JPH0665517U - Shape material - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a frame material used as a sash frame material, a corner material such as a partition wall or a pillar, and having an excellent appearance. A metal foil 2 is laminated on the surface of a base material 1 made of a rigid material and having a corner portion C in the longitudinal direction, and the metal foil 2 is bent and covered along the corner portion C. Which has a rounded corner C of the base material 1 in advance,
The radius is such that the metal foil 2 can be bent while being in close contact with the surface of the corner portion C. Therefore,
In the laminating step, the metal foil 2 is deformed while smoothly following the surface of the corner portion C, and there is no room for wrinkling.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention is excellent in surface smoothness and gloss, which is mainly used as a structural material for various buildings such as corner materials such as partition walls and columns, sash frame materials, skirting boards and joint materials. Regarding the mold material.

[0002]

[Prior art]

 Conventionally, it has been used as a structural material for various kinds of buildings such as partition walls, pillars and other corner materials, sash frame materials, skirting boards, joint materials, etc., or as a showcase frame material, etc., with a smooth and smooth surface. Excellent mold material is used.

This mold material is made of a rigid material such as aluminum, aluminum alloy, and stainless steel, and has a predetermined cross-sectional shape using various forming methods such as cold drawing, hot drawing, extrusion, and bending. A base material having a thickness of 100 to 200 μm, for example, a stainless steel foil, is laminated on one surface of the base material by using a laminating means such as bonding with an adhesive. It is a thing.

This mold material has the mechanical strength required as a structural material by making the base material a rigid material, and a metal foil is laminated on the surface of the material to provide decorativeness, that is, smoothness to the structural material. It has a cosmetic effect such as glossiness, pattern imparting, etc., so that it can be applied to high-grade instructions in recent years. Compared to the one manufactured from a single material for the same purpose, the secondary It does not require polishing due to processing, and even if the material of the base material is the same, if the metal foil to be laminated on it is appropriately selected from a wide variety of materials, it may have different surface decoration performance. It is an excellent mold material because it can be easily obtained.

[0005]

[Problems to be solved by the device]

 By the way, in the conventional laminating step in the processing step of the mold material, while the base material is transferred in one direction, on the other hand, a long metal foil is unwound from the roll in the same direction, and the metal foil or the base material is fed. Or, it is usual to press-bond or heat-press after applying an adhesive to the laminated surface of both.

Then, as shown in FIG. 2, when a metal foil b is laminated on the surface of a base material a having a corner portion C in the longitudinal direction, generally, the corner portion C and a plane A located on the left and right sides thereof are used. Rather than stacking on both sides of B at the same time, first, one sticking roll (not shown) is used to stack one side of the metal foil b on the plane A (or the plane B), and then another sticking roll. Then, the other side of the metal foil b is bent along the corner C so that the metal foil b is bent and laminated on the plane B (or the plane A).

However, as shown in FIG. 2, the metal foil b is not neatly laminated on the surface of the substrate a. For example, the metal foil b is laminated on the plane A and then on the plane B. When the corner C is exceeded, a bulge d is generated on the plane B side, and the bulge d is actually crushed by the sticking roll and often becomes wrinkled. The reason is that the metal foil b has rigidity and is not bent or curved smoothly when pressure-bonded along the surface of the ridgeline of the corner C.

Due to such swelling d (= wrinkles), the surface of the mold material becomes unsightly and the product price is notably lowered. Corrosion may progress.

The present invention solves the above-mentioned problems of the prior art, and provides a mold material which is free from the swelling of the metal foil in the laminating process and is excellent in sticking quality of the metal foil to the base material, that is, appearance. It was made for the purpose of doing.

[0010]

[Means for solving the problem]

 The present invention relates to a mold material in which a metal foil is laminated on the surface of a rigid base material having corners along the longitudinal direction, and the metal foil is bent and coated along the corners. The corners of the base material are preliminarily rounded, and the roundness is such that the metal foil has a curvature that allows the metal foil to be bent while being in close contact with the surface of the corners. This is the purpose.

That is, in the processing stage of such a mold material, from the viewpoint that it is inevitable to adopt the above-mentioned laminating step, the corners of the base material are rounded in advance. The foil is formed with a bending rate that allows it to be bent while being in close contact with the surface of the corner portion by the pressing force of the sticking roll. The main purpose is to prevent the generation of wrinkles due to the smooth bending of the metal foil at the corners.

[0012]

[Action]

 In the mold material of the present invention, the corners of the base material have rounded corners in advance, and the rounded corners have a curvature that allows the metal foil to be bent while being in close contact with the surface of the corners due to the pressing force. Therefore, in the laminating step, the metal foil is deformed while smoothly following the surface of the corner portion, and there is no room for wrinkling.

[0013]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing an example of the mold material of the present invention, and FIG. 2 is an enlarged cross-sectional view showing a main portion, that is, one of the corner portions. In the case of this embodiment, the same shape as that of the above-mentioned conventional example is used except for the corners.

Reference numeral 1 is a base material, which is made of an Al—Mg—Si (6063 series) alloy obtained by extrusion molding. It is necessary to use a rigid material as the material of the base material 1, and the above alloys are the most preferable materials from the viewpoints of formability into a predetermined shape, corrosion resistance, etc. However, other than aluminum alone, fiber reinforced A synthetic resin or the like can also be used. Further, the thickness of the base material 1 is determined by the material and the use and cannot be generally stated, but is usually about 1.5 to 2.0 mm.

Reference numeral 2 denotes a stainless metal foil laminated on the surface of the base material 1, and a thickness of 100 to 200 μm is generally used including the case of other materials described later. It is preferably 150 μm or less so that the surface shape of the base material, particularly the radius of curvature of the corner C, can be easily deformed. As the metal foil used in the present invention, other materials such as brass and copper that have been conventionally used for this type of mold material can be used.

As the glossiness, it is preferable that the glossiness is usually 800 or more (JIS Z 8741 Gs 45 °) and the surface has a Vickers hardness (Hv) of 180 to 220. If the Vickers hardness exceeds 220, springback will occur when shaping according to the shape of the surface of the base material, and the adhesive strength with the base material will decrease, or the adhesion will become difficult. An adhesive layer (not shown) is formed between the base material 1 and the metal foil 2.

A radius of 1 to 2 mm is formed in the corner C, which corresponds to the rigidity of the metal foil. The dimensional range of this radius is a value when the material of the metal foil is stainless and its thickness is 100 to 200 μm, and varies depending on the material and the type of thickness.

In the mold material of the present invention having the above-mentioned structure, as shown in FIG. 1, no wrinkles are generated on the metal foil 2 at the stage of the laminating process. On the other hand, although not shown, as a comparative example, in the case of the die material laminated and processed in exactly the same manner as in the example except that the corner C of the base material 1 was not provided, as shown in FIG. As a result, swelling d was generated, and wrinkles were generated due to the swelling.

In the present invention, the surface of the metal foil may be subjected to hairline processing or etching processing in order to enhance the decorative effect. When a metal is used as the base material, a synthetic resin layer having a thickness of about 25 to 100 μm may be optionally interposed between the two in order to prevent potential corrosion between the metal foil and the metal foil. You can go to.

In the present invention, as the means for laminating the metal foil on the surface of the base material, a method of pressure bonding using an adhesive or a method of heat pressure bonding is usually mentioned. As the adhesive, a urethane or acrylic adhesive is used.

[0021]

[Effect of device]

 In the mold material of the present invention, the corners of the base material have rounded corners in advance, and the rounded corners have a curvature that allows the metal foil to be bent while being in close contact with the surface of the corners due to the pressing force. Therefore, in the laminating process, the metal foil deforms while smoothly following the surface of the corners, and there is no room for wrinkling.Therefore, it is possible to provide a mold material with excellent wrinkle-free appearance quality. it can.

Even if the material of the base material is the same, various surface decorations can be obtained by variously devising the material of the metal foil, the light brightness, the patterning, etc., and the range of applications can be expanded. It also has the characteristic that this type of mold material has a large size.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view of only a main part showing an embodiment of a mold material of the present invention.

FIG. 2 is an enlarged cross-sectional view of only an essential part showing an example of a conventional mold material.

[Explanation of symbols]

 1 Base material 2 Metal foil A, B Surface of type C C Corner

Claims (1)

[Scope of utility model registration request] 1. A mold material comprising a rigid base material having a corner portion along the longitudinal direction, a metal foil laminated on the surface of the rigid base material, and the metal foil being bent and covered along the corner portion. A mold material characterized in that a corner portion of the base material is preliminarily provided with a radius, and the radius is such that the metal foil can be bent while being in close contact with the surface of the corner portion.