JPH07127158A - Fireproof panel - Google Patents

Abstract

PURPOSE:To provide a fireproof panel which can be used as members for an inner wall, an outer wall, a roof, a ceiling, a floor, a backing, a partition or a fireproof door in such a building structure that a fireproof characteristic is required, or as members for a fireproof safe, is light in weight, and has mechanical strength enough to be used. CONSTITUTION:An elongated fireproof panel 1 is so composed that plastic foam 27 prepared by mixing inorganic material such as aluminum hydroxide, ammonium polyphospate, graphite, calcium silicate or calcium carbonate into phenolic foam resin is integrally formed between obverse and reverse materials 2, 21 each consisting of elongated board materials, and that a male connection part 28 and a female connection part 32 are respectively provided on both sides in the longitudinal direction thereof. Cut-out parts 30, 34, at which the male and female connection parts 28, 32 are opposed to each other are so formed that the obverse and reverse materials 2, 21 and board members 29 made of semi-incombustible material or more grade are opposed to each other. A packing material 31 with incombusibility is integrally implanted therein, and thus fire resistance, constructing efficiency and productivity are extremely improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an interior wall material, an exterior wall material, a roof material, a ceiling material, a floor material for buildings and structures which require fire resistance.
The present invention relates to a long fireproof panel that can be used as a partitioning material, a fire door, and the like, is lightweight, and has mechanical strength.

[0002]

2. Description of the Related Art Generally, as a fireproof panel for a fireproof structure, there is JP-A-4-237756.

[0003]

However, in a fireproof panel having such a structure, under high heat, the front surface material and the back surface material are deformed in different directions by being pulled toward the heating side due to the difference in heat conduction. Due to this, a gap is created in the connecting part, and heat and flame leak from this part to the other side, and J
There was a defect that the test of IS-A-1304 for a fire resistant structure for 1 hour could not be passed. Further, when the male and female connecting portions have a complicated shape, the fireproof performance of the joint portion can be enhanced, but the construction becomes difficult and it is necessary to increase the dimensional accuracy. Also,
The guides for the front and back materials were not accurate, and there was the disadvantage of causing large dimensional errors during manufacturing. In addition, the non-combustible material is not exposed to the outer surface of the connecting portion even if one surface of the non-combustible material is
Since the contact surface is not peeled off by the packing material, there is a drawback that heat shock is large and dew condensation occurs.

[0004]

In order to eliminate such drawbacks, the present invention has a male sandwich panel in which a core material mainly composed of phenol foam is interposed between front and back materials.
A long plate having a short width equal to or larger than the semi-incombustible material is integrally formed almost in the middle of contact with the female connecting portion, and is provided at a substantially opposing position, and a surface for contacting the non-combustible packing material such as the cushioning material and the dimension adjusting material. We propose a fire-resistant panel that has been planted to improve fire resistance, workability, heat insulation and productivity.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the fireproof panel according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing a typical example of the above fireproof panel.
Is a sandwich structure in which a core material 26 is integrally interposed between a front surface material 2 and a rear surface material 21 in a fireproof panel, and male connecting portions 28 and female connecting portions 32 are provided on both side edges in the longitudinal direction thereof. It is a composition.

That is, the surface material 2 and the back surface material 21 are thin metal plates such as iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel plate, enamel steel plate, clad steel plate, laminated steel plate (vinyl chloride steel plate, etc.), sandwich steel plate. One type of (a damping steel plate and the like) and the like (including, of course, color metal plates obtained by coating these in various tones) is formed into various shapes by roll molding, press molding, extrusion molding or the like.

As for the shape of the surface material 2, for example, as shown in FIG. 2A, a long plate-shaped decorative surface portion 3 has a horizontal planar decorative surface 4,
Side edges 5, which are bent inward at both longitudinal edges of the decorative surface 4,
6, a step portion 7 that extends the lower end of the side edge 5 outward and serves as a joint bottom surface, an upper surface 8 in which the tip of the step portion 7 projects further outward, and a step in which the tip of the upper surface 8 is bent inward. 9 and step 9
A guide strip 12 composed of an upper surface 10 with the tip of the upper end protruding outward and a lower surface 11 with the tip of the upper surface 10 bent inward, and the tip of the lower surface 11 is at least L-shaped, preferably a concave strip. The quasi-incombustible material storage groove 13 is composed of a tongue piece 14 whose end edge is bent inward.

Further, at the other end of the surface material 1, there is a lower surface 16 having a step surface 15 which extends inwardly from the lower end of the side wall 6 and is inclined from the middle to accommodate a fixture head described later, and a tip of the step surface 15. An insertion groove 17 formed inwardly as a concave line, and a support line 18 having a U-shaped cross section whose lower surface is an upper surface.
A semi-incombustible material accommodating groove 19 having an inverted U-shaped cross section with the lower surface of the support strip 18 as the upper surface, and a guide piece 20 with its tip bent inward.
It is composed of and.

The backing material 21 is, for example, as shown in FIG. 2B, an oblong bottom surface 22 facing the decorative surface portion 3 and a bottom surface 22.
Formed by a guide piece 23 whose one end is bent inward in a substantially L shape, a receiving piece 24 whose end is bent inward, and a receiving piece 25 whose other end is bent in an L shape. Is. A ridge 23a is formed at the base of the guide piece 23 to help guide the packing material 31 described later.

Further, the tongue piece 14, the guide piece 20, the receiving piece 2
Nos. 4 and 25 are useful for improving the dimensional accuracy without displacement when the front surface material 2 and the back surface material 21 shown in FIGS. 2A and 2B are laminated as shown in FIG. .

The core material 26 is a plastic foam 27 mainly composed of phenol foam, and mainly functions as a heat insulating material, a fireproof material, an adhesive, a reinforcing material, a cushioning material, a sound absorbing material, a bulking material, and a weight reducing material. It is a thing. As a more specific example, a resol type phenolic foam, a foaming agent, aluminum hydroxide (Al (OH) ₃ ), ammonium polyphosphate, expandable graphite, a curing agent, an inorganic material such as calcium silicate or calcium carbonate, etc. Is mixed, foamed and cured, and the finished density is 50 to 300 Kg / m ^3.
It is the one formed in the place.

Resol type phenolic foam (hereinafter,
Phenolic foam) is mainly produced by a continuous foaming molding method, and has the properties of noncombustibility, low smoke generation, and low toxicity compared to other synthetic resin foams (plastic foams). Is. Moreover, the composite material formed by sandwiching this phenol foam on a metal plate is, as a single body, JIS-A-1301 (fireproof test method for wooden parts of buildings), JIS-A-1302 (non-combustible structure part of buildings). It has a fireproof performance that passes the fireproof structure test of (fireproof test method).

As the foaming agent, a stock solution of phenol foam is used.
When the amount is 0 part by weight, 2 to 50 parts by weight is mixed with the undiluted solution of the phenol foam, and examples thereof include methylene chloride and carbonate (powder).

Aluminum hydroxide is mixed in an amount of 50 to 300 parts by weight based on 100 parts by weight of the undiluted solution of phenol foam, and is useful as a flame-retardant material, a refractory material, and a heat-resistant material. Is. For example, the composition thereof has a moisture content of 0 to 30%, a particle size of 10 to 100 μm, and a purity of 90% or more.

Ammonium polyphosphate is used as a reaction control material and a flame retardant material, when 1 to 25 parts by weight of the phenol foam stock solution is mixed with the phenol foam stock solution. The particle size is 30-100 μ.

The expandable graphite is mixed in an amount of 2 to 30 parts by weight based on 100 parts by weight of the phenol foam stock solution. The effect is that the phenol foam is carbonized and a void is formed at the time of a fire, but the void is closed by graphite expanded by heating to prevent deterioration of fire resistance performance due to thinning of the meat.

The curing agent is a phenol foam stock solution of 10 parts.
When the amount is 0 part by weight, 10 to 50 parts by weight is mixed with the stock solution of the phenol foam, which is an organic phosphoric acid type or a mixture of phosphoric acid type and PSA type.

Calcium silicate or calcium carbonate,
An inorganic material such as glass fiber or rock wool is mixed to improve the shape retention and fire resistance of the plastic foam 27.

The male connecting portion 28 includes the step portion 7 and the guide strip 1.
2. A side end portion of the fire-resistant panel 1 formed from the plate material 29 which is a semi-incombustible material or more, the ridge 23a, the cutout portion 30, and the packing material 31. The plate material 29 which is a semi-incombustible material or more is used for enhancing the fire resistance of the connecting portion γ described later, and has, for example, a shape as shown in FIG. 3, and its material is, for example, a calcium silicate plate or a calcium carbonate. Board, gypsum board, perlite cement board, rock wool board, slate board, ALC board, PC board, other inorganic lightweight material, inorganic lightweight foam, or one or more of these composite boards, or ultra high density resin (high (For example, phenolic foam having a high density) is integrally interposed in a shape substantially matching the shapes of the male connecting portion 28 and the female connecting portion 32 of the fireproof panel 1.
In addition, the mounting may be performed at the time of forming the core material 26 or after the line-out. The packing material 31 is an inorganic material, and is made of, for example, rock wool felt, ceramic wool, or the like to prevent a gap from being generated between the connecting portions during a fire resistant structure test and to prevent the intrusion of fire, and is mainly fire resistant and airtight. sex,
It is for exhibiting a buffer property.

To explain further, the step portion 7 and the upper surface 8 are formed so as to be lower than the decorative surface 4, and the cover portion 33 of the female connecting portion 32 does not protrude from the decorative surface 4 and is housed substantially flush with and fixed. The head of the tool β is also sized so that there is a space to be housed between the cover portions 33. The cutout portion 30 has a substantially rectangular cross section, which makes the workability extremely easy and allows manufacturing and construction errors to be easily absorbed.

The female connecting portion 32 includes a step portion 7, a cover portion 33 that covers the upper surface 8, an insertion groove 17 into which the guide strip 12 is inserted, a plate material 29 of a semi-incombustible material or more, and a notch portion corresponding to the notch portion 30. And 34.

Reference numeral 35 denotes a waterproof packing material, which is generally commercially available, such as polyvinyl chloride type, chloroprene type, chlorosulfonated polyethylene type, ethylene propylene type, and asphalt-impregnated polyurethane type. It is useful as a function of materials, airtight materials, etc.

Next, a construction example will be briefly described. It is now assumed that the fire-resistant panel 1 as shown in FIG. 1 is used for construction as shown in FIG. Although not shown, a drainer, a starter or the like is fixed to the lowermost end of the frame α made of a steel frame base shown in the figure. Therefore, as shown in the figure, the upper surface 10 of the fireproof panel 1 of the nth stage is fixed on the frame α via the fixing tool β.

Next, the female connecting portion 32 of the upper (n + 1) th fireproof panel 1 is fitted into the male connecting portion 28 of the fireproof panel 1. Therefore, in order to form the outer wall, the above steps may be sequentially performed from the base toward the eaves.

Further, in order to confirm the fireproof property of the fireproof panel 1, a test for a fireproof structure of JIS-A-1304 for 1 hour was conducted, and a satisfactory performance was obtained. Note that the specifications at this time are 0.5 for the front and back materials 2 and 21.
The color steel sheet having a thickness of mm, the core material 26 being a phenol foam (a density of about 180 kg / m ³ ) and the plate material 29 being a calcium silicate plate having a thickness of 10 mm, the total thickness was about 60 mm. In addition, a packing material 31 made of an inorganic material made of rock wool felt is continuously planted in the connecting portion γ so that no gap is formed in the connecting portion γ, and a heat insulating layer, a fireproof layer, a buffer layer, and a joint material (also for size adjustment). It is formed so as to function as (including).

The above description is only one embodiment of the fireproof panel according to the present invention, and it can be formed as shown in FIGS. 5 to 7 (a) to (c). In addition, in FIG. 5, a material similar to the above-mentioned quasi non-combustible material 29 is attached to the inside of the guide strip 12 of the male connecting portion 28 to provide the fire-resistant panel 1 with further enhanced fire resistance and engagement force. it can.

Further, the core material 26 of the fireproof panel 1 is shown in FIG.
The fire-resistant panel 1 having further fire resistance can be formed by forming as shown in (a) to (c). That is, FIG.
In (a) to (c), the non-woven fabric 36 is interposed between the front surface material 2, the back surface material 21 and the core material 26 via the adhesive 37, or the lightweight aggregate 38 is closely packed, and the plastic foam 27 is used as the binder. Is used.

The non-woven fabric 36 is a sheet-like material made of polyester, nylon, boron, carbon, alumina, silicon carbide, and aramid fibers, which improves the mechanical strength of the fire-resistant panel 1 and the surface thereof. It has a function of enhancing the adhesiveness between the material 2, the back surface material 21 and the core material 26, and improving the flatness of the surface material 2 and the back surface material 21.

Examples of the adhesive 37 include an elastomer type epoxy resin, an emulsion type such as an isocyanate, for example, methylene diisocyanate (abbreviated as MDI), a hot melt type, and a modified isocyanate thereof such as a urethane-modified, buret-modified isocyanate and isocyanurate-modified isocyanate. Etc. are used.

As the lightweight aggregate 38, pearlite particles, glass beads, gypsum slag, talc stone, shirasu balloon, etc. are used, and in FIGS. 7B and 7C, pearlite particles having a diameter of about 5 to 20 mm are used. In addition to improving the fire resistance and fire resistance of the core material 26, the mechanical strength of the panel A is also improved.

Further, without mixing an inorganic material such as calcium silicate or calcium carbonate in the plastic foam 27, a foaming agent, aluminum hydroxide, ammonium polyphosphate, graphite, a curing agent is added to the resin material of the phenol foam in the above weight ratio. May be formed by mixing
Even in this case, the same fire resistance as the fire resistant panel 1 in which an inorganic material such as calcium silicate or calcium carbonate is mixed is provided.

In FIGS. 6A to 6F, the waterproof packing material 35 is omitted. Also, 2b
Represents a makeup rib. Further, the density of the end portion (connecting portion) of the core material 26 may be higher than that of the central portion. Further, the plate material 29 which is a semi-incombustible material or more may contain inorganic powder containing crystallization water, for example, borax, gypsum powder, cement, resinous graphite or the like.

[0033]

As described above, according to the fireproof panel of the present invention, the mechanical strength of the fireproof panel is significantly improved as compared with the conventional case. Fireproof structure test of building structure (JIS-A-
1304) has a performance of passing the fire resistance test. Since the fitting part is only the guide strip and the insertion groove, the construction is extremely easy even if there is a skeleton or manufacturing error, and the construction efficiency is more than double that of the previous case. The packing material absorbs the dimensional error of both cutouts, and can fully exhibit fire resistance. Inorganic powder containing crystallization water that can be used for planting any plate material even after line-out because it is manufactured by inserting a plate material of quasi-incombustible material or more from outside When it contains, the weak points of the connecting portion can be surely strengthened. In particular, when the positions of the plate materials of the semi-incombustible material or more face each other, joints having strong fire resistance are formed. Since the above-mentioned plate material is not interposed in the core material, it does not inhibit reaction and foaming,
Cost reduction and strength increase can be achieved. There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a typical example of a fireproof panel according to the present invention.

FIG. 2 is a cross-sectional view showing an example of a surface material and a back surface material used for the fireproof panel according to the present invention.

FIG. 3 is a partially cutaway perspective view showing an example of a plate material of quasi non-combustible or more used for the fire resistant panel according to the present invention.

FIG. 4 is a vertical cross-sectional view showing a connecting portion of a wall formed by using the fireproof panel according to the present invention.

FIG. 5 is a perspective view showing another embodiment of the fireproof panel according to the present invention.

FIG. 6 is a sectional view showing another embodiment of the fireproof panel according to the present invention.

FIG. 7 is a partially extracted cross-sectional view showing another embodiment of the fireproof panel according to the present invention.

[Explanation of symbols]

 1 Fireproof panel 2 Surface material 2a Back surface 2b Decorative rib 3 Decorative surface 4 Decorative surface 5 Side edge 6 Side edge 7 Step portion 8 Upper surface 9 Step 10 Upper surface 11 Lower surface 12 Guide strip 13 Semi-incombustible material storage groove 14 Tongue piece 15 Step surface 16 Lower surface 17 Insertion groove 18 Support strip 19 Semi-incombustible material storage groove 20 Guide piece 21 Back surface material 22 Bottom surface 23 Guide piece 23a Convex strip 24 Receiving piece 25 Receiving piece 26 Core material 27 Plastic foam 28 Male type coupling section 29 Semi-incombustible material or more Plate material 30 Notch portion 31 Packing material 32 Female connecting portion 33 Cover portion 34 Notch portion 35 Waterproof packing material 36 Nonwoven fabric 37 Adhesive 38 Lightweight aggregate α Skeleton β Fixing tool γ Connecting portion

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[Procedure amendment]

[Submission date] September 14, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 3]

[Figure 1]

[Fig. 2]

[Figure 4]

[Figure 5]

[Figure 6]

[Figure 7]

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B32B 27/42 7421-4F

Claims (1)

[Claims] 1. A core material containing phenol foam as a main component is integrally formed between a front surface material and a back surface material, which are long plate materials,
Also, in a long fireproof panel having male and female connecting parts on both side surfaces in the longitudinal direction, the male connecting part is a step which becomes a joint bottom face outward at the lower end of one side edge of the decorative surface part. Part of the semi-incombustible material parallel to the decorative surface at a substantially intermediate position between the lower surface of the guide strip and the back surface of the guide strip, and the rear surface of the guide strip. A packing material is planted on the innermost surface of the cutout portion with the above plate material interposed, and the female connection portion has a cover portion that covers a main portion of the step portion and a fixture head, and the guide. An insertion groove for inserting a strip, a support strip having a U-shaped opening on the lower surface of the insertion groove, a semi-incombustible material storage groove further bent in an inverted U-shape, and a semi-incombustible material storage groove A fire-resistant panel characterized by being composed of a plate material which is a semi-incombustible material or more.