WO2001012571A1 - Moulding composition - Google Patents

Moulding composition Download PDF

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Publication number
WO2001012571A1
WO2001012571A1 PCT/FR2000/002324 FR0002324W WO0112571A1 WO 2001012571 A1 WO2001012571 A1 WO 2001012571A1 FR 0002324 W FR0002324 W FR 0002324W WO 0112571 A1 WO0112571 A1 WO 0112571A1
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WO
WIPO (PCT)
Prior art keywords
weight
chosen
composition
composition according
molding
Prior art date
Application number
PCT/FR2000/002324
Other languages
French (fr)
Inventor
Philippe Dubois
Marc Fournier
Original Assignee
Philippe Dubois
Marc Fournier
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
Priority claimed from FR9910530A external-priority patent/FR2797869B1/en
Application filed by Philippe Dubois, Marc Fournier filed Critical Philippe Dubois
Priority to AU70134/00A priority Critical patent/AU7013400A/en
Publication of WO2001012571A1 publication Critical patent/WO2001012571A1/en

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Classifications

    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • 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
    • C04B28/02—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 hydraulic cements other than calcium sulfates
    • 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
    • C04B32/00—Artificial stone not provided for in other groups of this subclass
    • C04B32/005—Artificial stone obtained by melting at least part of the composition, e.g. metal
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • 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
    • C04B2111/00956—Uses not provided for elsewhere in C04B2111/00 for making sculptures or artistic casts

Definitions

  • the present invention relates to a composition for molding in the field of the ceramic industry.
  • one of the aims of the present invention is to provide a composition for molding, which makes it possible to carry out the molding of any object in one go regardless of the dimensions and / or the complexity thereof.
  • Another object is to provide such a composition which can be used in cooperation with all types of non-absorbent, flexible or rigid molds.
  • a molding composition which is characterized, according to the present invention, by the fact that it comprises from 0 to 85% by weight of a refractory aggregate, from 2 to 30% by weight of a hydraulic binder, from 0 to 20% by weight of a fluidizing agent,
  • this composition also comprises from 0 to 40% by weight of a metallic filler, and at most 2% of one or more surfactants.
  • the refractory aggregates are chosen from calcined clays such as chamottes or molochites, pure alumina, silica in the form of quartz or cristobalite.
  • the hydraulic binder is chosen from cements and plasters.
  • the flux is chosen from sodium or soda-potassium feldspars, nepheline syenite, cullet, crushed glass.
  • the surfactant is chosen from wetting agents, boiling agents, deflocculants.
  • wetting agents boiling agents, deflocculants.
  • the various constituents are generally dry-mixed and then water is added so that the water content of the composition is at most 35%. But we can also mix the different constituents by diluting them in water with stirring: we will introduce them, for example, in an order of decreasing dilution difficulty.
  • compositions below have been produced for obtaining different
  • compositions below were produced for obtaining colored earthenware:
  • compositions below have been produced for obtaining white sandstone
  • composition below was produced to obtain a chamotte sandstone:
  • composition below was produced to obtain a vitreous or sanitary porcelain:
  • compositions were produced to obtain a chamotte sandstone with a view to casting it under vibration:
  • Example 7 The objects obtained were removed from the mold and then baked at the above temperatures.
  • compositions were produced to obtain a white sandstone with a view to casting it under vibration.
  • the objects obtained were removed from the mold and then baked at the above temperatures.
  • the parts Before being enamelled, the parts are, if necessary, engobed by spraying: this makes it possible to hide surface irregularities notably due with chamotte seeds and the color of the shard if necessary.
  • compositions according to the present invention offer an acceleration of the shaping and allow a longer lifetime of the molds as well as an energy gain by making their drying unnecessary.

Abstract

The invention concerns a moulding composition comprising 0 to 85 wt.% of a refractory aggregate, 2 to 30 wt.% of a hydraulic binder; 0 to 20 wt.% of a fluidizer, 10 to 70 wt.% of a fluxing medium, and 5 to 35 wt.% of water. The invention is applicable in the ceramics industry.

Description

Composition pour moulage Composition for molding
La présente invention est relative à une composition pour moulage dans le domaine de l'industrie de la céramique.The present invention relates to a composition for molding in the field of the ceramic industry.
Actuellement, on assiste à un engouement pour le moulage de sujets ou pièces présents notamment dans des musées. Or, dans l'industrie de la céramique, le moulage de pièces de grande taille ou de formes complexes nécessite l'emploi de plusieurs moules et la mise en œuvre de techniques de raccordement entre les différentes pièces moulées : ceci entraîne de nombreuses manipulations pouvant être préjudiciables à la qualité de l'objet moulé et donc un coût important risquant de rendre le moulage de certaines pièces inintéressant sur un plan économique. Il est rappelé que les matériaux issus de l'industrie de la céramique traditionnelle sont dénommés faïence, grès, porcelaine sanitaire ou de collectivités, céramique en fonction de leur composition et/ou de leur utilisation, mais sont tous à base d'argile et sont moulés dans des moules absorbants et/ou par pressage.Currently, there is a craze for the molding of subjects or pieces present in particular in museums. However, in the ceramic industry, the molding of large parts or complex shapes requires the use of several molds and the implementation of connection techniques between the different molded parts: this leads to many manipulations that can be detrimental to the quality of the molded object and therefore a significant cost which could make the molding of certain parts uninteresting from an economic point of view. It is recalled that the materials from the traditional ceramic industry are called earthenware, stoneware, sanitary or collective porcelain, ceramic according to their composition and / or their use, but are all clay-based and are molded in absorbent molds and / or by pressing.
Aussi, un des buts de la présente invention est-il de fournir une composition pour moulage, qui permet de réaliser le moulage de tout objet en une seule fois quelles que soient les dimensions et/ou la complexité de celui-ci.Also, one of the aims of the present invention is to provide a composition for molding, which makes it possible to carry out the molding of any object in one go regardless of the dimensions and / or the complexity thereof.
Un autre but est de fournir une telle composition qui peut être utilisée en coopération avec tous les types de moules non-absorbants, souples ou rigides.Another object is to provide such a composition which can be used in cooperation with all types of non-absorbent, flexible or rigid molds.
Ces buts, ainsi que d'autres qui apparaîtront par la suite, sont atteints par une composition pour moulage qui est caractérisée, selon la présente invention, par le fait qu'elle comprend de 0 à 85 % en poids d'un agrégat réfractaire, de 2 à 30 % en poids d'un liant hydraulique, de 0 à 20 % en poids d'un agent de fluidification, deThese aims, as well as others which will appear subsequently, are achieved by a molding composition which is characterized, according to the present invention, by the fact that it comprises from 0 to 85% by weight of a refractory aggregate, from 2 to 30% by weight of a hydraulic binder, from 0 to 20% by weight of a fluidizing agent,
10 à 70 % en poids d'un fondant, et de 5 à 35 % en poids d'eau.10 to 70% by weight of a flux, and 5 to 35% by weight of water.
Avantageusement, cette composition comprend aussi de 0 à 40 % en poids d'une charge métallique, et au plus 2 % d'un ou plusieurs agents tensio-actifs.Advantageously, this composition also comprises from 0 to 40% by weight of a metallic filler, and at most 2% of one or more surfactants.
De préférence, les agrégats réfractaires sont choisis parmi les argiles calcinées telles que les chamottes ou les molochites, l'alumine pure, la silice sous forme de quartz ou de cristobalite.Preferably, the refractory aggregates are chosen from calcined clays such as chamottes or molochites, pure alumina, silica in the form of quartz or cristobalite.
Avantageusement, le liant hydraulique est choisi parmi les ciments et les plâtres.Advantageously, the hydraulic binder is chosen from cements and plasters.
De préférence, le fondant est choisi parmi les feldspaths sodiques ou sodico-potassiques, la syénite néphélinique, le calcin, le verre broyé.Preferably, the flux is chosen from sodium or soda-potassium feldspars, nepheline syenite, cullet, crushed glass.
Avantageusement, l'agent tensio-actif est choisi parmi les agents mouillants, les débullants, les défloculants. La description qui va suivre et qui ne présente aucun caractère limitatif, per - mettra à l'homme du métier d'être mieux à même de refaire la présente invention et d'en mieux comprendre les avantages.Advantageously, the surfactant is chosen from wetting agents, boiling agents, deflocculants. The description which follows and which is in no way limiting, per - will enable those skilled in the art to be better able to redo the present invention and to better understand the advantages thereof.
Pour réaliser une composition selon la présente invention, on mélange à sec, en général, les différents constituants puis on ajoute de l'eau de telle sorte que la teneur en eau de la composition soit au plus de 35 %. Mais on peut aussi mélanger les différents constituants en les délayant dans l'eau sous agitation : on les introduira, par exemple, dans un ordre de difficulté de délayage décroissant.To produce a composition according to the present invention, the various constituents are generally dry-mixed and then water is added so that the water content of the composition is at most 35%. But we can also mix the different constituents by diluting them in water with stirring: we will introduce them, for example, in an order of decreasing dilution difficulty.
Les exemples ci-après concernent un certain nombre de compositions qui ont été réalisées selon la présente invention.The examples below relate to a certain number of compositions which have been produced according to the present invention.
Exemple 1Example 1
Il a été réalisé les compositions ci-dessous pour l'obtention de différentesThe compositions below have been produced for obtaining different
Figure imgf000003_0001
Figure imgf000003_0001
Ces différentes compositions ont permis d'obtenir des objets par coulage par gravité dans des moules, qui ont été cuits aux températures ci-dessus après démoulage. Exemple 2 :These different compositions made it possible to obtain objects by gravity casting in molds, which were baked at the above temperatures after demolding. Example 2:
Il a été réalisé les compositions ci-dessous pour l'obtention de faïences colorées :The compositions below were produced for obtaining colored earthenware:
Figure imgf000004_0001
Figure imgf000004_0001
Ces différentes compositions ont permis d'obtenir des objets par coulage par gravité dans des moules, qui ont été cuits aux températures ci-dessus après démoulage. Exemple 3These different compositions made it possible to obtain objects by gravity casting in molds, which were baked at the above temperatures after demolding. Example 3
Il a été réalisé les compositions ci-dessous pour l'obtention de grès blancThe compositions below have been produced for obtaining white sandstone
Figure imgf000005_0001
Figure imgf000005_0001
Ces différentes compositions ont permis d'obtenir des objets par coulage par gravité dans des moules, qui ont été cuits aux températures ci-dessus après démoulage. Exemple 4 :These different compositions made it possible to obtain objects by gravity casting in molds, which were baked at the above temperatures after demolding. Example 4:
Il a été réalisé la composition ci-dessous pour l'obtention d'un grès chamotte :The composition below was produced to obtain a chamotte sandstone:
Figure imgf000006_0001
Figure imgf000006_0001
Cette composition a permis d'obtenir des objets par coulage par gravité dans des moules, qui ont été cuits à la température ci-dessus. Exemple 5 :This composition made it possible to obtain objects by gravity casting in molds, which were baked at the above temperature. Example 5:
Il a été réalisé la composition ci-dessous pour l'obtention d'un vitreous ou porcelaine sanitaire :The composition below was produced to obtain a vitreous or sanitary porcelain:
Figure imgf000007_0001
Figure imgf000007_0001
Cette composition a permis d'obtenir des objets par coulage par gravité dans des moules, qui ont été cuits à la température ci-dessus après démoulage. Exemple 6 :This composition made it possible to obtain objects by gravity pouring into molds, which were baked at the above temperature after demolding. Example 6:
Il a été réalisé les compositions ci-après pour obtenir un grès chamotte en vue de son coulage sous vibration :The following compositions were produced to obtain a chamotte sandstone with a view to casting it under vibration:
Figure imgf000008_0001
Figure imgf000008_0001
Les objets obtenus ont été démoulés puis cuits aux températures ci-dessus. Exemple 7 :The objects obtained were removed from the mold and then baked at the above temperatures. Example 7:
Il a été réalisé les différentes compositions ci-après pour obtenir un grès blanc en vue de son coulage sous vibration.The following compositions were produced to obtain a white sandstone with a view to casting it under vibration.
Figure imgf000009_0001
Figure imgf000009_0001
Les objets obtenus ont été démoulés puis cuits aux températures ci-dessus.The objects obtained were removed from the mold and then baked at the above temperatures.
Après démoulage des objets obtenus à partir des compositions selon ces différents exemples, ces pièces obtenues encore humides doivent être séchées afin d'éviter leur explosion lors de la montée en température, dans la phase de cuisson.After demoulding of the objects obtained from the compositions according to these different examples, these still obtained parts must be dried in order to avoid their explosion during the rise in temperature, in the cooking phase.
Avant d'être émaillées, les pièces sont, si nécessaire, engobées par pulvérisation : ceci permet de cacher les irrégularités de surface notamment dues aux grains de chamottes ainsi que la couleur du tesson si nécessaire.Before being enamelled, the parts are, if necessary, engobed by spraying: this makes it possible to hide surface irregularities notably due with chamotte seeds and the color of the shard if necessary.
Avant d'être émaillées, elles peuvent être également biscuitees c'est-à-dire cuites une première fois afin d'obtenir une meilleure qualité d'émail.Before being enamelled, they can also be biscuit, that is to say baked a first time in order to obtain a better quality of enamel.
Les produits obtenus à partir des compositions selon la présente invention offrent une accélération du façonnage et permettent une durée de vie plus élevées des moules ainsi qu'un gain énergétique en rendant inutile leur séchage. The products obtained from the compositions according to the present invention offer an acceleration of the shaping and allow a longer lifetime of the molds as well as an energy gain by making their drying unnecessary.

Claims

REVENDICATIONS
1. - Composition pour moulage, caractérisée par le fait qu'elle comprend de 0 à 85 % en poids d'un agrégat réfractaire choisi parmi les argiles calcinées, l'alumine pure, la silice sous forme de quartz ou de cristobalite et ayant une granulométrie inférieure ou égale à 0,7 mm, de 2 à 30 % en poids d'un liant hydraulique, de 0 à 20 % en poids d'un agent de fluidification, de 10 à 70 % en poids d'un fondant choisi parmi les feldspaths sodiques ou sodico-potassiques, les syénites néphéliniques, le calcin, le verre broyé, et de 5 à 35 % en poids d'eau.1. - Composition for molding, characterized in that it comprises from 0 to 85% by weight of a refractory aggregate chosen from calcined clays, pure alumina, silica in the form of quartz or cristobalite and having a particle size less than or equal to 0.7 mm, from 2 to 30% by weight of a hydraulic binder, from 0 to 20% by weight of a fluidization agent, from 10 to 70% by weight of a flux chosen from sodium or soda-potassium feldspars, nepheline syenites, cullet, crushed glass, and from 5 to 35% by weight of water.
2. - Composition selon la revendication 1 , caractérisée par le fait qu'elle comprend aussi de 0 à 40 % en poids d'une charge métallique, et au plus 2 % d'un ou plusieurs agents tensio-actifs.2. - Composition according to claim 1, characterized in that it also comprises from 0 to 40% by weight of a metallic filler, and at most 2% of one or more surface-active agents.
3. - Composition selon la revendication 1 , caractérisée par le fait que le liant hydraulique est choisi parmi les ciments et les plâtres.3. - Composition according to claim 1, characterized in that the hydraulic binder is chosen from cements and plasters.
4.- Composition selon la revendication 2, caractérisée par le fait que l'agent tensio-actif est choisi parmi les agents mouillants, les débullants, les défloculants. 4.- Composition according to claim 2, characterized in that the surface-active agent is chosen from wetting agents, boiling agents, deflocculants.
PCT/FR2000/002324 1999-08-17 2000-08-16 Moulding composition WO2001012571A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU70134/00A AU7013400A (en) 1999-08-17 2000-08-16 Moulding composition

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR99/10530 1999-08-17
FR9910530A FR2797869B1 (en) 1999-08-17 1999-08-17 COMPOSITION FOR MOLDING
FR99/10844 1999-08-27
FR9910844A FR2798378B1 (en) 1999-08-17 1999-08-27 COMPOSITION FOR MOLDING

Publications (1)

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WO2001012571A1 true WO2001012571A1 (en) 2001-02-22

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FR (1) FR2798378B1 (en)
WO (1) WO2001012571A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005085155A1 (en) * 2004-03-05 2005-09-15 Refractory Intellectual Property Gmbh & Co. Kg Ceramic batch and associated product for fireproof applications
WO2019067436A1 (en) * 2017-09-26 2019-04-04 Delta Faucet Company Aqueous gelcasting formulation for ceramic products

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516892A (en) * 1946-09-17 1950-08-01 Universal Atlas Cement Company Refractory concrete
CA1068308A (en) * 1975-07-31 1979-12-18 Marcel A.L. Marre High temperature resistant concrete and manufacturing process
EP0323009A1 (en) * 1987-12-26 1989-07-05 Inax Corporation Cement-containing ceramic articles and method for production thereof
JPH04193770A (en) * 1990-11-22 1992-07-13 Harima Ceramic Co Ltd Basic refractory for pouring
JPH10287481A (en) * 1997-04-10 1998-10-27 Tamutetsuku:Kk Production of cement-based ceramic whiteware product
JPH11268952A (en) * 1998-03-24 1999-10-05 Agency Of Ind Science & Technol High-strength porcelain and its production

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516892A (en) * 1946-09-17 1950-08-01 Universal Atlas Cement Company Refractory concrete
CA1068308A (en) * 1975-07-31 1979-12-18 Marcel A.L. Marre High temperature resistant concrete and manufacturing process
EP0323009A1 (en) * 1987-12-26 1989-07-05 Inax Corporation Cement-containing ceramic articles and method for production thereof
JPH04193770A (en) * 1990-11-22 1992-07-13 Harima Ceramic Co Ltd Basic refractory for pouring
JPH10287481A (en) * 1997-04-10 1998-10-27 Tamutetsuku:Kk Production of cement-based ceramic whiteware product
JPH11268952A (en) * 1998-03-24 1999-10-05 Agency Of Ind Science & Technol High-strength porcelain and its production

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
MUKHAMEDZHANOVA M T ET AL: "PHOSPHOGYPSUM CERAMIC BODY WITH IMPROVED PHYSICOCHEMICAL PROPERTIES", GLASS AND CERAMICS,US,CONSULTANTS BUREAU. NEW YORK, vol. 49, no. 5/6, 1 May 1992 (1992-05-01), pages 287 - 289, XP000338502, ISSN: 0361-7610 *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 518 (C - 0999) 26 October 1992 (1992-10-26) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 01 31 January 2000 (2000-01-31) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005085155A1 (en) * 2004-03-05 2005-09-15 Refractory Intellectual Property Gmbh & Co. Kg Ceramic batch and associated product for fireproof applications
WO2019067436A1 (en) * 2017-09-26 2019-04-04 Delta Faucet Company Aqueous gelcasting formulation for ceramic products
US11384023B2 (en) 2017-09-26 2022-07-12 Delta Faucet Company Aqueous gelcasting formulation for ceramic products
US11851376B2 (en) 2017-09-26 2023-12-26 Delta Faucet Company Aqueous gelcasting method for ceramic products

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AU7013400A (en) 2001-03-13
FR2798378A1 (en) 2001-03-16

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