194results about How to "To meet preparation needs" patented technology

The invention discloses a laser-electric arc compound welding gun which is characterized in that the welding gun respectively adopts ball screw linear guide rail mechanisms driven by three stepping motors or servo motors to precisely adjust the space positions of a laser focal point and an electric arc electrode along x, y and z three right-angle coordinate axis directions, and meanwhile, a gear pair rotation adjustment mechanism driven by one stepping motor or one servo motor to enable the electric arc electrode to freely rotate around the axial line of a laser beam within a 360-degree range; furthermore, by additional arrangement of an electromagnetic anti-splashing device fed with high-frequency alternating current, the compound welding gun controls a moving path of welding splashing under the mutual action between a magnetic field and a vortex, so that pollution caused by the welding splashing to a laser optical system and an electric arc welding gun protection system can be reduced. Due to the structural design, the compound welding gun disclosed by the invention can meet the requirements on efficient digitalized welding of complicated parts and manufacturing of complicated part additives.

A method for realizing liquid crystal arbitrary orientation control through numerical control micromirror array photoetching utilizes a set of projection photoetching system based on a digital micromirror device (DMD), so the collimated ultraviolet or blue light beams are uniformly irradiated to the surface of the numerical control micromirror array DMD, a computer outputs a shape signal to control all the DMD pixels, i.e. single micromirrors are in different reflection states for realizing intermediate photomask, so the all the DMD pixel reflected lights carry out the shape signal control; the beams are demagnified by a microobjective, and then are projected onto a substrate which has the surface coated with a light-operated orientation material through a polarizing film, exposure is completed through controlling the light intensity and time, and the liquid crystal of an exposure pattern area is reorientated; and another substrate is utilized to form a liquid crystal cell, the liquid crystal cell is filled with the liquid crystal, so preset orientation is realized. The method realizes the control and production of arbitrary patterns and orientation directions, and has a potential important application in the fields of wide viewing angle liquid crystal display, adjustable optical communication devices, wavefront correction, light beam control and the like.

The invention discloses a method for preparing a porous polymer micro needle by using a template method and an application thereof. The method comprises the following steps of: (1) dissolving a polymer and a template agent in a solvent to prepare a polymer solution; (2) filling the polymer solution into a micro needle mould; (3) removing the solvent in the obtained micro needle mould to obtain a solid micro needle; (4) removing the template agent in the obtained solid micro needle to obtain the porous polymer micro needle. By improving the overall process flow design of the preparation method,the method can solve the technical problems of a complex preparation process, harsh conditions, a complicated process, high price, difficult control of the pore structure and size, difficult large-scale production and application and the like of the porous polymer micro needle, the obtained porous polymer micro needle can be used for tissue fluid extraction and transdermal administration, such asskin tissue fluid and blood extraction and transdermal administration of proteins, polypeptides and small molecular drugs in cosmetic, hair growth, immunity, treatment and other applications.

The invention provides a method for preparing a positive electrode material precursor by using a waste ternary lithium battery, which adopts a first stage leaching as a pressurized ammonia leaching torealize simultaneous recovery of lithium, nickel and cobalt. The second stage leaching is atmospheric pressure acid leaching to realize the recovery of doped metal (manganese or aluminum). The invention realizes low cost of waste ternary positive electrode material, Short-process recovery and reuse, in which nickel is leached by ammonia under pressure, the comprehensive leaching rate of valuablemetals such as cobalt and lithium reaches 92%. The comprehensive recovery of valuable metals such as nickel, cobalt, lithium, manganese and aluminum is over 95% by two-stage leaching. Ammonia and leaching acid can be recycled in closed circuit. The precursor of ternary positive electrode materials prepared by regeneration can meet the needs of preparation of different series of ternary positive electrode materials, and has a good prospect of industrial application.

The invention discloses a novel skin/core-layer composite fiber as well as a preparation method and application thereof. The novel skin/core-layer composite fiber comprises a carbon nanotube fiber and an electroconductive polymer coated on the carbon nanotube fiber. The preparation method comprises the following steps: firstly, preparing the carbon nanotube fiber by using an array spinning method, a floating catalytic spinning method, a solvent spinning method or the like, then acidizing the carbon nanotube fiber, and depositing the electroconductive polymer on the surface of the acidized carbon nanotube fiber to obtain the bicompoent composite fiber with electroconductive polymer as a skin layer and carbon nanotube fiber as a core layer. The composite fiber has the characteristics of good linear capacitance characteristic, light weight, high strength and the like, is simple, convenient and rapid in preparation method, and is formed through two steps, and the whole preparation process is performed at normal temperature and normal pressure and is low in energy consumption, high in efficiency and convenient to operate.

The invention discloses a method for preparing large titanium steel composite plates for nuclear power and thermal power, which comprises the following steps: 1, preparing large cladding titanium plates or titanium alloy plates; 2, respectively performing surface polishing treatment on the cladding titanium plates or the titanium alloy plates and base steel plates; 3, assembling the cladding titanium plates or the titanium alloy plates and the base steel plates by an angle assembly method; 4, performing explosion composition on the cladding titanium plates or the titanium alloy plates and the base steel plates to manufacture preliminary products of large titanium steel composite plates; 5, performing annealing treatment; 6, performing flattening treatment; and 7, performing subsequent treatment, namely performing ultrasonic flaw detection, flamecutting of plate edges, machining of four sides, surface polishing treatment and conventional performance examination on the flattened preliminary products of large titanium steel composite plates. The method has simple operation, convenient implementation and low cost; and the produced large titanium steel composite plates have good quality, and can meet the manufacturing requirement of multiple kinds of large industrial equipment and components on the titanium steel composite plates.

The invention relates to a high-accuracy railhead forging hydraulic machine which comprises a combined frame type machine body, a main cylinder, a side cylinder, a sliding block and a movable work table, wherein the combined frame type machine body consists of an upper beam, a lower beam and four upright posts, and the sliding block is connected with the main cylinder and the side cylinder. The high-accuracy railhead forging hydraulic machine is characterized in that an upper cushion plate and an upper sliding plate are arranged at the bottom of the sliding block; the upper sliding plate is fastened with the sliding block through an upper clamping cylinder; a lower cushion plate and a lower sliding plate are arranged on the movable work table; the lower sliding plate is tightly clamped with the movable work table through the lower clamping cylinder, wherein a mould pushing device is arranged between two upright posts at one side, and a mould positioning device is arranged in the middle of the movable work table. The invention has the advantages that the hydraulic machine is not only suitable for the hot compression molding process of an AT rail heel-end, but also applied to the pressing forming process of plasticity materials according to demands. Because the accuracy retentivity of the heated and pressed high-accuracy railhead forging hydraulic machine is good, the mould pushing device and the mould positioning device can not only realize multi-station pressing and accurate positioning in the multi-station pressing process, and can ensure the high-accuracy pressing of workpieces.

The invention discloses a device and method capable of increasing the synthesizing stability of cadmium zinc telluride polycrystals and aims to solve the problem that quartz tube explosion occurs easily during the synthesizing of cadmium zinc telluride, and the tube cracking accident is caused. The device and method is characterized in that protective gas is filled into a pressure-maintaining inner container, the internal and external pressure difference of a quartz crucible is balanced or lowered by regulating the gas filling pressure in the pressure-maintaining inner container, raw materialreaction rate is controlled by crystal material distribution, temperature gradient setting or furnace tube ascending and descending, and crystal growth is performed through the temperature gradient setting and the furnace tube ascending and descending. The device and method has the advantages that crucible explosion can be avoided effectively, reaction conditions are mild, phenomena such as tube cracking are avoided effectively, corresponding preparation requirements can be satisfied, and the device and method is promising in application prospect.

The invention discloses a large-aperture imaging photon sieve and a production method thereof, which belong to the technical field of diffractive optical elements. The large-aperture imaging photon sieve comprises a transparent substrate and an opaque metal thin film plated on the transparent substrate, wherein, a plurality of transparent small holes are randomly distributed on the opaque metal thin film, and the transparent small holes which are randomly distributed lead diffraction light to generate mutual interference, thereby effectively suppressing sidelobe effect and high-level diffraction, improving resolution and obtaining more sharp focal spots. The production method adopts a Connes shaping function for shaping the small holes which are randomly distributed, thereby reducing the number of the holes, reducing the data amount of a layout, optimizing the overall distribution of the small holes, leading the imaging focal spots to be more sharp and leading the level of the existing processing technology to be capable of meeting the manufacturing needs of the large-aperture photon sieve.

The invention provides a preparation method of high-purity oritavancin key intermediate A82846B. The preparation method comprises the following steps: separating the oritavancin key intermediate A82846B from a fermented solution, first adjusting a pH, purifying by virtue of macroporous resin, then purifying by virtue of inversed phase chromatography, and finally crystallizing to obtain the high-purity A82846B. The method adopted by the invention is simple in operation, less in consumption of organic solvent, and capable of greatly reducing the generation of waste liquid; and moreover, the defects in the prior art that the adsorption efficiency of cation macroporous resin is low and the product yield is reduced due to the leaked adsorption can be overcome, and the preparation method is suitable for the industrialized production.

The invention provides a metal glass metamaterial with a chiral microstructure. Traditional chiral structural design is applied to a metal glass material. The metal glass metamaterial comprises a cylinder made from the metal glass material and ligaments connected with the cylinder in a tangent mode. The overall mechanical property of the structure can be regulated and controlled by changing the number, the thickness, the length and the arranging mode of the ligaments and the radius of the cylinder. According to the metal glass metamaterial with the chiral microstructure, through perfect combination of the advantages of the chiral structure and the metal glass material, the mechanical properties of a traditional multi-hole material, chiral material and metal glass are greatly improved, the light effect and the negative Poisson ratio can be achieved, the metal glass metamaterial is high in elasticity and strength and large in plasticity, a large-scale metal glass metamaterial is expected to be prepared, and the metal glass metamaterial can be applied to the specific fields such as weight reduction and sound and energy absorption.

The invention discloses a manufacturing device and a method for a bimetal composite hot bend. The device comprises a thermal induction bend mechanism, an inert gas protecting system and an automatic control system, wherein the thermal induction bend mechanism comprises a rack, a hydraulic cylinder and a hydraulic control system, a rolling wheel, a heating inductor, a limiting stopper, a rotating clamp and a first cooler are arranged on the rack, the inert gas protecting system comprises a gas inlet end socket, an exhausting end socket and a gas circulating pipeline, and a gas inlet end valve, an exhausting end valve, a gas concentration tester, a gas motor and a second cooler are mounted on the gas circulating pipeline. The method includes the steps of intercepting a required bimetal composite pipe, sealing the bimetal composite pipe, installing the bimetal composite pipe on the thermal induction bend mechanism, connecting the inert gas protecting system and roasting and bending. The manufacturing device and the method for the bimetal composite hot bend are reasonable in design, high in intelligent degree, applicability, rate of finished products, product qualities and practicability, and convenient to popularize and apply.

The invention discloses a manufacturing capacity servitization method based on a workflow model. The method comprises the following steps: firstly, building a resource input-output model according to the provided workflow model to form a resource relation graph, and describing a relation between resources needed by a service activity and generated resources; secondly, partitioning the workflow model into workflow sub-models of different particle sizes according to the resource relation graph, wherein manufacturing resources converged through the workflow sub-models are the manufacturing capacity; lastly, servicizing the formed manufacturing capacity to obtain manufacturing capacity service. According to the method, dispersed manufacturing resources are integrated into service process capacity by using service process knowledge and are published outwards, so that manufacturing capacities of multiple particle sizes and different functions can be provided for users on a cloud manufacturing service platform, and on-demand use and circulation of the manufacturing capacity are further realized.

The invention discloses a hydrothermal lithium supplement-spray remodeling regeneration method for a waste ternary positive electrode material. The method comprises the following steps: deeply discharging, disassembling and separating the waste ternary lithium battery; putting a positive electrode aluminum foil into a sodium hydroxide solution, and drying, calcining and grinding the stripped wasteternary lithium battery positive electrode material to obtain powder; adding the powder into organic acid for surface activation, then adding a lithium salt solution for hydro-thermal treatment, andthen taking the mixture as a seed crystal to be mixed with a nickel source, a manganese source and a cobalt source to obtain turbid liquid with uniform components; carrying out spray granulation remodeling on the turbid liquid to obtain an NCM precursor, and carrying out two-stage sintering on the NCM precursor and industrial oxygen to obtain a regenerated ternary positive electrode material. According to the invention, the environment-friendly and short-process recycling of the waste ternary positive electrode material is achieved, wherein in-situ repair of lithium can be rapidly achieved inthe hydrothermal lithium supplementing process, and the ternary positive electrode waste obtained after lithium supplementing serves as a seed crystal; in combination with the spray granulation technology, structure remodeling and controllable preparation of the ternary positive electrode material can be achieved.

The invention discloses a stirrer. The stirrer comprises a stirring container, a driving mechanism and a stirring mechanism, wherein the upper part and the lower part of the stirrer are respectively provided with a material inlet and a material outlet; the driving mechanism comprises a driven wheel, a driving wheel, a speed regulator, a motor and an electric control cabinet; the stirring mechanism comprises a main shaft, spiral blades and blades; the spiral blades and the blades are fixedly connected to the main shaft; the stirrer can enable materials to be stirred relatively uniformly; the materials are relatively pure in flavor; the percent of pass of foods is ensured; secondarily, the spiral blades not only enable the materials to be mixed relatively fully, but also can push and guide the materials; the material discharge is convenient; the production efficiency is improved greatly; manufacturing needs of the different foods can be met by replacing the dismountable blades; hobbing cutter wheels with cutting blades are installed at the lower part of the material inlet, and can be used for cutting the raw materials entering a stirring groove, and then the cut raw materials are stirred, and the stirring effect is improved greatly.