JPH0262384B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a composite panel in which a fiber-containing hardening plastic material is layered on a metal plate.

(Prior art) The inventors of the present invention disclosed in Japanese Unexamined Patent Publication No. 135249/1983 that a metal plate formed into a desired shape was placed on a surface plate, and an adhesive was applied to the surface of the metal plate. Later, he proposed a method for manufacturing a composite panel in which the same metal plate was used as a formwork, and a fiber-containing hardening plastic material was layered on the surface of the formwork and bonded together with the metal plate.

(Problem to be solved by the invention) However, since the thermal elongation of the metal plate and the hardening plastic material containing fibers are different, when the composite panel manufactured by the above method is used for the exterior of a building, the surface When exposed to solar heat, unevenness occurs on the surface of the metal plate due to differences in thermal elongation, and the surface flatness cannot be maintained when the fiber-containing plastic material hardens during the manufacturing process of composite panels.

(Means for Solving the Problems) The present invention was proposed to solve the above problems, and consists of placing a metal plate formed in a desired shape on a surface plate, and A foamed sheet material with chilli sand layered on both the top and bottom sides is adhered to the surface of the board using an elastic adhesive, and after drying, a metal plate to which the foamed sheet material is adhered is used as a formwork, and fibers are added to the surface of the sheet material. The present invention relates to a method of manufacturing a composite panel characterized by layering a hardenable plastic material.

(Function) As described above, in the present invention, a foam sheet material with chilli sand layered on both upper and lower surfaces is adhered and dried to the surface of a metal plate placed on a surface plate via an elastic adhesive. The foam sheet material is firmly adhered to the metal plate by the adhesive biting into the texture of the chilli sand on the bottom surface of the foam sheet.

In this way, in the present invention, a metal plate to which a foamed sheet material is adhered is used as a formwork, and a fiber-containing hardening plastic material is poured onto the surface of the mold, and a layer is formed on the surface of the foamed sheet material. The plastic material bites into the texture of the applied chilli sand and is integrally bonded to the foam sheet material.

(Effects of the Invention) According to the present invention, as described above, the foamed sheet material in which the fiber-containing curable plastic material is integrated and the chilled sand is layered on the upper and lower surfaces is bonded to the metal plate through the elastic adhesive. Because of the elastic adhesive, the foam sheet material absorbs the expansion and contraction due to the difference in thermal elongation with the metal plate, and the force due to thermal elongation that is applied to the fiber-filled hardening plastic material integrated into the foam sheet material. Since the surface of the composite panel is buffered, there is no possibility that changes such as unevenness will occur on the surface of the composite panel.

(Example) The present invention will be described below with reference to the illustrated embodiments.

A metal plate 1 that has been bent into a desired shape is placed on a surface plate 2, and a chloroprene-based, epoxy-based,
Elastic adhesives such as silicone and urethane adhesives 3
A foamed sheet material 5 such as a polyurethane foamed sheet or a polyethylene foamed sheet having layers of polyester cold sand 4 layered on the upper and lower surfaces is attached to the surface thereof and dried. At this time, a part of the adhesive 3 gets into the texture of the cold sand 4 on the lower surface of the foam sheet material 5,
The foam sheet material 5 is integrally bonded to the metal plate 1.

Next, an elastic material 6 such as foamed urethane is attached to both ends of the metal plate 1, and then a fiber-containing hardening plastic material 7 such as glass fiber-containing concrete is sprayed or applied onto the foamed sheet material 5. At this time, a part of the plastic material 7 bites into the texture of the cold sand 4 on the upper surface of the foamed sheet material 5, and becomes integrated with the plastic material 7, the foamed sheet material 5, and the metal plate 1.

In the figure, reference numeral 8 denotes a peeling tape attached to the bent portion of the metal plate 1 in contact with the plastic substance 7, and 9 is a peeling tape attached to the surface plate 2 on the outside of the metal plate 1 with screws or the like so as to be detachable. It is a plate to prevent it from falling.

After the plastic material 6 is hardened and integrated with the metal plate 1, the metal plate 1 is removed from the surface plate 2 to complete the manufacture of the composite panel.

In the illustrated embodiment, as described above, a metal plate 1 is used as a formwork, to which a foamed sheet material 5 having a layer of cold sand 4 layered on both upper and lower surfaces is adhered via an elastic adhesive 3.
Since the fiber-containing curable plastic material 7 is sprayed or applied, the plastic material 7 bites into the texture of the cold sand 4 on the upper surface of the foamed sheet material 5 and becomes integrated. on the other hand,
The foamed sheet material 5 is bonded to the metal plate 1 via the elastic adhesive 3 so that it can follow the difference in thermal elongation, so the difference in thermal elongation causes the difference between the metal plate 1 and the plastic material 7. The forces applied therebetween are buffered and do not cause deformation or distortion on the surface of the composite panel produced by this method.

In addition, since the elastic material 6 is arranged around the edge of the panel, even if expansion and contraction force due to heat is applied to the panel,
No change occurs to the panel body.

Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of the method for manufacturing a composite panel according to the present invention, FIG. 2 is a partial longitudinal sectional view of a foamed sheet material, and FIG. 3 is a plan view thereof. 1...Metal plate, 2...Surface plate, 3...Elastic adhesive, 4...Crystal, 5...Foam sheet material, 7...
Fiber-filled hardening plastic material.

Claims (1)

[Claims] 1. A metal plate formed into the desired shape is placed on a surface plate, and a porous foam sheet material coated with a layer of cold sand is adhered to the top and bottom surfaces of the metal plate using an elastic adhesive. After drying, a metal plate to which the foamed sheet material is bonded is used as a formwork, and a fiber-containing hardening plastic material is layered on the surface of the metal plate.