Acid and alkali corrosion resistant high-strength composite board for showcase

Abstract

The invention relates to the technical field of plates, and discloses an acid and alkali corrosion resistant high-strength composite plate for a showcase, which solves the problems of low strength and poor fire resistance and acid and alkali corrosion resistance of the existing composite plate for the showcase, and comprises a composite plate body, the composite board body is composed of a combined high-strength core board, an aluminum alloy frame, a fireproof protective layer, an acid and alkali corrosion resistant layer and a high-density polyethylene surface layer, the side edge of the combined high-strength core board is coated with the aluminum alloy frame, the combined high-strength core board and the aluminum alloy frame are coated with the fireproof protective layer, the fireproof protective layer is coated with the acid and alkali corrosion resistant layer, and the high-density polyethylene surface layer is coated with the high-density polyethylene surface layer. The high-density polyethylene surface layer wraps the acid and alkali corrosion resistant layer, and the combined high-strength core plate, the aluminum alloy frame, the fire-resistant protective layer, the acid and alkali corrosion resistant layer and the high-density polyethylene surface layer are bonded and connected through resin adhesive layers; according to the composite board for the showcase, the overall strength can be improved, and meanwhile the composite board has good fire resistance and acid-base corrosion resistance.

Description

Technical Field

[0001] The invention belongs to the technical field of plates, and in particular relates to a high-strength composite plate for display cabinets that is resistant to acid and alkali corrosion. Background Art

[0002] A display cabinet is a cabinet used for displaying items. A display cabinet is usually made up of multiple panels. Since most of the items displayed in the display cabinet are relatively valuable, the overall strength of the display cabinet is particularly important. By improving the strength, better protection of the displayed items can be achieved. However, the existing display cabinet panels usually have a relatively simple structure, and it is difficult to effectively improve the strength. In addition, the existing display cabinet panels have poor fire resistance and acid and alkali corrosion resistance. When the display cabinet is used to display special items, the display cabinet may be damaged. In addition, when a fire occurs, it is difficult to achieve fire protection for the displayed items, and the safety and stability of use are not good. Therefore, the present application proposes a high-strength composite panel for display cabinets that is resistant to acid and alkali corrosion. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a high-strength composite panel for display cabinets that is resistant to acid and alkali corrosion, which effectively solves the problems of low strength, poor fire resistance and acid and alkali corrosion resistance of the existing composite panels for display cabinets.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-strength composite panel for display cabinets that is resistant to acid and alkali corrosion, comprising a composite panel body, wherein the composite panel body is composed of a combined high-strength core panel, an aluminum alloy frame, a fire-resistant protective layer, an acid- and alkali-resistant layer, and a high-density polyethylene surface layer, wherein the aluminum alloy frame is coated on the side of the combined high-strength core panel, the fire-resistant protective layer is coated on the combined high-strength core panel and the aluminum alloy frame, the acid- and alkali-resistant layer is coated on the fire-resistant protective layer, and the high-density polyethylene surface layer is coated on the acid- and alkali-resistant layer, and the combined high-strength core panel, the aluminum alloy frame, the fire-resistant protective layer, the acid- and alkali-resistant layer, and the high-density polyethylene surface layer are all bonded and connected by a resin adhesive layer;

[0005] Among them, the combined high-strength core panel is composed of a wooden base plate one, a wooden base plate two, a reinforcement layer one, a reinforcement layer two and a reinforcement layer three. The reinforcement layer one is connected to the bottom end of the wooden base plate one, the reinforcement layer two is connected between the wooden base plate one and the wooden base plate two, and the reinforcement layer three is connected to the top end of the wooden base plate two. The wooden base plate one, the wooden base plate two, the reinforcement layer one, the reinforcement layer two and the reinforcement layer three are all bonded and connected by a resin glue layer.

[0006] Preferably, a plurality of transverse through holes are opened inside the wooden base plate one, and transverse metal reinforcing ribs are interspersed inside the transverse through holes; a plurality of longitudinal through holes are opened inside the wooden base plate two, and a plurality of longitudinal metal reinforcing ribs are interspersed inside the longitudinal through holes; chemical adhesives are filled between the transverse metal reinforcing ribs and the transverse through holes, and between the longitudinal metal reinforcing ribs and the longitudinal through holes; the transverse metal reinforcing ribs and the longitudinal metal reinforcing ribs are fixedly connected to the aluminum alloy frame by a plurality of bolts.

[0007] Preferably, a plurality of auxiliary reinforcement supports 1 matching the transverse metal reinforcement ribs and a plurality of auxiliary reinforcement supports 2 matching the longitudinal metal reinforcement ribs are interspersed inside the combined high-strength core plate.

[0008] Preferably, the combined high-strength core plate is provided with a plurality of mounting through holes 1 that match the auxiliary reinforcement support 1 and a plurality of mounting through holes 2 that match the auxiliary reinforcement support 2, the auxiliary reinforcement support 1 is provided with a limiting through hole 1 that matches the transverse metal reinforcement rib, and the auxiliary reinforcement support 2 is provided with a limiting through hole 2 that matches the longitudinal metal reinforcement rib.

[0009] Preferably, the sides of the transverse metal reinforcement ribs and the longitudinal metal reinforcement ribs are provided with a plurality of arc-shaped grooves, and arc-shaped anti-slip ribs are fixedly arranged inside the arc-shaped grooves.

[0010] Preferably, the transverse metal reinforcement ribs and the longitudinal metal reinforcement ribs are provided with weight-reducing through holes inside, and clamping grooves are provided at both ends of the transverse metal reinforcement ribs and the longitudinal metal reinforcement ribs. Bolt mounting sleeves matching the bolts are provided at both ends of the weight-reducing through holes, and a plurality of arc-shaped clamping plates matching the clamping grooves are fixedly provided at one end of the side of the bolt mounting sleeves. The arc-shaped clamping plates are installed inside the clamping grooves and connected to the clamping grooves by a plurality of screws.

[0011] Preferably, the reinforcement layer 1, the reinforcement layer 2 and the reinforcement layer 3 are all woven from a plurality of composite reinforcement fiber bundles, and the reinforcement layer 1, the reinforcement layer 2 and the reinforcement layer 3 are all dense mesh structures.

[0012] Preferably, the composite reinforcing fiber bundle is formed by twisting carbon fiber, silicon carbide fiber, graphite fiber, metal fiber and heterocyclic polyamide fiber.

[0013] Preferably, the fire-resistant protective layer is composed of a first fire-resistant base layer and a second fire-resistant base layer, the first fire-resistant base layer and the second fire-resistant base layer are staggered connection structures, the first fire-resistant base layer and the second fire-resistant base layer are both woven from a plurality of transverse strip woven belts and a plurality of longitudinal strip woven belts, and the transverse strip woven belts and the longitudinal strip woven belts are both woven from polyphenylene sulfide fibers, aromatic polyamide surface chemically treated fibers, polyacrylonitrile pre-oxidized fibers and basalt fibers.

[0014] Preferably, the acid- and alkali-resistant layer is composed of an anti-corrosion braided layer and a surface coating layer, the surface coating layer is sprayed on the outer surface of the anti-corrosion braided layer, the anti-corrosion braided layer is composed of a plurality of thickened braided belt bodies 1 and a plurality of thickened braided belt bodies 2, and the thickened braided belt bodies 1 and 2 are both woven from polytetrafluoroethylene fibers, polyvinylidene chloride fibers, aromatic sulfone fibers and ethylene-chlorotrifluoroethylene fibers.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) During operation, by providing a combined high-strength core plate consisting of a wood base plate 1, a wood base plate 2, a reinforcement layer 1, a reinforcement layer 2 and a reinforcement layer 3, its compression resistance, bending resistance and tensile resistance can be improved, thereby improving its overall strength. By providing transverse metal reinforcement ribs, longitudinal metal reinforcement ribs, auxiliary reinforcement support 1, auxiliary reinforcement support 2 and a composite reinforcement fiber bundle consisting of carbon fiber, silicon carbide fiber, graphite fiber, metal fiber and heterocyclic polyamide fiber, its strength can be further improved;

[0017] (2) By providing transverse strip woven belts and longitudinal strip woven belts composed of polyphenylene sulfide fiber, aromatic polyamide surface chemically treated fiber, polyacrylonitrile pre-oxidized fiber and basalt fiber, the fire retardant performance of the composite board can be improved, thereby achieving safe protection of the exhibits inside the display cabinet;

[0018] (3) By providing a thickened braided belt body 1 and a thickened braided belt body 2 woven from polytetrafluoroethylene fiber, polyvinylidene chloride fiber, aromatic sulfone fiber and ethylene-trifluorochloroethylene fiber, the acid and alkali corrosion resistance of the composite board can be improved, thereby improving the adaptability of the display cabinet, which can be used for displaying different types of items and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached picture:

[0021] Figure 1 This is a schematic diagram of the structure of a high-strength composite board for display cabinets that is resistant to acid and alkali corrosion according to the present invention;

[0022] Figure 2 It is a partial cross-sectional view of the high-strength composite board for display cabinets resistant to acid and alkali corrosion of the present invention;

[0023] Figure 3 It is a partial exploded view of the high-strength composite board for display cabinets resistant to acid and alkali corrosion of the present invention;

[0024] Figure 4 It is a schematic diagram of the partial structure of the high-strength composite board for display cabinets resistant to acid and alkali corrosion of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the auxiliary reinforcement support 1 and the auxiliary reinforcement support 2 of the present invention;

[0026] Figure 6 This is a schematic diagram of the longitudinal metal reinforcement structure of the present invention;

[0027] Figure 7 For the present invention Figure 6 A partial enlarged view of

[0028] Figure 8 This is a structural schematic diagram of a reinforcement layer of the present invention;

[0029] Fig. 9 This is a schematic diagram of the structure of the composite reinforced fiber bundle of the present invention;

[0030] Fig.10 This is a schematic diagram of the fire-resistant protective layer structure of the present invention;

[0031] Fig.11 This is a schematic diagram of the structure of the acid-base corrosion resistant layer of the present invention;

[0032] In the figure: 1. Composite board body; 2. Combined high-strength core board; 3. Aluminum alloy frame; 4. Fire-resistant protective layer; 5. Acid and alkali erosion resistance layer; 6. High-density polyethylene surface layer; 7. Resin glue layer; 8. Wooden base plate one; 9. Wooden base plate two; 10. Reinforcement layer one; 11. Reinforcement layer two; 12. Reinforcement layer three; 13. Horizontal through hole; 14. Horizontal metal reinforcement rib; 15. Longitudinal through hole; 16. Longitudinal metal reinforcement rib; 17. Bolt; 18. Auxiliary reinforcement support one; 19. Auxiliary reinforcement support two; 20. Installation through hole one; 21. Installation through hole two; 22. Limiting through hole one; 23. Limiting through hole two; 24. Arc groove; 25. Arc anti-slip rib; 26. Weight reduction through hole; 27. Snap-in groove; 28. Bolt Installation sleeve; 29. ​​Arc-shaped clamping plate; 30. Composite reinforced fiber bundle; 31. Carbon fiber; 32. Silicon carbide fiber; 33. Graphite fiber; 34. Metal fiber; 35. Heterocyclic polyamide fiber; 36. First fire-resistant base layer; 37. Second fire-resistant base layer; 38. Transverse strip braided belt; 39. Longitudinal strip braided belt; 40. Polyphenylene sulfide fiber; 41. Aromatic polyamide surface chemically treated fiber; 42. Polyacrylonitrile pre-oxidized fiber; 43. Basalt fiber; 44. Corrosion-resistant braided layer; 45. Surface coating layer; 46. Thickened braided belt body one; 47. Thickened braided belt body two; 48. Polytetrafluoroethylene fiber; 49. Polyvinylidene chloride fiber; 50. Aromatic sulfone fiber; 51. Ethylene-chlorotrifluoroethylene fiber. DETAILED DESCRIPTION

[0033] 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, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Embodiment 1, by Figures 1 to 4 The present invention provides a high-strength composite panel for display cabinets that is resistant to acid and alkali corrosion, including a composite panel body 1, wherein the composite panel body 1 is composed of a combined high-strength core panel 2, an aluminum alloy frame 3, a fire-resistant protective layer 4, an acid- and alkali-resistant layer 5, and a high-density polyethylene surface layer 6, wherein the aluminum alloy frame 3 is coated on the side of the combined high-strength core panel 2, the fire-resistant protective layer 4 is coated on the combined high-strength core panel 2 and the aluminum alloy frame 3, the acid- and alkali-resistant layer 5 is coated on the fire-resistant protective layer 4, and the high-density polyethylene surface layer 6 is coated on the acid- and alkali-resistant layer 5, and the combined high-strength core panel 2, the aluminum alloy frame 3, the fire-resistant protective layer 4, the acid- and alkali-resistant layer 5, and the high-density polyethylene surface layer 6 are all bonded and connected by a resin adhesive layer 7;

[0035] The combined high-strength core plate 2 can improve the overall strength of the composite plate, and the fire-resistant protective layer 4 and the acid-alkali corrosion resistance layer 5 can improve the fire resistance and acid-alkali corrosion resistance of the composite plate;

[0036] The combined high-strength core board 2 is composed of a wood substrate 1 8, a wood substrate 2 9, a reinforcement layer 1 10, a reinforcement layer 2 11 and a reinforcement layer 3 12. The reinforcement layer 10 is connected to the bottom end of the wood substrate 1 8, the reinforcement layer 2 11 is connected between the wood substrate 1 8 and the wood substrate 2 9, and the reinforcement layer 3 12 is connected to the top of the wood substrate 2 9. The wood substrate 1 8, the wood substrate 2 9, the reinforcement layer 10, the reinforcement layer 2 11 and the reinforcement layer 3 12 are all bonded and connected by a resin adhesive layer 7.

[0037] The combined structure consisting of wooden base plate 1 8, wooden base plate 2 9, reinforcing layer 1 10, reinforcing layer 2 11 and reinforcing layer 3 12 further improves the overall strength, and the connection stability between the layers can be increased by bonding with the resin adhesive layer 7.

[0038] Embodiment 2, based on embodiment 1, Figures 3 to 9It is shown that a plurality of transverse through holes 13 are provided inside the wooden base plate 18, and transverse metal reinforcing ribs 14 are interspersed inside the transverse through holes 13; a plurality of longitudinal through holes 15 are provided inside the wooden base plate 29, and a plurality of longitudinal metal reinforcing ribs 16 are interspersed inside the longitudinal through holes 15; chemical adhesives are filled between the transverse metal reinforcing ribs 14 and the transverse through holes 13, and between the longitudinal metal reinforcing ribs 16 and the longitudinal through holes 15; the transverse metal reinforcing ribs 14 and the longitudinal metal reinforcing ribs 16 are fixedly connected to the aluminum alloy frame 3 by a plurality of bolts 17; a plurality of auxiliary reinforcement supports 18 matching the transverse metal reinforcing ribs 14 and a plurality of auxiliary reinforcement supports 2 19 matching the longitudinal metal reinforcing ribs 16 are interspersed inside the modular high-strength core plate 2; a plurality of mounting through holes 20 matching the auxiliary reinforcement supports 18 and a plurality of mounting through holes 29 matching the auxiliary reinforcement supports 2 19 are provided on the modular high-strength core plate 2. A matching installation through hole 21, a limiting through hole 22 matching the transverse metal reinforcement rib 14 is provided on the auxiliary reinforcement support 18, and a limiting through hole 23 matching the longitudinal metal reinforcement rib 16 is provided on the auxiliary reinforcement support 19. The sides of the transverse metal reinforcement rib 14 and the longitudinal metal reinforcement rib 16 are provided with a plurality of arc grooves 24, and the arc anti-slip ribs 25 are fixedly arranged inside the arc grooves 24. The transverse metal reinforcement rib 14 and the longitudinal metal reinforcement rib 16 are provided with weight-reducing through holes 26, and the transverse metal reinforcement rib 14 and the longitudinal metal reinforcement rib 16 are provided with clamping grooves 27 at both ends. Bolt mounting sleeves 28 matching the bolts 17 are provided at both ends of the weight-reducing through holes 26. One end of the side of the bolt mounting sleeve 28 is fixedly provided with a plurality of arc clamping plates 29 matching the clamping grooves 27, and the arc clamping plates 29 are installed inside the clamping grooves 27 and connected thereto by a plurality of screws;

[0039] The composite board for the showcase adopts a prefabricated module processing method according to the shape and size of the showcase, so there is no need to perform cutting, drilling and other operations during the later installation. The wooden base plate 1 8 and the wooden base plate 2 9 are pre-opened with a transverse through hole 13 and a longitudinal through hole 15 during processing, and the transverse metal reinforcement rib 14 is inserted into the interior of the transverse through hole 13 and reinforced by a chemical adhesive. The longitudinal metal reinforcement rib 16 is inserted into the interior of the longitudinal through hole 15 and reinforced by a chemical adhesive. The port positions of the transverse metal reinforcement rib 14 and the longitudinal metal reinforcement rib 16 are fixedly connected to the aluminum alloy frame 3 by bolts 17 to improve the overall stability. The transverse metal reinforcement rib 14 and the longitudinal metal reinforcement rib 16 are respectively reinforced by auxiliary reinforcement support 1 18 and auxiliary reinforcement support 2 19 to improve the bending resistance. The bolt installation sleeve 28 can be connected to the bolt 17. By setting the transverse metal reinforcement rib 14 and the longitudinal metal reinforcement rib 16 as a polygonal structure, the bending resistance can be further improved.

[0040] The reinforcing layer 10, the reinforcing layer 2 11 and the reinforcing layer 3 12 are all woven from a plurality of composite reinforcing fiber bundles 30. The reinforcing layer 10, the reinforcing layer 2 11 and the reinforcing layer 3 12 are all dense mesh structures. The composite reinforcing fiber bundles 30 are composed of carbon fibers 31, silicon carbide fibers 32, graphite fibers 33, metal fibers 34 and heterocyclic polyamide fibers 35 twisted together.

[0041] The strength can be further improved by combining a composite reinforcing fiber bundle 30 composed of carbon fiber 31, silicon carbide fiber 32, graphite fiber 33, metal fiber 34 and heterocyclic polyamide fiber 35, and weaving the composite reinforcing fiber bundle 30 to form reinforcing layer one 10, reinforcing layer two 11 and reinforcing layer three 12.

[0042] Embodiment 3, based on embodiment 1, Figure 3 and Fig.10 It is given that the fire-resistant protective layer 4 is composed of a first fire-resistant base layer 36 and a second fire-resistant base layer 37. The first fire-resistant base layer 36 and the second fire-resistant base layer 37 are staggered connection structures. The first fire-resistant base layer 36 and the second fire-resistant base layer 37 are woven by a plurality of transverse strip braided belts 38 and a plurality of longitudinal strip braided belts 39. The transverse strip braided belts 38 and the longitudinal strip braided belts 39 are woven by polyphenylene sulfide fibers 40, aromatic polyamide surface chemically treated fibers 41, polyacrylonitrile pre-oxidized fibers 42 and basalt fibers 43.

[0043] By weaving a transverse strip woven belt 38 and a longitudinal strip woven belt 39 composed of polyphenylene sulfide fiber 40, aromatic polyamide surface chemically treated fiber 41, polyacrylonitrile pre-oxidized fiber 42 and basalt fiber 43, and weaving the transverse strip woven belt 38 and the longitudinal strip woven belt 39 to form a first fire-resistant base layer 36 and a second fire-resistant base layer 37, the overall fire-resistant performance can be improved and the safety of use can be improved.

[0044] Embodiment 4, based on embodiment 1, Figure 3 and Fig.11 It is shown that the acid-base corrosion resistant layer 5 is composed of an corrosion-resistant braided layer 44 and a surface coating layer 45. The surface coating layer 45 is sprayed on the outer surface of the corrosion-resistant braided layer 44. The corrosion-resistant braided layer 44 is composed of a plurality of thickened braided belt bodies 1 46 and a plurality of thickened braided belt bodies 2 47. The thickened braided belt bodies 1 46 and the thickened braided belt bodies 2 47 are both braided from polytetrafluoroethylene fibers 48, polyvinylidene chloride fibers 49, aromatic sulfone fibers 50 and ethylene-chlorotrifluoroethylene fibers 51.

[0045] By weaving a thickened braided belt body 1 46 and a thickened braided belt body 2 47 composed of polytetrafluoroethylene fiber 48, polyvinylidene chloride fiber 49, aromatic sulfone fiber 50 and ethylene-trifluorochloroethylene fiber 51, and weaving the thickened braided belt body 1 46 and the thickened braided belt body 2 47 to form an anti-corrosion braided layer 44, the overall acid and alkali corrosion resistance can be improved.

[0046] During operation, by setting a combined high-strength core board consisting of a wood base plate 1, a wood base plate 2, a reinforcement layer 1, a reinforcement layer 2 and a reinforcement layer 3, its compression resistance, bending resistance and tensile resistance can be improved, thereby improving its overall strength. By setting transverse metal reinforcement ribs, longitudinal metal reinforcement ribs, auxiliary reinforcement support 1, auxiliary reinforcement support 2 and a composite reinforcement fiber bundle consisting of carbon fiber, silicon carbide fiber, graphite fiber, metal fiber and heterocyclic polyamide fiber, its strength can be further improved. By setting a composite reinforcement fiber bundle consisting of polyphenylene sulfide fiber, aromatic polyamide surface The transverse strip woven belt and the longitudinal strip woven belt formed by chemically treated fibers, polyacrylonitrile pre-oxidized fibers and basalt fibers can improve the fire resistance and flame retardancy of the composite board, thereby achieving safe protection for the exhibits inside the display cabinet; by setting up thickened woven belt body 1 and thickened woven belt body 2 woven by polytetrafluoroethylene fibers, polyvinylidene chloride fibers, aromatic sulfone fibers and ethylene-trifluorochloroethylene fibers, the acid and alkali corrosion resistance of the composite board can be improved, thereby improving the adaptability of the display cabinet, and it can be used for the display of different types of items and increase its service life.

Claims

1. A high-strength composite panel for display cabinets that is resistant to acid and alkali corrosion, comprising a composite panel body (1), characterized in that: The composite board body (1) is composed of a combined high-strength core board (2), an aluminum alloy frame (3), a fire-resistant protective layer (4), an acid-base erosion resistance layer (5) and a high-density polyethylene surface layer (6); the aluminum alloy frame (3) is coated on the side of the combined high-strength core board (2); the fire-resistant protective layer (4) is coated on the combined high-strength core board (2) and the aluminum alloy frame (3); the acid-base erosion resistance layer (5) is coated on the fire-resistant protective layer (4); the high-density polyethylene surface layer (6) is coated on the acid-base erosion resistance layer (5); the combined high-strength core board (2), the aluminum alloy frame (3), the fire-resistant protective layer (4), the acid-base erosion resistance layer (5) and the high-density polyethylene surface layer (6) are all bonded and connected by a resin adhesive layer (7); The combined high-strength core board (2) is composed of a wood base plate one (8), a wood base plate two (9), a reinforcement layer one (10), a reinforcement layer two (11) and a reinforcement layer three (12); the reinforcement layer one (10) is connected to the bottom end of the wood base plate one (8); the reinforcement layer two (11) is connected between the wood base plate one (8) and the wood base plate two (9); the reinforcement layer three (12) is connected to the top end of the wood base plate two (9); and the wood base plate one (8), the wood base plate two (9), the reinforcement layer one (10), the reinforcement layer two (11) and the reinforcement layer three (12) are all bonded and connected by a resin adhesive layer (7).

2. The high-strength composite board for display cabinets resistant to acid and alkali corrosion according to claim 1, characterized in that: The wooden base plate 1 (8) is provided with a plurality of transverse through holes (13), and transverse metal reinforcing ribs (14) are inserted into the transverse through holes (13). The wooden base plate 2 (9) is provided with a plurality of longitudinal through holes (15), and a plurality of longitudinal metal reinforcing ribs (16) are inserted into the longitudinal through holes (15). Chemical adhesive is filled between the transverse metal reinforcing ribs (14) and the transverse through holes (13), and between the longitudinal metal reinforcing ribs (16) and the longitudinal through holes (15). The transverse metal reinforcing ribs (14) and the longitudinal metal reinforcing ribs (16) are fixedly connected to the aluminum alloy frame (3) by a plurality of bolts (17).

3. The high-strength composite board for display cabinets resistant to acid and alkali corrosion according to claim 2, characterized in that: The combined high-strength core plate (2) is provided with a plurality of auxiliary reinforcement supports (18) matching the transverse metal reinforcement ribs (14) and a plurality of auxiliary reinforcement supports (19) matching the longitudinal metal reinforcement ribs (16) interspersed inside.

4. The high-strength composite board for display cabinets resistant to acid and alkali corrosion according to claim 3, characterized in that: The combined high-strength core plate (2) is provided with a plurality of mounting through holes (20) matching the auxiliary reinforcement support (18) and a plurality of mounting through holes (21) matching the auxiliary reinforcement support (19); the auxiliary reinforcement support (18) is provided with a limiting through hole (22) matching the transverse metal reinforcement rib (14); the auxiliary reinforcement support (19) is provided with a limiting through hole (23) matching the longitudinal metal reinforcement rib (16).

5. The high-strength composite board for display cabinets resistant to acid and alkali corrosion according to claim 2, characterized in that: The sides of the transverse metal reinforcing ribs (14) and the longitudinal metal reinforcing ribs (16) are both provided with a plurality of arc-shaped grooves (24), and arc-shaped anti-slip convex ribs (25) are fixedly arranged inside the arc-shaped grooves (24).

6. The high-strength composite board for display cabinets resistant to acid and alkali corrosion according to claim 5, characterized in that: The transverse metal reinforcement rib (14) and the longitudinal metal reinforcement rib (16) are provided with weight-reducing through holes (26) inside, and the two ends of the transverse metal reinforcement rib (14) and the longitudinal metal reinforcement rib (16) are provided with clamping grooves (27). Both ends of the weight-reducing through holes (26) are provided with bolt mounting sleeves (28) matching the bolts (17). One end of the side of the bolt mounting sleeve (28) is fixedly provided with a plurality of arc-shaped clamping plates (29) matching the clamping grooves (27). The arc-shaped clamping plates (29) are installed inside the clamping grooves (27) and connected thereto by a plurality of screws.

7. The high-strength composite board for display cabinets resistant to acid and alkali corrosion according to claim 1, characterized in that: The reinforcing layer one (10), the reinforcing layer two (11) and the reinforcing layer three (12) are all woven from a plurality of composite reinforcing fiber bundles (30), and the reinforcing layer one (10), the reinforcing layer two (11) and the reinforcing layer three (12) are all dense mesh structures.

8. The high-strength composite board for display cabinets resistant to acid and alkali corrosion according to claim 7, characterized in that: The composite reinforcing fiber bundle (30) is formed by twisting carbon fibers (31), silicon carbide fibers (32), graphite fibers (33), metal fibers (34) and heterocyclic polyamide fibers (35).

9. The high-strength composite board for display cabinets resistant to acid and alkali corrosion according to claim 1, characterized in that: The fire-resistant protective layer (4) is composed of a first fire-resistant base layer (36) and a second fire-resistant base layer (37). The first fire-resistant base layer (36) and the second fire-resistant base layer (37) are staggered connection structures. The first fire-resistant base layer (36) and the second fire-resistant base layer (37) are both woven from a plurality of transverse strip braided belts (38) and a plurality of longitudinal strip braided belts (39). The transverse strip braided belts (38) and the longitudinal strip braided belts (39) are both woven from polyphenylene sulfide fibers (40), aromatic polyamide surface chemically treated fibers (41), polyacrylonitrile pre-oxidized fibers (42) and basalt fibers (43).

10. The high-strength composite board for display cabinets resistant to acid and alkali corrosion according to claim 1, characterized in that: The acid-base corrosion resistant layer (5) is composed of an corrosion resistant braided layer (44) and a surface coating layer (45). The surface coating layer (45) is sprayed on the outer surface of the corrosion resistant braided layer (44). The corrosion resistant braided layer (44) is composed of a plurality of thickened braided belt bodies (46) and a plurality of thickened braided belt bodies (47). The thickened braided belt bodies (46) and the thickened braided belt bodies (47) are both braided from polytetrafluoroethylene fibers (48), polyvinylidene chloride fibers (49), aromatic sulfone fibers (50) and ethylene-chlorotrifluoroethylene fibers (51).

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