236 results about "Remanufacturing" patented technology

The invention belongs to the technical field of permanent magnetization remanufacturing, and particularly relates to a permanent magnetization regeneration method for a waste motor of copper alloy wire processing equipment, and the method comprises the steps: disassembling a waste asynchronous motor, and reserving a case, a stator, a rotor core and a rotating shaft which are not damaged; the specifications of the air injection channels are determined according to the diameter of the rotating shaft, more than two air injection channels are arranged on the rotating shaft at equal-angle intervals, and then the rotating shaft is installed in the machine shell; the rotor core is split to obtain steel sheets, and permanent magnet grooves, magnetic isolation air grooves and air injection channel grooves are formed in the steel sheets; the permanent magnets are assembled in the permanent magnet grooves, then the steel sheets are laminated according to a first rule to obtain a rotor, and then the rotor is assembled to the rotating shaft; a rear end cover of the machine shell is removed, a heat dissipation machine cover is manufactured according to the diameter of the rear end cover, a bearing groove and an air outlet hole are formed in the heat dissipation machine cover, and then the heat dissipation machine cover is assembled to the machine shell; and a frequency converter is additionally arranged on the shell. The remanufactured permanent magnet synchronous motor manufactured by the method has better sealing performance and heat dissipation performance.

The invention provides a full-laser multi-energy-field remanufacturing device and method, and relates to the technical field of laser cladding remanufacturing, and the full-laser multi-energy-field remanufacturing device comprises a laser system, an energy field auxiliary system, a powder conveying system, a monitoring system and an intelligent management and control system; the energy field auxiliary system comprises a magnetic field generation unit and an ultrasonic vibration unit; the monitoring system is used for collecting multi-source sensing data reflecting the state of the molten pool in real time; the intelligent management and control system comprises a machine learning digital twinning module used for acquiring historical process data and receiving and performing analysis and prediction based on multi-source sensing data and the historical process data so as to generate a dynamic cooperative control instruction; and the numerical control execution module is used for receiving the control instruction and performing real-time feedback adjustment on the technological parameters of the laser system and the technological parameters of the magnetic field generation unit, the ultrasonic vibration unit and the powder conveying system according to the control instruction. And real-time and dynamic collaborative feedback regulation and control on a plurality of process units such as laser, a magnetic field, an ultrasonic field and powder feeding are realized.

The invention discloses a man-machine collaborative additive repairing and remanufacturing method based on multi-modal perception, and belongs to the technical field of intelligent manufacturing and additive manufacturing, and the man-machine collaborative additive repairing and remanufacturing method comprises the following steps: S1, based on an additive repairing environment of a damaged part, establishing a three-dimensional grid map; s2, constructing a three-dimensional damage model based on the damage morphology data acquired by the multi-modal data acquisition module; s3, based on the three-dimensional damage model, a planned repair path and matched technological parameters thereof are obtained; and S4, based on the planned repair path, the repair equipment performs additive repair on the damaged part. According to the method, the additive repair environment three-dimensional grid map system is constructed, the repair environment and the damaged part are subjected to multi-angle scanning, and the visual sensor is synchronously adopted to collect the three-dimensional shape data of the damaged part, so that the sub-millimeter-level cooperative positioning of the repair equipment operation space and the damaged area is realized; and an accurate three-dimensional space reference is provided for subsequent repairing operation.

The invention discloses a welding seam detection remanufacturing system and device for a hydraulic support, particularly relates to the technical field of mining equipment remanufacturing, and is used for solving the problems of secondary stress migration and base material cracking caused by local heat input during in-situ repair of a box type structural part. A data acquisition module is used for acquiring contour coordinates of a repair area and thickness distribution of base metal; the unit division module divides a stress buffer unit containing a heat input regulation and control subarea based on the thickness gradient and the rib plate layout; the boundary redivision module dynamically optimizes the subarea boundary through geomagnetic field gradient scanning; the heat shock control module executes layered repair welding and activates subarea heat input in sequence; the energy ratio monitoring module switches the activation sub-regions in real time according to the acoustic emission energy ratio to block microscopic plastic deformation; the stress processing module eliminates a migration stress peak value through external expansion area residual stress scanning and local thermal relaxation; the whole-process regulation and control of the stress evolution in the repairing process are realized, and the repairing safety and the service life of the box type structural member are guaranteed under the immovable working condition.

The invention belongs to the technical field of remanufacturing process, and discloses a digital twin-driven reprocessing scheduling optimization method, which comprises the following steps: initializing and generating a reprocessing initial scheduling scheme in a physical workshop, and moving the reprocessing initial scheduling scheme to a third window of a virtual workshop; based on a rolling window mechanism, moving the task which is being reprocessed currently and the task which is about to be reprocessed from the third window to the second window; if it is detected that the emergency task is inserted, all reprocessed tasks in the second window are moved to the first window; moving the emergency task to a second window; based on the target function of minimizing the total cost and the total time, a whale optimization algorithm is adopted for solving, and rescheduling schemes of all tasks in the second window are obtained; and sending the rescheduling scheme to the physical workshop for execution until no task needing rescheduling exists in the third window. According to the method, insertion of emergency tasks is considered, and rescheduling and response efficiency are considered.

The invention provides a remanufacturing workshop scheduling method based on reinforcement learning and evolutionary algorithm fusion, relates to the technical field of production scheduling optimization, and solves the problem of remanufacturing system scheduling in three stages of disassembly, reprocessing and assembly. A four-dimensional decision model covering process sorting, factory distribution, machine selection and speed gear scheduling is constructed, and an initial population with diversity and high-quality characteristics is generated by adopting a multi-strategy hybrid initialization method. A reinforcement learning decision module based on Q-learning is introduced, an optimal combination is dynamically selected from various crossover operators, mutation operators and neighborhood search strategies, the crossover probability and the mutation probability are dynamically corrected according to the distribution characteristics of the Pareto leading edge, and a dual escape mechanism is integrated to enhance the capability of the algorithm to jump out of local optimum. According to the scheme, the group search advantage of the evolutionary algorithm is exerted, the dynamic optimization of the search process is realized, and an efficient and accurate scheduling solution is provided for a complex remanufacturing system.

The invention relates to the technical field of metal material surface engineering and equipment remanufacturing, in particular to an early acoustic emission diagnosis and laser cladding repair method for thermal fatigue cracks in a mold service process, which comprises the following steps: S1, synchronously acquiring and preprocessing multi-source heterogeneous data; stress wave signals are collected in real time through a broadband acoustic emission sensor array permanently integrated on the surface of a mold cavity, the frequency response range of the sensor is 100 kHz to 1 MHz, and the sensitivity is not lower than 95 dB. According to the method, accurate identification and positioning can be realized at the initial stage of crack initiation through multi-modal sensing fusion and a deep learning algorithm, the diagnosis accuracy is remarkably higher than that of a traditional offline detection method, and precious time is won for subsequent repair.

The invention is suitable for the technical field of remanufacturing of key parts of aero-engines and gas turbines, and provides a laser strengthening composite cladding high-performance repairing method for an engine supporting plate. Comprising the following steps of pretreatment and damage evaluation, uncoated laser shock peening pretreatment, composite cladding material design and preparation, coaxial powder feeding laser cladding repair, post-treatment and performance recovery and final inspection and performance evaluation. According to the method, by means of a synergistic structure of coating-free LSP pretreatment and laser cladding, a pre-compressive stress layer pre-constructed on a base body is pretreated, tensile stress generated by rapid heating and cooling in the cladding process can be effectively counteracted, and crack initiation and extension of the interior of a cladding layer and a bonding interface are inhibited from the source; meanwhile, thermal stress accumulation is further reduced through partition staggered scanning and interlayer temperature control in S4, and the crack rate of a repaired area is remarkably reduced through the dual effects; performing performance transcendental recovery; and the method is pollution-free, high in reliability and good in manufacturability.

The application discloses a WC reinforced tin-based babbitt alloy composite coating and an ultrahigh-speed laser cladding preparation method thereof, and belongs to the technical field of laser additive manufacturing and surface engineering. The coating is composed of WC particles and a SnSb11Cu6 matrix, the WC particles are uniformly and dispersedly distributed in the matrix, and the coating is free of cracks and through pores. The preparation method comprises the following steps: mixing WC particles with SnSb11Cu6 powder, drying, and then cladding on a 20 steel matrix by using an ultrahigh-speed laser cladding (EHLA) technology. Compared with a pure babbitt alloy coating, the hardness of the coating is increased by 45%, and the wear rate is reduced by 37%, the hardness and wear resistance are simultaneously improved, and the WC particle agglomeration and excessive melting are avoided, so that the coating is suitable for surface strengthening and remanufacturing of sliding bearing bushings.

The invention relates to the technical field of flange laser cladding, in particular to a flange inner wall laser cladding process parameter optimization method which introduces a least square method model containing a time-varying weight coefficient on the basis of a traditional response surface method. A dynamic response model is constructed on the basis, and the process parameters are dynamically adjusted by considering the interaction influence of the parameters in the optimal process parameter combination and the change trend of the interaction influence of the parameters along with time while the optimal process parameter combination can be obtained; compared with a traditional response surface method, the method has the advantages that the interaction weight coefficient of each parameter in the model can be dynamically adjusted along with the time change, and the optimization accuracy of the laser cladding parameters of the flange is improved. And an efficient and reliable remanufacturing solution is provided for flange repairing and strengthening in the deep sea high-pressure and high-corrosion environment, and the method has important engineering application value.

The invention relates to a hydraulic cylinder surplus value determining method, device and system, a medium and a program product. The method for determining the surplus value of the hydraulic cylinder comprises the steps that on-site collection information of the waste hydraulic cylinder is obtained, and the on-site collection information comprises at least one of the working state of the hydraulic cylinder, fault phenomenon description and surface defects; fault information of the waste hydraulic cylinder is determined according to the field collection information of the waste hydraulic cylinder, and the fault information comprises a top event fault and a bottom event fault; according to the fault information of the waste hydraulic cylinder, the maintenance and remanufacturing grade of the waste hydraulic cylinder is determined; and according to the maintenance and remanufacturing grade of the waste hydraulic cylinder, the residual value of the waste hydraulic cylinder is determined. According to the invention, the method achieves the evaluation of the residual value of the waste hydraulic cylinder, and provides a technical basis for the recycling strategy and pricing of old parts.

A fuel injector sleeve for use in a remanufactured engine includes an elongate sleeve body including a clamping shoulder facing an axial direction and forming an undercut, and a sealing ridge transitioning between the undercut and an outer sleeve surface. The sealing ridge defines a sealing line radially outward of the undercut and extending circumferentially and uniformly around the longitudinal axis. The sealing line provides line contact between the sleeve and a clamping surface of a cylinder head to form a seal outboard of erosion upon the clamping surface from prior service. Related apparatus and remanufacturing methodology is also disclosed.

This invention relates to the field of laser cladding technology, specifically to a broadband coaxial laser cladding equipment, comprising a protective shell with a nozzle module fixedly connected to its surface; and a feeding module fixedly connected to the surface of the protective shell for directional conveying of a metal sheet, the metal sheet passing through the inner side of the nozzle module. This invention, by incorporating a spot shaping component, can convert a circular laser spot into a rectangular spot. Furthermore, by combining the metal sheet as the cladding material, compared to traditional circular spot and metal powder cladding methods, it effectively increases the width of a single cladding pass and the scanning coverage area per unit time. This effectively solves the problems of excessively long process cycles and low processing efficiency in the manufacturing and remanufacturing of large parts, achieving large-area rapid cladding. Simultaneously, as the cladding material is a metal sheet, it avoids the problems of high surface roughness, low powder utilization, and severe environmental pollution caused by powder adhesion.

The present application relates to the technical field of complex shape remanufacturing, in particular to a complex shape remanufacturing method and material for a desulfurization circulating pump impeller, the complex shape remanufacturing method comprising constructing a multi-modal damage intelligent mapping; synchronously preparing plasma activation and micro-texture; performing energy field coupling cladding repair; performing stress field balance shot peening strengthening; implementing gradient coating self-propagating synthesis; performing thermal-mechanical coupling precision shaping; performing micro-gap pressure infiltration sealing; and performing multi-physical field service simulation verification. The present application can significantly prolong the service cycle of key components, comprehensively enhance the comprehensive performance of anti-cavitation and erosion resistance, establish a digital twin closed loop of damage diagnosis, repair optimization and life prediction, and simultaneously realize life cycle cost control and resource saving. Not only can the present application repair failed components, but also can it rebuild a sustainable operation system.

Typically, fluids used in fracking operations erode valve seats in the fluid end of the reciprocating pump. Thus, these valve seats must frequently be replaced by new valve seats. Accordingly, a remanufacturing process is disclosed that successively cleans and / or grinds manually or mechanically at least the carbide inserts from used valve seats until the inserts are reusable. This reduces material costs and promotes efficiency and sustainability.

The invention discloses a laser cladding process method for improving hardness, wear resistance and metallurgical bonding strength based on an S element, and belongs to the technical field of metal material surface modification. In the laser cladding process, the S-containing element powder is added into the mixed powder, so that the flowing mode of a molten pool is fundamentally converted, the phenomenon that the molten pool faces downwards is generated through the Malangori effect, the fusion depth of the molten pool is increased through the phenomenon, the bonding area of a cladding layer and a base body is increased, and the metallurgical bonding strength is enhanced; due to the fact that strong convection is generated in the molten pool, grains in the molten pool are refined, a fine hard phase is formed, the abrasion resistance and hardness of a cladding layer are enhanced, the service life of the cladding layer is prolonged, and the method is suitable for the field of remanufacturing and surface strengthening of industrial parts with extremely high requirements for surface abrasion resistance, impact resistance and coating bonding strength.

The application discloses a kind of convex rib damage additive repair methods of warship sealing frame, belong to laser additive remanufacturing technical field.The convex rib damage additive repair method of the application is divided into four parts of pretreatment, repair forming, post-processing, inspection, and repair forming is divided into straight edge laser cladding, circular arc angle pulse argon arc surfacing, and pulse argon arc surfacing is interval surfacing in partition, the plane of convex rib circular arc angle is divided into six groups of areas, first group area is carried out pulse argon arc surfacing according to the order of outer side, inner side and top surface of convex rib circular arc angle, then the second group area is carried out surfacing, and so on, until the outer side, inner side and top surface of convex rib circular arc angle are completely surfaced, and ensure that complete lap joint is realized between each area, to form corrosion-resistant layer;Interval surfacing in partition can minimize heat input to convex rib.The application can realize in-situ repair while ensuring that the substrate temperature is not higher than 100 DEG C.

This invention belongs to the field of additive remanufacturing technology, specifically relating to an optimization method and system for the additive remanufacturing process of brake discs for rail vehicles. The method analyzes the material properties of the brake disc substrate to obtain material property data, monitors the solidification front morphology of the molten pool in real time during the additive remanufacturing process, analyzes and infers the differences between the solidification morphology of the substrate and the molten pool based on these two sets of data, and optimizes and adjusts the additive remanufacturing process parameters according to the inference results. By accurately identifying the material properties of the substrate and combining real-time monitoring of the molten pool solidification front, this application can deeply analyze the underlying causes of local thermal anomalies in the molten pool, identify and correct specific problems such as insufficient or excessive laser energy, uneven laser spot energy distribution, or abnormal scanning paths, thereby achieving precise optimization and adjustment of the additive remanufacturing process parameters, providing a reliable and efficient solution for the additive remanufacturing of rail vehicle brake discs.

The invention discloses a processing method of a grenade warhead, belongs to the technical field of machining, and solves the technical problems that the outline is limited, materials are wasted and a die is easy to scrap when the grenade warhead is stamped by a traditional integrated cylindrical lower die. The stamping die comprises an upper die and a lower die, the lower die comprises a left die block and a right die block which are split in half along the axis, and a die cavity matched with the outer contour of a target grenade warhead is formed after the left die block and the right die block are closed. According to the invention, the punching processing of complex contour products with equal diameters, large lower parts and small upper parts in one die cavity can be realized by twice punching and hole forming, so that the heat loss caused by die cavity replacement is avoided, the contact time length of the punch and a blank is reduced, the punch is prevented from being quenched and tempered, the subsequent machining amount is also greatly reduced, and the processing procedure is simplified; and meanwhile, the detachable lower mold is convenient to repair, the mold cavity can be remanufactured through machining, the upper mold can be repaired through the cladding welding technology, and then repeated repair and utilization of the mold are achieved.

This invention discloses a laser cladding method for the inner wall of a brake drum, belonging to the field of laser cladding technology. The method specifically includes: horizontally clamping the brake drum, keeping its gray cast iron inner wall axially horizontal, and positioning a laser cladding head inside the brake drum and above its central axis; performing laser cladding using a synchronous powder feeding method, controlling the laser cladding head to translate along the axial direction of the brake drum while simultaneously rotating the brake drum around its axis, thereby forming a continuous spiral coating on the inner wall surface of the brake drum. This invention breaks through the traditional single mode of surface strengthening of gray cast iron that relies solely on welding or spraying, and can adaptively combine with heat sources such as laser cladding to construct a multi-layer interface with gradient composition / structure, providing a universal platform for the industrially scalable development of long-life, low-carbon remanufactured brake drums.

The invention provides a disassembling device for automobile part remanufacturing and recycling, and relates to the technical field of scraped automobile part disassembling, the disassembling device comprises a working platform, the working platform is provided with an overturning mechanism for overturning scraped automobile parts by 360 degrees, and the overturning mechanism internally comprises an annular overturning frame; the turnover mechanism comprises an annular turnover frame and a working platform, the annular turnover frame is rotatably installed on the working platform, and a power assembly for driving the turnover mechanism is arranged in the working platform, the annular turnover frame is rotatably installed on the working platform, and the power assembly composed of a servo motor, a rotating shaft, a horizontal gear and an annular gear is arranged; the servo motor controls the main control electric cabinet to drive the rotating shaft to rotate, then the horizontal gear rotates, the annular gear meshed with the horizontal gear drives the annular overturning frame to rotate by 360 degrees, and compared with the prior art that only rotation can be achieved, all parts of the scrapped vehicle can be disassembled more easily, and disassembling convenience is greatly improved.

Disclosed is an evaluation system for remanufacturing of a battery system, the evaluation system including a charger / discharger connected to the battery system and used to charge and discharge the battery system; and an electronic device connected to the charger / discharger, receiving data about the battery system from the charger / discharger, and evaluating a remaining lifespan of the battery system based on the received data, wherein the electronic device selects at least one of a regular method and a simple method based on an input of a user, and evaluates a remaining lifespan of the battery system according to the at least one method selected above.

The invention discloses a method for laser additive remanufacturing of a wear-resistant alloy-polyurethane composite layer scraper, and belongs to the technical field of scraper remanufacturing. After the surface of the waste scraper is treated, surface three-dimensional shape scanning is carried out, three-dimensional shape data of the scraper are obtained, then the three-dimensional shape data are compared with the size of a new scraper of the same specification, and the additive machining amount of the to-be-repaired part of the scraper is determined; depositing a wear-resistant alloy layer on the repaired part of the scraper by using laser additive equipment; and after the surface of the alloy layer is treated, the alloy layer is coated with a polyurethane elastomer coating, and the wear-resistant alloy-polyurethane composite layer scraper blade is obtained. According to the remanufacturing method for the waste scraper, the use function of the scraper failed due to abrasion can be recovered, abrasion to a chute and a ledge of a scraper conveyor is reduced while better abrasion resistance is achieved, and the service life of equipment is prolonged.

This invention discloses a robust optimization-based dynamic scheduling method for remanufacturing workshops, comprising a pre-scheduling stage and a dynamic scheduling stage. In the pre-scheduling stage, a discrete scenario set is used to describe the arrival and processing times of jobs in the remanufacturing workshop. A robust optimization objective function is established based on minimizing the completion time of the pre-scheduling scheme and the difference in completion time under different scenarios. A biogeographical optimization algorithm is used to output the pre-scheduling scheme. In the dynamic scheduling stage, if a disturbance event occurs, the pre-scheduling scheme is used as the input scheme, and a job right-shifting and rescheduling strategy is executed to obtain the dynamic scheduling scheme. If the dynamic scheduling scheme is equal to or does not dominate the input scheme, the dynamic scheduling scheme is output; otherwise, a dynamic scheduling objective function is established by minimizing efficiency and robustness indices, and a biogeographical optimization algorithm is used to output the dynamic scheduling scheme. This invention considers the problems of multiple uncertainties and the impact of disturbance events, resulting in a better scheduling scheme.

The utility model discloses 3D printing remanufacturing equipment for damaged parts, and relates to the technical field of 3D printing, the 3D printing remanufacturing equipment comprises a shell, the top end of the shell is provided with a material inlet, a crushing mechanism is arranged in the shell, the bottom end of the shell is connected with a heating mechanism, and a material guide plate is fixedly arranged at the joint of the shell and the heating mechanism; the heating mechanism comprises a heating box, a heating base is arranged at the bottom of the heating box, an operation panel is fixedly installed on the front face of the heating base, and a stirring mechanism is installed on one side of the heating box. Through the arrangement of the heating mechanism, waste parts can enter the heating box after being smashed, waste materials in the heating box are heated and melted through the heating base, remanufacturing of subsequent materials is facilitated, and the problems that according to existing equipment, the materials need to be additionally heated and dissolved subsequently, and material recycling cannot be directly achieved are solved.

The invention discloses an additive process parameter planning method and device for defect repair welding. The method comprises the following steps: acquiring point cloud information of a repair welding position of a target workpiece and a pre-planned automatic repair welding path; and based on the automatic repair welding path, generating a segmentation surface passing through the path point, and based on the point cloud information, recovering the lost step format digital model by using a reverse reconstruction method, so that the generated segmentation surface is used for segmented cutting, and then the welding process parameters are dynamically matched according to each cut sub-model. According to the method, the complicated pretreatment simulation and training process is avoided, the process response speed is remarkably increased, good adaptability is achieved, and variable, non-standard and high-complexity repair welding objects in remanufacturing can be effectively handled.

The invention relates to the technical field of shield tunneling machines, and particularly discloses a shield hobbing cutter ring and a remanufacturing method thereof. According to the method, the iron-based alloy powder serves as a main body, the modified powder is added as an auxiliary, the remanufactured alloy powder is obtained, the alloy deposition layer is formed on the surface of the cutter ring body through the remanufactured alloy powder, and remanufacturing machining of the shield hob cutter ring is completed. Under the synergistic effect of the components of the modified powder, the alloy deposition layer can have good hardness and wear resistance, the defects of iron-based self-fluxing alloy are overcome, the defects of the remanufactured and repaired cutter ring in the tunneling process are reduced, and various extreme service conditions can be fully dealt with.

The utility model discloses a cleaning device with an anti-blocking function for engine remanufacturing part processing, which belongs to the technical field of engine remanufacturing part processing and comprises a cleaning box, a servo motor is fixedly connected in the cleaning box, and the output end of the servo motor is fixedly connected with a driving wheel. According to the cleaning device with the anti-blocking function for engine remanufactured part machining, when water needs to be drained, when waste water is drained into a shaking body, a servo motor rotates to drive a driving wheel to rotate, the driving wheel rotates in a shaking groove, a shaking block is pushed to move back and forth, and therefore the shaking block shakes left and right; at the moment, the shaking body can be driven by the shaking block to shake left and right, and meanwhile, the wastewater enters the water storage box through the filtering holes, so that the wastewater and particle impurities are conveniently distinguished, and the particle impurities and the wastewater are prevented from being discharged at the same time to cause blockage of the drainage pipe.

This invention belongs to the field of die casting technology, specifically relating to a high-performance Fe-based laser cladding treatment method for the surface of a ductile iron die casting machine template. The method includes the following steps: selecting a substrate and a metal powder to be laser clad; the substrate is a QT500-7 ductile iron die casting machine template, and the metal powder is Fe60 alloy powder; setting parameters for the laser cladding system, including laser power, scanning speed, spot diameter, defocusing amount, powder feeding speed, and overlap rate; performing cladding; and selecting a corresponding tempering process based on the actual service conditions of the QT500-7 ductile iron die casting machine template. This invention, for QT500-7 ductile iron, uses lower-cost Fe-based alloy powder to replace expensive Ni-based alloy powder, and after tempering, the cladding layer exhibits excellent comprehensive performance, with a bonding strength close to that of the substrate and excellent corrosion resistance, significantly reducing the remanufacturing cost of the die casting machine template.