About voice coil
The voice coil frame is the support frame of the voice coil, which requires light weight, good rigidity, not easy to deform, good temperature resistance and heat dissipation effect; commonly used materials are paper, kapton, aluminum, glass fiber, nomax, etc.; the temperature resistance of the paper after gluing It is 180 degrees and is often used in low-power and tweeters with medium and small calibers. The thickness is 0.05-0.08mm. It has the characteristics of light weight and low price and easy to glue; kapton has a temperature resistance of more than 210 degrees, and is often used for medium and low power speakers with medium caliber. In the speaker, the thickness is 0.05-0.18mm, it has light weight, heat dissipation and other hot spots. The temperature resistance of aluminum is more than 200 degrees, and the thickness is 0.03-0.20mm. It has light weight, good heat dissipation, good transient performance, heat resistance and strong rigidity. It is widely used in speakers of different calibers. The high-power ones can also be made of black alumina, with a temperature resistance of more than 230 degrees.
