cylinder (51), which is movably disposed within a plurality of mounting ring plates (41). The bottom end of the heat exchange cylinder (51) is rotatably mounted inside the bottom end of the processing cylinder (1). An electric heating tube (52) is fixedly mounted inside the bottom end of the heat exchange cylinder (51). The electric heating tube (52) is powered by a slip ring brush structure disposed outside the heat exchange cylinder (51). A rotating rod (53) is rotatably mounted inside the top end of the processing cylinder (1). The rotating rod (53) rotatably penetrates into the heat exchange cylinder (51). A rotating fan blade (54) is fixedly mounted at the bottom end of the rotating rod (53). A drive motor (55) is fixedly mounted at the top end of the processing cylinder (1). The output shaft of the drive motor (55) penetrates into the processing cylinder and is coaxially and fixedly connected to the rotating rod (53).

3. The aluminum alloy heat treatment surface protection device according to claim 2, characterized in that: The outer wall of the heat exchange cylinder (51) is provided with a plurality of air outlet holes (56) at equal intervals and uniformly. The top of the heat exchange cylinder (51) is provided with a plurality of air inlet holes (57) at equal intervals and uniformly. A low-speed motor (58) is fixedly installed at the bottom of the processing cylinder (1). The output shaft of the low-speed motor (58) is coaxially fixedly connected to the center of the top of the heat exchange cylinder (51).

4. The aluminum alloy heat treatment surface protection device of claim 2, wherein: A number of support rings (6) are fixedly installed at the bottom end of the lowest mounting ring plate (41) and the bottom end of the heat dissipation cylinder (51). The support rings (6) are concentrically arranged. A number of movable ring grooves (7) are opened at the bottom end of the processing cylinder (1). The movable ring grooves (7) are concentrically arranged. The support rings (6) correspond one-to-one with the movable ring grooves (7). The support rings (6) are movably arranged in the corresponding movable ring grooves (7).

5. The aluminum alloy heat treatment surface protection device according to claim 4, characterized in that: A plurality of rotating balls (61) are equidistantly and uniformly mounted on the bottom end of a plurality of support rings (6), and the outer side wall of the plurality of rotating balls (61) is in contact with the inner bottom surface of the movable ring groove (7).

6. The aluminum alloy heat treatment surface protection device according to claim 1, characterized in that: The airtight door (3) is located between the uppermost and lowermost mounting ring plates (41), and several support legs (8) are evenly and uniformly fixed at the bottom of the processing cylinder (1).

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