Development of Exmani-Heat protector to Improve Sound Absorption
using New Perforated Thin Aluminum Plate 2020-01-0405
This technology is a technology for reducing the gas flow noise generated from the noise of the vehicle, especially the exhaust system. The primary function of the heat protector is thermal shutdown. However, due to the increase in engine power, downsizing of engines, and the rise of consumer's eye level, solutions about noise are now emphasized. Established the manufacturing technology of 3-ply composite board which can absorb sound in the existing heat protector. For this purpose, mold technology for punching aluminum sheet, optimization technique for punching effect, unique high-strength / high-forming pattern design, sound absorbing material selection and composite sheet molding technology, and noise vibration reduction mounting technology for plate joining were developed.