WO2008000033A1 - Élément et ensemble intercalaire, et procédé de fabrication de plaques en fibrociment - Google Patents

Élément et ensemble intercalaire, et procédé de fabrication de plaques en fibrociment Download PDF

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Publication number
WO2008000033A1
WO2008000033A1 PCT/AU2007/000898 AU2007000898W WO2008000033A1 WO 2008000033 A1 WO2008000033 A1 WO 2008000033A1 AU 2007000898 W AU2007000898 W AU 2007000898W WO 2008000033 A1 WO2008000033 A1 WO 2008000033A1
Authority
WO
WIPO (PCT)
Prior art keywords
interleaving
fibre
interleaving element
elements
side wall
Prior art date
Application number
PCT/AU2007/000898
Other languages
English (en)
Inventor
Peter Levander
Original Assignee
Csr Building Products Limited
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
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Priority claimed from AU2006903538A external-priority patent/AU2006903538A0/en
Application filed by Csr Building Products Limited filed Critical Csr Building Products Limited
Priority to AU2007264407A priority Critical patent/AU2007264407A1/en
Publication of WO2008000033A1 publication Critical patent/WO2008000033A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245—Curing concrete 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/248—Supports for drying
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/08—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of metal, e.g. sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/14—Chambers, containers, receptacles of simple construction
    • F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
    • F26B25/185—Spacers; Elements for supporting the goods to be dried, i.e. positioned in-between the goods to build a ventilated stack
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
    • E04B1/6125—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface
    • E04B1/6137—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface the connection made by formlocking
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
    • E04B1/6125—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface
    • E04B1/6141—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface the connection made by an additional locking key

Definitions

  • the present invention relates generally to an interleave element and an interleave assembly made up from multiple such elements, which can be used in the manufacture of fibre-cement panels especially involving their curing step in an autoclave.
  • spacers that are also known as “breather panels” or “interleaves” in order to separate stacks of the panels during the autoclaving process so as to ensure that all the fibre-cement panels in the stacks are properly cured.
  • These spacers allow efficient heat transfer into the product during the autoclave curing.
  • a number of stacks each containing about twenty to forty or so fibre-cement sheets are placed into an autoclave so as to be “cured”.
  • a spacer to provide an air gap between two vertically adjacent stacks of the fibre-cement panels.
  • This spacer assists with the penetration of heat and steam in the autoclave around and among the fibre-cement panels, particularly those that are near the centre of each of the vertical stacks. Without the use of a spacer, there is a risk that panels centrally located within a vertical stack will not be properly cured.
  • these spacers have been constructed from segments taken from the fibre- cement panels themselves.
  • An existing fibre-cement panel is cut along its shorter width into strips all having a similar size. These strips are then laid on to another fibre- cement panel at regular intervals and yet another fibre-cement panel is then placed on to the exposed top surface of the fibre-cement panel strips, to make a "sandwich”.
  • a plastic coating is then applied around the spacer constructed in this way, and heat is then used to allow the plastic to melt in order to create an adhesive coating that is formed around this fibre-cement type of spacer so as to help maintain its structural integrity so as to prevent the fibre-cement spacer from coming apart during use in the autoclaving process.
  • a further disadvantage of conventional fibre-cement spacers is that due to the extremely corrosive environment in the autoclave, the fibre-cement spacers start to become very brittle, and they begin to break down after approximately 4 to 5 cycles • through the autoclave.
  • the atmosphere in an autoclave is alkaline 18O 0 C steam, which is a harsh environment.
  • alkaline 18O 0 C steam which is a harsh environment.
  • Autoclaving typically takes twelve hours, and so there is a need to have a sufficient supply of interleaves to cover the production process for this period, and commonly two to three times this quantity is preferred, to hold in stock.
  • One such known spacer or interleave assembly uses stainless-steel in place of the fibre- cement material, with the same physical arrangement.
  • Stainless-steel interleaves are made from stainless-steel spacer elements and sheets that are welded together.
  • the disadvantages of using these stainless-steel interleaves are that the welding process is labour intensive and thus the cost of making them is high. Also, it is difficult to maintain the tolerance levels for their manufacture within acceptable limits. For example, it is difficult to ensure that each stainless-steel interleave are substantially flat when they are produced by a welding process.
  • this interleave is constructed by taking a number of substantially hollow stainless-steel extrusions which are welded to a flat sheet of stainless steel, and then a second flat sheet of stainless steel is welded on to the exposed surface of these extrusions. While these interleaves can be used for many more "cycles" through the autoclave than for the fibre-cement spacers, without breaking down or corroding, they have a high cost. They are also difficult to manufacture due to the large amount of welding that is required to connect the separate elements of the stainless-steel interleave together.
  • an interleaving element for use in the manufacture of fibre-cement panels, the interleaving element having a profile of constant cross-section extending in the direction of a first axis and a substantially void interior, the interleaving element comprising opposed spaced apart first and second panel members interconnected to each other by two opposed spaced apart side wall members, wherein each of the side wall members have engagement means that are adapted to allow the element to be removably connected to at least one like interleaving element, to allow the first and second panel members to abut corresponding first and second panel members of the like interleaving element.
  • the interleaving element preferably has at least one web member located between the side wall members connecting the first and second panel members, and most preferably has two web members spaced evenly between, and parallel to, the side wall members.
  • the interleaving element preferably also has fastening means, to allow adjacent like interleaving elements to be locked together once they have been connected together. It is preferred that the fastening means can be reversed to allow like interleaving elements to be unlocked and disconnected, once they have been connected together.
  • the interleaving element in one embodiment may have at least one of the side wall members being adapted to be removably connected to an adjacent like interleaving element by slidably engaging the adjacent interleaving elements together via the engagement means in a direction parallel to the first axis of each interleaving element.
  • the engagement means of one of the side wall members is male and the engagement means of the other of the side wall members is female.
  • Each of the engagement means may have a notch formed therein, the notch having a substantially semi-circular cross-section and being adapted to match with a like notch of a like interleaving element to form a substantially cylindrical aperture when the engagement means of adjacent like elements are connected together.
  • the cylindrical aperture may be adapted to retain a threaded screw as fastening means in order to lock adjacent elements together.
  • the element is manufactured from extruded aluminium.
  • the first and second panel members provide a substantially flat outer surface.
  • Another aspect of the invention concerns an interleave assembly for use in autoclaving fibre-cement panels during their manufacture, where the interleave assembly comprises at least two of the interleaving elements as describe above connected to each other.
  • Yet another aspect of the invention concerns a process for autoclaving fibre-cement panels during their manufacture, the process comprising the steps : (a) producing a plurality of fibre-cement panels by a Hatschek or a like process; (b) forming a substantially vertical stack that comprises an interleave assembly upon which is stacked a plurality of the fibre-cement panels on top of each other; (c) optionally repeating step (b) one of more times; to forming an autoclave pack; (d) creating or placing the autoclave pack in an autoclave; and (f) curing the fibre-cement panels in the autoclave.
  • Figure 1 depicts a perspective view of an interleave assembly composed of a number of interleaving elements connected together;
  • Figure 2 depicts an enlarged end view of an interleaving element as shown in Figure 1;
  • Figure 3 depicts a partial end view of an interleaving element shown in Figure 2 connected with an adjacent like element;
  • Figure 4 depicts a plan view of an interleave assembly comprising an array of nine like interleaving elements assembled together and secured by fastening means.
  • Figure 5 depicts a perspective view of a plurality of fibre-cement panels in an autoclave pack using the interleave assemblies shown in Figure 1.
  • Figures 1 to 5 generally depict an interleave assembly (2) for use in the manufacture of fibre-cement panels composed of an array having a number of interleaving elements (1) that are connected together.
  • the interleave assembly (2) is able to be used in an autoclaving step that is often part of the manufacture process for fibre-cement panels.
  • each interleaving element (1) is preferably adapted to engage by sliding with at least one adjacent like interleaving element (1), to form an assembly composed of a number of these elements side by side.
  • Other methods for interconnecting a plurality of such elements may also be employed.
  • individual elements may be linked together using tongue and groove joins, mortise and tenon type joins, lap joins, dovetail joins, or the like. The linkage should be such that the elements can be separated and reattached as needed.
  • the preferred method of slidable self-mating in the embodiment shown is easy to assemble into longer units, which generally matches the length of the fibre cement panels it will support.
  • Each of the interleaving elements (1) is made from any suitable material, but is most preferably may be manufactured from extruded aluminium.
  • Other possible materials include stainless-steel, or synthetic materials such as plastics. More than one such material may be utilised. Whichever material is chosen, it should preferably stand up well to the conditions within the autoclave, including the heat, steam and caustic environment there. Extruded aluminium is excellent in these conditions, and also its manufacture by extruding is relatively inexpensive as it involves a low labour component.
  • the size of the element should match that of the fibre-cement panels it is to support.
  • the width of the assembly can easily be adjusted by adding or taking away elements from the total array.
  • the width of an individual element should be selected to be a size so that an exact number of elements can be assembled together to provide a matching width to the commonly produced fibre-cement boards.
  • fibre- cement boards may commonly be produced with widths of 900mm, 1200mm and 1350mm.
  • an assembly can cater for these production widths by being created from 6, 8 and 9 of the elements respectively.
  • the depth of each element would likewise be selected to suit the size of the fibre- cement boards it is to support, such as 2440 or 3000mm.
  • the height can be any suitable height, such as 18mm as one example.
  • each of the interleaving elements (1) comprise a first panel member (12) and an opposed, spaced apart second panel member (13) that are interconnected to each other by first and second opposed, spaced apart wall members (3 & 4).
  • the first and second panel members are generally flat. These panel members are generally parallel to each other, to allow for vertical stacks.
  • the panels and wall members may be integral with each other, such as when the element is made from extruded aluminium.
  • the walls and panels may be any suitable thickness, such as all having a thickness of 2.5mm, for example, and may be of the same or different, or varying thicknesses.
  • first and second wall members (4 & 5) there are preferably one or more, and most preferably two web members (10), although it should be understood that any number of web members (10) may be utilised within the scope of this invention. In some cases, particularly where the distance between the first and second wall members (4 & 5) is sufficiently short there may be no web members (10) as it would not then be necessary to reinforce the first and second panel members (4 & 5).
  • the number of web members should be sufficient to support the panel members when a number of stacks of fibre- cement panels and other interleave assemblies is placed on top.
  • the web members will preferably perpendicular to the first and second panels (12 & 13), but other arrangements may be utilised, especially those that increase the strength and rigidity of the overall element, such as an "X" or zigzag arrangement.
  • the web members may also be arranged to form cells, and/or to run parallel to the first and second panel members.
  • two web members (10) extend between the first and second panel member (12 & 13) and are located between said side wall members (3& 4) in order to provide strength and rigidity to the first and second panel members (12 & 13).
  • the arrangement and thicknesses of the web members should be appropriate for their purpose of providing support.
  • extruded aluminium elements of 150 mm in width
  • two evenly spaced apart web elements may be used, each of 2.5mm thickness, and positioned 45mm apart between the side walls, to create equal sized voids within the element.
  • Figures 2 and 3 show an end view of the interleaving element (1). It should be understood that the end view shown in Figures 2 and 3 is the same as a cross-sectional view because each of the interleaving elements are preferably manufactured from extruded aluminium and therefore have a constant cross-section.
  • the two ends of the element are preferably left open, to allow heated air and steam to circulate when inside the autoclave. However, if desired, one or both of the ends may have some partial closure, such as with mesh for example. This may assist in keeping the interior voids from collecting rubbish, for example. Any partial closure may preferably be removable, to allow for cleaning, for instance.
  • the interleaving element will preferably have fastening means to allow adjacent like interleaving elements to be locked together once they have been connected together in an assembly.
  • the fastening means most preferably may be able to be reversed to allow like interleaving elements to be unlocked and disconnected, once they have been connected together. This will allow for easy repairs, should one of the elements be damaged. Additional elements can easily be added and removed to alter the width of the assembly. Locking the elements against each other prevents them moving, and provides a stable and structurally sound assembly.
  • the fastening means may be provided as part of the engagement means or may be separate.
  • the profile of the interleaving element (1) shows the male and female engagement means (5, 6) each having semi-circular notches (7) therein.
  • the semi-circular notch (7) of the male engagement means (6) of a first element (1) will oppose the semi-circular notch (7) of the corresponding female engagement means of a second element (1) to form a cylindrical aperture (8).
  • the cylindrical aperture (8) will permit a self-drill screw, or the like, to be inserted, in order to fix the elements in place, and prevent their sliding apart.
  • the ' aperture may be threaded or not; if a self threaded screw is used, its thread may grip the relatively soft aluminium within the aperture.
  • fastening means may be used, to fix the slidable elements in place.
  • a pin may be used that passes through two of the element side walls. Whatever fastening means is used, preferably it should be easy to access, and easy to operate.
  • first and second wall members (3 & 4) have engagement means (5 & 6) thereon.
  • first wall member (3) comprises a male engagement means (6)
  • second wall member (4) comprises a female engagement means (5).
  • the male engagement means (6) of a first interleaving element (1) is adapted to engage with a female engagement means (5) of an adjacent like interleaving element (1).
  • adjacent like interleaving elements (1) are adapted to be slidably connected to each other such that the male engagement means (6) of a first interleaving element (1) is able to slide within the female engagement means (5) of a second, adjacent interleaving element 1.
  • the interleaving elements 1 are slidably engageable in a direction shown by the axis ("X"), which is parallel to the profile of constant cross-section of said interleaving element.
  • FIG 4 shows an interleave assembly (2) comprising an array of interleaving elements (1) connected together.
  • a fastening means (9) in the form of a self- taping screw, is inserted into the circular aperture (8) to help minimise or prevent the individual interleaving elements (1) from moving relative to each other in the direction of axis (X), which is in the same direction as the profile of constant cross-section of the element (1).
  • fastening means (9) are conventional threaded screws having a head with a greater circumference than the circular aperture (8) such that the screw (9) substantially prevents movement of each element (1) relative to an adjacent like element 1 in the direction of axis (X).
  • Figure 5 shows a plurality of fibre-cement panels (11) stacked on top of each other forming a substantially vertical stack and placing at least one interleave assembly (2) between two fibre-cement panels (4) in a so-called "autoclave pack".
  • This autoclave pack can be inserted into an autoclave to cure the fibre-cement panels.
  • an interleave assembly (2) is placed between two vertically adjacent fibre-cement panels at intervals of approximately twenty fibre-cement panels (11).
  • any suitable number of fibre-cement panels may be disposed between the interleave assemblies (2).
  • the interleave assemblies (2) provide a sufficient space at regular intervals between the fibre-cement panels (11) to allow heat and steam in the autoclave to sufficiently "cure" the fibre-cement panels that are in or near the centre of the vertical stack of fibre-cement panels in the autoclave.
  • a notch that is of a different shape may replace the semi-circular notches (7) that form cylindrical aperture (8).
  • each of the male and female engagement means (5, 6) may have a square or rectangular notch that simply form a square or rectangular aperture when adjacent like elements (1) are engaged together.
  • the fastening means (9) may be of a different type to a conventional threaded screw.
  • the assembly is constructed by combining the appropriate number of elements, to match the size of the fibre-cement panels it is to support.
  • the desired number of panels are added on to the assembly. This may be repeated a number of times, to produce a number of stacks of panels each upon an interleave assembly. These stacks are then combined into a larger stack of panels and assemblies, to provide an autoclave pack, as shown in Figure 5.
  • the autoclave pack is built by laying down an assembly, adding a number of panels on to the assembly to form a stack, adding another assembly to the stack, and repeating this until the pack contains the desired amount of panels. An assembly is generally added to the top of the stack. The autoclave pack is then cured in the autoclave. This system operates particularly in the Hatschek or a like process to produce fibre-cement panels. - Ll -
  • the invention applies to the manufacture of fibre-cement panels which involves the curing of the panels in an autoclave.
  • the panels are stacked on interleave assemblies that are composed of a number of interleaving elements, according to the invention.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

La présente invention concerne un élément intercalaire, utilisé lors de la fabrication de plaques en fibrociment, qui peut s'associer à des éléments analogues afin de parvenir à un ensemble intercalaire. L'ensemble intercalaire peut servir d'espaceur pour soutenir les plaques au cours de l'étape d'autoclave pendant la production des plaques. Chaque élément intercalaire comprend un profilé de section transversale constante, qui s'étend dans la direction d'un premier axe, et un espace intérieur sensiblement vide. L'élément intercalaire se compose de premier et second éléments plaque opposés espacés qui sont reliés entre eux par deux éléments paroi latérale opposés espacés. Chaque élément paroi latérale comporte des moyens d'engagement qui sont conçus pour permettre à l'élément intercalaire d'être relié de manière amovible à au moins un élément analogue de type intercalaire. Ceci permet aux premier et second éléments plaque d'être contigus aux premier et second éléments plaque correspondants de l'élément analogue de type intercalaire. De préférence, l'invention comprend des éléments bande disposés entre les éléments paroi latérale, ce qui permet de relier les premier et second éléments plaque. L'invention comporte aussi de préférence des moyens de fixation qui permettent de verrouiller ensemble les éléments analogues adjacents de type intercalaire, une fois ceux-ci reliés. Le cas échéant, les éléments peuvent être déverrouillés. De préférence, l'élément intercalaire est en aluminium extrudé.
PCT/AU2007/000898 2006-06-29 2007-06-28 Élément et ensemble intercalaire, et procédé de fabrication de plaques en fibrociment WO2008000033A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2007264407A AU2007264407A1 (en) 2006-06-29 2007-06-28 Interleaving element and assembly, and method for manufacturing fibre-cement panels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2006903538 2006-06-29
AU2006903538A AU2006903538A0 (en) 2006-06-29 Interleave Assembly & Method for Manufacturing Fibre Cement Panels

Publications (1)

Publication Number Publication Date
WO2008000033A1 true WO2008000033A1 (fr) 2008-01-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2016100917B4 (en) * 2015-10-30 2017-02-09 Abid Alagic Panel
CN110093988A (zh) * 2019-06-10 2019-08-06 吴义珑 一种混凝土预制件

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637860A (en) * 1981-06-19 1987-01-20 Cape Building Products Limited Boards and panels
NL9500136A (nl) * 1995-01-25 1996-09-02 Elten Systems Bv Werkwijze en inrichting voor het verharden van platen of andere gevormde voorwerpen uit vezels of spaanvormige deeltjes met cement als bindmiddel.
JPH1110617A (ja) * 1997-06-27 1999-01-19 Kubota Corp 繊維補強セメント板の製造方法
AU300812S (en) * 2004-08-25 2005-03-07 Open Sesame Automation Pty Ltd Manufacturing of gates shopfronts louveres and balustrading
US20060080927A1 (en) * 2004-10-15 2006-04-20 Werzalit Ag & Co. Kg Profiled element for establishing tongue and groove connections, and laminate thereof
AU306853S (en) * 2005-01-13 2006-05-19 Werzalit Ag & Co Kg Floor boards

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637860A (en) * 1981-06-19 1987-01-20 Cape Building Products Limited Boards and panels
NL9500136A (nl) * 1995-01-25 1996-09-02 Elten Systems Bv Werkwijze en inrichting voor het verharden van platen of andere gevormde voorwerpen uit vezels of spaanvormige deeltjes met cement als bindmiddel.
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