EP1296013B1 - Fire-resistant building profile and method for producing the same - Google Patents

Abstract

Fire-resistant profile component comprises two essentially U-shaped profile parts made from extruded aluminum forming an inner supporting shell (3) and an outer supporting shell (4). The profile parts are connected on their free side ends (300, 301, 400, 401) using thermally separating insulating bars (6) to form a composite profile (35) surrounding a single hollow chamber (H). The chamber is filled with a fireproof insulating material. An Independent claim is also included for a window or door containing a frame made from sections of the profile parts. Preferred Features: The free side ends of the inner and outer supporting shells have an undercutting groove (302, 402) into which the insulating rods are inserted using a static composite profile. The fireproof insulating material contains magnesium oxychloride cement having a composition with molar ratios of MgCl2/Mg(OH)2/H2O of (2.5-5):(8-12) (sic), produced from a mixture of magnesium oxide and concentrated, especially saturated or over-saturated, aqueous magnesium chloride solution.

Description

The invention relates to a fire-resistant profile component for the production of Windows, doors, wall elements, facades and the like. Furthermore concerns the invention a method for producing such a fire-resistant Profile component.

In EP 0 717 165 B1 a fire retardant profile component is described, which as Multi-chamber profile made of light metal, preferably aluminum, with a Insulating web reducing heat flow is manufactured. With this framework the outer and the inner shell each enclose a hollow chamber these two Hollow chambers are created using an insulating bridge and embedded bridge bridges connected so that a three-chamber profile is formed. Be in these chambers Fire protection panels inserted, which are fixed by means of metal springs. In case of fire the fire protection panels release crystal water that cools the aluminum profile and prevents melting of the aluminum profile facing the fire. This Construction has the disadvantage that it only works for fire resistance times up to 30 Minutes. Higher fire resistance times of 60, 90 or 120 minutes cannot be reached with this.

A frame system is also known from EP 0 785 334 B1, which also consists of Aluminum multi-chamber profiles is manufactured. With this frame system proposed that an aluminum core profile is formed in each case, which the Fire protection glazing bears. This core profile are outer and inner shells upstream, so that a three-chamber profile is also formed here. The load-bearing The core profile or the two outer shells are the one with the heat flow reducing insulating web connected. The chamber of the core profile or the two Hollow chambers of the outer shells are filled with a fire protection insulating compound, so that the outer shells in the event of a fire are the load-bearing core of the aluminum profile protect.

DE 44 43 762 A1 describes a fire protection element, in particular for building one Framework on a building for holding a clampable component, such as a fire protection glazing or panel, known, the one core profile, one the core profile surrounding heat-insulating filling compound, one enclosing the filling compound Has casing and an outer cover strip for clamping the component, wherein the core profile, the filling compound and the cladding form a composite body. The Framework is designed in such a way that on the fire-bearing side Light metal profiles can be used, whose melting point is lower than the temperature to be expected in the event of a fire, which acts on the metal profiles, where melting of these load-bearing light metal profiles over a predetermined safety period should be prevented. For this purpose are on the outside or / and plates or on the inside of the aluminum profiles made of aluminum Shaped body made of a heat-binding, hydrophilic adsorbent with a high water content attached. In a preferred embodiment, the material of the plates is concerned or molded body around a mixture of gypsum and alum, which when exposed to heat has an energy-consuming effect. The plates set when a response temperature is reached or shaped bodies free crystal water, through which the metal structure is cooled. The Energy-consuming material can also be placed in a liquid form in the inner chamber Metal profile are filled and then binds to a solid in the inner chamber Shaped body.

The invention has for its object to produce a with less effort Fire-resistant profile component and a method for the same To create manufacturing, the profile component at simpler and cheaper Manufacturing is suitable to fire resistance times of 30, 60, 90 and 120 minutes consist.

To this end, the invention proposes that the profile component in each case have a load-bearing interior and outer tray, which by means of an insulating web, the z. B. made of polyamide or PVC, is non-positively and positively connected, so that for the normal Use, i.e. not in the event of fire, a statically stable composite profile is formed. This composite profile surrounds a single hollow chamber, which with a fire protection insulating compound is at least partially completed.

It is the fire-resistant profile component according to the invention thus an advantageously thermally decoupled single-chamber composite profile.

According to the inventive method for producing the fire-resistant Profile component are initially two essentially U-shaped profile parts, especially made of extruded aluminum, which has an inner shell and a Form the outer tray, at its free leg ends by means of thermal isolating webs to a surrounding a single cavity Composite profile connected and then the hollow chamber with a fire protection insulating compound at least partially filled out.

The profile can be filled by inserting prefabricated molded parts or by pouring a mortar-like mass.

The fire protection insulation can e.g. B. from a matrix of glass fiber reinforced mineral substances exist.

The fire protection protective effect of the profile component according to the invention arises from the interaction of the individual components. In case of fire depending on the location of the fire, the outer or inner aluminum shell of the Composite profile. The melting point of aluminum is 600-650 ° C. At a Fire test according to DIN 4102, this temperature is according to the E-T-K (Standard temperature curve) already reached after approx. 10 minutes, after 30 minutes the temperature in the fire furnace is 822 ° C and after 90 minutes 986 ° C. The Insulating webs made of a mechanically strong material with low thermal conductivity exist, prevent the heat from reaching the aluminum tray the side facing away from the fire. This aluminum carrier shell forms in In the event of a fire, together with the fire insulation material, the statically bearing one Cross-section. It is particularly advantageous here that the frame system consists of one There is a single-chamber profile because the insulating compound has a large hollow chamber stable block together with the aluminum tray on the fire-away Can form side, which then takes over the static load-bearing function.

It is also an advantage here that the fire protection insulating material due to its Composition has an insulating effect, advantageously this insulating compound releases crystalline bound water under heat, whereby the cooled entire profile component according to the invention and thus the fire resistance time is positively influenced.

This is another way of controlling the fire resistance times achieved that the depth of the insulating webs and thus the distance between the Aluminum outer and inner shells is enlarged or reduced.

Another option is to change the depth of the inner or outer shells. In the event of a fire, it is impossible to predict from which side the fire will hit the Profile component meets and the profile component with all anchors, fittings, glass - and panel brackets must ensure the closure of the room, are all these parts each attached to the outer and inner support shell of the aluminum composite profile.

The particular economic advantage of the single-chamber composite profile according to the invention is that the open, U-shaped aluminum interior and External support shells are cheaper to manufacture than hollow aluminum profiles, and that it is possible to use metal corner brackets to create the single-chamber composite profiles like normal thermally insulated aluminum profiles to frames process and the fire protection insulating material subsequently through the large hollow chamber fill in the prefabricated frame.

The particular fire protection advantage of the single-chamber composite profile according to the invention lies in the fact that the large hollow chamber means a lot Fire protection insulating compound can be filled into the single-chamber composite profile which forms a stable insulating block in which the corner angles and Lanyards can be embedded. This is the case with multi-chamber composite profiles not possible.

It is also particularly advantageous if the fire-resistant according to the invention Component is filled with a fire protection insulating compound that Contains magnesium oxychloride cement or entirely of magnesium oxychloride cement consists.

Magnesium oxychloride cement is based on a patent that was granted to K. u. K. Privilege Archives has been registered, and is named after its inventor Sorel cement or also called magnesia cement. Mixtures of magnesium oxide (burnt magnesia) and concentrated magnesium chloride solution stone-like with formation of basic chlorides, the structure of which differs from that of Magnesium hydroxide derived, and were neutralized, for example, with admixture Fillers and paints for the production of artificial stones and seamless floors (cf. DIN 272 - magnesia screeds) as well as artificial ivory (billiard balls) used (see Holleman-Wiberg, Textbook of inorganic chemistry, 81.-90. Edition, pp. 685-686).

Due to the long popularity of Sorel cement, there is an extensive however, controversial literature on some issues. So it is known that magnesium oxychloride cement has heat and sound insulating properties. The Cement has a high bulk density, which among other things has led to aspirations, in the sense a lightweight construction to create pores in it. In addition, the cement depends on its composition is also only partially water resistant, so that despite its fire-retardant properties only limited, i.e. e.g. as a fire retardant Impregnating agent, not as a solid component, has been used. there the high corrosiveness of the material also played a role. For example, there is for magnesia screeds (also called magnesite screeds) the requirement that they are not may come into contact with steel parts of structures. Beams, frames and Pipes must therefore be laid with bitumen paper or a other barrier material.

Since the profile component according to the invention is a composite body, which is also a load-bearing one Function, a high bulk density of the cement has an advantageous effect. If necessary, however, a reduction in density can also be advantageous, in particular non-load-bearing profile components according to the invention can be achieved. The corrosiveness can be counteracted by e.g. a protective coat on the Inner walls of the hollow chamber applied or this is made of aluminum. A possibly less high water resistance than that of conventional The material used only falls due to the existing casing of the mass insignificant in weight.

In the event of a fire, the mass does not come into contact with the fire at first, since it is surrounded by the hollow chamber wall, so that the fire resistance does not take effect immediately - as with components with a coating or impregnation with magnesium oxychloride cement - but only after a possible one Melt the casing. Nevertheless, it has been shown that the fire-resistant profile component according to the invention surprisingly has increased fire resistance. This can be explained by the fact that the following reactions can take place during the production of a magnesium oxychloride cement: 3 MgO + MgCl ₂ + 11 H ₂ O ---> MgCl ₂ * 3 Mg (OH) ₂ * 8 H ₂ O 5 MgO + MgCl ₂ + 13 H ₂ O ---> MgCl ₂ * 5 Mg (OH) ₂ * 8 H ₂ O 5 MgO + MgCl ₂ + 17 H ₂ O ---> MgCl ₂ * 5 Mg (OH) ₂ * 12 H ₂ O.

This shows that the hardened cement contains a large amount of water of crystallization in a matrix of magnesium chloride and magnesium hydroxide is bound so that due to the presence of hydroxides and oxide hydrates by some authors Designation magnesium oxychloride cement is completely rejected, however other authors defend this term. A precise explanation of the structure is difficult to achieve and results in different ways from the Composition or the proportions of the raw materials used for production. In in any case, however, it becomes obvious how - and even more so than - at the beginning known filler made of gypsum and alum with indirect heat (Heat conduction through the wall of the casing) water is released or evaporated, what with an endothermic reaction or with the inclusion of a large amount latent heat and has a cooling effect on the cladding. The high thermal conductivity an aluminum material has a synergistic effect.

With regard to an optimized property profile, it has proven to be particularly advantageous if the magnesium oxychloride cement has a composition with a molar ratio of MgCl ₂ / Mg (OH) ₂ / H ₂ O of 1: (2.5 to 5): (8 to 12 ) having.

The filler of the magnesium oxychloride cement can also be made with the addition of magnesium sulfate, whereby it can consist of a matrix in which Mg (OH) ₂ -, MgCl ₂ -, MgSO ₄ -, Mg _x OCl -, Mg _y OSO ₄ - and Mg _z ClSO ₄ molecules or ions are contained, which can have an advantageous effect on increased water retention and on the water resistance of the cement. (The indices x, y, z can assume integer or non-integer values.) It has proven particularly advantageous here if the magnesium oxychloride-magnesium oxysulfate cement formed by admixing magnesium sulfate has a composition with a molar ratio of MgCl ₂ / MgSO ₄ of 1: (0.02 to 1.9).

Further property improvements of the fire-resistant according to the invention Profile component can also be achieved in that the fire insulation material Water glass, especially soda water glass, and / or silica, especially in Gel form, contains, the latter in a particularly advantageous manner by means of precipitation Metal salt and / or acid from in the filling mass initially (in aqueous solution) contained water glass can be generated.

Further advantageous configurations result from the subclaims.

Figur 1

einen Schnitt durch ein feuerwiderstandsfähiges Profilbauteil mit einer Brandschutz-Festverglasung,

Figur 2

einen Schnitt durch ein feuerwiderstandsfähiges Bauteil zur Bildung einer einflügeligen Türe im Bereich der Tür-Schloß-Seite,

Figur 2a

einen Ausschnitt durch den Türfalzbereich entsprechend der Figur 2,

Figur 3

einen Schnitt durch ein feuerwiderstandsfähiges Bauteil im Bereich des Tür-Mittelstulps einer zweiflügeligen Tür,

Figur 4

einen Schnitt durch ein feuerwiderstandsfähiges Bauteil im Aufbau entsprechend der Figur 2, jedoch als öffenbares Fenster in einer Außenfassade ausgebildet,

Figur 5

einen Schnitt durch eine alternative Glashalterung,

Figur 6

eine Ansicht eines mit den erfindungsgemäßen Profilbauteilen gebildeten Rahmens,

Figur 7

einen Schnitt durch ein feuerwiderstandsfähiges Profilbauteil mit einer Brandschutz-Festverglasung in einer Abwandlung gegenüber dem in Fig. 1 dargestellten Bauteil,

Figur 9

einen Schnitt durch ein feuerwiderstandsfähiges Bauteil zur Bildung einer einflügeligen Türe im Bereich der Tür-Schloß-Seite, in einer Abwandlung gegenüber dem in Fig. 2 dargestellten Bauteil,

Figur 10

einen Schnitt durch ein feuerwiderstandsfähiges (Flügelprofil) zur Veranschaulichung zweier verschiedener Varianten des erfindungsgemäßen Verfahrens.

Embodiments of the invention are shown in the drawings and are described below. Show it:

Figure 1

a section through a fire-resistant profile component with fire protection fixed glazing,

Figure 2

a section through a fire-resistant component to form a single-leaf door in the area of the door lock side,

Figure 2a

a section through the door rebate area according to Figure 2,

Figure 3

a section through a fire-resistant component in the area of the central door cuff of a double-leaf door,

Figure 4

3 shows a section through a fire-resistant component in the construction according to FIG. 2, but designed as an openable window in an outer facade,

Figure 5

a section through an alternative glass holder,

Figure 6

2 shows a view of a frame formed with the profile components according to the invention,

Figure 7

2 shows a section through a fire-resistant profile component with fire-resistant fixed glazing in a modification compared to the component shown in FIG. 1,

Figure 9

3 shows a section through a fire-resistant component to form a single-wing door in the region of the door lock side, in a modification to the component shown in FIG. 2,

Figure 10

a section through a fire resistant (wing profile) to illustrate two different variants of the method according to the invention.

In the different figures of the drawings, the same or functional Corresponding parts always have the same reference symbols so that following a multiple description of the individual versions is largely dispensed with.

In Figure 1 is an example of a cross section through a fixed glazing made of fire-resistant Profile components 1 shown, wherein I the inside and A the Inscribed on the outside. The fixed glazing consists of a frame R (cf. Fig. 6) joined sections of the profile components 1 and fire protection glazing 2. The profile component 1 consists of an essentially U-shaped Inner tray 3 and a substantially U-shaped outer tray 4, which are made, for example, of extruded aluminum. The interior and Outer support shell 3, 4 face each other with their side legs 5 and point towards the inside I or outside A. In the transverse to the window plane X-X extending side legs 5 of the inner and outer support shells 3, 4 are undercut grooves 302, 402 in the area of the free ends 300, 301, 400, 401 of the side legs 5 attached, the thermally separating insulating webs 6 through Take up the curl in a positive and positive manner. The insulating webs 6 have the Characteristic that they are poorly heat-conducting and under the influence of heat melt. The profile component 1 with the inner shell 3 and outer shell 4 and the insulating webs 6 form a single-chamber aluminum composite profile 35, encloses a single hollow chamber H which is covered with a fire protection insulating compound 7 is filled. The fire protection insulation 7 is with the inner shell 3 and External support shell 4 connected positively or positively and non-positively. The Insulating webs 6 and the side legs 5 of the inner and outer support shell 3, 4 can in the depth transverse to the X-X axis are executed at different depths; hereby the fire resistance period can be controlled.

The fire protection insulating material 7 consists of a material that melts when melted a carrying case 3 or 4, the opposite carrying case 3 or 4 before exceeding of the temperatures specified in the standards. This is achieved in that the insulating compound 7 as an insulating block in front of the inner or outer support shell 3 or 4 facing away from the fire and the fire protection insulating material 7 releases crystalline water under the influence of heat, so that entire supporting profile 3 or 4 cooled together with the fire protection insulating compound 7 becomes. A metallic wire mesh can also be used to improve the load-bearing capacity 8 are inserted into the fire protection insulating compound 7 as a moning.

The glazing 2 formed from fire protection glass is held for the Normal case (not the case of fire) in a known manner in that the formed Profile component 1 has an approximately L-shaped cross section with a glass abutment 9 in parallel to the X-X axis, in which a groove 405 for receiving the outer Glass seal 10 is molded. On the inside I of the profile component 1 Fire protection glass 2 held by a glass strip 11, which is in a groove in a Side leg 5 of the inner support shell 3 is provided, inserted and through an inner glass seal 12 is fixed. The holder of the fire protection glass 2 in the event of a fire, however, is carried out by metallic molded parts 13, which are preferably in the form of pieces made of stainless steel. Since you cannot determine in advance, whether the fire hits the inner or outer support shell 3 or 4 must be metallic molded part 13 on the inner support shell 3 and the outer support shell 4, respectively are attached by means of screws (the screws are not shown here). The metallic moldings 13 can have a width of 2 to 5 cm. The distance the molded parts can be between 20 and 100 cm. The higher the fire resistance duration the smaller the distance becomes. The thickness of the molded part 13 is between 0.5 and 2 mm.

The passage of hot fire gases between the face of the fire protection glass 2 and the inner shell 3 and the outer shell 4 to prevent a gasket 14 foaming under the influence of heat is placed in the glass rebate inserted.

The above-described basic structural features of an inventive fire-retardant or fire-resistant profile component 1 for training of frames are all according to the invention shown in Figures 1 to 6 Profile components together, the same parts with the same reference numerals are. Here, however, have the individual profile components according to the invention of Figures 1 to 5 due to their other functions as fixed glazing frame profile, Door frame profile, door sash profile, window frame profile, Window sash profile or due to special requirements in Gap area between the door frame profile and the door sash profile or between two door sash profiles as well as window frame profile and window sash profile special designs.

In Figure 2, a frame 15 is together with a sash 16 on the Lock side of a single-leaf door shown, between which a revolving Folding chamber F is formed. The door lock 17 in the casement 16 is with a Connecting strap 18 by means of screws on the inner and outer support shell 3, 4 attached. Likewise, the striking plate 19 on the frame 15 with a connecting strap 18 attached to the inner and outer support shell 3, 4. The anchor part 20 is on the frame 15 each by means of screws on the inside and External support shell 3, 4 attached.

Basically, according to the invention, all fitting parts that are used for locking the door are required, as well as all fastening and anchor parts always on the Inner and outer trays 3 and 4 attached to regardless of the fire side the closure and the statically perfect fastening of the profile component which the frame 15 and sash 16 is made to ensure.

In Figure 2a, the fold area between the sash 16 and the Frame 15 shown with the folding chamber F. The cut does not run here through the lock area of the door, but above or below the door lock 17. In the side legs 5 of the inner and outer trays 3 and 4 of the Frame 15 and the sash 16 are grooves 303, 304, 403, 404 molded, which advantageously a foaming under the influence of heat Take up seal 14 to prevent the passage of hot fire gases. In addition, on the frame 15 on the inner shell 3 and on Sash frame 16 on the outer support shell 4 each parallel to the X-X axis Stop leg 21 formed. The stop leg 21 has a molded one Groove 21a for receiving a stop seal 22, which is responsible for the windproofness of the Door cares.

In Figure 3 is the area of a middle cuff of a two-leaf door with two juxtaposed posts of casement frames 16 and 23 are shown. The sash 16 with the door lock 17 corresponds to the embodiment of Figure 2, the Post of the sash or sash 23 contains in the fire insulation 7 in the middle is an existing one made of plastic or metal Guide tube 24 for receiving a locking bar 25. The locking bar 25 serves in Connection to the driving bolt lock 26 for locking the casement 23. Advantageously, the guide tube 24 is centered in the fire protection insulating compound 7 and thus roughly in the neutral bending zone, so that if the Casement 23, which arises in the event of fire, the fire protection insulation 7 not is additionally loaded with tensions which cause the block to burst out of the Fire protection insulation 7 can lead. Analogously, the guide tube 24 with the locking bar 25 also in the casement 16 for additional locking, e.g. a door active leaf can be used.

FIG. 4 shows a framework which corresponds in structure to FIG. 2. However, the profile formation is advantageously designed so that the framework as an openable window of fire protection class F30, F60 and F90 in one External facade can be used. Because of window constructions outdoors high demands are made on wind and rainproofness the profile design advantageously designed so that the rebate space between the window frame 27 and the window casement 28 in the area of respective outer support shell 4 is enlarged, so that in a receiving groove 29a Side leg of the outer shell 4 of the window frame 27 a center bar seal 29 can be pinched, the upper lip of one Stop edge of the outer support shell 4 of the window casement 28 abuts and thus ensuring wind and rain tightness. When water enters the drainage chamber 31 the water through the drain hole 32 again directed outside. The drainage hole 32 is in a known manner with a Rain cap 30 covered. The fitting installation, the glass bracket and the anchorages are carried out as described in Figure 2.

An alternative holder for the fire protection glass 2 is shown in FIG. Here the glass edge of the fire protection glass 2 after the outer shell has melted 4 or the inner glass strip 11 again by a continuous metal retaining strip 33 protected. The metallic retaining strip shows a U-shaped cross-sectional design with two side legs 33a and one these connecting base legs 33b. The side legs 33a are with a continuous hollow chamber formed, for. B. made of appropriate steel pipes. The side legs 33a are attached by means of screws (not shown here) attached to the bottom leg 33b. The bottom leg 33b is about 2 to 5 cm wide and is attached at a distance of about 20 to 100 cm. The thickness of the bottom leg 33b is approximately 2 to 5 mm. The distance and number of floor legs 33b depend on the fire resistance duration. The bottom legs 33b are each by screws on the side legs 5 of the aluminum interior and External trays 3, 4 attached. According to the invention, this glass holder achieved that regardless of the direction of fire, the additional glass bracket is always attached to a support shell 3 or 4 facing away from the fire.

FIG. 6 schematically shows the production of a frame R, as it is, for example for the formation of those used in the figures explained above Frame and / or casement for the formation of windows, doors, wall elements, Facades and the like can be used shown. To For this purpose, profile components with the structure explained above are made essentially U-shaped extruded aluminum sections, each form an inner support shell 3 and an outer support shell 4 and at their free Leg ends by means of thermally separating insulating webs 6 into a single one Hollow chamber H surrounding composite profile 35 prefabricated and into individual frame sections, that are identified in FIG. 6 by reference numbers R1, R2, R3 and R4 are cut to length. Then they are mitered, if necessary Cut frame sections R1 to R4 to those shown in Figure 6 Frame R put together, if necessary in the corner areas between the individual sections R1 to R4 corner connectors in known per se Embodiments can be used. Now at least one, but advantageously two with the reference numerals B, E in the frame section R4 vicariously marked, hole (s) in the thus formed Frame R introduced into the hollow chamber surrounded by the composite profile 35 H, see Figure 1, rich (t) / (en). Now it is possible to use a liquid or plastic one Fire protection insulation 7 according to arrow P1 through hole B into the hollow chamber H fill in, the air contained in the hollow chamber H via the second Hole E can escape according to arrow P2. When the cavity H is complete is filled with the fire protection insulating material 7, the holes B, E by means suitable closure elements are closed and the fire protection insulating compound 7 hardens within the frame R. Alternatively, as already mentioned, it is possible that the fire protection insulation 7, at least partially, as one or more of the whole or a partial cross section of the hollow chamber H shaped part (s) is introduced, which is illustrated in the drawing by reference numeral 36 is.

In the event that the frame consists of the frame sections R1 to R4 in the manner is composed that the in the respective frame sections R1 to R4 surrounded by the composite profile 35 hollow chamber and continuing through the entire frame R is guided, a single insertion of a hole is sufficient B or from two holes B, E in the frame R to the entire circumferential To be able to fill hollow chamber H with fire protection insulating compound 7.

If, however, which is preferred for reasons of stability, corner connectors in the Transitional areas between adjacent frame sections R1, R2, R3, R4 are used, one for each frame section R1 to R4 Bore B for filling the fire protection insulating compound 7 and one bore E each introduced to escape the contained air and thus each frame section R1 to R4 of the frame R are filled separately with the fire protection insulating compound 7.

A major advantage of the method described above is that cutting the profile sections to length before filling them with the fire protection insulating compound 7 takes place. Since in this case only aluminum (the outer and inner support shell 3, 4) and plastic (the insulating webs 6) must be cut, this can be done conventional sawing devices without much effort and wear carry out. A filling with already completed at this time Fire protection insulation 7, however, due to the additional to be cut Fire protection insulating material 7 very high saw wear, the invention is avoided.

Figure 7 corresponds essentially to Figure 1. Here, however, before filling the Profiles with fire protection insulation 7 in the aluminum trays 3, 4 at least a molded part (not shown) inserted after filling and curing the fire protection insulating material 7 pulled out of the profile component 1 again can be, so that in the single hollow chamber H at least one (in Case two shown) partial chamber (s) not filled with fire protection insulating compound 7 37 remain. This method has the advantage that the profiles on the rod can be filled and the unfilled subchambers 37 for connecting the Profiles with a corner bracket (corner connector) can be used.

Figure 8 corresponds essentially to Figure 2. Here is also the only one Hollow chamber H at least one (again two in the case shown) partial chamber (s) 37 filled with fire protection insulating compound 7 are provided. additionally is in the middle of the profile component 1, e.g. thermal insulation made of mineral wool 38 used. This insulation 38 fulfills the purpose that at Use of the profile components 1 in an outdoor area in addition to fire resistance a good heat-insulating effect of the profile component can also be achieved. Optionally, the fire protection insulation 7 - as shown - with a Reinforcement 39 are reinforced. Thermal insulation 38 and / or reinforcement 39 can of course also be filled in regardless of the presence Subchambers 37 are provided. They also come with this version aforementioned manufacturing advantages to bear.

Figure 9 illustrates two other ways to accomplish that in the single hollow chamber H partial chamber (s) not filled with fire protection insulating compound 7 37 remain. In the upper part of Figure 9 there is an adhesive tape 40 in the Profile component 1 glued. The adhesive tape 40 closes the filled part of the Hollow chamber H against the unfilled partial chamber 37. Gluing the Adhesive tape 40 is before connecting the inner tray 3 and the Outer support shell 4 through the insulating webs 6 and before filling the profile component 1 made with fire protection insulating compound 7. The adhesive tape 40 prevents one Filling of sub-chamber 37 with fire protection insulating compound 7. After filling the adhesive tape 40 remains in the profile. The adhesive tape 40 is preferably two protruding into the hollow chamber H, facing each other at a distance L. Legs 41, 42 of the inner support shell 3 are glued and bridge the distance L. between the legs 41, 42. In particular, the adhesive tape 40 is in each case in contact Side walls of the legs 41, 42, which with the 7 fire insulation filled or initially to be filled part of the hollow chamber H are facing. This can cause it under the pressure of the fire protection insulating material 7 Do not loosen the filling, but press it even more firmly. An adhesive tape 40 could can of course also be provided analogously on the outer support shell 4.

In the lower part of FIG. 9 there are two opposite L at a distance Legs 43, 44 of the outer support shell 4 are a molded plastic body 45 pushed. The molded plastic body 45 closes the filled part of the hollow chamber H against the unfilled partial chamber 37. Sliding on the molded plastic body 45 is before or after connecting the inner support shell 3 and External tray 4 through the insulating webs 6, but in any case before filling the Profile component 1 made with fire protection insulating material 7, whereby the distance L is bridged between the legs 43, 44. The plastic molded body 45 prevents the partial chamber 37 from being filled with fire protection insulating compound 7. After after filling, it remains in the profile. So that the plastic molded body 45 under the pressure of the fire protection insulating material 7 can not solve when filling, it includes form-fitting the free ends of the legs 43, 44. For this is on the two A groove 406 is provided on each of the long sides of the shaped body 45. A plastic molded body 45 could of course also analogously on the inner tray 3 be provided.

As already explained, it can be preferred for the fire protection insulating compound 7 all or part of a magnesium oxychloride cement, if necessary also contains magnesium sulfate. This feature as well as those given above Compositions that differ from the stoichiometry of the setting derived reactions, is - as already mentioned - also inventive Attached importance.

To achieve the desired properties, it is necessary that the specified minimum amount of magnesium chloride in the MgCl ₂ / Mg (OH) ₂ / H ₂ O ratios of 1: (2.5 to 5): (8 to 12) and MgCl ₂ / MgSO ₄ of 1: (0.02 to 1.9) is not undershot because, on the contrary, there may be a significant drop in fire resistance compared to the maximum achievable value according to the invention.

In the case of the production of magnesium oxychloride-magnesium oxysulfate cement, however, part of the magnesium chloride used to manufacture the fire protection insulating material 7 can be replaced by a metal chloride, such as calcium chloride, the cation of which forms poorly soluble sulfates. A sedimentation reaction according to the equation takes place during the production of the insulating compound 7 CaCl ₂ + MgSO ₄ ---> MgCl ₂ + CaSO ₄ ↓ from, in which the magnesium chloride is formed in the manufacturing process itself from the other metal chloride. The precipitated, poorly soluble metal sulfate, in the illustrated case gypsum, can act as a filler in the hardened insulating compound 7, but can also contribute to a further improvement in properties.

If the fire protection insulating material 7 contains water glass, in particular sodium water glass, this results in greater strength and water resistance and in an increased fire resistance of the material. In particular, it has proven to be advantageous if the sodium water glass has a composition with an average molar Na ₂ O / SiO ₂ ratio of 1: (1.5 to 4.0) and if the sodium water glass is initially liquid in the insulating compound 7 is introduced, it should have a density of about 1.32 to 1.55 g / cm ³ . The amount of water glass introduced into the insulating compound 7 should be selected such that the magnesium oxychloride cement or magnesium oxychloride-magnesium oxysulfate cement has a composition with an average molar ratio of MgCl ₂ to sodium water glass of approximately 1: (0.02 to 0.35) having.

It has also already been stated that it is advantageous if the insulating compound 7 contains silica contains. This can e.g. can be added as an amorphous powder. The The presence of silica in the insulating compound 7 brings about similar improvements in properties like that of water glass, but it increases its effectiveness.

As is known, silica is a collective name for compounds that Silicon dioxide and different proportions of water can contain. So a distinction is made between orthosilicic acid, different types of polysilicic acids and Metasilicic acids and finally the so-called phyllodic silica, whereby the mentioned silicas by an increasing in the order given Characterize degree of condensation and decreasing water content and in the final stage the condensation occurring to form chain molecules is almost anhydrous Silicon dioxide is created.

Silicic acid can be precipitated by means of metal salt and / or acid from water glass are generated, with a low degree of condensation they are initially used as (liquid) Hydrosol is present and at an appropriate temperature (starting at Room temperature or a little above) and at an appropriate pH value (greater or less than about 3.1-3.3) an envelope of the colloidally disperse silica particles uses, which can lead to gel formation. In one (solidified) gel, the silica is higher in a network and / or honeycomb structure specific surface and porosity arranged in the water. The circumstance of the sol-gel reaction can be used according to the invention by the silica through Precipitation using metal salt and / or acid from the insulating compound 7 initially contained water glass is generated. This advantageously results on the one hand an increase in strength and fire resistance, and on the other hand, the Shrinkage amount of the curing insulating compound 7 is reduced.

The fire protection insulation 7 is - as stated - in the flowable state in the Hollow chamber H introduced. Preference is given to the production of a magnesium oxychloride cement a fire protection insulation 7 used, which from a Mixture of magnesium oxide (reactively fired magnesia) and concentrated, in particular saturated or supersaturated, aqueous magnesium chloride solution is produced and also produced with the addition of magnesium sulfate can be. In the latter case, the addition of a metal chloride, such as Calcium chloride, the cation of which forms poorly soluble sulfates, such as calcium sulfate.

The insulating compound 7 can also with the addition of water glass, in particular Sodium water glass in liquid solution, preferably two Partial mixtures, one of the starting materials mentioned for the magnesium oxychloride cement and another from the water glass, if necessary mixed with magnesium sulfate, to be stirred into a highly viscous suspension.

The insulating compound 7 can also contain silica, which is preferably produced in the manufacturing process of the insulating compound 7 by precipitation from water glass using acid or salt. Mineral and / or organic acids can be used to set a suitable pH. An insulating compound 7, which is made from a mixture of 35 ± 25 percent by weight MgCl ₂ , 13 ± 12 percent by weight MgSO ₄ , 35 ± 25 percent by weight MgO and 5.1 ± 5.0 percent by weight water glass, has proven particularly useful, with the proportion of aqueous water glass solution may optionally contain the acid used for the reaction with the water glass.

With the invention, as already mentioned above, a fire resistance class of up to F120 can be achieved. The invention is limited not to the various illustrated embodiments, but also includes all equivalent designs. For example, the person skilled in the art can additional others provide advantageous measures, such as the admixture of fillers or pigments for fire protection insulation 7, in particular zinc oxide, Titanium oxide and aluminum oxide are particularly suitable. Also an embedding reinforcing parts or materials, such as glass fibers or a fabric made of plastic, wire, glass fibers or the like, into the fire protection insulating compound 7 can be provided as a measure that reinforces the advantages of the invention.

Claims (51)

1. Fire-resistant profile component for producing windows, doors, wall elements, facades and the like, comprising two essentially U-shaped profile parts, in particular made of extruded aluminium, which form an inner supporting shell (3) and an outer supporting shell (4) and are connected at free leg ends (300, 301 and 400, 401, respectively) of their legs (5) by means of thermally separating insulating bars (6) to form a composite profile (35) surrounding a hollow chamber (H), the composite profile (35) being formed between the inner supporting shell (3) and the outer supporting shell (4) as a single-chamber profile, in which the hollow chamber (H) is the single chamber, which is completely or partially filled with the fireproof insulating material (7).
2. Fire-resistant profile component according to Claim 1, characterized in that the free leg ends (300, 301, 400, 401) of the inner supporting shell (3) and the outer supporting shell (4) have in each case an undercut groove (302, 402), into which the insulating bars (6) can be inserted with positive engagement, forming a statically load-bearing composite profile (35).
3. Fire-resistant profile component according to Claim 1 or 2, characterized in that, when the inner supporting shell (3) or the outer supporting shell (4) begins to melt, a statically load-bearing profile can be formed by means of the remaining inner or outer supporting shell (3, 4) and the fireproof insulating material (7).
4. Fire-resistant profile component according to one of Claims 1 to 3, characterized in that the fireproof insulating material (7) is positively and/or nonpositively connected to the composite profile (35).
5. Fire-resistant profile component according to one of Claims 1 to 4, characterized in that the fireproof insulating material (7) is mineral-based.
6. Fire-resistant profile component according to one of Claims 1 to 5, characterized in that the fireproof insulating material (7) contains crystalline-bound water, which can be released under the effect of heat.
7. Fire-resistant profile component according to one of Claims 1 to 6, characterized in that the fireproof insulating material (7) is reinforced with a metal wire mesh (8).
8. Fire-resistant profile component with a fireproof insulating material (7) with which a hollow chamber (H) can be filled, in particular according to one of Claims 1 to 7, characterized in that the fireproof insulating material (7) contains magnesium oxychloride cement or consists entirely of magnesium oxychloride cement.
9. Fire-resistant profile component according to Claim 8, characterized in that the magnesium oxychloride cement has a composition with a molar ratio of MgCl₂/Mg(OH)₂/H₂O of 1 : (2.5 to 5) : (8 to 12).
10. Fire-resistant profile component according to Claim 8 or 9, characterized in that the fireproof insulating material (7) contains magnesium sulphate, whereby a magnesium oxychloride/magnesium oxysulphate cement is formed.
11. Fire-resistant profile component according to Claim 10, characterized in that the magnesium oxychloride/magnesium oxysulphate cement has a composition with a molar ratio of MgCl₂/MgSO₄ of 1: (0.02 to 1.9).
12. Fire-resistant profile component according to one of Claims 1 to 11, characterized in that the fireproof insulating material (7) contains water glass, in particular soda water glass.
13. Fire-resistant profile component according to Claim 12, characterized in that the soda water glass has a composition with an average molar ratio of Na₂O/SiO₂ of 1 : (1.5 to 4.0).
14. Fire-resistant profile component according to Claim 8 and either of Claims 12 and 13, characterized in that the magnesium oxychloride cement or magnesium oxychloride/magnesium oxysulphate cement has a composition with an average molar ratio of MgCl₂ to soda water glass of 1 : (0.02 to 0.35).
15. Fire-resistant profile component according to one of Claims 1 to 14, characterized in that the fireproof insulating material (7) contains silica, in particular in gel form.
16. Fire-resistant profile component according to one of Claims 1 to 15, characterized in that at least one moulded part (36) prefabricated from the fireproof insulating material (7), with a cross section corresponding to the entire cross section or a part-cross section of the hollow chamber (H), is arranged in the hollow chamber (H).
17. Fire-resistant profile component according to one of Claims 1 to 16, characterized in that a curable fireproof insulating material (7) with which the hollow chamber (H) can be filled is provided.
18. Fire-resistant profile component according to one of Claims 1 to 17, characterized in that the hollow chamber (H) is completely filled with the fireproof insulating material (7).
19. Fire-resistant profile component according to one of Claims 1 to 17, characterized in that the hollow chamber (H) comprises part-chambers (37) that are not filled with fireproof insulating material (7).
20. Fire-resistant profile component according to Claim 19, characterized in that a part of the hollow chamber (H) that is filled with fireproof insulating material (7) is closed off from a part-chamber (37) that is not filled with fireproof insulating material (7) by an adhesive strip (40).
21. Fire-resistant profile component according to Claim 20, characterized in that the adhesive strip (40) is adhesively attached to two legs (41, 42, 43, 44) of the inner and/or outer supporting shell (3, 4) which protrude into the hollow chamber (H) and lie opposite each other at a distance (L), and bridges the distance (L) between the legs (41, 42, 43, 44), the adhesive strip (40) in particular resting respectively against side walls of the legs (41, 42, 43, 44) which are facing the part of the hollow chamber (H) that is filled with the fireproof insulating material (7).
22. Fire-resistant profile component according to one of Claims 19 to 21, characterized in that a part of the hollow chamber (H) that is filled with fireproof insulating material (7) is closed off from a part-chamber (37) that is not filled with fireproof insulating material (7) by a moulded plastic body (45).
23. Fire-resistant profile component according to Claim 22, characterized in that the moulded plastic body (45) is pushed onto two legs (41, 42, 43, 44) of the inner and/or outer supporting shell (3, 4) which protrude into the hollow chamber (H) and lie opposite each other at a distance (L), and bridges the distance (L) between the legs (41, 42, 43, 44), the moulded plastic part (45) in particular embracing the free ends of the legs (41, 42, 43, 44), which lie in a groove (406) of the moulded plastic part (45).
24. Fire-resistant profile component according to one of Claims 1 to 23, characterized in that the outer supporting shell (4) has on its outer side facing away from the hollow chamber (H) a groove (405) for receiving a seal (10) for glazing (2).
25. Fire-resistant profile component according to one of Claims 1 to 24, characterized in that the inner supporting shell (3) and/or the outer supporting shell (4) have grooves (303, 304, 403, 404) for receiving seals (14) which expand under the effect of heat.
26. Fire-resistant profile component according to one of Claims 1 to 25, characterized in that a glazing bar (11) can be attached to the outer side, facing away from the hollow chamber (H), of the inner supporting shell (3) and/or the outer supporting shell (4).
27. Fire-resistant profile component according to one of Claims 1 to 26, characterized in that the inner supporting shell (3) and/or the outer supporting shell (4) have on their outer side, facing away from the hollow chamber (H), a projecting stop leg (21) with a groove formed in it, into which a stop seal (22) can be inserted.
28. Window or door, comprising at least one frame (R) made up of sections of the fire-resistant profile component according to one of Claims 1 to 27 and glazing (2) of a fireproof glass held within the frame (R).
29. Window or door according to Claim 28, characterized in that the glazing (2) is provided in its edge region with U-shaped metallic moulded parts (13), fitted onto the glazing (2), and the moulded parts (13) are screwed to the inner supporting shell (3) and the outer supporting shell (4) of the profile components in the region of the side legs (5).
30. Window or door according to Claim 28 or 29, characterized in that a seal (14) which expands under the effect of heat is arranged between the glazing (2) and the frame (R).
31. Window or door according to one of Claims 28 to 30, characterized in that a U-shaped metallic holding bar (33) with side legs (33a) and a bottom leg (33b) connecting the latter is provided between the glazing (2) and the frame (R), engages around the edges of the glazing (2) and holds it, the side legs (33a) being made hollow and the bottom leg (33b) being screwed to the inner supporting shell (3) and the outer supporting shell (4) of the frame (R) in the region of the side legs (5).
32. Window or door according to one of Claims 28 to 31, characterized in that the frame (R) holding the glazing (2) is movably held as a sash or leaf frame (16) on a casing (15) made up of sections of the profile components while forming a peripheral rebate chamber (F), and a lock (17) is fastened on the side of the sash or leaf frame (16) that is facing the rebate chamber (F) and a striking plate (19), which can be brought into engagement with the lock, is fastened on the side of the casing (15) that is facing the rebate chamber (F), in each case with a backplate (18) interposed, and the backplates (18) are fastened by means of screws to the legs (5) of the outer supporting shell (4) and the inner supporting shell (3) of the casing (15) and sash or leaf frame (16), respectively.
33. Window or door according to Claim 32, characterized in that an anchor part (20) is fitted on the casing (15), on the side facing away from the rebate chamber (F), and is fastened by means of screws to the side legs (5) of the inner supporting shell (3) and the outer supporting shell (4) of the casing (15).
34. Window or door according to Claim 32 or 33, characterized in that a guiding tube (24) for receiving a locking bar (25) is arranged in the fireproof insulating material (7) in a post (23) of the casing (15).
35. Window or door according to one of Claims 32 to 34, characterized in that a receiving groove (29a), into which a centre-bar seal (29) protruding into the rebate chamber (F) can be inserted, is formed on the side of the casing (15) that is facing the rebate chamber (F) in the region of the side leg (5) of the outer supporting shell (4), and a stop edge (29b) for the centre-bar seal (29) is formed in the region of the sash or leaf frame (16) lying opposite the receiving groove (29a) and facing the rebate chamber (F), on the side leg (5) of the outer supporting shell (4) of the same.
36. Method for producing a fire-resistant profile component (1) for the production of windows, doors, wall elements, facades and the like, in particular a profile component (1) according to one of Claims 1 to 35, wherein firstly two essentially U-shaped profile parts, in particular made of extruded aluminium, which form an inner supporting shell (3) and an outer supporting shell (4), are connected at their free leg ends (300, 301 and 400, 401, respectively) of the legs (5) of the U profile by means of thermally separating insulating bars (6) to form a composite profile (35) surrounding a single hollow chamber (H), the composite profile (35) being formed between the inner supporting shell (3) and the outer supporting shell (4) as a single-chamber profile, in which the hollow chamber (H) is the single chamber, and after that the hollow chamber (H) is at least partially filled with a fireproof insulating material (7).
37. Method according to Claim 36, characterized in that the insulating bars (6) are rolled into grooves (302, 402) located at the free leg ends (300, 301 and 400, 401, respectively) of the inner and outer supporting shells (3, 4).
38. Method according to Claim 36 or 37, characterized in that a curing fireproof insulating material (7) with which the hollow chamber (H) can be filled is used as the fireproof insulating material (7).
39. Method according to one of Claims 36 to 38, characterized in that the fireproof insulating material (7) is produced from a mixture of magnesium oxide (calcined magnesia) and concentrated, in particular saturated or supersaturated, aqueous magnesium chloride solution.
40. Method according to Claim 39, characterized in that the fireproof insulating material (7) is prepared with the addition of magnesium sulphate.
41. Method according to Claim 39 or 40, characterized in that the fireproof insulating material (7) is prepared with the addition of water glass, in particular soda water glass, which is introduced into the fireproof insulating material (7) in liquid form, having in particular a density of from 1.32 to 1.55 g/cm³.
42. Method according to Claim 40 or 41, characterized in that the fireproof insulating material (7) is prepared with the addition of a metal chloride, such as calcium chloride, the cation of which forms scarcely soluble sulphates, such as calcium sulphate, in the fireproof insulating material (7).
43. Method according to one of Claims 39 to 42, characterized in that a fireproof insulating material (7) which contains silica is used.
44. Method according to Claim 43, characterized in that the silica is produced by precipitation by means of metal salt and/or acid from water glass initially contained in the fireproof insulating material (7).
45. Method according to one of Claims 36 to 44, characterized in that the fireproof insulating material (7) is prepared from a mixture of 35 ± 25 per cent by weight of MgCl₂, 13 ± 12 per cent by weight of MgSO₄, 35 ± 25 per cent by weight of MgO and 5.1 ± 5.0 per cent by weight of an aqueous solution of soda water glass, it being possible for this solution to contain a mineral and/or organic acid.
46. Method according to either of Claims 38 and 45, characterized in that, to produce at least one part-chamber (37) that is not filled with fireproof insulating material (7), before connecting the inner supporting shell (3) and the outer supporting shell (4) and before filling the hollow chamber (H) with fireproof insulating material (7), the part-chamber (37) that is not to be filled is closed by means of an adhesive strip (40), the adhesive strip (40) remaining in the hollow chamber (H) after the fireproof insulating material (7) has cured.
47. Method according to Claim 46, characterized in that the adhesive strip (40) is adhesively attached to two legs (41, 42, 43, 44) of the inner and/or outer supporting shell (3, 4) which protrude into the hollow chamber (H) and lie opposite each other at a distance (L).
48. Method according to one of Claims 38 to 47, characterized in that, to produce at least one part-chamber (37) that is not filled with fireproof insulating material (7), before filling the hollow chamber (H) with fireproof insulating material (7), the part-chamber (37) that is not to be filled is closed by means of a moulded plastic body (45), the moulded plastic body (45) remaining in the hollow chamber (H) after the fireproof insulating material (7) has cured.
49. Method according to Claim 48, characterized in that the moulded plastic body (45) is pushed onto two legs (41, 42, 43, 44) of the inner and/or outer supporting shell (3, 4) which protrude into the hollow chamber (H) and lie opposite each other at a distance (L), the moulded plastic part (45) in particular embracing the tree ends of the legs (41, 42, 43, 44) with positive engagement.
50. Method according to one of Claims 38 to 49, characterized in that, to produce at least one part-chamber (37) that is not filled with fireproof insulating material (7) in the hollow chamber (H), before filling the hollow chamber (H) with fireproof insulating material (7), at least one moulded part is placed in the hollow chamber (H), which part is pulled out of the profile component (1) again after the fireproof insulating material (7) has been used for filling and has cured.
51. Method according to one of Claims 38 to 49, in particular for producing frames (R) for windows or doors according to Claims 28 to 35, characterized in that the composite profile (35) formed by the inner supporting shell (3), the outer supporting shell (4) and insulating bars (6) is cut to length in sections (R1, R2, R3, R4) and connected in the corner regions to form a frame (R), subsequently at least one bore (B) , leading into the hollow chamber (H) surrounded by the composite profile (35), is made in the frame (R), then the curing fireproof insulating material (7) is introduced into the hollow chamber (H) via the bore (B) and subsequently the bore (B) is closed again.

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