23 results about "All ceramic" patented technology

This utility model discloses a composite liner for a bauxite ball mill, relating to the field of ball mill technology. It includes an outer connecting ring, with a mounting plate connected to the inner wall of the outer connecting ring. A buffer mechanism is provided between the outer connecting ring and the mounting plate. A modular system is provided on the side of the mounting plate away from the outer connecting ring. The modular system includes multiple ceramic liner plates that adhere to the surface of the mounting plate away from the outer connecting ring. All ceramic liner plates have an arc-shaped structure, and staggered protrusions are provided at both ends of each ceramic liner plate. A fastening mechanism is provided inside the outer connecting ring, the mounting plate, and the ceramic liner plates, and an expansion component is provided at the connection between the fastening mechanism and the ceramic liner plates. This utility model, through a series of structures, forms a multi-layered composite structure, which enhances the overall wear resistance, buffering, and noise reduction performance, facilitates individual replacement of worn areas, and prevents the overall installation from loosening.

The invention relates to the technical field of inorganic non-metallic materials, provides a full-ceramic integrated vacuum cup and a laser microstructure heat resistance method thereof, and solves the problem that integrated full-ceramic vacuum sealing and efficient heat preservation cannot be realized due to limitation of materials, structures and processes of existing inorganic non-metallic materials. The cup comprises a cup body and a sealing cover arranged at the top of the cup body, the cup body comprises an annular opening part and an interlayer cup body which are sequentially arranged from top to bottom, the interlayer cup body comprises an inner layer and an outer layer which are arranged at an interval, and a heat insulation cavity is formed between the inner layer and the outer layer; a process hole is formed in the bottom of the interlayer cup body and is communicated with the heat insulation cavity; a heat-resistant layer is arranged on the outer surface of the interlayer cup body, and the heat-resistant layer has the surface appearance from the micron level to the submicron level; the laser microstructure heat-resistant layer with specific roughness is arranged on the outer surface of the interlayer cup body, so that heat loss caused by high heat conductivity of a ceramic material is reduced.

This invention discloses a dual-function cage structure for ultra-high temperature, high-speed all-ceramic ball bearings, belonging to the field of all-ceramic bearing technology. The cage is made of silicon nitride, silicon carbide, or zirconium oxide and includes a guiding structure and a lubrication and protection structure. The guiding structure is an arc-shaped fitting pocket for high-precision guidance. The lubrication and protection structure consists of an annular lubrication storage cavity, a gradient aperture slow-release channel, and a capillary transport structure connected in sequence to form a synergistic lubrication system, which can suppress high-temperature volatilization, overcome centrifugal oil spillage, provide quantitative slow release, and ensure precise oil supply. This invention achieves dual-function coupling of guidance and lubrication, reducing the friction coefficient by ≥35% and increasing service life by ≥60%. It is suitable for ultra-high temperature, high-speed, and extreme operating conditions in aerospace, high-end equipment, and other fields, and has high engineering application value.

The invention discloses an abradable / environmental barrier composite gradient coating with a self-healing function and a preparation method of the abradable / environmental barrier composite gradient coating, and belongs to the technical field of abradable coatings. The four-layer structural design of the Si bonding bottom layer, the Yb2Si2O7-S environmental barrier middle layer, the Yb2SiO5-S environmental barrier middle layer and the LaMgAl11O19-polybenzoate-A abradable surface layer is adopted, and corrosion protection compactness and abrasion protection porosity are both considered through gradient matching of thermal expansion coefficients of materials of all the layers. The coating adopts a full-ceramic coating design without a solid lubricant, a porous easy-to-wear structure is formed through a polybenzoate pore-forming phase, the strength of the coating is improved in cooperation with high-temperature oxidation repair of a self-healing phase, and durability and abradability are balanced. And a differentiated self-healing matching strategy is utilized to ensure that the materials have good chemical compatibility. The preparation process is simple and convenient, has the advantages of low cost and easiness in industrial production, and is suitable for large-scale batch production.

The magnetic driver comprises an outer bearing seat, a machine frame and a bearing seat which are fixedly connected, a transmission shaft penetrates through the bearing seat and the machine frame, a full-ceramic bearing is arranged at the upper end in the bearing seat, a radial magnetic suspension bearing is arranged at the lower end in the bearing seat, a magnetic transmission part is arranged at the upper end of the transmission shaft, and a magnetic bearing is arranged at the lower end of the transmission shaft. The upper end of the bearing seat is provided with an inflow port, the lower end of the bearing seat is provided with an outflow port, the upper end in the bearing seat is provided with a cleaning fluid distributor, the cleaning fluid distributor is communicated with the inflow port, and a runner is arranged in the rack; through the combination of the full-ceramic bearing and the radial magnetic suspension bearing which are arranged inside and the circular arc transition design of the internal flow channel, no dead angle of the flow channel is realized, so that the cleaning and sterilization of the driver are effectively realized, the driver can adapt to special industries needing highly clean and sterile environments, and the service life of the driver is prolonged. And the practicability of the device is improved.

The utility model discloses a full-ceramic shell of a temperature sensor, which comprises a support, a gasket and a temperature sensing cover body, and the support, the gasket and the temperature sensing cover body are all made of ceramic materials. According to the utility model, the support, the gasket and the temperature sensing cover body which are all made of ceramic materials are adopted, so that the insulating performance of the temperature sensor shell is remarkably improved, the influence of electromagnetic interference on temperature sensor elements is effectively avoided, and the measurement accuracy of the sensor is improved; meanwhile, due to the high temperature resistance of the ceramic material, the temperature sensor can work normally in a high-temperature environment, the application range of the temperature sensor is widened, reliable protection is provided for temperature sensor elements, and it is ensured that the temperature sensor can work accurately and stably. The ceramic material can be aluminum oxide ceramic, silicon nitride ceramic and the like, so that different requirements on high temperature resistance, corrosion resistance and insulation can be met.

The utility model relates to the technical field of resistors with ceramic shells, in particular to a processing and assembling device for resistors with ceramic shells. According to the technical scheme, the machining and splicing device for the resistor with the ceramic shell comprises a machining table and further comprises a rotary assembling assembly, an assembling assembly and a vibration feeding disc; a rotary assembling assembly is arranged at the upper end of the machining table. Assembling assemblies are arranged on the periphery of the rotary assembling assembly; a vibration feeding disc is arranged on the outer side of the assembling assembly. According to the utility model, the servo motor of the rotary assembling component drives the gear box to drive the turntable to rotate, and is matched with the dynamic adjustment of the clamping cylinder of the assembling component, so that the ceramic shell resistors on all resistor assembling clamps can be assembled independently in the assembling process, and the assembling efficiency is improved.

The utility model discloses a multifunctional automatic brick paving machine based on visual segmentation, and relates to the technical field of brick paving equipment, the multifunctional automatic brick paving machine comprises a brick paving machine main body, the brick paving machine main body is provided with a cement vibration module, a three-axis linkage cutting module, a ceramic tile feeding module, a four-axis linkage adsorption module, a cement paving module, a walking module and a control module; the cement vibration module comprises a cement barrel body and a cement barrel vibration device; the three-axis linkage cutting module comprises a three-axis mechanical arm and a cutting device, and the cutting device is installed on a mobile terminal of the three-axis mechanical arm; the ceramic tile feeding module can drive all ceramic tiles to move upwards. The four-axis linkage adsorption module comprises a four-axis mechanical arm, a tail platform is installed on a mobile terminal of the four-axis mechanical arm, and a visual module and a vacuum suction cup are installed on the tail platform; the cement tiling module is used for tiling cement in the cement barrel body on the ground; the walking module is used for driving the brick paving machine body to move. The ceramic tile cutting device can cut ceramic tiles and then install the ceramic tiles.

The utility model relates to a cooling fan capable of preventing a bearing from being corroded, which aims at solving the technical problem that the existing similar products lack the structural design that a stainless steel shaft core is adopted in a hub and the stainless steel shaft core at the bearing is combined with a ceramic coating. The radiating fan is characterized in that ceramic coatings are respectively arranged on the surfaces of at least two ends of a stainless steel shaft core in a hub of the radiating fan, an upper bearing and a lower bearing are respectively and fixedly arranged in a middle pipe of a frame body at the ceramic coatings, and the stainless steel shaft core is fixedly arranged in the middle pipe of the frame body through a clamping groove and a retaining ring at the tail end of one side of the lower bearing and a plastic gasket. A spring is arranged on the outer diameter of the stainless steel shaft core on the outer side of the upper bearing; two ends of the spring respectively abut against the upper bearing and the inner wall of the hub; a motor shell assembly is arranged in the hub, the magnet is arranged on the inner wall of a motor shell of the motor shell assembly, the stainless steel shaft core and a center shaft in the motor shell are riveted into a whole through a shaft sleeve, and one end of the spring abuts against the shaft sleeve. Therefore, a traditional metal shaft core or a full-ceramic shaft core is replaced by plating the ceramic coating on the surface of the stainless steel shaft core.

The utility model relates to the technical field of filtering equipment, in particular to a sealing component mounting structure of a ceramic membrane, which comprises a mounting plate arranged on the inner wall of a filter cylinder, and the mounting plate is provided with a plurality of mounting holes for mounting ceramic membrane tubes; the fastening assembly is used for locking the movable pressing plate on the mounting plate. According to the utility model, the pressing sleeves are detachably arranged on the movable pressing plate, so that the movable pressing plate can drive all the pressing sleeves to extrude the first sealing ring, and when the ceramic membrane tubes on the mounting plate need to be disassembled independently, the corresponding ceramic membrane tubes can be taken out from the movable pressing plate only by disassembling the pressing sleeves of the ceramic membrane tubes from the movable pressing plate; when all the ceramic membrane tubes on the mounting plate need to be dismounted, all the ceramic membrane tubes can be taken down from the mounting plate only by dismounting the fastening assembly and separating the movable pressing plate from the mounting plate, so that the ceramic membrane tubes can be flexibly mounted and dismounted.

The invention discloses a high-temperature-resistant integrated ring-focus antenna with a ceramic dielectric metallized structure, which comprises double reflecting surfaces of the ceramic dielectric metallized structure, and the double reflecting surfaces comprise a main reflecting surface supporting structure and an auxiliary reflecting surface supporting structure which are made of ceramic materials. Metal layers are plated on the inner surfaces of the main reflecting surface supporting structure and the auxiliary reflecting surface supporting structure, a feed source is arranged at the bottom of the main reflecting surface supporting structure, a radome is arranged at the top of the auxiliary reflecting surface supporting structure, and the radome is integrated with the auxiliary reflecting surface supporting structure and the metal layer on the surface of the auxiliary reflecting surface supporting structure. A heat shield can be arranged between the main reflecting surface supporting structure and the auxiliary reflecting surface supporting structure. The VSWR (Voltage Standing Wave Ratio) of the ring focus antenna is less than or equal to 1.75 in a frequency band from 34.4 GHz to 35.4 GHz, and the gain range of 32.7 to 34.3 dBi can be realized. Within 1500s when the antenna window is continuously loaded with the high temperature of 1200 DEG C, the temperature of the feed source port is 27 DEG C and 34 DEG C respectively when the heat shield exists or not.

The invention belongs to the technical field of semiconductor manufacturing equipment, and particularly relates to a full-ceramic aluminum nitride electrostatic chuck and a preparation method thereof. According to the invention, the aluminum nitride / metal ceramic composite material is adopted as the heating element and is combined with the aluminum nitride matrix to replace the traditional metal heating element; by accurately controlling oscillation pressure and temperature curves, rearrangement and densification of ceramic particles are promoted, co-sintering of a matrix and a heating element is achieved, and a high-density and high-strength interface is obtained. And finally, the high-performance full-ceramic aluminum nitride electrostatic chuck with long service life is obtained. According to the invention, the long-standing problem of a metal-ceramic interface is solved, and a key component with higher reliability, long service life and excellent temperature control performance is provided for semiconductor preparation.

The application discloses a kind of burn-resistant flexible mineral fireproof cable and preparation method thereof.The cable includes metal pipe sheath cable core;Metal pipe sheath cable core outside has two mineral fire-retardant mud layers from inside to outside, namely first mineral fire-retardant mud layer and second mineral fire-retardant mud layer;The first mineral fire-retardant mud layer is the mud mixture of ceramic reaction powder raw material plus water;Second mineral fire-retardant mud layer is glass batch raw material;The ceramic phase generation temperature of the ceramic reaction powder raw material of the first mineral fire-retardant mud layer is higher than the glass transition temperature of the glass reaction powder raw material of the second mineral fire-retardant mud layer.The first mineral mud layer of the present application under sustained high temperature, under the protection of the second mineral mud layer in viscoelastic state, complete ceramic reaction occurs, forms the dense structure of ceramic layer, improves cable body hardness and fireproof performance, maintains the structural stability of flexible mineral fireproof cable, avoids cable failure.

A method for preparing a full ceramic dental restoration having an integral core and shell structure, in which a digital build model of the dental restoration is built and then the obtained CAD dataset is divided into at least two different CAD partial datasets, one of which defines the contour of the core structure and the second partial dataset defines the contour of the shell structure, a green body of the core structure is produced by means of the first CAD partial data set, and a green body of the shell structure of the prosthesis is produced by means of the second CAD partial data set. The core and shell structures are then joined together in the state of a green body, then the green body is subjected to a heat treatment to remove the binder, and then the assembly is sintered to obtain a finished dental restoration. The method enables the manufacture of dental prostheses with improved aesthetic properties without significant additional efforts compared to the manufacture of unitary prostheses.

The invention discloses a high-safety high-voltage switch, and relates to the technical field of high-voltage switchs.The high-voltage switch comprises a bottom plate, a box body is fixedly connected to the top of the bottom plate, a top plate is fixedly connected to the top of the box body, a high-voltage switch body is fixedly connected to the top of the bottom plate, and a circuit breaking mechanism is arranged in the box body; a heat dissipation mechanism is arranged in the box body, and a dustproof mechanism is arranged in the box body. An electromagnetic relay can control an electric telescopic rod to lift a ceramic sleeve through a low-voltage control circuit, on-off of a high-voltage switch is controlled through a small circuit, control is safe, and when the ceramic sleeve switches on and off the high-voltage switch, an air pump can be controlled to be started through a second electromagnetic relay; the high-pressure spray head can spray high-speed airflow to perform air-blast arc extinguishing on the high-pressure switch, the safety of the high-pressure switch during on-off can be ensured by matching with the arc extinguishing cover, heat in the box body is quickly cooled through the heat dissipation mechanism, and the internal environment of the box body is ensured to be at a safe temperature.

This utility model discloses a cold water tank pulley guiding device, relating to the technical field of chemical fiber production equipment. It includes a cold water tank with a pulley shaft at the bottom. A polytetrafluoroethylene (PTFE) pulley is rotatably mounted on the pulley shaft via a full ceramic bearing. The PTFE pulley has multiple wire guide grooves on its sidewall. The use of the PTFE pulley and full ceramic bearing effectively avoids the problem of traditional metal bearings easily corroding and jamming in cold water environments, improving the stability and service life of the device. Simultaneously, the multiple wire guide grooves on the sidewall of the PTFE pulley make the monofilament guiding process smoother, improving the dragging and jamming phenomenon during the production of soft monofilaments, ensuring the smooth passage of monofilaments through the cold water tank, and guaranteeing a stable cooling rate for the monofilaments, thereby improving the appearance and performance uniformity of the finished product.

The present application belongs to the technical field of refractory materials, and discloses a hot-state repairing material composite ceramic fiber blanket and a hot-state repairing construction method thereof. The hot-state repairing material composite ceramic fiber blanket comprises, from top to bottom, an upper layer, a filling layer and a bottom layer; a plurality of staggered partition cloths are arranged between the upper layer and the bottom layer, the partition cloths are vertically arranged to form a net structure to divide the filling layer into a plurality of small cells, and the hot-state repairing material is filled in the small cells; and the upper layer, the bottom layer and the partition cloths are all ceramic fiber cloths. The hot-state repairing material is combined with the ceramic refractory fiber, the hot-state repairing material is filled in the small cells in the ceramic fiber blanket through structural design, the ceramic fiber blanket is used during transportation and construction, the advantages of the fiber blanket, such as high integrity and fast construction, are fully exerted, the ceramic fiber blanket is converted into a hard overall furnace lining after construction and sintering, and the fast sintering repairing performance of the hot-state repairing material is exerted.

1. Name of the design product: all-ceramic tweezers. 2. Use of the design product: for clamping articles. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The utility model belongs to oxygen lance technical field especially relates to a kind of ceramic oxygen lance for small nonferrous copper side-blown converter, it is characterized in that, including furnace nozzle, connecting sleeve and oxygen pipe, furnace nozzle, connecting sleeve and oxygen pipe are all ceramic parts, flange for being connected with furnace body side wall and connecting pipe for air entering are equipped on connecting sleeve, furnace nozzle is also connected with flange, oxygen pipe is coaxially arranged with furnace nozzle, the air inlet end of oxygen pipe is connected by screw with connecting sleeve;Furnace nozzle is equipped with necking one;The connecting place of furnace nozzle, connecting sleeve and oxygen pipe is equipped with sealing ring.The utility model has the beneficial effects of:with high strength, low density, high temperature resistance and other advantages.Air flow passage uses venturi structure, can realize the pressurization and drainage effect of fluid, can maximumly reduce the adverse effect of fluctuation change of inlet pressure on the concentration of oxygen-enriched air, make combustion effect more stable, improve the safety of production.

The invention discloses a full-ceramic ball bearing crack tracing method based on fusion of vibration signals and machine learning. The method comprises the following steps: collecting the vibration signals and preprocessing the vibration signals into a standardized sequence; performing multi-resolution complex wavelet packet transformation and time window normalization to generate a frequency adaptive feature tensor; inputting an improved echo state network to generate a frequency band state matrix through recursion; after splicing, inputting into a cross-frequency aggregation reserve pool to execute feedback coupling, and generating an aggregation state vector; reconstructing the topological state tensor of the bearing according to the structure sequence; constructing an energy-kurtosis gating factor updating tensor, outputting a gating state sequence, obtaining a crack result through position classification and severity regression, and performing iterative correction; and outputting a crack result and writing into a maintenance archive. According to the method, multi-structure crack accurate tracing is realized, and the diagnosis precision and the recognition stability can be improved.

Magnetic suspension supporting system and magnetic suspension magnetic force driver. The main problem of the current magnetic force driver internal supporting system is that the chemical inert lubricating grease or full ceramic bearing scheme is used, and the supporting system is exposed in the medium environment. The first magnetic ring assembly (3) is arranged on the outer wall of the rotating shaft, and the second magnetic ring assembly (4) matched with the first magnetic ring assembly is arranged in the support; the first magnetic ring assembly and the second magnetic ring assembly are coaxially arranged; the first magnetic ring assembly comprises a permanent magnet ring (31) and a sleeve ring (32) made of soft magnetic material, and the permanent magnet ring is used for magnetizing the sleeve ring. The magnetic suspension supporting system and the magnetic suspension magnetic force driver are provided, the mechanism of magnetic suspension is adopted to realize that the device does not need to specially design a lubricating system, the medium is not polluted, the high cleanliness production requirement is realized, the wear problem of the traditional rolling bearing and the transmission shaft is avoided, the transmission resistance is reduced, and the efficiency of the transmission device is improved.

The application provides a kind of full ceramic bearing defect deterioration identification and prediction method based on digital twinning, it is related to bearing health management and operation and maintenance field.The method first acquires the vibration signal data generated in the whole process of machine starting to stopping of full ceramic bearing in real time and carries out bearing interval vibration coupling decoupling processing;Based on the material, structure and working condition parameters of full ceramic bearing assembly, a full ceramic bearing defect dynamics model that can completely express centrifugal force and gyroscopic moment is constructed;Based on the decoupled measured vibration signal, a closed-loop control mechanism for model dynamic updating and parameter correction is designed, realizing high-fidelity mapping between physical space and virtual space;Digging the correlation between the defect parameters after dynamic updating and the characteristics of the measured vibration signal, a quantitative mapping relationship between them and the defect degree of full ceramic bearing is constructed, relying on the digital twinning model to predict the defect deterioration process, realizing the operation and health monitoring of full ceramic bearing.

This invention relates to the field of inorganic non-metallic materials technology, providing an all-ceramic integrated vacuum insulated cup and its laser microstructure heat insulation method, solving the problem that existing inorganic non-metallic materials cannot achieve integrated all-ceramic vacuum sealing and efficient heat insulation due to material, structural, and process limitations. The invention includes a cup body and a lid located on top of the cup body. The cup body includes an annular opening and a partition cup body arranged sequentially from top to bottom. The partition cup body includes an inner layer and an outer layer spaced apart, forming a heat insulation cavity between the inner and outer layers. A process hole is provided at the bottom of the partition cup body, communicating with the heat insulation cavity. A heat-insulating layer with a micron to submicron surface morphology is provided on the outer surface of the partition cup body. By providing a laser microstructure heat-insulating layer with a specific roughness on the outer surface of the partition cup body, the heat loss caused by the high thermal conductivity of the ceramic material itself is reduced.