| 摘要 |
FIELD: machine building.SUBSTANCE: invention relates to acoustic and heat-insulation linings for use as automobile finishing part and concerns a pressurised steam moulded multilayer lining for heat and sound insulation. Lining comprises a first layer forming a reinforcement layer made of a blended web of polyamide matrix material in form of powder or fibres or flakes and reinforcement fibres, and at least a second layer chosen from an open cell foam layer, or a heat reflecting layer, or a second reinforcement layer made of a blended web of polyamide matrix material in form of powder or fibres or flakes and reinforcement fibres. Due to pressurised steam moulding, all layers are laminated together and all available blended webs are consolidated to form porous reinforcement layers.EFFECT: invention provides creation of linings with comparable heat-insulating and sound-absorbing properties, which are lighter and maintain structure for a long period of exposure of heat load in area of application.19 cl, 2 dwg |
