DE1021289B - Process for the production of sound absorbing plates - Google Patents

Process for the production of sound absorbing plates

Info

Publication number
DE1021289B
DE1021289B DEA23016A DEA0023016A DE1021289B DE 1021289 B DE1021289 B DE 1021289B DE A23016 A DEA23016 A DE A23016A DE A0023016 A DEA0023016 A DE A0023016A DE 1021289 B DE1021289 B DE 1021289B
Authority
DE
Germany
Prior art keywords
synthetic resin
production
sound absorbing
heat
absorbing plates
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
Application number
DEA23016A
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GERRESHEIMER GLASHUETTENWERKE
Original Assignee
GERRESHEIMER GLASHUETTENWERKE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GERRESHEIMER GLASHUETTENWERKE filed Critical GERRESHEIMER GLASHUETTENWERKE
Priority to DEA23016A priority Critical patent/DE1021289B/en
Publication of DE1021289B publication Critical patent/DE1021289B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/22—Corrugating
    • B29C53/24—Corrugating of plates or sheets
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • B29K2105/128—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles in the form of a mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0001—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties
    • B29K2995/0002—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties insulating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)

Description

Verfahren zum Herstellen von Schallschluckplatten Die Erfindung bezieht sich auf ein Verfahren zum Herstellen von aus mehreren untereinander verl) undenen Lagen hestehenden plattenförmigen Erzeugnissen aus Glasfasern. wie sie vornehmlich als Schallschluckplatten Verwendung finden. Derartige aus anorganibuchen Fasern bestehende Schallschluckplatten werden hisher in der Weise hergestellt, daß mehrere aus Glasfasern gebildete dünnschichtige Vliese mit einem aushärtbares Kunstharz enthaltenden Bindemittel besprüht oder getränkt. anschließend ühereinandergelegt und dann nach Durchführung durch Druckwalzen. die die einzelnen Bahnen in innige Berührung und die gesamte Schicht auf die gewünschte Stärke bringen. durch einen Trockenofen geführt werden, in dem zunächst die mit dem Bindemittel in die Faserschichten eingetragene Feuchtigkeit entfernt und anschließend die einzelnen Bahnen unter Aushärtung des Kunstharzes miteinander verklebt werden.Method of making sound absorbing panels The invention relates to relate to a process for the production of several interrelated ones Sheets of sheet-like products made of glass fibers. like them primarily find use as sound absorbing plates. Such made of inorganic beech fibers existing sound-absorbing plates are manufactured in such a way that several Thin-layer nonwovens made of glass fibers with a curable synthetic resin containing binders sprayed or soaked. then laid one on top of the other and then after passing through pressure rollers. which the individual tracks in intimate Touch and bring the entire layer to the desired thickness. through a Drying oven are carried out in which first the with the binder in the fiber layers removed moisture and then the individual strips with curing of the synthetic resin are glued together.

Bei diesem Verfahren hat sich der Nachteil ergeben. daß vor Beginn des Aushärteprozesses häufig die Feuchtigkeit noch nicht in genügendem Maße, insbesonderer nicht in alen Teilen der Schicht glichmäßig entfernt ist mit der Folge, daß die Bindung zwischen dem Kunstharz und den Fasern nicht innig genug ist, so daß die Platten später wieder in einzelne Schichten zerfallen oder sich Blasen zwischen den einzelnen Schichten bilden. This method has had the disadvantage. that before beginning During the hardening process, the moisture is often not yet sufficient, in particular is not evenly removed in all parts of the layer, with the result that the Bond between the synthetic resin and the fibers is not intimate enough, so that the Plates later disintegrate into individual layers or there are bubbles between them the individual layers.

Gegenstand der Erfindung ist ein Verfahren zum hrstellen von mehrschitigen Schallschlukplatten, bei denen diese Nachteile vermieden und soweohl die Fasern der einzelnen Schichten wie auch die einzelnen Schichten untereinander sicher verbunden sind. Dies wird dadurch erreicht, daß den einzelnen mit Kunstharz enthaltendem Bindemittel versehenen Vliesbahnen vor ihrem Zusammenfügen mit anderen Bahnen durch Anwendung von Wärme vorzgusweise bei Temperaturen von 60 bis 80°C, die Bindemittelflüssigkeit weitgehende entzogen wird, Auf diese Wiese geht die Beseitigung der überschüssigen Feuchtigkeit wesentlich schneller vor sich. als wenn die Vliese in mehreren Lagen übereinanderliegen. vor allem aber läßt sich eine gleichmäßigere Entfernung in allen zu verbindenden Schichten erreichen. als wenn die zum Trocknen anzuwendende Wärme auf eine dicke, mehralgie Schicht zur Einwirkung gebracht wird, Die so vorgetrockneten Vlieshahnen werden alsdann in üblicher Weise geschichtet und entweder in Bandform oder nach vorherigem Auftrennen in einzelne Tafeln unter Anwendung von Druck und Wärme aufeinandergedrückt und dabei zugleich die mehrlagige Schicht auf die gewünschte Gesamtsärke gebrahct und die Einzelen Lagen durch Aushären des Kunstahrzes miteinander verbunden. Durch Verwendung einer Unterlage mit welliger oder sonstwie uneben gestalteter Oberfläche und gegebenenfalls eines ebensolchen Preßstempels kann dabei der Platte auf einer Seite oder auf beiden Seiten eine vergrößerte Oberfläche verliehen werden. The invention relates to a method for producing multi-step Sound-absorbing panels in which these disadvantages are avoided, as are the fibers of the individual layers as well as the individual layers are securely connected to one another are. This is achieved in that the individual with synthetic resin-containing binder provided nonwoven webs prior to their joining with other webs by application of heat preferably at temperatures of 60 to 80 ° C, the binder liquid is largely withdrawn, in this way the elimination of the excess goes Moisture in front of you much faster. as if the fleece in several layers lie on top of each other. but above all, a more even distance can be found in all layers to be connected. as if the heat to be applied for drying applied to a thick, multi-algae layer, the so pre-dried Fleece taps are then layered in the usual way and either in tape form or after prior separation into individual sheets using pressure and Heat pressed together and at the same time the multi-layer layer on the desired Total thickness braked and the individual layers by hardening the synthetic resin together tied together. By using a surface that is wavy or otherwise uneven Surface and, if necessary, such a press ram can be the plate an enlarged surface can be given on one side or on both sides.

Die Anwendung des den Gegenstand der Erfindung bildenden Verfahrens gewährt den weiteren besonderen Vorteil, daß auf leicht zu überwanchede Weise eine genau Einstellung der in die dünnen Vlieslagen eingeführten Kunstharzmenge erfolgen und damit der fertigen Platte eine bestimmte Porosität verliehen werden kann. The application of the process forming the subject of the invention grants the further special advantage that a precise adjustment of the amount of synthetic resin introduced into the thin fleece layers and so that the finished plate can be given a certain porosity.

Claims (1)

PATENTANSPRUCH Verfahren zum Herstellen von Schal lchlnckplatten u. dgl. aus einer Nfehrzahl übereinandergeschichteter, durch ein aushärtbares Kunstharz verhundener Vliesbahnetl aus anorgallischen Fasern, dadurch gekennzeichnet, daß den einzelnen mit dem das Kunstharz enthaltenden Bindemittel versehenen Bahnen vor ihrem Zusammenfügen die mit dem Bindemittel eingebrachte Feuchtigkeit druch Wärmeanwendung weitgebhd entzogen und anschlißend die so vorgetrockenten Bahnen aufeiedergeschintet und in bekannter Weise durch Anwenhdug von Dricuk dun Wärme unter Aushärten des Kunstharzes miteinander verbunden und gegebenenfalls verdichtet werden. PATENT CLAIM Process for the production of shuttering panels and the like from a plurality of superimposed layers by means of a hardenable synthetic resin connected fleece web made of inorganic fibers, characterized in that the individual webs provided with the binder containing the synthetic resin When they are joined together, the moisture brought in with the binding agent through the application of heat largely withdrawn and then the so pre-dried strips are chopped up and in a known manner by applying Dricuk dun heat with hardening of the Synthetic resin are connected to one another and, if necessary, compacted. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 812 610 Documents considered: German Patent No. 812 610
DEA23016A 1955-07-07 1955-07-07 Process for the production of sound absorbing plates Pending DE1021289B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA23016A DE1021289B (en) 1955-07-07 1955-07-07 Process for the production of sound absorbing plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA23016A DE1021289B (en) 1955-07-07 1955-07-07 Process for the production of sound absorbing plates

Publications (1)

Publication Number Publication Date
DE1021289B true DE1021289B (en) 1957-12-19

Family

ID=6925332

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA23016A Pending DE1021289B (en) 1955-07-07 1955-07-07 Process for the production of sound absorbing plates

Country Status (1)

Country Link
DE (1) DE1021289B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE812610C (en) * 1950-03-18 1951-09-03 Dynamit Nobel Ag Method and device for the continuous provision of nonwovens with pulverulent binders

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE812610C (en) * 1950-03-18 1951-09-03 Dynamit Nobel Ag Method and device for the continuous provision of nonwovens with pulverulent binders

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