High-performance composite board as well as preparation method and application thereof

Abstract

The invention discloses a high-performance composite board as well as a preparation method and application thereof, and belongs to the technical field of high-performance materials. The high-performance composite board comprises a top board, a bottom board and an aluminum honeycomb core arranged between the top board and the bottom board. The aluminum honeycomb core comprises, by mass, 4.3%-5.5% of Zn, 2.0%-2.5% of Mg, 0.8%-1.2% of Cu, 0.15%-0.23% of Zr, 0.02%-0.06% of Mn, 0.12%-0.3% of rare earth elements, 0.02%-0.04% of Ti, 0.3%-0.7% of Si, smaller than or equal to 0.15% of Fe, smaller than or equal to 0.01% of impurity elements and the balance Al. The board is prepared by combining a wood material and an aluminum alloy material, the appearance and performance of wood are kept, the board has the high strength and corrosion resistance of the aluminum alloy material, the overall mechanical property is more excellent, cracking is not prone to occurring, the sound insulation effect of the composite board can be improved, and the product is endowed with higher value.

Description

Technical Field

[0001] The present invention relates to the technical field of high-performance materials, and in particular to a high-performance composite plate and a preparation method and application thereof. Background Art

[0002] As a fundamental material in furniture manufacturing and interior decoration, board materials are widely used in various applications, including cabinets, door panels, and wall decorations. They are typically made from processed and pressed wood chips, fibers, or other wood materials, and feature uniform texture, standard dimensions, and ease of processing. The emergence of board materials has not only revolutionized the furniture manufacturing industry but also provided consumers with a wider range of choices and more affordable prices. With technological advancements and process optimization, board production technology continues to improve, with innovations not only in material formulation and production processes, but also in surface treatment and enhanced functionality. These improvements have significantly enhanced the strength, weather resistance, and aesthetics of board materials, meeting market demand for high-quality, multifunctional board materials.

[0003] However, when subjected to environmental stress or complex stress states, traditional pure wood structure doors and windows have relatively high requirements for wood. As the trees are cut down, high-performance wood resources become more and more difficult to obtain, which leads to increased costs. In addition, pure wood structure doors and windows require regular maintenance during use. Due to the problem of insufficient mechanical properties, if the board structure is not strong, it will cause board deformation, cracking, and even overall structural failure. It not only affects the service life and safety of the product, but may also cause economic losses and waste of resources. Pure aluminum alloy doors and windows are obtained through the process of casting and extrusion, and are not easy to deform. However, the cost of preparing pure aluminum alloy doors and windows is relatively high. In a completely exposed environment, organic acids in biological metabolites such as mold will cause certain damage and corrosion to the aluminum alloy liquid, thereby affecting the service life. Therefore, in the existing technology, it is of positive significance to study the combination of wood and aluminum alloy materials, optimize the structure and formula, and obtain high-performance and long-life products.

[0004] In the prior art, for example, Chinese Patent Application No. CN104747004A discloses an aluminum alloy veneer composite outward-opening door and window system. This system leverages the advantages of both aluminum alloy and pure wood doors and windows to enrich the variety of doors and windows, while maintaining the excellent oxidation resistance and weather resistance of aluminum alloy while also preserving the aesthetic qualities of wood on the interior side. Another example is Chinese Patent Application No. CN116494585A, which discloses a method for producing wood-plastic aluminum alloy door and window profiles. This improved method utilizes a closed mold casting process, using foamed polyurethane to simulate wood and produce the wood-plastic aluminum alloy door and window profiles in a single step, eliminating the need for mechanical fastening or gluing. This method can be manufactured into a variety of complex structures and carved patterns, achieving the effect of wood carving, precise dimensions, clear patterns, realistic textures, stable dimensions and shapes, and meeting the structural strength requirements for doors and windows. Furthermore, it significantly improves thermal insulation, heat preservation, and decorative effects. However, the mechanical properties and corrosion resistance of doors and windows made from these materials still need to be improved. Summary of the Invention

[0005] Based on this, in order to solve one of the above problems, the present invention provides a high-performance composite board and its preparation method and application. The specific technical solution is as follows:

[0006] A high-performance composite plate comprises a top plate 1, an aluminum honeycomb core 2 and a bottom plate 3, wherein the aluminum honeycomb core 2 is arranged between the top plate 1 and the bottom plate 3;

[0007] The aluminum honeycomb core includes the following elements in mass percentage: Zn: 4.3% to 5.5%, Mg: 2.0% to 2.5%, Cu: 0.8% to 1.2%, Zr: 0.15% to 0.23%, Mn: 0.02% to 0.06%, rare earth elements: 0.12% to 0.3%, Ti: 0.02% to 0.04%, Si: 0.3% to 0.7%, Fe≤0.15%, impurity elements≤0.01%, and the balance is Al.

[0008] Furthermore, the top plate 1 and the bottom plate 3 are both made of wood.

[0009] Furthermore, the rare earth elements are composed of Eu, Pr and Nd in a weight ratio of (1-9): (1-8): (1-9).

[0010] Furthermore, the preparation method of the aluminum honeycomb core comprises the following steps:

[0011] The raw materials for preparing the aluminum honeycomb core are added to a melting furnace for melting treatment, refined and degassed, and then cast to a thickness of 1 mm to 3 mm, solution treated, and then cold rolled to a thickness of 0.1 mm to 0.5 mm to obtain a thin aluminum alloy material;

[0012] According to the physical parameter design of the aluminum honeycomb core, thin aluminum alloy materials are stacked and stretched to obtain the aluminum honeycomb core.

[0013] Furthermore, the temperature of the smelting process is 720°C to 740°C.

[0014] Furthermore, a mixed gas is introduced into the refining process, wherein the mixed gas includes nitrogen, argon and chlorine in a volume ratio of (55-60): (20-25): (15-25).

[0015] Furthermore, the time for introducing the mixed gas is 15min to 30min, and the gas flow rate is 1.5m 3 / min~1.8m 3 / min.

[0016] Furthermore, the speed of the casting process is 0.6 m / min to 1.0 m / min, the pouring temperature is 680° C. to 700° C., and the rolling force is 850 t to 900 t.

[0017] Furthermore, the uncoiling tension value of the cold rolling process is set in the range of 1.0 kg / mm 2 ~2.0kg / mm 2 , winding tension setting range 1.5kg / mm 2 ~3.0kg / mm 2 , the rolling speed setting range is 150m / min~200m / min.

[0018] In addition, the present invention also provides a method for preparing a high-performance composite plate, the method comprising the following steps:

[0019] One side of the wood material of the top plate 1 and the bottom plate 3 is polished, wiped, and air-cleaned to obtain the top plate 1 with a friction surface and the bottom plate 3 with a friction surface;

[0020] According to the structural design of the high-performance composite plate, a top plate 1 having a friction surface, a bottom plate 3 having a friction surface, and an aluminum honeycomb core 2 are assembled, and one end of the aluminum honeycomb core 2 is bonded to the friction surface of the top plate 1, and the other end of the aluminum honeycomb core 2 is bonded to the friction surface of the bottom plate 3 to obtain a slab;

[0021] The slab is placed in a cold press at a pressure of 0.3MPa to 0.5MPa for pre-pressing for 3 to 5 minutes, then hot-pressed for 10 to 15 minutes at a temperature of 80°C to 100°C and a pressure of 1MPa to 2MPa, and naturally cooled to room temperature to obtain a high-performance composite plate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention prepares a board by combining wood material with aluminum alloy material, which not only maintains the appearance and performance of wood, but also has the high strength and corrosion resistance of aluminum alloy material, and the overall mechanical properties are better, thereby extending its service life. In addition, the aluminum honeycomb core material is optimized through composition. The purpose of Zr is to refine the α-FeAlSi phase, inhibit recrystallization during extrusion, maintain the deformed structure as much as possible, and improve the mechanical properties; a specific composition of Eu, Pr and Nd is mixed as rare earth elements and added to the aluminum honeycomb core. Combined with process optimization, while ensuring the excellent impact strength of the aluminum honeycomb core, the toughness and corrosion resistance of the aluminum honeycomb core can be significantly improved.

[0024] 2. The present invention improves the overall physical and mechanical properties of the composite board by combining the wood board material with the honeycomb core, gluing and hot pressing. The lighter aluminum honeycomb core structure not only gives the board better mechanical properties and is less prone to cracking, but also improves the sound insulation effect of the composite board, giving the product higher value. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of the high-performance composite plate prepared in Example 1 of the present invention;

[0026] Figure 2 Schematic diagram of the aluminum honeycomb core of the high-performance composite plate prepared in Example 1 of the present invention.

[0027] Description of Reference Numerals

[0028] 1. Top plate; 2. Aluminum honeycomb core; 3. Bottom plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] A high-performance composite plate in one embodiment of the present invention includes a top plate 1, an aluminum honeycomb core 2, and a bottom plate 3, wherein the aluminum honeycomb core 2 is disposed between the top plate 1 and the bottom plate 3;

[0032] The aluminum honeycomb core includes the following elements in mass percentage: Zn: 4.3% to 5.5%, Mg: 2.0% to 2.5%, Cu: 0.8% to 1.2%, Zr: 0.15% to 0.23%, Mn: 0.02% to 0.06%, rare earth elements: 0.12% to 0.3%, Ti: 0.02% to 0.04%, Si: 0.3% to 0.7%, Fe≤0.15%, impurity elements≤0.01%, and the balance is Al.

[0033] In some embodiments, the top plate 1 and the bottom plate 3 are both made of wood.

[0034] In some embodiments, the rare earth elements are composed of Eu, Pr and Nd in a weight ratio of (1-9): (1-8): (1-9).

[0035] In some embodiments, the method for preparing the aluminum honeycomb core comprises the following steps:

[0036] The raw materials for preparing the aluminum honeycomb core are added to a melting furnace for melting treatment, refined and degassed, and then cast to a thickness of 1 mm to 3 mm, solution treated, and then cold rolled to a thickness of 0.1 mm to 0.5 mm to obtain a thin aluminum alloy material;

[0037] According to the physical parameter design of the aluminum honeycomb core, thin aluminum alloy materials are stacked and stretched to obtain the aluminum honeycomb core.

[0038] In some embodiments, the temperature of the smelting process is 720°C to 740°C.

[0039] In some embodiments, a mixed gas is introduced into the refining process, wherein the mixed gas includes nitrogen, argon and chlorine in a volume ratio of (55-60): (20-25): (15-25).

[0040] In some embodiments, the time for introducing the mixed gas is 15 min to 30 min, and the gas flow rate is 1.5 m 3 / min~1.8m 3 / min.

[0041] In some embodiments, the casting process has a speed of 0.6 m / min to 1.0 m / min, a casting temperature of 680° C. to 700° C., and a rolling force of 850 t to 900 t.

[0042] In some embodiments, the uncoiling tension value of the cold rolling process is set in the range of 1.0 kg / mm 2 ~2.0kg / mm 2 , winding tension setting range 1.5kg / mm2 ~3.0kg / mm 2 , the rolling speed setting range is 150m / min~200m / min.

[0043] In some embodiments, the solution treatment is: keeping the temperature at 90°C to 100°C for 4h to 8h, and then keeping the temperature at 100°C to 120°C for 12h to 24h.

[0044] In addition, the present invention also provides a method for preparing a high-performance composite plate, the method comprising the following steps:

[0045] One side of the wood material of the top plate 1 and the bottom plate 3 is polished, wiped, and air-cleaned to obtain the top plate 1 with a friction surface and the bottom plate 3 with a friction surface;

[0046] According to the structural design of the high-performance composite plate, a top plate 1 having a friction surface, a bottom plate 3 having a friction surface, and an aluminum honeycomb core 2 are assembled, and one end of the aluminum honeycomb core 2 is bonded to the friction surface of the top plate 1, and the other end of the aluminum honeycomb core 2 is bonded to the friction surface of the bottom plate 3 to obtain a slab;

[0047] The slab is placed in a cold press at a pressure of 0.3MPa to 0.5MPa for pre-pressing for 3 to 5 minutes, then hot-pressed for 10 to 15 minutes at a temperature of 80°C to 100°C and a pressure of 1MPa to 2MPa, and naturally cooled to room temperature to obtain a high-performance composite plate.

[0048] In some embodiments, several support plates may be provided between the top plate 1 and the bottom plate 3. When several support plates are provided, the aluminum honeycomb core is provided in a cavity formed by the top plate 1, the bottom plate 3 and the several support plates.

[0049] The composite panel prepared by the above scheme has significant application mechanical properties, and the aluminum honeycomb core has excellent mechanical properties and corrosion resistance, which helps to extend the service life of the composite panel.

[0050] The embodiments of the present invention will be described in detail below with reference to specific examples.

[0051] Example 1:

[0052] A method for preparing a high-performance composite plate comprises the following steps:

[0053] The aluminum honeycomb core is prepared according to the following elements in percentage by mass: Zn: 4.8%, Mg: 2.2%, Cu: 1.2%, Zr: 0.18%, Mn: 0.04%, rare earth elements: 0.23%, and the rare earth elements are composed of Eu, Pr and Nd in a weight ratio of 0.07:0.07:0.09, Ti: 0.04%, Si: 0.3%, Fe≤0.15%, impurity elements≤0.01%, and the balance is Al; then the raw materials for preparing the aluminum honeycomb core are added to a melting furnace for melting treatment at 740°C, and are refined and a mixed gas is introduced during the refining treatment, wherein the mixed gas includes nitrogen, argon and chlorine in a volume ratio of 55:20:25, the time for introducing the mixed gas is 20 minutes, and the gas flow rate is 1.5m 3 / min, degassing treatment, and then casting treatment at a speed of 0.8m / min, pouring temperature of 680℃, rolling force of 850t. When the casting treatment reaches a thickness of 2mm, it is kept warm at 90℃ for 6h, and then kept warm at 120℃ for 20h, and then continues cold rolling treatment. The unwinding tension value of the cold rolling treatment is set in the range of 1.5kg / mm 2 , winding tension setting range 2.0kg / mm 2 , the rolling speed setting range is 150m / min, and the cold rolling treatment is performed to 0.5mm to obtain a thin aluminum alloy material;

[0054] According to the physical parameter design of the aluminum honeycomb core, thin aluminum alloy materials are stacked and stretched to obtain the aluminum honeycomb core.

[0055] One side of the wood material of the top plate 1 and the bottom plate 3 is polished, wiped, and air-cleaned to obtain the top plate 1 with a friction surface and the bottom plate 3 with a friction surface;

[0056] According to the structural design of the high-performance composite plate, a top plate 1 having a friction surface, a bottom plate 3 having a friction surface, and an aluminum honeycomb core 2 are assembled, and one end of the aluminum honeycomb core 2 is bonded to the friction surface of the top plate 1, and the other end of the aluminum honeycomb core 2 is bonded to the friction surface of the bottom plate 3 to obtain a slab;

[0057] The slab was placed in a cold press at a pressure of 0.5 MPa for pre-pressing for 5 minutes, then hot pressed at a temperature of 80° C. and a pressure of 2 MPa for 10 minutes, and naturally cooled to room temperature to obtain a high-performance composite plate.

[0058] Example 2:

[0059] A method for preparing a high-performance composite plate comprises the following steps:

[0060] The aluminum honeycomb core is prepared according to the following elements in percentage by mass: Zn: 4.8%, Mg: 2.3%, Cu: 1.1%, Zr: 0.18%, Mn: 0.06%, rare earth elements: 0.25%, and the rare earth elements are composed of Eu, Pr and Nd in a weight ratio of 0.08:0.08:0.09, Ti: 0.03%, Si: 0.4%, Fe≤0.15%, impurity elements≤0.01%, and the balance is Al; then the raw materials for preparing the aluminum honeycomb core are added to a melting furnace for melting treatment at 730°C, and are refined and a mixed gas is introduced during the refining treatment, wherein the mixed gas includes nitrogen, argon and chlorine in a volume ratio of 55:20:25, the time for introducing the mixed gas is 20 minutes, and the gas flow rate is 1.6m 3 / min, degassing treatment, and then casting treatment at a speed of 1.0m / min, pouring temperature of 700℃, rolling force of 850t. When the casting treatment reaches a thickness of 3mm, it is kept at 100℃ for 8h, and then kept at 120℃ for 22h, and then continues cold rolling treatment. The unwinding tension value of the cold rolling treatment is set in the range of 2.0kg / mm 2 , winding tension setting range 3.0kg / mm 2 , the rolling speed setting range is 150m / min, and the cold rolling treatment is performed to 0.5mm to obtain a thin aluminum alloy material;

[0061] According to the physical parameter design of the aluminum honeycomb core, thin aluminum alloy materials are stacked and stretched to obtain the aluminum honeycomb core.

[0062] One side of the wood material of the top plate 1 and the bottom plate 3 is polished, wiped, and air-cleaned to obtain the top plate 1 with a friction surface and the bottom plate 3 with a friction surface;

[0063] According to the structural design of the high-performance composite plate, a top plate 1 having a friction surface, a bottom plate 3 having a friction surface, and an aluminum honeycomb core 2 are assembled, and one end of the aluminum honeycomb core 2 is bonded to the friction surface of the top plate 1, and the other end of the aluminum honeycomb core 2 is bonded to the friction surface of the bottom plate 3 to obtain a slab;

[0064] The slab was placed in a cold press at a pressure of 0.4 MPa for pre-pressing for 5 minutes, then hot pressed at a temperature of 100° C. and a pressure of 1 MPa for 12 minutes, and naturally cooled to room temperature to obtain a high-performance composite plate.

[0065] Example 3:

[0066] A method for preparing a high-performance composite plate comprises the following steps:

[0067] The aluminum honeycomb core is prepared according to the following elements in percentage by mass: Zn: 5.5%, Mg: 2.0%, Cu: 0.8%, Zr: 0.23%, Mn: 0.06%, rare earth elements: 0.3%, and the rare earth elements are composed of Eu, Pr and Nd in a weight ratio of 0.1:0.1:0.1, Ti: 0.04%, Si: 0.7%, Fe≤0.15%, impurity elements≤0.01%, and the balance is Al; then the raw materials for preparing the aluminum honeycomb core are added to a melting furnace for melting treatment at 740°C, and are refined and a mixed gas is introduced during the refining treatment, wherein the mixed gas includes nitrogen, argon and chlorine in a volume ratio of 55:20:25, the time for introducing the mixed gas is 30 minutes, and the gas flow rate is 1.8m 3 / min, degassing treatment, and then casting treatment at a speed of 1.0m / min, pouring temperature of 700℃, rolling force of 850t. When the casting treatment reaches a thickness of 3mm, it is kept at 100℃ for 7h, and then kept at 105℃ for 24h, and then continued with cold rolling treatment. The unwinding tension value of the cold rolling treatment is set in the range of 1.8kg / mm 2 , winding tension setting range 2.5kg / mm 2 , the rolling speed setting range is 150m / min, and the cold rolling treatment is performed to 0.5mm to obtain a thin aluminum alloy material;

[0068] According to the physical parameter design of the aluminum honeycomb core, thin aluminum alloy materials are stacked and stretched to obtain the aluminum honeycomb core.

[0069] One side of the wood material of the top plate 1 and the bottom plate 3 is polished, wiped, and air-cleaned to obtain the top plate 1 with a friction surface and the bottom plate 3 with a friction surface;

[0070] According to the structural design of the high-performance composite plate, a top plate 1 having a friction surface, a bottom plate 3 having a friction surface, and an aluminum honeycomb core 2 are assembled, and one end of the aluminum honeycomb core 2 is bonded to the friction surface of the top plate 1, and the other end of the aluminum honeycomb core 2 is bonded to the friction surface of the bottom plate 3 to obtain a slab;

[0071] The slab was placed in a cold press at a pressure of 0.5 MPa for pre-pressing for 5 minutes, then hot pressed at a temperature of 100° C. and a pressure of 1.3 MPa for 15 minutes, and naturally cooled to room temperature to obtain a high-performance composite plate.

[0072] Comparative Example 1:

[0073] The difference between Comparative Example 1 and Example 3 is that the aluminum honeycomb core of Comparative Example 1 does not include the Zr element, and the rest is the same as Example 3.

[0074] Comparative Example 2:

[0075] The difference between Comparative Example 2 and Example 3 is that the aluminum honeycomb core of Comparative Example 2 does not include the Eu element, and the rest is the same as Example 3.

[0076] Comparative Example 3:

[0077] The difference between Comparative Example 3 and Example 3 is that the aluminum honeycomb core of Comparative Example 3 does not include the Pr element, and the rest is the same as Example 3.

[0078] Comparative Example 4:

[0079] The difference between Comparative Example 4 and Example 3 is that the aluminum honeycomb core of Comparative Example 4 does not include Nd element, and the rest is the same as Example 3.

[0080] Comparative Example 5:

[0081] The difference between Comparative Example 5 and Example 3 is that Comparative Example 5 is not subjected to solution treatment, and the rest is the same as Example 3.

[0082] Comparative Example 6:

[0083] The difference between Comparative Example 6 and Example 3 is that Comparative Example 6 uses a solid aluminum plate instead of the aluminum honeycomb core, and the rest is the same as Example 3.

[0084] The performance tests were performed on the aluminum honeycomb core samples of Examples 1 to 3 and the aluminum honeycomb core comparison samples of Comparative Examples 1 to 5. The results are shown in Table 1 below.

[0085] Table 1: Performance test results of aluminum honeycomb core

[0086]

[0087]

[0088] Analysis of the data in Table 1 demonstrates that, by optimizing the composition and ratio of the aluminum honeycomb core, the present invention can achieve an aluminum honeycomb core with excellent mechanical properties and corrosion resistance overall, and can be applied to the preparation of the high-performance composite sheet material of this application. Comparative Example 1 lacks the Zr element, resulting in coarse grains and significantly poorer corrosion resistance than Example 3. Comparative Example 2 lacks the Eu element, weakening the synergistic effect of the rare earth elements and reducing overall corrosion resistance. Comparative Example 3 lacks the Pr element, resulting in insufficient grain boundary strengthening and worse corrosion resistance than Example 3. Comparative Example 4 lacks the Nd element, resulting in coarse grains and poor corrosion resistance. Comparative Example 5 lacks solution treatment, leading to element segregation and reduced corrosion resistance.

[0089] In addition, the composite plate samples prepared in Examples 1 to 3 and the composite plate comparison samples prepared in Comparative Examples 1 to 6 were subjected to mechanical property tests, and the results are shown in Table 2 below.

[0090] Among them: impact performance refers to GB / T23451-2009; the sound insulation effect method is: play audio with a volume of 80dB at a distance of 50cm in front of the sample and the comparative sample respectively, measure the received volume at a distance of 50cm behind the sample and the comparative sample, and calculate the percentage of the reduction of the volume at the receiving point to the original volume as the sound insulation effect.

[0091] Table 2: Composite board performance test results

[0092]

[0093]

[0094] From the data analysis in Table 2, the high-performance composite board prepared by combining the wood board material and the aluminum honeycomb core in the present invention not only has excellent impact resistance and no cracks after 5 impact tests, but also has excellent sound insulation effect, has a wider application value, and is more lightweight than the product in Comparative Example 6.

[0095] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A high-performance composite board, characterized in that: It comprises a top plate (1), an aluminum honeycomb core (2) and a bottom plate (3), wherein the aluminum honeycomb core (2) is arranged between the top plate (1) and the bottom plate (3); The aluminum honeycomb core includes the following elements in mass percentage: Zn: 4.3% to 5.5%, Mg: 2.0% to 2.5%, Cu: 0.8% to 1.2%, Zr: 0.15% to 0.23%, Mn: 0.02% to 0.06%, rare earth elements: 0.12% to 0.3%, Ti: 0.02% to 0.04%, Si: 0.3% to 0.7%, Fe≤0.15%, impurity elements≤0.01%, and the balance is Al.

2. The high performance composite plate according to claim 1, characterized in that: The top plate (1) and the bottom plate (3) are both made of wood.

3. The high performance composite plate according to claim 1, characterized in that: The rare earth elements are composed of Eu, Pr and Nd in a weight ratio of (1-9): (1-8): (1-9).

4. The high performance composite plate according to claim 3, characterized in that: The preparation method of the aluminum honeycomb core comprises the following steps: The raw materials for preparing the aluminum honeycomb core are added to a melting furnace for melting treatment, refined and degassed, and then cast to a thickness of 1 mm to 3 mm, solution treated, and then cold rolled to a thickness of 0.1 mm to 0.5 mm to obtain a thin aluminum alloy material; According to the physical parameter design of the aluminum honeycomb core, thin aluminum alloy materials are stacked and stretched to obtain the aluminum honeycomb core.

5. The high performance composite plate according to claim 4, characterized in that: The temperature of the smelting process is 720℃~740℃.

6. The high performance composite plate according to claim 4, characterized in that: A mixed gas is introduced during the refining process, wherein the mixed gas includes nitrogen, argon and chlorine in a volume ratio of (55-60): (20-25): (15-25).

7. The high performance composite plate according to claim 6, characterized in that: The time for introducing mixed gas is 15min to 30min, and the gas flow rate is 1.5m 3 / min~1.8m 3 / min.

8. The high performance composite plate according to claim 6, characterized in that: The speed of the casting process is 0.6m / min to 1.0m / min, the pouring temperature is 680°C to 700°C, and the rolling force is 850t to 900t.

9. The high performance composite plate according to claim 8, characterized in that: The setting range of the uncoiling tension value of the cold rolling process is 1.0 kg / mm 2 ~2.0kg / mm 2 , winding tension setting range 1.5kg / mm 2 ~3.0kg / mm 2 , the rolling speed setting range is 150m / min~200m / min.

10. A method for preparing a high-performance composite plate, characterized in that: The preparation method is used to prepare the high-performance composite plate according to any one of claims 1 to 9, and the preparation method comprises the following steps: One side of the wood material of the top plate (1) and the bottom plate (3) is polished, wiped, and air-cleaned to obtain the top plate (1) and the bottom plate (3) having a friction surface; According to the structural design of the high-performance composite plate, a top plate (1) having a friction surface, a bottom plate (3) having a friction surface, and an aluminum honeycomb core (2) are assembled, and one end of the aluminum honeycomb core (2) is bonded to the friction surface of the top plate (1), and the other end of the aluminum honeycomb core (2) is bonded to the friction surface of the bottom plate (3), to obtain a slab; The slab is placed in a cold press at a pressure of 0.3MPa to 0.5MPa for pre-pressing for 3 to 5 minutes, then hot-pressed for 10 to 15 minutes at a temperature of 80°C to 100°C and a pressure of 1MPa to 2MPa, and naturally cooled to room temperature to obtain a high-performance composite plate.

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