An online solution quenching process for high performance forging of six series aluminum alloys

Abstract

The present invention relates to an online solid solution quenching process for high-performance forging of six series aluminum alloys, comprising the following specific steps: S1, solid solution heating of bar material: putting aluminum bar material into a heating furnace, the heating furnace forms the bar material into a material in a solid solution state, and Mg2Si material is mixed into the solid solution material; S2, material preforming: cooling the obtained material and sending it to a preforming machine, the preforming machine performs roughing, bending, roll forging, flattening, and wedge cross rolling on the material to form a rough material blank of a suitable shape; S3, die forging operation: sending the rough material blank into the die forging machine, the die forging machine controls the opening and closing of the die, the die forges the rough material blank, so that the rough material blank forms a product, and the die needs to be heated before die forging; S4, quenching operation; S5, trimming the product; S6, aging treatment. The present invention has the characteristics of greatly reducing the energy consumption required for production, simplifying the steps of forging, reducing the energy consumption of heat treatment, improving the space utilization rate of the plant area, and improving the excellent performance of parts.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy forging technology, and in particular to an online solid solution quenching process for high-performance forging of six series aluminum alloys. Background Art

[0002] When conventional six-series aluminum alloys are forged, they usually only need to go through heating solution, die forging, quenching and trimming operations. However, the products produced by this process have poor internal crystal structure, resulting in poor overall product quality. At the same time, the production environment required for each process step is different, so the production lines need to be arranged separately, which will result in multiple heating processes, thereby increasing the energy consumption required for production. In order to solve the above technical problems, the entire process needs to be improved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an online solid solution quenching process for high-performance forging of six series aluminum alloys, which has the characteristics of greatly reducing the energy consumption required for production, simplifying the forging steps, reducing heat treatment energy consumption, improving the space utilization rate of the plant, and improving the excellent performance of parts.

[0004] The technical solution adopted by the present invention to solve its technical problem is: to provide an online solid solution quenching process for high-performance forging of six series aluminum alloys, including the following specific steps: S1, solid solution heating of bar material: putting aluminum bar material into a heating furnace, the heating furnace forms the bar material into a material in a solid solution state, and Mg2Si material is mixed into the solid solution material; S2, material preforming: cooling the obtained material and sending it to a preforming machine, the preforming machine performs roughing, bending, roll forging, flattening, and wedge cross rolling on the material to form a rough material of a suitable shape; S3, performing die forging operation: sending the rough material into the die forging machine, and controlling the opening and closing of the die by the die forging machine. Forging the rough material to form the product, the die needs to be heated before die forging; S4, quenching operation: the product after die forging is sent to the quenching tank, and the quenching medium in the quenching tank quenches the product; S5, trimming the product: the product is placed in the trimming die of the trimming machine, the trimming machine controls the trimming die to close, the trimming die forms a cutting force, and the flash on the product is removed; S6, aging treatment: the product after trimming is placed in the aging furnace, during the treatment, the temperature in the aging furnace is increased to 170℃~200℃, and after aging is completed, the product is cooled and taken out.

[0005] In this technical solution, the solution heating process and the material preforming process are placed on the same production line to ensure that the material can be directly pre-forged after solution heating, so that the lattice inside the material is more stable, while avoiding secondary heating and reducing energy consumption. After that, the pre-forged material is directly subjected to the die forging process, which can ensure that the material does not require secondary heating for die forging, greatly reducing production costs, and by adding a trimming process to ensure the quality of the product's exterior, and by adding an aging treatment, the product's internal structure is more stable and the overall quality of the product is improved.

[0006] As a supplement to the present technical solution, the product in S6 is placed in an aging furnace, and the aging furnace keeps the product warm for 4 to 9 hours.

[0007] As a supplement to the present technical solution, the temperature of the solid solution in S1 is between 530°C and 560°C.

[0008] As a supplement to the present technical solution, the mold heating temperature in S3 is between 150°C and 250°C.

[0009] As a supplement to the present technical solution, the materials between S1, S2, S3, S4, S5 and S6 are automatically transported by a manipulator, and an infrared temperature detector is installed on the clamping end of the manipulator, which can monitor the temperature of the material or product 100%.

[0010] As a supplement to the present technical solution, the temperature of the quenching medium in S4 is between 20°C and 45°C.

[0011] As a supplement to the present technical solution, a heating template is installed on the upper and lower ends of the mold in S3, a heating plate mounting groove is provided on the upper or lower side of the heating template, a heating tube panel is installed in the heating plate mounting groove, a number of heating tubes are evenly installed in the middle of the heating tube panel, and the lower ends of the heating tubes vertically pass through the heating template, a power connector is installed on one side of the heating template, a pin structure extending to the rear side of the power connector is installed on one side of the heating tube panel, the lower end of the heating tube is inserted into the mold, and a temperature detector is installed on one side of the mold.

[0012] As a supplement to the present technical solution, an isolation plate is horizontally arranged in the middle of the quenching tank body, and the isolation plate divides the quenching tank body into an upper quenching layer and a lower quenching layer. A rectangular through hole is provided in the middle of the isolation plate, and the isolation plate is made of thermal insulation material. When the product enters the quenching tank for quenching, the product first contacts the upper quenching layer, and the upper quenching layer will generate high temperature. Then, the product enters the lower quenching layer through the rectangular through hole through a manipulator, and the lower quenching layer quenches the product again. Only the rectangular through hole portion between the upper quenching layer and the lower quenching layer can exchange heat. Therefore, when the upper quenching layer is heated up, it will not affect the temperature of the lower quenching layer, thereby ensuring that the quenching medium can better quench the product.

[0013] As a supplement to the present technical solution, two water inlet pipes are symmetrically installed on both sides of the quenching tank, each water inlet pipe is provided with four water inlet pipe openings inserted into the upper quenching layer and the lower quenching layer, a temperature controller is installed in the quenching tank, drainage channels are provided in the four side walls of the quenching tank, and an overflow tank structure is provided at the upper part of the inner wall of the notch of the quenching tank, and the overflow tank structure is connected to the drainage channel.

[0014] As a supplement to the technical solution, a drainage base is installed on the lower end surface of the quenching tank, and a drainage pool connected to the lower end of the drainage channel is arranged in the lower end of the drainage base.

[0015] Beneficial effects: The present invention relates to an online solution quenching process for high-performance forging of six-series aluminum alloys, in which the solution heating process and the material preforming process are placed on the same assembly line, ensuring that the material can be directly subjected to secondary pre-forging after solution heating, making the lattice inside the material more stable, while avoiding secondary heating and reducing energy consumption. The pre-forged material is then directly subjected to the die forging process, ensuring that the material does not require secondary heating for die forging, greatly reducing production costs, and ensuring the quality of the product's exterior by adding a trimming process, and making the product's internal structure more stable by adding an aging treatment, thereby improving the overall quality of the product, greatly reducing the energy consumption required for production, simplifying the forging steps, reducing heat treatment energy consumption, improving the space utilization rate of the plant, and improving the performance of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the process of the present invention;

[0017] Figure 2 is a front view of the mold of the present invention;

[0018] Figure 3 is a top view of the heating template of the present invention;

[0019] Figure 4 is a full cross-sectional view of the heating template of the present invention;

[0020] Figure 5 is a top view of the quenching tank of the present invention;

[0021] Figure 6 is a full cross-sectional view of the quenching tank of the present invention;

[0022] Figure 7 is a left side view of the quenching tank of the present invention;

[0023] Figure 8 It is a front view of the quenching tank described in the present invention.

[0024] Illustration: 1. Mold, 2. Temperature detector, 3. Heating template, 4. Heating plate mounting groove, 5. Heating tube panel, 6. Heating tube, 7. Power connector, 8. Pin structure, 9. Quenching tank, 10. Water inlet pipe, 11. Overflow tank structure, 12. Isolation plate, 13. Rectangular through hole, 14. Lower quenching layer, 15. Upper quenching layer, 16. Drainage channel, 17. Drainage pool, 18. Drainage base, 19. Water inlet pipe. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0026] The embodiment of the present invention relates to an online solution quenching process for high performance forging of six series aluminum alloys, such as Figure 1As shown, it includes the following specific steps: S1, solid solution heating of bar material: putting aluminum bar material into a heating furnace, the heating furnace forms the bar material into a material in a solid solution state, and Mg2Si material is mixed into the solid solution material; S2, material preforming: cooling the obtained material and sending it to a preforming machine, the preforming machine performs roughing, bending, roll forging, flattening, and wedge cross rolling on the material to form a rough material of a suitable shape; S3, performing die forging operation: sending the rough material into the die forging machine, the die forging machine controls the opening and closing of the die 1, the die 1 forges the rough material, so that the rough material is formed into a product, and then The die 1 needs to be heated before die forging; S4, quenching operation: the product after die forging is sent into the quenching tank 9, and the quenching medium in the quenching tank 9 performs a quenching operation on the product; S5, trimming the product: the product is placed in the trimming die in the trimming machine, the trimming machine controls the trimming die to close, the trimming die forms a cutting force, and the flash on the product is removed; S6, aging treatment: the product after trimming is placed in the aging furnace. During the treatment, the temperature in the aging furnace is increased to 170℃~200℃. After aging is completed, wait for the product to cool down and take it out.

[0027] As a supplement to the present technical solution, the product in S6 is placed in an aging furnace, and the aging furnace keeps the product warm for 4 to 9 hours.

[0028] As a supplement to the present technical solution, the temperature of the solid solution in S1 is between 530°C and 560°C.

[0029] As a supplement to the present technical solution, the mold heating temperature in S3 is between 150°C and 250°C.

[0030] As a supplement to the present technical solution, the materials between S1, S2, S3, S4, S5 and S6 are automatically transported by a manipulator, and an infrared temperature detector is installed on the clamping end of the manipulator, which can monitor the temperature of the material or product 100%.

[0031] As a supplement to the present technical solution, the temperature of the quenching medium in S4 is between 20°C and 45°C.

[0032] like Figure 2-4 As shown, as a supplement to the present technical solution, a heating template 3 is installed on the upper and lower ends of the mold 1 in S3, a heating plate mounting groove 4 is provided on the upper or lower side of the heating template 3, a heating tube panel 5 is installed in the heating plate mounting groove 4, a plurality of heating tubes 6 whose lower ends vertically pass through the heating template 3 are evenly installed in the middle of the heating tube panel 5, a power connector 7 is installed on one side of the heating template 3, a pin structure 8 extending to the rear side of the power connector 7 is installed on one side of the heating tube panel 5, the lower end of the heating tube 6 is inserted into the mold 1, and a temperature detector 2 is installed on one side of the mold 1.

[0033] like Figure 5-8 As shown, as a supplement to the present technical solution, an isolation plate 12 is horizontally arranged in the middle of the quenching tank 9, and the isolation plate 12 divides the quenching tank 9 into an upper quenching layer 15 and a lower quenching layer 14. A rectangular through hole 13 is provided in the middle of the isolation plate 12. The isolation plate 12 is made of thermal insulation material. When the product enters the quenching tank 9 for quenching, the product first contacts with the upper quenching layer 15, and the upper quenching layer 15 will generate high temperature. Then, the product enters the lower quenching layer 14 through the rectangular through hole 13 through the manipulator, and the lower quenching layer 14 quenches the product again. Only the rectangular through hole 13 between the upper quenching layer 15 and the lower quenching layer 14 can exchange heat. Therefore, when the upper quenching layer 15 is heated, it will not affect the temperature of the lower quenching layer 14, thereby ensuring that the quenching medium can better quench the product.

[0034] As a supplement to the present technical solution, two water inlet pipes 10 are symmetrically installed on both sides of the quenching tank 9, and each water inlet pipe 10 is provided with four water inlet pipe openings 19 inserted into the upper quenching layer 15 and the lower quenching layer 14. A temperature controller is installed in the quenching tank 9, and drainage channels 16 are provided in the four side walls of the quenching tank 9. An overflow tank structure 11 is provided at the upper part of the inner side wall of the notch of the quenching tank 9, and the overflow tank structure 11 is connected to the drainage channel 16.

[0035] As a supplement to the present technical solution, a drainage base 18 is installed on the lower end surface of the quenching tank 9 , and a drainage pool 17 connected to the lower end of the drainage channel 16 is arranged in the lower end of the drainage base 18 .

[0036] Example

[0037] When quenching, the robot moves the product to the middle position above the quenching tank 9, and then the robot moves down so that the product first contacts the upper quenching layer 15. The temperature of the quenching medium in the upper quenching layer 15 increases. However, due to the isolation plate 12 arranged in the middle, the upper quenching layer 15 will not increase the temperature of the lower quenching layer 14 too much. Therefore, the robot needs to move the product down again through the rectangular through hole 13 and enter the lower quenching layer 14. The quenching medium in the lower quenching layer 14 performs secondary quenching on the product to ensure that the overall temperature of the quenching medium is about 20°C to 45°C to quench the product. During the secondary quenching, due to the quenching The temperature controller inside the fire tank 9 senses that the temperature of the quenching medium is too high, and will give a water supply signal to the external pump body. The quenching medium in the core is transported to the water inlet pipe 10 through the motor pump body. The water inlet pipe 10 injects new low-temperature medium into the upper quenching layer 15 and the lower quenching layer 14 through four water inlet pipe openings 19, and the upper quenching layer 15 and the lower quenching layer 14 are cooled as a whole. After that, the robot rises the product and quenches the cooled upper quenching layer 15 for the third time. The whole process needs to be completed between 3 and 6 seconds, so that the product can fully contact with the low-temperature quenching medium, ensuring the completion of high-quality quenching operation and ensuring product quality.

Claims

1. An online solution quenching process for high-performance forging of six series aluminum alloys, characterized in that: The specific steps include: S1. Solid solution heating of the bar material: the aluminum bar material is placed in a heating furnace, the heating furnace forms the bar material into a solid solution state, and the Mg2Si material is mixed into the solid solution material; S2. Material preforming: The obtained material is cooled and sent to a preforming machine, which performs roughing, bending, roll forging, flattening, and wedge cross-rolling on the material to form a rough material of a suitable shape; S3, performing die forging operation: feeding the rough material into a die forging machine, and controlling the die forging machine to open and close the die (1), so that the die (1) forges the rough material so that the rough material is formed into a product. Before the die forging is performed, the die (1) needs to be heated; S4, quenching operation: the product after die forging is sent into the quenching tank (9), and the quenching medium in the quenching tank (9) performs a quenching operation on the product; S5. Trimming the product: putting the product into the trimming die of the trimming machine. The trimming machine controls the trimming die to close. The trimming die forms a cutting force to remove the flash on the product. S6. Perform aging treatment: Place the trimmed product into an aging furnace. During the treatment, increase the temperature in the aging furnace to 170°C to 200°C. After aging, wait for the product to cool down and take it out.

2. The online solution quenching process for high performance forging of six series aluminum alloys according to claim 1 is characterized in that: The product in S6 is placed in an aging furnace, and the aging furnace keeps the product warm for 4 to 9 hours.

3. The online solution quenching process for high performance forging of six series aluminum alloys according to claim 1 is characterized in that: The solid solution temperature in S1 is between 530°C and 560°C.

4. The online solution quenching process for high performance forging of six series aluminum alloys according to claim 1, characterized in that: In S3, the mold heating temperature is between 150°C and 250°C.

5. The online solution quenching process for high performance forging of six series aluminum alloys according to claim 1 is characterized in that: The materials between S1, S2, S3, S4, S5 and S6 are automatically transported by a robot, and an infrared temperature detector is installed on the clamping end of the robot, which can monitor the temperature of the material or product 100%.

6. The online solution quenching process for high performance forging of six series aluminum alloys according to claim 1 is characterized by: The temperature of the quenching medium in S4 is between 20°C and 45°C.

7. The online solution quenching process for high performance forging of six series aluminum alloys according to claim 1, characterized in that: In S3, a heating template (3) is installed on the upper and lower ends of the mold (1), a heating plate installation groove (4) is provided on the upper side or the lower side of the heating template (3), a heating tube panel (5) is installed in the heating plate installation groove (4), a plurality of heating tubes (6) whose lower ends vertically pass through the heating template (3) are evenly installed in the middle of the heating tube panel (5), a power connector (7) is installed on one side of the heating template (3), a pin structure (8) extending to the rear side of the power connector (7) is installed on one side of the heating tube panel (5), the lower end of the heating tube (6) is inserted into the mold (1), and a temperature detector (2) is installed on one side of the mold (1).

8. The online solution quenching process for high performance forging of six series aluminum alloys according to claim 1, characterized in that: An isolation plate (12) is arranged transversely in the middle of the quenching tank (9), and the isolation plate (12) divides the quenching tank (9) into an upper quenching layer (15) and a lower quenching layer (14). A rectangular through hole (13) is arranged in the middle of the isolation plate (12). The isolation plate (12) is made of a heat-insulating material. When the product enters the quenching tank (9) for quenching, the product first contacts the upper quenching layer (15), and the upper quenching layer (14) contacts the lower quenching layer (15). 5) will generate high temperature, and then enter the lower quenching layer (14) through the rectangular through hole (13) through the manipulator, and the lower quenching layer (14) will quench the product again. Only the rectangular through hole (13) can exchange heat between the upper quenching layer (15) and the lower quenching layer (14). Therefore, when the upper quenching layer (15) is heated, it will not affect the temperature of the lower quenching layer (14), thereby ensuring that the quenching medium can better quench the product.

9. The online solution quenching process for high performance forging of six series aluminum alloys according to claim 8, characterized in that: Two water inlet pipes (10) are symmetrically installed on both sides of the quenching tank (9), and each water inlet pipe (10) is provided with four water inlet pipe openings (19) inserted into the upper quenching layer (15) and the lower quenching layer (14). A temperature controller is installed in the quenching tank (9), and drainage channels (16) are arranged in the four side walls of the quenching tank (9). An overflow tank structure (11) is arranged at the upper part of the inner side wall of the notch of the quenching tank (9), and the overflow tank structure (11) is connected to the drainage channel (16).

10. The online solid solution quenching process for high performance forging of six series aluminum alloys according to claim 9, characterized in that: A drainage base (18) is installed on the lower end surface of the quenching tank (9), and a drainage pool (17) connected to the lower end of the drainage channel (16) is arranged in the lower end of the drainage base (18).

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