1784results about How to "Reduce process" patented technology

The invention provides a semiconductor device and a manufacturing method thereof, and the method comprises the steps: providing a substrate, forming a gate structure and a side wall on the substrate, and enabling the gate structure to comprise a gate dielectric layer, a dummy gate, a first hard mask layer, a second hard mask layer and an amorphous carbon layer; forming a first patterned photoresist layer covering the NMOS region; forming grooves in the substrate at two sides of the gate structure in the PMOS region, and reserving an amorphous carbon layer with a partial thickness on the second hard mask layer; the first patterned photoresist layer is removed; and removing the amorphous carbon layer by adopting an ashing process. In the process of forming the groove in the PMOS region, the amorphous carbon layer protects the second hard mask layer below the amorphous carbon layer from being thinned, and after the amorphous carbon layer is removed, the thickness of the second hard mask layer in the two regions can be ensured to be consistent, so that the height of the dummy gate is ensured to be consistent, and the electrical performance of the device is improved.

The invention relates to the technical field of automatic cutting and receiving equipment, and discloses intelligent connection equipment for strip-shaped products and a connection method of the intelligent connection equipment. The intelligent connection equipment for the strip-shaped products is provided with a rack, and a discharging module, an automatic receiving module, a small buffering module and a control system for controlling the whole equipment to operate are sequentially arranged on the rack along a product advancing route. The automatic material receiving module comprises a welding moving platform, and a laser module, a tailing clamping jaw, a waste clamping module, a material stabilizing module, a driving wheel module and a reversing guide wheel are sequentially arranged on the welding moving platform along a product advancing route. The connection equipment is high in automation degree, intelligent identification and parameter switching can be carried out on different products, meanwhile, automatic connection quality detection and automatic reconnection after NG can be achieved, a production line is not stopped, and the efficiency is improved by 80%; after the products are automatically connected, the head and tail loss of the products is reduced; the joint removing procedure and cost of a rear-end automatic machine are reduced; meanwhile, human resources are saved.

The utility model discloses a film tearing mechanism which comprises a driving assembly, a first clamping piece, a second clamping piece, a first supporting piece and a second supporting piece. The first clamping piece and the second clamping piece are connected with the driving assembly and are oppositely arranged, and the first clamping piece and the second clamping piece are driven by the driving assembly to clamp or loosen the pasting film and tear off the pasting film under the driving of the driving assembly when the pasting film is clamped; the first supporting piece is arranged on the first clamping piece and extends towards the second clamping piece, and the first supporting piece is provided with a first supporting part; the second supporting piece is arranged on the second clamping piece and extends towards the first clamping piece, the second supporting piece is provided with a second supporting part, the first supporting part and the second supporting part are oppositely arranged, and the first supporting part and the second supporting part are far away from each other when the first clamping piece and the second clamping piece get close to each other so as to support the torn film; and when the first clamping piece and the second clamping piece are far away from each other, the first clamping piece and the second clamping piece get close to each other to break away from the torn film. The film tearing mechanism can improve the film tearing efficiency and the film tearing yield.

A laser cutting machine for metal plate cutting relates to the technical field of laser cutting machines and comprises a horizontally-arranged cutting table, a receding groove and a sliding U-shaped plate are sequentially arranged at the top of the cutting table in the length direction of the cutting table in a penetrating mode, the sliding U-shaped plate is horizontally arranged in a sliding mode, and a three-axis module is arranged at the position, above the receding groove, of the top of the cutting table. The laser cutting gun is installed on the three-axis module, a plurality of supporting rollers are horizontally arranged in the sliding U-shaped plate side by side, the two ends of each supporting roller are correspondingly and rotationally connected with the opposite inner walls of the sliding U-shaped plate, a horizontally-arranged partition plate is fixedly arranged on the inner wall of the avoiding groove, and a transferring assembly is arranged at the bottom of the partition plate. A discharging assembly and a fixing box are arranged on the left side and the right side of the partition plate correspondingly. The problem that cut finished products in kerfs of an existing laser cutting machine are difficult to take out is solved. And when cutting scraps are cleaned, shutdown disassembly operation is needed. And the positioning accuracy of the cutting area is low. And the post-treatment process of the cutting excess materials is tedious.

The invention relates to the technical field of production of automobile roofs, and particularly discloses a fiber-reinforced thermoplastic composite automobile interior ceiling and a preparation method thereof. A fiber-reinforced thermoplastic composite material automotive interior ceiling comprises a base material and a fabric, and the base material sequentially comprises a bottom layer non-woven fabric, a first adhesive film, a blend fiber felt and a second adhesive film from bottom to top; the blend fiber felt is made of reinforced fibers and thermoplastic fibers through a non-woven process. The preparation method comprises the following steps of: preparing the base material by a dry method, forming the framework and compounding the fabric by using a set of mold to obtain a ceiling prototype, and then punching by using a cold mold and integrally curling and covering the base material and the fabric of the skylight opening to obtain the ceiling. The automobile interior ceiling made of the fiber-reinforced thermoplastic composite material has excellent dimensional stability and is more low-carbon and environment-friendly, and raw material leftover materials generated in the production process and products produced after the life cycle is ended are easy to recycle.

The utility model discloses a kandelia candel seedling transplanting device, which belongs to the technical field of transplanters and comprises two groups of transplanting shovels and a support frame, the support frame comprises a connecting ring, two groups of fixing rods and a group of fixing pipes, the two groups of fixing rods and the group of fixing pipes are fixed on the connecting ring, and the fixing rods are positioned on two sides of the connecting ring. The transplanting shovels moving downwards are folded towards the middle through the inclined face of the fixing frame, kandelia candel seedlings in an original planting field can be conveniently shoveled and moved, then the squeezing plate is limited through the locking assembly, the squeezing plate is used for limiting the transplanting shovels, it is guaranteed that the seedlings and soil around the roots are protected through the two transplanting shovels, and the transplanting efficiency is improved. After a planting field is planted, only the supporting frame needs to be inserted into the soil, the supporting frame drives the transplanting shovel to be inserted into the soil again, the soil is extruded outwards to form a planting pit, the planting pit does not need to be prepared in advance, procedures are reduced, and the transplanting efficiency is improved.

The invention relates to a hot-rolled wire rod for a 2060MPa bridge cable and a manufacturing method of the hot-rolled wire rod, after C-Si-Mn-Cr-V-Nb component is rolled and spun into a wire rod, the wire rod is subjected to online molten salt strong isothermal treatment, so that the wire rod is cooled at a cooling speed of greater than or equal to 34 DEG C / s, and enters a sorbite phase region from an austenite state to form a structure mainly comprising fine lamellar spacing sorbite, and isothermal treatment is carried out; and finally, through roller way slow cooling, the hot-rolled wire rod with a microscopic structure mainly comprising tempered sorbite and the balance being a mixed structure composed of ferrite and microspheroidized carbide is prepared, a deteriorated structure influencing the performance of a wire rod finished product in the production process can be effectively controlled, stable production is achieved, and the strength and plasticity matching of the wire rod is improved. The tensile strength is 1440-1490 MPa, the percentage reduction of area is 42%-46%, and the method is suitable for efficient and stable production and manufacturing of the 2060 MPa bridge cable.

The invention relates to the technical field of photovoltaic packaging materials, and discloses a black high-reflection infrared integrated packaging material and a preparation method thereof, and the black high-reflection infrared integrated packaging material comprises a bonding packaging layer, a light management layer, a mechanical transition layer and an insulating supporting layer which are arranged from top to bottom; all the layers are subjected to integrated melting and co-extrusion to obtain the packaging material; the first melting point of the bonding packaging layer is 70-100 DEG C, the second melting point of the bonding packaging layer is 110-130 DEG C, and the content of the cross-linked gel after irradiation is 5-30%; the melting point of the light management layer is 70-130 DEG C, the light management layer comprises a perylene black surface layer and a white light reflecting layer which are sequentially arranged, the visible light absorptivity of the perylene black surface layer is larger than or equal to 90%, and the infrared light transmittance of the perylene black surface layer is larger than or equal to 50%; the melting point of the mechanical transition layer is 90-130 DEG C; and the melting point of the insulating support layer is 120-180 DEG C. According to the invention, the high transmittance of infrared light is maintained while the deep black appearance is realized, the secondary absorption of the infrared light can be realized, and the overall efficiency of the assembly is improved.

The invention relates to the technical field of automobiles and industrial electronics, in particular to a power device embedded circuit board integrated with a ceramic plate and a preparation method of the power device embedded circuit board, and the power device embedded circuit board comprises the ceramic plate, a power device, a conductor layer, an insulating layer, a metal conduction blind hole, a bottom copper plating layer, an assembly welding layer and a blind groove. Compared with a traditional power module, the switching speed is higher, the switching loss is smaller, and the design is more flexible; compared with a power device embedded circuit board in the market, the circuit board has the advantages of lower thermal resistance, lower temperature rise and higher current output capability. The advantages of a traditional power module and an embedded circuit board are integrated, switching loss is small, thermal resistance is small, and the current output capacity can be greatly improved.

The invention discloses environment-friendly plastic product in-mold coating processing equipment which comprises an in-mold coating device, a color paste conveying device, a mixing head and a forming mold, the in-mold coating device comprises an A material tank used for supplying A materials and a B material tank used for supplying B materials, and the color paste conveying device comprises a C material tank used for supplying C materials; the material A, the material B and the material C are mixed in the mixing head to form a reaction forming coating, and the discharging end of the mixing head is connected with the coating feeding end of the forming mold. The environment-friendly plastic product in-mold coating processing equipment is high in equipment integration degree, capable of reducing processing procedures, stable, flexible and convenient to operate, capable of obtaining high-quality product surfaces with various color effects and capable of being flexibly and freely matched with different types of injection molding machines and turnover mold frame equipment according to the production requirements of customers, and the production efficiency is improved. And the production requirements of customers in different application scenes can be met.

The invention discloses a laryngoscope blade integral forming mold, and relates to the technical field of laryngoscope blade production, the laryngoscope blade integral forming mold comprises a front mold core and a rear mold core which are matched with each other, a mold cavity, a movable cavity and a power cavity are formed when the front mold core and the rear mold core are closed, the mold cavity and the movable cavity are communicated through a moving groove, and an arc-shaped loose core matched with the mold cavity is slidably connected in the movable cavity; the arc-shaped loose core enters the mold cavity to achieve integral forming of the laryngoscope blade, the arc-shaped loose core is contained in the movable cavity to facilitate demolding of the laryngoscope blade, the integral forming mold for the laryngoscope blade achieves forming of a complete laryngoscope blade product through a vector sliding method of the arc-shaped loose core, the ultrasonic welding step is reduced, and the production efficiency is improved. And due to the integrated design, the appearance hardness, the waterproofness and the stability of the laryngoscope blade are improved.

The invention provides a method for realizing a metasurface hologram, and the method comprises the steps: presetting three kinds of nanometer unit structures which are different in geometric dimension and geometric shape, and each kind of nanometer unit structure comprises nanometer bricks; according to a preset target near field pattern, performing array periodic arrangement on the three nano unit structures on a preset substrate; encoding the phase information of the processed target far-field hologram into the nano brick rotation angle of each nano unit structure after arrangement to complete the construction of the metasurface; polarized light with different wavelengths is arranged to be incident to the metasurface, and a color hologram is achieved in a far-field area of the metasurface. According to the method, near-field nano-imprinting and far-field color holography are simultaneously realized on the same metasurface in a simple coding mode, and complete decoupling is realized, so that two channels have no crosstalk.

The invention relates to the technical field of bridge construction, in particular to a main tower cross beam cast-in-place support segmented hoisting construction method which comprises the following steps that a first supporting support and a second supporting support are hoisted correspondingly and connected with embedded parts on two vertical segments correspondingly; the middle support is hoisted, so that the middle support is connected with the first supporting support and the second supporting support; and S6, the first stable support and the second stable support are hoisted so that the first stable support can be connected with the first supporting support, the second stable support can be connected with the second supporting support, and the third stable support is hoisted so that the third stable support can be connected with the first stable support and the second stable support. The first supporting bracket, the second supporting bracket, the middle bracket, the first stabilizing bracket, the second stabilizing bracket and the third stabilizing bracket are mutually connected to form a whole so as to better bear force, and meanwhile, multiple positions in the first supporting bracket and the second supporting bracket are hinged, so that bending moment can be better released so as to improve the bearing capacity.

The invention discloses a manufacturing method of an ultra-large seamless steel pipe with the diameter of 2000 mm, and belongs to the technical field of seamless steel pipe manufacturing in the metallurgical industry. The method comprises the following steps: heating a solid round tube blank, carrying out skew rolling by adopting a micro-expanding process to obtain a pierced billet, manufacturing the pierced billet into a hollow billet with an expanded diameter by utilizing a skew rolling expanding process, further expanding the diameter by using a flattening skew rolling process and simultaneously improving the dimensional precision and the surface quality of the hollow billet, and obtaining a semi-finished steel tube with the diameter of 2000mm by adopting a controlled rolling sizing process. And the semi-finished steel pipe is subjected to heat treatment, flaw detection and finishing procedures to directly obtain the ultra-large seamless steel pipe finished product of 2000 mm According to the method, materials are formed through one-time heating, only pipe blank heating is needed, heat treatment and reheating are not needed, energy is saved, and performance is improved; the on-line structure regulation and control method taking controlled cooling as the core thoroughly turns the passive situation that seamless steel pipes excessively depend on alloying and off-line heat treatment in the past, breaks through the bottleneck of the traditional process, and develops a new process and a new method for high-quality and high-efficiency manufacturing of the steel pipes.

The invention relates to the technical field of connector assembling, and discloses automatic assembling equipment for an automobile power distribution assembly high-voltage connector, which comprises a first input mechanism, a second input mechanism, an HSG input mechanism and an assembling output mechanism, the assembling output mechanism is located between the first input mechanism and the second input mechanism, the first input mechanism inputs the shielding shell to the end of the assembling output mechanism, the second input mechanism inputs the pin, and the HSG input mechanism inputs the HSG body. During assembly, the pin pins and the shielding shells are assembled in pairs, the two shielding shells are pressed into a whole, the procedure of independently processing each shielding shell is reduced, the assembly process is simplified, the combined shielding shells are reset through the sleeving work of assembly, the two shielding shells and the group of pin pins can be directly assembled with the HSG, deformation during assembly is avoided, and the assembly efficiency is improved. And the overall production efficiency is improved.

The invention discloses a double-color injection molding process for an automobile lampshade, and aims to solve the problems of complex process, unstable quality, environmental pollution and the like in the process of realizing a multicolor effect through secondary processing of an existing single-color lampshade. According to the process, a cavity-divided mold design is adopted, a movable mold core is used for switching mold cavities, a primary color material and a cover color material are sequentially injected, and one-time forming of the double-color lampshade is achieved. Transparent polycarbonate is selected as a primary color material, opaque PC or PMMA is selected as a covering color material, and high optical performance and weather resistance are ensured. In the injection molding process, by optimizing process parameters of temperature, pressure, injection molding speed and cooling time, the defects of delamination, flow marks, bubbles and the like among materials are effectively avoided. And a mold runner adopts a balanced hot runner design, so that the material distribution uniformity is improved. The process achieves efficient production of the double-color lampshade, has the remarkable advantages of being excellent in product quality, low in production cost and environmentally friendly, and can be widely applied to the field of manufacturing of automobile lampshades.

The utility model belongs to the technical field of material mixing, and particularly discloses a mixing device convenient for material transfer, which comprises a rack, a tank body, a hopper, a jacking assembly, a spin lock assembly and a power assembly, the tank body is arranged on the rack, the hopper is arranged under the tank body, and the hopper can be in butt joint with the open end of the tank body to seal the tank body. The jacking assembly is arranged under the tank body. Compared with a two-dimensional mixing machine in the prior art, the two-dimensional mixing machine has the advantages that the logistics mode of a traditional two-dimensional mixing machine is changed, the hopper used for transferring materials is directly used as the tank cover to be sealed with the tank body, so that the hopper is used as a transferring container and a sealing cover; therefore, the transfer process that materials in the tank body need to be repeatedly poured between the tank body and the hopper of a traditional two-dimensional mixing machine is avoided, the processes are reduced, the layout optimization of a production line is facilitated, the mixing efficiency is improved, and the situation that the materials overflow out of the hopper in the pouring process and pollute the environment is avoided. In addition, the device adopts a sealed mixing mode, so that materials are not leaked in the mixing process.

The invention relates to the technical field of ship engine manufacturing and machining, in particular to a machining method of a special-shaped locking gasket with a hole and a stamping die tool of the special-shaped locking gasket with the hole. Comprising a base, a blanking and punching die, discharging rubber, a discharging plate, an upper support, a die handle, a pushing rod, a base plate, a male die base, a blanking female die, a discharging device, a pushing block and a punching male die, a machine tool is started, an upper die of the punching die tool is lifted and separated from a lower die, then a long-strip-shaped plate blank is placed on the discharging plate, the upper die of the punching die tool is pressed downwards to a fixed distance, and the punching male die is pressed downwards. The special-shaped stop gasket with the hole is punched by pushing the push rod to eject the punched and formed special-shaped stop gasket with the hole down, one-time punching machining of the special-shaped stop gasket with the hole is completed, and continuous punching machining can be carried out by repeating the operation, so that the machining efficiency of the special-shaped stop gasket with the hole is improved. By the adoption of the structure, one-time stamping forming of the special-shaped locking gasket with the hole is achieved, the process route is simple, operation is easy and convenient, and the requirement for mass production can be met.

The invention belongs to the technical field of water resource recycling, and discloses a water resource recycling system and a control method, the water resource recycling system comprises a domestic sewage pretreatment system, a rainwater pretreatment system, an industrial wastewater pretreatment system, a main treatment system and a post-treatment system; the domestic sewage pretreatment system, the rainwater pretreatment system and the industrial wastewater pretreatment system are respectively connected in parallel to the main treatment system through a multi-channel pipeline, and the other end of the main treatment system is connected to the post-treatment system through a pipeline. When the system is used, domestic sewage, rainwater or industrial wastewater can be independently treated, the domestic sewage, the rainwater or the industrial wastewater can also be treated at the same time, and the system has multiple treatment modes and can meet different treatment conditions for treatment. The treatment process and equipment are reduced on the whole, the treatment time is saved, the occupied area of the equipment is reduced, and the treatment and recovery effects on different types of water resources are improved.

The utility model discloses vertical sewage treatment equipment based on an MABR (Membrane Aerated Baffled Reactor) membrane. The vertical sewage treatment equipment comprises a water distribution system, an MABR reaction zone, an MABR membrane component, a gas supply and flushing system, a clear water zone, a backwashing automatic control system, a water production system and a liquid level control system. The sewage treatment system is short in process and simple to operate, compared with other sewage treatment systems, complicated processes and control of an anaerobic zone, an anoxic zone, an aerobic zone, a reflux system and the like are reduced, standard discharge of sewage is realized by only adopting one treatment process of the MABR, the aeration efficiency is 4-5 times of that of a conventional aerator by adopting an MABR bubble-free aeration technology, and the sewage treatment system has the advantages that the sewage treatment system is simple in structure and low in cost. The device is simple in structure and free of a nitrification liquid reflux pump, a sludge reflux pump and a stirrer, equipment investment and energy consumption are greatly reduced, the vertical tank body structural design is adopted, and compared with other integrated equipment, the occupied area is greatly saved.

The utility model provides a protective film, a cover plate assembly and a battery. The protective film comprises a first film layer, an adhesive layer and a second film layer, according to the technical scheme, the second film layer covers the first area of the adhesive layer, and due to the fact that the second film layer is located between the adhesive layer and the anti-explosion valve, when the protective film is under the conditions of thermal expansion and cold contraction and negative pressure and is sucked back, the situation that the protective film and the anti-explosion valve are bonded due to direct contact of the adhesive layer and the anti-explosion valve can be reduced; similarly, because the glue layer is whole-surface and not annular, compared with an annular gluing mode adopted for the anti-explosion valve film in the related technology, the technical scheme of the embodiment of the utility model omits the process step of removing part of glue on the anti-explosion valve film, namely, part of the glue layer located in the first area does not need to be removed, so that the anti-explosion valve film can be conveniently and rapidly glued. Therefore, the procedure before the protective film is adhered to the top cover of the battery can be reduced, and the production cost of the protective film is reduced.

The invention provides a tower crane foundation prefabricated stand column pile and a construction method thereof. The tower crane foundation prefabricated stand column pile comprises a steel pipe concrete column and a prefabricated pipe pile. The bottom of the concrete-filled steel tubular column is connected with the prefabricated tubular pile; concrete is poured into the concrete-filled steel tubular column and the prefabricated tubular pile; the prefabricated pipe pile is formed by sequentially connecting a plurality of pipe pile sections; connecting assemblies are arranged at the connecting position of every two adjacent pipe pile sections and the connecting position of the concrete-filled steel tubular column and the prefabricated pipe pile. The connecting assembly comprises a reinforcing piece, and the two ends of the reinforcing piece extend into the connected components correspondingly. The reinforcer is anchored in the concrete. The steel pipe and the prefabricated pipe pile are prefabricated parts, so that the processing quality is better, and the process is simple and few in procedures during field operation; connecting assemblies are arranged between the adjacent pipe pile sections and between the prefabricated pipe pile and the steel pipe concrete column, and the connecting quality is more reliable. The concrete filled steel tubular column and the prefabricated tubular pile can effectively save materials and reduce cost.

The invention provides an integrated gallium nitride and gallium oxide power chip, a preparation method thereof and electronic equipment, and relates to the technical field of semiconductors. According to the epitaxial structure in the integrated gallium nitride and gallium oxide power chip, a GaN layer and a Ga2O3 layer are integrated and epitaxially arranged on the same substrate, heteroepitaxial lattice mismatch is reduced by adopting a method of epitaxially extending the Ga2O3 layer on the GaN layer, and the crystal quality is improved. According to the epitaxial structure, a first functional component is formed on the first area, a second functional component is formed on the second area, the surface of the first area is the surface of the side, deviating from the substrate, of the barrier layer, the surface of the second area is the surface of the side, deviating from the substrate, of the Ga2O3 layer, and the aim that a Ga2O3 power chip and a GaN power chip are integrally arranged on the same substrate is achieved. The processes of lead interconnection, bonding and the like are reduced, the size of a wide bandgap semiconductor power system can be further reduced, and the problems of parasitic loss, response delay, noise and the like caused when discrete chips are integrated are avoided.

The present invention relates to a universal winch test device, comprising three components: an adjustable winch test device, an adjustable reduction box test device, and a universal brake pull plate. The advantages of the present invention are that the adjustable winch test device and the adjustable reduction box test device adopt a modular design, and the winch installation base surface can be freely adjusted in the horizontal, vertical and height directions by adjusting some modules. The universal brake pull plate adopts a modular design, and the pull plate length and pin hole diameter can be adjusted by replacing some modules. The present invention achieves the goal of completing all winch tests with one set of test devices, and has the advantages of low comprehensive cost, high reliability, high precision, fewer processes, low storage cost, good stability, etc.

The invention belongs to the technical field of magnetic materials, and particularly relates to a method for preparing a high-performance neodymium-iron-boron magnet in a one-stop mode. The method for preparing the high-performance neodymium-iron-boron magnet in the one-stop mode comprises the following steps that rapid-quenching neodymium-iron-boron magnetic powder is subjected to cold pressing to obtain a cold-pressed blank, the surface of the cold-pressed blank is coated with a release agent, then preheating is conducted, and then the cold-pressed blank is put into a heat flow deformation mold to be subjected to pre-pressing, heat flow deformation and forming; the heat flow change mold sequentially comprises a pre-pressing section, a heat flow change section and a forming section from top to bottom. According to the method, pre-pressing, heat flow change and forming are carried out in a one-stop mode in a heat flow change mold, densification-grain flow change, magnetic domain preferred orientation-orientation uniformization and finished product forming of the magnet are completed, the traditional hot pressing process is avoided, the production procedure is greatly simplified, the production cost is reduced, and the production efficiency is improved.

The invention discloses a fuming furnace smelting process control method and system, a terminal and a readable storage medium. The method comprises the following steps: constructing a normal association relationship among initial multi-source data in a stable operation state of a fuming furnace; collecting current multi-source data of the fuming furnace in a current operation state; identifying association deviation according to the normal association relationship and the current multi-source data; identifying an abnormal state according to the correlation deviation; and according to the abnormal state, the smelting area is finely controlled. According to the control method and system for the smelting process of the fuming furnace, the normal incidence relation among the multi-source data is constructed, the abnormal state can be recognized more accurately, then the smelting area is finely controlled, and therefore the control accuracy of the smelting process can be improved, unnecessary energy consumption and process fluctuation can be reduced, and the smelting process can be controlled more accurately. And meanwhile, local abnormity can be rapidly and effectively eliminated, further deterioration of the local abnormity is prevented, and automatic control over the smelting process of the fuming furnace can be achieved.

The invention discloses a safe operation tubular column for a carbon dioxide injection well and an operation method, a tubing hanger is hung at the upper end of a casing head, a load test short section is connected below the tubing hanger, and the load test short section is sequentially provided with a sliding sleeve valve, an upper centralizer, a releasing packer, a lower centralizer, a gas injection valve, a tail short section and a screwed plug towards the lower tubular column. After the pipe column enters a well, the annulus protection fluid is positively injected for fluid replacement; a constant-pressure valve ball is put in, and the sealing performance is checked through step-by-step positive pressure; a tubing hanger is seated after pressure relief; the releasing packer is set through positive pressure, then pressure is continuously increased to break the valve seat thin-wall section of the constant-pressure valve seat, and positive injection communication of the tubular column is achieved; and then water is squeezed forwards, after the sealing performance of the packer is verified, a wellhead is installed and connected with a ground process, carbon dioxide is injected forwards, and soaking is conducted after the carbon dioxide reaches the set gas injection amount. The tubular column does not overflow in the process of descending into a well, after positive replacement, a ball is thrown to press and set a packer, a shaft is protected, dirt deposition is prevented, the risk of breakage and falling of the tubular column is completely eradicated, and the operation process is safe and controllable.

The invention discloses kluyveromyces marxianus, a fermentation method of rose-flavored coffee beans and coffee beans, the kluyveromyces marxianus is selected as a fermentation strain, microorganisms are obtained from sour meat and preserved, and green coffee beans and rosa damascena are fermented together, so that the coffee beans are endowed with unique rose flavor. Performing high-temperature sterilization on the raw coffee beans and performing ultraviolet sterilization treatment on the rose petals; inoculating by using a fermentation strain with a specific concentration; and then fermenting for multiple times in a constant-temperature and constant-humidity environment, so that the rose fragrance and the coffee flavor are fully fused. Through selective fermentation and accurate control of inoculation concentration, flavor compounds generated in the fermentation process are ensured to be consistent, and stable flavor expression is realized. The finally obtained coffee with the rose flavor has unique flavor, moderate acidity, good mellowness, balanced sweetness, appropriate baking degree and uniform particle size, the moisture content and the trace element content of the coffee are accurately controlled, and the quality identification score reaches 81.3.

The utility model provides a sorting device for dry-type litchis, which relates to the technical field of agricultural equipment and comprises a conveying line, an overturning assembly and an empty box recycling assembly are arranged above the conveying line, one end of the empty box recycling assembly is connected with a recycling conveying assembly, and one end of the conveying line is connected with a large and small screening area. The other end of the large-size screening area is connected with the large-particle color distinguishing area, and the small-particle conveying area is arranged below the large-size screening area and connected with the small-particle color distinguishing area. The litchis screening device has the advantages that the conveying line is arranged in front of the size screening area of litchis, the overturning assembly is arranged above the conveying line, the litchis are conveyed to the overturning assembly through the conveying line, the turnover box filled with the litchis is overturned in two steps through the overturning assembly, the litchis can slide out of the turnover box to the conveying line, and the litchis can be screened conveniently. The process of manually pouring the litchis is omitted, the labor intensity of workers is reduced, the working efficiency of the sorting device is improved, and it is guaranteed that the litchis are not damaged by impact and extrusion in the discharging process.

The invention provides sodium ion battery diaphragm coating slurry, a coated diaphragm and a sodium ion battery, and belongs to the technical field of energy materials. The raw materials comprise the following components: 5-60 parts of a sodium supplementing material, 50-90 parts of an inorganic solid electrolyte material, 0.1-3 parts of a dispersant, 1-10 parts of a binder, 0.1-5 parts of a wetting agent, 0-2 parts of an auxiliary agent and 100-300 parts of a solvent. The sodium-ion battery sodium-supplementing diaphragm comprises the sodium-ion battery sodium-supplementing diaphragm coating slurry and a base membrane, and at least one side of the base membrane is coated with the sodium-ion battery sodium-supplementing diaphragm coating slurry. According to the sodium-ion battery sodium-supplementing diaphragm prepared from the sodium-ion battery sodium-supplementing diaphragm coating slurry provided by the invention, the sodium-supplementing material in the diaphragm coating compensates sodium ions consumed by SEI film formation and side reaction by providing active Na < + >, so that the reversible capacity of the battery is improved.