Heat treatment equipment for cryogenic aging strengthening of aluminum alloy sheet

Abstract

The utility model discloses heat treatment equipment for cryogenic aging strengthening of an aluminum alloy sheet. The heat treatment equipment for cryogenic aging strengthening of the aluminum alloy sheet comprises a support, a cryogenic treatment box body is installed at the top of the support, a supporting frame is installed in the cryogenic treatment box body, rotating shafts are installed on the two sides of the supporting frame and connected with the cryogenic treatment box body, and a driving mechanism is installed on the side face of the cryogenic treatment box body. The driving mechanism is connected with the rotating shaft, and a sealing door is installed on one side of the subzero treatment box body. According to the heat treatment equipment for cryogenic aging strengthening of the aluminum alloy thin plate, the rotatable supporting frame is installed in the cryogenic treatment box body, when the aluminum alloy thin plate is taken and placed, by adjusting the inclination angle of the supporting frame, the aluminum alloy thin plate can be taken and placed in a more labor-saving mode, use is more convenient, and labor intensity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat treatment equipment technical field especially relates to a kind of heat treatment equipment for aluminum alloy sheet deep cryogenic aging strengthening. BACKGROUND

[0002] Deep cryogenic aging strengthening of aluminum alloy is an effective heat treatment process, and deep cryogenic aging strengthening refers to a process method that aluminum alloy is first subjected to deep cryogenic treatment and then subjected to aging treatment. Deep cryogenic treatment usually involves placing aluminum alloy in a low-temperature environment such as liquid nitrogen to rapidly reduce the temperature of the material to an extremely low temperature (typically below -100°C) and maintain it for a period of time. Aging treatment involves maintaining the material at a certain temperature for a long time to change its microstructure and improve its performance.

[0003] The existing deep cryogenic treatment box places aluminum alloy sheets on the support frame inside the box for deep cryogenic aging strengthening. However, the support frame is fixed in design and its angle cannot be changed. The aluminum alloy sheets are placed flat on the support frame. Therefore, when taking out the aluminum alloy sheets, force needs to be exerted to pull them out, which is labor-intensive and not conducive to the use of heavy aluminum alloy sheets.

[0004] Therefore, it is necessary to provide a heat treatment equipment for deep cryogenic aging strengthening of aluminum alloy sheets to solve the above technical problems. SUMMARY

[0005] To overcome the defects of the prior art, the utility model provides a heat treatment equipment for deep cryogenic aging strengthening of aluminum alloy sheets, which can make it easier to take out and put in aluminum alloy sheets.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The heat treatment equipment for deep cryogenic aging strengthening of aluminum alloy sheets comprises a support, a deep cryogenic treatment box body installed on the top of the support, a support frame installed in the deep cryogenic treatment box body, rotating shafts installed on both sides of the support frame, the rotating shafts connected to the deep cryogenic treatment box body, a drive mechanism installed on the side surface of the deep cryogenic treatment box body, the drive mechanism connected to the rotating shafts, the rotating shafts driven to rotate by the drive mechanism, and a sealing door installed on one side of the deep cryogenic treatment box body.

[0008] Preferably, a spray tray is installed in the deep cryogenic treatment box body, a plurality of spray heads are installed on the spray tray, a liquid nitrogen storage tank is installed on the top of the deep cryogenic treatment box body, a connecting pipe is installed between the liquid nitrogen storage tank and the spray tray, an electric control valve is installed on the connecting pipe, a reflux pipe is installed at the bottom of the deep cryogenic treatment box body, the reflux pipe is connected to the liquid nitrogen storage tank, and a reflux pump is installed on the reflux pipe.

[0009] Preferably, a plurality of support plates are installed on the support frame.

[0010] Preferably, a plurality of arc-shaped protrusions are evenly arranged on the support plate.

[0011] Preferably, an avoiding groove is arranged on the support plate.

[0012] Preferably, a blocking strip is arranged on the outer side of the support plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) the utility model discloses a support frame can be rotated is installed in the deep cold treatment box body, when taking and placing the aluminum alloy sheet, through the inclination of support frame is adjusted, can make taking and placing the aluminum alloy sheet more laborsaving, use more convenient, and reduce the labor intensity;

[0015] (2) the utility model discloses a spray tray, liquid nitrogen storage tank, connecting pipe, spray head, reflux pipe, reflux pump can be continuously circulated to the aluminum alloy sheet and sprays liquid nitrogen, improves the cooling speed of aluminum alloy sheet, and further improves the processing efficiency;

[0016] (3) the utility model discloses a plurality of support plates are installed on the support frame, and arc-shaped protrusions are evenly arranged on the support plate, can conveniently device simultaneously to multiple workpieces are heat treated, and be favorable to the taking down of plate-shaped workpiece;

[0017] (4) the utility model discloses an avoiding groove is arranged on the support plate, can conveniently clamp and take the aluminum alloy sheet, and further conveniently take down the aluminum alloy sheet;

[0018] (5) the utility model discloses a blocking strip is arranged on the outer side of the support plate, can block workpiece from the support plate and slide down, is favorable to improving the use safety of device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure schematic drawing of the heat treatment equipment for aluminum alloy sheet deep cold aging strengthening provided by the utility model is shown in the figure;

[0020] Figure 2 The structure schematic drawing of the heat treatment equipment for aluminum alloy sheet deep cold aging strengthening provided by the utility model is shown in the figure; Figure 1 The structure schematic drawing of the support frame in the heat treatment equipment for aluminum alloy sheet deep cold aging strengthening shown in the figure;

[0021] Figure 3 The structure schematic drawing of the support plate in the heat treatment equipment for aluminum alloy sheet deep cold aging strengthening shown in the figure; Figure 1 The structure schematic drawing of the support plate in the heat treatment equipment for aluminum alloy sheet deep cold aging strengthening shown in the figure;

[0022] Figure 4 The enlarged schematic drawing of part A in the figure; Figure 3

[0023] ​Wherein, the corresponding name of the reference mark is: 1- support, 2- deep cryogenic treatment box body, 3- support frame, 4- rotating shaft, 5- spray tray, 6- liquid nitrogen storage tank, 7- connecting pipe, 8- spray head, 9- support plate, 10- arc convex, 11- avoiding groove, 12- blocking bar, 13- return pipe, 14- return pump, 15- sealing door. DETAILED DESCRIPTION

[0024] The utility model will be further explained in combination with the drawings and examples, and the mode of the utility model includes but is not limited to the following examples.

[0025] Example 1:

[0026] As Figures 1-4 The heat treatment equipment for aluminum alloy sheet deep cryogenic aging strengthening provided by the utility model, comprising: support 1, support 1 top installs deep cryogenic treatment box body 2, deep cryogenic treatment box body 2 installs support frame 3 in, the both sides of support frame 2 install rotating shaft 4, rotating shaft 4 is connected with deep cryogenic treatment box body 2, and deep cryogenic treatment box body 2 side installs drive mechanism, drive mechanism is connected with rotating shaft 4, can drive rotating shaft 4 to rotate through drive mechanism, one side of deep cryogenic treatment box body 2 installs sealing door 15, when using, open sealing door 15, and drive rotating shaft 4 to rotate counterclockwise 5-10 degrees through drive mechanism, make support frame 3 towards the side of sealing door 15 present and tilt to upper side, therefore, when sending aluminum alloy sheet into support frame 3, because support frame 3 is in the inclined state, the friction between aluminum alloy sheet and support frame 3 is reduced, and it is more labor-saving to push the aluminum alloy sheet, and then the aluminum alloy sheet is conveniently put in, after the aluminum alloy sheet is put into the box, support frame 3 is turned to flat again, and the aluminum alloy sheet is deep cryogenic aging strengthened by deep cryogenic treatment box body 2, after heat treatment is completed, open sealing door 15, and rotating shaft is turned clockwise 5-15 degrees, make support frame 3 towards the side of sealing door 15 tilt to lower side, can reduce friction, and it is more labor-saving to take down the aluminum alloy sheet from support frame 3.It is worth mentioning that this kind of use mode is more suitable for heavier plate-shaped workpieces, and can effectively reduce labor intensity.

[0027] By installing the support frame 3 that can rotate in deep cryogenic treatment box body 2, when taking and placing the aluminum alloy sheet, the inclination of support frame 3 is adjusted, which can make it more labor-saving to take and place the aluminum alloy sheet, and more convenient to use, and reduce labor intensity.

[0028] Example 2:

[0029] As Figure 1As shown, a spray plate 5 is installed inside the cryogenic treatment chamber body 2, and multiple nozzles 8 are installed on the spray plate 5. A liquid nitrogen storage tank 6 is installed on the top of the cryogenic treatment chamber body 2, and a connecting pipe 7 is installed between the liquid nitrogen storage tank 6 and the spray plate 5. An electric control valve is installed on the connecting pipe 7. A return pipe 13 is installed at the bottom of the cryogenic treatment chamber body 2, and the return pipe 13 is connected to the liquid nitrogen storage tank 6. A return pump 14 is installed on the return pipe 13. In use, the electric control valve is opened, and the liquid nitrogen in the liquid nitrogen storage tank 6 enters the spray plate 5 through the connecting pipe 7, and then is sprayed downwards through the nozzles 8 to spray and cool the aluminum alloy sheet on the support frame 3. The liquid nitrogen collected at the bottom of the tank is pumped out by the return pump 14 and returned to the liquid nitrogen storage tank 6 through the return pipe 13, thereby ensuring a continuous supply and uniform spray of liquid nitrogen and improving treatment efficiency.

[0030] By setting up a spray plate 5, a liquid nitrogen storage tank 6, a connecting pipe 7, a nozzle 8, a return pipe 13, and a return pump 14, liquid nitrogen can be continuously sprayed onto the aluminum alloy sheet, thereby increasing the cooling rate of the aluminum alloy sheet and thus improving the processing efficiency.

[0031] Example 3:

[0032] like Figures 2-4 As shown, multiple support plates 9 are installed on the support frame 3. Each layer of support plates 9 can hold workpieces undergoing heat treatment. To further reduce the friction between the support plates 9 and the workpieces, multiple arc-shaped protrusions 10 are evenly arranged on the support plates 9. This reduces the contact area between the plate-shaped workpieces and the support plates 9, decreasing friction and making it easier for the workpieces to adhere to the support surface 9, facilitating removal. During use, the support frame 3 should be kept tilted during heat treatment, with its opening facing upwards to facilitate liquid nitrogen spraying onto the workpieces on each layer of support plates 9.

[0033] By installing multiple support plates 9 on the support frame 3 and uniformly setting arc-shaped protrusions 10 on the support plates 9, the device can conveniently perform heat treatment on multiple workpieces at the same time, and facilitate the removal of plate-shaped workpieces.

[0034] Example 4:

[0035] like Figure 4 As shown, a clearance groove 11 is provided on the support plate 9. When in use, a tool can be used to clamp the aluminum alloy sheet from the clearance groove 11 to facilitate its removal.

[0036] By providing a clearance groove 11 on the support plate 9, it is easy to clamp the aluminum alloy sheet, and thus easy to remove the aluminum alloy sheet.

[0037] Example 5:

[0038] like Figures 3-4As shown, the blocking strip 12 is arranged outside the support plate 9, and the height of the blocking strip 12 is higher than that of the arc-shaped protrusion 10. In use, the aluminum alloy sheet is pushed to the top of the support plate 9, and the edge of the aluminum alloy sheet is blocked by the blocking strip 12. In the case that the opening of the support frame 3 is inclined downward, the aluminum alloy sheet is not easy to slide off the support plate 9 due to the blocking of the blocking strip 12, thereby improving the safety in use.

[0039] By arranging the blocking strip 12 outside the support plate 9, the workpiece can be blocked from sliding off the support plate 9, which is beneficial to improve the safety in use of the device.

[0040] Working principle: in use, the sealing door 15 is opened, and the rotating shaft 4 is driven to rotate counterclockwise by 5-10 degrees through the driving mechanism, so that the support frame 3 is inclined upward toward the side of the sealing door 15. Therefore, when the aluminum alloy sheet is fed into the support frame 3, the support frame 3 is in an inclined state, the friction between the aluminum alloy sheet and the support frame 3 is reduced, and the aluminum alloy sheet is pushed more easily under the action of gravity, thereby facilitating the placement of the aluminum alloy sheet. After the aluminum alloy sheet is placed in the box, the support frame 3 is turned to be flat, and the aluminum alloy sheet is subjected to deep cryogenic aging strengthening by the deep cryogenic treatment box body 2. After the heat treatment is completed, the sealing door 15 is opened, and the rotating shaft is rotated clockwise by 5-15 degrees, so that the support frame 3 is inclined downward toward the side of the sealing door 15. The friction can be reduced, and the aluminum alloy sheet can be taken off the support frame 3 more easily under the action of gravity. It is worth noting that this use mode is more suitable for heavier plate-shaped workpieces, and can effectively reduce the labor intensity.

Claims

1. A heat treatment apparatus for deep cryogenic aging strengthening of an aluminum alloy sheet, characterized by, Include: Support (1), the support (1) top-mounted cryogenic treatment box body (2), the support frame (3) is installed in the cryogenic treatment box body (2), the rotating shaft (4) is installed on both sides of the support frame (3), the rotating shaft (4) is connected with the cryogenic treatment box body (2), the drive mechanism is installed on the side of the cryogenic treatment box body (2), the drive mechanism is connected with rotating shaft (4), the cryogenic treatment box body (2) one side is installed sealing door (15).

2. The heat treatment apparatus for deep cryogenic aging strengthening of an aluminum alloy sheet according to claim 1, characterized in that, The cryogenic treatment box body (2) is installed in the spray tray (5), a plurality of spray heads (8) are installed on the spray tray (5), the liquid nitrogen storage tank (6) is installed on the top of the cryogenic treatment box body (2), the connecting pipe (7) is installed between the liquid nitrogen storage tank (6) and the spray tray (5), the electric control valve is installed on the connecting pipe (7), the backflow pipe (13) is installed at the bottom of the cryogenic treatment box body (2), the backflow pipe (13) is connected with the liquid nitrogen storage tank (6), the backflow pump (14) is installed on the backflow pipe (13).

3. The heat treatment apparatus for deep cryogenic aging strengthening of an aluminum alloy sheet according to claim 1, characterized in that, A plurality of support plates (9) are installed on the support frame (3).

4. The heat treatment apparatus for deep cryogenic aging strengthening of an aluminum alloy sheet according to claim 3, characterized in that, A plurality of arc protrusions (10) are evenly arranged on the support plate (9).

5. The heat treatment apparatus for deep cryogenic aging strengthening of an aluminum alloy sheet according to claim 3, characterized in that, The support plate (9) is provided with an avoidance groove (11).

6. The heat treatment apparatus for deep cryogenic aging strengthening of an aluminum alloy sheet according to claim 3, characterized in that, The outer side of the support plate (9) is provided with a blocking strip (12).

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