CN116571694A - Preparation method of low-energy aluminum hub for promoting carbon neutralization, hub and production line - Google Patents

Abstract

The invention discloses a preparation method of a low-energy aluminum hub for promoting carbon neutralization, a hub and a production line, comprising the following steps of aluminum ingot smelting: smelting an aluminum ingot into alloy aluminum water; high-pressure casting: transferring the alloy molten aluminum to a hub casting mold cavity, and pressing the alloy molten aluminum into a casting blank under a first high pressure and cooling the casting blank to a first preset temperature; precision forging: and forging and forming the casting blank at a second high pressure and a second preset temperature for one time to form the hub. The preparation method provided by the invention omits a casting process and a forging process, has the advantages of high precision, short production flow and high efficiency, and simultaneously meets the requirements of structural strength and light weight, and reduces carbon emission.

Description

Preparation method of low-energy aluminum hub for promoting carbon neutralization, hub and production line

Technical Field

The invention relates to the technical field of manufacturing of vehicle hubs, in particular to a low-energy aluminum hub preparation method, a hub and a production line for promoting carbon neutralization.

Background

The aluminum and aluminum alloy materials have a series of characteristics of strong plasticity, high strength, light weight, thin thickness, corrosion resistance, good welding performance, good processing and forming performance and the like, and become one of the materials with wide application and most economical and applicable; and new energy automobiles and light weight indexes push the aluminum requirement: the vehicle weight and the carbon dioxide emission have a relatively direct relation, the carbon dioxide emission can be reduced by about 5 g/km every 100 kg of the vehicle weight, meanwhile, the power consumption can be reduced by 5.5% every 10% of the vehicle weight, and the endurance mileage is increased by 5.5%, so that the weight-reducing vehicle body has very important significance for energy conservation and consumption reduction.

The aluminum alloy wheel hub thoroughly replaces a steel wheel on a passenger car, and along with the light-weighted promotion of the car, the forged aluminum wheel hub with higher strength and better light-weighted effect gradually replaces the existing cast aluminum wheel hub, so that the further light-weighted car is realized. At present, the production mode of the aluminum alloy hub in the market mainly comprises gravity casting, low-pressure casting and conventional forging, wherein the low-pressure casting needs to be subjected to smelting, low-pressure casting, heat treatment and other procedures, the gravity casting needs to be subjected to smelting, gravity casting, heat treatment and other procedures, and the conventional forging needs to be subjected to sawing, heating, forging, spinning, heat treatment and other procedures; however, gravity casting and low-pressure casting can cause the problems of loose internal structure, low strength and heavy weight of the aluminum hub, while the conventional forged aluminum hub has high strength, but long production flow, high energy consumption, high cost and low comprehensive benefit; in addition, in the traditional production mode, aluminum materials are firstly processed into aluminum bars through smelting, casting, homogenizing heat treatment, sawing and other working procedures, then the aluminum bars are forged, the working procedures are complex, and the energy consumption is high and is excessively wasted.

Therefore, a low-energy aluminum hub preparation method, a hub and a production line for promoting carbon neutralization are needed, the structural compactness of the hub can be improved, the structural strength is improved, the light weight degree is high, the production process is short, the efficiency is high, and meanwhile, energy conservation and emission reduction can be achieved, and carbon emission can be reduced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a preparation method of a low-energy aluminum hub, a hub and a production line for promoting carbon neutralization, which can improve the compactness of the hub structure, the structural strength, the light weight degree, the short production flow and the high efficiency, and simultaneously can also give consideration to energy conservation and emission reduction and reduce carbon emission. The technical scheme is as follows:

in one aspect, the invention provides a method for preparing a low-energy aluminum hub for promoting carbon neutralization, comprising the following steps:

smelting an aluminum ingot: smelting an aluminum ingot into alloy aluminum water;

high-pressure casting: transferring the alloy molten aluminum to a hub casting mold cavity, and pressing the alloy molten aluminum into a casting blank under a first high pressure and cooling the casting blank to a first preset temperature;

precision forging: and forging and forming the casting blank at a second high pressure and a second preset temperature for one time to form the hub.

Further, the aluminum ingot smelting includes:

adding the aluminum ingot into a smelting furnace, and adding alloy elements;

and smelting at the smelting temperature of 730-800 ℃ until the aluminum ingot becomes liquid, thereby obtaining the alloy aluminum water.

Further, after the adding the aluminum ingot to the melting furnace and adding the alloying element, the method further comprises:

refining: adding a refining agent and argon, and refining at a refining temperature;

and after refining, skimming slag to obtain the alloy molten aluminum.

Further, the refining temperature is 730-800 ℃.

Further, the alloy aluminum water comprises the following components in percentage by mass: 6.5 to 7.5 percent of silicon, 0.25 to 0.45 percent of magnesium, 0 to 0.90 percent of iron, 0 to 1.5 percent of impurity and the balance of aluminum.

Further, the alloy aluminum water comprises the following components in percentage by mass: copper 0.15-0.4%, manganese 0.15%, magnesium 0.8-1.2%, zinc 0.25%, chromium 0.04-0.35%, titanium 0.15%, silicon 0.4-0.8%, iron 0-0.7%, and the balance being aluminum.

Further, the casting pressure of the first high pressure is 200-1000 tons.

Further, the first high pressure duration dwell time is 10 to 100s.

Further, the first preset temperature is 400-550 ℃.

Further, the precision forging further includes:

transferring the casting blank into a hub forging die, and determining the recrystallization condition of the casting blank;

setting the second high pressure and the second preset temperature according to the recrystallization conditions, and placing the hub forging die at the second high pressure and the second preset temperature;

the casting blank dynamically flows in the hub forging die to perform dynamic recrystallization;

and (5) uniformly cooling to obtain the hub.

Further, the second preset temperature is 400-550 ℃.

Further, the forging pressure of the second high pressure is not less than 8000 tons.

On the other hand, the invention also provides a hub which is prepared by the preparation method of the low-energy aluminum hub for promoting carbon neutralization, and the hub is subjected to heat treatment and rapid surface precision machining polishing treatment to prepare a hub finished product.

On the other hand, the invention also provides a production line for preparing the low-energy aluminum wheel hub for promoting the carbon neutralization, which is used for realizing the preparation method of the low-energy aluminum wheel hub for promoting the carbon neutralization, and equipment in the production line at least comprises an aluminum ingot melting furnace, a high-pressure casting machine and a precise one-step forming forging press.

Further, the production line further comprises a controller which is respectively connected with the aluminum ingot melting furnace, the high-pressure casting machine and the precise one-step forming forging press and controls operation.

Further, the controller is provided with

The energy consumption module is used for connecting and recording the historical energy consumption of each device in the production line under different process parameters;

the process parameter module is used for connecting and recording process parameters used by the equipment in the production line;

the product module is used for recording the shape parameters and the weight parameters of the hub products;

and the carbon neutralization optimization module is used for optimizing and outputting a process parameter scheme with the lowest energy consumption according to the historical energy consumption of the product module, the process parameter module and the energy consumption module.

The implementation of the invention has the following beneficial effects:

1. according to the invention, high-temperature forging and pressing are performed on the basis of obtaining a formed casting blank, so that the dynamic recrystallization of an aluminum alloy structure is realized, the defects of loosening, segregation, shrinkage cavity and the like caused by pure casting are eliminated, the product structure is compact, the strength and extensibility of the hub are improved, the mechanical performance of the hub is improved, the weight reduction of the hub by 20% -30% is realized, and further the reduction of carbon emission is realized.

2. The production process is greatly simplified by adopting one-time casting and one-time precision forging, the production period is shortened, and the production efficiency and the comprehensive benefit are improved.

3. According to the invention, aluminum ingots or aluminum water is used as a raw material, the original aluminum bar raw material is replaced, the working procedures of smelting, casting, homogenizing heat treatment, sawing and the like of the aluminum bar raw material in the traditional forging process are omitted, a large amount of energy consumption and aluminum loss caused by repeated heating are avoided, the production flow is greatly simplified, the production efficiency is improved, and meanwhile, the energy consumption is saved.

4. The production line has the advantages of less equipment quantity and simple process flow, and can realize high-efficiency production; meanwhile, the controller can control the production line, continuously optimize and promote carbon neutralization, furthest reduce energy consumption and have good energy-saving and environment-friendly effects.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the following description will briefly explain the drawings used in the embodiments, in which like elements are denoted by like reference numerals. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a logic structure diagram of a method for preparing a low energy aluminum hub to facilitate carbon neutralization according to an embodiment of the present invention;

FIG. 2 is a logic structure diagram of an aluminum ingot smelting method according to an embodiment of the present invention;

FIG. 3 is a logic structure diagram of another aluminum ingot smelting method according to an embodiment of the present invention;

FIG. 4 is a logic block diagram of a precision forging method according to an embodiment of the present invention;

FIG. 5 is a diagram comparing a conventional manufacturing process with a method for manufacturing a low energy aluminum hub for facilitating carbon neutralization according to an embodiment of the present invention.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and thus should not be construed as limiting the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that the terms "first," "second," and the like in the description and the claims and drawings of the present invention are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the invention may be practiced otherwise than as specifically described or illustrated. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Examples

The following describes the technical scheme of the embodiment of the present invention in detail, and referring to fig. 1 of the specification, the method includes:

s101, aluminum ingot smelting: and smelting the aluminum ingot into alloy molten aluminum.

Specifically, the aluminum ingot can be a conventional A00 aluminum ingot, and ZL101 aluminum alloy or 6061 aluminum alloy can be prepared according to national standard; wherein the ZL101 aluminum alloy comprises the following components in percentage by mass: 6.5 to 7.5 percent of silicon, 0.25 to 0.45 percent of magnesium, 0 to 0.90 percent of iron, 0 to 1.5 percent of impurity and the balance of aluminum; the aluminum alloy has excellent casting performance, good fluidity, small wire shrinkage, low hot cracking tendency, high air tightness, and small tendency although pores and shrinkage cavities are generated.

And 6061 aluminum alloy comprises the following components in percentage by mass: 0.15 to 0.4 percent of copper, 0.15 percent of manganese, 0.8 to 1.2 percent of magnesium, 0.25 percent of zinc, 0.04 to 0.35 percent of chromium, 0.15 percent of titanium, 0.4 to 0.8 percent of silicon, 0 to 0.7 percent of iron and the balance of aluminum; the titanium element can refine grains and control recrystallization structure, thereby being beneficial to eliminating shrinkage cavities in casting blank structures in the follow-up precision forging process and greatly improving the mechanical property of the hub.

In addition, the aluminum ingot is directly smelted into the alloy aluminum water to replace the original aluminum bar as the raw material, so that the complex production procedures of the traditional aluminum bar are saved, at least the procedures of smelting, casting, homogenizing heat treatment, sawing and the like and a large amount of energy consumption and aluminum loss generated by the procedures are saved, the production process is simplified, the production period is shortened, the production cost is reduced in a stealth way, and the comprehensive benefit is high.

S103, high-pressure casting: transferring the alloy aluminum water to a hub casting mold cavity, and pressing the alloy aluminum water into a casting blank under a first high pressure and cooling the casting blank to a first preset temperature.

Specifically, in the process of pressurizing aluminum water in a hub casting mold by using a press, the pressure provided by the press is a first high pressure, and the casting pressure of the first high pressure is 200-1000 tons; in the whole high-pressure casting process, the first high pressure can be selectively maintained at a preset pressure value or a preset casting pressure interval, the casting pressure is maintained within the range of the preset casting pressure interval, the casting quality is ensured, and meanwhile, the flexibility of a casting process is ensured.

Specifically, in the high-pressure casting process, the pressure is kept for 10-100 s under the condition of a first high pressure, so that the internal structure of the obtained casting blank is prevented from generating more pores, and the quality of a final hub product is not facilitated; specifically, the temperature of the cooled casting blank, namely the first preset temperature is 400-550 ℃, and the first preset temperature is not less than the second preset temperature of the follow-up precision forging step, so that the waste of aluminum alloy and the increase of energy consumption caused by adding an additional heating process are avoided.

The step S103 is a high-pressure casting step, when the aluminum water is transferred to the hub casting mold, the inflow pressure and speed can be controlled, the high-temperature aluminum water is crystallized and solidified under the pressure, the cooling speed of the aluminum water in a cavity of the hub casting mold is higher, the structure of a casting blank can be compact to a certain extent, the mechanical property of the casting blank is improved, and the metal utilization rate is high; in addition, the high-pressure casting step has simple working procedures, high production efficiency, relatively low requirements on production equipment, low equipment investment and low production cost, and can be suitable for medium and small-scale production; the problems of poor internal quality, serious shrinkage porosity and more impurities of the casting blank caused in the high-pressure casting step can be solved by subsequent further precision forging, and the casting blank obtained in the step can be forged only once, so that the production efficiency is high, and the quality of the hub can be ensured.

S105, precision forging: and forging and forming the casting blank at a second high pressure and a second preset temperature for one time to form the hub.

The casting blank is taken out of the cavity of the hub casting die, the precision forging and pressing under high pressure are carried out, the performances of strength, corrosion resistance and the like of the hub can be improved, the precision forging accuracy is high, and the method is particularly suitable for production procedures with high requirements on the product size; in addition, the precision forging can enable the grain flow direction of the aluminum hub to be consistent with the stress direction, further improve the mechanical properties including strength, toughness and fatigue strength, particularly the elongation can reach 12-17%, and can well absorb the vibration and stress of a road; in addition, the hub obtained by the preparation method provided by the invention has no surface air holes, can have good surface treatment capacity, can ensure uniform and consistent coating, is firmly combined, has good color and has good appearance performance.

Specifically, as shown in fig. 2 of the specification, in step S101, the aluminum ingot smelting includes:

s202, adding the aluminum ingot into a smelting furnace, and adding alloy elements.

S204, smelting at the smelting temperature of 730-800 ℃ until the aluminum ingot becomes liquid, and obtaining the alloy aluminum water.

Wherein, the smelting temperature is maintained at 730-800 ℃, and the molten aluminum required by the steps S101-S105 can be obtained through the smelting process; in addition, according to the description and shown in fig. 5, even if aluminum ingots are used as raw materials, aluminum water can be obtained by smelting in one step, and the aluminum ingots are obtained by smelting, casting, homogenizing and heat treatment, and then sawing, heating, forging, spinning, heat treatment and other processes are carried out on the aluminum ingots, so that the hub can be obtained, the production process is greatly simplified, the production period is shortened, the cost required by corresponding equipment can be saved by simplifying the process, and the comprehensive benefit is improved.

Specifically, as shown in fig. 3 of the specification, after step S202, that is, after the aluminum ingot is added to the melting furnace and the alloy element is added, the method may further include:

s301, refining: adding a refining agent and argon, and refining at a refining temperature;

s303, after refining, alloy molten aluminum is obtained through slag skimming.

Specifically, the refining temperature is 730-800 ℃, so that the temperature is always kept at a stable level in the whole aluminum ingot smelting process, and the influence of sudden temperature rising and falling on the product quality is avoided.

Specifically, as shown in fig. 4 of the specification, in step S105, the precision forging further includes:

s402, transferring the casting blank into a hub forging die, and determining the recrystallization condition of the casting blank.

S404, setting the second high pressure and the second preset temperature according to the recrystallization conditions, and placing the hub forging die at the second high pressure and the second preset temperature.

S406, dynamically flowing the casting blank in the hub forging die to perform dynamic recrystallization.

And S408, uniformly cooling to obtain the hub.

Specifically, the second preset temperature is 400-550 ℃, and the temperature of the cooled casting blank, namely the first preset temperature, is not lower than the second preset temperature; the forging pressure of the second high pressure is not less than 8000 tons, namely, in the recrystallization temperature range of the aluminum alloy, the casting blank flows in a hub forging die for forming through large-pressure forging, and the dynamic flow of the aluminum alloy enables the internal structure to be dynamically recrystallized, so that the defect of casting structure is completely eliminated, loose and air hole compaction in the casting blank structure can be ensured, coarse casting structure (dendritic crystal grains) is crushed into fine crystal grains, and a fiber structure is formed, and when the fiber structure is reasonably distributed along the contour of the part, the mechanical property of the part can be improved; therefore, the obtained hub has high strength and can bear larger impact load; under the condition of bearing impact load of the same size, the size of the hub part forged by the precision forging process can be reduced, namely, the raw materials and the corresponding cost of aluminum water are saved, and meanwhile, the weight of the hub can be further reduced due to the reduction of the size, so that the carbon emission is reduced, and the aims of energy conservation and emission reduction are fulfilled.

The preparation method for the hub provided by the embodiment can enable the hub to have a compact internal structure which is only possessed by a forged product, improves the strength and the elongation of an aluminum product, improves the mechanical property, enables the mechanical property to be improved by more than 50% on the basis of a cast structure, ensures light weight and attractive appearance, and can reduce the weight by 20-30% compared with the traditional cast aluminum hub; more importantly, the production process is short, only one forging is needed during forging, compared with the traditional casting of the aluminum hub, the production period of 5-8 min/piece and the production period of 1.5 min/piece during conventional forging, the production period of the method in the embodiment is only 1 min/piece even if the method is used for preparing complex pieces, the production efficiency is greatly improved, and the comprehensive cost is reduced.

The invention also provides a hub which is prepared by using the preparation method of the low-energy aluminum hub for promoting carbon neutralization, and then the hub can be prepared into a hub finished product after heat treatment and rapid surface precision machining polishing treatment.

The invention also provides a production line for preparing the low-energy aluminum wheel hub for promoting the carbon neutralization, which is used for realizing the preparation method of the low-energy aluminum wheel hub for promoting the carbon neutralization.

In one possible embodiment of the present disclosure, the apparatus in the low energy aluminum hub preparation line for promoting carbon neutralization may further include a controller that connects the aluminum ingot melting furnace, the high pressure casting machine, and the precision one-shot forming forging press, respectively, and controls the respective apparatuses to operate normally.

Specifically, in one possible embodiment of the present specification, the controller may further be provided with:

the energy consumption module is used for connecting and recording the historical energy consumption of each device in the production line under different process parameters;

the process parameter module is used for connecting and recording process parameters used by each device in the production line;

the product module is used for recording the shape parameters and the weight parameters of each hub product;

and the carbon neutralization optimization module is used for optimizing and outputting a process parameter scheme with the lowest energy consumption according to the historical energy consumption of the product module, the process parameter module and the energy consumption module.

The controller comprises a processor and a memory, wherein at least one instruction or at least one section of program is stored in the memory, and the at least one instruction or the at least one section of program is loaded and executed by the processor to realize the low-energy aluminum hub preparation method for promoting carbon neutralization.

The processor (or CPU (Central Processing Unit, central processing unit)) is a core component of the production line, and the functions of the processor are mainly to explain the memory instruction and process the data fed back by each module such as an energy consumption module, a process parameter module, a product module, a carbon neutralization optimization module and the like; the processor is generally divided into an arithmetic logic unit for performing related logic operations (e.g., shift operations, logic operations, fixed point or floating point arithmetic operations, and address operations), and a register unit for temporarily storing instructions, data, and addresses.

The memory is a memory device that can be used to store software programs and the various modules described above, and the processor executes the software programs and modules stored in the memory to perform various functional applications and data processing. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs required for functions, and the like; the storage data area may store data created according to the use of the respective devices in the production line, etc.; accordingly, the memory may also include a memory controller to provide access to the memory by the processor.

According to the embodiment, the casting process is combined with precision forging, high-temperature forging is performed on the basis of obtaining a formed casting blank, dynamic recrystallization of an aluminum alloy structure is realized, the defects of loosening, segregation, shrinkage cavity and the like caused by pure casting are eliminated, the product structure is compact, the strength and extensibility of the hub are improved, the mechanical property of the hub is improved, the weight of the hub is reduced by 20% -30%, and further the carbon emission is reduced; meanwhile, the preparation method only adopts one-time casting and one-time precision forging, so that the production process is greatly simplified, the production period is shortened, and the production efficiency and the comprehensive benefit are improved; according to the description and the figure 5, compared with the traditional process, the aluminum ingot or aluminum water is adopted as the raw material, the original aluminum bar raw material is replaced, the working procedures of smelting, casting, homogenizing heat treatment, sawing and the like of the aluminum bar raw material in the traditional forging process are omitted, a large amount of energy consumption and aluminum loss caused by repeated heating are avoided, the production flow is greatly simplified, the production efficiency is improved, and meanwhile, the energy consumption is saved.

While the invention has been described with respect to certain embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended to cover the invention as defined by the appended claims.

Claims (16)

1. The preparation method of the low-energy aluminum hub for promoting the carbon neutralization is characterized by comprising the following steps of:

smelting an aluminum ingot: smelting an aluminum ingot into alloy aluminum water;

high-pressure casting: transferring the alloy molten aluminum to a hub casting mold cavity, and pressing the alloy molten aluminum into a casting blank under a first high pressure and cooling the casting blank to a first preset temperature;

precision forging: and forging and forming the casting blank at a second high pressure and a second preset temperature for one time to form the hub.

2. The method for preparing a low energy aluminum hub for promoting carbon neutralization according to claim 1, wherein the aluminum ingot smelting comprises:

adding the aluminum ingot into a smelting furnace, and adding alloy elements;

and smelting at the smelting temperature of 730-800 ℃ until the aluminum ingot becomes liquid, thereby obtaining the alloy aluminum water.

3. A method of producing a low energy aluminum wheel hub for promoting carbon neutralization according to claim 2, further comprising, after said adding the aluminum ingot to a melting furnace and adding an alloying element:

refining: adding a refining agent and argon, and refining at a refining temperature;

and after refining, skimming slag to obtain the alloy molten aluminum.

4. A method of manufacturing a low energy aluminum hub to facilitate carbon neutralization as recited in claim 3, wherein the refining temperature is 730-800 ℃.

5. The method for preparing the low-energy aluminum hub for promoting carbon neutralization according to claim 2, wherein the aluminum alloy water comprises the following components in percentage by mass: 6.5 to 7.5 percent of silicon, 0.25 to 0.45 percent of magnesium, 0 to 0.90 percent of iron, 0 to 1.5 percent of impurity and the balance of aluminum.

6. The method for preparing the low-energy aluminum hub for promoting carbon neutralization according to claim 2, wherein the aluminum alloy water comprises the following components in percentage by mass: copper 0.15-0.4%, manganese 0.15%, magnesium 0.8-1.2%, zinc 0.25%, chromium 0.04-0.35%, titanium 0.15%, silicon 0.4-0.8%, iron 0-0.7%, and the balance being aluminum.

7. The method for manufacturing a low energy aluminum wheel hub to facilitate carbon neutralization of claim 1, wherein said first high pressure casting pressure is 200-1000 tons.

8. The method for manufacturing a low energy aluminum hub to facilitate carbon neutralization of claim 1, wherein said first high pressure duration dwell time is between 10 and 100 seconds.

9. The method for preparing a low energy aluminum hub for promoting carbon neutralization according to claim 1, wherein the first preset temperature is 400-550 ℃.

10. The method for manufacturing a low energy aluminum hub for promoting carbon neutralization of claim 1, wherein said precision forging further comprises:

transferring the casting blank into a hub forging die, and determining the recrystallization condition of the casting blank;

setting the second high pressure and the second preset temperature according to the recrystallization conditions, and placing the hub forging die at the second high pressure and the second preset temperature;

the casting blank dynamically flows in the hub forging die to perform dynamic recrystallization;

and (5) uniformly cooling to obtain the hub.

11. The method for manufacturing a low energy aluminum hub for promoting carbon neutralization according to claim 1, wherein the second preset temperature is 400-550 ℃.

12. A method of manufacturing a low energy aluminum hub to facilitate carbon neutralization as recited in claim 1, wherein said second high pressure forging pressure is not less than 8000 tons.

13. A hub prepared by the method for preparing the low-energy aluminum hub for promoting carbon neutralization according to any one of claims 1-12, wherein the hub is subjected to heat treatment and rapid surface precision machining polishing treatment to prepare a hub finished product.

14. A production line for preparing a low-energy aluminum hub for promoting carbon neutralization, which is characterized by comprising an aluminum ingot melting furnace, a high-pressure casting machine and a precise one-step forming forging press for realizing the low-energy aluminum hub preparation method for promoting carbon neutralization according to claims 1-12.

15. The low energy aluminum hub production line for facilitating carbon neutralization of claim 14, further comprising a controller connecting the aluminum ingot melting furnace, the high pressure casting machine, and the precision one-shot forming forging press, respectively, and controlling operation.

16. The low energy aluminum hub preparation production line for promoting carbon neutralization as recited in claim 15, wherein the controller is provided with

The energy consumption module is used for connecting and recording the historical energy consumption of each device in the production line under different process parameters;

the process parameter module is used for connecting and recording process parameters used by the equipment in the production line;

the product module is used for recording the shape parameters and the weight parameters of the hub products;

and the carbon neutralization optimization module is used for optimizing and outputting a process parameter scheme with the lowest energy consumption according to the historical energy consumption of the product module, the process parameter module and the energy consumption module.