EP0758944B1 - Verfahren und vorrichtung zur kontinuierlichen herstellung faserverstärkter formkörper aus hydraulisch abbindbaren massen - Google Patents

Verfahren und vorrichtung zur kontinuierlichen herstellung faserverstärkter formkörper aus hydraulisch abbindbaren massen Download PDF

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Publication number
EP0758944B1
EP0758944B1 EP95919428A EP95919428A EP0758944B1 EP 0758944 B1 EP0758944 B1 EP 0758944B1 EP 95919428 A EP95919428 A EP 95919428A EP 95919428 A EP95919428 A EP 95919428A EP 0758944 B1 EP0758944 B1 EP 0758944B1
Authority
EP
European Patent Office
Prior art keywords
layers
substrates
process according
fibre
rollers
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
EP95919428A
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German (de)
English (en)
French (fr)
Other versions
EP0758944A1 (de
Inventor
Wolfgang Weiser
Gerd Joy
Melanie Gerling-Joy
Frank Cipriani
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.)
Durapact Gesellschaft fur Glasfaserbetontechnologie mbH
Original Assignee
Durapact Gesellschaft fur Glasfaserbetontechnologie mbH
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 Durapact Gesellschaft fur Glasfaserbetontechnologie mbH filed Critical Durapact Gesellschaft fur Glasfaserbetontechnologie mbH
Publication of EP0758944A1 publication Critical patent/EP0758944A1/de
Application granted granted Critical
Publication of EP0758944B1 publication Critical patent/EP0758944B1/de
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
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/003—Machines or methods for applying the material to surfaces to form a permanent layer thereon to insulating material
    • 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
    • B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
    • 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
    • B28B1/526—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement by delivering the materials on a conveyor of the endless-belt type
    • 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
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/0046—Machines or methods for applying the material to surfaces to form a permanent layer thereon to plastics
    • 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
    • B28B23/0006—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects the reinforcement consisting of aligned, non-metal reinforcing elements
    • 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
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/026—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length
    • 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
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/026—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length
    • B28B5/027—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed

Definitions

  • the invention relates to a method and an apparatus for the continuous production of fiber-reinforced Shaped body from hydraulically settable masses, these in at least one layer of predetermined width and Thickness from one or more dispensers to a moving one Underlay to be applied and glass fibers as reinforcement to serve.
  • DE-A-34 31 143 describes a method for Manufacture of moldings, e.g. B. plates fiber-reinforced hydraulically settable masses, in which the Mass without fibers in a given thickness on a base is applied to what comes from a cutter Fiber chips in a doped amount on the surface of the Scattered mass and with one over the entire Working width working tool pressed into the mass be, whereby the mass is compressed at the same time. Only a relatively small proportion of is disadvantageous Reinforcement material and also only in an outer area the plate in a structurally unfavorable arrangement.
  • DE-A-24 56 712 describes a method for Manufacture of moldings from fiber concrete known in which Fibers sprayed onto not yet hardened concrete, sprinkled or sprinkled and then rolled or be smoothed.
  • the fibers are cut with a cutter cut continuously from fiberglass rovings. she can be applied in several layers and then cement be powdered to absorb excess water.
  • the fibers are said to be crack-free, better water-insulating Concrete surface can be achieved.
  • the sprinkling and The fibers are rolled in in a manual process a cutting tool and a hand roller.
  • premix Mixed material, which is a homogeneous mixture of fresh concrete and contains glass fibers, on a base in uniform Apply layer thickness. Processing of "premix” finds its limits with the amount to be added Glass fibers, because the higher proportions Difficult to process the mixture or impossible and the reinforcement content for thin slabs in the Is usually too low.
  • the invention has for its object a method and to provide a device with which it is possible fiber-reinforced panels with precisely specified and occasionally also produce small thickness, these in If necessary, two smooth or structured "good pages" have and with controllable dosing of proportions of reinforcement material, especially with higher ones Reinforcement proportions and with exact positioning of the Reinforcement in statically stressed zones of the Plate layer can be produced at high output.
  • the plates should immediately or afterwards, however in fresh condition, further to three-dimensional shaped bodies can be processed.
  • the method gives the advantage that the work steps compared to known processes in a continuous Sequence rationalized into one another and Inaccuracies such as those caused by the interaction of several temporally shifted and interdependent Work steps caused are largely avoided will.
  • Fiber parts of the reinforcement in the new Proceed the so far regarded as the maximum limit Quantity of about 5% by weight to the total matrix without restriction far exceed.
  • One embodiment provides that the mass at their Preparation mixed with a small amount of glass fibers becomes.
  • the Mass of glass fibers in an amount of 0.01 to 4% by weight, preferably between 1 and 1.5% by weight can be added.
  • the mass is in a continuous mass flow on the shaping base applied and extruded from case to case, with the donor at a defined distance progressive documents are discontinued.
  • the mass becomes a predetermined thickness of the first laminate layer achieved and adhered to high accuracy.
  • Glass fibers made of AR, E, C, or ECR glass, also metal fibers (Fibraflex), Micro steel fibers, plastic fibers, aramid fibers or Carbon fibers are used.
  • the fabrics can continuous yarns, rovings, bonded fiberglass mats, Nonwovens, woven fabrics, lattice woven fabrics, non-woven fabrics (also multiaxial), Complex fiber mats or combinations of these delivery forms act.
  • An embodiment essential to the invention provides that between the reinforced layers during their union a mass layer can be injected.
  • Styrofoam blocks or other organic or too mineral material in the form of plates or blocks becomes an inseparable bond of each other unifying layers reached, their binding process promoted and in the case of a subsequent shaping the Plasticity of the plate improved, which makes it even more so unbound plate-like product easily one Shaping into three-dimensional structures, for example can be subjected.
  • Such a shape can for example for the production of corrugated sheets, channels, Pipes and similar products are used.
  • the calibration of the individual matrix layers is done by setting a distance between the Mouthpiece of a dispenser or funnel and the base.
  • the end product is determined by the dimension of the gap exactly forward and by means between the deflection roller cylinders Recalibrated fine calibration rollers.
  • Another measure essential to the invention provides that the masses in the dispensers are degassed by shaking and / or be compressed. Furthermore, the Matrix layers during or after their application to the Documents are shaken and thus further compressed, whereby at the same time the applied vibrations Sheets intimately with the matrix layer receiving them get connected.
  • the layers are under during their union Use of cylindrical rollers deflected and between the Documents with specified pressure on both Outside surfaces shaped and connected at the same time. In this way, an exact parallelism of the Surfaces of the product as well as a given Panel thickness automatically with no further steps achieved great accuracy. Furthermore, they can be fresh joined layers in the deflection area Discharge direction using at least one Support roller supported and recalibrated.
  • a device for continuous production fiber-reinforced molded body made of hydraulically bindable Masses for carrying out the method according to the invention comprising at least one movable base and above from this hopper for the order one Mass layer on the base as well as fiber discharge and Allotment devices and means for introducing the fibers into the mass layer is characterized in that it two oppositely movable to a few drivable Cylinder rollers guided documents and at least a feed hopper assigned to each document and an allocation device for fiberglass fabrics and Means for their integration into the layered applied mass, and that the cylinder rollers form an adjustable gap between them.
  • a feed hopper is arranged on the cylinder rollers.
  • the device is of great advantage compared to that easy to manufacture multi-layer product, compact and allows for relatively large Production speed with a high output extreme accuracy of the layer sequence in the end product.
  • Figure 1 shows a device for continuous Manufacture of fiber-reinforced molded parts from hydraulic settable masses.
  • This includes two opposing ones movable cylinder rollers (30, 31) which can be driven by a pair deflectable documents (20, 21) and at least one feed hopper (10,) assigned to each support (20, 21) 11), further allocation devices (14, 15) for Glass fiber sheet (3, 4).
  • the feed hopper (10, 11) are arranged vertically and each have one in the width and the gap width with adjustable Distance to the documents (20, 21) trained Gap opening.
  • the documents (20, 21) can be tapes any material, they can be on the surface with the sticking of the concrete mass to be applied preventive coating, for example with silicone, be equipped and are occasionally to form the Structured outer surfaces of the product to be formed (7).
  • the documents (20, 21) determine the desired optical quality of the Layers (1, 2) and should bring them together enable.
  • In cooperation with the pro Unit of time applied amount of matrix from the funnels (10 and 11) in relation to the transport speed of the Documents (20, 21) are obtained with an adjustable distance between the gap opening of the funnels (10, 11) and the Documents (20, 21) an individual thickness adjustment of the Matrix layers (1 or 2).
  • the fiber allocators (14, 15) for fabrics (3, 4) can around Deflection pulleys (16, 17) be guided endless belts.
  • the documents (20, 21) and / or the cylindrical rollers (30, 31) can have a smooth or textured surface exhibit. This is at the same time as the continuous Manufacture of the plate-shaped product (7) on the both surfaces have an intended condition - either completely smooth or with a textured pattern - manufactured, this surface texture free selectable on both surfaces or only on one Surface provided or on both surfaces is different.
  • a void-free and dense nature of the end product (7) is achieved in that both supports (25, 26), Feed hopper (10 - 12) and / or cylindrical rollers (30, 31) are each formed with vibrators (24).
  • Figure 2 shows a slightly changed design of the Contraption.
  • Supports (25, 26) and documents (20, 21) have means (not shown) to adjust the inclination in any adjustable angle alpha and for lifting the funnel (10, 11).
  • Due to the inclination of the aforementioned Plant parts, with the fiber allocations (14 and 15) with the deflection rollers (16 and 17) of the angle adjustment Alpha follow will be achieved on the dossier (20, 21) formed matrix layers (1, 2) with the Glass fiber reinforcements (3, 4) and the middle layer (5) using the force of gravity in the gap (32) form-fitting to an intimate bond with each other be united.
  • the device of Fig. 2 basically the same design as the device 1, wherein the same elements with the same Reference numbers are designated.
  • Figure 3 shows a further embodiment of the device.
  • each Task tables (50, 51) are arranged, the task tables (50, 51) are each equipped with vibrators (54). Vibrators (54) can be at any point, preferably on Discharge will be provided.
  • the funnels (10, 11) are arranged and between them the documents (20, 21) promoted to the respective the fabrics (3, 4) are given in at an angle from above on which the layers (1, 2) from the Matrix dispensers (10, 11) are applied.
  • the plates that can be produced with the invention have a lot beneficial properties. You can in simpler Extremely thin, yet very stable, can continue with a filling, especially under Use of lightweight concrete, light and thick, with smoother or textured surface one-sided or double-sided trained and suitable for further shaping.
  • the method enables a very high one if necessary Fiber doping through the incorporation of fiber sheets and their exact positioning. During further processing fresh fiber-reinforced laminates can do this Wrap, press, lay on or fold various shapes accept. It proves to be particularly advantageous exact definition of the panel thickness by compacting and Squeezing between the cylinder rollers (30, 31) and Fine calibration rollers (33, 34).
  • the Matrix predominantly made of cement, normal cement or Special cement with addition of plaster, occasionally with Light aggregate substances such as pumice or expanded clay, foam glass, Additives, water, polymers and agents for Achieve resistance to aging.
  • the measures according to the invention are not based on those in the Exemplary embodiments shown in the drawings limited. Possible modifications of the invention
  • the method and the device can consist in that any layers and / or fabrics in any Number before or after the first or further funnels can be abandoned. Also are different Arrangements of the cylindrical rollers conceivable, for example, too one above the other, with or without shifting against each other towards the vertical.
  • the respective constructive Design is in line with special uses the device free to the specialist.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Reinforced Plastic Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
EP95919428A 1994-05-09 1995-05-09 Verfahren und vorrichtung zur kontinuierlichen herstellung faserverstärkter formkörper aus hydraulisch abbindbaren massen Expired - Lifetime EP0758944B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4416160A DE4416160A1 (de) 1994-05-09 1994-05-09 Verfahren und Vorrichtung zur kontinuierlichen Herstellung faserverstärkter Formkörper aus hydraulisch abbindbaren Massen
DE4416160 1994-05-09
PCT/EP1995/001741 WO1995030520A1 (de) 1994-05-09 1995-05-09 Verfahren und vorrichtung zur kontinuierlichen herstellung faserverstärkter formkörper aus hydraulisch abbindbaren massen

Publications (2)

Publication Number Publication Date
EP0758944A1 EP0758944A1 (de) 1997-02-26
EP0758944B1 true EP0758944B1 (de) 1998-07-15

Family

ID=6517567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95919428A Expired - Lifetime EP0758944B1 (de) 1994-05-09 1995-05-09 Verfahren und vorrichtung zur kontinuierlichen herstellung faserverstärkter formkörper aus hydraulisch abbindbaren massen

Country Status (13)

Country Link
US (1) US5814255A (pl)
EP (1) EP0758944B1 (pl)
JP (1) JPH09512758A (pl)
AT (1) ATE168313T1 (pl)
BR (1) BR9507578A (pl)
CZ (1) CZ309296A3 (pl)
DE (2) DE4416160A1 (pl)
DK (1) DK0758944T3 (pl)
ES (1) ES2121387T3 (pl)
HU (1) HUT77972A (pl)
PL (1) PL177600B1 (pl)
SK (1) SK137496A3 (pl)
WO (1) WO1995030520A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941074A1 (de) * 1999-08-30 2001-03-01 Wolfgang Weiser Verfahren und Vorrichtung zum Herstellen von ein- oder mehrschichtigen faserverstärkten Flächenprodukten

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Publication number Priority date Publication date Assignee Title
DE19650432A1 (de) * 1996-12-05 1998-06-10 Wolfgang Weiser Verfahren und Vorrichtung zum Herstellen eines Flächenproduktes mit einer faserverstärkten Beton-Matrix
USD429822S (en) * 1999-09-15 2000-08-22 Jensen Daniel M Building unit
US6676862B2 (en) 1999-09-15 2004-01-13 Advanced Building Systems, Inc. Method for forming lightweight concrete block
ATE368017T1 (de) 2000-03-14 2007-08-15 James Hardie Int Finance Bv Faserzementbaumaterialien mit zusatzstoffen niedriger dichte
US6521152B1 (en) * 2000-03-16 2003-02-18 Honeywell International Inc. Method for forming fiber reinforced composite parts
MXPA03007890A (es) 2001-03-02 2003-12-04 James Hardie Res Pty Ltd Aparato para rociadura.
US20030164119A1 (en) 2002-03-04 2003-09-04 Basil Naji Additive for dewaterable slurry and slurry incorporating same
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
DE102005004149A1 (de) * 2005-01-28 2006-08-03 Xella Trockenbau - Systeme Gmbh Leichtbauplatte sowie Vorrichtung und Verfahren zu ihrer Herstellung
US20060214335A1 (en) * 2005-03-09 2006-09-28 3D Systems, Inc. Laser sintering powder recycle system
US8209927B2 (en) 2007-12-20 2012-07-03 James Hardie Technology Limited Structural fiber cement building materials
WO2010145928A1 (de) * 2009-06-16 2010-12-23 Construction Research & Technology Gmbh Mehrschichtige baufertigplatte und verfahren zu seiner herstellung
US10919286B2 (en) * 2017-01-13 2021-02-16 GM Global Technology Operations LLC Powder bed fusion system with point and area scanning laser beams
IT201800010612A1 (it) * 2018-11-27 2020-05-27 Granitifiandre Spa Metodo ed impianto per la formatura di lastre ceramiche

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CA1048698A (en) * 1973-07-20 1979-02-13 Robert C. Geschwender Mastic composition and composite structural panels formed therefrom
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941074A1 (de) * 1999-08-30 2001-03-01 Wolfgang Weiser Verfahren und Vorrichtung zum Herstellen von ein- oder mehrschichtigen faserverstärkten Flächenprodukten
DE19941074B4 (de) * 1999-08-30 2010-06-02 Wolfgang Weiser Verfahren und Vorrichtung zum Herstellen von ein- oder mehrschichtigen faserverstärkten Flächenprodukten

Also Published As

Publication number Publication date
DK0758944T3 (da) 1999-04-19
DE59502836D1 (de) 1998-08-20
ATE168313T1 (de) 1998-08-15
PL177600B1 (pl) 1999-12-31
HUT77972A (hu) 1999-01-28
HU9602843D0 (en) 1996-12-30
EP0758944A1 (de) 1997-02-26
JPH09512758A (ja) 1997-12-22
US5814255A (en) 1998-09-29
WO1995030520A1 (de) 1995-11-16
BR9507578A (pt) 1997-09-09
DE4416160A1 (de) 1995-11-16
ES2121387T3 (es) 1998-11-16
SK137496A3 (en) 1997-04-09
CZ309296A3 (en) 1997-07-16
PL316780A1 (en) 1997-02-17

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