EP3440667A1 - Procédé de fabrication d'un panneau de protection acoustique pour véhicule automobile - Google Patents
Procédé de fabrication d'un panneau de protection acoustique pour véhicule automobileInfo
- Publication number
- EP3440667A1 EP3440667A1 EP17721768.4A EP17721768A EP3440667A1 EP 3440667 A1 EP3440667 A1 EP 3440667A1 EP 17721768 A EP17721768 A EP 17721768A EP 3440667 A1 EP3440667 A1 EP 3440667A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- zone
- thickness
- location
- complex
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
- B29C51/004—Textile or other fibrous material made from plastics fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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- B32B3/263—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer having non-uniform thickness
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- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/10—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer reinforced with filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
- B32B5/142—Variation across the area of the layer
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
- B32B5/145—Variation across the thickness of the layer
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
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- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
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- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
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- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
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Definitions
- the invention relates to a method for manufacturing an acoustic protection panel for a motor vehicle and a panel obtained by such a method.
- an intermediate acoustic absorption layer comprising a porous matrix based on flexible foam flakes, in particular derived from recycling, bound together by a binder within which are dispersed particles of dense material, especially derived from recycling, of higher density than that of said matrix,
- a place layer in the form of a web of porous material, for protecting said intermediate layer, said web being in particular based on a nonwoven fabric,
- Such an embodiment makes it possible to obtain a panel having both absorption and acoustic insulation properties.
- the insulation it is generated by the sealed barrier in combination with the mass imparted to the intermediate layer by the particles of dense material, the assembly being disposed on a foam layer resulting from the molding RIM, so as to achieve a "mass-spring" type insulation.
- the intermediate layer has a reduced or very low porosity, which does not give it the expected efficiency in terms of sound absorption.
- the invention aims to overcome this disadvantage.
- the invention proposes a method of manufacturing an acoustic protection panel for a motor vehicle, said method comprising the following steps:
- a complex comprising a porous fiber-based backing layer, an intermediate layer based on recycled material and a porous location layer, said complex comprising a thermoplastic binder, • heating said complex to melting temperature of said binder,
- At least one weakly compressed area of high absorption so as to confer acoustic absorption properties on said location layer, the total minimum percentage of the area being slightly compressed being 40% of the area of said location layer, said zone having a thickness of between 4 and 10 mm, said thickness being measured according to standard NF EN ISO 5084 with a presser foot of surface 2000 +/- 20 mm 2 under a pressure of 1 +/- 0.1 kPa,
- At least one highly compressed zone of low absorption said zone having a thickness of between 1 and 3 mm, said thickness being measured according to the NF EN ISO 5084 standard with a presser foot with a surface area of 2000 +/- 20 mm 2 under one pressure of 1 +/- 0.1 kPa.
- the possible existence of at least one zone of weak absorption is linked to the fact that it may be necessary to compress the local layer locally, the compression of said layer being made for example at its periphery, at the periphery of orifices. provided to allow the passage of organs, or to allow the housing of the panel in areas where the reception space of said panel is reduced.
- the location layer may, for certain specific embodiments, not have a highly compressed zone, all of its surface then forming a zone of high absorption.
- the ground material recycled can bring the mass on the sealing barrier to achieve sound insulation according to a "mass-spring" principle.
- the invention proposes a panel obtained by such a method.
- a method of manufacturing a panel 1 acoustic protection for a motor vehicle comprising the following steps: Producing a complex comprising a fiber-based porous backing layer 2, an intermediate layer 3a, 3b based on recycled material and a porous location layer 4, said complex comprising a thermoplastic binder,
- reaction injection molding mold Disposing said shell in a reaction injection molding mold (RIM) defining a molding cavity, said backing layer being turned towards said cavity, a space being left vacant between said backing layer and a wall of said cavity,
- RIM reaction injection molding mold
- the location layer may, for certain specific embodiments and not shown, not have a highly compressed zone, the entire surface then forming a zone of strong absorption.
- the place layer 4 has on the panel 1 a resistance to the passage of air, measured according to ISO 9053 / method B by AC flow:
- the location layer 4 is based on flakes of elastically compressible foam bonded together by binding fibers as defined above.
- the intermediate layer 3a, 3b has a weight per unit area of between 500 and 1500 g / m 2 .
- the intermediate layer 3a, 3b is based on: Thermoplastic elastomer loaded with a mineral powder,
- the intermediate layer 3a, 3b is put in place by dusting the ground material of recycled material.
- the backing layer 2 has a basis weight of between 50 and 200 g / m 2 .
- the backing layer 2 has a thickness of less than 2 mm.
- the backing layer 2 is a nonwoven.
- the layers 2,3a, 3b, 4 of the complex are associated with each other by needling and / or bonding by means of the at least partial melting of the intermediate layer 3a, 3b.
- the complex is made so as to present in front view:
- At least one light zone 8 of low acoustic protection said light zone:
- a second intermediate layer 3b made of recycled material millbase disposed between said top and bottom layers, said second layer having a lower basis weight than said first layer - here because of of a smaller thickness - so as to form a light zone of the first type, Or, according to an embodiment not shown, being devoid of intermediate layer, said place and back layers being disposed one in contact with the other, so as to form a light zone of second type.
- the foam penetrates the shell on a fraction less than 25% of its thickness.
- a three-dimensional shell comprising a fiber-based porous backing layer 2, an intermediate layer 3a, 3b based on recycled material and a porous location layer 4, said location layer comprising a thermoplastic binder, said place layer having on said panel a mass per unit area of between 500 and 2000 g / m 2 , said place layer further comprising:
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Textile Engineering (AREA)
- Multimedia (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1652992A FR3049752B1 (fr) | 2016-04-05 | 2016-04-05 | Procede de fabrication d’un panneau de protection acoustique pour vehicule automobile |
| PCT/FR2017/050772 WO2017174913A1 (fr) | 2016-04-05 | 2017-04-03 | Procédé de fabrication d'un panneau de protection acoustique pour véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3440667A1 true EP3440667A1 (fr) | 2019-02-13 |
Family
ID=56087404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17721768.4A Withdrawn EP3440667A1 (fr) | 2016-04-05 | 2017-04-03 | Procédé de fabrication d'un panneau de protection acoustique pour véhicule automobile |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10909960B2 (fr) |
| EP (1) | EP3440667A1 (fr) |
| JP (1) | JP2019521039A (fr) |
| CN (1) | CN109313885A (fr) |
| BR (2) | BR112018070517A2 (fr) |
| FR (1) | FR3049752B1 (fr) |
| WO (1) | WO2017174913A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3088235B1 (fr) * | 2018-11-13 | 2021-01-22 | Faurecia Automotive Ind | Procede de fabrication d'un ensemble d'insonorisation de vehicule automobile et ensemble d'insonorisation associe |
| US20220111804A1 (en) * | 2019-02-08 | 2022-04-14 | Treves Products, Services & Innovation | Sound protection screen for a motor vehicle engine compartment |
| JP7564612B2 (ja) * | 2019-06-03 | 2024-10-09 | 寿屋フロンテ株式会社 | 車両用防音部材 |
| FR3097803B1 (fr) * | 2019-06-25 | 2021-07-16 | Treves Products Services & Innovation | Panneau de protection acoustique pour véhicule automobile |
| FR3111289B1 (fr) * | 2020-06-15 | 2022-09-02 | Treves Products Services & Innovation | Panneau insonorisant de garnissage intérieur de véhicule automobile |
| FR3114263B1 (fr) * | 2020-09-24 | 2022-11-11 | Treves Products Services & Innovation | Procédé de réalisation d’un panneau de protection acoustique pour véhicule automobile |
| US12358039B2 (en) | 2021-09-16 | 2025-07-15 | Amd Plastics, Llc | Method for manufacturing a bunk for a vehicle |
| CN113977991B (zh) * | 2021-11-16 | 2024-05-24 | 山东恒源兵器科技股份有限公司 | 一种碳纤维机翼内发泡成型方法 |
| FR3133782B1 (fr) * | 2022-03-24 | 2024-04-05 | Treves Products Services & Innovation | Procédé de fabrication d’un écran de protection acoustique pour compartiment à moteur de véhicule automobile |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2823357B1 (fr) * | 2001-04-10 | 2004-12-03 | Chenel Guy G | Ecran forme d'une surface souple tendue, notamment pour une installation exterieure recevant une impression |
| JP2006039379A (ja) * | 2004-07-29 | 2006-02-09 | Nishikawa Rubber Co Ltd | 遮音性シート |
| DE102007020832B4 (de) * | 2007-05-02 | 2009-02-26 | Bayer Materialscience Ag | Leichte, schallisolierende Verkleidung für ein Karosserieteil eines Kraftfahrzeuges und Verfahren zu deren Herstellung |
| FR2942437B1 (fr) * | 2009-02-20 | 2012-08-24 | Faurecia Automotive Ind | Ensemble d'insonorisation pour vehicule automobile et element de paroi associe. |
| EP2364881B1 (fr) * | 2010-03-09 | 2015-05-13 | Autoneum Management AG | Pièce de garniture d'automobile pour l'isolation sonore et l'absorption |
| CN103534750B (zh) * | 2011-03-09 | 2015-09-09 | 欧拓管理公司 | 汽车噪声衰减装饰部件 |
| FR2978288B1 (fr) * | 2011-07-18 | 2013-08-30 | Cera | Ecran de protection acoustique pour vehicule automobile |
| FR2979308B1 (fr) * | 2011-08-24 | 2013-09-27 | Faurecia Automotive Ind | Ensemble d'insonorisation, notamment pour un vehicule automobile |
| FR3004689B1 (fr) * | 2013-04-17 | 2015-06-05 | Cera | Panneau insonorisant de tablier de vehicule automobile |
| CN103774832B (zh) * | 2014-01-23 | 2016-01-20 | 浙江润阳新材料科技有限公司 | 一种隔音材料 |
| US9415728B2 (en) * | 2014-04-23 | 2016-08-16 | Hyundai Motor Company | Dash pad for vehicle |
-
2016
- 2016-04-05 FR FR1652992A patent/FR3049752B1/fr active Active
-
2017
- 2017-04-03 WO PCT/FR2017/050772 patent/WO2017174913A1/fr not_active Ceased
- 2017-04-03 BR BR112018070517A patent/BR112018070517A2/pt not_active IP Right Cessation
- 2017-04-03 EP EP17721768.4A patent/EP3440667A1/fr not_active Withdrawn
- 2017-04-03 US US16/091,739 patent/US10909960B2/en not_active Expired - Fee Related
- 2017-04-03 BR BR112018070535A patent/BR112018070535A2/pt not_active IP Right Cessation
- 2017-04-03 JP JP2019503790A patent/JP2019521039A/ja active Pending
- 2017-04-03 CN CN201780029767.9A patent/CN109313885A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN109313885A (zh) | 2019-02-05 |
| BR112018070517A2 (pt) | 2019-01-29 |
| JP2019521039A (ja) | 2019-07-25 |
| WO2017174913A1 (fr) | 2017-10-12 |
| US10909960B2 (en) | 2021-02-02 |
| US20190096381A1 (en) | 2019-03-28 |
| FR3049752B1 (fr) | 2018-05-11 |
| FR3049752A1 (fr) | 2017-10-06 |
| BR112018070535A2 (pt) | 2019-02-12 |
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