KR102086818B1 - Removing method for contaminants form steel and nonferrous metal and surface protective construction method to weather-resistant hardening of steel and nonferrous metal using eco-friendly soda-blasting pre-treatment equipment - Google Patents

Abstract

The present invention relates to a surface protection construction method for removing a dry paint film of steel and non-iron metal and applying heavy-duty paint having enhanced weather resistance using an eco-friendly soda blasting pretreatment apparatus. The surface protection construction method of the present invention comprises: (a) a pretreating step of removing a dry paint film or scale by spraying an abrasive; (b) a step of forming an undercoat by applying an anti-rust primer onto the surface of a subject to be protected; and (c) a step of applying a topcoat onto the surface of the subject to be protected. According to the present invention, a dry paint film or scale formed on steel or non-steel metal can be easily removed.

Description

Removable METHOD FOR CONTAMINANTS FORM STEEL AND NONFERROUS METAL AND SURFACE PROTECTIVE CONSTRUCTION METHOD TO WEATHER-RESISTANT HARDENING OF STEEL AND NONFER METAL USING ECO-FRIENDLY SODA-BLASTING PRE-TREATMENT EQUIPMENT}

The present invention relates to a surface protection construction method for coating a steel and non-ferrous metal coating using an environmentally friendly soda blasting pretreatment apparatus and applying a weatherproof reinforcing heavy anticorrosive coating, and more specifically, is formed in steel or non-ferrous metal using a soda blasting apparatus Easily remove the coating or scale, apply anti-rust primer to the protective object from which the coating or scale is removed, and apply a new coating film consisting of medium and top to the protective object to which the anti-rust primer is applied The present invention relates to a surface protection construction method for coating steel strips and nonferrous metals using an environmentally friendly soda blasting pretreatment that can be strengthened, and applying a weatherproof reinforced heavy-duty coating.

In general, civil structures or building structures, especially steel made of steel structure not only decreases the strength after construction, such as salt and water penetration, but also decreases durability over time, thereby reducing the service life. In particular, when built on the beach, salt is often infiltrated, and when built in a factory wastewater or sewage area, it is penetrated by various chemicals and causes severe durability degradation.

In order to reduce the durability degradation of such civil or building structures, it is common to paint the surface of the structure with a coating (paint).

On the other hand, the conventional coating agent (paint) has been used by mixing a filler in an acrylic resin-based polymer, there was a surface inadequate in terms of physical properties such as adhesion strength, durability, compressive strength to the base material.

On the other hand, Korean Patent Laid-Open Publication No. 2008-0094427 uses blast furnace slag having high affinity for iron and cement as a filler to improve adhesion to the conductor and to increase flexibility by adding a soft resin to separate the surface of the conductor. It has been proposed a technology to increase the vibration resistance and to increase the adhesion to the object by lowering the curing rate by using alkali metal hydroxide as a curing agent.

In addition, the Republic of Korea Patent No. 10-0937632 has a high resistance to fouling by adding a fluorine-based surfactant excellent in antistatic properties and dust adhesion to the surface of the coating film in order to solve the conventional paint composition is less resistant to contamination It has proposed a technology for improving chemical resistance and mold resistance.

However, the conventional coating agent (paint) has the advantages of improved durability and chemical resistance, but there is a need to improve in terms of adhesion strength with the conductor, and also lacks properties such as waterproof and salt resistance, so that the surface protection effect of the steel structure is improved. There was not enough side.

In order to solve the above problems, the surface coating protection method of the steel structure has been developed, the coating protection method according to the prior art, the step of cleaning the surface of the structure to be coated using a surface treatment apparatus, and the surface of the structure Applying a primer to the surface of the primer, and applying the primer to the surface of the primer, the primary paint comprising soluble silicate, nitrite ion, lithium ion, metal nanoparticles, water repellent, corrosion inhibitor, and water Applying an aqueous epoxy secondary paint comprising an epoxy main material, an amine curing agent and water to the surface to which the primary paint is applied; and a water-dispersible acrylic urethane resin on the surface to which the secondary paint is applied. And applying a tertiary paint comprising an unsaturated polyester, a metal cation, a dispersant and water.

Background art of the present invention is disclosed in Republic of Korea Patent Publication No. 10-1963090 (announced March 27, 2019, the name of the invention: coating composition for surface protection of steel structure surface protective coating method of the steel structure using the same).

In the protective coating method according to the prior art, since the existing coating film applied to the protection target and the separate process for removing scale accumulated on the surface are not provided, the newly constructed coating film is not easily adhered to the protection target, Since the coating film can be easily lost after the coating composition coating film is formed, there is a problem that the weather resistance improvement of the protective object is not effectively achieved.

Therefore, there is a need for improvement.

The present invention easily removes the coating film or scale formed on steel or non-ferrous metal, etc. using a soda blasting apparatus, to apply a rust preventive primer to the protective object to which the coating film or scale is removed, and to the protected object to which the rust preventive primer is applied The purpose of the present invention is to provide a surface protection construction method for coating steel and nonferrous metals using a eco-friendly soda blasting pretreatment device that can enhance the weather resistance of steel or nonferrous metals by applying a new coating film. There is this.

The present invention comprises: (a) a pretreatment step of removing a coating film or scale remaining on a protective object made of steel or non-ferrous metal by spraying an abrasive containing soda on the surface of the steel or non-ferrous metal product and the structural coating; (b) A rust preventive primer consisting of a main body, a hardener, a mark, and an additive containing a metal oxide, a metal phosphate, and an alkali silicate on the surface of the protected object 3 to 4 hours after the completion of the pretreatment step. Applying to form a undercoat; And (c) applying a top coat comprising a ceramic resin, cellulose butyric acid acetate, and a phase transfer material to the surface of the object to which the rust preventive primer is applied, wherein step (a) includes water or glass beads and soda. A tank body provided with a first inlet, a second inlet, and a discharge hole so that the reaction is accommodated therein; An air injection assembly configured to supply air into the tank main body so that the soda reacts to generate an expansion pressure, and installed at the second inlet; A stopper assembly into which soda, water, or glass beads are inserted and installed in the first inlet so as to seal the tank body; A control member installed in the discharge hole and connected to the outlet assembly to control whether or not the soda mixture discharged from the tank body is discharged; An output pressure control valve manipulated by the adjustment member to adjust the discharge pressure of the soda mixture discharged through the discharge hole; And an air hose provided in the tank body and provided to the output pressure regulating valve, the air injection assembly, and the outlet assembly, by the pressure provided through the air hose, the output pressure regulating valve and the air injection assembly. And a control box for controlling the operation of the outlet assembly.

In addition, the metal oxide of the present invention is formed by selecting and mixing any one or two or more selected from zinc oxide (ZnO), aluminum oxide (Al₂O₃), calcium oxide (CaO), magnesium oxide (MgO). It is done.

In addition, the curing agent of the present invention includes an alkali metal oxide (alkali metal oxide) and an alkali silicate, the alkali metal oxide is potassium oxide (K₂O), sodium oxide (Na₂O), lithium oxide (Li₂O), cesium oxide It is formed by selecting any one or two or more selected from the group consisting of (Se₂O) and mixing, the alkali silicate (alkali silicate) is characterized in that having a three-dimensional structure in which alkali metal atoms are sealed inside the tetrahedral structure.

In addition, the top coat of the present invention is characterized in that it comprises 50 to 70% by weight of the ceramic resin, 15 to 25% by weight of cellulose butyrate acetate and 10 to 25% by weight of the phase transfer material.

In addition, the ceramic resin of the present invention is characterized in that the alkoxysilane coupling agent and a transparent resin mixture containing a metal oxide of 10 to 30nm size is hydrolyzed and then cured.

In the surface protection coating method of applying the eco-friendly soda blasting pretreatment apparatus according to the present invention, the coating of steel and nonferrous metals and the application of heavy-duty anticorrosive coating material are sprayed at high pressure with an abrasive formed by mixing water or glass beads with soda. The process of removing the coating film or scale remaining on the object to be protected by using a blasting device is carried out to cleanly remove the coating film and scale remaining on the object to be protected within a short time, thereby facilitating the construction of a new coating film. There is an advantage that can reduce the time required for the ongoing surface treatment process to shorten the air, significantly reducing the construction cost.

In addition, the surface protection coating method for applying the environmentally friendly soda blasting pretreatment apparatus according to the present invention to remove the steel film and non-ferrous metal coating and weather-resistant reinforced anti-corrosive coating, since the reactor is provided in the organoalkoxysilane included in the intermediate and top coat Reactors contained in the organoalkoxysilane (that is, a Si-bonded reactor) react with the reactive synthetic resin to form a hybrid reactant, and since the hybrid reactants have extra silanol groups, they are condensed with each other in the drying process of the coating film to bond the siloxane. And the curing reaction of the bonded reactive synthetic resins is also progressed to form macromolecules (metal hybrids in which the metal component and the resin component are chemically bonded), and the macromolecule is composed of the organic component, the metal component and the Si component of the synthetic resin. As it is chemically bound, the binding force on the steel to be protected And be excellent in the coating film as the basic physical properties such as water resistance and corrosion resistance, and has the advantage that it provides a coating on the salt tolerance of the protection object.

1 is a perspective view showing an eco-friendly soda blasting pretreatment apparatus used in the surface protection construction method for applying the coating of steel and non-ferrous metals and weather resistance reinforced heavy coating using an eco-friendly soda blasting pretreatment apparatus according to an embodiment of the present invention. .
Figure 2 is an exploded perspective view showing the output pressure control valve and the air injection assembly installation structure of the eco-friendly soda blasting pretreatment apparatus according to an embodiment of the present invention.
Figure 3 is a perspective view showing the scattering prevention portion of the eco-friendly soda blasting pretreatment apparatus according to an embodiment of the present invention.
Figure 4 is an operating state diagram showing the scattering prevention portion of the eco-friendly sand blasting pretreatment apparatus according to an embodiment of the present invention.
5 is a view showing the detachable portion of the eco-friendly sosa blasting pretreatment apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the surface protection construction method for coating the removal of steel and non-ferrous metal coating of the steel and non-ferrous metal using an environmentally friendly soda blasting pretreatment apparatus according to the present invention.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator.

Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view showing an eco-friendly soda blasting pretreatment apparatus used in the surface protection construction method of applying a steel and non-ferrous metal film removal and weather resistance reinforced heavy-duty coating using an eco-friendly soda blasting pretreatment apparatus according to an embodiment of the present invention 2 is an exploded perspective view illustrating an output pressure control valve and an air injection assembly installation structure of an eco-friendly soda blasting pretreatment apparatus according to an embodiment of the present invention.

In addition, Figure 3 is a perspective view showing the scattering prevention portion of the eco-friendly soda blasting pretreatment apparatus according to an embodiment of the present invention, Figure 4 is an operation showing the scattering prevention portion of the eco-friendly sosa blasting pretreatment apparatus according to an embodiment of the present invention 5 is a diagram illustrating a detachable part of an eco-friendly sosa blasting pretreatment apparatus according to an embodiment of the present invention.

1 to 5, the surface protection construction method of coating the steel and non-ferrous metal film removal and weather resistance reinforcing heavy anticorrosive coating using an environmentally friendly soda blasting pretreatment apparatus according to an embodiment of the present invention, steel or non-ferrous metal products and A pretreatment step of removing a coating film or scale remaining on a protective object made of steel or non-ferrous metal by spraying an abrasive containing soda on the surface of the damaged coating film, and the surface of the protective object 3 to 4 hours after the completion of the pretreatment step. Applying a rust preventive primer comprising a metal oxide, a metal phosphate and an alkali silicate, a hardener, a mark, and an additive to form a coating layer on the surface of the object to which the rust preventive primer is applied; Resins, butyric acid cellulose and phase transfer materials Applying a coating to the coating.

First, when pretreatment is performed due to damage to the coating formed on steel or nonferrous metal structures or products, the pretreatment is performed using dry or wet soda blasting equipment, and the pressure of the tank body is maintained at 5 to 7 kg / ㎠. .

The abrasive stored in the tank body is blasted using half of 40 ~ 60mash soda or 40 ~ 60mash soda and 40 ~ 60mash glass beads, and the reason of using glass beads is that the coating film remaining on the object to be protected is 1000㎛ or more This is to remove severe surface drawings.

In case of wet blasting, only soda can be used, and the weight ratio of soda and water is 10: 6 ~ 8, and when mixed with soda and glass beads to be used as abrasive, 100 parts by weight of glass The beads are used in an amount of 80 to 120 parts by weight, and the weight ratio of the raw material and water is mixed at a ratio of 10: 7 to 9 to be used.

The extension hose connected to the discharge tube assembly is suitable for 15 meters and can be used up to 30 meters in length.

Removing the coating film or the scale of the present embodiment, the tank body 10 is provided with the first inlet 12, the second inlet 16 and the discharge hole 14 so that the soda is accommodated and reacted with water or glass beads. ), Air is supplied into the tank body 10 so that the soda reacts to generate an expansion pressure, and the air injection assembly 80 installed at the second inlet 16 and soda, water, or glass beads are introduced. And a stopper assembly 50 installed in the first inlet 12 to be opened and closed to seal the tank main body 10 and the discharge hole 14, and connected to the outlet assembly 30 to the tank main body 10. The control member 38 for controlling whether or not the discharge of the soda mixture discharged from the; and the output pressure control valve for controlling the discharge pressure of the soda mixture discharged through the discharge hole 14 by the control member 38 ( 70) and the tank body 10, the output pressure control valve 70, the air injection assembly 80 and the outlet The air hoses 78a, 78b, and 78c provided in the assembly 30 are installed, and the output pressure control valve 70, the air injection assembly 80, and the pressure are provided through the air hoses 78a, 78b, and 78c. It is made by a soda blasting device comprising a control box 78 for controlling the operation of the outlet assembly 30.

When the wet blasting process is performed, the stopper assembly 50 including the cover member 52, the cover panel 54, and the operation lever 56 is released to open the first inlet 12, and the first inlet 12. After injecting water through the funnel 58 is inserted into the first inlet 12 to supply soda, while operating the flow lever (38a) in the upward direction while flowing the control member 38, the output pressure control valve ( 70) to set the output pressure.

At this time, since the adjustment member 38 is rotatably supported by the support member 38b, the end of the adjustment member 38 reciprocates in the vertical direction to operate the output pressure regulating valve 70, and the flow lever 38a. The gap adjusting member 38c installed at the) adjusts the interval between the flow lever 38a and the tank main body 10 while coming out of the flow lever 38a by a plurality of nuts to adjust the operating range of the flow lever 38a. Will be adjusted.

The outlet assembly 30 according to the present embodiment includes an outlet pipe 36 inserted into the discharge hole 14 and an outlet assembly 34 installed at an upper end of the discharge pipe 36 to determine whether the discharge hole 14 is opened. ) And a cover member 32 installed to seal the upper end of the outlet assembly body 34.

When the adjusting member 38 is installed at one side of the outlet assembly body 34, and the operator manipulates the adjusting member 38 in the up and down direction, the outlet assembly body 34 is operated to open the discharge hole 14.

The output pressure control valve 70 of the present embodiment is installed on the upper surface of the seating plate 72 and connected to one side of the outlet assembly 30, and the discharge tube assembly 76 is connected to the other surface of the output pressure control valve 70. The output pressure regulating valve 70 is wrapped by the safety cover 74 to finish.

In addition, the output pressure control valve 70 of the present embodiment is installed on one side of the outlet assembly main body 34 to adjust the discharge pressure of the soda mixture through which the outlet assembly body 34 is discharged. The discharge tube assembly 76 through which the soda mixture is discharged is installed at the other side, and the connection member 76a at which the extension tube is installed is provided at the end of the discharge assembly.

The air injection assembly 80 of the present embodiment includes a supply hose 82 which is connected to the second inlet 16 and extends, a unidirectional valve 84 which is provided at the supply hose 82 and regulates the air injection amount, and a supply. It is installed in the hose 82, the manual valve 86 to determine whether the air injection while opening and closing by the operator's operation, and installed in the supply hose 82, the pressure of the air supplied along the supply hose 82 The pressure control valve 87 to adjust, and the pressure gauge 88 is installed in the supply hose 82, and displays the internal pressure of the supply hose 82 is adjusted by the pressure control valve 87.

Therefore, after the operator injects water or glass beads and soda into the tank main body 10, the manual valve 86 is operated to inject air into the tank main body 10, and soda reacts to the inside of the tank main body 10. When the pressure is increased, opening the valve of the extension tube connected to the discharge tube assembly, soda mixture is sprayed from the tank body 10 at a pressure of 5 ~ 7kg / ㎠ to remove the coating film or foreign material applied to the gold or non-metal outer wall It is scattered to remove.

In addition, the tank body of the present embodiment is provided with a release hole 17 for discharging the pressure inside the tank body after the blasting process is finished, the release hole (17) is provided with a release valve 59 to the operator after the end of the blasting process Opening the release valve 59 releases the pressure inside the tank body.

In addition, the tank body of the present embodiment can be supported by the support 18 is installed on one side of the tank body, the wheel member 18a and the lever member 18b is installed on one side of the support 18, the operator is a lever member ( 18b) by holding and pulling the tank body to separate the support 18 from the ground by holding and pulling the tank body, the wheel member 18a can be rotated to easily move the tank body.

In addition, the blasting apparatus of the present embodiment further includes a scattering prevention part 100 which prevents the coating film or foreign matter from the surface treatment object from being diffused into the atmosphere during the blasting process.

Therefore, it is possible to prevent the surrounding environment from being contaminated by preventing the coating film or foreign matter from being separated and scattered from the object during the blasting process to be diffused into the atmosphere.

Shatterproof portion 100 of the present embodiment, the plurality of pieces are connected to surround the site in which the blasting operation is formed by covering the gap between the pillar member 110 and the pillar member 110, the coating film generated by the blasting process And a finishing member 116 for preventing foreign matter from spreading into the atmosphere, an adhesive part 118 for detachably connecting the finishing member 116 to the pillar member 110, and a pillar member penetrating through the finishing member 116. (110) an adsorption tube (150) connected to the inner space and extending outward, and a suction fan (152) connected to the adsorption tube (150) to provide a vacuum pressure to collect the coating film or foreign matter generated by the blasting process; The dust collecting tank 154 collects and stores a coating film or foreign matter sucked from the interior of the finishing member 116 by the vacuum pressure generated by the suction fan 152.

Therefore, connecting the pillar members 110 while protruding the control bars 112 from the plurality of pillar members 110 in the blasting process is carried out to form a structure of a hexahedron, the finishing member ( The 116 is bonded by the adhesive part 118 to surround the site where the blasting process is performed.

The adhesive part 118 of the present embodiment is composed of a first Velcro 118a installed on the pillar member 110 and a second belt installed on the edge of the closure member 116, so that the pillar member 110 and the finishing member ( 116 may be connected or separated, and the adhesive part 118 may be formed of a magnetic material in which the adhesive part 118 is installed on the finishing member 116 when the pillar member 110 is made of a metal material.

Therefore, the finishing member 116 is attached to the pillar member 110 structure that is installed at the site where the blasting process is performed, and the suction tube 152 and the dust collecting tank are connected by connecting the suction tube 150 to penetrate the finishing member 116. When the suction fan 152 is driven in connection with 154, the coating film or the foreign matter scattered in the finishing member 116 may be collected into the dust collecting tank 154 through the suction tube 150.

In addition, the scattering prevention part 100 of the present embodiment further includes a detachable part 170 for detachably connecting the adsorption tube 150 to the pillar member 110, so that the adsorption tube 150 is connected to the pillar member 110. Since it can be easily attached to and detached from, it is possible to facilitate the convenience of the worker.

Adsorption tube 150 of the present embodiment is installed to penetrate the finishing member 116 by the connecting portion 130, the connecting portion 130 of the present embodiment is coupled to the pillar member 110 by a detachable portion 170. It includes a connection panel 132 and a connection hole 134 extending from the connection panel 132 and connected to the adsorption tube 150.

Therefore, when the connection panel 132 is coupled to the pillar member 110 by the detachable part 170, and then the adsorption tube 150 is connected to the connection hole 134, the adsorption tube 150 passes through the finishing member 116. It may be installed so as to be connected to the finishing member 116 through the inner space.

Here, the removable portion 170 of the present embodiment, the hook member 172 protruding from the connection panel 132, the engaging groove 174 is formed in the pillar member 110, the hook member 172 is inserted, The locking hook 176 includes a hook hook 176 protruding from the inner wall of the hook groove 174 to the inside of the hook groove 174, and an elastic member 178 for pressing the hook hook 176 into the hook groove 174.

Accordingly, when the connection panel 132 is pressed toward the pillar member 110, the hooking member is retracted while the elastic member 178 is compressed, and the hooking hook is restrained by the restoring force of the elastic member 178 when insertion of the hook member 172 is completed. 176 protrudes and is engaged with the hook member 172 so that the connection panel 132 is coupled to the pillar member 110.

On the other side of the connection panel 132, a hook is formed to protrude in a 'b' shape, and the other pillar member 110 opposite to the hook is formed with a coupling groove into which the hook is inserted and engaged.

Therefore, when the operator inserts the catch ring into the engaging groove, and then slides the connecting panel 132 toward the catch groove 174, the hook ring and the engaging groove is engaged, and the hook member 172 and the hook hook 176 are fastened and connected. The coupling between the panel 132 and the pillar member 110 is completed firmly.

In addition, the second Velcro 118b is installed in the connection panel 132 of the present embodiment so that the edge of the finishing member 116 may be bonded.

In addition, the scattering prevention part 100 of the present embodiment further includes a release part 180 that separates the connection panel 132 from the pillar member 110, and the release part 180 is formed of the hook hook 176. A wire member 182 extending from the end to the outside of the pillar member 110, a guide roller 184 installed in a passage formed inside the pillar member 110 to change a direction in which the wire member 182 travels; , A release lever 186 installed at an end of the wire member 182 extending outward of the pillar member 110.

Therefore, when the operator pulls the release lever 186 to the outside of the pillar member 110, the hook hook 176 is retracted by the tension of the wire member 182, so that the hook member 172 is released and the engagement member is released. To separate from the pillar member 110, the finishing member 116 is separated from the pillar member 110, and by removing the connection of the pillar member 110 while inserting the control bar 112 into the pillar member (110) inside. Shatterproof unit 100 can be stored separately.

Since the scattering prevention part 100 of the present embodiment is formed by detachably connecting a plurality of pillar members 110, the pillar member may be large when the size of the object to be protected cannot be located inside the scattering prevention part 100. By disassembling the connection portion 110 can be changed to the shape of the curtain covering the outer wall portion of the object to be protected, which can be easily changed by those skilled in the art that recognizes the technical configuration of the present invention specific drawings or according to another embodiment The description will be omitted.

As described above, the soda blasting apparatus is used for pretreatment to the protected object, and then, the antirust primer is applied to the surface of the protected object. The rust preventive primer of the present embodiment comprises a main body, a curing agent, a pigment, and an additive. .

Here, the subject is composed of metal oxide (metal oxide), metal phosphate (metal phosphate), alkali silicate, etc., wherein the metal oxide is zinc oxide (ZnO), aluminum oxide (Al₂O₃), calcium oxide (CaO), magnesium oxide ( MgO) is formed by selecting any one or two or more selected from, and the metal phosphate, either aluminum phosphate or zinc phosphate, or is formed of a mixture thereof.

The curing agent of the present embodiment serves to promote curing of the coating film, and becomes a main constituent material of the coating film, and is made of alkali silicate (R₂O · nSiO ₂ · mH₂O, R is an alkali metal) which is a material forming the coating film.

Here, the alkali silicate has a three-dimensional structure in which alkali metal atoms are sealed inside the tetrahedral structure.

In addition, the curing agent of another embodiment comprises an alkali metal oxide (alkali metal oxide) and an alkali silicate, the alkali metal oxide is potassium oxide (K₂O), sodium oxide (Na₂O), lithium oxide (Li₂O), oxide It is formed by selecting and mixing any one or two selected from the group consisting of cesium (Se₂O).

A coat is formed by the rust preventive primer as described above, and the coat is coated on the top of the coat to provide a coating film for surface protection of steel or nonferrous metal.

The top coat of this embodiment includes 50 to 70 wt% of a ceramic resin, 15 to 25 wt% of cellulose butyrate acetate, and 10 to 25 wt% of a phase transfer material.

Ceramic resin disperses ceramic particles, such as a metal oxide, in transparent resin, and improves the hardness of a surface. As the resin of the ceramic, a dispersion of a transparent resin and ceramic particles commonly used in the art may be used. For example, the mixed resin of an epoxy resin and melamine resin can be used as a transparent resin, and the thing which improved the adhesive force using the silane coupling agent can be used here. Alternatively, an organoalkoxysilane having an organic functional group such as an acryl group capable of polymerization may be used as the transparent resin. In one specific embodiment of the present invention, a cured and hydrocured transparent resin mixture containing an alkoxysilane coupling agent and a metal oxide having a size of 10 to 30 nm is used as a ceramic resin.

The ceramic resin of the present embodiment may include a silanol group, wherein the silanol group is formed by hydrolysis of an alkoxysilyl group of an organoalkoxysilane having a reactor with water, and the silanol group is condensed with an inorganic surface to form Si. Form a reactant with a -OM (where M is a metal element originating from inorganic) bond;

On the other hand, reactors contained in the organoalkoxysilane (ie, Si-bonded reactors) react with the reactive synthetic resin to form a hybrid reactant, and the hybrid reactants have excess silanol groups, and thus degenerate to each other during the drying of the coating film. In combination, siloxane bonds can be formed, and the curing reaction of the bonded reactive synthetic resins is also progressed to form macromolecules (metal hybrids in which a metal component and a resin component are chemically bonded).

Since the macromolecule formed as described above is chemically bonded to the organic component, the metal component and the Si component of the synthetic resin, the binding ability to the steel to be protected is superior to the conventional coating component composed only of the synthetic resin component, and the coating film such as waterproof or anticorrosive. It is excellent in basic physical properties and provides flame resistance on the surface of a protected object.

Moreover, as a reactor contained in the organoalkoxysilane of a present Example, (meth) acryl groups, such as a methacryloxy group, an acryloxy group, 3- (methacryloxy) propyl group, 3- (acryloxy) propyl group, As long as it can react with the reactive synthetic resin normally used for forming a coating film, such as a vinyl group, an epoxy group, an amino group, it is possible.

More specifically, 3- (methacryloxy) propyltrimethoxysilane, 3- (methacryloxy) propyltriethoxysilane, 3- (methacryloxy) propylmethyldimethoxysilane, 3- (acryloxy) propyl Trimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, methylvinyldimethoxysilane, allyltriethoxysilane and the like.

In addition, examples of the reactive synthetic resin reacting with the reactor contained in the organoalkoxysilane include epoxy resins, urethane resins, acrylic resins, and the like, which are used as organic coating materials for steel structures, and are inorganic substances that react with organoalkoxysilanes. And metal oxides, metal nitrides, metal hydroxides, metal silicates and the like.

Examples of the metal oxides include titanium oxides, zinc oxides, cobalt oxides, chromium oxides, ferrites, ferrous oxides, ferric oxides, and copper oxides, oxides of cobalt or aluminum, cobalt-phosphate oxides, aluminum-chromium oxides, and chromium-tin oxides. , Iron-zirconium oxide, iron-zinc oxide, iron-chromium-zinc oxide, iron-cobalt-chromium oxide, chromium-cobalt-aluminum oxide, titanium-iron-zinc oxide, manganese-chromium-copper oxide, cobalt-nickel- One or more oxides, such as titanium oxide, can be used. Titanium nitride, zirconium nitride, titanium-aluminum nitride, titanium-aluminum-carbon nitride, or the like may be used as the metal nitride, and cadmium-zinc sulfide may be used as the metal sulfide. As the metal hydroxide, calcium hydroxide, potassium hydroxide, aluminum hydroxide, lithium hydroxide, magnesium hydroxide, manganese hydroxide, and the like can be used.As a metal silicate compound, aluminum silicate, zirconium silicate, lithium silicate, titanium silicate, cobalt silicate, tartan-potassium Silicates, zirconium-potassium silicates and the like can be used.

The coating film-forming coating material described above may contain known additives such as thickeners, co-solvents, antifoaming agents, catalysts, and the like, as necessary.

As the thickener, thickeners such as molten silica, polyacrylic emulsion thickeners and polyurethane-based thickeners may be used, and the coarse solvent affects the smoothness of the coating film, lowers the minimum film forming temperature and smoothes the atomization of the paint during the painting operation. Not contributing to the volatilization of the solvent, cosolvents such as butyl glycol and butyl carbitol may be used.

Antifoaming agent suppresses bubbles generated during coating material manufacturing, and in particular, defoaming bubbles generated during coating to prevent lifting and swelling of the coating film due to bubbles when forming the coating film, and serves to strongly bond between the coating film and the paper surface, and Defoamers such as oxides, polypropylene oxides and the like are used.

The catalyst is used to accelerate the curing reaction of the reactive synthetic resin, triethylenediamine, dibutyltin dilaurate, butyltin diacetate, butyltin diacetate 틔 ethylamine, tetramethylammonium acetate, tetraethylammonium acetate, tetrabutylammonium acetate Catalysts such as sodium fluoride, dibutyl tin octate, dibutyl tin laurate and the like may be appropriately used depending on the type of reactive synthetic resin.

In addition, the present embodiment may provide a fouling resistant coating film-forming coating material by mixing the fouling resistant components, which is coated on the top coat and dried to form a second coating film.

Since the second coating film usually forms the outermost layer in contact with the atmosphere, a known pollution-resistant component, for example, a photocatalyst such as titanium dioxide, an antimicrobial substance such as silver, a water repellent agent, and the like may be used to maintain cleanliness of the tube. The mixture is further mixed to form a coating film.

In order to give a color to a top coat and a 2nd coating film, a color material, such as an inorganic pigment, can be further added, and a top coat can be formed in duplicate as needed.

That is, before forming the second coating film, the top coat forming process may be repeated twice to form two layers, and the thickness of each of the top coats may be, for example, 100 to 160 micrometers, and the thickness of the second coating film may be, for example. For example, it can be formed from 80 to 100 micrometers.

The surface protective layer of the steel and the nonferrous metal formed as described above was performed according to the KS F 4921 (epoxy resin-based waterproof anticorrosive coating) test method, the results are shown in Table 1 below.

Thus, by using a soda blasting device to easily remove the coating film or scale formed in steel or non-ferrous metal, etc., and to apply the rust preventive primer to the protective object to which the coating film or scale has been removed, and to the protective object to which the rust preventive primer is applied It is possible to provide a surface protection construction method for applying a new coating film to remove steel and nonferrous metal coatings and applying weatherproof reinforcing heavy anticorrosive coatings using an eco-friendly soda blasting pretreatment device that can enhance weather resistance of steel or nonferrous metals. .

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible from those skilled in the art. Will understand.

In addition, the surface protection construction method of applying steel and non-ferrous metal coating film removal and weather resistance reinforced heavy-duty coating using an eco-friendly soda blasting pre-treatment device has been described as an example, but this is merely illustrative, steel and using an eco-friendly soda blasting pre-treatment device and The surface protection construction method of the present invention can also be used for other products other than the surface protection construction method for removing the non-ferrous metal film and applying the weather resistant reinforced anti-corrosive coating.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: tank body 12: first injection port
14 discharge hole 16 second inlet
17: release hole 18: support
18a: lever member 18b: wheel member
30: outlet assembly 32: cover member
34: outlet assembly body 36: discharge pipe
38: adjusting member 38a: floating lever
38b: support member 38c: gap adjusting member
50: stopper assembly 52: cover member
54: cover panel 56: operation lever
58: funnel 59: release valve
70: output pressure control valve 72: seating plate
74: safety cover 76: discharge tube assembly
76a: connecting member 78: control box
78a: 1st air hose 78b: 2nd air hose
78c: 3rd air hose 80: air injection assembly
82: supply hose 84: one-way valve
86: manual valve 87: pressure control valve
88: pressure gauge 100: shatterproof portion
110: pillar member 112: control bar
114: moving roller 116: finishing member
118: adhesive portion 130: connection portion
150: adsorption tube 170: removable portion
180: release

Claims (5)

(a) a pretreatment step of spraying an abrasive containing soda on the surface of the steel or nonferrous metal product and the structure where the coating film is broken to remove the coating film or scale remaining on the protection object made of the steel or nonferrous metal;
(b) A rust preventive primer consisting of a main body, a hardener, a mark, and an additive containing a metal oxide, a metal phosphate, and an alkali silicate on the surface of the protected object 3 to 4 hours after the completion of the pretreatment step. Applying to form a undercoat; And
(c) applying a top coat comprising a ceramic resin, cellulose butyric acid acetate and a phase transfer material to the surface of the object to which the rust preventive primer is applied;
In step (a),
A tank main body including a first inlet, a second inlet, and a discharge hole to accommodate water or glass beads and soda;
An air injection assembly configured to supply air into the tank main body so that the soda reacts to generate an expansion pressure, and installed at the second inlet;
A stopper assembly into which soda, water, or glass beads are inserted and installed in the first inlet so as to seal the tank body;
A control member installed in the discharge hole and connected to the outlet assembly to control whether or not the soda mixture discharged from the tank body is discharged;
An output pressure control valve manipulated by the adjustment member to adjust the discharge pressure of the soda mixture discharged through the discharge hole; And
Is installed in the tank body, the output pressure control valve, the air injection assembly and the air hose provided to the outlet assembly is installed by the pressure provided through the air hose, the output pressure control valve, the air injection assembly and Made by a soda blasting surface treatment apparatus including a control box for controlling the operation of the outlet assembly,
The curing agent includes an alkali metal oxide and an alkali silicate,
The alkali metal oxide is formed by selecting and mixing any one or two selected from the group consisting of potassium oxide (K₂O), sodium oxide (Na₂O), lithium oxide (Li₂O), and cesium oxide (Se₂O), and the alkali The silicate (alkali silicate) is a surface protection construction method for applying a heavy-duty coating of steel and non-ferrous metal using a environmentally friendly soda blasting pretreatment device characterized in that the tetrahedral structure is sealed in the alkali metal atoms, and the non-ferrous metal coating.
The method of claim 1,
The metal oxide is environmentally friendly soda blasting, characterized in that formed by selecting and mixing any one or two or more selected from zinc oxide (ZnO), aluminum oxide (Al₂O₃), calcium oxide (CaO), magnesium oxide (MgO). Surface protection construction method of coating steel removal and non-ferrous metal coating by using pretreatment device and applying heavy-duty anticorrosive coating.
delete The method of claim 1,
The top coat is 50 to 70% by weight of the ceramic resin, 15 to 25% by weight of cellulose butyrate acetate and 10 to 25% by weight of the phase transition material removal of the coating film of steel and non-ferrous metal using an environmentally friendly soda blasting pretreatment device Surface protection construction method to apply weather-resistant reinforced anti-corrosive paint.
The method of claim 4, wherein
The ceramic resin may be removed by using an environmentally friendly soda blasting pretreatment apparatus, which is obtained by hydrolyzing and curing a transparent resin mixture containing an alkoxysilane coupling agent and a metal oxide having a size of 10 to 30 nm, and removing the coating film of steel materials and nonferrous metals. Surface protection construction method to apply weather-resistant reinforced anti-corrosive paint.

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