JPS58143084A - Fire resistant window and window glass thereof - Google Patents

Abstract

1. A window having an improved capacity for resisting fire, formed of at least one pane of silicate glass and a chassis (9) in which the pane of silicate glass is mounted with a layer (1) of mastic resistant to heat and of increased thermal conductivity between at least one surface of the pane and an associated metal frame (10, 11), characterised in that the heat-conducting layer (1) between the surface of the glass (8, 18, 28) and the frame (10, 11) is of a mixture of a polymer resistant to high temperatures having permanent plasticity or permanent elasticity and grains of a metal which is a good heat conductor or of a semi-conductor having a grain size from 0.05 to 1.5 mm.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a window with increased heat resistance, the chassis of which is made of silicate glass and glass, such as glass, having a mast and a silica glass window glass gripped through a layer. The present invention relates to a window, the mast of which is heat resistant with increased thermal conductivity between at least one surface of the lath and a metal retaining frame associated therewith.

In such a window suitable for fire resistance, as described in FR 2 232 666, the frame receives and transfers the heat taken up to the edges of the pane.
Doing so allows the pane to be heated virtually simultaneously over its entire surface, including the edges. Since the temperature gradient between the center and the edges is thus reduced, spreading forces due to temperature differences that normally cause glass breakage do not occur.

It has been found that although this known configuration has an increased fire resistance, the increase in the fire resistance period is not sufficient to allow the window to be classified in one of the classes belonging to fire resistance according to the DIN 4102 standard. ing. As a result, other chassis: chassis that permanently free the edges of the window glass (FR 2314993 and 2282033)
It has been proposed to use chassis (FR 2 366 434) or chassis (FR 2 366 434) which open the edges only at the moment of exposure, so that the heating at the edges is comparable to that in the central zone of the pane.

Although such windows do have sufficient fire-retardant properties for classification according to the KDIN 4102 standard, they require a very complex chassis.

It is also possible to attach a lath window glass to a metal chassis with a heat-resistant layer such as asbestos interposed therebetween, and provide a radiant heat absorbing enamel layer on the surface along the edge of the window glass, which layer is preferably attached to the frame. Fire-resistant windows are also known (Belgian Patent Stripe No. 8 g 6277), which extend over the central zone of the window glass and are not covered by a frame.
This enamel layer must ensure increased heat absorption at the edges and thus a reduction in the temperature gradient between the edges and the middle. The disadvantage of this configuration is that each window after cutting must be The enamel layer must be received at the periphery,
The point is that it must be heat-treated and heated later depending on the case.

The invention makes it possible to use the chassis of the known tiles and does not require special measures for rounding, which guarantees the desired heating of the edges of the glazing, meeting the requirements of the DIN 4102 standard. It is intended to provide windows with an increased fire resistance period that satisfies.

In the present invention, the heat conductive layer provided between the window lath and the metal frame associated therewith is made of a heat-resistant plastic material having durable plasticity or durable elasticity, and a particle size of about 0.05 to
It consists of a mixture with a granular composition of a metal or semiconductor that is a good thermal conductor. Advantageously, the outer surface of the frame is provided with a heat-absorbing coating.

Surprisingly, it has been found that substantial improvements in fire resistance can be achieved by relatively simple measures according to the invention.
The measures required according to the invention can be used in practice for all constructions of metal chassis of known types and, if necessary, for wooden chassis. It is not necessary to additionally process the glass pane to remove cutting defects that can become starting points for breakage or at least slightly shape the edges, thus resulting in a fire-resistant pane. can also be created in a simple way.

It is particularly preferred that the intervening thermally conductive layer is placed in place between the chassis and the glazing in the form of a preformed molding strip, and is applied to the glazing as an ordinary mast, clasp, or glazing by means of a frame. be pressed against. These molded strips can be of any suitable cross-sectional shape. Furthermore, adhesives are preferably applied to those glazing-adjacent surfaces and/or frame-adjacent surfaces in order to maintain a reliable contact between the adjoining surfaces when encountering a fire and thus a good heat transfer to the glazing. Haya 9 Heat-resistant and thermally conductive adhesive can be attached.

The present invention will be explained in more detail below with reference to the drawings.

The thermally conductive layer between the glazing and its associated frame can be in the form of a highly viscous material, which is introduced into the space separating the framed glazing, for example using an extrusion tool or a suitable injector. can do. However, the molded strip 1 with durable elasticity and L-shaped or U-shaped right-angled cross section as shown in Figures 1 to 3,
It is preferable to prepare 2 or 3 in advance.

Hermetic viscous thermally conductive material or preformed strip.

! 1.2.3 consists essentially of a mixture of a single layer of durable elastic or plastic heat-resistant material based on silicone or foam and 0.5 to 4 parts by weight of a metallic particulate component.

Approximately 2.5 to 10 ratio of metallic particulate component and plastic material
Mixing in weight ratios makes it possible to obtain optimal results in terms of plasticity or elasticity of the sealing material and heat transfer.

As a heat-resistant material with durable elasticity or plasticity, the product prepared from Organo'/Cxxy EGO-8ILKCN-BI from WGO-Dlaktstoffv@rk*, IZNCHEN was satisfactory. Weesper f7 no PIREN as a plastic material for dense thermal conductive materials
NATORWERK Mulad Hagan's trade name PYRO8IL WEISS13 11 7915
3) Commercially available heat-resistant mast, Rigaya) was completed.

Granular metal products with high thermal conductivity, especially steel or aluminum, can be used as the thermally conductive component in the sealing material, in particular steel or aluminium; as a general rule, aluminum is preferred for cost reasons. Granular products have a grain size of 0.05. It should consist of grains with a grain size of ~1.5-, the optimum value being achieved for grains with a grain size of 0.3-0.8.

Instead of a granular product of metal, which is a good thermal conductor, it is possible to use a granular product of semiconductor (for example graphite), which has approximately the same particle size but is a good thermal conductor.

In the desired field of use, a plastic material which remains plastic and can be handled as a mixture or during the manufacture of the window or which can be extruded into a strip with the desired orthogonal cross-section and then in the form of an elastic molded strip. Another product is used that cures or polymerizes to the point where it can be applied.

As shown in FIG. 1, the thermally conductive sealing strip 1 consists of a central core 4 which may be provided with a thin adhesive layer 5 on the two surfaces in contact with the window pane and the frame. Adhesives used for this purpose should also be prepared from heat-resistant silicones,
The thickness of this layer, which should not lose its adhesive strength and thermal conductivity under the action of heat, should be as small as possible, preferably only a few microns, so that from the frame to the sealing strip and The window should then interrupt the heat transfer from the sealing strip to the lath as little as possible.

Figures 4 to 7 show several examples of windows according to the invention, each showing a cross-section of the lower part of the window chassis.

It will be appreciated that the window chassis has the same structure as shown in the figures over its entire periphery.

A window according to the invention in its simplest construction, consisting of a single pane of glass, is shown in FIG.

The window glass 4 is a positive, especially borosilicate glass with a low coefficient of thermal expansion. When using such a borosilicate glass window glass, there is no need for a treatment or strengthening known as edge reinforcement as described in French Painting Patent No. 2,264,784. However, it is necessary to ensure that the strength of the glass edges has a sufficiently high value by shaping the edges. Bending resistance of window glass is DIN52303
Sufficient edge strength has been obtained with borosilicate glass having a strength of about 50 Roux according to the standard. It is also possible to provide reinforcement to borosilicate glass panes in order to advantageously increase the edge strength. It is also possible to use a thermally strengthened float glass window glass as the window glass 8 instead of borosilicate glass. Due to the high coefficient of thermal expansion of float glass, in this case the edge strength, measured according to the DIN 52303 standard, should be at least about 100 Roux.

The window chassis is shown as a simple flat steel member for simplicity, with the base chassis 79 having the form of a steel forming member which may be provided as a rectangular tube or other suitable cross-section forming member. frame member 10.11. Instead of a steel profile, the base chassis 9 can also be made of other materials, for example wood. Preferably, the frame member disposed on the side exposed to at least a little heat is metal. Frame member 10 on one side
．． 11 and the window on the other side is inserted an elongated sealing strip l having a thickness of at least two thicknesses. This sealing strip 10, which corresponds to the structure of the molded strip shown in FIG.
Press it against the window glass at step 11. An intermediate layer 12 of asbestos is inserted between the window glass 8 and the steel molded member 90.

Instead of using a sealing strip 1 of rectangular orthogonal cross section U
It is particularly advantageous to use a sealing strip 3 (FIG. 3) with a shaped cross-section. This sealing strip 3 is preferably applied to the edges of the window lath during post-manufacturing conditioning of the window, i.e. after edge treatment or strengthening, if necessary. It thus acts to protect the edges during transport and installation of the glazing, thus preventing possible deterioration that would reduce edge strength and therefore fire resistance.

A thermal radiation absorbing layer 14 is provided on the outer surfaces of the two frame members 10.11. As the thermal radiation absorbing layer 14 it is possible, for example, to use a thermal radiation absorbing paint coating which has an increased thermal radiation absorbing power on the one hand and an increased heat resistance on the other hand. Such a coating layer retains complete thermal radiation absorption properties during the fire test, at least for the first 10 minutes after the start of the fire test. 8oei・t in Dusseldorf
yBBL4shn@r Laokfablik has the trade name “Absorptionmlaekfarb*No, 3
Products marketed as ``494 Black'' and ``3621 Ramp*ziILk Dark Gray'' gave satisfaction. An aluminum frame member, or an aluminum-coated molded member placed in front of a steel frame member, comprising: Tunes with dark anodized aluminum on their outer surface also have adequate heat absorption performance.

In the window embodiment shown in FIG.
The frame part 10.11, whose outer surface is covered with a thermal radiation-absorbing coating 14 of "OZINK", and the base chassis 9 are constructed exactly as in FIG. It has been replaced by a double insulating glazing consisting of two panes 18 of thermally strengthened float glass.

The intermediate glazing 19 of the double glazing installed between the panes 18 is a molded steel part. The insulating glazing is made airtight in a known manner with a sealing layer 20 and an intermediate layer 12 of asbestos.
is installed on the chassis.

A thermally conductive sealing strip 1 is arranged between each glass pane 18 and frame member 10.11. This window configuration reaches a fire rating known as G30 during fire testing.

FIG. 6 shows a heat-strengthened and asymmetrically mounted 2
1 shows a fire-resistant window comprising an insulating pane of glass 18; This asymmetrical configuration is such that the window resists the action of fire on one side, ie the side of the frame 11, but the action of fire coming from the other side will cause the pane to break.

Similarly, since the window glass is flexibly attached to the chassis from the fire receiving side, distortion or warping of the glass plate due to the action of heat does not necessarily cause the glass plate to break. On the side that is about to be exposed to fire, a thermal radiation absorbing IAMPOZINK coating 14 is applied to the steel frame member 11, and a thermally conductive sealing strip 11 is inserted between the 7V-5 member 11 and the window glass. On the opposite side, ie, the side not exposed to fire, the frame member 1O does not have any heat-absorbing coating, and there is a non-combustible space between the frame member 10 and the window pane, at least this intermediate space between the frame member 1O and the window pane. Two sealing strips 22 of a synthetic material, for example asbestos or other similar type of material, are arranged and these sealing strips 2, 20
When the layer 23, which has a layer 23 of an expandable material that expands under the action of heat, such as sodium silicate, expands under the action of heat,
It ensures that by its expansion the 7 palm seals itself well in places where the distance between the frame member and the window pane increases. On the other hand, this intumescent material layer is sufficiently flexible and sufficiently heat resistant to avoid problematic transmission of compressive forces from the frame of the glazing.

In the embodiment shown in FIG. 7, the chassis 7 is again of symmetrical construction, consisting of a molded chassis member 9 and two frame members 10, 11 whose outer surfaces are provided with a coating 14 for absorbing radiant heat. The window is mounted to the chassis with a thermally conductive sealing strip on each side. This window glass comprises three silicic acid lath glass plates 26, 27, 28, the two glass plates 26, 27 being made of, for example, tempered float glass, which are separated by an intermediate glass 29 and a sealing layer 30. and the space separating the two panes is filled with a water-based saline material 31. This type of double-layer glazing filled with refried material is described, for example, in Japanese Patent Application Publication Nos. 082713849 and 3037015. It has been stolen by Rified Materials 3.
This double layer window glass filled with 1 is filled with another intermediate layer (
- by means of a shield 32 and another sealing layer 33, it is connected to another pane of glass, for example a silicate glass, for example a thermally strengthened float glass. This pane 28, placed in front of the dal-filled double-pane pane and separated by an air space, resists the fire for at least 30 minutes and acts as a thermal screen for the dal-filled double-pane pane, so that r,
Heat does not act on the window glass until much later.
Windows with this configuration have fire resistance class F according to DIN 4102i rating.
requirements and therefore can be used as class F6G and R90 windows.

[Brief explanation of drawings]

v, Figure 1 is a partially cut-away perspective view of a shaped strip that can be used as a thermally conductive intermediate layer; Figure 2 is a partially cut-away perspective view of a thermally conductive figure-5 shaped strip; Figure 3 is a heat conductive FIG. 4 is a partially cut-away, two-dimensional view of a single-layer glazing window according to the invention; FIG. 5 is a double-layer glazing according to the invention. Fig. 6 is a partially cut-away and two-dimensional view of an asymmetrical window with double-paned glass according to the invention; 1 is a partially cut-away perspective view of a window particularly suitable for fire protection comprising a double pane of glass and a simple additional pane of glass; FIG. 1-3: Thermal conductive layer (molded strip), 8°18.2
8: Laminate window, 9: Base chassis, 10° 11: Frame member, 12: Intermediate asbestos layer, 14 Bi-heat absorbing coating, 31:
Dal. 2. Procedural amendment (method) March 7-2, 1980 - Director-General of the Japan Patent Office Kazuo Wakasugi 1, Indication of the case 1982 Patent Application No. 179197 2, Title of the invention: Fire resistance and its window glass 3; Relationship with the case of the person making the amendment Name of the patent applicant: Saint-Gobain Bittsuger 4, Agent 6 Subject of amendment (1) "Applicant's representative" column in the application (2) Power of attorney (3) Specification (4) Drawing 7, contents of amendments (1), (2) as attached (3) Engraving of specification (no change in content) (4) Engraving of drawing (change in content) None) 8 List of attached documents (1) Application for correction (1 copy) (2) Power of attorney and translation (1 copy each) (31 Engraved specification, 1 copy (4) Engraved drawings
1 letter

Claims (1)

[Scope of Claims] 1. At least one silicate glass windowpane and 7 palms. 9. The chassis grips the windowpane through a mastic layer, and the mastic layer is heat resistant. and a high thermal conductivity between at least one surface of the pane and an associated metal frame member, wherein the thermally conductive layer between the surface of the window pane and the frame member comprises: A window characterized in that it is a mixture of a heat-resistant polymer having durable plasticity or durable elasticity and a granular product which is a thermally good conductor or semiconductor with a particle size of 0.05 to 1.5 square meters. 2. The window according to claim 1, wherein the granular metal product has a particle size of 0.3 to 0.8 square centimeters. 3. The window according to claim 1 or 2, wherein the granular product is five grains of aluminum. 4. The window according to claim 1 or 2, wherein the granular product is graphite granules. 5. The mixture used as a thermally conductive layer comprises 0.5 to 4 parts by weight of a granular product and a heat-resistant polymer 11 lid, according to any one of claims 1 to 4. window. 6. A window according to claim 1, wherein the mixture used as a thermally conductive layer comprises 2 to 3 parts by weight of granular product and parts by weight of heat resistant/IJ mum. 7. Window according to any one of claims 1 to 6, in which a polymer based on organopolysiloxane is used as the thermally conductive mixture. 8. The window according to any one of claims 1 to 7, wherein the outer surface of the frame member is coated with a radiant heat absorbing film. 9. The window according to claim 8, wherein a heat-resistant heat-absorbing enamel paint is used as the radiant heat-absorbing film for the frame member. 10. The window of claim 8, wherein the radiant heat absorbing film is a dark electrolytic aluminum oxide layer. 11. A window according to any one of claims 1 to 10JJi+, wherein a preformed strip is used as the thermally conductive layer. 12. The window according to claim 11, wherein said preformed strip has an L-shaped or U-shaped cross section. 13. The window according to claim 11, wherein a thermally conductive and heat-resistant adhesive layer is provided on the surface of the IJ that supports the window glass and the frame member. 14. The window according to any one of claims 1 to 13, wherein the sheet glass of the window glass is thermally strengthened silicate glass. 15. The window according to any one of claims 1 to 13, wherein the sheet glass of the window glass is borosilicate glass. 16. Range of requirements 1 to 15 for a double-layer window glass comprising a double-layer window glass filled with salt material and a simple plate glass with an air space separating the double-layer window glass. Any window listed up to the product. 17. A thermally conductive strip preformed on the edge of a window glass over its entire periphery. The silicic acid is made by blending a heat-resistant polymer with durable elasticity with a granular product made of a metal material or semiconductor that is a good conductor of heat and has a particle size of 0.05 to 1.5. lath window glass. 18. Has a small coefficient of thermal expansion and the strength of the end is DIN
52303 At least about 5O as measured in accordance with the standard
Claim 17, which is borosilicate glass with Nru2
Window glass as described in section. 19, thermally strengthened and edge strength DIN 523
At least about 100 Roux measured according to the 03 standard
The window glass according to claim 17, which is a float glass.