JPS59229303A - Manufacture of composite refractory panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a composite fire-resistant panel comprising a fire-resistant panel made of a fire-resistant material and a covering panel covering the fire-resistant panel.

Fire-resistant panels such as lightweight aerated concrete boards, asbestos-calcium silicate boards, and asbestos-cement boards are suitable for use on the exterior walls of buildings because of their excellent durability, fire resistance, and heat insulation properties. However, when using a fireproof panel alone, the material is brittle and easily damaged, and it also has disadvantages such as high water absorption and poor color.To improve these points, the front side of the fireproof panel is made of enamel panels, colored iron plates, and synthetic resin plates. Composite fire-resistant panels have come into use that are covered and bonded together with covering panels such as.

By the way, the conventional manufacturing method of this composite fire-resistant panel is to produce the fire-resistant panel and the covering panel separately, and then press-bond them together.The following problems are listed below. First, an economical manufacturing method suitable for mass production of fireproof panels such as lightweight aerated concrete plates is to place mortar and a foaming agent in a rectangular tank 41 made of an iron frame, as shown in Figure 1(a). 3) After pouring and filling the mixed slurry 42 and solidifying it, the iron frame was removed and cut into slices vertically and horizontally with piano wire as shown by the chain lines in Figure (b), and the width was cut in the depth direction of the slurry. Since a large number of rectangular plate-shaped fireproof panels 43 were manufactured, the following problems occurred.

(2) The pressure of the slurry differs between the upper and lower parts of the tank 41, causing a difference in the amount and size of air bubbles, resulting in a difference in strength and heat insulation, so it was not possible to obtain a board with a width wider than 600 yen. For this reason, composite fire-resistant panels could only be made with a panel width of about 600 mm, and the exterior walls of buildings were unsightly with rough joints, and it took time and effort to construct the joints and install the panels.

■ The upper layer of the solidified slurry 42 solidified in the tank 41 has large bubbles and low strength, so it must be cut and discarded.
Yield was poor.

■ Cutting the solidified slurry with piano wire is time-consuming, and the piano wire that has been carefully stretched will bend during cutting, so the accuracy of the squareness of the corners (4) of the resulting fireproof panel 43 is low. However, as shown in FIG.
It was necessary to make the vertical joints vertical by cutting the bottom edge of the pipe, which required complicated work.

Next, the conventional method of covering and fixing a covering panel 44 such as an aluminum plate to the fireproof panel 43 is as shown in the second figure.
Cut grooves 45 on the longitudinal sides of the fireproof panel 43 for connection during wall construction (Figure 1)), blow off the dust on the surface of the fireproof panel 43 with air, etc. (Figure C), and dry the surface of the fireproof panel 43. At the same time as applying the adhesive, the adhesive is also applied to the inner surface of the flat plate-shaped covering panel 44 (d) in the same figure, and the covering panel 44 is placed on the fireproof panel 43 (e), and a plurality of the coated panels are stacked. The composite fireproof panel 46 was produced by pressure-bonding and fixing (FIG. 1f). Therefore, there was a problem in that the manufacturing process was extremely complicated and time-consuming.

This invention solves the above-mentioned conventional problems at once; the manufacturing process is simple, a wide composite fireproof panel can be obtained, the yield during the manufacture of the fireproof panel is high, and the surface angle of the corner of the fireproof panel can be reduced. It is an object of the present invention to provide an excellent and useful method for manufacturing composite fire-resistant panels.

However, the gist of the present invention is to provide a composite fireproof panel characterized in that a slurry mainly composed of an inorganic material is poured into a covering panel in which side wall parts are connected to the four circumferences of a main plate part, and the slurry is solidified. It is in the manufacturing method.

In the present invention, as the coated panel, a copper plate, a stainless steel 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, etc. can be used.

In the present invention, the slurry mainly composed of inorganic materials includes mortar, mortar with aluminum powder added as a foaming agent, a mixture of mortar and wood wool, a mixture of mortar and asbestos, and various raw materials for fireproof panels such as plaster. A slurry made by adding water is used. It is more preferable to add inorganic fibers such as glass fibers, metal fibers, and carbon fibers to the above raw materials for fireproof panels, and to add inorganic granules with air bubbles such as shirasu balloons to improve heat insulation and reduce weight. . Further, the slurry in the present invention may be solidified by being left at room temperature and pressure, but may be solidified under heating and/or pressure to increase the strength or solidification rate.

Next, thirdly, the first implementation of this invention will be explained with reference to the drawings.

- First, a steel plate is bent and formed into a box shape, and then both sides are enameled to produce a covering panel 1 consisting of an enamel panel with a thickness of about 2 mm. The covering panel 1 is made up of a rectangular main plate 2, with side walls 3 continuous to the four circumferences thereof, and a bent piece 4 continuous to the edge of the side wall 3 as a locking member. The bent piece portion 4 has a rest portion 4 a facing the main plate portion 2 . In addition, a locking tool (7) 5 is fixed to the main plate part 2 as another locking member by welding before the enameling process, and this locking tool 5 holds a disk-shaped locking piece 6 and a base plate 7 as an axis. 8, and the lower surface of the locking piece 6 is a locking surface 6a facing the main plate portion 2.
is formed.

The covering panel 1 having the above structure is placed on a horizontally supported plate 9 as shown in FIG.
Inject 0. The slurry 10 used in this example was: Portland cement: 2 parts, sand: 8 parts, shirasu balloon:
1 part, Shirasu fiber: 1 part, vermicular, light: 0
．． 5 parts of water and 3 parts of water (all parts by weight) were mixed to form a slurry. After pouring the slurry 10, as shown in Figure 3 (
As shown in C), cover the upper surface of the covering panel l with a perforated plate 11 and tighten it with the plate 9, and remove the excess of the slurry 10 from the foaming process through the holes 1.
2 and allowed to stand at room temperature and pressure for about 12 hours to solidify. After that, the perforated plate 11 was removed and the portion of the slurry 10 protruding from the holes 12 was removed to obtain a composite fireproof panel 13. The obtained product has a locking surface 4a of the bent piece portion 4 and a locking surface 6 of the locking tool 5.
When a is fixed to the fireproof panel ■4 where the slurry 10 has solidified, the covering panel 1 (8) and the fireproof panel are firmly fixed together, and since the depth of the slurry 10 is still shallow, shirasu balloons, shirasu fibers, vermiculite, etc. It was a preferable composite fireproof panel in which almost uniform dispersion of the additives was obtained, and the flatness of the back surface 15 was also excellent.

In the above embodiment, the covering panel 1 and the fireproof panel 14
Since the folding piece 4 and the locking tool 5 are used together as a resting member to connect the parts, it is possible to obtain excellent adhesion even in a wide composite fireproof panel, but the width and thickness of the composite fireproof panel Depending on the situation, one of the bent piece part 4 and the locking member 5 may be omitted, and instead of these locking members (or in combination), the inner surface of the main plate part 2 of the covering panel 1 may be coated with seven rubene or the like. A hard granular inorganic material such as coarse silica sand may be baked and fixed using a glaze or the like, and this may be used as a binding material for the covering panel 1 and the fireproof panel 14. In addition, other shapes may be used as the locking tool 5. For example, as shown in FIG. As shown in Fig. 5, a channel steel fastener 17 that is shorter than the covering panel 1 is fixed to the main plate 2, and as shown in Fig. 6, both ends of the steel strip are covered by screws or welding. A locking tool 18 connected to the side wall portion 3 of the panel 1, a seventh
As shown in the figure, a stopper 19 or the like can be used in which a slurry flow hole 19a is bored in one side of a steel plate bent into an angle iron shape, and both ends are connected to the side wall 3 by screws, welding, or the like. The locking surface facing the main plate portion 2 of these stoppers is as follows:
It does not necessarily have to be parallel to the inner surface of the main plate portion 2.

Further, although FIGS. 4 to 8 show the covering panel 1 without the folding piece 4 (see FIG. 3), the folding piece 4 may of course be provided.

Next, a second embodiment of the invention shown in FIG. 8 will be described.

In this embodiment, a covering panel 21 made of an enamel panel having a main plate part 2, a side wall part 3, and a bent piece part 4 is used, similar to the covering panel 1 shown in FIG. 7 Reuben 22 is baked and fixed. This covering panel 21 is placed on a horizontally supported bottom plate 23, and the side walls of the covering panel 21 are formed by side frames 25.25 having semi-cylindrical protrusions 24 and flat end frames 26.26. 3, and the side frame 25, end frame 26, and bottom plate 23 are mutually fastened to assemble the formwork 27. The side frame 25 and the end frame 26 protrude upward from the side wall 3 of the covering panel 21, and a formwork space 28 surrounded on all four peripheries by the projecting portion is continuous with the inside of the covering panel 21 and serves as a packing. Also covered panel 2
On the main plate 2 of 1, there is a reinforcing material 30 made of framed reinforcing bars.
and a connector 31 used when attaching the composite fireproof panel to the building frame. The connector 31 is a rod-shaped body having a support plate 32 at its base end and a female thread 33 bored at its tip, and is placed on the main plate 2 with the axis of the female thread 33 substantially perpendicular to the main plate 2. be.

A slurry 10 similar to that of the first embodiment is poured into the covering panel 21 and the formwork 27 having the structure described above, and the perforated plate 84 is attached and fastened to the formwork 27 and solidified. It is preferable to apply a rubber gasket (11) to the upper end of the connector 31 to prevent slime from entering the female thread 33.

As shown in FIG. 8(Q), the obtained product is a composite fireproof panel 37 having a groove 36 on the side of the fireproof panel 35 and a reinforcing material 30 and a connector 31 embedded inside.
There is no need for any post-processing such as the formation of the connecting member 31 or the troublesome cutting required to attach the connector 31.

This invention is not limited to the above embodiments, but
The slurry 10 may be solidified in the open state.

Further, it is possible to provide a convex portion or a concave portion having a shape other than the semi-cylindrical protrusion portion 24 on the inner surface of the side frame 25 and the end frame 26 to form a concave portion or six portions of a desired shape in the fireproof panel 35 portion. can. Furthermore, a wire mesh may be used as the reinforcing material 30, and these reinforcing materials may be used in the first embodiment. Furthermore, other shapes may be used as the connector 31, and this connector 31 can also be used in the first embodiment (12). Also in the second embodiment, covering panels having various structures as shown in FIGS. 4 to 9 can be used.

As explained above, according to the present invention, it is only necessary to pour the slurry into the box-shaped covering panel and solidify it, which eliminates the troublesome work of cutting conventional fire-resistant panels, finishing the cut surfaces, and gluing the covering panels and fire-resistant panels. and pressure welding work for assimilation,
This eliminates the need for cutting work to form grooves on the side surfaces of fire-resistant panels, allowing composite fire-resistant panels to be manufactured through a simple process. In addition, according to this invention, a wide composite fireproof panel can be obtained, and when used on the exterior wall of a building, a clean appearance with a small number of joints can be obtained.Furthermore, the face angles of the corners of the covering panel and the fireproof panel are highly accurate. As a result, the number of steps needed to adjust the verticality of the edge of the panel when attaching it to the building frame is reduced, and together with the reduction in the number of joints, the number of steps required when constructing the wall of the building is reduced.

Further, according to the present invention, it is possible to easily obtain a composite fireproof panel that incorporates a connector having a female threaded portion that is convenient for attachment to a building frame.

[Brief explanation of the drawing]

Fig. 1 is a process diagram showing a conventional method for manufacturing a lightweight aerated concrete board, Fig. 2 is a process diagram showing a conventional method for manufacturing a composite fireproof panel, and Fig. 3 is a diagram showing a first embodiment of the present invention. Explanatory diagram of manufacturing process of composite fireproof panel, Figures 4 to 7
This figure is a perspective view of a main part of a covering panel showing another embodiment of the fastener shown in FIG. 3, and FIG. 8 is an explanatory view of the manufacturing process of a composite fireproof panel showing a second embodiment of the present invention. ■... Covering panel, 2... Main plate part, 3... Side wall part, 4... Bent piece part, 4a... Locking surface, 5... Locking tool, 6a... Locking surface, 10... Sludge, 13... Composite fireproof panel, 14... Fireproof panel, 16-19...
- Locking tool, 21... FFL handle, 22... Side frame, 26... End frame, 27... Formwork, 28... Formwork space , 30... reinforcing material, 31...
・Connector, 32... Support plate, 33... Female thread, 35.
... Fireproof panel, 37... Composite fireproof panel. Applicant Nippon Insulators Co., Ltd. Fuji Kogyo Co., Ltd. Agent Yu Inui (15) Figure 1 = 13-

Claims (1)

[Claims] 1. In a covering panel in which side walls are connected around the four circumferences of the main plate,
A method for manufacturing a composite fireproof panel, comprising pouring a slurry mainly composed of an inorganic material and solidifying the slurry. 2. The method for manufacturing a composite fireproof panel according to claim 1, wherein a granular inorganic material is fixed to the inner surface of the main plate portion of the covering panel. 3. The method for manufacturing a composite fireproof panel according to claim 1, wherein a locking member having a locking portion facing the main plate portion is fixed to the covering panel. 4. The method for manufacturing a composite fireproof panel according to claim 3, wherein the first member is a fastener attached to the main plate of the covering panel. 5. The method for manufacturing a composite fireproof panel according to claim 8, wherein the locking member is a locking tool attached to a side wall portion of the covering panel. 6. The method of manufacturing a composite fireproof panel according to claim 3, wherein the locking member is a bent piece portion continuous to the side wall portion of the covering panel. 7. The method for manufacturing a composite fire-resistant panel according to paragraph 6, in which the side wall of the covering panel is surrounded by a formwork to form a formwork space continuous with the inside of the covering panel, and the slurry is removed inside the covering panel and in the formwork space. . 8 Claim 1 in which the slurry is poured while reinforcing materials such as reinforcing bars are placed on the main plate portion of the covering panel.
The method for manufacturing a composite fireproof panel according to item 1 or 2 or 3 or 4 or 5 or 6 or 7. 9 A connecting tool having a support plate on the proximal end and a female thread on the distal end is placed in the covering panel with the axis of the female thread almost perpendicular to the main plate, and then the slurry is placed. A method for manufacturing a composite fire-resistant panel according to claim 1 or 2, or claim 3 or 4 or 5 or 6 or 7 or 8, wherein the casting is carried out. 10 Claims 1 or 2, or 3 or 4, or 5 or 6, or 7 or 8, or 10. The method for manufacturing a composite seal panel according to item 9. 11.Claim 1 or 2 or 3 or 4, or 5 or 6, or 7 or 8, or 11. 9
The method for manufacturing a composite fireproof panel according to item 1 or item 10. 12 Claims 1 or 2, or 3 or 4 or 5, or 6 or 7, or 12. The method for manufacturing a composite fireproof panel according to item 8, 9, or 10.