DE102023105033A1 - Composite profile, frame and process for producing the composite profile - Google Patents

Abstract

A composite profile (2) for a window or a door or a facade element has the following: a one-piece aluminum profile (1) extending in a main direction of extension, to which an insulating profile (2) is fixed in two fastening areas next to the aluminum profile (1) and parallel to it, wherein the one-piece aluminum profile has one or more recesses (111) where it runs next to the insulating profile (2), between which aluminum webs (113) are formed. A method for producing such composite profiles is also described.

Description

The present invention relates to a composite profile for a window or a door or a facade element, a frame and a method for producing a composite profile for a door or a window or a facade element, in particular with fire protection properties.

Such processes and composite profiles are known from the state of the art, for example from EP 2 990 581 A1 .

• - einteilige, thermisch nicht isolierte Aluminiumprofile und
• - die sogenannten Verbundprofile mit mindestens einer thermischen Isolierzone aus mindestens einem Kunststoffprofil; dem Isolierprofil.

There are basically two types of aluminum profile systems:

• - one-piece, thermally non-insulated aluminium profiles and
• - the so-called composite profiles with at least one thermal insulation zone made of at least one plastic profile; the insulating profile.

State-of-the-art composite profiles generally have a first profile - usually an external profile - and a second aluminum profile - usually an internal profile - which are connected to one another by at least one element that reduces heat transfer, for example an insulating profile, which can be made of a less conductive material such as plastic. However, it is also conceivable that the composite profiles from outside to inside - based on an example installation situation in an external wall - have three or more aluminum profiles and have two or more insulating profile zones. When used inside a building - which is also conceivable - one room is to be regarded as an outdoor room and the other room as an indoor room.

An aluminium profile within the meaning of this document is a profile which is made of aluminium or an aluminium alloy.

The composite profiles are particularly - but not exclusively - suitable for the manufacture of doors or windows in fire protection design, which then preferably have at least fire resistance class T30 or F30 according to DIN 4102-13 and according to DIN EN 16034 for outdoor use, i.e. for installation in external fire protection walls in fire resistance class El ₂ 30-S _a C2. They can also be used in doors, windows or facade elements that are not designed as fire protection walls and/or are used inside buildings.

Fire protection constructions made of thermally separated profile constructions have also been known for a long time. For example, in the EP 0 717 165 B1 a profile system in fire protection design is described, which consists of an aluminum profile with a central area in which the heat flow is reduced compared to the outer areas by recesses such as punched-out areas. The disadvantage of such fire protection constructions is that they can bend in the event of a fire, i.e. when the temperatures on the inside and outside are different (bimetal effect).

To produce composite profiles according to the state of the art, two aluminum profiles are usually provided, each of which has at least one (or more) undercut groove(s) in its main direction of extension, into which corresponding foot areas of a plastic insulating profile can be inserted. After this insertion, an edge web of the grooves of the aluminum profiles, known as an anvil, is usually rolled onto the insulating profile.

In order to give composite profiles the necessary temperature resistance in the event of fire, in accordance with the different standardized fire protection classes, EP 1 138 864 A1 temperature-resistant bridge elements, preferably made of steel, under which the insulation profiles and the profiles are attached to each other. Then connected (rolled). The insulation profiles must be partially milled out, bridge elements must be made as stamped and bent parts made of steel, an adhesive connection must be provided for mounting the bridge elements on the insulation profiles and the bridge elements must be inserted precisely into the milled recesses. The components and these work steps are complex and expensive.

Therefore, a composite profile is to be created that has very good static properties, which preferably also enable use in fire protection areas. In addition, the corresponding manufacturing process is to be designed as simply as possible by the invention.

The present invention solves this problem by the composite profile of claim 1. It also provides the frame of claim 16, the window or door according to claim 17 and the method of claim 18. Advantageous embodiments of the invention are specified in the subclaims.

According to claim 1, a composite profile for a frame of a window or a door is created, which has the following: a one-piece aluminum profile extending in a main direction of extension, to which an insulating profile is fixed in two - different - fastening areas, running parallel to the aluminum profile, wherein the one-piece aluminum minium profile, where it runs next to the insulating profile, has one or more recesses, between which aluminum webs are formed, which preferably remain there after cutting or punching.

Surprisingly, it has been shown that the combination of a one-piece, uninsulated aluminum profile with an insulating profile, with both running directly next to each other in sections, not only has very good fire protection properties (resistance times), but also very good statics.

The static properties of this composite profile are very good, particularly due to the combination of aluminum webs and the plastic insulating profile in the insulating zone. The composite profile is particularly suitable for use where, in addition to an insulating zone for thermal insulation, particularly high static requirements are placed on the composite profile.

It is preferred and expedient if the fastening areas are rolling areas. It is also particularly advantageous and simple and improves the statics if the rolling areas on the aluminum profile comprise grooves, with the corresponding foot sections of the insulating profile engaging in these grooves.

From the WO 2005/028797 A1 It is known that a web made of a different material can be attached to a steel profile made of several pieces that has been welded together using recesses in the steel profile that are designed to reduce heat conduction. However, the multi-piece welded steel profile is disadvantageous in that this manufacturing process requires greater tolerances, which can be easily avoided by designing the metal profile as an aluminum profile in one piece. On the other hand, the steel profile is quite stable and heat-resistant, so that the web attached to it does not achieve any significant improvement in the static properties. This is probably also the reason why no consideration has been given to transferring this solution to the area of aluminum composite profiles.

According to an advantageous embodiment, it contributes to very good statics if the grooves are open in a section perpendicular to the main extension direction exactly or essentially in the opposite direction and if the corresponding foot sections of the insulating profile, pointing exactly or essentially in opposite directions, engage in these grooves, wherein the foot sections are fixed in the grooves in a shear-resistant manner parallel to the main extension direction or in this main extension direction and against this direction.

According to an advantageous embodiment, it is expediently provided that the foot sections are fixed in the grooves in a shear-resistant manner parallel to the main direction of extension with a means that increases the shear strength. This means can be formed, for example, from a knurled wire or the like running in the grooves parallel to the feet or also by another means such as a projection on one of the groove webs (e.g. on the groove web called the anvil), which is pressed into the insulating profile when it is rolled onto the insulating profile.

According to another particularly advantageous embodiment, the statics are further positively influenced by the fact that the foot sections are fixed in the grooves in a tensile-resistant manner perpendicular to the main direction of extension. According to an advantageous embodiment, it is expediently provided that the grooves are fixed in the grooves in a tensile-resistant manner perpendicular to the main direction of extension by at least one means that increases the tensile strength. For example, it can be advantageously provided that the respective grooves are designed as undercut grooves in relation to the section perpendicular to the main direction of extension, into which the corresponding foot sections engage in the manner of a tongue and groove connection, with the grooves widening continuously or in sections starting from an opening area in the direction of their groove base and with the foot sections widening correspondingly towards their ends, so that the foot sections are fixed in the grooves in a tensile-resistant manner by these means perpendicular to the main direction of extension. These measures are also from the WO 2005/028797 A1 not known.

It is preferred that the aluminum webs run at least partially next to the insulating profile, in particular parallel and transverse or diagonal to the insulating profile. In this way, the static properties of the composite profile are particularly good. It can then even be provided that the webs run at least partially parallel to the insulating profile and support it.

It is also visually advantageous if, in an advantageous design, the recesses on one side are covered by the insulating profile.

And finally, good statics are also achieved if, according to an advantageous embodiment, the insulating profiles and the aluminum webs are formed in a corresponding C-shape at least in sections and preferably lie against one another in sections.

The prefabricated aluminum profile is preferably and simply designed as a one-piece extruded aluminum or aluminum alloy profile to which the single insulating profile is attached.

The recesses can be rectangular or trapezoidal, for example.

In terms of good thermal insulation and good statics, according to a further optional design, it is further advantageous if one or more hollow chambers are formed in the aluminum profile.

In addition, according to another aspect and good thermal insulation and good statics according to a further optional embodiment, it is further advantageous if the grooves are each supported by one or more wall sections of the aluminum profile, wherein one of these wall sections runs approximately perpendicular to the respective base wall of the respective groove and wherein the other of these wall sections runs obliquely - preferably at an angle between 20° and 70° - approximately in extension of one side wall of the respective groove.

The invention also provides a frame composed of several composite profiles according to one or more of the claims related thereto, wherein one or more of the composite profiles of the frame have/have a first aluminum zone I perpendicular to the main plane of the frame towards a first side of the frame, then an insulating zone II made up of the webs and the insulating profile and then again an aluminum zone (III).

In this case, it is further advantageous in terms of good thermal insulation and good statics if the one or more respective hollow chambers according to one embodiment are each provided in the aluminum zones I and III.

In addition, a window or door is created which has at least one such frame.

• 100: Bereitstellen eines vorgefertigten einstückigen Aluminiumprofils und Bereitstellen wenigstens eines vorgefertigten Isolierprofils
• 200: Einschieben von sich senkrecht zur Haupterstreckungsrichtung des Isolierprofils zu ihren freien Enden hin verbreiternden Fußbereichen des Isolierprofils in wenigstens zwei hinterschnittene Nuten (105, 106) des Aluminiumprofils; in wenigstens zwei Nuten des Aluminiumprofils,
• 300: Anrollen des Isolierprofils in wenigstens zwei Anrollbereiche an das eine Aluminiumprofil,
• 400: wobei das vorgefertigte Aluminiumprofil ein Strangpressprofil ist, in welches vor oder nach dem Anrollen des Isolierprofils an das Aluminiumprofil eine oder mehreres Aussparungen in dem Wandabschnitt zwischen den beiden Nuten eingebracht werden, so dass zwischen den Aussparungen jeweils ein Steg verbleibt.

The invention also provides an advantageous and simple method for producing a composite profile for a frame of a window or a door according to one of the claims related thereto, comprising the following steps:

• 100: Providing a prefabricated one-piece aluminum profile and providing at least one prefabricated insulating profile
• 200: Inserting foot regions of the insulating profile, which widen perpendicularly to the main extension direction of the insulating profile towards their free ends, into at least two undercut grooves (105, 106) of the aluminium profile; into at least two grooves of the aluminium profile,
• 300: Rolling the insulating profile onto the one aluminium profile in at least two rolling areas,
• 400: wherein the prefabricated aluminum profile is an extruded profile into which one or more recesses are made in the wall section between the two grooves before or after the insulating profile is rolled onto the aluminum profile, so that a web remains between each of the recesses.

• 1: eine Schnittansicht eines Aluminiumprofils und eine Schnittansicht eines Isolierprofils
• 3 eine weitere Schnittansicht eines anderen Aluminiumprofils, ähnlich zu 1, in welches Aussparungen eingebracht worden sind;
• 3 eine schematische Ansicht eines Rahmens aus Verbundprofilen;
• 4: a) bis d) vier Schnittansichten, welche vier Schritte eines beispielhaften erfindungsgemäßen Herstellverfahrens zur Herstellung eines Verbundprofils

veranschaulichen sollen, wobei das Aluminiumprofil nur abschnittsweise dargestellt ist.Embodiments of the subject matter according to the invention are shown in the drawings and are described in more detail below. The invention is not limited to the features shown in the figures. In addition, not all features of the figures always have to be used in the combination of features shown. This is advantageous, but not mandatory. The individual features can also be used in other embodiments than those shown or combined differently. They show:

• 1 : a sectional view of an aluminium profile and a sectional view of an insulating profile
• 3 another sectional view of another aluminum profile, similar to 1 , in which recesses have been made;
• 3 a schematic view of a frame made of composite profiles;
• 4 : a) to d) four sectional views showing four steps of an exemplary manufacturing method according to the invention for producing a composite profile

are intended to illustrate this, whereby the aluminium profile is only shown in sections.

1a shows a view of an exemplary aluminium profile 1 and an exemplary insulating profile 2, from which a composite profile 3 ( 4c , 4d ) for a window or door.

The composite profile 3 is particularly suitable for the manufacture of a circumferentially closed or non-circumferentially closed frame 4 (see 3 ) for a window or a door, which is composed of three or four or more cut composite profiles 3a, 3b, 3c, 3d. The frame 4 can be a sash frame. The frame 4 can also be designed as a blind frame. The frame 4 extends in a kar tesian coordinate system mainly in an X/Y plane and also has a certain extension in the Z direction perpendicular to its main plane.

The aluminum profiles 1 then extend preferably perpendicular to the X/Y plane of the frame 4, continuously metallically at least in the area of webs to be described vertically over the entire construction depth Z of the frame 4, i.e. preferably from “outside to inside”.

The aluminum profile 1 can particularly preferably be designed as a one-piece extruded profile made of aluminum or an aluminum alloy.

The aluminum profile 1 can have one or more hollow chambers 101, 102, which have an advantageous effect on the statics and the thermal insulation, in particular in sections which, after the production of the composite profile to be manufactured, lie outside a section in which the insulating profile 2 of the composite profile runs essentially or exactly parallel to the aluminum profile 1.

These hollow chambers 101, 102 can be connected to one another via one or more - here two - wall sections 103, 104 running in the Z direction. These wall sections 103, 104 can run exactly or essentially parallel to one another.

The width of the aluminum profile 1 and the composite profile 3 in the Z direction can be changed by widening the hollow chambers 101, 102 and changing the distance between the wall sections 103, 104.

In the area of one wall section 104, grooves 114, 115 can be provided, in particular for fixing fittings for locks or the like.

The aluminum profile 1 also has at least two spaced-apart, in particular undercut, grooves 105, 106 for inserting two corresponding foot sections 201, 202 of a single insulating profile 2, preferably in sections towards their free ends. This creates the basis for a very tensile connection between the insulating profile 2 and the aluminum profile 1 in the + and - "Z direction".

The insulating profile 2 preferably extends in a main extension direction (perpendicular to the view of the 1 ) continuously over the entire length of the aluminium profile 1. And also the grooves 105, 106 and the foot sections 201, 202 preferably extend in the main extension direction X perpendicular to the view of the 1 continuously over the entire length of the aluminium profile 1. One wall section 103 of the aluminium profile 1 runs between the grooves 105, 106.

The grooves 105, 106 are open on one side. They are formed on the aluminum profile 1 in such a way that they are open in opposite directions. Here they are directly opposite each other in a line. They are roughly U-shaped, but at least slightly undercut so that the corresponding foot sections 201, 202 of the insulating profile 2, which widen towards their free ends, can be inserted into them in the manner of a tongue and groove system.

The grooves 105, 106 can be supported on their opposite sides by one or more - here advantageously two - wall sections 107, 108; 109, 110. These each extend to the respective hollow chamber 101, 102. One of these wall sections 107, 109 can run approximately centrally perpendicular to the respective base wall of the respective groove 105, 106. And the other of these wall sections 108 or 110 can run approximately in extension of one side wall of the respective groove 105, 106 obliquely at an angle α between in particular 20° and 70° to the Z direction, so that the grooves 105, 106 are each very well stabilized by two wall sections.

The wall sections 107 and 108 on the one hand and 109, 110 on the other hand extend to a respective inner wall 1011 1021 of the two hollow chambers 101 and 102 in the zones I and III and serve as a solid support of the “thermal insulation” zone II made up of the insulating profile 2 and the webs 113 running alongside it.

The foot sections 201, 202 of the insulating profile 2 preferably also extend in opposite directions. A wall-like web region 203 of the insulating profile 2 extends between the foot sections 201, 202 of the insulating profile 2, initially continuous in the main extension direction. This web region 203 can - but does not necessarily have to - be C-shaped.

A preferred embodiment of the manufacturing process according to the invention is described with reference to 4a to 4d illustrated. The cuts of the 4a and b are located in different places in the main extension direction of the profiles 1,2. The sections of the 4c and f are located at the positions of 4a or 4b , but reflect a later stage of the manufacturing process.

From the aluminum profile 1 is in 4a - d essentially only one section is shown in each case, in which the insulation profile 2 is to be fixed. This section extends - in relation to a frame - in the direction of the construction depth Z, preferably over the depth of an insulation zone II.

To produce the composite profile 3, the prefabricated, in particular extruded, aluminium profile 1 ( 1 , 4a) and the insulating profile 2 made of plastic, manufactured in particular in an extrusion process.

Recesses 111, 112 are now or were previously made in the provided aluminum profile 1, namely at least recesses 111 are made in the wall section 103 next to and between the grooves 105, 106 ( 2 , 4b) introduced.

These recesses 111 are designed in such a way that between them (vertically 4c , 4d ) each aluminum web 113 remains ( 2 , 4c ). Now the insulation profile 2 is positioned with its two feet perpendicular to the plane of the 2 or 4a , 4b) inserted into the aluminum profile 1. Then at least one groove wall 1051, 1061 - called anvil - of the grooves 105, 106 is rolled onto the foot areas 201, 202 of the insulating profile 2. This is done with high pressing force so that a shear-resistant connection is created between the profiles 1 and 2. In this way, the insulating profile 2 runs parallel to the aluminum webs 113, ( 4a , 4d ). It may even rest against them, in particular if the aluminum webs 113 have a projection 116 protruding in the direction of the insulating profile 2.

Since the grooves 105, 106 are undercut and the foot areas 201, 202 of the insulating profile 2 are designed to correspond thereto, a very good tensile connection between the aluminum profile 1 and the insulating profile 2 is achieved in the Z direction, which contributes excellently to optimized static properties of the composite profile 4. These can be further optimized by the fact that this connection between the aluminum profile 1 and the insulating profile 2 is also designed to be shear-resistant, i.e. very stable, in the main extension direction of the profiles 1, 2.

This shear strength can be optimized by suitable means to increase the shear strength, such as a knurled wire.

According to the illustrated embodiments, it is also provided that the foot sections 201, 202 of the insulating profile 2 are fixed in the grooves 201, 202 in a tensile manner perpendicular to the main extension direction by at least one means increasing the tensile strength. For this purpose, it is initially provided here that the respective grooves 105, 106 are designed as undercut grooves with respect to the section perpendicular to the main extension direction, into which the corresponding foot sections 201, 202 of the insulating profile 2 engage in the manner of a tongue and groove connection, wherein the grooves widen continuously or in sections starting from an opening area in the direction of their groove base and wherein the foot sections 201, 202 of the insulating profile 2 widen correspondingly towards their respective free ends, so that the foot sections 201, 202 of the insulating profile 2 are fixed in the grooves 201, 202 by these means perpendicular to the main extension direction (here in the Z direction) in a particularly tensile manner.

In this case, it can also be further provided, for example, that at least one projection 10511, 10611 protruding in the direction of the insulating profile 2 is provided on the respective anvil 1051, 1061, which is embossed into the insulating profile 2 when the anvil 1051 is rolled on, which increases the tensile strength in the Z direction and against this direction in the region of the fastening areas between the profiles 1 and 2.

Unlike conventional composite profiles 3, the aluminum profile 1 here runs with spaced-apart aluminum webs 113 parallel and transverse or diagonal to the insulating profile 2 in the insulating profile zone. The composite profile 3 thus has a frame 4 in the manner of the 4 firstly a first aluminium zone I, then an insulating zone II, in which the insulating profile 2 and aluminium webs 113 of the aluminium profile 1 run next to one another, in particular parallel to one another, and then a second aluminium zone III.

The composite profile 3 produced in this way is very stable. It is also easy to manufacture very precisely, since the depth of the composite profile 3 perpendicular to the frame 4 is not added up from the individual widths of several aluminum profiles and an insulating profile 2, but is determined solely by the width of the aluminum profile 1 provided.

The recesses 111 can, for example, have a rectangular shape or a trapezoidal shape.

The recesses 111 can, for example, have an area of more than 30 mm by 50 mm. The aluminum webs 113 can, for example, be perpendicular to the plane of the 2 each have an extension of 4 to 14 mm.

The spacing of the aluminum webs 113 in the longitudinal direction of the profiles is preferably more than 100 mm.

The statics of the aluminum profiles 1 only via these AL webs 113, i.e. without insulating profile 2, would not be sufficient, especially for large frames. However, the heat transfer would already be very low, which is advantageous. The aluminum webs 113 hold the profile 4 in the event of a fire, for example, because they do not melt as quickly as the insulating profiles 2. The very high static values, however, arise from the combination of the aluminum webs 113 and the insulating webs 2 firmly connected to the aluminum profile 1 (preferably connected with a positive connection in several directions). This achieves very high static values in these several or even all possible directions, while still providing very good heat transfer values for normal use and in the event of a fire.

This composite profile 3 can be used in all frame constructions where very good statics are desired, be it because the frame 4 is, for example, very large and/or heavy or because the window or door to be manufactured with it must comply with a fire protection standard.

Surprisingly, it has been shown that the combination of a one-piece, uninsulated aluminum profile 1 with an insulating profile 2 in a composite profile, with both running next to each other in sections, not only has very good fire protection properties (resistance times), but also very good statics.

In order to improve thermal insulation (normal temperatures -20 to + 70 degrees C) and to be able to easily install fittings such as locks and closers, the one-piece, uninsulated profiles are provided with recesses 111, 112 on at least one, preferably on two sides.

The additional insulating profiles 2, which improve the statics, also have the advantage that they cover the recesses 111 in areas in which, for example, no fittings are used or installed. Additional cover profiles are therefore not required.

In order to optimize thermal insulation, statics and heat resistance, several and/or differently shaped recesses 111, 112 can be provided. The one-piece and one-part, uninsulated aluminum profile 1 is preferably first milled and then provided with the insulating profile 2, in particular rolled in a shear-resistant manner.

Reference symbol

1

Aluminium profile

101, 102

Hollow chambers

1011 1021

Wall

103, 104

Wall sections

105, 106

Grooves

1051, 1061

Groove walls

10511, 10611

projection

107, 108; 109, 110

Wall sections

111, 112

Recesses

113

Bridges

114, 115

Grooves

116

Advantage

2

Insulation profile

201,202

Foot sections

203

Section

I, II, III

Zones

α

angle

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• EP 2990581 A1 [0002]
• EP 0717165 B1 [0007]
• EP 1138864 A1 [0009]
• WO 2005028797 A1 [0016, 0019]

Claims (18)

Composite profile (2) for a window or a door or a facade element, which has the following: a. a one-piece aluminum profile (1) extending in a main direction of extension, to which an insulating profile (2) running parallel to the aluminum profile (1) is fixed in two fastening areas, b. the one-piece aluminum profile has one or more recesses (111) where it runs next to the insulating profile (2), between which aluminum webs (113) are formed. Composite profile according to Claim 1 , characterized in that the fastening areas are rolling areas, wherein the rolling areas of the aluminum profile (1) each comprise a groove (105, 106), wherein corresponding foot sections (201, 202) of the insulating profile (2) engage in these grooves (105, 106). Composite profile according to Claim 2 , characterized in that the grooves (105, 106) are open in a section perpendicular to the main extension direction exactly or substantially in the opposite direction and that the corresponding foot sections (201, 202) of the insulating profile (2) pointing exactly or substantially in opposite directions engage in these grooves (105, 106). Composite profile according to Claim 2 or 3 , characterized in that the foot sections are fixed in the grooves (105, 106) in a shear-resistant manner parallel to the main extension direction. Composite profile according to Claim 4 , characterized in that the foot sections (201, 202) of the insulating profile (2) are fixed in the grooves (105, 106) in a shear-resistant manner by means of a means which increases the shear strength. Composite profile according to Claim 4 or 5 , characterized in that the foot sections (201, 202) of the insulating profile (2) are fixed in the grooves (105, 106) in a tensile manner perpendicular to the main extension direction. Composite profile according to Claim 6 , characterized in that the foot sections (201, 202) of the insulating profile (2) are fixed in the grooves (105, 106) in a tensile manner perpendicular to the main extension direction by at least one means increasing the tensile strength. Composite profile according to Claim 7 , characterized in that the respective grooves (105, 106) are designed as undercut grooves (105, 106) with respect to the section perpendicular to the main direction of extension, into which the corresponding foot sections (201, 202) of the insulating profile (2) engage in the manner of a tongue and groove connection, wherein the grooves (105, 106) widen continuously or in sections starting from a respective opening region in the direction of their groove base and wherein the foot sections (201, 202) of the insulating profile (2) widen correspondingly towards their ends, so that the foot sections (201, 202) of the insulating profile (2) are fixed in the grooves (105, 106) in a tensile manner perpendicular to the main direction of extension by these means. Composite profile according to one of the preceding claims, characterized in that the aluminum webs (113) run at least partially next to the insulating profile (2). Composite profile according to one of the preceding claims, characterized in that the recesses (111) are covered on one side by the insulating profile (2). Composite profile according to one of the preceding claims, characterized in that the insulating profiles (2) and the aluminum webs (113) are at least partially correspondingly C-shaped and preferably lie against one another in these areas. Composite profile according to one of the preceding claims, characterized in that the prefabricated aluminum profile (1) is an extruded profile made of an aluminum alloy. Composite profile according to one of the preceding claims, characterized in that one or more hollow chambers (101, 102) are formed in the aluminum profile (1). Composite profile according to one of the preceding claims, characterized in that the recesses (111) are rectangular or trapezoidal. Composite profile according to one of the preceding claims, characterized in that the grooves 105, 106 are each supported by one or more wall sections 107, 108 of the aluminum profile (1), wherein one of these wall sections (107, 109) runs approximately perpendicular to the respective base wall of the respective groove (105, 106) and wherein the other of these wall sections runs approximately in extension of the one side wall of the respective groove 105, 106 obliquely at an angle between 20° and 70°. Frame, composed of several composite profiles according to one or more of the Claims 1 until 15 , where one or more of the Composite profiles (4) of the frame (4) have/have a first aluminium zone (I) perpendicular to the main plane of the frame (4) towards a first side of the frame (4), then an insulating zone (II) consisting of the webs and the insulating profile (2) and then again an aluminium zone (III). Window, door or facade, which has at least one frame according to Claim 16 has. Method for producing a composite profile (2), in particular according to one of the Claims 1 until 15 , furthermore particularly intended for a framework according to Claim 16 , with the following steps: 100: Providing a prefabricated one-piece aluminum profile (1) and providing at least one prefabricated insulating profile (2); 200: Inserting foot regions of the insulating profile, which widen towards their free ends perpendicular to the main direction of extension of the insulating profile, into at least two undercut grooves (105, 106) of the aluminum profile; 300: Rolling the insulating profile (2) onto the one aluminum profile (1) in at least two rolling regions; 400: The prefabricated aluminum profile is an extruded profile into which one or more recesses (111) are made in the wall section (103) between the two grooves (105, 106) before or after the insulating profile (2) is rolled onto the aluminum profile (2), so that a web (113) remains between each of the recesses (111).

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