EP 3294591 A1 20180321 - METHOD FOR PRODUCING AN ACOUSTIC PROTECTION PANEL INTENDED TO BE FITTED FACING A NOISY AND HOT SOURCE OF A VEHICLE
Title (en)
METHOD FOR PRODUCING AN ACOUSTIC PROTECTION PANEL INTENDED TO BE FITTED FACING A NOISY AND HOT SOURCE OF A VEHICLE
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER SCHALLSCHUTZPLATTE ZUR MONTAGE GEGENÜBER EINER RAUSCH- UND WÄRMEQUELLE EINES FAHRZEUGS
Title (fr)
PROCÉDÉ DE RÉALISATION D'UN PANNEAU DE PROTECTION ACOUSTIQUE DESTINÉ À ÊTRE MONTÉ EN REGARD D'UNE SOURCE SONORE ET CHAUDE DE VÉHICULE
Publication
Application
Priority
- FR 1554307 A 20150513
- FR 2016051130 W 20160512
Abstract (en)
[origin: WO2016181084A1] The invention relates to a method involving the following steps: using thermocompression to create, in a first mould (20), a screen (4) comprising two parts (7a, 7b) arranged relative to one another in a first configuration that allows them to be released from the mould, said parts each comprising a fibrous and porous thermal insulation layer (5) and a heat-reflecting metal sheet (6); placing said parts side by side in juxtaposition in a second mould the moulding cavity of which corresponds to the geometry of said panel that is to be obtained, so that said parts can, by being pressed firmly against the wall of said cavity, adopt a second configuration corresponding to said geometry, said fibrous layer facing toward the inside of said cavity; injecting into said cavity a mixture that is a precursor of foam, so as to form a core (2) overmoulding said fibrous layer; then, after the foam has expanded, releasing said panel obtained from the mould.
IPC 8 full level
B60R 13/08 (2006.01)
CPC (source: EP US)
B60R 13/0815 (2013.01 - US); B60R 13/0838 (2013.01 - EP US); B60R 13/0876 (2013.01 - EP US)
Citation (search report)
See references of WO 2016181084A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016181084 A1 20161117; CN 107848471 A 20180327; CN 107848471 B 20210430; EP 3294591 A1 20180321; FR 3036076 A1 20161118; FR 3036076 B1 20170623; US 2018354429 A1 20181213
DOCDB simple family (application)
FR 2016051130 W 20160512; CN 201680034462 A 20160512; EP 16729023 A 20160512; FR 1554307 A 20150513; US 201615573567 A 20160512