KR20210101651A - The composite panel and the manufacturing method using ceramic panel and wood panel - Google Patents

Abstract

The present invention relates to a technology for obtaining a composite panel, provided by composition of wood in order to reduce the weight of the ceramic panels imported in an imitation marble-type and to enhance usability as an upper plate for furniture such as a table, a desk, etc. The present invention provides a method for manufacturing a composite panel, comprising: a first step manufacturing process of cutting a ceramic panel in accordance with a desired shape and standard by a water jet processing machine; a second step manufacturing process of forming horizontal recesses and vertical recesses on a back surface of one side of wood in order to form a structure for preventing twisting of a wood panel; a third step manufacturing process of applying a foamy adhesive to a portion of the wood panel, having passed the second step manufacturing process, which is to be bonded with the ceramic panel, while also applying the foamy adhesive to the horizontal recesses; a fourth step press process of first fitting steel cores in the horizontal recesses of the wood panel, having passed the third step manufacturing process, performing an insertion process so as to make steel core surfaces consistent with the bottom surface of the wood panel, then stacking the ceramic panel, prepared in the first step manufacturing process, on the surface to which the foamy adhesive has been applied to form a composite panel, and compressing and ripening the composite panel using a pressing compressor of 150-500 kg; and a fifth step manufacturing process of withdrawing the composite panel, having passed the fourth step press process, from the pressing compressor, and forming the composite panel chamfered or processed at a desired angle by using a mechanism selected among a jig saw, a trimmer mechanism, a grinder and a polisher, thereby providing the composite panel formed by composition of the ceramic panels and the wood panel.

Description

The composite panel and the manufacturing method using ceramic panel and wood panel provided by the synthesis of two ceramic boards and wood boards

The present invention relates to a composite plate material in which a plate serving as a table top plate, such as a dining table or desk, is composed of two ceramic plates and a wood plate.

According to the present invention, the ceramic plate material, which is imported in the form of artificial marble, has very low workability, so a lot of partial cuts occur in the processing process. In order to promote aesthetics and enhance practicality in the field, it is a technology to obtain and use composite plates provided by combining ceramic plates and wood.

Ceramic plates are made by litigating inorganic materials at high temperatures, and there is little shrinkage and expansion depending on external climatic conditions. Table tops for dining tables and desks by providing a composite board that always provides a clean aesthetic in a state in which the composite board made of a composite of ceramic board and wood board does not cause separation, bending, or cracking depending on external climatic conditions. It is a technology to provide a furniture top plate that can be used as a material.

Ceramic plate material is an artificial porcelain (porcelain) made by calcining inorganic matter in the form of recrystallization at a high temperature in the range of 2000℃ through contact metamorphism or wide-area metamorphism between limestone and dolomite. It is used as high-quality interior and exterior materials for buildings.

However, the thickness is usually about 3mm to 12mm, and the width and length are 3.2m * 1.6m, 2.8m * 1.4m, 2.4m * 1.2m, etc. There has been a problem that its use is limited, for example, after it is cut to a desired size to be used for a purpose such as a desired dining table, the remaining cut parts with a width of 30 cm and a length of 240 cm are generated.

Therefore, the inventor of the present application has not yet tried in Korea or abroad, for example, when two cut ceramic plates are provided as cut parts with a width of 30 cm and a length of 240 cm, ceramic plate (a) width 30 cm + wood Connect the board width 20cm + ceramic board (b) width 30cm to form a top plate with a total width of 80cm. When using a composite plate used as a material, it does not cause any gaps (separation) or warpage or cracks depending on external climatic conditions. It is a technology to obtain and use the provided composite plate.

Looking at the technology of using artificial marble or porcelain, which provides the natural texture of luxurious marble in the prior art, in Patent No. 10-1052813, "Incombustible composite panel with artificial marble on the edge" has a lightweight structure in related technology, A non-combustible composite panel called a compact board or CMP (compact melmaine panel) is used for office or home use as a means to obtain a non-combustible composite panel that is easy to process, has non-flammability resistance, and has excellent physical properties such as excellent surface strength. When composing a composite panel body for use as a panel for furniture, a panel widely used for bathroom doors or wall panels, etc., the upper and lower surfaces are composed of thin non-combustible composite panels with excellent properties, and the middle surface is made of various colors. The technology to compose it with artificial marble that can be produced is presented.

In addition, in Patent Publication No. 10-2009-0026438, it is a technology related to furniture tops using marble, by bonding textile papers of various colors and patterns to the surface of furniture tops using marble, breaking away from the simple pattern of marble and satisfying the needs of consumers. It is a technology related to furniture tops using marble that can be used in winter without feeling the cold of marble. A technique in which a textile element having various colors and patterns is adhered using an adhesive and a transparent coating layer is applied to the surface of the textile element is proposed.

In addition, in Patent Registration No. 10-1035288, an artificial marble table top plate and its molding method related technology. The molding method of the table top plate is to form a gel coat layer by applying a curable unsaturated polyester resin to the cavity of the mold corresponding to the top plate to be molded. do; A first filling layer is formed by filling the cavity of the mold with the gel coat layer formed with a curable polyurethane resin and an artificial marble composition containing inorganic particles. to form a secondary filling layer; On the secondary filling layer of the artificial marble composition, a protrusion having a thickness smaller than the depth of the mold cavity and having an area smaller than the bottom area of the mold cavity is formed in the center, and on the outside of the protrusion communicating with the cavity of the mold a mold cover having an opening is placed over the mold and pressed to form a cavity surrounded by artificial marble, and then the mold cover is removed; A technique for obtaining an artificial marble table top including a step of separating a finished molded product from a mold after bonding a plate having a dimension corresponding to this to the artificial marble cavity through a binder is proposed.

However, the conventional art related to artificial marble presented in the above form is not easy to handle because its weight is too heavy, and the price of the finished product is high, making it burdensome for the general public to purchase and use. Even after installation at home, due to its heavy weight, housewives find it difficult to handle at home, and thus are being treated as lazy.

The present invention started with the task of providing a composite plate made of a composite of two ceramic plates and a wooden plate in order to increase the utilization of the ceramic plate for cutting parts generated in the process of processing ceramic plates such as artificial marble, which is an expensive imported product in the prior art. It is an invention.

The present invention obtains a composite board made of a composite of two ceramic boards and a wood board, but overcomes the characteristics of a ceramic board that hardly shrinks and expands depending on external climatic conditions and wood, which shrinks and expands frequently depending on external climatic conditions. Accordingly, it is an object to provide a composite plate material that maintains a beautiful appearance in a state in which separation or bending does not occur.

The technical idea of this application is that a ceramic plate that hardly shrinks or expands depending on external climatic conditions and a composite plate that combines wood, which frequently shrinks and expands depending on external climatic conditions, causes separation or bending depending on external climatic conditions. It is a technology that aims to achieve the purpose of the invention by always providing a clean aesthetic feeling without any phenomenon or cracking. In particular, the combination of a top plate with an intermediate member sandwiched between two ceramic plates and a wood plate supporting the bottom of the top plate Disclosed is a manufacturing method for obtaining a composite board used for indoor furniture provided in a structure.

This application provides a ceramic plate processing process in which two ceramic plates constituting the upper plate of the composite plate are processed to a desired shape and size by a waterjet processing machine, and an intermediate material for the upper plate to be sandwiched between the two ceramic plates constituting the upper plate is formed on both outer edges. In order to form an inclined surface engaging sill and to form an intermediate material processing process for a top plate that is processed into a shape and size that covers the upper side of the side top of the ceramic plate, and to form a structure to prevent warping of the wooden board supporting the bottom of the top plate of the composite plate A wood board processing process of forming horizontal grooves and vertical grooves on the back side of the In the process of applying the adhesive together, the iron core is first inserted into the horizontal groove of the wooden board on which the coating process is completed, and the interpolation process is made to match the surface of the iron core and the bottom surface of the wood board. A press process that is laminated to form a composite plate material, is compressed using a press press, and aged in the range of 15 to 60 minutes, and the composite plate material on which the press process has been completed is taken out from the press press machine, and then used in a jigsaw or trimer mechanism, a grinder, and a grinder. Manufacturing of a composite board, characterized in that it is applied to obtain a composite board provided to form a structure in which a wood board is sandwiched between two ceramic boards, including a finishing process for taking corners using a selected tool or obtaining a desired composite board A method is disclosed.

The foamed adhesive used in the foamed adhesive application process in the manufacturing method of the present invention is an eco-friendly adhesive that does not contain components of benzene, toluene, and xylene, and Jowat 687.22 foamed adhesive is applied so that the foamed adhesive is used. The iron core used to be inserted is characterized in that the iron plate is bent to form a rectangular structure, arc welded, and applied so that the narrow side of the rectangular structure is inserted into the horizontal groove of the wooden board.

Therefore, in the present application, in the method of using a composite board provided so that a wood board is sandwiched between two ceramic boards, the two ceramic boards constituting the upper plate of the composite board are processed into a desired shape and standard by a waterjet processing machine. The intermediate material for the top plate to be sandwiched between the two ceramic plates constituting the process and the top plate forms an inclined surface engaging jaw on both outer edges, and the inclined surface engaging jaw covers the upper side of the ceramic plate. The wood plate processing process of forming horizontal grooves and vertical grooves on the back side of one side of the wood to form a distortion prevention structure of the wooden plate forming the lower plate of the composite plate and the upper surface of the lower plate of the wooden plate where the process is completed for ceramic plates and upper plates The foamed adhesive is applied to the part to be joined with the intermediate material, and the iron core is first inserted into the horizontal groove of the wooden board where the foamed adhesive is applied to the horizontal groove and the application process is completed, and the surface of the iron core and the floor surface of the wood board are interpolated After the process is made, the ceramic plate and the intermediate material for the top plate are laminated on the surface of the foamed adhesive to form a composite plate, compressed using a press press, and aged in the range of 15 to 60 minutes. After taking out, using a tool selected from a jigsaw, trimmer tool, grinder, and grinder to cut corners or obtain a composite board composed of a ceramic board and a wood board, including the finishing process to obtain a desired composite board, and obtain a composite board The purpose of the present application can be achieved by installing a bridge on the wooden board side of the and applying it as a top plate for indoor furniture for home or office.

In the manufacturing means of the composite board to which the present technology is applied, the foamed adhesive used in the foamed adhesive application process is an eco-friendly adhesive that does not contain benzene, toluene, and xylene. For example, 687.22 foamed adhesive from Jowat, Switzerland is used. It is desirable to have a composition that is suitable for this purpose, as volatile organic compounds (VOCs) contained in building materials and furniture are discharged into the room, causing red spots on the body for no reason, rhinitis, atopic dermatitis, urticaria, asthma, severe It is necessary to fundamentally block the phenomenon of sick house syndrome that causes various diseases such as headache and bronchitis.

Sick house syndrome is not a single medically established disease, but is defined as a general term for health damage caused by housing. In addition to benzene, toluene, chloroform, acetone, and formaldehyde are representative. In particular, when the concentration of formaldehyde in the adhesive is 120∼3,680 ug/cm3, it is reported that headache, nausea, and visual stimulation appear.

In addition, in the manufacturing method of the composite board to which the present technology is applied, the iron core used to be inserted into the wood board is bent to form a rectangular structure, arc welded, and the narrow side of the rectangular structure is inserted into the horizontal groove of the wood board. It is possible to increase the effect of preventing warpage of the composite plate.

Hereinafter, embodiments in which the technical configuration of the present application is specifically implemented will be described in detail with the drawings in the specific content column for carrying out the following invention.

The present technology provides the effect of increasing the utilization of the ceramic plate material for cutting parts generated in the processing process after cutting and using the ceramic plate material that comes in as an expensive imported product according to each use.

The final product made by the bonding process of the ceramic plate and wood plate, which has heterogeneous characteristics due to the characteristics of the ceramic plate, which hardly shrinks and expands depending on the climatic conditions outside the hospital, and the wood, which shrinks and expands frequently depending on the external climatic conditions. It has the effect of providing a composite plate that maintains a beautiful appearance in a state in which separation or warpage does not occur during the course of use.

1 is a process flow chart of a method for manufacturing a composite plate according to an embodiment of the present invention.
Figure 2 is a view showing one side plane or side of the embodiment for the description of the composite plate material manufacturing process according to the embodiment of the present invention.
Figure 3 is an application example of an embodiment in which the composite plate provided in the present invention is used in the form of a dining table in reality.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart showing a manufacturing process sequentially showing a manufacturing process of a composite plate according to an embodiment of the present invention, As a drawing showing the side, it is intended to explain the composite plate material provided by the present technology by applying it.

According to the present invention, ceramic plates such as artificial marble, which are expensive imported products, are cut and used according to the shape and color formed on the ceramic plate itself according to the desired use such as dining tables, reception tables, and desks. In order to obtain a composite plate material consisting of a combination of two ceramic plates and a wood plate for this purpose, the first step (S10) process in FIG. 1 is a composite plate 50 to be obtained here as shown in FIG. The top plate 10 composed of the plate 11a + the intermediate member 12 for the top plate + the ceramic plate 11b forms the top plate of the composite plate, and the top plate consisting of three unit products forms a solid coupling structure. It is a technique for obtaining the composite plate material 50 of the present application by forming a bonding structure in which the wooden board 20 is padded at the position.

The ceramic plate material used herein and the wood and the wood plate material 20, which are the intermediate materials 12 for the top plate, have different physical properties. After the product is completed, it has properties that there is little shrinkage or expansion, but wood has properties that continuously shrink or expand depending on the external temperature and humidity. Preemptive measures are needed to accommodate shrinkage and expansion to prevent warping.

As the preemptive measure, in the present application, the joint surface of the wood board 20 combined with the ceramic board has a width of 4 to 6 mm and a depth of 6 to 8 mm on the joint surface of the wood when the thickness of the wood is applied, for example, to a thickness of 12t. Grooves are formed on both ends of the wooden board, and a plurality of vertical grooves are formed inside the horizontal groove, so that the horizontal groove and vertical groove are applied to accommodate the shrinkage or expansion of the wood in a state where the ceramic plate and the wood are combined. In addition, the horizontal groove of the wood has an iron core embedded in it, and after leveling it with the floor surface, a method of combining it with a ceramic plate is applied to prevent the occurrence of bending in the long axis of the composite plate, which is prone to bending. In order to achieve the applied configuration, a configuration in which the iron core is embedded in the horizontal groove is required.

In order to achieve the object of the present invention, when you want to process a ceramic plate imported from a foreign country for a desired purpose, such as a dining table, a reception table, a desk, by the first process (S 10) shown in FIG. 1, a pattern or pattern engraved on the ceramic plate itself Ceramic plates cut using a waterjet processing machine are used as standards to achieve maximum use and amenity according to When two ceramic plates are generated, an intermediate material is added between the two ceramic plates to form a top plate, and a composite plate is obtained in which the bottom of the top plate is combined with a wooden plate. The embodiment will be described sequentially with reference to FIGS. 1 and 2 to obtain the target object.

As the first step (S10) in FIG. 1, in the upper plate processing step of the ceramic plate and wood (intermediate material), the two ceramic plates 11a and 11b are processed to the desired shape and size by a waterjet processing machine as shown in FIG. 2a. The ceramic plates 11a and 11b are processed in a shape in which round parts are formed on both sides, and the intermediate member 12 for the top plate to be sandwiched between the two ceramic plates 11a, 11b has a width * length * thickness of 200 cm * 30cm * In the state in which it is cut to a standard 2-5 mm thicker than the ceramic plates 11a and 11b, the upper flat surface 12a is formed 2 to 5 mm higher than the ceramic plates 11a and 11b, and the upper flat surface 12a ) to form a downward sloping surface 12b on both outer edges, forming a structure in which a locking jaw 12c is formed at the same height as the ceramic plate members 11a and 11b inside the lower end of the intermediate member, so that the ceramic plate members 11a and 11b on the side are When moving in the direction of the arrow toward the intermediate material 12, the first step (S 10) in the form of processing into a shape and standard in which the locking jaws 12c of the intermediate material cover the upper side surfaces of the ceramic plates 11a and 11b, as shown in Fig. 2b. ) of the ceramic plate material 11a, 11b and the intermediate material 12 for the upper plate may be processed.

Since the ceramic plate materials 11a and 11b and the intermediate material 12 for the top plate in the first step (S10) do not secure binding force by themselves, they are combined with the wood plate 20 to obtain a composite plate, the second step As (S 20), a process of forming a horizontal groove and a vertical groove on the joint surface of the wood board 20 is required as shown in FIG. 2C. For example, it has a thickness of 10 to 15 mm and a width * length 220 cm * 120 cm standard. When the cut wood board 20 is used to form the horizontal groove 22 and the vertical groove 23 on the joining surface of the wood board as shown in Figure 2c, the ceramic board (11a, 11b) and the intermediate material for the top plate in the state of Figure 2b ( By predicting the position line 21 when the upper plate made of 12) is combined with the wood plate 20, the horizontal groove 22 is formed at the central position of the center bottom of the ceramic plates 11a and 11b by 5 to 8 mm depth. to form a groove in

As a third step (S 30), the foamed adhesive 40 is applied to the bonding surface of the wood board 20 and the horizontal grooves 22 and the vertical grooves 23 as shown in FIG. 2D. Since the purpose is to provide a material that can be used, foamed adhesive may be applied to the portion to be joined with the wood board 20 and the ceramic board. For example, it is preferable to use a foaming adhesive such as the 687.22 product of the Swiss company Jowat, so as to exclude the concern of sick house syndrome. After the foamed adhesive 40 is partially applied to the groove 23 as well, the iron core 30 is inserted and interpolated into the horizontal groove 22 of the wood board 20, so that the process of the fourth step (S 40) is performed, the present application The iron core used in the technology is, for example, a galvania steel plate that is cut to a width of 24 mm and then bent three times to form a front width of 8 mm, a bottom width of 4 mm, a rear width of 8 mm, and an upper width of 4 mm to form a rectangular shape. An iron core of a rectangular structure is made in the form of arc welding at the end of the front width and the end of the upper width while forming the iron core of An iron core cut to a suitable length is prepared to be used, and with foamed adhesive applied to the horizontal groove of the joint surface of the wood board, the upper width of the rectangular shape is first interpolated so that it is located on the bottom surface of the horizontal groove, so that the bottom width is the width of the wood board. When the process of inserting an iron core to be parallel to the joint surface is performed, the bottom width 5mm and top width 5mm part that forms the long axis of the composite plate made of the finished product later prevents bending of the composite plate It is preferable to have a configuration in which the foamed adhesive 40 is first applied to the horizontal groove 22 and then the iron core 30 is fitted and installed.

As the next process, as the fifth step (S 50), as shown in Fig. 2f, the ceramic plates 11a, 11b and the intermediate material 12 for the top plate are raised along the arrow direction, and then the wooden plate bonding surface as shown in Fig. 2g. The pressing process of the sixth step (S60) is performed in a state where the ceramic plate materials 11a and 11b and the intermediate material 12 for the upper plate are placed on the upper part, and the press pressing process is performed in the range of 150 to 500 kilometer, 15 minutes to 60 minutes. The compression process and the aging process can be performed in the range of minutes. In the summer season, aging is performed at about 15 to 25 minutes, but in the winter season, aging time of about 30 to 60 minutes is required, and at this time, the Since the ceramic plate materials 11a and 11b on both sides of the raised side are lower than the intermediate material 12 for the upper plate, the ceramic plate material 11a, 11b is placed so that the height of the ceramic plate material 11a, 11b is the same as the intermediate material 12 height. The press press compression process can be performed by placing it on a press press machine, and when using the press press machine, the pressure conditions do not have a great influence, and the laminated wood and ceramic boards are simply fixed without moving. It can be said that the process

When the final product is taken out from the press after the sixth step of the press compression process is performed, the ceramic plate 11a at the upper position + the intermediate material for the upper plate 12 + the ceramic plate 11b at the bottom position and the wood plate at the bottom position as shown in FIG. 2G (20) can obtain a combined intermediate material, the seventh step (S 70) process and the finishing operation of the composite board (S 80) while cutting / peeling the outer edge of the wood board 20 along the outer edge of the upper board from the intermediate material This shows that the desired composite wave material (50) can be obtained.

The composite plate material 50 on which the press process is completed is taken out from the press press machine, and then using a tool selected from a jigsaw, trima mechanism, grinder, and grinder to take a corner or to obtain a desired composite plate material 2 Including a finishing process The composite plate 50 in which the wooden plate is sandwiched between the ceramic plates is used to promote the aesthetics of indoor furniture.

The composite plate 50 obtained through the above process is obtained by using a jigsaw having a fine saw blade shape according to the shape of the upper ceramic plate 11a, 11b to remove excess wood and corners using a grinder. After finishing, it can be used as a dining table, table, or desk through fine finishing work by grinding it with sand.

3 is a view showing a state of use in which the composite plate 50 for the upper table obtained through the manufacturing process as described above is applied in combination with the leg support shaft 27 for the dining table. In FIG. 3a, the composite plate 50 and the legs The configuration in which the support shaft 27 is coupled is shown in the form of a side view, and in FIG. 3b , the configuration in which the composite plate 50 and the leg support shaft 27 are coupled is shown in a perspective form from one side of the bottom surface, and in FIG. 3c The finished structure in which the plate material 50 and the leg support shaft 27 are combined is shown in a perspective form.

The composite plate 50 for the table presented in FIG. 3 has a ceramic plate material 11a + an intermediate material 12 for a top plate + a ceramic plate 11b as the top plate. It is a structure to prevent warping caused by a sense of difference between the ceramil board and the wood board when in use. When the composite plate material 50 is formed, and when it is desired to be connected to the table leg support shaft 27 in the mill of the wooden plate material 20 of the composite plate material, in step A as shown in FIG. Drilling a hole 24 into which a so-called pumice bolt 25, which has threads on both the inner periphery and the outer periphery, can be interpolated, rotates the pumice bolt 25 into the hole 24 in step B to interpolate, and step C When applied in a configuration for coupling with the leg support shaft 27 formed with the coupling protrusion 27a that forms the coupling with the Pumdegi bolt 25 by interposing the fixing bracket 26 to the outside of the Pumdegi bolt 25 in the case of a long axis type dining table If you want to use it for another purpose without the leg supporting shaft 27 for the leg, it shows an embodiment in which the leg supporting shaft 27 can be rotated in the opposite direction to be separated from the composite plate 50 and used.

10: top plate material 11: ceramic plate material
12: intermediate material 20: wood board
21: outline 22: horizontal groove
23: vertical groove 24: hole
25: pumice bolt 26: fixing bracket
27: leg support shaft 30: foamed adhesive
40: iron core 50: composite plate

Claims (5)

In the manufacturing method of a composite board used for indoor furniture provided as a combined structure of a top plate in which an intermediate member is sandwiched between two ceramic plates and a wood plate supporting the bottom of the top plate,
A ceramic plate processing process in which two ceramic plates constituting the upper plate of the composite plate are processed into a desired shape and size by a waterjet processing machine;
A top plate intermediate material processing process in which the intermediate material for the top plate to be sandwiched between the two ceramic plates constituting the top plate forms a sloping surface engaging jaw with both outer edges, and the inclined surface engaging sill covers the upper side of the ceramic plate in a shape and standard;
A wood board processing process of forming a horizontal groove and a vertical groove on the back side of one side of the wood to form a warping prevention structure of the wood board supporting the bottom of the upper board of the composite board;
A process in which the foamed adhesive is applied to the portion to be joined with the ceramic plate and the intermediate material for the upper plate toward the upper side of the wood board where the process is completed, and the foamed adhesive is applied to the horizontal groove and the base surface;
The iron core is first inserted into the horizontal groove of the wood board on which the application process is completed, and the interpolation process is made to match the surface of the iron core and the bottom surface of the wood board. A pressing process that is compressed using
Two ceramic plates including a finishing process of obtaining a desired composite plate or taking a corner using a jigsaw, trima mechanism, a grinder, and a grinder after taking out the composite plate on which the press process is completed A method for manufacturing a composite board, characterized in that to obtain a composite board provided to form a sandwiching structure between the wood board. According to claim 1,
The foamed adhesive used in the foamed adhesive application process is an eco-friendly adhesive that does not contain components of benzene, toluene, and xylene, and Jowat 687.22 foamed adhesive is applied so that the foamed adhesive is used. According to claim 1,
The iron core used to be inserted into the wood board is arc welded to form a rectangular structure by bending the steel sheet, and the narrow side of the rectangular structure is applied to fit into a horizontal groove of the wood board. In the method of using a composite board provided to form a fitting structure of a wood board between two ceramic boards,
A ceramic plate processing process in which two ceramic plates constituting the upper plate of the composite plate are processed into a desired shape and size by a waterjet processing machine;
The intermediate material for the top plate to be sandwiched between the two ceramic plates constituting the top plate forms a sloping surface engaging jaw with both outer edges, and the intermediate material for the top plate is processed into a shape and size that covers the upper side of the ceramic plate.
A wood board processing process of forming a horizontal groove and a vertical groove on the back side of one side of the wood to form a warping prevention structure of the wood board constituting the lower plate of the composite board;
A process in which the foamed adhesive is applied to the upper surface of the lower plate of the wooden board, where the above process is completed, to be joined to the ceramic plate and the intermediate material for the upper plate, and the foamed adhesive is applied to the horizontal groove;
The iron core is first inserted into the horizontal groove of the wood board on which the coating process is completed, and the interpolation process is made to match the surface of the iron core and the bottom surface of the wood board. A pressing process that is compressed using
After taking out the composite plate on which the press process has been completed, the composite plate is taken out from the press press machine, and then using a tool selected from a jigsaw, trimmer, grinder, and grinder to take a corner or to obtain a desired composite plate, including a finishing process for ceramic plate and wood A method of using a composite board, characterized in that it is applied to obtain a composite board made of a combination of boards and to use it as a top board for indoor furniture for home or office by installing a bridge on the wooden board side of the composite board. A top plate made by the manufacturing method of any one of claims 1 to 3 and a wooden plate is sandwiched between two ceramic plates, and a wooden plate is joined to the bottom of the top plate to form a structure of indoor furniture for home or office. Composite plate, characterized in that provided for use as a top plate.

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