97 results about "Metal sound" patented technology

The utility model discloses a novel magnetic shoe for a servo motor, which comprises a mounting seat, magnetic shoe bodies are mounted on the inner wall of the mounting seat at equal intervals, magnetic shoe substrates are arranged in the magnetic shoe bodies, metal sound insulation plates are arranged on the outer walls of the magnetic shoe substrates, and aluminum fiber sound absorption plates are arranged on the inner walls of the magnetic shoe substrates. Arc-shaped inserting grooves are formed in the positions, at the magnetic tile bodies, of the inner wall of the mounting base, arc-shaped inserting blocks are mounted in the arc-shaped inserting grooves, one ends of the arc-shaped inserting blocks extend to the outer portions of the arc-shaped inserting grooves and are fixedly connected with the outer wall of the metal sound insulation plate, and transmission machine boxes are arranged on the positions, between the magnetic tile bodies, of the inner wall of the mounting base. Locking grooves are formed in the outer walls of the two sides of the magnetic shoe base plate, and a two-way lead screw is rotationally installed in the transmission machine box. The noise reduction performance of the magnetic tile in use is improved, the convenience of the magnetic tile in maintenance is improved, and the purpose of conveniently calibrating and arranging the magnetic tile body is achieved.

The invention discloses a liquid metal acoustic sensing fiber and a preparation method thereof.The sensing fiber is of a skin-core structure and comprises a skin layer and a core layer, the skin layer comprises a polyurethane elastomer, and the core layer comprises a conductive composite layer composed of liquid metal, nano-silver, carbon nanotubes and the polyurethane elastomer; wherein the conductive particles are liquid metal, nano silver and carbon nanotubes. The skin-core structure acoustic sensing fiber is prepared through the liquid metal, nano-silver and carbon nanotube composite conductive material and a coaxial wet spinning process, the skin-core structure acoustic sensing fiber is excellent in conductivity, stretchable, good in acoustic response performance and sensitive to sound waves of different frequencies, the preparation process is simple, large-scale production is easy, the cost is low, and the material is resistant to electromagnetic interference and high in environmental adaptability.

The utility model discloses a nonmetal sound barrier unit plate which comprises a plurality of cement-based sound absorption panels arranged in parallel, a pouring inner mold is arranged on the back side face of each cement-based sound absorption panel, and a back cavity is defined by the pouring inner molds and the cement-based sound absorption panels. Concrete pouring structures are arranged on the periphery of each cement-based sound absorption panel and the pouring inner mold and the back side face of the pouring inner mold, the concrete pouring structures located on the back side face of the pouring inner mold form a back plate, and the concrete pouring structures located between the adjacent cement-based sound absorption panels and the pouring inner mold form joints. The concrete pouring structures located on the outermost peripheries of all the cement-based sound absorption panels and the pouring inner mold form side plates, and reinforcing steel bars are arranged in the side plates in the length direction and the height direction of the unit plates correspondingly. The nonmetal sound barrier unit plate has the advantages of being safe and reliable in structure and excellent in sound absorption and insulation performance and mechanical performance.

The utility model belongs to the technical field of sound barriers, and particularly relates to a composite nonmetal sound barrier unit plate. The non-metal sound barrier unit plate comprises a back plate formed by pouring concrete and a face plate made of ceramic particle sound absorption materials, the back plate and the face plate are connected through a damping deformation layer, and the face plate can float relative to the back plate in a damping mode after being impacted by a load. The sound absorption panel of the non-metal sound barrier unit plate can perform damping floating relative to the back plate, so that the non-metal sound barrier unit plate is more impact-resistant and fatigue-resistant, and has the characteristics of high structural strength, lasting vibration and noise reduction effects and long service life.

The utility model relates to a non-metal sound barrier, which belongs to the technical field of noise protection, and comprises a noise reduction mechanism, a sound absorption cotton plate and a sound insulation plate, the noise reduction mechanism comprises a noise reduction plate, a plurality of internally hollow noise reduction blocks and a plurality of noise reduction sound boxes, a plurality of inserting grooves are formed in the top surface of the noise reduction plate, and a plurality of sound inlet holes communicated with the inserting grooves are formed in the plate surface of the noise reduction plate; the plurality of noise reduction blocks are respectively inserted into the plurality of insertion grooves, and a plurality of sound through holes are formed in the end surfaces of the noise reduction blocks; the two noise reduction loudspeakers are fixed to the two inner side walls of the noise reduction block respectively, and the sound emitting directions of the noise reduction loudspeakers are perpendicular to the axis direction of the multiple sound through holes. According to the utility model, the two noise reduction loudspeakers are fixed on the two inner side walls of the corresponding noise reduction blocks in the length direction of the carriageway, and the sound emitting directions of the noise reduction loudspeakers are vertical to the axes of the plurality of sound through holes, so that the noise generated by vehicles can be greatly reduced by offsetting, and the requirement of residents along the carriageway on low noise is met.

This disclosure relates generally to electronic musical instruments, systems, and methods. More particularly, this disclosure relates to electronic percussion instruments such as tom toms, snare drums, bass drums, cymbals, and hi-hats, and assemblies of instruments (e.g., percussion instruments), such as drum sets. Even more particularly, this disclosure relates to wireless electronic percussion instruments, and percussion instruments with interchangeable and / or removable components to change the instrument between a traditional percussion instrument (that relies on resonance and / or vibration to produce sound) and an electronic percussion instrument. The present disclosure also relates to electronic cymbal instruments, such as cymbal assemblies and hi-hat assemblies, that can be used in conjunction with a traditional acoustic metal cymbal.

The invention relates to the technical field of layered polymer composite materials, and discloses a layered composite noise reduction material for a sound barrier and a preparation method of the layered composite noise reduction material, and the noise reduction material is of an integrated composite structure with a functional skin and a sound absorption core material; the functional skin is prepared by reacting a first premix containing first polyether polyol, aliphatic polyol modified polyether amine and phosphate polyol; the sound absorption core material is prepared by reacting a second premix containing second polyether polyol and epoxy-terminated polysiloxane; according to the preparation method, an integrated forming process is adopted, the first premix is applied into a mold, and when the first premix reaches a gel state but is not completely cured, the second premix is injected to be jointly cured and formed; the problem of interlayer separation is solved, the aliphatic polyol modified polyether amine endows the skin with excellent toughness and weather resistance, the epoxy-terminated polysiloxane ensures the high aperture ratio and sound absorption performance of the core material, and the material is stable in structure, balanced in performance and suitable for the fields of metal sound barriers and the like.

The utility model relates to the technical field of metal sound barrier unit plates, in particular to a waterproof metal sound barrier unit plate which comprises a back plate body and a cover plate, two rock wool layers are arranged in the back plate body, the front ends of the two rock wool layers are each provided with two through holes penetrating front and back, and round grooves are formed in the four corners of the front end of the cover plate. Holes are formed in the inner walls of the four circular grooves, connecting bolts are movably connected into the four circular grooves in a penetrating mode, a plurality of water baffles are fixedly connected to the middle of the front end of the cover plate, a sealing strip is fixedly connected to the outer portion of the rear end of the cover plate, and a plurality of penetrating grooves penetrating front and back are formed in the middle of the rear end of the cover plate; the positions of the penetrating grooves correspond to the positions of the water baffles. According to the waterproof metal sound barrier unit plate, the sealing strips are arranged and matched with the grooves, rainwater is prevented from entering the unit plate, rock wool is prevented from being affected with damp, and the unit plate is prevented from rusting, so that the service life is prolonged.

The utility model discloses an I-type unit plate of a plugboard type metal sound barrier, and relates to the field of sound shielding. Comprising two main beam profiles which are symmetrically arranged up and down; the multiple middle keels are sequentially and fixedly connected between the two main beam profiles in parallel, round through holes are formed in the middle keels, and the ends of the round through holes can be fixedly connected with the corresponding main beam profiles; the sound absorption assembly is arranged in a mounting area formed by the middle keel and the main beam profile; the face and back plate assemblies are arranged on the front side and the rear side of the sound absorption assembly, the upper ends and the lower ends of the face and back plate assemblies are fixedly connected with the corresponding main beam sectional materials respectively, and ethylene-propylene-diene monomer foaming rubber strips are arranged between the face and back plate assemblies and the main beam sectional materials. The end sealing heads are symmetrically fixed to the left side and the right side of the face back plate assembly, and the suspension inhaul cables can penetrate through cavities between the end sealing heads and the adjacent middle keels. The metal sound barrier can prevent the falling risk caused by the problems of displacement, accidental impact, size measurement and the like, and is used for prolonging the fatigue service life of the metal sound barrier.

To facilitate the procurement of materials and to improve workability.SOLUTION: An outer sound absorbing material 31 fitted to close an end space below the expansion device 29 at both ends in the longitudinal direction of the expansion gap 23 corresponding to the width direction of the bridge, and an inner sound absorbing material 41 fitted to close an internal space sandwiched between the end spaces in the expansion gap 23 are provided. A main body 32,42 of the outer sound absorbing material 31 and the inner sound absorbing material 41 is formed of a sound absorbing sponge, and at least a main body 42 of the inner sound absorbing material 41 has a structure in which a mat-like sound absorbing sponge is equally folded in two. The inner sound absorbing material 41 is formed so that the length of a part corresponding to the longitudinal direction of the expansion gap part 23 is shorter than a half of the longitudinal length of the expansion gap part 23, and a plurality of inner sound absorbing materials 41 are fitted while being supplemented. A sound insulation layer 33,43 made of metal is formed on the outer surfaces of the outer sound absorbing material 31 and the inner sound absorbing material 41, which are exposed to the outside when the outer sound absorbing material 31 and the inner sound absorbing material 41 are fitted into the expansion gap 23.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of positioning imaging devices, and discloses a partial discharge positioning imaging device based on acoustics, which comprises an imaging device shell, and a high-speed data acquisition module is mounted on the inner wall of the right side of the imaging device shell; the sensor array is arranged on the left side of the high-speed data acquisition module, a metal sound wave medium is installed on the left side of the sensor array, a soft plastic sound wave medium is installed on the left side of the metal sound wave medium, and a ceramic sound wave medium is installed on the left side of the soft plastic sound wave medium; the additionally-arranged first adjusting driver can finally drive the mounting plate to move towards the left side to be close to the discharging position, and the second adjusting driver can finally drive the ceramic sound wave medium to move transversely, so that the ceramic sound wave medium can be closer to the discharging position and can receive electric pulses at the discharging position more comprehensively; therefore, the positioning accuracy of the imaging device is improved.

The invention discloses a fireproof isolation totally-closed sound barrier which comprises an arch-shaped support installed above a road, the arch-shaped support is provided with a plurality of standard sound barrier units distributed in the longitudinal direction of the road, and a fireproof isolation belt distributed in the transverse direction of the road is arranged every a plurality of spans. The fireproof isolation belt is composed of at least one full-metal sound barrier unit. The standard sound barrier unit of each span comprises a plurality of light-transmitting sound insulation screen bodies which are located on the top and spliced in the transverse direction of a road and a plurality of metal sound absorption screen bodies which are located on the side and spliced in the vertical direction. Each all-metal sound barrier unit comprises a plurality of metal sound absorption screen bodies which are located on the top and spliced in the transverse direction of the road and a plurality of metal sound absorption screen bodies which are located on the side and spliced in the vertical direction. The metal screen bodies with the proper width are arranged in the longitudinal direction of the totally-closed sound barrier at intervals of a certain length, the overall fireproof grade of the totally-closed sound barrier is improved, and losses caused by fire hazards are reduced.

The present invention provides an electrically assisted bicycle that can suppress a metal sound and unnecessary rotation of pedals during gear change.　Provided is an electrically assisted bicycle (1) wherein the magnitude of assistance with pedals (4) is limited from when a first transmission gear ratio is changed to a second transmission gear ratio until when the assistance with the pedals (4) which corresponds to the second transmission gear ratio is started.

The present application relates to the technical field of layered polymer composite material, and discloses a layered composite noise reduction material for sound barrier and a preparation method thereof, the noise reduction material is an integrated composite structure with a functional skin and a sound absorption core material; the functional skin is prepared by reaction of a first premix containing a first polyether polyol, an aliphatic polyol modified polyether amine and a phosphate ester polyol; the sound absorption core material is prepared by reaction of a second premix containing a second polyether polyol and an epoxy-terminated polysiloxane; the preparation method adopts an integrated forming process, the first premix is applied in a mold, and when it reaches a gel state but has not completely solidified, the second premix is injected for co-solidification forming; the present application solves the problem of interlayer separation, the aliphatic polyol modified polyether amine endows the skin with excellent toughness and weather resistance, and the epoxy-terminated polysiloxane ensures high porosity and sound absorption performance of the core material, the material has stable structure and balanced performance, and is suitable for fields such as metal sound barrier.

The utility model discloses a metal sound absorption and insulation composite board, and relates to the technical field of sound insulation and noise reduction. The composite board comprises a composite board body, the composite board body is composed of a galvanized steel plate, a damping sound insulation felt, a light steel keel, glass sound absorption cotton, a wrapping layer and a galvanized perforated plate, the glass sound absorption cotton is filled in the inner side of the light steel keel, and sound absorption glass fabric and a waterproof sound transmission film are wrapped outside the light steel keel and used for water prevention and sound transmission of the composite board. The metal sound absorption and insulation composite board is used for manufacturing a sound insulation and noise reduction device of an equipment sound insulation cover, is usually composed of a cover and can cover a high-noise sound source inside, so that noise is effectively prevented from being transmitted outwards, the influence of the noise on the environment is reduced, the noise can be effectively absorbed, converted and blocked through a multi-layer structure, and the sound insulation and noise reduction effects are good. And noise generated during operation of the equipment is obviously reduced.

The utility model discloses a disc double-sound cylinder, which belongs to the field of double-sound cylinders, and comprises a cylinder body, a handle is fixedly mounted on the outer wall of the cylinder body, a long hole is formed in the outer wall of the handle, double metal discs are arranged in the long hole, the double metal discs are fixedly mounted in the long hole through long nails, and the double metal discs are fixedly mounted in the long hole through the long nails. The outer walls of the two metal dumbbell pieces extend to the outer side of the handle through the long holes, the handle is located in the middle of the outer wall of the cylinder body, the handle and the cylinder body are in a T shape, the two metal dumbbell pieces are perpendicular to the cylinder body, the two metal dumbbell pieces can collide to give out metal sounds when the cylinder body is shaken, and meanwhile when the cylinder body is hit by a hammering hammer, the hammering hammer can be used for hammering the cylinder body. The two metal discs are matched to produce metal sound to realize double timbres of the same musical instrument, when a user wants to produce single tone of a traditional barrel, a player can press the two metal discs by fingers, the two metal discs produce mute or blind sound after being pressed, and the diversity of sound produced by the barrel is improved.

To prevent defects such as scratches on a curtain surface of a shutter curtain 3 spirally wound around a winding body 4 and unpleasant metallic sounds from occurring more effectively than a conventional one-piece sheet material under clamping.SOLUTION: First and second sheet material supply devices 10, 11 are provided, as sheet material supply means W, in a storage space S of a winding body 4 so that first and second sheet materials 10a, 11a are supplied between adjacent curtain surfaces in an overlapping state.SELECTED DRAWING: Figure 15

The utility model relates to the technical field of sound insulation house circuit wiring, in particular to a sound insulation board with a built-in circuit. Comprising a plurality of spliced wallboard bodies, a built-in circuit is pre-buried in each wallboard body, each built-in circuit comprises a JDG pipe and a power line arranged in the JDG pipe, each wallboard body comprises a punched metal acoustic board and an outer board, and the space between the punched metal acoustic board and the outer board is filled with a sound insulation material; the built-in pipeline is arranged in the wallboard body, so that the problem that a sound insulation room is not attractive and not firm due to the fact that the pipeline is externally arranged in the sound insulation room building technology is effectively solved; the circuit is pre-embedded in the board of the sound insulation room, so that the integration level of the circuit is higher; and by arranging the grooves, the wire arrangement grooves, the arc-shaped grooves and the like, on one hand, the wiring difficulty can be reduced, and on the other hand, the main power line can be conveniently fixed.

The application belongs to the technical field of piezoelectric thin film hetero-integration, and particularly relates to a PMN-PT piezoelectric single crystal thin film heterostructure with a metal acoustic wave reflection layer, a preparation method and application thereof. The PMN-PT piezoelectric single crystal thin film heterostructure comprises a silicon substrate, a silicon dioxide insulating layer, a high acoustic impedance metal intermediate layer and a lead magnesium niobate piezoelectric single crystal thin film layer. The lead magnesium niobate piezoelectric single crystal thin film layer is a lead in niobate-lead magnesium niobate-lead titanate single crystal thin film or a lead magnesium niobate-lead titanate single crystal thin film. Compared with the prior art, the PMN-PT piezoelectric single crystal thin film heterostructure can highly localize acoustic wave energy in the piezoelectric single crystal thin film, significantly suppress acoustic wave energy leakage to the substrate, and solve the acoustic leakage, vertical electric field loss and thermal stress mismatch bottleneck of the conventional piezoelectric hetero-integration technology.

The utility model discloses a non-metal sound barrier unit plate carrying device which comprises a carrying bottom frame, a top frame, a V-shaped pull rod, a barrier bearing module and a hoisting module, the carrying bottom frame is of a frame structure with idler wheels arranged at the bottom, the top frame is welded on the top side of the carrying bottom frame, and the V-shaped pull rod is arranged on the front side of the carrying bottom frame. A plurality of groups of barrier bearing modules are arranged on the inner side of the carrying bottom frame at intervals; each barrier bearing module comprises a socket, an inserting rod and a bearing assembly, the sockets are integrally connected to the left outer side edge and the right outer side edge of the carrying bottom frame, and the inserting rods can be fixedly inserted into the sockets. Bearing assemblies are fixed to the insertion rods at intervals and comprise buckles fixed to the insertion rods on the two sides of the carrying bottom frame and bearing ribs connected between the two buckles, and anti-skid particles abutting against the sound barrier plate are arranged on the upper side face and the lower side face of each bearing rib. The carrying equipment is provided with the barrier bearing module, so that the sound barrier can be stressed uniformly in the carrying process, and the sound barrier is prevented from being deformed.

This invention discloses a method and system for tracing the entire lifecycle status of a metal sound barrier, belonging to the field of status tracing technology. The method specifically includes: acquiring raw data of the entire lifecycle of the metal sound barrier; constructing a time-series feature vector based on the raw data; parsing the time-series feature vector to generate a preliminary tracing result; performing anomaly correlation judgment on the preliminary tracing result; generating an enhanced tracing tag when anomalies exist; and constructing a full lifecycle tracing chain based on the enhanced tracing tag and the preliminary tracing result to perform full lifecycle status tracing of the metal sound barrier. This application enables the sound barrier to have a traceable status chain from manufacturing to final service state, which is beneficial for maintenance decisions, controllable service status, and damage evolution assessment.

The utility model provides a rapid dismounting and mounting device for a railway metal sound barrier unit. The rapid dismounting and mounting device comprises a base; the conveying assembly is arranged on the base, a conveying belt is arranged on the conveying assembly, a first combination part is arranged on the conveying belt, and the sound barrier units are detachably connected with the conveying belt through the first combination part, so that the conveying belt conveys the sound barrier units in the forward direction or the reverse direction; the conveying assembly is arranged corresponding to the supporting column for placing the sound barrier unit, the supporting column is provided with a containing cavity for containing the sound barrier unit, and when the conveying belt forwards conveys the sound barrier unit, the sound barrier unit enters the containing cavity; and when the transmission belt reversely transmits the sound barrier unit, the sound barrier unit is moved out of the accommodating cavity. The rapid dismounting device for the railway metal sound barrier unit solves the technical problem that time and labor are wasted in the sound barrier dismounting process in the prior art.

The utility model relates to the technical field of aluminum profiles, in particular to a metal sound barrier aluminum profile which comprises a mounting base, a connecting seat is fixedly connected to the upper end of the mounting base, a mounting groove is formed in the upper end of the connecting seat, a sealing strip is arranged on the inner wall of the mounting groove, and an aluminum profile sound barrier is connected into the mounting groove in a clamped mode. Fixing blocks are fixedly connected to the left portion and the right portion of the front end of the connecting base and the left portion and the right portion of the rear end of the connecting base, connecting blocks are fixedly connected to the ends, away from the connecting base, of the four fixing blocks, and clamping grooves are formed in the opposite faces of every two transverse connecting blocks. According to the metal sound barrier aluminum profile, an aluminum profile sound barrier can be conveniently and rapidly installed, the construction time can be shortened, manpower and material resource investment in the installation process can be reduced, interference of construction to the surrounding environment can be reduced, and the situation that the sound insulation performance of the aluminum profile sound barrier is reduced due to shaking can be avoided; and a good sound insulation effect is always kept.

The utility model relates to the field of sound barriers, and discloses an integrated bending forming metal sound barrier unit plate which comprises a plate body, the plate body is bent and buckled to form a hollow main body structure, a bottom keel and a top keel are arranged at the bottom and the top of an inner cavity of the main body structure respectively, and a sound absorption plate is connected between the bottom keel and the top keel in a clamped mode. The complete hollow shell is formed by bending and buckling the plate body, and the whole hollow shell is in rivet-free connection, so that the situation that a main body structure fails due to failure of rivets in the using process is avoided, and the service life is prolonged.

The utility model discloses a music turntable display device, which comprises a transparent plate, a side wall ring, a sound production plate and a turntable bearing, sound production needles are mounted on the sound production plate, and balls are placed on the sound production plate. According to the utility model, the side wall ring and the sounding plate are fixedly connected, the side wall ring and the transparent plate installed above define the closed main body, then the closed main body is integrally and rotatably connected with the turntable bearing, the turntable bearing is installed and fixed on the bracket, and the bracket is integrally installed and fixed on the support frame, so that the whole body formed by the side wall ring and the sounding plate can freely rotate within the range of 360 degrees; during demonstration, the side wall ring is rotated, so that the steel balls on the sounding plate impact the metal sounding needles with different lengths at different positions in the rotating process, and then a fair sound melody is made; the demonstration device is simple in overall structure and reliable in protection, the internal structure still has high stability after being used for many times, the demonstration device can be placed in public places such as science and technology museums for demonstration and free interaction, and the maintenance cost and the maintenance frequency are reduced.

The invention discloses a metal-elastomer adhesive film-metal sound insulation composite material and a preparation method and application thereof, and belongs to the technical field of metal-elastomer adhesive film-metal sound insulation composite materials. The preparation method disclosed by the invention comprises the following steps: carrying out epoxy group grafting modification on an elastomer to obtain a modified elastomer; blending and melting the modified elastomer and silicon dioxide particles, and carrying out calendering treatment to obtain an elastomer adhesive film; and the elastomer adhesive film and a metal material are subjected to hot pressing, and the metal-elastomer adhesive film-metal sound insulation composite material is obtained. The method solves the technical problem that an existing preparation method is difficult to realize excellent vibration reduction and tear resistance at the same time.

The invention relates to a sound insulation structure, a curtain wall system and a curtain wall sound insulation method, the sound insulation structure is used between a building structure and a curtain wall structure, and the sound insulation structure comprises a sound insulation plate layer, a damping layer, a vibration reduction layer and a metal sound insulation plate; the sound insulation board layer, the damping layer and the vibration reduction layer are combined and stacked to form a sound insulation assembly. The metal sound insulation plate is used for being fixedly arranged between a building structure and a curtain wall structure, and the outer side end face of the metal sound insulation plate is connected with the sound insulation assembly. The air cavity is formed between the damping layer and the sound insulation board layer adjacent to the damping layer or between the damping layer and the vibration reduction layer adjacent to the damping layer, and the sound insulation board has the advantage that the sound insulation effect is enhanced.

The invention relates to the technical field of sound barrier installation, in particular to a nonmetal sound barrier transfer installation lifting appliance. According to the technical scheme, the lifting appliance comprises a lifting appliance supporting assembly and two linkage transmission assemblies installed on the two sides of the lifting appliance supporting assembly, and supporting type tray assemblies which conduct corresponding clamping according to the shapes of different types of nonmetal sound barriers are installed below the linkage transmission assemblies. The supporting type tray assembly is adjusted and inserted for multiple times along the mounting opening of the mounting assembly on the ground, and the position after fine adjustment and the position of the mounting assembly on the ground are in a vertical corresponding state, so that direct insertion type mounting of the non-metal sound barrier and the mounting assembly below is facilitated; therefore, manual adjustment of the non-metal sound barrier is reduced, the installation safety of the non-metal sound barrier is improved, and compared with a traditional mode that a lifting machine drives the non-metal sound barrier to adjust the installation position back and forth, the method does not need too skilled professional skills of workers.

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.

The utility model discloses a fiber toughening nonmetal sound barrier curing kiln which comprises a kiln body, the kiln body is provided with a kiln door, an inner cavity of the kiln body is provided with a curing portion and a heating portion, the heating portion is located on any one side or multiple sides of the periphery of the curing portion, the curing portion comprises a base arranged at the bottom end of the inner cavity of the kiln body, and the base abuts against a plurality of placing frames. The heating part comprises a pipe frame, the pipe frame is provided with a heat exchange pipe connected to an external heating medium generating device, and a plurality of cooling fins are arranged on the outer side face of the heat exchange pipe at intervals. The positions of every two vertically-adjacent placing frames are locked through the positioning pieces, the situation that the multiple placing frames are staggered, inclined and toppled when the multiple vertically-stacked placing frames are transferred is prevented, and the number of the placing frames is flexibly adjusted according to the number of the sound barriers. The contact area of the heat exchange pipe and air in the inner cavity of the kiln body is increased through the cooling fins, heat provided by a heating medium is fully utilized, the heating efficiency of the inner cavity of the kiln body is improved, and the heating time is saved.