177 results about "Batch fabrication" patented technology

The invention discloses a batch processing technology of micro-fluidic chips, and relates to the technical field of chip processing. The method comprises the following steps: firstly, providing at least two layers of polymer coiled materials, namely a first coiled material for forming a micro-channel structure and a second coiled material for closing a micro-channel, the coiled materials are continuous coiled materials selected from polyethylene glycol terephthalate (PET), cycloolefin polymer (COP), polycarbonate (PC) or polymethyl methacrylate (PMMA), and the coiled materials are continuous coiled materials selected from polyethylene glycol terephthalate (PET), cycloolefin polymer (COP), polycarbonate (PC) or polymethyl methacrylate (PMMA); the thickness of the coiled material is 50-500 microns; secondly, carrying out continuous compression molding processing on the surface of the first coiled material through a roll-to-roll processing platform; through a roll-to-roll continuous process, micro-channel mold pressing, functional deposition, precise alignment bonding and online cutting are integrated, high-efficiency, high-consistency and high-integration-level batch manufacturing of the micro-fluidic chip is realized, and manual intervention and production cost are remarkably reduced.

The embodiment of the utility model provides a storage tank bottom structure, a storage tank and a carrier rocket, the storage tank bottom structure comprises a shell and a top cover, the shell is of a hollow arc-shaped revolving body structure which is through in the front-back direction, the two ends of the shell are the small-diameter end and the large-diameter end respectively in the axis direction of the shell, and the small-diameter end of the shell is fixedly connected with the top cover; a propellant is arranged on the top cover; a plurality of protruding structures are evenly distributed on the outer side face of the shell in the circumferential direction in the axis direction of the shell. According to the technical scheme, the bottom structure of the thrust bearing type storage tank is simple in process, easy to manufacture in batches and beneficial to achieving light weight of a carrier rocket.

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.

The invention provides a multi-variety variable-batch manufacturing process quality characteristic evaluation method and system. The method comprises the steps that the total number of processes, the total number of products and the total number of poor processes in product historical production task process quality data are clustered according to product similarity and then combined; the total process number N, the total number N (X) of all the processes, the work report amount Nb of the type b products, the X process defect number P (X) and the total process defect number P are calculated; dimension factors of quality evaluation are calculated, the dimension factors comprise the procedure support degree SX, the procedure confidence coefficient CX, the procedure bad support degree SPX and the procedure reject ratio PRX, the quality characteristic PQX of each procedure is calculated accordingly, and the procedure with the large relative value is recognized as the current quality bottleneck procedure. According to the method, standardized, self-adaptive and convenient quality characteristic comprehensive evaluation can be carried out on discrete manufacturing type product procedures under the conditions of mixed lines of different product types, batch production, different procedure complexity and long technological process by integrating procedure historical production quality abnormity records.

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.

The invention discloses a micro-nano spray needle batch manufacturing method based on cutting and dissolving. The method comprises the following steps: printing a plurality of soluble polymer line groups on a substrate plate to obtain a micro-nano spray needle convex mold and / or an array micro-nano spray needle convex mold; a pouring mixed solution is poured on the base plate printed with the soluble polymer line group through a pouring method, so that the soluble polymer line group is covered with the pouring mixed solution, and the micro-nano spray needle which is not trimmed is obtained through curing; and cutting and dissolving the obtained unfinished micro-nano spray needle through a cutting and dissolving method to obtain the micro-nano spray needle with an inlet and an outlet. The invention discloses a micro-nano spray needle batch manufacturing method based on cutting and dissolving and a spray needle. Micron and nano structures are printed and manufactured through an electro-hydraulic power jet method, an unfinished micro-nano spray needle is obtained in cooperation with a pouring method, and a channel of the micro-nano structure spray needle is obtained by cutting and dissolving a printed male die.

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.

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.

The utility model discloses an anti-loosening thread fastening kit easy to manufacture in batches. The anti-loosening thread fastening kit comprises a bolt, a nut and an elastic gasket. A positioning groove is formed in the bolt in the axial direction. A plurality of anti-skid teeth which are rotationally and symmetrically distributed are densely distributed on at least one end surface of the nut; the inner ring of the elastic gasket is provided with a positioning block matched with the positioning groove, the elastic gasket is a ring-shaped special-shaped gasket B, the circumferential surface of the gasket B is provided with at least one radial slot in the radial direction of the gasket B, and the length of the radial slot is smaller than the width of the ring part of the gasket B; a circumferential opening seam is formed in one side of the gasket in the circumferential direction from the bottom of the radial opening seam as a starting point, strip-shaped parts separated by L-shaped opening seams formed by the radial opening seam and the circumferential opening seam form elastic warped pieces, and the elastic warped pieces are obliquely turned up at a sharp angle in the direction of the same face of the gasket B; and the gasket B is formed by punching a plate with the same thickness at one time. The reliability is higher, and the production cost is lower.

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.

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.

The utility model provides a test tool. The testing tool is used for testing the insulativity of a product to be tested and comprises a base, an adjusting plate, a first conductive plate and a second conductive plate, and the adjusting plate is movably arranged on the base; the first conductive plate is connected with the base and serves as an electrode of the test tool; the second conductive plate is connected with the adjusting plate, faces the first conductive plate and serves as the other electrode of the test tool; wherein the distance between the first current-conducting plate and the second current-conducting plate can be adjusted by moving the adjusting plate, so that a plurality of products to be tested can be installed between the first current-conducting plate and the second current-conducting plate in parallel. According to the test tool provided by the utility model, the plurality of to-be-tested products are installed between the first conductive plate and the second conductive plate in parallel, so that the test tool can complete the insulation test of the plurality of to-be-tested products at one time, the test efficiency is high, and the requirement of batch manufacturing can be met.

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.

The invention discloses a light durable liquid cooling plate based on an aluminum foil material and a manufacturing process thereof. The manufacturing process comprises the steps of preparing a material sheet, forming a runner through cold stamping, folding and sealing and the like. The liquid cooling plate is made of a three-layer composite material composed of polypropylene (PP), aluminum foil and nylon, and compared with a traditional pure metal liquid cooling plate, the liquid cooling plate has the advantages of being soft in attachment, good in surface deformation and free of being coated with heat dissipation glue, and the heat dissipation effect is remarkably optimized. The PP layer is resistant to bacteria and corrosion, so that the service life of the liquid cooling plate is prolonged to 10-15 years, and the problems that a traditional metal plate is prone to corrosion, liquid leakage and biological growth are solved. The design is light in weight, low in cost, particularly suitable for mobile electronic equipment such as aircrafts and electric automobiles, high in automation degree of the production process and suitable for batch manufacturing. Due to the ductility and convenient sealing characteristic of the composite material, the liquid cooling plate is more stable in structure and reliable in packaging, and the modern requirements for high efficiency, light weight, durability and heat dissipation are fully met.

The invention discloses a method for manufacturing an X-ray absorption grating, which belongs to the technical field of X-ray imaging and application, and comprises the following steps of: carrying out semiconductor bonding connection on a doped monocrystalline silicon wafer (high conductivity) and an intrinsic monocrystalline silicon wafer (weak conductivity) to synthesize a double-layer silicon wafer with relatively large interlayer conductivity difference; then, a periodic micro groove preset by the grating is manufactured on the weak-conductivity intrinsic monocrystalline silicon layer through a semiconductor thinning-photoetching-etching process, the bottom of the groove reaches the strong-conductivity doped monocrystalline silicon layer, and therefore the silicon grating with the conductive bottom and the insulated side wall is constructed; and finally, metallization filling is carried out through electroplating, and manufacturing of the X-ray absorption grating is achieved. The technical scheme of the invention is based on a current relatively mature semiconductor manufacturing process, has relatively high technical maturity and reliability, is relatively simple in process and relatively low in batch manufacturing cost, can effectively solve the problems of sealing and the like of electroplating filling, and greatly improves the manufacturing efficiency and the yield of the grating.

This disclosure relates to a process for manufacturing blade leading edges (1), the process comprising the following steps: - extraction (31) of several blanks (9) from a single mass (17), in particular a billet, and - production of at least one leading edge (1) in each blank. Figure for the abstract: Fig. 1

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.

The utility model discloses a wind power blade with a core material structure designed in a partitioned mode, and relates to the technical field of wind power blades, the wind power blade comprises a blade shell, the blade shell comprises an upper shell body and a lower shell body, main beams are fixedly connected to the inner wall of the upper shell body and the inner wall of the lower shell body, core materials are laid on the two sides of the two main beams, and the core materials are arranged in the upper shell body and the lower shell body. Two sets of clamping strips are fixedly connected to the sides, close to each other, of the two main beams, and clamping grooves are formed in the middle positions of the two sets of clamping strips. The whole web is divided into the left web, the middle web and the right web, then the left web, the middle web and the right web can be manufactured in batches, the manufacturing speed is increased by reducing the manufacturing difficulty, and meanwhile, the whole web is split, so that the left web, the middle web and the right web are light in weight, and the manufacturing cost is reduced. And therefore, a worker can conveniently install the fan blade, and the manufacturing efficiency of the fan blade is improved.

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.

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.

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.

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.

The invention discloses automatic motorcycle protective cover production equipment which comprises a material unwinding device, a rubber band edge pressing device, a transverse sealing device, a longitudinal edge sealing device, a secondary heat sealing device and a slitting device. According to the equipment, efficient production is achieved through an automatic process, and the accuracy of edge sealing and slitting is ensured through a cam transmission mechanism and a synchronous belt. The special sealing line fine adjustment mechanism allows quick adjustment of the position of a heat sealing line, adapts to production of products of different specifications, shares the design of a main drive motor, simplifies a power system, reduces energy consumption, is compact in equipment structure and easy and convenient to operate, improves production efficiency and product quality, reduces maintenance cost, and is suitable for batch manufacturing of motorcycle protective sleeves of different sizes.

Methods are disclosed for manufacturing a Micro-ElectroMechanical Systems (MEMS) scanning mirror. In an embodiment, one method includes depositing a hinge material on a substrate and removing first and second portions of the substrate to form an outer frame, an inner frame, and a mirror plate in the substrate. First and second portions of the hinge material rotationally couple the outer frame to the inner frame and the inner frame to the mirror plate for rotation about first and second orthogonal axes of rotation. In another embodiment, a third portion of the substrate rotationally couples the inner frame to the mirror plate. In still another embodiment, an elastomer material is configured as a bending hinge that rotationally couples the outer frame to the inner frame.

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.

This invention relates to the field of interior building technology, and more particularly to a transferable and adjustable automated door and window lintel fabrication device. The invention provides a transferable and adjustable automated door and window lintel fabrication device that allows for rapid adjustment of dimensions and specifications during lintel fabrication. The device includes a mounting base, a storage cavity, a fixing plate, and limiting frames. The mounting base has a storage cavity inside, a fixing plate is located on the left side of the mounting base, and symmetrical limiting frames are located on the upper right side of the fixing plate. The invention uses a first lead screw to adjust the position of a first blocking component, thereby rapidly adjusting the width of the door and window lintel. It also moves a first baffle to rapidly adjust the length of the door and window lintel. After cement filling is completed, a second blocking component and its components can be removed, and the empty shaping mechanism can be placed on the mounting base, facilitating batch fabrication of door and window lintels and improving production efficiency.

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.

The utility model relates to a high energy density energy storage liquid cooling battery pack, which relates to the technical field of energy storage system battery packs, and comprises a lower box body, a battery module arranged on the lower box body, and an upper cover which covers the battery module and is connected with the lower box body, the edge of the front panel is provided with an inward-turned flange face structure so as to be detachably connected with the upper cover and the lower box body, and the open-type windowing structure is provided with an outward-turned flange sealing face so as to be detachably connected with the front panel. According to the utility model, the space is saved due to a smaller draft angle, demolding is facilitated due to a transition fillet structure, the sealing width is increased, the sealing performance is improved, the product quality is ensured by one-step molding, the system mass density is improved due to a lightweight design, low-cost material selection and high-efficiency mold molding are realized, and large-scale batch manufacturing is facilitated.

The invention provides a high-plasticity superfine thin-wall austenitic stainless steel pipe and a cold rolling preparation method thereof, and relates to a 321 type stainless steel cold rolling precision pipe with the specification of phi 4 * 0.5 mm to phi 6 * 0.6 mm. The method comprises the steps of pierced billet solution treatment, acid pickling treatment, initial-section large-deformation cold rolling, middle-section medium-deformation control, tail-section high-deformation strengthening and finish rolling annealing, multi-pass cold rolling deformation distribution is accurate, and cooperative control over work hardening and recrystallization is achieved in cooperation with a staged dynamic heat treatment process. The problem that strength and plasticity are difficult to obtain at the same time in the prior art is solved. The finished pipe has excellent mechanical properties and dimensional stability, the yield strength Rp0.2 is larger than or equal to 310 MPa, the tensile strength Rm reaches 640-675 MPa, the percentage elongation after fracture A is larger than or equal to 40%, the grain size is larger than or equal to 11 grades, the wall thickness and the outer diameter tolerance are controlled within the range of + / -0.02 mm and the range of + / -0.03 mm respectively, and the surface quality is excellent. The method is suitable for batch manufacturing of high-strength, high-toughness and high-precision pipes in high-end equipment such as nuclear power equipment and aerospace equipment.