12results about How to "Clean interface" patented technology

An integrated cleaning and liquid supply device and online cleaning method for polyurethane polishing pads are disclosed. The device includes a base, a rotating seat, a swing arm, an independent liquid supply pipeline system and cleaning pipeline, a high-pressure nozzle array, and a positioning sensor assembly. During the polishing stage, polishing liquid is dripped through the liquid supply outlet. During the cleaning stage, the swing arm moves centripetally to a preset position aligned with the center of the polishing pad. The positioning sensor triggers a high-pressure pump, causing pure water to be sprayed as an atomized jet along the diameter of the pad surface through the high-pressure nozzle array. Simultaneously, the polishing pad rotates at a low speed, utilizing the synergistic effect of centrifugal force and high-pressure water flow to thoroughly remove residual contaminants within the micropores of the polyurethane. This invention integrates liquid supply and deep cleaning functions into the same motion mechanism, eliminating the need for machine shutdown or manual intervention. It offers advantages such as non-contact, non-destructive, thorough cleaning, and high automation, extending the life of the polishing pad and improving the stability of the CMP process.

The application belongs to the technical field of copper-based diamond composite materials, and particularly relates to a diamond copper-based composite material and a preparation method thereof. The preparation method comprises the following steps: mixing modified diamond powder and copper powder by ball milling, and obtaining a diamond copper core material after hot-pressing sintering; activating the diamond copper core material, then magnetron sputtering a Ni / Pr alloy target material onto the upper and lower surfaces of the activated diamond copper core material to form a Ni / Pr composite intermediate layer; vacuum welding copper sheets on the upper and lower surfaces of the Ni / Pr composite intermediate layer to obtain the diamond copper-based composite material. The diamond copper-based composite material prepared by the application has high density, excellent thermal conductivity, low thermal expansion coefficient and is convenient to process.

Embodiments of the present application provide an image generation method and device, electronic equipment, an endoscope system and a storage medium. The method comprises: in response to a video recording instruction, recording a target video, the target video comprising a plurality of endoscope images; during the recording of the target video, in response to an image interception instruction, intercepting a target endoscope image corresponding to the image interception instruction from the target video; and generating a marked image based on the target endoscope image, the marked image comprising a thumbnail image corresponding to the target endoscope image and image identification information, the image identification information comprising a timestamp of the corresponding target endoscope image. When the marked image is used for display, the scheme can not only improve the viewing efficiency of the user, but also make the user interface more tidy and the user experience better.

The TiB2-reinforced ultra-coarse grain WC-Co-based hard alloy for the spherical teeth of the shield tunneling machine comprises the following components in percentage by mass: 10 percent of Co, 1 percent of TiB2 and the balance of WC powder, and a preparation method of the TiB2-reinforced ultra-coarse grain WC-Co-based hard alloy comprises the following steps: 1, preparing WC-Co-TiB2 composite powder; 2, preparing a blank of the WC-Co-TiB2 composite powder; and thirdly, the WC-Co-TiB2 hard alloy material is sintered. TiB2 is added through a wet chemical method, the ball milling time, the rotating speed and the ball-to-material ratio are controlled in the ball milling process, the hardness and the fracture toughness of the hard alloy are effectively improved, the hardness of the WC-Co-TiB2 hard alloy prepared through the method can reach 1252.32 kg / mm < 2 >, the fracture toughness reaches 17.53 MPa.m < 1 / 2 >, the service life of the hard alloy in a severe environment is prolonged, and the WC-Co-TiB2 hard alloy is suitable for industrial production. And the risk and the cost caused by damage of hard alloy parts are reduced.

The present invention belongs to the field of metal materials and processing technology, and particularly relates to a method for preparing a nano-carbon material and a metal-based composite powder and its application. The preparation method comprises the following process steps: nano-carbon material dispersion, gas-solid mixing, metal material melting, composite powder aerosol preparation, powder collection, etc. The process can prepare nano-carbon material and metal-based composite powder without significantly increasing the cost. The preparation method of the present invention can be scaled up and mass-produced, and has good application and promotion prospects.

The present invention belongs to the technical field of back contact batteries, and specifically relates to a post-texturing preparation method for back contact batteries, comprising: polishing in S01 includes a first pickling step, the first pickling adopts a first mixed solution containing hydrofluoric acid, hydrochloric acid, and ozone, and the concentration of ozone in the first mixed solution is adjusted so that a first oxide layer is formed on the surface of a silicon wafer, and the cleaning process after the texturing in S04 includes alkaline washing A and acid washing B, and the acid washing B is divided into two steps: first, a mask layer of a certain thickness is removed by an acid solution corrosion method containing hydrofluoric acid, and then a second mixed solution containing hydrofluoric acid, hydrochloric acid, and ozone is directly used for a second pickling; the concentration of ozone in the second mixed solution is adjusted so that a second oxide layer is formed on the back and front of the silicon wafer respectively. The present invention can improve the uniformity of each oxide layer and the open circuit voltage of the battery, and ultimately achieve the purpose of reducing production costs and improving battery efficiency.

The invention belongs to the technical field of back contact cells, and particularly relates to a back contact cell post-texturing preparation method, which comprises the following steps: S01, polishing comprises a first acid pickling step, the first acid pickling step adopts a first mixed solution containing hydrofluoric acid, hydrochloric acid and ozone, the concentration of ozone in the first mixed solution is adjusted to form a first oxide layer on the surface of a silicon wafer, and a second oxide layer is formed on the surface of the silicon wafer; the cleaning process after texturing in the step S04 comprises alkali washing A and acid washing B, and the acid washing B is divided into two steps: firstly, removing partial thickness of the mask layer by adopting an acid solution corrosion method containing hydrofluoric acid, and then directly performing second acid washing by adopting a second mixed solution containing hydrofluoric acid, hydrochloric acid and ozone; and adjusting the concentration of ozone in the second mixed solution to form second oxide layers on the back surface and the front surface of the silicon wafer respectively. According to the invention, the uniformity of each oxide layer and the open-circuit voltage of the cell can be improved, and the purposes of reducing the production cost and improving the cell efficiency are finally achieved.

The invention relates to an air energy storage power station information platform data management method and device, equipment and a medium. The method comprises the steps of obtaining a new data set and a current data screening rule corresponding to a current data set; based on the current data screening rule, performing partition processing on a newly added data set to obtain multiple pieces of partition data; based on a distributed computing framework, independently processing the data of each partition to obtain a classification evaluation result corresponding to the data of each partition; and if a result with unqualified classification exists in the plurality of classification evaluation results, correcting the current data screening rule based on the unqualified classification evaluation result and the plurality of partition data to obtain a corrected data screening rule, and providing first target data for the user based on the corrected data screening rule. According to the method and the device, the current data screening rule is dynamically corrected according to the classification evaluation result, so that the data screening rule can be adaptively adjusted to ensure the convenience, the accuracy and the correlation of the screening result.

The application discloses a preparation method of an impact-resistant non-uniform hard alloy, and the method takes tungsten carbide powder with a particle size of 0.6-0.8 microns and tungsten carbide powder with a particle size of 2-2.5 microns as main raw materials, and is additionally provided with cobalt powder as a binder phase, and is further combined with grain inhibitors such as tantalum carbide, chromium carbide and yttrium oxide to inhibit abnormal growth of fine crystal regions in a sintering process, so as to ensure the stability and high hardness of the fine crystal structure of the bearing substrate, and to form a Zener pinning effect to mechanically hinder the migration of the grain boundary, further refine and stabilize the structure, purify the interface and strengthen the phase combination, and solve the problems of the existing hard alloy, such as difficult consideration of strength and toughness, easy fragmentation under high-speed impact load, sharp performance degradation caused by interface weakening in a high-temperature environment and the like.

This invention relates to the field of electrochemical energy storage materials and lithium metal battery technology, specifically to an in-situ polymerized solid electrolyte, its preparation method and application, and lithium metal batteries. This in-situ polymerized solid electrolyte is prepared by heating a ring-opening polymerization reaction using 1,3-dioxolane and 1,1,1-trifluoro-2,3-epoxypropane as reactants, sodium thiosulfate as an initiator, and lithium salt and plasticizer fluoroethylene carbonate as a precursor solution. This electrolyte possesses numerous amorphous regions, which is beneficial for ion transport, enabling the formation of a self-supporting dense structure. It also ensures close contact with the electrode, resulting in a pure interface that effectively reduces interfacial impedance and avoids side reactions at the electrode interface. Furthermore, it enhances oxidation resistance, broadens the electrochemical window, and inhibits dendrite growth. While achieving good mechanical properties, it also improves the cycle stability and safety performance of the battery. It has excellent application prospects in lithium metal batteries, lithium-ion batteries, solid-state energy storage systems, or flexible electronic devices.

The invention provides a tungsten alloy prefabricated fragment and a preparation method thereof, and belongs to the technical field of powder metallurgy. The tungsten alloy prefabricated fragment provided by the invention comprises the following chemical components in percentage by mass: 85-95% of tungsten, 0.2-0.5% of cobalt, 3-7% of tantalum, 0.01-0.05% of manganese and the balance of nickel and iron. The mass ratio of nickel to iron is (1.8-4.0): 1. The tensile strength of the prepared tungsten alloy prefabricated fragment is larger than 1200 MPa, the HRC hardness is larger than or equal to 35, and the high-strength and high-hardness tungsten alloy prefabricated fragment is prepared.

The present application relates to the field of prefabricated concrete pile production, and specifically discloses a preparation method of a centrifugal reinforced prestressed solid square pile, comprising: mold pretreatment and cage reinforcement assembly, primary high-strength concrete distribution, mold closing and prestress tensioning, five-stage gradient centrifugal forming, residual slurry and impurity discharge, pile core high-strength concrete grouting and densification, and high-pressure steam curing. The present application uses gradient centrifugation to compact the outer layer of the pile body concrete layer by layer and uniformly arrange the aggregate, eliminates the soft interlayer of the pile core by discharging the residual slurry, and then fills the internal voids by secondary grouting of the pile core and low-speed centrifugal compaction, forming a full-face homogeneous structure with dense outer layer and high-strength core. Finally, the high-pressure steam curing strengthens the overall performance. The present application effectively solves the technical defects of uneven cross-section density and high core porosity caused by the traditional vibration process, significantly improves the compressive strength, bending performance and structural stability of the pile body, and is suitable for industrialized mass production.