HU901850D0 - Process and apparatus for manufacturing building units of plaster of excellent quality preferably marble-like surface - Google Patents

Process and apparatus for manufacturing building units of plaster of excellent quality preferably marble-like surface

Info

Publication number
HU901850D0
HU901850D0 HU901850A HU185090A HU901850D0 HU 901850 D0 HU901850 D0 HU 901850D0 HU 901850 A HU901850 A HU 901850A HU 185090 A HU185090 A HU 185090A HU 901850 D0 HU901850 D0 HU 901850D0
Authority
HU
Hungary
Prior art keywords
plaster
elements
moulding material
pressure elements
air
Prior art date
Application number
HU901850A
Other languages
Hungarian (hu)
Inventor
Michael Schmidt
Walter Ast
Wilfried Flohr
Wilfried Roessing
Achim Rohse
Wolfgang Schulz
Original Assignee
Bauakademie Ddr
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 Bauakademie Ddr filed Critical Bauakademie Ddr
Publication of HU901850D0 publication Critical patent/HU901850D0/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/003—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by an elastic bag or diaphragm expanded by fluid pressure
    • 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
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/021—Ram heads of special form
    • 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
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/44—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for treating with gases or degassing, e.g. for de-aerating

Landscapes

  • 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)
  • Producing Shaped Articles From Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to the production of plaster elements having decorative visible faces of high surface quality, widely used in the construction industry. The plaster elements can be made in various configurations, in a single colour or marbled. This is achieved according to the invention by a method in which a multi-layer moulding material consisting of a water/plaster mixture and dried plaster powder is covered in a mould with a hygroscopic and/or open-cell material of low compressibility and then water-compacted by pressure elements with simultaneous removal of air and subsequently compressed with the exclusion of air. A positive pressure is built up in the moulding material and the material covering it and this is maintained at least in part until dimensional stability of the plaster element has been attained. The plaster element is then released with the aid of the pressure elements. The device according to the invention is distinguished by the fact that an upper part is designed as a holder with pressure elements articulated on it on the top and bottom. The lower part for holding the moulding material comprises a dimensionally stable frame with an integrated separating frame and is supported in airtight fashion on the mould bottom. The upper part and lower part can be locked together airtightly via a seal. <IMAGE>
HU901850A 1989-03-30 1990-03-27 Process and apparatus for manufacturing building units of plaster of excellent quality preferably marble-like surface HU901850D0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD327070A DD300966A7 (en) 1989-03-30 1989-03-30 Method and device for producing in particular marble-like gypsum elements with visible surfaces of high surface quality

Publications (1)

Publication Number Publication Date
HU901850D0 true HU901850D0 (en) 1990-08-28

Family

ID=5608064

Family Applications (1)

Application Number Title Priority Date Filing Date
HU901850A HU901850D0 (en) 1989-03-30 1990-03-27 Process and apparatus for manufacturing building units of plaster of excellent quality preferably marble-like surface

Country Status (6)

Country Link
EP (1) EP0390302B1 (en)
AT (1) ATE120122T1 (en)
CA (1) CA2013151A1 (en)
DD (1) DD300966A7 (en)
DE (1) DE59008740D1 (en)
HU (1) HU901850D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676386A1 (en) * 1991-05-15 1992-11-20 Scient Tech Batimen Centre METHOD AND DEVICE FOR MANUFACTURING BUILDING BLOCKS FROM A HYDRAULIC BINDER SUCH AS PLASTER, AN INERT LOAD SUCH AS SAND AND WATER.
GB9225809D0 (en) * 1992-12-10 1993-02-03 Dryflow Ltd Method of and means for moulding fibrous hollow products
US5788996A (en) * 1993-11-12 1998-08-04 Tecfim Apparatus for manufacturing building blocks from a hydraulic binder such as plaster, an inert filler such as sand, and water
US7096625B1 (en) 1994-02-01 2006-08-29 Martin Hering Method of displaying advertising on a turnstile
DE19729484C2 (en) * 1997-07-10 2003-04-30 Anton Wilhelm Process for casting castings, in particular decorative elements made of plaster or concrete, and device for carrying out the process
FR2786428B1 (en) * 1998-11-26 2001-02-02 Jean Brouard INSTALLATION AND MOLDS FOR MANUFACTURING CONSTRUCTION ELEMENTS FROM A MIXTURE OF GYPSUM, A FILLER AND WATER
CN105599111B (en) * 2016-01-05 2018-05-25 佛山市恒力泰机械有限公司 A kind of adobe method for exhausting of ceramic brick press

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203655B (en) * 1961-03-14 1965-10-21 Bauakademie Berlin Deutsche Process for the production of multi-layer unpressed or lightly pressed panels and molded parts made of fiber-reinforced plaster of paris
DE1809649A1 (en) * 1967-08-10 1970-10-15 Klaus Kirner Pressure-mould and frame for heavy ceramic - hardware
FR2157013A5 (en) * 1971-10-13 1973-06-01 France Etat
DE2337728A1 (en) * 1973-07-25 1975-02-06 Kurt Glass Chem Fabrik Composite concrete plates - have synthetic resin contg. facing layer on light wt. concrete backing
IT1038050B (en) * 1975-05-13 1979-11-20 Bettonica L IMPROVEMENTS ON HYDRAULIC PRESSES INTENDED PARTICULARLY FOR THE MANUFACTURE OF CERAMIC AND SIMILAR TILES, PLATES AND CUPS
SU668809A1 (en) * 1976-06-21 1982-06-23 Ордена Трудового Красного Знамени Институт Тепло- И Масообмена Им.А.В.Лыкова Method for making gypsum lining slabs
DE2905609A1 (en) * 1979-02-14 1980-08-21 Edel Baudekoration Castings of imitation marble from gypsum and pigment - by using hard surfaced smooth moulds of acrylic! glass
JPS5844054B2 (en) * 1980-05-21 1983-09-30 株式会社 三石深井鉄工所 Vacuum brick forming equipment
US4373889A (en) * 1981-02-13 1983-02-15 Crossley Machine Company, Inc. Hydraulic press assembly

Also Published As

Publication number Publication date
EP0390302B1 (en) 1995-03-22
DD300966A7 (en) 1992-09-17
CA2013151A1 (en) 1990-09-30
ATE120122T1 (en) 1995-04-15
EP0390302A2 (en) 1990-10-03
EP0390302A3 (en) 1991-09-04
DE59008740D1 (en) 1995-04-27

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