EP0524666A1 - Durch Pressen hergestellte keramische Boden- oder Wandplatten - Google Patents
Durch Pressen hergestellte keramische Boden- oder Wandplatten Download PDFInfo
- Publication number
- EP0524666A1 EP0524666A1 EP92200500A EP92200500A EP0524666A1 EP 0524666 A1 EP0524666 A1 EP 0524666A1 EP 92200500 A EP92200500 A EP 92200500A EP 92200500 A EP92200500 A EP 92200500A EP 0524666 A1 EP0524666 A1 EP 0524666A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tile
- ridges
- furrows
- ideal
- face
- 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.)
- Granted
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 19
- 239000000919 ceramic Substances 0.000 title claims description 3
- 238000009408 flooring Methods 0.000 title claims description 3
- 239000000463 material Substances 0.000 abstract description 9
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000002345 surface coating layer Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/08—Flooring or floor layers composed of a number of similar elements only of stone or stone-like material, e.g. ceramics, concrete; of glass or with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
- E04F13/142—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass with an outer layer of ceramics or clays
Definitions
- This invention relates to the forming of ceramic flooring or facing tiles by pressing ceramic material based on clay, feldspar and quartz.
- such tiles are formed by being pressed in moulds and then subjected to thermal treatment, with possible surface coating layers on their front (exposed) face.
- Deaeration is achieved in practice by applying a first pressing action to the material at a relatively slow rate (followed by further fast pressings) to allow the air to escape as completely as possible. It happens that if a certain rate is exceeded, this depending not only on the type of material and tile area but also on other lesser factors, said air pockets begin to be present in an increasing percentage. There is therefore a limit to the frequency of the press operating cycles, which cannot be exceeded.
- the object of the present invention is to provide a tile, particularly but not exclusively to be formed from atomized materials and having a relatively large surface area (exceeding 400 cm2), in which a more effective deaeration is obtained during the pressing stage than in the case of known tiles, and hence such as to allow a higher pressing rate, while maintaining the technical characteristics and geometrical form typical of usual tiles unaltered.
- the tile of the present invention has identical technical and functional characteristics to those of the known art, it also considerably and unexpectedly improves its intrinsic capacity for evacuating air from the material during pressing.
- the present invention is described hereinafter with reference to the accompanying figures, which illustrate a preferred but not exclusive embodiment thereof.
- Figure 2 is a top plan view of the rear major face of the tile according to the invention.
- Figure 3 is an enlarged detail of the section on the generic transverse plane III-III of Figure 2.
- the present invention is based on the form of the rear major tile face (indicated by 2 in the figures), which comprises a plurality of continuous projecting ridges 3 alternating with corresponding continuous furrows 4, distributed regularly over the entire tile face 2, said ridges 3 and furrows 4 being arranged geometrically, when viewed in plan, such that ridges 3 do not intersect other ridges 3 and furrows 4 do not intersect other furrows 4 (ie so as not to form cross-overs), and that all reach the perimetral edge 6 of the tile.
- the geometrical plan arrangement of said ridges 3 and furrows 4 on the rear face 2 comprises an ideal division of the tile into several parts by means of two or more axes of symmetry of the face 2, in each of said ideal parts the ridges 3 and furrows 4 lying substantially parallel to each other and directed from the central region towards the periphery.
- said ideal division is obtained by the two central axes A and B of the face 2, in each of the four ideal parts obtained the ridges 3 and the furrows 4 being substantially parallel to that diagonal of the face 2 which passes through the respective ideal part.
- the ridges 3 of two adjacent ideal parts are joined together in pairs by a ridge portion 3'at those ends close to the central axes A and B.
- the arrangement of the ridges 3 on the face 2 is such that any section through the tile taken on a plane parallel to one of the two axes A and B intersects a number of ridges 3.
- the cross-sectional shape of the ridges 3 can be of any type, for example trapezium shaped as the ridges of known tiles; the dimensions (height and width) of these ridges are also substantially equal to those of the ridges of known tiles, ie about one millimetre in height and a few millimetres in width.
- a perimetral ridge 5 is provided, its presence being dictated by structural reasons in that it considerably favours planarity of the major faces of the tile.
- the perimetral ridge 5 does not however create a large obstacle to air evacuation, although for this reason it would be preferable that it were absent.
- Tiles with surface dimensions of 30 cm x 30 cm were pressed using a SITI 1500 T press acting simultaneously on three moulds (ie a multiple mould with three impressions); said moulds are of the so-called "mirror" type with the upper punch defining the front face of the tile, and mobile together with the perimetral die, the lower punch being fixed.
- the percentage of tiles manifesting at least one small internal air pocket (bubble) was as follows:
- the second test was conducted in the same manner as the 1st test but using a SITI 1700 T press acting simultaneously on two "mirror-plate" moulds for tiles with surface dimensions of 40 cm x 40 cm (again at a frequency of 11.5 cycles per minute).
- the percentage of defective tiles was as follows:
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Dispersion Chemistry (AREA)
- Finishing Walls (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Floor Finish (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRE910053A IT1252742B (it) | 1991-07-24 | 1991-07-24 | Piastrella in materiale ceramico per pavimenti o rivestimenti realizzato mediante pressatura. |
ITRE910053 | 1991-07-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0524666A1 true EP0524666A1 (de) | 1993-01-27 |
EP0524666B1 EP0524666B1 (de) | 1995-11-02 |
Family
ID=11398043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92200500A Expired - Lifetime EP0524666B1 (de) | 1991-07-24 | 1992-02-20 | Durch Pressen hergestellte keramische Boden- oder Wandplatten |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0524666B1 (de) |
AT (1) | ATE129770T1 (de) |
DE (1) | DE69205746D1 (de) |
IT (1) | IT1252742B (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2761095A1 (fr) * | 1997-03-19 | 1998-09-25 | Siplast Sa | Structure de dalle pour revetement de terrasse et revetement constitue au moyen de telles dalles |
CN110761509A (zh) * | 2019-09-30 | 2020-02-07 | 佛山市薄尔特陶瓷有限公司 | 一种仿砖陶瓷保温防火装饰一体板及其生产方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR35191E (fr) * | 1928-04-06 | 1929-12-17 | Système de dalles et dallages pour ateliers, etc. | |
US2255712A (en) * | 1940-07-18 | 1941-09-09 | Olean Tile Company | Tile |
WO1991000402A1 (en) * | 1989-07-05 | 1991-01-10 | Owens Charles R | Laminated tile product, method for producing the same and method for installing the same |
WO1991005929A1 (en) * | 1989-10-19 | 1991-05-02 | Owens Charles R | Laminated tile and method for producing same |
-
1991
- 1991-07-24 IT ITRE910053A patent/IT1252742B/it active IP Right Grant
-
1992
- 1992-02-20 AT AT92200500T patent/ATE129770T1/de not_active IP Right Cessation
- 1992-02-20 DE DE69205746T patent/DE69205746D1/de not_active Expired - Lifetime
- 1992-02-20 EP EP92200500A patent/EP0524666B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR35191E (fr) * | 1928-04-06 | 1929-12-17 | Système de dalles et dallages pour ateliers, etc. | |
US2255712A (en) * | 1940-07-18 | 1941-09-09 | Olean Tile Company | Tile |
WO1991000402A1 (en) * | 1989-07-05 | 1991-01-10 | Owens Charles R | Laminated tile product, method for producing the same and method for installing the same |
WO1991005929A1 (en) * | 1989-10-19 | 1991-05-02 | Owens Charles R | Laminated tile and method for producing same |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2761095A1 (fr) * | 1997-03-19 | 1998-09-25 | Siplast Sa | Structure de dalle pour revetement de terrasse et revetement constitue au moyen de telles dalles |
CN110761509A (zh) * | 2019-09-30 | 2020-02-07 | 佛山市薄尔特陶瓷有限公司 | 一种仿砖陶瓷保温防火装饰一体板及其生产方法 |
Also Published As
Publication number | Publication date |
---|---|
ITRE910053A0 (it) | 1991-07-24 |
ATE129770T1 (de) | 1995-11-15 |
IT1252742B (it) | 1995-06-28 |
ITRE910053A1 (it) | 1993-01-24 |
DE69205746D1 (de) | 1995-12-07 |
EP0524666B1 (de) | 1995-11-02 |
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