On absorbing heat and sound insulation, Aluminum foam for automotive can also play an immediate effect. It is used in passenger car mufflers, for example.
Passenger car foam muffler, Aluminum foam for automotive sound-absorbing board after refractory treatment, can be used in nearly 600℃ exhaust temperature. Noise reduction effect is 2 ~ 3 times that of impedance type silencer inner core and parallel resonance silencer inner core, weight reduction is about 1/3.
In addition, the Aluminum foam for automotive material to make car floor, spacer, door sandwich plate can also achieve sound insulation, shock isolation effect.
As the most large area of automobile covering parts, how to integrate the weight and strength requirements has been a headache for manufacturers. Using aluminum foam sandwich plate, thickness is only about 2mm, stiffness is 7 times of steel ceiling, weight can reduce more than 50%.
