In this application test, we are heating to curing temperature using induction, to attach a speaker diaphragm to a speaker basket. The adhesive will be applied to the speaker basket, and the speaker diaphragm placed immediately above. The adhesive has an activation temperature of 134° F, or 57° C. The customer wants to use induction for heating the speaker basket to the curing temperature. This will activate the adhesive, and create the bond to the rubber speaker diaphragm.
This application test will confirm that the speaker basket will heat to the bonding activation temperature of 134° F (57°C) within 2-3 seconds.
HS-4 Heat Station
Two-turn induction coil
Temperature: Just above 134°F (57°C)
Power: 0.5 kW
Time: 2 seconds