27results about How to "High process feasibility" patented technology

The invention discloses a full-spherical automatic focusing optical lens. The full-spherical automatic focusing optical lens is composed of a transmission group G1 with negative focal power, a transmission group G2 with negative focal power, a transmission group G3 with positive focal power, an aperture diaphragm, a transmission group G4 with positive focal power, a transmission group G5 with positive focal power and a detector assembly module which are sequentially arranged from an object space to an image space, wherein the transmission group G1 with negative focal power, the transmission group G2 with negative focal power, the transmission group G3 with positive focal power, the aperture diaphragm, the transmission group G4 with positive focal power, the transmission group G5 with positive focal power and the detector assembly module are arranged in sequence; the detector assembly module comprises an optical filter, a protection window and an image plane which are sequentially arranged from an object space to an image space. The lens has good imaging characteristics, the whole system has good transfer functions and image points, the working wavelength is 486-656 nm, the telephoto distance is infinite, the close-up distance is 0.3 m, the working image plane can reach 9.2 mm, the focusing stroke is short and only needs 0.28 mm, and the rapid focusing capacity is achieved.

The invention provides a super-lens based on a double-coupling structure, and relates to the field of optical zooming, the super-lens comprises a substrate and a phase wave front arranged on the substrate, the phase wave front is composed of a plurality of nano-columns arranged periodically, a corresponding phase distribution value is given according to the position point of each nano-column, and the phase distribution value is calculated according to the position point of each nano-column. The phase wavefront is arranged on the substrate, the phase wavefront is arranged on the substrate, the phase wavefront is arranged on the phase wavefront, the nanometer columns are arranged on the phase wavefront to convert plane waves incident to the phase wavefront into light beams focused at a specified focal length, each nanometer column has the same rectangular cross section, a slit is formed in the long axis direction of each nanometer column, and the slits penetrate through the nanometer columns and extend to the surface of the substrate. And thus, the nano-columns form a double-coupling structure. According to the invention, the focusing efficiency of the super lens can be improved.

The invention relates to high-strength and high-ductility wear-resistant medium manganese steel and a preparation method thereof, belongs to the technical field of ferrous metallurgy, and aims to solve at least one of the problems that in the prior art, medium manganese steel is low in initial yield strength and difficult to meet the application requirements of high-wear-resistant parts, high plasticity and high wear resistance are difficult to consider, and long-term stable service is difficult to realize in a high-wear environment. The invention relates to wear-resistant medium manganese steel with high product of strength and elongation. The medium manganese steel comprises the following chemical components in percentage by mass: 0.35%-0.45% of C, 0.75%-1.25% of Si, 8.5%-11.5% of Mn and the balance of Fe and inevitable impurities. By optimizing the alloy design of the medium-manganese wear-resistant steel, the limitation of insufficient initial hardness of the traditional medium-manganese steel is overcome, so that the medium-manganese steel can have higher surface hardness in a non-work-hardening stage, thereby showing excellent wear resistance in the initial service stage of a structural part; and the problem of high wear rate caused by insufficient hardness of the traditional high / medium manganese steel at the initial stage of wear is effectively avoided.

The application provides a concentrated winding circulating current loss suppression method and structure based on coil cross transposition, and belongs to the technical field of motor winding design and concentrated winding loss optimization. The structure comprises a spliced stator core and a winding coil. The winding coil is formed by winding a plurality of parallel winding strands around the split teeth in a root-by-root manner. Each parallel winding strand is arranged in layers in order from inside to outside. The winding coil is provided with a selective cross transposition structure at the end according to the parity of the number of parallel winding strands. The odd number of strands are only provided with an inter-coil cross transposition structure, and the even number of strands are provided with an inter-coil cross transposition structure or an intra-coil cross transposition structure. When the application is applied to a high-speed fractional-slot concentrated winding permanent magnet motor, the circulating current loss coefficient can be reduced by more than 36.4% at a frequency of 1500 Hz, the process is simplified, the end space occupation is reduced, and the motor power density is improved.

The invention discloses meta-aramid fibrid and a preparation method thereof, the meta-aramid fibrid comprises, by dry weight, 90.0-99.5 wt% of meta-aramid resin and 0.5-10.0 wt% of an amphiphilic block copolymer additive, and the additive comprises at least one of p-N-methyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone or N, N-dimethyl pyrrolidone. A first block having an affinity for N, N-dimethylacetamide; and at least one second block having an affinity for water. The preparation method comprises the following steps: adding an additive into a meta-aramid resin polymerization liquid to form a composite resin polymerization liquid; injecting the composite liquid into a precipitation bath composed of N-methyl pyrrolidone or N, N-dimethylacetamide and water through a dispersing device, and after precipitation, carrying out solid-liquid separation, washing and drying to obtain the fibrid. Through the synergistic effect of a specific additive and a precipitation bath system, the microstructure of the fibers is actively regulated and controlled, and the specific surface area and the surface roughness of the fibers are improved, so that the tensile strength and the internal bonding strength of finished paper are remarkably enhanced, and meanwhile, the inherent high-temperature-resistant, flame-retardant and insulating properties of meta-aramid fibers are kept.

The invention discloses an intestinal barrier repairing agent based on glycyrrhizic acid derivatives and a preparation method thereof, and relates to the field of pharmaceutical preparations, the intestinal barrier repairing agent comprises a repairing unit, a regulating unit and a delivery system for controlled release; the repairing unit comprises 18 beta-glycyrrhetinic acid and glycyrrhizol; the regulating unit comprises probiotics and prebiotics; according to the intestinal barrier repairing agent based on the glycyrrhizic acid derivative and the preparation method of the intestinal barrier repairing agent, through sequential release design of firstly adjusting a microenvironment and then executing repairing, the bottlenecks of disordered component release and insufficient synergy in the prior art are overcome; the colon programmed release logic of probiotic pilot colonization and subsequent repair of licorice active ingredients is established for the first time, and the physiological healing rule of the intestinal barrier is better met; by adopting a physically mixed double-layer heterogeneous pellet structure, not only is the activity of probiotics ensured, but also the efficient delivery of insoluble drugs is realized, and the process feasibility is high.

The present invention relates to a control structure of a valve regurgitation repair clamp, and belongs to the technical field of medical devices. The repair clamp comprises a clamp body, an upper clamp arm and a lower clamp arm arranged around the clamp body, and the lower clamp arm is provided with a reserved groove for the upper clamp arm to pass through the lower clamp arm; the clamp control structure comprises a pulling rope connected to the upper clamp arm and a deformable upper clamp arm; an overlapping part is provided between the deformed upper clamp arm and the reserved groove of the lower clamp arm to prevent the upper clamp arm from passing through the reserved groove. The clamp of the present invention can be used in conjunction with a conveying system, and the release and recovery of the clamp arm can be achieved by in vitro control of a conveying handle. The upper and lower clamp arms can be repeatedly recovered, and the valve can be captured multiple times, with high operability; compared with other similar products, the present device has a clever structure, less implants, and high process feasibility. During the retraction process of the upper and lower clamp arms, the entire clamp arm can be retracted by only controlling the movement of the upper clamp arm through the deformation of the upper clamp arm, thereby reducing the difficulty of control during the recovery process.

The invention discloses a full-spherical autofocus optical lens, which is composed of a negative optical power transmission group G1, a negative optical power transmission group G2, a positive optical power transmission group G3, an aperture stop, a positive optical power transmission group G4, a positive optical power transmission group G5, and a detector component module, which are arranged in sequence from the object side to the image side; the detector component module comprises a filter, a protection window and an image plane, which are arranged in sequence from the object side to the image side. The lens has good imaging characteristics, and the whole system has good transfer functions and image points. The working wavelength is 486-656nm, the telephoto distance is infinity, the close-up distance is 0.3m, the working image plane can reach 9.2mm, the focusing stroke is short, only 0.28mm is needed, and the ability of fast focusing is realized.

The present invention relates to an osmotic pump controlled-release tablet of an insoluble drug and a preparation method therefor. The osmotic pump controlled-release tablet comprises a tablet core, a semi-permeable membrane coating and a drug-release hole, wherein the tablet core comprises a solid dispersion of the insoluble drug and a penetration enhancer, the solid dispersion of the insoluble drug comprises the insoluble drug and a carrier, the insoluble drug is selected from nicardipine, nifedipine and felodipine and pharmaceutically acceptable salts thereof, and the carrier is selected from organic acids. Compared with the prior art, the drug solubility of the osmotic pump controlled-release tablet of the insoluble drug of the present invention is greatly improved, a large amount of penetration enhancers or other excipients do not need to be used in the tablet core, the drug-loading capacity is improved, and the tablet core is not too large; the degree of release in vivo is greatly improved; and the preparation process is simple, has low requirements for equipment and a low cost, and facilitates industrialized production.

The present invention relates to a control structure of a valve regurgitation gathering repair clamp, and belongs to the field of medical device technology. The valve regurgitation repair clamp includes a clamp body, an upper clamp arm and a lower clamp arm arranged around the clamp body, and the lower clamp arm is provided with a reserved groove for the upper clamp arm to pass through the lower clamp arm; the clamp control structure includes a pulling rope connected to the upper clamp arm and the lower clamp arm and a deformable local deformation section of the lower clamp arm; an overlapping part is provided between the deformed local deformation section and the outer contour of the upper clamp arm to prevent the upper clamp arm from passing through the reserved groove. The present invention can realize the recovery and gathering of the clamp arm and controllable re-release, so that the overall fault tolerance of the operation is high and the operability is high; compared with the prior art, the device structure of the present invention is ingenious, the implant is small, and the process feasibility is high. During the retraction process of the upper and lower clamp arms, the local deformation section of the lower clamp arm is deformed, so that the entire clamp arm can be retracted only by controlling the movement of the upper clamp arm, reducing the difficulty of control during the recovery process.

According to the anti-peeping film with the asymmetric structure, one side of a light absorption unit structure is linear, the other side of the light absorption unit structure is a 5-order or 4-order curvilinear function, the slope of the maximum characteristic of the curvilinear function is gradually reduced when the maximum characteristic of the curvilinear function is close to the top position, and therefore the function that the single side is more anti-peeping is achieved; in addition, the peep-proof film product is high in process feasibility, and industrial large-scale production is easy to achieve.

The present invention relates to the field of automobile oil rail production and manufacturing, and in particular to a projection welding tool for an eight-cylinder oil rail injector seat, comprising an upper die consisting of an upper electrode and an upper die seat and a lower die consisting of a lower electrode and a lower die seat; the upper die seat and the lower die seat are connected by a guide column assembly; the upper electrode is fixed to the upper die seat by inserting or screwing; four split electrodes are arranged in the middle of the upper electrode; the split electrode is connected to a first cylinder and is driven by the first cylinder to move forward and backward; the first cylinder is screwed to a cylinder fixing plate connected to the upper die seat; the lower electrode is fixed to the lower die seat by inserting or screwing. The present invention also includes a projection welding method using the above-mentioned tool. The present invention achieves the technical difficulty of one-time projection welding of eight-cylinder oil rails by adding a split electrode driven by a cylinder to the upper electrode, saving development costs, and has a simple working process, convenient use, simple structure, high working efficiency, good process feasibility, and significant economic benefits.

The invention discloses a pyridine-phenol compound, polyester prepared from the pyridine-phenol compound as well as a preparation method and application of the pyridine-phenol compound. The pyridine-phenol compound has a structure as shown in a formula (I), wherein in the formula (I), R1 is selected from amino, dimethylamino or pyrrolidinyl; r2 is selected from nitro, fluorine or trifluoromethyl; r3 is selected from hydrogen, methoxyl, methyl, isopropyl, tert-butyl or fluorine; and R4 is selected from hydrogen, methoxyl, methyl, ethyl, isopropyl, tert-butyl or fluorine. The pyridine-phenol compound is an efficient organic catalyst and can catalyze ring-opening polymerization of a cyclic monomer to prepare aliphatic polyester, the conversion rate of the cyclic monomer is high, and the dispersion coefficient (PDI) of the synthesized polyester is low. The catalyst is insensitive to the environment (stable to air and water), does not contain metal, and is mild in reaction condition, high in reaction selectivity and high in polymerization speed. # imgabs0 #

The invention relates to an optical proximity effect correction method for a metal wire and through hole layout and related equipment, and the method comprises the steps: obtaining an original metal wire and through hole layout, taking the direction, perpendicular to the extension direction of an interconnection metal wire, in a plane of a layer where the interconnection metal wire is located as the width direction, metal wires, adjacent to the interconnection metal wires in the width direction, in the metal wire layer are influence metal wires, the influence metal wires comprise influence metal line segments, and the influence metal line segments are projection area line segments, on the influence metal wires, of the connecting through holes in the width direction; performing chambering treatment on each connecting through hole in the width direction to form an expanded connecting through hole; translating each influencing metal line segment for a certain distance in the width direction along the direction far away from the interconnected metal line to form a pre-processed metal line and through hole layout; and performing optical proximity correction on the pre-processed metal wire and through hole layout to obtain a corrected metal wire and through hole layout, so that a photoetching process window can be enlarged, and the metal wire is not easy to have the defects of bridging and the like.

The invention discloses a thermal trigger separation coating structure, a toy production injection mold and an injection molding technology.The injection mold comprises a mold core internally provided with a cavity, the mold core comprises an upper mold core and a lower mold core, the upper end face of the upper mold core is provided with a plurality of first inflow channels and second inflow channels communicating with the cavity, and the lower end face of the upper mold core is provided with a plurality of second inflow channels communicating with the cavity; the mold cavity comprises a frame part cavity and a plurality of part part cavities, a plurality of first glue injection openings are formed between the part part cavities and the frame part cavity, the sectional area of the first glue injection openings from the frame part cavity to the part part cavities is reduced in a gradient mode, and the area of the contact face of the first glue injection openings and the part part cavities is larger than the area of the first glue injection openings. The first flow inlet channel is communicated into the frame part cavity, the second flow inlet channel is communicated into the part part cavity, and a second glue injection opening is further formed between the second flow inlet channel and the part part cavity; the cross-sectional area of the second glue injection port from the second inflow channel to the part cavity is reduced in a gradient manner, and the area of the contact surface of the second glue injection port and the part cavity is as follows.

The invention discloses anacardol modified polymerized MDI, which is prepared by the following method: carrying out hydrolysis reaction on anacardol glycidyl ether under an acidic condition to generate anacardol derived diol; and then reacting the cardanol-derived diol with the polymerized MDI at the temperature of 75-80 DEG C. The invention further discloses polyurethane floor paint based on cardanol modified polymerized MDI. The polyurethane floor paint is prepared from a component A and a component B, the component A is hydroxyl-containing resin or polyol, and the component B comprises cardanol modified polymerized MDI. The floor paint is prepared by reacting cardanol modified polymerized MDI with a hydroxyl-containing substance, a cardanol side chain introduced by the cardanol modified polymerized MDI plays roles of'molecular diluent 'and'space shielding', and the reaction speed and system viscosity of the floor paint are reduced, so that the floor paint has excellent construction performance and low bubble characteristic. The invention further discloses a preparation method of the polyurethane floor paint based on the cardanol modified polymerized MDI.

The invention relates to the technical field of titanium alloy detection, and discloses a method for evaluating the component uniformity of a titanium alloy cast ingot, which comprises the following steps: step 1, carrying out high-temperature solid solution in a single-phase region, heating a cast ingot riser to T beta + (10-300) DEG C, carrying out heat preservation, and then carrying out rapid cooling; 2, first-stage low-temperature aging is conducted, specifically, heat preservation is conducted on the riser of the cast ingot cooled in the step 1 at the temperature of T beta-(200-400) or below, then the temperature is increased to T beta-(30-60) DEG C, and cooling is conducted after heat preservation; thirdly, beta spot heat treatment is conducted, specifically, the cast ingot riser cooled in the second step is subjected to heat preservation at the temperature of T beta-25 DEG C, and then cooling is conducted; 4, second-stage low-temperature aging is conducted, specifically, the cast ingot riser subjected to water cooling in the step 3 is subjected to heat preservation at 600-650 DEG C, and then cooling is conducted; and step 5, detecting macrostructures and macrostructures. The problems that in the prior art, in the titanium alloy cast ingot component uniformity detection process, the detection technology is complex, the precision is poor, and the evaluation cost is high are solved.

The invention discloses a dyeing process of tencel / flax blended yarn for light and thin denim fabric. The dyeing process comprises the steps of warp preparation and warp beam dyeing. Sequentially carrying out pre-wetting, multi-stage indigo dyeing, mild oxidation and alternate washing, post-treatment and drying; the warp beam dyeing is specifically as follows: warp yarns sequentially pass through a pre-wetting tank, at least four dyeing tanks, an oxidation zone, a rinsing tank and a post-treatment tank. By controlling the dyeing liquid to be alkalescent, low-temperature and low-tension technologies, chemical damage and physical stretching to tencel fibers are reduced, and fuzzing and broken ends are reduced. The pre-treated activated fiber and the gradient decreasing dye liquor concentration are matched with sufficient oxidation, the dye is promoted to diffuse into the fiber, the good dye penetration effect is achieved, the colored light is pure, and the color uniformity is guaranteed. And the weaving property of the yarn is improved through the post-treatment softening procedure. Due to hydrophilic softness and anti-wrinkle finishing, the yarn is soft and full in hand feeling and perfectly meets the comfort requirement of light and thin denim.

The invention relates to the technical field of titanium alloy phase transformation point detection, and discloses a titanium alloy cast ingot phase transformation point detection method, which comprises the following steps: 1, carrying out high-temperature solid solution, sampling at a cast ingot riser to obtain a plurality of samples, heating all the samples to T beta + (10-300) DEG C, carrying out heat preservation, and carrying out rapid cooling; (2) low-temperature aging: preserving heat of all the samples cooled in the step (1) below T beta-(200-400), then heating to T beta-(30-60) DEG C, preserving heat and then cooling; step 3, phase change point detection heat treatment: all the samples cooled in the step 2 are divided into multiple groups, the multiple groups of samples are subjected to heat treatment at the same time, the number of heat treatment temperature values is equal to the number of the sample groups, and all the heat treatment temperature values are distributed in a gradient mode with Tbeta as the center and equal difference values; and 4, detecting a phase change point, and evaluating the phase change point according to the content of the high microstructure. The problems that in the prior art, the titanium alloy phase transformation point detection technology is complex, and the detection precision is poor are solved.

The application discloses cilostazol dextrophan sublingual tablets and a preparation method thereof. The application effectively solves the technical bottleneck that cilostazol cannot be quickly dissolved due to poor solubility by optimizing the types and proportions of excipients; and by creatively adding sodium bicarbonate and citric acid, the dual technical targets of 'fast dissolution + high hardness' are unexpectedly achieved, the bioavailability of cilostazol is significantly improved, and the drug effect of cilostazol can be quickly exerted within the golden treatment period of acute cerebral stroke. Meanwhile, the drug composition process is good in feasibility, the prepared sublingual tablets are excellent in disintegration performance, can adapt to the drug administration needs of patients with dysphagia, completely meet the clinical application and pharmaceutical quality standards, and have significant clinical value and industrialization potential.

The invention discloses a kind of industrial production method for improving 2,4-difluoronitrobenzene, 1) nitration, 2) nitration post-treatment, 3) fluorination, opening the fluorination kettle feed valve, pumping in the intermediate product, vacuum dehydration until the water content is qualified, then pumping in an appropriate amount of organic solvent, opening the solid injection valve, putting in an appropriate amount of fluorinating agent, secondary vacuum dehydration until the water content is qualified, then filling to normal pressure with nitrogen; at the fluorination temperature, putting in an appropriate amount of catalyst, keeping warm at 80 ℃ to 200 ℃ for a certain time at the fluorination reaction temperature, sampling and detection until the fluorination reaction is complete; 4) fluorination post-treatment, 5) distillation. The present invention is safe and reliable in operation, has high feasibility of process operation, and has high product yield; through industrialized production practice, it is suitable for mass production; the product obtained by distillation of the present invention has high purity, and the main content is ≥99%.

The present application belongs to the technical field of ceramic-metal composite materials, and particularly relates to a gradient hardness composite ceramic pendulum and a preparation method thereof. The preparation method comprises the following steps: S1, pretreating ceramic particles respectively; S2, after three kinds of ceramic particles are fully mixed with a specific proportion of reactive metal binder, pore-forming agent and inorganic binder, the ceramic particles are layered and filled into a mold with a conical hole in the order of fine, medium and coarse, and after compression molding, drying and two-stage sintering, a ceramic preform is obtained; S3, preheating the preform; S4, pouring smelted high-toughness alloy liquid into a casting mold and performing pressure-assisted casting infiltration; S5, after the casting is cooled, sand dropping, cleaning and heat treatment are performed; and S6, necessary mechanical processing is performed. The prepared pendulum has a hammer head end face with a gradient composite layer with continuously decreasing hardness from the surface to the inside, which effectively relieves interface stress concentration, improves impact resistance and wear resistance, and realizes metallurgical bonding of the ceramic and the metal.

The application relates to the technical field of curtain wall and special-shaped section processing, and particularly discloses a double-curved stretch bending processing technology, which comprises the following steps: performing stretch bending evaluation through three-dimensional modeling and a BIM system; performing section optimization on a mold drawing and storing the mold drawing; designing a processing mold according to model parameters; manufacturing a filling strip according to a negative tolerance and installing a chuck mold; performing stretch bending forming and automatic springback compensation through numerical control equipment; comparing and correcting through three-dimensional scanning; performing profiling detection and correction on a special jig; performing aging treatment to improve material performance; performing surface treatment and protection; and uploading full-process data to a cloud platform to realize traceable management. Through the integration of digitalization and intelligentization technology, the application realizes high-precision and batch manufacturing of double-curved and special-shaped sections, and effectively solves the problems of difficult precision control and unstable quality in traditional processes.

The invention provides a process for manufacturing a high-density fine-line flexible circuit board by etching and then plating copper, which comprises the following steps of: selecting a non-adhesive flexible copper-clad plate of which the copper foil thickness is 6 microns, 9 microns, 12 microns or 18 microns, and processing a positioning hole, an element hole, a via hole and a blind hole through numerical control drilling or laser drilling; a dry film double-sided laminated copper-clad plate with the thickness of 20 [mu] m or 25 [mu] m is adopted, exposure is carried out through a laser direct imaging technology and an automatic alignment laser direct writing device, then developing, etching and film stripping procedures are sequentially completed through a vacuumizing etching machine, a semi-finished product with thin lines on the two sides is obtained, and the line width distance of the thin lines can reach 0.0125 mm or above. By adopting a reverse process of etching first and then plating copper, and by utilizing the characteristic that the original thin copper foil (6-18 microns) is easy to etch, the thin circuit with the line width distance of 0.05 mm or below and even 0.0125 mm or above can be accurately manufactured, and the problem that the thick copper foil is difficult to etch the superfine circuit in the traditional process is solved.

The present invention relates to a gas cylinder air tightness test device and method for use in a low-temperature environment, the test device comprising: a helium gas cylinder and a cryogenic medium tank; a filter, a first stop valve, a booster pump, a first safety valve, a first pressure gauge, a second stop valve, a first gas precooler, a second gas precooler, a cooling coil and a gas cylinder to be tested, and a gas outlet and a gas inlet forming a circulation loop in the second gas precooler, which are sequentially connected to the helium gas cylinder through a metal hose; a third stop valve, a cryogenic pump and a cryogenic medium input port, a cryogenic tank connected to the cryogenic medium input port, a cold screen fixedly connected to the cryogenic tank, a temperature gauge connected to the cryogenic tank, a second pressure gauge and a second safety valve. The test device of the present invention is simple and easy to design, does not need to be equipped with a large cooling device, has good process feasibility, low implementation cost, high heat exchange efficiency, and high accuracy of test results.

This invention provides a plant-based meat product and its preparation method, comprising the following raw materials: 30 parts by weight of textured soy protein, 10-40 parts by weight of pre-cooked emulsion A, and 30-55 parts by weight of emulsion B, wherein the shear strength of the soy protein fibers is 1500-1800 g, preferably 1700-1800 g; emulsion A includes soy protein concentrate and food polysaccharides; emulsion B includes egg white protein and plant protein, wherein the plant protein is selected from one or more of soy protein isolate, pea protein, peanut protein, and wheat protein, preferably soy protein isolate and / or pea protein. The plant-based meat product obtained in this way can achieve a texture very similar to commercially available sausages. This invention does not require the use of transglutaminase, requires no special processing technology, only requires the classification and processing of different raw material components, is simple to operate, has high process feasibility, and low production cost.