Photovoltaic aluminum alloy solar frame heat treatment process

By setting a temperature buffer structure in the annealing box, the gas buffer cooling plate is used to cool the incoming high-temperature gas, which solves the problem of heat deformation caused by too fast temperature rise in the annealing process of aluminum alloy frames, and improves the annealing quality and adaptability.

CN119859743APending Publication Date: 2025-04-22CHANGZHOU KAIHONG ALUMINIUM IND CO LTD
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Patent Information

Application Number
CN202510176254.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-04-22

AI Technical Summary

Technical Problem

In the prior art, the aluminum alloy frame annealing treatment lacks measures to buffer high-temperature gas, which causes the inside of the annealing furnace to rise too quickly, which may cause thermal deformation of the aluminum alloy frame and affect the annealing quality.

Method used

A photovoltaic aluminum alloy solar frame heat treatment process is designed. By setting a temperature buffer structure in the annealed box, including a thermostatic box and a buffer cooling plate, the gas buffer cooling plate is used to cool the incoming high-temperature gas to slow down the temperature increase rate in the furnace.

Benefits of technology

It effectively avoids thermal deformation caused by the aluminum alloy frame due to excessive heating, improves the annealing quality, and heat treatment and protection of the surface of the frame parts by uniformly distributing the protection gas, and is suitable for frame parts of different sizes.

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Abstract

The invention discloses a photovoltaic aluminum alloy solar frame heat treatment process, relates to the technical field of aluminum alloy solar frame heat treatment, and solves the technical problem that the annealing quality of an aluminum alloy frame is affected due to thermal deformation of the aluminum alloy frame caused by too fast temperature rise in an annealing furnace. The method specifically comprises the following steps that S1, the aluminum alloy frame is checked and cleaned firstly, and it is guaranteed that the surface of the aluminum alloy frame is free of defects; s2, the aluminum alloy frame is loaded into an annealing box body through a clamping mechanism, and after furnace loading is completed, the annealing box body heats the aluminum alloy frame in the heating process; according to the invention, the heat treatment processing of the frame part is not influenced, the heating speed can be slowed down according to the requirement of the treatment temperature in the annealing process, the thermal deformation condition of the frame part caused by too fast heating is avoided, the surface of the frame part can be protected while too fast heating is avoided, and the heat treatment quality of the frame part in the whole heat treatment process is improved; and factors influencing surface defects of the frame piece are reduced.
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Description

Technical Field

[0001] The invention belongs to the technical field of heat treatment of aluminum alloy solar frame, in particular to a heat treatment process of photovoltaic aluminum alloy solar frame. Background Art

[0002] Photovoltaic aluminum alloy frame is a component of solar panels, usually made of aluminum alloy, used to protect the edges of solar panels and enhance their structural strength. In the manufacture of photovoltaic aluminum alloy frames, the appropriate heat treatment process is very important. Common aluminum alloy heat treatment methods include: annealing, solution treatment, aging treatment and T6 treatment.

[0003] For example, an annealing device for the production of aluminum alloy profiles for doors and windows with a publication number of CN113667911B comprises an annealing furnace, a furnace cover rotatably connected to the opening of the annealing furnace, and a plurality of conveying rollers rotatably connected to the annealing furnace. A bracket is also provided in the annealing furnace, and a support mechanism fixedly connected to the upper end of the bracket is provided. The support mechanism is located on the side of the conveying roller away from the furnace cover. The support mechanism consists of a fixed plate, a fixed rod, a lifting plate and a stopper. The lower surface of the fixed plate is fixedly connected to the bracket, and fixed blocks fixedly connected to the conveying roller are provided on all four sides of the fixed plate away from the conveying roller.

[0004] The above patent has the problem that when annealing the aluminum alloy frame, there is a lack of corresponding measures to buffer the introduction of high-temperature gas, which causes the temperature inside the annealing furnace to rise too quickly, which may cause thermal deformation of the aluminum alloy frame and affect the annealing quality of the aluminum alloy frame. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a photovoltaic aluminum alloy solar frame heat treatment process.

[0006] A photovoltaic aluminum alloy solar frame heat treatment process specifically includes the following steps: S1. First check and clean the aluminum alloy frame to ensure that there are no defects on the surface of the aluminum alloy frame; S2. The aluminum alloy frame is loaded into the annealing box through the clamping mechanism. After the loading is completed, the annealing box is heated to heat the aluminum alloy frame. During the heating process, the temperature in the annealing box furnace is buffered by the temperature buffer structure so that the temperature in the furnace does not rise too quickly. S3. After the set heating temperature is reached in the furnace, the temperature inside the annealing box is maintained to make the internal structure of the aluminum alloy frame uniform, thereby completing the annealing process of the aluminum alloy frame in the heat treatment process.

[0007] Preferably, the annealing box includes a clamping mechanism disposed inside, and a temperature buffer structure for buffering the temperature in the furnace is disposed on the right side of the clamping mechanism, and the temperature buffer structure includes: An insulated box for transferring gas located on the right side of the clamping mechanism, wherein a gas supply pipe penetrating the annealing box and exposed to the outside is arranged on the right side of the insulated box; A buffer component is installed on the upper surface of the annealing box and is used to buffer and cool the gas entering the thermal insulation box. The buffer component includes a plurality of buffer cooling plates that are lifted and used to buffer the gas in the thermal insulation box. A plurality of ventilation holes are evenly opened on the surface of the buffer cooling plates.

[0008] Preferably, a slot corresponding to the position of the buffer cooling plate is opened inside the insulation box, an exhaust hole is opened on the left side of the insulation box, a filter frame covering the exhaust hole is arranged on the inner surface of the left side of the insulation box, and the filter frame is filled with dry material.

[0009] Preferably, the buffer component also includes insulation strips fixed on the upper and lower surfaces of the buffer cooling plates, and a protective box is provided on the upper surface of the annealing box body to surround and protect the multiple buffer cooling plates. The protective box is provided with a partition plate inside to divide its internal space into multiple independent spaces, and a buffer cooling plate is provided in each independent space.

[0010] Preferably, a reeling rod located above the buffer cooling plate is provided inside the upper end of the protection box, and a lifting rope is provided between the reeling rod and the buffer cooling plate.

[0011] Preferably, the clamping mechanism for clamping and fixing the frame includes: A support plate installed inside the left end of the annealing box, a plurality of clamping members are arranged between the support plate and the inner side of the insulation box, and a frame member is clamped between two clamping members that are relatively distributed; An exhaust component is installed between the support plate and the thermal insulation box, and the exhaust component includes an air supply pipe located outside the frame member, and a telescopic pipe is arranged between the right end of the air supply pipe and the thermal insulation box.

[0012] Preferably, the telescopic tube on the right side is connected to the exhaust port, and the telescopic tube is communicated with the interior of the temperature insulation box.

[0013] Preferably, the upper and lower surfaces of the air supply pipe are provided with air supply nozzles extending to the outer surface of the frame member.

[0014] Preferably, the clamping member for flexibly clamping and fixing the frame member comprises: A telescopic column mounted on the inner side of the support plate; A clamping plate for clamping and fixing the edge of the frame member; and a telescopic column mounted between the clamping plate and the mounting plate.

[0015] Preferably, a cooling member for cooling the buffer cooling plate again is provided on the rear surface of the protection box, and the cooling member comprises: An extension pipe extending through the protective box to each independent space; A distribution pipe is connected to the two extension pipes, and a vortex tube is arranged in the middle of the distribution pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention does not affect the heat treatment processing of the frame parts, and can slow down the heating speed in the annealing process according to the needs of the treatment temperature, thereby avoiding the thermal deformation of the frame parts due to excessive heating. While avoiding excessive heating, the surface of the frame parts can be protected, thereby improving the heat treatment quality of the frame parts in the entire heat treatment process and reducing the factors that affect the surface defects of the frame parts.

[0017] (2) The clamping mechanism designed in the present invention can not only realize the detachable clamping and fixing of the frame member, but also allow the introduced protective gas to be evenly distributed on the surface of the frame member, thereby protecting the surface of the frame member during heat treatment. At the same time, the installation angle of the frame member can be flexibly changed, and different sizes of the frame member can be adapted within a certain range, thereby expanding the heat treatment range of the frame member and improving convenience.

[0018] (3) The present invention can cool the buffer cooling plate stored in the protective box by means of a designed cooling component, so that the buffer cooling plate maintains a certain temperature, and facilitates the buffer cooling plate to be lowered into the insulation box to play a certain auxiliary cooling effect on the gas. The cooled gas enters the annealing box to slow down the temperature increase in the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the annealing device in the aluminum alloy solar frame process of the present invention; Figure 2 It is a rear view structural schematic diagram of the annealing device in the aluminum alloy solar frame process of the present invention; Figure 3 For the present invention Figure 1 A schematic cross-sectional view of the annealing device; Figure 4 For the present invention Figure 3 Schematic diagram of the structure of the middle insulation box; Figure 5 For the present invention Figure 4 A schematic diagram of the structure of the buffer component; Figure 6 For the present invention Figure 5 A partial cross-sectional view of the middle buffer cooling plate; Figure 7 For the present invention Figure 3 A schematic diagram of the structure of the clamping mechanism; Figure 8 For the present invention Figure 7 A schematic diagram of the structure of the clamping member; Fig. 9 For the present invention Figure 7 Structural schematic diagram of the middle exhaust component; Fig.10 For the present invention Figure 3 Structural schematic diagram of the middle blowing cooling component; In the figure: 100, annealing box; 101, box door; 102, recovery cover; 200, temperature buffer structure; 201, temperature insulation box; 2011, card slot; 2012, filter frame; 2013, drying material; 202, air supply pipe; 203, buffer member; 2031, buffer cooling plate; 2032, insulation strip; 2033, partition plate; 2034, driving motor; 2035, winding rod; 2036, lifting rope; 2037, ventilation hole; 2038, protection Box; 204, cooling component; 2041, vortex tube; 2042, bracket; 2043, extension tube; 2044, distribution tube; 2045, connecting tube; 300, clamping mechanism; 301, support plate; 302, clamping component; 3021, clamping plate; 3022, arc-shaped protrusion; 3023, telescopic column; 3024, mounting plate; 303, frame member; 304, exhaust component; 3041, air supply pipe; 3042, air supply nozzle; 3043, telescopic tube. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0021] See also Figure 1 - Figure 5 and Fig. 9 The present application provides a photovoltaic aluminum alloy solar frame heat treatment process, which specifically includes the following steps: S1. First check and clean the aluminum alloy frame to ensure that there are no defects on the surface of the aluminum alloy frame; S2, the aluminum alloy frame is loaded into the annealing box 100 through the clamping mechanism 300. How the annealing box 100 heats the frame is a prior art. After the furnace is loaded, the annealing box 100 heats the aluminum alloy frame. During the heating process, the temperature buffer structure 200 is used to buffer the temperature in the annealing box 100 so that the temperature in the furnace does not rise too quickly. S3. After the set heating temperature is reached in the furnace, the internal temperature of the annealing box 100 is maintained to make the internal structure of the aluminum alloy frame uniform, thereby completing the annealing process of the aluminum alloy frame in the heat treatment process.

[0022] In this embodiment, preferably, the annealing box 100 includes a clamping mechanism 300 disposed inside, and a temperature buffer structure 200 for buffering the temperature in the furnace is disposed on the rear surface of the annealing box 100. The temperature buffer structure 200 is disposed on the right side of the clamping mechanism 300. The heat treatment processing of the frame member 303 is not affected, and the heating speed can be slowed down according to the processing needs during the annealing process to avoid the thermal deformation of the frame member 303 due to excessive heating, thereby improving the heat treatment quality of the frame member 303 in the entire heat treatment process. The temperature buffer structure 200 includes: The heat-insulating box 201 for transferring gas is located on the right side of the clamping mechanism 300. The heat-insulating box 201 has a heat-insulating effect on the temperature inside the annealing box 100. A gas supply pipe 202 that penetrates the annealing box 100 and is exposed to the outside is arranged on the right side of the heat-insulating box 201. The gas supply pipe 202 may be provided with a valve and connected to an external protective gas supply device; A buffer component 203 is installed on the upper surface of the annealing box 100 and is used for buffering and cooling the gas entering the thermal insulation box 201. The buffer component 203 includes a plurality of buffer cooling plates 2031 that are lifted and lowered to buffer the gas in the thermal insulation box 201. The plurality of buffer cooling plates 2031 can be alternately positioned in the thermal insulation box 201 to achieve continuous cooling of the introduced protective gas, and the cooling effect of the protective gas can be adjusted step by step. A plurality of ventilation holes 2037 are evenly provided on the surface of the buffer cooling plate 2031 to facilitate the passage of the protective gas. The ventilation holes 2037 are cross-sectionally viewed in a Z shape to facilitate the protective gas to fully contact the plate body when passing through, thereby improving the cooling effect.

[0023] In this embodiment, preferably, a slot 2011 corresponding to the position of the buffer cooling plate 2031 is opened inside the insulation box 201, and the size of the slot 2011 matches the size of the insulation strip 2032, so that the insulation strip 2032 is located at the notch of the slot 2011, and the space in the insulation box 201 and the space in the protection box 2038 can be blocked. For example, the buffer cooling plate 2031 is located in the protection box 2038, the insulation strip 2032 below is located in the slot 2011 above, and the buffer cooling plate 2031 is located in the insulation box 201 In the figure, the upper insulation strip 2032 is located in the upper slot 2011, so that the protective box 2038 is always separated from the space of the insulation box 201. Exhaust holes are provided on the left side of the insulation box 201. The number of exhaust holes corresponds to the number of telescopic tubes 3043, which facilitates the gas to enter the telescopic tubes 3043. The inner surface of the left side of the insulation box 201 is provided with a filter frame 2012 covering the exhaust holes. The filter frame 2012 is filled with drying material 2013. The drying material 2013 can be zeolite, which is convenient for drying the protective gas introduced.

[0024] In this embodiment, preferably, the buffer component 203 also includes an insulating strip 2032 fixed on the upper and lower surfaces of the buffer cooling plate 2031, and a protective box 2038 is provided on the upper surface of the annealing box 100 to surround and protect the multiple buffer cooling plates 2031. The front surface of the protective box 2038 is provided with an air outlet position, and the protective box 2038 is provided with a partition plate 2033 inside the protective box 2038 to divide its internal space into multiple independent spaces, so that each buffer cooling plate 2031 does not affect each other, and a buffer cooling plate 2031 is provided in each independent space.

[0025] In this embodiment, preferably, a winding rod 2035 located above the buffer cooling plate 2031 is provided inside the upper end of the protective box 2038, one end of the winding rod 2035 is connected to the driving motor 2034, and the driving motor 2034 is fixed on the outer surface of the protective box 2038. A lifting cable 2036 is provided between the winding rod 2035 and the buffer cooling plate 2031, and the lifting cable 2036 can be rolled up or unfolded to realize the lifting and lowering of the buffer cooling plate 2031.

[0026] In summary, when in use, after the frame member 303 is loaded into the furnace, the entire annealing box 100 is closed, and the annealing box 100 is gradually heated to the set temperature. If the temperature rises quickly, the buffer cooling plate 2031 on the far right is selected according to the speed of the temperature rise, and the driving motor 2034 is operated to drive the winding rod 2035 to rotate, and the lifting cable 2036 is unfolded, and the buffer cooling plate 2031 moves downward and is embedded in the lower slot 2011, and the heat insulation strip 2032 above the buffer cooling plate 2031 is located in the upper slot 2011. The protective gas will not enter the protection box 2038, and then the valve of the gas supply pipe 202 is opened to pass the protective gas, and the protective gas enters the temperature-isolating box 201 and passes through the buffer cooling plate 2031 to cool the gas to a certain extent, thereby reducing the impact of the gas. If it is necessary to strengthen the buffering of the temperature, the temperature of the gas discharged from the vortex tube 2041 is changed. This is the prior art. The gas discharged from the vortex tube 2041 acts on the remaining buffer cooling plates 2031 in the protection box 2038, further buffering the buffer cooling plates 20 31 cools down, so that the remaining buffer cooling plates 2031 on the left side are lowered and located in the temperature isolation box 201, and the protective gas is further cooled, and the buffer cooling plate 2031 that comes down first can move upward to cool down the buffer cooling plate 2031 again. The whole process can realize both continuous auxiliary cooling of the protective gas and step-by-step cooling of the protective gas. The cooled gas maintains a suitable temperature and passes through the filter frame 2012, and is adsorbed and dried by the drying material 2013. The protective gas enters the air supply pipe 3 through the telescopic pipe 3043 041, and is discharged from the air supply nozzle 3042 to act on the frame member 303, thereby protecting the frame member 303. At the same time, the gas flows outward to cool down the entire interior of the box, thereby slowing down the rate of temperature rise and avoiding the situation where the temperature rise is too fast and causes thermal deformation. The gas is discharged through the recovery cover 102 set on the rear surface of the annealing box 100. In the annealing process, the situation of excessive temperature rise is alleviated, the surface quality of the frame member 303 is improved, and thus the quality of the frame member 303 in the entire heat treatment process is improved. Embodiment 2

[0027] Reference Figure 6 - Figure 8 , which is the second embodiment of the present invention.

[0028] In this embodiment, preferably, the clamping mechanism 300 is used to realize the detachable clamping and fixing of the frame member 303, and the introduced protective gas can be evenly distributed on the surface of the frame member 303, so as to protect the surface heat treatment of the frame member 303. At the same time, the installation angle of the frame member 303 can be flexibly changed, and different sizes of the frame member 303 can be adapted within a certain range, so as to expand the heat treatment range and convenience of the frame member 303. The clamping mechanism 300 for clamping and fixing the frame includes: A support plate 301 is installed inside the left end of the annealing box 100. A plurality of clamping members 302 are arranged between the support plate 301 and the inner side of the insulation box 201. A frame member 303 is clamped between two relatively distributed clamping members 302. The exhaust component 304 is installed between the support plate 301 and the thermal insulation box 201. The exhaust component 304 includes an air supply pipe 3041 located on the outside of the frame member 303. A telescopic tube 3043 is arranged between the right end of the air supply pipe 3041 and the thermal insulation box 201. The telescopic tube 3043 will maintain a certain angle when an external force is applied. In the absence of external force, the air supply pipe 3041 will not easily fall abnormally due to its own gravity and fluctuations during air supply.

[0029] In this embodiment, preferably, the telescopic tube 3043 on the right side is connected to the exhaust port. The telescopic tube 3043 is a steel tube body, which can withstand high temperature and has a certain telescopic effect. It is convenient to change the height position and a certain angle position of the air supply pipe 3041, which is convenient for the installation of the frame member 303 and convenient for being located at a suitable air supply protection position outside the frame member 303. The telescopic tube 3043 is connected to the inside of the thermal insulation box 201.

[0030] In this embodiment, preferably, the upper and lower surfaces of the air supply pipe 3041 are provided with air supply nozzles 3042 extending to the outer surface of the frame member 303. A plurality of evenly distributed air supply nozzles 3042 are convenient for expanding the air supply area. In addition, side nozzles extending to the side positions of the frame member 303 may be provided, which are not drawn in this application.

[0031] In this embodiment, preferably, the clamping member 302 for flexibly clamping and fixing the frame member 303 includes: The telescopic column 3023 is installed on the inner side of the support plate 301. The friction resistance between the telescopic column 3023 extending or retracting the column body requires external force to move, so that the frame member 303 is not prone to abnormal movement during the heat treatment process; A clamping plate 3021 is fixed to the edge of the frame member 303, and an arc-shaped protrusion 3022 is arranged inside the clamping plate 3021 to facilitate contact with the frame member 303, increase the clamping force, and reduce the contact area, so as to facilitate the heat treatment of the surface of the frame member 303; And a telescopic column 3023 installed between the clamping plate 3021 and the mounting plate 3024. The telescopic column 3023 is used to facilitate changing the lateral position of the clamping plate 3021, and the telescopic column 3023 is rotatably connected to the clamping plate 3021. The friction resistance between the two makes it impossible to apply external force, and the frame member 303 is not easy to rotate abnormally, which facilitates changing the angle of the clamping plate 3021.

[0032] In summary, when in use, during the installation of the frame member 303, external force is applied to move the air supply pipe 3041 outward, and the telescopic tube 3043 is bent accordingly, so that there is enough space between the air supply pipes 3041, and the frame member 303 is installed from the inside to the outside, and the frame member 303 is installed between the two opposite clamping plates 3021, and external force is applied to make the clamping plate 3021 rotate and move toward the frame member 303, so that the edge of the frame member 303 is stuck in the clamping plate 3021, and the arc-shaped protrusion 3022 increases the clamping force on the frame member 303. After the frame member 303 is installed, external force is applied again to move the air supply pipe 3041 downward to the outside of the frame member 303, and the air supply nozzle 3042 is located at a suitable position outside the frame member 303, and then the box door 101 is closed, so that the entire annealing box 100 is closed, providing a suitable working environment for the heat treatment of the frame member 303. Embodiment 3

[0033] Reference Fig. 9 , which is the third embodiment of the present invention.

[0034] In this embodiment, preferably, a cooling member 204 for cooling the buffer cooling plate 2031 again is provided on the rear surface of the protection box 2038, an air outlet is provided on the front surface of the protection box 2038, and a bracket 2042 for supporting the vortex tube 2041 is provided on the surface of the protection box 2038. The cooling member 204 can be used to cool the buffer cooling plate 2031 stored in the protection box 2038, so that the buffer cooling plate 2031 maintains a certain temperature, and facilitates the buffer cooling plate 2031 to descend into the insulation box 201 to play a certain auxiliary cooling effect on the gas. The cooled gas enters the annealing box 100 to slow down the temperature rise in the furnace body. The cooling member 204 includes: An extension pipe 2043 extending through the protection box 2038 to each independent space, the extension pipe 2043 is provided with a connecting pipe 2045 extending to the independent space, and the connecting pipe 2045 is communicated with the interior of the extension pipe 2043; A distribution pipe 2044 communicates with the two extension pipes 2043 , and a vortex tube 2041 is disposed in the middle of the distribution pipe 2044 . The vortex tube 2041 is connected to an external gas supply system to pass the cooled gas into the distribution pipe 2044 .

[0035] In summary, when the buffer cooling plate 2031 is stored in the protection box 2038, the temperature of the buffer cooling plate 2031 itself after use may be the same as or even slightly higher than the protective gas introduced. Therefore, the vortex tube 2041 can be operated, and the gas introduced into the vortex tube 2041 is discharged after reaching the set temperature, enters the extension pipe 2043 and the connecting pipe 2045 through the distribution pipe 2044, and then enters the independent space in the protection box 2038 respectively, which plays an auxiliary cooling role for each buffer cooling plate 2031 in the independent space, and the gas in the protection box 2038 is discharged through the air outlet, so that the buffer cooling plate 2031 maintains a suitable temperature when entering the insulation box 201. Embodiment 4

[0036] This embodiment is obtained by combining the first embodiment, the second embodiment and the third embodiment.

[0037] The working principle and use process of the present invention are as follows: first, the aluminum alloy frame is inspected and cleaned to ensure that there are no defects on the surface of the aluminum alloy frame; the aluminum alloy frame is loaded into the annealing box 100 through the clamping mechanism 300. How the annealing box 100 heats the frame is a prior art. After the furnace is loaded, the annealing box 100 heats the aluminum alloy frame. During the heating process, the temperature in the annealing box 100 is buffered by the temperature buffer structure 200 so that the temperature in the furnace will not rise too quickly; after the set heating temperature is reached in the furnace, the internal temperature of the annealing box 100 is maintained so that the internal structure of the aluminum alloy frame is uniform, and the annealing process of the aluminum alloy frame in the heat treatment process can be completed.

[0038] The above embodiments are only used to illustrate the technical method 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 method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A photovoltaic aluminum alloy solar frame heat treatment process, characterized in that: The specific steps include: S1. First check and clean the aluminum alloy frame to ensure that there are no defects on the surface of the aluminum alloy frame; S2, loading the aluminum alloy frame into the annealing box (100) through the clamping mechanism (300), and after the loading is completed, heating the aluminum alloy frame by heating the annealing box (100). During the heating process, the temperature in the annealing box (100) is buffered by the temperature buffer structure (200) so that the temperature in the furnace does not rise too quickly; S3. After the set heating temperature is reached in the furnace, the internal temperature of the annealing box (100) is maintained to make the internal structure of the aluminum alloy frame uniform, thereby completing the annealing process of the aluminum alloy frame in the heat treatment process.

2. A photovoltaic aluminum alloy solar frame heat treatment process according to claim 1, characterized in that: The annealing box (100) comprises a clamping mechanism (300) arranged inside, and a temperature buffer structure (200) for buffering the temperature in the furnace is arranged on the right side of the clamping mechanism (300), and the temperature buffer structure (200) comprises: An insulated box (201) for transferring gas and located on the right side of the clamping mechanism (300), wherein a gas supply pipe (202) penetrating the annealing box (100) and exposed to the outside is provided on the right side of the insulated box (201); A buffer component (203) is installed on the upper surface of the annealing box (100) and is used to buffer and cool the gas entering the thermal isolation box (201). The buffer component (203) comprises a plurality of buffer cooling plates (2031) that are lifted and used to buffer the gas in the thermal isolation box (201). A plurality of ventilation holes (2037) are evenly provided on the surface of the buffer cooling plates (2031).

3. A photovoltaic aluminum alloy solar frame heat treatment process according to claim 2, characterized in that: A slot (2011) corresponding to the position of the buffer cooling plate (2031) is provided inside the thermal insulation box (201), an exhaust hole is provided on the left side of the thermal insulation box (201), a filter frame (2012) covering the exhaust hole is provided on the inner surface of the left side of the thermal insulation box (201), and the filter frame (2012) is filled with dry material (2013).

4. A photovoltaic aluminum alloy solar frame heat treatment process according to claim 3, characterized in that: The buffer component (203) further comprises a heat insulating strip (2032) fixed on the upper and lower surfaces of the buffer cooling plate (2031); the upper surface of the annealing box (100) is provided with a protective box (2038) surrounding and protecting the plurality of buffer cooling plates (2031); the protective box (2038) is provided with a partition plate (2033) inside the protective box (2038) for dividing the internal space thereof into a plurality of independent spaces, and each independent space is provided with a buffer cooling plate (2031).

5. A photovoltaic aluminum alloy solar frame heat treatment process according to claim 4, characterized in that: A reeling rod (2035) located above the buffer cooling plate (2031) is provided inside the upper end of the protection box (2038), and a lifting rope (2036) is provided between the reeling rod (2035) and the buffer cooling plate (2031).

6. A photovoltaic aluminum alloy solar frame heat treatment process according to claim 4, characterized in that: The clamping mechanism (300) for clamping and fixing the frame comprises: A support plate (301) installed inside the left end of the annealing box (100), a plurality of clamping members (302) are arranged between the support plate (301) and the inner side of the insulation box (201), and a frame member (303) is clamped between two clamping members (302) that are arranged opposite to each other; An exhaust component (304) is installed between the support plate (301) and the thermal insulation box (201), wherein the exhaust component (304) comprises an air supply pipe (3041) located outside the frame member (303), and a telescopic pipe (3043) is provided between the right end of the air supply pipe (3041) and the thermal insulation box (201).

7. A photovoltaic aluminum alloy solar frame heat treatment process according to claim 6, characterized in that: The telescopic tube (3043) on the right side is connected to the exhaust port, and the telescopic tube (3043) is in communication with the interior of the temperature-isolating box (201).

8. A photovoltaic aluminum alloy solar frame heat treatment process according to claim 7, characterized in that: The upper and lower surfaces of the air supply pipe (3041) are provided with air supply nozzles (3042) extending to the outer surface of the frame member (303).

9. A photovoltaic aluminum alloy solar frame heat treatment process according to claim 7, characterized in that: The clamping member (302) for flexibly clamping and fixing the frame member (303) comprises: A telescopic column (3023) mounted on the inner side of the support plate (301); A clamping plate (3021) for clamping and fixing the edge of the frame member (303); and a telescopic column (3023) installed between the clamping plate (3021) and the mounting plate (3024).

10. A photovoltaic aluminum alloy solar frame heat treatment process according to claim 7, characterized in that: The rear surface of the protection box (2038) is provided with a cooling component (204) for cooling the buffer cooling plate (2031) again, and the cooling component (204) comprises: An extension pipe (2043) extending through the protection box (2038) and into each independent space; A distribution pipe (2044) communicates with the two extension pipes (2043), wherein a vortex tube (2041) is provided in the middle of the distribution pipe (2044).

Citation Information

Patent Citations

  • Annealing apparatus for the production of aluminum alloy profiles for doors and windows

    CN113667911B