EP0736363A2 - Matrice, en particulier pour le pressage de carreaux en céramique - Google Patents

Matrice, en particulier pour le pressage de carreaux en céramique Download PDF

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Publication number
EP0736363A2
EP0736363A2 EP96201446A EP96201446A EP0736363A2 EP 0736363 A2 EP0736363 A2 EP 0736363A2 EP 96201446 A EP96201446 A EP 96201446A EP 96201446 A EP96201446 A EP 96201446A EP 0736363 A2 EP0736363 A2 EP 0736363A2
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EP
European Patent Office
Prior art keywords
membrane
die
plate
cavity
means according
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
Application number
EP96201446A
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German (de)
English (en)
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EP0736363B1 (fr
EP0736363A3 (fr
Inventor
Maris Algeri
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Individual
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Individual
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Priority claimed from ITMO930028A external-priority patent/IT1262594B/it
Priority claimed from IT000068 external-priority patent/IT1262621B/it
Priority claimed from ITMO930123A external-priority patent/IT1262666B/it
Priority claimed from ITMO930159A external-priority patent/IT1262688B/it
Application filed by Individual filed Critical Individual
Publication of EP0736363A2 publication Critical patent/EP0736363A2/fr
Publication of EP0736363A3 publication Critical patent/EP0736363A3/fr
Application granted granted Critical
Publication of EP0736363B1 publication Critical patent/EP0736363B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/346—Manufacture of moulds
    • 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
    • B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/022—Moulds for compacting material in powder, granular of pasta form
    • B30B15/024—Moulds for compacting material in powder, granular of pasta form using elastic mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure

Definitions

  • the invention concerns die means, particularly for pressing ceramic tiles, according to the preamble of claim 1.
  • IT-A-1104511 discloses a method and a device for achieving uniform pressing of ceramic tiles.
  • the method envisages the application to the free surface of the clay mixture introduced into the opening of the die, during the action of pressing, of an elastic moulding surface, or elastic membrane, held in firm contact with the clay mixture, to form one face of the tile, by means of an incompressible fluid: this, to neutralize the effects of zones of disuniform density in the body of the formed tile which would cause uneven shrinkage on firing, with consequent variations in the size, or linearity, of the sides of the tile and/or of the planarity of its surface and with the additional possibility of cracking or breakage.
  • the membrane is provided with an external portion of a more resistant material.
  • the method and the device according to IT-A-1104511 have introduced the fundamental concept of an incompressible fluid, for example, oil, acting on an elastic membrane and interposed between the punch and the membrane.
  • an incompressible fluid for example, oil
  • said method and device do not always enable sufficiently flat (back) surfaces, and hence sufficiently uniform tile thickness, to be readily achieved, particularly in the case of large formats.
  • auxiliary punch base has, on its front face, a chessboard-like array of large flat squares surrounded by channels for the distribution of the liquid, communicating with the internal surface of the overlying membrane by means of large, corresponding square alveoli, forming part of an intermediate punch-plate superimposed on said auxiliary punch base; the smooth inner surface of the overlying (vulcanized) membrane is moulded to afford an array of large, flat square protruding bosses surrounded by channels corresponding exactly to the aforesaid configuration of the upper face of said base of auxiliary punch.
  • This type of mould is also described as forming part of the prior art in IT-U-MI93000071, Fig. 1 and in IT-A-MI92002158, page 3.
  • EP-A-0556163 which is per se an intermediate document but concerns the same type of mould, discloses a mould having a plurality of cavities defined by a lattice to which a membrane is anchored; however the lattice cannot be provided with a membrane obtained by vulcanized elastomeric substance, such as rubber or resin, since, when the liquid elastomeric substance is poured on the lattice, the cavities become completely filled with the elastomeric substance and no room is therefore available for the incompressible fluid.
  • IT-U-214739 discloses a punch for uniform pressing of ceramic tiles, comprising a plurality of cavities among which a lattice is inherenty defined, said cavities containing an incompressible fluid, i. e. oil, and being closed on the side facing the clay mixture to be pressed by means of an elastic membrane, the elastic membrane comprising a central zone and a preripheral zone, those parts of the membrane not covering the cavities being anchored to the body of said punch at respective peripheral and intermediate anchoring zones, each cavity being intermediately occupied by a respective piston and serving as a guide for allowing axial movements of the piston inwardly and outwardly with respect to the cavity.
  • an incompressible fluid i. e. oil
  • Each piston is further externally provided with a seal for the incompressible fluid peripherally engaged with the internal surface of the respective cavity in order to prevent oil from coming into contact with the membrane.
  • the pistons deteriorate the corresponding edges of the membrane when they move into the cavities to compensate disuniform density of the clay mixture.
  • the pistons have to be inserted into the cavities before the liquid elastomeric membrane is poured to coat the face of the punch: therefore a difficulty arises in that the pistons cannot be located at precise axial positions inside the cavity, being it essential, for proper functioning, that each piston be located at intermediate sections of the respective cavity, so that they can be moved outwardly, under the pression of the oil, and also inwardly, under the pression of the clay mixture. Correct positioning of the pistons is also essential in order to avoid excessive variations of thickness of the membrane.
  • EP-A-0556163 and IT-U-214739 are to be considered as traditional non-isostatic dies, in the regions defined betwen adjacent cavities. Thus, non-uniform pressing is obtained in the parts of the tiles corresponding to those regions.
  • a primary object of the present invention is to find isostatic die means that need not be built up of several transverse component parts to enable a membrane to be attached to intermediate supports.
  • a further object is to avoid ridging or curling of the membrane during pressing.
  • a further object is to control the thickness of the soft layer of powders to be pressed, so as to obtain uniform thickness and density in the body of the pressed tile.
  • die means comprising two dies, punch and matrix, at least one die having a cavity closed on the side facing the clay mixture to be pressed by means of an elastic membrane peripherally anchored to the body of said die, characterised in that said elastic membrane is associated to a stiffening plate.
  • the stiffening plate is continuous and fixed to said membrane in such a way that the whole surface of said plate facing the powders to be pressed is anchored to said elastic element.
  • the stiffening plate is provided with a plurality of through-apertures, so that said memrane is anchored to said plate at least in the zones defining the border of said apertures on the side of the plate facing away from the powders to be pressed.
  • stiffening plate has the additional function of allowing the distribution of the incompressible fluid in the cavity of the relative semi-die.
  • the stiffening plate can be eliminated, for example, by a chemical process, whereby a substance that will corrode said plate, but not the membrane, is introduced into the cavity, or by a physical process, whereby, for example, the semi-die is heated to a temperature at which the plate melts, while the membrane remains firmly attached to the cavity.
  • the holes for the introduction and discharge of the incompressible fluid protrude from the bottom of the cavity through a spot-facing that can be blocked with a plug during the moulding of the elastic membrane, the plug remaining partially incorporated in the membrane itself.
  • those areas of the bottom of the cavity of the die where the membrane should not adhere can be sheathed in plastic, or paper, with holes punched where said apertures occur.
  • the cavity communicates with a device controlling the volume of fluid in the cavity of the said at least one die, said controlling device serving to alter the deformation of said membrane during pressing.
  • the advantages offered by this invention are: lower manufacturing costs; lower running costs; possibility of renovating the die; improved functionality; possibility of adopting various, not only square, designs; maximum stability in the areas of adhesion; possibility of transforming traditional punches, even if en bloc, into punches according to the invention by the simple application of a distributing plate to, or above, the active surface of the punch itself; possibility of more efficient moulding of the membrane; greater protection of the membrane; possibility of greater control over the flexing of the membrane, reduction in surface defects; ease of removal of pressed items, facilitated particularly with the adoption of the device regulating the volume of fluid.
  • the Figures show: a punch P, corresponding to the back of the tile and having a membrane 5, for example of vulcanized rubber and adapting itself to the disuniformity of the mass of mixture placed in the mould of the die to obtain a uniform compression in the mass itself, in its every point during pressing.
  • a punch P corresponding to the back of the tile and having a membrane 5, for example of vulcanized rubber and adapting itself to the disuniformity of the mass of mixture placed in the mould of the die to obtain a uniform compression in the mass itself, in its every point during pressing.
  • Elastic membrane 5 also having intermediate indentations 104 and an indented peripheral border 9 whose base is coplanar with those of indentations 6 that, during pressing, form the so called “feet” or support ribs on the back of the tile, or their complements.
  • holes 107 for the introduction of liquid 11, for example oil, after the membrane has been moulded, after the possible chemical disintegration and/or physical elimination of the material of the plate, for example, by making use of the same hole; hole 107 being closeable with plug 325 ( Figures 4 and 11) to prevent it from becoming filled with the material the membrane is made of when it is poured or else when it is being moulded.
  • the plug itself - for example, cylindrical - penetrates in a corresponding hole in a plate 111, when still in situ, and, together with one or more other analogous plugs, act as a reference pin for the plate.
  • the elastic membrane 5 may be stiffened transversely by means of, advantageously, inextensible fibres inserted in it, during vulcanization: this prevents marked undulation, whilst conserving longitudinal elasticity.
  • feet or ribs on the back of the tile can be of any other convenient form, for example, even of the type having cells in the form of a honeycomb.
  • the punch can perform the function of the baffle plate and vice-versa.
  • the Figures also show: a top face of punch P having anchorage grooves 102, even having sides diverging downwards thereby creating undercut, covered with adhesive substance, and peripheral frame 103 with internal face similarly treated: grooves 102 being filled by appendages 103a of the elastic membrane; 104, grooves on the external surface of elastic membrane 5 vulcanized in situ, reproducing in relief the design of the back of the tile to be formed.
  • the plate 111 is of a thickness that ranges, for example, from a few tenths of a millimeter to a few millimeters and is interposed between the bottom surface of a cavity in the body of punch P and the lower, smooth surface of membrane 5 that provides an extensive and continuous vulcanized anchorage surface 112 ( Figure 2) so as to avoid rippling and therefore excessive undulation.
  • plate 111 is able to absorb the loads set up in the membrane caused by disuniformities in the density and/or composition of the powders to be pressed; in particular, the plate has to have a modulus of elasticity that enables it to deflect elastically and to compensate for the differences in reaction loads transmitted by the powder to the membrane: the adoption of a continuous floating plate has the advantage of being able to compensate deformation during pressing over wide areas.
  • the Figures also show: 114 ( Figure 3), the punch and 115, the matrix of the die; 116, the external peripheral anchorage zone of the membrane; 301 ( Figure 4) is a die including a punch P in which there is at least one cavity, or recess, 303 in which a deformable membrane 5 in elastic material, for example rubber, is anchored, for example, by vulcanization, or glueing, which is anchored on a plate 111 of a stiffer material than that forming membrane 5, for example a metal.
  • Membrane 5 is, as a rule, vulcanized on plate 111 and has a peripheral lip 306 so shaped to be inserted in a corresponding seat 307 of the recess.
  • an elastic means is interposed acting also as a peripheral seal 308, anular and deformable, which ensures sealing whilst permitting relative perimetric displacement between plate and imprint.
  • Punch P has holes 107 to introduce fluid in chamber "C" which is defined by the base of the punch, plate and perimetric elastic medium prior to the introduction of the fluid due to the plate 111 resting on elastic medium 308.
  • the top end of threaded holes 312 can open out into cylindrical seats 314 in which can be placed corresponding elastically deformable spacer elements 311: advantageously, the screws have support caps 315 at their top end: said screws have the further function of adjusting the preloading of spacer elements 311 so as to vary the trim of the membrane during the loading of the powders.
  • the plate 316 has a greater thickness and the membrane is in contact only with its rear surface: the punch has a peripheral step with sharp corner in relation to which a first perimetric elastic element 308a and a second perimetric elastic element 308b are assembled: between step 319 and the corresponding seat 320 of plate 316 a seal 321 is assembled made of a material such as rubber.
  • 322 indicates a moulding matrix for the membrane that has protuberances 323 distributed that create in membrane 5 indentations which will create the so-called “feet” or support ribs on the back of the tile.
  • plate 111 is kept in the correct position with the insertion through punch P of pins 325, that is a pair adjusting-screw dowels 313a.
  • Q indicates the material to be pressed.
  • Figures 6 and 9 show how the screws 313 enable the positioning of the various areas of the plate 111 at the desired elevations, functioning as reference elements for the plate during the moulding phase.
  • Figure 10 shows a further possible use for the invention: it shows how punch P can be used as an upper pressure-equalizing punch and made to interact with another beneath whose sole function is a controlling one; adjusting screws 313 adjusts the trim of the plate, enabling thicknesses S1 and S2 of the material to be pressed to be predetermined.
  • Figures 15, 16 show a further structural variation of the die, in which plate 111 is divided in two parts, one a floating, stiffening element 362 for membrane 5, the other fixed to the base of the cavity, for example, by means of screws 363, in such a way that its outer edge extends inside the seat in the base of the cavity for the lip 306 of the elastic membrane 5, so as to create an undercut seal 361 to prevent the fluid from leaking: in a particular case not shown the lip can cover entirely the underside of the plate 111 acting as a sealing a support element for the plate.
  • elastic elements 360 are inserted between the floating, stiffening part 362 of membrane 5 and the sides of the seat of lip 306: these elastic elements have the function of lifting membrane 5 after pressing and of centering stiffening floating plate 362 in relation to the cavity of the corresponding die.
  • Intermediate layer 364 of membrane 5 is anchored to stiffening plate 362 and distanced from underlying moulding plate 111, so as to include a truncated cone stopper 365 in relation to each fluid inlet hole 107.
  • Figures 40, 41 show a version of die in which the plate 111 is made adherent on both its sides to membrane 5, as in the version of Figure 9: with respect to this version, however, lower layer 367 of the said membrane has rim 366 inserted in a groove in the base of the cavity of the corresponding die, the height of rim 366 being such as to define chamber C for the fluid.
  • Layer 367 and the corresponding rim 366 can be pre-formed as hollow caps, or even integral 368, 369 with membrane 5 as shown in Figure 18, in which case there also being elastic elements 360 for the formation of chamber C.
  • the invention as described fulfills its objects, in particular in the way in which chamber C between plate 111 and imprint 303 remains defined without the intervention of thrust of the pressurized fluid that is introduced, due to the prior lifting of the plate itself which, on completion of the vulcanization phase, is supported on perimetric elastic elements 308, or on spacer elements 311; furthermore, it can assume a non planar configuration, but predetermined as required, in readiness for the loading of the material to be pressed.
  • perimetric elastic means 308 being toroidal in form, is substituted with elastic means 350 having a trapezoidal section, and cooperates with lip 306 of membrane 5: this providing increased safety against leakage of the liquid.
  • the peripheral coupling joint between membrane 5 and plate 111 consists of a plurality of annular extensions 352, for example, a pair of extensions, defining, between them, a groove 353 in which the moulding membrane is anchored: the said annular extensions can be of different thicknesses, one with respect to the other, and may, furthermore, penetrate into lip 306 of membrane 5 to differing depths; furthermore, they can be parallel to each other or inclined with respect to one another.
  • Figure 14 shows how the lip 306 can have a pair of opposing appendages 354, one penetrating plate 111, the other penetrating the body of punch P: this to further improve sealing against leakages of the fluid.
  • the lower portion of the moulding plate is limited to a peripheral frame 372 extending towards the seat of lip 306 so as to divide it into two limbs during moulding, in a way analogous to that of Figure 35.
  • Each limb of lip 306 can have an annular sealing appendage 370, 371 inserted in corresponding grooves respectively in the body of matrix P and in floating plate 111.
  • Frame 372 can be fixed to the base of the cavity by means of screws 363, or simply placed on it, in both cases the said frame being treated with a non-stick agent so as not to adhere to the material making up membrane 5 during moulding: this contributes to improving the coupling of the membrane to the semi-die.
  • elastic elements 308, 350 have the double function of lifting the plate and of sealing against fluid leakage from chamber C, whereas elastic elements 311, 360 do not have a sealing function, being therefore isolated, that is, peripherally interrupted to allow the passage of fluid into the cavity.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Compositions Of Oxide Ceramics (AREA)
EP96201446A 1993-03-17 1994-03-11 Matrice, en particulier pour le pressage de carreaux en céramique Expired - Lifetime EP0736363B1 (fr)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
ITMO930028A IT1262594B (it) 1993-03-17 1993-03-17 Stampo atto a rendere uniforme la pressatura nelle piastrelle ceramiche.
ITMO930028 1993-03-17
ITMO930068 1993-05-21
IT000068 IT1262621B (it) 1993-05-21 1993-05-21 Perfezionamenti negli stampi per la pressatura uniforme delle piastrelle ceramiche.
ITMO930123 1993-09-29
ITMO930123A IT1262666B (it) 1993-09-29 1993-09-29 Stampo per la pressatura isostatica, particolarmente di piastrelle ceramiche a nervature profonde.
ITMO930159A IT1262688B (it) 1993-12-15 1993-12-15 Stampo perfezionato per la pressatura uniforme di piastrelle ceramiche
ITMO930159 1993-12-15
EP94200624A EP0620089B1 (fr) 1993-03-17 1994-03-11 Méthode et matrice de pressage isostatique, en particulier pour la fabrication de carreaux en céramique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP94200624.8 Division 1994-03-11

Publications (3)

Publication Number Publication Date
EP0736363A2 true EP0736363A2 (fr) 1996-10-09
EP0736363A3 EP0736363A3 (fr) 1997-02-05
EP0736363B1 EP0736363B1 (fr) 1997-12-03

Family

ID=27453044

Family Applications (3)

Application Number Title Priority Date Filing Date
EP96201446A Expired - Lifetime EP0736363B1 (fr) 1993-03-17 1994-03-11 Matrice, en particulier pour le pressage de carreaux en céramique
EP96200762A Revoked EP0720896B1 (fr) 1993-03-17 1994-03-11 Matrice de pressage isostatique
EP94200624A Expired - Lifetime EP0620089B1 (fr) 1993-03-17 1994-03-11 Méthode et matrice de pressage isostatique, en particulier pour la fabrication de carreaux en céramique

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP96200762A Revoked EP0720896B1 (fr) 1993-03-17 1994-03-11 Matrice de pressage isostatique
EP94200624A Expired - Lifetime EP0620089B1 (fr) 1993-03-17 1994-03-11 Méthode et matrice de pressage isostatique, en particulier pour la fabrication de carreaux en céramique

Country Status (4)

Country Link
EP (3) EP0736363B1 (fr)
AT (1) ATE146115T1 (fr)
DE (1) DE69401084T2 (fr)
ES (3) ES2111409T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1008438A1 (fr) * 1998-12-09 2000-06-14 Ronflette S.A. Châssis pour presses , en particulier pour presses utilisées dans la fabrication d'éléments en céramique
EP1714760A3 (fr) * 2005-04-21 2007-08-01 Trebax S.R.L. Moule pour le pressage de carrreaux en céramique
EP1958745A2 (fr) * 2007-02-16 2008-08-20 MARTINELLI ETTORE S.r.l. Matrice isostatique pour le pressage de carreaux et procédé de fabrication correspondant
ITMO20100183A1 (it) * 2010-06-18 2011-12-19 Trebax S R L Stampo per fabbricare manufatti ceramici.
IT201900002749A1 (it) * 2019-02-26 2020-08-26 Officina Ferrari Carlo Spa Tampone per la pressatura di polveri

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1269262B (it) * 1994-09-13 1997-03-26 Maris Algeri Stampo isobarico per la pressatura di piastrelle ceramiche, e metodo relativo
EP0759346B1 (fr) * 1995-08-18 2001-11-21 Carlo Antonio Camorani Matrice pour le pressage isostatique
IT1279893B1 (it) * 1995-12-18 1997-12-18 F D S S R L Semistampo per piastrelle ceramiche perfezionato
DE19629413A1 (de) * 1996-07-22 1998-01-29 Erlus Baustoffwerke Keramischer Falzdachziegel
DE19731146C1 (de) * 1997-07-21 1999-02-25 Dietrich Engmann Isostatischer Preßstempel zum Herstellen keramischer Fliesenrohlinge und Presse mit diesem Preßstempel
ES2181514B1 (es) * 1999-07-15 2004-06-01 Constantino Parra Rodriguez Dispositivo para regular la compactacion en punzones para prensas.
ITRE20050033A1 (it) * 2005-03-25 2006-09-26 Cbm Srl Punzone ceramico tipo marca
ITMO20080040A1 (it) * 2008-02-15 2009-08-16 Sacmi Apparato e metodo di pressatura
IT1396712B1 (it) * 2009-11-18 2012-12-14 Ferrari Carlo Societa Per Azioni Off Punzone isostatico per piastrelle.
ITRM20100294A1 (it) * 2010-05-31 2011-12-01 Mass Spa "metodo e stampo per la formatura di manufatti ad uso civile ed ornamentale"
ITMO20110174A1 (it) * 2011-07-18 2013-01-19 Gape Due S P A Stampo isostatico, particolarmente per piastrelle ceramiche
ITMI20111917A1 (it) * 2011-10-24 2013-04-25 Martinelli Ettore Srl Tampone adattativo per la pressatura di prodotti ceramici, quali piastrelle e simili
ITPD20120277A1 (it) * 2012-09-20 2014-03-21 Mass Spa Stampo per piastrelle
ITMI20131699A1 (it) * 2013-10-15 2015-04-16 Martinelli Ettore Srl Tampone isostatico di pressatura per la produzione di piastrelle e simili e metodo di realizzazione
IT201600079937A1 (it) * 2016-07-29 2018-01-29 I Dea Re S R L Tampone per la formatura di piastrelle
CN107139315A (zh) * 2017-01-23 2017-09-08 佛山市新鹏工业服务有限公司 瓷砖成型液压模具
IT201700036509A1 (it) * 2017-04-03 2018-10-03 I Dea Re S R L Tampone isostatico per la formatura di piastrelle
ES2745575A1 (es) * 2018-08-30 2020-03-02 Asitec Ceram S L Punzon isostatico
IT202100014210A1 (it) * 2021-05-31 2022-12-01 Annovi S R L Tampone isostatico per la pressatura di polveri ceramiche

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1160590A (en) * 1967-03-20 1969-08-06 Yuken Kogyo Co Ltd An improved method and apparatus for the manufacture of Dish-Shaped Ceramic Articles
US4370120A (en) * 1978-11-28 1983-01-25 Foster Robert D Compacting press with expandable body
US4937025A (en) * 1987-09-30 1990-06-26 Hydra Corporation Molding apparatus and method
EP0556163A1 (fr) * 1992-02-12 1993-08-18 SICHENIA GRUPPO CERAMICHE S.p.A. Matrice pour tuiles céramiques

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1234151B (it) * 1989-05-30 1992-05-04 Mass Spa Metodo per la coniatura di piastrelle ceramiche uniformemente compattate, mezzi per attuare il detto e piastrelle cosi' ottenute
IT1258686B (it) * 1992-05-15 1996-02-27 Mass Spa Tampone ceramico tipo muratura

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1160590A (en) * 1967-03-20 1969-08-06 Yuken Kogyo Co Ltd An improved method and apparatus for the manufacture of Dish-Shaped Ceramic Articles
US4370120A (en) * 1978-11-28 1983-01-25 Foster Robert D Compacting press with expandable body
US4937025A (en) * 1987-09-30 1990-06-26 Hydra Corporation Molding apparatus and method
EP0556163A1 (fr) * 1992-02-12 1993-08-18 SICHENIA GRUPPO CERAMICHE S.p.A. Matrice pour tuiles céramiques

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1008438A1 (fr) * 1998-12-09 2000-06-14 Ronflette S.A. Châssis pour presses , en particulier pour presses utilisées dans la fabrication d'éléments en céramique
EP1714760A3 (fr) * 2005-04-21 2007-08-01 Trebax S.R.L. Moule pour le pressage de carrreaux en céramique
EP1958745A2 (fr) * 2007-02-16 2008-08-20 MARTINELLI ETTORE S.r.l. Matrice isostatique pour le pressage de carreaux et procédé de fabrication correspondant
EP1958745A3 (fr) * 2007-02-16 2010-12-01 MARTINELLI ETTORE S.r.l. Matrice isostatique pour le pressage de carreaux et procédé de fabrication correspondant
ITMO20100183A1 (it) * 2010-06-18 2011-12-19 Trebax S R L Stampo per fabbricare manufatti ceramici.
EP2397292A1 (fr) * 2010-06-18 2011-12-21 Trebax S.R.L. Moule pour la production de produits céramiques
US8647107B2 (en) 2010-06-18 2014-02-11 Trebax S.R.L. Die for manufacturing ceramic products
IT201900002749A1 (it) * 2019-02-26 2020-08-26 Officina Ferrari Carlo Spa Tampone per la pressatura di polveri

Also Published As

Publication number Publication date
EP0736363B1 (fr) 1997-12-03
EP0720896B1 (fr) 1997-12-03
DE69401084D1 (de) 1997-01-23
ATE146115T1 (de) 1996-12-15
DE69401084T2 (de) 1997-07-10
EP0620089A2 (fr) 1994-10-19
EP0620089A3 (fr) 1995-03-15
EP0736363A3 (fr) 1997-02-05
ES2097607T3 (es) 1997-04-01
ES2111409T3 (es) 1998-03-01
EP0720896A1 (fr) 1996-07-10
EP0620089B1 (fr) 1996-12-11
ES2112073T3 (es) 1998-03-16

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