Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

1232 results about "Liquid metal" patented technology

Liquid metal consists of alloys with very low melting points which form a eutectic that is liquid at room temperature. The standard metal used to be mercury, but gallium-based alloys, which are lower both in their vapor pressure at room temperature and toxicity, are being used as a replacement in various applications.

Anti-electromagnetic interference double-shielding signal cable for precise instrument

The invention relates to the technical field of special cables, in particular to an anti-electromagnetic interference double-shielding signal cable for precise instruments, which comprises conductor units, insulating layers, wire pair shielding layers, a filling buffer layer, a self-adaptive conductive layer, an inner main shielding layer, a bonding layer, an outer main shielding layer and a sheath layer, through combination of the graphene composite conductor and the low-dielectric insulating layer, 10GHz signal attenuation is smaller than or equal to 0.5 dB / m, signal transmission errors are greatly reduced, through cooperation of the 3D braided shielding layer and the filling buffer structure, the bending fatigue life of the signal cable is larger than or equal to 200,000 times, through self-repairing design of the liquid metal microcapsules, the shielding effectiveness of a damaged part is recovered, and the service life of the signal cable is prolonged. Protrusions are arranged on the inner layer, form mechanical occlusion with a microscopic rough surface of a copper foil composite layer on the inner main shielding layer, and are matched with a plurality of pits in the surface of the outer layer to form point-surface composite contact with a 3D woven silver-plated copper wire layer of the outer main shielding layer, so that the peel strength of the inner main shielding layer and the outer main shielding layer is greatly improved.
Owner:ANHUI CABLE

Stretchable circuit board and preparation method thereof

In order to solve the problems that an existing stretchable circuit board is large in impedance and short in service life, the stretchable circuit board comprises an elastic substrate and an elastic packaging layer, the elastic packaging layer covers the surface of one side of the elastic substrate, and the elastic packaging layer covers the surface of the other side of the elastic substrate. A fiber reinforcement area is formed on one side, facing the elastic packaging layer, of the elastic substrate, a glass fiber layer penetrating through the elastic substrate is arranged in the fiber reinforcement area, a line groove is formed in the fiber reinforcement area, the glass fiber layer partially penetrates through the line groove, the line groove is filled with a liquid metal coating, and the liquid metal coating is arranged on the elastic substrate. And a circuit pattern is formed by the liquid metal coating in the circuit groove.
Owner:SHENZHEN KABOER TECH CO LTD

High-heat-conductivity leakproof liquid metal phase change heat-conducting gasket and preparation method thereof

PendingCN121427289AUV curingPhysical chemistry
The invention discloses a high-heat-conductivity leakproof liquid metal phase change heat-conducting gasket and a preparation method thereof, and relates to the technical field of heat-conducting gaskets. The preparation method comprises the following steps: alloying high-heat-conductivity low-melting-point liquid metal gallium with high-heat-conductivity metal silver and copper, mixing with a polymer containing a specific functional group, adding a modified heat-conducting filler, and carrying out UV curing to form the heat-conducting gasket. Liquid metal is easily alloyed to form eutectic alloy, the melting point can be increased, a chemical cross-linked network formed by the modified heat conduction filler and UV curing can make up heat conduction loss, a heat conduction path is established, the interface thermal resistance is reduced, and the heat conduction efficiency is remarkably improved. The surface oxide layer interacts with the polar group of the polymer, and the steric hindrance effect of the cross-linked network is combined to synergistically realize the leak-proof effect. The high-heat-conductivity leakproof liquid metal phase change heat-conducting gasket prepared by the invention has the effects of high heat conductivity and leakproof.
Owner:KUSN ZHONGDI MATERIALS TECH

High-temperature liquid metal electromagnetic pump

The embodiment of the invention relates to the technical field of induction pumps, in particular to a high-temperature liquid metal electromagnetic pump which comprises a main body, an inductor, a temperature sensor and an excitation controller. The main body is hermetically connected with a conveying piece for conveying high-temperature liquid metal; the inductor is arranged to enable the high-temperature liquid metal in the main body to generate induction current and enable the high-temperature liquid metal to generate pressure difference at different positions of the main body, so that the high-temperature liquid metal can flow at different positions; the temperature sensor monitors the temperature in the main body; the excitation controller is set to be capable of adjusting the power supply voltage and frequency of the inductor; the main body is arranged to be capable of preventing heat transfer of the high-temperature liquid metal to the inductor. The electromagnetic pump can meet the sealing requirement of high-temperature liquid metal conveying; flow control is facilitated, and the requirement for controllable conveying of high-temperature liquid metal in the molten salt electrolysis dry-method technological process is met; the failure of the high-temperature liquid metal electromagnetic pump can be avoided, and the operation stability and reliability of the electromagnetic pump can be improved.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Liquid metal-based tilt angle sensor with wettability regulated and controlled by graphite, preparation method and application

The invention relates to a liquid metal tilt angle sensor with wettability regulated and controlled by graphite, which comprises a flexible polymer matrix, a liquid metal layer and a graphite layer, the graphite coating covers part of the surface of the inner wall of the micro-channel and is used for regulating and controlling the wettability of the inner wall; and the liquid metal is filled in the micro-channel and forms an axially continuous gradient section fluid. According to the method, the wettability of the inner wall to the liquid metal is regulated and controlled by coating the inner wall of the smooth flexible polymer micro-channel with graphite (and regulating the proportion of the coating area) by utilizing the characteristic that a graphite material is not wetted to the liquid metal. And by utilizing the surface oxidation film characteristic and high fluidity of the liquid metal, a liquid metal gradient section with instability can be formed in the pipeline. When the pipeline is inclined, the state (such as contact area or form) of the liquid metal surface can be changed under the action of gravity, so that the resistance of the liquid metal surface is influenced, and accurate angle detection can be realized.
Owner:ZHONGKE GUANGDIAN (BEIJING) SCI & TECH CO LTD +1

Multi-mode-based AI large model multivariate data fusion method and system

The invention relates to the technical field of data processing, in particular to an AI large model multivariate data fusion method and system based on multiple modalities, and the method comprises the steps: collecting multi-source data; performing classification abnormity judgment; abnormal type identification; calculating severity; switching fusion modes; and outputting an alarm. According to the method, parameters such as the spindle temperature, the rotating speed fluctuation rate, the vibration acceleration, the current load, the acoustic emission energy spectrum peak value, the cutting force variance and the cooling liquid metal particle concentration are acquired and fused step by step in multiple dimensions in the machining process of the numerical control machine tool, so that the running state of the machine tool is dynamically sensed from multiple angles; furthermore, the physical essence of tool wear and material peeling is revealed through the coupling relationship between the cutting force variance and the metal particle concentration, and meanwhile, the dynamic stability change of the machine tool structure is captured by combining the spindle rotating speed fluctuation ratio; the problem that state monitoring is not accurate in the numerical control machining process due to data isolation and fusion strategy staticization is effectively solved.
Owner:BEIJING XINRUIXIANGTONG TECH CO LTD

Process method for synergistically recovering indium and germanium from zinc leaching residues and preparing single crystal

The invention relates to the field of semiconductor single crystal material preparation processes, and discloses a process method for synergistically recovering indium and germanium from zinc leaching residues and preparing single crystals, which comprises the following steps: mixing a crude extract and a liquid metal solvent, carrying out low-temperature extraction to obtain mixed slurry, carrying out thermal-phase in-situ purification on the mixed slurry, separating a liquid-solid phase by utilizing thermal gradient migration, and carrying out solid-liquid separation on the separated liquid-solid phase. Performing directional solidification and purification to obtain an ultra-clean growth solution; analyzing the indium-germanium proportion of the ultra-clean growth solution, and supplementing pure metal for chemical component calibration; the ultra-clean growth solution with accurate components is used for liquid phase epitaxial growth to obtain single crystals, the thermodynamic principle is used for replacing physical filtration, so that particle heterogeneous nucleation centers are removed, the influence of chemical fluctuation of raw materials is eliminated through a built-in calibration link, and the physically pure growth solution with accurate components is prepared; the industrial preparation of the high-quality single crystal is ensured.
Owner:LUXI LANTIAN HIGH TECH CO LTD

Metal raw material suspension conveyor for chemical production

The application relates to the technical field of chemical metal raw material conveying, in particular to a metal raw material suspension conveying device based on chemical production, which comprises a conveying track and a sliding seat connected through a traction chain on the track, and the sliding seat is connected with an outer damping sliding pipe through a suspension chain. The metal raw material suspension conveying device based on chemical production can be accurately matched with the conveying requirements of different forms of metal raw materials such as powder, liquid and block: for powder or liquid metal, an adjustable hydraulic damper is used, a cylinder, a sliding inner plug, a containing cylinder and a compression spring are matched, and liquid sloshing leakage and powder partial load agglomeration are inhibited; for blocky metal, the hydraulic damper is used to release the "rigid impact" slowly, and the residual vibration after impact is quickly dissipated through a friction block, so that the fatigue damage of the tank body is avoided, a plurality of sets of equipment are not needed, enterprise cost is reduced, and workshop space is saved.
Owner:SHANDONG JINKE ENG DESIGN CO LTD

Liquid metal tilt angle sensor based on asymmetric double-helix micro-channel and preparation method of liquid metal tilt angle sensor

The invention relates to a liquid metal tilt angle sensor based on an asymmetric double-helix micro-channel. The liquid metal tilt angle sensor comprises a flexible polymer matrix; the asymmetric double-helix extending micro-channel is arranged in the flexible polymer matrix, and the liquid metal medium is filled in the micro-channel; the asymmetric double-helix extending micro-channel is obtained on the basis of an asymmetric twisting process of two metal wires. Wherein the asymmetrical twisting causes the two metal wires to undergo non-uniform extrusion in mechanical distance, thereby forming surfaces with different curvature radii. And then, a metal wire structure is copied by using a flexible polymer so as to obtain an irregular micro-channel structure, the micro-channels show irregularity of curvature radius and diameter gradient distribution, and after liquid metal is directly injected into the micro-channels, the high-precision and high-sensitivity monitoring function on the inclination angle is achieved.
Owner:ZHONGKE GUANGDIAN (BEIJING) SCI & TECH CO LTD +1

Method for analyzing hydraulic performance data of high-temperature liquid metal circulating pump

The invention belongs to the technical field of hydraulic performance data analysis, and discloses a hydraulic performance data analysis method for a high-temperature liquid metal circulating pump. The method comprises the steps that time domain features and frequency domain features are extracted based on a standardized data set, a feature data set is obtained and stored in a database, health state detection is conducted based on the real-time and historical feature data set, and a real-time health state report is obtained. The method comprises the steps of predicting a hydraulic performance trend and equipment degradation based on a real-time and historical feature data set to obtain a performance trend prediction report, analyzing based on a real-time health state report and the performance trend prediction report to obtain an adaptive control instruction set, and managing, checking and outputting the adaptive control instruction set. In general, the method has the remarkable advantages that the reliability of the basic data is high, the deep analysis capability of the data is high, and the intelligent effect of the system is good.
Owner:YANTAI LONGGANG PUMP IND CO LTD

Liquid metal based first level interconnects

In one embodiment, an integrated circuit assembly includes a substrate comprising electrical connectors on a top side of the substrate and an integrated circuit die coupled to the top side of the substrate. The integrated circuit die includes metal pillars extending from a bottom side of the die facing the top side of the substrate, and the metal pillars of the integrated circuit die are electrically connected to the electrical connectors of the substrate via a liquid metal (e.g., a Gallium-based alloy).
Owner:INTEL CORP

Substrate support assembly and plasma processing device

A substrate support assembly includes a base, a substrate support on the base, and a supply unit. The base includes a first channel and a second channel. The first channel is a channel for a first heat transfer medium. The second channel is a channel for a second heat transfer medium. The supply unit is connected to the second channel. The second channel extends between the first channel and the substrate support. The supply unit is connected to the second channel to supply the second heat transfer medium to the second channel. The second heat transfer medium is a liquid metal.
Owner:TOKYO ELECTRON LTD

Polydopamine modified liquid metal microsphere / boron nitride nanosheet heat-conducting composite film as well as preparation method and application thereof

PendingCN121108540AComposite filmMicrosphere
The invention discloses a polydopamine modified liquid metal microsphere / boron nitride nanosheet heat-conducting composite film as well as a preparation method and application thereof. The polydopamine modified liquid metal microsphere / boron nitride nanosheet heat-conducting composite film comprises polydopamine modified liquid metal microspheres, boron nitride nanosheets and a polymer base material, wherein the polydopamine modified liquid metal microspheres are filled and distributed in lamellar gaps of the adjacent boron nitride nanosheets. When the composite film is prepared, gallium-based liquid metal microspheres coated with polydopamine are adopted, a heat-conducting bridging medium with the characteristics of insulation, high heat conductivity and extremely easy deformation is obtained, effective filling of lapped ultra-micro gaps among rigid boron nitride nanosheets can be achieved, the transverse heat conductivity of the composite material is improved, and the composite film has good mechanical characteristics and is suitable for large-scale production. The problem that the existing soaking film is poor in heat dissipation efficiency under the severe application working conditions of insulation and high heat conduction in the current development situation can be effectively solved, and the heat management requirements of the industries such as semiconductors are met.
Owner:QIANWAN INST OF CNITECH +2

Thermal pad and electronic device

A thermal pad and an electronic device are disclosed for effectively dissipate heat of an electronic component. The thermal pad includes a first cover, a second cover, an elastic shell, and liquid metal. The elastic shell is bent and closed into a tubular structure. The first cover and the second cover are respectively mounted at two ends of the tubular structure to form a closed cavity. The closed cavity is configured to accommodate the liquid metal. Filling the liquid metal into the elastic shell implements good heat conduction effect by using high thermal conductivity of the liquid metal, and implements compression on the thermal pad during assembly of the thermal pad by using compressibility of the elastic shell, to reduce a thickness of the thermal pad.
Owner:YINWANG INTELLIGENT TECHNOLOGIES CO LTD

Liquid metal-based packaging structure, packaging method and package

ActiveCN116053218BLiquid metal
The application relates to a liquid metal-based packaging structure, a packaging method and a packaging body, the packaging structure comprising a first elastic layer and a second elastic layer; a containing cavity is formed between the first elastic layer and the second elastic layer, and a liquid metal fills the containing cavity to form an intermediate liquid metal layer; the filling amount Q of the liquid metal satisfies Q=N*S, wherein Q is the filling amount of the liquid metal, the unit is g; S is a packaging area, the unit is cm 2 ; and the value of N is 5*10 ‑6 -2 g / cm 2 . By filling an appropriate amount of liquid metal in the containing cavity formed by the two elastic layers, a packaging structure with excellent barrier performance and flexibility can be formed. Based on the packaging structure design, the application further provides a packaging method, which can package various structures and sizes of objects to be packaged, thereby providing a long-term stable packaging body and widening the application space of the packaging material.
Owner:SHANGHAI JIAOTONG UNIV

Commercial spaceflight flexible unfolding mechanism thermally controlled by deformable liquid metal

The invention relates to the technical field of thermal control of commercial spaceflight unfolding mechanisms, in particular to a deformable liquid metal thermal control commercial spaceflight flexible unfolding mechanism which comprises a flexible unfolding mechanism body and a flexible fluid circulation pipeline integrated inside or on the surface of the flexible unfolding mechanism body and synchronously folded and unfolded along with the flexible unfolding mechanism body. The fluid driving and heat exchange unit is arranged in the non-flexible area of the spacecraft platform or the body and is connected with the flexible fluid circulation pipeline to form a closed circulation loop; wherein the flexible fluid circulation pipeline is filled with a liquid metal working medium. The liquid metal working medium has high thermal conductivity and flow characteristics, and is matched with the vein-shaped / grid-shaped microtube array, so that the temperature of each region of the flexible unfolding mechanism can be quickly balanced, and structural stress deformation caused by temperature gradient is effectively eliminated; and the adaptive capacity of the mechanism in extreme space environments such as high and low temperature alternation and intense radiation is greatly improved.
Owner:BEIJING HOT NUMBER TECH CO LTD

Low-thermal-resistance high-thermal-conductivity liquid metal heat-conducting sheet and preparation method thereof

The invention discloses a low-thermal-resistance high-thermal-conductivity liquid metal heat-conducting sheet and a preparation method thereof, and relates to the technical field of heat-conducting materials. The nano silver wire network layers are formed on the front surface and the back surface of the liquid metal base material layer; the low-hardness heat-conducting curing layer is filled in pores of the silver nanowire network layer; and the silver nanowire network layer and the low-hardness heat-conducting curing layer jointly form the composite heat-conducting nano coating. The preparation method comprises the following steps: rolling liquid metal into sheets; coating the front side and the back side of the liquid metal sheet with the silver nanowire dispersion liquid respectively; after the coating is dried, performing vacuum hot pressing; and coating the silver nanowire network structure with a low-hardness heat-conducting coating, and carrying out vacuum curing to form a film. According to the invention, the defects in the prior art are overcome, the high heat conductivity coefficient of the composite coating can be ensured, the micro-nano interface between the interfaces can be filled by virtue of the low-hardness coating, and the interface thermal resistance is greatly reduced.
Owner:SHANGHAI MKS MATERIAL TECH CO LTD

Liquid metal-based catalyst with flowable amorphous cobalt active sites as well as preparation method and application of liquid metal-based catalyst

The invention discloses a liquid metal-based catalyst with flowable amorphous cobalt active sites as well as a preparation method and application of the liquid metal-based catalyst. The spherical gallium-based liquid metal loaded amorphous cobalt nanosheet material is synthesized by using a sodium borohydride ice bath method. Due to the optimization of the synthesis process, the amorphous cobalt nanosheets are uniformly distributed on the surfaces of the liquid gallium balls, are small in size, are high in utilization rate and are not easy to agglomerate; the intrinsic flow characteristic of the liquid metal gallium realizes the efficient reverse hydrogen overflow effect, optimizes the formation process of a catalytic reaction intermediate, and accelerates the formation of the intermediate. The composite material has the advantages of low overpotential, high Faraday efficiency, high ammonia production rate, good stability and the like during nitrate electrocatalytic reduction reaction, meets the requirements of production and use, and is low in preparation cost.
Owner:TIANJIN UNIV

Method and device for realizing left-right controllable spontaneous rotation of liquid drop based on light induction

The invention relates to the technical field of solid-liquid interfaces and liquid drop movement and control, in particular to a method and device for achieving left-right controllable spontaneous rotation of liquid drops based on light induction, and the method comprises the following steps that acid liquid drops containing photoacid are dropwise added to the surface of liquid metal; a light source system is adopted to irradiate liquid drops on one side of the liquid drops, the liquid drops are induced to locally release non-uniform H < + > ions, and interface chemistry is initiated to generate gradient change distribution; the light intensity generated by the light source system promotes the formation of asymmetric tension distribution on the liquid drop and liquid metal interface, and drives the liquid drop to rotate along a preset direction; and by changing the irradiation position, the liquid drops can be switched between left rotation and right rotation. According to the present invention, by using the mechanism of combining the interface Marangoni effect and the light-induced acidity regulation and control, the stable and rapid spinning behavior of the liquid drop can be represented by adjusting the position, the irradiation time and the irradiation intensity of the illumination region, and the rotation direction can be reversibly switched between the left rotation and the right rotation.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Gallium-based alloy composite working medium and preparation method thereof

The invention relates to the technical field of heat exchange, and particularly discloses a gallium-based alloy composite working medium and a preparation method thereof.The gallium-based alloy composite working medium comprises a main heat transfer fluid and nano particles dispersed in the main heat transfer fluid, and the main heat transfer fluid is liquid gallium-based alloy; the nano particle comprises a metal core, a non-metal shell layer coated outside the metal core and a carbon nano material layer coated outside the non-metal shell layer. The carbon nanomaterial is modified on the surface of the non-metal shell layer, the dispersion condition of nanoparticles in liquid metal is effectively improved, and meanwhile, the carbon nanomaterial can effectively mask silicon hydroxyl on the surface of the non-metal shell layer and prevent self-polymerization tendency between the non-metal shell layers by modifying the surface of the non-metal shell layer.
Owner:江淮前沿技术协同创新中心

Metallized diamond particle, diamond / gallium-based liquid metal composite material and preparation method thereof

The invention discloses a metalized diamond particle, a diamond / gallium-based liquid metal composite material and a preparation method thereof, and belongs to the field of composite thermal interface materials. The metallized diamond particle comprises a diamond particle, the surface of the diamond particle is coated with an immiscible alloy layer, the immiscible alloy layer contains a diffusion barrier component and a reaction wetting component, and the content of the diffusion barrier component in the immiscible alloy layer is not higher than 15 at% of the total content of the diffusion barrier component and the reaction wetting component; wherein the diffusion barrier component is one or more of tungsten, molybdenum and tantalum, and the reaction wetting component is one or more of silver and copper. The metallized diamond particles and the gallium-based liquid metal are combined to form the composite material, so that the diamond / gallium-based liquid metal composite material has more excellent thermal conductivity.
Owner:HUNAN UNIV

Pressure sensing composite material

A pressure sensing conductive elastomeric composite material, the material comprising a polymer matrix, itself comprising an elastomeric material, and a conduction network within the polymer matrix. The conduction network comprises: a plurality of particle chains, with each particle chain comprising a plurality of metallic ferromagnetic particles, a plurality of liquid metal droplets, and a plurality of non-ferromagnetic conductive platelets, wherein the conductivity of the composite material varies as a function of the pressure applied to the material.
Owner:CAMBRIDGE ENTERPRISE LTD

Method for preparing two-dimensional material with wrinkle structure with assistance of liquid metal and application

The invention discloses a method for preparing a two-dimensional material with a wrinkle structure under the assistance of liquid metal and application, and belongs to the field of micro-nano machining of two-dimensional materials. The method comprises the following steps: S1, covering the upper surface of a two-dimensional material with liquid metal gallium, and solidifying the liquid metal gallium under a cooling condition to obtain a metal gallium ingot loaded with a two-dimensional material nanosheet; s2, heating the metal gallium ingot loaded with the molybdenum disulfide nanosheet until gallium is molten, cooling and solidifying, and obtaining a two-dimensional material with a wrinkle structure after solidification; the method disclosed by the invention can be used for efficiently preparing the large-area and high-density wrinkle type two-dimensional material, is suitable for manufacturing devices such as high-performance sensors and has a wide application prospect.
Owner:TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL

High-thermal-conductivity composite metal material as well as preparation method and application thereof

The invention belongs to the technical field of aluminum-silicon-based metal materials, and particularly relates to a high-thermal-conductivity composite metal material and a preparation method and application thereof, and the high-thermal-conductivity composite metal material is suitable for heat dissipation requirements of 5G communication equipment, electric vehicle power batteries, spacecraft thermal control systems and the like. A nanocrystalline aluminum alloy matrix is formed by aluminum, magnesium, silicon, scandium and other metal elements, and the problems of anisotropy, obvious thermal response lag, obvious poor cycling stability, boiling critical phenomenon and the like do not exist; meanwhile, the nanocrystalline aluminum alloy matrix comprises a high-density dislocation grid, so that the overall heat transfer efficiency is further improved; in addition, a micro-channel is formed in the nanocrystalline aluminum alloy matrix, liquid metal is poured into the micro-channel to serve as a phase change working medium, and therefore the synergistic effect of active heat transportation and passive heat conduction is achieved. The catalyst layer is used for promoting evaporation-condensation circulation of liquid metal and strengthening phase change heat transfer of a liquid metal working medium; the interface bonding and wettability are enhanced, and the attachment of liquid metal and the channel wall is improved; and phase change working medium oxidation and side reaction are inhibited.
Owner:GIMENG NEW MATERIAL TECHNOLOGY (SUZHOU) CO LTD

Large-strain interdigital capacitive sensor based on liquid metal conductive paste

The invention relates to the technical field of flexible electronic sensors, in particular to a large-strain interdigital capacitive sensor based on liquid metal conductive paste, which comprises a flexible substrate, and the flexible substrate comprises a bottom packaging layer and a top packaging layer integrally connected to the upper surface of the bottom packaging layer. A liquid metal interdigital electrode is embedded between the bottom packaging layer and the top packaging layer, the liquid metal interdigital electrode is formed after liquid metal conductive paste is subjected to laser ablation patterning, the end of the liquid metal interdigital electrode is connected with a flexible wire, and one end of the flexible wire extends to the outside of the flexible substrate; the liquid metal conductive slurry is paste conductive slurry which is rich in oxide and is formed by mechanically stirring and oxidizing liquid metal; the liquid metal is gallium-based liquid metal; the problems that an existing flexible strain sensor cannot meet the large strain measurement requirement and is poor in stability and complex in preparation process are solved.
Owner:XIAN UNIV OF SCI & TECH

Combined sealing structure for oil field production and telescopic pipe column system

The invention relates to the field of petroleum and natural gas exploration and development, in particular to a combined sealing structure and a telescopic pipe column system for oil field production, which comprise a combined sealing ring, and the combined sealing ring comprises a V-PAC sealing ring and a pre-cooling expansion sealing ring which are arranged in parallel; the outer circumferential face of the V-PAC sealing ring and the outer circumferential face of the pre-cooling expansion sealing ring are both coated with hydrogel. A cavity is formed in the precooling expansion sealing ring, and the cavity is filled with gallium-based liquid metal; the inner pipe is used for transmitting media, and the outer pipe plays a role in protection and supporting. The inner pipe is sleeved with the outer pipe, sliding fit is formed, stretching is achieved through sliding, and the effect of compensating for the length change of the pipe column is achieved. The inner pipe and the outer pipe are connected into a whole through the connected flanges and the connecting rods, and meanwhile the connecting rods play a sliding guiding and limiting role. The sealing ring combination is arranged between the inner pipe and the outer pipe, so that the sealing performance of the telescopic pipe column system is ensured.
Owner:SHAANXI YANCHANG PETROLEUM GRP

Self-repairing liquid metal heat pipe for commercial spaceflight

The invention relates to the technical field of commercial spaceflight, in particular to a self-repairing liquid metal heat pipe for commercial spaceflight, which comprises a polyether-ether-ketone composite pipe, gallium bismuth zinc liquid gold, a micro-nano repairing film, a main hot runner, a pressure detector, a standby hot runner and an emergency plugging valve, and the main hot runner is an axial through channel in the polyether-ether-ketone composite pipe, and the standby hot runners are annularly and circumferentially arrayed along the inner wall of the main hot runner. Compared with heat conduction in the prior art, medium leakage is stopped through cooperative plugging in a damaged scene, so that the heat conduction efficiency is improved, and the service life of the heat exchanger is prolonged. And meanwhile, the detector is in signal linkage with the plugging valve, a heat transfer loop is rapidly switched in the case of serious damage, the continuous and stable thermal control function is achieved, and therefore the on-orbit operation life of a spacecraft is further prolonged.
Owner:BEIJING HOT NUMBER TECH CO LTD

Evaporation section simulator, visual test section and visual test system

The invention provides an evaporation section simulator, a visual test section and a visual test system. The evaporation section simulator comprises a light-transmitting bearing container, at least one supporting piece and a liquid absorbing core. The light-transmitting bearing container is provided with a containing cavity used for containing a liquid metal working medium. The at least one supporting piece is arranged on the light-transmitting bearing container and located in the containing cavity; the supporting piece is located on the heat conduction wall of the light-transmitting bearing container, and the heat conduction wall faces the heating piece. The liquid absorbing core is separably arranged on the top of at least one supporting piece. The evaporation section simulator provided by the invention is simple in structure. The supporting piece is arranged on the heat conduction wall and close to the heating piece, the heat transfer characteristic of the alkali metal heat pipe under the real working condition is easily simulated, and the generation process and the triggering characteristic of boiling criticality are conveniently observed and researched.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Preparation of GSH (glutathione) responsive photo-thermal chemical synergistic liquid metal nano composite material and application of GSH responsive photo-thermal chemical synergistic liquid metal nano composite material in tumor treatment

The invention discloses preparation of a GSH responsive photo-thermal chemical synergetic liquid metal nanocomposite and application of the GSH responsive photo-thermal chemical synergetic liquid metal nanocomposite in tumor treatment, and relates to the field of nano biomedical materials. According to the composite material, gallium-tin alloy (GaSn) is used as an inner core, a reduced graphene oxide (RGO) middle layer and a manganese dioxide (MnO2) outer shell are sequentially coated, a three-layer core-shell structure is formed, and the average particle size is controlled to be about 60 nm. The liquid metal composite nanomaterial has excellent photothermal conversion performance and oxidation resistance. The compound not only can be used for treating tumors and cancers, quickly killing cancer cells and effectively inhibiting tumor growth, but also can quickly deplete GSH, break dynamic balance of redox and improve ROS level in cells. Experiments show that the material shows a remarkable inhibition effect on tumor cells, has good biocompatibility and regulation and control release characteristics, and provides a new strategy for precise synergistic treatment of solid tumors.
Owner:JILIN UNIVERSITY