Manufacturing method of H-level and 200-level electromagnetic wire
A manufacturing method and electromagnetic wire technology, applied in the direction of cable/conductor manufacturing, circuits, electrical components, etc., can solve problems such as high energy consumption, electromagnetic wire pollution, etc., and achieve the effects of eliminating pollution, eliminating emissions, and high product quality
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[0017] The production method of the H grade and 200 grade electromagnetic wires of the present embodiment comprises: making pellets from nano-materials such as silicon dioxide, aluminum oxide, and aluminum nitride whose surface has been activated; the pellets are heated ( 90~95℃) vacuum drying for not less than 6 hours to remove volatile matter and moisture in the pellets.
[0018] The pellets include: 37wt% of silicon dioxide, 17wt% of aluminum oxide and 46wt% of aluminum nitride; the pellets are added to polyimide resin and stirred evenly to obtain an insulating resin for use.
[0019] Put the insulating resin into the hopper of the extruder and start the extruder; the extruder heats the insulating resin to 260-300° C., 350-360° C. and 360-365° C. step by step. At this time, the pellets are in a high-temperature viscous flow state, and are extruded to the machine head; the material flowing to the machine head is extruded from the mouth of the die sleeve through the annular g...
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