EP1008428A2 - Procédé pour la fabrication d'un moule de presse , en particulier pour la fabrication de tuiles , et moule de presse obtenu - Google Patents

Procédé pour la fabrication d'un moule de presse , en particulier pour la fabrication de tuiles , et moule de presse obtenu Download PDF

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Publication number
EP1008428A2
EP1008428A2 EP99120273A EP99120273A EP1008428A2 EP 1008428 A2 EP1008428 A2 EP 1008428A2 EP 99120273 A EP99120273 A EP 99120273A EP 99120273 A EP99120273 A EP 99120273A EP 1008428 A2 EP1008428 A2 EP 1008428A2
Authority
EP
European Patent Office
Prior art keywords
press mold
shaping surfaces
roughened
mold according
wear
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.)
Withdrawn
Application number
EP99120273A
Other languages
German (de)
English (en)
Other versions
EP1008428A3 (fr
Inventor
Jochem Händle
Artur Lorenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RIETER-WERKE GMBH
Original Assignee
Rieter-Werke Handle KG
Rieter Werke Haendle GmbH
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 Rieter-Werke Handle KG, Rieter Werke Haendle GmbH filed Critical Rieter-Werke Handle KG
Publication of EP1008428A2 publication Critical patent/EP1008428A2/fr
Publication of EP1008428A3 publication Critical patent/EP1008428A3/fr
Withdrawn legal-status Critical Current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
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/04—Discharging the shaped articles
    • B28B13/06—Removing the shaped articles from moulds
    • B28B13/065—Removing the shaped articles from moulds by applying electric current or other means of discharging, e.g. pneumatic or hydraulic discharging means
    • 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
    • B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
    • 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
    • B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking

Definitions

  • Roof tiles are preferably made on presses.
  • preformed clay chunks are used reshaped in a press tool in such a way that it is the desired one after the pressing process has been completed Get shape.
  • Plaster, rubber or metal molds are preferably used as pressing tools.
  • the Forming is possible due to the plasticity of the clay during the forming process begins to flow, thus filling the form completely and thereby the final one Generate shape of the roof tile molding.
  • Plaster molds are distinguished on the one hand by the excellent detachment behavior of the clay from the plaster of the press mold after it has been opened.
  • the restoration of plaster molds after their wear is simple and inexpensive. Their main disadvantage, however, is this wear, since the constant abrasive loading of the shaping surfaces leads to minimal downtimes, which ideally only correspond to around 2000 pressings.
  • the continuous process of roof tile pressing - roof tile presses usually work with stroke rates of 10 to 20 pressings per minute - must be interrupted on average every two hours due to a change in shape, which significantly reduces the efficiency of the overall system.
  • the constant restoration of the plaster molds as well as the necessary personnel and material expenditure represent a considerable cost factor.
  • Ceramic molds have often been used on a trial basis to replace the proven plaster molds. Ceramic molds have a similar pore structure to gypsum molds, but after a limited period of use they increasingly show adhesive effects that make further use impossible.
  • the favorable friction conditions and thus a detachment behavior, which is typical for plaster molds, by the inventive Roughen all or part of the shaping surfaces of the metal molds achieved which are preferably made of chrome-nickel steel or gray cast iron.
  • the roughness achieved can be achieved by depositing on the roughened shaping surfaces of a wear-resistant protective layer made of chrome, nickel or a wear-resistant plastic such as PTFE, the thickness of which is less than the respective roughness number RZ, which can be between 10 and 50 ⁇ m be frozen ", ie retained over the lifespan of the mold. Such deposition is unnecessary if the roughness of the shaping surfaces is at least largely retained over the lifespan due to the production and / or material selection.
  • upper and lower molds composed of several individual parts are conceivable, where the later visible surfaces of the product from a block of a certain type of metal can be made, however, the surrounding folding areas from separate blocks with appropriately adjusted roughness.
  • such can consist of individual Modular forms assembled modules, whereby the exchange of individual, highly stressed mold surfaces is made possible.
  • the roughened areas are in the Area of the folds, but not in the recesses provided there, in the production plant are not exposed to strong smoothing or polishing effects, but on the particularly exposed, e.g. protruding parts of the forms.
  • the shaping surfaces 3 and 5 of the upper mold 2 and the lower mold 4 all roughened in the manner described.
  • the shaping surfaces are again only in the area of the folds 6, 8, 10, 12, but here continuously, ie also into the depths of the folds, in the manner described at the bold locations 66, 86 , 106 and 126 roughened and if necessary with the roughness protective "protective layers coated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Forging (AREA)
EP99120273A 1998-10-13 1999-10-11 Procédé pour la fabrication d'un moule de presse , en particulier pour la fabrication de tuiles , et moule de presse obtenu Withdrawn EP1008428A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19847087 1998-10-13
DE19847087A DE19847087C1 (de) 1998-10-13 1998-10-13 Verfahren zum Herstellen einer Preßform, insbesondere zum Erzeugen von Dachziegeln, und Preßform

Publications (2)

Publication Number Publication Date
EP1008428A2 true EP1008428A2 (fr) 2000-06-14
EP1008428A3 EP1008428A3 (fr) 2001-09-26

Family

ID=7884271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99120273A Withdrawn EP1008428A3 (fr) 1998-10-13 1999-10-11 Procédé pour la fabrication d'un moule de presse , en particulier pour la fabrication de tuiles , et moule de presse obtenu

Country Status (3)

Country Link
EP (1) EP1008428A3 (fr)
DE (1) DE19847087C1 (fr)
HU (1) HUP9903466A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003011544A1 (fr) * 2001-07-27 2003-02-13 Ogden Industries Limited Procede de fabrication de tuiles, tuiles, structure de toiture et moule

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8313321B2 (en) 2009-06-05 2012-11-20 Ness Inventions Inc. Mold assembly employing fluid heating
AT518323B1 (de) * 2016-02-29 2018-03-15 Wienerberger Ag Pressform für Dachziegel
CN114368057A (zh) * 2022-01-18 2022-04-19 萍乡市汇能电气有限公司 一种悬式陶瓷绝缘子的反吹式成型模具及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE625384C (de) * 1929-02-21 1936-02-08 Carl Ludowici Komm Ges Auf Akt Verfahren zum Herstellen von Press- oder Giessformen fuer Dachziegel mit gerauhter Oberflaeche
AT393861B (de) * 1983-04-08 1991-12-27 Bramac Dachsteinwerk Gmbh Schalungsform, verfahren zu deren herstellung sowie einrichtung zur durchfuehrung des verfahrens
FR2678973A1 (fr) * 1991-07-08 1993-01-15 Auxiliaire Entreprises Soc Procede pour eviter, au decoffrage, l'arrachement de beton coffre avec banches metalliques.
JPH08135179A (ja) * 1994-11-09 1996-05-28 Takashima:Kk コンクリート型枠及びコンクリート型枠成型用金型
EP0868985A1 (fr) * 1997-03-27 1998-10-07 RIETER-WERKE HÄNDLE Gmbh & Co. KG Moule pour le préssage d'articles à partir de masses à l'état plastique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1743166U (de) * 1956-12-06 1957-04-11 Hans Kuhn Metall- oder gipsform fuer tonmaterial.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE625384C (de) * 1929-02-21 1936-02-08 Carl Ludowici Komm Ges Auf Akt Verfahren zum Herstellen von Press- oder Giessformen fuer Dachziegel mit gerauhter Oberflaeche
AT393861B (de) * 1983-04-08 1991-12-27 Bramac Dachsteinwerk Gmbh Schalungsform, verfahren zu deren herstellung sowie einrichtung zur durchfuehrung des verfahrens
FR2678973A1 (fr) * 1991-07-08 1993-01-15 Auxiliaire Entreprises Soc Procede pour eviter, au decoffrage, l'arrachement de beton coffre avec banches metalliques.
JPH08135179A (ja) * 1994-11-09 1996-05-28 Takashima:Kk コンクリート型枠及びコンクリート型枠成型用金型
EP0868985A1 (fr) * 1997-03-27 1998-10-07 RIETER-WERKE HÄNDLE Gmbh & Co. KG Moule pour le préssage d'articles à partir de masses à l'état plastique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 09, 30. September 1996 (1996-09-30) & JP 08 135179 A (TAKASHIMA:KK), 28. Mai 1996 (1996-05-28) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003011544A1 (fr) * 2001-07-27 2003-02-13 Ogden Industries Limited Procede de fabrication de tuiles, tuiles, structure de toiture et moule

Also Published As

Publication number Publication date
DE19847087C1 (de) 2000-01-05
HUP9903466A3 (en) 2001-02-28
HU9903466D0 (en) 1999-12-28
HUP9903466A2 (hu) 2000-08-28
EP1008428A3 (fr) 2001-09-26

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