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85 results about "Batch fabrication" patented technology

Multistage micro-fluidic chip and chip production mold

The utility model relates to the technical field of microfluidics, and discloses a multi-stage micro-fluidic chip, which at least comprises a first-stage collision fluid channel and a second-stage collision fluid channel, and a mixing channel of the upper-stage fluid channel is arranged as a premixing fluid channel of the lower-stage fluid channel; the first-stage collision fluid channel comprises a first premixed fluid channel and a second premixed fluid channel, a first-stage fluid collision channel is arranged between the first premixed fluid channel and the second premixed fluid channel, and the first-stage fluid collision channel enters the second-stage premixed fluid channel after collision; a second-stage fluid collision channel is arranged between the third premixing fluid channel and the fourth premixing fluid channel, and the second-stage fluid collision channel enters the mixing channel after collision. The multi-stage micro-fluidic chip has the advantages of high mixing efficiency, low shear damage, easiness in integrated packaging and batch manufacturing and the like, and the micro-fluid mixing performance and the system practicability are remarkably improved.
Owner:GUANGZHOU NANOFLUIDIC TECHNOLOGY CO LTD

Surface type correcting and processing method of aspheric lens

The invention relates to a surface type correction and processing method of an aspherical lens, which comprises the following steps of: changing a radial point location of a polishing disk participating in cutting by adopting a rotary polishing disk and lens tangent layout and through three-axis linkage of numerical control X-axis radial feeding, numerical control B-axis swinging and Z-axis approaching movement, and forming differentiation by utilizing the linear velocity gradient of the disk to remove redundant materials of the lens; and surface shape error differential correction is realized. According to the method, the polishing head does not need to be frequently replaced, over-polishing / under-polishing of traditional air bag polishing is eliminated, and the single-piece machining time is shortened; an air bag structure is omitted, the service life of consumables is prolonged, and batch fluctuation is reduced; accumulative errors are reduced through three-axis linkage, and medium-high frequency ring belt errors are restrained. The matched processing method comprises the steps of initial forming, detection, planning, correction and the like, can be quickly adapted to lenses of multiple specifications, and efficiently completes high-precision batch manufacturing of medium and large-caliber aspheric surfaces.
Owner:YANGZHOU ZIWANG YOUWEI TECH CO LTD

Curing shrinkage compensation and forming precision control method and system for 3D printing

The invention discloses a curing shrinkage compensation and forming precision control method and system for 3D printing, and relates to the technical field of 3D printing additive manufacturing, and the method comprises the steps that three-dimensional model data and printing process parameters of a to-be-formed part are obtained, and a compensation model is established and called; generating hierarchical data according to the three-dimensional model and generating target exposure information of each layer; in the printing process, target exposure information is corrected based on the compensation model and the technological parameters to obtain execution exposure information, and curing forming is completed; acquiring an intra-layer image and comparing the intra-layer image with layered data to calculate a deviation field of the current layer; and updating the compensation model according to the deviation field increment, generating a next layer of compensation quantity, and circulating until forming is completed. A deviation field is adopted to drive closed-loop updating, self-adaptive convergence of working condition drifting is achieved, critical dimension consistency, boundary fidelity and shape stability are improved, test participation experience dependence is reduced, three-dimensional collaborative correction according to contours, doses and beats is supported, and therefore repeatability of batch manufacturing of precision parts is improved.
Owner:HUNAN ELECTRICAL COLLEGE OF TECH

Tracing method for lamination alignment deviation of multi-layer composite circuit board

PendingCN121386987AMeasurement devicesInference methodsSensor arrayKnowledge based modeling
The invention discloses a multilayer composite circuit board lamination alignment deviation traceability method, which comprises the following steps of: acquiring process parameters such as temperature, pressure, tension and alignment images in real time through a distributed multi-mode sensor array, fusing time sequence process data, and extracting interlayer alignment deviation characteristics by combining image processing and a characteristic matching algorithm; modeling a propagation path of each error source based on a causal chain knowledge base, dynamically analyzing an error contribution degree by using a causal inference engine, and outputting an error traceability and sorting result with confidence; according to the type of the dominant error source, a corresponding parameter adjusting instruction is automatically generated and executed, closed-loop control is formed, rapid diagnosis and active compensation of interlayer alignment deviation are achieved, alignment precision and process reliability in the batch manufacturing process are improved, and the method has the capacity of dynamically adapting to working condition changes.
Owner:MEIZHOU HONGZHAN ELECTRONIC TECH CO LTD

Control system for radiopharmaceuticals

Techniques for monitoring a pharmaceutical manufacturing process and making determinations regarding the release of radiopharmaceuticals to health care providers. A data processing system collects data across multiple batches of radiopharmaceuticals, across multiple entities, and / or across multiple stages of the manufacturing process, processes the data, and provides feedback to entities involved in the manufacturing process. In scenarios where quality assurance tests are conducted, data is collected from radiopharmaceutical products before they are shipped, and the data is analyzed to provide the recipients with an indication of whether the radiopharmaceutical products satisfy quality assurance standards. Techniques for analyzing information about a batch manufacturing process and, when a problem occurred during a manufacture of a batch, determining whether to continue to manufacture a next batch in time for delivering and administering to a patient. The detected problem may be investigated and remedied before or during the synthesis of the next batch.
Owner:LANTHEUS MEDICAL IMAGING INC

Quality data evaluation method for multi-variety small-batch manufacturing process

PendingCN121258293AData processing applicationsData transformationIn process control
The embodiment of the invention discloses a quality data evaluation method for a multi-variety small-batch manufacturing process, and the method comprises the steps: 1, employing a tolerance coefficient method as a data conversion algorithm, and obtaining a tolerance utilization rate of a single monitoring characteristic; step 2, performing process capability evaluation on each monitoring characteristic, combining standardized data of multiple monitoring characteristics for single monitoring characteristics capable of accumulating the total sample number N and single monitoring characteristics incapable of accumulating the total sample number N so as to perform control process capability evaluation, and performing process control in an auxiliary single-value monitoring mode; and step 3, evaluating the control process capability in the step 2, and formulating a quality state evaluation criterion of multi-variety small-batch process control. According to the technical scheme provided by the embodiment of the invention, the problems of low accuracy of quality evaluation, difficulty in establishing an effective control model and control limit and the like of a quality control mode of multi-variety and small-batch products are solved.
Owner:QINGAN GROUP CO LTD

Perpendicularity measuring device for hole expansion rate sample

The utility model relates to the technical field of machining workpiece measurement, in particular to a perpendicularity measuring device for a hole expansion rate sample. A perpendicularity measuring device for a hole expansion rate sample comprises a mounting base, a measuring supporting rod and a measuring part, the mounting base is provided with a sample mounting position, the sample mounting position is provided with a positioning piece, the positioning piece is used for fixing the position of the sample on the sample mounting position, and the measuring supporting rod is arranged in the range of the sample mounting position. The measuring part comprises a measuring piece, a first adjusting piece and a second adjusting piece, the first adjusting piece is used for adjusting the position of the measuring piece in the extending direction of the sample pore channel, and the second adjusting piece is used for adjusting the distance between the measuring end of the measuring piece and the inner wall of the sample pore channel. The size change is small for single-specification and batch manufacturing, timely detection can be achieved after each batch of samples is machined, and the measuring device is simple, easy to manufacture, low in cost and high in measuring precision.
Owner:BEIJING SHOUGANG COLD ROLLED SHEET

Collaborative Robot Cutting System and Method

A collaborative robot cutting system for the assembly, construction, fabrication, and / or the completion of structural components for manufactured assemblies. A method of preparing work pieces and materials for further manufacturing operations employing the intuitive graphical interactive programming features of a robot cutting system user interface to enhance productivity and versatility in high mix, low volume fabrication environments with minimal operator training.
Owner:VECTIS AUTOMATION LLC

A fully automatic carbon filter filling device

The application provides a full-automatic carbon filter filling device, which comprises a base, a vertical shaft, a rotating shaft, a rotating disc, a supporting disc, a driving mechanism, a lifting mechanism, a first baffle, a second baffle and a stirring mechanism, the vertical shaft is vertically arranged on the base, the rotating shaft is sleeved on the vertical shaft, the driving mechanism is connected with the rotating shaft and used for driving the rotating shaft to rotate, the rotating disc is fixed on the rotating shaft, a plurality of filling holes are arranged on the surface of the rotating disc in a circumferential array with the center of the circle as the center point, and the supporting disc is arranged below the rotating disc. The two processes of distributing and stirring and filling are integrated on one work station and are automatically connected and completed through the continuous rotation of the rotating disc. After the filter shell is fixed, the filling step can be completed through one circulation, the production rhythm is shortened, and the application does not need to separately distribute and fill each filter shell, realizes high-efficiency production in a pipeline mode, and is very suitable for batch manufacturing.
Owner:FUJIAN SANXIN TECHNOLOGY GROUP CO LTD

Forming tool and preparation method of variable-thickness composite pipe fitting

PendingCN121424569ATubular articlesVariable thicknessPipe fitting
The invention provides a forming tool and a preparation method of a variable-thickness composite pipe fitting. In the tool, the two ends of a forming die are fixedly installed on supporting columns at the two ends through screws correspondingly; the profile surface of the forming die is arranged according to the profile surface of the inner wall of the composite material pipe fitting, and target heads are arranged in allowance areas of the two ends of the forming die respectively; in the paving process of the composite material pipe fitting, accurate positioning of a paving layer area is achieved through cooperation of the target head and the laser projection equipment; when the pipe fitting is demoulded, the demoulding assembly is mounted on a forming mould through the connecting piece so as to demould the pipe fitting, the annular top plate of the demoulding assembly is in contact with the end face of the formed composite material pipe fitting, and displacement is provided for the annular top plate through the fixing ring attached to the annular top plate, so that demoulding of the composite material pipe fitting is completed. The method solves the problems that variable-thickness pipe fittings are difficult in thickness control, multiple in wrinkles, easy to damage during demolding and the like, improves the product quality and the production efficiency, and is suitable for batch manufacturing of complex pipe fittings in the fields of aerospace, automobiles and the like.
Owner:AVIC XIAN AIRCRAFT IND GRP CO LTD

2.5 D optical waveguide chip and preparation method and application device thereof

The invention relates to a 2.5 D optical waveguide chip and a preparation method and an application device thereof, and belongs to the technical field of integrated photoelectron and optical fiber communication. Aiming at the technical problems that an existing 3D optical waveguide based on a laser direct writing process cannot be manufactured at a wafer level, the production efficiency is low and the cost is high, the invention provides a 2.5 D optical waveguide chip which comprises a substrate and at least two layers of planar optical waveguides which are isolated by a cladding material and each layer is limited to extend in a plane of the planar optical waveguide; the waveguide distribution of the light inlet end face of the chip is matched with the fiber core distribution of the target multi-core optical fiber for coupling alignment, the waveguides of the light outlet end face of the chip are distributed in a step shape, and the waveguides located on different layers have different heights so as to be coupled and aligned with the corresponding optical fiber array distributed in the step shape. The chip is suitable for wafer-level batch manufacturing and is mainly used for forming core optical devices such as a multi-core optical fiber fan-in and fan-out assembly, a multi-core optical fiber optical receiver and a multi-core optical fiber optical transmitter.
Owner:FIBEROUTLETS (WUHAN) TECH CO LTD

A pressurized core mold

ActiveCN224391774UVibration suppression adjustmentsInjection portSingle injection
The utility model discloses a kind of pressurized core mould, it is related to pressurized core mould technical field, including top cover, the top cover top is fixedly connected with injection port, the bottom of top cover is provided with forming assembly, the bottom of forming assembly is provided with bottom mould.The pressurized core mould is to solve the problem that only single production workpiece can be produced in prior art mould, production efficiency is low and it is difficult to meet the batch manufacturing demand, the cavity structure of top mould and bottom mould cooperation is set in the present application, and cross feed groove is designed in top mould, after injection liquid is injected into injection port, it can be evenly distributed to multiple cavities from four directions along cross feed groove, the structure realizes the synchronous forming of multiple workpieces by single injection process, and the accurate positioning of fixed sleeve and limiting sleeve and spring buffer mechanism are matched, which not only guarantees the uniformity of multi-cavity injection molding and the stability of finished product quality, but also significantly improves production efficiency, effectively reduces single manufacturing cost.
Owner:XIAMEN MAILINGTENG IND & TRADE CO LTD

Large-span stadium steel structure and construction process thereof

The present application relates to a kind of large-span venue steel structures, it is characterized in that: including standard exhibition hall and login hall;The standard exhibition hall has a pair, the login hall presents T-shaped structure, and standard exhibition hall is respectively arranged at the two sides of login hall, and standard exhibition hall is symmetrically arranged about login hall;Net shell structure optimization presents hub node, processing technology is simple, and can realize factory batch manufacturing, compared with the net shell structure formed by welding node, this method makes the appearance processing difficulty of net shell greatly reduced;In addition, net shell rod piece is welded with hub node, positioning is simple, more conducive to control structure overall quality and linear control;Design special hoisting structure, select appropriate lifting point, give hoisting data support theoretically;Using specially designed jig, reduce hoisting installation risk, while solving hoisting precision control problem;The above improvement point guarantees the installation of hoisting, and the profile contour of structure assembly meets design requirement, reduces rework frequency.
Owner:CHINA RAILWAY STEEL STRUCTURE CO LTD

Light engine with high airtightness

The high-air-tightness light engine comprises a substrate, a support ring is arranged on the substrate, the middle part of the support ring is hollow, the hollow middle part of the support ring is used as a chip module setting area, and a chip module is arranged in the chip module setting area; a lens upper cover is arranged above the support ring; the support ring is used as a sealing element between the substrate and the lens upper cover; through the sealing effect of the support ring, the chip module setting area forms a high-air-tightness sealing area, the chip module setting is performed in the high-air-tightness sealing area, a three-layer stacking structure of "bottom plate-support ring-lens upper cover" is formed, the air-tight cavity packaging of the optoelectronic chip is realized by using a metal eutectic welding process between the support ring, the substrate and the lens upper cover, a high-reliability, high-performance and wafer-level batch-manufacturable light engine sealing structure is formed; an annular metallization layer is prepared on the outer edge area of the upper surface of the substrate through thin film deposition; and a bonding interface in the bottom layer of the three-layer air-tight structure of "bottom plate-support ring-upper cover" is formed.
Owner:JIANGSU ALLRAY

TiAl alloy low-temperature diffusion bonding method based on synergistic effect of surface hydrogenation treatment and Zr intermediate layer

The invention discloses a TiAl alloy low-temperature diffusion bonding method based on the synergistic effect of hydrogenation treatment and a Zr intermediate layer, and aims to solve the technical problems that traditional TiAl alloy diffusion bonding is high in temperature and insufficient in joint strength. According to the method, a certain content of hydrogen element is introduced to the surface of the TiAl alloy through a hydrogenation treatment technology, meanwhile, Zr foil serves as a middle layer, and low-temperature efficient connection of the TiAl alloy is achieved through the synergistic effect of the hydrogen element and the Zr foil, specifically, hydrogenation treatment induces the TiAl alloy to generate a beta phase, the hardness of base metal is reduced, and the atomic diffusion rate is increased; the Zr intermediate layer and the Ti element in the TiAl alloy form a continuous solid solution, atomic diffusion is further accelerated, and the interface structure is optimized. And compared with a traditional process, the connection temperature is greatly reduced, and the method is suitable for batch manufacturing of TiAl alloy complex components. The method is suitable for manufacturing lightweight high-temperature-resistant components such as aircraft airfoils and engine hot ends. The method is suitable for manufacturing lightweight high-temperature-resistant components such as aircraft airfoils and engine hot ends.
Owner:HARBIN INST OF TECH

Metal and engineering plastic compounding method

PendingCN121946868AEnsure bond strengthEnsure binding stabilityDomestic articlesFastening meansAdhesiveEngineering plastic
The invention belongs to the technical field of mechanical part composite manufacturing, and provides a metal and engineering plastic composite method which comprises the following steps: providing a metal piece; providing an engineering plastic part; coating an adhesive on the surface of the combination part and / or the surface of the main body part; the threaded connecting part and the threaded hole are screwed and pre-fixed into an integrated assembly; and the edge of the joint part is rolled and riveted. According to the method, a special adhesive is coated, uniform pre-tightening force is generated through screw-thread fit screwing, so that the bonding surfaces of the metal part and the engineering plastic part are tightly attached, a mechanical interlocking foundation is established, and finally, the edge of the metal part is plastically deformed through a rolling riveting technology, and the engineering plastic part is completely wrapped with the edge of the metal part. Through the synergistic effect of all the composite technologies, the production cost and the equipment threshold can be remarkably reduced while the bonding strength and the long-term stability of the bonding surface are ensured, and the method is particularly suitable for multi-variety and small-batch manufacturing of parts such as high-performance valve clacks which have strict requirements for reliability and economical efficiency.
Owner:CHANGDE XIANGYU EQUIP MFG

Punching and positioning tool for small-batch manufacturing of new energy automobile battery cases

A punching and positioning tool for small-batch manufacturing of new energy automobile battery cases comprises a tool bottom plate, a drill jig sleeve, a positioning clamping plate and a clamp, when small-batch battery cases need to be manufactured and produced, the punching and positioning tool is buckled on the battery cases needing to be punched, the positioning clamping plate is used for positioning, and the clamp is used for clamping the battery cases needing to be punched. A clamp is used for clamping a cross beam on a battery case for fastening and fixing, and punching operation is performed according to the position of a drill jig sleeve on the tool bottom plate, so that errors of manual measurement are reduced, multi-hole positioning can be realized through one-time clamping, the adjustment time is shortened, the alignment speed is increased, and the small-batch production efficiency is greatly improved.
Owner:LINGYUN NEW ENERGY TECH CO LTD

Height increasing support and laundry equipment

The application provides a heightening support and a laundry equipment. The heightening support comprises a left support unit, a right support unit, and a telescopic connecting assembly connected between the left support unit and the right support unit. The left support unit and the right support unit are symmetrically arranged. The left support unit and the right support unit respectively comprise a support structure and a supporting structure fixed on the top of the support structure. The telescopic connecting assembly is provided with a telescopic rod arranged transversely, and the telescopic rod is used for adjusting the transverse distance between the left support unit and the right support unit. The application can realize the adjustment of the transverse length of the lifting support by arranging the telescopic rod between the left support unit and the right support unit, and then support the washing machines with different sizes. In addition, the left support unit and the right support unit are symmetrically arranged, so that the overall force of the heightening support is uniform, the support stability is improved, and the complexity of production and installation is reduced, thereby facilitating batch manufacturing and rapid assembly.
Owner:HANGZHOU XINGJU HOME FURNISHING CO LTD

Oral disposable scanning rod 3D printing method

The application discloses a kind of oral disposable scanning rod 3D printing methods, comprising: S1, phase setting structure monitoring interval layer and fusing layer thickness monitoring interval layer, generate monitoring interval layer with label;S2, judge layer thickness consistency by single layer, interlayer and the thickness detection of different positions in the same layer, realize repairability judgment and processing in combination with thickness deviation degree and root cause analysis;S3, joint optical imaging and ultrasonic detection surface crack and internal bubble evaluate structure integrity, dynamically adjust monitoring frequency;S4, based on demolition force, residual size and residual position evaluate support residual risk level and handle by grade.The application solves the problems of low monitoring efficiency and incomplete defect detection in the prior art through dynamic monitoring, multi-dimensional defect analysis and self-adaptive adjustment, significantly improves the printing qualification rate and production efficiency, and is suitable for batch manufacturing of high-precision oral scanning rods.
Owner:DONGGUAN YANGZIJING DENTAL LAB CO LTD

Clamp parallelism measuring device

The utility model relates to the technical field of machining workpiece measurement, in particular to a clamp parallelism measuring device. The utility model provides a clamp parallelism measuring device, which comprises a first measuring frame body, a second measuring frame body, a first adjusting piece, a measuring piece and a measuring reference piece, and is characterized in that the first measuring frame body is connected to the second measuring frame body, and the measuring reference piece is connected to the first measuring frame body; the measuring piece is connected to the second measuring frame body, the measuring end of the measuring piece is arranged opposite to the abutting end face of the measuring reference piece, a sample measuring position is arranged between the measuring end and the abutting end face, and the first adjusting piece is used for adjusting the relative distance between the measuring end and the abutting end face. According to the technical scheme, the size change is small when batch manufacturing needs to be checked during the period, timely detection can be achieved after each batch of samples are machined, and meanwhile the advantages of being visual in detection result, rapid and low in cost are achieved.
Owner:BEIJING SHOUGANG COLD ROLLED SHEET

3D printing equipment for manufacturing casting sand molds on large scale

The utility model relates to the technical field of sand mould 3D printers, in particular to 3D printing equipment for manufacturing casting sand moulds on a large scale, which comprises a sand box, a residual sand basket is fixedly connected onto the sand box, a sand scraping mechanism is arranged at the top of the sand box, a cover plate is mounted on the sand scraping mechanism in a clamping manner, a through groove is arranged in the cover plate, and the sand box is fixedly connected with the residual sand basket. A sliding mechanism is installed at the position of the through groove and comprises a support and a motor, the support is fixedly connected to the top end of the cover plate, the motor is fixedly installed on the support, an output shaft of the motor is fixedly connected with a rotating disc, a sand screening basket is slidably connected into the cover plate, and a fixing block is fixedly connected to the sand screening basket. A rotating rod is rotationally connected between the rotating disc and the fixing block. The rotating rod drives the fixing block and the sand screening basket to slide in the cover plate, the sand screening basket filters sand stored in the sand screening basket, the caked sand collides with the inner wall of the sand screening basket and can also be loosened, and then the sand can evenly fall into the sand paving device.
Owner:浙江会钦重工有限公司

Method for manufacturing vehicle battery and bulk manufacturing process

The invention relates to a method (100) for producing a vehicle battery (2) for a vehicle (1) in a mass production process (200) for producing different variants, the variants differ in the mass production process (200) in terms of a pitch geometry of at least one fastening interface (31) for fastening the vehicle battery (2) at a distance in the vehicle (1). Furthermore, the invention relates to a batch manufacturing process (200) for manufacturing a first variant and a second variant of a vehicle battery (2).
Owner:HELLA GMBH & CO KGAA

A combined core mold and a manufacturing method thereof

The application provides a combined core mold and a manufacturing method thereof, comprising an inner core and a skin, the skin covering the surface of the inner core, and the two being integrally formed. The integrally formed combined core mold can ensure that the skin and the inner core closely follow each other, so that the size of the combined core mold meets the requirements, and since it is integrally formed, it is not necessary to assemble and disassemble, thereby avoiding the problem that the gap becomes larger due to multiple assembly and disassembly, which affects the quality of the target workpiece. According to the glass transition temperature of the target workpiece to be formed, the inner core of the combined core mold is made of two types of materials, if the inner core is made of water-soluble materials, it can be prepared by itself, which has the advantages of low cost and batch manufacturing; if the inner core is made of low-melting-point alloy materials, rapid melting pouring and rapid melting demolding can be realized, and the combined core mold made of alloy cools down faster, the overall preparation efficiency of the inner core mold will be greatly improved, and the low-melting-point alloy can be repeatedly used through melting-cooling.
Owner:SHAANXI TIANYI ANTENNA

Forming method of packaging structure

A forming method of a packaging structure comprises the following steps: providing a temporary support plate; forming at least one rewiring layer, a conductive plug layer and a metal groove based on the temporary support plate; providing a preprocessing chip, wherein the preprocessing chip is fixed in the metal groove; providing at least one main chip, wherein the main chip is in bonding connection with the preprocessing chip and the rewiring layer; and cutting the panel-level packaging structure formed on the basis of the temporary support plate to form a plurality of single packaging structures. The pre-processing chip is embedded into the metal groove, so that the packaging size can be obviously reduced. The heat generated by the preprocessing chip is directly conducted and dissipated by utilizing the excellent heat conduction characteristic of the metal material, so that the heat dissipation structure is suitable for chip integration scenes such as power devices with strict heat dissipation requirements, the heat management capability of the power devices is remarkably improved, and the preprocessing chip is ensured to stably and reliably operate in a limited space. The batch manufacturing mode based on the panel-level carrier plate can break through the efficiency bottleneck of traditional single packaging, and the productivity output is remarkably improved.
Owner:NANTONG FUJITSU MICROELECTRONICS

A mass production method of a double-toothed nut for a planetary roller screw

ActiveCN118544081BSignificant advantages <other></other>significant beneficial effectsRoller screwTooth position
The application discloses a batch manufacturing method of a double-toothed nut for a planetary roller screw, and relates to the technical field of planetary roller screws, which comprises the following steps: machining a workpiece from a forged blank and performing spheroidizing annealing treatment; performing quenching and tempering treatment after rough machining of the workpiece, and then performing high-frequency quenching treatment after semi-finishing machining; manufacturing a gear shaping fixture and machining a flange positioning disc on the outer circumference of the workpiece to assemble a tooth position reference; machining a first inner gear ring and a second inner gear ring which are symmetrically arranged, and controlling the azimuth angle difference P of the central axes of the first inner gear ring and the second inner gear ring to be within the range of-0.015mm to +0.015mm in terms of the arc length L at a tooth division circle; machining an inner thread part in the workpiece in the axial direction; and machining the flange positioning disc to be removed to form the double-toothed nut. The application increases the process structure, designs the gear shaping fixture and changes the heat treatment method, thereby completing integrated manufacturing of the inner gear ring and the inner thread part, and improving the overall strength and assembly precision.
Owner:HUBEI KEFENG TRANSMISSION EQUIP CO LTD

Device and method for measuring inclination angle of counterweight in centrifugal counterweight assembly

The invention relates to the field of machining, and discloses a device and method for measuring the inclination angle of a balance weight in a centrifugal balance weight assembly, a measuring assembly unit in the device is circumferentially and rotatably arranged on a support plate seat, the measuring assembly unit is flush with the top of the support plate seat, and a center line is arranged at the center position of the top of the support plate seat; the top of the measuring and assembling unit is provided with a scale line, the center position of the scale line is a 0 scale line, and the 0 scale line is aligned with the center line; an assembly hole is formed in the measuring assembly unit along the center position of the scale line, and a centrifugal counterweight assembly is assembled in the assembly hole; the positioning unit is fixed on the measuring and assembling unit, and the positioning end of the positioning unit is positioned on the centrifugal counterweight assembly. The device is simple in structure, parts are easy to machine and maintain, batch manufacturing can be achieved, the device can be applied to multiple assembly lines, hardware support is provided for standard detection of centrifugal counterweight assemblies, and the assembly quality consistency of the whole production line can be improved.
Owner:XIAN AERO ENGINE CONTROLS

A method for powder forging of an aluminum matrix composite

ActiveCN121649396BReduce configuration requirementsSimple processAl powderMetal matrix composite
The application discloses a kind of aluminum matrix composite powder die forging preparation methods, specifically related to metal matrix composite preparation and forming processing field.The method includes: aluminum powder, alloying element powder and ceramic reinforcing particles are made into near-spherical composite particles with particle size 0.15mm~3mm by mechanical ball milling;Composite particles are loaded into mold cavity, heated to 250℃~650℃ in protective atmosphere and applied not less than 20MPa die forging pressure, directly formed into die forging;Finally, after deburring and size finishing, the part is obtained.Ceramic reinforcing particles volume fraction is 1%~35%, and aluminum powder and alloying element powder particle size is 10μm~50μm.The application organically combines ball milling mixing and die forming, realizes powder densification and part forming one-step completion, simplifies traditional multi-process process flow, significantly improves production efficiency and material utilization, reduces production cost, and is suitable for batch manufacturing of high-performance aluminum matrix composite parts.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Novel metal powder mixed fluid preparation and semi-melting forming process for SLM 3D printing

The invention discloses a novel metal powder mixed fluid preparation and semi-fusion forming process for SLM 3D printing. The process is suitable for low-cost and high-performance batch manufacturing of precision parts such as aerospace and medical implants and high-end molds. Aiming at the pain points of high cost of pre-alloyed powder, high patent risk of elemental mixed powder, low density, large equipment investment and the like, an asymmetric three-peak particle size design avoidance patent is innovatively adopted, and a core-shell structure mixed fluid is prepared in combination with a multi-objective weighted optimization model and a spray coating method; single-laser dynamic power three-section control is adopted in the forming process, and optimized forming environment parameters are matched. According to the method, existing equipment does not need to be modified, the compactness of a formed part is larger than or equal to 99.3%, the tensile strength is improved by 50% or above, the raw material cost is reduced by 35%, the equipment investment is reduced by 40%, and the patent compliance and industrialization adaptability are high.
Owner:何祥宇 +1

Temperature-air pressure coupling sintering process for photocuring complex-configuration ceramic

The invention belongs to the technical field of ceramic manufacturing, and provides a temperature-air pressure coupling sintering process for photocuring complex-configuration ceramic. A multi-stage sintering path is taken as a core, temperature and air pressure curves are matched and coupled, three stages of low temperature, liquid phase formation and high-temperature densification are set, different heating rates and heat preservation platforms are configured in key temperature areas T1, T2 and T3 corresponding to low air pressure P1, medium air pressure P2 and high air pressure P3, and gas discharge, liquid phase promotion and densification are cooperatively realized. Local temperature and pressure micro-adjustment is achieved by adjusting the furnace chamber partition heating power and the gas inlet and outlet rate, and the diversified requirements for sintering large-wall-thickness solid pieces, lattice structural pieces, small rod pieces and the like in the same furnace are met; on-line monitoring and closed-loop control are combined, and automatic adjustment and stable operation are achieved. Compared with a traditional single temperature-pressure curve process, the sintering consistency and stability of the ceramic part with the complex structure can be remarkably improved, the defect risk is reduced, and the method is suitable for batch manufacturing of multiple types of complex geometric ceramic parts.
Owner:HARBIN INST OF TECH