A manufacturing method of a polyurethane enameled round copper wire
A technology of polyurethane paint and manufacturing method, applied in the manufacture of cables/conductors, used to reduce the size of conductors/cables, electrical components, etc., can solve the problem of enameled wire tensile strength, elongation and other mechanical properties reduction, enameled wire manufacturing process Long time consumption, good mechanical properties of enameled wire, etc., to achieve the best balance between processing efficiency and process effect, speed up wire drawing effect, improve production quality and mechanical properties
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Embodiment 1
[0017] Example 1. A method for manufacturing polyurethane enameled copper round wire, comprising the following steps:
[0018] ① Conduct the first wire drawing on a copper rod with a diameter of 2.6mm. The speed of the copper rod during the first wire drawing is 800-1000 m / min. The diameter of the copper rod after wire drawing is 1.13mm, and the A copper wire is obtained;
[0019] ② Carry out the second wire drawing on the A copper wire, the running speed of the A copper wire during the second wire drawing is 1200-1400 m / min, the diameter of the A copper wire after wire drawing is 0.21mm, and the B copper wire is obtained;
[0020] ③Third drawing of B copper wire, the running speed of B copper wire during the third drawing is 1200-1800 m / min, the diameter of B copper wire after drawing is 0.04-0.12mm, and D copper wire is obtained;
[0021] ④ After passing the D copper wire through the annealing furnace, anneal the D copper wire through the annealing furnace at 450-550°C. The...
Embodiment 2
[0029] Example 2. A method for manufacturing polyurethane enameled copper round wire, comprising the following steps:
[0030] ①Draw the copper rod with a diameter of 2.6mm for the first time. The speed of the copper rod during the first wire drawing is 1000 m / min. The diameter after drawing is 1.13mm, and A copper wire is obtained;
[0031] ②Draw A copper wire for the second time. The speed of A copper wire during the second wire drawing is 1400 m / min. The wire drawing oil used in the second wire drawing is Ji 3 type mineral wire drawing oil. The diameter after drawing is 0.21mm, and B copper wire is obtained;
[0032] ③Third drawing of the B copper wire. The speed of the B copper wire during the third drawing is 1200 m / min. The drawing oil used for the third drawing is fully synthetic drawing oil. After the B copper wire is drawn The diameter is 0.12mm, get D copper wire;
[0033] ④ After passing the D copper wire through the protective tube of the annealing furnace, fil...
Embodiment 3
[0036] Example 3. A method for manufacturing polyurethane enamelled copper round wire, comprising the following steps:
[0037] ①Draw the copper rod with a diameter of 2.6mm for the first time. The speed of the copper rod during the first wire drawing is 800 m / min. The wire drawing oil used in the first wire drawing is A2 type mineral wire drawing oil. The diameter after drawing is 1.13mm, and A copper wire is obtained;
[0038] ② Conduct the second wire drawing on the A copper wire. The speed of the A copper wire during the second wire drawing is 1200 m / min. The wire drawing oil used in the second wire drawing is Ji 3 type mineral wire drawing oil. The diameter after drawing is 0.21mm, and B copper wire is obtained;
[0039] ③Third drawing of the B copper wire. The speed of the B copper wire during the third drawing is 1800 m / min. The drawing oil used in the third drawing is fully synthetic drawing oil. After the B copper wire is drawn The diameter is 0.04mm, get D copper ...
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