ES2219254T3 - DEVICE FOR THE MODELING OF CERAMIC PRODUCTS, WHICH INCLUDE Slabs, TILES, TILES AND SIMILAR, BY PRESSING DUST. - Google Patents

DEVICE FOR THE MODELING OF CERAMIC PRODUCTS, WHICH INCLUDE Slabs, TILES, TILES AND SIMILAR, BY PRESSING DUST.

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Publication number
ES2219254T3
ES2219254T3 ES00201036T ES00201036T ES2219254T3 ES 2219254 T3 ES2219254 T3 ES 2219254T3 ES 00201036 T ES00201036 T ES 00201036T ES 00201036 T ES00201036 T ES 00201036T ES 2219254 T3 ES2219254 T3 ES 2219254T3
Authority
ES
Spain
Prior art keywords
tiles
modeling
pressed
edge
active surface
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.)
Expired - Lifetime
Application number
ES00201036T
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Spanish (es)
Inventor
Franco Stefani
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System SpA
Original Assignee
System SpA
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 System SpA filed Critical System SpA
Application granted granted Critical
Publication of ES2219254T3 publication Critical patent/ES2219254T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/024—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form the pressure on the material being transmitted through flexible or resilient wall parts, e.g. flexible cushions on the ramming surface, resilient wall parts pressing as a result of deformation caused by ram pressure
    • 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
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/021—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces

Abstract

Dispositivo para el modelado de productos cerámicos, que comprenden losas, baldosas, azulejos y similares, mediante prensado de polvos, que incluye: - un elemento inferior (2) que presenta un plano inferior de apoyo (3) apto para soportar un polvo a prensar (20), el plano inferior de apoyo (3) también funcionando como molde inferior del dispositivo; - un elemento superior (4) que tiene al menos una superficie activa (5), predispuesta de frente al plano de apoyo inferior (3), la por lo menos una superficie activa (5) estando provista de un marco de modelado (6) que sobresale inferiormente y que está predispuesto de manera tal de delimitar un perímetro de una zona cerrada de prensado; caracterizado por el hecho que el marco de modelado (6), además delimita un perímetro de una zona cerrada de prensado y, por lo tanto, delimita un correspondiente producto final prensado (21), teniendo una forma como para generar un borde (22) del producto final prensado (21) que tiene una mayor densidad que ladensidad de las zonas internas del producto final prensado (21); el borde (22) teniendo la función de impedir la formación de fisuras o rajaduras en el cuerpo de los mismos productos cerámicos, losas, baldosas, azulejos y similares.Device for modeling ceramic products, comprising slabs, tiles, tiles and the like, by powder pressing, which includes: - a lower element (2) having a lower support plane (3) suitable for supporting a powder to be pressed (20), the lower support plane (3) also functioning as the lower mold of the device; - an upper element (4) having at least one active surface (5), predisposed in front of the lower support plane (3), the at least one active surface (5) being provided with a modeling frame (6) that protrudes inferiorly and that is predisposed in such a way to delimit a perimeter of a closed pressing area; characterized by the fact that the modeling frame (6) also delimits a perimeter of a closed pressing area and, therefore, delimits a corresponding final pressed product (21), having a shape to generate an edge (22) of the final pressed product (21) having a higher density than the density of the internal areas of the final pressed product (21); the edge (22) having the function of preventing the formation of fissures or cracks in the body of the same ceramic products, slabs, tiles, tiles and the like.

Description

Dispositivo para el modelado de productos cerámicos, que comprenden losas, baldosas, azulejos y similares, mediante prensado de polvos.Product modeling device ceramics, comprising slabs, tiles, tiles and the like, by powder pressing.

La técnica conocida en el sector del modelado de baldosas o azulejos se basa sobre el uso de moldes introducidos dentro de prensas. Los moldes, hablando en términos esquemáticos, están constituidos por una cavidad dentro de la cual se depositan los polvos, y por al menos un punzón que tiene el cometido de prensar los polvos depositados. Tal dispositivo se conoce a partir de la patente de invención GB-A-647.144.The technique known in the modeling sector of tiles is based on the use of molds introduced within presses The molds, speaking in schematic terms, they are constituted by a cavity within which they are deposited the powders, and for at least one punch that has the task of Press the deposited powders. Such a device is known from of the invention patent GB-A-647.144.

También se conoce el uso de moldes en los cuales la cavidad no está hecha en el molde inferior; ésta, por el contrario, se usa para la deposición de un estrato de polvos que luego es prensado por el molde superior o por un punzón. La delimitación y contención lateral del material a prensar para formar la baldosa, azulejo o losa se lleva a cabo mediante un marco de modelado asociado al punzón o molde superior, el cual sobresale del molde superior de manera que pueda quedar en contacto con el plano inferior (donde están depositados los polvos a prensar) durante la operación de prensado.The use of molds in which the cavity is not made in the lower mold; this one for him On the contrary, it is used for the deposition of a powder stratum that It is then pressed by the upper mold or by a punch. The delimitation and lateral containment of the material to be pressed to form The tile, tile or slab is carried out using a frame of modeling associated with the punch or upper mold, which protrudes from the upper mold so that it can be in contact with the plane lower (where the powders to be pressed are deposited) during the pressing operation.

Esta solución exhibe una cierta cantidad de complejidades constructivas debido a la necesidad de predisponer dispositivos para mover verticalmente el marco con respecto al punzón, y se ve sometida a problemas de desgaste de las partes en movimiento.This solution exhibits a certain amount of constructive complexities due to the need to predispose devices to move the frame vertically with respect to the punch, and is subjected to problems of wear of the parts in movement.

Otra desventaja de no fácil solución se refiere a la necesidad de proporcionar un dispositivo para la limpieza del punzón durante el tiempo que media entre una ejecución de prensado y la siguiente.Another disadvantage of not easy solution concerns the need to provide a device for cleaning the punch during the time between a pressing run and the next one

El objetivo principal de la presente invención es el de proporcionar un dispositivo para el modelado de productos cerámicos, tales como losas, baldosas, azulejos y similares, mediante prensado de polvos, que supere las desventajas y limitaciones descritas con anterioridad inherentes a la técnica conocida.The main objective of the present invention is to provide a device for modeling products ceramics, such as slabs, tiles, tiles and the like, by powder pressing, to overcome the disadvantages and limitations described previously inherent in the technique known.

La invención es funcional y simple en términos constructivos.The invention is functional and simple in terms constructive

Otra ventaja de la presente invención es el hecho que permite realizar la operación de limpieza del punzón, a llevar a cabo entre una operación de prensado y la siguiente, fácilmente y lejos de la zona de prensado.Another advantage of the present invention is the fact which allows the punch cleaning operation to be carried out carried out between one pressing operation and the next, easily and away from the pressing area.

Esos objetivos y ventajas y aún otros se logran en su totalidad mediante el objeto de la presente invención, tal como está caracterizado en las reivindicaciones que están más adelante.Those goals and advantages and still others are achieved in its entirety by the object of the present invention, such as characterized in the claims that are more ahead.

Otras características y ventajas de la presente invención se pondrán aún más de manifiesto a partir de la descripción detallada que sigue de una realización de la invención preferida pero no exclusiva, exhibida a título puramente ejemplificador y no limitativo mediante las figuras de los dibujos anexos, en los cuales:Other features and advantages of this invention will become even more apparent from the Detailed description that follows of an embodiment of the invention preferred but not exclusive, displayed purely exemplifier and not limiting by the figures of the drawings annexes, in which:

- la figura 1 es una sección longitudinal esquemática hecha según un plano vertical paralelo a la dirección de avance de los materiales a prensar;- figure 1 is a longitudinal section schematic made according to a vertical plane parallel to the direction of advance of the materials to be pressed;

- la figura 2 es un dibujo en escala amplificada de un detalle de la figura 1;- Figure 2 is an enlarged scale drawing of a detail of figure 1;

- la figura 3 es el mismo detalle de la figura 2, en una configuración operativa diferente.- figure 3 is the same detail as figure 2, in a different operational configuration.

Con referencia a las figuras mencionadas arriba, el numeral 1 denota en su totalidad un dispositivo para el modelado de productos cerámicos, tales como losas, baldosas, azulejos y similares, mediante prensado de polvos, constituido esquemáticamente por una prensa (11) con una abertura central atravesada por un elemento inferior (2), constituido por una cinta continua inferior (12) que exhibe un plano de apoyo (3) adecuado para soportar el polvo (20) a prensar, y un elemento superior (4), constituido por la rama horizontal de una cinta continua superior (15), envuelta tipo anillo y tensada entre dos tambores (16) que tienen ejes paralelos y están situados externamente, la cual cinta continua superior (15) que constituye al elemento superior (4) es impulsada en sincronía con la cinta continua inferior (12) que constituye al elemento inferior (2).With reference to the figures mentioned above, numeral 1 denotes in its entirety a device for modeling of ceramic products, such as slabs, tiles, tiles and similar, by powder pressing, constituted schematically by a press (11) with a central opening crossed by a lower element (2), constituted by a tape bottom continuum (12) exhibiting a suitable support plane (3) to support the powder (20) to be pressed, and a top element (4), constituted by the horizontal branch of a continuous upper belt (15), wrapped ring type and tensioned between two drums (16) that they have parallel axes and are located externally, which tape upper continuous (15) that constitutes the upper element (4) is driven in sync with the lower continuous belt (12) that constitutes the lower element (2).

El elemento inferior (2) descansa y se desliza a lo largo de una superficie superior del pistón (10) de la prensa (11) y es mandado por el pistón (10) a desplazarse hacia arriba para así ejercer la acción de prensado.The lower element (2) rests and slides to along an upper surface of the piston (10) of the press (11) and is sent by the piston (10) to move up in order to exercise the pressing action.

El elemento superior (4) está provisto de una pluralidad de superficies activas (5), situadas y distribuidas en un orden predeterminado a lo largo de la cinta continua superior (15).The upper element (4) is provided with a plurality of active surfaces (5), located and distributed in a predetermined order along the upper continuous tape (fifteen).

En cada acción de prensado las superficies activas (5) son llevadas en contacto con el plano de apoyo (3) de la cinta continua inferior (12).In each pressing action the surfaces active (5) are brought into contact with the support plane (3) of the lower continuous belt (12).

Cada superficie activa (5) está caracterizada por el hecho que está provista de un marco de modelado (6) que sobresale inferiormente (cuando la superficie activa (5) está en contacto con el plano de apoyo (3)) y está predispuesto de manera de delimitar a su perímetro una zona cerrada de prensado.Each active surface (5) is characterized by the fact that it is provided with a modeling framework (6) that protrudes inferiorly (when the active surface (5) is in contact with the support plane (3)) and is predisposed so to delimit to its perimeter a closed area of pressing.

Sobre la cinta continua superior (15) se puede predisponer una pluralidad de marcos de modelado (6), todos distintos entre sí, de manera de poder alterar el tipo de superficie a obtener sobre el producto prensado.On the upper continuous belt (15) you can predispose a plurality of modeling frames (6), all different from each other, so as to be able to alter the type of surface to be obtained on the pressed product.

El marco de modelado (6) exhibe una parte interna (7) que lleva a cabo el prensado del borde (22) del producto final prensado (21). Esta parte interna (7) externamente está delimitada por un borde (8) que tiene una profundidad, medida en la dirección de prensado, que es mayor o igual que la del cuerpo central del producto final prensado (21).The modeling frame (6) exhibits an internal part (7) which performs the edge pressing (22) of the final product pressing (21). This internal part (7) externally is delimited by an edge (8) that has a depth, measured in the direction pressing, which is greater than or equal to that of the central body of the final pressed product (21).

En particular, la parte interna (7) sobresale inferiormente con respecto a la superficie activa (5) y presenta una profundidad que disminuye gradualmente a medida que se aleja del borde (8).In particular, the internal part (7) protrudes inferiorly with respect to the active surface (5) and presents a depth that gradually decreases as it moves away from the edge (8).

Todo el marco de modelado (6) está constituido por un material provisto de una considerable deformabilidad elástica (goma u otro elastómero).The entire modeling framework (6) is constituted by a material provided with considerable deformability elastic (rubber or other elastomer).

La rama superior de la cinta continua inferior (12) se mueve en sincronía con la rama inferior de la cinta continua superior (15).The upper branch of the lower continuous belt (12) moves in sync with the lower branch of the tape upper continuous (15).

En la estructura descrita, el plano de apoyo inferior (3) también actúa como molde inferior del dispositivo de modelado.In the described structure, the support plane Lower (3) also acts as the lower mold of the device modeling.

Durante la etapa de prensado, el pistón (10) se levanta, levantando la parte del elemento inferior (2) sobre la cual se ha depositado el polvo a prensar, prensando así el polvo contra la superficie activa (5) delimitada por el marco de modelado (6) de la cinta continua superior (15).During the pressing stage, the piston (10) is lift, lifting the part of the lower element (2) over the which has been deposited the powder to be pressed, thus pressing the powder against the active surface (5) delimited by the modeling framework (6) of the upper continuous belt (15).

Mientras los bordes (8) principalmente tienen el cometido de definir periféricamente el área de compresión, las partes internas (7) tienen la función de realizar, en correspondencia del borde del polvo, un área perimetral de mayor compresión con respecto a la parte central de los polvos, creando así una zona más comprimida en el borde de la baldosa, azulejo o losa prensada.While the edges (8) mainly have the committed to define peripherally the area of compression, the internal parts (7) have the function of performing, in dust edge map, a perimeter area of greater compression with respect to the central part of the powders, creating thus a more compressed area on the edge of the tile, tile or pressed slab.

La presencia de esta zona más comprimida, que se quitará a través de un corte después del cocido, y especialmente en el caso de baldosas, azulejos o losas finas, esencialmente tiene función muy importante de impedir la formación de fisuras o rajaduras en el cuerpo de las mismas losas, baldosas o azulejos.The presence of this more compressed area, which remove through a cut after cooking, and especially in the case of tiles, tiles or thin slabs, essentially has very important function of preventing the formation of fissures or cracks in the body of the same slabs, tiles.

Una ventaja de la presente invención es que la operación de modelado de baldosas, azulejos o losas es muy simple y rápida, especialmente cuando las losas, azulejos o losas son de grandes dimensiones y al mismo tiempo son relativamente finas.An advantage of the present invention is that the Modeling operation of tiles, tiles or slabs is very simple and fast, especially when slabs, tiles or slabs are of large dimensions and at the same time are relatively thin.

Claims (7)

1. Dispositivo para el modelado de productos cerámicos, que comprenden losas, baldosas, azulejos y similares, mediante prensado de polvos, que incluye:1. Device for modeling products ceramics, comprising slabs, tiles, tiles and the like, by powder pressing, which includes: - un elemento inferior (2) que presenta un plano inferior de apoyo (3) apto para soportar un polvo a prensar (20), el plano inferior de apoyo (3) también funcionando como molde inferior del dispositivo;- a lower element (2) having a plane bottom support (3) suitable for supporting a powder to be pressed (20), the lower support plane (3) also functioning as a mold bottom of the device; - un elemento superior (4) que tiene al menos una superficie activa (5), predispuesta de frente al plano de apoyo inferior (3), la por lo menos una superficie activa (5) estando provista de un marco de modelado (6) que sobresale inferiormente y que está predispuesto de manera tal de delimitar un perímetro de una zona cerrada de prensado; caracterizado por el hecho que el marco de modelado (6), además delimita un perímetro de una zona cerrada de prensado y, por lo tanto, delimita un correspondiente producto final prensado (21), teniendo una forma como para generar un borde (22) del producto final prensado (21) que tiene una mayor densidad que la densidad de las zonas internas del producto final prensado (21); el borde (22) teniendo la función de impedir la formación de fisuras o rajaduras en el cuerpo de los mismos productos cerámicos, losas, baldosas, azulejos y similares.- an upper element (4) having at least one active surface (5), predisposed in front of the lower support plane (3), the at least one active surface (5) being provided with a modeling frame (6) that protrudes inferiorly and that is predisposed in such a way to delimit a perimeter of a closed pressing area; characterized by the fact that the modeling frame (6) also delimits a perimeter of a closed pressing area and, therefore, delimits a corresponding final pressed product (21), having a shape to generate an edge (22) of the pressed final product (21) having a higher density than the density of the internal areas of the pressed final product (21); the edge (22) having the function of preventing the formation of fissures or cracks in the body of the same ceramic products, slabs, tiles, tiles and the like. 2. Dispositivo según la reivindicación 1, caracterizado por el hecho que el marco de modelado (6) exhibe una parte interna (7) que prensa al borde (22) del producto final prensado (21) y que está delimitado externamente por un borde de delimitación (8) que tiene una profundidad que, medida en una dirección de prensado, es mayor o igual que una profundidad del producto final prensado (21).Device according to claim 1, characterized in that the modeling frame (6) exhibits an internal part (7) that presses to the edge (22) of the pressed final product (21) and that is externally delimited by an edge of delimitation (8) having a depth that, measured in a pressing direction, is greater than or equal to a depth of the final pressed product (21). 3. Dispositivo según la reivindicación 2, caracterizado por el hecho que la parte interna (7) sobresale inferiormente con respecto a la superficie activa (5) y decrece gradualmente en profundidad en una dirección que va desde el borde de delimitación (8) hacia la superficie activa.Device according to claim 2, characterized in that the internal part (7) protrudes inferiorly with respect to the active surface (5) and gradually decreases in depth in a direction that goes from the bounding edge (8) towards the active surface. 4. Dispositivo según la reivindicación 3, caracterizado por el hecho que el elemento superior que tiene al menos una superficie activa (5) delimitada por el marco de modelado (6) está constituida por una rama inferior de una cinta continua superior (15) que está envuelta tipo anillo y tensada entre dos tambores (16) que tienen ejes paralelos y están ubicados externamente.Device according to claim 3, characterized in that the upper element having at least one active surface (5) delimited by the modeling frame (6) is constituted by a lower branch of a continuous upper belt (15) which It is wrapped ring type and tensioned between two drums (16) that have parallel shafts and are located externally. 5. Dispositivo según la reivindicación 4, caracterizado por el hecho que al menos el marco de modelado (6) está constituido por un material que tiene propiedades de deformabilidad elástica considerables.Device according to claim 4, characterized in that at least the modeling frame (6) is constituted by a material that has considerable elastic deformability properties. 6. Dispositivo según la reivindicación 5, caracterizado por el hecho que la cinta continua superior (15) envuelta tipo anillo presenta una pluralidad de superficies activas (5) delimitadas por la misma cantidad de pluralidad de marcos de modelado (6), distribuidos a lo largo de la cinta continua superior (15).Device according to claim 5, characterized in that the upper continuous belt (15) wrapped in a ring type has a plurality of active surfaces (5) delimited by the same amount of plurality of modeling frames (6), distributed as length of upper continuous belt (15). 7. Dispositivo según la reivindicación 6, caracterizado por el hecho que el elemento inferior (2) que incluye al plano de apoyo inferior (3) apto para soportar el polvo a prensar (20) está constituido por una rama superior de la cinta continua inferior (12), la cual cinta (20) se mueve en sincronía con la rama inferior de la cinta continua superior (15).Device according to claim 6, characterized in that the lower element (2) including the lower support plane (3) suitable for supporting the powder to be pressed (20) is constituted by an upper branch of the lower continuous belt (12), which tape (20) moves in sync with the lower branch of the upper continuous belt (15).
ES00201036T 2000-03-23 2000-03-23 DEVICE FOR THE MODELING OF CERAMIC PRODUCTS, WHICH INCLUDE Slabs, TILES, TILES AND SIMILAR, BY PRESSING DUST. Expired - Lifetime ES2219254T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20000201036 EP1136211B1 (en) 2000-03-23 2000-03-23 A device for forming ceramic products, including slabs, tiles and the like, by powder pressing

Publications (1)

Publication Number Publication Date
ES2219254T3 true ES2219254T3 (en) 2004-12-01

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ES00201036T Expired - Lifetime ES2219254T3 (en) 2000-03-23 2000-03-23 DEVICE FOR THE MODELING OF CERAMIC PRODUCTS, WHICH INCLUDE Slabs, TILES, TILES AND SIMILAR, BY PRESSING DUST.

Country Status (4)

Country Link
EP (1) EP1136211B1 (en)
DE (1) DE60011221T2 (en)
ES (1) ES2219254T3 (en)
PT (1) PT1136211E (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20030209A1 (en) * 2003-07-22 2005-01-23 System Spa DEVICE FOR FORMING CERAMIC ARTICLES,
DE102014105661A1 (en) * 2013-04-21 2014-10-23 Rampf Formen Gmbh Auflastvorrichtung
MX2018006041A (en) * 2015-11-16 2018-08-01 System Spa A forming element for ceramic articles.
ITUB20155626A1 (en) * 2015-11-16 2017-05-16 System Spa FORMING ELEMENT FOR CERAMIC ARTICLES
ITUB20160504A1 (en) 2016-01-15 2017-07-15 System Spa FORMAT COMPENSATOR FOR A PRESSING DEVICE
ITUA20161363A1 (en) 2016-03-04 2017-09-04 System Spa PRESSING DEVICE
IT202000016744A1 (en) * 2020-07-09 2022-01-09 Siti B & T Group Spa EQUIPMENT FOR THE CREATION OF SLABS IN CERAMIC MATERIAL

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647144A (en) * 1947-07-17 1950-12-06 Malkin Tiles Burslem Ltd Improvements in and relating to die boxes for moulding clay tiles
DE1965173A1 (en) * 1969-12-27 1971-07-22 Steinzeug Und Mosaikplattenfab Process for the production of slip-resistant, cams provided, dry-pressed ceramic stoneware tiles
GB2260318B (en) * 1991-09-17 1995-11-08 Daiken Corp An inorganic plate
FR2714048B1 (en) * 1993-12-16 1996-02-16 Everite Sa Article, in particular a building cladding plate, and method of manufacturing such an article.
IT1287505B1 (en) * 1996-11-22 1998-08-06 Algeri Maris Continuous pressing method and plant for production of tiles - involves controlled discharge of contained layer of powder on conveyor belt that advances through pre-pressing rollers to mould and pressing punch

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PT1136211E (en) 2004-09-30
DE60011221D1 (en) 2004-07-08
EP1136211A1 (en) 2001-09-26
DE60011221T2 (en) 2005-08-04
EP1136211B1 (en) 2004-06-02

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