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250results about How to "Good deformability" patented technology

Display module and display device

The invention provides a display module and a display device, and the display module comprises a display screen which is provided with a display surface and a back surface which are opposite to each other, and the display screen comprises at least one bending area; the middle frame is arranged on the back surface of the display screen; the first bonding structure is bonded between the back surface of the display screen and the middle frame; wherein the first bonding structure comprises a plurality of bonding parts, and the multiple bonding parts are arranged at intervals in the first direction; wherein the first direction is the length direction of the display screen in the unfolded state. According to the display module, the first bonding structure is bonded between the back face of the display screen and the middle frame, the first bonding structure comprises the multiple bonding parts, and the multiple bonding parts are arranged at intervals in the length direction of the display screen in the unfolded state, so that the deformability of the first bonding structure is improved; according to the display module, the shearing force generated when the film layer of the display screen is dislocated can be effectively released, reverse arching of the bending area of the display screen is avoided, and the display performance of the display module is improved.
Owner:HEFEI VISIONOX TECH CO LTD

Improved YOLOv8 chip surface defect detection model and construction method and application thereof

The invention discloses an improved YOLOv8 chip surface defect detection model construction method and application, and the method comprises the steps: constructing a network structure of an improved YOLOv8 target detection model, which comprises a Backbone module, a Neck module and a Head module; the Backbone module comprises a multi-layer DCNv3 network, a C2f network and an SPPF network, and outputs a first effective feature layer, a second effective feature layer and a third effective feature layer after performing multi-layer convolution processing on the picture; the Neck module adopts a BiFPN bidirectional feature pyramid feature fusion structure, inputs three effective feature layers output by the Backbone module into a ConcatBiFPN network for bidirectional adaptive fusion, and then outputs the three effective feature layers through a CBAM attention mechanism network; the Head module comprises a Deect network structure, and the Deect network structure is connected with a CBAM attention mechanism network and outputs a target detection result; the improved YOLOv8 target detection model structure is used for accurately recognizing the surface defects of the chip, and the adaptability to different types of defects is improved.
Owner:JIANGSU UNIV

Acrylate modified MS resin as well as preparation method and application thereof in MS sealant

The invention belongs to the technical field of sealants, and particularly relates to acrylate modified MS resin as well as a preparation method and application thereof in an MS sealant. The acrylate modified MS resin disclosed by the invention has the following structural formula: # imgabs0 #. The preparation method of the acrylate modified MS resin comprises the following steps: (1) mixing diisocyanate and acrylate for reaction to obtain a prepolymer; and (2) mixing polyether polyol, isocyanate silane, the prepolymer and a catalyst for reaction to obtain the acrylate modified MS resin. The prepared acrylate modified MS resin is used for preparing an MS sealant. The preparation method of the acrylate modified MS resin provided by the invention is simple in process, mild in reaction condition and convenient in production conversion, and the prepared acrylate modified MS resin is applied to an MS sealant, so that the base material adhesive force, weather resistance and mechanical properties of the MS sealant are improved.
Owner:SHANDONG INOV NEW MATERIALS CO LTD

Preparation method of beryllium-copper alloy material with high beryllium content

The invention provides a preparation method of a beryllium-copper alloy material with high beryllium content, which comprises the following steps of: preparing metal raw materials containing pure copper and beryllium-copper master alloy, smelting to obtain alloy liquid, casting the alloy liquid to obtain a cast ingot, homogenizing the cast ingot to obtain a homogenized casting blank, and hot-rolling the homogenized casting blank to obtain a hot-rolled blank, the preparation method comprises the following steps: carrying out hot rolling on an alloy strip, carrying out hot rolling on the alloy strip to obtain a hot-rolled blank, carrying out annealing treatment on the hot-rolled blank to obtain an annealed blank, carrying out a circulating cold rolling-intermediate annealing process on the annealed blank, and finally carrying out finish rolling and finished product annealing treatment on the alloy strip to prepare the high-beryllium-content beryllium-copper alloy material. And machining passes are many.
Owner:CENT SOUTH UNIV

Ceramic / high-entropy alloy composite particle reinforced aluminum-based composite material and laser additive manufacturing method thereof

The invention discloses a ceramic / high-entropy alloy composite particle reinforced aluminum-based composite material and a laser additive manufacturing method thereof. Firstly, ceramic / high-entropy alloy composite powder and aluminum alloy powder are mixed through ball milling to obtain ceramic / high-entropy alloy composite particle reinforced aluminum alloy composite powder, then the composite powder of the three components is laid on a powder bed, laser power, scanning speed, scanning spacing and the like are adjusted, and laser scanning melting solidification is conducted to prepare the ceramic / high-entropy alloy composite particle reinforced aluminum alloy composite powder. And the ceramic / high-entropy alloy composite particle reinforced aluminum-based composite material is formed. The composite material disclosed by the invention is highly compact, so that the ceramic / high-entropy alloy composite particles can effectively improve the mechanical property of the aluminum-based composite material, and can be used for manufacturing high-performance complex parts for aerospace, automobile rail transit and the like.
Owner:SOUTH CHINA UNIV OF TECH

Reducing type oil pipe centralizer

The invention relates to the technical field of centralizers, in particular to a variable-diameter oil pipe centralizer. Comprising a centralizer body, the centralizer body comprises symmetrically-distributed guide rings, symmetrically-distributed connecting rings and a plurality of spring walls, the connecting rings are fixedly connected between the symmetrically-distributed guide rings, and the spring walls are fixedly connected between the symmetrically-distributed guide rings; the number of the sliding rods is the same as that of the spring walls, and the sliding rods are fixedly connected to the adjacent spring walls and are in sliding connection with the adjacent connecting rings; the number of the extrusion frames is the same as that of the sliding rods, and the extrusion frames are connected into the adjacent connecting rings in a sliding mode. The sliding rod is limited, so that the middle of the lower side spring wall does not deform any more, the situation that the lower side spring wall is affected by the gravity of an oil pipe and the oil pipe integrally moves downwards is prevented, and therefore the situation that large stones on the lower side in the well wall directly make contact and rub with the oil pipe, the oil pipe is damaged, and then the exploitation efficiency of an oil well is affected is avoided.
Owner:DONGYING CHANGRUI PETROLEUM MACHINERY PARTS CO LTD

Glucoside derivative flexible liposome as well as preparation method and application thereof

The invention belongs to the field of personal care, and particularly relates to a glycoside derivative flexible liposome and a preparation method and application thereof, the glycoside derivative flexible liposome comprises a main shell material, a humectant, a wrapped raw material, an auxiliary shell material, a preservative and a solvent; the main shell material is phosphatidylcholine, and the auxiliary shell material is polyquaternium-51; the preservative is any one or more of 1, 2-hexanediol, p-hydroxyacetophenone, methylparaben, phenoxyethanol and caprylyl glycol; the moisturizing agent is butanediol; the wrapped raw material is hydroxypropyl tetrahydrofurantriol; the solvent is deionized water. According to the invention, the permeability and penetration depth of the glassine and the concentration of the glassine at a target position are improved by utilizing a flexible liposome wrapping technology, the bioavailability of the glassine is improved, and the addition amount is reduced under the condition of realizing the same tightening and anti-wrinkle effects, so that the cost is reduced.
Owner:SUZHOU MISIFU COSMETICS CO LTD

Inorganic / organic nano-composite plugging agent for shale drilling and preparation method of inorganic / organic nano-composite plugging agent

The invention discloses an inorganic / organic nano composite plugging agent, which is prepared from the following raw materials in parts by weight: 0.7 to 3.5 parts of modified nano particles, 10 to 50 parts of alkenyl amide monomers, 0.5 to 3 parts of alkenyl associated monomers, 20 to 50 parts of alkenyl sulfonic acid monomers, 10 to 20 parts of alkenyl cationic monomers and 0.5 to 1.0 part of initiators, the modified nano-particles are formed by carrying out surface modification on nano-particles by adopting a coupling agent. According to the invention, by introducing a flexible polymer chain segment with a proper amount of association, strong adsorption and other effects into rigid nanoparticles, the deformability of the nanoparticles and the connection force between the nanoparticles and a shale stratum are improved, so that the plugging capability of the plugging agent on multi-scale micro-pores and micro-cracks of the shale stratum is improved; and the plugging agent has the characteristics of wide particle size distribution, physical and chemical synergistic plugging effect, good high-temperature stability, simple preparation method, easily available raw materials and the like, and is suitable for drilling leakage of shale formations.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Self-curling spiral strain sensor and preparation method thereof

The invention belongs to the technical field of three-dimensional micro-nano manufacturing and sensing, and discloses a self-curling spiral strain sensor and a preparation method thereof, and the method comprises the steps: preparing a patterned graphene conductive film in situ on a top-layer high-molecular polymer film of a flexible film substrate through a laser processing mode; cutting the flexible thin film substrate with the graphene conductive thin film into strip-shaped structures; the swelling effect of the bottom-layer high-molecular polymer film of the flexible film substrate is greater than that of the top-layer high-molecular polymer film, so that the strip-shaped flexible film substrate is subjected to swelling deformation in a solvent, and the self-curling spiral strain sensor can be obtained. The preparation of the flexible spiral structure is realized by utilizing a swelling mechanism, the in-situ preparation of the graphene conductive film is realized by adopting a laser-induced graphene processing mode, the preparation of a multi-level spiral functional structure can be realized by adjusting characteristic parameters, and strain sensors with different sensitivities and working ranges are obtained.
Owner:XI AN JIAOTONG UNIV

Connecting joint of prefabricated reinforced concrete column and prestressed steel reinforced concrete beam and construction technology

PendingCN119531489ABearing capacity advantageStiffness advantageStrutsGirdersReinforced concrete columnConcrete beams
The invention belongs to the field of constructional engineering, and particularly relates to a connecting joint of a prefabricated reinforced concrete column and a prestressed steel reinforced concrete beam and a construction technology. The structure for connecting the joint by adopting the pi-shaped connecting piece is as follows: one end of the prestressed steel reinforced concrete beam is connected with the pi-shaped connecting piece of the prefabricated reinforced concrete column, a concrete layer is arranged at the top of the section steel at the end, the bottom of the section steel is exposed, and a vertically through bolt channel is arranged along the vertical direction; and one end of the prefabricated prestressed steel reinforced concrete beam extends between the upper web plate and the lower web plate of the pi-shaped connecting piece and is in close contact fit with the upper web plate and the lower web plate. According to the structure of the overhanging short beam-flange clamping sleeve connecting joint, an overhanging short beam is arranged at the joint of a prefabricated reinforced concrete column and a prestressed steel reinforced concrete beam, and the prefabricated reinforced concrete column is connected with the prestressed steel reinforced concrete beam through the overhanging short beam on the prefabricated reinforced concrete column; and the prestressed steel reinforced concrete beam is clamped on the flange clamping sleeve at the end part of the overhanging short beam through the flange plate at the end part.
Owner:SHENYANG JIANZHU UNIVERSITY

Wafer clamp, wafer aging test device with wafer clamp and wafer aging test method

The invention relates to the technical field of semiconductor detection, in particular to a wafer clamp, a wafer aging test device with the wafer clamp and a wafer aging test method. The wafer clamp comprises a lower clamp used for bearing a wafer; an upper jig disposed on the upper side of the lower jig so as to be capable of being joined to the lower jig; the sealing component is configured between the upper clamp and the lower clamp and is arranged around the wafer, and when the upper clamp and the lower clamp are jointed, the sealing component is extruded by the upper clamp and the lower clamp in the vertical direction, so that a sealing cavity for accommodating the wafer is defined by the sealing component, the upper clamp and the lower clamp; and the second gas path is communicated to the sealing cavity and is used for providing protective gas for the sealing cavity.
Owner:上海芯诣电子科技有限公司

Connector structure of optical fiber hydrophone array and optical fiber hydrophone array

The invention belongs to the technical field of light sensation detection systems, and discloses an optical fiber hydrophone array connector structure and an optical fiber hydrophone array, the connector structure comprises a wedge block assembly, an optical fiber connector assembly, an inner sheath assembly and an outer bending resistance assembly, an inner wedge block in the wedge block assembly can tightly press a force bearing metal wire of an optical cable on the inner wall of an outer wedge block, and the outer wedge block can tightly press the force bearing metal wire of the optical cable on the inner wall of the outer wedge block; the optical fiber connector assembly sleeves the wedged end of the outer wedge-shaped block and allows an optical fiber unit to extend out, one end of the inner sheath assembly is buckled and pressed on one end, far away from the wedged end, of the outer wedge-shaped block, and the other end of the inner sheath assembly is connected with a protective surface layer of the optical cable in a sealing manner; one end of the half anti-bending sleeve is connected with the half anti-bending sleeve, the other end of the half anti-bending sleeve is connected with the rubber anti-bending sleeve, the half anti-bending sleeve comprises at least two half sleeve units, the inner buckling block part of one half sleeve unit is buckled on the outer buckling groove part of the other half sleeve unit in an angle-adjustable mode, and therefore the phenomenon that the half anti-bending sleeve is prone to being damaged due to large mechanical loads can be avoided.
Owner:NAT UNIV OF DEFENSE TECH

Full-automatic low-temperature control equipment suitable for mechanical property experiment

The invention discloses full-automatic low-temperature control equipment suitable for a mechanical property experiment, in particular to a low-temperature automatic control device in an experiment process, which comprises a liquid nitrogen tank, a low-temperature electromagnetic valve, a solid-state relay, a temperature process controller and a low-temperature experiment box. The low-temperature experiment box comprises a polystyrene box body, a transportation inner pipe, a thermocouple, a sliding heat preservation plate and a heat preservation observation opening. The liquid nitrogen tank is connected with a transportation inner pipe in the low-temperature environment experiment box through a transportation outer pipe, the transportation outer pipe is provided with a low-temperature electromagnetic valve, the low-temperature electromagnetic valve is connected with a solid-state relay and a power supply in series, the solid-state relay is electrically connected with a temperature process controller, and the temperature process controller is directly connected with the power supply; and a thermocouple is arranged in the low-temperature experiment box and is electrically connected with the temperature process controller. The device is cooperatively used with a mechanical property test instrument, so that the mechanical property test of the test piece from the normal temperature to the theoretical value of minus 196 DEG C can be realized, and the selection range of the size of the experimental test piece is greatly widened.
Owner:BEIJING UNIV OF TECH +1

Membrane flap, biopsy valve and endoscope

The invention provides a membrane flap, a biopsy valve and an endoscope, and relates to the field of medical instruments.The membrane flap comprises the membrane flap, the membrane flap is provided with a first surface and a second surface, the second surface faces one side of an instrument tube, and the first surface is located on one side away from the second surface; the membrane flap is provided with a slit and a guide slit, the slit penetrates through the first surface and the second surface, the guide slit is connected with the slit and extends from the slit to the side deviating from the slit, and the guide slit only penetrates through the second surface but does not penetrate through the first surface; and the thickness of the membrane flap at the slit is greater than that of other areas of the membrane flap. Compared with the prior art, the air leakage phenomenon caused by an irregular opening is effectively reduced, whistling generated by membrane flap vibration is remarkably reduced, the sealing performance and the use stability are enhanced, and the operation effect of an endoscope in an operation is improved.
Owner:HUNAN HUAXIN MEDICAL TECHNOLOGY CO LTD

Production method of green sand as-cast high-plasticity nodular cast iron QT450-18

The invention relates to the field of casting, and discloses a production method of green sand as-cast high-plasticity nodular cast iron QT450-18, which comprises the following steps of: preparing pig iron, waste steel and foundry returns according to a certain proportion, and preparing the green sand as-cast high-plasticity nodular cast iron QT450-18 by using auxiliary materials such as a silicon carbide pretreatment agent, a high-temperature graphitization carburant, a rare-earth magnesium silicon iron nodulizer, a silicon barium inoculant and a silicon strontium inoculant. And purity and component stability of molten iron are ensured. In the smelting process, purification and adjustment are carried out through accurate temperature control and segmented addition of auxiliary materials, then spheroidizing is carried out through a pouring method, and the microstructure of a casting is optimized through ladle-to-ladle inoculation and stream inoculation. The final casting has excellent mechanical properties, including tensile strength greater than or equal to 440 MPa, yield strength greater than or equal to 300 MPa, elongation greater than or equal to 16%, and V-shaped notch normal temperature impact absorption energy greater than or equal to 8 J. The method is simple and convenient to operate, high in production efficiency and suitable for large-scale industrial production.
Owner:SHANDONG HUXIWANG GRP FOUNDRY CO LTD

Sealed drawing structure and storage cabinet thereof

The utility model relates to the technical field of storage cabinets, and discloses a sealed drawing structure and a storage cabinet thereof. An air pipe is arranged between the rubber strip and the air bag, the rubber strip is hollow, the rubber strip and the air bag are communicated with each other through the air pipe, the wall face of the rubber strip is fixedly connected with a contact body, the contact body surrounds the rubber strip by a circle and forms an elastic contact face, and the wall face of the rubber strip is further fixedly connected with a flange. A plurality of grooves are formed in the wall face of the blocking edge, the hollow rubber strip is arranged, the air bag is extruded to deform, then air in the air bag is fed into the rubber strip cavity through the air pipe, the rubber strip is inflated to be expanded, and the rubber strip extrudes and pushes the contact body to make the contact body make contact with a drawer needing to be sealed so that sealing can be achieved. The contact body with the air holes can have better deformation capacity, so that the contact body and the drawer are better in attaching effect and better in sealing performance.
Owner:HEZE LIXIN ELECTRONIC TECH CO LTD

Environment-friendly plastic hot press molding device

The invention relates to the technical field of air bubble film processing, and discloses an environment-friendly plastic hot-press forming device which comprises a forming frame, a plurality of conveying rollers used for guiding films to move are rotationally installed in the forming frame, and a hot-press assembly used for hot-press forming of two layers of films is further installed in the forming frame. The outer side of the hot-pressing assembly is further provided with a guide roller used for guiding the film to be attached to the hot-pressing assembly. The hot-pressing assembly comprises two groups of hot-pressing cylinders which are arranged up and down, the outer sides of the two groups of hot-pressing cylinders are both provided with forming holes for forming the film, a plurality of groups of inner heating layers I and inner heating layers II for heating are also arranged in the hot-pressing cylinders, and the inner heating layers I and the inner heating layers II are used for heating the film and a film bubble forming part respectively. The air bubble film is heated before being formed, and meanwhile, the air bubble forming position is also heated, so that the film is good in deformation capacity, and the air bubble film is prevented from being broken or poor in quality.
Owner:ZHEJIANG PLANT BASED MATERIALS CO LTD

Semiconductor laser earphone device for treatment

The utility model provides a semiconductor laser earphone device for treatment, specifically, the earphone device comprises a left earphone unit and a right earphone unit, each of the left earphone unit and the right earphone unit comprises an earplug, a front earphone shell and a rear earphone shell, and each earphone unit further comprises a red light and / or near-infrared semiconductor laser module, and laser emitted by the laser module is emitted through the emission hole on the earplug. The earphone provided by the utility model can be used for treating through laser with specific wavelength, so that the effect of improving blood activity is achieved, the laser can directly irradiate blood in blood capillaries through earholes, the absorption rate is high, and the effect is obvious; and the product is small in size, convenient to use and carry and low in power consumption.
Owner:XIAMEN MEDIRAM HEALTH MANAGEMENT CO LTD

Bionic temporary plugging device and preparation method and temporary plugging process thereof

The invention provides a bionic temporary plugging device and a preparation method and a temporary plugging process thereof. The temporary plug comprises a wrapping layer, a filling material, a rigid temporary plugging ball, a fixing rod and a clamping ring, the wrapping layer comprises a head part and a beard part, the head part is of a hollow structure, the beard part is composed of a plurality of strip-shaped bodies, and the head part and the beard part are separated through a clamping ring; the rigid temporary plugging ball is located in the head of the wrapping layer, and the filling material comprises high-water-absorption polyacrylamide and irregular rigid particles which are alternately distributed in the head of the wrapping layer; one end of the fixing rod is connected with the rigid temporary plugging ball, and the other end penetrates through the clamping ring and is fixed by the clamping ring. The invention further provides a preparation method and a temporary plugging process of the bionic slug. The jellyfish bionic temporary plug adopts a jellyfish bionic structure, self-adaptive plugging is carried out on the eroded shot hole by utilizing the characteristics of easy deformation and large hydrodynamic radius of the jellyfish bionic structure, and the jellyfish bionic temporary plug has the characteristics of high pressure bearing and strong setting, and can adapt to perforation holes of different specifications.
Owner:CHINA UNIV OF PETROLEUM (BEIJING) +1

Steel bar forming production line and method

The invention discloses a reinforcing steel bar forming production line and method, and relates to the technical field of reinforcing steel bar forming, the reinforcing steel bar forming production line comprises a reinforcing steel bar bending forming mechanism and a reinforcing steel bar welding positioning mechanism which are sequentially arranged, a mechanical arm conveying mechanism is arranged on one side of the reinforcing steel bar welding positioning mechanism, and a visual welding arm mechanism is arranged on the other side; the steel bar bending forming mechanism comprises a horizontal material bending frame, double machine heads are installed on one side of the horizontal material bending frame, and the machine heads are correspondingly provided with a material turning frame and a material collecting frame. A plurality of horizontal bending material rotating frames are arranged on the other side of the horizontal bending material frame side by side; the steel bar welding and positioning mechanism comprises a welding table, and a plurality of clamping mechanisms are distributed on the welding table. The mechanical arm conveying mechanism comprises a movable mechanical arm, and the mechanical arm is provided with a hand clamp and an electromagnet. The visual welding arm mechanism comprises a movable welding arm, and the welding arm is provided with a welding gun and a visual camera. The high efficiency of steel bar bending is guaranteed, the automation degree is high, and the steel bar forming efficiency is improved; and mechanical vision and a positioning mechanism are combined, so that the steel bar grabbing precision of the mechanical arm can be ensured.
Owner:QINGDAO UNIV OF TECH +1

Bottom protection structure for battery pack and battery pack

The invention relates to the technical field of battery packs, and discloses a bottom protection structure for a battery pack and the battery pack, the bottom protection structure for the battery pack comprises a liquid cooling plate, a bottom protection plate and a buffer layer; the bottom of the liquid cooling plate comprises a non-flow channel area and a protruding flow channel area; the bottom protection plate is arranged at the bottom of the liquid cooling plate, and the bottom protection plate and the liquid cooling plate are arranged at intervals; the buffer layer is arranged between the liquid cooling plate and the bottom protection plate, and the bottom of the buffer layer abuts against the bottom protection plate; in the flow channel area, the top of the buffer layer abuts against the liquid cooling plate; according to the present invention, the impact force can be effectively absorbed and dispersed when the different regions of the battery pack are impacted so as to ensure that the battery cells in the battery pack are not extruded when the battery pack is subjected to the external force effect, such that the battery pack can be prevented from being damaged, and the battery pack is prevented from being damaged. And the protection level of the battery cells in the battery pack is improved, and the overall safety of the battery pack is ensured.
Owner:GUANGZHOU XIAOPENG MOTORS TECH CO LTD

High-strength steel material for mine roadway support and preparation method thereof

The invention relates to the technical field of metal materials, in particular to a high-strength steel material for mine roadway support and a preparation method thereof, and the high-strength steel material comprises the following components in percentage by weight: 0.04 to 0.10 percent of C, 0.15 to 0.45 percent of Si, 1.20 to 1.80 percent of Mn, 0.20 to 0.50 percent of Cu, 0.15 to 0.40 percent of Cr, 0.10 to 0.35 percent of Ni, 0.08 to 0.25 percent of Mo, 0.015 to 0.045 percent of Nb, 0.03 to 0.08 percent of V, 0.008 to 0.025 percent of Ti, 0.005 to 0.020 percent of RE and the balance of Fe. The preparation method comprises the steps of smelting and refining, continuous casting, heating, rough rolling, finish rolling, segmented controlled cooling and medium-temperature tempering (450-550 DEG C), R is larger than or equal to 620 MPa, A is larger than or equal to 18%, the yield ratio is smaller than or equal to 0.90, KV at 0 DEG C is larger than or equal to 100 J, and the deep-well high-stress roadway support is suitable for deep-well high-stress roadway support.
Owner:PINGDINGSHAN TIANAN COAL MINING +1

Preparation method of high-damping titanium alloy ultrafine wire difficult to machine and deform

ActiveCN119553130AFill in the gaps in the fieldreasonable ideaMachining deformationIngot
The invention provides a preparation method of a high-damping titanium alloy ultrafine wire difficult to machine and deform. The preparation method comprises the following steps: (1) smelting a cast ingot; (2) homogenization treatment; (3) forging treatment; (4) groove rolling; (5) cold drawing processing; and (6) annealing treatment. The high-oxygen-content damping titanium alloy is reasonable in conception, and the machining deformation capacity of the high-oxygen-content damping titanium alloy is improved through a component micro-control and heterogeneous structure toughening technology; and by combining the traditional preparation and processing technology of the titanium alloy wire, the difficulty and threshold of material preparation are reduced, the problem of preparation and processing of the high-oxygen-content damping titanium alloy ultrafine wire is solved, and the method is suitable for large-scale production, popularization and application of fasteners, elastic components and the like.
Owner:INST OF MECHANICS CHINESE ACAD OF SCI

Stress detection method of graphene composite piezoelectric material integrated optical fiber sensing

The invention discloses a stress detection method for graphene composite piezoelectric material integrated optical fiber sensing, and relates to the field of multi-mode sensor integration, and the method comprises the steps: generating a signal through a signal generator, and transmitting the signal to a composite flexible piezoelectric material through a power amplifier; the composite flexible piezoelectric material is used for generating ultrasonic waves, and the ultrasonic waves are conducted in the tested material; the fiber grating sensing and demodulation module is used for demodulating ultrasonic waves conducted in the tested material and transmitting the demodulated ultrasonic waves to the upper computer; the upper computer is used for displaying, storing and processing the demodulated ultrasonic signals, the stress borne by the detected material is obtained, and stress detection of the graphene composite piezoelectric material integrated optical fiber sensor is completed. According to the invention, the problems that the micro stress change in a complex structure cannot be detected in real time and the application environment is limited in the prior art are solved.
Owner:XI'AN POLYTECHNIC UNIVERSITY

Rotatable welding head structure

The utility model discloses a rotatable welding head structure, which relates to the welding technical field, and comprises a welding controller, a connecting wire and a welding head body, the connecting wire is fixedly installed at the side end part of the welding controller, the welding head body is fixedly installed at the side end part of the connecting wire, and the welding head body is fixedly installed at the side end part of the connecting wire. The connecting wire is provided with an adjusting mechanism facilitating rotary welding of the welding head body, the adjusting mechanism comprises a fixing pipe and two rotating shafts, the fixing pipe is fixedly connected to the circumferential end of the connecting wire in a sleeving mode, and the number of the rotating shafts is two. According to the welding head, the corrugated pipe is arranged and located on the outer side of the connecting wire, the connecting wire can be protected conveniently when the welding head body rotates and is bent, the situation that the position close to the welding head body is bent frequently and only the connecting wire is abraded is avoided, the deformation effect of the corrugated pipe is good, and the corrugated pipe can deform conveniently along with rotation of the welding head body.
Owner:DALIAN HENGSHUN WANTONG IND EQUIPMENT CO LTD

Composite solid electrolyte material and preparation method and application thereof

This invention relates to the field of solid-state battery technology, and particularly to a composite solid-state electrolyte material, its preparation method, and its application. The composite solid-state electrolyte material contains a crystalline phase substance with the general chemical formula: B%A a RE b X 1 c D g +C%A d M e X 2 f D h Where A represents charge carriers; RE represents rare earth elements; M represents metallic elements; X represents... 1 X 2 D is a halide anion; A is an anion doping element or group; a RE b X 1 c D g and A d M e X 2 f D h It is a crystalline phase substance; B% is A a RE b X 1 c D g The mass fraction of the composite solid electrolyte material; C% is A d M e X 2 f D h The mass fraction of the composite solid electrolyte material is defined as follows: 0 ≤ a ≤ 3, 0 < b ≤ 1, 0.5 < c ≤ 12, 0 < d ≤ 5, 0 < e ≤ 2, 1 < f ≤ 20, 0 ≤ g ≤ 4, 0 ≤ h ≤ 5; 85 < B + C < 98, 10% < B% ≤ 85%; 10% < C% ≤ 85%, 0.2 ≤ C / B ≤ 10. The composite solid electrolyte material of this invention includes crystalline and amorphous phase components, giving it high ionic conductivity. The use of moisture-resistant non-metallic halide components instead of traditional halides and oxyhalides in the raw materials also provides it with good air stability.
Owner:GUOKE RE ADVANCED MATERIALS CO LTD +1

Graded-aperture flexible aerogel heat insulation coating capable of serving for long time in environment of 1100 DEG C

The invention discloses a graded-aperture flexible aerogel heat-insulating coating capable of serving for a long time in an environment of 1100 DEG C. The graded-aperture flexible aerogel heat-insulating coating belongs to the technical field of heat-insulating coatings and comprises the following components in parts by mass: 10-30 parts of aluminum dihydrogen phosphate, 10-35 parts of water, 10-30 parts of gamma-glycidoxypropyltrimethoxysilane, 5-17 parts of alpha-aluminum oxide and 1-3 parts of an emulsifier. 1-3 parts of a defoaming agent, 1-6 parts of aerogel nanofibers and 3-5 parts of aerogel powder. The back temperature of the aerogel coating with the thickness of 2-3mm can be controlled below 300 DEG C under the condition that the front surface is heated at 1050-1100 DEG C, so that the aerogel coating meets the heat insulation requirements of metals such as steel structures and the like, and has excellent fireproof performance. The coating is simple in preparation process, low in production cost, excellent in heat insulation and fireproof performance and wide in application prospect.
Owner:HARBIN INST OF TECH

Flexible printed circuit (FPC) flexible electrode

The invention provides an FPC (Flexible Printed Circuit) flexible electrode. The FPC flexible electrode comprises an FPC flexible electrode interface end, an FPC flexible electrode flat cable and an FPC flexible electrode contact end, the FPC flexible electrode contact end comprises a PC base attached to the FPC flexible electrode flat cable and a silica gel base connected to the other end of the PC base, mounting holes are formed in the PC base, a plurality of contacts are distributed on the silica gel base, and the mounting contacts are arranged on the periphery of the mounting holes; the contact end of the FPC flexible electrode is provided with the base made of the medical PC material and the silica gel, the FPC flexible electrode has good mechanical strength and certain deformability, the mounting holes are formed in the base made of the medical PC material, the FPC flexible electrode can be fixed to various bony structures through screws, and good contact with nerves is formed through the electrode contacts on the silica gel base.
Owner:PHOTONICS INTEGRATION (WENZHOU) INNOVATION RES INST