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DE3308585A1 - Plate and method for its manufacture - Google Patents

Plate and method for its manufacture

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Publication number
DE3308585A1
DE3308585A1 DE19833308585 DE3308585A DE3308585A1 DE 3308585 A1 DE3308585 A1 DE 3308585A1 DE 19833308585 DE19833308585 DE 19833308585 DE 3308585 A DE3308585 A DE 3308585A DE 3308585 A1 DE3308585 A1 DE 3308585A1
Authority
DE
Germany
Prior art keywords
plaster
top layer
layer material
paris
plate
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.)
Ceased
Application number
DE19833308585
Other languages
German (de)
Inventor
Thomas 3252 Bad Münder Beyer
Günter Dipl.-Holzw. 3257 Springe Bücking
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.)
Baehre & Greten
Bison Werke Baehre and Greten GmbH and Co KG
Original Assignee
Baehre & Greten
Bison Werke Baehre and Greten GmbH and Co KG
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 Baehre & Greten, Bison Werke Baehre and Greten GmbH and Co KG filed Critical Baehre & Greten
Priority to DE19833308585 priority Critical patent/DE3308585A1/en
Publication of DE3308585A1 publication Critical patent/DE3308585A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/02—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material with fibres or particles being present as additives in the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
    • 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
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B13/08—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • 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
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B13/12—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance 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
    • 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
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/04—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material
    • B32B19/048—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material made of particles
    • 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
    • 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
    • B32B5/022—Non-woven fabric
    • 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
    • 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
    • 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
    • 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
    • B32B5/18—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 of foamed material
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/16—Waste materials; Refuse from building or ceramic industry
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/026—Porous
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/06—Concrete
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/10—Mica
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/18—Plaster
    • 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
    • B32B2318/00—Mineral based
    • B32B2318/04—Stone
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)

Abstract

The plate consists of a base layer of gypsum, lignocellulose- and/or cellulose-containing and/or inorganic particles (base-layer material) and of at least one cover layer of gypsum and filler (cover-layer material). The cover-layer material contains, at least in part, crushed waste material, obtained upon the manufacture of gypsum-bonded boards, which is uniformly distributed therein.

Description

Die Erfindung betrifft eine Platte gemäß dem OberbegriffThe invention relates to a plate according to the preamble

des Anspruchs 1 sowie ein Verfahren zum Herstellen einer solchen Platte.of claim 1 and a method for producing such a plate.

Es ist bekannt, daß gattungsgemäße Platten beispielsweise als Verkleidungs-, Dekorations- und Isolierplatten im Innenausbau, Fertighausbau, bei der industriellen Vorfertigung von Wandelementen sowie im Möbelbau ein breites Anwendungsgebiet finden, so sie die hierfür erforderlichen Gebrauchseigenschaften besitzen. Eine wesentliche Gebrauchs eigenschaft ist dabei die Oberflächengüte der Platte in Bezug auf Härte, Sprödigkeit, Rißbeständigkeit und Porig- -keit. So sind Platten mit ausschließlich Gips enthaltenden Deckschichten hart und spröde, also auch ungenügend abriebfest, was die Rißbildung in den Deckschichten begünstigt, beim Sägen, Bohren, Fräsen, Feilen, Hobeln, Nageln und Schrauben Ausrisse und sogar Ausbrüche verursachen und bei der Handhabung der Platte zu sehr unerwünschten Kantenbeschädigungen führen kann.It is known that generic panels, for example, as cladding, Decorative and insulating panels in interior construction, prefabricated house construction, in industrial applications Prefabrication of wall elements as well as in furniture construction find a wide range of applications, so they have the necessary properties for use. An essential one The usage characteristic is the surface quality of the plate in terms of hardness, Brittleness, crack resistance and porosity. So are plates with exclusively Top layers containing gypsum are hard and brittle, i.e. also insufficiently abrasion-resistant, what favors the formation of cracks in the surface layers, when sawing, drilling, milling, Files, planes, nails and screws cause tears and even breakouts lead to very undesirable edge damage when handling the panel can.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Platte mit wesentlich verbesserter Oberflächenqualität sowie ein Verfahren zur Herstellung einer solchen Platte zu schaffen, welches besonders wirtschaftlich ist.The invention is based on the object of a generic plate with significantly improved surface quality and a method for manufacturing to create such a plate, which is particularly economical.

Diese Aufgabe wird erfindungsgemäß durch den Gegenstand des Sach- und Verfahrenshauptanspruchs gelöst.This object is achieved according to the invention by the subject matter and process main claim solved.

Damit wird ein typisches und recht billiges Abfallmaterial einer sinnvollen Verwendung zugeführt, in der es nicht nur seinen Charakter als geringwertiger Füllstoff verliert, sondern in Form einer aufbereiteten Feststoffmischung aus Dihydrat-Beschleuniger und lignozellulose- und/oder zellulose ~ haltigen Teilchen zu einem erheblich verbesserten Veredelungsgrad des Endproduktes führt. Aufgrund dessen und in Folge der homogenen Verteilung der zerkleinerten Deckschichtgutteilchen ergeben sich gleichmäßige, völlig geschlossene, glatte, harte sowie längs- und querzugfeste Deckschichten, die sehr abriebfest, weitgehend spannungsfrei und praktisch rißbeständig sind. Werden diese Deckschichten veredelt, also zum Beispiel lackiert oder mit Dekorpapieren, Kunststoff- -Folien-Furnieren oder dergleichen beschichtet, so ist hierzu nur ein verhältnismäßig geringer Lack- bzw. Klebstoffverbrauch erforderlich, so daß sich auch insoweit eine wirtschaftlichere Oberflächenveredelung erzielen läßt.This makes a typical and quite cheap waste material a useful one Use fed in which it is not only its character as inferior Filler loses, but in the form of a prepared solid mixture of dihydrate accelerators and lignocellulose- and / or cellulose-containing particles to a considerably improved Degree of refinement of the end product leads. Because of this and as a result of the homogeneous Distribution of the comminuted top layer material results in a completely uniform and complete manner closed, smooth, hard and longitudinal and transverse tensile strength outer layers that are very are abrasion-resistant, largely tension-free and practically crack-resistant. Will this Top layers refined, for example painted or with decorative paper, plastic -Film veneers or the like coated, this is only a proportion low paint or adhesive consumption required, so that a more economical surface finishing can be achieved.

Nachdem beim Herstellungsverfahren die Teilchen des Basisschichtgutes mit Abbindewasser für die gesamte Gipsmenge des Vlieses versetzt sind, kann insbesondere die untere, trockene und inaktive Deckschicht des Vlieses beliebig weit vom Presseneinlauf auf die Unterlage aufgebracht werden, ohne daß Abbindestörungen hervorgerufen werden, denn der Dihydrat-Beschleuniger im Deckschichtgut wird erst während des l'reßvorganges aktiv, indem Abbindewasser bis nahe an bzw. in die Oberflächen des entstehenden Plattenstranges gelangt. Überraschenderweise ist es dadurch möglich, den Wassergipswert zu verringern.After in the manufacturing process the particles of the base layer material are mixed with setting water for the entire amount of gypsum of the fleece, in particular the lower, dry and inactive cover layer of the fleece at any distance from the press inlet be applied to the base without causing binding problems, because the dihydrate accelerator in the top layer material is only activated during the drying process active by adding setting water up close to or in the surfaces of the emerging Plate strand arrives. Surprisingly, this makes it possible to determine the water gypsum value to reduce.

Eine besonders vorteilhafte Ausführungsform bei der Herstellungsform der gattungsgemäßen Platte sieht außerdem vor, den Grad der Oberflächengüte herzustellenden Platte durch den Wassergipswert zu variieren. Bei extrem niedrigem Wassergipswert (w Rs 0,2) enthält man zwar noch etwas kreidige Oberflächen, die aber sonst im wesentlichen über--wiegend hervorragende Gebrauchseigenschaften aufweisen, während bei hiervon nach oben abweichenden Wassergipswerten in jeder Beziehung einwandfreie Oberflächen gegeben sind.A particularly advantageous embodiment in the form of manufacture the generic plate also provides for the degree of surface quality to be produced The plate can be varied by the water gypsum value. With extremely low water gypsum value (w Rs 0.2) one still contains something chalky surfaces that but otherwise mainly have excellent performance properties, while in the case of water gypsum values deviating upwards from this, it is flawless in every respect Surfaces are given.

Zweckmäßige Ausgestaltungen und Weiterbildungen der Erfindung sind in den jeweiligen Unteransprüchen gekennzeichnet. Appropriate refinements and developments of the invention are characterized in the respective subclaims.

Nachfolgend wird die Erfindung an Hand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert, die eine oberflächenveredelte Platte im Querschnitt zeigt. The invention is illustrated below using one in the drawing Embodiment explained in more detail, the surface-finished plate in cross section shows.

Dargestellt ist im einzelnen eine gipsgebundene, symmetrisc und mehrschichtig aufgebaute Spanplatte 1. Den größten Teil der Platte nimmt die Basisschicht 2 ein. In dieser Schicht sind pulverförmiger Gips, Holzteilchen einer Länge bis ca. 10 mm, einer Breite bis ca. 1,5 mm und einer Dicke bis ca. 0,25 mm, gegebenenfalls Flugasche und Silikonteilchen homogen verteilt angeordnet. A plaster-bound, symmetrical and multilayered one is shown in detail built-up chipboard 1. The base layer 2 takes up most of the panel. In this layer there are powdered plaster of paris, wood particles up to a length of approx. 10 mm, a width up to approx. 1.5 mm and a thickness up to approx. 0.25 mm, if necessary Fly ash and silicone particles arranged homogeneously distributed.

An die Basisschicht 2 schließen sich beidseitig sowie symmetrisch zwei in sich veredelte Deckschichten 3 und 4 an. Diese Deckschichten bestehen aus pulverförmigem Frischgips sowie als Füllstoff bei der Herstellung gipsgebundener Platten anfallendem, bis zu Staub zerkleinerten Abfallteilchen und gegebenenfalls wie die Basisschicht aus Flugasche und Silikonteilchen. Zwecks weiterer Oberflächenveredelung ist die Platte 1 mit Klebstoffschichten 5 und 6 versehen, auf die Dekorfolien 7 und 8 aufgebracht sind. The base layer 2 is closed on both sides and symmetrically two refined cover layers 3 and 4 on. These top layers consist of fresh plaster of paris in powder form and as a filler in the manufacture of plaster-bound plaster of paris Waste particles that arise from plates and, where appropriate, have been crushed to dust like the base layer made of fly ash and silicone particles. For the purpose of further surface finishing the plate 1 is provided with adhesive layers 5 and 6 on the decorative foils 7 and 8 are applied.

Bei einer Basisdicke von 18 mm hat die erfindungsgemäße Platte folgende technologische Grundeigenschaften: Rohdichte 1100 - 1200 kgXm2 2 Std.-Quellung 2,0 - 3,0s Biegefestigkeit 8,0 - 10,0 N/mm Dimensionsänderung von Querzeugfestigkeit 0,4 - 0,5 N/mm Klima 20/30 aus 20/85 0,04 - 0,06 z - Leerseite -With a base thickness of 18 mm, the panel according to the invention has the following Basic technological properties: Density 1100 - 1200 kgXm2 2 hours swelling 2.0 - 3.0s flexural strength 8.0 - 10.0 N / mm dimensional change of cross-generation strength 0.4 - 0.5 N / mm climate 20/30 from 20/85 0.04 - 0.06 e.g. - blank page -

Claims (12)

Platte sowie Verfahren zu deren Herstellung ANSPRÜCHE Platte mit einer Basisschicht, bestehend aus Gips, lignozellulose- und/oder zellulosehaltige und/oder anorgvn-i-sche Teilchen (Basisschichtgut> , und mit wenigstens einer Deckschicht, bestehend aus Gips und Füllstoff (Deckschichtgut), d a d u r c h g e -k e n n z e i c h n e t , daß das Deckschichtgut zumindest zum Teil bei der Herstellung gipsgebundener Platten anfallendes, zerkleinertes sowie darin homogen verteiltes Abfallmaterial enthält. Plate and process for their production CLAIMS Plate with a base layer consisting of plaster of paris, lignocellulosic and / or cellulosic and / or inorganic particles (base layer material>, and with at least one Top layer, consisting of plaster of paris and filler (top layer material), d a d u r c h g e -k e n n n n z e i c h n e t that the top layer material is at least partially during manufacture Gypsum-bonded panels, crushed and homogeneously distributed therein Contains waste material. 2. Platte nach Anspruch 1, d a d u r c h g e k e n n -z e i c h n e t , daß das Deckschichtgut pulverförmigen Frischgips aufweist. 2. Plate according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the top layer material comprises fresh plaster of paris in powder form. 3. Platte nach Anspruch 2, d a d u r c h g e k e n n -z e i c h n e t , daß das Gewichtsverhältnis von zerkleinertem Abfallmaterial und pulverförmigen Frischgips im Deckschichtgut ca. 2:3, vorzugsweise 1:4 beträgt. 3. Plate according to claim 2, d a d u r c h g e k e n n -z e i c h n e t that the weight ratio of crushed waste material and powdery Fresh plaster of paris in the top layer is approx. 2: 3, preferably 1: 4. 4. Platte nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t , daß das Deckschicht und/oder Basisschichtgut mit feuerbeständigem Material wie Glimmer, Perlit, Flugasche oder dergleichen und/oder mit wasserbeständigem Material wie Silikon oder dergleichen und/oder mit mineralischen Fasern und/ode mit zerkleinertem Gasbeton, Blähglimmer, Schaum-oder Gesteinsglas verschnitten ist. 4. Plate according to one of claims 1 to 3, d a d u r c h g e k e It is not noted that the top layer and / or base layer material with fire-resistant Material such as mica, perlite, fly ash or the like and / or with water-resistant material such as silicone or the like and / or with mineral Fibers and / or with crushed aerated concrete, expanded mica, foam or rock glass is blended. 5. Platte nach einem der Ansprüche 1 bis 4, d a -d u r c h g e k e n n z e i c h n e t , daß das Abfallmaterial des Deckschichtgutes feinkörnig, vorzugsweise staubförmig ist. 5. Plate according to one of claims 1 to 4, d a -d u r c h g e k It is noted that the waste material of the top layer material is fine-grained, is preferably dusty. 6. Platte nach einem der Ansprüche 1 bis 5, d a -d u r c h g e k e n n z e i c h n e t , daß die Platte lackiert oder mit Dekorpapieren, Kunststoff-Folien, Furnieren und dergleichen beschichtet ist.6. Plate according to one of claims 1 to 5, d a -d u r c h g e k e n n z e i n e t that the plate is varnished or covered with decorative papers, plastic foils, Veneers and the like is coated. 7. Verfahren zum kontinuierlichen Herstellen von Platten mit einer Basisschicht, bestehend aus Gips, lignozellulose- und/oder zellulosehaltigen und/oder anorganischen Teilchen (Basisschichtgut) und mit wenigstens einer Deckschicht, bestehend aus Gips und Füllstoff (Deckschichtgut), bei dem den Teilchen Abbindewasser für den Gips zugegeben wird und die Teilchen des Basisschicht- und Deckschichtgutes einer bewegten Unterlage unter Bildung eines Vlieses zugeführt werden, das anschließend zu einem Plattenstrang verpreßt wird, insbesondere nach einem der Ansprüche 1 bis 6, d a d u r c h g e k e n n -z e i c h n e t , daß auf die Unterlage zunächst eine untere Deckschicht aus zumindest zum Teil bei der Herstellung gipsgebundener Platten anfallenden, zerkleinertem Abfallmaterial in trockenem Zustand aufgebracht, danach das das Abbindewasser für die gesamte Gipsmenge enthaltende Basisschichtgut auf der zuvor gebildeten Deckschicht separat in Vliesform aufgebracht und schließlich vor dem Pressen eine weitere, obere Deckschicht aus zumindest zum Teil bei der Herstellung gipsgebundener Platten anfallendem, zerkleinertem Abfallmaterial in trockenem Zustand auf das in Vliesform vorliegende Basisschichtgut separat aufgebracht wird.7. Process for the continuous production of panels with a Base layer, consisting of plaster of paris, lignocellulosic and / or cellulosic and / or inorganic particles (base layer material) and with at least one cover layer, consisting made of plaster of paris and filler (top layer material), in which the particles set water for the plaster of paris is added and the particles of the base layer and top layer material be fed to a moving base to form a fleece, which is then is pressed to form a plate strand, in particular according to one of claims 1 to 6, d a d u r c h e k e n n -z e i c h n e t that on the base initially a Lower cover layer made of at least partly plaster-of-paris-bonded panels accruing, shredded waste material in a dry state upset, then the base layer material containing the setting water for the entire amount of gypsum applied separately in fleece form to the previously formed cover layer and finally before pressing another, upper cover layer made at least partially during manufacture Shredded waste material accumulating from plaster-bound panels in a dry state is applied separately to the base layer, which is present in the form of a fleece. 8. Verfahren nach Anspruch 7, d a d u r c h g e -k e n n z e i c h n e t , daß die Teilchen des Deckschichtgutes auf die Unterlage oder auf die uisschicht aufgeschüttet werden, während die Teilchen des Basisschichtgutes auf die untere Deckschicht des Vliese wurfgestreut und/oder aufgeschüttet und/oder windsichtend aufgestreut werden.8. The method according to claim 7, d a d u r c h g e -k e n n z e i c h n e t that the particles of the top layer material on the substrate or on the uisschicht be heaped up, while the particles of the base layer material on the lower The top layer of the fleece is litter-scattered and / or piled up and / or air-sifting be sprinkled. 9. Verfahren nach Anspruch 7 oder 8, d a d u r c h g e k e n n z e i c h n e t , daß das Basisschichtgut bereits vor oder während der Vliesbildung eine solche Wassermenge aufweist, die entweder wenig über der zur Abbindung der gesamten Gipsmenge notwendigen Menge liegt oder die zur Abbindung der gesamten Gipsmenge gerade erforderlich ist.9. The method according to claim 7 or 8, d a d u r c h g e k e n n z e i c h n e t that the base layer material already before or during the web formation has such an amount of water that is either slightly above that for setting the total amount of plaster or the amount necessary to set the entire amount of plaster is just required. 10. Verfahren nach Anspruch 9, d a d u r c h g e -k e n n z e i c h n e t , daß der Grad der Oberflächengüte der herzustellenden Platte durch den Wassergipswert von vorzugsweise ca. w = 0,2 steuerbar ist, 10. The method according to claim 9, d a d u r c h g e -k e n n z e i c h n e t that the degree of surface quality of the plate to be produced by the Water gypsum value of preferably approx. W = 0.2 can be controlled, 11. Verfahren nach einem der Ansprüche 7 bis 10, d a d u r c h g e k e n n z e i c h n e t , daß das Abbindewasse für die gesamte Gipsmenge erwärmt wird.11. Procedure according to one of claims 7 to 10, d a d u r c h e k e n n n z e i c h n e t that the setting water for the entire amount of plaster is heated. 12. Verfahren nach Anspruch 11, d a d u r c h g e -k e n n z e i c h n e t , daß das Abbindewasser auf ca. 30. bis 350 C erwärmt wird.12. The method according to claim 11, d a d u r c h g e -k e n n z e i c It does not mean that the setting water is heated to approx. 30. to 350 C.
DE19833308585 1983-03-10 1983-03-10 Plate and method for its manufacture Ceased DE3308585A1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163963A3 (en) * 1984-05-07 1987-05-27 Bison-Werke Bähre & Greten GmbH & Co. KG Process for producing shaped products having a plaster binder
DE4107623C1 (en) * 1991-03-09 1992-06-17 Gebr. Knauf Westdeutsche Gipswerke Kg, 8715 Iphofen, De
DE4142286A1 (en) * 1991-12-20 1993-07-01 Siempelkamp Gmbh & Co Three-ply gypsum constructional board - has outer gypsum-fibre mixt. layer sandwiching gypsum-bonded granulate
WO2008104772A1 (en) * 2007-02-28 2008-09-04 Econovate Limited A building panel and a method of making a building panel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2365161A1 (en) * 1973-12-29 1975-07-03 Heidelberg Portland Zement Large plaster panels for internal building construction - made from gypsum mixed with reject cellulose pulp
DE3048412A1 (en) * 1980-12-22 1982-07-22 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe METHOD FOR PRODUCING WOOD CEMENT PANELS
DE3247009A1 (en) * 1982-12-18 1984-06-20 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Process for continuously producing plaster-bound panels, and device for carrying out the process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2365161A1 (en) * 1973-12-29 1975-07-03 Heidelberg Portland Zement Large plaster panels for internal building construction - made from gypsum mixed with reject cellulose pulp
DE3048412A1 (en) * 1980-12-22 1982-07-22 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe METHOD FOR PRODUCING WOOD CEMENT PANELS
DE3247009A1 (en) * 1982-12-18 1984-06-20 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Process for continuously producing plaster-bound panels, and device for carrying out the process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0163963A3 (en) * 1984-05-07 1987-05-27 Bison-Werke Bähre & Greten GmbH & Co. KG Process for producing shaped products having a plaster binder
DE4107623C1 (en) * 1991-03-09 1992-06-17 Gebr. Knauf Westdeutsche Gipswerke Kg, 8715 Iphofen, De
EP0503383A1 (en) * 1991-03-09 1992-09-16 Gebr. Knauf Westdeutsche Gipswerke KG Gypsum board with a high fire resistance
DE4142286A1 (en) * 1991-12-20 1993-07-01 Siempelkamp Gmbh & Co Three-ply gypsum constructional board - has outer gypsum-fibre mixt. layer sandwiching gypsum-bonded granulate
WO2008104772A1 (en) * 2007-02-28 2008-09-04 Econovate Limited A building panel and a method of making a building panel

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