JPH06212716A - Fireproof partitioning panel core material - Google Patents

Abstract

PURPOSE:To provide a fireproof partitioning panel core material which is light and proof against heating for a long time by combining a rockwool formed plate being high in heat insulation property and a fireproof thermal insulating material holding a great quantity of crystallization water. CONSTITUTION:Rockwool formed plates 1a, 1b are provided with many recesses, and a fireproof thermal insulating material 2a having a protrusion fitting in the recess is set between the rockwool formed plates 1a, 1b with the protrusion fitted in the recess, and the mutual combination of the plates 1a, 1b is strengthened through the fireproof thermal insulating material 2a. In addition, heat caused by heating is absorbed by the evaporation of a great quantity of crystallization water contained in the fireproof thermal insulating material 2a to prevent temperature rising and simultaneously to control temperature rising on a side opposite to a heating side in cooperation with the thermal insulating effect of the rockwool formed plates 1a, 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight fireproof panel core material that can withstand heating for a long time, and is mainly used as a core material for steel plate fireproof partition panels.

[0002]

2. Description of the Related Art The fire resistance performance required for each part of a building, which is required to have a fire resistant structure in the Building Standard Law, is stipulated in the law, but a partition wall also requires one hour or two hours. It is specified to withstand heating. There are various wet types such as those that are reinforced concrete and have a thickness of 10 cm or more to comply with this regulation, but as dry type, gypsum board is laminated, cement extrusion molded plate, water supply material dispersed inside There are a cement board mixed in, and a relatively lightweight cellular gypsum board in which air bubbles are present inside the gypsum board.
However, all of them are heavy and weigh more than 50-60 kg per square meter, and even a relatively light aerated gypsum board weighs about 40 kg per square meter, making it difficult to construct, and the movable partition has a large weight. Is a big obstacle when moving. Various efforts have been made to reduce this weight, and there are lightweight ones made of steel sheet and inorganic fiber, but the one hour fire resistance is the limit and the two hours heat resistance such as fire resistance is endured. There was nothing to be done. However, there is a lightweight fireproof partition panel core material that was invented and filed by the same person in 1992 as the patent application of the present application and can withstand long-time heating.

[0003]

The core material for the fireproof partition panel, which was filed by the same person as the patent application in 1992, is thin and lightweight and has heat insulation performance, but even if the thickness of the panel is increased, the weight is even higher. It is often desired to have a long-term fireproof partition panel core material with heat insulation performance. Therefore, the problem to be solved by the present invention is to provide a fire-resistant partition panel core material that is lightweight, can withstand heating for a long time, and has a higher heat insulating property.

[0004]

In order to solve the above-mentioned problems, the present invention combines a rockwool molding plate having high heat insulation performance with a fire-resistant heat insulating material holding a large amount of crystal water, and the heat insulation performance is mainly rockwool molding. The fire resistance of the board is taken care of mainly by the fire insulating material, and by making good use of both of these characteristics, a core material for partition panels that is lightweight, has high strength, has a large heat insulating property, and can withstand long-term heating can be realized.

That is, in the constitution of only the rock wool molded plate, the shrinkage due to heat is large, and it is necessary to stack several molded plates in order to obtain the required fire resistance performance. Since it is easily peeled off, it is difficult to increase the strength of the adhesive portion, and such a structure has large deformation by heat and has low strength. Also,
A structure consisting only of a refractory heat insulating material that holds a large amount of crystal water has a large weight and a low heat insulating performance. In the present invention, the rockwool molding plate is provided with a large number of recesses, and a fireproof heat insulating material having a projection that fits into the recesses is present between the rockwool molding plates to connect the rockwool molding plates to each other. It strengthens and absorbs heat due to heating due to evaporation of a large amount of crystal water of this refractory heat insulating material, preventing temperature rise and at the same time suppressing the temperature rise on the non-heating side together with the heat insulating effect of the rock wool molded plate. Further, since the refractory heat insulating material used for this has a small shrinkage due to heat, it supports the rock wool molded plate during heating, and as a whole reduces the deformation during heating of the core material. The fireproof heat insulation performance of this panel can be made to have the required specifications by adjusting the thickness of the rockwool molding plate and the thickness of the fireproof heat insulating material to be used.

[0006]

[Function] The fire-resistant partition panel core material configured as described above is arranged alternately and firmly bonded under normal use conditions by a combination of rock wool molded boards with high sound absorbing performance and fire resistant heat insulating material with high sound insulating performance. It has high heat insulation performance, high sound insulation performance, and high strength, but it works as a partition panel, but when it is heated from one side due to a fire, the high insulation performance of the rock wool molded plate initially causes a large heat resistance and the inside of the partition panel. Although the temperature rise is suppressed, the internal temperature gradually rises with the passage of time. When the internal temperature rises above a certain level, the crystal water in the refractory heat insulating material is released little by little, and the temperature rise is suppressed by the heat absorption caused by the evaporation. Since the refractory insulation is placed inside, the heat consumed during evaporation of the crystal water must flow from the heating side through the rockwool layer with high thermal resistance, so evaporation takes time, and as a result, that part takes a long time. The temperature rise is suppressed over. However, the temperature of the rear surface of the partition panel suddenly rises because the crystal water is completely evaporated and the temperature rises quickly. In JIS, the elapse of heating time and the upper limit of backside temperature are stipulated, but in the panel of the present invention, the backside temperature rising time is adjusted by an appropriate combination of a rockwool molded plate and a fireproof heat insulating material to achieve the most efficiency. It can show good fire resistance.

[0007]

FIG. 1 is a sectional view taken along the line A--A in FIG. 2 showing an embodiment of the present invention, in which 1a and 1b are rock wool molding plates and 2a.
Is a fireproof insulation.

FIG. 3 shows one or more sheets in which a plurality of protrusions having the same or different heights are provided on one side or both sides and an adhesive is applied to the surface having the protrusions in the case of manufacturing the core material of the present fireproof partition panel. The fire-resistant heat-insulating molding material and one or more rockwool molding boards are alternately laminated, and the projections of the fire-resistant heat-insulating molding material are pressed into the rockwool molding board, and then the adhesive is hardened to integrate them. 1 shows a rock wool molded plate, 2a is a fireproof heat insulating material having protrusions on both sides, 2b is a fireproof heat insulating material having protrusions on one surface, and B is an adhesive coating. Surfaces 4 are pressure plates of the pressure molding press device. According to this method, the panel core material of the present invention can be manufactured very easily.

FIG. 4 shows an example of another method of manufacturing the core material of the present fire-resistant partition panel, in which a large number of recesses are formed on one or both sides of a plurality of rock wool molding plates, and the spaces between the molding plates including the recesses are formed. The slurry 3 of the refractory heat insulating material kneaded with water is filled. First, the slurry 3 of the refractory heat insulating material is uniformly supplied onto the rock wool molding plate 1b, and then the rock wool molding plate 1a is arranged thereon. Suppress from the top,
Make sure that the slurry also enters the dent. On this occasion,
Since the air in the recess is discharged to the outside through the inside of the rockwool molding plate, the slurry is also filled in the recess.
Hereafter, the same operation is repeated as many times as necessary, and then it is cured and dried to form an integral composite laminated plate. According to this method, the fireproof heat insulating material is thinned and used almost like an adhesive. It is also possible to make the concave shape slanted toward the inside of the forming plate or to enlarge the inside to further strengthen the bond between the rock wool forming plates, and Strength can be increased.

FIG. 5 shows an example in which the heights of the protrusions formed on the fireproof heat insulating molded material 2 are made as different as possible between the adjacent protrusions, which is a measure for improving the peel strength. That is, the rock wool molded plate 1 is usually formed by laminating thin layers due to its manufacturing process, and when such layers are simply laminated, delamination easily occurs. One of the purposes of forming protrusions on the fire-resistant heat-insulating molding material and allowing the protrusions to be inserted into the rockwool molding plate is to prevent peeling of layers due to shear force in the surface direction. The height of the layer is changed to prevent peeling between layers due to a force in the direction perpendicular to the surface.

FIG. 6 shows an example in which the depths of the recesses present on one side or both sides of the rock wool molded plate are made as different as possible between the adjacent recesses, and in order to improve the peel strength as described above. It is a countermeasure.

FIG. 7 is a cross-sectional view of an embodiment of a fire-resistant partition panel using a flat fire-resistant heat-insulating molding material, when the strength of the core material is not so high. Indicates a panel surface steel plate.

[0013]

As described above, the core material of the fireproof partition panel of the present invention is a combination of a rockwool molded plate having high heat insulation performance and a fireproof heat insulating material holding a large amount of crystal water. The fireproof insulation is mainly responsible for the fireproof insulation material, and the combined effect of making good use of both of these characteristics makes it possible to realize a core material that is lightweight, has high strength, has large insulation performance, and can withstand long-term heating. . Therefore, when this is used as a core material of a steel plate partition panel instead of a flammable paper honeycomb core or a mere non-combustible gypsum board, a long-term fireproof partition panel having high heat insulation performance can be easily obtained.

[Brief description of drawings]

1 is a sectional view taken along the line AA in FIG. 2 according to an embodiment of the present invention.

FIG. 2 is an example of an external perspective view of a core material of a fireproof partition panel.

FIG. 3 shows an example of a method of manufacturing a fireproof partition panel core material by a pressure press device.

FIG. 4 shows an example of a manufacturing method when a slurry of refractory insulation is filled.

FIG. 5 shows a rock wool molding plate in which recesses are formed in which adjacent recesses have different depths.

FIG. 6 shows a refractory insulation having protrusions with adjacent protrusions having different heights.

FIG. 7 is an example of a steel plate fireproof partition panel using a core material made of a flat fireproof heat insulating molding material.

[Explanation of symbols]

 1 Rockwool molded plate 1a Rockwool molded plate with dents on both sides 1b Rockwool molded plate with dents on one side 2 Fireproof heat insulating material 2a Fireproof heat insulating molded material with protrusions on both sides 2b Fireproof with protrusions on one side Heat-insulating molding material 2c Flat fire-resistant heat-insulating molding material 3 Slurry of fire-resistant heat-insulating material 4 Pressure plate of pressure molding press 5 Panel surface steel sheet A Fire-resistant partition panel core material B Adhesive coated surface

Claims (8)

[Claims] 1. A structure in which a plurality of rock wool molding plates and plate-shaped fireproof heat insulating molding materials are alternately laminated,
A fire-resistant partition panel core material, characterized in that at least one fire-resistant heat-insulating molding material is present inside to form a composite laminate. 2. A plurality of combinations of a rock wool molding plate having a large number of depressions on one side or both sides and a fireproof heat insulating molding material having a large number of projections matching the depressions are combined so that the depressions and the projections match each other. A fire-resistant partition panel core material characterized by being made into a composite laminate of one piece. 3. One or more fire-resistant heat-insulating moldings and one or more rockwool moldings, which have a large number of projections on one or both sides and whose surface having the projections is coated with an adhesive, are alternated. A core material for a fire-resistant partition panel, which is obtained by stacking and pressing so that the protrusions of the fire-resistant heat-insulating molding material fit into the rock-wool molding board, and then curing the adhesive to form a composite laminated board. 4. A plurality of rock wool molding plates having a large number of recesses on one or both sides are used, and a space between the molding plates including the recesses is filled with a slurry of water-refractory heat insulating material and cured. A fire-resistant partition panel core material characterized by being dried to form a composite laminated plate. 5. A fire-resistant partition panel according to claim 1, wherein the fire-resistant heat-insulating molding material having protrusions is a gypsum molding board containing fibers, an ettringite board, a calcium silicate molding board, or a pearlite board. Heartwood 6. The refractory insulation slurry is mainly composed of one of hemihydrate gypsum, ettringite, calcium silicate, or perlite, and one of inorganic fibers, organic fibers, lime, gypsum hemihydrate, cement, etc. The fire resistant partition panel core material according to claim 4, wherein one or more kinds of the materials are added and kneaded with water. 7. The core material for a fireproof partition panel according to claim 3, wherein the heights of the protrusions formed on one side or both sides of the fireproof heat-insulating molded material are made as different as possible between adjacent protrusions. 8. The core material for a fireproof partition panel according to claim 4, wherein the depths of the recesses formed on one side or both sides of the rock wool molded plate are different between adjacent recesses as much as possible.