DE1115432B - Porous sound absorbing plate and process for its manufacture - Google Patents
Porous sound absorbing plate and process for its manufactureInfo
- Publication number
- DE1115432B DE1115432B DEM33309A DEM0033309A DE1115432B DE 1115432 B DE1115432 B DE 1115432B DE M33309 A DEM33309 A DE M33309A DE M0033309 A DEM0033309 A DE M0033309A DE 1115432 B DE1115432 B DE 1115432B
- Authority
- DE
- Germany
- Prior art keywords
- sound absorbing
- absorbing plate
- layers
- plastic
- plate according
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 title claims 3
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000006260 foam Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000007799 cork Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000008262 pumice Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 230000001464 adherent effect Effects 0.000 claims 1
- 239000000975 dye Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 23
- 239000011358 absorbing material Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000002557 mineral fiber Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009747 swallowing Effects 0.000 description 1
Classifications
-
- 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
- E04B2001/8461—Solid slabs or blocks layered
Description
Poröse Schallschluckplatte und Verfahren zu ihrer Herstellung Poröse Schallschluckstoffe, zu denen auch Glas-oder andere Mineralfasern zählen, sind verhältnismäßig weich. Schallschluckplatten, die nur aus solchen Stoffen bestehen, können bisher nicht zur Wand- oder Deckenverkleidung verwendet werden, weil ihre poröse Oberfläche sehr leicht Staub aufnimmt und dadurch schnell verschmutzt. Außerdem sind derartige Platten stoßempfindlich und für dekorative Zwecke gänzlich ungeeignet.Porous sound absorbing panel and method for making it Porous Sound-absorbing substances, which also include glass or other mineral fibers, are proportionate soft. Sound-absorbing plates that consist only of such materials can so far cannot be used for wall or ceiling cladding because of their porous surface absorbs dust very easily and thus quickly becomes dirty. In addition, there are such Panels are sensitive to impact and completely unsuitable for decorative purposes.
Aus diesem Grunde werden bisher poröse Schallschluckstoffe entweder hinter festen luftdurchlässigen, z. B. gelochten Abdeckungen angebracht, oder in Plattenform gepreßter Schallschluckstoff wird mit einem luftdurchlässigen Überzug versehen. Es sind auch fabrikmäßig hergestellte mehrschichtige Schallschluckplatten bekanntgeworden. Eine solche Platte besteht beispielsweise aus einer starren Schale, hergestellt aus einem netzartigen Stoff, aus einer porösen Verkleidung und einer Füllung aus schallschluckendem Material. Bei einer anderen bekannten Einrichtung ist der eigentliche, aus einem Papierfilz bestehende Schallschluckstoff hinter einer flexiblen plastischen Schicht angeordnet. Weiterhin ist es bekannt, zu Platten verpreßten porösen Schallschluckstoff mit einem schalldurchlässigen Überzug zu versehen, der aus einer gelochten Folie oder einem Gewebe oder einem Überzug besteht, der auf einer geeigneten Vorrichtung mit Löchern oder Poren versehen wird. Es ist auch bekannt, derartige Platten durch Überspritzen mit einem dünnen schalldurchlässigen Überzug zu versehen. Aus dem gleichen Grunde hat man auch die Oberfläche solcher Platten mit leimgebundenen Farblösungen bespritzt. Die beschriebenen Maßnahmen mildern die angegebenen Nachteile nur bedingt und setzen vielfach die Schallschluckf'ähigkeit herab.For this reason, previously porous sound-absorbing materials are either behind solid air-permeable, z. B. perforated covers attached, or in Plate-shaped pressed sound-absorbing material is covered with an air-permeable cover Mistake. They are also factory made multilayer sound absorbing panels known. Such a plate consists, for example, of a rigid shell, made of a net-like fabric, a porous lining and a Filling made of sound-absorbing material. At another known facility is the actual sound-absorbing material behind a felt consisting of a paper felt flexible plastic layer arranged. It is also known to press plates to provide porous sound-absorbing material with a sound-permeable coating that consists of a perforated film or a fabric or a cover that on a suitable device is provided with holes or pores. It is also known such panels by overmolding with a thin, sound-permeable coating to provide. For the same reason one also has the surface of such plates splashed with glue-bound color solutions. The measures described mitigate the specified disadvantages only to a limited extent and often set the sound absorption capacity down.
Zur Vermeidung dieser Nachteile besteht eine poröse Schallschluckplatte aus zwei Schichten, erfindungsgemäß aus einer verhältnismäßig grobporigen Unterschicht und einer harten, feinporigen Deckschicht.To avoid these disadvantages, there is a porous sound-absorbing plate from two layers, according to the invention from a relatively coarse-pored sub-layer and a hard, fine-pored top layer.
Die grobporige Unterschicht und die feinporige Deckschicht bestehen vorteilhaft aus verschieden großen, festen oder plastischen, selbst luftundurchlässigen Teilchen, vorzugsweise aus Körnern, Spänen oder Fasern, die; im wesentlichen nur an ihren gegenseitigen Berührungspunkten haftend, miteinander verbunden sind.The coarse-pored lower layer and the fine-pored top layer exist advantageously made of different sizes, solid or plastic, even air-impermeable Particles, preferably of grains, chips or fibers, which; essentially only adhering to their mutual points of contact, are connected to one another.
Diese Teilchen können aus Sand, Bimsstein, Schlacke, Glas, Metall, Kunststoff, gegebenenfalls Schaumkunststoff oder Kunststoffflocken, Kork oder Holz usw. bestehen. An Steile des körnigen oder spanförmigen Materials können auch schichtweise Fasermaterialien verwendet werden, beispielsweise Mineralfasern, wie Glasfasern oder Steinwolle; es kann aber auch schichtweise Schaumkunststoff mit verschiedener Porigkeit verwendet werden.These particles can consist of sand, pumice stone, slag, glass, metal, Plastic, possibly foam plastic or plastic flakes, cork or wood etc. exist. On steep of the granular or chip-shaped material can also be used in layers Fiber materials are used, for example mineral fibers such as glass fibers or rock wool; But it can also be made of foam plastic with different layers Porosity can be used.
Die neue Schallschluckplatte besteht demnach aus zwei Schichten mit verschieden großen Lufträumen, deren Größe sich an der Berührungsfläche der beiden Schichten sprunghaft ändert; damit ändert sich auch der Schallschluckgrad der beiden Schichten an dieser Stelle sprunghaft.The new sound absorbing plate therefore consists of two layers air spaces of different sizes, the size of which depends on the contact area of the two Layers changes by leaps and bounds; this also changes the degree of sound absorption of the two Layers at this point by leaps and bounds.
Es handelt sich bei der neuen Schallschluckplatte im allgemeinen um zwei Schichten mit verschiedenen Eigenschaften, aber aus annähernd gleichem Material, dabei unterscheidet sich die Deckschicht von der Unterschicht nur durch die Größe der Poren. Die grobporige Unterschicht ist im allgemeinen weicher als die feinporige und harte Deckschicht.It is in the new sound absorbing plate in general two layers with different properties, but made of approximately the same material, The only difference between the top layer and the bottom layer is the size the pores. The coarse-pored lower layer is generally softer than the fine-pored and hard top layer.
Die neue Schallschluckplatte hat gegenüber den bekannten Platten mit aufgebrachten Überzügen den Vorteil, daß die Deckschicht hart und damit riesel-und abriebfest ist. Dadurch ist eine sehr gute mechanische Festigkeit gegeben. Durch die feinporige Deckschicht wird der Schluckgrad der ganzen Platte verbessert, weil eine Erhöhung des Strömungswiderstandes erfolgt. Für die Platte ist ein Strömungswiderstand erwünscht, der etwa gleich dem Strömungswiderstand der Luft ist. Bei Schaumkunststoffplatten, deren Strömungswiderstand vielfach zu hoch liegt, ergibt sich durch die harte Deckschicht aus Kunstschaumstoff mit feinporiger Struktur eine Herabsetzung des Strömungswiderstandes auf optimale Werte. Schaumkunststoffplatten ohne eine harte, feinporige Deckschicht zeigen nämlich bei Schalleinfall an der Oberfläche ein Mitschwingen, das den Strömungswiderstand unerwünscht heraufsetzt.The new sound absorbing plate has compared to the known plates with Applied coatings have the advantage that the top layer is hard and therefore free-flowing and is abrasion resistant. This gives very good mechanical strength. By The fine-pored top layer improves the swallowing rate of the entire plate because there is an increase in the flow resistance. There is a flow resistance for the plate desirable, which is approximately equal to the flow resistance of the air. For foam plastic panels, the flow resistance of which is often too high is the result of the hard top layer made of synthetic foam with a fine-pored structure, a reduction in flow resistance on optimal Values. Foam plastic sheets without a hard, fine-pored The surface layer shows a resonance when sound is incident on the surface, which undesirably increases the flow resistance.
Nach der Erfindung können alle körnigen oder faserigen Materialien, auch solche, die an sich zur Schalldämpfung wenig geeignet sind und deren Oberfläche architektonisch nicht schön und nicht abriebfest ist, mit einer harten, feinporigen Deckschicht versehen werden.According to the invention, all granular or fibrous materials, even those that are not very suitable for soundproofing and their surface architecturally not beautiful and not resistant to abrasion, with a hard, fine-pored structure Top layer are provided.
Die Verbindung der einzelnen Körner der Unterschicht und der Deckschicht läßt sich sowohl durch Klebung als auch durch Sinterung erreichen.The connection of the individual grains of the lower layer and the top layer can be achieved both by gluing and by sintering.
Falls erwünscht, kann die Deckschicht auch beliebig gefärbt werden.If desired, the top layer can also be colored as desired.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM33309A DE1115432B (en) | 1953-06-06 | 1953-06-06 | Porous sound absorbing plate and process for its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM33309A DE1115432B (en) | 1953-06-06 | 1953-06-06 | Porous sound absorbing plate and process for its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1115432B true DE1115432B (en) | 1961-10-19 |
Family
ID=7301737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM33309A Pending DE1115432B (en) | 1953-06-06 | 1953-06-06 | Porous sound absorbing plate and process for its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1115432B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2592669A1 (en) * | 1986-01-03 | 1987-07-10 | Jean Claude Nony | Composite unit for acoustic insulation |
| FR2597529A2 (en) * | 1986-01-03 | 1987-10-23 | Jean Claude Nony | Composite unit for acoustic insulation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2217165A (en) * | 1939-01-05 | 1940-10-08 | Bird & Son | Sound-deadening material |
| US2285423A (en) * | 1937-08-10 | 1942-06-09 | Esser Wilhelm | Sound absorbing material |
-
1953
- 1953-06-06 DE DEM33309A patent/DE1115432B/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2285423A (en) * | 1937-08-10 | 1942-06-09 | Esser Wilhelm | Sound absorbing material |
| US2217165A (en) * | 1939-01-05 | 1940-10-08 | Bird & Son | Sound-deadening material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2592669A1 (en) * | 1986-01-03 | 1987-07-10 | Jean Claude Nony | Composite unit for acoustic insulation |
| FR2597529A2 (en) * | 1986-01-03 | 1987-10-23 | Jean Claude Nony | Composite unit for acoustic insulation |
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