JPH0726693A - Resin-laminated metallic cut plate panel - Google Patents

Abstract

PURPOSE:To ensure a fine view, and to improve quality by partially notching and bending the face of a resin-laminated metal plate functioning as surface decorating from a rear and equalizing the end face with a panel surface in material and holding the continuity of a pattern. CONSTITUTION:Aluminum, an aluminum alloy or an iron or stainless metal is used as a base material, and a synthetic resin film such as a fluororesin and paints are laminated on the surface of the metal plate 1. The rear of the resin-laminated metal plate panel is notched in the direction of plate thickness from the rear of the panel in 30% or more of plate thickness, and rustproof treatment is carried out to a notched section and the rear and an end face is bent. Accordingly, the end face of the panel is equalized with a panel surface in material, thus applying the panel to a sheath material and a building material having excellent performance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin-laminated metal plate, and more specifically, an exterior having an aesthetically pleasing appearance and excellent performance in which the panel end face is the same as and continuous with the panel surface material. The present invention relates to a resin laminated metal panel suitable for materials and construction materials.

[0002]

2. Description of the Related Art Recently, the problems to be solved by the invention
As a construction wall material construction method, a method using a cut metal panel has been increasing, and in that case, most of the surface and end surfaces are treated by electrolytic coloring or painting before use. In the method using a so-called pre-coated plate, the cut end face is exposed to the outside, which is unfavorable in terms of appearance and is not preferable in terms of quality such as corrosion from the end face. Was there.

As a conventional method for treating the end surface of a precoated plate, it is possible to treat it by a method such as spray coating or brush coating, but it is necessary to mask the non-coated surface, and the brush coating is uniform. However, in the case of a precoated plate which had no surface treatment such as printing, there was no continuity of the pattern up to the end faces, and the appearance was aesthetically unsatisfactory.

Further, if the pretreatment is not sufficiently performed by treating only the end face after cutting, the adhesion of the coating on the end face is inferior in the long term, and there is a problem that the coating comes off from the end face and peels off. It was

[0005]

According to the present invention, the end surface of a resin laminated metal plate having a surface decoration is partially cut away from the back surface and then bent so that the end surface formed is the same as the panel surface material. It is continuous and aesthetically pleasing,
It is intended to provide a resin laminated metal cutting board panel which is preferable in terms of quality.

The contents of the present invention will be described in more detail below. The resin-laminated metal plate in the present invention refers to a material whose surface is already made up before the panel is formed, that is, a material in which a synthetic resin is laminated on the metal plate, and is not particularly limited.

The above metal is not particularly limited to a metal used as an exterior material or other building material, and any metal plate can be used, but generally,
For example, it is an iron-based, aluminum-based, copper-based, titanium-based, nickel-based, or other metal plate, and among them, iron-based, aluminum-based, and copper-based metal plates are preferable, and iron-based and aluminum-based metal plates are particularly preferable.

The iron-based metal plate may be any metal plate as long as it is a metal plate that mainly contains iron in composition,
Specifically, there are, for example, cold-rolled steel sheet, galvanized steel sheet, zinc alloy-plated steel sheet, aluminum-plated steel sheet, copper-plated steel sheet, stainless steel sheet, phosphoric acid-treated steel sheet, aluminum-zinc alloy-plated steel sheet, and the like. Steel plates, zinc alloy plated steel plates, aluminum plated steel plates and aluminum-zinc alloy plated steel plates are preferred.

As the aluminum-based metal,
Any metal may be used as long as it is a metal compositionally containing mainly aluminum metal, but in general, for example,
It is aluminum described on pages 13 to 22 of "Aluminum Handbook (2nd Edition)" issued by Japan Light Metals Association on September 30, 1982, specifically, pure aluminum, (Al-Cu).
System, (Al-Mn) system, (Al-Si) system, (Al-Mg) system, (Al-Mg
-Si) type, (Al-Zn-Mg) type, etc., among which pure aluminum type, (Al-Mn) type and (Al-Mg) type are preferable. Thus, as described above, various metals can be adopted, and among these, aluminum alone or various aluminum alloys such as duralumin, and aluminum-based metals such as aluminum metal containing a small amount of manganese, magnesium and the like are preferable. In addition, copper-based metals, titanium-based metals and the like can also be preferably used.

The thickness of the metal plate in the present invention is not particularly limited, but generally, for example, 0.15 to 6 m.
m, preferably 1.0-5.5 mm. More preferably 1.5 to 5.0 m
m.

It is preferable that the surface of the metal is surface-treated so that the synthetic resin can be easily adhered thereto.
Examples of this surface treatment include mechanical treatment, chemical treatment, and primer treatment.

The mechanical treatment includes sandblast treatment, buffing treatment, wire brush treatment, barrel treatment and steel wool polishing treatment, and the chemical treatment includes, for example, plating treatment by melting, electrolysis and eutectoid plating. , Chemical treatment with chromate, phosphate, chromate, oxalic acid, chemical conversion etching treatment, electrolytic etching treatment, anodic oxide coating treatment. Further, when the primer treatment is performed, it is preferable to add, for example, a silane coupling agent or a titanate coupling agent, if necessary. When the metal is aluminum, it is preferably subjected to electrolytic etching treatment, chemical conversion etching treatment, chemical degreasing, anodic oxide film treatment (alumite), and chromate treatment.

The above synthetic resin is not particularly limited, but fluorine resin, acrylic resin, methacrylic resin, polyester resin, polyurethane resin,
Examples thereof include silicone-based resins, epoxy-based resins, polycarbonate-based resins, vinyl chloride-based resins, polyolefin-based resins, nylon-based resins, and the like, with fluorine-based resins being particularly preferable as weather-resistant and corrosion-resistant materials.

In the present invention, the "fluorine-based resin" is not particularly limited as long as it is a thermoplastic resin containing fluorine in the molecular structural formula of the resin. Specifically, for example,
It is a tetrafluoroethylene-based resin having four fluorine atoms in the molecular structure of the resin, a trifluoroethylene-based resin, a difluoroethylene-based resin, a monofluorinated ethylene-based resin, a composite of these resins, and the like. Among them, tetrafluoroethylene-based resin and difluoroethylene-based resin are preferable, and tetrafluoroethylene-based resin is more preferable.

Here, the tetrafluoroethylene-based resin is specifically, for example, tetrafluoroethylene resin (PTFE), ethylene tetrafluoride / perfluoroalkoxyethylene copolymer (PFA), or tetrafluoroethylene.・ Propylene hexafluoride / perfluoroalkoxyethylene copolymer (EPE), tetrafluoroethylene / ethylene copolymer (ETFE), tetrafluoroethylene / hexafluoropropylene copolymer (FEP), etc. PFA, ETFE and EPE are preferred, especially ETFE.

The above-mentioned trifluoroethylene resin is
Specifically, for example, trifluorochloroethylene resin (CTF
E) and trifluorochloroethylene / ethylene copolymer (E
CTFE) and the like, and among them, ECTFE is preferable. The above-mentioned ethylene difluoride-based resin and ethylene monofluoride-based resin are, for example, vinylidene fluoride resin (PVDF) and vinyl fluoride resin (PVF). Further, copolymers obtained by combining a plurality of appropriately selected from the above fluororesins, and mixtures of these with other conventionally known resins are also preferable.

As a method of laminating the above synthetic resin,
Although not particularly limited, for example, spraying with a synthetic resin coating, brush coating, coating by a method such as static electricity,
Gravure with synthetic resin ink, offset, printing of screens, etc., synthetic resin film or printed synthetic resin film, a method of laminating on a metal plate by a method of synthetic resin adhesive or heat fusion, also these. A plurality of appropriately selected layers may be combined and a plurality of layers may be laminated, and preferably, a synthetic resin film is laminated with an adhesive or heat fusion. The thickness of the resin laminated portion is preferably 5 to 500 μ,
20 to 100μ is more preferable.

In the synthetic resin, organic pigments, inorganic pigments,
It is possible to color with a colorant such as an extender pigment, and the addition amount thereof may be less than 70%. Further, in addition to the above colorant, an ultraviolet absorber, a light stabilizer, an antioxidant, a tackifier, a metal flake and the like may be contained.

Examples of the shape in which the end face of the resin-laminated metal plate in the present invention is partially cut away include, for example, the method of cutting with a part of the end face left and the method of V-cut shown in FIG. By partially notching and bending further, the plate thickness of the newly formed end surface is
The cutout shape may be the same as the plate thickness before the partial cutout, but the above two shapes are preferable from the viewpoints of workability and workability.

The depth of cut at the time of partial cutting is preferably 30% or more and less than the synthetic resin thickness, and more preferably 50% or more of the plate thickness. When it is less than 30%, the bending radius becomes large when bending is performed in the next processing, and it is not preferable in appearance for use as a cut panel panel characterized by the sharpness of the panel end surface.

The cutting method is not particularly specified, but examples include cutting with a panel saw, a running saw, a V-cut machine, a milling machine, milling, end milling and the like. The method of bending after cutting is not particularly limited, but bending by a brake press, press forming, roll forming, etc. may be mentioned.

The anticorrosion treatment in the present invention is a treatment performed to prevent corrosion of the panel end surface when the panel is attached to the wall surface and rainwater enters from the bent end surface. It is to prevent the end part from falling off or peeling. In addition, this rust prevention treatment
It is desirable to treat the partially cutout or the backside.

The rust preventive treatment is not particularly limited as long as it suppresses the generation of rust on the metal. For example, chromate treatment in the phosphoric acid chromic acid method or chromic acid method, and non-fluoride treatment in the silicofluoride method. Chemical film treatment methods such as chromate treatment and boehmite treatment. Plating treatment such as anodic oxide film treatment, electroplating or chemical plating, vapor deposition hot dip plating in sulfuric acid anodic oxidation, oxalic acid anodic oxidation, chromic acid electrolysis method, electrolytic coloring method and the like. Anti-corrosion paint with added anti-corrosion pigments such as red lead, zinc chloromate, calcium leadate, strontium chromate and zinc rich paint. Examples thereof include paints and adhesives such as polyurethane resins, epoxy resins, acrylic resins, silicone resins, fluorine resins, vinyl chloride resins, and alkyd resins.

In the present invention, the cut plate panel is a metal plate cut into a certain shape, and its shape is not particularly limited, and when it is attached to a wall surface, the end face of the surface decorative plate is external. It refers to the exposed panel. For example, the shape may be any of a rectangle, a circle, an ellipse, and a polygon, but the rectangle is preferable.

[0025]

EXAMPLES Specific examples of the present invention will be described below. However, the present invention is not limited to the following examples.

Example 1 As a resin laminated metal plate, FAL general grade manufactured by Nippon Carbide Industry Co., Ltd. was used. The method for producing the resin laminated metal plate is as follows. First, JIS H400 as an aluminum substrate
Ra (center line average roughness) by sandblasting the surface of the nuclear aluminum plate (using reduced iron content 80 mesh, pneumatic pressure 3 kg / cm ² ) using an A-1100 (thickness 3 mm) aluminum plate specified in 0 Was reduced to 1.8 μm, then 4%
Electrolytic etching was carried out in a sodium chloride aqueous solution at a current density of 3.3 A / dm ² to form a rough surface with Ra of 3.5 μm.

This aluminum plate was heated to a temperature of 350 ° C., and a black ethylene tetrafluoroethylene copolymer containing 2 parts by weight of carbon black having a thickness of 50 μm was heat fused to the film on the rough surface formed. Then, a fluororesin laminated aluminum plate was obtained.

In the heat fusion, the heated metal and the film are pressed with a silicon roll having a diameter of 10 cm to apply a pressing force of 15 cm.
It was carried out under the condition of kg / cm ² . The resin laminated metal plate formed as described above is partially cut into four pieces in the shape shown in FIG. 1 with a Lannin Giso, and the ends are bent using a press brake.
Then, a metal mold material was attached to the back surface to prepare an outer wall material as shown in FIG.

Example 2 As a resin laminated metal plate, FAL printing grade manufactured by Nippon Carbide Industry Co., Ltd. was used. The creation method is as follows. First, as a printing ink, a composition was prepared by dispersing and kneading a composition having the following composition ratio in an ink mill to prepare an ink composition.

Kainer 9301 was used as the ink base resin in this ink composition, and dissolved in isophorone / cyclohexanone (1/1) at the following blending ratio, and fine particles of ethylene tetrafluoroethylene copolymer ( A dispersion of AFLON COP Z8820) was used as the ink base. Aflon COP Z8820 90 parts by weight Kainer 9301 10 parts by weight Isophorone 75 parts by weight Cyclohexanone 75 parts by weight Cobalt blue 50 parts by weight

Electrolytic etching is performed by the method described in Example 1 to form an aluminum plate having a rough surface with Ra of 3.5 μm. The fluorine ink prepared by the above-mentioned method was printed on the aluminum plate on a rough surface using a screen with a 180-mesh screen in a grain pattern, and then dried at 120 ° C. for 10 minutes. This printed aluminum plate is heated to a temperature of 350 ° C., the formed printing surface is heat-fused with an ethylene / tetrafluoroethylene copolymer film having a thickness of 50 μm, and then the temperature is
Reheating was performed under the conditions of 300 ° C. for 10 minutes to obtain a fluororesin laminated aluminum plate.

The resin laminated metal plate formed as described above is partially cut on the four sides by a V-cut machine in the shape of FIG. 2, and then partially cut using Asahi Glass Lumiflon LF600 (fluorine resin paint). After the applied portion was applied and dried, the end portion was bent using a press brake, and then a metal mold material was attached to the back surface to prepare an outer wall material as shown in FIG.

Example 3 A resin laminated metal plate was prepared in the same manner as in Example 1, four sides were partially cut into the shape shown in FIG. 1, the ends were bent using a press brake, and further curved with three rolls. Then, a metal mold material was attached to the back surface to prepare an R panel as shown in FIG.

Example 4 A resin-laminated metal plate was prepared in the same manner as in Example 1, four sides were partially cut into the shape shown in FIG. 1, the ends were bent using a press brake, and further bending was performed using a press brake. Then, a head panel as shown in FIG. 5 was prepared.

Comparative Example 1 A resin laminated metal plate was prepared in the same manner as in Example 1, and an outer wall material having a shape as shown in FIG. 3 in which four sides were simply cut was prepared.

Comparative Example 2 A resin-laminated metal plate was prepared in the same manner as in Example 1, four sides were simply cut, and the end face was made of Neugermet # 20 having the same color.
Apply with 00 (Toa Paint Co., Ltd.), 130 ℃ × 20
It was cured in minutes to prepare an outer wall material as shown in FIG.

The performance of each of the examples and comparative examples was evaluated, and the results are shown in Table 1. Appearance: After making the panel, the appearance was judged by looking at the panel surface and the end faces. ◎ The panel surface and the end surface are the same with no discomfort ○ The panel surface and the end surface are almost unnoticeable × The panel surface and the end surface are different and cannot be used

Cass test: According to JIS H8681, sodium chloride 5%, cupric chloride 0.26%, glacial acetic acid 0.1%, PH 3.0.
Using the ISO type tester (manufactured by Suga Test Instruments Co., Ltd.), an end face erosion test (250 hr) was performed on the Cass test liquid of No. 1. ◎ End face erosion width is within 0.5mm ○ End face erosion width is within 2mm △ The entire end face is eroded × The end face and part of the surface are eroded

Heat-cooling cycle: In a test for observing the adhesion of the end portion, the test piece was treated with boiling water 8Hr and -20 ° C 16Hr as one cycle, and this was performed for 7 cycles to judge the appearance of the end face. ◎ No change in appearance ○ No peeling or blistering, but decreased gloss on the end face △ No peeling or blistering, discolored end face × Peeling or blistering

Outdoor exposure test: A panel was mounted on the outdoor south surface at 45 °, exposed for 3 years, and the gloss and color tone of the end surface after the test were examined.
The peeled state was observed and the state was judged. ◎ There is no surface deterioration of the end face and no change in gloss compared to the storage test piece, and there is little change in color tone. ○ Color difference ΔE is less than 5, but gloss reduction is small. △ Color difference ΔE is 5 or more and less than 10, Decrease in gloss is observed × Color difference ΔE is 10 or more, corrosion and peeling are recognized

[0041]

[Table 1]

[Brief description of drawings]

[Figure 1]

FIG. 2A is a perspective view of an end face according to the present invention as seen from the back surface side of a resin laminated metal plate in which an end face is partially cut out, and B is an enlarged sectional view of a D part in which a partial cutout is performed, C is an enlarged sectional view in which the end portion is bent.

FIG. 3 is a perspective view of a cutting plate panel according to the present invention.

FIG. 4 is a perspective view of a cut plate R panel according to the present invention.

FIG. 5 is a perspective view of a cutting board head panel according to the present invention.

[Explanation of symbols]

 1 metal plate 2 resin laminated part 3 resin laminated metal cutting plate 4 metal mold

Claims (9)

[Claims] 1. An edge surface of a resin laminated metal plate is partially cut out in the plate thickness direction from the back surface side, and then the edge surface is bent so that the edge surface formed is the same as the panel surface material and continuous. Resin laminated metal cutting board panel. 2. The resin-laminated metal cut plate according to claim 1, wherein after the partial cutout is made in the plate thickness direction, the partially cutout part or the back surface is subjected to rust prevention treatment. panel. 3. The resin-laminated metal cutting board panel according to claim 1, wherein the partially notched depth is at least 30% or more of the plate thickness. 4. The resin-laminated metal cutting panel according to claim 1, wherein the resin-laminated metal plate is laminated with a synthetic resin film on the surface of the metal plate by an adhesive or a heat fusion method. 5. The resin laminated metal cutting board panel according to claim 1, wherein the resin laminated metal plate is laminated on the surface of the metal plate with a synthetic resin paint. 6. The resin laminated metal cutting board panel according to claim 4, wherein the synthetic resin is a fluorine resin. 7. The resin-laminated metal cutting panel according to claim 1, wherein the metal plate is aluminum or an aluminum alloy. 8. The metal plate is an iron-based metal.
The resin laminated metal cutting board panel described. 9. The resin laminated metal cutting panel according to claim 1, wherein the metal plate is a stainless steel metal.