51 results about "Remanufacturing" patented technology

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 belongs to the field of remanufacturing scheduling, and discloses a remanufacturing job shop robust scheduling method and device considering carbon emission constraints, which comprises obtaining machine information and workpiece information of a remanufacturing job shop, taking minimization of expected total cost and cost deviation as an optimization target, introducing carbon emission constraints, and constructing a robust optimization model containing a discrete scene set; a particle swarm optimization algorithm is used to solve the robust optimization model to obtain an optimal remanufacturing scheduling scheme, and the solution of the particle swarm optimization algorithm is represented by a process-based encoding sequence, wherein each element in the process-based encoding sequence is a positive integer, the numerical value represents a workpiece number, and the number of occurrences of the same numerical value represents a process number. The present application considers the mutual influence between uncertainty factors in actual production and dynamic carbon cost, solves the remanufacturing job shop robust scheduling problem under carbon emission constraints, and improves the accuracy and robustness of remanufacturing job shop scheduling.

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.

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.

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.

The application relates to the field of repair and remanufacture, and discloses a friction stir repair method based on high-combination joint design, which is used for realizing high-combination design of a material filled in a repair area and improving the overall mechanical properties of a repair joint. The method is as follows: I. preparing high-combination filling powder according to the material of a workpiece; II. opening a straight blind hole according to the size of a defect; III. determining the size of a stir head; IV. inserting the stir head into the blind hole to compact the filling powder; V. rotating and pressing the stir head to solidify the filling powder; and VI. repeating steps IV and V to complete the filling and welding process of the defect. The application has the beneficial effect that, based on the design of the high-combination joint, the weakening effect of a heat affected zone in a repair interface area can be reduced through the strengthening effect of the filled composite material, so that the purpose of strengthening the mechanical properties of the repair joint is achieved.

The additive repair method of the TC6 machine case threaded hole of the application belongs to the field of remanufacturing technology of key components of an aero-engine, and comprises the following steps: S1, initial processing is performed on the threaded hole to be repaired; S2, a gasket is prepared; S3, a lower clamping plate is placed on the platform of an additive process equipment, and additive process parameters are set; a laser head of the additive process equipment is placed in the inverted conical hole and laser deposition additive process treatment is performed from the bottom of the conical gap, and the molten pool formed is gradually filled from the bottom to the top of the conical gap to complete the repair; S4, after the threaded hole to be repaired is repaired, heat treatment is performed, and the threaded hole to be repaired is detected by a fluorescence penetration detection method to check whether there is a crack, and by an X-ray detection method to check whether there is an unfused defect; after the threaded hole to be repaired is detected to be free of cracks and unfused defects, milling of the threaded hole is performed in the inverted conical hole according to a standard process, and the gasket is removed, thereby improving the repair efficiency.

In a remanufacturing regulatory compliance method, information describing maintenance performed on or scheduled to be performed on a medical device is received. One or more modified device metrics are estimated for the medical device as modified by the maintenance. The modified device metrics are based on at least the received information describing the maintenance. A determination is made whether the maintenance constitutes remanufacturing of the medical device based on a comparison of the estimated modified device metrics to corresponding original equipment manufacturer (OEM) specifications for the medical device. In response to determining that the maintenance constitutes remanufacturing, output is directed regarding modifying the maintenance to not constitute remanufacturing or regarding complying with a regulation governing remanufacturing of medical devices including the medical device.

The utility model relates to a kind of special fixture of fully mechanized hydraulic support stand column laser cladding remanufacturing, including first clamping assembly and second clamping assembly, first clamping assembly includes base, fixed clamping assembly and mobile clamping assembly, base is fixedly arranged, fixed clamping assembly is arranged at one end of base, fixed clamping assembly is used to the fixed end clamping of hydraulic support stand column, mobile clamping assembly is arranged at the other end of base, mobile clamping assembly is used to the movable end clamping of hydraulic support stand column;Second clamping assembly includes guide block and isolation plate, guide block is movably arranged between fixed clamping assembly and mobile clamping assembly, isolation plate is mirror image configuration with two, all slidingly penetrate in guide block, and clamping groove is formed in isolation plate. Two clamping grooves pass through guide block can be tightly combined with the outer wall of the sliding column edge portion of hydraulic support stand column, block the metal powder after melting and flow to the sealing layer of sliding column and fixed column, guarantee the sealing property of hydraulic support stand column.

This invention relates to the field of seat belt bracket repair technology, specifically to a surface repair device for remanufacturing automotive seat belt brackets. The device includes a mounting frame, a clamping device, and a repair device. A support frame is slidably disposed within the mounting frame along its height. A rotating plate is rotatably disposed on the upper part of the support frame. Transmission components are respectively disposed on one side of the rotating plate and on the mounting frame. Locking devices are respectively disposed on the rotating plate and the transmission components. Two clamping wheels are symmetrically rotated on the mounting frame about the support frame, with the axes of the clamping wheels parallel to the horizontal plane. A drive device is disposed on one side of the clamping wheels. An activation device is disposed at the lower part of the support frame, and the activation device can be activated by a seat belt bracket placed on the support frame. A controller is disposed on one side of the activation device, and the activation device controls the operation of the drive device through the controller. This invention ensures that the seat belt bracket will not wobble or slip during repair and also facilitates the placement and removal of the seat belt bracket.

The application discloses a kind of high-entropy alloy c-BN composite coating of thin-walled part and preparation method thereof, belong to thin-walled part surface strengthening and remanufacturing technical field.The method includes: iron-based thin-walled part washing, drying, laying high-entropy alloy composite powder containing c-BN and Fe-Cr-Ni-Co high-entropy alloy powder, laser cladding, obtain composite coating.The method is aimed at the technical defects of large thermal deformation in the remanufacturing process of iron-based alloy thin-walled part and low hardness, insufficient wear resistance and corrosion resistance of remanufacturing coating, gradient powder laying design is adopted, and high-entropy alloy is cladded on the surface of workpiece by ultra-low laser energy.The composite coating effectively alleviates the problem of c-BN cladding oxidation in the atmosphere and the problem of large deformation of workpiece, has the performance of "high hardness wear resistance + self-lubricating + high toughness" synergy, can effectively protect the wear part, prevent the wear surface of wear part from being worn due to the hardness of coating, and can significantly increase the service life of the part.

This invention belongs to the field of workshop scheduling optimization, specifically involving a batch flow remanufacturing system scheduling optimization method based on a rework mechanism. It includes constructing a dual objective: minimizing the total completion time for remanufacturing all batches of scrap products and minimizing the total cost of remanufacturing all batches of scrap products. The total cost of remanufacturing all batches of scrap products includes: the energy cost of the disassembly workstation, the energy cost of the reprocessing subsystem, the energy cost of the reassembly workstation, the system's basic energy cost, and additional costs incurred by rework and scrapping. A weighting coefficient is introduced to transform the dual objective into a single objective, constructing a comprehensive objective function. This comprehensive objective function is used as the fitness function of the whale optimization algorithm. The optimal solution output by the whale optimization algorithm is the best scheduling optimization scheme. This invention significantly improves the overall operating efficiency and sustainability of the system while comprehensively improving the cost-effectiveness of the remanufacturing system.

The application belongs to the technical field of aeronautical engineering remanufacturing, and discloses a kind of aircraft remanufacturing data enhancement methods based on physical failure-bayesian deep learning fusion, which comprises the following steps: collecting multi-source heterogeneous data and preprocessing;Establish a multi-physics field coupled physical failure model, and construct a physical prior knowledge base;Build PoF-BGAN, and add the output of the physical failure model as a regular term to the loss function;Adaptive clustering and cross-modal mapping are used to realize multi-modal data alignment;Based on physical failure sensitivity analysis, edge fault samples are generated;From the statistical, physical and task dimensions, the generated data quality is evaluated and a feedback loop is established;The remanufacturing quality evaluation model is trained using the enhanced data set.The application solves the problems of fault sample scarcity, data heterogeneity, poor physical consistency of generated samples and missing extreme working condition samples in the field of aviation remanufacturing, and provides high-quality data support for remanufacturing quality evaluation and process optimization.

A remanufactured yoke (400) for a fuel pump (200) includes a body (404) having a base (406) and sidewalls (408) extending orthogonally from the base (406). The base (406) and sidewalls (408) together define a receiving space (410). The sidewalls (408) define an inner surface (424) facing the receiving space (410) and an outer surface (426) opposite to the inner surface (424). The remanufactured yoke (400) also includes a wear plate (436) removably disposed within the receiving space (410) defined by the base (406) and sidewalls (408). The wear plate (436) contacts the base (406) of the body (404). The remanufactured yoke (400) also includes a connecting member (414) that is connected to the body (404) and the wear plate (436) to prevent the wear plate (436) from rotating relative to the body (404).

This invention discloses an intelligent optimization method for green remanufacturing process parameters of formed teeth, relating to the field of gear repair technology. The method includes: acquiring the 3D point cloud of the formed tooth workpiece, design tooth profile reference data, material heat treatment information, and damage area detection data; constructing a remanufacturing feasible domain and generating an allowable margin window; establishing a coupled process parameter model covering patch forming and finishing based on the remanufacturing feasible domain and the allowable margin window, and solving for the initial parameter set; performing patch forming and finishing in partitions according to the initial parameter set, and correcting local process parameters based on the comparison results of measured and predicted states; and performing feedback write-back based on the final quality judgment results and process records. This invention achieves cross-process collaborative control driven by real defect geometry, improves the consistency of final tooth profile restoration and process stability, and takes into account unit repair energy consumption, patch overflow volume, and secondary removal volume constraints.

The present application belongs to the field of automobile remanufacturing and advanced maintenance process, and particularly relates to a flexible repairing method for automobile leaf plate based on reversible thermoplastic mold, which comprises the following steps: step S100, digitizing reference surface: obtaining original surface data of automobile leaf plate through 3D scanning to generate a digital reference model; step S200, rapid generation and circulation of customized mold: material selection and pretreatment, flexible heat treatment, surface negative pressure / pressure covering plastic forming, rigidification cooling and shaping, mold resetting; step S300, clamping and in-mold precise shaping repair: using a pneumatic hammer to perform impact repair under the precise constraint of the mold; step S400, post-processing and quality verification: disassembling the mold and performing quality inspection on the repaired leaf plate; the present application realizes rapid customization and unlimited resetting of the mold by using the reversible thermoplasticity of PCL, and realizes efficient, high-precision and low-cost repair of automobile leaf plate sheet metal damage.

This invention relates to a method for surface modification of key friction pairs in internal combustion engines based on laser cladding and diamond-like carbon (DLC) composite coatings, belonging to the field of surface strengthening and remanufacturing technology for key internal combustion engine components. Two functional transition layers are sequentially prepared on the substrate of the key friction pair using laser cladding technology: first, a Ni60-Cu alloy layer is clad as a toughness buffer layer to alleviate thermal stress and improve the bonding strength with the substrate; then, a WC particle-reinforced Ni-based alloy layer is clad as a reinforcing support layer to provide a high-hardness substrate; after polishing the cladding layers, a DLC coating is prepared on the polished surface using cathodic arc deposition. This invention solves the problems of weak adhesion and easy peeling of DLC coatings on gray cast iron through a gradient material design and sequential process of toughness buffering, reinforcing support, and ultra-hard friction reduction. The prepared friction pair possesses high interfacial bonding strength, excellent fatigue resistance, and friction-reducing and wear-resistant properties, extending the service life of the friction pair under harsh operating conditions.

The packaging box comprises a bearing body and an outer barrel body, a non-circular lock head is arranged at the top of the bearing body, and the lock head can rotate relative to the bearing body; the outer barrel is provided with an opening for the bearing body to enter and exit, and a top plate of the outer barrel is provided with a lock opening for the lock head to penetrate through. And when the lock head penetrating through the lock opening is rotated to a preset range, the lock head and the lock opening are staggered, so that the top plate prevents the lock head from retreating from the lock opening. The packaging box is simple and novel in structure, after the lock head on the bearing body penetrates through the lock opening of the outer barrel body, the lock head is rotated to enable the lock head and the lock opening to be staggered, locking of the bearing body and the outer barrel body can be achieved, all parts of the whole packaging box can be made of paper materials, magnets are not needed, the manufacturing cost of the packaging box is reduced, and the packaging box is convenient to use. And the packaging box can be recycled and remanufactured more conveniently, and the recycling cost of the packaging box can be reduced. In addition, the packaging box has the advantages of being capable of being opened and closed repeatedly and long in service life.

The present application relates to the technical field of metal component additive repair, and particularly relates to a hydraulic turbine guide vane repair remanufacturing method based on electric arc additive, which adopts a process of electric arc additive combined with mechanical vibration energy field, acquires acceleration and temperature signals in real time during deposition, and adjusts vibration parameters and dynamically controls heat input to stabilize interlayer temperature in a closed loop and self-adaptively; in-situ depth cooperation of the energy field and the temperature field makes continuous mechanical vibration kinetic energy strongly break coarse ferrite dendrites; controlled interlayer cooling rate effectively blocks secondary growth of small crystal nuclei, which greatly releases constraint thermal stress of the multilayer stacked repair area, makes microstructure into extremely short strip or point structure, greatly reduces macroscopic warping deformation in the repair process, and finally gives the hydraulic turbine guide vane excellent strength and toughness matching and long-term service safety and reliability.

This application relates to the field of intelligent supply chain management, providing a method, apparatus, equipment, and medium for optimizing material flow in a circular supply chain. The method includes: collecting multi-source heterogeneous data; semantically parsing recycled product quality inspection reports using a Large Language Model (LLM) and generating a quality vector characterizing the remanufacturing potential of recycled products by combining physical imaging analysis results; constructing a dynamic cost matrix including tariff weights, transportation cost fluctuation factors, and carbon emission compliance costs by integrating real-time cross-border logistics cost information and environmental and tariff regulations using a dynamic modeling module; inputting the quality vector and dynamic cost matrix into a multi-objective optimization engine to generate a Pareto optimal solution set for remanufacturing center location selection and dynamic material flow scheduling, under the conditions of satisfying preset refurbishment rate thresholds, total cost constraints, and regional compliance; and dynamically adjusting the logistics path and remanufacturing resource allocation strategy corresponding to the Pareto optimal solution set in response to external environmental changes, achieving closed-loop optimization.

The application discloses a kind of high-throughput test methods for fatigue resistance of additive remanufacturing axle, comprising: establishing the finite element model of full-size axle-wheel assembly, taking the characteristic stress value of the target additive remanufacturing area on the surface of additive remanufacturing axle under the load condition required by full-size axle performance test specification;Establish the finite element model of test sample and prepare the test sample;The upper surface and the lower surface of the test sample are respectively symmetrically provided with two test sections, and unloading grooves are respectively formed on the two sides of each test section;Loading simulation is carried out on the test sample model, and the displacement value of the test sample model is determined when the determined characteristic stress value is reached;The determined displacement value is used as the core displacement control parameter, the actuator of the fatigue testing machine is used to apply alternating load with a stress ratio of-1 to the test sample to simulate the rotary bending stress state of the axle, and the test of the test sample is carried out.

The present application belongs to the technical field of mining equipment management, and aims to solve the problem that the existing management means cannot provide standardized, digitized, traceable and quantifiable system support for the remanufacturing of excavator-anchor integrated machines. A remanufacturing online management system for excavator-anchor integrated machines is provided, which comprises a device information management module, a device duration management module, a device accessory management module, a maintenance man-hour management module, a maintenance process selection module and a permission management module. The present application integrates the information of devices, components, accessories, duration, process, personnel man-hours and the like in the whole process of remanufacturing of excavator-anchor integrated machines, realizes cloud storage and real-time synchronization of information based on B / S architecture, and designs a dual storage mode of local cache + cloud synchronization and industrial-grade lightweight optimization, which is suitable for complex scenarios in workshops, solves the problems of information dispersion and untimely updating in traditional management methods, realizes information interconnection in each management link, and improves the collaborative efficiency of the remanufacturing process.

This invention discloses a method and system for upgrading and remanufacturing a water system for a mixing plant to prevent rust and corrosion. The method includes: system assessment, isolation, and venting; combined physical and chemical cleaning; sandblasting of the inner wall to Sa2.5 grade with controlled anchor pattern depth of 50-100μm; coating with a high-performance anti-corrosion coating meeting drinking water hygiene requirements and curing, with a dry film thickness of 150-300μm; replacing unsuitable pipe sections with corrosion-resistant materials such as UPVC and stainless steel; and performing pressure testing, water quality testing, and gravimetric flow meter calibration after system restoration. This invention, through an integrated solution of cleaning, treatment, and protection, thoroughly removes rust and scale from the inner wall of pipes and constructs a long-lasting inert protective layer, solving problems such as secondary water pollution, inaccurate metering, and frequent leaks caused by corrosion in existing water systems. It has significant effects in addressing both the symptoms and root causes, ensuring water quality, stabilizing metering, and being economical and environmentally friendly.

This invention discloses a laser cladding repair method for interface damage in titanium-steel composite plates based on a copper interlayer, belonging to the field of metal material remanufacturing. It constructs an evaluation system based on the sufficiency of copper-steel interface fusion, copper layer remelting rate, and interface residual stress. The optimal process window is determined using multi-layer dissimilar material multi-physics coupled finite element simulation to guide the repair. The process parameters for the copper interlayer are: laser power 2400-2800W, spot diameter 3.8-4.2mm, and scanning speed 400-500mm / min; the process parameters for the titanium filler layer are: laser power 1100-1300W, spot diameter 1.6-2.0mm, and scanning speed 700-750mm / min. This process blocks excessive diffusion of Fe-Ti elements, avoids the formation of brittle intermetallic compounds, and results in a dense interface structure with a shear strength of 270MPa, superior to the original titanium-steel composite plate shear strength and related standards.

This invention discloses a plasma atomization regeneration method and system for titanium alloy coarse powder based on powder rolling, belonging to the field of titanium alloy powder remanufacturing technology. The method involves constructing a coarse powder, after screening and purification, into an outer stable powder layer, an intermediate transition powder layer, and an inner liquid-releasing powder layer. This is then differentially compacted and rolled to form a gradient dense powder strip, followed by surface embossing and roll forming to obtain a hollow feed body with axial degassing channels. After low-temperature activation and shaping, the powder is continuously fed into a plasma atomization zone, with inert gas being blown internally simultaneously. This causes the ends to form annular molten liquid films, which are then broken and sphericalized to obtain regenerated spherical titanium alloy powder. This method improves the target particle size yield, sphericity, and flowability, and reduces the proportion of bubbly, hollow, and satellite powders. It is suitable for continuous high-value regeneration of titanium alloy coarse powder and is applicable to additive manufacturing, hot isostatic pressing, and powder metallurgy powder supply fields.

The utility model discloses a railway wagon body remanufacturing plasma cutting device, which belongs to the technical field of plasma cutting devices, and comprises a working vehicle, a welding system and a mechanical arm, and the top of the working vehicle is provided with a top seat; the welding system is arranged on the top of the working vehicle, the mechanical arm is located on the top of the top base, a plasma cutting machine is arranged at the tail end of the mechanical arm, an electric air cylinder connected with the mechanical arm is arranged on the top of the working vehicle, and guide wheels are arranged on the periphery of the bottom of the working vehicle. The transformer is arranged on the left side of the welding machine and the water-cooling machine, and the welding machine is arranged on the top of the water-cooling machine. According to the plasma cutting device for remanufacturing of the railway wagon body, through pre-measurement and marking, the cutting precision can be greatly improved, the process of assembling and secondary cutting is omitted, the bottleneck procedure passing capacity is improved, the plate matching quality is greatly improved, and a foundation is laid for follow-up automatic welding.

This invention discloses a method and a motor for remanufacturing an asynchronous motor into a synchronous reluctance motor, relating to the field of motor remanufacturing and solving the problem of high-efficiency remanufacturing of asynchronous motors. This invention disassembles and recycles most of the materials from old, low-efficiency asynchronous motors, retaining the stator assembly and several accessories. New synchronous reluctance rotor laminations are manufactured and reassembled with the original asynchronous motor's stator assembly and accessories. The newly manufactured synchronous reluctance rotor laminations are equipped with several air grilles. This invention can improve the energy efficiency level of the original motor, achieving the performance of a high-efficiency motor. This technical method can improve the operating efficiency of old motors and make full use of existing materials, significantly reducing costs compared to purchasing a new high-efficiency motor, thus lowering the investment costs for users upgrading to high-efficiency motors.