Noise-absorbing heat-insulating flame-proof compound material for automobile as well as technique and method for producing the same

Abstract

The invention provides a sound-absorption heat-insulation flame-retardant composite material used for a vehicle. The material comprises rubber, felt, non-woven fabric and aluminum foil. The rubber, the felt, the non-woven fabric and the aluminum foil are combined as a whole body by bonding and pressing at a high temperature in sequence. The manufacturing process comprises the following steps: firstly bonding the rubber, the felt and the non-woven fabric in sequence through a wood glue adhesive, then conducing the pressing at the high temperature, and pressing and shaping with the aluminum foil at the high temperature. The main control conditions are as follows: (1) material thickness: the thickness of the rubber is 1 to 3mm, the thickness of the felt is 12-18mm, the thickness of the non-woven fabric is 1-2.5mm, and the thickness of the aluminum foil is 0.6-1.0mm; and (2) the control indexes of high temperature pressing: the temperature of an upper plate of the mould is 140 DEG C to 220 DEG C, the temperature of a lower plate of the mould is 130 DEG C to 190 DEGC, the pressure of a main cylinder is 16MPa, the control pressure is 4-6MPa, the slide stroke is 320-360mm, the holding time is 190-290s, the decompression time is 1.5-2.5s, and the whole shaping period is 300-450s.

Description

Technical field [0001] The present invention relates to a motor vehicle, in particular to a vehicle with sound absorption, heat insulation and flame retardant characteristics used in automobile engine timing gear covers, engine rocker covers, oil pans, automobile chassis, gearbox seals and other products Sound-absorbing, heat-insulating and flame-retardant composite material and its production process. Background technique [0002] At present, the noise and sound insulation measures for automobiles generally adopt double-walled layers, a combination of glass fiber board and rubber plate, a combination of steel plate and rubber, and a combination of sound-absorbing foam material, damping material and metal plate. Although these measures have Certain anti-noise and sound insulation effect, but the anti-noise and sound insulation effect is not ideal, and the sound insulation material does not have heat insulation and flame retardant performance. With the rapid development of my coun...

AI Technical Summary

Problems solved by technology

[0002] At present, noise-proof and sound-insulating measures for automobiles generally adopt double-walled layers, a combination of glass fiber board and rubber board, a combination of steel plate and rubber, and then apply noise-proof measures such as sound-absorbing foam materials, damping materials and metal plates. Although these measures have Certain noise-proof and sound-proof effect, but the sound-proof and sound-proof effect is not ideal, and the sound-proof material does not have heat-insulation and flame-retardant properties