What is SV glue?
SV glue, also known as Silver Voice Coil glue, stands for Silver Voice Coil glue. It is a high-temperature resistant adhesive designed specifically for speaker voice coils, mainly used to fix the position of voice coil wires on the skeleton and provide good insulation and heat resistance performance.
Why do voice coil wires need to be coated with SV glue?
Fixed: SV glue can firmly fix the voice coil wire to the skeleton, preventing loosening or detachment during vibration.
Insulation: SV glue has good insulation performance, preventing short circuits in the voice coil line and ensuring the normal operation of the speaker.
Heat resistance: SV adhesive can withstand high temperature environments, preventing the adhesive layer from aging, falling off, or deforming during prolonged operation of the speaker, which can affect sound quality.
Location and method of applying SV adhesive
Brushing position: mainly applied to the part where the voice coil line contacts the skeleton.
Painting method:
Uniform application: Ensure uniform thickness of the adhesive layer and avoid local over thickness or over thickness.
Avoid bubbles: When applying glue, be careful not to produce bubbles to avoid affecting the bonding strength.
Curing conditions: Choose the appropriate curing temperature and time based on the specific model of SV adhesive, usually requiring curing at high temperatures.
Selection of SV adhesive
Temperature resistance: Select the appropriate temperature resistance level based on the working environment temperature of the speaker.
Adhesive strength: Ensure sufficient adhesive strength between SV adhesive and voice coil wire and skeleton.
Insulation performance: Choose SV adhesive with good insulation performance to prevent leakage.
Issues to be noted when applying SV adhesive
Adhesive model: Different SV adhesive models have different properties, so carefully read the product manual when choosing.
Glue application tool: Choose a suitable glue application tool, such as a brush, scraper, etc., to ensure even glue application.
Environmental temperature: Control the environmental temperature during adhesive application to avoid excessive or insufficient temperature affecting the curing of the adhesive.
Curing time: Strictly follow the time and temperature specified in the product manual for curing.
The influence of SV adhesive coating on sound quality
The quality and coating process of SV glue will directly affect the sound quality of the speaker. If the adhesive strength of SV glue is not sufficient, the voice coil wire may loosen, resulting in distortion of sound quality. If the insulation performance of SV adhesive is poor, it may produce noise.
