Composite multi-effect automobile heat insulation plate and preparation method thereof

Abstract

The invention relates to the technical field of automobile parts, in particular to a composite multi-effect automobile heat insulation plate which comprises a heat insulation plate body and long flowguide grooves. The heat insulation plate body comprises a heat insulation base layer, a heat insulation protection layer and a sound insulation layer, and the heat insulation protection layer is arranged above the heat insulation base layer and comprises heat insulation mortar and microporous ceramic balls; a reinforcing metal grid is arranged above the heat insulation protection layer, the upperportion of the reinforcing metal grid is coated with a noise reduction damping layer, and a sound insulation layer is arranged above the noise reduction damping layer. A second noise reduction dampinglayer is arranged above the sound insulation layer, and the outer side of the noise reduction damping layer is coated with a heat conduction layer; the section of the heat insulation plate body is ofa continuous waveform structure, and a plurality of long flow guide grooves are formed in the heat insulation plate body at intervals. The composite multi-effect automobile heat insulation plate is simple in structure and high in functionality, has the effects of heat insulation protection and noise reduction, and is high in stability and pressure resistance.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a composite multi-effect heat insulation board for automobiles and a preparation method thereof. Background technique [0002] Automobile body heat insulation board, also known as heat shielding board, is a thin metal plate placed between adjacent surfaces in heat transfer engineering to reduce the harm of radiant heat exchange surface to other parts. Body heat shields are generally arranged on both sides of the engine and above the exhaust pipe channel at the bottom of the body. It mainly uses the reflective adiabatic principle of the heat screen to cut off the heat transfer, and it also has a certain effect of local noise isolation. [0003] The heat transfer process of automobile heating parts to the interior of the car body is very unstable, and is greatly affected by factors such as ambient temperature, wind speed, and the motion state of the car itself. It needs to be a...

AI Technical Summary

Problems solved by technology

Existing heat shield panels for automobiles mostly adopt a single-layer structure, which has poor functionality and cannot meet the above requirements

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