WO2017009677A1 - Permanent shell-core for producing internal cavities of vibro-pressed concrete articles - Google Patents
Permanent shell-core for producing internal cavities of vibro-pressed concrete articles Download PDFInfo
- Publication number
- WO2017009677A1 WO2017009677A1 PCT/HU2016/000048 HU2016000048W WO2017009677A1 WO 2017009677 A1 WO2017009677 A1 WO 2017009677A1 HU 2016000048 W HU2016000048 W HU 2016000048W WO 2017009677 A1 WO2017009677 A1 WO 2017009677A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shell
- core
- base space
- permanent
- permanent shell
- Prior art date
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 73
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 27
- 238000003825 pressing Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- 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
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
- B28B7/183—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article for building blocks or similar block-shaped objects
-
- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould
-
- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0068—Embedding lost cores
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
- E01C5/065—Pavings made of prefabricated single units made of units with cement or like binders characterised by their structure or component materials, e.g. concrete layers of different structure, special additives
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2201/00—Paving elements
- E01C2201/08—Paving elements having direction indicating means
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2201/00—Paving elements
- E01C2201/18—Elements representing text
Definitions
- the invention relates to a permanent shell-core for producing internal cavities of vibro-pressed concrete articles, and to a method for forming the internal cavities of the concrete articles.
- Pavers for public spaces, for spaces for private use and for sidewalks, kerbs for roads for pedestrian and vehicle traffic, steps and parking kerbs are nowadays most often made as prefabricated concrete elements.
- High architecture has the intention that architectural space should give its users extra aesthetic impressions and additional information on top of allowing everyday use.
- dome-like internal cavities are produced by on-site casting in a concrete ceiling structure.
- dome-shaped shell components are arranged with a regular geometry.
- the solution also comprises rod-like components having a snap-in configuration at both ends.
- These rods are adapted for connecting two adjacent permanent shells at the plane of the ceiling to be formed in such a way that they are situated at the corners of an equilateral triangle, the longitudinal axes of the rods being coincident with the sides of the triangle.
- an equilateral triangular grid is formed from the shells and the rods.
- the system of shells and rods is complemented by the rebar steel structure required for bearing loads, and then the ceiling structure is completed by casting concrete in the desired thickness and compacting the concrete by vibration.
- the pipe fitting installed between the two bounding planes of a wall panel or on- site cast floor extends through the entire cross section of the wall.
- the additional functionalities may require multiple differently shaped internal cavities even in case of a single given product.
- the core adapted for forming the cavity cannot be a permanent structural component belonging to the mould because that would overly increase the number of different mould variants and thus it is not feasible from an economic point of view.
- permanent shell-cores are only related to the product itself, and can be applied without modifications to the manufacturing machine and the moulds, and therefore they fulfil the above described requirements.
- Permanent shell-cores have not yet been applied for processes involving a closed mould space and technological steps comprising pressing.
- the object of the present invention is to provide a permanent shell-core that can be applied for producing cavities of pavers or other similar components, creating a new family of products.
- the invention is based on the recognition that by applying an expediently configured, two-level permanent shell-core such a multifunction cavity can be produced inside a concrete article - by way of example, a paver element - that does not have a full through-cut between the two opposite faces of the product.
- the design is driven by two sets of requirements.
- the first set includes the requirements dictating that the shape of the shell-core should be formed such that the internal cavity suited for receiving added functions is produced.
- the second set of requirements relates to which additional features should the shell- core suited for producing the cavity possess in order that it can be used in a closed mould space, with a technological process that also includes a vibro-pressing step.
- the geometrical configuration of the shell-core is prepared as follows:
- the base plane of this spatial region coincides with the abutment surface of the concrete article, and is open from this direction to allow for installing the required devices.
- base space This spatial region is called "base space", which forms the first level of the shell- core shape.
- It is adapted for receiving the wire connectors and pipe connections related to the components providing added functionality, as well as smaller-sized electronics modules and other similar devices.
- the base space expediently has a rectangular block shape, with the height of the block being 1/3-1/4 of the length of one of the sides of its base.
- a second level of the shell-core body is also required.
- This level is made up of a cylindrical or block-shaped spatial region or regions that has/have lower cross sectional area than the bottom of the base space, and is/are directed from the base space through the interior of the concrete article towards the flat face thereof situated opposite the base space.
- This spatial region is called "stack".
- the stacks receive the components of the arrangement which are adapted for transferring/conveying the physical entities and/or agents related to the added functionalities.
- These may be light sources or glass or plastic bodies adapted for light transfer, as well as water spray or jet nozzles, output openings of coloured smoke/fog generators or other components.
- the stack(s) cannot be open at the top because otherwise concrete may enter the base space when the mould space is filled up. In addition to that it has to be ensured that the main face of the concrete article has a uniform surface (i.e. pressed, coloured, roughened).
- the components of the second level i.e. the stack(s) of the permanent shell-core do not extend as far upwards as the top face of the concrete article, but are terminated by a respective end plate at 70%-90% of the combined height of the product.
- the concrete bridging situated above the end plate can be removed together with the end plate at little cost applying known methods such as rigid diamond-grain tools, diamond-coated cutting wires, or water jet cutting.
- the two-level shell-core is placed into a closed mould space.
- the simplest and most generic shape of the mould space is a box shape with a rectangular base.
- the mould space is bounded first by the manufacturing plate, with multiple manufacturing plates being continuously circulated among the stations of the manufacturing system.
- a given manufacturing plate only stays in the working space of the manufacturing machine for the duration while the shape of the product is formed. Then the shaped "wet" product is carried on by the flat manufacturing plate.
- the base of the mould space is defined by the plane of the manufacturing plate. This plane is coincident with the abutment surface of the product, and also with the bottom of the base space.
- the lateral faces of the box shape are constituted by the mould itself.
- the mould is constituted by four plates of an expediently selected thickness that are set perpendicular to the plane of the manufacturing plate and are firmly joined along their adjacent edges. Thereby five of the bounding faces of the mould space are formed, the space still being open at the top and ready for receiving the concrete material forming the concrete article.
- the closed mould space is formed by moving the pressing die that forms the sixth face of the box shape from a direction perpendicular to the plane of the manufacturing plate into the space bounded by the mould faces.
- the permanent shell-core has to be introduced into the mould space in the stage wherein the space is still open at the top and the casting of the concrete has not yet begun.
- the shell-core cannot have an arbitrary position in the mould space.
- the bottom of the base space has to be laid on the plane of the manufacturing plate, and also has to be set in a particular position with respect to the side walls.
- positioning projections are made to have the appropriate length and are arranged on the circumference of the shell core in a number and the directions required.
- the shell-core has the desired position inside the mould space and, consequently, inside the concrete article.
- shell-cores are usually made of plastic, with low wall thickness. This can be regarded expedient also because thereby the ratio of useful internal volume is high relative to the contour of the shell-core.
- lightweight plastic shells can withstand only limited external loads.
- the cover plate of the shell (parallel with the base plane of the base space) is prone to oscillate under the effect of vibrating and may get deformed by the pressing force (transferred damped by the concrete particles), springing back after the pressing force has disappeared.
- the insert is placed into the base space of the shell-core, followed by inserting the two items together into the mould space.
- the mould space is then filled up with concrete, and the concrete body is produced in a generally known manner, applying vibro-pressing.
- the completed concrete article - encompassing the shell- core and the insert - leaves the manufacturing machine and proceeds through the remaining steps of the technological process. As soon as the concrete article is rigid enough to be handled it is removed from the manufacturing plate and the temporary load bearing insert is removed. The load bearing insert can be reused for another shell-core.
- a kit is applied that consists of a two-level shell-core and a geometrically corresponding load bearing insert.
- the object of the invention is accomplished by providing a permanent shell-core for producing the internal cavities of vibro-pressed concrete articles that defines a three- dimensional spatial region, where the base plane of the spatial region coincides with a bounding plane of the concrete article, is open from this direction, and is characterised in that the three-dimensional spatial region of the shell-core has two connected levels built upon one another, where the first level of the spatial region is formed by a low-height base space and the second level thereof is formed by an upright stack disposed on at least one through-cut formed in the cover plate of the base space, the cover plate being parallel with the bottom of the base space, where the stack is terminated by an end plate disposed parallel with the bottom of the base space at a height of 70-90% of the total height dimension of the concrete article, with the bottom of the base space having at least one respective positioning projection arranged in the plane thereof in at least two directions, and with an optional load bearing insert being also receivable in the base space.
- the vertical projection of the base space is a regular plane figure (square, rectangle, polygon, circle, ellipse)
- the through-cut formed in the cover plate of the base space is a regular plane figure (square, rectangle, polygon, circle, ellipse) or a graphic pattern that can be drawn as a continuous closed curve.
- the interior surfaces of the stacks are constituted by walls perpendicular to the cover plate of the base space.
- more than one through-cuts of identical or different geometrical shape are disposed in the cover plate of the base space.
- the stacks are arranged inside the concrete article along a grid having perpendicular grid lines, the walls of the stacks situated on the cover plate of the base space having an oblong perpendicular trapezoidal cross-sectional shape, or a shape consisting of rectangles with gradually decreasing width.
- the positioning spacer has a rod-like interconnecting section and an insertion tongue disposed at the end of the interconnecting section, the insertion tongue lying at an angle of 70-85° relative to the bottom of the base space, with the interconnecting section having different length at different sides of the base space, and being made of thermoplastic plastic.
- the permanent shell-core according to the invention also comprises a load bearing insert that can be temporarily placed in the base space.
- Fig. 1 shows the top plan view of the permanent shell-core according to the invention
- Fig. 2 is a section of the permanent shell-core of Fig. 1 taken along plane X-X,
- Fig. 3 shows a rotated view of a section of the permanent shell-core of Fig. 1 taken along plane Y-Y,
- Fig. 4 shows the through-cut situated on the cover plate of the base space of the permanent shell-core according to the invention
- Fig. 5 is a section of the permanent shell-core of Fig. 1 taken along plane Z-Z,
- Fig. 6 shows a magnified view of detail P of Fig. 3,
- Fig. 7 illustrates an alternative implementation of the detail shown in Fig. 6,
- Fig. 8 shows the top plan view of a permanent shell-core according to the invention inserted into a mould space
- Fig. 9 shows a sectional view of Fig. 8 taken along plane Q-Q
- Fig. 10 shows the top plan view of a hollow concrete article
- Fig. 1 1 is a sectional view of Fig. 10 taken along plane R-R,
- Fig. 12 shows the top plan view of the permanent shell-core according to the invention, including a stack with a "H" symbol,
- Fig. 13 shows the top plan view of the permanent shell-core according to the invention, with a stack configured for a solar cell,
- Fig. 14 shows a top plan view of the permanent shell-core according to the invention, with stack having cross sectional shapes suggesting a digital display,
- Fig. 15 shows the top plan view of the permanent shell-core according to the invention, including a stack with a "+" symbol,
- Fig. 16 shows the top plan view of the permanent shell-core according to the invention, having a "C°" symbol
- Fig. 17 shows the top plan view of the permanent shell-cores according to the invention included in a mould set with a mould space having base module dimensions L x B,
- Fig. 18 shows the top plan view of the permanent shell-cores according to the invention included in a mould set with double base module dimensions L x 2B, with a central arrangement in the base module,
- Fig. 19 shows the top plan view of the permanent shell-cores according to the invention included in a mould set with double base module dimensions L x 2B, with a side-aligned arrangement in the base module,
- Fig. 20 shows the top plan view of the permanent shell-cores according to the invention included in a mould set with quadruple base module dimensions 2L x 2B, with a central arrangement in the base module,
- Fig. 21 shows the through-cut contour with a "leaf symbol situated on the cover plate of the base space of the permanent shell-core according to the invention.
- Fig. 22 shows the top plan view of the permanent shell-cores according to the invention included in a mould set with quadruple base module dimensions 2L x 2B, with a side-aligned arrangement in the base module, showing a composite symbol when seen from above. Best mode of carrying out the invention
- Fig. 1 shows the top plan view of a permanent shell-core. Further detail views of the permanent shell-core are shown in Figs. 2, 3, and 5.
- the shell-core comprises a rectangular block-shaped base space 1 that is open from the direction of its bottom la, and is bounded by a cover plate lb situated opposite the base space bottom la.
- the cover plate lb has a through-cut lc with a contour of an expediently chosen geometry.
- a spatial region (a stack 2) having lower area but proportionately greater height compared to the base space 1 is connected to the through-cut lc (see Fig. 2).
- the interior surface 2a of the stack 2 is constituted by straight lines set on the contour line of the through-cut 2c situated on the cover plate lb of the base space perpendicular to the bottom la thereof.
- the stack 2 is terminated by an end plate 3.
- the end plate 3 is parallel with the bottom la of the base space.
- Fig. 2 there can also be seen the load bearing insert 9 which has solid structure and is dimensioned to fit into the base space 1 , where it can be inserted in the direction indicated by the arrow.
- Fig. 4 there can be seen a possible configuration of the through-cut lc of the cover plate lb, which in this case is an "arrow" symbol that can be drawn as a continuous, closed curve. It can also be seen in Figs. 1, 2 how the shell-core according to the invention is situated inside a vibro-pressed concrete article specified by the generic parameters L x B x H (length x width x height).
- mould space 6 and mould 7 defined by the base module dimensions L x B characteristic of a concrete article are also shown schematically.
- the position of the permanent shell-core in the mould space 6 is determined by providing positioning projections 4.
- the end plate 3 of the permanent shell-core adapted for closing the stack 2 is disposed at a height range 0.7-0.9H from the bottom la of the base space (H is the height of the concrete article).
- the configuration of the positioning projections 4 is shown in Fig. 5 which is a sectional view of Fig. 1 taken along plane Z-Z, according to which the positioning projections 4 have a respective interconnecting section 4a extending along the bottom la and terminating in a tongue 4b that expediently lies at an angle a of 70-85° with respect to the plane la. As it is described below, setting the tongue 4b at such an angle facilitates the insertion of the permanent shell-core into the mould space 6.
- FIGs. 6 and 7 detail P of Fig. 3 is depicted, illustrating the section of the stack wall 2b of the stack 2, with the thickness of the stack wall increasing - corresponding to the load borne - either in steps or continuously from the end plate 3 towards the cover plate lb of the base space.
- Fig. 8 shows the permanent shell-core 15 described above, placed centrally into the mould space 6 of a mould 7 having base module dimensions L x B.
- the illustrated permanent shell-core 15 has multiple (by way of example, nine) stacks 2 having cylindrical cross section. These stacks 2 are situated at the nodes of an orthogonal grid with a grid distance t.
- Fig. 9 is a sectional view of Fig. 8 taken along plane Q-Q, illustrating the permanent shell-core 15 placed in the mould space 6 of the mould 7 situated on the manufacturing plate 8. In this arrangement it can also be seen that the base space 1 of the permanent shell-core 15 is completely filled up by the load bearing insert 9 inserted therein.
- the mould space 6 is filled with concrete up to the fill level F, followed by vibro- pressing the concrete in the direction of pressing 1 1 until the end level 6b of the mould space is reached (which corresponds to the height H of the finished product).
- the end plate 3 of the previously described stacks 2 prevents the vibro-pressed concrete from entering the internal space of the permanent shell-core 15.
- one or multiple concrete bridgings 12 are formed between the end plate 3 and the end level 6b.
- the concrete bridging 12 and the end plate 3 can subsequently be removed at little additional cost, thereby creating a free connection between the bottom and upper faces of the concrete article for installing additional components.
- Fig. 10 a top plan view of a hollow concrete article 10 is shown, wherein the cavity along section plane R-R is formed applying the permanent shell-core 15.
- Fig. 1 1 shows the entire cross section (along the plane R-R) of the hollow concrete article 10 in a state in which the concrete bridgings 13 and the end plates 3 of the stacks have already been removed.
- the load bearing insert 9, placed temporarily into the base space 1 is then removed in the direction of the arrow shown in the drawing.
- the insert can be used again.
- the hollow concrete article 10 shown in Figs. 10-1 1 has a base module size of L x B and a height H, determined by the base level of mould space 6a and the end level of the finished product.
- the permanent shell-core is expediently configured in a manner that such a number of stacks 2 are connected to the base space 1 which allow for recognizing various graphical symbols (letters, numbers, etc.).
- the permanent shell-core is expediently configured in a manner that such a number of stacks 2 are connected to the base space 1 which allow for recognizing various graphical symbols (letters, numbers, etc.).
- a permanent shell-core 17 adapted to be applied with a solar cell
- a permanent shell-core 19 with a "+” symbol i.e. red cross, first aid location
- a permanent shell-core 20 with a C° symbol i.e. red cross, first aid location
- mould sets are applied in actual practice for making multiple products in a single run.
- FIG. 17 A detail of a mould with such a configuration can be seen in Fig. 17 in top plan view.
- the mould set 21 is produced by multiplying the mould space 6 having base module dimensions L x B.
- Fig. 17 also illustrates the flexibility of application of the permanent shell-cores. Applying mould spaces 6 with identical base module dimensions with the shell-cores 15, 16, 17, three different products can be manufactured simultaneously.
- Concrete articles produced applying mould sets are often made according to a dimension series.
- the base of the series is a base module with dimensions L x B (length x width), with the elements having double or quadruple dimensions (L x 2B or 2L x 2B) allowing for various possible applications.
- Fig. 18 a detail of a mould set 23 with mould spaces 22 having double base module dimensions L x 2B can be seen in top plan view. Permanent shell-cores designated with the reference numerals 5 and 17 were place in these mould spaces 22 such that the centre points of the cores coincide with the L x B base module centre points.
- Fig. 19 also shows a mould set 23 comprising mould spaces 22 with double base module dimensions.
- the spacers (positioning projections) 4 were removed at one side of each permanent shell-core 17, 18 placed into the mould space 22, with the interconnections sections 4a being lengthened at the respective opposite sides.
- This configuration allows that the two permanent shell-cores having base module dimensions are in direct contact at one side, and can therefore display a composite symbol, for example a number and a measurement unit (C°) in the same concrete article.
- Fig. 20 a detail of a mould set 25 with mould spaces 24 having quadruple base module dimensions 2L x 2B can be seen in top plan view.
- the permanent shell-cores 15, 16, and 19 having base module dimensions were placed into the mould spaces 24 without any modification. Applying this configuration shell-cores having base module dimensions
- FIG. 21 shows a permanent shell-core 26 with (single) base module dimensions with the positioning projections 4 being removed from two adjacent sides, and with the interconnecting sections 4a being lengthened at the respective opposite sides.
- Fig. 22 there can be seen how the permanent shell-core 26 can be applied for forming a composite symbol with larger surface area in a mould set 25 having mould spaces 24 with quadruple base module dimensions (2L x 2B). In that case, two sides of each permanent shell-core 26 are aligned against the adjacent shell-cores.
- the possibility for placing differently configured shell-cores (such as the ones designated with the reference numerals 26 and 15) in adjacent mould spaces 24 also exists here.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATGM9009/2016U AT16747U1 (en) | 2015-07-16 | 2016-07-18 | Cup core |
ROU201800002U RO201800002U1 (en) | 2015-07-16 | 2016-07-18 | Permanent core for producing internal cavities in vibro-compressed concrete articles |
PL424341A PL238513B1 (en) | 2015-07-16 | 2016-07-18 | Durable shell core intended for production of internal vibration-compacted concrete products' dents |
DE212016000142.6U DE212016000142U1 (en) | 2015-07-16 | 2016-07-18 | Permanent shell core for producing internal cavities of vibratory pressure-pressed concrete objects |
SK24-2018U SK8321Y1 (en) | 2015-07-16 | 2016-07-18 | Permanent shell-core for producing internal cavities of vibro-pressed concrete articles |
BG3950U BG2935U1 (en) | 2015-07-16 | 2018-01-11 | Fixed mould for the obtaining of internal voids of vibro-pressed concrete products |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUP1500331 | 2015-07-16 | ||
HUP1500331 | 2015-07-16 | ||
HUP1600258 | 2016-04-15 | ||
HU1600258A HU231008B1 (en) | 2016-04-15 | 2016-04-15 | Permanent shell for providing the inner cavity of concrete blocks |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017009677A1 true WO2017009677A1 (en) | 2017-01-19 |
Family
ID=89992141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/HU2016/000048 WO2017009677A1 (en) | 2015-07-16 | 2016-07-18 | Permanent shell-core for producing internal cavities of vibro-pressed concrete articles |
Country Status (7)
Country | Link |
---|---|
BG (1) | BG2935U1 (en) |
CZ (1) | CZ31681U1 (en) |
DE (1) | DE212016000142U1 (en) |
PL (1) | PL238513B1 (en) |
RO (1) | RO201800002U1 (en) |
SK (1) | SK8321Y1 (en) |
WO (1) | WO2017009677A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111716519A (en) * | 2019-03-18 | 2020-09-29 | 新疆八一钢铁股份有限公司 | Method for mounting and manufacturing embedded steam turbine supporting bottom plate |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US6637464B1 (en) | 2002-08-30 | 2003-10-28 | Kenneth R. Cornwall | Hydrostatic test cap |
US20040211138A1 (en) * | 2001-01-16 | 2004-10-28 | Sakno Michael P. | Firestop coupling for penetration of building separations |
DE102007031935A1 (en) * | 2007-06-29 | 2009-01-02 | FRANZKE, Jörg | Component with functional elements and method for its production |
US7540121B2 (en) | 2004-08-13 | 2009-06-02 | Bam Ag | Steel-concrete hollow bodied slab or ceiling |
-
2016
- 2016-07-18 RO ROU201800002U patent/RO201800002U1/en unknown
- 2016-07-18 SK SK24-2018U patent/SK8321Y1/en unknown
- 2016-07-18 PL PL424341A patent/PL238513B1/en unknown
- 2016-07-18 CZ CZ2018-34700U patent/CZ31681U1/en active Protection Beyond IP Right Term
- 2016-07-18 WO PCT/HU2016/000048 patent/WO2017009677A1/en active Application Filing
- 2016-07-18 DE DE212016000142.6U patent/DE212016000142U1/en active Active
-
2018
- 2018-01-11 BG BG3950U patent/BG2935U1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20040211138A1 (en) * | 2001-01-16 | 2004-10-28 | Sakno Michael P. | Firestop coupling for penetration of building separations |
US6637464B1 (en) | 2002-08-30 | 2003-10-28 | Kenneth R. Cornwall | Hydrostatic test cap |
US7540121B2 (en) | 2004-08-13 | 2009-06-02 | Bam Ag | Steel-concrete hollow bodied slab or ceiling |
DE102007031935A1 (en) * | 2007-06-29 | 2009-01-02 | FRANZKE, Jörg | Component with functional elements and method for its production |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111716519A (en) * | 2019-03-18 | 2020-09-29 | 新疆八一钢铁股份有限公司 | Method for mounting and manufacturing embedded steam turbine supporting bottom plate |
Also Published As
Publication number | Publication date |
---|---|
SK8321Y1 (en) | 2019-01-08 |
RO201800002U1 (en) | 2019-02-28 |
PL238513B1 (en) | 2021-08-30 |
SK242018U1 (en) | 2018-08-02 |
DE212016000142U1 (en) | 2018-02-16 |
CZ31681U1 (en) | 2018-04-03 |
PL424341A1 (en) | 2018-11-19 |
BG2935U1 (en) | 2018-05-15 |
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