BE550597A - - Google Patents
Info
- Publication number
- BE550597A BE550597A BE550597DA BE550597A BE 550597 A BE550597 A BE 550597A BE 550597D A BE550597D A BE 550597DA BE 550597 A BE550597 A BE 550597A
- Authority
- BE
- Belgium
- Prior art keywords
- resin
- emi
- plates
- glass wool
- wool
- Prior art date
Links
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 239000011491 glass wool Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000004640 Melamine resin Substances 0.000 claims description 2
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 229920001225 polyester resin Polymers 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- 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
- G10K11/165—Particles in a matrix
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Description
Il est connu pour absorber les sons, d'utiliser des plaques poreuses ou des plaques lisses perforées ou non , dispo-
<EMI ID=1.1>
d'air . Cet intervalle d'air est , le plus souvent , complètem.ent ou partiellement rempli d'une masse absorbant les sons , par exemple sous forme de laine minérale ou de laine de verre .
On connaît en outre le montage en lames vibrantes de' plaques minces composées de plusieurs couches ou nappes de matière inorganiqu e en particulier des nappes de fibres de verre . Cependant ces plaques offrent l'inconvénient de ne pas avoir la rigidité nécessaire pour constituer des revêtements de parois et de plafonds se soutenant seuls .
La présente invention prévoit l'emploi de plaques minces (notamment de moins de 5mm d'épaisseur) faites en fibres mi-nérales , notamment en laine de verre ,. et en résine artificielle durcissable , comprimées à chaud , destinées à constituer des panneaux vibrants absorbant le son . Des plaques minces d'environ 3mm d'épaisseur et moins , ainsi constituées , remplissent les conditions nécessaires à l'exécution de revêtements se soutenant seuls et peuvent par conséquent servir comme éléments de construction indépendants .
On peut utiliser en particulier de la résine mélamine , une résine vinylique ou des résines polyesters . La quantité de résine peut être de préférence de 65% en poids .
Les fibres utilisées ont de préférence un diamètre
<EMI ID=2.1>
.M'effet rigidifiant des fibres de verre permet d'atteindre avec une porosité élevée , un poids de plaque réduit pou- <EMI ID=3.1>
plaques peut être réglée de façon qu'avec un poids de plaque réduit et un garnissage de l'espace d'air situé derrière avec une matière absorbant les sons , par exemple de la laine de verre , <EMI ID=4.1> seur totale de la couche amo�tisseuse constituée par l'espace situé derrière la plaque est' 'dans ce cas , inférieure à 10 cm .
Comme la plaque;; en tant qu'élément de construction
<EMI ID=5.1>
'1
se trouvant entre elle et le,plafond ou laparoi , il s'établit ici une fréquence de résonance qui peut être située dans la zone des basses fréquences . Au voisinage de cette fréquenc e de résonanc e apparaissent , cornue on le sait , des valeurs d'absorption particulièrement favorables,mais qui ne décroissent pas vers les hautes fréquences . Notaient , la résistance acoustique des plaques peut se régler de façon à correspondre à la résistance acoustique d'une couche absorbante fibreuse non comprimée et occupant une épais-
<EMI ID=6.1>
<EMI ID=7.1>
ce d'air , ont un effet d'absorption qui ne s'écarte qu'insensiblement de celui des masses de fibres lâches, mais elles ont , sur ces dernières , l'avantage de pouvoir être employées cornue éléments de construction se soutenant seuls et dont la surface résiste à la fatigue .
<EMI ID=8.1>
1.- Une plaque pour absorber les sons , auto-portante , réalisée à l'aide de laine de verre ou laine minérale artificielle durcissable et application de pression et de chaleur , en épais-
<EMI ID=9.1>
2.- Comme élément ' de construction auto-portant , une
It is known to absorb sound, to use porous plates or smooth plates, perforated or not, available.
<EMI ID = 1.1>
of air. This air gap is most often completely or partially filled with a sound absorbing mass, for example in the form of mineral wool or glass wool.
In addition, the assembly in vibrating blades of 'thin plates composed of several layers or sheets of inorganic material, in particular sheets of glass fibers, is known. However, these plates have the drawback of not having the rigidity necessary to constitute wall and ceiling coverings which are supported on their own.
The present invention provides for the use of thin plates (in particular less than 5mm thick) made of mi-neral fibers, in particular glass wool. and curable artificial resin, hot pressed, intended to constitute vibrating panels absorbing sound. Thin plates of approximately 3mm thickness and less, thus constituted, fulfill the conditions necessary for the execution of self-supporting coatings and can therefore serve as independent construction elements.
In particular, melamine resin, vinyl resin or polyester resins can be used. The amount of resin may preferably be 65% by weight.
The fibers used preferably have a diameter
<EMI ID = 2.1>
The stiffening effect of glass fibers makes it possible to achieve, with high porosity, a reduced plate weight for <EMI ID = 3.1>
plates can be adjusted so that with reduced plate weight and lining the air space behind with sound absorbing material, for example glass wool, <EMI ID = 4.1> total the amo � weaving layer formed by the space behind the plate is in this case less than 10 cm.
Like the plate ;; as a construction element
<EMI ID = 5.1>
'1
lying between it and the ceiling or the wall, a resonant frequency is established here which can be located in the low frequency region. In the vicinity of this resonance frequency appear, as we know, particularly favorable absorption values, but which do not decrease towards high frequencies. Note, the acoustic resistance of the plates can be adjusted to match the acoustic resistance of an uncompressed fibrous absorbent layer occupying a thick-
<EMI ID = 6.1>
<EMI ID = 7.1>
this air, have an absorption effect which deviates only imperceptibly from that of the masses of loose fibers, but they have, over the latter, the advantage of being able to be used as building elements supporting each other and whose surface resists fatigue.
<EMI ID = 8.1>
1.- A sound-absorbing plate, self-supporting, made with the aid of glass wool or artificial mineral wool which can be hardened and application of pressure and heat, in thick-
<EMI ID = 9.1>
2.- As a self-supporting construction element, a
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1159735X | 1955-08-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE550597A true BE550597A (en) |
Family
ID=7728281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE550597D BE550597A (en) | 1955-08-26 |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE550597A (en) |
FR (1) | FR1159735A (en) |
-
0
- BE BE550597D patent/BE550597A/fr unknown
-
1956
- 1956-08-24 FR FR1159735D patent/FR1159735A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1159735A (en) | 1958-07-01 |
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