108 results about "Single step" patented technology

The invention discloses a preparation method and equipment of three-chamber eccentric parallel structure nanofibers. The preparation method comprises the following steps: simultaneously carrying out high-voltage electrostatic spinning on three spinning solutions; the two spinning solutions are respectively divided into microfluids to be led out through an array formed by two sets of series metal capillary tubes; the other spinning solution is divided into microfluids to be led out through a plurality of bottom through holes of the insulating container; the first series of metal capillary tubes are inserted into the second series of metal capillary tubes to form a series of metal capillary eccentric sleeves; the series of metal capillary eccentric sleeves penetrate through the insulating container and extend out of one side of the interior of the bottom through hole to form a combined eccentric outlet of three strands of spinning solutions; three spinning solutions are guided into a high-voltage electrostatic field in an eccentric parallel mode through the combined eccentric outlet, and the three-chamber eccentric parallel structure nanofiber is formed through single-step direct stretching. According to the method, the capability of preparing the three-chamber eccentric parallel structure characteristic nanofiber with a complete structure in a single-step, batch and large-scale manner is endowed.

The invention discloses a program debugging method, a debugger and computing equipment. The debugger determines a next program code entering in a single step as a first glue code, the first glue code is a first-layer code in glue codes between a first function and a second function, the first function calls the second function, and the first function and the second function are obtained by compiling through different compiling languages; the debugger determines that the second function is a breakpoint of the program; and the debugger continuously executes the program to the breakpoint. For the operation steps of a developer, after entering the first function, the developer can reach the second function, and because the glue code between the first function and the second function is automatically operated in the program, the developer does not sense the operation process of the glue code and does not need to manually operate each function for operating the glue code, so that the operation efficiency is improved. And the program debugging efficiency is improved.

The application discloses a variable-volume synthetic column and a synthetic system using the same. The synthetic column comprises a hollow column body, a fixed seat, an upper end cover and a hollow connecting column are arranged on the upper part of the column body, the bottom end of the hollow connecting column extends into the inside of the column body and is connected with a piston, and a lower plug is arranged on the lower end of the column body; wherein the piston is penetrated by a vertical first through hole, the lower plug is penetrated by a vertical second through hole, a hydraulic cavity is formed between the upper end cover and the piston, and a bottom outlet is arranged on the lower end of the lower plug. The variable-volume synthetic column can make the total amount of monomers and activators in a single step cycle not less than the sum of the pipeline and the residual volume of the column, can make the single step cycle be realized through one-step coupling, thereby reducing the synthesis time, improving the synthesis efficiency, and ensuring the stability of the quality of the synthetic product.

The invention discloses a preparation method of a self-supporting silicon-carbon electrode plate. The preparation method comprises the following steps of expanded graphite preparation, nitrogen doping, pore forming, silicon compounding and compression molding. The innovation of the invention is that the integrated pole piece with a three-dimensional elastic conductive network is constructed through the porous design of the nitrogen-doped expanded graphite matrix and the in-situ silicon coating and mould pressing integrated forming process. By doping the nitrogen element in the expanded graphite, the wettability of the pole piece to an electrolyte can be improved, pores of the expanded graphite can be used as transmission channels of ions between graphite sheet layers, and then by utilizing a microscopic two-dimensional sheet structure of the expanded graphite and direct molding through mold pressing, efficient compounding of graphite and silicon is realized, and preparation of the negative pole piece is completed in one step. The breakthrough of the thickness of the pole piece reaches the magnitude of 1 mm (far exceeding the level of tens of microns of a traditional current collector), and meanwhile, the pole piece has high rate performance and excellent cycle stability. Wherein the three-dimensional structure maintains the integrity of the electrode through a mechanical interlocking effect, and the structure has certain elasticity, so that the structure of the material is kept stable in a repeated expansion / contraction process caused by charging and discharging, and the capacity retention ratio is remarkably improved.

Surgical constructs, assemblies, kits and methods of tissue fixation are disclosed. Soft tissue augmentation is conducted with a simple device that allows a surgeon to augment poor tissue in a most expedient and straightforward manner. The device includes an implant in the form of a molded part which has one or more barbs that are angled generally in a retrograde fashion. The implant is affixed to the graft desired to be augmented onto patient's tissue. The surgeon needs only “hook” the distal portion of the graft / implant device into patient's tissue and pull to fix the graft in contact.

Pattern transfer sheets and methods are provided, providing multi-layer paste stack lines that are printed on a receiving substrate in a single illumination step. The paste is filled layer-by-layer, possibly having different materials in different layers, with layer thickness controlled by parameters of the filling elements, e.g., in case of blades, the pressure, angle, velocity and flexibility (material) of the blade. Specifically, a bottom layer of the stack may be configured to interface the receiving substrate while one or more top layers may be configured to optimize the quality of the printed features. For example, bottom layers may comprise to bind to the substrate, to modify the substrate (e.g., forming selective emitter (SE) therein) and / or provide a barrier from top layer(s) which may not be compatible with the substrate (e.g., copper on silicon). Releasing material may be used to support the single step release of the stack line.

The invention provides a preparation method of a supercritical blank mold foaming product, and belongs to the technical field of high polymer material processing. By using the special mold, the raw materials can be subjected to one-time foaming molding; foaming and rapid cooling are carried out in the mold, the shrinkage rate is controlled through directional cooling of the cold runner, and the accuracy of the size of a product, the high yield of the product and high-rate foaming of the product are ensured. Meanwhile, the technical scheme provided by the invention can solve the problems that in the prior art, the process period is long, the production efficiency is low, the equipment investment cost is high, the product size stability is poor, the melt internal stress is difficult to release, and the product yield is influenced.

The invention provides a preparation method and application of oversized metal ferrocyanide, and relates to the technical field of nonferrous metallurgy. Comprising the following steps: preparing a DMF aqueous solution, and dividing the DMF aqueous solution into two equal parts which are respectively marked as a solution A and a solution B; soluble metal salt is added into the solution A, and the pH value is controlled to be 3-8; ferrocyanide is added into the solution B, and the pH value is controlled to be 3-8; dropwise adding the solution B into the solution A, and reacting to obtain a solution C; and filtering and drying the solution C obtained in the step 4 to obtain the metal ferrocyanide adsorbent. According to the method, N, N-dimethylformamide (DMF) is added as a surfactant in the process of preparing a metal ferrocyanide adsorbent by a conventional chemical precipitation method, and ferrocyanide is synthesized in one step. The oversized metal ferrocyanide adsorbent can be obtained by regulating and controlling the adding proportion of the ferrocyanide and water, and has a better adsorption effect.

A rolling bearing cage has at least a first end face with at least one elevation. The at least one elevation differs from an individual step which has a right angle in one section. In other words, the elevation has a shape different than a single step with a right angle.

This application relates to the field of liquid manipulation, disclosing a microfluidic chip and a liquid manipulation method, including a first electrode plate and a second electrode plate, with a liquid flow channel formed between the first and second electrode plates. The liquid flow channel includes a storage region, a distribution region, and a connecting region, with the connecting region located between the storage region and the distribution region. The height of the storage region is greater than the height of the distribution region. The first electrode plate includes an electrode layer, and the second electrode plate includes a driving electrode layer. The driving electrode layer includes a first electrode, a second electrode, and a third electrode, corresponding sequentially to the storage region, the connecting region, and the distribution region. The third electrode includes sub-electrodes arranged in an array, with at least two rows and two columns of sub-electrodes. The two-stage structural design effectively reduces costs; the mother liquor can be separated into sub-droplets in a single step, eliminating the need for intermediate droplet transitions, resulting in good stability and short distribution manipulation time. The third electrode includes multiple sub-electrodes, making it easier for the mother liquor to enter the distribution region and break apart to form sub-droplets, and allowing for flexible control of the sub-droplet volume.

An improved stone tea tray comprises a tea tray main body, the tea tray main body comprises a tea tray plate and a tea tray frame body, an opening part with a T-shaped section is formed in the middle of the tea tray frame body, the lower portion, with the large inner diameter, of the opening part serves as a tea tray plate installation groove, and the tea tray plate only needs to be installed from the bottom face of the tea tray plate installation groove when installed. Therefore, the stone tea tray provided by the utility model is suitable for an integrated or spliced tea tray frame body, and especially the integrated tea tray frame body can improve the aesthetic property and the grade of the stone tea tray. Moreover, when the spliced tea tray frame body is produced, the spliced tea tray frame body can be firstly spliced, then is polished and ground by primary machining, and is not required to be ground and polished by secondary machining after the tea tray plate is mounted by slotting, so that the production process is saved, and the production cost is reduced. In addition, the limiting protruding edges corresponding to the side faces of the upper opening grooves can limit the tea tray plate and cover the bonding gap between the tea tray plate and the tea tray frame body, and the attractiveness of the stone tea tray is further improved.

This invention discloses a ternary precursor with vertically stacked particles in a single step, its preparation method, and its application, belonging to the field of battery material technology. The preparation of the ternary precursor includes: Step 1: Adding a first mixed metal salt solution, a precipitant, and a complexing agent to a base solution, reacting for 0.5h~20h to obtain crystal nuclei; Step 2: Increasing the rotation speed and ammonia concentration, while maintaining other conditions as in Step 1, continuing the reaction for 4h~12h to obtain crystals; Step 3: Replacing the first mixed metal salt solution with a second mixed metal salt solution, while maintaining other conditions as in Step 2, continuing the reaction until particles of a predetermined target particle size are obtained. This method is simple, easy to operate, and can obtain precursor materials with vertically stacked particles in a single step. This precursor helps shorten the lithium-ion transport path, improves the rate performance of the battery, and has good pressure resistance, which can reduce microcracks caused by mechanical forces and improve the battery's lifespan.

The utility model relates to the field of water control equipment, and discloses a multi-module water control device convenient to overhaul, which comprises a shell and a mounting seat, the mounting seat is arranged on the rear side of the shell, a connecting pipe is arranged at the lower part of the shell, and a limiting component is arranged on the rear side of the shell; the limiting assembly comprises an insertion plate, the insertion plate is fixedly installed on the rear side of the shell through screws, an insertion groove is formed in the inner wall of the front side of the installation base and matched with the insertion plate in an inserted mode, and an operation rod is slidably connected to the inner wall of the insertion plate. According to the utility model, the spring is elastically connected with the limiting piece, when the inserting plate is inserted into the inserting groove, the limiting piece is automatically clamped into the limiting groove under the action of the spring force, manual fixation is not needed, rapid installation and automatic locking are realized, and when the operating rod is pushed, the inclined surface of the operating rod is matched with the inclined surface of the sliding groove, and the limiting piece is driven to compress the spring and is separated from the limiting groove; unlocking is completed through one-step operation, and the maintenance efficiency is improved.

The present invention provides a continuous single step, solvent free and additive free process for the synthesis of Paracetamol with more than 90% conversion of the solid substrates and at least 94-97% selectivity towards paracetamol as product, and that to without the need of any solvent in a screw reactor.

According to the normal-temperature and normal-pressure dyeable polyester fiber and chinlon composite yarn one-bath-process dyeing method, normal-temperature and normal-pressure dyeable polyester fibers are adopted to replace conventional polyester, synchronous one-bath-process dyeing of polyester and chinlon composite yarn under the normal-pressure condition is achieved, and the technical problem caused by the difference of the dyeing characteristics of two kinds of fibers in a traditional technology is solved. A traditional multi-step two-bath method is integrated into one step, so that the technological process is shortened by more than 50%, and the production efficiency is greatly improved. High-temperature and high-pressure equipment is not needed, and the replacement frequency of the dye liquor is reduced, so that the steam energy consumption is reduced by about 40%, the water consumption and the wastewater discharge amount are reduced by about 35%, and the green manufacturing requirement is met. The mild dyeing conditions of the process effectively protect the mechanical properties of the polyamide fibers, so that the strength retention rate of the polyamide fibers is increased by 15% or above, and excellent leveling property and color fastness are ensured. The operability and reproducibility of the process are also enhanced by the single-bath process, and a reliable guarantee is provided for large-scale stable production.

The present invention discloses a high-precision ring gear machining process. This process utilizes a warm extrusion process to complete the machining of the ring gear's end face, outer diameter, and inner bore in a single step. The specific steps include: 1) manufacturing the machined part; 2) warm extrusion; 3) normalizing; 4) finishing; 5) high-frequency quenching; and 6) roundness testing. This method provides a high-precision ring gear machining process that utilizes extrusion instead of traditional methods. This process requires only a single finishing step, significantly improving the ring gear's surface quality, significantly saving materials, and increasing production efficiency, thereby reducing product production costs.

The present application relates to pressure pipeline air tightness detection technical field, and disclose a kind of cold storage refrigeration pipeline prefabrication welding and air tightness test method;For solving the problem that stable, repeatable, traceable qualification and threshold quantization of small leakage cannot be achieved in traditional method;The method, first determine boundary data unit and valve position isolation check, access dry nitrogen, reference cavity, double pressure link and near and far end temperature measuring point, initial parameter record;Pipe link and valve position switching self-check are completed under the working condition of reference cavity;Precharge and target pressure are staged inflation, and pressure temperature threshold value is gated to stabilize voltage;Main pressure maintaining period synchronously obtains the pressure temperature data of section to be detected and reference cavity, and periodically rechecks cross verification drift, triggers condition according to partition single valve single step isolation recheck, obtains small leakage stable repeatable traceable determination conclusion.

The invention discloses a high-frequency airtight microstrip waveguide power conversion device, which is characterized in that a whole multi-layer ceramic is connected with a metal carrier with a cavity, the integrated structure can realize airtightness at one time, and compared with a sapphire waveguide sealing window structure in the prior art, the high-frequency airtight microstrip waveguide power conversion device is more convenient in structure and simpler in process flow. On the basis of a copper-based LTCC material, the dielectric loss is relatively small, and the dielectric loss is reduced by adopting a multilayer dielectric double-sided slotting mode, so that relatively low insertion loss is realized, local airtightness of an active device is realized, the size of the whole device is reduced, the device is more suitable for being used in a millimeter wave circuit, and the reliability of the device is improved.

The present invention provides a joint scheduling method, system, storage medium and computer for a multi-step ship lock, the method comprising: if each ship arrives at the first lock area of ​​the multi-step ship lock, then each ship is marked to enter the waiting lock state, and the release volume of all the locks in the multi-step ship lock is obtained, and whether the multi-step ship lock needs to be jointly scheduled is determined according to the release volume; if the multi-step ship lock needs to be jointly scheduled, the joint scheduling time difference of the first lock in the multi-step ship lock is calculated according to the number of locks in the multi-step ship lock; the release scheduling volume of the first lock is calculated according to the joint scheduling time difference of the first lock, and all the locks in the multi-step ship lock are virtually shifted according to the release scheduling volume of the first lock, so as to realize the joint scheduling of the multi-step ship lock. The present invention changes the registration scheduling of a single step into a unified registration scheduling of multiple steps, ensures the smooth navigation of ships and reduces waiting time, and at the same time ensures the smooth flow of waterways within the steps.

A method of copper electroplating in the manufacture of printed circuit boards. The method is used for filling through-holes and micro-vias with copper. The method includes the steps of: (1) preparing an electronic substrate to receive copper electroplating thereon; (2) forming at least one of one or more through-holes and / or one or more micro-vias in the electronic substrate; and (3) electroplating copper in the at least one or more through-holes and / or one or more blind micro-vias by contacting the electronic substrate with an acid copper electrolyte. The acid copper electrolyte is used to plate the one or more through-holes and / or the one or more blind micro-vias. A first pulse reverse plating waveform sequence is used to create a copper bridge in the center of the through-holes followed by direct plating until metallization is complete.

The present application relates to a kind of open pit anticline area inclined base dump method, comprising the following steps: dividing the end zone of stope into accelerated propulsion area, when accelerated propulsion area is forwardly propelled distance D, rough surface blasting is carried out to the exposed inclined base;End slope and inclined base meet at the intersection to start with the strike angle θ End slope pseudo-inclined dump, until with inclined base is connected, forms dump step;Stope propulsion distance is D', completes a single step dump disposal;The above steps 1~3 are recycled, after forming a single step dump step, continue to advance along the direction of inclination of inclined base and pseudo-inclined dump direction.This application does not occupy other land, forms dump in anticline area, which is convenient for discharge of stripping material, saves disposal cost, through end slope pseudo-inclined dump method, uses the support of end slope and inclined base to dump, which can improve the stability of inclined base dump, prevent coal seam slope surface from sliding.

This disclosure relates to a separator. The separator includes an electrode adhesive portion having a high binder content and formed on the surface of the separator to provide increased adhesion to the electrodes and improved processability during battery manufacturing. Therefore, the separator and electrodes are in close contact with each other to prevent gap formation, thereby providing an effect of improved resistive characteristics. In addition, the separator includes an inorganic coating disposed on the surface of a porous substrate, wherein the inorganic coating has a porous structure derived from the interstitial volume between inorganic particles, and thus the separator has appropriate porosity and sufficient electrolyte retention. Furthermore, because the separator includes an inorganic coating on the surface of the porous substrate, the separator ensures heat resistance and prevents shrinkage even when the internal temperature of the battery rises. This disclosure also relates to a method of manufacturing a separator. The method includes forming an inorganic coating and an electrode adhesive portion disposed on the inorganic coating in a single step by using the density of the inorganic particles and the density of the binder resin particles, and therefore has advantages in terms of ease of processing.

This invention relates to a Ti-Fe-Ce-Mn-Zr-Al-Co based hydrogen storage alloy and its preparation method, belonging to the technical field of hydrogen storage alloy materials. It solves at least one of the problems of high activation conditions, long activation cycles, and poor hydrogen absorption / desorption performance in existing TiFe hydrogen storage alloys. This invention provides a Ti-Fe-Ce-Mn-Zr-Al-Co based hydrogen storage alloy, characterized in that: the alloy's specific composition is Ti... 1.05 Ce 0.05 Fe 1.15‑x‑y‑z‑m Mn x Zr y Al z Co m Where x, y, z, and m are atomic ratios, and 0.1≤x≤0.25, 0.05≤y≤0.2, 0.02≤z≤0.1, 0.02≤m≤0.1. The hydrogen storage alloy exhibits excellent activation and hydrogen absorption / desorption properties, with a hydrogen storage capacity ≥1.70 wt.%, a hydrogen absorption plateau pressure ≥0.41 MPa, and a hydrogen desorption plateau pressure ≥0.31 MPa. It can be activated in a single step at 30°C and an initial hydrogen pressure of 3 MPa, making it suitable for widespread application as a solid-state hydrogen storage material in hydrogen fuel cells and other scenarios.

The invention provides a method for forming an assembly from ferroferric oxide nano particles modified by a multi-carboxyl ligand. The preparation method comprises the following steps: firstly preparing ferroferric oxide nanoparticles with carboxyl groups on the surfaces, and then forming an assembly by utilizing the ferroferric oxide nanoparticles with carboxyl groups on the surfaces under the stimulation of a KMnO4 reagent with relatively strong oxidizing property at a certain temperature. The one-step method for preparing the assembly has the advantages that the operation is simple, convenient and rapid, the assembly process can be efficiently completed in a single step, the preparation period is remarkably shortened, pollution and errors possibly caused by multi-step operation are reduced, the uniformity and stability of products are favorably kept, and the method is very suitable for large-scale production.

The present disclosure provides methods and systems for classifying and recovering certain solids from a stream (e.g., a liquid waste stream). The method includes classifying with at least one solid bowl centrifuge, followed by a value-adding process. The appreciation process may be a flotation process that may include a single step or a two-step process.

The invention belongs to the technical field of in-situ leaching uranium mining, and particularly relates to a well washing sleeve sealing device. According to the device, through the single step of rotating the push rod, the radial expansion sealing of the rubber sleeve and the switching of the valve element flow channel can be synchronously completed, the sealing function and the flow channel control function are integrated into the single device, the operation process is simplified, and the operation efficiency is improved. The rubber sleeve generates radial expansion under axial extrusion and can be tightly attached to the irregular well wall, elastic sealing is formed, and adaptability is high. The bearing assembly ensures smooth rotation of the push rod, friction is reduced, and sealing failure caused by torsion stress is avoided. The valve element adopts the double-channel design of a lateral hole and a bottom hole, accurate alignment or closing is achieved through driving of the push rod, it is ensured that well washing media are rapidly converted into lateral circulation after sealing is established, well bottom blockage is avoided, and the well washing effect is improved.

The present invention relates to the technical field of automatic control devices for a series of single steps when grinding a workpiece, and specifically to an automatic polishing control method, device and system applied to aluminum alloy die castings, including: obtaining the polishing position coordinates and vibration data of each aluminum alloy die casting at each stage of the polishing process at each moment, determining the difference of the vibration data at each moment, and then determining the degree of influence of the historical stage at the current moment, thereby determining the abnormality of the vibration data at the current moment, thereby obtaining the reference adjustment coefficient at the current moment, which is used as the input of a PID controller and outputs a control instruction. The present invention determines the reference adjustment coefficient by analyzing the vibration of the aluminum alloy die casting during the automatic polishing process to improve the effect of polishing control.

The embodiment of the invention provides a running time statistical method and device, equipment, a storage medium and a program product, and relates to the field of semiconductor manufacturing, precision machining or automation. The method comprises the following steps: acquiring preset step durations corresponding to steps of a target process, and accumulating all the preset step durations to obtain a preset total duration; when it is detected that the pause event occurs in the step, pause starting time and pause recovery time corresponding to the pause event are obtained; obtaining a pause interval according to the pause starting time and the pause recovery time, and accumulating the pause interval to an accumulative pause calculation unit to obtain an accumulative pause duration; and according to the preset step duration, the starting time and the pause interval corresponding to the steps, obtaining the step operation duration of the steps. According to the method, the timing precision is improved, and the time obtained through statistics is consistent with the actual situation. And the single-step operated time, the remaining time and the total remaining time of the formula can be output at the same time, so that the process controllability can be improved.

The present disclosure provides, for example, a method that can produce a fluorolactone compound from hexafluoropropylene oxide or the like in a single step. The present disclosure relates to a method for producing a compound represented by formula (1):wherein two R1 are the same and each is a fluorine atom or a fluoroalkyl group,the method comprising step A of reacting a compound represented by formula (2):wherein R1 is as defined above, with a compound (3) represented by formula (3-1) or the like:wherein R31, R32, and R33 are the same or different and each is a hydrogen atom or a C1-10 alkyl group, or two of them are optionally linked to each other to form a ring optionally having one or more substituents,in the presence of a fluorine compound (4) represented by formula (4-1) or the like:MHnFm  (4-1)wherein M is a metal atom, n is 0 or 1, and the sum of the valence number of M and n is m, andan organic solvent, provided that the compound represented by formula (3) is excluded from the organic solvent.

To provide a prefabricated scaffolding that can be easily installed while ensuring safety. [Solution] The prefabricated scaffolding 1 according to this embodiment comprises a fixing member 3 that is fixed to electrical equipment, and a plurality of portable scaffolding members 4, each having a single step 43 and varying heights. The plurality of scaffolding members 4 are arranged so that the relatively taller scaffolding members 4 are connected to the fixing member 3, and the relatively lower scaffolding members 4 are sequentially connected to the relatively taller scaffolding members 4, thereby forming a staircase-like scaffolding.