90results about How to "Closely arranged" patented technology

The utility model discloses an efficient refrigeration compressor wire tube condenser, which comprises a condenser body, an air inlet, an air outlet, an air inlet, an air outlet, an air inlet, an air outlet, an air outlet, an air inlet and an air outlet and is characterized in that the condenser body is provided with an inlet end and an outlet end, and a plurality of parallel condensing pipeline parts are arranged between the inlet end and the outlet end; the heat dissipation wires are wound on the condensation pipeline part, and the condensation pipeline part is provided with a plurality of heat dissipation wires which are arranged at equal intervals in the width direction of the condensation pipeline part; the bracket is used for supporting the condenser body; and the intervals of the heat dissipation wires on the condensing pipeline parts which are sequentially arranged from the inlet end to the outlet end are gradually increased. Compared with the prior art, the wire tube condenser solves the problem of low heat dissipation efficiency caused by consistent distribution density of heat dissipation wires on multiple layers of condensation pipelines in an existing wire tube condenser.

The invention discloses an environment-friendly rat-proof and ant-proof intelligent AI early warning cable and a production method thereof, and the cable comprises a central reinforcing core, three control wire cores and three main wire cores are distributed at the outer circumference of the central reinforcing core, and six edge reinforcing cores are filled in gaps at the outer sides of the three control wire cores and the three main wire cores in a saddle shape. A non-woven fabric wrapping layer is arranged outside the control wire cores and the main wire cores, an extruded isolation sleeve is arranged outside the wrapping layer, a steel tape armoring layer is arranged outside the extruded isolation sleeve, an extruded outer sheath is arranged outside the steel tape armoring layer, and a protective layer is arranged outside the extruded outer sheath. The cable has the beneficial effects that the structural stability, bending resistance and tensile resistance of the cable can be improved through design, and monitoring and early warning can be performed on the cable through the optical fiber, so that the service life of the cable is prolonged.

The invention discloses a low-expansion three-temperature cold and hot plate and a preparation method, and belongs to the field of precise alloy components. The cold and hot plate is made of titanium-niobium-based alloy, the titanium-niobium-based alloy comprises, by atomic percent, 25%-35% of Nb, the total content of V and / or Ta smaller than or equal to 3% and the balance Ti, the titanium-niobium-based alloy comprises a three-temperature structure of a low-temperature adaptation area, a normal-temperature stable area and a high-temperature tolerance area, the thickness of the titanium-niobium-based alloy ranges from 1.5 mm to 2 mm, and the surface of the titanium-niobium-based alloy is provided with a nitride layer or a passive film. The preparation method comprises the steps of burdening, 2-3 times of vacuum consumable smelting, hot forging, hot rolling, partition cutting, pre-deformation regulation and control, solid solution quenching, cold rolling finishing, splicing forming and the like, and vacuum stress relief annealing and dual performance detection are matched. The method is suitable for scenes such as chip packaging and precision detection, and is low in cost and high in qualified rate.

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to solve the problem of non-uniform display of the display panel. The display panel is provided with a fan-out area; the fan-out area comprises a first area and second areas located on the two opposite sides of the first area. The first area and the second area are arranged in the first direction; the display panel comprises a plurality of fan-out lines; the plurality of fan-out lines comprise a plurality of first-type fan-out lines and a plurality of second-type fan-out lines; the plurality of first-type fan-out lines are located in the first area, and the plurality of second-type fan-out lines are located in the second area; each first-type fan-out line in the plurality of first-type fan-out lines comprises a first winding part, and the size of the area occupied by the first winding part in the second direction is smaller than the line length of the first winding part; every two adjacent first fan-out lines in the first direction are arranged on different layers. In the thickness direction of the display panel, orthographic projections of the first winding parts of every two adjacent first fan-out lines on the plane where the display panel is located are at least partially overlapped.

The invention discloses a flat panel detector and a method and device for using the flat panel detector. A flat panel detector is constructed on the basis of an amorphous silicon substrate on which a hexagonal pixel pattern is uniformly laid. The hexagonal pixels can be arranged more closely on a two-dimensional plane, and gaps among the pixels are reduced, so that a photosensitive area is maximized with a relatively high filling rate, and the spatial resolution of the detector is improved. And the hexagonal pixels enable a frequency space to generate an angle of 60 degrees, so that the influence of grid artifacts is reduced to a certain extent. Meanwhile, the hexagonal pixel array is effectively processed and optimized by adopting an image reconstruction algorithm, the signal-to-noise ratio of the single pixel of the flat panel detector is improved, and the definition and accuracy of the image are improved.

The utility model relates to the technical field of light-emitting semiconductors, and particularly discloses a vertical LED light-emitting device, which comprises a metal substrate, a light-emitting diode, a Zener diode, a first bonding wire, a second bonding wire and a packaging adhesive layer, the light-emitting diode is fixed above the metal substrate, the Zener diode is fixed on one side of the upper surface of the light-emitting diode, one end of the first bonding wire is connected with an electrode at one end of the metal substrate, the other end of the first bonding wire is connected with the light-emitting diode, and the other end of the first bonding wire is connected with the metal substrate. One end of the second bonding wire is connected with an electrode at the other end of the metal substrate, and the other end of the second bonding wire is connected with the Zener diode; and the packaging adhesive layer covers the metal substrate, the light emitting diode, the Zener diode, the first bonding wire and the second bonding wire. According to the utility model, through the design that the Zener diode is connected with the light emitting diode in parallel, an extra electrostatic protection mechanism is provided for the LED.

Provided in the embodiments of the present application is a megawatt parallel pipe type charging pile cable, specifically: the cable comprises a sheath assembly, a main power line, cooling pipes and core wires; wherein the cooling pipes are at least 4 in number; the sheath assembly covers the main power line, the cooling pipes and the core wires; the cooling pipes are arranged in close contact with the sheath assembly, and the cable is centrally provided with the core wires; the cooling pipes are distributed at equal intervals; the main power line comprises positive power lines and negative power lines, and the positive power lines and the negative power lines are arranged in one-to-one correspondence and symmetry; the positive power lines and the corresponding negative power lines are arranged in close contact with different cooling pipes, respectively. The present application adopts a multi-core split design for the main power line comprising positive power lines and negative power lines, each independent core wire is closely attached to the outer wall of the cooling pipe, heat conduction is strengthened through direct contact, and heat is efficiently transferred vertically to the cooling liquid.

The application belongs to the technical field of carbon-based thermal protection composite materials, and discloses a kind of quick densification high tenacity carbon-based composite material and its preparation method, its preparation steps include: 1) after mixing uniformly benzoxazine resin, solvent and ceramic precursor, heating, first impregnation liquid is prepared;2) first impregnation liquid is brushed on carbon fiber cloth, and naturally air-dried, to obtain pretreated carbon fiber cloth;3) after mixing uniformly benzoxazine resin, solvent, ceramic precursor and ceramic particles, second impregnation liquid is prepared;4) second impregnation liquid is brushed on pretreated carbon fiber cloth, and dried, to obtain prepreg;5) after laminating and laying up prepreg, mould pressing is formed, to obtain blank;6) blank is heated and pyrolyzed under inert atmosphere, to obtain carbon-based composite material.The carbon-based composite material of the application can be formed and simultaneously quickly densified in only one cycle, almost realizes full densification, porosity is less than 1.5vol%, and has excellent mechanical properties and thermal protection performance.

The utility model relates to the technical field of cable equipment, and particularly provides a cable reeling device. The cable reeling device comprises a fixed base and a plurality of cable limiting assemblies, the cable limiting assemblies are evenly distributed along the outer contour of the fixed base and fixedly connected with the fixed base, and each cable limiting assembly comprises a fixed rod and a plurality of clamping structures arranged on the fixed rod in a sleeving mode. The fixing rod is fixedly arranged on the fixing base, the axial direction of the fixing rod extends in the direction perpendicular to the fixing base, the fixing rod is sleeved with the clamping structures in an axial moving mode, and a cable coiling space with a variable interval is formed between every two adjacent clamping structures. The cable reeling device provided by the utility model is used for reducing the conditions of cable damage and disordered storage when underground equipment runs.

This invention relates to the field of lighting technology, and in particular to a white light supercontinuum fiber combiner, a light-emitting unit, and a method for fabricating the same, including N 2 One first input optical fiber, (N-1) 2 The first input fibers consist of a second input fiber and a square output fiber. Multiple first input fibers are arranged in a square array. One or more second input fibers are respectively disposed in the gaps formed between the multiple first input fibers. The square output fiber is fused to the tapered fused ends of the first and second input fibers. N is a natural number greater than or equal to 2. This invention's white light supercontinuum fiber combiner can transmit spectral energy with high quality, offering superior color reproduction compared to traditional white light illumination. It also meets the application requirements for high illumination brightness, effectively solving the problem of insufficient brightness in existing lighting devices.

This invention relates to a thermally insulating and high-pressure resistant polypropylene material, comprising the following components in parts by weight: polypropylene resin, hollow glass fiber, modified nano-ATO, hollow glass microspheres, antioxidant, latex powder, nucleating agent, and lubricant; wherein the modified nano-ATO is a product obtained by coupling nano-ATO with MPS and then copolymerizing it with octadecene and acrylate. Because the modified nano-ATO introduces long alkyl chains of octadecene, which are similar in polarity to polypropylene, the two molecules are more tightly packed through intermolecular forces and entanglement between molecular chain segments. The modified nano-ATO contains ester groups and other oxygen-containing groups that form hydrogen bonds with the hydroxyl groups on the surface of the hollow glass fiber, resulting in strong interactions between the nano-ATO and both the polypropylene matrix and the hollow glass fiber. This gives the modified nano-ATO excellent compatibility and stability with other components, significantly improving the pressure resistance and other mechanical properties of the polypropylene material.

This invention relates to a core-shell structured sodium iron phosphate pyrophosphate cathode material, its preparation method, electrode sheet, and battery, belonging to the technical field of methods or devices for directly converting chemical energy into electrical energy. The core-shell structured sodium iron phosphate pyrophosphate cathode material of this invention comprises primary particles, each primary particle including: a core, a sodium iron phosphate pyrophosphate shell layer disposed on at least a portion of the surface of the core, and a carbon coating layer located within the pores and on the surface of the sodium iron phosphate pyrophosphate shell layer; the core includes a NASICON-type sodium-ion inorganic solid electrolyte with an average particle size ≤50nm; the average thickness of the sodium iron phosphate pyrophosphate shell layer is ≤500nm; the chemical formula of the sodium iron phosphate pyrophosphate shell layer is Na₄Fe₂O₃. 3‑ x M x (PO4)2P2O7, 0≤x≤0.9, M is a doped metal element. The core-shell structured sodium iron phosphate pyrophosphate cathode material of this invention combines high solid density, high conductivity and good electrochemical performance.

This invention provides a turbot spleen tissue cell line, with the accession number CCTCCNO:C2022229. The turbot spleen tissue cell line provided by this invention can be continuously passaged, and experimental results show that it remains stable after 65 passages, providing a large number of stable turbot spleen cells for research on immune function genes, etc. The provided cell line has excellent characteristics; it consists of fibroblasts, with spindle-shaped or irregularly triangular cells, several irregular protrusions extending outward from the cell body, and the cells are closely arranged. It can be passaged every 3-4 days, with high recovery efficiency, and can be used for plasmid transfection, siRNA interference, and various other molecular biology experiments.

The application provides a motor controller module, a vehicle-mounted device and an electric vehicle. The motor controller module comprises a bus capacitor and a waterproof layer. An inner cavity of a shell of the bus capacitor is used to accommodate a capacitor core package. Part of an outer surface of the shell is used to enclose a heat sink to form a cooling flow channel. The cooling flow channel is used to cool a three-phase bridge arm fixed on a side of the heat sink away from the shell. The three-phase bridge arm is used to receive power supply of a power battery of the electric vehicle through the capacitor core package and output three-phase current to drive a motor of the electric vehicle. The waterproof layer is distributed between the cooling flow channel and the capacitor core package. The waterproof layer is used to isolate the cooling flow channel and the capacitor core package, so as to avoid the cooling water of the cooling flow channel from penetrating into the inner cavity of the shell of the bus capacitor and affecting the reliability of the bus capacitor, thereby improving the operation reliability of the vehicle-mounted device.

This disclosure relates to a server node, a server, and a data center. The server node includes a housing and chip units, liquid cooling modules, liquid inlet modules, and liquid outlet modules, all disposed within the housing. There are multiple chip units, each including multiple first chips. There are also multiple liquid cooling modules, with each chip unit corresponding to one of the liquid cooling modules. Each liquid cooling module makes thermally conductive contact with the multiple first chips in its corresponding chip unit to cool the first chips. The liquid inlet and liquid outlet modules are spaced apart along the width of the housing, with the multiple chip units and liquid cooling modules located between the liquid inlet and liquid outlet modules. Each liquid cooling module is connected to both the liquid inlet and liquid outlet modules. This technical solution enables the rational arrangement of multiple chips and chip cooling-related components within a limited housing space.

The utility model provides a novel fixing structure of a high-pressure oil pipe and a cylinder head waste gas pipe, which comprises a motorcycle frame, an engine and an oil tank, the oil tank is fixedly arranged at the front part of the motorcycle frame, the engine is fixedly arranged at the middle part of the motorcycle frame, the high-pressure oil pipe is fixedly connected between the engine and the oil tank, and the high-pressure oil pipe is fixedly connected between the engine and the oil tank. An oil pipeline clamp is fixedly installed between the high-pressure oil pipe and the motorcycle frame, the waste gas exhaust end of the engine is fixedly connected with a cylinder head waste gas pipe, and the cylinder head waste gas pipe is communicated with an air filter installed at the tail of the motorcycle frame. Through the cooperation of the oil pipeline clamp and the combined support, the high-pressure oil pipe and the cylinder head waste gas pipe can be horizontally, orderly and compactly arranged, meanwhile, the directions of the high-pressure oil pipe and the cylinder head waste gas pipe are effectively fixed, abrasion is avoided, and the service life is prolonged.

An engine device 1 includes a common rail 16 configured to store, at a high pressure, a fuel supplied by a fuel feed pump 15. The common rail 16 includes a pressure reducing valve 211 configured to discharge the fuel in the common rail 16 to a fuel return pipe 214. The fuel return pipe 214 extends from the pressure reducing valve 211 to a position higher than the pressure reducing valve 211, and then extends to a position lower than the pressure reducing valve 211.

This utility model discloses an antibacterial bamboo fiber spunlace fabric, including a spunlace fabric body and a structural layer. The absorbent layer of this utility model is made of sponge material, which increases the thickness of the spunlace fabric and has better water absorption, allowing it to retain more moisture. The mesh fabric can make the spunlace fabric body and the absorbent layer more firmly connected and make the spunlace fabric body less prone to tearing, thus improving the strength of the spunlace fabric body. The surface layer is made of interwoven bamboo fiber and hemp fiber, giving the surface a rough surface. The first fiber pad is made of polyester fiber yarn, which has high durability. The second fiber pad is made of cotton fiber, which has good water absorption and can also have a better cleaning effect on stubborn stains. The second cleaning layer is tightly arranged, and the finished product feels close to textiles, making the surface of the second cleaning layer softer, giving the spunlace fabric body a soft cleaning surface.

The application discloses a fireproof and extinguishing material and a preparation method and application thereof, and belongs to the technical field of fireproof and extinguishing materials. The fireproof and extinguishing material solves the problem of poor high-temperature resistance of the existing fireproof and extinguishing materials. The fireproof and extinguishing material is composed of the following components in parts by weight: fly ash 8-24 parts, modifier 0.1-0.5 parts, connecting agent 1-5 parts, inorganic mineral material 15-45 parts, foaming agent 3-8 parts, thickening agent 1-3 parts, flame retardant 0.5-2 parts and water 15-35 parts. The fireproof and extinguishing material can form a more compact structure during extinguishing, and has excellent extinguishing performance.

The utility model discloses a novel double piston mini cylinder body structure, its characterized in that, including cylinder body and set up inside the cylinder body and be used for realizing double -deck pressure boost's double piston structure and set up on the cylinder body with the valve needle cooperation of double piston structure, the inside of cylinder body is supported block and is divided into two complete working cavities, the working cavity is respectively upper piston cavity and lower piston cavity. The utility model has the beneficial effect that: the utility model adopts double piston design through compact layout, realizes higher performance under the same volume, two pistons can work synchronously, provides superimposed thrust, reduces the gas consumption through optimizing the gas circuit design (share intake valve), and the core value of double piston small cylinder is in through structural innovation, breaks through the performance bottleneck of traditional cylinder under the premise of miniaturization, has the power, precision and reliability, especially suitable for the demand of modern industry to high efficiency, intelligence, compact.

The application relates to a wiring mechanism which comprises a mouthpiece, a first structural member and a pressure adjusting assembly, the mouthpiece is used for being connected with a rotating mechanism for winding a wire on a workpiece to be wound, a first clamping part is arranged on the mouthpiece; the first structural member is arranged on the mouthpiece, a second clamping part is arranged on the first structural member, and the first clamping part and the second clamping part are matched for clamping the wire; the pressure adjusting assembly is arranged between the mouthpiece and the first structural member, and the pressure adjusting assembly is used for driving the mouthpiece to move so as to adjust the force applied by the first clamping part to the wire. In the wiring mechanism, the mutual cooperation among the mouthpiece, the first structural member and the pressure adjusting assembly enables the first structural member to apply a set force to the wire, so that the wire has a certain tension, and then the wire can be always hooked by the mouthpiece when wiring, and the wire can be closely arranged on a terminal when winding, thereby reducing the randomness and the defective rate during wiring.

The application discloses a kind of satellite transceiver's dual antenna radio frequency channel isolation circuit, comprising: circuit board, main input port, slave input port and signal processing chip;The input circuit of main input port is divided into two ways on the front of circuit board;First road passes to the back of circuit board and is divided into first subcircuit and second subcircuit;First subcircuit is connected to the back B3M frequency conversion processing circuit by first intermediate layer;Second subcircuit is connected with B1M frequency conversion processing circuit;Second input circuit passes to the back and is connected with auxiliary frequency conversion circuit;The input circuit of slave input port passes to the back and is divided into third input circuit and fourth input circuit;Third input circuit passes to the front and is connected with B3S frequency conversion processing circuit;Fourth input circuit is connected to the front B1S frequency conversion processing circuit by second intermediate layer.The present application carries out frequency conversion processing to slave input signal and main input signal respectively on the front and back of circuit board, reduces the direct coupling and radiation interference between signals.

The invention discloses a current collector with a U-shaped metal sheet and a preparation method of the current collector, and relates to the technical field of batteries. The current collector comprises an organic film, and U-shaped metal sheets are arranged at the two corresponding ends of the organic film; the opening end of the U-shaped metal sheet wraps the organic film to form a composite body, and metal layers are arranged on the upper surface and the lower surface of the composite body. The preparation method of the current collector comprises the following steps: step 1: (1) coating the U-shaped opening end of the U-shaped metal sheet with a conductive adhesive; (2) bonding and curing two ends of the organic film and the opening end of the U-shaped metal sheet respectively to obtain a composite metal sheet base film; and 2, plating metal layers on the upper surface and the lower surface of the composite metal sheet base film to obtain the current collector. The current collector prepared by the method has good resistivity and tensile strength.

This utility model discloses an isostatic pressing device for silicon nitride powder molding, including a conveyor. A sheathing tube is placed at the upper end of the conveyor, and a tube cover is installed at the upper end of the sheathing tube. A mounting plate is fixedly connected to one side wall of the conveyor. Two hydraulic cylinders are installed at the lower end of the mounting plate. Connecting plates are fixedly connected to the output ends of both hydraulic cylinders. A material hopper is fixedly connected to the opposite sides of the two connecting plates. A stirring shaft is rotatably connected to the top inner part of the material hopper. Multiple stirring rods are fixedly connected to the outer wall of the stirring shaft. A spiral blade is fixedly connected to the lower end of the stirring shaft. A through hole is opened at the upper end of the tube cover. The device incorporates a rotating disk, rack, and gears. Under the meshing transmission of the rack and gears, the sheathing tube can reciprocate, causing the powder inside to rearrange under the action of gravity and inertia, providing a uniform material base for subsequent isostatic pressing.

The utility model discloses a battery mounting mechanism and a standby power supply, the battery mounting mechanism comprises: at least one combination support, the combination support comprises a positive electrode support and a negative electrode support, and one side of the positive electrode support facing the negative electrode support is provided with two rows of first accommodating holes at intervals in a first direction; a set included angle is formed between the connecting line between the center points of every two adjacent first containing holes in different rows and the first direction so that a first air channel can be formed in the combined support, and the set included angle is larger than 0. One side, facing the positive electrode bracket, of the negative electrode bracket is provided with a second accommodating hole corresponding to each first accommodating hole; and each first accommodating hole and the corresponding second accommodating hole in the parallel bracket are respectively used for arranging a positive electrode and a negative electrode of one battery cell. According to the scheme, the battery mounting mechanism disclosed by the utility model can be used for arranging each layer of battery cells in a staggered manner according to a certain height difference in the height direction, so that more battery cells can be more closely arranged in a limited space, and the overall height of a product is effectively reduced.

This invention relates to the field of oilfield chemical technology, and discloses a gemini surfactant, its preparation method, and its application. The gemini surfactant comprises the structure shown in Formula I, where R is a C1-C8 alkyl group or a C6-C8 aryl group; Y... ‑ SO3 ‑ M + The ions are alkali metal ions or alkaline earth metal ions; m = 1-30; n = 1-15. The gemini surfactant of this invention can be used as a viscosity reducer for heavy oil, exhibiting strong viscosity-reducing ability. Through the effective increase of the strength of the oil-water interface film via polyoxyethylene and polyoxypropylene segments, it has a good emulsifying effect, which is beneficial for the migration of oil-water emulsions in rock pores, expanding the swept area, significantly reducing residual oil saturation, and resulting in good oil displacement effect.

This utility model belongs to the technical field of cable winding and unwinding equipment, and particularly relates to an anti-tangling cable winding and unwinding device for electromechanical equipment. Addressing the problem that existing cable winding and unwinding devices cannot adjust the cable laying speed in real time according to continuous changes in the cable roll diameter during the winding process, leading to a mismatch between the laying speed and the winding speed, the following solution is proposed: It includes a winding rotor, a clamping rotor, a cable management plate, an adjustment drive box, a stepless speed regulation component, and a hydraulic synchronous adjustment mechanism. The clamping rotor is closely attached to the outside of the wound cable and moves gradually as the cable roll radius increases. A hydraulic synchronous adjustment mechanism is provided between the stepless speed regulation component and the winding rotor. This utility model senses changes in the cable roll diameter through the clamping rotor and continuously adjusts the laying speed via the hydraulic synchronous adjustment mechanism, ensuring that the conductor ring movement speed always precisely matches the winding speed under the current roll diameter. This achieves neat arrangement of the cable throughout the entire winding process and effectively prevents tangling and knotting.

The utility model discloses a bamboo chip arrangement device for bamboo wine barrel processing, which relates to the technical field of bamboo wine barrel processing and comprises a bottom plate, an arrangement annular shell is fixedly mounted at the top end of the bottom plate, a group of rotating rollers are uniformly and rotatably mounted on the inner wall of the arrangement annular shell, and an extrusion component is arranged at the central axis of the arrangement annular shell. A tightening assembly is arranged at the top end of the bottom plate; the extrusion assembly comprises a fixing rod, two first bevel gears are rotatably mounted on the outer wall of the fixing rod, second bevel gears are arranged on the outer walls of the two first bevel gears in a meshed mode, and rotating arms are fixedly mounted on one sides of the outer walls of the two first bevel gears; the two rotating arms can rotate reversely through the extrusion assembly, the bamboo chips arranged on the annular shell are extruded, the positions of the bamboo chips are adjusted, the bamboo chips are arranged more tightly, the time needed for arranging the bamboo chips is greatly shortened, and the working efficiency of the bamboo chip arrangement link in the bamboo wine barrel machining process is remarkably improved.

This utility model relates to the field of building technology, specifically a steel-concrete composite joint with steel plates, including a pipe column and a matching pipe beam. Two sets of orthogonal members are arranged sequentially from top to bottom along the axial direction of the pipe column. Each set of orthogonal members includes two connecting plates that orthogonally pass through the pipe column. Both ends or either end of each connecting plate protrude from the outer wall of the pipe column to form a cantilever structure, with the upper connecting plate and its lower connecting plate protruding in the same manner. The upper connecting plate is inserted into the cavity of the pipe beam and is fixedly connected to the upper cavity wall. The lower connecting plate, which matches the upper connecting plate, is supported on the bottom surface of the pipe beam to form an upper-supporting-lower-top structure. Several sets of this upper-supporting-lower-top structure are arranged at equal heights along the circumference of the outer wall of the pipe column. This utility model ensures the compactness of the structure and the enhanced rigidity of the core area of ​​the joint, while also effectively guaranteeing its load-bearing capacity.