DE202010000169U1 - Casting with plane-parallel surfaces and device for its production - Google Patents

Casting with plane-parallel surfaces and device for its production Download PDF

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Publication number
DE202010000169U1
DE202010000169U1 DE201020000169 DE202010000169U DE202010000169U1 DE 202010000169 U1 DE202010000169 U1 DE 202010000169U1 DE 201020000169 DE201020000169 DE 201020000169 DE 202010000169 U DE202010000169 U DE 202010000169U DE 202010000169 U1 DE202010000169 U1 DE 202010000169U1
Authority
DE
Germany
Prior art keywords
casting
parallel
plane
cavity
pipe
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.)
Expired - Lifetime
Application number
DE201020000169
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German (de)
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.)
B & S GmbH
B+S GmbH
Original Assignee
B & S GmbH
B+S 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 B & S GmbH, B+S GmbH filed Critical B & S GmbH
Priority to DE201020000169 priority Critical patent/DE202010000169U1/en
Publication of DE202010000169U1 publication Critical patent/DE202010000169U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/22Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/008Producing shaped prefabricated articles from the material made from two or more materials having different characteristics or properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00Methods or machines specially adapted for the production of tubular articles
    • B28B21/02Methods or machines specially adapted for the production of tubular articles by casting into moulds

Abstract

Casting, which consists of a concrete base material,
and which has two plane-parallel surfaces,
characterized,
the casting (1) has on one of the two plane-parallel surfaces a layer of a second casting material (9) which forms the plane-parallel surface,
wherein this second casting material (9) in its flowable state has a lower viscosity than the concrete base material (7).

Description

  • The Innovation relates to a casting according to the preamble of the claim 1.
  • Concrete castings with two plan parallel surfaces are known from practice. For example, in shaft construction Concrete pipe elements used in axial alignment with each other be set, so as a total of the desired slot, for example a sewage shaft, from the desired height or arranged in the ground To give depth. It is known that the concrete surfaces the two plan parallel end faces of the respective pipe section not always one hundred percent plan. To local pressure peaks To avoid it is therefore known in such shafts Pressure compensation material between two superposed pipe sections provide, which then the support pressures of the upper pipe sections uniform.
  • While the mentioned pipe sections for creating a shaft only are burdened by the weight of the shaft, significantly higher forces occur the underground pipe jacking on. This will be individual pipe sections lowered into a press pit and then submerged by a previously Drilled tunnel pressed. After appropriate propulsion is the Press stamp withdrawn, another pipe section is lowered into the press pit and then acted upon by the ram, so that the entire pressing forces on these as well as previously located pipe sections only on the face transferred to the pipe walls become.
  • at The creation of wind turbines is known to the towers of Manufacture concrete wind turbines, also from individual pipe sections, wherein for assembly of the tower then the corresponding pipe sections one above the other to be ordered. To improve the stability of the tower These pipe sections are clamped together, either corresponding tension cables can run in the hollow interior of the tower, or through conduits, which are in the tower wall and in the respective wall sections are introduced from the outset.
  • at the last two mentioned Application examples of concrete castings, namely the underground Jacking pipes and at the tower sections of wind turbines occur very high pressure loads on the front surfaces of the interact with individual pipe sections. Constructive is intended that the two ends of the respective pipe sections plane parallel aligned with each other. In practice, however, the problem often occurs on that this planetary parallelism, which is constructively provided, not one hundred percent exact can be maintained, even with a perfectly smooth surface design the pipe sections that have no impermissible local pressure peak caused by unevenness, alone can not be sufficient parallelism the two end faces lead the pipe sections, that at the occurring very high pressure forces local voltage spikes in the concrete bodies arise, which fail to the component and thus to the destruction of the lead respective casting can.
  • Of the Innovation is the object of a generic casting be improved so that this is the best possible parallelism of the two constructively plan parallel provided surfaces and thus reliable against the occurrence of high pressure loads is ensured.
  • These Task is by a casting with the features of the claim 1 solved and by means of a device according to claim 5, for the production of such a casting can be used.
  • The Innovation beats in other words, to pour the casting standing, wherein standing in this context means that the two plan in parallel surfaces to be produced the top and bottom of the casting during the casting process form. As a so-called base material of the casting is thereby a concrete material used, for example, a conventional Concrete material that has an uneven or possibly sloping surface after filling in the mold at least not sufficiently the parallelism of his plan surface to the floor area ensures.
  • Therefore is proposed as proposed, the top layer when pouring of the casting by a second casting material which, as long as he does not harden begins and still has its flowable state, a lower viscosity has as the concrete base material. Due to this lower viscosity, this can second casting material can be leveled easily, for example by physical excitation by means of a vibrating or vibrating device, or he can even in a manner known per se as so-called "self Leveling material "designed be, so designed so thin be that he is self-employed, exclusively through the action of gravity, forms a perfectly horizontal surface.
  • The horizontal surface, which is achieved with the second casting material, a plane parallelism of this surface is ensured to the bottom surface of the casting, without the casting to be post-processed in the cured state would have to, for example, plane would have to be ground parallel.
  • at the mold, in which the casting is made, is known per se Way provided a formwork which limits the casting cavity, in the the concrete base material and the second casting material is filled. So that all around the surface of the casting no over the surface outward uprights or edges, the mold is in this area for the second Cast material repelled, similar to at a hydrophobic surface, water not on this surface pulls up, is ensured by such a repellent coating, that the second casting material does not project beyond its surface Side edges where it forms the formwork walls. In this way it is ensured that the casting post-processing plane parallel surfaces having.
  • One embodiment The invention is based on the purely schematic representation below explained in more detail. there shows
  • 1 a vertical section through a mold with a casting therein, and
  • 2 an excerpt from
  • 1 in the region of the upper edge of the casting in the casting mold.
  • In the drawings is with 1 a casting called within a device 2 is arranged, which forms a mold. The device 2 has a bottom plate 3 on, which is leveled out exactly horizontally in a conventional manner, ie, has an exactly horizontal surface. This leveling can be done for example by means of several screws, by chocks, or by the fact that this floor plate 3 is mounted on hydraulic tappets, which are connected to each other according to the principle of communicating tubes by liquid lines and thus automatically level itself out.
  • On the bottom plate 3 are an outer formwork 4 and an internal formwork 5 arranged, each having an annular shape, so that a total of a casting cavity 6 is created to produce a conical tube section.
  • In the casting cavity 6 is initially a concrete base material 7 filled so that the casting 1 due to the precisely horizontally leveled base plate 3 an exactly horizontal bottom surface 8th formed. The concrete base material 7 However, it is not up to the full height of the casting to be produced 1 been filled in the casting cavity. Rather, it is an upper layer of the casting 1 through a second casting material 9 formed, which is considerably thinner than the concrete base material 7 , This thin liquid can either be a material property of the second base material until its hardening begins or it can be a thixotropic material which becomes particularly thin with mechanical excitation and, in contrast, becomes more viscous as soon as the mechanical excitation, for example vibrations acting on the material, is eliminated , In any case, this second casting material automatically forms an exactly horizontal upper surface 10 out and thus one to the bottom bottom surface 8th plane parallel surface.
  • As in particular by means of 2 is clarified, the device is 2 at least in the area where the upper surface 10 of the casting 1 is provided, designed in such a way that the casting 1 aligned surfaces of the inner and outer formwork 4 and 5 the second casting material are repulsive. This can be the case either by a material of the shuttering walls, or by a O berflächenbeschichtung the formwork walls, so that in any case the 2 apparent surface course of the upper surface 10 of the second casting material 9 is effected: Adjacent to the internal and external formworks 4 and 5 the top surface retracts 10 of the second casting material 9 downward. It is therefore precluded that upwardly projecting edges or edges are formed, which exceed the nominal dimension of the casting 1 out to the top.
  • In the illustrated embodiment, it was assumed that the inner and outer molds 4 and 5 define an annular casting cavity and that the casting 1 designed as a complete pipe section. Depending on the size of the component to be produced in total, it may be provided that with the aid of a similar device - such as the illustrated device 1 - No complete ring cross-section is made, but for example, only a semi-circular shape is created, so that accordingly the casting 1 is designed as a half-shell and it requires two such half-shells to create a total pipe section.

Claims (6)

  1. Casting, which consists of a concrete base material, and which has two plane-parallel surfaces, characterized in that the casting ( 1 ) on one of the two plane-parallel surfaces, a layer of a second casting material ( 9 ), which forms the plane-parallel surface, said second casting material ( 9 ) in its flowable state has a lower viscosity than the concrete base material ( 7 ).
  2. Casting part according to claim 1, characterized in that the second casting material ( 9 ) is a self-leveling material.
  3. Casting part according to claim 1 or 2, characterized in that the casting ( 1 ) is designed as a pipe section of an underground compressible pipe.
  4. Casting part according to claim 1 or 2, characterized in that the casting ( 1 ) is designed as a tower section of a wind turbine.
  5. Device for producing a cast part according to one of the preceding claims, characterized by a base plate ( 3 ), which has a precisely horizontally oriented surface, and at least two formwork walls ( 4 . 5 ), between them a casting cavity ( 6 ), the bottom surface ( 8th ) of the casting cavity ( 6 ) through the horizontally oriented surface of the bottom plate ( 3 ) is formed.
  6. Apparatus according to claim 5, characterized in that the casting cavity ( 6 ) delimiting formwork walls ( 4 . 5 ) at least in the region in which the upper edge of the casting cavity ( 6 ) is provided on its to the casting cavity ( 6 ) directed side with a second casting material ( 9 ) repellent surface are designed.
DE201020000169 2010-02-11 2010-02-11 Casting with plane-parallel surfaces and device for its production Expired - Lifetime DE202010000169U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE201020000169 DE202010000169U1 (en) 2010-02-11 2010-02-11 Casting with plane-parallel surfaces and device for its production

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201020000169 DE202010000169U1 (en) 2010-02-11 2010-02-11 Casting with plane-parallel surfaces and device for its production
EP20110154156 EP2359997A1 (en) 2010-02-11 2011-02-11 Cast part with coplanar surfaces and device for manufacturing same

Publications (1)

Publication Number Publication Date
DE202010000169U1 true DE202010000169U1 (en) 2010-05-12

Family

ID=42169207

Family Applications (1)

Application Number Title Priority Date Filing Date
DE201020000169 Expired - Lifetime DE202010000169U1 (en) 2010-02-11 2010-02-11 Casting with plane-parallel surfaces and device for its production

Country Status (2)

Country Link
EP (1) EP2359997A1 (en)
DE (1) DE202010000169U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011045319A1 (en) * 2009-10-14 2011-04-21 Wobben, Aloys Method for producing prefabricated compound tower-segment units for a tower of a wind plant, and formwork unit for producing prefabricated compound units
WO2011157659A1 (en) * 2010-06-14 2011-12-22 Max Bögl Bauunternehmung GmbH & Co. KG Tower of a wind power plant and method for producing a tower of a wind power plant
DE102011078016A1 (en) * 2011-06-22 2012-12-27 Aloys Wobben tower manufacturing
US8597564B2 (en) 2008-04-01 2013-12-03 Aloys Wobben Method for producing concrete prefinished parts
WO2014067884A1 (en) * 2012-10-30 2014-05-08 Technische Universität Wien Method for producing a tower construction from reinforced concrete
CN110434988A (en) * 2019-07-10 2019-11-12 上海市机电设计研究院有限公司 Polygon tower concrete prefabricated parts and its adjustable mould with fixed corner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110534215A (en) * 2019-08-05 2019-12-03 中国核工业华兴建设有限公司 A kind of Pipe installing depth of parallelism inspection method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05195597A (en) * 1992-01-22 1993-08-03 Nippon Concrete Ind Co Ltd Precast product
DE10017715A1 (en) * 2000-04-11 2001-10-18 Sf Koop Gmbh Beton Konzepte Manufacturing shaped blocks for sets of ground coverings involves applying compensating coating to base body or top with dimensions selected so block has exact desired dimensions
DE102008016828A1 (en) * 2008-04-01 2009-10-15 Wobben, Aloys Process for producing precast concrete parts
DE102009049435A1 (en) * 2009-10-14 2011-04-28 Wobben, Aloys Process for the manufacture of precast concrete elements and formwork unit for the production of precast concrete parts

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8597564B2 (en) 2008-04-01 2013-12-03 Aloys Wobben Method for producing concrete prefinished parts
WO2011045319A1 (en) * 2009-10-14 2011-04-21 Wobben, Aloys Method for producing prefabricated compound tower-segment units for a tower of a wind plant, and formwork unit for producing prefabricated compound units
EA023349B1 (en) * 2009-10-14 2016-05-31 Воббен, Алоис Formwork unit for producing prefabricated concrete units
US9091095B2 (en) * 2010-06-14 2015-07-28 Max Bogl Bauunternehmung Gmbh & Co. Kg Tower of a wind power plant and method for producing a tower of a wind power plant
US9243418B2 (en) 2010-06-14 2016-01-26 Max Bogl Bauunternehmung Gmbh & Co. Kg Tower comprising an adapter piece and method for producing a tower comprising an adapter piece
WO2011157659A1 (en) * 2010-06-14 2011-12-22 Max Bögl Bauunternehmung GmbH & Co. KG Tower of a wind power plant and method for producing a tower of a wind power plant
DE102011078016A1 (en) * 2011-06-22 2012-12-27 Aloys Wobben tower manufacturing
US9533428B2 (en) 2011-06-22 2017-01-03 Wobben Properties Gmbh Production of a tower
WO2014067884A1 (en) * 2012-10-30 2014-05-08 Technische Universität Wien Method for producing a tower construction from reinforced concrete
US9657494B2 (en) 2012-10-30 2017-05-23 Technische Universität Wien Method for producing a tower construction from reinforced concrete
CN110434988A (en) * 2019-07-10 2019-11-12 上海市机电设计研究院有限公司 Polygon tower concrete prefabricated parts and its adjustable mould with fixed corner

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Effective date: 20100617

R156 Lapse of ip right after 3 years

Effective date: 20130903