JPS63312032A - Manufacturing method of construction panel - Google Patents

Abstract

PURPOSE:To enable the surface of construction panels to have a smooth and excellent appearance by using paper honeycomb sheets as spacers so that they are fitted into a back space of a panel surrounded by a backing plate and a bent-up sheet, and removing the paper honeycomb sheets after adhesive is cured. CONSTITUTION:An enamel layer is baked and formed on the surface side of a metal panel 1. Plural sets of lapped sheets 8 composed of the metal panel 1, an aluminum honeycomb sheet 5, and a backing plate 6 are piled up between a stationary board 9 and a movable board 10 of a press with the paper honeycomb sheets 7 being installed on each backing plate 6, and the adhesive is cured while maintaining the pressing condition. After the adhesive is cured, the paper honeycomb sheets 7 are removed so as to obtain construction panels. Since a main plate part 2 of the metal panel 1 is almost uniformly pressed by a number of cells of the honeycomb sheets and aluminum honeycomb sheets having good flatness, warp and waviness are corrected, and thus - the transfer of local irregularities of the main plate part 2 is not produced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing architectural panels used for forming walls and ceilings of buildings.

(Prior art) In general, this type of architectural panel includes a reinforcing material such as a fireproof board such as an asbestos cement calcium silicate board, a gypsum board, a flexible board, or an ALC board on the back side of a metal panel such as a crawler panel. Glued adhesives are widely used. When bonding, the scrap metal panel and the fireproof board are placed one on top of the other, and the adhesive is solidified while being pressurized using a press, thereby correcting any warping or waviness in the metal panel.

(Problems to be Solved by the Invention) However, all of the above fireproof boards tend to expand due to weight (and moisture), causing distortion in the metal panel part, and also have poor flatness on the surface of the fireproof board, resulting in streaks or There were problems such as unevenness such as impressions being transferred during pressure bonding and deforming the surface of the metal panel into an uneven shape.Also, asbestos contained in asbestos cement calcium silicate boards and flexible boards is a carcinogenic substance. In addition, the dimensional accuracy of the thickness of fireproof boards is poor at ±0.5 JlllN degrees, so multiple fireproof boards are lined up on the back of a large metal panel. In the case of pressure bonding, there was also a problem in that uneven lines at the butt portion of the fireproof board were transferred to the metal panel.

Therefore, it may be possible to use an aluminum honeycomb sheet as a core material instead of the above-mentioned fireproof board, and glue a metal panel and a backing plate to both sides of this aluminum honeycomb sheet.
Generally, the metal panel used is a shallow box-shaped one with bent pieces arranged around the four circumferences of the main plate.
As shown in the figure, the depth T of the bent piece portion 23 of the metal panel 21
When using an aluminum honeycomb sheet 25 with a thinner thickness H, the thick spacer 2 is
7 needs to be interposed on the backing plate 26. However, this spacer 27 is pressed against the main plate part 22 of the lower metal panel 21 via the backing plate 26 and the aluminum honeycomb sheet 25, and is also pressed directly against the main plate part 22 of the metal panel 21 stacked above this spacer. Therefore, unless a spacer with excellent flatness and plate thickness accuracy and no local unevenness on the surface is used, the flatness of the main plate portion 22 will be poor and the main plate portion 22 will be deformed into an uneven shape. For this reason, when a general plywood board is used as the spacer 27, it takes time and effort to improve the accuracy of processing the board thickness, and the weight increases, and when two or more plywood boards are used side by side, uneven streaks corresponding to the joints may occur. There is a risk of transfer to the main plate portion 22, and it is extremely complicated and uneconomical to prepare one-piece plywood spacers with various external dimensions and thicknesses to match metal panels 21 of various sizes. This causes problems.

This invention has been made in view of the above points, and it is possible to manufacture architectural panels having an aluminum honeycomb sheet as a core material, which has a smooth panel surface and an excellent appearance, using spacers that are lightweight, inexpensive, and easy to handle. The purpose of this paper is to provide a method for manufacturing panels for use in industrial applications.

(Means for Solving the Problems) However, the method of manufacturing a construction panel according to the present invention consists of a metal panel in which bent pieces are continuously arranged around the four circumferences of the main plate, and an aluminum honeycomb sheet coated with adhesive on both sides. and a backing plate made of a metal plate, and when multiple sets of these stacked products are stacked and bonded under pressure, a space inside the back side of the panel surrounded by the backing plate and the bent piece portion is A construction panel characterized in that a paper honeycomb sheet (1-427 (-1&L, 0゛ for T) into which a part is fitted is removed after the adhesive hardens to obtain a construction panel. This is the manufacturing method.

As the metal panel in this invention, various metal plates such as steel plate, copper plate, stainless steel plate, aluminum plate, etc., formed into a shallow box shape can be used, and in particular, an enamel panel with an enamel layer provided on at least the surface side can be used. Preferable in terms of durability.

In the present invention, it is preferable to use an aluminum honeycomb sheet with a cell size of 5 to 40 m. If the cell size is less than 5 a1, it is difficult to produce an aluminum honeycomb and the cost increases, and if the cell size exceeds 40 m. The compressive strength and straightening effect are insufficient, and
This is not preferable because there is a risk that the cell shape will be transferred to the main plate. Also, the aluminum honeycomb foil thickness (cell wall thickness) is 3
It is preferable to use foils with a thickness of 0 to 200, ia + later, and those with a foil thickness of less than 30tm have insufficient compressive strength.
Also, foils with a thickness of more than 200 mm are undesirable because they increase the cost of producing aluminum honeycombs.

The metal plate forming the backing plate in this invention includes:
Surface-treated steel plate with a thickness of about 0.2 to 1.0 tram,
An aluminum plate, a stainless steel plate, a copper plate, etc. can be used.

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

Next, the paper honeycomb sheet in this invention has a cell size of 5 to 30 cells and a paper thickness of 0.05 to 1.041 mm.
It is preferable to use a paper honeycomb with a cell size of less than 5 m, as it is difficult to produce a paper honeycomb and increases the cost, and a cell size of more than 30 m+ has insufficient compressive strength and straightening effect. This is not preferable because there is a risk that the cell shape will be transferred to the main plate. In addition, paper honeycombs with a paper thickness of less than 0.05 am have insufficient compressive strength, and paper honeycombs with a paper thickness of more than 1.0 m are undesirable because the manufacturing cost of the paper honeycomb increases. Further, various materials such as kraft paper and asbestos paper can be used as the honeycomb constituent material.

The total thickness of this paper honeycomb sheet. The dimension S in the drawings is the size of the backing plate 6 and the bent piece in the overlapping product 8 of the metal panel 1, the aluminum honeycomb sheet 5, and the backing plate 6, as shown in the second diagram showing an embodiment of the present invention. The paper honeycomb sheet 7 is fitted into the space 12 on the back side of the panel surrounded by Clip 4 fixed to metal panel 1 or bent piece 3 of metal panel 1 (clip 4
It is preferable that the thickness is such that it protrudes by 0.5 rm or more from the end surface on the back side of the case (in the case where there is no such thing). This protrusion ff1R or R
If it is less than 0.5 m (in the case where there is no clip 4), it is not preferable because there is a risk of interference between adjacent stacked products 8 when multiple sets of stacked products 8 are stacked and bonded under pressure.

It should be noted that if the distance between the protrusions exceeds 10jw+, the amount of paper honeycomb used increases and the buckling strength of the honeycomb decreases, which is not preferable.

(Function) In the method for manufacturing architectural panels of the present invention, a stacked product in which a metal panel, an aluminum honeycomb sheet coated with adhesive on both sides, and a backing plate is stacked is partially disposed within the space on the back surface of the panel. When multiple sets of paper honeycomb sheets are stacked and pressurized with the paper honeycomb sheets interposed as spacers, the main plate of the metal panel is applied almost evenly due to the large number of cells of paper honeycomb sheets and aluminum honeycomb sheets with good flatness. The pressure corrects warps and undulations, and prevents local unevenness from being transferred to the main plate.

In addition, paper honeycomb sheets are lightweight and easy to handle, and are also thin, highly accurate, easy to cut, and inexpensive, so spacers can be easily made to fit metal panels of various external dimensions. Even if two or more paper honeycomb sheets are lined up and used as a spacer for one metal panel, the thickness accuracy is good, so the unevenness corresponding to the seam will not be transferred to the metal panel. , economical and high-precision spacers can be used to manufacture architectural panels. After the adhesive hardens, the paper honeycomb sheet is removed, and 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, creating a smooth and excellent appearance. A construction panel having the following properties is obtained.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

1 in the figure is a metal panel, made of a decarburized steel plate for enameling with a thickness of 1.6 mm, medium 1300 am +, length 3000 am, depth T =
A clip 4 for attaching to the building frame is attached to the bent piece 3 which is formed into a shallow box shape with a diameter of 27 mm and is connected to the four circumferences of the main plate 2.
is fixed. An enameled layer with a thickness of 0.25 mm is baked on the front side of the metal panel 1, and an enamel layer with a thickness of 0.20 mm on the back side. 5 is an aluminum honeycomb sheet with a cell size of 19 mm and a foil thickness of 70 mm, and its thickness H is 20 mm.

Further, 6 is a backing plate made of a color steel plate with a thickness of 0.5 shoes.

Also, 7 is a paper honeycomb sheet, cell size 8jI#
The paper honeycomb sheet is made of kraft paper with a thickness of 0.11, and its thickness S is 10 mm, and when it is hung on the back surface 6a of the backing plate 6 as shown in FIG. The back surface 7a of the clip 4 protrudes from the back end surface 4a of the clip 4 by R=3#.

Using each of the above members, a stacked product 8 of a metal panel 1, an aluminum honeycomb sheet 5 coated with an epoxy resin adhesive on both sides, and a backing plate 6 is assembled on each back side as shown in FIGS. 1 and 2. With the paper honeycomb sheets 7 placed on the backing plate 6, a plurality of sets are stacked between the fixed platen 9 and the movable platen 10 of the press, and the pressure is maintained at a surface pressure of 1.5 ICI/ai to apply the adhesive. Solidified. The architectural panel 11 obtained by removing the paper honeycomb sheet 7 after assimilating the adhesive has a smooth appearance with no local unevenness on the surface of the main plate part 2, and its flatness is as good as 1/800. there were.

The present 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. In the above embodiment, if the clip 4 is not attached to the folding piece 3, the back surface 6a of the backing plate 6 may protrude by 0.5 or more from the end surface 3a of the first side of the folding piece 3. . Further, in the above embodiment, the stacked products 8 were pressurized by a press, but this pressurization may also be performed by tightening and binding metal bands.

(Effects of the Invention) As explained above, according to the present invention, it is possible to economically and efficiently manufacture architectural panels having a smooth panel surface and an excellent appearance by using spacers that are lightweight, inexpensive, and easy to handle. Can be done.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the manufacturing process of a construction panel showing an embodiment of the present invention, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is a partially cutaway perspective view of the obtained construction panel. FIG. 4 is a diagram corresponding to FIG. 2 showing an example of a method other than the present invention. DESCRIPTION OF SYMBOLS 1... Metal panel, 2... Main plate part, 3... Bent piece part, 3a... Back side end surface, 4... Clip, 4a.
... Back side end surface of clip, 5... Aluminum honeycomb sheet, 6... Backing plate, 6a... Back side, 7... Paper honeycomb sheet, 7a... Back side, 8... Overlapping Product, 11... Architectural panel, 12... Space on the back side of the panel.

Claims (1)

[Claims] 1. A metal panel in which bent pieces are continuously provided around the four circumferences of the main plate;
When an aluminum honeycomb sheet coated with adhesive on both sides and a backing plate made of a metal plate are stacked together, and multiple sets of these stacked products are stacked and bonded under pressure, the backing plate and the bent piece are Manufacturing a construction panel, characterized in that a paper honeycomb sheet that partially fits into a space on the back side of the panel surrounded by a spacer is used as a spacer, and the paper honeycomb sheet is removed after adhesive solidification to obtain a construction panel. Method. 2. The method for manufacturing a construction panel according to claim 1, wherein the back surface of the paper honeycomb sheet in contact with the backing plate protrudes by 0.5 mm or more from the back end surface of the metal panel. 3. The method for manufacturing a construction panel according to claim 2, wherein the back end surface of the metal panel is the back end surface of the folded piece. 4. The method of manufacturing a construction panel according to claim 2, wherein the back end face of the metal panel is the back end face of a clip fixed to the folding piece.