35results about How to "Avoid melting" patented technology

The application discloses an environmental protection gas load switch and belongs to the electrical equipment field, which is used to solve the problem of how to inhibit or eliminate the arc generated when the static contact and the moving contact of the load switch are disconnected. The environmental protection gas load switch comprises a shell, a moving contact, an operating mechanism, a first static contact and an arc extinguishing device. The moving contact is rotatably arranged in the interior of the shell, the operating mechanism is used for controlling the rotation of the moving contact, and the first static contact is fixedly arranged in the interior of the shell. The arc extinguishing device comprises a shell body, a rotating arm, a vacuum bubble and a reset spring, the shell body is fixedly arranged on the shell, the rotating arm is rotatably arranged on the shell body and is provided with an electrically conductive part, the electrically conductive part is arranged on the rotating path of the moving contact, the vacuum bubble is arranged on the shell body, and the two ends of the vacuum bubble are electrically connected with the electrically conductive part and the first static contact respectively, and the reset spring is arranged between the rotating arm and the shell body. When the moving contact is disconnected with the first static contact, the moving contact is electrically connected with the electrically conductive part.

The utility model belongs to the technical field of steam ovens, and particularly relates to a self-cleaning oven which comprises an oven body, a steam system, a lighting system, a heating pipe system and a control system. The steam system comprises a boiler device which is installed on the rear side of the inner container and used for converting water into steam and providing the steam into the inner container to heat food; the boiler device comprises an air inlet pipe leading to the interior of the inner container, an air inlet pipe installation hole is formed in the inner container, the air inlet pipe is arranged in the air inlet pipe installation hole in a penetrating mode, a connecting piece is arranged at the end of the air inlet pipe, and an air inlet pipe sealing piece is arranged between the connecting piece and the side wall of the inner container and made of high-temperature-resistant materials. The connecting piece and the inner container are connected through the air inlet pipe fixing piece, so that the connecting piece enables the air inlet pipe sealing piece to abut against the inner container located on the edge of the air inlet pipe installation hole, the gap between the air inlet pipe and the inner container is sealed, air leakage of the inner container is avoided, the stability of the inner container during working is guaranteed, and normal operation of the steaming oven is guaranteed.

A lightning protection structure of an outdoor tower type meteorological monitoring station relates to the field of meteorological monitoring equipment and is used for improving the safety and stability of a down lead and prolonging the service life of the down lead. The outdoor tower type meteorological monitoring station lightning protection structure comprises a tower type support, a meteorological monitoring element, a lightning arrester, a downlead, a grounding device, a quartz sleeve and a shielding net. A vertical cavity is formed in the middle of the tower-shaped support and penetrates through the tower-shaped support. A plurality of meteorological monitoring elements are arranged, and the meteorological monitoring elements are distributed on the tower-shaped support. The lightning arrester is fixedly arranged on the top of the tower-shaped support and located on the upper side of the vertical cavity. The down lead is electrically connected with the lightning arrester, the down lead is vertically arranged on the tower-shaped support, and the two ends of the down lead penetrate through the vertical cavity; the grounding device is fixedly arranged underground, and the lightning arrester is electrically connected with the grounding device; the quartz sleeve is arranged in the vertical cavity and sleeves the outer side of the down lead; and the shielding net is made of a high-permeability material and is arranged outside the quartz sleeve.

This utility model provides a battery, a battery pack, and a battery device. The battery includes a shell, a cover plate, terminals, and an insulating component. The cover plate covers the opening of the shell to form the outer shell of the battery, and has mounting holes. The terminals pass through the mounting holes, with their end faces exposed. The insulating component is located between the outer periphery of the terminals and the inner edge of the mounting holes, providing insulation for the terminals and the cover plate. The end faces form welding positions for busbar welding. Since the minimum distance d1 between the insulating components and the heat deformation temperature k of the insulating components satisfy 300 mm·℃ ≤ d1*k ≤ 1900 mm·℃, the welding position area and weld length can be guaranteed, ensuring the current carrying capacity of the terminals and busbars, while preventing the insulating components from melting under the residual heat of welding, thereby ensuring the insulation performance of the insulating components.

This utility model discloses a dilution tank lid with an additive input mechanism, relating to the field of dilution tank technology. The utility model includes a lid body and an additive input mechanism. A stirrer mounting position is provided at the axial center of the lid body. The additive input mechanism includes an input pipe and a reinforcing beam. The input pipe consists of an outer section, a bent section, and an inner section connected sequentially. The input pipe includes an inner pipe and an outer pipe, with several ribs between them, forming a water-cooling cavity. This utility model, by designing an input pipe with a combined inner and outer pipe, can form a pipeline with circulating water cooling capacity, avoiding the problem of premature softening and melting of the additive due to high temperatures, ensuring the quality of the additive. Simultaneously, the water cooling capacity ensures that the input pipe can extend to the axial region inside the tank, avoiding the area of ​​the cooling coil, optimizing the feeding position, improving mixing efficiency and reaction uniformity, and enhancing the performance of the dilution tank.

The invention relates to the technical field of optical fiber illumination, and discloses a flexible optical fiber light guide column illumination system, which comprises an optical fiber bundle, a control box and a light source emission assembly, and is characterized in that an optical splitter, a reflector and a lens are mounted in the control box; the light source emitting assembly comprises a shell, a fan and a laser emitter, the laser emitter is installed in the shell, the emitting end of the laser emitter extends out of the shell, and the fan is installed on the shell and conducts heat dissipation on the laser emitter in the shell; an entrance port is formed in the bottom surface of the control box, and exit ports are formed in the surfaces of the two corresponding sides of the control box; the laser beam emitted by the laser is divided into two groups of branch light beams by the optical splitter, the two groups of branch light beams can be respectively emitted into the end parts of the two groups of adjacent optical fiber bundles through the reflecting mirror, and the end parts of the optical fiber bundles can be prevented from being melted by heat generated by the laser in the use process through the arrangement.

The invention discloses a direct high-temperature regeneration method of a waste lithium iron phosphate positive plate in a water vapor atmosphere. The method comprises the following steps: directly placing the positive plate obtained by discharging and disassembling the waste lithium iron phosphate battery into a reaction container, directly regenerating at 600-650 DEG C by taking superheated steam as a gasification medium, and removing aluminum foil after the regeneration process is completed, thereby obtaining the regenerated lithium iron phosphate positive plate. According to the method provided by the invention, the structure of lithium iron phosphate can be completely repaired at a relatively low temperature, and aluminum foil fusion is avoided. Compared with a traditional recycling process, the method has the advantages that complex pretreatment steps such as smashing, screening and stripping are omitted, material loss is reduced, the whole process is mild and environmentally friendly, and the method is short in process and easy and convenient to operate.

The utility model discloses a kind of ozone decomposition cylinders, comprising: outer cylinder, inner cylinder and cylinder cover, inner cylinder is sleeved in the cavity of outer cylinder, and the bottom of inner cylinder is provided with through hole, and the outer wall of inner cylinder is provided with several annular partitions;Cylinder cover is installed in the top of inner cylinder and outer cylinder, and cylinder cover is provided with air inlet and exhaust hole, air inlet is communicated with inner cylinder, exhaust hole is communicated with the cavity between outer cylinder and inner cylinder, and air inlet and exhaust hole are all equipped with gas pipe;While cylinder cover is also provided with heating rod mounting hole outside heating rod connection.The utility model also discloses a kind of ozone decomposition device, comprising: the ozone decomposition cylinder and PLC controller, heating rod and temperature sensor.The utility model can efficiently, completely decompose residual ozone in online water quality analyzer, prevent oxidation corrosion.

The utility model relates to the technical field of ice caps, in particular to an anti-slip ice cap which comprises a cap body and a neck supporting protection pad, the cap body comprises a double-layer rubber layer, an annular opening is formed in the inner side of the double-layer rubber layer, an invisible zipper is fixed to the edge of the annular opening, a plurality of ice columns are arranged in an interlayer of the double-layer rubber layer, and the neck supporting protection pad is arranged in the interlayer of the double-layer rubber layer. A fixing piece is further fixed in the interlayer of the double-layer rubber layer, by arranging the fixing piece, each ice column is fixed in the placing hole of the heat preservation layer, ice blocks are prevented from sliding, moving and gathering to a certain position when a patient turns over or moves, chilblain is reduced, meanwhile, the brain oxygen consumption can be reduced, brain cells can be protected, and the patient can feel comfortable. And by arranging the containing bag, the double rubber layers and the sealing ring, the conditions of ice column melting and liquid leakage can be avoided, the ice column fusion time is shortened, and the comfort level of a patient is improved.

The utility model discloses a stepped tungsten rod electrode of a discharge lamp and the discharge lamp. Comprising a tungsten rod electrode body, the front end of the tungsten rod electrode body is a working end, the working end is used for being arranged opposite to a cathode of a discharge lamp, and the rear end of the tungsten rod electrode body is used for being connected with a supporting rod. According to the stepped tungsten rod electrode of the discharge lamp and the discharge lamp, the technical problems that the heat dissipation effect of the increased surface area is poor due to the fact that a plurality of heat dissipation grooves are evenly formed in the tungsten rod electrode in an existing discharge lamp, if a metal machining mode is adopted, the heat dissipation grooves cannot achieve the deep and thin technology, and if laser is used for grooving, the efficiency is very low are solved.

The utility model belongs to the technical field of power capacitor manufacturing, and particularly relates to a composite capacitor core shaft and a capacitor element. The composite capacitor core shaft comprises a core shaft body provided with a regular hexagon through hole, the core shaft body is composed of insulators, annular long holes are formed in the wall thickness of the two ends of the core shaft body in the length direction of the core shaft body, and an insulator interval is arranged between the two ends, close to each other, of the two annular long holes to form isolation. Heat conduction metal bodies are inserted into the two annular long holes respectively, the heat conduction metal bodies and the mandrel body are integrally formed, and the ends, away from each other, of the two heat conduction metal bodies make contact with metal spraying layers at the two ends of a metallized film on the capacitor element so that heat transfer of the capacitor element can be achieved. The internal hot spot temperature of the capacitor element is effectively reduced, the transverse heat conduction efficiency of the capacitor element is improved, the heat transfer effect is further improved, and the problem that heat dissipation and heat balance in the capacitor element with the enlarged geometric size become poor is solved.

The invention discloses an optical fiber balloon catheter, and relates to the technical field of medical instruments. Comprising a catheter, a balloon arranged at the tail end of the catheter, an optical fiber penetrating through the catheter and extending into the balloon, a dodging pipe fitting and a sleeve. The light uniformizing pipe fitting axially extends along the interior of the balloon, is provided with a near end and a far end which are opposite to each other, and is used for scattering light emitted by the optical fiber to realize uniform illumination; the sleeve is connected to the near end of the dodging pipe fitting and sleeved outside the optical fiber, and comprises a central positioning part formed on the through hole of the sleeve; the centering positioning part is used for positioning the optical fiber penetrating through the centering positioning part on the central axis of the dodging pipe fitting; wherein the optical fiber is inserted into the near end of the dodging pipe fitting on the central axis of the dodging pipe fitting after penetrating through the central positioning part of the sleeve, and an optical fiber section located in the dodging pipe fitting is provided with a light emitting part. The optical fiber can be centered and positioned in the dodging pipe fitting, and local overheating of the dodging pipe is prevented.

The utility model relates to the field of floor processing, and discloses a temperature control assembly of a device for pasting a mute film on a plastic floor, which comprises a heating barrel, two sides of the heating barrel are fixedly connected with connecting frames, one end, far away from the heating barrel, of each connecting frame is fixedly connected with a connecting seat, and the side wall of each connecting seat is provided with a distance adjusting mechanism. And the distance adjusting mechanism comprises two sets of fixing blocks, the surface of the bidirectional threaded rod is in threaded connection with two sets of threaded sleeves, the surfaces of the threaded sleeves are hinged to hinge rods, and a flow adjusting assembly is arranged at the top end of the connecting cylinder. According to the utility model, the two-way threaded rod is rotated to drive the threaded sleeve and the hinge rod to move, so that the variable-diameter plate is pushed to slide in the sliding chute of the connecting seat, and the positions of the connecting block and the air outlet are further adjusted. The accurate adjustment ensures that the hot air can be uniformly distributed on the mute film, and the problem that the mute film is melted due to excessive concentration of the hot air is avoided.

The utility model discloses a kind of segmented cutting equipment, comprising: support frame;Support roller assembly, support roller assembly is placed in the top of the support frame, and the support roller assembly includes driven roller and the driving roller for driving material rotation;Support plate, support plate is placed in the side of the support frame, and the side of the support plate is lifted and is provided with the compression roller for material from the top limit;Cutting machine, cutting machine is lifted and is arranged in the side of support plate, the beneficial effects of the utility model are: driving roller and driven roller form dynamic support, drive PVC film roll uniform speed rotation by friction force, cooperate the top limit of compression roller, ensure that material conveying is stable without deviation;Double-shaft air cylinder drives lifting plate, combined with limit rod and sliding slot design, can quickly adjust the height and horizontal position of compression roller, adapt to different specifications film roll;Linear module and positioning round table combination, realize material axial accurate positioning by adjusting cross bar height and round table position, ensure that segmented cutting length is consistent, error is controllable.

The invention relates to the technical field of magnesium sulfate production, in particular to a centrifugal separation method for magnesium sulfate production and processing, which comprises the following steps: adjusting a feeding component, atomizing and dispersing magnesium sulfate slurry, reversely conveying to the inner wall of a drum, starting centrifugal separation of the drum, synchronously scraping materials on the inner wall, and stopping to discharge solid materials after separation is completed. By arranging a feeding and centrifugal matching structure, compared with a traditional direct falling type feeding mode, the adjustable atomization dispersion and reverse rotation feeding mode is adopted, slurry can be evenly scattered and spread on the inner wall of the centrifugal drum in a thin and flat mode, each part of slurry can be fully subjected to the centrifugal force effect, and the centrifugal effect is improved. The solid-liquid separation thoroughness is greatly improved, the water content of a solid finished product is effectively reduced, the magnesium sulfate crystal purity is improved, meanwhile, feeding parameters can be adjusted according to the slurry concentration, the centrifugal separation device is suitable for separation operation of magnesium sulfate slurry with different concentrations, and the application range of the centrifugal separation device is widened.

The invention provides a battery top cover, comprising: a pole provided with a pole main body part and a pole positioning part protruding in the horizontal direction relative to the main body part; the top cover plate is provided with a top cover plate main body part and a vertical protruding part protruding from the top cover plate main body part in the vertical direction; the fixing component is arranged above the vertical protruding part; the fixing component comprises a connecting part and a blocking part, the connecting part is located right above the vertical protruding part, the connecting part is connected with the vertical protruding part in a welding mode, the blocking part is located above the pole positioning part, and seen from the vertical direction, the blocking part is connected with the pole positioning part in a welding mode. At least one part of the blocking part is overlapped with the pole positioning part, and the welding part is not overlapped with the pole positioning part. According to the battery top cover and the battery using the top cover, welding does not participate in sealing of the top cover and only plays a fixing role, so that the heat influence of welding on sealing in the top cover manufacturing process is solved, and the sealing performance of the battery top cover is improved.

The utility model provides a kind of battery, battery pack and battery device, it is related to battery structure technical field, battery includes shell, shell has accommodating cavity, shell has opening in one end;Cover plate, cover plate is used to cover opening, and mounting hole is opened in cover plate;Pole, the first end of pole is worn in mounting hole;Insulating component, insulating component is located between the outer periphery of pole and the inner edge of mounting hole;And busbar, busbar is welded with the first surface of pole;The material quality that busbar adopts includes first metal and first alloy element doped in first metal, the melting point of first alloy element is higher than the melting point of first metal;The welding area between busbar and the first surface of pole on the first surface of pole is ratio a, and the content ratio b of first alloy element in busbar, between both satisfy: 0.00001≤a*b≤0.05.The utility model can solve the problem of melting insulating component when busbar is welded.

The utility model provides a kind of packing machine longitudinal sealing device, belong to packing machine technical field.It solves the spacing between sealing device in the longitudinal sealing device of existing packing machine cannot be adjusted, after completing sealing, heating structure long time heating sealing device is easy to cause overheating phenomenon between two sealing devices, make packaging bag between it melt, affect the use of packing machine problem.This packing machine longitudinal sealing device, including left sealing part and right sealing part, left and right sealing part is respectively provided with left side plate and right side plate, left sealing part and right sealing part have left sealing disc and right sealing disc, eccentricity is provided with moving ring on the bottom of left sealing disc and right sealing disc on pipe shaft, fixed seat connected with left side plate and right side plate is set on pipe shaft, two fixed blocks are installed between left side plate and right side plate, two handle adjusting components are set on the fixed block.The utility model has the advantages of preventing overheating, preventing parts from being damaged due to high temperature.

This utility model discloses a real-time cooling device for longitudinal and transverse sealing of a powder packaging machine, relating to the field of powder packaging machine technology. It includes a housing body and two drive shafts. The inner sides of the two drive shafts are provided with the same frame body. A support plate is slidably installed on the inner side of the housing body. A longitudinal sealing unit is fixedly installed on the side end of the support plate. The lower half of the longitudinal sealing unit is provided with a water inlet pipe, and the upper half of the longitudinal sealing unit is provided with a water outlet pipe. A transverse sealing module is located inside the frame body. The transverse sealing module includes a front heat sealing module, a rear heat sealing module, a front condenser pipe, and a rear condenser pipe. Pre-tightening clamps are provided on the inner sides of both the front and rear heat sealing modules. The distance between the front and rear heat sealing modules can be adjusted by an electric telescopic rod. Simultaneously, the pre-tightening clamps ensure tightness during the heat sealing process and prevent the material from melting or deteriorating due to heat.

This application discloses a method for preparing and applying a positive electrode for a polymer lithium-ion battery, belonging to the field of lithium-ion battery technology. The preparation method includes: using a carbon fiber woven fabric as a receiving substrate, electrospinning a polyacrylonitrile solution to deposit polyacrylonitrile nanofibers on the surface and interfiber spaces of the carbon fiber woven fabric; pre-oxidizing the carbon fiber woven fabric with deposited polyacrylonitrile nanofibers; and subsequently performing heat treatment in a sulfur-containing atmosphere to convert the polyacrylonitrile nanofibers into sulfurized polyacrylonitrile nanofibers in situ, thereby obtaining the positive electrode. The positive electrode prepared by this application has high specific capacity, high cycle stability, and excellent structural compatibility, and is suitable for all-carbon fiber structure lithium-sulfur batteries.

The utility model discloses a transfer device for refrigeration house equipment, which comprises two support frames, two lifting seats are arranged on the surfaces of the top ends of the support frames, a servo motor is arranged on one side of each lifting seat, and transmission rollers are arranged at the top ends of the two lifting seats on one side of the servo motor. A conveyor belt is arranged on the surface of the outer wall of the transmission roller, a heat shield is arranged above the two sides of the lifting base, an infrared sensor is arranged on the inner side of the heat shield, indicator lamps are arranged at the two ends of the heat shield, inclined panels are arranged on the upper sides of the two ends of the heat shield, a mounting frame is arranged on the surface of the lower end of each inclined panel, and an air blower is arranged at one end of each mounting frame. The heat insulation cover and the air blower are arranged, the temperature of the environment where goods in the transfer channel are located is isolated from the outside under protection of the heat insulation cover, the air blower blows cold air in the refrigeration house into the channel formed by the heat insulation cover and the conveying belt, and the channel environment of the transfer equipment can be rapidly cooled and protected.

This invention provides an assembly process for a die assembly, comprising a cathode assembly, an anode assembly, and an exhaust pipe assembly. The assembly process includes the following steps: pressing the magnetic pole K side, pressing the cathode, welding the entire die, leak detection, venting, removing the anodized layer, pressing the antenna cap, die withstand voltage testing, and die aging. During venting, the total venting time is 50-60 minutes, and the heating temperature is 580℃-680℃. The venting process consists of 12 steps, and the pressure change is controlled by time, filament current, and anode voltage. Venting removes air from the die assembly, creating a vacuum. The heating temperature of 580℃-680℃ is used to release gas from the die components and further improves the vacuum level using the principle of gas thermal expansion and contraction. It also prevents melting of the first and second welded positions. The pressure change control through time, filament current, and anode voltage allows for more precise control.

This application discloses a method for fabricating a back-contact solar cell and the same back-contact solar cell. The method includes: S100, irradiating a portion of the second transport layer on the back side of the semi-finished back-contact solar cell with a first laser, forming a first oxide layer on the portion of the second transport layer away from the semiconductor substrate from the laser-irradiated area; wherein the first laser-irradiated area corresponds to a target isolation area, and the size of the first laser-irradiated area in a first direction is greater than or equal to the size of the target isolation area in the first direction; S200, fabricating a transparent conductive layer covering a first polarity region and a second polarity region; S300, using a second laser to perform isolation treatment on the transparent conductive layer, forming a target isolation area located within the overlapping area of ​​the first projection and the second projection. The first oxide layer can absorb the second laser used to isolate the transparent conductive layer, avoiding damage to the second transport layer, thereby increasing the isolation resistance of the PN isolation region.

The utility model provides a chocolate packaging box convenient to take for several times. The chocolate packaging box comprises a box body, a sealing cover and a bearing tray. A taking opening is formed in one end of the box body, and the sealing cover is detachably arranged outside the taking opening in a sleeving mode. The bearing tray is arranged in the box body in a sliding mode, a storage groove used for containing chocolates is formed in the top face of the bearing tray, and a plurality of spot-breaking cutting lines are arranged on the bearing tray. A pressing piece is further arranged in the taking opening and perpendicularly arranged on the inner wall of the top of the taking opening, a plurality of cutting sawteeth are arranged at the bottom end of the pressing piece, and a taking channel is formed between the cutting sawteeth and the inner wall of the bottom of the taking opening. According to the chocolate packaging box convenient to take and use for several times, consumers can take and use chocolates for several times conveniently, the breaking difficulty of the chocolates is reduced, and the remaining chocolates are prevented from being polluted.

The utility model relates to the field of plastic processing, and discloses high-speed stirring equipment for thermoplastic elastomer preparation, which comprises a bottom stirring tank, an upper stirring tank and a high-speed motor, a support frame is fixedly arranged at the lower end of the outer side of the bottom stirring tank, and a heating plate is fixedly arranged in the inner wall of the bottom stirring tank. A rotating column is rotatably arranged at the upper end of the upper stirring tank, eight stirring paddles fixedly sleeve the outer side of the rotating column, a scraping plate fixedly sleeves the outer side, close to the lower end, of the rotating column, four through holes are formed in the position, close to the middle, of the lower end of the upper stirring tank, and feeding ports are fixedly formed in the positions, close to the two sides, of the upper end of the upper stirring tank. According to the utility model, after materials are added from the feed port, the high-speed motor is started, various materials can be fully stirred in the upper stirring tank, after the materials enter the bottom stirring tank, the heating plate is started, due to the rotation of the stirring paddle, molten materials in the bottom stirring tank can also be stirred, and meanwhile, the scraping plate can effectively scrape residues adhered to the inner wall.

This invention discloses a method for live pipeline leak sealing based on in-situ metal growth and its application, belonging to the field of online repair technology for pressurized pipelines. The method includes: pre-treatment of the leaking area; forming a repair layer consisting of a metal transition layer and a metal-ceramic composite layer in the leaking area using low-temperature solid-state deposition technology without interrupting pipeline operation; and finally, post-treatment of the repair layer by shot peening and low-temperature laser polishing to improve its density and surface properties. This invention employs low-temperature processes such as cold spraying, completely avoiding the risks of hot work operations and achieving safe and efficient repair under pressurized pipeline conditions. The gradient functional repair layer formed by this invention has high bonding strength with the pipeline substrate and excellent corrosion resistance and erosion resistance, making it particularly suitable for repairing pressurized pipeline leaks in the power, chemical, and marine engineering fields where continuous production is required.

A plastic drying device is provided with: a container (11) in which a plastic sheet (P) is accommodated; a microwave generation unit (12) that irradiates the inside of the container (11) with microwaves; and a vacuum pump (13) that communicates with the inside of the container (11) and vacuumizes the inside of the container (11).

The application belongs to the technical field of ceramic material preparation, and specifically relates to a method for rapidly preparing hafnium oxide ceramic fibers, which comprises the following steps: dissolving hafnium-containing organic precursors in an organic solvent, preparing organic precursor fibers through an electrostatic spinning process, performing solidification treatment on the organic precursor fibers, placing the organic precursor fibers in a reaction chamber of a microwave plasma device, introducing treatment gas, applying microwave power, performing plasma treatment on the organic precursor fibers to convert the organic precursor fibers into hafnium oxide ceramic fibers, turning off the microwave source after the treatment is completed, naturally cooling the obtained product to room temperature, and obtaining hafnium oxide ceramic fibers. The hafnium oxide ceramic fibers prepared by the method are prepared by using microwave-excited plasma, have excellent toughness and elasticity, and are not prone to brittle fracture when subjected to bending or tensile stress. The process flow of the method is short, and the energy consumption is low, so that the method provides a new technical path for the rapid preparation of high-performance hafnium oxide ceramic fibers.

The invention relates to a mineral insulated fire-resistant cable, which comprises a joint, and the joint comprises a housing, two ends of which are respectively connected with two adjacent cables through locking members; the cable is connected with the fixing units in an inserted mode, the two fixing units are symmetrically arranged, and a plurality of first contacts are arranged on the fixing units; the isolation execution unit is connected to the outer side of the fixing unit in a sleeving mode, the isolation execution unit is connected with the fixing unit in a sliding mode, second contacts are arranged at the two ends of the isolation execution unit respectively, and when the two adjacent cables are in a conductive state, the first contacts and the second contacts are in a connected state; the trigger unit is connected to the outer side of the isolation execution unit in a sleeving mode, and the trigger unit can drive the isolation execution unit to move, so that the two adjacent cables are located in a power-off device; the anti-springback unit surrounds the inner wall of the shell, the outer wall of the trigger unit is fixedly connected with the anti-springback unit, a groove is formed in the anti-springback unit, and the groove is filled with a high-temperature-resistant material.