38results about How to "Flexible process" patented technology

The invention discloses a preparation method of a water reaction type cold patch asphalt mixture. Belongs to the technical field of road engineering materials, and is prepared by the following steps: (1) adding a diluent and a single-component moisture-curing polyurethane prepolymer into matrix asphalt according to a certain proportion to prepare a reaction type asphalt mixed solution with low viscosity and fluidity at normal temperature, and (2) mixing with mineral aggregate to prepare the cold patch asphalt mixture for normal-temperature construction. According to the prepared cold patch asphalt mixture, the single-component moisture-cured polyurethane prepolymer is subjected to curing reaction after being in contact with moisture in water or air to form a cross-linked network structure, so that the strength of the asphalt mixture is greatly improved, and the cold patch asphalt mixture is excellent in water resistance and durability.

The invention relates to the technical field of surface engineering, in particular to a method for depositing a W / WCx coating on the surface of stainless steel and a stainless steel product prepared through the method. The method comprises the following steps: S1, depositing a metal transition layer on the surface of a stainless steel substrate; s2, performing diffusion heat treatment on the stainless steel substrate deposited with the metal transition layer in inert gas at 550-800 DEG C; s3, a pure tungsten layer is deposited on the surface of the metal transition layer obtained after diffusion heat treatment; and S4, depositing a W / WCx composite coating on the surface of the pure tungsten layer. The metal composite coating is deposited after the plating layer is subjected to diffusion heat treatment, the surface hardness of the stainless steel can be remarkably improved, and the hardness value of the stainless steel can be four times or above that of traditional stainless steel; the binding force of the metal transition layer and the stainless steel substrate is larger than 120 MPa, the tungsten-containing coating can be effectively prevented from cracking, and the risk of coating stripping is avoided.

The invention discloses a preparation method of a wear-resistant coating on the surface of a planetary ball screw, and relates to the technical field of preparation of wear-resistant coatings. The preparation method of the wear-resistant coating on the surface of the planetary ball screw specifically comprises the following steps: S1, cleaning a substrate; s2, mounting a substrate; s3, ion cleaning is conducted, specifically, a glow cleaning process and a high-energy ion cleaning process are sequentially conducted for cleaning; s4, preparing a Ti binding force layer; s5, preparing a TiN transition layer; s6, a TiAlSiN nano coating is prepared; s7, sampling, wherein a sample is taken after 60-90 min after coating preparation is completed; the wear-resistant coating has the characteristic of integration of high strength and toughness, the prepared coating has high uniformity, and the process of the coating is flexible and adjustable. In addition, the pipe inner wall coating prepared through the method is high in deposition rate, easy and convenient to operate, low in cost and suitable for batch production.

The utility model belongs to the technical field of flue gas treatment and environmental protection, and particularly relates to a temperature control heat recovery type flue gas CO removal device which is characterized by comprising a flue gas standby heater, a flue gas pretreatment unit, a catalytic reaction unit, a solid waste recovery unit and a heat recovery temperature control system. A diffused gas induced draft fan is used as a power source, and smoke flows along the device from bottom to top and then is discharged to a chimney; the catalytic reaction unit comprises an upper bed layer and a lower bed layer, a first heat recovery layer is arranged behind the first catalytic bed layer, a second heat recovery layer is arranged behind the second catalytic bed layer, and each catalytic bed layer is filled with a plurality of layers of honeycomb type catalysts. The device has the beneficial effects that multi-layer catalysis, intelligent temperature control and no pollutant generation and leakage are realized, the configuration number and form of the catalytic beds can be flexibly adjusted according to the CO content in the flue gas, meanwhile, the reaction heat in the flue gas is further recycled, and finally, the cooperative treatment of pollution reduction and carbon removal is realized.

The invention relates to the technical field of optical transceivers, in particular to a debugging method for radio frequency signal detection in a radio frequency optical transceiver based on network communication, which comprises the following steps of: designing a network communication interface of a network management board program for measuring, writing and reading a power sampling meter, and sending the power sampling meter to a radio frequency service board program through the network interface; and the data is stored in the Flash in the microcontroller according to a specific format. After a program is started, a power sampling table is identified and loaded, and a detection value is calculated by looking up the table. According to the method, when the power sampling meter needs to be modified every time, the radio frequency service board does not need to be detached from the whole machine, and the structural tightness of the whole machine cannot be damaged; a business board program does not need to be updated by using a professional tool, the power sampling meter can be updated online and remotely by production debugging personnel through PC (Personal Computer) upper computer software, and equipment maintenance is carried out during operation; in the batch production process, complete machine assembly can be carried out firstly, then detection waves of all radio frequency service boards in the radio frequency optical transceiver are measured and written in together, and the efficiency is improved.

The invention provides a wear-resistant coating for the inner wall of a slender pipe and a preparation method of the wear-resistant coating, and belongs to the technical field of wear-resistant coatings for pipelines. The method comprises the following steps: firstly, cleaning a slender tube, then placing an ion source in the center of the slender tube, placing a target material in the slender tube, sealing two ends of the slender tube, and arranging a vacuumizing loop and a gas loop to obtain the tubular magnetron sputtering device; and then the tubular magnetron sputtering device is sequentially subjected to ion cleaning, a binding force layer and a nano coating are prepared, the wear-resistant coating is obtained, and the binding force layer and the nano coating are prepared through a high-power pulse magnetron sputtering technology or a deep oscillation magnetron sputtering technology. According to the prepared wear-resistant coating, the nano hardness is 15-45 GPa, the H / E * is larger than or equal to 0.1, the uniformity is larger than or equal to 96%, the H3 / E * 2 is larger than or equal to 0.3, the Rockwell indentation binding force is larger than or equal to HF1, the fracture toughness KIC is larger than or equal to 3 MPa.m < 1 / 2 >, and the friction coefficient is smaller than or equal to 0.3.

The invention provides a phthalocyanine sulfonamide derivative dye as well as a preparation method and application thereof, and belongs to the technical field of phthalocyanine series dyes. The structural general formula of the phthalocyanine sulfonamide derivative dye is (PC)-(SO2-N-X) z-(SO3R) y, PC is a phthalocyanine or metal phthalocyanine group, X is hydrogen, C1-C14 alkyl, hydroxyalkyl, aralkyl or aromatic group, R is hydrogen, C1-C4 alkyl or amine salt cation, the value range of z is 1-4, the value range of y is 1-3, and the sum of z and y is less than or equal to 4. According to the invention, the sulfonamide group and the sulfonic acid group are introduced at the same time, so that the prepared derivative dye has excellent organic solvent solubility and water solubility, and the problem of single solubility of the traditional zinc phthalocyanine dye is effectively solved.

This utility model discloses an intermediate standard and an automated scanner calibration system. The intermediate standard is used in the calibration of 3D scanners. The intermediate standard includes a main body and recognition heads. An annular recognition area is provided on the main body. Several recognition markers are provided within the annular recognition area for recognition by a scanner located above the main body and a tracker located at any point around the main body. Several recognition heads are provided on the main body, protruding from the main body in the height direction. Several recognition markers are provided on the outer surface of each recognition head, and the tracker can recognize some of the markers on the recognition heads at any point around the main body. The design of the annular recognition area and recognition heads reduces the limitations on the placement of the tracker and scanner in the calibration process, making the formulation of the automated calibration process more flexible and improving the applicability and versatility of the intermediate standard and this calibration system.

The invention relates to the technical field of asphalt production, in particular to an asphalt mixture production process. The production process comprises a full-regeneration production process, a partial-regeneration production process and a full-native production process. In the full-regeneration production process, the regenerated material is preheated and then heated, the heated regenerated material is prepared into a regenerated material finished product, flue gas generated by preheating is purified and then sent to a heating section for primary combustion, and after primary combustion, the flue gas returns to a preheating section for secondary combustion; in the partial regeneration production process, a regenerated material and a raw material are heated respectively and then are used for preparing a partial regeneration finished product; in the whole-native production process, a raw material is heated and then is used for preparing a whole-native finished product. The production process can be flexibly adjusted according to actual production requirements, the production cost is saved, the construction cost is greatly reduced, considerable social benefits and economic benefits are achieved, discharged waste gas meets the emission standard, and energy conservation and environmental protection are achieved.

The invention relates to the technical field of machining, and provides a flexible machining system and a shell machining method.The flexible machining system comprises a first numerical control vertical lathe, a second numerical control vertical lathe, a first horizontal machining center, a first pound press and a first laser marking machine; the first horizontal machining center is provided with a face milling cutter, an inner hole milling cutter, a side face groove milling cutter and a facing head. A horizontal machining center clamp is arranged on the first horizontal machining center. The device is complete in type so as to meet various process requirements, the machining efficiency and the product precision are improved, and the machining difficulty of the inner cavity inclined hole is reduced.

The utility model discloses an elastic adhesive feeding device which comprises a plurality of raw material boxes, a processing support, a carrying box, a pair of side wall shafts and a reaction kettle, and relates to the technical field of elastic adhesive production, key steps such as automatic carrying, metering and mixing of raw materials are achieved in the whole process, and the production efficiency is greatly improved. Raw materials are guided to the carrying box through the automatic feeding structure, then horizontally rotated and vertically lifted through the rotary carrying structure and finally poured into the reaction kettle, automation of raw material feeding is achieved, and complexity and time consumption of manual operation are reduced; due to the automatic process, direct contact between workers and strongly alkaline substances is reduced, and therefore the risk of injury is reduced. In addition, through accurate metering and feeding, production accidents caused by improper raw material proportioning or feeding errors are also avoided; rotation, lifting, stretching and retracting and other actions involved in the process are accurately controlled through a motor and a driver, and the accuracy and stability of raw material feeding are ensured.

The invention relates to a moderator-containing fuel element which comprises a shell and a core block, the core block is packaged in the shell and comprises fuel particles distributed in a moderator in a dispersed mode, and the shell is a ceramic shell or a metal shell and is composed of a shell body and a cover body which are connected in a sealed mode. The invention further relates to a preparation method of the fuel element containing the moderator. According to the fuel element containing the moderator, the shell is prepared through the hot pressing sintering or additive manufacturing forming technology, then the heat treatment technology is combined, densified packaging of the moderator and the fuel is achieved, and the problems that the moderator and the fuel are prone to oxidation and corrosion in the using process are solved; and the design requirements of advanced nuclear reactor types on moderator-containing fuel elements are met.

The invention discloses a low-temperature sintered and low-loss manganese zinc ferrite material and a preparation method thereof, and the preparation method comprises the following steps: (1) uniformly mixing Fe2O3, Mn2O3 and ZnO powder, and carrying out mechanical ball milling in water; pre-sintering at the temperature of 850-950 DEG C to obtain a ferrite pre-sintered material; (2) adding a sintering aid containing V2O5 and Al2O3 into the ferrite pre-sintered material to obtain a mixture, and then performing plasma-assisted ball milling to obtain refined powder; preparing a green body sample; and (3) carrying out low-temperature sintering on the green body sample in a nitrogen atmosphere at the sintering temperature of 1050-1250 DEG C for 2-5 hours, and then cooling to obtain the manganese-zinc ferrite material. According to the invention, the densified sintering of the ceramic material is realized at a relatively low temperature (-1200 DEG C) by adding the specific sintering aid and combining with plasma-assisted ball milling, and the power loss value in a relatively wide range is lower than 300kW / m < 3 >.

This invention discloses a rapid annealing apparatus and method for micro / nano-scale metal samples. A metal indenter and a micro / nano-scale metal sample are prepared separately. The micro / nano-scale metal sample is placed at the fixed end of an electromechanical sample rod, while the metal indenter is mounted on the movable end, with the two ends facing each other without contact. Under a transmission electron microscope, the metal indenter is aligned and brought closer to the sample by a piezoelectric ceramic drive. After the indenter and the micro / nano-scale metal sample reach critical contact, several pulsed currents are applied. Then, by controlling the displacement of the piezoelectric ceramic, the cyclic movement of the metal indenter is achieved, thereby applying a constant strain amplitude of pressure-pressure cyclic loading to the micro / nano-scale metal sample. Then, pulsed currents are applied again, and this process is repeated multiple times, thus achieving rapid annealing of the micro / nano-scale metal sample using electromechanical coupling. The micro / nano-scale metal sample annealing method of this invention allows for in-situ observation at the micro / nano scale, with controllable parameters, high success rate, high efficiency, and good stability.

The utility model discloses an on-chip integrated collimation optical device, comprising a wafer, the surface of which is provided with a plurality of light-emitting areas arranged periodically; the adhesive layer covers the surface of the wafer, optical structures in one-to-one correspondence with the light-emitting areas are distributed on the outer side of the adhesive layer, the optical structures are used for collimating or collecting light beams emitted by the light-emitting areas, and the thickness T of the adhesive layer between the optical structures and the light-emitting areas is 10-500 microns; according to the on-chip integrated collimation optical device, through the innovative on-chip integrated design, the technical bottlenecks that a traditional collimation device is large in size, complex in alignment, high in cost and the like are solved, and remarkable breakthrough is achieved in the aspects of optical performance, production efficiency, application scenes and the like.

The invention belongs to the field of chemical purification, and relates to a method for refining ultra-pure lithium bis (fluorosulfonyl) imide, which comprises the following steps of: adding a crude product of lithium bis (fluorosulfonyl) imide with the mass percentage of more than or equal to 90 percent into a crystallizer, heating until the crude product is completely molten into a liquid state, controlling the cooling rate at 5-20K / h, cooling to 90-120 DEG C, keeping the temperature constant, and discharging uncrystallized mother liquor (recrystallizing until the purity of the raw material is reached, thereby obtaining the ultra-pure lithium bis (fluorosulfonyl) imide. Returning to the raw material tank, and discharging the uncrystallized mother liquor out of the system after the purity is lower than 75%; the temperature rise rate is 0.1 K / h to 30 K / h; the temperature of the crystallizer is raised to 125-130 DEG C, the temperature is kept constant, sweat is discharged, the temperature of the crystallizer is raised to 130 DEG C or above, crystals are completely melted and then collected as a product, and the mass percentage content of lithium bis (fluorosulfonyl) imide in the final product is larger than or equal to 99.99%. The method provided by the invention has the advantages of low operation temperature, high efficiency, greenness, safety, no additional solvent, no discharge of three wastes, no side reaction, and high purity and yield of the final product.

The utility model discloses a comprehensive recovery system for valuable elements in metallurgical dust and mud, which solves the problems that in the prior art, blast furnace cloth bag ash and sintering machine head ash are difficult to directly recycle, the comprehensive utilization value is low, secondary pollution is generated in the treatment process and the like. Separation, recovery and utilization of valuable elements in the blast furnace cloth bag ash and the sintering machine head ash are achieved, the process is flexible, the raw material adaptability is high, secondary solid waste is not generated, and waste water is not discharged.

The invention relates to a catalyst layer with a gradient pore structure and a preparation method and application thereof, and the preparation method comprises the following steps: by taking polyvinyl alcohol as a pore forming agent, forming a first catalyst layer on a proton exchange membrane by using a first catalyst slurry layer; taking polyvinyl alcohol and calcium carbonate particles as pore-forming agents, and forming a second catalyst layer on the first catalyst layer by using the second catalyst slurry layer; and by taking calcium carbonate particles as a pore forming agent, forming a third catalyst layer on the second catalyst layer by utilizing the third catalyst slurry layer. Compared with the prior art, by virtue of the gradient pore structure design, effective diffusion of oxygen from the gas diffusion layer into the catalyst layer is realized, the oxygen mass transfer resistance is reduced, meanwhile, the occurrence of a water logging phenomenon in the catalyst layer is slowed down, and the electrochemical performance of the fuel cell is remarkably improved.

The utility model relates to the technical field of roadbed structures, in particular to a retaining wall type roadbed structure without a bridgehead conical slope. According to the technical scheme, the retaining wall type roadbed structure without the bridgehead conical slope comprises limiting plates, retaining walls, a soil foundation and a mold, the retaining walls are arranged on the two sides of the soil foundation, the limiting plates are installed on the retaining walls, the mold is laid on the portion, between the retaining walls, of the soil foundation through the limiting plates, and the limiting plates are arranged on the limiting plates. And a lime soil layer, a lime cement stabilized macadam soil layer and a cement concrete layer are sequentially filled in the mold. According to the utility model, the strength, the light weight, the flexibility and the construction controllability of the structure are fully considered, so that the structure has excellent engineering performance.

The invention discloses a high-temperature alloy material which is composed of 0.022 wt% of C, 0.0056 wt% of Cr, 98.41 wt% of Ni, 14.29 wt% of Co, 0.175 wt% of Al, 1.72 wt% of Ti, 4.99 wt% of Nb, 0.0037 wt% of B, 0.3 wt% of Si, 0.012 wt% of Mn, 0.0011 wt% of P, 0.001 wt% of S, 0.025 wt% of Cu and the balance Fe, a Laves phase exists at the grain boundary of alloy grains, and the volume fraction of the Laves phase in the whole alloy is 1-2%. The alloy bar has excellent combination durability and is free of notch sensitivity. And compared with other methods, the process has the advantages of convenience, flexibility and low cost.

This invention provides a discrete mold two-stage progressive forming device and method. The split upper module includes multiple independent upper mold blocks. Each upper mold block has a central step structure and side step structures. Initially, the upper surfaces of the side step structures of the multiple upper mold blocks are at the same height, while the upper surfaces of the central step structures of the multiple upper mold blocks gradually decrease in height from the center to both sides, forming a stepped shape. The hydraulic auxiliary device includes a central pressure block, side pressure blocks, a central pressure head, and side pressure heads. The central pressure block corresponds to the central step structure; the side pressure blocks correspond to the side step structures; the central pressure head is connected to the central pressure block and can drive the central pressure block to move up and down; the side pressure head is connected to the side pressure block and can drive the side pressure block to move up and down. This invention solves the problem that high-strength steel parts with multi-arc variable cross-sections are difficult to produce using traditional forming processes.

The application discloses a preparation method of ultra-fine-grain nickel-based alloy and an article thereof, and comprises the following steps: step 1, a vacuum induction + electroslag remelting smelting method is used to prepare an electroslag ingot; step 2, high-temperature homogenization diffusion annealing is performed on the electroslag ingot obtained in step 1; step 3, a fast forging machine is used to forge the electroslag ingot after homogenization into an intermediate blank of a required specification under the condition of 1100 DEG C and multiple times of forging; step 4, intermediate heat treatment is performed on the intermediate blank in step 3; and step 5, low-temperature multiple-time forging is performed on the intermediate blank after the intermediate heat treatment in step 4.

The invention discloses a preparation method of a porous carbon negative electrode material for a sodium-ion battery, which comprises the following steps: preparing porous carbon with different specific surface areas and pore volumes by controlling carbonization conditions, and heating the porous carbon and a high-volatile carbon source in the same tubular furnace; carbon vapor generated by pyrolysis of a high-volatile carbon source is brought to the periphery of porous carbon through slow inert gas flow to perform vapor deposition on the porous carbon, so that the specific surface area of the porous carbon can be effectively reduced, and the obtained electrode material has a nano-pore structure suitable for sodium storage; the preparation method disclosed by the invention is simple and easy to operate, low in energy consumption cost and strong in controllability, and can effectively improve the reversible specific capacity, the initial coulombic efficiency and the rate capability of the porous carbon material when being applied to the sodium-ion battery.

The present invention is applicable to the field of tunnel technology, and provides a conversion structure between a double-layer and a single-layer shield tunnel and a construction method thereof. The conversion structure of the present invention includes a single-hole double-layer large-diameter shield tunnel, a large-diameter shield tunnel working shaft, an open-cut tunnel, a lower-layer small-diameter shield tunnel working, a semi-open-cut and semi-shield tunnel, an upper-layer small-diameter shield tunnel working shaft, and a double-hole single-layer small-diameter shield tunnel. The conversion problem between a single-hole double-layer large-diameter shield tunnel and a double-hole single-layer small-diameter shield tunnel is solved. The construction method of the conversion structure has flexible procedures, and each shield tunnel can enter and exit the tunnel without affecting each other. It has a low cost and strong feasibility, and is worthy of large-scale promotion.

This invention discloses an in-situ depolymerization modification composition of mineral-derived humic acid, its method, and its applications. The composition comprises a hydrogen bond acceptor and an acidic hydrogen bond donor, wherein the hydrogen bond acceptor is selected from one or more of choline compounds, betaine compounds, and quaternary ammonium salt compounds; and the acidic hydrogen bond donor is an aliphatic polycarboxylic acid or a hydroxycarboxylic acid. This method is simple, green, and efficient, yielding a product with low molecular weight, good water solubility, and strong resistance to hard water. It is suitable for various product forms such as solid fertilizers, liquid fertigation fertilizers, and soil conditioners, and has broad application prospects in modern agriculture and ecological restoration.

This invention specifically relates to a thermal insulation fabric and its preparation method. The thermal insulation fabric comprises the following raw materials in parts by weight: 70-90 parts of ethylene-vinyl acetate copolymer, 2-12 parts of polyethylene, 3-10 parts of polyolefin elastomer, and 3-10 parts of thermoplastic polyurethane, or further comprising 4-10 parts of ethylene propylene diene monomer (EPDM) rubber, 6-12 parts of foaming agent, and 0.5-5 parts of additives. For different formulation characteristics, supercritical physical foaming process and chemical foaming process are provided respectively. The supercritical process uses nitrogen and carbon dioxide as foaming agents, which is environmentally friendly and leaves no residue; the chemical foaming process ensures uniform dispersion of components through mixing and refining, and has strong process adaptability.

The present invention discloses a silver electrode material with an ordered straight-through pore structure, wherein a columnar structure array composed of silver nanoparticles is distributed on the surface of the silver electrode material, and the gaps between the columnar structures are straight or approximately straight straight-through pores in the direction perpendicular to the surface of the silver electrode material; wherein the lateral size of the columnar structure is 0.1 to 20 μm, the height of the columnar structure is 0.2 to 1.4 mm, and the gaps between the columnar structures are 0.01 to 10.0 μm. The straight-through pore structure is conducive to improving the diffusion rate of the electrolyte, improving the exchange rate of reactants and products on the electrode surface during the electrochemical reaction, and improving the reaction rate; at the same time, the conductivity of the columnar structure composed of nanosilver is higher than that of the ordinary silver powder electrode, which is conducive to the transmission of electrons in the electrode body. Therefore, the polarization effect and overpotential of the silver electrode material in the present invention are lower, and the electrochemical performance is better. In addition, the present invention also provides a preparation method of the silver electrode material, which is simple in process, easy to operate, convenient in parameter control, more flexible in process, and higher in preparation efficiency.

The invention discloses a glass reinforced plastic pipe fixed-length continuous composite winding production process, and relates to the technical field of glass reinforced plastic pipes, and the glass reinforced plastic pipe fixed-length continuous composite winding production process comprises the following steps: S1, winding on a mold of a pipeline winding system to obtain a lining layer; s2, the mold is made to rotate, and a feeding system moves in the axial direction of the mold while feeding materials to the lining layer on the mold so that a structural layer can be manufactured on the outer surface of the lining layer in a winding mode; the plurality of feeding areas comprise a continuous fiber area, a short fiber area and a quartz sand area; s3, when a feeding system moves from one end of the mold to the other end of the mold in the axial direction of the mold, production of a structural layer is completed, and a pipeline is obtained; according to the production process, equipment used by a traditional fixed-length winding process is adopted, the characteristics of simple process and flexibility are achieved, and the thickness uniformity and bending deformation resistance of the outer wall of the pipeline are guaranteed by arranging the uninterrupted continuous fiber area; by controlling the relation between the movement of the feeding area and the rotation of the die, the production speed and the production quality of the pipeline are guaranteed.

This invention discloses a process for the synergistic treatment of multiple wastes using an anaerobic system. Utilizing one or more anaerobic organic wastewater treatment systems, one or more types of externally generated waste are selectively introduced into the system. Organic pollutants in the water act as electron acceptors, and through microbial metabolism, the waste is rendered harmless and recycled, while also enhancing the system's processing capacity, generating energy, or recovering resources. The method includes five treatment modes: treating organic waste to increase biogas production, treating ferrous sulfide waste to recover ferrous sulfide, treating hexavalent chromium-containing waste liquid to recover chromium, treating nitrogen-containing waste to reduce it to nitrogen gas, and controlling sulfur-containing odors and performing in-situ desulfurization. Waste activated carbon is added in slurry form after grinding and fluidization, and the desulfurization mode uses a sulfate-free ferrous salt solution. This invention expands the anaerobic system into a synergistic treatment center for multiple industrial wastes, achieving waste-to-waste treatment, increased energy production, and resource recovery. The process is flexible and highly adaptable.

The application discloses a nitric acid preparation system and method, and relates to the technical field of chemical industry, and can reduce tail gas emission and nitrogen oxide content in the tail gas during nitric acid preparation.