122results about How to "Avoid disadvantages" patented technology

The invention discloses a multi-sensor fusion unmanned aerial vehicle environment monitoring and early warning system, and relates to the technical field of environment monitoring and early warning, and the system comprises the following components: an unmanned aerial vehicle platform which is used as a carrying basis of sensors and data processing equipment and has excellent flight stability and strong cruising ability; according to the invention, by introducing a task planning mechanism based on autonomous learning, the unmanned aerial vehicle can continuously learn and optimize the flight strategy when executing the monitoring task, the innovation point significantly improves the efficiency of task execution, and the unmanned aerial vehicle can perform real-time monitoring according to the actual environment feedback and historical task data. The unmanned aerial vehicle can automatically adjust the parameters of the flight path, speed and height to avoid adverse factors and select the optimal path, and meanwhile, the unmanned aerial vehicle is endowed with strong scene adaptability by the autonomous learning ability, so that the unmanned aerial vehicle can quickly respond to a complicated and changeable natural environment or a sudden emergency, and smooth completion of a task is ensured.

The invention relates to the technical field of logistics transportation, and discloses a medical article intelligent transportation method and device based on task scheduling and a medium, and the method comprises the steps: generating transportation tasks of to-be-transported medical articles, and sorting the transportation tasks according to the priorities of the to-be-transported medical articles; scheduling a target medical transport robot corresponding to a transport task in the transport task sequence according to the real-time working state; controlling the target medical transportation robot to execute a medical article transportation action; environment data and task execution states in medical article transportation are monitored in real time, and robot redistribution strategies corresponding to the to-be-transported medical articles are generated according to the task execution states and the task emergency degrees; determining an optimization factor of the initial transportation track according to the transportation state; and the initial transportation track is dynamically optimized through the optimization factor and the environment data, and the redistribution medical robot is controlled to execute the medical article transportation action according to the optimized initial transportation track. The efficiency of medical article transportation can be improved.

The invention belongs to the field of ceramic tile adhesives, and particularly discloses a modified organic silicon polymer for a ceramic tile adhesive, the ceramic tile adhesive, a preparation method and application. The preparation method comprises the following steps: reacting bis (3-aminopropyl) terminated polydimethylsiloxane with bisphenol A diglycidyl ether; and then adding sec-ammonia silane and continuously reacting to obtain the modified organic silicon polymer for the ceramic tile adhesive. The prepared modified organic silicon polymer can be used for preparing high-performance ceramic tile glue with excellent elasticity, adhesion, hydrophobicity and heat resistance, the defects of traditional cement-based ceramic tile glue are overcome, and the preparation method is simple, convenient, easy to implement, environmentally friendly and wide in application prospect.

The invention belongs to the field of electrochemical sensors, and relates to an electrochemical sensor for high-sensitivity detection of carbendazim and a preparation method of the electrochemical sensor. The surface of a glassy carbon electrode (GCE) is modified with an LDMS-CCN-GCT nanocomposite material prepared from dendritic large-aperture mesoporous silica, conductive carbon black nanoparticles and graphitized carbon nanotubes, and a CCN-GCT-LDMS / GCE working electrode is formed. The preparation method comprises the following steps: firstly, uniformly dispersing CCN and GCT in an N, N-dimethylformamide solution through magnetic stirring in an ultrasonic environment, wherein the CCN and the GCT are equal in mass; then, adding LDMS into the solution, and carrying out ultrasonic dispersion to obtain a uniformly mixed CCN (at) GCT (at) LDMS suspension; and finally, dispensing the uniform suspension onto the surface of GCE, and drying under an infrared lamp to prepare the working electrode CCN (at) GCT (at) LDMS / GCE modified by the CCN (at) GCT (at) LDMS nano composite material. Based on the synergistic effect generated by LDMS and CCN-coated GCT, the CCN-coated GCT-coated LDMS / GCE sensor is high in sensitivity, the detection limit can reach 7.36 nM, and the CCN-coated GCT-coated LDMS / GCE sensor has excellent carbendazim sensing detection performance.

The utility model discloses a pressing type double-tar-storage electronic cigarette structure which comprises a suction nozzle, a cigarette cartridge upper cover, upper guide sealing silica gel, a guide support, an atomizing core assembly, an external tar bin, tar inlet hole sealing silica gel, lower sealing silica gel, a cigarette cartridge base and a battery assembly, the upper end of the atomizing core assembly is filled in the suction nozzle, and an annular filling groove is formed in the guide support. The annular filling groove is filled with the upper guide sealing silica gel, an installation step is arranged at the upper end of the guide support, the lower portion of the suction nozzle and the atomization core assembly are both filled in the guide support, the smoke cartridge upper cover is buckled to the upper end of the step of the guide support, the smoke cartridge base is filled with the lower sealing silica gel, and the upper portion of the smoke cartridge base is installed in the external oil bin. The oil inlet hole sealing silica gel is arranged corresponding to the oil inlet hole of the oil inlet pipe, the battery assembly is installed below the smoke cartridge base, and the battery assembly is electrically connected with the atomization core assembly. The utility model belongs to the technical field of electronic cigarettes, and particularly provides a pressing type double-tar-storage electronic cigarette structure.

The invention discloses a preparation method and application of a pure-phase 2D perovskite passivation layer. According to the method for preparing the two-dimensional perovskite passivation layer with the single n value, passivation molecules directly react on the surface of the perovskite absorption layer through a hot pressing method to generate the two-dimensional perovskite with the single n value, on one hand, defects on the surface and the grain boundary of the perovskite can be effectively passivated, non-composite radiation centers of a perovskite thin film are reduced, and the performance of the two-dimensional perovskite passivation layer with the single n value is improved; the energy level of the solar cell is adjusted, so that the photoelectric conversion efficiency of the solar cell is improved; and on the other hand, the passivated perovskite thin film can inhibit ion migration, so that the stability of the solar cell is effectively improved. The perovskite thin film passivation method is easy to operate, large-scale production can be achieved, and the defects caused by a solvent method can be effectively overcome. The method can also be used for processing a large-area perovskite thin film, so that a new strategy is provided for preparation of a perovskite module.

The utility model relates to a detection system for a slide wire, which comprises a moving mechanism capable of moving along the slide wire; the first temperature sensor is arranged on the moving mechanism and is used for detecting the temperature of the slide wire; the camera is arranged on the moving mechanism and is used for shooting an image of the sliding contact line; the alarm device is used for carrying out alarm operation when the temperature of the slide wire is greater than a first preset temperature; a first communication connection exists between the control device and the first temperature sensor, a second communication connection exists between the control device and the camera, and a third communication connection exists between the control device and the alarm device; the control device is configured to receive the temperature of the sliding contact line from the first temperature sensor, receive the image of the sliding contact line from the camera when the temperature of the sliding contact line is larger than a first preset temperature, and activate the alarm operation of the alarm device. The utility model further relates to a transportation facility. According to the utility model, a continuous, automatic, reliable and efficient detection scheme is realized.

The invention discloses a system load balancing method and system based on network connection regular detection. The method comprises the following steps: (1) acquiring actual service load pressure as a distribution index; (2) obtaining the number of connection unit instances in the target cluster, setting a historical load coefficient and a real-time load coefficient, and setting a priority adjustment period; (3) calculating a historical priority; (4) calculating a real-time priority; (5) calculating a comprehensive priority and carrying out distribution connection; (6) repeating the step (3) to the step (5) until the service load level is relatively balanced among the instances; according to the invention, dynamic load balancing of the business pressure between the service instances of the connection units is realized.

The invention relates to a method for establishing a rock creep failure time prediction model under a conventional triaxial compression condition. The method comprises the following steps: performing conventional triaxial compression tests on a target rock under n groups of different creep stresses under preset confining pressure to obtain n creep curves; for any creep curve, acquiring creep failure time and constant-speed creep rate corresponding to the creep curve, so as to obtain a plurality of to-be-fitted points; linear fitting is carried out on the multiple to-be-fitted points to obtain a fitting curve, fitting parameters of the fitting curve are obtained, and the fitting parameters comprise the slope and the intercept; and obtaining a rock creep failure time prediction model of the target rock under the conventional triaxial compression condition according to the fitting parameters. When the model is used, only the target rock needs to be tested subsequently, and the damage time can be predicted according to the model when the creep rate is monitored, so that constructors can conveniently take protective measures in advance.

The invention discloses a molecular sieve-based flame-retardant material and a preparation method thereof, the molecular sieve-based flame-retardant material comprises a hollow molecular sieve and a flame retardant, the hollow molecular sieve is a hollow structure with micropores, and the flame retardant is coated or embedded in the micropores and the hollow structure of the hollow molecular sieve and / or the crystal surface of the hollow molecular sieve; the preparation method comprises the following steps: C1, introducing a flame retardant into the hollow molecular sieve through a dipping or dissolving method, so that the flame retardant is partially adsorbed in micropores and / or on the surface of the hollow molecular sieve; c2, mixing a hollow molecular sieve containing a flame retardant with the crystallization solution, and carrying out a hydrothermal heavy crystallization reaction at 120-180 DEG C; c3, after the re-crystallization reaction is finished, separating the sample in a filtering or centrifuging manner, cleaning the sample with deionized water, and removing an unreacted crystallization solution; and C4, drying the sample separated in the step C3 to obtain the molecular sieve-based flame-retardant material. The heat stability and the flame-retardant effect are improved.

The application discloses a method and system for rapidly predicting a creep stress index of a tin-based solder alloy by integrating a model, collects element compositions, test temperatures and creep stress index values of the tin-based solder alloy from literature, and adds experimental data as dataset samples; the element compositions and test temperatures of the tin-based solder alloy are sorted out and used as features for modeling; the dataset is randomly divided into a training set and a test set in a 4:1 ratio; the collected creep stress index values of the tin-based solder alloy are used as target variables, and the features are used as independent variables; based on the divided training set, the independent variables are scaled by using RobustScaler, three learners are trained and integrated to obtain an R-X-L integrated model; and the R-X-L integrated model is used to rapidly predict the creep stress index of the test set samples and four independent experimental samples. The prediction model for the creep stress index of the tin-based solder alloy is simple, fast, low-cost, pollution-free and the like based on reliable literature data and a modeling method.

This invention relates to the field of biomedical image processing technology, and particularly to a cross-modal brain region image registration method based on differential homeomorphism. The method includes: registering the original T1-w image with an NMT-averaged standard template; registering the acquired cell architecture imaging and fluorescence imaging with the registered T1-w image; downsampling the fluorescence imaging and cell architecture imaging respectively; performing intensity correction; smoothing the cell architecture imaging / fluorescence imaging; re-downsampling the smoothed cell architecture imaging / fluorescence imaging; registering the T1-w image to the intensity-corrected cell architecture imaging / fluorescence imaging through affine transformation to obtain a deformation field; registering the T1-w D99 brain atlas to the cell architecture imaging / fluorescence imaging using the deformation field; and sampling the D99 brain atlas from the cell architecture imaging / fluorescence imaging to complete the registration. The advantages are: stronger robustness, higher accuracy, and no reliance on subsequent manual correction.

The invention relates to a method for controlling an ophthalmic surgical laser (18) to separate a volume (12), the method comprising: - determining a target position of a pupil relative to a laser beam (24) and determining an optical zone (44) having a treatment center (52) at an interface (14, 16) relative to an optical axis (30) of the laser beam (24); - determining a transition zone (48) at the volume (12) as an extension of the interface (14, 16); - obtaining a current actual position of the pupil; - determining a deviation between the target position and the actual position; and - decentering the determined optical zone (44) relative to the optical axis (30) according to the determined deviation, so that an edge (46) of the volume (12) is produced concentrically relative to the optical axis (30) and the optical zone (44) is produced concentrically with the determined treatment center (52) and within the transition zone (48). The invention also relates to a treatment device (10), a computer program and a computer-readable medium.

The application relates to a photovoltaic charging device in the technical field of charging control. The photovoltaic charging device comprises a photovoltaic assembly, a maximum power point tracking control unit, a voltage stabilizing circuit and a charging interface. The photovoltaic assembly is used for converting solar energy into electric energy. An output end of the photovoltaic assembly is electrically connected with an input end of the maximum power point tracking control unit. An output end of the maximum power point tracking control unit is electrically connected with an input end of the voltage stabilizing circuit. An output end of the voltage stabilizing circuit is electrically connected with the charging interface. The charging interface is used for electrically connecting a device to be charged. In this way, the photovoltaic charging device converts solar energy into electric energy and directly supplies power to the device to be charged, without a storage battery, thereby avoiding the related disadvantages of charging the storage battery, completely eliminating the safety risks such as liquid leakage and explosion, and having the remarkable advantages of sustainable power supply, simple maintenance, controllable long-term cost, excellent safety performance and the like, and being capable of meeting the outdoor flexible and convenient welding requirements.

The application relates to an alliance chain and MQTT-based Internet of Things cross-domain authentication system and method, and belongs to the Internet of Things cross-domain authentication field. The application first proposes an alliance chain and MQTT-based Internet of Things cross-domain authentication method, chains and traces related devices, gateways and authentication processes of the Internet of Things, efficiently completes access management and cross-domain authentication of the Internet of Things devices through MQTT, shields the bottom heterogeneity problem, simultaneously simplifies the authentication process between trust domains by using the alliance chain node consensus, and builds a trusted cross-domain information interaction environment for the Internet of Things. Compared with the prior art, the application mainly solves the problems of different authentication modes, different certificate forms and low efficiency of different systems, provides an efficient, simple and trusted cross-domain authentication process, and simultaneously provides an Internet of Things device and gateway related data collection and storage mechanism by the alliance chain+MQTT+Internet of Things cross-domain authentication system.

The present application proposes a positioning device for the feed dog of a sewing machine, which specifically relates to the technical field of sewing machine manufacturing, and includes a positioning device, wherein the power source of the positioning device acts on the tooth rack of the sewing machine, so that the tooth tip of the tooth rack is positioned and lower than the plane of the needle plate of the sewing machine; the limiting baffle of the positioning device acts on the fork crank limiting groove of the fork crank, the fork crank movable connecting sleeve is arranged on the tooth lifting shaft, and the tooth lifting slider groove of the fork crank is movably connected to the tooth lifting slider of the tooth rack, so that the tooth tip of the tooth rack is positioned and lower than the plane of the needle plate of the sewing machine, and the tooth tip of the tooth rack is implemented by the above-mentioned specific positioning device to stay below the plane of the needle plate. The positioning device of the present application is set on the sewing machine for use, which fully improves the intelligent control level of the sewing machine, reduces the labor intensity of the operator, and at the same time, the sewing quality is further improved.

A system for locating a region of interest of a human eye comprises a camera device and a processing device, wherein the camera device is fixed on a display device and faces the front of a display screen of the display device, and the processing device is communicatively connected to the camera device. The processing device is used to execute a positioning step, and the positioning step is based on image recognition of the center point of an eyeball. Compared with the method of traditional telemetry equipment relying on eyeball recognition, the system can better characterize the direction of sight, and determines the region of interest on the screen by detecting the positional relationship of the center point of the eyeball relative to the center point of the eye socket, the distance between the human body and the screen, and the preset visual range, thereby improving the positioning accuracy and providing a good user experience. At the same time, the shortcomings of traditional glasses-type and helmet-type equipment are overcome.

The invention relates to a method and system for identifying a fire combustion form of oil-filled equipment of a transformer substation, and the method comprises the steps: carrying out the binarization processing of an original image, and segmenting a combustion region; calculating the area, height, width, centroid, number of connected regions and other parameters of the segmented region image; and inputting the parameters into a pre-established and trained improved particle swarm algorithm-support vector machine model, and finally obtaining a classification identification result of the fire combustion form of the oil-filled equipment of the transformer substation. According to the improved particle swarm algorithm-support vector machine model, an evolution rule of a genetic algorithm is added in a traditional particle swarm algorithm, the ability of the particle swarm algorithm in the aspect of optimization is optimized, the probability of falling into a local optimal solution is low, iterative search optimization is conducted on support vector machine kernel parameters, and the optimal kernel parameters are obtained. The method can identify the combustion form in time at the early stage of fire combustion of the oil-filled equipment of the transformer substation, and assists fire-fighting departments and intelligent fire-fighting equipment to carry out targeted fire extinguishing operation.

The utility model relates to a power cable accessory, in particular to a novel separable connector. The utility model discloses a novel separable connector, which comprises a connector jacket and an insulating layer sleeved in the connector jacket, a diversion layer is arranged below the tail end of the insulating layer, and the diversion layer is arranged in an annular gap below the insulating layer. The arrangement of the diversion layer solves the problems of suffocation and glue overflow at the tail end of the insulating layer in the production process of the separable connector, avoids the defects of a traditional diversion structure, and provides guarantee for long-time safe and reliable operation of the separable connector.

The present invention belongs to the technical field of water treatment and resource utilization, and in particular relates to a self-flocculating water purifying algae and its application. Nannochloropsis sp. YTLJ‑NAPE‑SF1; The present invention adopts a special self-flocculating water purification algae species, which can realize self-flocculation and precipitation in the water purification process. While purifying nitrogen and phosphorus pollutants in the water, it has a combined removal effect on toxic pollutants such as microplastics and heavy metals.

The invention discloses a recycling and processing technology for spinning regenerated fibers from waste polyester textiles, and belongs to the technical field of waste polyester regeneration. According to the recycling and processing technology, the waste polyester textiles are subjected to semi-melt extrusion densification pretreatment by adopting a semi-degradation tackifying technology, and EG which enables the waste polyester textiles to be incompletely degraded is added; the regenerated polyester fiber prepared by the method has the advantages that the high-added-value regenerated fiber is obtained by adding the reinforcing agent and the compound nucleating agent into the degraded pure monomer and carrying out polycondensation, so that the molecular weight of the regenerated fiber is effectively improved, the intrinsic viscosity of the regenerated fiber is higher, the thermal property and the flame retardant property are optimal, and the regenerated polyester fiber prepared by the method has excellent wrinkle resistance, wear resistance, high temperature resistance and stability.

The problems of low security and protection monitoring intelligent level, limited data communication and the like under the scenes of defense, protection, production, safety, rescue and the like in the near-ground space are solved. The invention provides a space-air-ground integrated intelligent security system and method. The system is composed of an intelligent sentry cluster, a wide-area converged communication network and an intelligent security information platform. Each intelligent sentry in the intelligent sentry cluster is an integrated thunder-vision fusion monitoring smart station, and comprises a fusion monitoring unit, an edge computing unit, a satellite communication unit, a power distribution and energy storage unit and a bearing platform. The edge computing unit provides computing support for intelligence of the front-end sentry, and the rear-end intelligent security information platform realizes intelligent recognition learning, training, verification and comprehensive analysis on the basis of the front end. Three-dimensional situation awareness, real-time high-speed communication, intelligent analysis and early warning and efficient intelligent decision making are comprehensively realized. Compared with the traditional security and protection means, the scheme of the invention has higher technical content, greater benefit and wider applicability in different application scenes.

The invention discloses a building indoor intelligent identification management system based on geographic information, and belongs to the technical field of indoor intelligent identification management, and the system comprises the steps: comprehensively collecting the indoor multi-dimensional information data of a building through integrating laser scanning, Wi-Fi and Bluetooth signal intensity measurement and a built-in sensor of user equipment; using the multi-source data fusion positioning model to calculate user real-time position coordinates, and uploading the user real-time position coordinates to a user terminal; traversing the multi-dimensional information data to obtain the real-time position, advancing direction and speed of the user, and calculating a predicted position coordinate; calculating the distance between the position information of each identifier and the predicted position coordinate, comparing the distance with a preset radius, and judging to obtain a first identifier, and dynamically adjusting the display priority of the first identifier; optimizing and adjusting the size and brightness of the first identifier according to the priority of the first identifier and the indoor environment light intensity; the first identifier is received and displayed through the user terminal, and dynamic updating of the real-time position of the user is achieved.

The invention belongs to the technical field of electric power engineering. According to the assembly type truss-precast pile foundation for the power transmission line, adjacent precast piles are connected through horizontal tie bars, tower foot plates are located on the upper portions of the precast piles and connected with inclined rods, and the inclined rods are connected with the precast piles; the horizontal tie bars and the inclined bars form a truss structure, and the center of the top surface of the truss structure and the center of the bottom surface of the truss structure are eccentrically arranged; the lower portion is a hollow precast concrete square pile or a pipe pile, the upper portion is a hollow precast concrete member truss, the top of the truss is directly connected with a tower foot plate, concrete members are connected with the piles and the tower foot plate through pin shafts, field assembly is facilitated, adjustable bolts are arranged on connecting pieces, and installation precision is guaranteed. The defects of a common cast-in-place pile are overcome, the upper discrete hollow concrete truss replaces a bearing platform, and the problems of large self weight and on-site maintenance of the bearing platform are solved.

The present application relates to container flange joint technical field, especially to a kind of assembled welding-free flange and its installation method, including flow guide pipe, the both ends of the flow guide pipe are equipped with connecting portion and clamping assembly respectively;Connecting portion, it is used to connect external pipeline for being equipped with in container outside;Clamping assembly, including limiting piece and clamping piece;In use state, the limiting piece and clamping piece are equipped with in the both sides of container wall, for the flow guide pipe is fixed in the container wall, to realize the flow guide pipe and container inner cavity conduction;The flange of the present application is detachable and assembled as a whole, and the flange body and the barrel container can be assembled and disassembled, the present application can realize the flange installation and disassembly of container flow guide port outside large barrel container, avoid the drawbacks brought by traditional welding mode.

A neural network graph partitioning system and method are disclosed. The graph partitioning system is used to partition a neural network graph into a series of subgraphs and allows multiple subgraphs to be executed in available hardware subsystems. The system estimates the computation time and memory bandwidth of the partitioned subgraphs based on a cost function. The graph partitioning system is a hardware cycle estimation model that can be run quickly and implements parameterization of memory latency. The graph partitioning system supports heterogeneous partitioning for different types of accelerators, such as central processing units, graphics processing units, application specific integrated circuits, etc. A method of partitioning a neural network graph into a series of subgraphs is also disclosed.

The utility model discloses an elastic handle for a valve, which belongs to the technical field of valves and comprises a main handle, an auxiliary handle and an elastic component, the auxiliary handle is arranged below the main handle, the elastic component is mounted between the main handle and the auxiliary handle, and the elastic handle is characterized by further comprising an oval groove and a pin head. Supporting parts are formed on the two sides of the main handle, the oval grooves which are arranged in a bilateral symmetry mode are formed in the supporting parts of the main handle, the two pin heads which are arranged in a bilateral symmetry mode are arranged on the two sides of the auxiliary handle respectively and assembled in the oval grooves, and the main handle and the auxiliary handle form a shear-shaped structure. The elastic member applies an elastic force to the scissor-shaped configuration to open the rear portion of the scissor-shaped configuration. According to the main and auxiliary handle mounting structure, through the pin joint design, the assembling procedure is simplified, the efficiency is improved, the anti-falling effect is good, the structure is stable, and therefore the reliability of valve operation and the user experience are comprehensively optimized.

The utility model relates to the technical field of direct expansion machine systems, and discloses a device capable of effectively improving return air temperature, which comprises a plate heat exchanger, a connecting pipe A and a connecting pipe B are arranged on the primary side of the plate heat exchanger, and a connecting pipe C and a connecting pipe D are arranged on the secondary side of the plate heat exchanger. A gas-liquid separator, a compressor and an oil separator are arranged between the connecting pipes, a return gas temperature control mechanism is arranged in each connecting pipe, heat exchange can be conducted on high-temperature gaseous Freon on the exhaust side and low-temperature gaseous Freon on the return gas side through the plate heat exchanger, the return gas temperature is increased, the temperature of exhaust entering the condenser is reduced, and the heat exchange efficiency is improved. The heat exchange effect of the system is improved, gas-state Freon subjected to heat exchange of the plate heat exchanger is subjected to gas-liquid separation in the gas separator and then enters the compressor, the liquid impact phenomenon of the compressor does not need to be worried about, compared with an existing direct expansion machine system, the return gas temperature can be effectively increased, a series of defects caused by the too low return gas temperature are avoided, and the energy consumption is reduced. Meanwhile, the refrigerating effect of the system is not affected.

This invention discloses a rolling method for Ti80 titanium alloy thin plates. The rolling method includes the following steps: 1. Rolling in a first heat to obtain a first rolled slab; 2. Cutting to obtain a first intermediate slab; 3. Rolling in a second heat to obtain a second rolled slab; 4. Cutting to obtain a second intermediate slab; 5. Rolling in a third heat to obtain a third rolled slab; 6. Cutting to obtain a third intermediate slab; 7. Covering with a steel clasp to obtain a covered lap-rolled ladle; 8. Rolling in a fourth heat, then unpacking, and finally performing shaping annealing to obtain the Ti80 titanium alloy thin plate. This rolling method, by controlling the rolling temperature at different heats and employing reversing cross-rolling between heats, combined with online reheating in the furnace, reduces the significant cracking of titanium alloys caused by temperature drops in traditional processes. It produces Ti80 titanium alloy thin plates with uniform and fine equiaxed α grains in the microstructure and meeting mechanical property requirements, suitable for shipbuilding, machinery, chemical, and petroleum industries.

The application provides a packer, which comprises a packer body, an expansion cone sleeved on the packer body and internally connected with the packer body through a first sealing element, an expansion sleeve connected on a tapered part of the expansion cone, the expansion sleeve being provided with a second sealing structure for sealingly connecting an outer sleeve in operation, a support sleeve having one end connected with and supporting one end of the expansion sleeve and the other end connected with the packer body in a direction away from the expansion cone, and a locking ring fixedly connected with the support sleeve and locking the support sleeve on the packer body. The packer is resistant to high temperature and high pressure, has good adaptability to the sleeve, and has good anti-suction and energy storage and tightening effects.