Induction Bonding Rear View Mirror Brackets to Windshield Glass

Objective  Heat steel, stainless steel, nickel chrome rear view mirror brackets and adhesive are to be bonded onto a section of windshield glass. 

Material  Steel, Stainless Steel, and Nickel Chrome rear view mirror brackets measuring 1"(25.4mm) in diameter and 1/8" (3.2mm) thick. A 6" by 6"(152.4mm x 152.4mm) section of windshield glass. 

Temperature  300°F(148.9ºC) 

Frequency  455 kHz 

Equipment 
•  6kW induction heating system equipped with a remote workhead.

• An induction heating coil designed and developed specifically for this application. 

Process  A unique four over four double wound pancake coil is used for the bonding application. A temperature of 300°F(148.9ºC) is applied for 5 seconds to bond the adhesive to the mirror bracket and glass. 

Results/Benefits  
Induction heating provides:

• Provide high strength bond upon cooling

• Low temperature avoids damage to components

• Minimal energy and time