JP3352053B2 - Manufacturing method of fireproof insulation panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a fire-resistant heat insulating panel, and more particularly, to forming a mountain while increasing the appearance of a fire-resistant heat insulating panel by arranging a large number of triangular peaks on a metal plate. The present invention relates to a technique for increasing the bonding strength between a metal plate and a refractory core material without increasing the amount of adhesive.

[0002]

2. Description of the Related Art In recent years, a fire-resistant insulation panel in which a fiber direction is oriented between, for example, a thickness direction of a panel between opposed metal plates and a refractory core material is adhered with an adhesive is used. In addition, the compressive strength in the thickness direction of the panel is increased by improving the properties and the like, and the fiber direction of the refractory core material is oriented, for example, in the thickness direction of the panel.

However, such a fire-resistant and heat-insulating panel has a flat surface, has no change, and is difficult to enhance its appearance. In view of this, a fire-resistant insulation panel was proposed, in which triangular, low-height peaks are juxtaposed on a metal plate, and the appearance of the fire-resistant insulation panel is effectively changed using the reflection of light at many peaks. Have been.

[0004]

By the way, a fiber plate of a refractory core material is adhered to a metal plate having such triangular and low peaks juxtaposed, for example, with the fiber direction oriented in the thickness direction of the panel. In this case, there is a problem that it is difficult to perform good adhesion between the back surface of the mountain portion and the refractory core material. Such poor adhesion is due to the fact that the adhesive penetrates deeply between the refractory core materials on the back surface of the mountain and the effective amount of adhesive is insufficient. It may be unfamiliar. Therefore, it is conceivable to increase the amount of the adhesive applied to increase the effective amount of the adhesive and to firmly bond the fibers that are not well-adapted to the rear surface of the mountain portion, but this increases the cost.

The present invention has been made in view of such a problem, and a fire-resistant core material made of inorganic fiber is provided while a plurality of triangular peaks are juxtaposed on a metal plate to enhance the appearance of the fire-resistant insulation panel. It is an object of the present invention to provide a method for manufacturing a fire-resistant and heat-insulating panel that can be firmly bonded without increasing the amount of adhesive to the back surface of a mountain portion formed on a metal plate.

[0006]

According to the first aspect of the present invention, an adhesive 5 is applied to the inner surfaces of the metal plates 1 and 2 facing each other, and a refractory core material 3 made of inorganic fiber is bonded to the metal plates 1 and 2 so as to adhere to each other. A method for manufacturing a fire-resistant insulation panel in which a refractory core material 3 is filled in
A large number of triangular peaks 4 are juxtaposed on at least one metal plate 1, and a refractory core material on the side of the metal plate 1 on which the peaks 4 are formed.
3 is characterized by loosening the fibers. This
According to such a configuration, the ends of the fibers are loosened,
Each fiber is familiar on the back side of 4 and 5 layers of adhesive are on the back side of the mountain 4
Only the refractory core material 3
Can be bonded well without increasing the amount of the adhesive 5.
Wear.

[0007]

According to a second aspect of the present invention, the fiber direction of the inorganic fiber refractory core material 3 is oriented in the thickness direction of the panel. According to such a configuration, no gap is generated between the back surface of the crest portion 4 and the refractory core material 3 in a range where the fiber oriented in the thickness direction of the panel is loosened, and the adhesive 5 The adhesive strength can be increased without increasing the application amount.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1A is a schematic sectional view of a fire-resistant and heat-insulating panel A, and FIG.

The fire-resistant and heat-insulating panel A is mainly used as a wall material, and has a front metal plate 1 and a rear metal plate 2.
An adhesive 5 is applied to the two metal plates 1 and 2, and an inorganic fiber such as rock wool is bonded by pressing with a press device with the fiber direction oriented in the thickness direction of the panel. , Cut into appropriate lengths. The metal plate 1 and the metal plate 2 are bent at one end of the fire-resistant and heat-insulating panel A to form the fitting concave portion 6 and the fitting convex portion 7, and are connected to each other by interposing the packing P so that the concave and convex fit. I can do it.

A recess 13 for a drill screw is formed in the surface of the building material on the side of the fitting recess 6. A cover 9 extends from the surface of the building material on the side of the fitting projection 7 so as to cover the recess 13 for drill screws.

The metal plate 1 on the front side of the building material preferably has a gloss, but may have a semi-gloss or matte finish that can reflect sunlight. or,
An artificial light source may be used. On the metal plate 1, sharp straight ridge lines L are formed in the horizontal direction, and a large number of triangular peaks 4 having reflection surfaces S, S formed on both sides of the ridge lines L are arranged side by side substantially parallel to the horizontal direction. ing. Here, the pitch (ridge pitch) between the ridge lines L, L is about 6 to 60 mm, and the depth of the valley is about 0.5 to 3 mm. In a preferred embodiment, the pitch between the ridge lines L, L is about 24 mm and the depth of the valley is about 0.8 m.
m. The angle of the top of the peak 4 is preferably an obtuse angle.

According to this structure, the refractory core material 3 made of rock wool, which is filled between the metal plate 1 and the metal plate 2 with an adhesive, fills the ridge line L at the peak 4 of the metal plate 1. Prevent movement in the direction perpendicular to the direction, and increase the holding force of the refractory core material 3. Also, by forming a large number of peaks 4, it is possible to increase the contact area of the synthetic resin foam with the refractory core 3, thereby increasing the adhesive strength.

In the metal plate 1 of the fireproof and heat-insulating panel A constructed as an exterior wall material, every other reflecting surfaces Sa..., Sb. The degree of light reflection becomes equal, and the reflection surface Sa, which appears to be shining due to the large amount of reflected light to the viewer, and the reflection surface Sb, which appears dark due to the small amount of reflected light, have sharp stripe patterns. You can see.

Such a light and dark stripe pattern changes variously with the increase and decrease of the sunlight, the change of the position of the sun, and the change of the position of the person. It greatly enhances the appearance.

Further, a ridge 4 is formed on the entire surface of the metal plate 1 at a position other than the fitting concave portion 6 and the fitting convex portion 7 so that the fitting concave portion 6 and the fitting convex portion 7 are unevenly fitted. When connecting the metal building material, the bottom joint 8 is formed at the fitting portion of the unevenness.
A further dark portion is formed at the bottom joint 8.

FIG. 4 shows a block diagram of an apparatus for foaming the adhesive 5. The adhesive 5 is, for example, MLT183
[E-Tech Co., Ltd.] is used. The screw pump 16 sends out the adhesive 5 from the tank 15 at a predetermined amount per unit time, and a factory for controlling, for example, nitrogen gas or, for example, a pneumatic cylinder. Gas such as dry air used in the above is mixed into the adhesive 5, and the adhesive 5 and the dry air are stirred and mixed by the mixer 10 driven by the motor 11 to foam the adhesive 5. It is to let.

As shown in FIG. 5, for example, the mixer 10 is provided with a rotor 12 driven and rotated by a motor 11 in casings 19a and 19b which are referred to as a disper and are fitted in a coupling shape. There are holes 20 ...
Are opened, agitated by the rotation of the rotor 12, foamed, and discharged from the application nozzle 14 to the back surface of the metal plate 1. The application nozzle 14 is a hand-held type.
There are various forms of such a stirring and foaming apparatus.

As described above, the refractory core material 3 is bonded by applying the foamed adhesive 5 containing dry gas to the metal plate 1 having the peaks 4 arranged side by side. A sufficient amount of the adhesive 5 can be interposed between the back surface of the portion 4 and the refractory core 3, and the adhesive strength can be increased without increasing the amount of the adhesive 5 applied.

By the way, the fibers of the surface layer of the refractory core material 3 on the side of the metal plate 1 on which the peaks 4 are formed are loosened within a range of, for example, 1 mm (indicated by X in FIG. 1A). In this manner, the ends of the fibers are loosened, and the respective fibers are adapted to the back surface of the crests 4, and only the five adhesive layers are not present on the back surface of the crests 4. The refractory core material 3 having the fiber direction oriented in the thickness direction can be satisfactorily bonded without increasing the adhesive 5.

Incidentally, the connection form of the fire-resistant and heat-insulating panel A is as follows.
It may be changed as in the embodiment shown in FIG.

[0022]

[Table 1]

In Table 1, 1) is a numerical value measured without the nozzle, 2) is a liquid temperature of 30 ° C., and 4 rotors are 6
Numerical values measured at 0 rotations, 3) is T. I value = (6rp
m viscosity / 60 rpm viscosity).

Thus, it was found that a uniform foaming state could be obtained if the foaming specific gravity was up to 0.50.

In the embodiment, the gas is mixed into the adhesive 5 and agitated for foaming. However, the foaming may be performed using a foaming agent.

[0026]

According to the first aspect of the present invention, there is provided a method for manufacturing a fire-resistant and heat-insulating panel in which an adhesive is applied to the inner surfaces of metal plates facing each other, a fire-resistant core material made of inorganic fibers is adhered, and the fire-resistant core material is filled between the metal plates. A method comprising: arranging a large number of triangular peaks on at least one metal plate side by side;
The fibers of the refractory core material are loosened, so the ends of the fibers are loosened.
Each fiber fits into the back of the mountain and touches the back of the mountain.
There is no adhesive layer alone and a fireproof core on the back of the mountain
Good adhesion of materials without increasing the amount of adhesive
There is an advantage that can be.

[0027]

In the second aspect , the fiber direction of the refractory core material made of inorganic fibers is oriented in the thickness direction of the panel.
2. In addition to the effect of claim 1, there is no gap between the back surface of the crest and the refractory core material in the area where the fibers oriented in the thickness direction of the panel are loosened, and the amount of adhesive applied There is an advantage that the adhesive strength can be increased without increasing the adhesive strength.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a fire-resistant heat-insulating panel obtained by a method for manufacturing a fire-resistant heat-insulating panel according to the present invention, in which (a) is a schematic view and (b) is a schematic cut-away perspective view showing a connection.

FIG. 2A is a schematic sectional view of the same, and FIG. 2B is a plan view.

FIG. 3 is a schematic sectional view showing a construction state of the above.

FIG. 4 is a block diagram of an apparatus for foaming an adhesive according to the first embodiment.

FIG. 5 is an exploded perspective view of a main part of the above foaming apparatus.

FIG. 6 is a perspective view of a coating nozzle of the same.

FIG. 7 is an explanatory view showing an applied state of the adhesive according to the embodiment.

FIG. 8 is a perspective view showing a connection state of the fire-resistant and heat-insulating panel of another embodiment of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal plate 2 Metal plate 3 Fireproof core material 4 Mountain part

Claims (2)

(57) [Claims] 1. A method for producing a fire-resistant and heat-insulating panel comprising: applying an adhesive to inner surfaces of opposed metal plates, bonding a refractory core material made of inorganic fibers, and filling the refractory core material between the metal plates. A large number of triangular peaks are juxtaposed on one metal plate, and the fibers of the refractory core material on the side of the metal plate on which the peaks are formed.
A method for producing a fire-resistant and heat-insulating panel , characterized by unraveling . 2. The fiber direction of the refractory core material comprising inorganic fibers
Claims: Orientation in the thickness direction of the panel.
2. The method for producing a fire-resistant heat-insulating panel according to 1 .