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13results about How to "Guaranteed service performance" patented technology

Method for low temperature ion nitriding and applications thereof

ActiveCN119932462BFacilitated ionizationIncreased diffusion rateMetallurgyGlow discharge
The application discloses a low-temperature ion nitriding method and application. The low-temperature ion nitriding method comprises the following steps: under a selected temperature condition, ion etching treatment is performed on the surface of a workpiece by adopting an arc-enhanced glow discharge process, and then plasma nitriding treatment is performed on the workpiece by adopting an arc-enhanced plasma process to obtain a nitriding workpiece; wherein, a positive and negative alternating voltage is applied to the workpiece in the arc-enhanced plasma process. The low-temperature ion nitriding method provided by the application can realize nitriding at a lower temperature, effectively improves the deformation degree of the workpiece, and is widely applicable to surface strengthening of cutters, molds and metal parts.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI

Method and system for preventing telecommunication fraud

The invention discloses a method and a system for preventing telecommunication fraud. The system comprises an anti-fraud control center module, a first cooperation end, a second cooperation end and a third cooperation end, the first cooperation end, the second cooperation end and the third cooperation end are all connected with the anti-fraud control center module through the Internet or a special line, and the anti-fraud control center module is used for receiving and processing information of the first cooperation end, the second cooperation end and the third cooperation end and sending a processing result to the related cooperation ends for processing; through interconnection and information sharing among the first cooperation end, the second cooperation end and the third cooperation end, on the basis of shared information judgment, judgment of transfer risks can be realized, transfer reminding with different measures is carried out on the first cooperation end, the second cooperation end and the third cooperation end, so that the transfer security is improved, and meanwhile, under the state of information sharing, the transfer risk of the first cooperation end, the second cooperation end and the third cooperation end is improved. The method can achieve the judgment of the transfer risk in an extremely short time, can avoid the delay of normal transfer, and guarantees the service effect.
Owner:黄文良

Precast raft foundation components, prefabricated raft foundations, and houses

This invention relates to a prefabricated raft foundation component, comprising a prefabricated square base plate and a cross beam prefabricated on the square base plate. The four ends of the cross beam extend to the four sides of the square base plate, and each of the four ends of the cross beam extends to form a flange plate. The surface of the flange plate is parallel to the corresponding side of the base plate, and bolt assembly holes and / or pre-embedded assembly bolts are provided on the flange plate. The invention also relates to a prefabricated raft foundation using this prefabricated raft foundation component and a building using this prefabricated raft foundation. This invention enables prefabricated construction of raft foundations, significantly shortening the construction period and reducing construction costs. The prefabricated raft foundation component can be prefabricated, transported, stored, and installed on-site as standard parts. The bolt assembly structure enables the splicing of adjacent raft foundation components, resulting in high reliability and stability of the connection structure and ensuring the service performance of the raft foundation.
Owner:SANYA SCI & EDUCATION INNOVATION PARK WUHAN UNIV OF TECH

A high-alloy high-performance rotary guide component and its manufacturing method

This invention discloses a high-alloy high-performance rotary guide component and its manufacturing method, belonging to the field of stainless steel technology. It solves the problems of poor microstructure uniformity and inability to simultaneously achieve mechanical properties and stress corrosion resistance in existing rotary guide components. The manufacturing method includes: smelting molten steel; preparing ingots; forging the ingots into steel billets using a high-speed forging machine after they are tapped from the furnace; heating and holding the steel billets; forging the steel billets into intermediate billets using a radial forging machine; water cooling the intermediate billets; forging the water-cooled intermediate billets a second time using a radial forging machine, followed by air cooling to obtain finished steel billets; straightening, machining, and shot peening of the finished steel billets to obtain rotary guide components; the composition of the rotary guide components, by mass percentage, includes: 18.00% ≤ Cr < 28.00%, 3.00% ≤ Mo ≤ 6.00%, 14.00% ≤ Ni ≤ 20.00%, 3.00% ≤ Mn ≤ 8.00%, Si ≤ 0.4%, Nb ≤ 0.25%, P ≤ 0.025%, S ≤ 0.02%, C ≤ 0.03%, N ≥ 0.3%, with the balance being Fe and other unavoidable impurities. The rotary guide components of this invention have fine and uniform grains and excellent mechanical and corrosion resistance.
Owner:CHINA IRON & STEEL RESEARCH INSTITUTE GROUP CO LTD

A platinum-based alloy protective sleeve and preparation method thereof

ActiveCN116116928Bfine surfaceExcellent high temperature mechanical propertiesMetal-working apparatusFurnace typesPlatinumChemical composition
The present invention provides a platinum-based alloy protective sleeve and a preparation method thereof, comprising the steps of vacuum melting, hot forging, plate rolling, tube making, precision drawing, head sealing, calendering and the like. By improving the chemical composition of the dispersant in the raw material and the process, the precision drawing and head sealing processes are improved, so that the surface of the precious metal protective sleeve is bright, the sealing is excellent, the dimensional accuracy of the inner and outer diameters and the wall thickness is high, the service life is long, etc.
Owner:CHONGQING MATERIALS RES INST

Longitudinal sleeper limiting structure for large-span flexible bridge rail transit and using method

The invention discloses a long-span flexible bridge rail transit longitudinal sleeper limiting structure and a using method, and relates to the technical field of rail transit. The channel steel side plates are vertically arranged on the steel bottom plate side by side at intervals; the two ends of the channel steel top plate are correspondingly arranged in the U-shaped limiting spaces of the two channel steel side plates respectively. The longitudinal sleeper can be vertically restrained, local tension of the longitudinal sleeper under the live load action of a train is overcome, the problems of track structure disengaging, track deformation, sleeper cracking and the like are solved, and the track service performance is guaranteed.
Owner:CHINA RAILWAY MAJOR BRIDGE RECONNAISSANCE & DESIGN INSTITUTE CO LTD

A method for full-automatic bending of a turnout curved rail piece

ActiveCN115921619BFully automatic bending processing realizedGuaranteed service performance
A method for fully automated bending of turnout curved rail components includes the following steps: Step 1: Positioning the rail component. An identification device is set up in the bending area. When the rail component moves to the bending area, it stops and is fixed by a fixing device. Step 2: Bending operation. A deflection measuring device is installed on the rail component to be bent, and the bending operation begins. The deflection of the rail component is measured in real time. After the rail component reaches a certain deflection, the bending equipment stops operating, and the rail component is unloaded. The bending equipment is a three-point bending system, and the anvil is a split structure. Step 3: Fine adjustment of the rail component. The deflection measuring device is unloaded, and a 3D scanner is set up in the bending area to scan the bent portion, modeling the curvature and levelness of the rail component. Based on the results, the levelness and curvature of the rail component are automatically fine-tuned. The method provided by this invention realizes fully automated processing of turnout rail components, saving manpower.
Owner:TIEKE JINHUA TESTING CENT CO LTD +4

A high-impact-resistant aluminum alloy material and a preparation method thereof

ActiveCN116552067BAchieve high strengthGuaranteed service performanceLaminationLamination apparatusCarbon fibersNonwoven fabric
The application provides a high-impact-resistance aluminum alloy material, which comprises an impact-resistant outer layer, a gradient transition layer and an energy-absorbing buffer structure inner layer, the impact-resistant outer layer is composed of an aluminum alloy material and a three-dimensional carbon fiber fabric, the gradient transition layer is composed of an aluminum alloy material and a ceramic reinforced non-woven fabric layer, and the energy-absorbing buffer structure inner layer is a porous foam alloy layer. The application further provides a preparation method of the high-impact-resistance aluminum alloy material, and the impact resistance of the aluminum alloy is improved through the cooperation of the three-layer structure of the impact-resistant outer layer, the gradient transition layer and the energy-absorbing buffer structure inner layer.
Owner:苏州创泰合金材料有限公司

Intelligent question answering method and device

The application discloses an intelligent question and answer method and device, and relates to the technical field of artificial intelligence. The method comprises the following steps: performing a recognition task on a user query by using a first model to generate a first recognition result and at least one corresponding confidence score, wherein the first model is a lightweight model; if each of the at least one confidence score is not lower than a corresponding preset confidence threshold, then based on the first recognition result, retrieving or generating response content from a knowledge base; otherwise, inputting the user query and its associated context information into a second model; the second model is a generative language model, and the parameter order of magnitude and semantic understanding ability of the second model are higher than those of the first model; performing semantic understanding on the user query by using the second model, and based on the associated context information, performing resolution and normalized rewriting on the reference components in the query to generate a second recognition result; and based on the second recognition result, retrieving or generating response content from the knowledge base.
Owner:IND BANK CO

Sintering device and method for metal foil abutted seam interconnection

The invention relates to the technical field of metal sintering interconnection, and discloses a sintering device and method for metal foil abutted seam interconnection, and the sintering device comprises a heating platform, a multi-degree-of-freedom direct writing mechanical arm, a shielding gas device and a high-temperature thermal imager. The sintering device can be suitable for metal foil samples of different shapes and sizes, large-area uniform heating is achieved, the sintered samples are heated uniformly, and the interconnection quality of the sintered samples is improved. A multi-layer gradient sintering method is used in the sintering process, and the curing effect of each time of soldering paste coating and the metallurgical bonding strength between different layers can be guaranteed. By means of the gradient sintering method, the service performance of the sintered metal foil can be guaranteed, it is guaranteed that the resistivity of a sintered interconnection area is lower while the sintering interconnection strength is guaranteed, better heat conduction and electric conduction effects are achieved, and meanwhile the interconnection reliability is improved.
Owner:BEIHANG UNIV +1

A process method of pre-blasting and then processing for high-quality and high-efficiency processing of hard and brittle materials

PendingCN122253095AReduce the difficulty of cuttingGuaranteed service performanceAbrasive blastingCrazing
The application discloses a process method of sand blasting before machining for high-quality and high-efficiency machining of hard and brittle materials, and belongs to the technical field of precision machining of hard and brittle materials. In view of the problems of easy edge collapse, cracks and low machining efficiency of hard and brittle materials in cutting, sand blasting treatment is performed on the surface to be machined of a workpiece before mechanical cutting machining, a uniform micro-crack damage layer is formed in a controllable manner on the material surface layer by using the impact of high-speed abrasive particles, and the bonding strength of the surface layer is weakened; subsequent cutting machining is then performed, so that the material is mainly removed in brittleness and secondarily removed in ductility, the cutting force and tool wear are significantly reduced, defects such as edge collapse and cracks are inhibited, and the machining surface quality and machining efficiency are improved. The process is simple and has strong adaptability, and can be widely applied to the precision and high-efficiency cutting machining scenes of various hard and brittle materials such as ceramics, monocrystalline silicon and sapphire.
Owner:TSINGHUA UNIVERSITY +1