JP2011080222A - Noncombustible heat-insulating panel and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a noncombustible heat-insulating panel with high rigidity, increasing strength in a thickness direction, and also to provide a method for manufacturing the noncombustible heat-insulating panel. <P>SOLUTION: A strip-shaped raw fabric 1 of rock wool, which has the elongation direction of a fiber 1a elongated in a longitudinal direction, is cut along a cutting line 2 orthogonal to the elongation direction of the fiber 1a, so that a plurality of core material blocks 10 are obtained. The predetermined number of core material blocks 10 are laterally turned by an angle of 90°, so that the elongation direction of the fiber 1a is changed into a vertical direction, and the core material blocks 10 are juxtaposed and integrated together by means of a connecting member 20, so that a core material unit 11 is obtained. A steel plate 30 is fixed on each of the front and back sides of the core material unit 11, so that the noncombustible heat-insulating panel 40 with the core material unit 11 having the elongation direction of the fiber 1a directed along the thickness direction is obtained. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a non-combustible heat insulating panel and a method for manufacturing the same.

  The non-combustible insulation panel is installed for the purpose of preventing the spread of fire in the event of a fire.For example, it is installed as a partition that divides a relatively large building such as a warehouse or factory into a plurality of spaces with a certain area. Or installed as an outer wall panel of a building. Such a non-combustible heat insulation panel is specified by the Building Standards Law to pass a fireproof material performance test according to a predetermined standard, and as a structure thereof, a heat insulation material such as rock wool is cored between two steel plates. A sandwich structure sandwiched as a material is generally used (Patent Document 1).

JP 2009-7874 A

  Rock wool, which is used as a heat insulating material for the core material, is an inorganic artificial mineral fiber that is produced by mixing lime etc. with glassy iron furnace slag obtained by the iron making process and melting it at a high temperature. It is obtained by solidifying the state of the product by blowing it into a string. As for this rock wool, a belt-like material in which the extending direction of the fiber is a long direction is a raw material (hereinafter referred to as a raw fabric), and the raw fabric is predetermined in a state where the long direction is divided. It is cut into a rectangular panel of length to make a core material.

  A non-combustible heat insulating panel is obtained by bonding steel plates to both sides of the core material obtained in this way, but in this panel, the strength in the thickness direction is weak in the longitudinal direction where the fibers of the core material are weakly connected. There is a problem that the rigidity of the panel itself is lowered, for example, the core material extends in the thickness direction.

  Therefore, an object of the present invention is to provide a non-combustible heat insulating panel having a high rigidity and improved strength in the thickness direction, and a method for manufacturing the same.

  The non-combustible heat insulating panel of the present invention is made of a heat insulating material, and integrally connects a plurality of core material blocks arranged in parallel with the fiber extending direction along the thickness direction, and the plurality of arranged core material blocks. And a metal plate fixed to both sides in the thickness direction of the plurality of core material blocks connected by the connection member.

  Next, in the method for producing a non-combustible heat insulating panel according to the present invention, the raw material of the strip-shaped heat insulating material in which the fiber extending direction extends in the longitudinal direction is cut along a cutting line orthogonal to the fiber extending direction. A raw fabric cutting step for obtaining a plurality of core material blocks and a predetermined number of the core material blocks are juxtaposed in a state where the fiber extending direction is along the thickness direction, and these core material blocks are integrated by a connecting member. It comprises a core block connecting step for connecting, and a metal plate fixing step for fixing metal plates to both sides in the thickness direction of the plurality of core blocks connected by the connecting member.

  The incombustible heat insulating panel obtained by the present invention has high rigidity because the fibers of the core block extend in the thickness direction, and thus the strength in the thickness direction is improved. In addition, since a plurality of core blocks are integrally connected by a connecting member, the core blocks are not separated and handled. For this reason, the operation | work which adheres a metal plate to a some core material block by a metal plate adhering process becomes easy, and improvement of productivity is achieved.

It is a perspective view of the rock wool original fabric used with the manufacturing method concerning one embodiment of the present invention. It is an end view of the core material block cut out from the rock wool original fabric. It is an end elevation of a state where the core material block is rolled over by 90 °. It is a perspective view in the state where a plurality of core material blocks rolled by 90 degrees were arranged in parallel. It is a perspective view which shows the connection member of a some core material block. It is the (a) end view and the (b) sectional view showing the state where the slot which press-fits a connecting member is formed in the end face of a plurality of core material blocks of a parallel state. It is sectional drawing which shows the state which press-fitted the connection member to the core material block. It is a perspective view of a core material unit obtained by integrally connecting a plurality of core material blocks with a connecting member. It is a perspective view of the incombustible heat insulation panel obtained with the manufacturing method of one embodiment of the present invention.

  Hereinafter, with reference to drawings, the manufacturing method of the nonflammable heat insulation panel concerning one embodiment of the present invention is explained in order of a process.

(1) Raw fabric cutting step FIG. 1 shows a raw fabric of rock wool which is a heat insulating material. The rock wool original fabric 1 is a belt having a predetermined width, and the fibers 1a extend in the longitudinal direction (Y direction in FIG. 1). In the manufacturing method of one embodiment, first, a plurality of cutting lines 2 extending in the X direction orthogonal to the longitudinal direction in which the fibers 1a extend are set at equal intervals in the longitudinal direction with respect to the rock wool original fabric 1. And the rock wool original fabric 1 is cut | disconnected along the cutting line 2, and the several rectangular parallelepiped core material block 10 is obtained.

(2) Core Material Block Connecting Step FIG. 2 shows a plurality of core material blocks 10 in a state cut out from the rock wool original fabric 1. In these core material blocks 10, the fibers 1a extend in the Y direction. In the core material block connecting step, first, a predetermined number of core material blocks 10 are turned over by 90 ° as shown in FIG. 3, and the fibers 1a are vertically oriented (in FIG. 1, the Z direction corresponds to the thickness direction). It will be in the state extended to.

  Next, a predetermined number of rolled core blocks 10 in a state in which the fibers 1a extend in the Z direction, that is, the thickness direction, are adjacent to each other as shown in FIG. 4 and in the longitudinal direction (X direction). Make sure that the ends are aligned.

  Subsequently, a predetermined number of core material blocks 10 in a parallel state are integrally connected by a connecting member 20 shown in FIG. 5 to form a panel-shaped core material unit 11 shown in FIG. The connecting member 20 is a plate material having a substantially U-shaped cross section in which the side plate portion 22 extends at right angles in the same direction from both ends of the central plate portion 21, and corresponds to the length in the parallel direction of the plurality of core material blocks 10 arranged in parallel. It has a length. Each side plate portion 22 of the connecting member 20 is formed with a plurality of tapered protruding protrusions 22a whose thickness decreases toward the tip.

  In order to connect a plurality of core material blocks 10 with this connecting member 20, as shown in FIG. 6, a pair of parallel grooves into which side plate portions 22 are press-fitted into both end faces of the aligned core material blocks 10 are provided. As shown in FIG. 7, the side plate portions 22 of the connecting member 20 are press-fitted into the grooves 10a until the central plate portion 21 contacts the end surface. The connecting member 20 is prevented from coming off when the retaining protrusions 22a are embedded in the core material block 10, so that the connected state of the core material block 10 is maintained. In order to make the central plate portion 21 and the core block 10 flush with each other, as shown in FIGS. 6B and 7, the central plate portion 21 is provided between the grooves 10 a on both end surfaces of the core block 10. It is preferable to form a strip-like recess 10b corresponding to the plate thickness.

  The connecting member 20 is fixed across all the core material blocks 10 in parallel, and the plurality of core material blocks 10 are integrally connected via the connecting member 20 as shown in FIG. The unit 11 is configured as a fixed unit.

(3) Metal plate fixing step Next, as shown in FIG. 9, the front and back surfaces of the panel-shaped core material unit 11 in which a predetermined number of core material blocks 10 are connected by a connecting member 20, that is, both sides in the thickness direction. The steel plate 30 is adhered and fixed to the surface with an appropriate adhesive. Thereby, the rectangular incombustible heat insulating panel 40 of one embodiment is obtained.

(4) Effects of One Embodiment According to the non-combustible heat insulating panel 40 obtained by the above manufacturing method, the fibers 1a of the core block 10 extend in the thickness direction, and therefore the fibers extend in the longitudinal direction. In comparison, the strength in the thickness direction is significantly improved and has high rigidity.

  Moreover, according to the said manufacturing method, since the several core material block 10 cut out from the rock wool original fabric 1 is integrally connected by the connection member 20, and constitutes one core material unit 11, the core material block 10 is separated. It is easy to handle. As a result, the work of fixing the steel plate 30 to the core material unit 11 composed of the plurality of core material blocks 10 in the metal plate fixing process is facilitated, and productivity is improved.

  The connecting member 20 is an example of the connecting member of the present invention, and the connecting member may be in any form as long as the plurality of core block 10 can be integrally connected. In addition, the raw material of the core block 10 is the rock wool raw fabric 1, but the raw material of the heat insulating material is not limited to rock wool, and in the present invention, the fiber extending direction extends in one direction (longitudinal direction). Can be used.

DESCRIPTION OF SYMBOLS 1 ... Rock wool original fabric 1a ... Fiber 2 ... Cutting line 10 ... Core material block 11 ... Core material unit 20 ... Connecting member 30 ... Steel plate (metal plate)
40 ... Incombustible thermal insulation panel

Claims (2)

A plurality of core blocks made of a heat insulating material and arranged in parallel in a state in which the fiber extends along the thickness direction;
A connecting member that integrally connects the plurality of parallel core blocks, and
A metal plate fixed to both sides in the thickness direction of the plurality of core blocks connected by the connecting member;
A non-combustible thermal insulation panel comprising: An original fabric cutting step of obtaining a plurality of core block by cutting the original fabric of the strip-shaped heat insulating material in which the fiber extending direction extends in the longitudinal direction along a cutting line orthogonal to the extending direction of the fibers;
A core block connecting step in which a predetermined number of the core blocks are juxtaposed in a state in which the direction in which the fibers extend extend along the thickness direction, and the core blocks are integrally connected by a connecting member;
A metal plate fixing step of fixing metal plates on both sides in the thickness direction of the plurality of core block connected by the connecting member;
The manufacturing method of the nonflammable heat insulation panel characterized by providing.

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