24results about How to "Reduced post-processing" patented technology

The embodiment of the invention provides a data transmission method and device, equipment and a storage medium. A receiving end receives target data sent by a sending end; verifying a plurality of to-be-verified data packets in the target data, and determining the to-be-verified data packets passing the verification as first data packets; combining the plurality of first data packets into verification data; and comparing the verification data with the target data, determining whether the verification data is consistent with the target data, and further judging whether the target data is successfully transmitted. The receiving end in the embodiment of the invention ensures data consistency, reduces data loss or damage and improves transmission reliability by verifying the data packets to be verified, timely finds errors by comparing the verification data with the target data, avoids further processing of error data, improves transmission accuracy, and improves the transmission efficiency by subpackage verification and combination and parallel processing of a plurality of data packets. The verification time is reduced, and the transmission efficiency is improved.

The invention belongs to the technical field of organic synthesis of pesticides, and discloses a synthesis method of difluopyrazole acid, ester thereof and an intermediate of the difluopyrazole acid. The synthesis method of the intermediate of the difluopyrazole acid or ester comprises the following steps: reacting a compound I shown in a formula (I) with a chlorinating agent to obtain a compound II shown in a formula (II); taking the compound II and formaldehyde, and adding an alkaline reagent to react to obtain a compound III as shown in a formula (III); and taking the compound III and hydrogen, and adding a catalyst to react to obtain the intermediate of the difluopyrazole acid or ester as shown in the formula (IV). The intermediate of the difluropyrazole acid or the difluropyrazole ester is used in a synthesis method of the difluropyrazole acid and the difluropyrazole ester, and efficient synthesis of the difluropyrazole acid and the difluropyrazole ester is achieved. The synthesis method disclosed by the invention is simple and convenient to operate, can still obtain higher product quality and has high conversion rate through multi-step continuous feeding, generates few three wastes, is environment-friendly, and is suitable for green large-scale production.

The invention discloses a 3D printing method with a coating supporting structure and a supporting assembly, and belongs to the technical field of additive manufacturing. According to the method, a traditional thought of printing a second structural material is abandoned, a functional coating used for reducing the binding force is innovatively arranged on the upper surface of a formed supporting structure, and then a workpiece is printed on the coating. The coating provides temporary bonding force in the printing process so as to stabilize a workpiece, and after printing, the bonding force is greatly weakened so that the support can be easily peeled off. The invention further provides a post-processing G code program for realizing the method and an integrated gluing device, and the post-processing G code program and the integrated gluing device can realize the expansion and contraction of the refill through mechanical triggering by utilizing the movement of the printer without additional driving. The support assembly is a ready-to-use component which is pre-coated with the coating. According to the method, the contradictions of poor supporting quality of a single material and high supporting cost of multiple materials are fundamentally solved, stable printing, easy removal and high interface quality are realized on the premise of not increasing the types of printing materials and not depending on multi-nozzle equipment, the cost is remarkably reduced, and the efficiency is improved.

The utility model discloses a submarine gate mechanism of a mold, which comprises a lower mold plate, supporting seats arranged on two sides of the top end of the lower mold plate, a base fixed on the top end of the lower mold plate between the supporting seats, a lower mold seat fixed on the top ends of the two supporting seats, a lower mold arranged on the top end of the lower mold seat, and an upper mold arranged above the lower mold, the bottom end of the upper mold makes contact with the top end of the lower mold, an upper mold plate is fixed to the top end of the upper mold, a pouring mold head is installed in the center of the top end of the upper mold plate, a protective cover is arranged at the top end of the upper mold plate on the outer side of the pouring mold head, a connecting belt is arranged on the outer wall of one side of the protective cover, and a cover plate is installed at the end, away from the protective cover, of the connecting belt. And an inserting ring is mounted at the edge position of the inner wall of the cover plate. According to the pouring gate mechanism, the phenomenon that external particulate matter flows into the upper die cavity and the lower die cavity to cause erosion is reduced, the production efficiency of products is improved when the pouring gate mechanism is used, and the convenience is improved when the pouring gate mechanism is maintained.

The invention discloses a continuous blanking method for multiple workpieces, which comprises the following steps of: connecting workpiece profile diagrams end to end along the direction of a symmetry axis, alternately deleting profiles on one side of the symmetry axis of the workpiece profiles, jointing to form a continuous S-shaped curve, and mirroring the curve to obtain a complete single-row lining cloth cutting line. According to the method, the blanking efficiency of the circular lining cloth is improved.

The invention relates to the technical field of manufacturing of lyocell filaments, in particular to a manufacturing method of colored lyocell filaments, and aims to solve the problem of low color fastness caused by the fact that an existing jeans wear fabric is manufactured by adopting a process of weaving and then dyeing. According to the present invention, the dyeing agent is added in the lyocell filament spinning solution preparation stage so as to prepare the stable colored spinning solution, the color fixation is completed during the spinning process, and then the colored filament is used to spin the cloth, such that the color fastness is high, the cloth with the target color can be prepared by using the less dye through the method, and the good development prospect is provided.

The application discloses a kind of 3D printing equipment and printing method of magnetic control microsphere space lattice, it is related to printing forming technical field, equipment includes printing station, drive mechanism, sintering mechanism, control mechanism and at least one grabbing head;Printing station is used to stack multiple loose magnetic microspheres as support medium;Grabbing head is used to grab each forming magnetic microsphere, and can be released to the predetermined spatial position above the support medium of printing station;Drive mechanism is connected with grabbing head, and is used to drive grabbing head to move in space;Sintering mechanism is used to sinter the adjacent forming magnetic microsphere on printing station;Control mechanism is connected with grabbing head, drive mechanism and sintering mechanism, and can control the action of grabbing head, drive mechanism and sintering mechanism respectively.The 3D printing equipment and printing method of magnetic control microsphere space lattice provided by the application improve printing efficiency, material utilization and forming piece performance.

The invention relates to the technical field of traditional Chinese medicine compositions, in particular to a traditional Chinese medicine composition for treating deep venous thrombosis. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 5-8 parts of modified traditional Chinese medicine sustained release microspheres, 2-3 parts of a traditional Chinese medicine compound extract, 15-23 parts of modified polyacrylamide, 5-7 parts of chitosan and 40-60 parts of deionized water, 10-15 parts of astragalus membranaceus, 3-5 parts of peach kernels, 8-12 parts of rhizoma atractylodis, 4-6 parts of salvia miltiorrhiza, 1-2 parts of radix ophiopogonis, 4-7 parts of pseudo-ginseng and 5-8 parts of ligusticum wallichii are taken, traditional Chinese medicine effective components are extracted through water extraction, organic solvent extraction and fermentation, and the prepared traditional Chinese medicine composition can effectively treat deep venous thrombosis.

The invention discloses a method for preparing 18-crown-6, which comprises the following steps: under stirring, tetrahydrofuran or 1,4-dioxane is added to a reaction bottle containing triethylene glycol and potassium hydroxide; p-toluenesulfonyl chloride is then added dropwise to the reaction bottle, the reaction temperature is controlled to be 30-80°C, and the reaction time is 2-6h; a separating agent is added to the reaction solution to separate the potassium p-toluenesulfonate by-product, the reaction temperature is controlled to be 70-100°C, and the reaction time is 3-6h; the obtained solution is filtered, concentrated, and vacuum distilled, and the distilled liquid is washed with distilled water and stratified, and the lower layer solution is centrifuged and precipitated, and the precipitate is dried to obtain 18-crown-6. The preparation method of the present invention is simple, and while ensuring a higher reaction rate and a reactant conversion rate, it also simplifies subsequent separation operations, reduces subsequent processing links, and ensures the purity of the final product.

The utility model belongs to the technical field of paper towel box, specifically disclose a novel paper towel box of square structure, including lid, decoration piece and base, the lid includes top plate and the side plate of bending forming in each side of top plate, the side plate between each side is surrounded and forms the inner chamber with the opening, decoration piece is equipped with a plurality, every decoration piece sets up between two adjacent side plates, and the decoration piece includes the two page board of integrated moulding, and the two page board is connected fixedly with two side plates respectively, and the base sets up in the opening. The whole is novel square structure, can reduce the production cost while guaranteeing the beautiful of paper towel box.

The application discloses a kind of zero shrinkage high-strength high-modulus SMC materials and its preparation method and application, including the following weight parts of preparation raw materials: unsaturated polyester resin 30-50 parts, high-modulus polyester resin 25-35 parts, low shrinkage control agent 25-35 parts, curing agent 1-2 parts, release agent 4-6 parts, spherical filler 125-185 parts, thickening agent 1-3 parts, glass fiber mat 20-50 parts, short-cut glass fiber without alkali 60-100 parts.The application uses polyurethane modified PMMA as low shrinkage control agent, and simultaneously uses glass fiber mat and short-cut glass fiber to jointly construct sandwich sheet structure, through the synergistic effect between chemical modification of low shrinkage agent and enhanced structure, the prepared SMC material reaches the practical sense of zero shrinkage, shrinkage rate≤0.01%, solves the assembly gap and warping deformation problem caused by shrinkage of large parts, and simultaneously realizes the synergistic promotion of high strength and high modulus, and realizes free polishing direct spraying.

The application belongs to the field of glass bottle recycling, in particular to a full-automatic glass bottle recycling and sorting device and process, which comprises a protective shell, a horizontally arranged rotary disc is rotationally connected to the middle of the protective shell, a plurality of hammer blocks are fixedly connected to the outer side of the rotary disc, a motor transmission part for driving the rotary disc to rotate is installed on the outer side of the protective shell, a recycling box is installed below the protective shell, a plurality of blocking rods are installed inside the protective shell below, the top of the recycling box is in communication with the bottom of the protective shell, an inclined sieve plate is installed in the recycling box, a plurality of sieve holes are formed in the top surface of the sieve plate, through this kind of setting, the metal rubber part and the glass fragment part can be recycled respectively, the subsequent classification process is facilitated, the multiple crushing ensures that the glass fragments can reach the required diameter size, and greatly reduces the problem that the glass fragments of different sizes affect the subsequent recycling and use.

The present invention relates to a method for synthesizing abemaciclib, comprising the following steps: (1) using a compound of formula III as a raw material, adding compounds of formula III-1 and formula II-1, water, a catalyst and a base, and obtaining a compound of formula I through post-treatment and purification; (2) dissolving the compounds of formula I and formula I-1 in a solvent, adding a base, and obtaining a compound abemaciclib; (3) dissolving abemaciclib in a solvent, adding methanesulfonic acid to form a salt, obtaining a crude methanesulfonate, and obtaining abemaciclib methanesulfonate after recrystallization in a solvent; the reaction equation is as follows: The present invention provides a method for synthesizing abemaciclib with low cost, low by-products, high conversion rate, economy and environmental protection, which reduces the use of heavy metal catalysts and phosphine ligands, realizes a two-step reaction by a one-step continuous reaction, reduces post-processing operations, and saves costs.

The invention belongs to the field of printing supplies, and relates to a silk screen plate making technology, in particular to a heat transfer printing coating belt and a manufacturing method thereof. The invention relates to a heat transfer printing coating tape which sequentially comprises a heat-resistant protective layer, a PET (Polyethylene Terephthalate) film, a release layer and a POE (Polyolefin Elastomer) layer from top to bottom. After the thermal transfer printing coating tape is printed, a POE layer is formed on the surface of a screen printing plate, and the screen printing plate can be used for printing oil-based ink and water-based ink. The heat transfer printing coating tape comprises a heat-resistant protective layer, a PET (polyethylene terephthalate) film, a release layer and a POE (polyolefin elastomer) layer. The POE has good affinity with the silk screen after being molten, and is convenient for transfer printing, so that the silk screen does not need to be coated with resin, and the post-processing treatment of the silk screen is reduced.

The invention belongs to the technical field of preparation and application of surfactants, and particularly relates to a method for preparing glycosylglycerol by a chemical method. Glycerol and glucose are used as raw materials, and aldolization is performed under the condition of an acid catalyst to prepare the glycosylglycerol. According to the method for preparing the glycosylglycerol product, the reaction is homogeneous reaction, the reaction is low in time consumption and energy consumption, the content of residual sugar is low, the sugar conversion rate is high, the cost is low, and the method is suitable for large-scale production.

The utility model discloses a kind of spraying devices for steel structural member production, including connecting shell, the modular mechanical arm is set in the connecting shell inside bottom end, further including the three-way adjusting mechanism being set on modular mechanical arm, the spraying mechanism is set in the front end of three-way adjusting mechanism, a kind of spraying device for steel structural member production, by spray head, centrifugal fan, flexible baffle and negative pressure recovery air duct, ensure that stable negative pressure field is formed before coating atomization, timely capture atomized particle, prevent paint mist from spreading to workshop environment, reduce the risk that operator inhales paint mist, simultaneously avoid the explosion hidden danger caused by flammable gas accumulation in workshop, cooperate primary filter device and paint mist separation equipment, solvent-based coating after separation can be recycled, water-based paint can be treated and discharged up to standard, reduce hazardous waste disposal quantity, reduce environmental protection compliance cost, efficiently recover splashed coating, reduce material loss.

The invention belongs to the technical field of ion exchange membranes of flow batteries, and provides a polymer porous membrane for a flow battery as well as a preparation method and application of the polymer porous membrane. The preparation method comprises the following steps: (1) dissolving a polymer in an organic solvent to prepare a resin solution; (2) adding a soft template additive into the resin solution, and uniformly stirring to obtain a film-making solution, the soft template additive accounting for 1-40% of the mass fraction of the film-making solution; and (3) defoaming the membrane preparation liquid, casting to form a membrane, heating and volatilizing to obtain the polymer porous membrane for the flow battery. When the polymer porous membrane is used for the flow battery, the non-fluorine ion exchange membrane is selected, so that the problems of high manufacturing cost, low permeability and the like of perfluororesin are solved; on the basis, a soft template is introduced, the soft template is mixed with a resin solution when a membrane preparation solution is prepared, and an upper-layer pore channel structure can be effectively adjusted in a solvent evaporation process by utilizing density difference and intermolecular acting force, so that relatively good mechanical performance and relatively low ion transmission resistance are obtained; and a compact layer with controllable thickness is formed on one side or two sides, so that the ion selective permeability of the polymer film can be effectively improved.

The application belongs to the technical field of additive manufacturing, and particularly relates to an additive manufacturing method based on partition process optimization and compensation, which comprises the following steps: S1, classifying parts and dividing different parts into different printing areas; S2, separately configuring process parameters for the lower surface area, layer by layer model slicing for the compensation area, and judging whether any model slice needs compensation; S3, separately printing multiple different areas based on respective process parameters; S4, performing structural bias compensation and optical compensation on the printed model based on the actual size of the part; and S5, detecting the upper surface of the part as a machining reference surface. The method of the application can meet the use requirements of high-end manufacturing for precision parts without additional support, not only reducing the consumption of metal powder, but also avoiding damage to the surface of the part in the support removal process, and improving manufacturing efficiency.

The application provides a polyalkylene imine and a preparation method thereof, and belongs to the field of high polymer materials. The method uses azepane as raw material and performs polymerization under the action of chloro ferric acid ionic liquid initiator. By controlling the acidity of the chloro ferric acid ionic liquid, the dosage, the concentration of azepane, the solvent, the polymerization temperature and the time, the control of the polymerization degree of the material can be effectively realized, and the corresponding polyalkylene imine material is formed. The method has the following advantages: (1) the reaction condition is mild, and high temperature and high pressure conditions are not needed; (2) the raw material conversion rate is as high as 99% or more, and the polymerization material is basically odorless; (3) the product has wide application range, and can be used in the polymerization reaction of azepine, azetidine, alkyl-substituted azepine, alkyl-substituted azetidine and other materials; (4) the obtained material has wide application in the fields of flocculants, corrosion inhibitors, liquid crystal polymers, coating layers, gel-type water shutoff agents, drug carriers and gene transfection.

This invention discloses a method for preparing a crude isocyanate product with low copper content. The method uses copper-consuming substances and an inert solvent suitable for phosgenation processes as copper removal additives. The steps include: removing unreacted phosgene from a photochemical reaction solution containing isocyanate, phosgene, and other impurities; mixing the photochemical reaction solution with the unreacted phosgene removed and the copper removal additive, and performing a complexation reaction under ultrasonic conditions; cooling the resulting reaction solution to precipitate Cu complexes, followed by solid-liquid separation; stripping the liquid phase after solid-liquid separation with hydrogen chloride, and then removing the inert solvent under reduced pressure to obtain a crude isocyanate product with low copper content. After treatment by the above method, the copper impurity content in the crude isocyanate product is less than 3 ppm, thereby effectively improving product quality, reducing system blockage problems in subsequent separation processes, and the process is simple and has low operating costs.

The invention discloses a continuous preparation process of nitro-alcohol, which comprises the following steps: S1, placing a catalyst N in a polycondensation reactor, then pressurizing a formaldehyde solution, a reaction solvent and nitro-alkane respectively by using a pressure pump, uniformly mixing at a position close to an inlet of the reactor, and conveying the mixture into the polycondensation reactor, s2, controlling the pressure in the polycondensation reactor to be 0.05-0.2 Mpa, and S3, after the reaction is finished, collecting a nitro alcohol reaction solution at the outlet of the reactor; and collecting the nitro-alcohol reaction liquid flowing out of the outlet of the reactor, and detecting to obtain the nitro-alcohol with the yield of 99.61%. The adopted self-made modified catalyst N has the characteristic of improving the stability of the reaction product nitro-alcohol and reducing the decomposability of the nitro-alcohol, the service life of the catalyst is greatly prolonged, continuous operation can be performed for 3-6 months, the risk that impurity salts are generated by adopting acid neutralization after the condensation reaction is finished by adopting a homogeneous base catalyst is avoided, the post-treatment procedures are reduced, and the production cost is reduced. And meanwhile, the production cost is also reduced.

The invention discloses a selective hydrolysis preparation method of PHS (Polyhydroxystyrene) resin for photoresist, which comprises the following steps: by taking poly (p-acetoxystyrene) and a copolymer thereof as raw materials and alcohol, alkyl, ester, ether and the like as solvents, carrying out hydrolysis reaction at the temperature of 30-80 DEG C under the action of a catalyst, thereby preparing the poly (p-acetoxystyrene) and the copolymer thereof, an amino or sulfonic MOFs material is used as a catalyst. And selectively hydrolyzing the poly (p-acetoxystyrene) and the copolymer thereof to prepare the poly (p-hydroxystyrene) and the copolymer resin thereof. The method has the advantages of efficient catalysis, reduction of impurities in a finished product, improvement of product quality, simplification of post-treatment, reduction of cost and selective hydrolysis.

The invention discloses an efficient improved four-wheel drive boat tractor, and relates to the field of boat tractors. The ship comprises a ship body, a driving assembly, a cutting assembly, a power assembly, an adjusting assembly and a turbulent flow assembly. The driving assembly and the power assembly are both arranged in the ship body, the cutting assembly, the adjusting assembly and the turbulent flow assembly are all arranged below the ship body, the driving assembly is connected with the cutting assembly, and the power assembly is connected with the adjusting assembly and the turbulent flow assembly. The belt wheel system drives the two driving gears to rotate and drives the two driven gears to rotate respectively, then the adjusting device is driven to rotate through the connecting shaft, a certain angle is formed between the straight section of the adjusting device and the ship body, the inclined section of the adjusting device becomes parallel to the ship body, the cut crops make contact with the rolling wheel, and the rolling wheel gathers the inclined section and the crops in the middle. And the crop harvesting efficiency is improved.

The application relates to the technical field of composite product manufacturing, in particular to a honeycomb pouring and sealing system and a pouring and sealing method, the honeycomb pouring and sealing system comprises a mold, a honeycomb, a flow guide transmission mechanism and a stop block, a vacuum bag is arranged above the honeycomb, a sealing rubber strip connected with the vacuum bag is arranged outside the stop block and surrounds the honeycomb, joints for connecting a vacuum pump or a glue injection mechanism are arranged at intervals in a pouring and sealing area on the honeycomb, the flow guide transmission mechanism comprises a bottom peelable cloth arranged below the honeycomb and a bottom air guide grid plate arranged below the bottom peelable cloth, the flow guide transmission mechanism further comprises a top peelable cloth arranged above the honeycomb and a top flexible flow guide net arranged above the top peelable cloth, and the application also discloses a pouring and sealing method using the system, the application realizes precise coupling of component size and process parameters, ensures the improvement of pouring and sealing quality and efficiency, and needs strict monitoring of parameter execution in actual application, and the parameters are fine-tuned and optimized according to the structural characteristics of the honeycomb.