Induction Bonding Rubber To Steel

Induction Bonding Rubber To Steel With High Frequency Heating System Objective To bond rubber gaskets to the top and bottom of a steel gas tank assembly. Material Flat and round rubber gaskets, steel gas tank assembly Temperature 300 to 350°F(148.9-176.7°C) Frequency 200 kHz for the flat gasket; 231 kHz for the round gasket Equipment • DW-UHF-10kW induction heating system equipped with a remote workhead containing two 1.25 μF capacitors for a total of 0.625 μF • An induction heating coil designed and developed specifically for this application. Process Two two-turn pancake coils are specially contoured to the the shape of the steel assembly to produce uniform heat in the gasket areas. The gaskets are positioned over the joint areas. Power is applied for 6.5 seconds to reach the bonding temperature of 320°F (160°C). Results/Benefits Induction heating provides: • Repeatable, rapid & accurate heating cycles • Reduced process time • Even distribution of heat

Bonding Steel Into Rubber With Induction Heater

Bonding Steel Into Rubber With Induction Heater Objective To heat metal clips and press-bond them into rubber seals. The metal needs to be heated to 250°F to 350°F with a cycle time not exceeding 3 seconds Material Steel clips and rubber sealer blocks Temperature 250°F to 350°F Frequency 400 kHz Equipment DW-UHF-4.5kW power supply including one remote heat station with one 1.2 μF capacitor using a specially designed 3-turn pancake coil Process As illustrated below Results Heating time of 1.5 seconds was attained; shorter heating times are possible due to fast response of the power supply. Bond formation is acceptable due to the even heat pattern produced through induction heating.