Die and pressure forming method for manufacturing inorganic glue composite bamboo board

Abstract

The invention relates to a mold for manufacturing an inorganic glue composite bamboo board and a pressure forming method, and belongs to the technical field of building materials. The mold for manufacturing the inorganic glue composite bamboo board comprises a pressure applying platform, a board mold and a top cover, the pressure applying platform comprises a steel frame and a hydraulic device installed on the steel frame, and the board mold comprises a mold bottom plate and four side plates; bamboo ribs soaked with inorganic glue in advance are placed in the space defined by the four side plates, and a hydraulic device is used for conducting one-way press fit on the bamboo ribs. According to the inorganic glue composite bamboo board, a board mold is adopted, different bamboo rib arrangement schemes are matched, the processed and prepared inorganic glue composite bamboo board can be subjected to one-way pressurization and one-time forming according to the characteristics that the length and the width of a wallboard are large and the thickness is small, saw cutting machining is not needed, and splicing seams generated by splicing of multiple boards do not exist.

Description

Technical Field

[0001] The invention relates to the technical field of building materials, and in particular to a mold for making an inorganic glue composite bamboo board and a pressure molding method. Background Art

[0002] Bamboo and wood are unique among all building materials that can grow naturally, are sustainable and environmentally friendly green materials. Compared with wood, bamboo can be used as a material in four years and is stronger than wood, so bamboo utilization is more important. In addition, bamboo buildings have very good earthquake resistance due to their light weight and high strength.

[0003] Traditional construction mainly uses steel bars, concrete and clay bricks as materials. The preparation of these materials not only consumes a large amount of non-renewable resources such as sand, stone and clay, but also consumes a lot of energy and emits carbon dioxide, which runs counter to the goal of green environmental protection. It is imperative to rationally use bamboo resources to replace traditional building materials.

[0004] In the patents with application numbers 202010239326.5 and 202010239335.4, it is proposed that inorganic glue produced by components such as magnesium oxide, magnesium sulfate heptahydrate, silica fume, silica sol, lithium silicate, sodium silicate, citric acid, microcrystalline cellulose, nanocellulose whiskers, aminotrimethylenephosphonic acid and water can be used to prepare bamboo and wood building materials. Patents with application numbers 202210575079.5, 202310073807.7 and 202310076789.8 disclose methods for preparing bamboo and wood components using the above-mentioned inorganic glue and bamboo. The components made by this method have high strength and fire resistance and corrosion resistance. To prepare bamboo composite components with the inorganic glue, the bamboo needs to be first debonded, then the inorganic glue is sprayed, and the bamboo is placed in layers in a steel formwork for bidirectional pressurization with a pressure of up to 3MPa, and finally cured and demolded. Most of the existing processing molds are steel templates with a length of 3m and a cross-section of 0.4m×0.4m. The formed composite components must be sawed accordingly to process the required beams, columns, etc. However, due to the limited width of the mold (only 0.4m) and the limitation of the compression equipment, when assembling wall panel components, multiple 0.4m wide boards need to be assembled, the joints are difficult to handle, and can only be assembled into one-way boards along the direction of column reinforcement. If a wider board is made, a compression device with greater downward pressure is required, which undoubtedly increases the requirements for the equipment. The patent with application number 202210909124.6 proposes the structure of an inorganic glue two-way wallboard, but fails to propose a mold with a pressurized molding function, and no extension method is proposed for wall panel components whose length and width are greater than the length of the bamboo. In addition, the bamboo loaded into the mold before pressurization is loose, and the existing molds are mostly estimated by visual inspection to add bamboo. When pressurized, the bamboo that exceeds the top surface of the mold is easy to scatter outside the mold. Therefore, it is very necessary to develop a pressurized template device and a process method that is suitable for various board and wall size models and can overcome the above process defects. Summary of the invention

[0005] In view of the technical problems such as difficulty in splicing, only one-way boards can be made, and process defects when preparing large-width bamboo boards, the present invention provides a mold and a press forming method for making inorganic glue composite bamboo boards to solve the above problems. The present invention adopts a board mold, combined with different bamboo reinforcement layout schemes, and the inorganic glue composite bamboo board prepared by processing can be formed in one time by one-way press forming according to the characteristics of large length and width of wallboard and small thickness, without saw cutting and processing, and without joints caused by splicing multiple boards.

[0006] In the first aspect, the present invention provides a mold for making inorganic glue composite bamboo board, including a pressure platform, a board mold and a top cover; the pressure platform includes a steel frame and a hydraulic device installed on the steel frame, the steel frame includes four columns, two parallel upper beams welded to the top of the column and two parallel lower beams welded to the bottom of the column; two secondary beams are welded in the middle of the two upper beams; the hydraulic device is installed on the two secondary beams; a platform bottom plate is provided at the bottom of the pressure platform; a plurality of bolt holes arranged horizontally and vertically are provided on the platform bottom plate; bolts are installed in the bolt holes, and the bolts are used to fix the side guards; the distances between the bolt holes are different, which is prepared for processing boards of different lengths and widths. The side guard fixed by bolts is the support of the side plate in the board mold, and has a certain strength and rigidity.

[0007] The sheet metal mold includes a mold base plate and four side plates; the mold base plate is fixed in the space surrounded by four side blocks, and the side plates are placed on the mold base plate and abut against the side blocks; every two side plates are connected by a rotating shaft; a groove parallel to the length direction of the side plate is opened on the top of the side plate; a movable baffle is installed in the groove; a spring is installed at the bottom of the groove, and the spring abuts against the movable baffle; after the movable baffle moves into the groove, the top is flush with the top of the side plate; the overhanging height of the movable baffle is 1 / 10~1 / 8 of the height of the side plate; the top cover is placed on the movable baffle, and the edge covers the movable baffle.

[0008] Furthermore, a cutting edge is provided at the outer edge of the groove of the side plate, serving as a guiding device during the pressing process of the top cover.

[0009] Furthermore, multiple clamps are provided on the outer side of the side plate, and hooks are provided on the edge of the top cover to cooperate with the clamps. When the top cover is pressed down, the hooks can be fixed on the clamps to maintain the pressure level in the template. When the plate in the curing template is fixed and formed, the hooks are removed to achieve unloading and demoulding.

[0010] Furthermore, reinforcing ribs are welded on the upper surface of the top cover; there are multiple reinforcing ribs, which are staggered horizontally and vertically; and a force-bearing plate is welded on the center of the reinforcing ribs on the top cover.

[0011] Furthermore, a V-groove is provided at the edge of the lower surface of the top cover, and the V-groove is used in conjunction with the blade angle. When the top cover is pressed down, the blade angle provided at the outer edge of the groove of the side plate is inserted into the V-groove to achieve precise positioning of the top cover and the plate mold.

[0012] In a second aspect, the present invention also provides a pressure forming method for making an inorganic adhesive composite bamboo board using the above mold, comprising the following steps: (1) According to the size of the processing plate, select the position of the bolt holes on the platform bottom plate and fix the side guard with bolts; (2) Install the side panel to the inside of the side guard; (3) Bamboo reinforcements are laid out layer by layer in the board mold according to the direction of bamboo reinforcement laying. The bamboo reinforcements are pre-infiltrated with inorganic glue; if bamboo reinforcement joints are required, they are set according to regulations; if wire threading tube boxes and junction boxes are required, they are laid out according to regulations; finally, the top row of bamboo reinforcements is filled until it is flush with the top of the movable baffle; (4) Lift the top cover above the plate mold, align it, and use a jack to apply pressure to the top cover; (5) Remove the side guards and move the mold and top cover to the curing room; cure at 30°C for 20 to 24 hours, remove the top cover, rotate the side panels to take the formed inorganic glue composite bamboo board out of the mold, and continue curing for 150 hours to obtain the inorganic glue composite bamboo board.

[0013] Furthermore, when the inorganic adhesive composite bamboo board is a one-way board, the bamboo reinforcements are arranged in the same direction in the template. Generally speaking, the arrangement direction of the bamboo reinforcements is the main force direction of the one-way board.

[0014] Furthermore, when the inorganic adhesive composite bamboo board is a two-way board, the nth layer of bamboo reinforcement and the n+1th layer of bamboo reinforcement in the template are arranged perpendicularly, which is a two-way board, wherein n is a positive integer. The board can be subjected to forces in two mutually perpendicular directions.

[0015] Furthermore, when the side length of the inorganic adhesive composite bamboo board is greater than the length of the bamboo reinforcement, the bamboo reinforcement needs to be lengthened. To ensure reliable transmission of force on the bamboo reinforcement at the joint, the top ends of adjacent bamboo reinforcements must be staggered.

[0016] Furthermore, when making a board with overlapping bamboo bars, the following method is used: The joints of the first row of bamboo bars in the 3n-2th layer (n is a positive integer) are at 1 / 4 of the span from the end of the board, the joints of the second row of bamboo bars are at 1 / 2 of the span from the end of the board, and the joints of the third row of bamboo bars are at 3 / 4 of the span from the end of the board. Starting from the fourth row, the joint order of the first three rows is repeated; The joints of the first row of bamboo bars in the 3n-1th layer (n is a positive integer) are at 1 / 2 of the span from the end of the board, the joints of the second row of bamboo bars are at 3 / 4 of the span from the end of the board, and the joints of the third row of bamboo bars are at 1 / 4 of the span from the end of the board. Starting from the fourth row, the joint order of the first three rows is repeated; The bamboo reinforcement joints in the first row of the 3nth (n is a positive integer) layer are at 3 / 4 of the span from the end of the board, the bamboo reinforcement joints in the second row are at 1 / 4 of the span from the end of the board, and the bamboo reinforcement joints in the third row are at 1 / 2 of the span from the end of the board. Starting from the fourth row, the order of the joints in the first three rows is repeated.

[0017] When preparing one-way slabs, the odd-numbered layers and the even-numbered layers are arranged in the same direction; when preparing two-way slabs, the odd-numbered layers and the even-numbered layers are arranged perpendicular to each other.

[0018] In this way, the joint position is not only more than 1 / 4 span between adjacent bamboo reinforcement joints in each layer, but also more than 1 / 4 span between adjacent layers, which ensures the reasonable transmission of bamboo reinforcement force.

[0019] Furthermore, when the inorganic adhesive composite bamboo board needs to be equipped with a wire threading tube, the buried wire threading tube is parallel to the direction of the bamboo reinforcement, the wire threading tube is provided with a bamboo reinforcement covering layer at least one layer thick from the outer surface of the board, and the wire threading tube can withstand a pressure of 3MPa.

[0020] The beneficial effects of the present invention are: (1) The present invention provides a mold for unidirectional pressure application and side blocks to withstand lateral pressure based on the characteristics of the wallboard, which is larger in length and width but smaller in thickness. The mold is simpler in structure than the conventional inorganic adhesive mold for bidirectional loading. After loading, the mold is formed in one step, and there is no need for sawing and processing, and there is no seam caused by splicing multiple panels.

[0021] (2) The present invention not only prevents the bamboo reinforcement material that protrudes from the mold from scattering outward by setting a movable baffle, but also, by setting the ratio of the baffle height to the mold height, only needs to compress the top cover to be flush with the top surface of the template to obtain a molded inorganic adhesive composite bamboo board with an appropriate compression ratio (90%), without the need to control the pressure value to 3MPa, which is simpler than the traditional pressure control method.

[0022] (3) The present invention can also utilize hooks and clamps to maintain the pressure inside the mold, and utilize the rotating shaft between the side guards to facilitate the assembly and removal of the template, thereby facilitating the construction process.

[0023] (4) The present invention provides multiple rows of bolt holes on the bottom plate of the platform, which can fix molds of various models, thereby increasing the versatility of the platform.

[0024] (5) When manufacturing a board with overlapping bamboo ribs, the present invention can achieve bamboo rib extension by reasonably setting the joint position and can make full use of the cut bamboo rib scraps. A threading tube is set in the board along the parallel direction of the bamboo ribs, which reduces the influence of the tube on the integrity of the bamboo ribs and maintains the beautiful bamboo grain appearance of the bamboo composite board. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a structural schematic diagram of the pressurized platform of the present invention.

[0027] Figure 2 It is a front view of the pressurizing platform of the present invention.

[0028] Figure 3 It is a schematic diagram of the structure after the side guard is installed in the present invention.

[0029] Figure 4 It is a front view of the present invention after the side guard is installed.

[0030] Figure 5 It is a structural schematic diagram of the plate mold of the present invention.

[0031] Figure 6 It is a structural schematic diagram of the plate mold of the present invention placed on a pressure platform.

[0032] Figure 7 It is a plan view of the plate mold of the present invention placed on a pressurizing platform.

[0033] Figure 8 It is a plan view of a board mold of the present invention filled with bamboo bars sprayed with inorganic glue.

[0034] Fig. 9 It is a structural schematic diagram of the top cover of the present invention.

[0035] Fig.10 It is a plan view of the top cover of the present invention after being placed on the plate mold.

[0036] Fig.11 It is a structural schematic diagram of the hydraulic device of the pressurizing platform of the present invention pressurizing the top cover.

[0037] Fig.12 It is a front view of the hydraulic device of the pressurizing platform of the present invention pressurizing the top cover.

[0038] In the figure, 1-upper beam, 2-column, 3-lower beam, 4-platform bottom plate, 5-bolt hole, 6-hydraulic device, 7-secondary beam, 8-side block, 9-top cover, 10-bolt, 11-side plate, 12-movable baffle, 13-mold bottom plate, 14-clamp, 15-rotating shaft, 16-blade angle, 17-spring, 18-bamboo rib, 19-reinforcement rib, 20-hook, 21-load plate, 22-V-groove. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0040] Example 1 like Figure 1 to Figure 6As shown, a mold for making inorganic glue composite bamboo board comprises a pressure platform, a board mold and a top cover 9; the pressure platform comprises a steel frame and a hydraulic device 6 installed on the steel frame, the steel frame comprises four columns 2, two parallel upper beams 1 welded to the top ends of the columns 2 and two parallel lower beams 3 welded to the bottom ends of the columns 2; two secondary beams 7 are welded at the middle positions of the two upper beams; the hydraulic device 6 is installed on the two secondary beams 7; a platform bottom plate 4 is provided at the bottom of the pressure platform; a plurality of bolt holes 5 arranged horizontally and vertically are provided on the platform bottom plate 4; bolts 10 are installed in the bolt holes 5, and the bolts 10 are used to fix the side guards 8; the board mold comprises a mold bottom plate 13 and four side panels 11; the mold bottom plate 13 is fixed in the space surrounded by the four side blocks 8, and the side panels 11 are placed on the mold bottom plate 13 and abut against the side blocks 8; every two side panels 11 are connected by a rotating shaft 15; a groove parallel to the length direction of the side panels 11 is opened on the top of the side panels 11; a movable baffle 12 is installed in the groove; a spring 17 is installed at the bottom of the groove, and the spring 17 abuts against the movable baffle 12; after the movable baffle 12 moves into the groove, the top is flush with the top of the side panel 11; the overhanging height of the movable baffle 12 is 1 / 10~1 / 8 of the height of the side panel 11; the top cover 9 is placed on the movable baffle 12, and the edge covers the movable baffle 12.

[0041] In some embodiments, Figure 7 As shown, a cutting edge 16 is provided at the outer edge of the groove of the side plate 11 to serve as a guide device when the top cover 9 is pressed down.

[0042] In some embodiments, Figure 5 As shown, a plurality of clamps 14 are provided on the outer side of the side plate 11; Fig. 9 As shown, the edge of the top cover 9 is provided with a hook 20 used in conjunction with the clamp; Fig.11 As shown, the hook 20 can be fixed on the clamp 14 when the top cover 9 is pressed down, so as to maintain the pressure level in the template. After the plate in the curing template is fixed and formed, the hook is removed to realize unloading and demoulding.

[0043] In some embodiments, Fig. 9 As shown, a reinforcing rib 19 is welded on the upper surface of the top cover 9; there are multiple reinforcing ribs 19, which are staggered horizontally and vertically.

[0044] In some embodiments, Fig.10 As shown, a V-shaped groove 22 is provided at the edge of the lower surface of the top cover 9. Fig.12 As shown, the V-shaped groove 22 is used in conjunction with the blade corner 16. When the top cover 9 is pressed down, the blade corner 16 provided at the outer edge of the groove of the side plate 11 is inserted into the V-shaped groove 22 to achieve precise positioning of the top cover 9 and the plate mold.

[0045] Example 2 A method for making an inorganic adhesive composite bamboo board (one-way board) using the mold of Example 1 comprises the following steps: (1) According to the size of the plate to be processed, select the position of the bolt holes on the platform bottom plate and fix the side guard with bolts; (2) Install the side panel to the inside of the side guard; (3) The bamboo ribs are evenly arranged in the same direction in the board mold, and the bamboo ribs are arranged layer by layer. The bamboo ribs are pre-infiltrated with inorganic glue; (4) Lift the top cover above the plate mold, align it, and use a jack to apply pressure to the top cover; (5) Remove the side guards and move the mold and top cover to the curing room; cure at 30°C for 20 to 24 hours, remove the top cover, rotate the side panels to take the formed inorganic glue composite bamboo board out of the mold, and continue curing for 150 hours to obtain the inorganic glue composite bamboo board (one-way board).

[0046] Example 3 A method for making an inorganic adhesive composite bamboo board (two-way board) using the mold of Example 1 comprises the following steps: (1) According to the size of the plate to be processed, select the position of the bolt holes on the platform bottom plate and fix the side guard with bolts; (2) Install the side panel to the inside of the side guard; (3) Arrange the nth layer of bamboo reinforcement and the n+1th layer of bamboo reinforcement in the template vertically in the board mold, and arrange the bamboo reinforcement layer by layer. The bamboo reinforcement is pre-infiltrated with inorganic glue; (4) Lift the top cover above the plate mold, align it, and use a jack to apply pressure to the top cover; (5) Remove the side guards and move the mold and top cover to the curing room; cure at 30°C for 20 to 24 hours, remove the top cover, rotate the side panels to take the formed inorganic glue composite bamboo board out of the mold, and continue curing for 150 hours to obtain the inorganic glue composite bamboo board (two-way board).

[0047] Example 4 A method for making a board (one-way board) with overlapping bamboo bars using the mold of Example 1 comprises the following steps: (1) According to the size of the plate to be processed, select the position of the bolt holes on the platform bottom plate and fix the side guard with bolts; (2) Install the side panel to the inside of the side guard; (3) In the board mold, the bamboo rib joints of the first row of the first layer are at 1 / 4 span from the board end, the bamboo rib joints of the second row are at 1 / 2 span from the board end, and the bamboo rib joints of the third row are at 3 / 4 span from the board end. The order of the first three rows of joints is repeated from the fourth row. The second layer is arranged in the same direction as the first layer, the bamboo rib joints of the first row are at 1 / 2 span from the board end, the bamboo rib joints of the second row are at 3 / 4 span from the board end, and the bamboo rib joints of the third row are at 1 / 4 span from the board end. The order of the first three rows of joints is repeated from the fourth row. The third layer is arranged in the same direction as the second layer, the bamboo rib joints of the first row are at 3 / 4 span from the board end, the bamboo rib joints of the second row are at 1 / 4 span from the board end, and the bamboo rib joints of the third row are at 1 / 2 span from the board end. The order of the first three rows of joints is repeated from the fourth row. Subsequently, the bamboo ribs are arranged layer by layer according to the previous order, and the bamboo ribs are pre-impregnated with inorganic glue; (4) Lift the top cover above the plate mold, align it, and use a jack to apply pressure to the top cover; (5) Remove the side guards and move the mold and top cover to the curing room; cure at 30°C for 20 to 24 hours, remove the top cover, rotate the side panels to take the formed inorganic glue composite bamboo board out of the mold, and continue curing for 150 hours to obtain the inorganic glue composite bamboo board (two-way board).

[0048] Furthermore, when the inorganic adhesive composite bamboo board needs to be equipped with a wire threading tube, the buried wire threading tube should be parallel to the direction of the bamboo reinforcement, the wire threading tube should be provided with a bamboo reinforcement covering layer at least one layer thick from the outer surface of the board, and the wire threading tube needs to be able to withstand a pressure of 3MPa.

[0049] Although the present invention has been described in detail with reference to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A mold for making an inorganic glue composite bamboo board, comprising a pressure platform, a board mold and a top cover (9); characterized in that: The pressure platform comprises a steel frame and a hydraulic device (6) mounted on the steel frame, wherein the steel frame comprises four columns (2), two parallel upper beams (1) welded to the top ends of the columns (2), and two parallel lower beams (3) welded to the bottom ends of the columns (2); two secondary beams (7) are welded between the two upper beams; the hydraulic device (6) is mounted on the two secondary beams (7); a platform bottom plate (4) is provided at the bottom of the pressure platform; a plurality of bolt holes (5) arranged transversely and longitudinally are provided on the platform bottom plate (4); bolts (10) are installed in the bolt holes (5), and the bolts (10) are used to fix the side guards (8); The plate mold comprises a mold bottom plate (13) and four side plates (11); the mold bottom plate (13) is fixed in a space surrounded by four side blocks (8); the side plates (11) are placed on the mold bottom plate (13) and abut against the side blocks (8); every two side plates (11) are connected via a rotating shaft (15); a groove parallel to the length direction of the side plates (11) is opened at the top of the side plates (11); a movable baffle (12) is installed in the groove; a spring (17) is installed at the bottom of the groove, and the spring (17) abuts against the movable baffle (12); after the movable baffle (12) moves into the groove, the top is flush with the top of the side plate (11); the extended height of the movable baffle (12) is one tenth to one eighth of the height of the side plate (11); the top cover (9) is placed on the movable baffle (12), and the edge covers the movable baffle (12).

2. The mold according to claim 1, characterized in that A cutting edge (16) is provided at the outer edge of the groove of the side plate (11) to serve as a guide device during the pressing process of the top cover (9).

3. The mold according to claim 1, characterized in that A plurality of clamping heads (14) are provided on the outer side of the side plate (11), and a hook (20) for use with the clamping heads is provided on the edge of the top cover (9).

4. The mold according to claim 1, characterized in that A reinforcing rib (19) is welded to the upper surface of the top cover (9); the reinforcing ribs (19) are multiple and arranged in a staggered manner horizontally and vertically; and a force-bearing plate (21) is welded to the center of the reinforcing rib (19) located on the top cover (9).

5. The mold according to claim 1, characterized in that A V-shaped groove (22) is provided at the edge of the lower surface of the top cover (9), and the V-shaped groove (22) is used in conjunction with the blade corner (16). When the top cover (9) is pressed down, the blade corner (16) provided at the outer edge of the groove of the side plate (11) is inserted into the V-shaped groove (22), thereby achieving accurate positioning of the top cover (9) and the plate mold.

6. A pressure forming method for making an inorganic adhesive composite bamboo board using the mold as claimed in claim 1, characterized in that: The following steps are involved: (1) According to the size of the processing plate, select the position of the bolt holes on the platform bottom plate and fix the side guard with bolts; (2) Install the side panel to the inside of the side guard; (3) Bamboo reinforcements are laid out layer by layer in the board mold according to the direction of bamboo reinforcement laying. The bamboo reinforcements are pre-infiltrated with inorganic glue; if bamboo reinforcement joints are required, they are set according to regulations; if wire threading tube boxes and junction boxes are required, they are laid out according to regulations; finally, the top row of bamboo reinforcements is filled until it is flush with the top of the movable baffle; (4) Lift the top cover above the plate mold, align it, and use a jack to apply pressure to the top cover; (5) Remove the side guard and move the mold and top cover into the curing room; After curing at 30°C for 20-24 hours, the top cover is removed, and the side panels are rotated to take the formed inorganic adhesive composite bamboo board out of the mold, and the inorganic adhesive composite bamboo board is further cured for 150 hours to obtain the inorganic adhesive composite bamboo board.

7. The press forming method according to claim 6, characterized in that: When the inorganic adhesive composite bamboo board is a one-way board, the bamboo reinforcements are evenly arranged in the same direction in the template.

8. The press forming method according to claim 6, characterized in that: When the inorganic adhesive composite bamboo board is a two-way board, the nth layer of bamboo reinforcement and the n+1th layer of bamboo reinforcement in the template are arranged vertically, wherein n is a positive integer.

9. The press forming method according to claim 6, wherein: When the side length of the inorganic glue composite bamboo board is greater than the length of the bamboo ribs, the bamboo ribs need to be extended using the following method: The first row of bamboo reinforcement joints in the 3n-2 layer is at 1 / 4 of the span from the board end, the second row of bamboo reinforcement joints is at 1 / 2 of the span from the board end, and the third row of bamboo reinforcement joints is at 3 / 4 of the span from the board end; starting from the fourth row, the order of the first three rows of joints is repeated; The first row of bamboo reinforcement joints in the 3n-1 layer is at 1 / 2 span from the board end, the second row of bamboo reinforcement joints is at 3 / 4 span from the board end, and the third row of bamboo reinforcement joints is at 1 / 4 span from the board end. Starting from the fourth row, the order of the first three rows of joints is repeated; The first row of bamboo rib joints in the 3nth layer is at 3 / 4 of the span from the board end, the second row of bamboo rib joints is at 1 / 4 of the span from the board end, and the third row of bamboo rib joints is at 1 / 2 of the span from the board end. The order of the first three rows of joints is repeated from the fourth row onwards. Wherein n is a positive integer; when preparing a one-way slab, the odd-numbered layers and the even-numbered layers are arranged in the same direction; when preparing a two-way slab, the odd-numbered layers and the even-numbered layers are arranged perpendicularly.

10. The press forming method according to claim 6, wherein: When the inorganic adhesive composite bamboo board needs to be equipped with a threading tube, the buried threading tube is parallel to the direction of the bamboo reinforcement, the threading tube is provided with a bamboo reinforcement covering layer at least one layer thick from the outer surface of the board, and the threading tube can withstand a pressure of 3MPa.

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