Rotor magnetic ring of high-efficiency micromotor and manufacturing method of rotor magnetic ring
A micro-motor and rotor technology, which is applied in the manufacture of motor generators, stator/rotor bodies, and magnetic circuits characterized by magnetic materials, can solve problems such as reducing injection molding temperature, molding instability, and magnetic performance degradation. Achieve the effect of reducing reluctance, motor quality breakthrough, and low motor noise
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Embodiment 1
[0028] 1. A high-efficiency micro-motor rotor magnetic ring, which is manufactured by injection molding with the following weight percentages of raw materials:
[0029] Ferrite powder 88%, poly 1,9-nonylidene terephthalamide (nylon 9T) 4%, polylaurolactam (nylon 12) 3%, nylon 6 / clay nanocomposite (NCH) 4% , Oleic acid 2%. The ferrite magnetic powder is spherical.
[0030] 2. The preparation method of the rotor magnetic ring of the micro motor includes the following steps:
[0031] (1) First use a high-speed mixer to mix 1 parts by weight of anisotropic spherical ferrite powder, poly 1,9-nonylidene terephthalamide (nylon 9T), polylaurolactam (nylon 12) Nylon 6 / clay nanocomposite (NCH) and oleic acid are mixed uniformly;
[0032] (2) Then use a twin-screw mixer at 232°C to fully mix each component mixture in step (1) to obtain high-performance injection-molded permanent ferrite, which is then pelletized to obtain an average particle size of 2 to 4 mm The particles are then obtained b...
Embodiment 2
[0034] 1. A high-efficiency micro-motor rotor magnetic ring, which is manufactured by injection molding with the following weight percentages of raw materials:
[0035] Ferrite magnetic powder 80%, poly 1,9-nonylidene terephthalamide (nylon 9T) 7%, polylaurolactam (nylon 12) 3%, nylon 6 / clay nanocomposite (NCH) 7% , Oleic acid 5%. The ferrite magnetic powder is nearly spherical particles.
[0036] 2. The preparation method of the rotor magnetic ring of the micro motor is characterized in that it comprises the following steps:
[0037] (1) First use a high-speed mixer to mix 1 parts by weight of anisotropic spherical ferrite powder, poly 1,9-nonylidene terephthalamide (nylon 9T), polylaurolactam (nylon 12) Nylon / clay nanocomposite (NCH) and oleic acid are mixed uniformly;
[0038] (2) Then use a twin-screw mixer at 240°C to fully mix each component mixture in step (1) to obtain high-performance injection-molded permanent ferrite, which is then pelletized to obtain an average particle...
Embodiment 3
[0040] 1. A high-efficiency micro-motor rotor magnetic ring, which is manufactured by injection molding with the following weight percentages of raw materials:
[0041] Ferrite magnetic powder 85%, poly 1,9-nonylidene terephthalamide (nylon 9T) 5%, polylaurolactam (nylon 12) 3%, nylon 6 / clay nanocomposite (NCH) 5% , Native oleic acid 2%. The ferrite magnetic powder is spherical particles.
[0042] 2. The preparation method of the rotor magnetic ring of the micro motor is characterized in that it comprises the following steps:
[0043] (1) First use a high-speed mixer to combine the anisotropic spherical ferrite powder, poly 1,9-nonylidene terephthalamide (nylon 9T), polylaurolactam ( Nylon 12), nylon / clay nanocomposite (NCH) and native oleic acid are mixed uniformly;
[0044] (2) Then use a twin-screw mixer at 250°C to fully mix the components of step (1) to obtain a high-performance injection-molded permanent ferrite, which is then pelletized to obtain an average particle size of 2...
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