KR102172930B1 - Reinforcement type construction metal panel - Google Patents

Abstract

The present invention relates to a metal panel for construction with a reinforced coupling portion and, more specifically, to a metal panel for construction with a reinforced coupling portion, which provides a metal panel used as an exterior material for construction, reinforces a coupling portion vertically formed by coupling side plates of the metal panel to each other to improve impact resistance, has a rust prevention layer formed by coating a composition for rust prevention coating on a surface exposed to the outside to improve corrosion resistance to form a metal panel for construction by using a relatively inexpensive metal as a material, and increases corrosion resistance to extend service life and increase economic efficiency. The metal panel for construction with a reinforced coupling portion comprises: a main body forming a prescribed area; a plurality of side plates provided on the circumference of the main body, and arranged to be bent through a bending line formed on a connection portion with the main body; a fixing flange provided with a fixing hole to be fixed and coupled to a fixing frame installed on an outer wall of a building and formed on the outer ends of the side plates; a coupling means consisting of a coupling groove and a coupling protrusion formed on each side plate to be meshed and coupled to each other when the side plate is bent to the main body to couple the plurality of side plates to each other; a reinforcing plate extended from both longitudinal ends of the plurality of side plates to the outside, and arranged to be bent to the side plate side; and a rust prevention layer formed by a composition for rust prevention coating coated on exposed surfaces of the sides plates and the main body.

Description

Reinforcement type construction metal panel

The present invention relates to a metal panel for reinforcing a joint part, and more particularly, to provide a metal panel used as an exterior material for a building, but the side plates of the metal panel are combined with each other to reinforce the vertically formed joint to improve impact resistance. An anti-corrosive layer formed by applying a composition for anti-corrosion coating on the surface exposed to the outside is provided to improve corrosion resistance, thereby forming a metal panel for construction using a relatively inexpensive metal material, but increasing the corrosion resistance to extend the service life and economical efficiency. It relates to a reinforced structural metal panel for a raised joint.

The exterior material installed on the exterior wall of a building is the most important factor among the factors that determine the impression of the building, and also plays a role in protecting the exterior wall.

Materials used for such exterior materials include exterior insulation systems, masonry finishes, stone, metal and glass, in addition to the case where a concrete sphere is painted with paint.

The external insulation system is mainly used for small-scale buildings because it can fundamentally block the'heat bridge phenomenon (a phenomenon in which heat or cold air quickly escapes from a certain point of the building)' according to the installation method of the insulation material, and the insulation material is attached to the outside of the structure. After that, it is finished flat and a designated color finish is applied.

This external insulation system has the advantage of excellent insulation performance and relatively low price, but it is difficult to construct because there are many cases of using'EPS insulation' which is weak against fire. In other words, it cannot be used in a building with 6 stories or more than 22M, and there is a disadvantage that it can be used only when an insulating material of semi-incombustible or higher is used or an interlayer fire diffusion prevention structure is applied.

The masonry finishing material is a stack of bricks or cement blocks, and the main bearing walls are often constructed masonry, but since they are susceptible to earthquakes, the case of being applied only as a finishing material in recent years is increasing.

In the case of masonry finishing materials, it has the advantage of giving a variety of effects to the building because it can give different feelings depending on the color, but the disadvantage is that there is a whitening phenomenon in which lime from cement mortar seeps out to the surface, and in the past, through low labor costs. Inexpensive construction was possible, but in recent years, there is a disadvantage that the overall construction cost increases due to an increase in construction labor costs.

The stone is sturdy, does not deform, and does not burn, making it a suitable material for exterior materials of buildings. Stone can be classified according to the material, but in Korea, granite is mainly used.

These stones can be classified into water grind, burner roasting, fine trimming, etc., depending on the method of processing the surface, and have the advantage of being able to express various expressions such as mixing two or more types of processing or adding joints, while the disadvantages include processing, transportation, The cost of construction is relatively expensive compared to other materials.

Next, metal is a material that is often used in large-scale buildings rather than small-scale buildings because construction is quick and unit price is high.Materials coated with a coating film to prevent oxidation on aluminum, steel, or alloy are used, and copper or zinc materials are mainly used as roofing materials. Used.

Compared to other materials, these metals have the advantage of being lighter in weight, quicker construction, easy implementation of a modern feel, and being able to apply a variety of colors, but their disadvantages are high material cost and corrosion of bending, welding, and damaged parts depending on the type of material. There are downsides that can be.

Lastly, glass is mainly used in recent years, and glass curtain walls constitute a high-rise office building and have a major effect in realizing the image of a building in a modern way.

Such glass has the advantage of blocking outside air while light is transmitted, and because it is difficult to finish the front of the building with a glass control wall to save energy, a window frame is added to it.This method has the disadvantage of increasing the construction cost. However, you can take advantage of the glass that transmits light.

Looking in more detail at the building metal panel made of metal among the above-described exterior materials, conventionally, in order to manufacture the metal panel, the metal panel was manufactured in the form of bending and welding after cutting the corners of the rectangular panel. There is a problem in that the metal is deformed in, and there is a problem in that the welding part is oxidized by moisture or the like in an environment where the welding part is exposed to the outside for a long time.

In addition, there is a panel manufactured by forming a non-bent portion at the corner in order to firmly form the corner portion of the rectangular panel, but there is a problem that it is difficult to form integrally with the flange portion for coupling to the outer wall of the building.

That is, in the conventional metal panel, there is a problem in that a gap is generated in the corner and leakage occurs or a crack is generated due to the expansion of the gap.

As a prior art proposed to solve the above problems, there is Korean Patent Registration No. 10-0889580. The prior art includes a top plate portion and a plurality of side portions formed with the same length as the top plate portion, and a plurality of side portions formed at both ends of the plurality of side portions. The plurality of grooves formed on the plurality of side surfaces consist of a groove of the plurality of side surfaces and a plurality of grooves formed on the plurality of side surfaces are combined to engage each other in a roll-zipping method to form a vertically formed edge, but cracks and leaks through the corners This is to prevent occurrence.

Here, in the prior art, since the stiffness of the edge is formed according to the thickness of the side portion, there is a problem in that it is not possible to implement strength higher than the material of the metal used.

That is, the metal has a property of elongating or contracting depending on the external temperature, but there is a problem such as leakage or oxidation due to leakage due to cracks or breakages at the corners during elongation or contraction.

Korean Patent Registration No. 10-0889580

The present invention has been proposed in order to solve the above problems, and provides a metal panel for construction, but prevents loosening of the bonded portion even when contraction or elongation due to external temperature by reinforcing the bonded portion, and at the same time, another portion formed by one body The rigidity is improved by reinforcing the relatively weak bonding portion through the reinforcing plate, but the reinforcing plate is formed extending in the longitudinal direction at both ends of the side plate and then bent toward the side plate to reinforce the bonding portion. An object of the present invention is to provide a metal panel for reinforcing a joint part reinforcing the joint part without increasing the time required for the panel manufacturing process.

In addition, an anti-corrosive layer formed by a composition for anti-corrosive coating is provided on the surface exposed to the outside, and it is formed from a relatively inexpensive metal material to increase price competitiveness and improve corrosion resistance to extend the service life of the metal panel. It is an object to provide a partial reinforced architectural metal panel.

The present invention to achieve the above object, the main body forming a predetermined area;

A plurality of side plates disposed around the main body and arranged to be bent through a bending line formed at a connection portion with the main body;

A fixing flange formed on an outer end of the side plate and having a fixing hole for fixing and coupling to a fixing frame installed on an outer wall of a building;

A coupling means comprising a coupling groove and a coupling protrusion formed on each side plate so as to couple the plurality of side plates to each other so as to engage each other when the side plate is bent into a main body;

Reinforcing plates extending outwardly at both ends of the plurality of side plates in the longitudinal direction and arranged to be bent toward the side plates; And

It includes; a rust prevention layer formed by the rust prevention coating composition applied to the exposed surface of the main body and the side plate.

In addition, the reinforcing plate is bent toward the side plate through a reinforcing plate bending line formed at the longitudinal end of the side plate, and a fastening means for mutually coupling a pair of reinforcing plates in contact with each other among a plurality of reinforcing plates is provided. , The fastening means is characterized in that it comprises a fastening groove formed in any one of the reinforcing plates abutting each other, and a fastening protrusion formed in the other reinforcing plate and coupled to the fastening groove.

In this case, the reinforcing plate is characterized in that a support surface for increasing an area contacting the main body after being bent on the side plate is formed.

In addition, the reinforcing plate is bent toward the side plate at the longitudinal end of the side plate, and the angle at which the side plate is bent is either 90° or 180°.

In addition, the anti-corrosive coating composition for forming the anti-corrosive layer, based on 100 parts by weight of a water-soluble acrylic resin, 50 to 60 parts by weight of a titanium chelate compound, 50 to 60 parts by weight of an oxo zirconium compound, 30 to 40 parts by weight of a silane coupling agent, and It includes 100 to 200 parts by weight of a solvent, and the titanium chelate compound is titanium 2,2 (bis-2-propenoleatomethyl) butanoleato tris (3-amino) phenylato or titanium 2,2 (bis-2-pro Penoleatomethyl) butanoleato tris (2-ethylenediamino) ethylrato, the oxo zirconium compound is zirconyl perchlorate, zirconyl oxalate hydrate, oxozirconium acetic acid ) Characterized in that any one of.

The present invention made as described above is installed on the outer wall of a building to protect the outer wall and express the impression of the building in various ways, and in particular, external force, external stress, and external force by reinforcing the joint portion where a pair of side plates are mutually coupled through a reinforcing plate It has the effect of improving stability by preventing damage or cracking of the bonding site even during contraction and elongation according to temperature.

An anti-corrosive layer formed by applying a composition for anti-corrosion coating on the surface exposed to the outside is provided to improve corrosion resistance, thereby forming a metal panel for construction using a relatively inexpensive metal material, but increasing the corrosion resistance to extend the service life and economical efficiency. There is an increased effect.

1 is an exploded view showing a state in which a metal panel for reinforcing a joint part is expanded according to the present invention.
Figure 2 is an exemplary view showing a state in which the metal panel for reinforcement type construction of a joint portion according to the present invention is bent.
Figure 3 is an enlarged view showing an enlarged reinforcing plate constituting the present invention.
Figure 4 is an enlarged view showing a state in which the reinforcing plate constituting the present invention is bent.
Figure 5 is an exemplary view showing another embodiment of the reinforcing plate constituting the present invention.
6 is an exemplary view showing a bent state of the reinforcing plate according to the embodiment of FIG. 5.
Figure 7 is an exemplary view showing another embodiment of the present invention.

Hereinafter, other objects and features of the present invention in addition to the above objects will be clearly revealed through the description of the embodiments with reference to the accompanying drawings.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the bonding portion reinforcement type construction metal panel according to the present invention.

First, the bonding portion reinforcing metal panel 1 according to the present invention includes a main body 10, a plurality of side plates 20 formed around the main body 10, and the side plate 20 A fixing flange 30 formed in and having a fixing hole 31 for fixing to a fixing frame previously formed on the outer wall of a building, and a pair of side plates 20 with the edges abutting among a plurality of side plates 20 And a pair of reinforcing plates 50 extending outwardly formed at both ends of the side plate 20 in the longitudinal direction and bendable toward the side plate 20 and And a rust prevention layer 60 formed on a surface exposed to the outside from the main body 10 and the side plate 20.

The main body 10 is generally made in the form of a flat plate, and may be made of a rectangular plate as shown in the drawing, but this is an example and may be formed in a hexagonal, octagonal, or rectangular shape extending in the longitudinal direction. .

Subsequently, the side plate 20 is formed to be bent by a bending line 11 around the main body 10, and is formed to have the same length as the circumference of the main body 10, and the main body 10 It is bent at right angles to form a side wall.

At this time, the side plate 20 is for integrally coupled with the other side plate 20 adjacent to each side plate 20 is formed individually around the main body 10, as shown in the figure A coupling means 40 is provided.

And at both ends of the side plate 20 in the longitudinal direction, each inclined surface 21 cut diagonally in consideration of the pushing phenomenon of the metal when processing the adjacent pair of side plates 20 by roll zipping processing. Is formed.

As long as the side plate 20 is bent at a right angle to the main body 10 by the bending line 11, the inclined surface 21 is in contact with the forming roller during roll zipping processing in which metal is processed using a forming roller. When processing the pair of side plates 20, one of the forming rollers abuts against the inclined surface 21 to limit the positional movement, and the other forming roller presses the side surface of the side plate 20. At this time, since the inclined surface 21 is cut in a diagonal line, the position movement by the forming rollers in contact with each other is limited, but the transmitted pressure is minimized to prevent the edge formed by engaging the side plate from protruding to the outside.

When the inclined surface 21 is not formed, that is, when the side plate 20 is formed to have the same width in the longitudinal direction, it is applied to a pair of side plates 20 when forming an edge by a roll zipping process. The corner formed by the pressure may protrude outward, and at this time, if any one of the forming rollers is abutted to the longitudinal end of the side plate 20 to prevent protrusion, there is a problem that the forming roller is protruded in the direction not disposed. There is.

The fixing flange 30 has a fixing hole 31 that is coupled to a fixing frame (not shown in the drawing) previously formed on the outer wall of the building at the outer end of the side plate 20 through fixing bolts or anchors. It is provided to be bent in the side plate 20, protruding from the outer end of the side plate 20 as shown in the drawing, but extending along the length direction of the side plate 20, and a plurality of fixing holes ( 31) are formed at intervals from each other.

At this time, the length and width of the fixing flange 30, the number of fixing holes 31, and the distance between them are limited to the shape and number shown as being formed in consideration of the combination with the fixing frame previously formed on the outer wall of the building. Of course not.

The coupling means 40 is for integrally coupling an adjacent pair of side plates 20 to each other, and are formed at both ends of the side plate 20 in the longitudinal direction, respectively, and coupling grooves formed by mutually alternating (交互) 41) and the coupling protrusion 42.

The coupling protrusion 42 formed on any one of the adjacent pair of side plates 20 is fitted into the coupling groove 41 formed on the other side plate 20, and the pair of side plates 20 is the coupling groove In a state in which the 41 and the engaging protrusion 42 are engaged and engaged, they are firmly coupled by pressing them through a forming roller.

The coupling process and effect by the coupling means 40 are known in Korean Patent Registration No. 10-0889580, and detailed descriptions will be omitted.

On the other hand, in the present invention, there is further provided a reinforcing plate 50 for reinforcing a coupling portion, that is, a corner portion, in which an adjacent pair of side plates 20 are integrally coupled by the coupling means 40, the reinforcing plate ( 50 is formed extending along the outer side (length direction of the side plate) at both ends of the side plate 20 in the length direction, and is arranged to be bent through the reinforcing plate bending line 51 on the side plate 20.

Here, the coupling means 40 is formed between the reinforcing plate 50 and the side plate 20, and after the reinforcing plate 50 is bent toward the side plate 20 by the reinforcing plate bending line 51 The coupling means 40 are exposed so that they can engage with other adjacent coupling means.

That is, since the reinforcing plate 50 in FIG. 1 is not bent toward the side plate 20, the coupling groove 41 and the coupling protrusion 42 forming the coupling means 40 are also not exposed to the outside. 3, the reinforcing plate 50 is bent toward the side plate 20, and the coupling groove 41 and the coupling protrusion 42 are exposed so that they can engage with other adjacent coupling means. It is in a state of being.

The reinforcing plate 50 made as described above is first bent toward the side plate 20 before bending the side plate 20 toward the main body 10, and this will be described with reference to FIG. 1.

First, the reinforcing plate 50 formed on the pair of side plates 20 arranged vertically in FIG. 1 is bent toward the side plates 20 arranged vertically, and thereafter, a pair of side plates 20 arranged horizontally. The reinforcing plate 50 formed in) is bent toward the side plate 20 disposed horizontally.

Here, in order to fix the state in which the reinforcing plate 50 and the side plate 20 are in contact, both plates may be riveted to be integrally combined.

Through this, the coupling means 40 formed between the side plate 20 and the reinforcing plate 50 are exposed so as to be mutually engaged with other adjacent coupling means 40, and then, the plurality of side plates 20 are simultaneously The coupling means 40 formed on a pair of side plates 20 adjacent to each other by bending toward the main body 10 are engaged with each other.

Thereafter, the coupling means coupled to each other through a forming roller are pressed to be firmly engaged, and the fixing flange 30 is bent at a right angle with respect to the side plate 20 to complete the final architectural metal panel.

In the molding process proceeding as described above, the reinforcing plate 50 is disposed at the coupling portion where the pair of side plates 20 are mutually coupled while the reinforcing plate 50 is bent toward the side plate 20 to reinforce the strength of the coupling portion. There is.

Here, the bending angle of the reinforcing plate 50 is made of either 90° or 180°, and when bent at 90°, it is disposed diagonally from the edge of the coupling portion toward the center of the main body, and the coupling portion and the main body connected thereto Supports a part of (see FIGS. 5 and 6), and when bent at 180°, one side of the reinforcing plate 50 is bent so as to contact the side plate 20, and the coupling portion and a part of the side plate connected thereto Is to support. (See Figs. 3 and 4)

That is, the bending angle of the reinforcing plate 50 can be adjusted to control the portion that is supported together with the coupling portion, wherein one side of the reinforcing plate 50, that is, the side plate 20 is bent toward the main body 10 In one surface in contact with the main body 10 is formed with a support surface 53 for increasing the contact area.

As shown in FIGS. 5 and 6, the support surface 53 is formed in a straight line to increase the contact area in contact with the main body to enable stable support, and impact transmitted from the main body. It is possible to maximize the buffering effect by expanding the area to absorb it.

At this time, in order to prevent damage by pressing the main body in a state in which the support surface 53 is in contact with the main body during engaging processing of the coupling means by a forming roller, the support surface 53 is formed of the side plate 20 It is preferable to be formed to have a relatively narrow width compared to the width.

On the other hand, when bending the reinforcing plate 50 so as to contact the side plate 20 as shown in FIGS. 3 and 4, the one surface on which the support surface 53 is formed is cut diagonally so that another reinforcing plate or main body It is possible to minimize the damage to the main body because it prevents jamming with and does not come into contact with the main body during the engagement of the coupling means by the forming roller.

Subsequently, the reinforcing plate 50 includes a fastening means 52 for mutually coupling a pair of reinforcing plates 50 that abut when the reinforcing plate is bent at 90° to support the coupling portion and the main body connected to the coupling portion. More is provided.

The fastening means 52 is formed in a fastening groove 521 formed in any one of the reinforcing plates 50 among a pair of reinforcing plates 50 that are in contact with each other, and the other reinforcing plate 50 is formed in the fastening groove ( It consists of a fastening protrusion 522 coupled to the 521.

The fastening groove 521 and the fastening protrusion 522 are coupled in a male and female fastening form so that the support surface 53 abuts and supports the main body in a state in which the pair of reinforcing plates 50 are mutually coupled. .

In addition, when the reinforcing plate 50 is bent so as to contact the side plate 20, the angle at which the reinforcing plate 50 is bent can be adjusted according to the thickness of the reinforcing plate and the side plate. However, the reinforcing plate 50 is bent in a range of 180°±3°. ) And the side plate 20 is connected to each other to prevent damage, and the longitudinal end of the reinforcing plate 50 may be further bent so as to contact the side plate 20.

Durability can be improved by supporting the coupling portion of the pair of side plates 20 and the main body or side plate connected to the coupling portion through the reinforcing plate 50 made as described above, and the reinforcing plate 50 It has the advantage of not damaging the appearance because it is not exposed.

On the other hand, after the pair of side plates 20 in contact with each other as described above are closely coupled through the coupling means, an external reinforcing plate 50a is added to the coupling portion to reinforce the coupling portion and prevent moisture from entering. It can be placed (see the enlarged original in Fig. 6).

The outer reinforcing plate (50a) is abutted to the corner portion, which is the bonding portion, and is integrally bonded through welding or rivets, and preferably, aluminum is used among metal materials capable of ensuring strength while having high corrosion resistance. Of course, however, it is not limited thereto.

Subsequently, a vibration-proof pad (P) for seismic reinforcement is disposed in the space formed by the main body (10) and the side plate (20), and the side plate (20) and the reinforcement are in contact with a part of the vibration-proof pad (P). A fixing plate 70 integrally coupled to the plate 50 through welding or rivets is further disposed.

Here, the anti-vibration pad (P) absorbs vibration and noise, and may be made of any one or a combination of two or more of polyurethane, EVA foam rubber, silicone, and foam polyurethane, and in the space formed by the main body and the side plate. Filled or placed.

In addition, the fixing plate 70 covers a part of the vibration-proof pad P as shown in FIG. 7 to limit the movement of the vibration-proof pad and at the same time minimize the inflow of moisture from the outside to the vibration-proof pad. It is preferable to be made of an aluminum alloy with high corrosion resistance, high moisture resistance, high strength, and good flatness maintenance. Here, the aluminum alloy is an aluminum-magnesium alloy of high strength, strong against seawater, and excellent weldability. Of course, it is preferably made of, but is not limited thereto.

In addition, the main body, side plate, and reinforcement plate of the present invention described above are also made of 5000 series aluminum, which is an aluminum-magnesium alloy, to reduce the risk of corrosion due to external moisture, and to extend the service life due to high flatness and high durability. It is preferable that the aluminum-manganese alloy is made of 3000 series aluminum and is not limited to the above-described embodiment.

In the above-described embodiment, the side plate and the reinforcing plate are welded or riveted to increase the effect of seismic reinforcement through the anti-vibration pad and at the same time limit the movement of the position of the anti-vibration pad through the fixing plate, and block the inflow of external moisture into the interior. It is integrally combined to improve the corrosion resistance and the effect of seismic reinforcement can be expected. Furthermore, the flatness can be maintained even when exposed to the outside for a long time due to its high flatness, thereby increasing the service life.

On the other hand, the main body 10 and one surface exposed from the side plate 20 is further provided with a rust prevention layer 60 to prevent corrosion by the external environment, the rust prevention layer 60 is a composition for rust prevention coating. Formed by coating on one side of the main body 10 and the side plate 20, the anti-corrosive coating composition includes 50 to 60 parts by weight of a titanium chelate compound and 50 to 60 parts by weight of an oxo zirconium compound based on 100 parts by weight of a water-soluble acrylic resin. 60 parts by weight, 30 to 40 parts by weight of a silane coupling agent, and 100 to 200 parts by weight of a solvent, and the titanium chelate compound is titanium 2,2 (bis-2-propenoleatomethyl) butanoleato tris (3-amino) Phenylato or titanium 2,2(bis-2-propenoleatomethyl)butanoleato tris(2-ethylenediamino)ethylrato, and the oxo zirconium compound is zirconyl perchlorate, zirconyl oxalate hydrate (zirconyl oxalate hydrate), it is characterized in that any one of oxozirconium acetic acid (oxozirconium acetic acid).

The water-soluble acrylic resin is a base resin for forming a coating film, and it is preferable to use a water-soluble acrylic copolymer emulsion having a number average molecular weight of 20,000 to 40,000 and a glass transition temperature of 30 to 60°C, but is not limited thereto.

The silane coupling agent is a component that is always added to the resin in order to improve adhesion to the surface of the metal and to improve rust prevention performance, and is commonly used 3-Glycidoxypropyl trimethoxysilane, Any one of vinyltriethoxysilane and 3-aminopropyl trimethoxysilane may be used.

In the present invention, titanium and zirconium components are added to form a rust-preventing coating film so as to improve anti-rust performance while simultaneously expressing anti-fouling performance. To this end, a titanium chelate compound and an oxozirconium compound are added.

The titanium chelate compound is a type of titanium alkoxide that can be hydrolyzed to form titanium dioxide particles. In particular, when a compound having a large molecular size is used, a gas-tight coating film is formed when the rust-preventing coating is formed by hydrolysis after the painting process. It turned out to be possible. Such titanium chelate compounds include titanium 2,2 (bis-2-propenoleatomethyl) butanoleato tris (3-amino) phenylato, titanium 2,2 (bis-2-propenoleato methyl) butanoleato tris. (2-Ethylenediamino)ethylato, titanium diisopropoxide bis (triethanolamine, titanium dibutoxide bis (ethoxyethoacetyl), titanium diisobutoxide bis (ethoxyacetoacetyl), titanium diiso Any one of propoxide bis (ethoxyacetoacetyl) and titanium ethoxy isopropoxy bis (2,4-pentanedionate) can be used.

In particular, titanium 2,2 (bis-2-propenoleatomethyl) butanolato tris (3-amino) phenylato or titanium 2,2 (bis-2-propenoleato methyl) butanoleato tris (2-ethylene The use of diamino)ethylate has been shown to be advantageous in terms of antirust and antifouling effects.The titanium chelate compound is hydrolyzed by amino groups such as 3-aminophenylato group or 2-ethylenediaminoethylato group as shown in Formulas 1 and 2. It was found that not only formed a three-dimensional network structure of titanium and zirconium atoms, but also excellent compatibility with water-soluble acrylic resins. In addition, titanium diisopropoxide bis (triethanolamine, titanium dibutoxide bis (ethoxyethoacetyl), titanium diisobutoxide bis (ethoxyacetoacetyl), titanium diisopropoxide bis (ethoxyaceto) Acetyl), titanium ethoxy isopropoxy bis (2,4-pentanedionate), etc., are also compounds with relatively large functional groups, and were found to exhibit the characteristics of forming a uniform three-dimensional network structure when combined with zirconium compounds. .

In addition, as the oxozirconium compound, any one of zirconyl perchlorate, zirconyl oxalate hydrate, or oxozirconium acetic acid may be used. Since the oxozirconium compound has a high tendency to ionize in a solvent, it has been shown that when it is mixed with a titanium chelate compound having a large molecular size, it can form a network structure to improve the strength of the coating film and improve rust prevention performance.

In addition, as the solvent, an alcohol capable of dissolving a titanium chelate compound or an oxozirconium compound, or a mixed solvent of alcohol and water may be used. Ethanol or isopropanol may be used as the alcohol solvent. When used as a mixed solvent, it is preferable to mix alcohol and water in a weight ratio of 1:1 to 1:5.

In addition, 1 to 5 parts by weight of a surfactant (e.g., aliphatic phosphate ester), polyethylene paraffin wax, polysiloxane-based surface modifier, and polyoxyethylene sorbitan monooleate-based stabilizer, respectively, as required It may contain additionally.

The rust prevention layer will be described in more detail through the following examples.

Based on 100 parts by weight of a water-soluble polyurethane resin (PU-300, DPI), titanium 2,2 (bis-2-propenoleatomethyl) butanoleato tris (3-amino) phenylato (Nanjin Capatue Chem) 55 By weight, zirconyl oxalate hydrate (Nanjin Capatue Chem) 55 parts by weight, 3-glycidoxypropyl trimethoxysilane 30 parts by weight, and 150 parts by weight of a mixed solvent in which isopropanol and water are 1:3 are mixed A composition for anti-rust coating was prepared (Example 1).

A composition for anti-corrosive coating was prepared in the same manner as in Example 1, but as a titanium compound, titanium 2,2 (bis-2-propenoleatomethyl) butanoleato tris (2-ethylenediamino) ethylate, and zirconium as a zirconium compound A composition for anti-rust coating was prepared using perchlorate (Example 2).

Based on 100 parts by weight of a water-soluble polyurethane resin (PU-300, DPI), 55 parts by weight of titanium isopropoxide, 55 parts by weight of zirconium isopropoxide, 30 parts by weight of 3-glycidoxypropyl trimethoxysilane, And 150 parts by weight of a mixed solvent in which isopropanol and water were mixed in a ratio of 1:4 were mixed to prepare a composition for antirust coating (Comparative Example 1).

A composition for anti-corrosive coating was prepared in the same manner as in Example 1, except for zirconyl oxalate hydrate, to prepare a composition for anti-corrosive coating (Comparative Example 2).

A composition for anti-rust coating was prepared in the same manner as in Example 1, but without using titanium and zirconium compounds, and based on 100 parts by weight of a water-soluble polyurethane resin (PU-300, DPI), 3-glycidoxypropyl trimethoxysilane 100 parts by weight, and 150 parts by weight of a mixed solvent in which isopropanol and water were mixed in a ratio of 1:3 were mixed to prepare a composition for anti-rust coating (Comparative Example 3).

After spray-spraying the rust-preventing coating composition according to Examples 1 and 2 and Comparative Examples 1 and 2 on the main body and side plate from which surface impurities have been removed, the coating process was performed so that the thickness of the dry film became 25±2 μm. Heat treatment was performed at 180° C. for 30 minutes to form an anti-rust coating.

With respect to the steel plate (specimen) on which the rust-prevention coating was formed, the adhesion, rust prevention, spray workability, and chemical resistance of the coating were evaluated.

Adhesion was evaluated by a B-cross cut tape test according to ASTM D 3359. When there is no peeling of the coating film, it is set to A, in the case of 10% or more peeling, B, for 20% or more peeling, C, for 30% or more peeling, D, for 50% or more peeling, E and 65% or more The case in the peeling state was evaluated as F.

The rust resistance was evaluated by the salt spray test according to KS D 9502. The same specimen was sprayed with 5% salt water at 35°C for 120 hours for 120 hours, and if there were no wrinkles, swelling, cracks, or rust in both of the two specimens, A, the abnormality in one of the two specimens When it occurred, it was evaluated as B, and if all abnormalities were found, it was evaluated as C.

Spray workability was evaluated according to test method 2412 of KSM 5000. Place the steel plate almost vertically and investigate running and fogging, and after drying, dusting, spots, color stains, air bubbles, wrinkles, pin-holes, cratering (crater shape) , Blushing, etc., were evaluated as A for very good cases, B for excellent cases, C for normal cases, and D for bad cases.

For chemical resistance, after immersing the edge of the specimen in a paraffin melt to form a first paraffin layer so that the edge portion of the specimen 3 mm overlaps, it is immersed in the paraffin melt to form a second paraffin layer so that the edge portion overlaps 5 mm. It was left for 1 hour. The specimens on which the first and second paraffin layers were formed were immersed in 0.5% sulfuric acid solution for 24 hours, and then taken out to observe the coated surface. It was evaluated as A if there was no cracking, peeling, swelling or rust, B if an abnormality occurred in an area less than 20%, and C if an abnormality was observed in an area of 65% or more. The results are shown in Table 1.

Evaluation item Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Adhesion A A A B B Anti-rust A A C B C Spray paintability A A A B B Chemical resistance A A B B B

Referring to the results of Table 1, in the case of Examples 1 and 2, it was found that it was possible to prepare a rust-preventing coating film excellent in adhesion, rust prevention, spray coating, and chemical resistance. On the other hand, in Comparative Example 1, when a conventional alkoxide compound was applied as a titanium compound and a zirconium compound, a result of insufficient rust prevention and chemical resistance was obtained. It was considered that when the titanium alkoxide and zirconium alkoxide were simultaneously contained, non-uniform mixing occurred, and thus the physical properties of the coating film were deteriorated. In addition, in Comparative Example 2, when the zirconium compound was not contained, adhesion, rust prevention, spray coating, and chemical resistance were all deteriorated.Since the molecular size of the titanium compound is too large, simple mixing rather than the physical properties of the coating film It decreases and shows a synergistic effect when the zirconium compound is mixed, suggesting a tendency to increase the physical properties of the coating film. In addition, even in Comparative Example 3 using only the silane coupling agent, adhesion, rust prevention, paintability, and chemical resistance were all insufficient, and it was confirmed that the properties of the rust prevention coating film were improved by containing a titanium compound and a zirconium compound.

By applying the rust-preventing coating composition as described above to the exposed side of the main body and the side plate to form the rust-preventing layer 60, it increases resistance to corrosion and contamination to the external environment, prolongs the service life, and increases the waterproof effect. There is an advantage that can be increased.

As described above, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but this is provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , If a person of ordinary skill in the field to which the present invention belongs, various modifications and variations are possible from these descriptions.

Therefore, the spirit of the present invention is limited to the described embodiments and should not be defined, and all things equivalent or equivalent to the claims as well as the claims to be described later belong to the scope of the spirit of the present invention. .

1: Metal panel for reinforcement of the joint part
10: main body
11: bending line
20: side plate
21: slope
30: fixing flange
31: fixed hole
40: coupling means
41: coupling groove 42: coupling protrusion
50: reinforcement plate
51: reinforcement plate bending line 52: fastening means
53: support surface
521: fastening groove 522: fastening protrusion
60: anti-rust layer
70: fixed plate

Claims (5)

A main body 10 forming a predetermined area;
A plurality of side plates 20 disposed around the main body 10 and arranged to be bent through a bend line 11 formed at a connection portion with the main body 10;
A fixing flange 30 formed at an outer end of the side plate 20 and having a fixing hole 31 fixedly coupled to the fixing frame installed on the outer wall of the building;
Consisting of a coupling groove 41 and a coupling protrusion 42 that are formed on each side plate 20 so as to couple the plurality of side plates 20 to each other, and when the side plate is bent to the main body 10, Coupling means 40;
Reinforcing plates 50 formed extending outwardly at both ends of the plurality of side plates 20 in the longitudinal direction and arranged to be bent toward the side plates 20; And
Including; a rust prevention layer 60 formed by a rust prevention coating composition applied to the exposed surfaces of the main body 10 and the side plate 20,
The anti-corrosive coating composition for forming the anti-corrosive layer 60 includes 50 to 60 parts by weight of a titanium chelate compound, 50 to 60 parts by weight of an oxo zirconium compound, and 30 to 40 parts by weight of a silane coupling agent based on 100 parts by weight of a water-soluble acrylic resin. And 100 to 200 parts by weight of a solvent,
The titanium chelate compound is titanium 2,2 (bis-2-propenoleatomethyl) butanoleato tris (3-amino) phenyl lato or titanium 2,2 (bis-2-propenoleato methyl) butanoleato tris ( 2-ethylenediamino)ethylrato,
The oxo zirconium compound is any one of zirconyl perchlorate, zirconyl oxalate hydrate, and oxozirconium acetic acid.
The method according to claim 1, wherein the reinforcing plate 50,
It is bent toward the side plate 20 through the reinforcing plate bending line 51 formed at the longitudinal end of the side plate 20,
Fastening means 52 for mutually coupling a pair of reinforcing plates 50 in contact with each other among the plurality of reinforcing plates 50 are provided,
The fastening means 52 is formed in a fastening groove 521 formed in any one of the reinforcing plates 50 among a pair of reinforcing plates 50 that are in contact with each other, and the other reinforcing plate 50 is formed in the fastening groove ( A metal panel for reinforcing joints, characterized in that it comprises a fastening protrusion 522 that is coupled to 521).
The method according to claim 2, wherein the reinforcing plate 50,
After bending the side plate (20), a support surface (53) for increasing an area in contact with the main body (10) is formed.
The method according to any one of claims 1 to 3, wherein the reinforcing plate 50,
Doedoe bent toward the side plate 20 side at the longitudinal end of the side plate 20, the bonding portion reinforcement type construction metal panel, characterized in that the bent angle is either 90° or 180°.
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