EP3877126A1 - Verfahren zur herstellung von betonfertigteilen mit hilfe einer gussform - Google Patents
Verfahren zur herstellung von betonfertigteilen mit hilfe einer gussformInfo
- Publication number
- EP3877126A1 EP3877126A1 EP19817119.1A EP19817119A EP3877126A1 EP 3877126 A1 EP3877126 A1 EP 3877126A1 EP 19817119 A EP19817119 A EP 19817119A EP 3877126 A1 EP3877126 A1 EP 3877126A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- molding compound
- precast concrete
- concrete
- mold cavity
- 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
- 239000011178 precast concrete Substances 0.000 title claims abstract description 17
- 238000005266 casting Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 238000002844 melting Methods 0.000 claims abstract description 18
- 230000008018 melting Effects 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims description 32
- 150000001875 compounds Chemical class 0.000 claims description 22
- 238000009415 formwork Methods 0.000 claims description 13
- 239000002440 industrial waste Substances 0.000 abstract description 3
- 239000000206 moulding compound Substances 0.000 abstract 3
- 229940126214 compound 3 Drugs 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 241000242541 Trematoda Species 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
- B28B7/002—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps using magnets
-
- 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
- B28B7/342—Moulds, cores, or mandrels of special material, e.g. destructible materials which are at least partially destroyed, e.g. broken, molten, before demoulding; Moulding surfaces or spaces shaped by, or in, the ground, or sand or soil, whether bound or not; Cores consisting at least mainly of sand or soil, whether bound or not
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
-
- 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
- B28B7/364—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article of plastic material or rubber
Definitions
- the invention relates to a method for producing prefabricated concrete parts with the aid of casting molds.
- US20100117248A1 discloses a method for casting concrete or concrete-like elements with the aid of a casting mold, the casting mold consisting of an easily deformable or machinable material.
- Corresponding processing steps can also be used to design amorphous molds whose flexibility in terms of geometry surpasses conventional formwork concepts made of wood or the like.
- saws, milling or similar cutting processes of a manual or automated nature are known from the prior art.
- the processing effort is quite high, which is why previously known methods for casting amorphous structures are hardly used in large-scale industrial processes. Because in the case of complex cast parts, the mold is usually only separated from the cast part below
- the invention is therefore based on the object of improving a method of the type described at the outset such that prefabricated concrete parts despite changing complex geometries can be produced in a time-efficient manner and the resulting industrial waste is reduced.
- the invention solves the problem in that a
- Bounding elements define the basic shape up to a mold cavity height that is less than the height of the precast concrete element, with a liquefied molding compound, after which the mold cavity is modeled from the hardened molding compound before the basic mold with the mold cavity arranged therein is filled with concrete and after the concrete has hardened the mold cavity is brought to the melting temperature of the molding compound and melted.
- the mold is shaped in at least three steps. First, on a mold base, such as a production table, a dem
- the corresponding basic shape is encased in the concrete casting, the volume thus encompassed having to be proportionally larger than the volume of the concrete casting. Then the basic mold is filled with the liquefied molding compound and only until a defined mold cavity height is reached. Filling can be done in a particularly simple manner by pouring liquefied molding compound, but other material-applying processes are also possible.
- the mold cavity height is understood to be the height of the volume in which, starting from one, up to the delimiting elements
- the hardened molded body filling the basic shape up to the mold cavity height can be modeled, either material removal, for example by automated milling, or material application, for example by additive application of molding compound.
- This has the major advantage that the time-consuming modeling processes can be reduced to the smallest possible processing volume, which significantly reduces the total processing time.
- the basic mold with the mold cavity arranged in it is poured out with a concrete mass, after which it hardens.
- the mold cavity is brought to the melting temperature, that is to say a temperature which is higher than that Melting point of the molding compound used.
- the molding compound liquefied in this way can then flow off and be reused for a new mold cavity, for example by pouring it into a new basic mold.
- Various low-melting materials such as wax, polymers, especially thermoplastics or others for the
- Hardening process must be maximum temperature.
- Boundary elements are formed from a molding compound and are also melted after the concrete has hardened.
- the molding compound used for the delimiting elements can be identical to the molding compound used for the molding cavity, or can differ from the molding cavity with regard to chemical or physical properties.
- the use of the molding compound as delimiting elements allows greater flexibility in the design of the entire casting mold. Both the mold cavity and the boundary elements can be modeled using identical separation or forming processes or using identical additive processes.
- Curing is carried out in a curing chamber, the curing temperature being below the melting temperature of the molding composition.
- the heat transfer from the hardening chamber to the concrete can take place both through heat radiation and convection from external heating elements, as well as through direct contact of inductive heating elements.
- the temperature settings used for this must be selected so that premature melting of the mold is avoided. If a temperature level is generated in the hardening chamber that only is just below the melting temperature of the molding compound, must
- collecting basins for the melting molding compound can be arranged.
- the formwork devices can be maneuvered and aligned with the aid of load lifting devices.
- the armature sparks can be designed as reinforcements.
- Formground for example, must be connected via screw systems.
- the disadvantage of this is that the limiting elements and the base of the mold are already damaged by the screw connection elements, so that readjustment of the connection and thus the basic shape geometry is only possible to a limited extent.
- a support connected to the limiting element which is detachably connected to a magnet for positioning the formwork device on a base of the shape.
- Basic shape geometry enables. Particularly favorable conditions result, for example, when the magnet is designed as an electromagnet. If a delimiting element is erroneously arranged in the wrong position, the force-locking can be canceled by switching off the electromagnet, which leads to an easy release of the said element and a simple one
- the magnet can be connected to the carrier by fastening mechanisms which are obvious to the person skilled in the art. For example, you can
- Magnets are fixed via a tongue and groove connection to the carrier attached to the limiting element.
- the groove slants downwards in the direction
- Form is formed so that a loosening of the tongue and groove connection is only possible by lifting the magnet.
- the attachment of the carrier itself to the limiting element can be carried out by the carrier
- the magnet can be cast into the limiting element. This has the advantage that fewer components are required for the formwork device, which have to be collected and cleaned after the delimiting elements have melted. In addition, with a suitable orientation the
- Magnetic poles are prevented from arranging the limiting elements incorrectly as a result of the occurrence of a repulsive force, while, if correctly assigned, a guided connection is induced.
- Fig. 1 shows a schematic section of a method according to the invention
- Fig. 2 is a representation corresponding to Fig. 1 with modeled mold cavity in the filled state
- Fig. 3 is a plan view of a basic shape formed by limiting elements according to the invention.
- a basic shape 2 defined by boundary elements 1 is filled with a liquefied molding compound 3 up to a mold cavity height h, as can be seen in FIG. 1.
- the processing volume to be modeled is kept small and therefore the modeling methods used to design the mold nest 4 shown in FIG. 2 can be used
- the modeling can be done in a separation or forming process or, according to some design variants, also by means of an additive process. After completion of this process step, the basic shape 2 with the mold cavity 4 arranged therein is formed with a
- the basic mold 2 together with the mold cavity 4 forms the mold 6.
- the mold cavity 4 can be melted in an energy-saving manner due to the low melting temperature of the molding compound 3 used, which is a simple release of the
- Precast concrete from the mold 6 and a recycling of the molding compound 3 for a new mold nest 4 enables.
- Precast concrete from the mold 6 and a recycling of the molding compound 3 for a new mold nest 4 enables.
- Embodiments of the process according to the invention can be used as waxes 3, waxes, polymers, especially thermoplastics, or other materials which can be used in an obvious manner by the person skilled in the art.
- the limiting elements 1 forming the basic shape 2 can also be formed from a molding compound 3, thereby ensuring that the complete mold 6 is recycled. After the precast concrete has hardened, both the limiting elements 1 and the mold cavity 4 brought to the melting temperature can flow off and the
- edge regions 7 of the mold 6 can be modeled identically to the mold cavity 4 if any modeling device or at least its tool head is designed to be movable.
- anchors 8 can be made with one of the
- Boundary elements 1 protruding point 9 are poured into the same.
- the Boundary elements 1 protruding point 9 are poured into the same.
- Anchor flukes 10 are designed in the sense of reinforcement, which gives the limiting elements 1 greater stability.
- supports 14 connected to the limiting elements 1 with a magnet 11 can be used to fix the limiting elements 1 with the
- Form base 12 may be arranged.
- Form base 12 can be formed, for example, by a production table.
- the attachment between the magnet 1 1 and the carrier 14 can take place via a releasable tongue and groove connection, it being particularly advantageous if the groove is formed obliquely downward in the direction of the mold base 12 so that the tongue and groove is released. Connection is only possible by lifting the magnet 1 1.
- the carrier 14 can form thorn projections which protrude into the delimiting element 11, although other implementations known to those skilled in the art for fastening the carrier 14 to the delimiting elements 1 are of course also possible.
- magnets 11 can be cast into the delimiting elements 1, as a result of which both the non-positive connection of the delimiting elements 1 with one another and with the at least partially ferromagnetic form base 12 can be achieved.
- magnets 11 are designed as electromagnets, in the event of incorrect alignment on the mold base 12, switching off the electromagnets 11 can result in a non-positive connection between the mold base 12 and the limiting elements 1, which facilitates problem-free readjustment.
- Fig. 3 is a plan view of a by the invention
- Boundary elements 1 formed basic shape 2 shown.
- angle fittings 13 can be provided for connecting the limiting elements 1.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50950/2018A AT521840B1 (de) | 2018-11-06 | 2018-11-06 | Verfahren zur Herstellung von Betonfertigteilen mit Hilfe einer Gussform |
PCT/AT2019/060373 WO2020093078A1 (de) | 2018-11-06 | 2019-11-05 | Verfahren zur herstellung von betonfertigteilen mit hilfe einer gussform |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3877126A1 true EP3877126A1 (de) | 2021-09-15 |
EP3877126C0 EP3877126C0 (de) | 2023-06-07 |
EP3877126B1 EP3877126B1 (de) | 2023-06-07 |
Family
ID=70610653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19817119.1A Active EP3877126B1 (de) | 2018-11-06 | 2019-11-05 | Verfahren zur herstellung von betonfertigteilen mit hilfe einer gussform |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3877126B1 (de) |
AT (1) | AT521840B1 (de) |
PL (1) | PL3877126T3 (de) |
WO (1) | WO2020093078A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CS223266B1 (en) * | 1981-08-04 | 1983-09-15 | Lubomir Kupf | Plast mould for casting the concrete experimental cubes |
CN86100851A (zh) * | 1985-02-13 | 1986-09-10 | Mnk建筑公司 | 制造模板的方法 |
DE3735806C1 (de) * | 1987-10-22 | 1989-02-02 | Klaus Dittmann | Verfahren zur automatischen Herstellung von Sonderteilen aus Beton oder Stahlbeton |
JP2516191B2 (ja) * | 1992-08-20 | 1996-07-10 | 勝也 平岡 | コンクリ―ト製品の脱型方法 |
JP2001105420A (ja) * | 1999-10-08 | 2001-04-17 | Maeda Seikan Kk | コンクリート製品の製造方法 |
WO2008141644A2 (en) | 2007-05-18 | 2008-11-27 | Newton Concrete Aps | Amorphous formwork |
DE102007063561A1 (de) * | 2007-12-30 | 2009-07-09 | Hochschule für Technik und Wirtschaft Dresden (FH) | Verfahren und Anordnung zur Erstellung von Bauwerken |
US11065782B2 (en) * | 2013-02-21 | 2021-07-20 | Laing O'rourke Australia Pty Limited | Method for casting a construction element |
EP3180173B1 (de) * | 2014-08-15 | 2021-04-07 | Laing O'Rourke Australia Pty Limited | Verfahren zur herstellung eines verbundkonstruktionselements |
-
2018
- 2018-11-06 AT ATA50950/2018A patent/AT521840B1/de active
-
2019
- 2019-11-05 PL PL19817119.1T patent/PL3877126T3/pl unknown
- 2019-11-05 EP EP19817119.1A patent/EP3877126B1/de active Active
- 2019-11-05 WO PCT/AT2019/060373 patent/WO2020093078A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
EP3877126C0 (de) | 2023-06-07 |
EP3877126B1 (de) | 2023-06-07 |
PL3877126T3 (pl) | 2023-09-18 |
AT521840A1 (de) | 2020-05-15 |
WO2020093078A1 (de) | 2020-05-14 |
AT521840B1 (de) | 2021-04-15 |
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