EP1009722B1 - Procede de fabrication de tuiles a emboitement - Google Patents
Procede de fabrication de tuiles a emboitement Download PDFInfo
- Publication number
- EP1009722B1 EP1009722B1 EP98910788A EP98910788A EP1009722B1 EP 1009722 B1 EP1009722 B1 EP 1009722B1 EP 98910788 A EP98910788 A EP 98910788A EP 98910788 A EP98910788 A EP 98910788A EP 1009722 B1 EP1009722 B1 EP 1009722B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- granules
- process according
- slip
- tiles
- deflocculant
- 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
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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/004—Devices for shaping artificial aggregates from ceramic mixtures or from mixtures containing hydraulic binder
-
- 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
Definitions
- the subject of the present invention is a method of manufacturing interlocking tiles.
- a first drawback of this traditional technique is in the importance of the installations to be implemented, especially for drying the tiles before they are cooked and for cost of energy to achieve such drying.
- Other problems significant encountered on current installations result from variations humidity, dry inclusions, poor positioning of the wafer during pressing and / or irregular flushing of the clay during pressing, defects caused by the molds and especially a non-shrinking homogeneous and stresses during drying which cause cracks or deformation of the product.
- the object of the invention is to provide a method for manufacturing interlocking tiles that do not require a drying phase, while allowing obtaining a tile which has the characteristics essentials, including good waterproofing and good ingenuity, without specific further treatment.
- This process has the primary advantage of limiting the importance the tile manufacturing facility, as far as one can eliminate the drying phase of these. However, it is possible preheat before cooking to lower the rate humidity, if it is too high.
- dry shaping allows better respect of the dimensions of the tiles, and a better surface condition than forming in plastic paste. Indeed, there does not exist, in a tile obtained by the process according to the invention the shrinkage phenomena that are known during the drying of the tiles obtained by the traditional process.
- the process according to the invention is advantageous, since the drying phase is removed, it allows significant energy savings.
- this process consists in preparing a slip with 0.2 to 1% by mass of deflocculant, the deflocculant being, by example, sodium pyrophosphate.
- the granulation is obtained by atomization of the slip which is sent into a cylinder where hot air circulates, which dries instantly slip droplets, which become particles spherical in different sizes, depending on the size and shape of the nozzles projecting the slip, as well as according to the power of the jet.
- the humidity is temperature controlled.
- Granules of spherical shape are thus obtained, located in a range of grain sizes, with a moist heart surrounded by a dry shell, advantageous structure because allowing, during pressing, a good distribution in the mold.
- the humidity of the granules obtained is controlled by temperature and is less than 10% and preferably of around 8%.
- the powder formed by the granules is pressed in a two-cavity mold, which can have several moving parts, the relative to each other, in order to achieve thickness differences, curves, ribs, baffles, as is the case for tiles obtained by the traditional technique, while allowing ensure uniform pressure at all points in the mass of granules pressed during molding.
- the mold filler shoe may also have a preform.
- this manufacturing process which includes very specific phases of implementation, allows to obtain by dry pressing, tiles having good mechanical characteristics, as well as good impermeability and good ingenuity.
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Finishing Walls (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Glass Compositions (AREA)
Description
- à broyer l'argile sous forme de particules d'un diamètre au plus égal à 70 µm,
- à préparer une barbotine par addition d'eau et d'un défloculant,
- à réaliser l'atomisation de la barbotine pour obtenir des granules sphériques dont l'humidité est comprise entre 0,5 et 10%,
- et à réaliser le pressage des granules à l'intérieur d'un moule sous une pression supérieure à 300 kg/cm2 (1 kg/cm2 = 101 300 Pa).
Claims (8)
- Procédé de fabrication de tuiles à emboítement, caractérisé en ce qu'il consiste :à broyer l'argile sous forme de particules d'un diamètre au plus égal à 70 µm,à préparer une barbotine par addition d'eau et d'un défloculant,à réaliser l'atomisation de la barbotine pour obtenir des granules sphériques dont l'humidité est comprise entre 0,5 et 10%,et à réaliser le pressage des granules à l'intérieur d'un moule sous une pression supérieure à 300 kg/cm2 (1 kg/cm2 = 101 300 Pa).
- Procédé selon la revendication 1, caractérisé en ce que la pression de pressage des granules est comprise entre 300 et 600 kg/cm2 (1 kg/cm2 = 101 300 Pa).
- Procédé selon l'une quelconque des revendications 1 et 2, caractérisé en ce qu'il consiste à préparer une barbotine avec 0,2 à 1% en masse de déflocutant.
- Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le défloculant est du pyrophosphate de soude.
- Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'humidité des granules obtenues est contrôlée par la température et est inférieure à 10 %.
- Procédé selon la revendication 5, caractérisé en ce que l'humidité des granules est de l'ordre de 8 %.
- Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il consiste à mettre en oeuvre une argile de type illitique.
- Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il consiste à réaliser le moulage des tuiles dans un moule comportant des pièces mobiles, pour assurer une pression uniforme en tous les points de la masse de granules pressées lors du moulage.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9702179A FR2759723B1 (fr) | 1997-02-19 | 1997-02-19 | Procede de fabrication de tuiles a emboitement |
FR9702179 | 1997-02-19 | ||
PCT/FR1998/000315 WO1998037033A1 (fr) | 1997-02-19 | 1998-02-18 | Procede de fabrication de tuiles a emboitement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1009722A1 EP1009722A1 (fr) | 2000-06-21 |
EP1009722B1 true EP1009722B1 (fr) | 2001-07-25 |
Family
ID=9504105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98910788A Expired - Lifetime EP1009722B1 (fr) | 1997-02-19 | 1998-02-18 | Procede de fabrication de tuiles a emboitement |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1009722B1 (fr) |
AT (1) | ATE203501T1 (fr) |
DE (1) | DE69801229T2 (fr) |
ES (1) | ES2161045T3 (fr) |
FR (1) | FR2759723B1 (fr) |
WO (1) | WO1998037033A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106495663B (zh) * | 2016-11-14 | 2019-04-23 | 山东省方圆经纬设计集团有限公司 | 一种轻质自保温砌块 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE447241C (de) * | 1924-10-21 | 1927-07-18 | Adriaan Van De Koppel | Verfahren zur Herstellung von Presslingen aus pulverfoermigen keramischen Massen nach dem Trockenpressverfahren |
GB555839A (en) * | 1942-03-24 | 1943-09-09 | Altham Colliery Company 1924 L | Improvements in and relating to the manufacture of buttons and the like |
FR1161534A (fr) * | 1955-10-12 | 1958-09-01 | Philips Nv | Procédé de moulage d'objets en matière céramique |
FR1445450A (fr) * | 1965-08-28 | 1966-07-08 | Pacific Clay Products | Procédé et appareil pour fabriquer des articles et produits céramiques |
JPS5232909A (en) * | 1975-09-09 | 1977-03-12 | Nippon Toki Kk | Manufacture of clay powder for ceramics cast mud |
DD155820B1 (de) * | 1978-10-24 | 1986-02-26 | Freiberg Bergakademie | Verfahren zur herstellung von keramischen versatzes |
DE3619272A1 (de) * | 1986-06-07 | 1987-12-10 | Schirnding Porzellan | Verfahren und vorrichtung zum herstellen einer feinkeramischen masse grosser homogenitaet und hohen feinheitsgrades |
SU1451128A1 (ru) * | 1986-12-02 | 1989-01-15 | В.З.Абдрахимов | Керамическа масса дл изготовлени художественной керамики |
SU1726440A1 (ru) * | 1989-10-03 | 1992-04-15 | Абаканский Филиал Красноярского Политехнического Института | Масса дл изготовлени керамических изделий |
JPH06191926A (ja) * | 1992-12-24 | 1994-07-12 | Mitsui Mining & Smelting Co Ltd | マグネシア磁器組成物 |
FR2722131B1 (fr) * | 1994-07-08 | 1996-08-14 | Rhone Poulenc Chimie | Procede de preparation de melanges aqueux agrileux pompables |
DE4444774C1 (de) * | 1994-12-15 | 1996-03-07 | Klaus Dipl Ing Strobel | Verfahren und Vorrichtung zur Herstellung von keramischen Produkten |
-
1997
- 1997-02-19 FR FR9702179A patent/FR2759723B1/fr not_active Expired - Fee Related
-
1998
- 1998-02-18 DE DE69801229T patent/DE69801229T2/de not_active Expired - Lifetime
- 1998-02-18 EP EP98910788A patent/EP1009722B1/fr not_active Expired - Lifetime
- 1998-02-18 AT AT98910788T patent/ATE203501T1/de not_active IP Right Cessation
- 1998-02-18 WO PCT/FR1998/000315 patent/WO1998037033A1/fr active IP Right Grant
- 1998-02-18 ES ES98910788T patent/ES2161045T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1998037033A1 (fr) | 1998-08-27 |
EP1009722A1 (fr) | 2000-06-21 |
FR2759723A1 (fr) | 1998-08-21 |
ES2161045T3 (es) | 2001-11-16 |
FR2759723B1 (fr) | 1999-03-19 |
ATE203501T1 (de) | 2001-08-15 |
DE69801229D1 (de) | 2001-08-30 |
DE69801229T2 (de) | 2001-11-08 |
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