42 results about "Vacuum evaporation" patented technology

This invention proposes an integrated vacuum pumping system for the exterior of a vacuum evaporation machine, comprising a coarse pumping pipe and a fine pumping pipe. A first three-way pipe and the fine pumping pipe are connected by a telescopic motor that drives the valve cover to rise and fall, enabling rapid switching between the coarse and fine pumping lines and avoiding vacuum fluctuations. Under the precise pressure control of the telescopic motor, the valve cover maintains uniform contact pressure on the sealing surface. The transition pipe directly connects the coarse and fine pumping pipes, eliminating flow channel redundancy in traditional multi-valve systems and reducing gas flow resistance. The telescopic motor is linked with a vacuum sensor to automatically switch the pumping mode based on the cavity pressure threshold, avoiding errors caused by manual intervention. The integrated three-way pipe reduces external connecting components, shrinks the equipment size, and lowers manufacturing costs and maintenance complexity.

The present application relates to the technical field of organic optoelectronic materials and devices, in particular to a preparation method of white organic light-emitting diodes based on a kind of blue, yellow and other color cMa copper (I) TADF complex with nitrogen heterocyclic carbene-copper-arylamines structure, including three steps: first, synthesis of cMa type copper (I) TADF complex containing blue light emitter and yellow light emitter as representative, obtained by ligand selection, intermediate preparation and purification;Second, construct layered WOLEDs device, from bottom to top in turn for substrate, ITO anode, hole injection layer, hole transport layer, buffer layer, yellow light emitting layer, blue light emitting layer, electron transport layer, electron injection layer and Al cathode;Third, through substrate pretreatment, mbar high vacuum evaporation and nitrogen glove box packaging complete device preparation.The WOLEDs device W1, W2 prepared by the present application has excellent photoelectric performance, the CRI is up to 83, the maximum external quantum efficiency is greater than or equal to 13.3%, has good stability and low cost, and is suitable for lighting and display fields.

This invention proposes a double-layer sealing door device for an ultra-high vacuum evaporation coating machine, including a processing chamber. A sealing door is provided on the outer side of the processing chamber, and the two are connected by a hinge assembly. A sealing area is provided on the outer end face of the processing chamber, and at least one evacuation hole is opened in this area. An inner sealing ring and an outer sealing ring are arranged sequentially on the inner side of the sealing door. When closed, the inner and outer sealing rings simultaneously press against the sealing area to form an annular vacuum chamber. The evacuation hole is located inside the vacuum chamber and is used to independently evacuate the chamber to form a secondary seal. Through the coordinated design of the inner and outer double sealing rings and the vacuum chamber, a transition vacuum zone is constructed between the sealing door and the processing chamber, making the pressure difference between the inside and outside of the door approach zero, significantly reducing the stress deformation of the sealing rings and extending their service life. At the same time, the double vacuum barrier greatly reduces the leakage rate of the main chamber and improves the sealing reliability.

The application belongs to the technical field of photoelectric detectors, and discloses a high-performance two-dimensional perovskite photoelectric detector and a preparation method thereof. First, a SiO2 glass substrate is cleaned, and a precursor solution is dropped on the surface of the glass substrate. Chloroform antisolvent solution doped with ZnO quantum dots is dropped on the precursor solution. Then, ZnO quantum dots / (PEA)2PbI4 nanosheet thin film is formed by spin coating, and the thin film is annealed. The above steps are repeated multiple times to obtain a uniform thin film. The glass substrate with the uniform thin film is plated with gold by a vacuum evaporation method to obtain an electrode. The application improves the carrier migration rate by doping the concentration of ZnO quantum dots, improves the photocurrent size, obtains higher responsivity and detection rate, and shorter response time. The manufacturing process is simple and has strong repeatability. The application has high photocurrent size, high responsivity and high detection sensitivity. The application selects a suitable concentration of ZnO quantum dots. The application can be prepared in an air environment and has strong stability.

The invention relates to methods and apparatus for controlling water balance during lithium chloride brine electrolysis. A method is provided comprising supplying the anolyte product stream from electrolysis to a flash evaporator without mixing it with any other liquid stream between exiting the electrolyser and entering the flash evaporator, concentrating it by vacuum evaporation and recirculating the concentrated anolyte product to the electrolyser. A method is also provided comprising the use of forward osmosis prior to electrolysis in order to adjust the concentration of the initial feed brine such that it can be purified by ion exchange and then concentrated for electrolysis, in a manner that means that the entire feed brine can be prepared for electrolysis using forward osmosis, which requires very little energy input. Apparatus for performing the above processes is also provided.

The utility model relates to the technical field of industrial production of pleuromutilin, and specifically discloses a pleuromutilin extraction system to solve the problems of low yield, insufficient purity and low efficiency of clarity treatment in the existing pleuromutilin extraction mode, which comprises a three-stage countercurrent leaching system, a double-effect evaporation system, a methanol evaporation kettle, a layered tank and a vacuum evaporation crystallization system connected in sequence from the head to the tail. The three-stage countercurrent leaching system comprises three countercurrent leaching tanks and dryers connected in series from the head to the tail, and the discharge end of the first countercurrent leaching tank and the discharge end of the second countercurrent leaching tank are both provided with a slag excavator, and the discharge end of the third countercurrent leaching tank is provided with a slag extruder. The extraction system is used for extracting and processing pleuromutilin, and the pleuromutilin has high yield, high degree of automation and high purity.

The application discloses a vacuum evaporation equipment, which is characterized by the following technical scheme: a gasification tank is fixedly installed on the top of an evaporation box, a purification box is arranged between the gasification tank and the evaporation box, a second rotating rod is rotatably installed in the gasification tank, second stirring rods are arranged on the outer wall of the second rotating rod, the end of the second stirring rods is provided with a connecting rod with a stirring needle and a stirring column, a filter plate with a plurality of filter holes is elastically installed in the gasification tank and above the second rotating rod, a third rotating rod is rotatably installed on one side in the purification box, a plurality of third stirring rods are arranged on the outer wall of the third rotating rod, and the outer wall of the third stirring rods is oppositely provided with a stirring block and a stirring plate with a wavy structure. The vacuum evaporation equipment can uniformly mix evaporation materials for multiple times, and can filter the evaporation materials for multiple times, so that the mixing effect of the evaporation materials and the consistency of evaporation particles are effectively improved, and the evaporation quality of the device is improved.

This utility model relates to the field of ceramic transfer roller technology, and discloses a ceramic transfer roller device for vacuum evaporation with a circulating coolant cooling system. It includes a base, a mounting frame fixedly connected to the center of the base, a safety film screen roller rotatably connected to the center of the mounting frame, a ceramic transfer roller body disposed on the upper front side of the mounting frame, mounting blocks fixedly connected to the left and right sides of the upper part of the base, a heating oil roller rotatably connected to the opposite side of the mounting blocks, an L-shaped frame fixedly connected to the left rear side of the mounting frame, an installation roller rotatably connected inside the L-shaped frame, and a coating main drum fixedly connected to the outside of the installation roller. In this utility model, through the cooperation of structures such as the handle, connecting block, return spring, telescopic column, limit block, mounting groove, cylinder, support block, installation roller, and coating main drum, the ceramic transfer roller device facilitates the replacement of the substrate film, reducing downtime.

The embodiment of the present application discloses a conductive strip, a photovoltaic module and a preparation method of the conductive strip. The conductive strip comprises a substrate, the substrate has a first side and a second side arranged oppositely, the first side has a light reflection structure, a light reflection layer is arranged on the surface of the light reflection structure, and a welding layer is arranged on the second side. The light reflection layer is formed by electroplating or a non-liquid deposition process. The light reflection layer is formed by electroplating or a non-liquid deposition process (such as vacuum evaporation and magnetron sputtering), the plating layer material is deposited in the form of atoms, ions or gas, and the surface of the light reflection structure is uniformly covered. Compared with a traditional hot-dip tinning process, the accumulation and particles of liquid metal in the groove are reduced, and the original morphology of the light reflection structure is maintained to reduce the adverse effect on the reflectivity.

The utility model discloses an evaporating boat and vacuum evaporation device, include: boat body, its top surface is recessed to form evaporating groove, the groove bottom of evaporating groove has the adjacent distribution of coating area and non-coating area, and the drop point of material is located coating area, and is close to the junction of coating area and non-coating area, wet coating, coating in coating area, wherein, coating area has with first side of junction opposite, non-coating area has with second side of junction opposite, and second side compares first side and is closer to drop point distribution. The utility model adopts above -mentioned structure, can make the liquid material that drops to evaporating groove spread out fast, evenly, and can effectively avoid material splashing.

This utility model discloses a vacuum evaporation device for casein concentration, relating to the technical field of casein processing equipment. It aims to solve the technical problem that current devices, with their inlet and outlet located on the top and bottom sides, easily lead to unstable material residence time in the evaporation chamber, exacerbating scaling inside the equipment and affecting casein quality. The device includes a vacuum evaporation unit body, inside which a heating component is fixedly installed. A connecting pipe for connecting to an external heating mechanism is fixedly installed on the top of the heating component. The heating component includes a heating plate. This utility model, by setting a spiral guide plate and a downwardly inclined guide surface, allows the casein solution entering from the feed port to flow along a spiral path on the guide surface of the heating plate, significantly extending the material's residence time in the heating zone. This has the advantages of maintaining stable material heating time, uniform flow rate, and improved evaporation quality.

The application provides an ultrahigh vacuum evaporation machine, which comprises a first magnetic push rod conveying device, a second magnetic push rod conveying device and a preparation chamber, a cleaning chamber, an evaporation chamber and an oxidation chamber which are sequentially connected and arranged, a first magnetic push rod conveying device is arranged at an input end of the preparation chamber, a second magnetic push rod conveying device is arranged at an output end of the oxidation chamber, the magnetic push rod and the material grabbing device are cooperated to realize full-automatic transmission of wafers, and the wafer orientation and positioning are completed in combination with a turnover mechanism, so that the production efficiency and process consistency are greatly improved; gate valve devices are arranged between the preparation chamber, the cleaning chamber, the evaporation chamber and the oxidation chamber, independent and accurate regulation and control of vacuum degrees of the chambers are realized, cross contamination of process gases is effectively avoided, and the purity of a film layer is ensured.

The present application relates to a kind of vacuum evaporation instead of the method of electric evaporation nickel removal, which refers to the liquid after copper removal is concentrated using vacuum evaporation kettle under the condition that vacuum degree is-50~‑65KPa, temperature is 65~80℃, vacuum evaporation flow is 1.5~2.5m 3 / h, namely the vacuum evaporation liquid with specific gravity≥1.43 is obtained;The vacuum evaporation liquid is pre-cooled by plate condenser first, then is sequentially operated by refrigeration crystallization machine and belt filter, respectively, to obtain crude nickel sulfate and crystallization mother liquor, and the crystallization mother liquor is returned to electrolysis system.The present application has low power consumption, large solution processing capacity, good solution concentration effect, simple operation, safe and environmentally friendly operation environment, and the quality of crude nickel sulfate product prepared is stable.

The application belongs to the technical field of ceramics and relates to a low-temperature aging-resistant zirconia ceramic as well as a preparation method and application thereof. Before sintering treatment of a zirconia ceramic body, a vacuum evaporation plating technology is used to form an evaporation layer on the surface of the zirconia ceramic body, and then sintering treatment is performed, so that a zirconia ceramic with a yttrium oxide protective layer is finally obtained; the evaporation layer is a metal yttrium layer or a yttrium oxide layer, and the thickness of the evaporation layer is greater than or equal to 1 nm. Through the evaporation plating technology, a nanoscale yttrium oxide shell layer with a controllable thickness and a dense structure is formed on the outer layer of the zirconia ceramic, and in a hydrothermal aging environment, the dense shell layer can effectively block the erosion of water on yttrium elements in the zirconia matrix, thereby significantly inhibiting the occurrence of low-temperature aging phase change and greatly improving the long-term stability and service life of the zirconia ceramic material.

The application relates to the quartz pendulum plate processing field, and aims to solve the problem that the existing quartz pendulum plate cleaning method cannot guarantee the quality stability of the quartz pendulum plate and proposes a processing method for improving the reliability of the quartz pendulum plate, which comprises the following steps: firstly, carrying out glue removal treatment on the etched quartz pendulum plate; secondly, heating an ultrasonic cleaning agent tank and a hot water tank; firstly, placing the quartz pendulum plate into the ultrasonic cleaning agent tank to carry out ultrasonic cleaning, then placing the quartz pendulum plate into the hot water tank to carry out cleaning, and then sequentially placing the quartz pendulum plate into multiple deionized water tanks to carry out cleaning; thirdly, placing the cleaned quartz pendulum plate into a slow-drawing baking equipment to carry out drying treatment; fourthly, placing the dried quartz pendulum plate into a vacuum drying box to carry out first aging treatment; fifthly, placing the quartz pendulum plate after the first aging treatment into a vacuum evaporation machine to carry out vacuum evaporation treatment; and sixthly, placing the quartz pendulum plate into the vacuum drying box again to carry out second aging treatment, so that the cleaning of the quartz pendulum plate is completed.

This utility model discloses an energy-saving low-temperature desalination and dehydration device, relating to the technical field of desalination and dehydration equipment. It includes a vacuum evaporator and a feed inlet: the feed inlet is located above the vacuum evaporator. After the concentrated water discharged from the membrane separation component of this energy-saving low-temperature desalination and dehydration device enters the crystallization reactor, a second motor drives the drive shaft to rotate, causing the wall-scraping agitator to operate continuously within the crystallization reactor. This agitation promotes uniform crystallization of salts in the solution, preventing disordered crystal growth due to localized supersaturation, thus improving crystallization efficiency and purity. Furthermore, the outer end of the wall-scraping agitator moves closely against the inner wall of the crystallization reactor, effectively preventing crystals from adhering to the reactor wall and forming scale, thus avoiding impact on the reactor's heat transfer efficiency and subsequent cleaning difficulty. This ensures uniform solid-liquid distribution of the mixed liquid entering the centrifugal separator, providing favorable conditions for subsequent solid-liquid separation, thereby guaranteeing the efficient and stable operation of the entire desalination and dehydration process.

The application provides an ultra-high vacuum evaporation device which is convenient to process, a first magnetic push rod conveying device, a second magnetic push rod conveying device and a preparation chamber, a cleaning chamber, an evaporation chamber and an oxidation chamber which are sequentially connected are arranged, the evaporation chamber comprises an evaporation cavity, an evaporation assembly, an evaporation detection assembly, a second turnover driving device and a third grabbing device, through the above-mentioned mechanism, the evaporation surface is absolutely perpendicular to the evaporation source, the evaporation detection assembly is combined to realize the extreme precision of the film layer uniformity and thickness; meanwhile, the evaporation assembly is designed as a movable multi-crucible evaporation source, the quick and accurate switching and alignment of different evaporation materials are realized, the efficient sequential evaporation or co-evaporation is supported, the process flexibility and the production capacity are significantly improved; each shading plate and crucible cover plate effectively prevent the evaporation material from polluting the chamber, key components such as a probe, an observation window and subsequent wafers, the maintenance demand is greatly reduced, and the long-term stable operation of the equipment and the film layer purity are ensured.

The application discloses a vacuum evaporation perovskite laser device, which comprises a substrate, a conductive substrate, a first layer of transport layer, a gain layer, a second layer of transport layer and a metal electrode, wherein the gain layer is a vacuum evaporation perovskite material, the composition of the perovskite material is ABX3, A is a monovalent cation, B is a metal cation, and X is an anion; and the laser device or the perovskite gain medium realizes laser emission under femtosecond laser pumping. The application realizes preparation of a photoelectric cooperative laser device based on vacuum evaporation perovskite under low-temperature conditions, and the preparation method meets the demand of large-area and batch preparation, is compatible with the industry, and has an industrial application prospect.

The application discloses a thin film aluminum-plated composite current collector and a preparation method thereof, and relates to the technical field of current collectors. The application firstly performs low-temperature plasma treatment on a base film to introduce hydroxyl groups, then immerses the base film into a modified liquid containing an acylhydrazone bond intermediate A, and forms a modified base film containing a dynamic covalent bond through heating and epoxy ring opening crosslinking; subsequently, a micron-level aluminum layer is deposited on both sides of the base film through magnetron sputtering and vacuum evaporation; finally, the aluminum layer is subjected to gradient heat treatment assisted by a magnetic field to optimize the grain orientation and refine the grains of the aluminum layer; the dynamic covalent bond layer forms a coordination bond with aluminum atoms through a nitrogen-containing functional group to improve the interface bonding strength, and the dynamic covalent bond and the crosslinking network endow the base film with excellent stability and electrolyte blocking ability; the gradient heat treatment assisted by the magnetic field optimizes the electrical conductivity and mechanical properties of the aluminum layer in cooperation, and also releases the internal stress of the film, effectively avoiding product curling or cracking. The thin film aluminum-plated composite current collector prepared by the application has the effects of good electrical conductivity, high interface bonding and excellent electrochemical stability.

The application discloses a SERS substrate for detecting malachite green and a preparation method thereof, and belongs to the technical field of Raman spectroscopy.The preparation method of the substrate is as follows: a PET film is preprocessed by sanding to form a micron-level gully structure on the surface of the PET film; the treated PET film is subjected to oxygen plasma treatment to etch nano-protrusions on the surface of the micron-level gully structure and introduce oxygen-containing polar groups on the surface of the PET film; and a silver layer is grown on the treated PET film by a vacuum evaporation method to obtain a SERS substrate with a micro-nano composite structure for detecting malachite green.The method constructs a micro-nano composite structure on the surface of the PET film through the synergistic effect of sanding and oxygen plasma treatment, greatly improves the SERS activity of the subsequently deposited silver layer, significantly enhances the bonding force between the silver layer and the substrate, and enables the substrate to have high sensitivity, high uniformity, excellent mechanical stability and reusability.

This invention belongs to the field of cosmetic technology, specifically disclosing a deep-sea water mineral powder, its preparation method, and its application. The preparation method includes the following steps: vacuum evaporation and concentration of deep-sea water to obtain a concentrated solution; adding NaOH solution dropwise while stirring to adjust the pH, continuing stirring, centrifuging, discarding the precipitate, and obtaining the reactant; adjusting the pH to acidic, stirring at a certain speed, adding tannic acid solution dropwise, gradient heating, and allowing to stand for aging to obtain the reaction mixture; centrifuging to separate the precipitate, washing, and obtaining a wet filter cake; vacuum drying, pulverizing, and sieving to obtain the deep-sea water mineral powder. This deep-sea water mineral powder exhibits excellent water-holding capacity and oil-controlling properties, as well as excellent antioxidant activity, showing promising application prospects as a cosmetic raw material.

The present application belongs to the technical field of oil and gas field waste treatment, and discloses a prying type shale gas exploitation high-salt flow-back fluid on-site treatment device and method, which comprises, in sequence along the flow direction of the flow-back fluid, an oxidation unit, a flotation unit, a chemical precipitation unit, a coagulation and precipitation unit, a vacuum evaporation unit and a crystallization unit, which are connected in series and communicated through connecting pipes, the oxidation unit is provided with a liquid inlet pipe for introducing the flow-back fluid, and the crystallization unit is provided with a liquid outlet pipe; the oxidation unit, the flotation unit, the chemical precipitation unit, the coagulation and precipitation unit, the vacuum evaporation unit and the crystallization unit are integrated in a container body to form a prying type structure which can be moved as a whole; the process combination of "oxidation-flotation-chemical precipitation-coagulation and precipitation-vacuum and pressure reduction evaporation concentration-crystallization salt treatment" is used to replace the traditional membrane concentration, the membrane pollution problem is avoided, the prying type structure is movable, zero liquid discharge of the flow-back fluid is realized, and the crystallization salt is recycled.

The management device (100) of the present invention is a management device that manages a vacuum evaporation water production device (1) that produces fresh water from seawater, characterized by: an operation state acquisition section (110) that acquires information about an operation state of the vacuum evaporation water production device (1); and an abnormality detection section (120) that detects an abnormality of the vacuum evaporation water production device (1) based on the aforementioned information acquired by the operation state acquisition section (110).

This utility model belongs to the field of coal chemical wastewater treatment, specifically relating to a falling film evaporator, including a multi-effect heater and a multi-effect evaporator separator. Each effect evaporator separator includes a vacuum evaporator, a feed inlet, a U-shaped tube, several support rods, a conical cap, and a support frame. The feed inlet is located on the side wall of the vacuum evaporator. The U-shaped tube is located inside the vacuum evaporator, with its inlet end connected to the feed inlet and its outlet end in an inverted trapezoidal shape. Several support rods are located at the top of the outlet end of the U-shaped tube, and the conical cap is located on the top of the support rods, submerged in the concentrated liquid inside the vacuum evaporator. The support frame is located inside the vacuum evaporator, with one end connected to the inner side wall of the vacuum evaporator and the other end connected to the outlet end of the U-shaped tube. This utility model not only solves the problem of mist entrainment in traditional devices but also provides a falling film evaporator separator with uniform heat exchange, stable operation, no mist entrainment, and labor savings.

The application provides a preparation method of a liquid crystal polarization holographic device, and the method comprises the step of forming a liquid crystal film on a substrate by vacuum evaporation. The step of vacuum evaporation comprises: liquefying and atomizing an evaporation material, then gasifying the evaporation material to obtain an evaporation material mixed gas; introducing the evaporation material mixed gas into a film plating cavity, so that the evaporation material mixed gas condenses on the substrate to form a liquid crystal film, and then irradiating the liquid crystal film with ultraviolet light for curing. The application adopts vacuum film plating, and the method does not need a solvent, can form a liquid crystal polarization holographic device based on optical orientation with a multi-layer structure and a continuous gradient structure, and eliminates the crosstalk problem between the multi-layer liquid crystal films.

A deposition source for a vacuum deposition apparatus is provided, in which, when a crucible filled with a deposition material is heated in an induction heating manner, the entire crucible including a lid is in a top heating state. The deposition source (DS1) includes a crucible (4) filled with a deposition material (Vm), a lid (5) that blocks an upper surface opening (4a) of the crucible, and an induction heating coil (6) disposed around the crucible and the lid. An outlet portion (51a) that allows the deposition material vaporized or sublimated by heating to pass through is provided on the lid. A protrusion (52b) having a corner portion is provided on an outer surface of the lid.

This invention relates to an autonomous desalination device, comprising a vacuum evaporation-condensation tower, a freshwater storage tank, a power supply, and a control unit. The evaporation-condensation tower includes an outer pipe and an inner pipe connected to an evaporation chamber. Inside the evaporation chamber is an expanded portion of the inner pipe and a heating radiator. The inlet and outlet of the heating radiator are connected to a coolant supply line and a coolant discharge line, respectively. The coolant moves along a closed loop consisting of a first circulation pump, a solar collector, the coolant supply line, the heating radiator, and the coolant discharge line. The coolant discharge line is constructed as two adjacent main lines, one partially passing through a first heat exchanger and the other partially passing through a second heat exchanger. The condensation chamber is located above the evaporation chamber. A cooling radiator is installed inside the condensation chamber, with its inlet and outlet connected to the coolant supply line and the coolant discharge line, respectively. The condensation chamber is connected to the freshwater storage tank via a freshwater discharge line passing through the first heat exchanger. The freshwater storage tank is connected to an ejector pump, which is connected to the condensation chamber.