JPH05124123A - Manufacture of panel for building material - Google Patents

Abstract

PURPOSE:To manufacture a panel for building, which forms a clearance between the panel for building and a foamed resin-like panel, is light-weight and has excellent heat-resisting properties and has high adhesion with a wall material such as concrete, easily by using preformed particles having minimum diameters larger than the width of recessed sections. CONSTITUTION:The inside of a cavity section 4 is filled with preformed particles 11 composed of foamed polystyrene through a fill opening 5. The preformed particles 11 are formed in an approximately spherical shape at that time, and values larger than the width of recessed sections 7 for aggregate are selected as the minimum diameters of the particles 11. Saturated steam at specified pressure is introduced through each hollow section 2b, 3b, and the preformed particles 11 in the cavity section 4 are heated and foamed, thus mutually fusing each preformed particle 11..., then obtaining a panel for a building material. Ones of aggregate 10 are buried in an approximately tabular panel made of foamed resins in approximately parallel in the obtained panel for the building material, and clearances are formed among wires 8 as aggregate 10 projected from a female mold 2 and the panel made of the foamed resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is used as a wall material in a wall made of concrete, mortar, or the like.
The present invention relates to a method for manufacturing a building material panel that is also used as a concrete formwork.

[0002]

2. Description of the Related Art As a building material panel as described above, as disclosed in Japanese Utility Model Publication No. 1-19703, there is known a panel made by attaching a foam resin panel to a veneer plate.

However, when a wall is produced using the building material panel as described above, the building material panel is arranged to face the form at a predetermined interval, and concrete is placed between them. Since the foamed resin panel repels water, the bonding force between the foamed resin panel and the concrete is weak, which causes a problem that they are easily separated.

Therefore, as a building material panel that solves the above problems, one of the aggregates formed by three-dimensionally assembling linear bodies such as wire is embedded in one surface of a foamed resin panel to expose the above. It is considered that the linear body enhances the bonding force between the concrete and the building material panel.

As the above-mentioned structure of the aggregate, a pair of grid-like linear bodies are opposed to each other in parallel and the linear bodies are connected to each other.

Further, in such a method for manufacturing a panel for building materials, one of the aggregates obtained by three-dimensionally assembling the linear bodies is formed into a male mold in foam molding, and the width of the aggregate into which the linear bodies fit is formed. A method has been conceived in which, after fitting in the concave portion, the cavity formed between the male mold and the female mold is filled with pre-expanded particles made of an expandable resin and then heat-foamed.

[0007]

However, in the panel for building material manufactured by the above method, as shown in FIG. 8, since the pre-expanded particles enter the concave portion and are foam-molded, the panel 21 made of the foamed resin is formed. A wall 23 made of foamed resin is formed between the linear body 22 and the linear body 22.

Thus, when such a building material panel is used as a wall material, concrete cannot enter between the linear member 22 and the foamed resin panel 21, so that the concrete and the foamed resin panel 21 are lined. There is a problem that the foamed resin panel 21 and the concrete are weakly bonded to each other because they cannot be integrated with each other via the sheet 22.

[0009]

In order to solve the above-mentioned problems, the method for manufacturing a building material panel according to the present invention uses one of the aggregates formed by three-dimensionally assembling the linear bodies as a male mold in foam molding. After being fitted into a concave portion having a width in which the above-mentioned linear body is fitted, the cavity formed between the male mold and the female mold,
A method for manufacturing a building material panel, comprising filling pre-expanded particles of an expandable resin and then heat-foaming the pre-expanded particles, characterized in that the pre-expanded particles having a minimum diameter larger than the width of the recess are used. I am trying.

[0010]

According to the above method, since the pre-expanded particles have the smallest diameter larger than the width of the recess, when the pre-expanded particles are filled in the mold, the pre-expanded particles are filled into the recess. Intrusion is avoided.

Therefore, the formation of the foamed resin wall between the conventional linear body of the aggregate and the foamed resin panel is prevented, and the linear body protruding from the male mold and the pre-expanded particles are used. A gap can be formed integrally with the foamed resin panel to be formed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will describe one embodiment of the present invention with reference to FIGS. In the method for manufacturing a building material panel, as shown in FIG. 1, a foam molding apparatus is used, and the apparatus is provided with a mold 1 and the mold 1 is used.
Includes a male mold 2 and a female mold 3, and inner walls 2a and 3a of the male mold 2 and the female mold 3 form a cavity portion 4 corresponding to a desired shape of a foam resin panel. ..

The male mold 2 and the female mold 3 have hollow portions 2b and 3b, respectively.
The cavity 4 is heated by passing steam through b.

Further, a filling hole 5 for penetrating the female mold 3 and opening on the inner wall 3a thereof for sending out pre-expanded particles as a raw material is provided, and the pre-expanded particles are supplied to the filling hole 5. A feeder 6 is connected, and a feeder hose, a shutter valve, and a hopper for accumulating pre-expanded particles, which are not shown, are sequentially connected to the feeder 6.

In addition, the male inner wall 2a is provided with a concave portion 7 for an aggregate having a cross-sectional lattice shape with a width that allows a wire as a linear body in an aggregate to be described later to be inserted and removed freely. Is formed so that only about half of the inner wall 2a is inserted into the inner wall 2a by the aggregate recess 7 so that the male inner wall 2a is divided into a substantially rectangular parallelepiped shape at predetermined intervals, as shown in FIG. Core vents 2c, which are steam holes for male molds for blowing out steam, are provided at approximately the center of their heads.

On the other hand, as shown in FIG. 1, the female die inner wall 3a is also provided with a large number of female die steam holes (not shown) communicating from the female die hollow portion 3b to the cavity portion 4, A cooling water valve (not shown) for flowing cooling water into the hollow portions 2b and 3b in order to cool the steam port (not shown) for supplying saturated steam having a predetermined pressure to the hollow portions 2b and 3b and the cavity portion 4. Each) is installed.

As shown in FIG. 3 and FIG. 4, the above-mentioned aggregate has two lattice-shaped aggregates 9 each having a wire (linear body) 8 assembled in a lattice shape, which are opposed to each other in parallel at a predetermined interval. The wire 8 similar to the above is fixed between them so as to have a predetermined strength, and the outer shape of the aggregate 10 is a substantially rectangular parallelepiped shape having a space between each wire 8.

A method of manufacturing a building material panel having the aggregate 10 using the foam molding apparatus as described above will be described. First, as shown in FIG. 1, the aggregate 10 is fitted into the aggregate recess 7. After that, the male mold 2 and the female mold 3 are combined.

At this time, one of the lattice plane aggregates 9 of the aggregate 10 is in contact with the bottom of the aggregate recess 7, and the other lattice plane aggregate 9 is inside the cavity portion 4 via the wire 8. In this state, the lattice plane aggregate 9 projects from the male mold 2.

Thereafter, pre-expanded particles 11 made of expanded polystyrene are filled in the cavity 4 through the filling hole 5. At this time, the pre-expanded particles 11 are substantially spherical, and the minimum diameter thereof is selected to be larger than the width of the aggregate recess 7.

The pre-expanded particles 11 are not limited to the spherical shape and may have an irregular shape.
It suffices that 1 has a shape that prevents entry into the recess 7 for aggregate. For example, even if the shape of the pre-expanded particles 11 is a rugby ball shape, the minimum diameter may be set larger than the width of the aggregate recess 7.

Then, saturated vapor of a predetermined pressure is caused to flow through the hollow portions 2b and 3b, and the pre-expanded particles 1 in the cavity portion 4 are made.
Each pre-expanded particle 1 by heating and foaming 1
1 ... are fused to each other to obtain the building material panel 12. Then, cooling water is flown through the hollow portions 2b and 3b for a predetermined time,
Further, after cooling, the building material panel 12 as shown in FIG. 5 is obtained by integral molding.

As described above, the method of the above-described embodiment was obtained because the size of the pre-expanded particles 11 filled in the cavity portion 4 is set so as not to enter the inside of the aggregate recess 7. The building material panel 12 is a substantially plate-shaped foam resin panel 13 in which one of the aggregates 10 is embedded substantially in parallel, and the wire 8 which is the aggregate 10 protruding from the female mold 2.
A gap 14 is provided between and the foamed resin panel 13.

Thus, such a building material panel 12
When using as a wall material, as shown in FIG. 6, the building material panel 12 is used in one of the concrete formworks, with the exposed aggregate 10 inside, and the other weirboard 15 is used in the other formwork. Are made to face each other at a predetermined interval, and concrete 16 is placed between them.

At this time, since the gap 14 is provided between the wire 8 which is the exposed aggregate 10 and the foamed resin panel 13, the concrete 16 is solidified in a state of entering the gap 14. Therefore, the concrete 16 and the foamed resin panel 13 are firmly bonded to each other through the aggregate 10, and a stronger bonding force than in the past can be obtained. The same effect can be obtained when a wall material such as mortar is used instead of the concrete 16.

In this way, the building material panel 12 can be used as a wall material for a concrete formwork, and at least one of the concrete formwork after placing concrete is compared with the case where a dam plate facing the concrete formwork is used. It is possible to omit the removal of the weir plate, and it is possible to save labor and shorten the construction time.

As described above, the above-mentioned method has excellent properties of light weight, heat insulation and labor saving, and is a panel for building materials which is suitably used as a wall material for a house, a wall material for buildings or a wall material for a heat storage tank. 12 can be obtained stably and easily.

In the above method, expanded polystyrene was used as the material for the pre-expanded particles 11, but there is no particular limitation as long as it is another expandable resin. For example, modified polyolefin or styrene modified. Polyethylene foam resin or the like may be used.

Further, as shown in FIG. 7, a foamed resin edge 13a having a flat surface for covering the aggregate 10 may be provided along the edge of the foamed resin panel 13. When this is also used as a weir plate for creating a concrete wall, a frame plate for pouring concrete can be omitted.

[0030]

As described above, according to the method for manufacturing a building material panel of the present invention, one of the aggregates obtained by three-dimensionally assembling the linear bodies is formed into a male mold in foam molding to obtain the above-mentioned linear bodies. After being fitted in a recess having a fitting width, the cavity formed between the male mold and the female mold is filled with pre-expanded particles made of expandable resin, and then the pre-expanded particles are heated and foamed. In the method for manufacturing a building material panel, the pre-expanded particles having a minimum diameter larger than the width of the recess are used.

Therefore, since the pre-expanded particles have a diameter larger than the width of the recess, the pre-expanded particles are prevented from entering the recess when the pre-expanded particles are filled in the mold. ..

Therefore, the formation of the foamed resin wall between the linear body of the aggregate and the foamed resin panel as in the prior art is prevented, and the linear body protruding from the male mold and the pre-foamed particles are formed. A gap can be formed between the foamed resinous panel and the foamed resinous panel.

Therefore, the building material panel according to the above method,
For example, when used as a wall material for a concrete wall, it is possible to build a concrete wall in a state where concrete has entered the above-mentioned gap, and it is possible to make a concrete wall with excellent adhesion between a building material panel and concrete. Become.

As a result, the above method has an effect that it is possible to stably and easily manufacture a building material panel having the excellent characteristics of being lightweight and excellent in heat insulation and having high adhesion to a wall material such as concrete. ..

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a manufacturing apparatus in a method for manufacturing a building material panel of the present invention.

FIG. 2 is a perspective view of a recess for an aggregate formed in a male mold in the manufacturing apparatus.

FIG. 3 is a front view of an aggregate used in the manufacturing method.

FIG. 4 is a side view of the aggregate.

FIG. 5 is a perspective view of a building material panel obtained by the above method.

FIG. 6 is a cross-sectional view of a main part of a concrete wall under construction showing an example of the concrete wall using the building material panel.

FIG. 7 is a perspective view of a modification of the building material panel.

FIG. 8 is a perspective view of a conventional building material panel.

[Explanation of symbols]

 2 Male type 3 Female type 4 Cavity part 7 Recess for aggregate 8 Wire (linear body) 10 Aggregate 11 Pre-expanded particles

Claims (1)

[Claims] Claim: What is claimed is: 1. One of aggregates obtained by assembling linear bodies in three dimensions is fitted into a concave portion formed in a male mold in foam molding and having a width to which the linear bodies fit, and then the male mold and the female mold. In a method for manufacturing a building material panel, comprising filling pre-expanded particles made of expandable resin in a cavity formed between a mold and the foamed pre-expanded particles, and having a minimum diameter larger than the width of the recess. A method for manufacturing a building material panel, comprising using the above pre-expanded particles.