JP3182566B2 - Fireproof panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the construction of buildings and buildings requiring fireproof performance, such as inner wall materials, outer wall materials, roof materials, ceiling materials, floor materials,
The present invention relates to a long fireproof panel which can be used as a partition member, a fire door, or the like, is lightweight, has mechanical strength, and is easy to manufacture.

[0002]

2. Description of the Related Art Generally, Japanese Patent Application Laid-Open No. 4-237756 discloses a fireproof panel for a fireproof structure.

[0003]

However, the refractory panel having such a structure is deformed in a greatly different direction by being pulled toward the heating side due to a difference in heat conduction, under high heat, due to the difference in heat conduction. As a result, a gap is formed in the connecting portion, and heat and flame leak from this portion to the opposite side, and J
There was a drawback that the test for the refractory structure of IS-A-1304 for 1 hour could not be passed. In addition, there is a concern that rainwater or the like infiltrates the core material from the casting portion, and corrodes the core material, and further corrodes the internal skeleton due to the casting of the fixing tool.

Further, a fire-resistant panel in which a phenol foam is simply sandwiched between a front material and a back material is weak in strength because of a synthetic resin foam as a core material, and is inferior in bending strength and wind pressure strength. Therefore, the pitch at which it was attached to the skeleton had to be shortened, and there was a drawback that the workability was poor. In addition, the adhesive strength between the surface material, the back material and the core material is weak,
There was a drawback that the surface material, the back surface material, and especially the end portions of the core material were peeled off by a slight impact. Furthermore, in each connection part, the core material may leak from the joint of the front surface material and the back surface material,
There is a disadvantage that the yield is significantly reduced and the cost is increased. In addition, a fireproof panel in which an inorganic board is interposed at a necessary portion at a weak point of the male and female connecting portions is also known.

[0005]

According to the present invention, in order to eliminate such drawbacks, an end molded body for closing the end surface is integrally formed on the end surface in the width direction between the front and back members of the male and female connecting portions. Proposed a fireproof panel that passed the JIS-A-1304 fireproof structure 1 hour test, was easy to manufacture, reduced costs, and significantly improved the engaging force, waterproofness, workability, and strength. Is what you do.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a fireproof panel according to the present invention. FIG. 1 is a partially cut-away perspective view showing a typical example of the fireproof panel. Reference numeral 1 denotes a fireproof panel.
And a male connecting portion 41 and a female connecting portion 45 provided at both ends in the width direction thereof. Further, the surface material 2 and the back surface material 2 of the connecting portion are provided.
In this configuration, end molded bodies 30 and 35 mainly composed of phenol resin are interposed between the core material 2 and the core material 28.

More specifically, the front surface material 2 and the back surface material 22
Is a metal sheet, for example, iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy-plated steel sheet, enameled steel sheet, clad steel sheet, laminated steel sheet (PVC steel sheet, etc.), sandwich steel sheet (damping steel sheet, etc.) (of course, Color metal plates painted in various colors, or plate materials that have been subjected to processing such as embossing or ribs of an arbitrary pattern) are formed into various shapes by roll forming, press forming, extrusion forming, or the like, or Asbestos paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber non-woven fabric as inorganic material or back material 22 Or a laminate of two or more, or a sheet that has been waterproofed or flame retarded. It become one.

The shape of the surface material 2 is, for example, as shown in FIG.
The decorative surface portion 3 having a horizontally long shape has a decorative surface 4 in a horizontal plane, side edges 5 and 6 formed by bending both side edges in the longitudinal direction of the decorative surface 4 inward, and a lower end of the side edge 5. A joint bottom 7 extending outward, and one end of the surface material 1 has a joint bottom 7
The upper surface 8 further protrudes outward from the upper surface, the inclined surface 9 and the side surface 10 which protrude in a substantially triangular shape, the fixing groove 11 having a concave cross section formed on the upper surface 8, and the lower end of the side surface 10. A fixed ridge 13 is formed by a lower surface 12 protruding inward, and a guide piece 14 is formed by hanging the tip of the lower surface 12 downward.

Further, at the other end of the surface material 1, a lower edge 15 in which the lower end of the side edge 6 is extended inward, and contact inclined surfaces 16, 17 in which the tip of the lower edge 15 is inclined downward and bent. A fitting groove 19 formed in a substantially U-shaped cross section inward from a lower surface 18 protruding outward at the tip of the abutment inclined surface 17, and an inwardly bent U-shaped tip of the lower surface 18. The fitting ridge 20 and a guide piece 21 having a substantially L-shaped cross section serving as a lower edge of the fitting ridge 20 are formed.

As shown in FIG. 2B, for example, the back member 22 has a long bottom surface 23 facing the decorative surface 3 and one end of the bottom surface 23 has an inwardly bent U-shaped fitting ridge. 24, and a guide piece 25 projecting outward at the tip of the fitting projection 24. A guide piece 26 projecting inward at the other end, and a tongue piece 27 bent at the tip inward. Is provided.

The guide pieces 14, 21, 25 and 26 correspond to the front surface material 2 and the back surface material 22 shown in FIGS.
As shown in (1), when the layers are stacked, the stacking position is not shifted, and the dimensional accuracy of the fireproof panel 1 is improved.

The core member 28 includes a plastic foam 29 and
The end foams 30 and 35 are interposed at both ends, and the plastic foam 29 is mainly made of a heat insulating material, a refractory material,
It functions as an adhesive, a reinforcing material, a cushioning material, a sound absorbing material, a bulking material, a lightening material, and the like.

As the plastic foam 29, a resol type phenol foam is mixed with a foaming agent, aluminum hydroxide (Al (OH) ₃ ), ammonium polyphosphate, graphite, a hardener, and inorganic materials such as calcium silicate or calcium carbonate. Then, foamed and cured to form a finished density of about 50 to 300 kg / m ³ .

Resol type phenol foam (hereinafter referred to as "resol type phenol foam")
Phenol foam) is manufactured mainly by a continuous foam molding method and has nonflammability, low smoke emission and low toxicity compared to other synthetic resin foams (plastic foam). It is. The metal siding material formed by sandwiching the phenol foam on a metal plate is JIS-A-1301 alone.
(Fire test method for wooden part of building), JIS-A-1
It has a fire protection performance that passes a fire protection structure test of 302 (fire prevention test method for a non-combustible structure portion of a building).

[0015] The foaming agent is a phenol foam stock solution of 10
If it is 0 parts by weight, 2 to 50 parts by weight are mixed with the stock solution of the phenol foam, for example, methylene chloride, carbonate (powder) and the like.

Aluminum hydroxide is mixed with 50 to 300 parts by weight based on 100 parts by weight of the stock solution of phenol foam, and is useful as a flame retardant, a refractory material and a heat-resistant material. is there. For example, the composition has a water content of 0 to 30%, a particle size of 10 to 100 μ, and a purity of about 90% or more.

Assuming that the stock solution of phenol foam is 100 parts by weight, ammonium polyphosphate is mixed with 1 to 25 parts by weight of the stock solution of phenol foam, and is useful as a reaction regulator and a flame retardant. The particle size is 30-100μ.

Assuming that the stock solution of phenol foam is 100 parts by weight, graphite is mixed with 2 to 30 parts by weight of the stock solution of phenol foam. The effect is that the phenol foam is carbonized at the time of fire and voids are formed. However, the voids are closed by the graphite expanded by heating to prevent a decrease in fire resistance performance due to thinning.

The curing agent is a phenol foam stock solution of 10
If it is 0 parts by weight, it is mixed with 10 to 50 parts by weight based on the stock solution of the phenol foam, and is an organic phosphoric acid type or a mixture of a phosphoric acid type and a PSA type.

An inorganic material such as calcium silicate or calcium carbonate is mixed to improve the shape retention and fire resistance of the plastic foam 29. The end molded bodies 30 and 35 have a substantially U-shaped cross section as shown in FIGS. 3A and 3B, for example.
Male and female connecting parts 4 to be described later in section of the end of the fireproof panel 1
It is formed in a cross section substantially matching the cross section shape of Nos. 1 and 45.

The end moldings 30, 35 are male and female connecting portions 4
It functions as a backup / reinforcement material of 1, 45 and an end closing material, and is mainly composed of a phenol resin (a resol type, a novolak type, a simple substance or a mixture as a main component,
In addition to this, fibers (organic and inorganic), inorganic aggregates (pearlite grains,
(Calcium carbonate powder, calcium silicate powder, cement powder). As an example, a molded article obtained by extruding granulated novolak-based phenol foam particles and one or more inorganic fibers (glass fibers) having a length of 5 mm, graphite foam particles as an aggregate, and using a resol-based phenol resin as a binder, or A molded article or the like is obtained by arranging long fibers in the longitudinal direction, using the fibers as a skeleton, adding the above-mentioned aggregate cement particles and graphite particles, and interposing a resol-based phenol resin as a binder.

More specifically, the end molded body 30 is formed such that a concave ridge 33 is formed between the large ridge 31 and the small ridge 32, and the end 34 is integrally formed on the basis of the end 34. In addition, the end molded body 35 is formed by integrally forming the cover part insertion projection 36, the fitting concave ridge 37, the fitting convex ridge 38, the notch 39, and the end part 40.

The male connecting portion 41 is formed by integrally fixing the fixing projection 13, the guide piece 14, the fitting projection 24, the fitting groove 42, the step 43, the upper projection 44 and the end molded body 30 with the core material 28. And the formed side end portions. That is, the cover portion 46 of the female connecting portion 45 does not protrude from the decorative surface portion 3,
A step portion 43 formed so as to be able to be housed substantially flush with the upper projection 44 for strengthening the guide and engagement force;
This is formed from a fitting groove 42 into which 0 is fitted.

The female connecting portion 45 includes the fitting ridge 20 and the fitting groove 1.
9, the guide piece 26, the end molded body 35, and the cutout portion 47 are formed integrally with the core material 28.

Reference numeral 48 denotes an inorganic packing material, which is made of, for example, rock wool felt, ceramic wool, or the like. It is useful as a function such as a refractory material and an airtight material.

Reference numeral 49 denotes a waterproof packing material which is generally available on the market such as polyvinyl chloride, chloroprene, chlorosulfonated polyethylene, ethylene propylene, and asphalt-impregnated polyurethane. In addition, it is useful as a function such as a waterproof material and an airtight material.

Further, the inclined surface 9 and the contact inclined surface 16
As shown in FIG. 4, when the upper refractory panel 1 is dropped into the lower refractory panel 1 for construction, even if the side edge 6 serving as the lower end collides with the fixed ridge 13, the construction can be easily performed. It is formed and intended to greatly improve workability.

The triangular space a formed in the fixed ridge 13 is provided with water such as condensed water generated from the plastic foam 29 absorbed by the end moldings 31 and 35 at both ends of the fireproof panel 1. This is for discharging to the outside at a portion such as a vertical joint formed, and the end molded bodies 31 and 35 are formed.
This prevents water from remaining in the fireproof panel 1 and prevents the strength of the fireproof panel 1 itself from decreasing.

Next, a construction example will be briefly described. Assume now that a fireproof panel 1 as shown in FIG. 1 is used to construct as shown in FIG. Although not shown, a drainer, a starter, and the like are fixed to the lowermost end of the skeleton γ composed of the illustrated steel frame base. Therefore, as shown in the figure, the n-th refractory panel 1 is fixed on the skeleton γ by driving a fixing tool β into the fixing groove 11 on the skeleton γ.

Next, the female connecting portion 45 of the (n + 1) -th fireproof panel 1 as the upper stage is attached to the male connecting portion 41 of the fireproof panel 1 as shown in FIGS. Therefore, in order to form the outer wall, the above-described steps may be performed sequentially from the base to the eaves. Then, in order to confirm the fireproof property of the fireproof panel 1, a fireproof structure test of one hour in the fireproof structure test of JIS-A-1304 was performed, and the performance that passed was obtained. In this case, the surface material 2, the back surface material 22 were a color steel plate having a thickness of 0.5 mm, the core material 28 was phenol foam (density of about 200 kg / m ³ ), and the end molding 3
0 and 35 have the following dimensions. That is, the density is 300K
g / m ^3rd place, H ≒ 50mm, h ≒ 20mm, T ≒ 10m
m, W ≒ 35-40mm, H1 ≒ 70mm, h1 ≒ 40
mm, T1 ≒ 10 mm, W1 ≒ 45-50 mm. The inorganic packing material 48 is formed by implanting a material made of rock wool felt as shown in the figure.

The above is only one embodiment of the refractory panel according to the present invention. For example, as shown in FIG. 6, the end molded bodies 31 and 35 have a skeleton A extruded from calcium silicate, vinyl chloride or the like as shown in FIG. And the outer peripheral surface thereof is covered with a phenol sheet 50 (density of about 150 kg / m ³ ) having a thickness of about 5 mm impregnated with a resol type phenol resin and adhered together, or a low density of about 3 to 5 mm and about 5 to 10 times. An end molded article covered with the foam layer 51 may be used.

Further, the front surface material 2 and the back surface material 22 are shown in FIG.
(A), (b) and the structure shown in FIG.
May be formed, and the end molded bodies 31 and 35 corresponding to this may be formed.

FIG. 9 shows the front end B of the refractory panel 1.
As shown in (a) and (b), the liquid agent layer 52 is impregnated with a width of l = 3 to 10 mm, the coating film 53 is formed, and the waterproofness and water absorption prevention of the wood tip, the surface material 2 and the back material 22 are formed. It can also prevent rust. Of course, the combination of FIGS. 9A and 9B is also possible.

Further, the core material 28 of the refractory panel 1 is shown in FIG.
The fireproof panel 1 having the fire resistance by being formed as shown in FIGS. That is, FIG.
(E) shows that the nonwoven fabric 54 is interposed between the surface material 2, the back material 22 and the core material 28 via the adhesive 55,
6, and a plastic foam 29 is used as a binder.

The non-woven fabric 54 is a sheet made of polyester, nylon, boron, carbon, alumina, silicon carbide, or aramid fiber. 2. It has a function of enhancing the adhesion between the back member 22 and the core member 28 and improving the flatness of the front member 2 and the back member 22.

Examples of the adhesive 55 include an elastomer type epoxy resin, an isocyanate such as an emulsion type such as methylene diisocyanate (abbreviated MDI), a hot melt type, and a modified isocyanate thereof such as a urethane-modified, buret-modified isocyanate, and an isocyanurate-modified isocyanate. And the like.

The lightweight aggregate 56 is made of pearlite grains, glass beads, gypsum slag, talc stone, shirasu balloon, etc., and has a diameter of 5 to 20 mm in FIGS.
The degree of pearlite particles is used to improve the fire resistance and fire resistance of the core material 26 and also improve the mechanical strength of the fire panel 1.

Further, the fireproof panel 1 is shown in FIGS.
The shape shown in (g) can also be formed. In the figure, the inorganic packing material 48 and the waterproof packing material 49 are shown.
Is abbreviated.

Also, without mixing an inorganic material such as calcium silicate or calcium carbonate in the plastic foam 29, a foaming agent, aluminum hydroxide, ammonium polyphosphate,
It may be formed by mixing graphite and a hardening agent, and in this case also, it has the same fire resistance as the fire-resistant panel 1 mixed with an inorganic material such as calcium silicate or calcium carbonate.

[0040]

As described above, according to the fire-resistant panel of the present invention, the mechanical strength of the fire-resistant panel is greatly improved as compared with the conventional one, and the mechanical strength and the engagement force of the male and female connecting portions are about two times larger than before.
Up to 5 times. Fire resistance test of building structure (J
IS-A-1304), fire test for building fire doors (JI
SA-1311), fireproof storage (JIS-S-1037)
It has the performance to pass the fire resistance test such as. The adhesion between the front and back materials and the core material is strong, and there is no separation between members. There is no deformation such as swelling or warpage on the front and back materials. Since the end moldings are formed at both ends of the fireproof panel, the fireproof performance of the connecting portion, which is the weakest point in the event of a fire, is greatly improved, and at the same time, it functions as a thickness guide and dimensional stability can be ensured. Since the end molded body is interposed between the front and back surfaces, the plastic foam raw material of the core material does not leak from the male / female connecting portion at the time of production, so that the yield can be greatly improved. When the wood tip is covered with a paint film, the rust prevention and waterproofing are almost perfect, and the generation of rust and water absorption of the core material can be prevented. The end molded body can be easily mounted. There are features and effects such as.

[Brief description of the 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 front 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 an end molded body used for a fireproof panel according to the present invention.

FIG. 4 is a longitudinal sectional view showing a state in the middle of construction of a wall formed using the fireproof panel according to the present invention.

FIG. 5 is a longitudinal sectional view showing a state of a connecting portion of a wall formed using the fireproof panel according to the present invention.

FIG. 6 is an explanatory view showing another example of the end molded body used for the fireproof panel according to the present invention.

FIG. 7 is an explanatory view showing another embodiment of a front material and a back material of the fireproof panel according to the present invention.

FIG. 8 is an explanatory view showing another connecting portion of the fireproof panel according to the present invention.

FIG. 9 is an explanatory view showing another example of the opening of the fireproof panel according to the present invention.

FIG. 10 is an enlarged sectional view showing another embodiment of the core material of the fireproof panel according to the present invention.

FIG. 11 is a sectional view showing another embodiment of the fireproof panel according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fireproof panel 2 Surface material 2a Back surface 3 Decorative surface part 4 Decorative surface 5 Side edge 6 Side edge 7 Joint bottom 8 Upper surface 9 Inclined surface 10 Side surface 11 Fixed groove 12 Lower surface 13 Fixed ridge 14 Guide piece 15 Lower edge 16 Contact inclined surface 17 Contact inclined surface 18 Lower surface 19 Fitting groove 20 Fitting ridge 21 Guide piece 22 Back material 23 Bottom 24 Fitting ridge 25 Guide piece 26 Guide piece 27 Tongue piece 28 Core material 29 Plastic foam 30 End molded body 31 Large protrusion Article 32 Small ridge 33 Recess 34 End 35 End molded body 36 Cover insertion projection 37 Fitting dent 38 Fitting ridge 39 Notch 40 End 41 Male connecting part 42 Fitting groove 43 Step 44 Upper protrusion 45 Female connector 46 Cover 47 Notch 48 Inorganic packing material 49 Waterproof packing material 50 Phenol sheet 51 Low-density foam layer 52 Aqueous adhesive layer 53 coating 54 nonwoven 55 adhesive 56 lightweight aggregate A skeleton body B butt surface α connecting portion β fixture γ skeleton a space

────────────────────────────────────────────────── ─── Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B32B 1/00-35/00 E04B 1/74-1/99 E04F 13/00-13/18

Claims (1)

(57) [Claims] 1. A plastic foam in which one or more inorganic materials such as aluminum hydroxide, ammonium polyphosphate, graphite, calcium silicate or calcium carbonate are mixed in a phenol foam resin between a front material and a back material made of a long plate material. Are integrally formed, and a male type connecting part and a female type connecting part are provided on both sides in the longitudinal direction thereof. And an upper projection having a fixing groove with a concave cross section formed in the middle thereof formed in such a manner that the upper surface of the tip is inclined downward, and a fitting groove which is inwardly recessed is formed in this order. The cover part covering the groove, the fitting groove for accommodating the upper projection, and the outwardly protruding fitting ridge housed in the notch part are formed in this order, and the male connecting part and the surface material of the female connecting part are formed. Phenolic between cores A fire-resistant panel in which an end molded body mainly composed of a fat component is interposed integrally.