JPH0432902B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a composite fire-resistant panel having a fire-resistant backing material affixed to the back side of the covering panel.

(Prior Art) Composite fire-resistant panels used for external walls of buildings, etc., have generally been produced by separately producing a fire-resistant panel and a covering panel, and then stacking the panels and bonding them together using an adhesive. However, this structure is
Ready-made fireproof panels have width limitations, and the bonding process and pre-processes such as processing and cleaning the fireproof panel surface before bonding are time-consuming. Therefore, recently, a composite fireproof panel has been proposed in which a slurry of refractory material is poured onto the back side of a shallow box-shaped covering panel and solidified to use it as a fireproof backing material.

(Problems to be Solved by the Invention) However, in this pour-in type, the back surface of the covering panel remains smooth;
Alternatively, a locking member made of a small piece or a long material with a U-shaped, L-shaped, or T-shaped cross section and a protruding surface facing the back surface is fixed to the covering panel by welding or the like, and a slurry-like refractory is attached. Many of them are made by pouring and solidifying the coating, but the former has the disadvantage that the covering panel easily separates from the fireproof backing material. In addition, in the case of using the latter locking member, the covering panel does not separate from the fireproof lining material due to the anchor effect of the locking member, but it requires a complicated process to attach the locking member. , distortion occurs in the covering panel at the position where the locking member is attached, especially if the covering panel is an enamel panel, uneven firing tends to occur at the position where the locking member is installed, and furthermore, due to repeated expansion and contraction of the covering panel due to cold and hot temperatures, It had a number of drawbacks, such as the coating panel peeling away from the fireproof backing.

This invention solves the above-mentioned conventional problems, and the covering panel and the fireproof backing material are firmly attached to each other.
The present invention aims to provide a composite fire-resistant panel that prevents peeling between the covering panel and the fire-resistant backing material due to cold or hot temperatures, does not cause local distortion on the outer surface of the covered panel, and can be produced with a simple manufacturing process and at low cost. It is something to do.

(Means for Solving the Problems) However, the composite fireproof panel of the present invention is a box in which a bent piece part is connected to the four circumferences of the main plate part, and an inner bent piece part is connected to the bent piece part. a covering panel having a shape, an adhesive layer having elasticity provided on the back surface of the main plate portion of the covering panel, and particles having a particle size of 1 mm to 5 mm bonded to the back surface of the main plate portion of the covering panel via the adhesive layer.
A composite refractory comprising inorganic granules of mm in diameter and a refractory backing material formed by filling and solidifying a refractory material mainly composed of an inorganic material on the adhesive layer to a depth at least such that the upper surface reaches the inner curved piece part. It is a panel.

The coated panel in this invention includes a copper plate,
Stainless steel plate, colored iron plate, aluminum plate, enameled aluminum plate, enameled iron plate,
Enameled aluminum-plated steel plates, synthetic resin-coated steel plates, synthetic resin plates, etc. can be used.

In this invention, the inorganic granules that adhere to the back surface of the main plate of the covering panel include ordinary sand, Cerben, crushed ceramic and magnetic scraps, ballast scraps, blast furnace slag, glass scraps, crushed stone scraps, etc. even if they come in contact with water. Various inorganic granules can be used that do not melt and deform, do not generate rust or gas, and maintain substantially their original shape for a long period of time. If a particle size of less than 1 mm is used as the inorganic granule, the amount of the granule protruding to be caught in the fireproof lining material layer is small, resulting in less anchoring effect, and if a particle size of 5 mm or more is used. Both of these are not preferable, since the amount of adhesive applied is relatively small compared to the above-mentioned large amount of overhang, and the adhesive strength with the main plate is inferior.
As the elastic adhesive layer for adhering the inorganic granules to the back surface of the main plate, various adhesives that are elastic after adhesion can be used, such as polyurethane-based and chloroprene rubber-based adhesives.

In addition, the fireproof materials mainly made of inorganic materials in this invention include mortar, mortar with aluminum powder added as a foaming agent, a mixture of mortar and wood wool, a mixture of mortar and asbestos, and various fireproof panels such as plaster. A slurry or kneaded clay made by adding water to the raw materials is used. It is more preferable to add inorganic particles having air bubbles, such as porous vermiculite or perlite, or hollow shirasu balloons, to the above-mentioned raw material for a fireproof panel, since this improves heat insulation and reduces weight.

(Function) In the composite fireproof panel of the present invention, as shown in FIG. 3, part of the inorganic granules 5 is buried in the 6 layers of adhesive, but other parts are exposed from the adhesive layer. As the fireproof material is filled and solidified around this exposed part, the solidified fireproof lining material surrounding the exposed part is bonded to the main plate part by the inorganic granules, which creates an anchor effect that connects the main plate part of the covering panel with the fireproof material. It is firmly attached to the backing material. In addition, the inwardly curved pieces of the covering panel engage with the hardened fireproof lining material, and the four peripheral edges of the covering panel and the fireproof lining material are reliably and firmly connected and integrated, so that the covering panel and the fireproof lining material are bonded together. Great strength.

In addition, since the inorganic granules can be dispersed and bonded almost evenly over the entire surface of the main plate, the joint between the covering panel and the fireproof lining material is distributed over the entire surface of the main plate, and when a locking member having an overhang is welded to the back of the main plate. This does not cause local distortions on the surface of the coated panel or uneven firing of the enamel panel.

Furthermore, since the inorganic granules are bonded to the back surface of the main plate through an elastic adhesive layer, even if there is a large difference in expansion coefficient between the covering panel and the fireproof backing material, the adhesive layer absorbs the difference in expansion and contraction. This prevents the covering panel from peeling off from the fireproof backing material due to repeated cold and hot weather.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

The covering panel 1 is made of a steel plate, has a box shape in which bent pieces 3 are connected to the four circumferences of the main plate part 2, and an inner folded piece 4 is connected to the bent pieces 3, and is enameled on both sides. There is. On the back surface 2a of the main plate portion 2, hard inorganic granules 5 such as Cerben or coarse silica sand are adhered with an adhesive 6 such as polyurethane. 7
Reference numeral 8 indicates a reinforcing core made of reinforcing steel, and 8 indicates a nut for attaching the frame to the core. Covered panel 1
A refractory lining material 10 is formed on the back side of the refractory lining material 10 by filling and solidifying a slurry-like refractory material 9 mainly made of an inorganic material, and the core bar 7 is also held integrally within this refractory lining material 10.

An example of the manufacturing process of the composite fireproof panel 11 having the above structure will be explained with reference to FIGS.
As shown in FIG.
Then, spray gun 12 or roller, brush,
Apply the adhesive 6 with a spatula (none of which is shown), and before the adhesive hardens, use a spreader 13 or manually as shown in FIG.
The inorganic granules 5 are almost evenly spread on the adhesive layer. After the adhesive 6 has solidified, the covering panel 1 is set in a frame 16 consisting of a bottom plate 14 and side frames 15 as shown in FIG. The composite fireproof panel 11 is obtained by pouring it into a frame 16 and leaving it or curing it to solidify.

In the obtained composite fireproof panel 11, as shown in FIG. 3, the inorganic granules 5 exposed from the 6 layers of adhesive are surrounded by the solidified fireproof backing material 10, and the granules cover the 6 layers of elastic adhesive. Main plate part 2 through
and the fireproof backing material 10 are connected.

The present invention is not limited to the above-mentioned embodiments. For example, the refractory material 9 can be made by pouring or by pouring.
The back side of the covering panel 1 may be filled by stamping.

(Effects of the Invention) As explained above, according to the present invention, the covering panel and the fireproof lining material are firmly fixed to each other, and peeling of the covering panel and the fireproof lining material due to cold or hot temperatures is prevented, and the surface of the covering panel is An excellent composite fire-resistant panel is obtained that does not cause local distortion. In addition, since it is only necessary to fill and solidify the refractory material after a simple process of applying adhesive to the back of the covered panel and dispersing inorganic granules, the manufacturing process of composite fire-resistant panels is simplified and costs are reduced. .

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of a composite fireproof panel showing an embodiment of the present invention, Fig. 2 is a perspective view thereof, Fig. 3 is a partial enlarged sectional view of section A in Fig. 1, and Figs. 4 a to c.
2 is an explanatory diagram of the manufacturing process of the composite fireproof panel shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Covering panel, 2... Main plate part, 2a... Back surface, 3... Bent piece part, 4... Inner bending piece part, 5... Inorganic granule, 6... Adhesive, 9... Fireproofing Material, 10
...Fireproof backing material, 11...Composite fireproof panel.

Claims (1)

[Claims] 1 A box-shaped covering panel in which bending pieces are connected to the four circumferences of the main plate, and an inner bending piece is connected to the bending pieces, and an elastic panel provided on the back side of the main plate of the covering panel. an adhesive layer having an adhesive layer, inorganic granules having a particle size of 1 to 5 mm adhered to the back surface of the main plate portion of the covering panel via the adhesive layer, and a fireproof material mainly composed of an inorganic material on the adhesive layer. and a fireproof backing material made by filling and solidifying to a depth where at least the upper surface reaches the inner curved piece part.