Metal sound absorption material and preparation method thereof

Abstract

The invention relates to the technical field of sound-absorbing materials, in particular to a metal sound-absorbing material and a preparation method thereof.The metal sound-absorbing material is formed by stacking multiple layers of metal nickel fiber filaments, the cross section of each metal nickel fiber filament is hexagonal, and the metal nickel fiber filaments are distributed in a net structure. The sound absorption and noise reduction effects are achieved, meanwhile, the A-level fireproof effect is achieved, and the personal safety is protected.

Description

Technical Field

[0001] The invention relates to the technical field of metal sound absorbing materials, in particular to metal sound absorbing materials and a preparation method thereof. Background Art

[0002] Sound-absorbing material is a material that can absorb sound energy and reduce noise. Through a large number of micropores and gaps inside it, sound waves can penetrate into the pores of the material and be affected by the friction and viscous resistance of air molecules and the mechanical vibration of small fibers, converting sound energy into heat energy, thereby achieving the effect of absorbing sound.

[0003] In modern society, in order to ensure the practicality of their own residence, people usually install sound-absorbing materials on the walls and ceilings of their homes, thereby achieving sound insulation and reducing the impact of external noise on themselves. Although the sound-absorbing materials ensure the quietness of the user's home, when a fire occurs in the user's home, the sound-absorbing materials cannot play a fire-prevention effect, and may even have a combustion-promoting effect, thereby posing a hidden danger to the user's personal safety and property safety.

[0004] To this end, the prior art proposes a polyester fiber sound-absorbing board, which is made by winding and pressing polyester fiber filaments, but only has Class B fireproof capability and cannot guarantee the personal safety and property safety of users in case of fire.

[0005] In view of this, the present invention proposes a metal sound absorbing material and a preparation method thereof to solve the above-mentioned problems. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a metal sound absorbing material and a preparation method thereof in view of the deficiencies in the above-mentioned prior art.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: The metal sound-absorbing material is made of multi-layer stacked metal nickel fiber wires, the cross-section of the metal nickel fiber wires is hexagonal, and the metal nickel fiber wires are distributed in a mesh structure. The sound-absorbing material made of metal nickel fiber wires has high strength and strong corrosion resistance. At the same time, metal nickel has fireproof properties and plays a Class A fireproof effect in the process of sound absorption and noise reduction.

[0008] Preferably, the metal nickel fiber filaments are made by extrusion and drawing from a shaped spinneret, and the metal nickel fiber filaments are extruded into hexagonal fiber filaments by the shaped spinneret. The hexagonal fibers increase the reflective surface of the metal nickel fiber filaments, thereby enhancing the reflection effect of noise, thereby enhancing the sound absorption and noise reduction effect.

[0009] Preferably, the mesh structure is composed of polyhedral structures connected to each other. The mesh structure has good toughness and good shock absorption effect. At the same time, the polygonal structure allows noise to be reflected multiple times therein, thereby enhancing the noise absorption effect and promoting the sound absorption and noise reduction effect.

[0010] Preferably, the mesh structure is arranged in multiple layers in an alternating manner; the mesh structure is arranged in an alternating manner up and down so that noise can be reflected back and forth between the multiple layers, thereby reducing noise energy, reducing noise volume, and enhancing the effect of sound absorption and noise reduction.

[0011] Preferably, multiple layers of the mesh structure are stacked in sequence to form a sound absorbing board, and the multiple layers of the mesh structure are made into a sound absorbing board, which is then cut according to actual usage to meet the usage requirements of different scenarios, thereby improving the universality of the absorbing material.

[0012] Preferably, the thickness of the sound absorbing panel is 5-30 mm, so that customers can flexibly adjust it according to their required usage scenarios, thereby improving the versatility of the sound absorbing panel.

[0013] A preparation method, the sound absorbing board can be made by processing the metal nickel fiber wire by a mold compression molding method, a scale welding molding method, a laser sintering molding method, or a 3D intelligent printing molding method; The die compression molding method is used to make large acoustic panels for use in large public spaces to reduce noise; The sound-absorbing panels made by the scale welding molding method have a tightly connected mesh structure and a long service life; The sound-absorbing panels made by laser sintering are characterized by high strength and good cushioning and shock-absorbing effects; The 3D intelligent printing molding method is used to quickly make small sound-absorbing panels for sound absorption and noise reduction on the walls of small spaces.

[0014] The present invention adopts the above technical solution to bring the following beneficial effects: 1. The metal sound-absorbing material and preparation method thereof of the present invention is made of metal nickel fiber wire, so that it has good fireproof effect while absorbing sound and reducing noise, realizing the multifunctionality of the sound-absorbing material.

[0015] 2. The metal sound-absorbing material and preparation method thereof of the present invention enhances the reflection effect of noise and the energy consumption of noise through the staggered arrangement of the mesh structure, thereby promoting the sound absorption and noise reduction effect.

[0016] 3. The metal sound-absorbing material and preparation method thereof of the present invention adopts special-shaped fiber filaments to enhance the reflective surface of the metal nickel fiber filaments, thereby enhancing the number of reflections, improving the absorption of noise, promoting the sound absorption and noise reduction effect, and at the same time, ensuring the stability of the connection between the layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the sound absorbing material of the present invention; Figure 2 It is a schematic diagram of the multi-layer mesh structure of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0019] See also Figure 1 to Figure 2 As shown, the metal sound absorbing material and the preparation method thereof of the present invention are made of multi-layer stacked metal nickel fiber filaments, the cross-section of the metal nickel fiber filaments is hexagonal, the metal nickel fiber filaments are made by extrusion and drawing from a special-shaped spinneret, the metal nickel fiber filaments are extruded into hexagonal fiber filaments by the special-shaped spinneret, the hexagonal fibers increase the reflective surface of the metal nickel fiber filaments, thereby enhancing the reflection effect of noise, thereby enhancing the sound absorption and noise reduction effect; The metal nickel fiber wire is distributed in a mesh structure; the mesh structure is composed of polyhedral structures connected to each other, the mesh structure has good toughness and good shock absorption effect, and at the same time, the polygonal structure allows noise to be reflected multiple times therein, thereby enhancing the absorption effect of noise and promoting the sound absorption and noise reduction effect; the mesh structure is arranged in multiple layers in an interlaced manner, and the up and down interlaced arrangement of the mesh structure reduces the reflection space of the noise, shortens the movement formation of the noise, makes it easier for the noise to contact the reflection surface, and then increases the number of noises, so that the noise can be reflected back and forth between multiple layers, thereby reducing the noise energy, reducing the noise volume, and enhancing the sound absorption and noise reduction effect; multiple layers of the mesh structure are stacked in sequence to form a sound-absorbing board, and the metal nickel fiber wire The hexagonal shape enhances the stability of the connection between the layers and ensures the manufacturing quality of the sound-absorbing board. At the same time, the multi-layer mesh structure is made into a sound-absorbing board, and then it is cut according to actual use to meet the use requirements of different scenes, thereby improving the universality of the sound-absorbing material; the thickness of the sound-absorbing board is 5-30mm, and the thickness of the sound-absorbing board is 5-30mm, so that customers can flexibly adjust it according to their required usage scenarios, thereby improving the versatility of the sound-absorbing board; the sound-absorbing material made of metal nickel fiber wire has high strength and strong corrosion resistance. At the same time, metal nickel has Class A fireproof performance, which plays a fireproof effect in the process of sound absorption and noise reduction, effectively isolates the spread of fire, and ensures the personal safety and property safety of users.

[0020] Figure 1This is a schematic diagram of the overall structure of the sound-absorbing material, which shows the structural relationship of the interlaced multi-layer mesh structure.

[0021] Figure 2 This is a schematic diagram of a multi-layer mesh structure, which shows that the mesh structure is composed of polygonal structures connected to each other.

[0022] A preparation method, the sound absorbing board can be made by processing the metal nickel fiber wire by a mold compression molding method, a scale welding molding method, a laser sintering molding method, or a 3D intelligent printing molding method; The mold compression molding method is used to make large sound-absorbing panels for use in large public spaces to reduce noise. The mold compression molding method has the characteristics of small shrinkage and small deformation, which reduces the deformation of the metal nickel fiber wire and ensures the reflection effect of the hexagonal metal nickel fiber wire. At the same time, the sound absorption effect of the sound-absorbing panel is more uniform. The sound-absorbing panels made by the scale welding molding method have a tightly connected mesh structure and a long service life. At the same time, the scale welding molding method can produce a variety of very complex shapes to manufacture special-shaped sound-absorbing panels, such as arcs, to meet different usage scenarios and improve their practicality; The sound-absorbing panels made by laser sintering are characterized by high strength and good cushioning and shock-absorbing effects; the 3D intelligent printing method is used to quickly make small sound-absorbing panels for sound absorption and noise reduction on the walls of small spaces.

[0023] The present invention provides a metal sound absorbing material and a preparation method thereof. There are many methods and approaches to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. Metal sound absorbing material, characterized in that: The metal nickel fiber wire is made of multiple layers of stacked metal nickel fiber wires, the cross section of the metal nickel fiber wires is hexagonal, and the metal nickel fiber wires are distributed in a mesh structure.

2. The metal sound absorbing material according to claim 1, characterized in that: The metal nickel fiber filaments are made by extrusion and drawing from a special-shaped spinneret.

3. The metal sound absorbing material according to claim 1, characterized in that: The network structure is composed of polymorphic structures connected to each other.

4. The metal sound absorbing material according to claim 3, characterized in that: The mesh structure is arranged in multiple layers in an alternating manner.

5. The metal sound absorbing material according to claim 4, characterized in that: Multiple layers of the mesh structure are stacked in sequence to form a sound absorbing panel.

6. The metal sound absorbing material according to claim 5, characterized in that: The thickness of the sound absorbing plate is 5-30 mm.

7. A preparation method, prepared by processing the sound absorbing material according to any one of claims 1 to 6, characterized in that: The sound-absorbing panel can be made by processing the metal nickel fiber wire through mold compression molding, scale welding molding, laser sintering molding and 3D intelligent printing molding.

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