Electrical aluminum rod wire drawing performance detection method

Abstract

The application provides a method for detecting the wire drawing performance of an electrician aluminum rod, relates to the technical field of material performance testing, and can realize that the performance detection result of the electrician round aluminum rod is highly consistent with the wire drawing production result. The method comprises the following contents: operating a torsion test on the electrician aluminum rod and obtaining a torsion test result; and determining the wire drawing machine production speed of the electrician aluminum rod according to the corresponding relationship between the torsion test result and the wire drawing machine production speed. That is, by establishing the corresponding relationship between the torsion test result and the wire drawing machine production speed, when the torsion test on the electrician aluminum rod is operated and the torsion test result is obtained, the wire drawing machine production speed of the electrician aluminum rod can be quickly determined. Through a large number of tests, the corresponding relationship between the torsion test result and the wire drawing machine production speed is obtained. The wire drawing machine production speed determined by the method for detecting the wire drawing performance of the electrician aluminum rod is highly consistent with the wire drawing production result in actual production, and thus the production efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material performance testing, in particular to a method for detecting the wire drawing performance of an electrical aluminum rod. BACKGROUND

[0002] In the current national standard GB / T3954-2014 "Electrical Aluminum Rod", the performance requirements of the electrical aluminum rod are specified, including tensile strength, elongation after fracture, resistivity, appearance, size, chemical composition, and other performance requirements, which are used for the detection control and production use control of the material quality of the electrical aluminum rod. The mechanical / physical properties mainly include the tensile strength and elongation after fracture indexes.

[0003] In practice, it is found that even if the electrical aluminum rod is detected and controlled according to the national standard requirements for all performance, especially the mechanical performance tensile strength and elongation after fracture, the detection results are basically consistent or have no visible differences. However, when the corresponding aluminum rod is used to produce different specifications of small wire diameter wires under the same production conditions (such as using a φ9.5mm aluminum rod to produce φ0.13mm, 0.15mm, 0.17mm, 0.18mm……etc. bare wire through large drawing, medium drawing and small drawing processes), the performance detection results of the electrical aluminum rod and the wire drawing production use results are obviously inconsistent or have no visible correlation. The tensile strength, elongation after fracture, resistivity, size and other index detection results meet the national standard requirements, and the corresponding performance results of the aluminum rod are the same or similar. However, the wire drawing production speed during the production process differs greatly, with a difference of even more than 50%. For example, the "traditional performance indexes" of the tensile strength, elongation after fracture, resistivity and size of the electrical aluminum rod are the same or similar. When used in the same small drawing machine production equipment to produce φ0.17mm wire diameter wires, some aluminum rods can be stably produced at a relatively high wire drawing speed of 1200-1500m / min, while some can only be produced at a wire drawing speed of 500-1000m / min or even lower, such as 300m / min. Otherwise, the wire will frequently break, especially the smaller the wire diameter specification produced, the greater the difference, which seriously affects the aluminum wire drawing production efficiency, product yield and increases the workload of the production operation process.

[0004] Therefore, a wire drawing performance detection method for electrical aluminum rods is needed to quickly, conveniently and accurately and reliably identify the relationship between the internal performance quality difference of the corresponding aluminum rod and the wire drawing machine production speed, and to ensure the efficient and orderly wire drawing production process. SUMMARY

[0005] The application aims to provide an electrical aluminum rod wire drawing performance detection method, which can realize that the performance detection result of the electrical round aluminum rod is highly consistent with the wire drawing production result (the production speed in actual wire drawing production).

[0006] To achieve the above-mentioned purpose, the application provides the following technical solutions.

[0007] The electrical aluminum rod wire drawing performance detection method provided by the application includes the following contents: performing an electrical aluminum rod torsion test and obtaining a torsion test result; determining the wire drawing machine production speed of the electrical aluminum rod according to the corresponding relationship between the torsion test result and the wire drawing machine production speed.

[0008] Further, the torsion test result is the torsion number when the electrical aluminum rod is torsion fractured; or the torsion test result is the fracture morphology when the electrical aluminum rod is torsion fractured.

[0009] Further, when the torsion test result is the torsion number when the electrical aluminum rod is torsion fractured, the corresponding relationship between the torsion test result and the wire drawing machine production speed includes the following contents: when the torsion number is greater than N1, the wire drawing machine produces according to the normal wire drawing speed.

[0010] Further, the corresponding relationship between the torsion test result and the wire drawing machine production speed also includes the following contents: when the torsion number is less than N2, the wire drawing machine produces according to the normal wire drawing speed and is suitable for producing the wire rod with a diameter greater than φm2 mm.

[0011] Further, the corresponding relationship between the torsion test result and the wire drawing machine production speed also includes the following contents: when the torsion number is greater than or equal to N2 and less than or equal to N1, the wire drawing machine production speed is determined by the diameter of the produced wire rod.

[0012] Further, the wire drawing machine production speed is determined by the diameter of the produced wire rod, and the specific content is as follows: if the wire rod with a diameter less than or equal to φm1 mm is produced, the wire drawing machine produces according to n1~n2% of the normal wire drawing speed, and if the wire rod with a diameter greater than φm1 mm is produced, the wire drawing machine produces according to the normal wire drawing speed, wherein m1

[0013] Further, when the torsion test result is the fracture morphology when the electrical aluminum rod is torsion fractured, the corresponding relationship between the torsion test result and the wire drawing machine production speed includes the following contents: when the test result is judged as the fracture is relatively smooth and the outer surface of the rod body near the fracture is relatively smooth, the wire drawing machine produces according to the normal wire drawing speed.

[0014] Further, the corresponding relationship between the torsion test result and the drawing machine production speed further comprises the following content: when the test result is judged as the fracture being seriously uneven and the outer surface of the rod body near the fracture being seriously rough grooves or lines, the drawing machine production speed is determined by the diameter of the wire rod.

[0015] Further, the corresponding relationship between the torsion test result and the drawing machine production speed further comprises the following content: when the test result is judged as the fracture being seriously uneven and the outer surface of the rod body near the fracture being seriously rough grooves or lines, the drawing machine production speed is determined by the diameter of the wire rod.

[0016] Further, the corresponding relationship between the torsion test result and the drawing machine production speed further comprises the following content: when the test result is judged as the fracture being seriously uneven and the outer surface of the rod body near the fracture being seriously rough grooves or lines, the drawing machine production speed is determined by the diameter of the wire rod.

[0017] The present application provides a kind of electrical aluminum rod wire drawing performance detection method provided by the present application, comprising the following content: operating electrical aluminum rod torsion test and obtaining torsion test result;According to the corresponding relationship between the torsion test result and the drawing machine production speed, the drawing machine production speed of the electrical aluminum rod is determined.I.e.

[0018] Through a large number of tests, the corresponding relationship between the torsion test result and the drawing machine production speed is obtained, and the drawing machine production speed determined by the electrical aluminum rod wire drawing performance detection method provided by the present application is highly consistent with the actual production result (the production speed in actual wire drawing production), and further, the production efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0020] Figure 1 is the comparison table of the total number of reverse turns of the electrical aluminum rod torsion test provided by the present application and the corresponding electrical aluminum rod actual wire drawing production speed;

[0021] Figure 2is a relationship diagram between the total number of reverse turns of the torsion test of the electrical aluminum rod and the production speed in actual wire drawing production of the corresponding electrical round aluminum rod provided by the embodiment of the present application.

[0022] Figure 3 is a corresponding relationship table of the torsion test result and the wire drawing machine production speed provided by the embodiment of the present application.

[0023] Figure 4 is a flowchart of the electrical aluminum rod wire drawing performance detection method provided by the embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] Embodiment 1

[0026] The present application provides an electrical aluminum rod wire drawing performance detection method provided by the present application, which comprises the following contents: operating the torsion test of the electrical aluminum rod and obtaining the torsion test result; determining the wire drawing machine production speed of the electrical aluminum rod according to the corresponding relationship of the torsion test result and the wire drawing machine production speed. That is, by establishing the corresponding relationship of the torsion test result and the wire drawing machine production speed, when the torsion test of the electrical aluminum rod is operated and the torsion test result is obtained, the wire drawing machine production speed of the electrical aluminum rod can be quickly determined.

[0027] Through a large number of tests, the corresponding relationship of the torsion test result and the wire drawing machine production speed is obtained, and the wire drawing machine production speed determined by the electrical aluminum rod wire drawing performance detection method provided by the present application is highly consistent with the actual production result (the production speed in actual wire drawing production), and thus the production efficiency can be improved.

[0028] The torsion test result is the number of torsions when the electrical aluminum rod is torsionally broken, and when the bidirectional torsion test is performed by using the torsion tester (each torsion detection period is first forward rotation and then reverse rotation), the number of torsions can be the total number of reverse turns.

[0029] When the torsion test result is the number of torsions when the electrical aluminum rod is torsionally broken, the corresponding relationship of the torsion test result and the wire drawing machine production speed comprises the following contents: when the number of torsions is greater than N1, the wire drawing machine produces according to the normal wire drawing speed;

[0030] When the number of twists is less than N2, the wire drawing machine produces wire rods with diameters greater than φm2mm at normal wire drawing speed, that is, when the number of twists is less than N2, the wire drawing machine produces wire rods with diameters greater than φm2mm at normal wire drawing speed.

[0031] When the number of twists is greater than or equal to N2 and less than or equal to N1, the wire drawing speed is determined by the diameter of the wire rod. The specific content is as follows: if the wire rod is less than or equal to φm1mm, the wire drawing machine is produced at n1-n2% of the normal wire drawing speed, that is, if the wire rod is less than or equal to φm1mm, the wire drawing machine cannot be produced at normal speed, but the wire drawing speed needs to be reduced, and if the wire rod is greater than φm1mm, the wire drawing machine is produced at normal wire drawing speed, wherein m1

[0032] Referring to Figure 4 , a flow chart of the electrical aluminum rod wire drawing performance detection method is shown:

[0033] First, the sample is prepared; then, the running parameters of the torsion testing machine are set; then, the test sample is installed on the torsion testing machine (a torsion testing machine with a specification range of φ1.0-10.0mm metal wire rod is used as an auxiliary tool); the torsion test is detected, the torsion test result (i.e. the total number of forward and reverse rotations) is recorded, and the sample is taken out and the appearance is detected; the detection result is informed to the production department, and the production department determines and confirms the wire drawing machine production speed according to the detection result and the "corresponding relationship between the torsion test result and the wire drawing machine production speed".

[0034] The present application can quickly, conveniently and accurately detect and determine the material performance affecting the wire drawing production speed of the electrical round aluminum rod, and the corresponding performance detection result is highly consistent with the actual wire drawing production speed of the aluminum wire. The detection operation of the present application is simple and easy to understand, the operation process is simple, the detection result is stable and reliable, and the cost is low. The present application can timely confirm the poor electrical round aluminum rod, avoid the flow of poor electrical round aluminum rod material into the production process, and affect the downstream aluminum wire drawing production efficiency and product quality. The present application is applied to the production process of the electrical round aluminum rod, can timely find the defects in the aluminum rod production process, is beneficial to the aluminum rod production plant to timely find and solve problems, and can stabilize and improve the quality level of the aluminum rod.

[0035] Regarding the normal wire drawing speed of the wire drawing machine, each wire drawing machine has its own normal wire drawing speed. The "normal wire drawing speed" is the maximum speed when the wire drawing machine can normally operate.

[0036] Regarding the confirmation of N1, N2, φm1, φm2, n1 and n2, the test is combined to explain:

[0037] "Operation of the electrical aluminum rod torsion test", the industry commonly used φ9.5mm electrical round aluminum rod as an example:

[0038] (1) sample preparation: from the aluminum rod material to take a section of about 535mm long aluminum rod, and using a wooden hammer or rubber hammer straightening

[0039] (2) the above straightened sample is installed in the torsion testing machine, wherein the effective length of detection should be 475mm, and the two ends of the clamp are about 30mm;

[0040] (3) set the torsion test machine test running parameters: bidirectional torsion, first positive rotation 30 then reverse 30 (positive rotation 30 then reverse 30 for a cycle), torsion speed 30r / min; torsion tension hammer weight, using the mark: "50kg 1 / 100" weight, the weight of the weight is 0.5kg (by adjusting the cycle number of turns, speed or the application of test weight, for example, the speed is adjusted to 25, 35r / min or cycle number of turns is set to positive rotation 25, reverse 35, etc., can also achieve similar results).

[0041] (4) start the torsion testing machine for torsion detection, during the test, after each torsion cycle is completed, immediately press the "clear" and "positive rotation" key, enter the next torsion cycle, until the sample is broken (the test machine stops running), record the total number of positive rotation and reverse rotation in the test process. Since each torsion detection cycle is first positive rotation and then reverse rotation, the total number of reverse rotation can accurately and conveniently measure the torsion performance of the electrical aluminum rod.

[0042] Referring to table 1, table 1 is the total number of reverse rotation of electrical aluminum rod torsion test and the corresponding electrical round aluminum rod actual wire drawing production speed comparison table; Table 2 is the total number of reverse rotation of electrical aluminum rod torsion test and the corresponding electrical round aluminum rod actual wire drawing production speed relationship diagram. From the test results, it can be concluded that the total number of reverse rotation of electrical round aluminum rod has a significant positive correlation with the wire drawing production speed of the corresponding wire rod. The correlation coefficient between the total number of reverse rotation of the aluminum rod and the production speed of the wire drawing machine is 0.927 (Spearman correlation coefficient), that is, the correlation between the total number of reverse rotation and the wire drawing production speed is highly correlated.

[0043] Based on the torsion test of φ9.5mm electrical round aluminum rod (which can be used for smaller or larger round aluminum rod or round aluminum wire, such as φ5.0, 10.0mm wire or rod), the following "torsion test results and wire drawing machine production speed corresponding relationship" is obtained, which can be seen in table 3:

[0044] When the total number of reverse rotation of the torsion test is greater than 90 (N1 is 90), the wire drawing machine produces at normal wire drawing speed;

[0045] When the total number of reversals of the torsion detection is less than 60 (N2 is 60), the wire drawing machine produces the wire rod at a normal wire drawing speed suitable for producing the wire rod with a diameter greater than φ1.00 mm (m2 is 1);

[0046] When the total number of reversals of the torsion detection is greater than or equal to 60 (N2 is 60) and less than or equal to 90 (N1 is 90), the wire drawing speed of the wire drawing machine is determined according to the diameter of the wire rod. The specific content is as follows: if the wire rod with a diameter less than or equal to φ0.2 mm (m1 is 0.2) is produced, the wire drawing machine is produced at 70-80% (n1 is 70, n2 is 80) of the normal wire drawing speed of the wire drawing machine, and if the wire rod with a diameter greater than φ0.2 mm (m1 is 0.2) is produced, the wire drawing machine is produced at the normal wire drawing speed.

[0047] Therefore, the corresponding aluminum rod materials can be classified and used in the manner shown in Table 3, which is highly consistent with the actual wire drawing production results (the production speed during actual wire drawing production), thereby maximizing the guarantee of wire drawing production efficiency.

[0048] Regarding N1, N2, φm1, φm2, n1 and n2, N1 is only 90, N2 is only 60, m2 is only 1, m1 is only 0.2, and n1 is only 70, n2 is only 80 provided by the invention, which is not limited.

[0049] In addition, regarding the surface appearance and fracture morphology of the aluminum rod after the torsion test, the results can be summarized as follows in general:

[0050] 1) When the total number of reversals of the torsion detection is greater than 90 (N1 is 90): the fracture is relatively smooth and the outer surface of the rod body near the fracture is relatively smooth and smooth;

[0051] 2) When the total number of reversals of the torsion detection is greater than or equal to 60 (N2 is 60) and less than or equal to 90 (N1 is 90): the fracture has a notch and / or the outer surface of the rod body near the fracture has rough grooves / lines;

[0052] 3) When the total number of reversals of the torsion detection is less than 60 (N2 is 60): the fracture is severely uneven, and the outer surface of the rod body near the fracture has severely rough grooves / lines.

[0053] Example 2:

[0054] The present application provides a kind of electrical aluminum rod wire drawing performance detection method provided by the present application, including the following contents: operating electrical aluminum rod torsion test and obtaining torsion test result;According to the corresponding relationship between torsion test result and wire drawing machine production speed, determine the wire drawing machine production speed of the electrical aluminum rod.That is, by establishing the corresponding relationship between the torsion test result and the wire drawing machine production speed, when the electrical aluminum rod is twisted and the torsion test result is obtained, the wire drawing machine production speed of the electrical aluminum rod can be quickly determined.

[0055] Through a large number of experiments, the "corresponding relationship between the torsion test result and the wire drawing machine production speed" is obtained, and the wire drawing machine production speed determined by the electrical aluminum rod wire drawing performance detection method provided by the present application is highly consistent with the actual wire drawing production result (the actual wire drawing production speed), thereby improving the production efficiency.

[0056] When the torsion test result is the fracture morphology of the electrical aluminum rod torsion fracture, the corresponding relationship between the torsion test result and the wire drawing machine production speed includes the following contents: when the test result is judged to be that the fracture is relatively smooth and the outer surface of the rod body near the fracture is relatively round and smooth, the wire drawing machine produces according to the normal wire drawing speed;

[0057] When the test result is judged to be that the fracture is seriously uneven, and the outer surface of the rod body near the fracture is a serious rough groove or line, it is suitable for producing the wire rod with a diameter greater than φm2, that is, when the test result is judged to be that the fracture is seriously uneven, and the outer surface of the rod body near the fracture is a serious rough groove or line, the wire drawing machine produces according to the normal wire drawing speed, which is suitable for producing the wire rod with a diameter greater than φm2 mm;

[0058] When the test result is judged to be that the fracture has a notch and / or the outer surface of the rod body near the fracture is a rough groove or line, the wire drawing machine production speed is determined by the diameter of the wire rod. The specific contents are as follows: if the wire rod with a diameter less than or equal to φm1 is produced, the wire drawing machine produces at n1-n2% of the normal wire drawing speed, that is, if the wire rod with a diameter less than or equal to φm1 mm is produced, the wire drawing machine cannot produce at the normal speed, but needs to reduce the wire drawing speed, and if the wire rod with a diameter greater than φm1 is produced, the wire drawing machine produces at the normal wire drawing speed, wherein m1

[0059] Regarding the confirmation of φm1, φm2, n1 and n2, the following contents are summarized in "confirmation of N1, N2, φm1, φm2, n1 and n2" described in embodiment 1:

[0060] 1) When the total number of reversals of the torsion detection is greater than 90 (N1 is 90): the fracture is relatively smooth and the outer surface of the rod body near the fracture is relatively round and smooth;

[0061] 2) When the total number of reversals of the torsion detection is greater than or equal to 60 (N2 is 60) and less than or equal to 90 (N1 is 90): the fracture has a notch and / or the outer surface of the rod body near the fracture has a rough groove / line;

[0062] 3) When the total number of reversals of the torsion detection is less than 60 (N2 is 60): the fracture is seriously uneven, and the outer surface of the rod body near the fracture has a serious rough groove / line.

[0063] Therefore, when the test result is judged as the fracture is relatively smooth and the outer surface of the rod near the fracture is relatively smooth, the wire drawing machine produces according to the normal wire drawing speed;

[0064] When the test result is judged as the fracture is seriously uneven, and the outer surface of the rod near the fracture is serious rough groove or line, it is suitable for producing the wire rod with the diameter greater than φ1.00mm (m2 is 1);

[0065] When the test result is judged as the fracture has notch and / or the outer surface of the rod near the fracture is rough groove or line, the wire drawing speed is determined according to the diameter of the wire rod. The specific content is as follows: if the wire rod with the diameter less than or equal to φ0.2mm (m1 is 0.2) is produced, the wire drawing machine produces according to 70-80% (n1 is 70, n2 is 80) of the normal wire drawing speed; if the wire rod with the diameter greater than φ0.2mm (m1 is 0.2) is produced, the wire drawing machine produces according to the normal wire drawing speed.

[0066] The aluminum rod material is classified according to the surface appearance and the fracture shape of the aluminum rod after the torsion test, and the result is consistent with the result according to the total number of reversals in Example 1. In practice, there is a certain human difference in the appearance recognition process, and the classification according to the total number of reversals in Example 1 can avoid this subjective influence, so it is more suitable to classify and apply the aluminum rod material according to the total number of reversals.

[0067] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for detecting the wire drawing performance of an electrical aluminum rod, characterized in that, The method comprises the following steps: operating a torsion test of the aluminum electrical rod to obtain a torsion test result; determining a wire drawing machine production speed of the aluminum electrical rod according to a corresponding relationship between the torsion test result and the wire drawing machine production speed.

2. The method for detecting the wire drawing performance of an electrical aluminum rod according to claim 1, characterized in that, The torsion test result is a torsion number of the aluminum electrical rod when the aluminum electrical rod is broken in torsion; or the torsion test result is a fracture morphology of the aluminum electrical rod when the aluminum electrical rod is broken in torsion.

3. The method for detecting the wire drawing performance of an electrical aluminum rod according to any one of claims 1-2, characterized in that, When the torsion test result is the torsion number of the aluminum electrical rod when the aluminum electrical rod is broken in torsion, the corresponding relationship between the torsion test result and the wire drawing machine production speed comprises the following steps: When the number of twists of a φ 9.5 mm electrical aluminum rod is greater than When the number of twists of a φ 9.5 mm electrical aluminum rod is greater than When the number of twists of a φ 9.5 mm electrical aluminum rod is greater than 4. The method for detecting the wire drawing performance of an electrical aluminum rod according to claim 3, characterized in that, The corresponding relationship between the torsion test result and the wire drawing machine production speed further comprises the following steps: When the number of twists of a φ 9.5 mm electrical aluminum rod is less than , the wire drawing machine produces wire rods with diameters greater than mm at normal wire drawing speed, 60, 1.

5. The method for detecting the wire drawing performance of an electrical aluminum rod according to claim 4, characterized in that, The corresponding relationship between the torsion test result and the wire drawing machine production speed further comprises the following steps: When the number of twists of a φ 9.5 mm electrical aluminum rod is greater than or equal to and less than or equal to the wire drawing machine production speed is determined by the diameter of the wire rod.

6. The method for detecting the wire drawing performance of an electrical aluminum rod according to claim 5, characterized in that, The wire drawing machine production speed is determined according to a diameter of a wire rod, and the specific content is as follows: If production is less than or equal to For wire of mm diameter, at the normal drawing speed of the wire drawing machine... Production will commence if production exceeds [a certain threshold]. The wire is made of mm diameter and produced by the drawing machine at a normal drawing speed. , and Greater than 0 and less than 100 It is 0.

2. For 70, It is 80.

7. The method for detecting the wire drawing performance of an electrical aluminum rod according to claim 1 or 2, characterized in that, When the torsion test result is the fracture morphology of the aluminum electrical rod when the aluminum electrical rod is broken in torsion, the corresponding relationship between the torsion test result and the wire drawing machine production speed comprises the following steps: When the test result is determined to be a relatively smooth fracture and a relatively smooth and flat outer surface of the rod body near the fracture, the wire drawing machine is produced at a normal wire drawing speed.

8. The method for detecting the wire drawing performance of an electrical aluminum rod according to claim 7, characterized in that, The corresponding relationship between the torsion test result and the wire drawing machine production speed further comprises the following steps: When the test result judges that the fracture is seriously uneven, the outer surface of the rod body near the fracture is a serious rough groove or line, it is suitable for the wire rod with diameter greater than 1 mm, 1.

9. The method for detecting the wire drawing performance of an electrical aluminum rod according to claim 7, characterized in that, The corresponding relationship between the torsion test result and the wire drawing machine production speed further comprises the following steps: When the test result is determined to be a fracture with a notch and / or a rough groove or line near the fracture, the wire drawing machine production speed is determined according to the diameter of the wire rod.

10. The method for detecting the wire drawing performance of an electrical aluminum rod according to claim 9, characterized in that, The wire drawing machine production speed is determined according to the diameter of the wire rod, and the specific content is as follows: If production is less than or equal to For wire of mm diameter, at the normal drawing speed of the wire drawing machine... Production will commence if production exceeds [a certain threshold]. The wire is made of mm diameter and produced by the drawing machine at a normal drawing speed. and Greater than 0 and less than 100 It is 0.

2. For 70, It is 80.

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