JP2001096356A - Casting products of door of gate, facing panel, etc. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a painted surface having a massive feeling of antique-looking iron rust on the surface of a casting aluminum door of gate. SOLUTION: A fine rugged substrate surface to be painted 1 is formed by shot blasting on the whole surface of door of gate A. A painted surface 2 is formed on the fine rugged surface by double layer painting, one layer is painted by brown based or black based color spray painting and the other is painted by dark brown based or red rust speak based color spray painting. A massive feeling of red rust is maintained by shade on the fine rugged surface and the color tone of painted surface 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to a cast product such as a gate and an exterior panel, which is suitable for use as an exterior product or a building material.

[0002]

For example, exterior products and building materials such as cement-based molded bricks simulating used bricks used in the United Kingdom have been proposed, and there is a tendency for designs rich in old-fashioned color to give a sense of history. However, the design of casting products varies in shape, but there is little room for choice in color tone, since some products are generally painted in patina.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a gate and an exterior having a textured painted surface such as a metal corrosion tone or a stone grain tone rich in the old color tone. Provide casting products such as panels.

[0004]

SUMMARY OF THE INVENTION In accordance with the above objects, the present invention is to improve the texture of a painted surface color tone by forming a painted surface with a base color tone and a speckled color tone and giving a shade of light to the color tone. In addition, the base surface of the coating is made into a fine uneven surface by shot blasting to form a casting product full of texture of metal corrosion tone or stone grain tone. The invention relates to a metal casting product having a surface coated with a predetermined base color such as a metal corrosion tone and a stone grain tone and a spot color tone, wherein the base surface of the metal casting is coated with fine irregularities by shot blasting. A cast product such as a gate, an exterior panel, or the like, characterized in that a fine shadow is expressed on a painted surface as a surface. 3. A casting product such as a gate and an exterior panel according to claim 1, wherein said casting product is an aluminum casting product, wherein said casting product is a casting product which preferably performs formation of said metal casting. In the invention described in (1), the painted surface is made of iron or rust-like iron corrosion so that the painted surface has a preferable metallic corrosion tone rich in old color and full of texture. With a base color tone and a dark brown or red spot color tone, and the shot diameter of the shot blast is 0.8 mm or more and 2.5 mm or more.
mm or less, and is a cast product such as a gate or an exterior panel according to claim 1 or 2, wherein the invention according to claim 4 forms a painted surface easily and reliably and is used outdoors. 2. The cast product according to claim 1, wherein said coated surface is formed by spray-baking of a thermosetting acrylic paint so as to ensure the weather resistance as much as possible. , Gate according to 2 or 3,
Cast products, such as exterior panels, are used as means for solving the above-mentioned problems as the gist of the invention.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the following, the present invention will be described more specifically with reference to the drawings, wherein A is a gate, and the gate A is
This is a metal casting product having a surface coated with a predetermined base color tone and spot color tone of metal corrosion tone. In this example, the gate A is an aluminum casting product.

That is, in this example, the gate A is for domestic use which is integrally formed by casting an aluminum alloy, and the entire front surface, that is, the front and rear surfaces and side surfaces of the gate A including the pattern portion. Painted surface with metallic corrosion tone 2
It is provided with.

[0007] The painted surface 2 of the present example is made of iron-rust-like iron-corrosion tone, which is a painted surface with a brown or black base color tone and a dark brown or red-based spot color tone. It is rich in old-fashioned color.

[0008] At this time, the casting base surface 1 of the cast gate A is formed as a fine irregular surface by shot blasting, and a fine shadow is expressed on the iron rust-like coating surface 2 on the surface. The coating base surface 1 has a shot diameter of the above shot blast of 0.8 mm or more and 2.5 m.
m or less, after casting, unpainted gate A
In contrast, for example, a high-speed projection is performed by a centrifugal projection method to form a fine uneven surface. At this time, the shot diameter of the shot blast is, for example, about 0.8 mm or more and 2.5 mm or less. If the distance is less than 8 mm, the shot becomes small, and the unevenness is too fine to give a good impression of the shadow due to iron corrosion on the uneven surface. If it exceeds 2.5 mm, the shot becomes large and the unevenness becomes coarse. This makes it impossible to obtain a good impression of the natural nature of iron corrosion on the uneven surface, while at the same time inviting the possibility that the pattern formed on the gate A may be crushed. It can be used as appropriate, but in particular, by mixing a plurality of different diameters and projecting them at high speed, fine irregularities can It is effective for those with.

In this embodiment, the shot is made of steel ball, for example, a super hard material for pre-welding treatment for removing metal, especially oil and dirt attached to steel, etc., to uniformly apply shot blast to the surface of the aluminum casting. By applying, the fine uneven surface, that is, the fine uneven surface of different diameter is formed so as to be uniformly distributed over the entire surface of the gate A.

The painted surface 2 is formed by spray baking using a thermosetting acrylic resin paint suitable for performing the coating in the present embodiment. After spray coating so that the thickness of the coating film is, for example, 40 ± 5 μm, baking and drying are performed at a high temperature, and thermosetting is performed by crosslinking.

At this time, the above-mentioned coating is performed by applying a base color tone forming the base color tone portion 21 and a spot color tone forming the spot color tone portion 22 in a double manner. In order to express the color tone, for example, it is done by selecting the pigment as appropriate, for example, as a brown type with a dull impression or as a black type with a darker impression, and paint with a spot color. In order to express the color of red rust that appears as spots in iron rust, for example, a dark brown system with a reddish impression or a reddish system with a reddish impression, This is performed by appropriately selecting the pigment.

In the case of these double coatings, it is good to adjust the density of speckles, particularly in the case of speckled color coating, so that the speckled color that expresses red rust does not become too dark. The density can be adjusted relatively easily by applying the method.

In the case of the above-mentioned double coating, a base color paint, for example, 15 to 20 μm, spot color paint is applied in two coats.
By setting the thickness to about 0 to 25 μm, performing baking and drying after coating the base color, and then performing the coating with the spot color and the baking coating, the texture of the iron rust can be highly secured. .

This can be illustrated by a process. A casting process for forming the shape of the gate A, a fine unevenness forming process for forming fine unevenness on the undercoating surface 1 of the surface by shot blasting, and a blowing of a base color of iron rust. A base coating step of applying a base coat, a primary baking drying step of baking and drying the base color paint, a spot coating step of performing a spray coating of a spot color of red rust on iron rust, and a paint of the spot color. A second baking and drying step of baking and drying is performed, whereby a gate A having a corrosion-like iron-rust shape can be formed.

In the gate A constructed as described above, the fine irregularities of the undercoating surface 1 by shot blast express the shadow of light delicately, and the impression of partial expansion and collapse of the surface seen in the corrosion of iron rust. As a result, the spot color tone of the red rust exhibits unevenness along with the fine unevenness, so that the color tone of the painted surface 2 reproduces the state of iron rust, and it is possible to exhibit a preferable color tone with a very rich old color feeling. .

At this time, in the present embodiment, the gate A has the fine irregularities on the base coating surface 1 due to the shot blast.
Not only the front but also the side that intersects it, so that the side of the gate made by the conventional casting has a smooth impression due to the taper, while the front and the back have a natural unevenness Can be exhibited.

The illustrated example is as described above. For example, a painted surface having a textured grain tone with a porous surface, such as Oya stone, is used. Use a gray system, and use a dark gray or black system for the spot color paint. If necessary, the spot color paint will have a plurality of different colors, including this case. Use a paint containing multiple colors of pigments as a single process or use multiple spot coating processes for each color tone, use a cast iron metal casting product, and use a variety of exterior products, including exterior panels, for casting products In the practice of the present invention, including the use of metal casting products, painted surfaces, their base colors, spot colors, paint used for painting, etc. ,this Relationship, addition or the like for these may be of even various forms unless contrary to the gist of the invention.

[0018]

The present invention is configured as described above.
According to the first aspect of the present invention, the paint base surface is formed by shot blasting so as to improve the texture of the paint surface color tone by forming the paint surface with the base color tone and the spot color tone and by giving a shade of light to these color tones. By forming a fine uneven surface, a cast product full of texture of metal corrosion tone or stone grain tone is formed, and painted surface with metal corrosion tone or stone grain tone of rich old color tone. It is possible to provide a cast product such as a gate, an exterior panel or the like having the above. The invention according to claim 2 can be a cast product which preferably forms the fine uneven surface by the shot blast. According to the invention described in the above, the painted surface can be made to have a preferable metallic corrosion tone rich in the old color and rich in texture, and the invention described in claim 4 can easily and reliably form the painted surface. As casting products used outdoors with Nau, it can be obtained by ensuring that weather resistance as possible.

[Brief description of the drawings]

FIG. 1 is a front view of a gate.

FIG. 2 is a longitudinal sectional view showing an enlarged model of a paint base surface and a paint surface.

FIG. 3 is a process chart for forming a surface of a gate.

[Explanation of symbols]

 A Gate 1 Base paint surface 2 Paint surface 21 Base color tone part 22 Spot color tone part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B22D 25/02 B22D 25/02 G B44F 9/10 B44F 9/10 C09D 5/00 C09D 5/00 Z 5 / 29 5/29 5/46 5/46 133/00 133/00 (72) Inventor Ryoji Nozaki 1048 Hirooka Nomura, Shiojiri City, Nagano Prefecture Yamato Intec Co., Ltd.F-term (reference) 4D075 AA01 BB04X CB21 CB40 DA10 DB07 DB08 DC03 EA19 EB22 4J038 CG141 HA066 HA216 KA08 NA01 NA24 PA06 PA07 PA19 PB05 PC02

Claims (4)

[Claims] 1. A metal casting product having a surface coated with a predetermined base color tone such as a metal corrosion tone and a grain tone tone and a spot color tone, and a coating base surface of the metal casting product is shot blasted. Cast products, such as gates and exterior panels, characterized by the appearance of fine shadows on the painted surface as fine irregularities. 2. A casting product such as a gate or an exterior panel according to claim 1, wherein said metal casting product is an aluminum casting product. 3. The painted surface is made of a base color of brown or black and a spot color of dark brown or red based on an iron rust-like iron corrosion tone. 3. A casting product such as a gate or an exterior panel according to claim 1, wherein the thickness is 8 mm or more and 2.5 mm or less. 4. A cast product such as a gate or an exterior panel according to claim 1, wherein said painted surface is formed by spray baking of a thermosetting acrylic paint.