Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

28results about How to "Fast repair" patented technology

Chip fault prediction method and device, equipment and storage medium

The invention relates to a chip fault prediction method and device, equipment and a storage medium, and the method comprises the following steps: carrying out the feature extraction of preprocessed electrical operation data, and obtaining electrical operation extraction feature data; constructing an electrical operation state network of the target chip based on the electrical operation extraction feature data; performing node state prediction on the target chip based on the electrical operation state network to obtain a node state prediction result; if the node state prediction result is that the target chip has a fault, performing fault positioning on the target chip based on the node state prediction result to obtain a fault position of the target chip; and performing fault path propagation analysis on the target chip based on the fault position to obtain a fault propagation path, and formulating a corresponding fault response measure based on the fault position and the fault propagation path, thereby solving the technical problem that a traditional fault detection method mainly depends on postmortem inspection.
Owner:SHENZHEN MICRO INNOVATION IND CO LTD

Repair method of reverse osmosis element

The invention discloses a reverse osmosis element repairing method. The method comprises the following steps: S1, carrying out acid-base cleaning and water washing on the reverse osmosis element which is damaged by oxidation; and S2, immersing the reverse osmosis element in a repair aqueous solution containing 4-(4, 6-dimethoxytriazine)-4-methylmorpholine hydrochloride, a polyamino compound, and rhodamine containing diamino or a derivative thereof, and washing with water to obtain the repaired reverse osmosis element. The desalination rate of the single reverse osmosis element repaired by the method can be recovered to 99% or above under standard test conditions, the repairing effect can be stably maintained for 3 months or above, and meanwhile, the high-pressure resistance and high-temperature resistance of the reverse osmosis element are further improved. The service life can be further prolonged and the operation and maintenance cost can be reduced when the method is applied to water treatment.
Owner:WANHUA CHEM GRP CO LTD

Salt cavern brine circulation crack repairing system and repairing method

The salt cavern brine circulation crack repairing system comprises a brine injection pipe, a brine outlet channel, an earth surface brine circulation device and an earth surface brine pump system, the brine injection pipe and the brine outlet channel are located in a salt cavern shaft, and the brine injection pipe is located on the center line of the space of the salt cavern shaft; the brine outlet channel is an annular space defined by a salt cavern shaft and a brine injection pipe, the brine injection pipe is connected with the earth surface brine pump system, the brine outlet channel is connected with the earth surface brine circulating device, the earth surface brine circulating device is connected with the earth surface brine pump system, brine is injected into a salt cavern through the brine injection pipe, and the brine is injected into the salt cavern through the brine injection pipe. Brine flows back to the earth surface brine circulating device through the brine outlet channel and then is circularly injected into the salt cavern through the earth surface brine pump system; through the brine positive circulation system in the shaft and in combination with the salt crystallization effect driven by the temperature difference, the damage and leakage problems of the second interface position of the salt cavern injection and production pipe are efficiently repaired, and the hidden danger of gas leakage is eliminated.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Flexible self-repairing anti-cracking material with porous structure and preparation method of flexible self-repairing anti-cracking material

The invention discloses a flexible self-repairing anti-cracking material with a porous structure and a preparation method of the flexible self-repairing anti-cracking material. The method comprises the following steps: dissolving a room-temperature self-repairing flexible polyurea elastomer SSPU and SDS in trichloromethane to obtain a viscous solution, adding water for emulsification, and manufacturing a large number of micron-sized closed holes in the SSPU through an inverse emulsion template method to obtain the flexible self-repairing anti-cracking material MPSPU-x with a porous structure. According to the flexible self-repairing anti-cracking material with the porous structure, the fracture energy and the flexibility of the material are synergistically improved, the repairing efficiency and the repairing speed of the material are not influenced, and the flexible self-repairing anti-cracking material is suitable for preparing various stretchable and functional devices.
Owner:NANJING UNIV OF SCI & TECH

Sand vegetation ecological restoration device

The utility model discloses an ecological restoration device for sand vegetation. The ecological restoration device comprises a frame; the supporting rods are arranged on the frame in a circumferential array and are in running fit with the frame; ground nails are fixed to the bottom end of the frame in a circumferential array mode, and drainage holes are formed in the bottom ends of the ground nails; the flow guide pipes are circumferentially arrayed on the side wall of the frame and are communicated with the drainage holes; and the water collecting assembly at least comprises conical blocks which are circumferentially arrayed on the side wall of the frame. According to the sand vegetation ecological restoration device, through the arrangement of the frame, the supporting rods, the ground nails, the drainage holes, the flow guide pipes and the conical blocks, water vapor in air can be condensed into water drops by means of the characteristic that the temperature difference between day and night in desert is large after saplings are fixed in sandy soil, and the water drops are collected and supplied to the roots of the saplings, so that the saplings are protected from being damaged. The saplings can absorb more water sources, large-area death of the saplings which are just planted due to water shortage is avoided, the survival rate of the saplings in the desert is increased, and the restoration speed of an ecological system is higher.
Owner:INST OF DESERTIFICATION CONTROL NINGXIA ACAD OF AGRI & FORESTRY SCI (NINGXIA KEY LAB OF SAND CONTROL & WATER & SOIL CONSERVATION) +1

Carbon fiber composite material defect repairing device and repairing method

The application discloses a kind of carbon fiber composite material defect repair equipment and repair method, it is related to gas cylinder repair equipment field, technical scheme is, including chassis, the middle part of chassis is set through passage, the lower portion of passage is set for supporting the support mechanism of carbon fiber gas cylinder, the upper surface of chassis one side parallelly arranged two slide rails, each slide rail is slidably connected with a slider, the clamping mechanism for clamping carbon fiber gas cylinder is fixedly arranged on slider, the middle part of clamping mechanism is set inflation passage, the inflation passage is coaxial with the axis of carbon fiber gas cylinder with gas inlet;The side of chassis is fixedly set main push rod;It further includes the guide rail fixedly set in the side of chassis, the repair mechanism for carbon fiber composite material repair is slidably arranged on guide rail.The beneficial effects of the application are: simple structure, convenient to use, fast repair speed, effectively shorten the repair time of carbon fiber gas cylinder, improve repair efficiency, reduce manpower and material cost.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Efficient water body remediation and treatment device

The utility model discloses an efficient water body remediation and treatment device, and relates to the technical field of water body remediation. The device comprises a connecting ring, a base is arranged in the connecting ring, the connecting ring and the base are fixedly connected through a first supporting air cushion, two sets of symmetrically-distributed fixing plates are fixedly installed at the top end of the base, and a rotating rod rotationally penetrates through the opposite sides of the two sets of fixing plates jointly. The outer side of the rotating rod is fixedly sleeved with symmetrically-distributed supporting plates, and the top ends of the two supporting plates are jointly and fixedly provided with a photovoltaic panel. The air blower is driven by the arranged photovoltaic panel to work, pressure air output by the air blower enters the position below a water body through the air blowing pipe, so that oxygenation of the water body is achieved, meanwhile, air blown out of the air blowing pipe can drive the impeller to rotate, the impeller drives the water body to rotate, and the oxygenation effect is further improved; growth of animals and plants in the water body is promoted, and the water body restoration speed is increased.
Owner:ANHUI SCI & TECH UNIV

Equipment protection method and device, electronic equipment and storage medium

The invention discloses an equipment protection method and device, electronic equipment and a storage medium, and relates to the technical field of data processing, and the main technical scheme comprises the steps of obtaining a target protection action of a protection device under the condition of determining that the protection device of the equipment is triggered; determining a target fault type of the equipment according to the target protection action; and storing the target fault type in a protection log of the protection device so as to maintain the equipment based on the protection log. Compared with the prior art, the target protection action of the protection device is acquired, and the target fault type of the equipment is determined according to the target protection action; according to the method, the target fault type is stored in the protection log of the protection device, and the fault reason of the equipment can be quickly determined based on the protection log, so that the equipment repair speed is improved.
Owner:内蒙古聚达发电有限责任公司

Rare-earth-based growth factor ReO-Ac, hydrocolloid dressing and preparation method of rare-earth-based growth factor ReO-Ac

The invention provides a rare-earth-based growth factor ReO-Ac, a hydrocolloid dressing and a preparation method thereof.The rare-earth-based growth factor ReO-Ac is prepared by reacting a reaction solution with a rare-earth nitrate compound solution and a buffer solution as raw materials at the temperature of 100-150 DEG C. The buffer solution comprises acetic acid, sodium acetate and a solvent. The mass ratio of sodium acetate to acetic acid is (0.5-2): 1. The rare earth-based growth factor disclosed by the invention can remove free radicals in a long-acting and lasting manner, provides a favorable environment for a wound to absorb nutrient substances, improves the absorption efficiency of the nutrient substances in a tissue repair process, and integrally improves the human tissue repair speed.
Owner:TIANJIN BAOGANG RES INST OF RARE EARTHS CO LTD +1

High-altitude foreign matter monitoring device

ActiveCN224150594Uavoid blockingEnsure effective detection rangeStands/trestlesForeign matterElectric machinery
The utility model discloses a high-altitude foreign matter monitoring device, and particularly relates to the technical field of monitoring devices, the high-altitude foreign matter monitoring device comprises a base, the top of the base is fixedly connected with a fixing rod, the inner wall of the fixing rod is slidably connected with a first moving block, an adjusting assembly is arranged above the base, and a mounting assembly is arranged in the base. The adjusting assembly comprises two connecting frames, and the tops of the front faces of the two connecting frames are fixedly connected with the bottom of a first moving block. According to the utility model, when the monitoring environment changes, the motor is turned on to drive the two rotating seats to rotate on the outer surface of the round rod, so that the irradiation angle of the camera can be adjusted, the monitoring direction and angle can be changed at will according to actual requirements, the original detection sight line can be prevented from being blocked, and the effective detection range of the device is ensured; and moreover, the device can adapt to various application scenes, and the practicability of the device is improved.
Owner:HUBEI HUANAN SECURITY CONSULTANCY CO LTD

A tool for rapid repair of underwater concrete structures

The application belongs to the technical field of underwater concrete structure repair and provides a kind of underwater concrete structure fast repair tool, including: support, swivel ring and annular climbing frame, support includes: inner ring seat and outer ring seat, inner ring seat embraces the upper part of the outside of pier column and is fixed with it, and inner ring seat is connected with outer ring seat through adapter pipe;Swivel ring is located above the support and embraces the outside of pier column, and swivel ring is rotationally provided with walking wheel below, walking wheel is seated on the top of outer ring seat to displace along the circumferential direction of outer ring seat;Annular climbing frame is hoisted below the support and embraces the outside of pier column.The application is used as a tool for underwater concrete pier column repair operation, which can replace manual chiseling of pier column surface, and the work efficiency and work quality are obviously improved, the repair speed of pier column is greatly accelerated, and the tool can chisel the surface of pier column without workers in water, thereby reducing the risk of underwater operation.
Owner:QINGDAO HAIHONGWEI MARINE NEW MATERIALS TECHNOLOGY CO LTD

A combination of a small molecule peptide and a leukocyte extract and uses thereof

The application provides a small molecule peptide and leukocyte extract composition and application thereof, and belongs to the medical technical field.The composition comprises leukocyte extract prepared by a specific method and a small molecule peptide ZKSA-P-1001 (amino acid sequence: RWRFKWKK), and the mass ratio of the two is 1:1 to 3:1.The experimental results show that the leukocyte extract and ZKSA-P-1001 have a significant synergistic effect in combination application.Even when ZKSA-P-1001 is used alone at a low concentration with limited activity, the composition can significantly improve the migration ability of skin fibroblasts.Animal model experiments further confirm that the medicine containing the composition of the application can significantly accelerate the healing of infectious skin damage, especially in the early healing stage.The application provides an efficient, synergistic and promising skin repair solution.
Owner:EUSOMAL STEM CELL ENGINEERING (SHANDONG) CO LTD

Repair alloy powder, paste material and in-hole repair method for main drive sealing runway of tunnel boring machine

The invention provides repairing alloy powder, a pasty material and an in-hole repairing method for a main drive sealing runway of a tunnel boring machine. The repair alloy powder comprises Ni-based alloy powder, WC particles and diamond particles. The repairing alloy powder comprises, by mass, 0.7%-1.2% of C, 3.0%-5.5% of Si, 3.0%-5.5% of B, 10%-20% of Cr, 7%-10% of Fe, 5%-20% of WC particles, 5%-20% of diamond particles and the balance Ni, wherein the mass of the C, the Si, the B, the Cr, the Fe, the WC particles and the diamond particles is 100%. According to the repairing method, in-hole repairing is conducted on the abraded position of the sealing runway through the repairing method of first cold coating and then heating, the repairing speed is high, and the quality of the repaired surface is high. Compared with traditional surfacing repair, the sealed runway repaired through the method is lower in abrasion weight loss. In addition, dust pollution in the repairing process is avoided, the utilization rate of repairing powder is increased, and the polishing workload after repairing is reduced.
Owner:CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD

Self-resetting assembly type steel structure beam-column connecting joint with double-insurance collaborative composite energy consumption

The utility model provides a self-resetting assembly type steel structure beam-column connecting joint with double-insurance collaborative composite energy consumption. The self-resetting assembly type steel structure beam-column connecting joint comprises a steel column, two ends of the steel beam are in butt joint with the steel columns on two sides; the two sets of bending-shearing composite energy dissipation damping devices are oppositely connected to the two sides of a web plate of the steel beam through bolts at the joint of the steel beam and the steel column, and are connected with a flange of the steel column through bolts at the same time; the two sets of tension-shear composite energy dissipation damping devices are oppositely connected to the upper flange and the lower flange of the steel beam through bolts at the joint of the steel beam and the steel column and are connected with the flanges of the steel column through bolts; the two sets of self-resetting devices comprise prestressed cables and two sets of prestressed tools, the two sets of prestressed tools are oppositely fixed to the two sides of webs of the steel columns and the steel beams respectively or oppositely fixed to the two sides of webs of the steel columns on the two sides respectively, and the two ends of the prestressed cables are anchored to the prestressed tools. Through reasonable design, the beam-column connecting joint keeps elasticity under small and medium earthquakes and can be continuously used without being repaired; the main body structure keeps elastic under large earthquakes and super-large earthquakes, and continuity of building structure functions is achieved by replacing the energy dissipation assembly.
Owner:BEIJING UNIV OF TECH

Laser cladding repair method for aero-engine blade tip

This invention provides a laser cladding repair method for the tip of an aero-engine blade. By optimizing the laser cladding process parameters and combining them with a specific scanning path, the problem of heat accumulation during the repair of the blade tip by laser cladding is solved. This method allows for a more holistic and systematic repair of the blade tip, ensuring that the quality of the repaired blade meets the requirements. It also improves the blade repair efficiency, thereby increasing the utilization rate of the failed blade and reducing the blade manufacturing cost.
Owner:SUZHOU ZHONGKE INNOVATION INST OF LASER INTELLIGENT MFG

Preparation method of magnetic microorganism self-repairing cement-based material

The invention provides a preparation method of a magnetic microorganism self-repairing cement-based material, and relates to a concrete crack self-repairing technology, and the preparation method comprises the following steps: preparing a bacillus pasteurii culture medium; inoculating bacillus pasteurii, and culturing until the concentration is 1 * 10 < 8 > cell / mL to 9 * 10 < 8 > cell / mL, so as to obtain a cultured bacterial liquid; adding the second urea solution into a 15mmol / L-30mmol / L FeCl2 solution, filtering and sterilizing, and fully reacting to obtain an iron source solution; mixing the cultured bacterial liquid with an iron source solution according to a ratio of 1: 20-1: 16, and shaking uniformly to obtain a magnetic bacillus pasteurii liquid; magnetic bacillus pasteurii liquid, a plurality of nutrient substances and a mineralizer are added into cement mortar and mixed uniformly, the magnetic microorganism self-repairing cement-based material is obtained, and the ratio of the magnetic bacillus pasteurii liquid to water of the cement mortar is 15%-20%. The material prepared according to the invention can solve the problem of low utilization rate of microorganisms in concrete, significantly improve the crack repair rate, and prolong the service life of a concrete structure.
Owner:TIANJIN CHENGJIAN UNIV +5

A multi-self-repairing modified asphalt based on photo-thermal filler and dynamic hydrogen bond material and a preparation method thereof

The application discloses a kind of based on photothermal filler and dynamic hydrogen bond material multiple self-repairing modified asphalt and preparation method thereof, belong to road engineering and material science technology field.The raw material of the multiple self-repairing modified asphalt based on photothermal filler and dynamic hydrogen bond material of the application includes by mass fraction:SBS modified asphalt 100 parts, photothermal filler 1-5 parts and dynamic hydrogen bond material 1-3 parts.The application aims to combine photothermal conversion mechanism and dynamic hydrogen bond self-repairing mechanism, accelerate the movement of asphalt and polymer molecular chain at crack, to improve the self-repairing ability of asphalt material, prolong the service life of asphalt pavement, and reduce the maintenance cost of asphalt pavement.The application solves the deficiency of traditional self-repairing asphalt in repair frequency, repair effect and repair durability, has excellent photothermal conversion efficiency and multiple self-repairing performance, and the repair efficiency does not appear obvious attenuation after multiple load damage-illumination repair cycle, can effectively restore mechanical properties, suitable for road construction and maintenance under different climate conditions.
Owner:DALIAN UNIV OF TECH

Salt cavern dry-wet cycle crack repairing system and repairing method

The invention discloses a salt cavern dry-wet cycle crack repairing system and method, the salt cavern dry-wet cycle crack repairing system comprises a gas channel, a gas injection pipeline, a gas production pipeline, a pressure control module and a temperature-humidity monitoring module, the gas channel is an internal space of a salt cavern shaft for gas circulation; the gas injection pipeline is communicated with the gas channel and is used for injecting high-pressure gas into the salt cavern; the gas production pipeline is communicated with the gas channel and is used for producing gas from the salt cavern; the pressure control module is communicated with the gas injection pipeline, the gas production pipeline and the gas path channel so as to control the gas injection and production pressure and adjust gas injection and production to enable the gas pressure in the salt cavern to change within an allowable range; the temperature and humidity changes in the salt cavern are monitored in real time through the temperature-humidity monitoring module so as to ensure that the relative humidity in the salt cavern reaches a set target range in a dry-wet cycle; the crack repairing speed of the damaged surrounding rock in the salt cavern can be increased, the repairing capacity is enhanced, and the repairing uniformity is improved.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

A microbial agent based on arsenic-converting microorganisms for long-term oxidation and stabilization of soil arsenic pollution

ActiveCN119177122Bfast repairEnhance electrostatic interactionBacteriaContaminated soil reclamation
The present invention belongs to the technical field of soil pollution remediation, and specifically relates to a bacterial agent based on arsenic conversion microorganisms for long-term oxidation and stabilization of soil arsenic pollution. The bacterial agent based on arsenic conversion microorganisms for long-term oxidation and stabilization of soil arsenic pollution includes a modified guar gum carrier and a bacterial solution, and the preparation of the modified guar gum carrier includes the following steps: taking guar gum, phosphorus tribromide, and pyridine in toluene at 5-20°C for 10-12h, and treating to obtain brominated guar gum; taking brominated guar gum and N,N,N',N'-tetramethyl-1,4-butanediamine in tetrahydrofuran for 16-24h, and treating to obtain a modified guar gum carrier. The modified guar gum and the bacterial solution act together to increase the bacterial solution repair speed, and can adsorb and aggregate arsenic ions in the soil, so that the bacterial solution can quickly oxidize trivalent arsenic ions into a pentavalent arsenic ion state with low toxicity and low mobility.
Owner:TONGJI UNIV

A lamp holder for overall repair of inspection wells

This invention discloses a lamp holder for the overall repair of inspection wells, including a support base. A fixing plate is connected to the top of the support base, and a fixing rod is fixedly connected to one side wall of the fixing plate. A connecting roller is rotatably sleeved on the fixing rod. Multiple sets of ultraviolet (UV) repair lamps are fixedly connected to the outer side of the connecting roller. Each set of multiple UV repair lamps is centrally symmetrical about the center of the corresponding connecting roller cross-section. Two connecting plates are also provided on the fixing rod, respectively located on the front and rear sides of the connecting roller. This invention ensures that the distance between the UV repair lamps and the inner wall of the pipe is equidistant at all points, and also allows the UV lamps to rotate at a uniform speed, ensuring that the inner wall of the pipe receives uniform UV irradiation, which is beneficial for the repair of inspection well pipes. Furthermore, the device can automatically move into the interior of the pipe without manual adjustment, thus accelerating the repair speed of inspection well pipes.
Owner:SHANGHAI YUFAN ENVIRONMENTAL TECH CO LTD

Node repair method and related device

ActiveCN117097746BReduce transmission overheadfast repairError preventionRedundant data error correctionEngineeringData node
Embodiments of the present application provide a node repairing method and related equipment, which are used to solve the network transmission problem caused by repairing multiple nodes in a distributed storage system. The method comprises: acquiring all data nodes in the distributed storage system; wherein the all data nodes comprise fault nodes and surviving nodes; scheduling and grouping the surviving nodes, wherein the surviving nodes in any group are in pairs; performing a merge operation on the surviving nodes in the same group to transmit the node repairing data in the current surviving node to other surviving nodes in the same group to form a node repairing block; wherein the node repairing block is formed by the node repairing data of other surviving nodes and the node repairing data of the current surviving node; and transmitting the node repairing block in any group to the fault nodes to repair the fault nodes, so that the fault nodes complete fault repairing according to the node repairing block.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)

Mine pit soil remediation system and process based on landscape optimization

The invention relates to the technical field of ecological soil remediation, in particular to a mine pit soil remediation system and process based on landscape optimization. The mine pit soil remediation system comprises a main body, supporting shafts symmetrically distributed front and back are rotationally arranged on the left side and the right side of the main body, and wheels are arranged at the ends, away from the main body, of the supporting shafts; conveying shafts which are symmetrically distributed left and right are jointly and rotationally arranged on the front inner wall and the rear inner wall of the main body, and crushing units for crushing soil are arranged on the conveying shafts. Through the remediation units, physical remediation can be conducted on the soil in a heating mode, and chemical remediation can also be conducted on the soil in a mode of automatically adding chemical agents; the soil remediation device is simple in structure, convenient to use, capable of conducting physical and chemical remediation on soil at the same time and suitable for most soil remediation work, in the soil remediation process, the remediation unit can increase the soil remediation speed in a rotating mode, and the soil remediation efficiency of the soil remediation device is further improved.
Owner:SHIJIAZHUANG TIEDAO UNIV

A Disaster Recovery Method and System for Archival Data Based on Distributed Technology

ActiveCN121858358BPrevent instant exhaustionSuppress repair stormHardware monitoringRedundant operation error correctionLinear codingInternet traffic
This application discloses a method and system for archival data disaster recovery based on distributed technology, relating to the field of data disaster recovery technology. The method includes: encoding the original archival data object to obtain K data fragments and M verification fragments, which are then distributed and stored in a cluster; real-time monitoring of the storage node status, and when a fault is detected, determining the set of fragments lost due to the fault, denoted as the set of fragments to be repaired; calculating the heat value of each fragment to be repaired, and predicting the availability of repair resources for multiple future time intervals, generating a repair task queue based on the heat value and the availability of repair resources; selecting a subset of surviving fragments for repair by calculating their network pressure index, and generating repair fragments through linear encoding operations; performing hash verification, and storing the verified fragments in healthy storage nodes. This application aims to solve the problems of large impact on business performance, high latency in critical data recovery, and severe network traffic redundancy during data repair, effectively suppressing repair storms.
Owner:NEIJIANG NORMAL UNIV

Rapid and accurate bonding pad repairing method and device

The invention belongs to the field of bonding pad repair, and discloses a rapid and accurate bonding pad repair method and equipment, and the method comprises the steps: providing a circuit board with a defective bonding pad; importing the Gerber file of the circuit board into a computer, and preparing to start repairing work; marking a Mark point; carrying out primary mechanical positioning (probe) on the defective bonding pad; performing visual positioning on the defective bonding pad; carrying out secondary mechanical positioning (printing head) on the defective bonding pad; printing a bonding pad; curing the bonding pad; and finishing the shape of the bonding pad. According to the invention, a three-time positioning method is adopted, a mechanical pointer is firstly used for positioning the position of the bonding pad, and then a scanning camera part is used for secondary positioning, so that the positioning precision can be effectively improved; according to the method, the bonding pad repairing speed is high, and the speed advantage is more prominent especially for the condition of large-area bonding pad defect; the electronic additive manufacturing technology is adopted to repair the bonding pad, so that material waste can be reduced, and the method is very environment-friendly.
Owner:NAVAL UNIV OF ENG PLA

A method for repairing a protective layer of a slurry circulating pump impeller

The application relates to a repair protective layer preparation method of a slurry circulating pump impeller, which comprises the following steps: a surface pretreatment step, a laser cladding additive manufacturing step, a finishing step, a surface treatment step and a corrosion and wear resistance treatment step, wherein the laser cladding additive manufacturing step comprises the following steps: automatically planning a route by using a laser cladding device, setting a repair transition layer, and setting at least one repair layer on the repair transition layer, wherein the scanning speed of the laser cladding device for setting the repair layer is greater than the scanning speed for setting the repair transition layer, the repair transition layer is made of an iron-based alloy material matched with the material of the impeller, and the repair layer is made of an iron-based alloy material with micro-nano particles added with WC and CeO2. The repair structure formed in this way has high bonding strength with the impeller base, and the impeller base and the repair layer are better integrated; the repair layer has the advantages of strength, toughness, wear resistance and corrosion resistance, the impeller as a whole is repaired to meet the use requirements, and the service life is prolonged.
Owner:FUJIAN HUADIAN KEMEN POWER GENERATION CO LTD +1

A single-column pier bridge reinforcement structure with adjustable additional support and construction method thereof

ActiveCN115030063BImprove lateral roll resistanceSolve the safety problem that is prone to rolloverBridge erection/assemblyBridge strengtheningArchitectural engineeringSlide plate
The present invention provides an additional support with adjustable lateral position. Based on the additional support, a single-column pier bridge is reinforced. The bridge includes a beam body, a single-column pier and a cap. The reinforcement structure includes a perforated bottom plate, a horizontal perforated sliding plate, an L-shaped additional support, a steel diagonal brace, a slide groove structure, a baffle, a single rod and an anchor bolt. The single-column pier is surrounded by a perforated bottom plate, the perforated bottom plate is provided with a slide groove, a horizontal perforated sliding plate is installed in the slide groove, an L-shaped additional support is provided on the horizontal perforated sliding plate, and the L-shaped additional support is provided with a slide groove structure. A single rod is hingedly installed in each slide groove structure through a slider. The other ends of the four single rods located on one side of the L-shaped additional support converge and are connected to the perforated steel pipe. The single-column pier bridge reinforcement structure provided by the present invention provides effective additional support for the transverse outer edge of the beam body at the position of the single-column pier by arranging a steel diagonal brace and a baffle on the L-shaped additional support, significantly improving the lateral anti-rollover capacity of the existing single-column pier bridge, and the reinforcement effect is remarkable.
Owner:ZHENJIANG CHANGSHAN ENVIRONMENT CO LTD