25results about How to "Consistent performance" patented technology

This application relates to the field of biomedical technology, specifically disclosing a highly liquid-stable SUMO fusion influenza B NP antigen and its preparation method. The antigen is a fusion protein of a SUMO-tagged peptide and an influenza B virus nucleoprotein NP. The SUMO-tagged peptide is directly linked to the N-terminus of the influenza B virus nucleoprotein NP via peptide bonds. The antigen is dissolved in a storage buffer for liquid preservation. The preparation method includes key steps such as fusion gene construction, vector engineering construction, host transformation screening, induced expression culture, and bacterial cell disruption and purification. This antigen can be used for clinical detection of influenza B virus, preparation of quality control materials, and immunogen development. It exhibits excellent liquid preservation stability, maintaining good immunoreactivity even after long-term storage under low-temperature liquid conditions. The preparation method of this application is simple and controllable, requiring no inclusion body refolding step, and can efficiently obtain high-purity and homogeneous soluble fusion antigen.

The invention relates to high-solid-content AlN ceramic slurry for tape casting, a substrate and a preparation method of the substrate, and belongs to the field of ceramic substrates. The ceramic slurry is prepared from the following components in percentage by mass: 60 to 68 weight percent of high-purity AlN powder, 3 to 6 weight percent of dispersing agent, 3 to 5 weight percent of binding agent, 4 to 6 weight percent of plasticizer, 3 to 6 weight percent of sintering aid and 32 to 45 weight percent of solvent, the mass ratio of the plasticizer to the binder ranges from 3: 5 to 4: 5. By regulating and controlling the proportion of the dispersing agent in the AlN ceramic slurry and the solid content of the high-purity AlN powder, the slurry has excellent flowability, dispersity and stability while maintaining high solid content, and is suitable for a tape casting process. The AlN ceramic substrate prepared through sintering is high in density and excellent in heat conductivity, and engineering application can be achieved.

The present application relates to the technical field of resin, in particular to a conductive polypropylene composite material and a preparation method thereof.In view of the problems of poor processing fluidity, easy shear damage of conductive network and deterioration of mechanical properties caused by high filling of conductive filler in the prior art, the present application realizes the low volume resistivity, high melt flow rate and excellent mechanical toughness by the solid phase pre-coating technology, and effectively balances the conductivity, processability and strength.

The invention discloses a sensor product classification method based on a multi-modal condition, and relates to the technical field of product classification, and the method comprises the steps: defining the multi-modal condition and a standard value of a sensor; performing preprocessing operation on the multi-dimensional measurement characteristic data of the sensor, and screening effective samples to obtain a standardized deviation rate matrix; constructing a multi-dimensional similarity component for any two effective samples; setting a similarity component weight, and performing weighted fusion to obtain a comprehensive similarity; and the comprehensive similarity is converted into distance metric, effective samples are clustered by adopting a DBSCAN algorithm, a clustering result is output, and classification operation of sensor products is realized. Through the multi-dimensional similarity component, the classification result can be consistent with the actual performance of the sensor, the weight of the similarity component can be adjusted according to business requirements, classification targets of different application scenes can be adapted, abnormal samples seriously deviating from the standard are eliminated by screening effective samples, the difference between the dimension and the baseline is eliminated through standardization, and the classification accuracy is improved. And the interference of noise on the clustering result is reduced.

The application discloses an engineering tire pattern structure with equal groove width, variable pitch, low noise and full wear period, and the like, and relates to the technical field of tires. The application breaks through the technical bottleneck of single performance, inconsistent performance of each pitch, uneven wear, poor structural reliability and low universality in the design of a traditional engineering tire variable pitch, and through integrated innovative design of equal groove width basic design+density differentiation matrix solid convex point+three-order universal pitch proportion, the application realizes the coordinated consideration of low noise, performance consistency, uniform wear and structural reliability, and is suitable for the use requirements of engineering tires in heavy load and multiple working conditions in all directions.

The invention discloses a method for eliminating anisotropy of a laser arc additive manufacturing aluminum alloy component, and belongs to the technical field of metal additive manufacturing. The method comprises the following steps: after or in the process of forming an aluminum alloy component by layer-by-layer deposition through a laser arc additive manufacturing process, firstly, heating the whole component to an optimal plasticity temperature interval of 450-480 DEG C by adopting induction heating, and preserving heat; and then ultrasonic impact treatment is synchronously applied to the component in a heat preservation state. Through the synergistic effect of induction heating and ultrasonic peening, the action depth and efficiency of ultrasonic energy are greatly improved, and internal stress redistribution and grain structure homogenization of the component are achieved, so that anisotropy is effectively eliminated. According to the invention, the action depth can reach 200-300 microns, the ultrasonic energy transfer efficiency is improved by about 40%, and the anisotropy coefficient can be reduced to be close to 1.0. The method is flexible in process, can be used for integral post-treatment and layered treatment, and is suitable for manufacturing components with different sizes and performance requirements.

The application discloses an echo cancellation method based on a room impulse response estimation model and belongs to the technical field of acoustic signal processing, and comprises the following steps: step S1, a room impulse response estimation model is built; step S2, the room impulse response estimation model is trained, evaluated and verified; step S3, double-speech detection is performed; and step S4, according to the detection result, no speech, single-speech echo speech and double-speech echo speech can be obtained, and echo cancellation is performed on the different paths. The application mainly aims at processing echo problems in the network audio call and video conference environment, can weaken and eliminate the echo problems, improves the voice and video call quality, and is suitable for a wide range of applications.

The invention discloses a production method of a hot-rolled steel plate for a high-grade steel pure hydrogen conveying pipeline. The steel plate comprises the following chemical components in percentage by weight: 0.03-0.06% of C, 0.10-0.20% of S i, 1.10-1.40% of Mn, less than or equal to 0.008% of P, less than or equal to 0.001% of S, 0.040-0.050% of Nb, 0.030-0.040% of V, 0.005-0.020% of Ti, 0.20-0.30% of Cr, 0.10-0.20% of N i, 0.020-0.040% of Al, less than or equal to 1.5 ppm of H, less than or equal to 20 ppm of O, less than or equal to 40 ppm of N and the balance of Fe and impurities. And by combining low-temperature heating and rolling of the plate blank, the produced steel plate has high strength and good hydrogen embrittlement resistance, and the requirements of steel for the high-pressure pure hydrogen conveying pipeline are met.

The utility model discloses a kind of constant temperature device of gravure press ink, it is related to printing technical field, including the cooling assembly for communicating ink groove and ink storage tank, cooling assembly is used to carry out cooling treatment to the ink conveyed between both;The cooling assembly includes the cylinder with built-in cooling pipeline, cooling pipeline is used to generate cooling environment atmosphere inside cylinder, cylinder is connected with ink groove, ink storage tank respectively, to make the ink by ink storage tank into cylinder is cooled and is discharged to ink groove with cooling.This utility model connects ink groove and ink storage tank by cooling assembly, realizes the active cooling treatment to ink, this design not only can replace original conveying pipeline to ink groove play the function of feeding, and it has the cooling function to ink, can effectively control ink temperature, prevent viscosity change or printing quality problem caused by ink overheating, to ensure the stability and consistency of printing process.

The utility model relates to the technical field of glue filling, and discloses an adjustable nozzle glue filling device which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a sliding rail, the outer wall of the sliding rail is slidably connected with a sliding block, the upper surface of the sliding block is fixedly connected with a first U-shaped frame, the inner top wall of the first U-shaped frame is fixedly connected with a first electric push rod, and the inner top wall of the first U-shaped frame is fixedly connected with a second electric push rod. The output end of the first electric push rod is fixedly connected with a second U-shaped frame, the inner wall of the second U-shaped frame is fixedly connected with a first sliding column, the outer wall of the first sliding column is slidably connected with a sliding block, and the outer wall of the sliding block is fixedly connected with a fixing block. According to the utility model, the sliding block moves to drive the distance between the nozzle heads to change through the fixed block, so that the effect of adjusting the distance between the nozzle heads is achieved, the requirements of different products are met, the production of various products is met, the change of the products can be quickly adapted, the adjusting time and cost are reduced, and the flexibility and universality of a production line are improved; and enterprises can deal with diversified market demands.

The invention discloses a device and method for maintaining a load position unchanged, the device comprises lower telescopic units, a box body, a rope, a side edge steering unit, a center switching mechanism, an upper telescopic unit and a fixing clamp, the fixing clamp used for clamping the rope is installed in the middle of the bottom end of the box body, and a plurality of lower telescopic units are installed at the bottom end of the box body; a plurality of lower telescopic units are installed on the top of the box body and distributed in an array mode, a center switching mechanism is installed in the middle of the box body, a plurality of upper telescopic units are installed on the top of the box body and distributed in an array mode, and side edge steering units are installed on the two sides of the top of the box body. The device is suitable for the transmission balance test on the single crystal furnace, and is also suitable for occasions where the upper end is continuously lifted, the load weight is increased and the position is not changed, the load does not need to be designed to be equal to a crystal silicon rod in length or equal to a furnace body in diameter, and space conflicts between the load and the furnace body and between the load and an auxiliary chamber are avoided.

The invention relates to the technical field of surface plating and vacuum film deposition, and discloses a turbine rotating blade surface hot film coating lead structure and a preparation method. According to the method, a traditional wire pasting mode is abandoned, a magnetron sputtering technology is adopted to directly deposit and form a film coating lead on an electric insulation layer after blade base body cleaning and activating treatment, and the tail end of the end face of a tenon continues to be thickened and deposited to form an integrated end face circuit and a contact. The film-coated lead continuously extends from a hot film sensor pin, crosses a blade pneumatic surface, a blade root and a rotor-stator blade sealing structure, ends at the tail end of a tenon end face instead of a mortise and is finally welded with a signal wire, and the signal wire is led out to an external shaft end through a wheel disc vent hole. The technical problems that a traditional lead is prone to breakage, degumming and the like under high-speed rotation are solved. The thickness of the coated lead is only 2-3 microns, the adhesive force is strong, the reliability is high, the preparation process is standardized, and the consistency and repeatability of experimental data are ensured.

The utility model discloses a kind of ultra-high purity composite structure stainless steel pipes for semiconductor, it is related to semiconductor material conveying technical field, including outer layer base pipe and inner layer cladding pipe arranged in outer layer base pipe, vacuum insulation layer is arranged between outer layer base pipe and inner layer cladding pipe, and the outside of outer layer base pipe is provided with protective layer, and the outside of outer layer base pipe is provided with suction hole. The ultra-high purity composite structure stainless steel pipe for semiconductor, the performance and economy are considered, only in the inner layer using expensive VIM+VAR grade material with medium contact, thickness is thinner;Outer layer uses ordinary 316L material pressure, substantially reduces raw material cost, and the cost performance is extremely high;Double protection ultra-high purity: vacuum insulation layer effectively prevents the impurities in outer layer base pipe from migrating to inner layer flow passage by grain boundary diffusion and other ways, can also isolate the pollution of external environment to inner layer flow passage, and reliability is far more than single material pipe.

This invention discloses a demand-oriented dyeing and printing strategy guidance system and method, belonging to the field of dyeing and printing engineering technology. The system includes: an environmental constraint acquisition module for acquiring the application environment constraint characteristics of the dyed and printed materials; a process analysis module for obtaining process difference parameters and their distribution; a constraint allocation module for obtaining a constraint map; and a dyeing and printing guidance module for providing guidance using dyeing and printing strategies. This application solves the technical problem in existing dyeing and printing engineering technologies where dyeing and printing design cannot accurately allocate process parameters according to the application environment, leading to a mismatch between the performance of dyed and printed materials and actual needs. It achieves the technical effect of generating accurate dyeing and printing strategies through constraint maps in dyeing and printing engineering technologies, ensuring that the performance of dyed and printed materials matches the needs of the application environment and improving resource utilization efficiency.

The utility model relates to injection molding machine technical field, concretely relates to a raw material mixing hopper for plastic injection molding machine, it includes processing cylinder, is provided with mixing stirring subassembly in processing cylinder, is provided with anti -blocking unloading component at processing cylinder top, is provided with controllable discharge capacity subassembly at processing cylinder bottom, the utility model discloses a mixing stirring subassembly is set up in processing cylinder, when raw material enters processing cylinder, first, several cutting blades in the uppermost region of the pivot scatter and break the raw material that enters first, then several oblique rectangular plates promote the further mixing of raw material in processing cylinder, finally, the spiral blade stirs and extrudes the raw material close to the bottom export, thereby can carry out all -round, multilevel stirring mixing to multiple raw materials, greatly improves the uniformity of raw material mixing, makes the quality of injection moulded product more stable, and the performance is more consistent.

This utility model discloses a hydrogen-rich water device with adjustable hydrogen-water mixing, including a pure water tank, a pure water circulation pump, an electrolyzer, a gas-water separator, and a buffer tank. The electrolyzer and gas-water separator are equipped with an anode, a cathode, and a proton exchange membrane. A motor mounted on the buffer tank drives a high-pressure hydrogen dissolving rod to move left and right. Components such as the insertion plate and assembly plate have specific connections and are equipped with sealing sleeves to prevent interference. This device has dual channels for electrolyzing water and drinking water, allowing the human body to drink different water qualities through a series of processes, improving its practicality. Furthermore, the reciprocating motion of the high-pressure hydrogen dissolving rod driven by the motor increases the contact area between hydrogen and water, forming a flow path and vortex, improving the hydrogen dissolution speed and efficiency, resulting in a more uniform hydrogen distribution, reducing concentration gradients, and improving the quality of the hydrogen-rich water and the overall quality of the device.

The invention relates to the technical field of guide wheel ceramic plating, in particular to bus bar traction guide wheel ceramic plating equipment which comprises a base, and a vacuum tank communicated with a vacuum pump set is fixedly connected to the surface of the base. According to the bus bar traction guide wheel ceramic plating equipment, an operator only needs to sleeve the guide wheels into the placing rods in sequence, and the dead weight of the guide wheels during falling can trigger a pneumatic chain reaction. The first guide wheel presses the lowermost limiting block to drive the pressed pneumatic piston rod, compressed gas of the first guide wheel pushes the upper-stage ejection pneumatic piston rod through the pipeline, and therefore the upper side edge limiting mechanism is pushed out of the inner groove and exactly abuts against the upper surface of the guide wheel to form limiting. And the guide wheels are automatically and repeatedly placed along with successive placement of the guide wheels, and finally all the guide wheels are automatically separated and axially positioned by the side edge limiting mechanisms which extend out in pairs. Rapid batch feeding of multiple workpieces is achieved, it is ensured that constant isolation space exists between the workpieces, and preconditions are created for subsequent uniform coating.

The invention belongs to the technical field of auxiliary winding, and particularly relates to an auxiliary winding device for adhesive tape production, which comprises a coating box, the coating box is fixedly mounted on a base in contact with the ground, a coating roller for coating an adhesive on an adhesive tape is transversely arranged in the middle of the coating box, and the two sides of the coating roller are connected with the coating box through a regulation and control part; by means of the automatic tightening assembly, the stable tightness of the adhesive tape can be kept, the tension of the adhesive tape after gluing and before pressing can be inducted and adjusted in real time, the abutting rolling rod can press the adhesive tape when the adhesive tape is wound and wound, the adhesive tape is prevented from loosening when wound on the winding drum, and the adhesive tape is prevented from being loosened along with gradual increase of the thickness when the adhesive tape is wound. When the adhesive tape is wound, the abutting rolling rod moves upwards, loosening and deviation of the adhesive tape in the winding process are effectively eradicated, and meanwhile during winding motion, the driving part synchronously drives the drying unit to smear the adhesive tape with the adhesive and then blow-dry the adhesive tape.

This utility model belongs to the field of magnetization technology, and particularly relates to an automatic magnetization device for arc-shaped magnets. Addressing the problems of existing devices lacking automatic sorting of magnets with incorrect postures and cumbersome width adjustment operations, the following solution is proposed: It includes a base, a vibrating feeder, a magnetization guide rail, a magnetization box, a conveyor box, a pushing component, a return component, and a width adjustment mechanism. The conveyor box contains a belt conveyor I. The return component includes a return box and a belt conveyor II. The pushing component includes a cylinder I, a pushing block, and a photoelectric sensor. The return component also includes a cylinder II, a rejection block, and an industrial camera. The width adjustment mechanism achieves synchronous movement of two limiting plates through a motor, a bevel gear set, a threaded rod, and a connecting plate. This utility model can automatically identify and return magnets with incorrect postures, reducing manual intervention. Furthermore, the synchronous adjustment mechanism allows for rapid adaptation to various magnet specifications, improving magnetization efficiency and equipment versatility.

A wire penetrating jig for a high-voltage fuse comprises a wire penetrating body, the wire penetrating body is sequentially divided into an upper wire penetrating seat and a lower wire penetrating seat from top to bottom, the upper wire penetrating seat and the lower wire penetrating seat are in mirror symmetry, the upper wire penetrating seat comprises a fuse wire positioning part and a limiting step, and the limiting step is arranged on the fuse wire positioning part. A plurality of fuse positioning grooves which are transversely arranged at intervals and are used for fixing fuses are formed in the fuse positioning part, the two ends of each fuse positioning groove are open, the limiting steps are arranged on the two sides of the fuse positioning part in a mirror symmetry mode, and sawtooth line parts used for fixing copper pipes are arranged on the limiting steps. According to the utility model, by arranging the fuse wire positioning groove for fixing the fuse wire and the limiting step for limiting the red copper pipe, the positions of the fuse wire and the red copper pipe are prevented from deviating, and the stability is high, so that the effective lengths of the fuse wires of all products are equal and consistent, and the product performance is consistent; and the sawtooth line part is arranged on the limiting step, so that the fuse wire and the red copper tube are tightly attached, the contact is good, the length is equal, and the close attachment is realized, thereby ensuring the consistent resistance of each product, and improving the qualified rate of the product.

The invention provides equipment for surface treatment of electronic glass fibers and a treatment process. The equipment comprises a coating roller, the surface of the coating roller is provided with concave-convex structures which are distributed in a regular array mode, at least one dimension of each concave-convex structure is in the nanometer dimension to the micrometer dimension, and the concave-convex structures are configured to improve the spreading uniformity of an impregnating compound on the surface of the fiber when the electronic glass fiber is coated by the coating roller. According to the equipment and the process, the surface treatment quality and the production efficiency of the electronic glass fibers are improved, and the production cost is reduced.

The present application relates to non-ferrous metal processing technical field, specifically provide a kind of aluminium alloy sheet hot cold die composite heat treatment method.The aluminium alloy sheet hot cold die composite heat treatment method provided by the present application includes the following steps:S1.workpiece is placed in quenching device, and the workpiece is closed and clamped using upper and lower split heating die, is kept at 400-550 DEG C for 5-20min to carry out solid solution treatment;S2.the workpiece after solid solution treatment is transferred to cooling station, and the workpiece after solid solution treatment is closed and clamped using upper and lower split cooling die to carry out quenching treatment, and finished product is obtained;Wherein, the temperature of the upper and lower cooling die is controlled at 15-25 DEG C.The present application is by using the continuous processing mode of upper and lower split hot and cold die combination, so that the effective support of die is obtained in the whole process of solid solution and quenching for sheet, so that the deficiency of traditional air cushion furnace process in plate shape control and performance uniformity is successfully overcome, and then high-quality aluminium alloy sheet with flat plate shape and uniform structure can be stably prepared.

This invention discloses an embedded metal-based ceramic membrane and its preparation method. The membrane uses a continuous metal matrix as its main framework. During solid-state sintering, the metal particles undergo plastic deformation at their contact points, forming sintering necks. The ceramic powder is in a discontinuous, discrete state. After being uniformly dispersed by powder adsorption and cold isostatic pressing, it is embedded and locked within the gaps in the metal framework. This product has a metal membrane structure as its main component, offering high filtration accuracy and uniform distribution. The outer surface of the membrane has a continuous, smooth, and clean metal phase that can be directly welded. It exhibits low sintering shrinkage, good dimensional stability, excellent intrinsic hydrophilicity, and superior fluid permeability. The preparation process is simple and controllable.

The invention relates to the technical field of release film preparation, in particular to a release film for a heat-conducting silica gel sheet and a preparation method of the release film. According to the technical scheme, the film comprises a high-temperature-resistant base material layer, a transition layer and a release layer which are sequentially arranged from bottom to top; the high-temperature-resistant base material layer is prepared from the following components in parts by mass: 60 to 80 parts of polyimide, 5 to 15 parts of nano boron nitride particles and 0.5 to 2 parts of antioxidant; the transition layer comprises the following components in parts by mass: 2-5 parts of a silane coupling agent and 3-8 parts of tackifying resin; the release layer is prepared from the following components in parts by mass: 10 to 20 parts of fluorosilicone release agent, 2 to 6 parts of temperature-sensitive polymer and 1 to 3 parts of antistatic agent. The heat-conducting silica gel sheet has excellent high-temperature resistance, and the preparation raw materials are easy to obtain, so that the production cost and difficulty of an enterprise are reduced, the release force is stable, the problem of abnormal adhesion is avoided, and the yield and the product quality of the heat-conducting silica gel sheet are greatly improved.

The invention discloses an efficient recycling control system for fine polishing liquid of a polishing machine, and relates to the technical field of precise polishing processes, the efficient recycling control system comprises a polishing liquid collecting box, a temporary storage tank, a detection unit and a control unit, a liquid outlet of the fine polishing machine is connected with the polishing liquid collecting box through a separator, and the polishing liquid collecting box is connected with the temporary storage tank through a first-stage conveying pipeline; the temporary storage tank is connected with the medium polishing machine liquid storage tank through a second-stage conveying pipeline, and pump assemblies are arranged on the first-stage conveying pipeline and the second-stage conveying pipeline; a temperature regulation and control unit is arranged on the temporary storage tank, a filter is further arranged on the secondary conveying pipeline, detection units used for detecting the liquid level are arranged in the polishing solution collecting box and the temporary storage tank, and the control unit is electrically connected with the temperature regulation and control unit, the detection units and the pump assembly. The high-efficiency recycling control system for the fine polishing liquid of the polishing machine solves the problems of unbalanced concentration and viscosity change of the recycled liquid in the prior art, ensures that the performance of the recycled liquid is basically consistent with that of the new liquid, and ensures the stability of the polishing effect.