JPH0421928Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to architectural enamel panels used for forming walls and ceilings of buildings.

(Prior art) Generally, enameled panels for construction use a fireproof board such as asbestos cement calcium silicate board, gypsum board, ALC board, etc. on the back side of the enameled panel made of metal plate.
Glued materials are widely used as reinforcing materials. When bonding, the enamel panel and the fireproof board are placed one on top of the other, and pressure is applied using a press to solidify the adhesive, thereby correcting any warpage or waviness in the enamel panel.

(Problem to be solved by the invention) However, in the above-mentioned architectural enameled panels, because the flatness of the surface of the fireproof board is poor, streak-like or indentation-like irregularities on the surface (adhesive surface) of the fireproof board are not transferred. The surface of the enamel panel was deformed into uneven shapes, and the appearance was not desirable. Furthermore, if the press pressure during adhesion is lowered, the transfer of the above-mentioned irregularities will be reduced, but the warping and undulating waves of the entire enamel panel will not be sufficiently corrected, and irregularities will appear on the entire wall surface of the building using this enamel panel. The unevenness was noticeable and the appearance was unsightly.

This invention solves the above-mentioned conventional problems and provides an architectural enamel panel that has a smooth appearance with minimal unevenness, warping, and waviness on the surface of the enamel panel, and has the desired fire resistance. That is.

(Means for solving the problem) However, the architectural enamel panel devised by Lever,
An enamel panel consisting of a series of bent pieces arranged around the four circumferences of the main plate part and covered with an enamel layer at least on the front side, and a cell size of 5 to 40 mm that is bonded with adhesive to the back side of the main plate part of this enamel panel. The foil thickness is
An aluminum honeycomb sheet with a thickness of 30 to 200 μm, a backing plate made of a metal plate with a thickness of 0.2 to 1.0 mm bonded to the back side of the aluminum honeycomb sheet with adhesive, and a backing plate made of a metal plate with a thickness of 0.2 to 1.0 mm bonded to the back side of the aluminum honeycomb sheet with adhesive An architectural enamel panel consisting of a fireproof board bonded to it.

In this invention, the enamel panel can be formed from various metal plates such as steel plates, copper plates, stainless steel plates, aluminum plates, etc. into a shallow box shape and provided with an enamel layer on at least the surface side.

The enamel layer in this invention can be formed by coating various general enamel slips in a conventional manner, drying and firing, and having the desired thickness, color, strength, corrosion resistance, etc. This enamel layer may be provided at least on the front side of the enamel panel, but from the viewpoint of durability it is preferably provided on both the front side and the back side of the enamel panel. In this case, it is preferable that the thickness of the enamel layer is in the relationship of back side thickness / front side thickness = 0.4 to 0.9. If this value is less than 0.4, the main plate part of the enamel panel will be on the front side when the enamel layer is fired. This is undesirable because it tends to cause side-curving protrusion deformation, and even if this is corrected by bonding an aluminum honeycomb, a wavy deformation remains. Further, if the ratio exceeds 0.9, it is not preferable because corrugated deformation tends to occur after firing.

In this invention, the cell shape of the aluminum honeycomb sheet may be not only hexagonal but also polygonal such as square and pentagon, and circular, in which case the cell size is 5.
A cell size of ~40 mm is preferable. If the cell size is less than 5 mm, it will be difficult to produce an aluminum honeycomb and the cost will increase. If the cell size exceeds 40 mm, the compressive strength and straightening effect will be insufficient, and the cell shape will be poor. This is undesirable because there is a risk that it will be transferred to the main plate. In addition, the aluminum honeycomb foil thickness (cell wall thickness) used is 30 to 200 μm, but if the foil thickness is less than 30 μm, the compressive strength is insufficient.
Also, foils with a thickness exceeding 200 μm are undesirable because they increase the cost of producing aluminum honeycombs.

As the metal plate forming the backing plate in this invention, surface-treated steel plate, aluminum plate, stainless steel plate, copper plate, etc. with a plate thickness of 0.2 to 1.0 mm can be used, and those with a plate thickness of less than 0.2 mm are aluminum. This is undesirable because the panel strength and straightening effect after adhering to the honeycomb are insufficient, and a plate thickness exceeding 1.0 mm is undesirable because the panel weight and material cost increase.

Furthermore, as the adhesive in this invention, in addition to organic materials such as epoxy resin and urethane resin, inorganic materials such as water glass and phosphate glass can also be used.

As the fireproof board in this invention, various fireproof boards mainly made of inorganic materials such as gypsum board, calcium silicate board, ALC board, foamed ceramic board, GRC board, MRC board, wood wool cement board, and asbestos board can be used. I can do it. In addition to the various adhesives mentioned above, rubber-based adhesives can also be used to bond the fireproof board and the backing board. At this time, the fireproof board may be stacked on top of the enamel panel, aluminum honeycomb sheet, and backing plate that have been layered and bonded under pressure in advance, and then bonded to the backing plate.
The enamel panel, the aluminum honeycomb sheet, the backing plate, and the fireproof board may be laminated and pressed with an adhesive interposed therebetween, and the respective parts may be bonded together under pressure at the same time.

(Function) In the architectural enamel panel of this invention,
When the main plate, aluminum honeycomb sheet, and backing plate are overlapped and bonded under pressure, a large number of cells of the aluminum honeycomb sheet with good flatness are pressed against the main plate and the pressure is dispersed. The parts are pressurized almost uniformly to correct warps and undulations, and local unevenness is not transferred to the main plate part. After the adhesive hardens, the lightweight aluminum honeycomb sheet and backing plate are integrated with the main plate to form a strong reinforcing member on the back side of the main plate, maintaining the flatness of the bonded main plate. At the same time, it improves the strength and rigidity of the entire enamel panel.

In addition, even when an enamel panel, an aluminum honeycomb sheet, a backing plate, and a fireproof board are overlapped and bonded together under pressure, the backing plate and aluminum honeycomb sheet prevent the unevenness of the surface of the fireproof board from being transferred to the enamel panel. It acts as a cushioning material, and the main plate of the enamel panel is pressurized almost evenly by the many cells of the honeycomb sheet with good flatness, and is bonded while being pressed flat along the surface of the surface plate. Therefore, unevenness, warping, waviness, etc. on the surface of the enamel panel are suppressed to a small amount.

Since the backing plate is a smooth metal plate, it firmly adheres to the aluminum honeycomb, and also provides a wide contact area facing the fireproof board over the entire surface.
The fireproof board is firmly attached to the back side of the backing board using adhesive. This fireproof board provides the enamel panel with fireproof performance corresponding to its thickness, and also acts as a strength member that increases the rigidity of the enamel panel.

(Example) An example of this invention will be described below with reference to the drawings.

1 in the figure is an enameled panel, made of a decarburized steel plate for enameling with a thickness of 1.6 mm, a width of 1000 mm, a length of 3000 mm, and a depth of 51 mm.
A clip 4 for attaching to a building frame is attached to a bent piece 3 which is formed into a shallow box shape of mm and is connected to the four circumferences of the main plate 2, and a back end 3a of the bent piece. The clip 4 is fixed so that the distance from the rear end surface 4a is 3 mm. A 0.25 mm thick enamel layer is baked on the front side of the enamel panel 1, and a 0.20 mm thick enamel layer is formed on the back side. 5 is cell size 25.4
It is an aluminum honeycomb sheet with a foil thickness of 100 μm and a thickness H of 15 mm. Reference numeral 6 denotes a backing plate made of a galvanized steel plate with a thickness of 4.0 mm. The front side of the plate 6 (the main plate part 2 side) is bonded to each other using an epoxy resin adhesive. Further, 7 is a fireproof board made of calcium silicate board with a thickness of 35 mm, and has external dimensions of 990 mm in width and 2990 mm in length. The front side of the fireproof board 7 (main plate portion 2 side) and the back side of the backing plate 6 are bonded together with an epoxy resin adhesive. These parts are bonded using plywood spacers 8 on top of the fireproof board 7.
A plurality of stacked products consisting of an enameled panel 1, an aluminum honeycomb sheet 5 coated with an adhesive, a backing plate 6, and a fireproof board 7 coated with an adhesive are stacked together, and surface pressure is applied between the surface plates of a press (not shown). 1Kg/ ^cm2
This was done by applying pressure to the adhesive and maintaining this pressure until the adhesive solidified. The obtained architectural enameled panel 9 is a fire-resistant architectural panel having a 35 mm thick fire-resistant board 7 on the back side and has a fire resistance of 60 minutes, and has no local unevenness on the surface of the main plate portion 2. It had a smooth appearance with a good flatness of 1/1000.

This invention is not limited to the above-mentioned embodiments; for example, the materials, shapes, dimensions, etc. of each part may be other than those described above. Further, in the above embodiment, the back side 7a of the fireproof board 7 is connected to the back side end surface 4 of the clip 4.
Although the back surface 7a is drawn into the panel from the side a, the back surface 7a may be flush with the back end surface 4a or may be located at a position protruding from the back end surface 4a.
Further, in the above embodiment, it is preferable that the gap between the bent piece 3 and the fireproof board 7 be additionally covered by spraying rock wool or the like when the panel is attached to a building frame at the construction site. This invention can also be applied to enamel panels in which no clips are attached to the folded pieces.

(Effects of the invention) As explained above, according to this invention, the local unevenness, warping, and waviness of the enamel panel are suppressed to a small amount, and the enamel panel has a smooth and excellent appearance, and has the desired fire resistance. An enamel panel is obtained.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an architectural enamel panel showing an embodiment of this invention, and FIG. 2 is a partially enlarged longitudinal sectional view of the same. 1... Enamel panel, 2... Main board, 3...
Bent piece portion, 3a...Back side end, 4...Clip, 4a...Back side end surface of clip, 5...Aluminum honeycomb sheet, 6...Backing plate, 7...Fireproof board, 9... Architectural enameled panels.

Claims (1)

[Scope of utility model registration request] An enamel panel consisting of a series of bent pieces arranged around the four circumferences of the main plate part and covered with an enamel layer at least on the front side, and a cell size of 5 to 40 mm that is bonded with adhesive to the back side of the main plate part of this enamel panel. An aluminum honeycomb sheet with a foil thickness of 30 to 200 μm, a backing plate consisting of a metal plate with a thickness of 0.2 to 1.0 mm adhered to the back side of this aluminum honeycomb sheet with an adhesive, and the back side of this backing plate. An architectural enamel panel consisting of a fireproof board bonded with an adhesive.