KR102655617B1 - Apparatus and method for coating graphene - Google Patents

Abstract

It relates to a graphene coating device and method capable of coating graphene on the surface of a metal material, including a graphene storage unit for storing and stirring graphene, a high pressure washing unit for washing the metal material at high pressure, and a graphene coating unit for cleaning the metal material at high pressure. It includes a graphene coating chamber unit for coating graphene, wherein the graphene coating chamber unit includes an external chamber having an oxygen-free atmosphere, an internal chamber disposed within the external chamber and coating graphene on the surface of the metal material in an oxygen-free atmosphere, and the graphene coating chamber unit. A graphene supply line connected between the pin storage unit and the internal chamber to provide a movement path for graphene supplied from the graphene storage unit to the internal chamber, and the graphene supply line to supply the graphene to the internal chamber. a graphene supply pump that transfers the graphene to the graphene storage unit, a graphene recovery line that provides a movement path for the graphene recovered from the internal chamber to the graphene storage unit, and a graphene recovery line that transfers the graphene to the graphene storage unit. It may include a graphene recovery pump.

Description

Graphene coating device and method {APPARATUS AND METHOD FOR COATING GRAPHENE}

The present invention relates to a graphene coating device, and more specifically, to a graphene coating device and method capable of coating graphene on the surface of a metal material.

In general, graphene, a two-dimensional carbon monolayer in which carbon atoms are arranged in a hexagonal lattice, is attracting attention as a promising new nanomaterial with notable electrical, chemical, and mechanical properties.

Specifically, graphene has a two-dimensional carbon atomic plane structure in which carbon atomic layers are tightly packed into the plane of hexagonal lattice points. Graphene has a tensile strength about 311 times stronger than steel and an electron mobility 1,000 times that of silicon. It is twice as fast, has ten times better thermal conductivity than copper, is transparent enough to allow 98% of light to pass through, and has the property of maintaining its properties even when bent or stretched.

Due to these characteristics, it can be widely used in nanomaterials, ink, barrier materials, heat dissipation materials, ultra-light materials, energy electrode materials, next-generation semiconductors, and transparent electrodes.

When graphene with these characteristics is coated on a metal material, it is expected that corrosion resistance, heat dissipation, conductivity, adhesion, strength, and processability will be secured on the surface of the metal material, allowing the metal material to be utilized in various fields.

However, the existing graphene coating method had the problem of increasing the price of graphene-coated metal products because the coating equipment for coating graphene on metal products was expensive and the coating process was complicated.

Additionally, in the existing graphene coating method, graphene is coated thinly on the surface of a metal product, so the graphene coating is not uniform and it is difficult to maintain the coating for a long time.

Therefore, in the future, there is a need to develop a low-cost graphene coating device that can uniformly and quickly coat graphene to a certain depth on the surface of a metal material using a simple coating method.

Republic of Korea Patent Publication No. 10-2014-0092447 (July 24, 2014)

The technical problem to be achieved by an embodiment of the present invention is to place a graphene coating chamber on a metal manufacturing process in which heat and pressure are generated, and then coat the cleaned metal surface with graphene in an oxygen-free atmosphere, thereby forming the metal surface using a simple coating method. The aim is to provide a low-cost graphene coating device and method that can uniformly and quickly coat graphene at a certain depth.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

In order to solve the above technical problems, the graphene coating device according to an embodiment of the present invention is a graphene coating device placed on a metal material manufacturing process in which heat and pressure are generated, and is a graphene coating device that stores and stirs graphene. It includes a pin storage unit, a high-pressure cleaning unit for washing the metal material at high pressure, and a graphene coating chamber unit for coating the graphene on the surface of the cleaned metal material, wherein the graphene coating chamber unit includes an external chamber having an oxygen-free atmosphere, An internal chamber disposed in an external chamber and coating graphene on the surface of the metal material in an oxygen-free atmosphere, a movement path of graphene connected between the graphene storage unit and the internal chamber and supplied from the graphene storage unit to the internal chamber. A graphene supply line that provides a graphene supply line, a graphene supply pump that transfers the graphene to the inner chamber through the graphene supply line, and a graphene supply line that provides a movement path for the graphene recovered from the inner chamber to the graphene storage unit. It may include a pin recovery line, and a graphene recovery pump that transfers the graphene to the graphene storage unit through the graphene recovery line.

In an alternative embodiment of the graphene coating device, the graphene storage unit may include a graphene tank for storing the graphene, and a stirrer for stirring the graphene.

In an alternative embodiment of the graphene coating device, the high-pressure cleaning unit includes a cleaning nozzle that sprays high-pressure cleaning water on the surface of the metal material, and a cleaning water supply connected to the cleaning nozzle to provide a movement path for the cleaning water supplied to the cleaning nozzle. It may include a line, and a washing water supply pump that transfers the washing water to the washing nozzle through the washing water supply line.

In an alternative embodiment of the graphene coating device, the high-pressure washing unit may be located at the front of the graphene coating chamber unit and spray high-pressure washing water on the surface of the metal material moving in the direction of the graphene coating chamber unit.

In an alternative embodiment of the graphene coating device, the graphene coating chamber unit transfers the cleaned metal material to the inner space of the inner chamber through the inner space of the outer chamber, and transfers the graphene coating material to the inner space of the inner chamber through the inner space of the outer chamber. This coated metal material can be transported to the outside through the inner space of the external chamber.

In an alternative embodiment of the graphene coating device, the graphene coating chamber portion is disposed between a first rolling roller and a second rolling roller when placed on a rolling process for rolling the metal material, and the first rolling roller primarily pressurizes the metal material to which heat of a predetermined temperature has been applied and moves it toward the graphene coating chamber, and the second rolling roller secondarily presses the graphene-coated metal material in the graphene coating chamber. It can then be moved to the next process.

In an alternative embodiment of the graphene coating device, the graphene coating chamber portion is disposed between an extruder and an extrusion die when placed on an extrusion process for extruding the metal material, and the extruder is applied with heat at a predetermined temperature. The metal material is extruded and moved toward the graphene coating chamber, and the extrusion die can extrude the graphene-coated metal material from the graphene coating chamber and move it to the next process.

In an alternative embodiment of the graphene coating device, the graphene coating chamber portion, when placed on a drawing process for drawing the metal material, is disposed between a heater and a drawing die, and the heater is provided from an uncoiler. The metal material moving in the direction of the graphene coating chamber is heated, and the drawing die can draw the graphene-coated metal material from the graphene coating chamber and move it to a recoiler.

In an alternative embodiment of the graphene coating device, it further includes a control unit that controls the graphene storage unit, the high pressure washing unit, and the graphene coating chamber unit, wherein the control unit controls the metal material manufacturing process in which heat and pressure are generated. When entering the provisional cleaning section, the high-pressure cleaning unit is controlled to wash the metal material at high pressure, and when the cleaned metal material is transferred into the graphene coating chamber section in an oxygen-free atmosphere, the graphene is introduced and the graphene is applied to the surface of the metal material. The graphene coating chamber part can be controlled to coat.

In an alternative embodiment of the graphene coating device, when controlling the graphene coating chamber unit, the control unit, at least one of the graphene coating sequence of the metal material, the graphene coating area of the metal material, and the graphene coating temperature of the metal material The supply amount of the graphene may be determined based on one of the above, and the graphene coating chamber unit may be controlled to inject the graphene according to the determined supply amount of the graphene.

The graphene coating method according to an embodiment of the present invention is a graphene coating device that includes a control unit that controls the graphene storage unit, the high-pressure washing unit, and the graphene coating chamber unit, and is disposed on a metal material manufacturing process in which heat and pressure are generated. A graphene coating method, wherein the control unit checks whether the metal material enters a cleaning section, the control unit controls the high pressure washing unit to wash the metal material at high pressure when the metal material enters the cleaning section, and the control unit controls the high pressure washing unit to wash the metal material at high pressure. A step of confirming whether the cleaned metal material is transferred into the graphene coating chamber part, wherein the control unit injects graphene when the cleaned metal material is transferred into the graphene coating chamber part and applies the graphene to the surface of the metal material in an oxygen-free atmosphere. Controlling the graphene coating chamber unit to coat graphene, and recovering the graphene remaining in the graphene coating chamber unit to the graphene storage unit when the control unit completes graphene coating on the surface of the metal material. It can be included.

The effects of the graphene coating device and method according to the present invention will be described as follows.

The present invention places a graphene coating chamber on a metal manufacturing process in which heat and pressure are generated and graphene is coated on the surface of the cleaned metal material in an oxygen-free atmosphere, thereby uniformly applying graphene to a certain depth on the surface of the metal material using a simple coating method. A low-cost graphene coating device that can be coated quickly can be provided.

In addition, the present invention can minimize graphene consumption by efficiently using graphene by adjusting the supply amount of graphene according to the graphene coating sequence of the metal material, the graphene coating area of the metal material, and the graphene coating temperature of the metal material. there is.

In addition, the present invention can reduce graphene waste and reduce graphene costs by recovering and reusing the graphene in the graphene coating chamber when the graphene coating of the metal material is completed.

In addition, the present invention can uniformly coat graphene on the surface of a metal material to a certain depth, so the surface hardness and surface strength of the metal material are strengthened, the thermal conductivity of the metal material is enhanced, and the wear resistance is improved due to the high hardness and strength of the metal material. Corrosion resistance is strengthened by surface coating due to the inability of graphene to be chemically modified, and the slippage of metal surfaces can be increased due to the lubricating action of graphene.

Further scope of applicability of the present invention will become apparent from the detailed description that follows. However, since various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art, the detailed description and specific embodiments such as preferred embodiments of the present invention should be understood as being given only as examples.

Figure 1 is a block diagram for explaining a graphene coating device according to the present invention.
Figure 2 is a schematic diagram for explaining the graphene coating device according to the present invention.
Figure 3 is a schematic diagram illustrating a graphene coating device disposed on a rolling process.
Figure 4 is a schematic diagram illustrating a graphene coating device disposed on an extrusion process.
Figure 5 is a schematic diagram illustrating a graphene coating device disposed on a drawing process.
Figure 6 is a flowchart for explaining the graphene coating method according to the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The suffixes “module” and “part” for the components used in the following description are simply given in consideration of the ease of writing this specification, and the “module” and “part” may be used interchangeably.

Furthermore, embodiments of the present invention will be described in detail below with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited by the embodiments.

The terms used in this specification are general terms that are currently widely used as much as possible while considering the function in the present invention, but this may vary depending on the intention or custom of a person skilled in the art or the emergence of new technology. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in the description of the relevant invention. Therefore, we would like to clarify that the terms used in this specification should be interpreted based on the actual meaning of the term and the overall content of this specification, not just the name of the term.

Figure 1 is a block diagram for explaining the graphene coating device according to the present invention, and Figure 2 is a schematic diagram for explaining the graphene coating device according to the present invention.

As shown in Figures 1 and 2, the graphene coating device of the present invention includes a graphene storage unit 100 for storing and stirring graphene 110, and a high pressure washing unit for washing the metal material 500 at high pressure. (200), and may include a graphene coating chamber portion 300 that coats graphene 110 on the surface of the cleaned metal material 500.

In addition, the graphene coating device of the present invention may further include a control unit 400 that controls the graphene storage unit 100, the high pressure washing unit 200, and the graphene coating chamber unit 300.

Here, the graphene storage unit 100 may include a graphene tank storing the graphene 110 and a stirrer for stirring the graphene 110.

As an example, graphene 110 may be stored in a liquid, powder, or dispersion state, but this is only an example and is not limited thereto.

In addition, the high-pressure washing unit 200 has a washing nozzle 210 that sprays high-pressure washing water on the surface of the metal material 500, and is connected to the washing nozzle 210 to provide a movement path for the washing water supplied to the washing nozzle 210. It may include a washing water supply line 220 that transfers the washing water to the washing nozzle 210 through the washing water supply line 220 and a washing water supply pump 230.

The high-pressure washing unit 200 is located at the front of the graphene coating chamber unit 300 and can spray high-pressure washing water on the surface of the metal material 500 moving in the direction of the graphene coating chamber unit 300.

That is, the metal material 500 is washed before graphene coating to remove foreign substances on the surface, thereby increasing graphene coating efficiency.

Here, the metal material 500 is made of at least one of ferrous metals including carbon steel and stainless steel, and non-ferrous metals including aluminum, magnesium alloy, and titanium alloy, and has at least one shape among plate, round bar, wire, and pipe. However, this is only an example and is not limited thereto.

As an example, when the high-pressure washing unit 200 is placed on a rolling process for rolling the metal material 500, the metal material 500 to which heat at a predetermined temperature is applied is pressed by a rolling roller to form a graphene coating chamber portion ( High-pressure washing water can be sprayed on the surface of the metal material 500 moving in the direction 300).

As another example, when the high pressure washing unit 200 is placed on an extrusion process for extruding the metal material 500, the metal material 500 to which heat at a predetermined temperature is applied is extruded in the direction of the graphene coating chamber portion 300. High-pressure washing water may be sprayed on the surface of the moving metal material 500.

As another example, when the high pressure washing unit 200 is disposed on a drawing process for drawing the metal material 500, the surface of the metal material 500 moves from the uncoiler toward the graphene coating chamber portion 300. You can also spray high-pressure washing water.

Next, the graphene coating chamber unit 300 is an external chamber 310 having an oxygen-free atmosphere, and an internal chamber disposed within the external chamber 310 to coat graphene 110 on the surface of the metal material 500 in an oxygen-free atmosphere ( 320), a graphene supply connected between the graphene storage unit 100 and the internal chamber 320 to provide a movement path for the graphene 110 supplied from the graphene storage unit 310 to the internal chamber 320 Line 330, a graphene supply pump 340 that transfers graphene 110 to the inner chamber 320 through the graphene supply line 330, and from the inner chamber 320 to the graphene storage unit 100. A graphene recovery line 350 that provides a movement path for the recovered graphene 110, and a graphene recovery that transfers the graphene 110 to the graphene storage unit 100 through the graphene recovery line 350. It may include a pump 360.

Here, the graphene coating chamber unit 300 transports the cleaned metal material 500 to the inner space of the inner chamber 320 through the inner space of the outer chamber 310, and from the inner space of the inner chamber 320 to the inner space of the inner chamber 320. The graphene-coated metal material 500 can be transported to the outside through the inner space of the external chamber 310.

That is, the metal material 500 may be transferred to the inner chamber 320 through the outer chamber 310 in an oxygen-free atmosphere, or the graphene-coated metal material 500 may be transported to the outside through the outer chamber 310 in an oxygen-free atmosphere. In this case, the oxidation reaction of the metal material 500 can be prevented before and after graphene is added.

In addition, the graphene coating chamber unit 300 arranges a first entrance port on one side of the external chamber 310 so that the cleaned metal material 500 enters the internal space of the external chamber 310, and the metal material 500 enters the internal space of the external chamber 310. A second entrance is disposed on one side of the inner chamber 320 to enter the inner space of the inner chamber 320 through the inner space of the chamber 310, and a metal material coated with graphene in the inner space of the inner chamber 320 ( A first exit port is disposed on the other side of the inner chamber 320 so that 500 can advance into the inner space of the outer chamber 310, and the outer chamber allows the metal material 500 to advance to the outside through the inner space of the outer chamber 310. (310) A second outlet can be placed on the other side.

Here, the graphene coating chamber unit 300 may be arranged so that the first inlet, the second inlet, the first outlet, and the second outlet are located on the same straight line.

In addition, the control unit 400 can control the graphene coating chamber unit 300, and the control unit 400 controls the graphene supply pump to adjust the supply amount of graphene 110 supplied to the internal chamber 320. (340) can be controlled.

Here, the control unit 400 controls the internal chamber 320 based on at least one of the graphene coating sequence of the metal material 500, the graphene coating area of the metal material 500, and the graphene coating temperature of the metal material 500. The supply amount of graphene 110 may be determined, and the graphene supply pump 340 may be controlled according to the determined supply amount of graphene 110.

As an example, when the graphene coating temperature of the metal material 500 is high, the graphene coating rate of the metal material 500 increases, so the control unit 400 increases the supply amount of graphene 110 and increases the graphene coating rate of the metal material 500. When the graphene coating temperature is low, the graphene coating rate of the metal material 500 is reduced, so the supply amount of graphene 110 can be reduced.

As another example, when the graphene coating area of the metal material 500 is large, the control unit 400 increases the supply amount of graphene 110, and when the graphene coating area of the metal material 500 is narrow, the control unit 400 increases the supply amount of graphene ( 110) supply can be reduced.

As another example, the control unit 400 controls the supply amount of graphene 110 because, in the process of multiple graphene coatings, the faster the graphene coating sequence of the metal material 500, the graphene coating rate of the metal material 500 increases. increases, and as the graphene coating sequence of the metal material 500 is delayed, the graphene coating rate of the metal material 500 decreases, thereby reducing the supply amount of graphene 110.

In this way, the present invention can efficiently use graphene and minimize graphene consumption by controlling the supply amount of graphene according to the graphene coating sequence of the metal material, graphene coating area, and graphene coating temperature.

And, when the graphene coating chamber unit 300 is disposed on a rolling process for rolling the metal material 500, it is disposed between the first rolling roller and the second rolling roller, and the first rolling roller is maintained at a predetermined temperature. The metal material 500 to which heat has been applied is first pressed and moved in the direction of the graphene coating chamber part 300, and the second rolling roller moves the graphene-coated metal material 500 in the graphene coating chamber part 300. It can be moved to the next process by applying secondary pressure.

In some cases, the graphene coating chamber unit 300 is disposed between an extruder and an extrusion die when placed on an extrusion process for extruding the metal material 500, and the extruder is a metal material to which heat at a predetermined temperature is applied ( 500) can be extruded and moved toward the graphene coating chamber part 300, and the extrusion die can extrude the graphene-coated metal material 500 from the graphene coating chamber part 300 and move it to the next process. .

As another case, the graphene coating chamber portion 300, when disposed on a drawing process for drawing the metal material 500, is disposed between a heater and a drawing die, and the heater applies the graphene coating from an uncoiler. The metal material 500 moving in the direction of the chamber part 300 is heated, and the drawing die draws the graphene-coated metal material 500 from the graphene coating chamber part 300 and moves it to the recoiler. You can.

In this way, the graphene coating chamber unit 300 is a metal material manufacturing process in which heat and pressure are generated, and can be disposed on a rolling process for rolling a metal material, an extrusion process for extruding a metal material, and a drawing process for drawing a metal material.

Here, one or more graphene coating chamber units 300 may be disposed in a rolling process for rolling a metal material, one or more graphene coating chamber units 300 may be disposed in an extrusion process for extruding a metal material, and a drawing process for drawing a metal material. One or multiple units may be placed.

As an example, when the graphene coating chamber unit 300 is disposed on a rolling process for rolling the metal material 500, between the rough rolling process and the intermediate/fine rolling process, the intermediate/fine rolling process and the finishing block (finishing block) ) It may be placed between at least one of the processes.

As another example, when the graphene coating chamber unit 300 is placed on an extrusion process for extruding the metal material 500, the graphene coating chamber unit 300 is placed between an extruder and an extrusion die or between an extrusion die and a pull roller. It may be placed in .

As another example, when the graphene coating chamber unit 300 is disposed on a drawing process for drawing the metal material 500, it is located between an uncoiler and a drawing die or between a drawing die and a recoiler. It may be placed between any one process.

In addition, the metal material 500 is made of at least one of ferrous metals including carbon steel and stainless steel, and non-ferrous metals including aluminum, magnesium alloys, and titanium alloys, and has at least one shape among plate, round bar, wire, and pipe. However, this is only an example and is not limited thereto.

Additionally, graphene 110 may be added to the graphene coating chamber 300 in any one of liquid, powder, and dispersion states, but this is only an example and is not limited thereto.

Next, in the metal material manufacturing process in which heat and pressure are generated, the control unit 400 controls the high-pressure cleaning unit 200 to wash the metal material 500 at high pressure when the metal material 500 enters the washing section, and the cleaned metal material. When 500 is transferred into the graphene coating chamber 300 in an oxygen-free atmosphere, the graphene coating chamber 300 is controlled to coat the surface of the metal material 500 with graphene 110 by adding graphene 110. can do.

Here, the control unit 400 controls the high-pressure washing unit 200 to wash the metal material 500 at high pressure when the metal material 500 enters the cleaning section, and at the same time, the graphene 110 is introduced while maintaining an oxygen-free atmosphere. The graphene coating chamber unit 300 can be controlled as much as possible.

In some cases, the control unit 400 controls the high-pressure washing unit 200 to wash the metal material 500 at high pressure when the metal material 500 enters the cleaning section and simultaneously controls the graphene coating chamber unit to have an oxygen-free atmosphere. 300 may be controlled, and the graphene coating chamber unit 300 may be controlled to inject graphene 110 when high-pressure washing of the metal material 500 is completed.

In another case, the control unit 400 may control the graphene coating chamber unit 300 to input the graphene 110 in an oxygen-free atmosphere when high-pressure washing of the metal material 500 is completed.

As another case, the control unit 400 controls the graphene coating chamber unit 300 to have an oxygen-free atmosphere when high-pressure washing of the metal material 500 is completed, and the metal material 500 controls the graphene coating chamber unit 300. ), the graphene coating chamber unit 300 can be controlled so that the graphene 110 is introduced.

Next, when controlling the graphene coating chamber unit 300, the control unit 400 generates graphene based on at least one of the graphene coating sequence of the metal material, the graphene coating area of the metal material, and the graphene coating temperature of the metal material. The supply amount of can be determined, and the graphene coating chamber unit 300 can be controlled to inject graphene according to the determined supply amount of graphene.

Here, the control unit 400 may increase the supply amount of graphene as the graphene coating temperature of the metal material increases.

Additionally, the control unit 400 may increase the supply amount of graphene as the graphene coating area of the metal material increases.

Additionally, the control unit 400 may increase the supply amount of graphene as the graphene coating sequence on the metal material becomes faster.

As such, the present invention places a graphene coating chamber on a metal manufacturing process that generates heat and pressure and coats the cleaned metal surface with graphene in an oxygen-free atmosphere, thereby spreading the graphene to a certain depth on the metal surface using a simple coating method. It is possible to provide a low-cost graphene coating device that can uniformly and quickly coat.

In addition, the present invention can minimize graphene consumption by efficiently using graphene by adjusting the supply amount of graphene according to the graphene coating sequence of the metal material, the graphene coating area of the metal material, and the graphene coating temperature of the metal material. there is.

In addition, the present invention can reduce graphene waste and reduce graphene costs by recovering and reusing the graphene in the graphene coating chamber when the graphene coating of the metal material is completed.

In addition, the present invention can uniformly coat graphene on the surface of a metal material to a certain depth, so the surface hardness and surface strength of the metal material are strengthened, the thermal conductivity of the metal material is enhanced, and the wear resistance is improved due to the high hardness and strength of the metal material. Corrosion resistance is strengthened by surface coating due to the inability of graphene to be chemically modified, and the slippage of metal surfaces can be increased due to the lubricating action of graphene.

Figure 3 is a schematic diagram illustrating a graphene coating device disposed on a rolling process.

As shown in FIG. 3, the graphene coating device of the present invention can be placed on a rolling process in which heat and pressure are generated.

The high-pressure washing unit 200 is located at the front of the graphene coating chamber unit 300 and can spray high-pressure washing water on the surface of the metal material 500 moving in the direction of the graphene coating chamber unit 300.

The reason is that if the metal material 500 is cleaned before graphene coating to remove foreign substances on the surface of the metal material, the graphene coating efficiency can be increased.

Here, the high pressure washing unit 200 is a surface of the metal material 500 to which heat at a predetermined temperature is applied is pressed by the first rolling roller 610 and moves toward the graphene coating chamber portion 300. High-pressure washing water can be sprayed.

And, the graphene coating chamber unit 300 may be disposed between the first rolling roller 610 and the second rolling roller 620.

Here, the first rolling roller 610 primarily presses the metal material 500 to which heat at a predetermined temperature has been applied and moves it in the direction of the graphene coating chamber portion 300, and the second rolling roller 620 moves the metal material 500 to which heat at a predetermined temperature has been applied. In the pin coating chamber unit 300, the graphene-coated metal material 500 can be moved to the next process by applying secondary pressure.

Additionally, one or more graphene coating chamber units 300 may be disposed in a rolling process for rolling a metal material.

As an example, the graphene coating chamber unit 300 is, in a rolling process for rolling a metal material, at least one of between the rough rolling process and the intermediate/fine rolling process, and between the intermediate/fine rolling process and the finishing block process. It can be placed between processes.

In this way, the present invention coats graphene on a metal material that generates high temperature heat through a rolling process and pressurizes the graphene-coated metal material through a rolling roller, so that graphene is uniformly and stably deposited at a certain depth within the surface of the metal material. can be coated with

Figure 4 is a schematic diagram illustrating a graphene coating device disposed on an extrusion process.

As shown in FIG. 4, the graphene coating device of the present invention can be placed on an extrusion process in which heat and pressure are generated.

The high-pressure washing unit 200 is located at the front of the graphene coating chamber unit 300 and can spray high-pressure washing water on the surface of the metal material 500 moving in the direction of the graphene coating chamber unit 300.

The reason is that if the metal material 500 is cleaned before graphene coating to remove foreign substances on the surface of the metal material, the graphene coating efficiency can be increased.

Here, the high-pressure washing unit 200 can spray high-pressure washing water on the surface of the metal material 500, to which heat at a predetermined temperature is applied, is extruded and moves toward the graphene coating chamber unit 300. .

And, the graphene coating chamber unit 300 may be disposed between the extruder 710 and the extrusion die 720.

Here, the extruder 710 extrudes the metal material 500 to which heat at a predetermined temperature is applied and moves it in the direction of the graphene coating chamber portion 300, and the extrusion die 720 moves the metal material 500 to which heat at a predetermined temperature has been applied. The graphene-coated metal material 500 can be extruded and moved to the next process.

Additionally, one or more graphene coating chamber units 300 may be disposed in an extrusion process for extruding a metal material.

As an example, the graphene coating chamber unit 300 is located between the extruder 710 and the extrusion die 720 and between the extrusion die 720 and a pull roller (not shown) in an extrusion process for extruding a metal material. It can be placed between any one of the processes.

In this way, the present invention coats graphene on a metal material that generates high temperature heat through an extrusion process and pressurizes the graphene-coated metal material through an extrusion die, so that graphene is uniformly and stably deposited at a certain depth within the surface of the metal material. can be coated with

Figure 5 is a schematic diagram illustrating a graphene coating device disposed on a drawing process.

As shown in Figure 5, the graphene coating device of the present invention can be placed on a drawing process in which heat and pressure are generated.

The high-pressure washing unit 200 is located at the front of the graphene coating chamber unit 300 and can spray high-pressure washing water on the surface of the metal material 500 moving in the direction of the graphene coating chamber unit 300.

The reason is that if the metal material 500 is cleaned before graphene coating to remove foreign substances on the surface of the metal material, the graphene coating efficiency can be increased.

Here, the high-pressure washing unit 200 may spray high-pressure washing water on the surface of the metal material 500 moving from the uncoiler 830 toward the graphene coating chamber unit 300.

And, the graphene coating chamber unit 300 may be disposed between the heater 810 and the drawing die 820.

Here, the heater 810 heats the metal material 500 moving from the uncoiler 830 toward the graphene coating chamber portion 300, and the drawing die 820 heats the graphene coating chamber portion ( The graphene-coated metal material 500 may be drawn from 300 and moved to a recoiler 840.

Additionally, one or more graphene coating chamber units 300 may be disposed during a drawing process for drawing a metal material.

As an example, the graphene coating chamber unit 300 is between the uncoiler 830 and the drawing die 820, and the drawing die 820 and the recoiler 840 in a drawing process for drawing a metal material. ) can be placed between any one of the processes.

In this way, the present invention coats graphene on a metal material to which high temperature heat is applied through a drawing process and pressurizes the graphene-coated metal material through a drawing die, so that graphene is uniformly and stably deposited at a certain depth within the surface of the metal material. can be coated with

Figure 6 is a flowchart for explaining the graphene coating method according to the present invention.

As shown in Figure 6, the control unit of the present invention can check whether the metal material enters the washing section (S10).

Next, the control unit may control the high-pressure washing unit to wash the metal material at high pressure when the metal material enters the washing section (S20).

Here, the control unit may control the high-pressure washing unit to wash the metal material at high pressure when the metal material enters the cleaning section, and at the same time control the graphene coating chamber unit to input graphene while maintaining an oxygen-free atmosphere.

In some cases, the control unit controls the high-pressure washing unit to wash the metal material at high pressure when the metal material enters the cleaning section, and at the same time controls the graphene coating chamber section to have an oxygen-free atmosphere, and when the high-pressure washing of the metal material is completed, the graphene is The graphene coating chamber part can also be controlled to input the material.

In another case, the control unit may control the graphene coating chamber unit so that graphene is introduced in an oxygen-free atmosphere when high-pressure washing of the metal material is completed.

In another case, the control unit controls the graphene coating chamber unit to have an oxygen-free atmosphere when high-pressure washing of the metal material is completed, and controls the graphene coating chamber unit to input graphene when the metal material enters the graphene coating chamber unit. It may be possible.

And, the control unit can check whether the cleaned metal material is transferred into the graphene coating chamber part (S30).

Next, the control unit may control the graphene coating chamber unit to coat the surface of the metal material with graphene in an oxygen-free atmosphere by adding graphene when the cleaned metal material is transferred into the graphene coating chamber unit (S40).

Here, the control unit determines the supply amount of graphene based on at least one of the graphene coating sequence of the metal material, the graphene coating area of the metal material, and the graphene coating temperature of the metal material, and supplies graphene according to the determined supply amount of graphene. The graphene coating chamber part can be controlled to input the material.

Next, the control unit can check whether graphene coating on the surface of the metal material is completed (S50).

And, when graphene coating on the surface of the metal material is completed, the control unit can recover the graphene remaining in the graphene coating chamber unit to the graphene storage unit (S60).

Next, the control unit checks whether a request to end the graphene coating is received (S70), and when the request to end the graphene coating is received, the control unit may end the graphene coating process.

As such, the present invention places a graphene coating chamber on a metal manufacturing process that generates heat and pressure and coats the cleaned metal surface with graphene in an oxygen-free atmosphere, thereby spreading the graphene to a certain depth on the metal surface using a simple coating method. It is possible to provide a low-cost graphene coating device that can uniformly and quickly coat.

In addition, the present invention can minimize graphene consumption by efficiently using graphene by adjusting the supply amount of graphene according to the graphene coating sequence of the metal material, the graphene coating area of the metal material, and the graphene coating temperature of the metal material. there is.

In addition, the present invention can reduce graphene waste and reduce graphene costs by recovering and reusing the graphene in the graphene coating chamber when the graphene coating of the metal material is completed.

In addition, the present invention can uniformly coat graphene on the surface of a metal material to a certain depth, so the surface hardness and surface strength of the metal material are strengthened, the thermal conductivity of the metal material is enhanced, and the wear resistance is improved due to the high hardness and strength of the metal material. Corrosion resistance is strengthened by surface coating due to the inability of graphene to be chemically modified, and the slippage of metal surfaces can be increased due to the lubricating action of graphene.

The features, structures, effects, etc. described in the present inventions above are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified and implemented in other embodiments by a person with ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present invention.

In addition, although the above description has been made focusing on the examples, this is only an example and does not limit the present invention, and those skilled in the art will understand the above examples without departing from the essential characteristics of the present embodiment. You will be able to see that various modifications and applications are possible. For example, each component specifically shown in the examples can be modified and implemented. And these variations and differences in application should be construed as being included in the scope of the present invention as defined in the appended claims.

100: graphene storage unit
200: High pressure washing unit
210: cleaning nozzle
220: Washing water supply line
230: Washing water supply pump
300: Graphene coating chamber part
310: external chamber
320: inner chamber
330: Graphene supply line
340: Graphene supply pump
350: Graphene recovery line
360: Graphene recovery pump
400: Control unit
500: Metal material

Claims (10)

In a graphene coating device placed on a metal manufacturing process where heat and pressure are generated,
Graphene storage unit for storing and stirring graphene;
A high-pressure washing unit that washes metal materials at high pressure; and,
It includes a graphene coating chamber unit that coats the graphene on the cleaned metal surface,
The graphene coating chamber part,
an external chamber with an oxygen-free atmosphere;
an inner chamber disposed within the outer chamber to coat the metal surface with graphene in an oxygen-free atmosphere;
a graphene supply line connected between the graphene storage unit and the internal chamber to provide a movement path for graphene supplied from the graphene storage unit to the internal chamber;
a graphene supply pump transporting the graphene to the internal chamber through the graphene supply line;
a graphene recovery line that provides a movement path for graphene recovered from the internal chamber to the graphene storage unit;
a graphene recovery pump that transfers the graphene to the graphene storage unit through the graphene recovery line; and
It includes a control unit that controls the graphene storage unit, high pressure washing unit, and graphene coating chamber unit,
The control unit controls the high-pressure washing unit to wash the metal material at high pressure when the metal material enters the cleaning section in a metal material manufacturing process in which heat and pressure are generated, and the cleaned metal material is placed into the graphene coating chamber portion in an oxygen-free atmosphere. When transferred, the graphene coating chamber is controlled to apply the graphene and coat the surface of the metal material with the graphene,
When controlling the graphene coating chamber unit, the control unit determines the supply amount of the graphene based on the graphene coating sequence of the metal material, the graphene coating area of the metal material, and the graphene coating temperature of the metal material. , controlling the graphene coating chamber unit to inject the graphene according to the determined supply amount of graphene,
The control unit,
When the graphene coating temperature of the metal material is high, the supply amount of the graphene is increased, and when the graphene coating temperature of the metal material is low, the supply amount of the graphene is reduced,
When the graphene coating area of the metal material is large, the supply amount of the graphene is increased, and when the graphene coating area of the metal material is narrow, the supply amount of the graphene is reduced,
In several graphene coating processes, the faster the graphene coating sequence of the metal material, the more the supply amount of graphene increases, and the later the graphene coating sequence of the metal material decreases the supply amount of graphene,
The graphene coating is carried out in several processes, and a process carried out relatively quickly in several graphene coating processes means that the graphene coating sequence is fast, and a process carried out relatively late in several graphene coating processes means that the graphene coating sequence is fast. This means that the graphene coating sequence is late for the process,
The graphene coating chamber part,
When placed on an extrusion process for extruding the metal material, it is placed between the extruder and the extrusion die,
The extruder,
Extruding a metal material to which heat at a predetermined temperature has been applied and moving it toward the graphene coating chamber,
The extrusion die is,
A graphene coating device characterized in that the graphene-coated metal material is extruded from the graphene coating chamber and moved to the next process. In a graphene coating device placed on a metal manufacturing process where heat and pressure are generated,
Graphene storage unit for storing and stirring graphene;
A high-pressure washing unit that washes metal materials at high pressure; and,
It includes a graphene coating chamber unit that coats the graphene on the cleaned metal surface,
The graphene coating chamber part,
an external chamber with an oxygen-free atmosphere;
an inner chamber disposed within the outer chamber to coat the metal surface with graphene in an oxygen-free atmosphere;
a graphene supply line connected between the graphene storage unit and the internal chamber to provide a movement path for graphene supplied from the graphene storage unit to the internal chamber;
a graphene supply pump transporting the graphene to the internal chamber through the graphene supply line;
a graphene recovery line that provides a movement path for graphene recovered from the internal chamber to the graphene storage unit;
a graphene recovery pump that transfers the graphene to the graphene storage unit through the graphene recovery line; and
It includes a control unit that controls the graphene storage unit, high pressure washing unit, and graphene coating chamber unit,
The control unit controls the high-pressure washing unit to wash the metal material at high pressure when the metal material enters the cleaning section in a metal material manufacturing process in which heat and pressure are generated, and the cleaned metal material is placed into the graphene coating chamber portion in an oxygen-free atmosphere. When transferred, the graphene coating chamber is controlled to apply the graphene and coat the surface of the metal material with the graphene,
When controlling the graphene coating chamber unit, the control unit determines the supply amount of the graphene based on the graphene coating sequence of the metal material, the graphene coating area of the metal material, and the graphene coating temperature of the metal material. , controlling the graphene coating chamber unit to inject the graphene according to the determined supply amount of graphene,
The control unit,
When the graphene coating temperature of the metal material is high, the supply amount of the graphene is increased, and when the graphene coating temperature of the metal material is low, the supply amount of the graphene is reduced,
When the graphene coating area of the metal material is large, the supply amount of the graphene is increased, and when the graphene coating area of the metal material is narrow, the supply amount of the graphene is reduced,
In several graphene coating processes, the faster the graphene coating sequence of the metal material, the more the supply amount of graphene increases, and the later the graphene coating sequence of the metal material decreases the supply amount of graphene,
The graphene coating is carried out in several processes, and a process carried out relatively quickly in several graphene coating processes means that the graphene coating sequence is fast, and a process carried out relatively late in several graphene coating processes means that the graphene coating sequence is carried out relatively quickly. This means that the graphene coating sequence is late for the process,
The graphene coating chamber part,
When placed on a drawing process for drawing the metal material, it is placed between a heater and a drawing die,
The heater,
Heating the metal material moving from the uncoiler toward the graphene coating chamber,
The drawing dice,
A graphene coating device, characterized in that the graphene-coated metal material is drawn from the graphene coating chamber and moved to a recoiler. According to claim 1 or 2,
The high pressure washing unit,
a cleaning nozzle that sprays high-pressure cleaning water onto the surface of the metal material;
a washing water supply line connected to the washing nozzle and providing a movement path for washing water supplied to the washing nozzle; and,
Graphene coating device comprising a washing water supply pump that transfers the washing water to the washing nozzle through the washing water supply line. According to claim 1 or 2,
The high pressure washing unit,
A graphene coating device, characterized in that it is located at the front end of the graphene coating chamber and sprays high-pressure washing water on the surface of the metal material moving in the direction of the graphene coating chamber. According to claim 1 or 2,
The graphene coating chamber part,
The cleaned metal material is transferred to the inner space of the inner chamber through the inner space of the outer chamber,
A graphene coating device, characterized in that the metal material coated with graphene is transferred from the inner space of the inner chamber to the outside through the inner space of the outer chamber.

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