JPH0712610B2 - Method for manufacturing composite fireproof panel - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for manufacturing a composite fireproof panel in which a fireproof material is adhered to the back side of a coated panel.

(Prior Art) As a composite fireproof panel used for an outer wall of a building, generally, a fireproof panel and a cover panel are separately produced and then stacked and adhered using an adhesive. However, with this structure, the width of the existing refractory panel is limited, and further, the adhering step and the pre-steps such as processing and cleaning of the refractory panel surface before adhering are troublesome. Therefore, recently, a composite refractory panel has been proposed in which a refractory material in the form of sludge is poured into the back side of a shallow box-shaped cover panel and solidified to form a refractory backing material.

(Problems to be solved by the invention) However, as shown in FIG. 7, the pouring type sludge-like refractory material 14 is placed on the cover panel 3 placed in the mold 6 as shown in FIG.
Since it is simply poured and solidified, the covering panel 3
Except for the case where the main plate part 1 is made of a material that is thin enough to be flattened by the weight of the refractory material 14 or a coated panel with a good flatness formed by a mold, the plate thickness to some extent as generally used In the case of a thick coated panel or a coated panel having a strain on the main plate portion, irregularities such as corrugations and bulges are conspicuous on the surface of the main plate portion 1 of the finished composite fireproof panel,
It was not aesthetically pleasing.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a method for manufacturing a composite refractory panel having a flat main plate surface of a coated panel.

(Means for Solving the Problems) In order to achieve the above object, in the present invention, a box-shaped cover panel in which bent pieces are continuously provided on four circumferences of a main plate portion,
Placed on a flat plate-shaped bottom mold with the main plate surface below.
This cover panel is filled with a sludge-like refractory material mainly composed of an inorganic material, and the main plate portion is pressed toward the upper surface of the bottom die to flatten the main plate portion along the upper surface, The refractory material is solidified while suppressing the spring back of the main plate portion by pressing, and the pressing is released after the refractory material is solidified.

As the coated panel in the present invention, a copper plate, a stainless plate, a colored iron plate, an aluminum plate, an enameled aluminum plate, an enameled iron plate, an enameled aluminum plated steel plate, a synthetic resin coated steel plate, a synthetic resin plate or the like can be used.

Further, as the sludge-like refractory material mainly composed of an inorganic material in the present invention, mortar, a mixture of mortar and aluminum powder as a foaming material, a mixture of mortar and wood wool, a mixture of mortar and asbestos, various types of plaster, etc. A slurry obtained by adding water to the raw material for the fireproof panel is used. It is more preferable to add inorganic fibers such as glass fibers, metal fibers and carbon fibers to the above-mentioned raw material for refractory panel because the strength is improved.
Further, it is more preferable to add inorganic particles having air bubbles such as porous vermiculite, perlite, and hollow shirasu balloons to the above-mentioned raw material for refractory panel because the heat insulating property is improved and the weight is reduced.

In the present invention, the pressing of the main plate against the bottom die may be started before the sludge-like refractory material is filled into the coating panel, or may be started after the filling. The release of the pressure may be performed after the solidification of the refractory material progresses and the spring back of the main plate portion is suppressed by the rigidity and the weight of the refractory material.

(Operation) In the method for manufacturing the composite fireproof panel of the present invention, since the sludge-like refractory material is solidified while pressing the main plate portion toward the upper surface of the flat plate-shaped bottom die, the main plate portion is of the bottom die type due to the pressing. It deforms along the upper surface, and this deformed state is maintained by pressing during solidification of the refractory material and by the solidified refractory material after solidification of the refractory material, so that the flatness of the main plate portion is improved.

(Embodiment) A first embodiment of the present invention will be described below with reference to FIG.

First, as shown in FIG. 1 (a), a shallow box-shaped cover panel 3 in which bent pieces 2 are continuously provided on the four circumferences of a main plate 1 is formed into a flat bottom mold 4 and a side frame 5. Set in frame 6. 4a is a pedestal. On the cover panel 3, a spacer 7 and a nut 8 for mounting a frame are welded, a reinforcing core metal 9 is placed, and further a plurality of tapered rod-like bodies 11 are vertically attached and fixed to a holding plate 10. The pressing tool 12 in the shape of a bar is placed on the main plate 1 with the rod-shaped body 11 facing downward. Then, the hose 13 is used to fill the mold 6 with the sludge-like refractory material 14. If grease is applied to the rod-shaped body 11 in advance, the refractory material can be easily removed after solidification. After the refractory material 14 has been filled, as shown in Fig. 2 (b), the holding plate
10 and the girder materials 15 and 16 longer than the bottom die 4, the presser plate
It is laid across the upper side of 10 and the lower side of the bottom die 4, and both ends of each girder member 15 and 16 are tightened by a fastener 19 composed of a bolt 17 and a nut 18, and a main plate is attached by a rod-shaped body 11 of a presser foot 12. The part 1 is pressed toward the upper surface of the bottom mold 4. As a result, the main plate portion 1 has its irregularities corrected and is maintained in a flat shape along the upper surface of the bottom mold 4, so that the refractory material 14 is solidified by leaving or curing as it is. After the solidification, the girder materials 15 and 16 and the retainer 12 are removed to obtain a composite fireproof panel 20 having a flat main plate 1 shown in FIG. 1 (c). The hole 21 from which the rod-shaped body 11 of the retainer 12 is removed may be left as it is, or may be filled with a refractory material such as mortar and closed.

In the embodiment described above, the presser foot 12 is filled with the refractory material 14 after being set in the mold frame 6. First, the refractory material 14 is filled in the mold frame 6 and then the rod-shaped body 11 is inserted into the refractory material 14. The presser foot 12 may be set.

Next, FIG. 2 shows a second embodiment of the present invention, in which the same or corresponding parts as in FIG. 1 are designated by the same reference numerals.
In the present embodiment, the cover panel 3 is made of a magnetic material such as a steel plate, and the mold 6 is made of a non-magnetic material such as wood, plastic or aluminum. The main plate portion 1 is attracted by the electromagnet 23 and the main plate portion 1 is pressed against the upper surface of the bottom die 4. In addition, the cored bar 9 is a wire on the bar 24 laid on the side frame 5.
Suspended by 25.

According to this embodiment, since the upper side of the side frame 5 is in an open state and there are no obstacles, the refractory material 14 is poured or filled.
You can easily perform work such as smoothing the upper surface of the. A permanent magnet may be used instead of the electromagnet 23. If the side frame 5 is also made of a magnetic material, and a magnet such as an electromagnet is provided below the bottom mold 4 immediately below the side frame 5, and the side frame is fixed by the magnet, the fixing work by the closing tool 26 becomes unnecessary. You can save time.

FIG. 3 shows a third embodiment of the present invention, which is a box-shaped exhaust cover having a plurality of exhaust holes 31 formed in the bottom mold 4 and opening upward.
Exhaust port provided on the exhaust cover 32 by placing the bottom mold 4 on the 32
A vacuum pump (not shown) is connected to 33 via a hose 34, and the inside of the exhaust cover 32 is evacuated by this vacuum pump to suck the main plate 1 into the bottom mold 4 to flatten the main plate 1. is there. A gasket 35 for sealing is provided between the four circumferences of the main plate 1 and the bottom die 4, and between the bottom die 4 and the exhaust cover 32.
Put on and 36. The degree of vacuum achieved in the exhaust cover 32 is 10
Since about ^-2 Torr is sufficient, it is preferable to use an ordinary rotary pump, water ring pump, mechanical booster pump, etc. as the vacuum pump. Further, it is preferable to provide a vacuum gauge such as a Bourdon tube or a Fogel tube in the exhaust system because the presence or absence of air leakage and the ultimate vacuum degree (suction effect) in each of the above-mentioned gasket parts can be known.

This embodiment is similar to the third embodiment in that the upper side of the side frame 5 is open and there is no obstacle, and the cover panel 3 may be made of a non-magnetic material such as aluminum, brass or plastic. Further, since the bottom die 4 may be a magnetic material, it is possible to use a steel material.

FIG. 4 shows a fourth embodiment of the present invention. After the refractory material 14 is filled in the form 6, it is fitted with the side frame 5 with a small clearance to cover the upper surface of the refractory material layer 41. Is fitted in the side frame 5 and tightened with the girder materials 15 and 16 and the fasteners 19 similar to those of the first embodiment, and the main plate portion 1 is fixed to the bottom mold 4 through the sludge-like refractory material 14.
Is pressed against the upper surface of. At this time, if the plastic cover 42 such as a polyethylene sheet is placed on the upper surface of the refractory material 14 and then the drop lid 41 is fitted, the refractory material after solidification of the refractory material and the drop lid 41 can be easily separated. Further, as shown in the figure, when the bottom die 4 is provided with a hole 43 for venting air, the main plate portion 1
The air between the bottom mold 4 and the bottom mold 4 escapes, and the flatness of the main plate 1 further improves.

In this embodiment, the pressing mechanism is simple and the equipment cost is low.

The present invention is not limited to the above-mentioned respective embodiments, and for example, pressing of the pressing member 12 of the first embodiment and pressing of the drop lid 41 of the fourth embodiment can be performed by using a weight or a press,
It may be done by tightening a steel band. The sludge-like refractory material 14 may be filled on the back surface side of the cover panel 3 by stamping instead of pouring. Further, as the covering panel in the present invention, as shown in FIG. 5, it is also possible to use a panel in which an inner folding piece 51 is further connected to the bending piece portion 2 in a frame shape. Further, in each of the above examples, the refractory material
The side frame 5 is required because 14 is filled to the height of the bending piece 2 or more, but as shown in FIG. 6, the refractory material is within the range of the height of the bending piece 2 or less. When only 14 is filled, the side frame 5 is unnecessary and the device is simplified. The present invention can also be applied to a composite refractory panel having no core metal or rebar in the refractory material layer as shown in FIG.

(Effect of the Invention) As described above, according to the present invention, a composite fireproof panel having a flat main plate portion surface of a coated panel can be obtained by a simple manufacturing process, and the obtained composite fireproof panel has an excellent appearance. It is extremely suitable for use as an outer wall of a building.

[Brief description of drawings]

1 (a) to 1 (c) are explanatory views of a manufacturing process of a composite refractory panel showing a first embodiment of the present invention, and FIGS. 2 to 4 show second to fourth embodiments of the present invention, respectively. FIG. 5 is a perspective view showing another embodiment of the cover panel according to the present invention, FIG. 6 is a longitudinal sectional view showing another embodiment of the composite fire resistant panel, and FIG. FIG. 4 is an explanatory view of a manufacturing process of a conventional composite fireproof panel. 1 ... Main plate part, 2 ... Bending piece part, 3 ... Cover panel, 4
...... Bottom type, 10 ...... Presser plate, 11 ...... Bar, 12 ...... Presser tool, 14 ...... Refractory material, 15 …… Girder material, 16 …… Girder material, 19 …… Fastener, 20 …… Composite fireproof panel, 23 …… electromagnet, 31 …… exhaust hole, 32 …… exhaust cover, 33 …… exhaust port, 41 …… falling lid.

Claims (5)

[Claims] 1. A box-shaped cover panel, in which bent pieces are continuously provided on four sides of a main plate, is placed on a flat plate-shaped bottom mold with the surface of the main plate facing downward, and is placed in the cover panel. It is filled with a sludge-like refractory material mainly composed of an inorganic material, and the main plate portion is pressed toward the upper surface of the bottom die to flatten the main plate portion along the upper surface, and the main plate portion is pressed by the pressing. A method for manufacturing a composite fireproof panel, characterized in that the refractory material is solidified while suppressing the spring backing, and the pressing is released after the refractory material is solidified. 2. A pressing member, in which a large number of rod-shaped members penetrating a refractory material layer are vertically fixed to a pressing plate, is pressed downward,
The method for manufacturing a composite fireproof panel according to claim 1, wherein the main plate portion is pressed. 3. The method for manufacturing a composite fireproof panel according to claim 1, wherein the cover panel is made of a magnetic material, and the main plate portion is pressed by a magnet provided on the bottom die to press the main plate portion. 4. The main plate portion is pressed by evacuating the lower surface side of the bottom die with a vacuum pump and decompressing the lower surface side of the main plate portion through an exhaust hole formed in the bottom die. A method for manufacturing the composite fireproof panel according to item 1. 5. The method for manufacturing a composite fireproof panel according to claim 1, wherein the main plate portion is pressed by pressing downward the drop cover that covers the upper surface of the refractory material layer.