EP0311145A2 - Procédé et dispositif pour fabriquer des récipients ouverts d'un côté au moins, en ciment ou en mortier de ciment et une armature - Google Patents

Procédé et dispositif pour fabriquer des récipients ouverts d'un côté au moins, en ciment ou en mortier de ciment et une armature Download PDF

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Publication number
EP0311145A2
EP0311145A2 EP88118051A EP88118051A EP0311145A2 EP 0311145 A2 EP0311145 A2 EP 0311145A2 EP 88118051 A EP88118051 A EP 88118051A EP 88118051 A EP88118051 A EP 88118051A EP 0311145 A2 EP0311145 A2 EP 0311145A2
Authority
EP
European Patent Office
Prior art keywords
vessel
mold
cement
mixture
reinforcement
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
EP88118051A
Other languages
German (de)
English (en)
Other versions
EP0311145A3 (en
EP0311145B1 (fr
Inventor
Wolfgang Nohlen
Hubert Hasenfratz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP88118051A priority Critical patent/EP0311145B1/fr
Priority to DE8888118051T priority patent/DE3686332D1/de
Priority to AT88118051T priority patent/ATE79070T1/de
Publication of EP0311145A2 publication Critical patent/EP0311145A2/fr
Publication of EP0311145A3 publication Critical patent/EP0311145A3/de
Application granted granted Critical
Publication of EP0311145B1 publication Critical patent/EP0311145B1/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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • 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
    • B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
    • B28B1/32—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by projecting, e.g. spraying
    • 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
    • B28B7/0091—Transformable moulds allowing the change of shape of an initial moulded preform by preform deformation or the change of its size by moulding on the preform

Definitions

  • the invention relates to a method and a device for producing vessels open at least on one side from cement, optionally from cement mortar and from a reinforcement according to the preamble of the patent request.
  • the invention aims at the production of weather-resistant utensils which have a shape adapted to their respective use. According to the invention, therefore, flower pots, plant bowls, rain barrels, garbage containers or similar utility containers can be produced, which are predominantly set up outdoors and are there in particular exposed to the attack of the aggressive atmosphere. These vessels can be designed according to individual designs in predetermined rotationally symmetrical shapes. These vessels get their weather resistance from the material from which they are made. The color of the vessels is also weatherproof, but is largely arbitrary.
  • the vessels produced by the method according to the invention are smooth on the outside and therefore have the advantages based thereon. This includes in particular dirt repellency, attractive appearance, etc.
  • the vessels according to the invention are hollow bodies which are relatively thin-skinned in the interest of the lowest possible weight and a correspondingly favorable ratio of material expenditure and vessel size.
  • vessels of this type are required to have a high level of strength, which not only has to withstand the subsequent loading of the vessel with its filling, but should also include resistance to impact and shock.
  • the invention is based on previously known vessels made of asbestos cement.
  • a mixture is used in which the plate-shaped mineral is added to the cement or cement mortar in a predetermined proportion.
  • the mixture is made in free-fall or compulsory mixers, such as those used for the preparation of bitumen or mortar.
  • the mixture is introduced into molds provided with an inner formwork and hardens in the mold space between the formwork skins of the inner and outer formwork.
  • the plate shape of the mineral leads to smooth inner and outer surfaces because the mineral particles are in the wet Orient the mixture accordingly and later overlap it at least partially.
  • the mixture from which the previously known vessels are made has been suspected for some time of releasing carcinogenic particles under the influence of the atmospheres.
  • the method by which such vessels are made leads to relatively thick walls and bottoms of the vessels compared to their size, i. H. their area dimensions or their volume. This is undesirable because of the material used, but also because of the weight of the container and often also for design reasons.
  • the object of the invention is to produce vessels which are harmless from a health standpoint with economical use of materials and with sufficient freedom of design, which are light but sufficiently resistant.
  • glass fiber cement is used.
  • This material is known for itself. It consists of pure cement or cement mortar and glass fibers of a suitable length and is used essentially according to a method that deviates from the invention. This is because the glass fibers provided with a special size and cut to length are introduced into the mixture before it is applied. The mixture is therefore also usually prepared in the usual free-fall or compulsory mixers. Then the mixture is either sprayed. However, this results in an orientation of the fibers, which is unsuitable for the manufacture of the vessels mentioned for the reasons mentioned at the beginning. Or, after it has been introduced, the mixture is hardened in a mold space formed between an inner and an outer formwork.
  • the known method is not suitable for thin-walled moldings, because the glass fibers, even if they have a short length, do not align parallel to the mold walls in the introduced mixture and result in unsightly outer surfaces and unsuitable surfaces Reinforcements result that do not develop sufficient strength in thin-shelled bodies.
  • the glass fibers can have a length of up to 3 cm.
  • Cement can be used as white cement or with the addition of Fe2O3 color in the mixture.
  • Common planters are z. B. with two to five, preferably three layers.
  • These vessels are built up from the moist, sprayed-on layers, in which the glass fibers apparently also overlap each other in layers, whereby on the one hand sufficient reinforcement is achieved and on the other hand the glass fibers do not protrude from the walls or are partially visible from the outside.
  • This structure of the body of the vessel takes place without inner formwork solely through the adhesion of the wet to moist mixture on the inner skin of the outer form.
  • This skin then consists either of fabric or of a metal sheet, preferably coated with formwork oil.
  • the adhesion achieved when spraying is maintained in the moist state of the mixture until it has hardened.
  • Such thin-walled shell bodies also turn out to be uniform in the formation of raised or recessed vessel parts, such as those which arise, for example, from ornaments arranged on the outside.
  • These ornaments can be given sufficient strength, ie sublimity or indentation, within the scope of the manufacturing method according to the invention, because apart from the thin-shelled form, the omission of the inner formwork enables the form to be divisible. which is sufficiently simple, but simplifies removal from the mold while avoiding surfaces with a blocking effect.
  • the process according to the invention can therefore be used to produce vessels which are harmless to their surroundings because of the non-carcinogenic glass fibers, but are produced in simple shapes which can be used correspondingly frequently.
  • the vessels produced in this way nevertheless enable complicated shapes, such as, for. B. are known from the pottery, especially since the vessels are to be rotationally symmetrical.
  • vessels produced by the method according to the invention are preferably provided with a permanent coloring, as has already been described above.
  • a rotationally symmetrical shape (42), a rotation is used as the device disc (43), which rotates in the direction of arrow (44) when the mixture layers described are applied.
  • a manipulator, generally designated (45) is used to apply the layers. Only the outer end (46) of the manipulator arm is visible, which is movable on the one hand perpendicular to the plane of the table (43) according to the double arrow (47), but which on the other hand has a head (48). This has an angled nozzle (49) from which the free jet (50) emerges.
  • the head can be pivoted about 180 degrees in accordance with the double arrow (52) in the tubular joint (53). In accordance with the direction of the arrow, which is not shown, it is thereby possible to direct the beam perpendicularly to the outwardly curved partial surfaces (54-56) of the mold (42). This is the prerequisite for the construction of thin layers from which the hollow body can be produced, which has a pot-like shape in the exemplary embodiment.
  • Recesses (57) are provided in this vessel with blind bases, which later form the feet of the vessel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Moulding By Coating Moulds (AREA)
EP88118051A 1986-05-22 1986-05-22 Procédé et dispositif pour fabriquer des récipients ouverts d'un côté au moins, en ciment ou en mortier de ciment et une armature Expired - Lifetime EP0311145B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP88118051A EP0311145B1 (fr) 1986-05-22 1986-05-22 Procédé et dispositif pour fabriquer des récipients ouverts d'un côté au moins, en ciment ou en mortier de ciment et une armature
DE8888118051T DE3686332D1 (de) 1986-05-22 1986-05-22 Verfahren und vorrichtung zur herstellung von mindestens einseitig offenen gefaessen aus zement, gegebenenfalls aus zementmoertel und einer bewehrung.
AT88118051T ATE79070T1 (de) 1986-05-22 1986-05-22 Verfahren und vorrichtung zur herstellung von mindestens einseitig offenen gefaessen aus zement, gegebenenfalls aus zementmoertel und einer bewehrung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP88118051A EP0311145B1 (fr) 1986-05-22 1986-05-22 Procédé et dispositif pour fabriquer des récipients ouverts d'un côté au moins, en ciment ou en mortier de ciment et une armature
EP86106950A EP0246347B1 (fr) 1986-05-22 1986-05-22 Procédé et dispositif pour fabriquer des récipients ouverts d'un côté au moins, en ciment ou en mortier de ciment et une armature

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP86106950.8 Division 1986-05-22

Publications (3)

Publication Number Publication Date
EP0311145A2 true EP0311145A2 (fr) 1989-04-12
EP0311145A3 EP0311145A3 (en) 1990-06-13
EP0311145B1 EP0311145B1 (fr) 1992-08-05

Family

ID=8195144

Family Applications (2)

Application Number Title Priority Date Filing Date
EP86106950A Expired - Lifetime EP0246347B1 (fr) 1986-05-22 1986-05-22 Procédé et dispositif pour fabriquer des récipients ouverts d'un côté au moins, en ciment ou en mortier de ciment et une armature
EP88118051A Expired - Lifetime EP0311145B1 (fr) 1986-05-22 1986-05-22 Procédé et dispositif pour fabriquer des récipients ouverts d'un côté au moins, en ciment ou en mortier de ciment et une armature

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP86106950A Expired - Lifetime EP0246347B1 (fr) 1986-05-22 1986-05-22 Procédé et dispositif pour fabriquer des récipients ouverts d'un côté au moins, en ciment ou en mortier de ciment et une armature

Country Status (3)

Country Link
EP (2) EP0246347B1 (fr)
AT (1) ATE57646T1 (fr)
DE (1) DE3675209D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0557261A1 (fr) * 1992-02-21 1993-08-25 Partek Concrete Oy Ab Dispositif pour la fabrication de colonnes en béton
DE19504782A1 (de) * 1995-02-14 1996-08-29 Roland Mueller Verfahren zur Herstellung von künstlichen Felsen und Kunststeinen, aus natürlichen Stoffen mit faserverstärkten, hydraulisch erhärtenden Massen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120112755A (ko) 2010-01-07 2012-10-11 이 아이 듀폰 디 네모아 앤드 캄파니 살진균제 복소환 화합물

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB146400A (en) * 1918-08-13 1921-12-02 Josef Von Vass Process for the manufacture of hollow bodies of circular cross section from plastic masses
DE373724C (de) * 1920-04-11 1923-04-14 Josef Von Vass Verfahren zur Herstellung von Koerpern kreisrunden Querschnitts, wie Rohre, aus Beton und anderen bildsamen Massen auf Schleuderformmaschinen
FR529190A (fr) * 1920-07-16 1921-11-24 Alfred Frey Perfectionnements aux procédés de fabrication d'objets en ciment mélangé d'une matière fibreuse appropriée
DE549261C (de) * 1928-12-14 1932-04-25 Albert Charles May Verfahren zum Herstellen von Hohlkoerpern aus feuerfestem Stoff, insbesondere Schmelztiegeln
US1840169A (en) * 1930-01-24 1932-01-05 Circular Concrete Container Co Combination clamp and drift pin
FR797063A (fr) * 1935-10-29 1936-04-20 Fabrication de corps creux en fibro-ciment ou autre matière analogue, en particulier de cercueils
GB635151A (en) * 1943-03-10 1950-04-05 Jacob Jan Dimmendaal Improvements in or relating to a process for the manufacture of conduits and conduits manufactured according to said process
GB1290734A (fr) * 1969-11-28 1972-09-27
GB1559831A (en) * 1975-04-10 1980-01-30 Charcon Composites Ltd Sheet piling
GB1540823A (en) * 1975-12-22 1979-02-14 Holgreen Ltd Variable-shape shell mould and method of using the mould
US4150083A (en) * 1976-03-10 1979-04-17 United States Gypsum Company Contouring gypsum articles
GB1535385A (en) * 1976-07-16 1978-12-13 Lancaster F Guns for dispensing streams of liquid cement and fibre reinforcement
DE2829582C3 (de) * 1978-07-05 1982-01-07 Marbeton Kies- U. Betonwerk Marstetten Gmbh, 7971 Aitrach Schalungsform für die Herstellung von profilierten faserbewehrten Betonteilen, insbesondere Glasfaserbetonteilen
GB8322812D0 (en) * 1983-08-25 1983-09-28 Corrosion Systems Ltd Fibre reinforced cement applicator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0557261A1 (fr) * 1992-02-21 1993-08-25 Partek Concrete Oy Ab Dispositif pour la fabrication de colonnes en béton
DE19504782A1 (de) * 1995-02-14 1996-08-29 Roland Mueller Verfahren zur Herstellung von künstlichen Felsen und Kunststeinen, aus natürlichen Stoffen mit faserverstärkten, hydraulisch erhärtenden Massen
DE19504782C2 (de) * 1995-02-14 1999-08-19 Mueller Verfahren und Formkörper für die Herstellung von künstlichen Felsformationen
DE19504782C5 (de) * 1995-02-14 2013-03-28 Roland Müller Verfahren und Formkörper für die Herstellung von künstlichen Felsformationen

Also Published As

Publication number Publication date
EP0246347A1 (fr) 1987-11-25
ATE57646T1 (de) 1990-11-15
EP0246347B1 (fr) 1990-10-24
EP0311145A3 (en) 1990-06-13
DE3675209D1 (de) 1990-11-29
EP0311145B1 (fr) 1992-08-05

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