Wrapped magnet wire and its preparation method
An electromagnetic wire and wrapping technology, which is applied in the direction of circuits, insulated cables, electrical components, etc., can solve problems such as safety accidents, poor high temperature hydrolysis resistance, and reduced insulation performance of electromagnetic wires, so as to prolong the service life and achieve good insulation consistency. , improve the effect of the overall insulation
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[0038] Correspondingly, the present invention also provides a method for preparing a wrapped electromagnetic wire, comprising the following steps:
[0039] provide metal conductors;
[0040] The linear aromatic semi-crystalline polymer film is wrapped on the metal conductor, and after sintering, an insulating layer is compounded on the metal conductor to obtain a wrapped electromagnetic wire.
[0041] The preparation method provided by the embodiment of the present invention mainly includes four basic steps of inner conductor surface treatment, film coating, sintering and cooling to obtain a linear aromatic semi-crystalline polymer film wrapped and sintered magnet wire, which has excellent insulation , high temperature resistance, hydrolysis resistance, radiation resistance and penetration resistance, etc., suitable for special occasions such as medical components, subsea equipment, oil and gas wells and nuclear power equipment motors.
[0042] see figure 2 , figure 2 It ...
Embodiment 1
[0062] Provide oxygen-free copper rods, treat their surfaces to make them smooth, dry, scratch-free, and remove surface stains;
[0063] Wrap the PEEK film on the processed oxygen-free copper rod through the wrapping machine, pay attention to keep the surface of the film free of impurities such as oil and dust; the lapping rate is 66%, the wrapping tension is controlled at 9N, and the pitch drift is controlled at 0.04 below mm;
[0064] Pass the wrapped oxygen-free copper rod evenly through the high-frequency thermal fusion sintering equipment, control the sintering temperature at 345°C, and control the sintering line speed at 6m / min, then use infrared radiation furnace to heat, and the furnace temperature is controlled at 540°C. The PEEK film is melted and closely adhered to the inner conductor, an insulating layer is compounded on the inner conductor, and then cooled to room temperature to obtain a wrapped magnet wire.
[0065] The surface of the obtained wrapping magnet wi...
Embodiment 2
[0071] Provide oxygen-free copper rods, treat their surfaces to make them smooth, dry, scratch-free, and remove surface stains;
[0072] Wrap the PEK film on the treated oxygen-free copper rod through the wrapping machine, pay attention to keep the surface of the film free of impurities such as oil and dust; the lapping rate is 66%, the wrapping tension is controlled at 12N, and the pitch drift is controlled at 0.04 below mm;
[0073] Pass the wrapped oxygen-free copper rod evenly through the high-frequency thermal fusion sintering equipment, control the sintering temperature at 365°C, and control the sintering line speed at 7m / min, then use infrared radiation furnace to heat, and the furnace temperature is controlled at 520°C. The PEK film is melted and closely adhered to the inner conductor, an insulating layer is compounded on the inner conductor, and then cooled to room temperature to obtain a wrapped electromagnetic wire.
[0074] The surface of the obtained wrapping mag...
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