754 results about "High volume manufacturing" patented technology

Silicon photonics technologies adds integrated optics functionality to CMOS integrated circuits thereby leveraging high volume manufacturing. Independent of geometry or technology these silicon photonic devices require packaging with single mode optical fibers to interface to the optical network and / or co-packaging with active semiconductor devices, discrete microoptoelectromechanical systems (MOEMS) s or monolithically integrated MOEMS. Stringent performance constraints and minimizing manufacturing costs / times are consistent demands on such photonic circuits. Accordingly, there is a demand for low-cost and low-loss optical coupling technologies for packaging that can easily be scaled for mass production that overcome limitations in the prior art. The inventors have established design methodologies, packaging schemes and component designs that leverage automated passive assembly techniques for speed / cost in combination with directly written optical interconnects that allow for offsetting the losses that would arise from the manufacturing tolerances of these passive assembly techniques.

The invention provides a multilayer circuit board and a processing method thereof, a chip system and electronic equipment, and the processing method comprises the steps: processing a second hole channel, a first conductive pattern and a second conductive pattern on a first substrate, and processing a third hole channel on a second substrate; the first substrate, the second substrate and the first insulating layer are stacked, pressed and fixed; the processing method further comprises the following steps: carrying out electroplating hole filling on the first substrate to form a second conductive channel; the processing method further comprises the steps that the second substrate is electroplated so that a sixth conductive pattern and a third conductive channel can be formed, the first insulating layer comprises a first conductive part, and the first conductive pattern, the second conductive pattern and the sixth conductive pattern are electrically connected with the second conductive channel through the third conductive channel and the first conductive part. The second hole channel and the third hole channel are filled in an electroplating hole filling mode, so that the wiring density and the chip signal transmission capability of the multilayer circuit board are improved, and the electrical performance and the thermal performance of the multilayer circuit board are improved; electroplating hole filling is suitable for mass production, and the process yield is stable.

The invention belongs to the technical field of metal material forming, and relates to a high-strength plastic titanium-based composite material annular part and a preparation method and application thereof. The preparation method comprises the following steps: firstly, uniformly mixing titanium alloy powder and reinforced phase powder, then preparing an annular blank according to the technological process of smelting, plasma rotating electrode atomization, degassing seal welding, hot isostatic pressing and ring rolling, and finally, annealing the annular blank to prepare the target annular part. According to the method, the titanium-based composite material powder is prepared by replacing a traditional laboratory small-batch ball milling method with a large-batch mixing method, a vacuum induction melting rod manufacturing method and a plasma rotating electrode atomization method, a reinforced phase can be introduced into a titanium matrix crystal and uniformly distributed, and the method is suitable for industrial large-batch production requirements; the titanium-based composite material annular part is prepared through the technology of powder metallurgy blank making and thermal deformation, and the effects of shortening the machining period and improving the material utilization rate and the forming rate are achieved through the precise size of powder metallurgy forming and the high efficiency of special-shaped ring rolling.

The invention discloses a weak-rigidity free-form surface monocrystalline silicon reflecting lens and a processing method thereof. The method comprises the following steps: obtaining a monocrystalline silicon block; cutting into blocks; diamond wire cutting; precisely grinding the back surface; performing slicing; the free-form surface sucker adsorbs the lens; precisely grinding the front surface into a cylindrical surface; polishing the magnetorheological elastomer; releasing the lens; the cylindrical sucker adsorbs the lens; precisely grinding and thinning the back surface; releasing the lens; cutting edges and carrying out wet etching on the back surface; and carrying out ion beam modification processing to achieve the final surface shape precision of the free-form surface. According to the X-ray reflecting lens machining method, the free-form surface weak-rigidity reflecting mirror is clamped and deformed into the cylindrical surface for machining, the whole process is ultra-precision grinding and polishing of the cylindrical surface, the machining method is simple and mature, the manufacturing cost is extremely low, dependence on an ultra-high-precision multi-axis linkage machine tool is completely eliminated, and the machining precision is greatly improved. And the machining efficiency is greatly improved, and the method is suitable for mass production of reflectors.

The invention discloses a preparation method for ensuring thickness uniformity and form and location tolerance of a coating of a slender shaft, the slender shaft is a slender stepped shaft-shaped part, the preparation method comprises base body processing before plating, hard chromium plating and machining after plating, in the base body processing process stage before plating, a center hole is adopted as a processing reference, finish machining is carried out according to the shape of the part, and the thickness uniformity and the form and location tolerance of the part are guaranteed. It is ensured that the form and position error and dimensional tolerance of the machined part meet the requirements; in the hard chromium plating stage, the non-chromium-plated part is protected, and the chromium-plated part is subjected to hard chromium plating; and in the post-plating machining stage, the center hole is adopted as a machining standard, post-plating rough machining is conducted firstly, then post-plating finish machining is conducted, grinding is conducted to meet the design requirement, and a plated workpiece is obtained. By the adoption of the preparation method, the problem of machining deformation of the slender shaft type structural part is thoroughly solved, the machining performance is stable, the production efficiency is high, special equipment and tools do not need to be configured, and the method is suitable for large-scale production and machining.

The invention discloses a NaFePO4 modified sodium ferric phosphate pyrophosphate composite positive electrode material, a preparation method thereof, a positive plate and a battery, the chemical formula of the composite positive electrode material is Na < 4 + x > Fe < 3 + x-y > (PO4) < 2 + x > (P2O7), 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 lt, 0 Xlt; 0 < = y < = 0.1. Wherein x represents the content of NaFePO4, and when 0 lt, x represents the content of NaFePO4; x is more than 0.3 and less than or equal to 0.3, the material exists in the form of a solid solution, no NaFePO4 phase appears, when x is more than 0.3 and less than 1, NaFePO4 appears in the form of a second phase, and the material is a composite phase of NaFePO4 and Na4Fe3 (PO4) 2 (P2O7). The positive electrode material provided by the invention has the characteristics of high theoretical specific capacity, long cycle life and high average working voltage in the aspect of electrochemical performance, is low in cost, environment-friendly, smooth in synthesis path and easy for mass production, and is an ideal sodium ion battery positive electrode material.

The utility model discloses a drawer-type core-pulling structure wheel speed sensor injection mold which comprises an upper mold base, a lower mold base, a lower mold base and a plurality of positioning guide columns, wherein the upper mold base is provided with a profiling mold cavity and a plurality of positioning guide columns; a fixed seat, a core-pulling seat and a plurality of positioning guide holes are arranged on the lower die seat, the plurality of positioning guide holes are matched with the plurality of positioning guide columns for positioning, a chip die cavity and a wire positioning groove are formed in the top of the fixed seat, a bushing die cavity is formed in the fixed seat, and an opening communicated with the bushing die cavity is formed in the side surface, facing the core-pulling seat, of the fixed seat. The core pulling seat is horizontally connected with the lower die seat in a sliding mode and can move towards the fixing seat, a lining positioning die core is arranged on the side face, facing the fixing seat, of the core pulling seat, and the lining positioning die core can penetrate through the opening and stretch into the lining die cavity; the injection mold is exquisite and flexible in structure and refined, meets the requirement for large-scale production of small-tonnage machines and has the advantage of reducing energy conservation and energy consumption of the machines, and the development cost can be reduced by about 30%.

The invention discloses a low-splash laser welding method suitable for X-Pin motor stator pins, and relates to the field of laser processing application, the method comprises the following steps: configuring a pin clamping tool, and clamping and lapping the pins of a permanent magnet motor stator by using the pin clamping tool; performing laser welding on the pins of the permanent magnet motor stator by using a pre-configured composite laser welding lens based on the laser welding position, the laser welding path and an anti-reflection mechanism; and a laser beam spot control mechanism is utilized to expand the range of a molten pool for laser welding and reduce the welding energy density of laser. According to the X-Pin motor copper welding device, the characteristics that light spots of a semiconductor blue light laser are uniform, the blue light absorptivity of copper is high, and the absorptivity changes slightly along with the temperature are utilized, the mode that the blue light spots replace infrared annular light spots is adopted, extremely-low splashing of X-Pin motor copper welding is achieved, the use cost is lower, and large-batch production is better facilitated.

According to the cold extrusion forming process and die for the thin-wall pure aluminum camera shell, a 1060 pure aluminum plate serves as a blank, surface pretreatment, first extrusion, annealing, surface retreatment and second extrusion are conducted in sequence, and finally a small amount of machining is conducted to obtain a finished product. According to different extrusion procedures, dies matched with the method are divided into a floating radial extrusion die and a floating combined extrusion die, and each of the floating radial extrusion die and the floating combined extrusion die comprises an upper die assembly, a middle floating die assembly and a lower die assembly; the floating radial extrusion die forms a radial extrusion cavity in the die assembly process, first-order extrusion is completed, and a radial extrusion forging stock is obtained; and the floating combined extrusion die forms a combined extrusion cavity in the die assembly process, two-order extrusion is completed, and a combined extrusion forging stock is obtained. Radial extrusion and combined extrusion share the same press frame, the die cost is remarkably reduced, and the die is suitable for large-scale production of thin-wall pure aluminum camera shells in multiple scenes such as vehicle-mounted scenes and security and protection scenes.

The invention discloses a detection assembly system and a detection assembly method for a frame bushing, the detection assembly system comprises a press fitting part, a positioning part, a first detection part, a second detection part, a third detection part and a control part, the problem of separation of detection and assembly is solved, the axial rigidity detection of the bushing can be completed in the initial stage of press fitting, and the detection efficiency is improved. Extra detection procedures are not needed, the overall production cycle is greatly shortened, and the method is suitable for the large-batch production rhythm; potential quality hazards caused by sampling detection are eliminated, and abnormal linings are prevented from flowing into subsequent links; the positioning ends of the positioning pieces can be close to or far away from each other, and by combining the supporting design of the guide inclined surfaces, the tool can be adaptive to bushing outer sleeves of different sizes, frequent tool replacement is not needed, and the equipment debugging cost is reduced; while the assembly precision of the bushing is ensured, high efficiency, no damage and full coverage of rigidity detection are realized, the production quality and efficiency of the auxiliary frame are obviously improved, the later rework cost is reduced, and the control performance of the whole vehicle and the stability of NVH (Noise Vibration and Harshness) performance are ensured.

The invention discloses a rapid punch forming process and die based on multiple stations. The die comprises a workbench, an upper die, a lower die, a driving assembly and a combined driving mechanism. The air cylinder drives the lower die to ascend and descend and suck blanks in a vacuum mode, the motor drives the upper die to conduct stamping, the dies are locked during stamping and accurately rotate by 90 degrees to switch stations during resetting by means of differential meshing of a groove and a plane of a tooth part, and finished products fall into a collecting box after being demolded through gravity. The problems of insufficient station switching precision, action interference and low automation degree of a traditional multi-station mold are solved, full-process automatic linkage of adsorption, punching, rotation and demolding is achieved through cooperation of pneumatic and magnetic attraction assemblies, and manual intervention is avoided. The four-station continuous punching machine has the characteristics of four-station continuous machining, motion interlocking interference prevention, accurate positioning, high efficiency and stability, the mass production efficiency and the finished product percent of pass are remarkably improved, and the four-station continuous punching machine is suitable for high-speed punching forming in the fields of automobile parts, electronic elements and the like.

The invention relates to a method for manufacturing a high-performance blackbody radiation layer, which comprises the following steps of: firstly, providing a growth substrate for growing the blackbody radiation layer; then, photoetching patterning is carried out on the substrate; then, plasma etching is carried out on the substrate containing the photoetching pattern; and finally, carrying out high-temperature annealing treatment on the substrate. The MEMS infrared light source is simple in process flow, compatible in preparation process and semiconductor process, suitable for process integration and mass production, and beneficial for reducing the cost of the MEMS infrared light source, the black body radiation layer is obtained by carrying out plasma etching on the photoresist and then carrying out high-temperature annealing, the patterning of the black body radiation layer is equal to the patterning of the photoresist, and the manufacturing cost of the black body radiation layer is reduced. Compared with other types of black body radiation layers, the black body radiation layer has the advantage of being easy to manufacture tiny patterns.

The invention discloses a standard formwork full-automatic production system, and relates to the technical field of standard formwork automatic production, and the standard formwork full-automatic production system comprises a production management module which is used for storing production process parameters of various models of formworks and configuration information of formwork assemblies, and carrying out the calling according to the demands of production orders; the reloading module is provided with a standardized formwork interface and a positioning mechanism and is used for mounting and dismounting the formwork, and the monitoring module comprises sensors mounted at the mounting position of the formwork and key parts of production equipment. According to the full-automatic production system for the standard formwork, through the mode that software and hardware of the production management module and the reloading module are combined, the problem of formwork model switching in multi-model and large-batch production is effectively solved, and the flexibility and production efficiency of the full-automatic production system for the standard formwork are improved; manpower is effectively reduced, the efficiency is improved, the labor intensity is reduced, the safety coefficient is improved, and diversified requirements in a real production scene are met.

The present invention is directed toward an addressable ignition stage which produces an output sufficient to detonate a secondary explosive, generally. The present invention comprises addressability and ignition functions that may be used together or separately to incorporate a high-power resistor with a thermally conductive substrate allowing for operation at high temperatures for ignition. The ignition stage is amendable to high volume production, exhibits a high degree of reliability, robustness and operational dependability for use alone or configurable into existing technology.

The invention relates to a photoelectric integrated double-frequency laser for coherent wind measurement, which comprises a first light source module, a second light source module, a first coupler module, a second coupler module, a third coupler module, a first beam splitter module, a second beam splitter module, a third beam splitter module and a first balanced photoelectric detector module, a second balance photoelectric detector module, a modulator module, an optical phase-locked loop module and a transceiver. Based on the silicon-based optoelectronic chip technology and the photoelectric hybrid packaging technology on the structural level, the coupler, the beam splitter and the photoelectric detector are integrated on the silicon optical chip, and the silicon optical chip, the DFB chip, the coupling optical path, the electrical module and the like are packaged together by utilizing the photoelectric hybrid packaging technology, so that high-density integration is realized; a heterodyne digital optical phase-locked loop technology is applied to a system level, so that a specific frequency difference exists between output signal light and reference light, and pulse light with a high extinction ratio is generated in a modulator cascading mode. Compared with a conventional single-light-source system scheme, the heterodyne Doppler wind measurement laser radar system can greatly improve the integration level, reduce the power consumption and the cost, and is beneficial to mass production, and compared with a homodyne detection mode, heterodyne detection is higher in measurement speed, simpler in scheme and better in stability. The system has extremely high expansibility, and can be applied to systems of optical fiber sensing, laser remote sensing and cold atomic clocks through operations of replacing a transmitting-receiving device, modifying a control program and the like.

The invention discloses a double-metal gradient diffusion layer modified high-nickel ternary positive electrode material and a preparation method thereof. The preparation method comprises the following steps: filtering and uniformly dispersing high-nickel ternary positive electrode material powder; introducing inert gas into the atomic layer deposition system, and raising the temperature to a target temperature; respectively preheating the metal precursors A and B to proper temperatures; the preparation method comprises the following steps: sequentially introducing a metal precursor A, precursor water, a metal precursor B and precursor water into a reaction chamber, alternately depositing according to a pulse-reaction-purging sequence, and repeatedly circulating the process to obtain the bimetallic oxide coated high-nickel ternary positive electrode material, and post-annealing treatment. According to the bimetal gradient diffusion layer modified high-nickel ternary positive electrode material prepared by the preparation method disclosed by the invention, the lithium storage performance of the high-nickel ternary material is greatly improved, excellent cycling stability and rate capability are obtained, the coating layer is accurate and controllable, the preparation process is simple, meanwhile, large-batch production can be realized, and relatively high application value is achieved.

The invention relates to an integrated quantum bit output link. The integrated quantum bit output link comprises three sections of circulators; the load is arranged on the three-section circulator, and the load is used for absorbing reversely transmitted signals; a connector is arranged in the Josephson parameter amplifier, and the Josephson parameter amplifier is connected with the three-section circulator through the connector. According to the integrated quantum bit output link provided by the embodiment of the invention, the Josephson parametric amplifier and the three-section circulator are directly transited through the coaxial connector, so that the quantum bit can still keep good performance in a super low-temperature environment, and the effects of high integration, high heat conduction and magnetic shielding are achieved. The overall structure of the device is firm and reliable, parts forming the device are simple, assembly and mass production are easy, and the size of an integrated quantum bit output link is effectively reduced.

The utility model relates to the technical field of vertical band sawing machines, and discloses a steel tube bundle end face vertical band sawing machine which comprises a main body mechanism, a fixing mechanism and a driving mechanism, the driving mechanism comprises a motor and a transmission part and is responsible for driving a saw blade to conduct cutting operation, and the vertical band sawing machine is a main cutting tool. The notch provides a movement path for the saw blade on the operation table, the sliding rail is used for guiding and stabilizing movement of a workpiece, and the control panel provides an operation interface for an operator and is used for controlling operation parameters and states of equipment. The high efficiency of the working process is optimized, due to the fact that the automatic fixing and driving mechanism is adopted, the cutting process is faster and more coherent, the requirement for manual operation is reduced, the production efficiency is greatly improved, the automation degree of the equipment not only accelerates the operation speed, but also reduces material waste through accurate control, and the production cost is reduced. Efficient utilization of resources is ensured, and the method is particularly important for mass production.

The utility model discloses a novel automatic tapping machine which comprises a machine frame, a tapping device and a vibration disc. The tapping device is arranged above the rack; the vibration disc is arranged above the placing table assembly and located beside the tapping device. According to the novel automatic tapping machine, equipment can automatically complete the processes of tapping, discharging and the like, manual intervention is reduced, the labor intensity is lowered, and the production safety is improved; the equipment is reasonable in structural design, convenient and fast to maintain and capable of meeting the requirement for long-time efficient mass production; the device is suitable for workpieces of various materials and sizes and can meet different thread machining requirements.

The invention provides an improved trench super-junction MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) which comprises an epitaxial N-type substrate layer, P columns, N columns, an interlayer insulating layer, a body region, a source region, a metal layer, grid polycrystalline silicon, a grid oxide dielectric layer and a dielectric isolation layer, wherein the P columns and the N columns are arranged on the epitaxial N-type substrate layer in a staggered manner; the grid polycrystalline silicon, the grid oxide dielectric layer and the dielectric isolation layer are arranged on the source region; and the P column is a combined P column formed by a P-type layer formed by deep trench injection and P-type epitaxial filling. According to the improved groove super-junction MOSFET provided by the invention, the mixed P column is formed by the bottom formed by injection and the P layer formed on the side wall and the subsequently filled P epitaxial layer, and the P column and the original N-type epitaxial layer form the PN junction, so that the original PN junction is reserved, the advantage that the groove is easy to fill is combined, the product stability is greatly weakened by the factors of process fluctuation, and the product quality is improved. The method is suitable for large-scale production of a production line, and the product cost performance is high.

The invention relates to the technical field of automobile stamping dies, in particular to an automobile headlamp mounting plate stamping die and a stamping method. Comprising a lower die base, the upper die holder is movably mounted at the top of the lower die holder; a stamping female die is installed at the bottom of the upper die base. A mounting plate is formed by the stamping male die and the stamping female die. The plate cutting mechanism is installed on the lower die base and located on one side of the stamping male die, and the plate cutting mechanism can cut the plate into trapezoidal blanks; the reversing mechanism is installed on the lower die base and located between the stamping male die and the plate cutting mechanism, and the reversing mechanism can horizontally rotate the trapezoid blank to adjust the placing direction. Compared with the prior art, a metal cutting device does not need to be additionally arranged for plate cutting, and the purchase cost of mechanical equipment and personnel requirements can be reduced; after the plates are cut into the trapezoidal blanks, the trapezoidal blanks do not need to be transferred, time consumed for material transferring production is saved, then the production operation efficiency is improved, and the plate cutting device is particularly suitable for large-scale production operation.

The invention discloses a large-size high-precision torque sensor elastomer which comprises the following components: C, Si, Mn, P, S, Cr, Ni, Mo and Fe. The preparation method comprises a vacuum arc furnace smelting process, a forging and post-forging normalizing and high-temperature tempering process, a rough machining process, a quenching and tempering heat treatment process, a cold treatment process and a finish machining process, wherein the finish machining process and the vibration aging destressing process are carried out according to the size requirement of the sensor elastomer part. According to the method, residual stress is removed and a sensor material structure is strengthened and stabilized through a three-stage aging process of heat treatment aging, cold treatment aging and external field vibration aging; the elastomer prepared by the method combines good structure stability, relatively small thermal expansion coefficient and excellent comprehensive performance, can meet the use requirements of different specifications, large sizes and high-precision torque sensor elastomers, can work in atmospheric environments of different atmospheres, and can be used for mass production of elastomer materials.

The invention discloses a thermal radiation forming device and a flexible glass production line, and relates to the technical field of flexible glass production. The thermal radiation forming device comprises an air outlet temperature control mechanism and a soaking spray pipe. The soaking spray pipe comprises a ventilation pipe and a soaking plate, one end of the ventilation pipe is connected with the air outlet temperature control mechanism, the other end of the ventilation pipe is connected with the soaking plate, an air return channel is arranged in the ventilation pipe, and the air outlet temperature control mechanism is used for enabling airflow with preset temperature, preset speed and preset flow to flow into the ventilation pipe so that the airflow can flow out through the air return channel under the blocking effect of the soaking plate. The vapor chamber is used for forming a temperature field when airflow passes through so as to carry out heat radiation on the formed flexible glass tape. According to the thermal radiation forming device provided by the invention, accurate thickness adjustment can be realized in the forming process, the production steps are simplified, the production efficiency is improved, the production cost is reduced, and large-batch production of flexible glass is facilitated.

A self-assembly method of an LED display device comprises the following steps that S1, a driving board is provided, a plurality of bonding pads are arranged on the front face of the driving board, and each bonding pad is provided with first metal; s2, the driving plate is heated to a first temperature interval higher than the melting point of the first metal, so that the first metal is molten to form a liquid metal adhesion point; s3, a large number of LED devices provided with soft magnetic layers are applied to one side of the front face of the driving board; s4, a first magnetic adsorption piece is arranged on one side of the back face of the driving board, the LED device is adsorbed to the front face of the driving board, and the welding face of the LED device is made to be infiltrated and adhered to the liquid metal adhesion points so as to be captured by the bonding pad; s5, removing the LED devices which are not captured by the bonding pad on the driving board; and S6, the temperature of the driving board is reduced, so that the liquid metal bonding points are solidified to form welding, and the LED display device is manufactured. The manufacturing efficiency of the LED array device can be greatly improved, the requirement of mass production is met, and the manufacturing cost can be effectively reduced.

The invention provides a metal foil with a liquid metal layer and a preparation method and application thereof. The preparation method of the metal foil with the liquid metal layer comprises the following steps: (1) adding liquid metal into a hot solution, wherein the hot solution is selected from an alkaline solution or an acid solution; and (2) metal foil is immersed in the hot solution, the liquid metal makes full contact with the metal foil, and then the metal foil is taken out, cleaned and aired. An acid solution or alkali solution treatment method is adopted, an oxidation film on the surface of the liquid metal is removed, the liquid metal makes direct contact with the metal foil, the related reaction between the liquid metal and the metal foil is promoted, the bonding capacity between the liquid metal layer and the metal foil is improved, the risk of liquid metal leakage is avoided, and meanwhile, the liquid metal layer is prevented from being damaged. The liquid metal is uniformly distributed on the surface of the metal foil, the thickness is controllable, the thermal interface material with excellent thermal conductivity can be obtained, the preparation method is simple, the preparation speed is high, the cost is low, and mass production can be carried out.

The invention belongs to the field of gas-sensitive sensing materials, and particularly relates to a preparation method and application of an MXene-based composite conductive MOF material. An in-situ formation hydrogen fluoride etching method is adopted to prepare multiple layers of MXene nanosheets easy to disperse, after the multiple layers of MXene nanosheets are changed into a few layers or a single layer through an intercalator and a physical stripping method, Cu metal ions are added for dipping treatment to form tight combination, and then 2, 3, 6, 7, 10, 11-hexahydroxybenzophenanthrene (HHTP) and the multiple layers of MXene nanosheets are mixed and reacted. The synthesized Cu-HHTP / MXene nano composite material has high sensitivity, low detection line, good selectivity and long-term stability to triethylamine gas at room temperature, so that a high-performance triethylamine gas sensor is developed. In addition, the device is simple in process, small in size and suitable for mass production, and has a wide application prospect in the aspect of triethylamine detection.

The application belongs to the technical field of metal material forming, and relates to a high-strength plastic titanium-based composite material ring-shaped piece and a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing titanium alloy powder and reinforcing phase powder, preparing a ring-shaped blank according to a process flow of "melting -> plasma rotating electrode atomization -> degassing and sealing welding -> hot isostatic pressing -> ring rolling", and finally performing annealing treatment on the ring-shaped blank to obtain a target ring-shaped piece. The application replaces the traditional laboratory small-batch ball milling method for preparing titanium-based composite material powder by using "large-batch mixing + vacuum induction melting rod preparation + plasma rotating electrode atomization method", so that the reinforcing phase can be introduced into the titanium matrix crystal and uniformly distributed, and the application is suitable for industrialized mass production requirements. The titanium-based composite material ring-shaped piece is prepared through the "powder metallurgy blank preparation + hot deformation" process, the size accuracy of powder metallurgy forming and the high efficiency of special-shaped ring rolling are utilized to achieve the effects of reducing the processing period, improving the material utilization rate and the forming rate.

Inconclusive and inconsistent results from existing haptic testing systems, e.g. for trackpads, which include rigidly mounted resistive load cells and accelerometers, prevent accurate results, especially in a high-volume production context. The use of a rigidly mounted sensor is unsuitable because a trackpad will generally be softer than the actuation system, whereby, when the haptic event is fired, the vast majority of the energy will be lost in the trackpad, while the sensor remains almost stationary. Accordingly, an improved test probe for a haptic device configured for mounting on a robotic arm, comprises: a contact tip configured for contacting the haptic device; a sensor configured for measuring a threshold force of the piezoelectric actuator device, and an haptic characteristic, e.g. acceleration, of a resulting haptic response thereof at a same time and a same location; and a compliant element configured for enabling the sensor to move relative to the haptic device.

The invention belongs to the technical field of photovoltaic adhesive film anti-aging, and provides an EVA photovoltaic adhesive film anti-aging auxiliary agent and a preparation method and application thereof.The EVA photovoltaic adhesive film anti-aging auxiliary agent is prepared through the steps that after a certain amount of peroxide initiator, a reaction type hindered amine light stabilizer containing carbon-carbon double bonds and EVA resin are evenly mixed, the mixture is extruded, and the EVA photovoltaic adhesive film anti-aging auxiliary agent is obtained; and reacting and extruding in a double-screw extruder to obtain the product. The preparation method of the anti-aging auxiliary agent for the EVA photovoltaic adhesive film provided by the invention is simple, mass production can be realized, and the anti-aging performance of the EVA photovoltaic adhesive film prepared by adopting the anti-aging auxiliary agent for the EVA photovoltaic adhesive film is remarkably improved.

The invention discloses a layered oxide positive electrode material cooperatively regulated by Cu, Zn, Fe and Mg, a preparation method, a positive plate and a battery, the layered oxide positive electrode material of the sodium ion battery provided by the invention has excellent electrochemical performance, the chemical formula is Na < 0.67 > Ni < 0.145-x > Cu < 0.1 > Zn < 0.05 > Fe < 0.07 > Mn < 0.635 > Mg < x > O < 2 >, and x < lt > is greater than or equal to 0; and 0.1. The positive electrode material prepared by the invention has long cycle stability, high rate capability and relatively low cost price, and further promotes the research and development of the positive electrode material of the sodium-ion battery; meanwhile, the positive electrode material provided by the invention is of a P2 / P3 two-phase composite structure, can well maintain structural stability, inhibit irreversible phase change and promote sodium ion transmission, and has more excellent electrochemical performance. In addition, the positive electrode material provided by the invention is simple in synthesis method, excellent in electrochemical performance and easy to produce on a large scale.