WO1993001388A1 - Process for producing fireproofing, composite profile sections - Google Patents

Abstract

A process for producing composite profile sections used in the manufacture of fire doors and partitions consists of applying two outer profile sections (2) on a preferably extruded middle profile (1). This process allows the connecting elements and fittings generally used for the manufacture of doors and windows to be used. The connecting parts (4, 4a, 4d, 4e, 4f, 4g, 4h, 4i, 4l, 4m) between the profile sections (1, 2) fullfil the connecting function, the function of interrupting thermal bridges and if necessary the function of retaining the heat-insulating and refractory filling material (7) injected under the form of a paste. In addition, said connecting parts confer the required dimensional stability to the profile section, during injection of the filling material as well as during its curing.

Description

 DESCRIPTION

MANUFACTURING METHOD FOR FIRE PROTECTION COMPOSITE PROFILES

Fire protection composite profiles are known which are composed of two light steel profiles, the free flanges of which are in grooves on one

 heat-resistant material manufactured core, which fills the interior between the two profiles, intervene (W. Hartmann & Co., 2000 Hamburg); These cores are cut from heat-resistant plates and milled so that they can be inserted lengthways or crosswise in the metal profiles, although various problems, be it in the preparation of the core, as well as in the composition of the parts, due to the fragility and limited Bending strength of the core to be solved. Further disadvantages arise in the processing of these composite profiles, in the composition into frames and in the assembly of these frames because, between the parts of these composite profiles, no anchoring is provided over the entire length and possibly

broken core pieces are in no way held by the profiles.

The well-known composite profiles manufactured by FORSTER, CH-9320 Arbon, which are available under the

Name "Fuego" are known, consist of two outer steel tube profiles, which are attached via continuous cross bolts to a central core, which is made of a heat-resistant plate.

 The above-mentioned transverse bolts form a series of thermal bridges between the two in these composite profiles

Metal profiles and do not prevent insulation material from crumbling off during the subsequent processing of the profiles.

 A limited fireproof composite profile is manufactured by the company Jansen AG, CH-9463 Oberriet and offered under the name "System 55". "These are steel profiles which are made of aluminum profiles without

Interruption of thermal bridges and without an intermediate layer an insulation layer are covered. The company HUECK GmbH, A-1232 Vienna produces a composite profile with strips on a central profile

 Insulation material is attached which are cut from panels and enclosed by two profiles. This composite profile is with a

 Provided hollow chamber for the installation of the lock, but has several thermal bridges, requires an elaborate and complicated profile production and one

 laborious assembly of the frame.

 The majority of these known composite profiles have the disadvantage that no hollow channel for the installation of the fittings and locks, for example for one

 Rod lock, is provided and so on

 Milling and reworking are necessary. Furthermore, corner connections for the manufacture of frames are not possible in the conventional manner by introducing corner angles; welded connections must be carried out at visible points on the profiles, the installation of typical window fittings, which is often carried out

 Fire doors are required is not provided. The known composite profiles (Hueck) which are hollow chambers for the purpose of installing locks, but provide a complex structure with complex manufacture and

 Further processing or / and have a number of thermal bridges, all can not as a composite profile in the form of a compact rod from previously assembled

 Profile parts are manufactured. Another disadvantage of these known composite profiles is that they have inner cores, which are made of plates, panels or the like and which, because of

Properties of the materials used, be it during production or when assembling the

Composite profile parts as well as frequent breaks on the finished composite profiles

Result in inner core.

 Furthermore, fire protection composite profiles from the

Description known which part of the application order

Grant of patent with registration certificate N. 4823 / A88 (IT), from the same applicant; for this Composite profiles are already described injecting a mass that fills the cavities between two profiles and subsequently by curing

 forms the heat-resistant insulating core of the composite profile. The manufacturing process of this type of composite profile has the disadvantage that, during the injection of the core mass, the profile parts have to be clamped in a device which ensures the exact position of the profile parts and the dimensional stability until the mass has hardened: after the hardening, the composite profile can only

 carefully removed from the device and placed so that tensions between the

 Composite profile parts can be avoided and the complete curing can take place without defects. These long

 Idle times during the production process, the lack of a convenient way of installing locks,

 Fittings and corner brackets for the production of frames have led to this manufacturing system

 to develop further by the composition of the.

 Composite profile parts was rethought.

 The invention sets itself the task

perfected and less time consuming

 To create manufacturing processes for fire protection composite profiles, the composite profiles like conventional

Aluminum window profiles can be assembled into frames and fittings, in particular window fittings and locks, can be easily installed;

at the same time, the insulation values, the aesthetics at the frame corners, while maintaining the solutions known in the area of metal doors and windows, are to be improved in such a way that the processing and assembly of these

Composite profiles is significantly simplified.

This problem is solved in that the

Composite profile according to the invention from a central profile, preferably extruded in aluminum, from two outer profiles, preferably made of steel, stainless

Steel or extruded aluminum; out

Connecting elements between the central profile and the two outer profiles; of a core, the cavity between the respective outer profiles and a wall of the fills the central profile and consists of an anchoring part, which can be molded or attached to the central profile.

 The central profile has a central cavity for the introduction of connecting fittings, e.g.

 Corner connection angle, or for the installation of locks and two, laterally arranged to the first cavity. Cavities for the installation of bar locks; these cavities can be made accessible from the outside by separating the corresponding wall provided with predetermined breaking points in the longitudinal direction in order to be able to mount, in a known manner, accessories and fittings customary for door and window construction. On the walls of the central profile, which face the outer profiles, grooves or flanges are provided for sliding in the longitudinal direction or lateral attachment of plastic profiles, which create the connection to the outer profiles with their free flanges in the specially

 intervene longing grooves; flanges can also be provided for the attachment or insertion of anchoring elements that are spaced apart and distributed over the entire length of the profile. This

 Anchoring elements can also be provided above in one piece from the profile against the insulating core. According to a further development of the inventive concept, in place of the connecting elements in, on the free

 Flanges provided the outer profiles, slots

 Anchoring elements are snapped on (Fig. 6), pressed in (Fig. 3, 6) or positively (Fig. 5) attached to the central profile; with these

 Connection types are in one piece with the central profile or from the outer profiles

protruding retaining walls for the insulating compound

provided, which are provided with a side support flange.

 The outer profiles can have different cross sections and determine the overall outer shape of the

Composite profiles in T, L or Z shape, the free flanges of the outer profiles, which are used for connection to the

middle profile can be used against the Inner core or be directed outwards, in the case of the use of the snap-on connecting elements, these flanges are preferably directed inwards and provided with bores or slots. The outer profiles are elastic with known grooves for attachment

 Provide seals. According to the invention, in the areas between the outer profile and the central profile, or in the area of the connecting elements, a seat is provided for a known intumescent seal which fills its effect in the free space between the two composite profile frames forming the stick and the sheet.

 The anchoring element can be in one piece with the central profile or on this between its own, protruding from the profile. Flanges are attached with or without the interposition of insulation material around the

 To prevent heat transfer if possible. This

 Anchoring elements can be of a profile

 be cut off and attached at a distance from each other by using the elasticity of the flanges or by rotating the parts by approx. 90 ° into the seat on the profile in order to turn them with the longitudinal axis parallel to the longitudinal axis of the profile and thus to prevent them from being pulled off . The same profile from which the anchoring elements are cut off can be used to form the connection between two composite profiles if there is no one on the corresponding sides

Stop flange is provided (Fig. 6). The parts which according to the invention the further development of

Manufacturing system of composite profiles are the connecting elements between the central profile and the outer profiles, being between them

 Composite profile parts thermal bridges can be avoided by completely preventing direct metallic contact or, in the case of using snap-on connecting elements, being limited to an extremely reduced area. In the latter case they are

Support flanges dimensioned so that in the case of

Exposure to temperatures close to

Melting temperature of the aluminum, melt it within a short time and so this smallest thermal bridge remove. With appropriate dimensioning of the

 Core cross section, especially in the area of

 Composite profile rollover can be achieved that when the outer profile facing the source of the fire completely melts, the bare core adequately protects the underlying metal parts. The use of the

 Fasteners according to the invention allows, during the injection phase, less robust shapes without devices to prevent the leakage

 to use injected insulation compound, but above all it is possible to take the freshly injected composite profile out of the mold after a short time after the dimensional stability of the entire composite profile, after the injection phase under pressure, is guaranteed by the connecting elements and is sufficiently high that the

 Composite profiles, which at the ends with simple

 Plugs or lids are closed until the insulation mass has hardened, can be handled without any problems, so that this hardening during the

 Storage time or until removal can take place. The invention does not exclude the possibility of using different materials for the outer profiles, in particular extruded aluminum, which may also only limit the temperatures that occur

 withstands, but also rolled, rolled material that is actually only an aesthetic, shape-stabilizing and shape-forming function for the production of the

 heat-resistant core. in case of a

 Brandes only become that part of the outer profile

melt away, which forms the rollover along the closing gap between the door leaf and door frame; this area is however provided by the effect of those provided there

Sealed intumense seal.

 The invention is illustrated by some preferred, schematically illustrated in the accompanying drawings,

Embodiments of the invention

Manufacturing process characteristic, composite profiles for the manufacture of fire doors and

Fire protection partition walls, explained in more detail; this

Drawings are purely explanatory, not limiting Function.

 1 shows a cross section through a

 composite profile according to the invention with an L shape

 Cross-section which interacts with a composite profile with a T-shaped cross-section, both composite profiles are provided with connecting elements, have no metallic contact points between the central and outer profiles, the L-shaped composite profile is integral with the central profile

 Provide anchoring elements, while the T-shaped composite profile has a central profile that has flanges to which the anchoring elements are attached without the interposition of insulation material.

 2 shows a partial section through a composite profile according to the invention with connecting elements that can be pushed on in the longitudinal direction with the free ones

 Flanges of the outer profiles directed against the inner core and with the, on the central profile below

 Intermediate layer of an insulation layer, attached

 Anchoring elements.

 3 shows a partial section through a composite profile according to the invention with knurled bores or provided in the free flanges of the outer profile directed against the inner core

 Elongated holes, snap-on connecting elements, with on the central profile with the interposition of one

 Insulation layer attached anchoring elements and with support flanges, which protrude in one piece from the central profile and the core mass during the

Curb injection.

 4 shows one. partial section through a composite profile according to the invention with connecting elements pushed on in the longitudinal direction, with outward-facing free flanges of the outer profiles and with one piece projecting from the central profile

Anchoring elements.

 5 shows a partial section through an inventive composite profile with, in, on

groove provided in the center profile, inserted Fasteners, which on the opposite side with

 Projections in elongated holes are snapped onto the free flanges of the outer profiles and with anchoring elements attached to the central profile with the interposition of an insulation layer.

 6 shows a cross section through two

 profiles in accordance with the invention inseparably combined to form a composite profile, one of which is anchored to a wall and has connecting elements, which may be snapped onto the central as well as the free flanges of the outer profile provided with elongated holes, while the second composite profile has connecting elements which in a knurled groove on the central profile is pressed in and on the

 Opposite side in, on the free flanges of the outer

 Profile provided, elongated holes are snapped open; in both cases the central profiles are included

 Provide support profiles, which have a protruding projection at right angles, which determine the seat for the intuminal seals on one side, while on the opposite side they serve to accommodate the freely projecting flanges of the connecting profile, which

 may have the same cross-section as the profile for the manufacture of the anchoring elements.

 7 shows a partial section through

 composite profiles according to the invention, which are composed entirely of extruded aluminum profiles; the anchoring element and the flanges for the

Slide on the connecting elements (41)

in one piece from the central profile (1).

 8 shows a cross section through a Z-shaped composite profile according to the invention, which is composed entirely of extruded aluminum profiles, the cross sections of the outer profiles are different, with one of the profiles in particular having a larger cross section of the core in the area of the rollover.

The composite profiles that can be produced by the method according to the invention consist of a central profile 1 and of two outer profiles 2 which overlap with the first one Connecting elements 4, 4a, 4d, 4e, 4f, 4g, 4h, 4i, 4l, 4m

 are coupled; between the central profile 1 and the outer profiles 2, anchoring elements 3, 3a, 3b are provided, which are attached to the central profile 1 or formed in one piece. The space enveloped by the outer profile 2 is from the connecting elements

 4, 4a, 4d, 4e, 4g, 4l, 4m or by the support flanges 1i and by the wall facing the outer profile 2 of the central profile and forms a mold for the injection of a doughy material, which as a result

Hardening forms the heat-insulating and heat-resistant core 7. The central profile is according to the invention

 preferably made of extruded aluminum because it is covered against the heat source by the outer profiles 2, which can preferably be made of steel or aluminum, free of thermal bridges, and in particular of the heat-insulating inner core 7, and because this material and this processing are appropriate branched cross sections with flanges lf for attaching the anchoring elements 3, 3b, with grooves 1g, 1l, 1m, 1n and / or fastening flanges le, with any

To produce support flanges 1i together with formations 1k and any anchoring flanges 3a. Furthermore, the walls 1d have the hollow channels 1b for installation

different fittings lock, grooves 1c on.

which form predetermined breaking points and thus enable a simple pulling off of the wall 1d if necessary

To make hollow channel 1b accessible from the outside. The outer profiles 2 made of steel or aluminum can

have different shape; these profiles actually serve only during the manufacture of the composite profile as a casting mold around the injected doughy mass, which as a result is the heat-insulating, heat-resistant

Inner core 7 forms, to grasp and to shape, while up to the moment of heat exposure due to a fire, these outer profiles 2 have an aesthetic and impact function, and hold the core which may have become cracked due to the processing of the composite profiles in such a way that the protective properties of the door or partition do not. parts of the core 7 are still crumbling or can come loose. The fasteners

 4, 4a, 4d, 4e, 4f, 4g, 4h, 4i, 4l, 4m are preferably made of

 Plastic may not be made

 has special properties in terms of heat resistance, because in the event of fire the

 Anchoring the core 7 to the central profile 1 by means of attached, spaced apart, distributed in the longitudinal direction of the entire central profile

 Anchoring elements 3,3a takes place, which are cast in the mass of the core 7. The anchoring elements 3b can be cut off from a profile which has an identical cross section as the connecting profile between two composite profiles according to the invention (FIG. 6), which are connected laterally in parallel; the anchoring elements 3a, however, protrude in one piece from the central profile 1 and can be cut or

 Cutouts are interrupted in the continuity of their longitudinal extent in order to limit the heat transfer to the central profile. The connecting elements 4 can be attached laterally to the flanges le of the central profile 1 and to the outwardly directed flanges 2a of the outer profiles, the projection 4b snapping behind the edge of the angle flanges la; this

 Cross section of the connecting element 4 does not preclude longitudinal insertion; the seat 6a for the

Intumence seal 6 is determined by the outer surface of the element 4 and the corresponding projections of the central profile 1 and the outer profile 2. The

 Connecting elements 4a are in the longitudinal direction with the part 4c in corresponding grooves on the central profile 1 and on the inwardly directed flanges 2b of the outer

Profile 2, introduced. The connecting elements 4d and 4e are inserted in the longitudinal direction on the T-shaped flanges le on the central profile 1, while on the outer profiles 2 in the case of the connecting element 4d (FIG. 2) on inwardly directed flanges 2b

clamp and in the case of the connecting element 4e

(Fig.4) on outward flanges 2a

cling to. The connecting elements 4f, 4g, 4h, 4i are all against the flanges 2c. what holes or Have elongated holes 2d with elastically deformable

 Provide heads for snap connection, while against the central profile 1 they have a grooved area 4i (Fig. 3,6) for insertion under pressure into corresponding grooved seats 11 or In on the profile 1, or a second elastically deformable head for the purpose

 Have a snap connection in the corresponding groove 1g (Fig. 6) on profile 1. The connecting element 4g (Fig.5) is made of an extruded profile and forms with the wall 4k a dam for the injected mass 7, while the elastically deformable heads

Cutting or milling out intermediate areas

arise so that attachable to the flanges 2c

Projections arise. In the case of using

Connecting elements 4f, 4h, 4i (Fig. 3,6), the injected mass 7 is contained by the

Support flanges 1i which are supported on the outer profiles 1, these flanges are dimensioned such that they melt within a short time when the melting temperature is reached and thereby interrupt the metallic heat transfer, the protruding projection 1k on this

Flanges are arranged in such a way that they determine the seat for the intuminal seal on one side, while on the opposite side they determine a seat for possible

Connection profiles 2b (Fig.6) with an identical cross section as that of the anchoring elements 3b forms. The

Connecting elements can have flanges or protrusions 4 m in order to anchor them in the mass of the inner core.

Claims

PROTECTION CLAIMS 1.- Manufacturing process for, for the production of  Fire protection doors and fire protection partitions suitable, composite profiles which consist of more than one profile  are composed and are bound by an injected mass, which fills the cavities present between the profiles, wherein in the injected mass, which forms a heat-insulating and heat-resistant core due to curing  Anchoring elements and / or reinforcement elements  are provided without a metallic contact between the assembled profiles, characterized in that the composite profile according to the invention between the individual profiles (1, 2),  Connecting elements (4, 4a, 4d, 4e, 4f, 4h, 4g, 4i, 4l, 4m) has in order to produce a dimensionally stable connection between the profiles (1,2) forming the connecting profile and to increase the dwell time in the mold after the injection of the Shorten the insulation mass by allowing the composite profile to be handled with the lids or plugs attached to the profile ends when the mass (7) has not yet hardened.  2.- Manufacturing method according to claim 1, characterized in that the final insulation of the injected insulating material (7), laterally in the by the  Composite profiles (1,2) do not  enclosed areas, according to the invention by the Connecting elements (4, 4a, 4d, 4e, 4g, 4l, 4m) are made. 3.- Manufacturing method according to claim 1, characterized in that in the case of spaced attached connecting elements (4f, 4h, 4i) The insulating compound (7) is contained during the injection phase by supporting flanges (1i) which protrude from one of the profiles, preferably from the profile (1) with a lower melting point. 4.- composite profile manufactured according to the method cited in claims 1,2,3, characterized in that it consists of a central profile (1) and two outer profiles (2) which laterally on the first Connecting elements (4, 4a, 4d, 4e, 4f, 4g, 4h, 4i, 4l, 4m) are attached and that on the central profile (1) protruding or attached anchoring elements  (3, 3a, 3b) are provided, which are cast in the insulating compound (7).  5.- composite profile according to claims 1, 2, 3, 4, characterized in that the central profile (1) is preferably extruded, a central hollow channel (1a) for the purpose of installing known connecting fittings, locks and the like and two channels (lb) for installation  various fittings, and that on the  Outside walls, these channels are provided with longitudinal grooves (1c), which represent predetermined breaking points.  6.- composite profile according to claims 1,2,3,4,5, characterized in that the outer profiles (2) together with the walls of the central profile (1), which are turned against the outer profiles, two separate cavities for the injection of the heat insulating and  Form heat-resistant insulation compound (7).  7.- composite profile according to claim 1,2,3,4,5,6, characterized in that the attachment of the Anchoring elements (3,3a) with the interposition of Insulation layers (6a) or U-shaped insulation profiles pushed onto the anchoring flanges.  8.- composite profile according to claims 1,2,3,4,5,6,7, characterized in that the seats (6a) for the possible attachment of intumenz seals determined by the outer surface of the connecting elements (4, 4a, 4d, 4e, 4g, 4l) and the adjacent area of the projecting central profile (1) and the outer profile (2) or from the central profile (1) protruding support flanges (1i) with the protrusion (1k) projecting at right angles from it, together with the projecting part of the outer profile (2) Guide groove for the possible attachment of a Connection profile (3b - Fig.6) is formed. 9.- composite profile according to claims from 1 to 8, characterized in that the outer profiles (2-7) are extruded and have a relatively low melting point have (aluminum), and that the interior in this profile in the area of the flap (2e) for the joint between the door leaf and door frame is filled with insulating compound (7) and on the outside of this flap a seat (6c) is provided for an intumacy seal.