Preparation method for copper-aluminum composite terminal post sheet material

Abstract

A preparation method for a copper-aluminum composite terminal post sheet material. The preparation method comprises: heating aluminum ingots to 700°C-800°C for melting, and allowing an aluminum ingot liquid at 700°C-800°C to stand still for 0-30 minutes to obtain an aluminum solution; roughening and cleaning a copper strip to complete a surface pretreatment of the copper strip; continuously casting an aluminum strip by using the aluminum solution which has been left to stand; forming terminal post aluminum bosses by means of forming rollers, increasing the copper-aluminum bonding strength, and performing side discharging of aluminum waste; performing mold pressing at normal temperature for the forming of fine features of the rolled bosses and the shaping of large bosses; and cutting terminal posts, and determining whether battery terminal post products meet the standard. Thus, the preparation process and apparatus of a copper-aluminum composite material for terminal posts are improved, and formed battery terminal posts are not of a conventional copper roll shape. In addition, terminal-post aluminum copper formed by warm rolling is tested to distinguish the terminal-post aluminum copper formed by warm rolling that meets the standard.

Description

Preparation method of copper-aluminum composite pole plate TECHNICAL FIELD

[0001] The present application belongs to the technical field of new energy, and particularly relates to a preparation method of a copper-aluminum composite pole plate. BACKGROUND

[0002] The copper-aluminum composite pole plate is a composite material combining the excellent properties of copper and aluminum. Copper has good electrical conductivity, corrosion resistance, oxidation resistance and high heat capacity, while aluminum has the characteristics of light specific gravity and low density. Therefore, in the process of preparing the copper-aluminum composite pole plate, the key technology lies in how to effectively composite copper and aluminum while maintaining their excellent properties.

[0003] A Chinese patent application with the publication number CN109616607B discloses a forming method of a copper-aluminum composite pole, which comprises: blanking copper bar material and aluminum bar material to obtain copper bars and aluminum bars, respectively; respectively upsetting the copper bars and the aluminum bars, and blanking to obtain copper conductive pieces and aluminum conductive pieces, respectively; butting the bottom of the copper conductive pieces and the aluminum conductive pieces, and welding them into one body to obtain a copper-aluminum composite pole; and cleaning and upsetting the copper-aluminum composite pole to remove the material.

[0004] In the prior art, the copper conductive pieces and the aluminum conductive pieces obtained by re-upsetting flow uniformly along the copper positioning holes and the aluminum positioning holes when the material is removed, and the structure of the copper conductive pieces and the aluminum conductive pieces is stable. However, the copper conductive pieces and the aluminum conductive pieces are not specifically analyzed, the influence on the production of the copper-aluminum composite pole is not obtained, and the performance of the copper-aluminum composite pole is not analyzed to determine whether the obtained copper-aluminum composite pole meets the standard.

[0005] Therefore, the present application provides a preparation method of a copper-aluminum composite pole plate. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: a preparation method of a copper-aluminum composite pole post plate, comprising the following steps: in step one, an aluminum solution is obtained by allowing an aluminum ingot liquid to stand for 0-30 minutes at 700-800 DEG C, and the quality of the aluminum solution is evaluated; in step two, the copper strip is roughened and cleaned to complete the pretreatment of the surface of the copper strip; in step three, the aluminum solution after standing is continuously cast into an aluminum strip; in step four, the pole aluminum boss is formed by a forming roller to increase the copper-aluminum bonding force and side-discharge aluminum waste; in step five, the boss is formed and the large boss is shaped at room temperature; in step six, the pole post is cut, and it is determined whether the product of the battery pole post meets the standard; the forming warm rolling pole aluminum copper standard determination value Q is compared with the preset forming warm rolling pole aluminum copper standard determination threshold value, and the comparison process is as follows: if the forming warm rolling pole aluminum copper standard determination value Q is greater than or equal to the preset forming warm rolling pole aluminum copper standard determination threshold value, the forming warm rolling pole aluminum copper meets the standard; if the forming warm rolling pole aluminum copper standard determination value Q is less than the preset forming warm rolling pole aluminum copper standard determination threshold value, the forming warm rolling pole aluminum copper does not meet the standard.

[0008] As a further technical scheme of the present application, in step one, the aluminum solution is allowed to stand for 0-30 minutes at 700-800 DEG C to obtain an aluminum solution, and the quality of the aluminum solution is evaluated; A1, the flowability of the aluminum solution after standing is detected to obtain an aluminum solution flow representative value; A2, the gas content of the aluminum solution after standing is detected to obtain an aluminum solution gas content representative value; A3, based on the aluminum solution flow representative value E and the aluminum solution gas content representative value R, the aluminum solution quality determination value is obtained, and the quality of the aluminum solution is evaluated.

[0009] As a further technical scheme of the present application, in A1, the flowability of the aluminum solution after standing is determined by detecting the viscosity of the aluminum solution, and the specific process is as follows: A101, a part of the aluminum solution is taken out and divided into several groups of equal parts of the aluminum solution, and the viscosity representative value of the several groups of equal parts of the aluminum solution is obtained; A102, based on the viscosity representative value of the several groups of equal parts of the aluminum solution, the average value is obtained by summation, and the average value is taken as the solution viscosity determination value; A103, based on the solution viscosity determination value of the extracted part, the aluminum solution flow representative value E is obtained by the formula: E=M x a, M represents the solution viscosity determination value, and a represents a preset proportion coefficient.

[0010] As a further technical solution of the present application, in A2, the gas content of the aluminum solution is determined by detecting the density deviation value of the aluminum solution after standing, and the specific process is as follows: A201, obtaining the density of the aluminum solution after standing; A202, subtracting the density of the aluminum solution after standing from the standard density of the aluminum solution, and taking the difference as the actual density deviation value of the aluminum solution; A203, based on the actual density deviation value of the aluminum solution and the standard density of the aluminum solution, taking the ratio as the representative value of the gas content of the aluminum solution; the formula is: The representative value R of the gas content of the aluminum solution is obtained, F represents the standard density of the aluminum solution, U represents the density of the aluminum solution after standing, and β represents the preset proportion coefficient.

[0011] As a further technical solution of the present application, in A3, the aluminum solution flow representative value E and the aluminum solution gas content representative value R are processed, and the specific process is as follows: A301, based on the aluminum solution flow representative value E and the aluminum solution gas content representative value R, the formula is: The quality determination value W of the aluminum solution is obtained, and ∈ represents the preset proportion coefficient; A302, based on the quality determination value W of the aluminum solution, the quality determination value W of the aluminum solution is compared with the preset aluminum solution quality determination threshold value, and the specific comparison process is as follows: if the quality determination value W of the aluminum solution is greater than or equal to the preset aluminum solution quality determination threshold value, it is determined that the quality of the aluminum solution is high; if the quality determination value W of the aluminum solution is less than the preset aluminum solution quality determination threshold value, it is determined that the quality of the aluminum solution is low.

[0012] As a further technical solution of the present application, in step two, the copper strip after the roughening treatment and cleaning is processed to obtain the flatness value of the copper strip surface, and the specific process is as follows: B1, detecting the copper strip surface after the roughening treatment and cleaning to obtain the flatness value of different positions of the copper strip surface; B2, based on the flatness value of different positions of the copper strip surface, the mode of the flatness value of different positions of the copper strip surface is obtained; B3, based on the mode of the flatness value of different positions of the copper strip surface, the difference between the flatness value of different positions of the copper strip surface and the mode of the flatness value is obtained, and the difference is taken as the flatness deviation value of different positions of the copper strip surface; B4, based on the flatness deviation value of different positions of the copper strip surface, the average value is obtained by summing, and the average value is taken as the flatness deviation coefficient of different positions of the copper strip surface; B5, the formula is used to obtain the representative value K of the flatness of the copper strip surface, T represents the mode of the flatness value of different positions of the copper strip surface, and ω represents the flatness deviation coefficient of different positions of the copper strip surface.

[0013] As a further technical solution of the present application, in step three, the surface flatness of the aluminum strip after continuous casting is detected to obtain the surface flatness representative value of the aluminum strip after continuous casting, and the specific processing process is as follows: C1, the surface of the aluminum strip after continuous casting is detected to obtain the flatness value of different positions of the aluminum strip surface; C2, based on the flatness value of different positions of the aluminum strip surface, the flatness value of different positions of the aluminum strip surface is obtained; C3, based on the flatness value of different positions of the aluminum strip surface, the flatness value of different positions of the aluminum strip surface is summed and averaged, and the average value is taken as the flatness representative value L of different positions of the aluminum strip surface.

[0014] As a further technical solution of the present application, in step four, stress bearing detection is performed on the pole column aluminum copper of the forming warm rolling roller to obtain a stress bearing representative value; D1, stress bearing detection is performed on different positions of the pole column aluminum copper of the forming warm rolling roller to obtain stress bearing values at different positions; D2, based on the stress bearing values at different positions of the pole column aluminum copper of the forming warm rolling roller, the sum is summed to obtain a square difference value, and the square difference value is taken as the stress bearing representative value of the pole column aluminum copper of the forming warm rolling roller.

[0015] As a further technical solution of the present application, in step six, based on the copper strip surface flatness representative value K, the aluminum strip surface different position flatness representative value L and the forming warm rolling roller pole column aluminum copper stress bearing representative value, the specific processing process is as follows: S1, based on the copper strip surface flatness representative value K and the aluminum strip surface different position flatness representative value L, the resistance representative value of the forming warm rolling roller pole column aluminum copper is obtained; Specifically, V=lg(K+L)×h obtains the resistance representative value V of the forming warm rolling roller pole column aluminum copper, and h represents a preset proportion coefficient; S2, based on the resistance representative value V of the forming warm rolling roller pole column aluminum copper and the stress bearing representative value of the forming warm rolling roller pole column aluminum copper, the standard judgment value of the forming warm rolling roller pole column aluminum copper is obtained.

[0016] As a further technical solution of the present application, in S2, the formula: is used to obtain the standard judgment value Q of the forming warm rolling roller pole column aluminum copper, P represents the stress bearing representative value of the forming warm rolling roller pole column aluminum copper, and θ represents a preset proportion coefficient; Specifically, the standard judgment value Q of the forming warm rolling roller pole column aluminum copper is compared with a preset standard judgment threshold value of the forming warm rolling roller pole column aluminum copper, and the comparison process is as follows: if the standard judgment value Q of the forming warm rolling roller pole column aluminum copper is greater than or equal to the preset standard judgment threshold value of the forming warm rolling roller pole column aluminum copper, the forming warm rolling roller pole column aluminum copper meets the standard; if the standard judgment value Q of the forming warm rolling roller pole column aluminum copper is less than the preset standard judgment threshold value of the forming warm rolling roller pole column aluminum copper, the forming warm rolling roller pole column aluminum copper does not meet the standard.

[0017] The beneficial effects of the present application are as follows: 1. The preparation method of the copper-aluminum composite pole plate material, the aluminum ingot is heated to 700-800 DEG C for smelting, and the 700-800 DEG C aluminum ingot liquid is allowed to stand for 0-30 minutes to obtain an aluminum solution, the copper strip is roughened and cleaned, the surface of the copper strip is pretreated, the aluminum solution after standing is continuously cast with an aluminum strip, the pole aluminum boss is formed through a forming roller, the copper-aluminum bonding force is increased, the aluminum waste is discharged laterally, the molding is carried out at room temperature, the forming of the small features of the boss and the shaping of the large boss are carried out, the pole is cut, and it is determined whether the product of the battery pole meets the standard, so that the preparation process and equipment of the copper-aluminum composite material for the pole are improved, and the formed battery pole is not a traditional copper roll type.

[0018] 2. The preparation method of the copper-aluminum composite pole plate material, the resistance representative value of the forming warm roller pole aluminum copper is obtained based on the surface flatness representative value K of the copper strip and the surface flatness representative value L of the aluminum strip at different positions, the forming warm roller pole aluminum copper standard judgment value is obtained based on the resistance representative value V of the forming warm roller pole aluminum copper and the stress bearing representative value of the forming warm roller pole aluminum copper, the forming warm roller pole aluminum copper standard judgment value Q is compared with the preset forming warm roller pole aluminum copper standard judgment threshold value, if the forming warm roller pole aluminum copper standard judgment value Q is greater than or equal to the preset forming warm roller pole aluminum copper standard judgment threshold value, the forming warm roller pole aluminum copper meets the standard, otherwise, it does not meet the standard, so that the pole aluminum copper formed by the warm roller is detected, the warm roller formed pole aluminum copper meeting the standard is distinguished, and the warm roller formed pole aluminum copper not meeting the standard is used as the basis for further optimizing the manufacturing scheme. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below in conjunction with the drawings.

[0020] Fig. 1 is a flowchart of an embodiment of the present application; Fig. 2 is a flowchart of an embodiment of the present application for detecting the surface flatness of a copper sheet; Fig. 3 is a flowchart of an embodiment of the present application for detecting the surface flatness of an aluminum sheet; Fig. 4 is a flowchart of an embodiment of the present application for determining whether the product of the battery pole meets the standard; and Fig. 5 is a flowchart of a preparation method of a copper-aluminum composite pole plate material of the present application. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application will be further described below in conjunction with specific embodiments.

[0022] Embodiment one, as shown in FIG. 1-3, a preparation method of a copper-aluminum composite pole plate material according to the embodiment of the present application, comprising the following steps: Step one, heat the aluminum ingot to 700°C for smelting, and let the 700°C aluminum ingot liquid stand for 5 minutes to obtain an aluminum solution; In step one, the aluminum solution is obtained by letting the 700°C aluminum ingot liquid stand for 5 minutes, and the quality of the aluminum solution is evaluated; A1, detect the flowability of the aluminum solution after standing, and obtain a flow representative value of the aluminum solution, the specific process is as follows: A101, extract part of the aluminum solution into several groups of equal parts of the aluminum solution, and obtain the viscosity representative value of the several groups of equal parts of the aluminum solution; A102, based on the viscosity representative value of the several groups of equal parts of the aluminum solution, sum and average, and take the average value as the solution viscosity judgment value; A103, based on the solution viscosity judgment value of the extracted part, process it, and obtain the aluminum solution flow representative value E through the formula: E=M x a, M represents the solution viscosity judgment value, and a represents a preset proportion coefficient; A2, detect the gas content of the aluminum solution after standing, and obtain a gas content representative value of the aluminum solution, the specific process is as follows: A201, obtain the density of the aluminum solution after standing; A202, subtract the density of the aluminum solution after standing from the standard density of the aluminum solution, and take the difference as the density deviation value of the actual aluminum solution; A203, based on the ratio of the density deviation value of the actual aluminum solution to the standard density of the aluminum solution, take the ratio as the gas content representative value of the aluminum solution; Specifically, obtain the gas content representative value R of the aluminum solution through the formula: F represents the standard density of the aluminum solution, U represents the density of the aluminum solution after standing, and β represents a preset proportion coefficient; A3, based on the aluminum solution flow representative value E and the aluminum solution gas content representative value R, process it to obtain an aluminum solution quality judgment value, and evaluate the quality of the aluminum solution, the specific process is as follows: A301, based on the aluminum solution flow representative value E and the aluminum solution gas content representative value R, process it through the formula: The quality determination value W of the aluminum solution is obtained, and the quality determination value W of the aluminum solution is compared with a preset aluminum solution quality determination threshold value based on the quality determination value W of the aluminum solution, and the specific comparison process is as follows: if the quality determination value W of the aluminum solution is greater than or equal to the preset aluminum solution quality determination threshold value, it is determined that the quality of the aluminum solution is high; if the quality determination value W of the aluminum solution is less than the preset aluminum solution quality determination threshold value, it is determined that the quality of the aluminum solution is low; step two, the copper strip is subjected to roughening treatment and cleaning, and the surface of the copper strip is pretreated; in step two, the copper strip after roughening treatment and cleaning is treated, and the flatness value of the surface of the copper strip is obtained, and the specific process is as follows: B1, the surface of the copper strip after roughening treatment and cleaning is detected to obtain the flatness values of different positions of the surface of the copper strip; B2, the flatness values of different positions of the surface of the copper strip are screened based on the flatness values of different positions of the surface of the copper strip to obtain the mode of the flatness values of different positions of the surface of the copper strip; B3, the flatness values of different positions of the surface of the copper strip are subtracted from the mode of the flatness values of different positions of the surface of the copper strip, and the difference is taken as the flatness deviation value of different positions of the surface of the copper strip; B4, the flatness deviation values of different positions of the surface of the copper strip are summed and averaged based on the flatness deviation values of different positions of the surface of the copper strip, and the average value is taken as the flatness deviation coefficient of different positions of the surface of the copper strip; B5, the representative value K of the flatness of the surface of the copper strip is obtained through the formula: K=T x ω, T represents the mode of the flatness values of different positions of the surface of the copper strip, and ω represents the flatness deviation coefficient of different positions of the surface of the copper strip; step three, the aluminum strip is continuously cast after the aluminum solution is placed; in step three, the flatness of the surface of the aluminum strip after continuous casting is detected to obtain the representative value of the flatness of the surface of the aluminum strip after continuous casting, and the specific processing process is as follows: C1, the surface of the aluminum strip after continuous casting is detected to obtain the flatness values of different positions of the surface of the aluminum strip; C2, the flatness values of different positions of the surface of the aluminum strip are screened based on the flatness values of different positions of the surface of the aluminum strip to obtain the flatness values of different positions of the surface of the aluminum strip; C3, the flatness values of different positions of the surface of the aluminum strip are summed and averaged based on the flatness values of different positions of the surface of the aluminum strip, and the average value is taken as the representative value L of the flatness of different positions of the surface of the aluminum strip; specifically, the continuous casting speed is 200 mm / min, the casting width is 10 mm, and the casting thickness is 3 mm; the technical scheme of the embodiment of the application: the flatness values of different positions of the surface of the aluminum strip after continuous casting are detected and screened to obtain the flatness values of different positions of the surface of the aluminum strip, the flatness values of different positions of the surface of the aluminum strip are summed and averaged, and the average value is taken as the representative value L of the flatness of different positions of the surface of the aluminum strip, the representative value L of the flatness of different positions of the surface of the aluminum strip is used to represent the flatness of the surface of the aluminum strip, and the average value of the flatness of different positions is used as the representative value of the flatness of different positions of the surface of the aluminum strip, which can avoid abnormal fluctuations and errors in the flatness value data of different positions, and will not have a great influence on the flatness data of the surface of the aluminum strip;Step four, the pole aluminum boss forming is carried out through the forming roller, the copper-aluminum bonding force is increased, and the aluminum waste is discharged; Specifically, the roller includes cold rolling or warm rolling, and the warm rolling temperature is generally 300 DEG C, and the warm rolling can reduce the deformation amount of copper; As shown in Figure 4, in step four, stress bearing detection is carried out on the pole aluminum copper of the forming warm rolling roller, and a stress bearing representative value is obtained; D1, stress bearing detection is carried out on the pole aluminum copper of the forming warm rolling roller at different positions, and stress bearing values at different positions are obtained; D2, the stress bearing values at different positions of the pole aluminum copper of the forming warm rolling roller are summed to obtain a square difference value, and the square difference value is taken as the stress bearing representative value of the pole aluminum copper of the forming warm rolling roller; Step five, the mold pressing is carried out at room temperature, the forming of the small features of the boss of the roller and the shaping of the large boss are carried out; Step six, the pole is cut, and it is judged whether the product of the battery pole meets the standard; In step six, the copper strip surface flatness representative value K, the aluminum strip surface flatness representative value L and the stress bearing representative value of the pole aluminum copper of the forming warm rolling roller are processed, and the specific processing process is as follows: S1, based on the copper strip surface flatness representative value K and the aluminum strip surface flatness representative value L, the resistance representative value of the pole aluminum copper of the forming warm rolling roller is obtained; Specifically, the resistance representative value V of the pole aluminum copper of the forming warm rolling roller is obtained by V=lg(K+L)×h, and h represents a preset proportion coefficient; S2, based on the resistance representative value V of the pole aluminum copper of the forming warm rolling roller and the stress bearing representative value of the pole aluminum copper of the forming warm rolling roller, the standard judgment value of the pole aluminum copper of the forming warm rolling roller is obtained; In S2, the standard judgment value Q of the pole aluminum copper of the forming warm rolling roller is obtained by formula: Q=V / P^θ, P represents the stress bearing representative value of the pole aluminum copper of the forming warm rolling roller, and θ represents a preset proportion coefficient; Specifically, the standard judgment value Q of the pole aluminum copper of the forming warm rolling roller is compared with the preset standard judgment threshold value of the pole aluminum copper of the forming warm rolling roller, and the comparison process is as follows: If the standard judgment value Q of the pole aluminum copper of the forming warm rolling roller is greater than or equal to the preset standard judgment threshold value of the pole aluminum copper of the forming warm rolling roller, the pole aluminum copper of the forming warm rolling roller meets the standard; If the standard judgment value Q of the pole aluminum copper of the forming warm rolling roller is less than the preset standard judgment threshold value of the pole aluminum copper of the forming warm rolling roller, the pole aluminum copper of the forming warm rolling roller does not meet the standard.

[0023] Embodiment two, different from embodiment one, in step one, the aluminum ingot liquid is placed for 30 minutes at 800 DEG C to obtain an aluminum solution, and the quality of the aluminum solution is evaluated; Specifically, the continuous casting speed is 1200 mm / min, the casting width is 100 mm, and the casting thickness is 12 mm.

[0024] ​The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a copper-aluminum composite pole plate, characterized in that: The following steps are involved: Step 1: heating the aluminum ingot to 700-800°C for melting, and allowing the 700-800°C aluminum ingot liquid to stand for 0-30 minutes to obtain an aluminum solution; Step 2: roughening and cleaning the copper strip to complete the surface pretreatment of the copper strip; Step 3, continuously casting aluminum strips on the aluminum solution after standing; Step 4: Use forming rollers to form the pole aluminum boss to increase the copper-aluminum bonding strength and discharge aluminum waste; Step 5: Molding is performed at room temperature to form the fine features of the rolled bosses and reshape the large bosses; Step 6: Cut the battery pole and determine whether the battery pole product meets the standards; The forming warm rolling roller pole aluminum-copper standard judgment value Q is compared with the preset forming warm rolling roller pole aluminum-copper standard judgment threshold value. The comparison process is as follows: If the forming warm rolling roller pole aluminum-copper standard judgment value Q is greater than or equal to the preset forming warm rolling roller pole aluminum-copper standard judgment threshold, the forming warm rolling roller pole aluminum-copper meets the standard; If the forming warm rolling roller pole aluminum-copper standard judgment value Q is less than the preset forming warm rolling roller pole aluminum-copper standard judgment threshold, the forming warm rolling roller pole aluminum-copper does not meet the standard.

2. The method for preparing a copper-aluminum composite pole plate according to claim 1, characterized in that: In step 1, aluminum ingot liquid at 700-800° C. is allowed to stand for 0-30 minutes to obtain an aluminum solution, and the quality of the aluminum solution is evaluated; A1, testing the fluidity of the aluminum solution after it has been allowed to stand to obtain a representative value of the fluidity of the aluminum solution; A2, detecting the gas content of the aluminum solution after standing to obtain a representative value of the gas content of the aluminum solution; A3, based on the aluminum solution flow representative value E and the aluminum solution gas content representative value R, processing is performed to obtain the aluminum solution quality judgment value and evaluate the quality of the aluminum solution.

3. The method for preparing a copper-aluminum composite pole plate according to claim 2, characterized in that: In A1, the viscosity of the aluminum solution after standing is tested to determine the fluidity of the aluminum solution. The specific process is as follows: A101, extracting a portion of the aluminum solution and dividing it into several equal portions of the aluminum solution, and obtaining representative viscosity values ​​of the several equal portions of the aluminum solution; A102, based on the sum of the representative viscosity values ​​of several equal portions of aluminum solution, an average value is obtained, and the average value is used as the solution viscosity determination value; A103, based on the extracted viscosity judgment value of part of the solution, the representative value E of the flow of the aluminum solution is obtained through the formula: E=M×α, where M represents the solution viscosity judgment value and α represents the preset proportional coefficient.

4. The method for preparing a copper-aluminum composite pole plate according to claim 2, characterized in that: In A2, the gas content of the aluminum solution is determined by detecting the density deviation value of the aluminum solution after standing. The specific process is as follows: A201, obtain the density of the aluminum solution after standing; A202, subtract the density of the aluminum solution after standing from the standard density of the aluminum solution, and use the difference as the density deviation value of the actual aluminum solution; A203, based on the ratio of the actual density deviation of the aluminum solution to the standard density of the aluminum solution, uses the ratio as the representative value of the gas content of the aluminum solution; By formula: The representative value R of the gas content of the aluminum solution is obtained, F represents the standard density of the aluminum solution, U represents the density of the aluminum solution after standing, and β represents the preset proportional coefficient.

5. The method for preparing a copper-aluminum composite pole plate according to claim 2, characterized in that: In A3, processing is performed based on the representative value E of the aluminum solution flow and the representative value R of the aluminum solution gas content. The specific process is as follows: A301, based on the representative value E of aluminum solution flow and the representative value R of aluminum solution gas content, by the formula: Obtaining the quality judgment value W of the aluminum solution, where ε represents a preset proportional coefficient; A302, based on the quality judgment value W of the aluminum solution, compares the quality judgment value W of the aluminum solution with a preset quality judgment threshold of the aluminum solution. The specific comparison process is as follows: If the quality judgment value W of the aluminum solution is greater than or equal to the preset aluminum solution quality judgment threshold, the aluminum solution is judged to have high quality; if the quality judgment value W of the aluminum solution is less than the preset aluminum solution quality judgment threshold, the aluminum solution is judged to have low quality.

6. The method for preparing a copper-aluminum composite pole plate according to claim 1, characterized in that: In step 2, the copper strip after the texturing treatment and cleaning is processed to obtain the surface flatness value of the copper strip. The specific process is as follows: B1, testing the surface of the copper strip after the roughening treatment and cleaning to obtain the flatness values ​​of different positions on the surface of the copper strip; B2, screening based on the flatness values ​​of different positions on the copper strip surface to obtain the mode of the flatness values ​​of different positions on the copper strip surface; B3, based on the mode of the flatness values ​​at different positions on the copper strip surface, subtract the flatness values ​​at different positions on the copper strip surface from the mode of the flatness values, and use the difference as the flatness deviation value at different positions on the copper strip surface; B4, summing up the flatness deviation values ​​at different positions on the copper strip surface and taking the average value, and using the average value as the flatness deviation coefficient at different positions on the copper strip surface; B5, the representative value K of the copper strip surface flatness is obtained by the formula: K = T × ω, T represents the mode of the flatness values ​​at different positions on the copper strip surface, and ω represents the flatness deviation coefficient at different positions on the copper strip surface.

7. The method for preparing a copper-aluminum composite pole plate according to claim 1, characterized in that: In step three, the surface flatness of the aluminum strip after continuous casting is detected to obtain a representative value of the surface flatness of the aluminum strip after continuous casting. The specific processing process is as follows: C1, inspect the surface of the aluminum strip after continuous casting to obtain the flatness values ​​of different positions on the surface of the aluminum strip; C2, based on the flatness values ​​of different positions on the surface of the aluminum strip, screening is performed to obtain the flatness values ​​of different positions on the surface of the aluminum strip; C3, based on the flatness values ​​at different positions on the aluminum strip surface, sum and average the flatness values ​​at different positions on the aluminum strip surface, and use the average value as the representative value L of the flatness at different positions on the aluminum strip surface.

8. The method for preparing a copper-aluminum composite pole plate according to claim 1, characterized in that: In step 4, the stress tolerance test is performed on the aluminum and copper poles of the forming warm rolling roller to obtain a representative stress tolerance value; D1, perform stress tolerance test on different positions of the aluminum and copper poles of the forming warm rolling roller to obtain the stress tolerance values ​​at different positions; D2, based on the stress bearing values ​​of the aluminum and copper at different positions of the forming warm rolling roller pole, the square difference is summed and taken, and the square difference is used as the representative value of the stress bearing value of the aluminum and copper at the pole of the forming warm rolling roller.

9. The method for preparing a copper-aluminum composite pole plate according to claim 1, characterized in that: In step six, processing is performed based on the representative value K of the copper strip surface flatness, the representative value L of the flatness of different positions on the aluminum strip surface, and the representative value of the stress tolerance of the aluminum and copper of the forming warm rolling roller pole. The specific processing process is as follows: S1, based on the representative value K of the copper strip surface flatness and the representative value L of the flatness at different positions on the aluminum strip surface, obtain the representative resistance value of the aluminum-copper pole of the forming warm rolling roller; Specifically, V=lg(K+L)×h is used to obtain the resistance representative value V of the aluminum-copper pole of the forming warm rolling roller, where h represents a preset proportional coefficient; S2, processing is performed based on the resistance representative value V of the aluminum-copper forming warm rolling roller pole and the stress bearing representative value of the aluminum-copper forming warm rolling roller pole to obtain a standard judgment value of the aluminum-copper forming warm rolling roller pole.

10. The method for preparing a copper-aluminum composite pole plate according to claim 9, characterized in that: In S2, by formula: Obtain the standard judgment value Q of the aluminum-copper pole of the forming warm rolling roller, P represents the representative value of the stress tolerance of the aluminum-copper pole of the forming warm rolling roller, and θ represents the preset proportional coefficient; Specifically, the forming warm rolling roller pole aluminum-copper standard judgment value Q is compared with the preset forming warm rolling roller pole aluminum-copper standard judgment threshold value, and the comparison process is as follows: If the forming warm rolling roller pole aluminum-copper standard judgment value Q is greater than or equal to the preset forming warm rolling roller pole aluminum-copper standard judgment threshold, the forming warm rolling roller pole aluminum-copper meets the standard; If the forming warm rolling roller pole aluminum-copper standard judgment value Q is less than the preset forming warm rolling roller pole aluminum-copper standard judgment threshold, the forming warm rolling roller pole aluminum-copper does not meet the standard.

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