JP2001032993A - Fireproof covering material and duct unit provided with fireproofing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable manufacture with simple processes, and reduce manufacturing costs by laminating nonwoven fabric composed of flame retardant fiber on a surface of a ceramic wool, laminating metallic lath on a surface of the nonwoven fabric, and integrate them with each other. SOLUTION: A fireproofing covering material 1 having a prescribed thickness is provided with a ceramic wool 2 formed in a rectangular shape, nonwoven fabric 3 laminated on the surface of the ceramic wool 2, and a metallic lath laminated by covering the nonwoven fabric 3, and is formed by integrating them with each other. In such the constituting fireproof covering material 1, its manufacturing processes the simplified, and manufacturing costs are reduced in association with the manufacturing processes. Since the surface of the ceramic wool 2 is covered with the nonwoven fabric 3 and the metallic lath 4 in the case of executing work for the fireproof covering material 1, separation of the ceramic wool 2 is prevented, and thereby, the execution is simply carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire-resistant coating material, and more particularly to a fire-resistant coating material attached to a surface of an air conditioning duct or the like.

[0002]

2. Description of the Related Art Conventionally, in air-conditioning ducts and the like, the surface thereof has been coated with a fire-resistant coating material in order to improve the fire resistance. As the refractory coating material, a material having a structure in which ceramic wool having a predetermined thickness is sewn with a metal wire is known.

[0003]

However, in such a conventional refractory coating material, in the manufacturing process,
Since it is necessary to sew a metal wire to ceramic wool, the manufacturing process is complicated, and the manufacturing cost is high.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a refractory coating material which can be manufactured by a simple process and has a low manufacturing cost.

[0005]

According to a first aspect of the present invention, there is provided a fire-resistant coating material comprising a nonwoven fabric made of flame-retardant fibers laminated on a surface of ceramic wool in order to achieve the above-mentioned object. It is characterized in that a metal lath is laminated on the surface of the nonwoven fabric and these are integrated. According to a second aspect of the present invention, there is provided a fireproof covering material, wherein folded portions are formed at both ends of the substantially U-shaped fastener according to the first aspect, and the metal fastener is attached to the metal lath from both folded portions. The metal lath, the nonwoven fabric, and the ceramic wool are integrated by piercing the ceramic wool through the nonwoven fabric and the nonwoven fabric. According to a third aspect of the present invention, there is provided a fire-resistant covering material, wherein the folded portion of the metal fastener according to the second aspect is located at a substantially middle portion in a thickness direction of the ceramic wool. . According to a fourth aspect of the present invention, there is provided a fireproof covering material, wherein the folded portion of the metal fastener according to the second aspect is engaged with a back side of the ceramic wool. According to a fifth aspect of the present invention, there is provided a jig for fixing a fire-resistant coating material, comprising laminating a nonwoven fabric made of flame-retardant fibers on the surface of ceramic wool and laminating a metal lath on the surface of the nonwoven fabric. By piercing the ceramic wool by penetrating the metal lath and the nonwoven fabric with the metal-shaped clasp, these metal laths, the nonwoven fabric, and when forming a fire-resistant coating material that integrates the ceramic wool, The both ends of the clasp, which are disposed on the back side of the ceramic wool and protrude from the back side of the ceramic wool, are bent to form a folded portion, so that both ends of the clasp are formed of the ceramic wool. It is characterized by being made to engage with the back surface. According to a sixth aspect of the present invention, there is provided a jig for fixing a refractory coating material according to the fifth aspect.
A plurality of recesses are formed on the surface of the fixing jig according to the above, and the folded portion is formed by guiding both ends of the clasp into the recesses. And A duct unit according to a seventh aspect of the present invention is characterized in that the fireproof covering material according to any one of the first to fourth aspects is fixed to an outer peripheral surface.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention. In this figure, reference numeral 1 denotes a refractory coating material.

The fire-resistant coating material 1 according to the present embodiment has a predetermined thickness, a rectangular ceramic wool 2 and a nonwoven fabric laminated on the surface thereof (for example, from a flame-retardant polyester fiber). And a metal lath 4 laminated so as to cover the nonwoven fabric 3, and these are integrated.

The refractory coating material 1 according to the present embodiment, which is configured as described above, is formed by laminating the nonwoven fabric 3 and the metal lath 4 on the ceramic wool 2 and integrating them. Is simplified, and accordingly, the manufacturing cost is reduced. The refractory coating material 1 covers the front surface of the duct in a state where the exposed surface of the ceramic wool 2 is in contact with the surface of the duct or the like. A plurality of fixtures to be fixed are penetrated through the refractory coating material 1, and these fixtures are welded to the duct to fix the refractory coating material 1 to the surface of the duct. And

When applying such a fire-resistant coating material 1,
Since the surface of the ceramic wool 2 is covered with the nonwoven fabric 3 and the metal lath 4, the ceramic wool 2 is prevented from peeling off, so that the construction is easily performed. In addition, even after construction, ceramic wool 2
Since the exposed portion of the ceramic wool 2 is minimized, the fibers of the ceramic wool 2 fall very little, and the vicinity of the construction site is not stained.

Next, an example of the fixing structure of the above-described ceramic wool 2, non-woven fabric 3, and metal lath 4 is shown in FIG.
This will be described with reference to FIG.

In this fixing structure, a metal wire is bent into a substantially U-shape to form a fastener 5, and both ends of the fastener 5 are bent to form a folded portion 5a. Both ends of these fasteners 5 are inserted from the stitches of the metal lath 4 to penetrate the nonwoven fabric 3 and are inserted into the ceramic wool 2. When the insertion operation is stopped at the time when the intermediate portion of each of the fasteners 5 is brought into contact with the metal lath 4, the folded portion 5a of each of the fasteners 5 is cut into the ceramic wool 2 and fixed. ,
The ceramic wool 2, the nonwoven fabric 3, and the metal lath 4 are fixed in a laminated state. Therefore, the ceramic wool 2, the nonwoven fabric 3, and the metal lath 4 can be fixed in a laminated state by a simple operation such as inserting the fastener 5, so that the production can be performed by a simple operation.

Next, another example of the fixing structure of the above-described ceramic wool 2, nonwoven fabric 3, and metal lath 4 will be described with reference to FIG.

The fixing structure shown in FIG. 3 uses a fastener 6 in which both ends of the above-mentioned fastener 5 are formed longer, and after both ends of the fastener 6 are projected to the back side of the ceramic wool 2. By bending these both ends in an arbitrary direction using an appropriate jig, a folded portion 6a is formed, and these folded portions 6a are engaged with the back surface of the ceramic wool 2. is there.

With such a fixing structure, the refractory coating 1 can be manufactured by a simple operation, similarly to the fixing structure shown in FIG. By supporting the exposed surface of the ceramic wool 2 at a short pitch by 6a, an action of suppressing the separation of the fibers of the ceramic wool 2 can be obtained.

On the other hand, as an example for fixing the fastener 6 shown in FIG. 3 described above, if a fixing jig 7 as shown in FIG. 4 is used, simple attachment becomes possible.

That is, the fixing jig 7 is formed by forming a large number of recesses 7a on a metal plate. The fixing jig 7 is placed on the exposed surface of the ceramic wool 2 of the refractory coating material 1. In this state, the fastener 6 is inserted into the refractory coating material 1 and both ends thereof are pressed against the fixing jig 7 in such a state. 4B, both ends are inserted into the recess 7a of the fixing jig 7 and guided by the inner wall surface of the recess 7a, as shown by arrows in FIG. Once formed, the fixation described above is performed. The concave portion 7a has various shapes such as a spherical shell shape or a polygonal pyramid shape such as a triangular pyramid.

When such a fixing jig 7 is used, the fastener 6 is inserted into the refractory coating material 1 in advance, and both ends thereof are projected from the exposed surface of the ceramic wool 2. The above-mentioned fixation is also possible by inverting the refractory coating material 1, turning both ends of the fastener 6 upward, and pressing the fixing jig 7 on both ends of the fastener 6. .

By using such a fixing jig 7, the folded portions 6a at both ends of each fastener 6 can be easily formed, and the formation of the fireproof covering member 1 can be simplified. it can.

On the other hand, each refractory coating material 1 as described above is
As shown in FIG. 5, a duct unit is previously formed on the surface of the duct 8 before construction by a fixing tool 9 such as an electric welding pin, and a plurality of the duct units are carried into a construction site and assembled. By covering the connecting portion with the above-described fire-resistant coating material 1, a duct with a fire-resistant coating can be constructed.

As described above, by using the duct unit provided with the fireproof coating, the work at the construction site can be simplified, and the construction work of the duct unit can be simplified. In addition, since the work position of the duct is usually a work at a high place, the work at the high place is simplified, which is advantageous in security.

The various shapes, dimensions, and the like of each component shown in each of the above embodiments are merely examples, and can be variously changed based on design requirements and the like. For example, the material and wire diameter of the metal lath 4 described in the above embodiment, the fineness of the mesh, and the like, and the fastener 5 (6)
It is possible to arbitrarily set the number of attachments of the fixtures 9.

[0022]

Since the present invention is constructed as described above, it is constituted by laminating nonwoven fabric and metal lath on ceramic wool and integrating them.
The manufacturing process is simplified, and the manufacturing cost is accordingly reduced. In addition, by covering the surface of the ceramic wool constituting the fire-resistant coating with a nonwoven fabric and a metal lath, peeling of the ceramic wool can be prevented, thereby simplifying the construction of the fire-resistant coating. Can be.

Further, even after the application, the exposed portion of the ceramic wool can be minimized. As a result, the fibers of the ceramic wool can be prevented from dropping, and the vicinity of the application site is not stained. .

The duct unit is constructed by attaching a refractory coating material to the duct before the construction in advance, thereby simplifying the work at the construction site of the duct, shortening the construction period, and performing work at high places. As a simple matter, the safety of workers can be improved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing one structural example of the refractory coating material of the present invention.

FIG. 3 is a longitudinal sectional view showing another example of the structure of the refractory coating material of the present invention.

FIGS. 4A and 4B show an example of a fixing jig used for manufacturing the fireproof covering material of the present invention, wherein FIG. 4A is an external perspective view and FIG. 4B is a longitudinal sectional view of a main part.

FIG. 5 shows another embodiment of the present invention, and is an external perspective view showing a duct unit coated with a refractory coating material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fireproof coating material 2 Ceramic wool 3 Nonwoven fabric 4 Metal lath 5 Clasp 5a Folded part 6 Clamp 6a Folded part 7 Fixing jig 7a Depression 8 Duct 9 Fixture

Claims (7)

[Claims] 1. A fire-resistant coating material comprising a nonwoven fabric made of flame-retardant fibers laminated on the surface of ceramic wool, and a metal lath laminated on the surface of the nonwoven fabric to integrate them. 2. A folded portion is formed at both ends of a substantially U-shaped clasp, and the clasp is pierced into the ceramic wool by penetrating the metal lath and the nonwoven fabric from both folded portions. The refractory coating material according to claim 1, wherein the metal lath, the nonwoven fabric, and the ceramic wool are integrated. 3. The fire-resistant covering material according to claim 2, wherein the folded portion of the fastener is located at a substantially middle portion in the thickness direction of the ceramic wool. 4. The fire-resistant covering material according to claim 2, wherein a folded portion of the fastener is engaged with a back side of the ceramic wool. 5. A nonwoven fabric made of flame-retardant fibers is laminated on the surface of ceramic wool, and a metal lath is laminated on the surface of the nonwoven fabric, and a substantially U-shaped fastener is passed through the metal lath and the nonwoven fabric. By piercing the ceramic wool and forming a refractory coating material obtained by integrating the metal lath, the nonwoven fabric, and the ceramic wool, the ceramic wool is disposed on the back side of the ceramic wool. By bending both ends of the fastener protruding to the rear surface side to form a folded portion, both ends of the fastener are engaged with the rear surface of the ceramic wool. Jig for fixing refractory coating material. 6. A plurality of concave portions are formed on the surface of the fixing jig, and the folded portions are formed by guiding both ends of the clasp into the concave portions. The jig for fixing a refractory coating material according to claim 5, characterized in that: 7. A duct unit, wherein the refractory covering material according to claim 1 is fixed to an outer peripheral surface.