TWI356865B - - Google Patents

Description

1356865 IX. Description of the Invention: [Technical Field of Invention] The present invention relates to a method of forming a foamable refractory layer. [Prior Art] When a structure such as a building or a civil building is exposed to a high temperature due to a fire or the like, the mechanical strength of steel bars, concrete, and the like which are substrates of the structures is rapidly lowered. In this case, for example, a foamable refractory plate which can be foamed at a high temperature such as a fire and forms a carbonized layer to delay the temperature rise of the substrate and temporarily suppress the decrease in the physical strength of the substrate (Japanese Patent Publication) Bulletin No. 8-60763). Advantages of such a foamable refractory plate include that the film thickness can be thinner than that of a general refractory cover material, and the film thickness during construction can be easily managed. Compared with foamed and fire-resistant paints, it can save the protection during construction, reduce the time and labor of overlapping coating, and shorten the construction period. Further, in the construction of the foamable refractory plate, a smooth slab processing surface can be obtained by filling the joint portion of the plate with putty, a joint sealing material or the like. 20 However, when the foamable refractory plate is attached to a substrate having a curved surface such as a square steel pipe, a circular steel pipe, or a Η-shaped steel, it is likely to be bent on the plate. Therefore, when the panel is foamed at a high temperature caused by a fire or the like, as shown in Fig. 1, stress is generated inside the panel, and the putty, the joint sealing material, and the like which are filled in the joint portion are pulled to the plates on both sides. Finally, cracks, 5 1356865 cracks, etc. will occur. *The cracks in the joints and the fire resistance of the fire board are multi-family, and there is no money in the foaming resistance. The temperature of the eight base materials will be cracked, cracked, etc. The core is caught and the physical strength of the substrate is significantly lowered. (4) The foamed refractory plate is attached to a curved surface other than a flat surface. It is important to carry out the joint treatment which can effectively prevent the production of t at a high temperature. Crack Special 10 15 20 By adjusting the film thickness of the foamable refractory plate, the film thickness can be changed. In general, the larger the film thickness, the higher the Nb°--the higher the resistance, the lower the bendability and the easier it is. The f-folding = thickness is a problem in the temple when the foaming refractory plate is attached to a substrate having a curved surface. That is, the thickness of the construction fire plate is high (four) high: the fire:::::: degree is increased in foaming resistance as described above, although it is necessary to develop and construct the substrate at the same time and the substrate can also exhibit good fire resistance performance. The pair has a song that has not yet been developed. However, the present situation is the subject of the invention. The main object of the present invention is to provide a method for forming a foamable refractory layer having an easy-to-fire property. Secret layer. Means for Solving the Problem 6 The present inventors have found that the above object can be attained by a specific two-way method in view of the problems of the prior art and the results of the intensive research, so as to complete the present invention. I7 The present invention relates to a method of forming a foamable refractory layer described below. A method for forming a foamable refractory layer, which is a method for forming a foamable and fire-retardant layer, and comprising: the first step of using a foamable refractory plate of 1 or 2 or more a plate layer composed of a single layer or a plurality of layers is formed on the substrate at each end portion of the plate; and in the second step, a foaming refractory coating material is applied to the plate layer to at least the foaming refractory coating material Attached to the aforementioned abutting portion. 2. The method for forming a foamable refractory layer according to claim 1, wherein a plate having a fibrous layer on one or both sides thereof is used as the foamable refractory plate, and an adhesive or an adhesive is passed through The fibrous layer is attached to the substrate to form the layer. 3. The method for forming a foamable refractory layer according to the invention of claim 2, wherein a plate having a fibrous layer on one or both sides is used as the foamable refractory plate, and the fibrous layer is formed as described above The outermost layer of the ply to form the aforementioned plies. 4. The method of forming a foamable refractory layer according to the ninth aspect of the invention, wherein the slab layer is composed of two or more layers. 5. The method for forming a foamable refractory layer according to claim 4, wherein the foaming refractory plate located on the upper layer of the abutting portion spans the abutting portion, and the foaming refractory layer is laminated board. 1356865 6. The method for forming a foamable refractory layer according to claim 4, wherein each of the layers constituting the layer is 〇. 5 to 4 mm. 7. The method of forming a foamable refractory layer according to claim 1, wherein the thickness of the layer is 0.5 to 7 mm. 5. The method of forming a foamable refractory layer according to the first aspect of the invention, wherein the foamable fuel panel comprises a binder, a fueling agent, a foaming agent, a carbonizing agent, and a filler. 9. The method of forming a foamable refractory layer according to claim 1, wherein the foamable refractory coating comprises a binder, a flame retardant, a foaming agent, a carbonizing agent, and a filler. 10. The method of forming a foamable refractory layer according to claim 1, wherein the substrate comprises at least one of a curved surface and a curved portion. 11. The method for forming a foamable refractory layer according to claim 00, wherein at least one of the substrate including the curved surface and the curved portion is at least one of a square steel tube, a circular steel tube, and a bismuth steel. . 12. The method of forming a foamable refractory layer according to claim 10, wherein the first step and the second step are carried out in a field including at least the curved surface and/or the curved portion. EFFECT OF THE INVENTION According to the method for forming a foamable refractory layer of the present invention, good workability and fire resistance can be achieved at the same time. In other words, by using the foamable refractory plate, it is possible to surely control the thickness and shorten the construction period, and on the other hand, it is possible to improve the problem of the foamable refractory plate, that is, the weakness of the fire resistance of the butt portion. . More specifically, since the foamable refractory paint is applied to the butt portion of the foamable refractory plate, the substrate is prevented from being exposed from the butt portion at a high temperature such as a fire. In particular, when the putty or the joint sealing material is filled in the butting portion, the base material is not exposed even if cracks or cracks occur in the putty or the joint sealing material during a fire or the like, so that the fire resistance can be reliably suppressed. . During construction, a seamless machined surface is obtained and the handling of the board butt joints is simplified. Further, in the present invention, when a foamed refractory sheet is used to form a sheet layer composed of a plurality of layers, a thin foamed refractory sheet can be used as a sheet constituting each layer. By using a thin, foamable refractory plate, it is particularly suitable for the construction of substrates having curved surfaces and/or flexures. Good fire resistance is obtained compared to construction with only a foamable refractory coating. The present invention which is advantageous as described above is particularly effective when the foamable refractory layer is formed in at least one of a square steel pipe, a round steel pipe and an H-shaped steel.

[Embodiment J] The best mode for carrying out the invention The method for forming a foamable refractory layer according to the present invention is a method for forming a foamable refractory layer, and includes: (1) the first step, using 1 or 2 or more a foamable refractory plate which is formed on a base layer by a single layer or a plurality of layers on one side facing each end portion of the front plate; and (2) a second step of applying a foaming refractory paint to The ply layer is attached to at least the foaming refractory paint on the abutting portion. First step The first step is to form a plate layer composed of a single layer or a plurality of layers on the substrate by using one or two or more expandable refractory plates facing each end portion of the above-mentioned plate. Figure 3 is a view showing a construction example of the method of the present invention. In Fig. 3, three sheets of the foamable refractory plate 2 are attached to the substrate 1, and a layer composed of a single layer is formed. Thereby, three abutting portions (seam joints between the plates) are formed. The ply of Figure 3 is a single layer. Then, the foamed refractory paint 4 is adhered to the ply layer composed of the single layer. At this time, at least the foamable refractory paint is adhered to the abutting portion. The foamable refractory coating may be applied to the abutting portion as long as it is applied to the entire surface of the slab or applied to a part of the slab. In the present invention, it is particularly desirable to apply the foamable refractory coating substantially to the entire surface of the slab. Figure 4 shows other construction examples of the method of the present invention. In Fig. 4, three sheets of foaming properties are applied to the substrate 1 on the fire plate 2, and a first layer is formed. Further, three sheets of the foamable refractory plate 2 were attached to the first layer, and a second layer was formed. Thereby, a multilayered ply layer composed of the first layer and the second layer is formed. At this time, as shown in Fig. 4, it is preferable to form the second layer in a state of crossing the butted portion of the first layer. In Fig. 4, three abutting portions (joints between the plates) are formed in the ply (second layer). Then, the foamed fire-resistant paint 4 is attached to the ply layer composed of the plurality of layers. At this time, at least the foamable refractory paint is adhered to the abutting portion. The foamable refractory paint may be applied to the entire surface of the slab or applied to a part of the slab. In the present invention, it is particularly desirable to apply the foamable refractory coating substantially to the entire surface of the ply. (Substrate) The substrate is a target to which fire resistance is to be imparted. That is, the substrate is equivalent to the building

The fire-resistant part of the structure of the material and civil construction is required. For example, walls, columns, floors, beams, roofs, stairs, etc. The material of the Q substrate is not particularly limited, and examples thereof include metal, concrete, wood, and resin. The surface shape of the substrate is not particularly limited, and may have at least one of a curved surface and a curved portion in addition to the plane. The substrate with curved surface or flexure has square steel tube, round steel tube and Η steel. In this type of metal-formed red substrate, the anti-locking treatment can be applied to the anti-key coating 4 in advance. (foaming refractory plate) The foamable refractory plate (hereinafter also referred to as "plate") used in the present invention is formed by foaming and forming a carbonized heat insulating layer when the foaming temperature is predetermined by a peripheral temperature such as a fire. Yes, it is not particularly limited. In the month of the present invention, for example, a plate (1) which is formed into a sheet shape by a foaming property by a conventional method, and a plate which is impregnated with a foaming refractory paint in a nonwoven fabric or a woven fiberboard is used. (2) A plate in which the above (1) or (2) is laminated, a plate in which the above (1) or (2) is laminated on a non-combustible mesh, or the like. The foamable refractory paint is not particularly limited, and a foamable refractory paint disclosed in, for example, Japanese Patent Laid-Open Publication No. 7 276552 can be suitably used. Specifically, it is disclosed in Japanese Patent Laid-Open Publication No. 7-276552 that the solid content is 200 to 600 parts by weight of the flame retardant, 4045 parts by weight of the foaming agent, and the carbonization agent are added to the weight portion of the binder. A foamable refractory coating composed of 40 to 150 parts by weight and 50 to 160 parts by weight of a filler. The extent of the respective sheets can be appropriately set in accordance with the performance of the sheet, the applicable portion, and the like in the range in which the appropriate bendability can be obtained, and it is usually set to 0 5 to 4 nm, and more preferably 1 to 3 mm. When the thickness of each of the plates is less than 0.511 [1111, there is a possibility that the resistance of the large 11 can be insufficient. When it exceeds 4 mm, there is a problem that the bendability is lowered and the test processing is not easy. By setting the thickness of the sheet in the above range, good bendability can be obtained, and therefore, the laminate has a curved surface and/or a curved surface. Specially good workability can be obtained when the base material of the crucible is particularly a square steel pipe, a round steel pipe or a bismuth steel. Further, the thickness of the ply (i.e., the total thickness of the above-mentioned two or more layers) is usually 〇5 to 7 mm, more preferably 1 to 6 mm. By setting it in this knowledge, better fire resistance and the like can be obtained. The type of the plate can be appropriately selected in accordance with the applicable portion, the material of the substrate, and the like, and a conventional thing or a commercially available product can be used as needed. a method of attaching the foamable refractory plate to the substrate is not particularly limited as long as it is abutting the end portions of the respective plates, and for example, (1) a conventional adhesive or an adhesive (hereinafter also It is said that "adhesive or the like" is applied to at least one of a substrate or a sheet to be bonded, (2) a method of directly bonding by thermal fusion without using an adhesive, and (3) an adhesive, etc. A method of temporarily attaching a plate to a portion of a substrate and/or a plate, followed by bonding by heat blasting. Further, the adhesive or the adhesive is preferably an organic binder which uses a synthetic resin such as an acrylic resin as a binder. The abutting portion at the end of each of the plates may be filled with a filler such as putty or a joint sealing material as needed to ride the joint portion 1 to fill the butt portion with the foaming fiscal coating. X, a foaming refractory plate having a small width may be laminated on the butting portion and subjected to heat fusion treatment, thereby performing joint processing. 1356865 The laminated portion may also be thermally fused and flattened after the ends of the sheets are superposed. It is also possible to overlap only the ends of the plates. The 苐2 diagram shows an example in which a filler material is applied to the butting portion. In Fig. 2, three sheets of the foamable refractory plate 2 are laminated on the substrate 1, whereby three pairs of five joint portions are formed. Next, the filler material 3 can be filled in each of the butted portions. In the present invention, a foamable refractory plate having a fibrous layer can be used as the foamable refractory plate. Thereby, since the fibrous layer can effectively absorb the molten component generated by the heat, it is possible to prevent or suppress the plate from falling off from the substrate, being displaced, and the like. The fibrous layer may be formed on one or both sides of the foamable refractory plate. Further, when a plurality of foamable refractory sheets are used, all or part of them may have a fibrous layer. The foamable refractory board of the Tanjung Fibre Trade Layer has, for example, a combination of foaming _ coating and fiberboard. The fibrous board has a board composed of, for example, organic fibers and/or fibers. 5 15

20 Organic fibers are, for example, pulp fibers, polyester fibers, a-a to acrylic fibers, ί^'polyamide fibers, vinylon fibers, polyethylene fibers, polyene F*Bn - 酉日纤维 _ υ fibers (poly Stupid and bisazole fibers), polyamide fibers, propylene fibers, cellulose fibers, etc., and woven fabrics of these fibers, non-woven fabrics. The organic fiber can effectively absorb the molten component produced by the heat, because the suppression plate (including the carbonized thermal insulation layer) is detached from the substrate and is displaced by the dislocation. Organic fiber is especially good at 15 〇t: it will not melt. Each of organic fiber boards (woven or non-woven fabrics of organic fibers). . The area of Bianli is not particularly limited, and is usually 5~300g/m2, and more 曰8~2πη^/ 2 'I. The thickness of the organic fiber board is not particularly limited to 13 3 〇~1〇〇〇#111' More reasonable is 5〇~800"m. Inorganic fibers include asbestos, glass fiber, Shixi stone, dimension, dimension, carbon fiber, carbonized stone, etc., and iron, copper, etc., because these inorganic fibers are not due to heat (four), and have the role of reinforcing materials. Therefore, it is possible to firmly hold the carbonized heat insulating layer, and suppress the wire sheet which is detached from the substrate and is dropped. In particular, when the money fibers are arranged in a mesh shape, the carbonized heat insulating layer can be more firmly reinforced, and the plate is detached from the substrate, displaced, and the like. ° f to prevent or inhibit the thickness of 10 inorganic fibers, no special ~ L5mm 'more ideally, 〇〇 - pass "1] the thickness of the fiber structure "the thickness of the machine fiber means the bundle of the _ fine 1 In the case of two or more inorganic fibers, the inorganic fibers are preferably arranged at intervals of 2 to 疋 in the arrangement of the inorganic fibers in the form of meshes 2 to 30. 15 The fibrous sheet is preferably a composite sheet of a special package of Ba Shicheng, and Inorganic fiber (4) = at least one of the structural dimensions of the machine fiber and the inorganic fiber (in which - eye shape, and in the inorganic fiber cloth, and the money fiber plugs the layer of the organic fiber woven or non-woven structure. By partially or completely reinforcing the carbonized and heat-insulating (four) materials of the mesh to form a mesh-like shape, the molten component of the rich 20 (four) is produced by the use of Qian Lin, which is caused by falling off and turning (4). Or suppressing the heat-insulating layer from the part or all of the substrate eye, the effect of the organic fiber plugging the mesh of the inorganic fiber is obtained. The mesh structure of the inorganic fiber is not easily damaged when using the foam having the fibrous layer When using a refractory board, it is especially suitable to use 14 1356865 or less. At least one method of construction. The first method is a method in which a fibrous layer is adhered to a substrate through an adhesive or an adhesive to form the layer. The second method is to make the fibrous layer the outermost layer of the layer. A method of forming the above-mentioned five-layered layer. For example, Fig. 4 shows a construction example using a foamable refractory plate having a fibrous layer, and a foaming refractory plate 2 having a fibrous layer 5 (broken line portion) on one side thereof is used. The foamable refractory plate is placed in a state in which the fibrous layer 5 is attached to the substrate 1. The first layer is formed. Then, the fibrous layer 5 (dotted line portion) is formed on one of the 10 layers from above the first layer. In the fourth embodiment, the fibrous layer 5 (dashed line portion) of the second layer is placed in contact with the first layer, but the second layer may be disposed to apply the foamed fire-resistant coating material 4 to the fiber. Further, Fig. 5 shows a construction example in which a foamed refractory layer similar to that of Fig. 4 is formed as a second layer except that a foamable refractory plate having no fibrous layer is used. Also included in the present invention. Fig. 6 is a foaming property in which both have a fibrous layer. The refractory plate is used as a construction example of the first layer and the second layer. In particular, in the aspect of Fig. 6, the fibrous layer 5 (dashed line portion) of the foamable refractory plate 2 of the first layer is in contact with the substrate 1. The fibrous layer 5 (broken line portion) of the two-layer foamable refractory plate 2 is disposed so as to be the outermost portion of the slab layer 20. That is, the fibrous layer of the second layer is covered with the foaming luminescent coating 4. In the middle, the bonding property between the foaming refractory coating 4 and the slab layer can be improved, and at the same time, the foamed carbonized layer can be surely prevented from falling off during a fire, and good fire resistance can be obtained. Fig. 7 shows that the fiber reinforced by one side is used. Foaming property of layer 5 1356865 The refractory plate is exemplified by a slab layer composed of three layers. As shown in Fig. 7, in the first layer and the second layer, the fibrous layer 5 is on the substrate side (inside) The foamable fireproof panel 2 is placed in a state of the same. In the third layer, the plate-like foaming board 5 2 as the outermost layer is disposed in a state in which the fibrous layer 5 (dotted line portion) is on the side opposite to the substrate. Next, the foaming property of the fire paint 4 is applied to the outermost layer. At this time, the foaming property is applied to at least the butted portion of the outermost layer. In the seventh embodiment, the fibrous layer 5 of the foamable refractory plate of the second layer faces the substrate side, but the foamable refractory plate (the second layer) may be disposed such that the fibrous layer 5 faces the opposite side of the substrate. 10 Second step The second step applies a foamable refractory coating to the ply to adhere at least the foaming refractory coating to the abutting portion. As shown in Fig. 3 and Fig. 4, the foamable refractory paint is adhered to the field of the butted portion (the butt portion which is the outermost layer when the plate layer is composed of a plurality of layers) including the slab layer. The foamable refractory paint may be adhered to the abutting portion, and the foamable refractory paint may be attached to substantially the entire surface or a part of the ply layer. "Ultra-fibrous refractory paint" is used in the present invention. The foamable refractory coating material is not particularly limited as long as it can be foamed and a carbonized heat-insulating layer is formed when the temperature reaches the predetermined foaming temperature due to the temperature of the week 20 such as a fire. The type of the foamable refractory paint can be appropriately selected according to the applicable portion, the material of the substrate, and the like, and a conventional thing or a commercially available product can be used as needed. Suitable foaming refractory coatings are disclosed, for example, in Japanese Laid-Open Patent Publication No. 7-276552. In Japanese Patent Disclosure 16

The adhesion (coating) of the foamable refractory coating is performed on the surface including the surface of the foamable refractory plate and the surface of the butt portion as described above. The foaming property is applied to the plate-like portion as described above. It can avoid the appearance of miscellaneous joints from the butt joints of the slabs, and it is possible to suppress the physical strength drop which occurs purely at high temperatures such as fires. When X, t is joined to the abutting portion of the plate by putty, joint sealing material, etc., the base material is not exposed in the putty or the joint (4) material during the fire or the like, so that the substrate can be reliably suppressed. The fire resistance is reduced. Even if the substrate is laminated on the curved surface, the substrate can be prevented from being exposed, so that good fire resistance can be imparted. Spraying by laminating machine, etc. 'Scratch coating and packing can also be adjusted by using a dilute solvent. Adhesive can be used in the coating of foaming refractory paint. Spraying, airless spraying, roller coating, etc. can be used. The thickness of the coating film for forming the foamable refractory paint can be appropriately set in accordance with the properties of the foamable refractory layer, the appropriate level, and the like, and is preferably 1 to 3 mm, more preferably G. 3 to 2 mm. In the coating of the foamed (four) fire paint, it is also possible to carry out the overlap coating to make the coating film a predetermined thickness. Not limited, but by improving the fire resistance (decorative layer), but by setting the initial foaming temperature to be lower than that of the foamed enamel, the initial foaming temperature of the coating of the refractory coating is not 1356865. After coating the laminated foaming refractory coating, the decorative layer can be provided as needed. By forming the decorative layer, it is possible to impart aesthetics, and it is possible to improve the foaming property and the richness of the inflamed layer. The decorative layer may be formed by a conventional construction method, and for example, it may be applied by a method of coating various coating materials, a laminated decorative film, a decorative panel, or the like. (Upper coating) Further, it is also possible to protect the above decorative layer for the main purpose, and then apply a polishing coating to form an overcoat layer. The polishing coating material is not particularly limited, and a conventional one or a commercially available product can be used. For example, an acrylic resin type, an amine group 10 acid S resin type, an epoxy resin type, a acrylonitrile resin type, or a fluororesin can be used. Such as coatings. Polishing coatings are either matt or light. The coating method of the polishing paint can be carried out according to a conventional method, and can be carried out, for example, by a coating method such as spraying, brushing, or rolling. [Examples] The following examples and comparative examples are shown to further clarify the features of the present invention. However, the invention is not limited to the embodiments. (foaming property to the manufacture of fire board)

(1) The foamable refractory plate A is sufficiently kneaded by a kneader to contain 100 parts by weight of the acrylic resin, 20 parts by weight, 75 parts by weight of melamine, 75 parts by weight of dipentaerythritol, 370 parts by weight of ammonium polyphosphate, and titanium oxide 105. The raw material mixture of the weight fraction. Then, the kneaded material and the fibrous sheet were rolled by a calender roll to prepare a foaming property against the fire plate A having a film thickness of 2 mm. Further, in the above fiberboard, a nonwoven fabric of polyester fibers was laminated on 18 1356865 glass mesh (thickness 0.18 mm, mesh interval 10 mm x l 〇 mm).

(2) The foamable refractory plate B is sufficiently kneaded by a kneader to contain a weight portion of the acrylic resin, a weight portion of melamine, a weight portion of 75 parts of dipentaerythritol, a portion of 75 parts by weight of dipentaerythritol, and an ammonium sulphate 370. A portion of the raw material mixture of the weight portion of the titanium oxide. Then, the kneaded material was rolled by a calender roll to prepare a foamed fire-resistant sheet B having a film thickness of 2 mm.

^ (3) Foaming refractory plate C Fully kneaded with a 1 gram weight knives containing acrylic acid resin, 75 parts by weight of cyanamide, 75 parts by weight of pentaerythritol, and ammonium hydride by a kneader A raw material mixture of 370 parts by weight, 1 part by weight of titanium oxide. Then, the kneaded material and the fibrous sheet were rolled by a calender roll to prepare a foamable refractory plate C having a film thickness of 1.5 mm. In the above-mentioned fibrous sheet, a non-woven fabric of polyester fibers is laminated on 15 broken meshes (thickness 0.18 mm, mesh spacing i〇mmxl〇mm).

% (4) The foamable refractory plate D is sufficiently kneaded by a kneader to contain a weight fraction of acrylic acid resin, 75 parts by weight of melamine, 75 parts by weight of dipentaerythritol, 370 parts by weight of ruthenium, and oxidation. A raw material mixture of 105 parts by weight of titanium. However, it was set up to "roll the kneaded material by a calender roll" to produce a "fired refractory plate D having a film thickness of 4 mm". (Production of Foaming Refractory Coating Material) After the 250 parts by weight of the acrylic resin (solid content: 40% by weight) and 90 parts by weight of the diluted solvent were put into the mixing and stirring tank, the mixture was mixed by a dissolver. Next, 100 parts by weight of melamine was put in, and the lignin was reconstituted. The refractory coating Αβ [I. Test Example 1] was prepared by substituting '400 parts by weight of ammonium polyphosphate and 12 parts by weight of titanium oxide and stirring until the same sentence. [Example 1] The square steel pipe to be painted (the tree is tied to the entire surface of the substrate, and the three sheets of the foamed fire-resistant plate A obtained by the above method are attached to the respective ends of the composite plate as shown in Fig. 2 The joint width of the butt joint portion is 2 mm. At this time, the surface of the foamed refractory paint A attached to the side of the synthetic fiber plate is connected to the substrate. Further, the moisture-curable amino acid vinegar-based joint sealing material is scraped with a doctor blade. The joint was filled in the butt joint. Next, the foaming refractory paint A was applied to the entire outer peripheral surface of the foamable refractory plate a, and the dried film thickness was 〇5 mm, and it was protected from drying for 7 days. The test body produced by the above method is subjected to a heating test. The heating test is performed by heating in an electric furnace for 6 minutes according to the standard curve specified in "4. Heating grade; Fig. 1" of the fire resistance test method JIS A1304 of the building structure. After the heating test, the appearance and expansion ratio of the test body were evaluated. Table 1. The evaluation results of the appearance, the expansion ratio, and the substrate temperature are shown in Table 1. The evaluation methods and evaluation criteria are as follows: Appearance after heating The appearance after heating was visually confirmed (with or without cracks, cracks, In the evaluation, the evaluation is performed in the fourth stage (◎>gt;〇>Λ>Χ), which is marked as "◎" with no abnormality at all, and marked as "X". The foaming ratio was measured for the thickness of the foamed carbonized layer after heating, and the expansion ratio with respect to the initial thickness was calculated. The substrate temperature was confirmed from the substrate temperature measurement data during heating. The evaluation criteria were ◎: 550 ° C or less. 〇: 550 ° C or lower 600. (: Δ: 600 ° C or more and 650 ° C or less X: 650 ° C or more. [Table 1] Example 1 Example 2 Appearance after heating ◎ ◎ Expansion ratio 14 times 14 Double substrate temperature ◎ ◎ Shedding/dislocation test Prepare 225mmx450mmxl.6mm steel plate, apply acrylic resin adhesive from the upper end of the steel plate to 150mm, and attach the foaming refractory plate A to cover the upper end of the steel plate to 1 50mm place. Then 'paint the foaming refractory coating a on the surface of the board A to make the dry film thickness 〇5mm, and protect the drying for 7 days. Use the propane gas burner flame (about 1000. 〇 heating by the above method The surface of the test piece that had been taken was about 5 minutes, and the peeling and the misplacement caused by the heating were visually confirmed. As a result, no particular abnormality was observed. (Example 2) Except that the foamable fireproof board B was used as A test piece was produced in the same manner as in Example 1 except for the foamable refractory plate, and a heating test was performed. & and [Π. Test Example 2] (Example 3) The base material was a steel pipe which was subjected to rust-proof coating (section 3s〇) 35〇mm, thickness 19mm, length 12〇〇mm). After the acrylic resin adhesive is applied to the entire surface of the substrate by a roller, three pieces of the foamed refractory plate D of the acid by the above method are extended to the respective ends of the butt plate shown in FIG. Hehe. 〇 U-attachment Next, the foamable refractory paint A was applied to the entire outer peripheral surface (including the butted portion) to which the foamable refractory plate d was attached, and the dried film thickness was 1 mm, and the drying was protected for 7 days. The test body produced by the above method was subjected to a heating test. Heating The temperature test system was carried out by heating in an electric furnace for 18 minutes according to the standard curve specified in "4. Heating grade; drawing" of the fire resistance test method JIS A1304 of the building structure. After the heating test, the appearance, the expansion ratio, and the substrate temperature of the test piece were evaluated. Table 2 shows the evaluation results of the appearance, the expansion ratio, and the substrate temperature. These evaluation methods and evaluation criteria are as follows. Appearance after heating The appearance after heating (with or without cracks, cracks, peeling, etc.) was visually confirmed. The evaluation is marked as "◎" with no abnormality at all, and the marked "X" is considered to have a significant abnormality (? > gt; 〇 > △ >><) 1356865

15 X · 650〇C or more. [Table 2] Example 3 Example 4 Example 5 Implementation · Appearance after heating 〇〇〇 Foaming magnification 15 times 13 times 15 times 13 times 'Base temperature Δ 〇〇 (d (Example 4) Evaluation. The foaming ratio was measured as the thickness of the foamed carbonized layer after heating, and the expansion ratio with respect to the initial thickness was calculated. The substrate temperature was the highest value from the substrate temperature measurement data sheet during heating. The evaluation standard was ◎: 550 ° C The following 〇: 550 ° C below 600 ° C below △ : 600 ° C above 650 ° C below

Example 7 Comparative Example 1 ◎ X 12 times 20 times ◎ X The base material was a square steel tube (^35 〇 _ 35 〇 mm, thickness 19 surface, length measurement coffee) which was subjected to anti-recording. After the resin adhesive is applied to the entire surface of the substrate by (9), three pieces of the creases of the butt plate as shown in Fig. 4 are attached by squaring, 4'+' foaming. The surface of the refractory plate A-attached synthetic fiber f layer is bonded to the substrate. Then, the foot-foamed refractory plate A is bonded to the respective butterfly portions of the butt-joint plate as shown in Fig. 4, after the entire surface of the hair-resistant fire-resistant plate is used by the roller. As shown in Fig. 4, the outer layer is bonded to the butt joint of the inner panel. Further, the surface to which the synthetic fiber layer is applied is the inner side of 23 20 1356865, and the foaming refractory paint is applied to the entire outer peripheral surface of the outer layer plate (three abutting portions), and the dried film thickness is dried. 7 days. A pair of test bodies produced by the above method were subjected to a heating test in the same manner as in Example 3. Table 2 shows the results. (Example 5)

The base material is a square steel pipe that has been rust-proof coated (section 35 〇 X 3 50 mm, thickness! 9 mm, length is included). After the acrylic resin 10 resin adhesive is applied to the entire surface of the substrate by a roller, three sheets of the foamed refractory plate A obtained by the above method are obtained as shown in Fig. 5, and the ends of the butt plate are Fit it together. At this time, the foaming chemical coating A is attached to the surface of the synthetic fiberboard side and connected. v. Soil 15 Next, after the acrylic resin adhesive is applied to the entire outer peripheral surface of the foamable refractory plate A by a roller, three sheets of the foamable refractory plate 8 are as shown in Fig. 4 The ends are fitted together. As shown in Fig. 5, the outer layer is attached: a board abutting portion spanning the inner layer. Further, the foamable refractory paint A was applied to the outer peripheral surface of the outer layer (including the butted portion), and the dried film had a thickness of 1 mm and was protected from drying for 7 days. (Example 6) 20 The base lining was a square steel pipe which was subjected to rust-proof coating (section 35 〇 350 mm, thickness 19 mm, length 12 〇〇 mm). After the acrylic resin adhesive is applied to the entire surface of the substrate by a roller, three foamed refractory plates of the above-mentioned method are used, and the ends of the butt plates are as shown in FIG. Get combined. At this time, the foamable refractory paint A was attached to the surface 舆 24 1356865 on the side of the fiberboard. Next, after the acrylic resin adhesive is applied to the entire outer peripheral surface of the foamable refractory plate A by a roller, the three foamable refractory plates a are bonded to the respective end portions of the butt plate as shown in FIG. . As shown in Fig. 6, the outer layer is bonded to the board abutting portion of the inner layer. Further, the surface to which the fibrous layer is laminated is formed inside. Further, the foamable refractory paint A was applied to the entire outer surface (including the butted portion) of the outer layer (4), and the dried film thickness was 1 mm, and was protected from drying for 7 days. (Example 7)

1〇 The base material is a square steel pipe that has been rust-proof coated (section 350mmX 3 50mm, thickness: 9mm, length! 2〇〇mm). After the acrylic resin adhesive is applied to the entire surface of the substrate by a roller, three sheets of the foamable refractory plate C obtained by the above method are attached to each end portion of the butt plate as shown in FIG. . At this time, the surface of the foamable refractory paint C attached to the side of the fiberboard is connected to the substrate 15. Next, after the acrylic resin adhesive is applied to the entire outer peripheral surface of the foamable refractory plate C by a roller, three sheets of the foamable refractory plate are attached to the respective end portions of the butt plate as shown in FIG. Hehe. Here, the surface of the foamable refractory plate c which is applied to the fibrous layer is inside. Further, as shown in Fig. 7, the foamable refractory plate c (intermediate laminate) in the step is bonded to the plate abutting portion which spans the inner layer. Next, after the acrylic resin adhesive is applied to the entire outer peripheral surface of the intermediate layer by a roller, the three foamable refractory sheets C are bonded to each end portion of the butt plate as shown in Fig. 7. Here, the foamable refractory plate c is attached to the synthetic fiber 25 1356865. The surface of the layer is the outer side. Further, as shown in Fig. 7, the foamable refractory plate C (outer layer) in this step is bonded to the plate abutting portion which spans the intermediate layer. Further, the foamable refractory paint A was applied to the entire outer peripheral surface of the outer layer sheet (including the butted portion)' and the dried film thickness was 〇5 mm, and was protected from drying for 7 days. The test body produced by the above method was subjected to a heating test in the same manner as in Example 3. Table 2 shows the results. In Example 7, the appearance after heating was not considered to be abnormal at all, and more favorable results were obtained. (Comparative Example 1)

10 The base material is a square steel tube (35 〇 35, mm 19 mm, length biliary). The foamable refractory paint A was brushed on the entire outer peripheral surface of the substrate with a bristles, and the dried film thickness was 5 mm, and then dried for 7 days. / The test piece produced by the above method was subjected to the same heating test as in Example 3. Table 2 shows the results. Example 丨+ can't get full 15 results. [Simplified description of the drawings] The phantom system shows a stress generated inside the panel, and the ash, the joint sealing material, and the like at the joint portion are pulled to the plates on both sides, and cracks, cracks, and the like are generated. A cross-sectional view of the test body produced in 2. Fig. 3 is a cross-sectional view showing the test bodies produced in Examples 1 to 3. Fig. 4 is a cross-sectional view showing a test body produced in Example 4. Fig. 5 is a front view of the test body produced in Example 5. Fig. 6 is a front view of the test body produced in Example 6. 26 1356865

Fig. 7 is a cross-sectional view showing a test body produced in Example 7. [The main components of the diagram represent the symbol table] 1.. Substrate 4... Foaming flammable coating 2.. Foaming refractory board 5...Fibrous layer 3.. Filling material 27

Claims (1)

1356865 94KM74M application _t patent scope revision date: September 9th i6曰10, the scope of application patent: 1. The method of forming a foaming bonfire layer is used to form a foaming property against the fire layer, and Including: the first step 'uses 1 or 2 or more of the foaming property on the fire plate, the - surface 5 butts the 4th end of each of the 4' sides, and the surface layer of the single layer or the plurality of layers is formed on the substrate. Further, in the first step, a plate having a fibrous layer on one or both sides thereof is used as the foaming fiscal plate, and the layer is formed such that the fiber layer is the outermost layer of the plate layer. And 10, a second step of applying a foaming resistant strand to the above-mentioned ply layer to adhere at least the foaming resistant material to the mating portion. 2. The method of claim 4, wherein the foaming refractory layer is used as the foaming refractory board: (1) when the layer is a single layer, a plate having a fiber-fibrous layer on both sides thereof as the foamable refractory plate; (2) when the plate layer is a single layer, a plate having a fibrous layer on one or both sides thereof is used as the above-mentioned hair The foamed refractory plate is formed into the above-mentioned slab layer so that the fibrous layer becomes the outermost layer of the slab layer and the fibrous layer is adhered to the base material through an adhesive or an adhesive. 3. The method for forming a foamable refractory layer according to the first aspect of the invention, wherein the slab layer is composed of two or more layers. 4. The method for forming a foamable refractory layer according to the third aspect of the patent application is to modify the patented scope of the patent application of the above-mentioned patent application.曰期: In the state of the docking section in September, 100, the above-mentioned foaming property is laminated on the fire board. 5. The method of forming a foamable refractory layer according to claim 3, wherein each of the layers constituting the layer is 0.5 to 4 mm. 6. The method for forming a foamable refractory layer according to claim 1, wherein the thickness of the layer is 0.5 to 7 mm. 7. The method of forming a foaming fissile layer according to claim 1, wherein the foaming property comprises a binder, a fueling agent, a foaming agent, a carbonizing agent, and a filler to the fire plate. 8. The method for forming a foamable refractory layer according to claim 1, wherein the foaming chemical coating material comprises a binder, a flame retardant, a foaming agent, a carbonizing agent, and a filler. 9. The method of forming a foamable refractory layer according to the first aspect of the invention, wherein the substrate comprises at least one of a curved surface and a curved portion. The method for forming a foamable refractory layer according to claim 9, wherein at least one of the base material including the curved surface and the curved portion is at least one of a square steel tube, a round steel tube, and a bismuth steel. 11. The method for forming a foamable refractory layer according to claim 9, wherein the first step and the second step are carried out in a field including at least the curved surface and/or the curved portion. 29