58results about How to "Guaranteed vacuum environment" patented technology

The invention discloses a TiO2-quantum-dot-and-MoS2-nanometer-flower-combined heterojunction semiconductor material comprising MoS2 nanometer flower and TiO2 nanometer particles. A large amount of the TiO2 nanometer particles are uniformly distributed on the surface of the MoS2 nanometer flower, and are well compounded on the pedals. The TiO2 nanometer particle phase is in a punctiform dense distribution. The invention also discloses a preparation method of the TiO2-quantum-dot-and-MoS2-nanometer-flower-combined heterojunction semiconductor material. According to the method, with a two-step solvothermal method, the punctiform TiO2 nanometer particles are uniformly grown on the MoS2 nanometer flower, such that the material with a good composite morphology is obtained. The method provided by the invention has the advantages of simple operation, high yield, low preparation cost, and the like. The material provided by the invention has great development and application potential in the fields of photo-catalysis industrial wastewater and field emission.

The invention belongs to the technical field of composite material formation, and relates to an encapsulation method for reducing vacuum leakage in composite material formation in an autoclave composite material forming process. An inner ring sealing rubber strip and an outer ring sealing rubber strip are arranged in the method, a first sealing space is formed between a prepreg and an inner ring sealing ring, and a second sealing space is formed between the inner ring sealing ring and an outer ring sealing ring. When the outer ring encapsulation material leaks, the second sealing space is communicated with the external space; and because the first sealing space is isolated with the second sealing space, the air of the external space can only enter the second sealing space, and vacuum environment of the first sealing space is kept. By adopting the encapsulation method, two sealing spaces are formed around a workpiece, so that the problem of vacuum leakage in solidifying formation of a composite material at a high temperature and under a high pressure can be effectively solved; and tests prove that the probability of vacuum leakage in the solidification process is reduced from original over 90 percent to below 20 percent.

The invention relates to a vacuum cover, a stirring device with the vacuum cover and a storage device. The vacuum cover comprises a vacuum cover body, a one-way valve, a minipump, a circuit board and a power source, and an air exhaust opening is arranged in a containing cavity of the vacuum cover body; the one-way valve is arranged in the extraction opening, and the one-way valve is provided with an air flow groove communicated to the air exhaust opening; the minipump is arranged in the containing cavity and comprises an air exhaust nozzle and an air discharging nozzle, and the air exhaust nozzle is connected to the air flow groove of the one-way valve through a pipe; and the circuit board and the power source are arranged in the containing cavity and are electrically connected to the minipump. According to the vacuum cover, the minipump is arranged in the containing cavity, and the vacuum cover has the vacuumizing function. When a stirring container needs to be vacuumized, only a cover of the common stirring container needs to be replaced with the vacuum cover, and the aims of stirring after vacuumizing can be achieved. when a user only needs a single stirring function, only the vacuum cover needs to be replaced with the cover with the common stirring container, allocation of two stirring machines is not needed, and the requirements of the user for achieving different functions through one stirring machine are met.

The invention discloses a stem cell transportation box. A main box body is included and internally provided with a liquid nitrogen cavity. An inner box body is arranged in the liquid nitrogen cavity.The outer end of the inner box body and the inner wall of the liquid nitrogen cavity are elastically connected through damping springs, and the four sets of damping springs are arranged and achieve the damping function. Stand bars symmetrically arranged left and right are fixedly arranged at the bottom end of the main box body. A liquid nitrogen box plate is arranged at the bottom end of the mainbox body and tightened to the bottom end of the main box body through screws in a threaded manner. A liquid nitrogen box located in the liquid nitrogen cavity is fixedly arranged at the top end of theliquid nitrogen box plate and can volatilize liquid nitrogen, and heat preservation is achieved for the inner box body. A stem cell transportation box opening mechanism is provided with passwords, itcan be guaranteed that the transportation box cannot be opened at will, and a storage and taking mechanism facilitates storage and taking of stem cell test tubes. The device is good in damping and buffering function, a transmission structure of the device is simple, and faults are not likely to happen.

The invention discloses a vacuum pressure test device, including an electric control box and a vacuum box located above the electric control box. The vacuum box comprises a door body, a motor base plate, an automatic feeding mechanism located on the motor base plate, a motor driving the automatic feeding, a pressure sensor, and a temperature sensor. The electric control box contains a power supply, a switchboard, a vacuum generator, a PCB control panel and a motor driver. A plurality of support portions and tail plug modules are mounted fixedly on the motor base plate. A plurality of guide shafts are disposed below the automatic feeding mechanism. The guide shafts are disposed on the support portions and the tail plug modules in a penetrating and sliding manner. The automatic feeding mechanism comprises a carrier plate, a plurality of accommodating cavities located in the carrier plate, and a sealing plate mounted fixedly with the accommodating cavities. The accommodating cavities and the tail plug modules can be mounted in a plugging manner. The door body is provided with an accommodating portion for accommodating the sealing plate. The sealing plate and the door body are mounted in a sealed manner. The vacuum pressure test device is good in vacuum sealing performance, simple and convenient to operate, high in automation degree and easy to maintain and implement.

The invention relates to the technical field of steam turbine generator units, and particularly provides a cogeneration unit heat supply method and heat supply system which solve the contradiction that the heat load demand and the electrical load peak regulation are difficult to schedule simultaneously in the heat supply period. According to the heat supply method and system, a high-back-pressureheat storage mode can be adopted when the heat load demand is low and the electrical load demand is high, a high-back-pressure heat release mode is adopted when the heat load demand and the electricalload demand are high and the heat load demand is higher than the heat production amount matched with the electricity production amount produced according to the electrical load demand by the unit, alow-pressure cylinder near-zero output heat storage mode is adopted when the electrical load demand and the heat load demand are low, and a low-pressure cylinder near-zero output heat release mode isadopted when the electrical load demand is low, the heat load demand is high and the heat load demand is higher than the heat production amount matched with the electricity production amount producedaccording to the electrical load demand by the unit.

The invention discloses a halogen lamp producing technique. The halogen lamp producing technique comprises the step of bulb shell production, filament production, wick production, bulb production, and assembly. In the bulb shell manufacturing technique, a quartz tube serves as the raw material, so that the product lumens are effectively improved, and the light is more definite; the quartz tube are sawed twice and repeatedly cleaned, so that the problem of tube breakage in the tube sawing process is solved; through secondary wet hydrogen shaping and hydrogen-annealed shaping after primary shaping, the hydrogen element is increased; certain oxide impurities can be removed during heating in a hydrogen environment; after tungsten filaments are heated in the hydrogen environment, atoms in the tungsten filaments become atoms with more stable lattice structures, so that the tungsten filaments cannot droop during long-term use, and accordingly, the service life of a halogen lamp is prolonged; as nitrogen which has no reaction with the material is added, the vacuum environment of the filaments is guaranteed, the service life is prolonged, and the lumen level is improved.

The invention discloses a vacuum continuous coating system for a strip material and a transition cabin unit used by the same, belongs to the technical field of vacuum continuous coating, provides a transition cabin unit for vacuum continuous coating of the strip material in order to meet the vacuum requirements needed by the vacuum coating system, and further provides a system capable of conducting continuous vacuum coating on the strip material so as to solve the problem that in an existing coating system, all technological devices and cabins need to be arranged in a full-closed large vacuumcabin body. According to the vacuum continuous coating system for the strip material and the transition cabin unit used by the same, the transition cabin units can be only arranged on the conveying tracks on the two sides of a strip material entrance and exit vacuum coating area, therefore, conveying channels corresponding to the conveying tracks of the strip material can be isolated and sealed, and a vacuum environment formed in the vacuum coating area is effectively guaranteed; and therefore a full-closed large vacuum cabin body does not need to be arranged to contain an unwinding mechanism,a winding mechanism, the vacuum coating area and a whole conveying channel of the strip material in an enclosing mode.

The invention discloses an overturning sliding cavity door structure, a plasma vacuum cavity and plasma treatment equipment. The cavity door structure comprises a slide rail, a mounting rack slidablymounted on the slide rail and a cavity door rotatably connected in the mounting rack. Material rest trays are arranged on two sides of the cavity door, a vertical rotating shaft is mounted in the middle of the cavity door in a penetrating manner, the vertical rotating shaft is mounted in the mounting rack, and the vertical rotating shaft is driven by a driving mechanism A located on the top of themounting rack, the cavity door under the action of the driving mechanism A rotates in the mounting rack around the vertical rotating shaft, and the mounting rack is driven by an external driving mechanism B to slide; and the plasma vacuum cavity and the plasma treatment equipment adopt the overturning sliding cavity door structure. By arranging the rotary vacuum cavity door, the positions of thematerial rest trays can be exchanged, so that a purpose of changing in-out materials quickly is further achieved.

A ramp sheet resistance type metallized film evaporation device comprises a box body, a metal film main body penetrates through the top of the interior of the box body, and the two ends of the metal film main body are connected with traction mechanisms; the side wall of the box body communicates with a vacuum pump; an evaporation mechanism is mounted at the bottom of the interior of the box body, and is horizontally arranged at the bottom of the metal film main body; the evaporation mechanism is used for evaporating a metal agent on the metal film main body; and a first sealing mechanism and a second sealing mechanism are symmetrically arranged at the top of the interior of the box body. According to the ramp sheet resistance type metallized film evaporation device, the metal film can be subjected to dust removal and impurity removal treatment, the attaching effect on the metal film and an evaporation material is improved, and the uniformity and stability of an evaporation layer are improved; and the second sealing mechanism can cool the metal film, so that the evaporated film can be cooled by metal, the conductivity of the metal film can be effectively ensured, and the metal film is prevented from being damaged by heat.

According to the stirring and sealing device for preparing the epoxy-inorganic filler composite material and the operation method, by arranging a stirring and sealing mechanism, when a stirrer fixed to a dynamic sealing structure conducts stirring operation, a dynamic sealing spring in the dynamic sealing structure extrudes a dynamic sealing rubber ring upwards under the action of rotating torque, and the sealing effect in the rotating process is achieved; the interior of the constant-temperature drying box is subjected to air extraction through the air extraction pump to generate vacuum, so that air in the epoxy-inorganic filler composite material is continuously extracted in the stirring process, meanwhile, constant-temperature drying in the stirring process is kept, and generation of bubbles in the operation process is reduced and avoided; the stirred epoxy-inorganic filler composite material is directly poured into a mold under the action of gravity in a vacuum environment; the device is integrally arranged, the time of the process of preparing the epoxy-inorganic filler composite material can be greatly shortened, meanwhile, the whole process is sealed in a vacuum mode, and the material preparation yield is high.

The invention discloses an online monitoring device for the sheet resistance of a metallized film, and the device comprises a measurement and control main unit (1) disposed in a vacuum evaporation chamber, a man-machine interface (2) installed outside the vacuum evaporation chamber, and a vacuum electrode flange (3) which is electrically connected with the interior and exterior of the vacuum evaporation chamber. The measurement and control main unit (1) comprises a rack (11), a controller which is fixedly disposed on a vertical plane of the rack (11), and at least one pair of light source emitter (12) and light source receiver (13) which are fixedly disposed on a horizontal plane of the rack (11). The man-machine interface (2) is fixedly disposed on a control box operation plane outside the evaporation chamber, and the vacuum electrode flange (3) is fixedly disposed on a side wall hole (4) of the vacuum evaporation chamber. The device does not need to make contact with a metal coatinglayer on the metallized film, can reflect the uniformity of the coating layer in real time, and facilitates the improvement of the quality of the coating layer.

The invention discloses a locking device used for locking a door cover at the preset position away from a vacuum equipment body. The locking device comprises a base part arranged on the vacuum equipment body, and an inserting part arranged on the door cover. At least one concave part at least partially matched with the inserting part is arranged on the base part. The inserting part can move from an unlocking position to a locking position and from the locking position to the unlocking position on the concave parts. The invention further discloses the door cover which comprises the vacuum equipment body and is rotationally arranged on the vacuum equipment body, and the vacuum equipment of the locking device. The vacuum equipment body is connected with the door cover through a hinge structure. The locking device and the vacuum equipment are simple in structure and convenient to operate, and the vacuum environment of the vacuum equipment can be effectively guaranteed.

The invention relates to the field of display technologies, and provides an OLED (Organic Light-Emitting Diode) display device packaging method and an OLED display device. The packaging method comprises the steps of fabricating an OLED panel on a substrate; sequentially preparing a first organic protection layer and a second inorganic protection layer on the OLED panel; preparing a metal film on the side surface of the second inorganic protection layer, wherein the metal film is flush with the upper surface of the second inorganic protection layer; preparing a third organic protection layer onthe second inorganic protection layer and the metal film; arranging glass cement on the side surfaces of the OLED panel, the first organic protection layer, the metal film and the third organic protection layer, wherein the glass cement is flush with the upper surface of the third organic protection layer; and covering the third organic protection layer and the glass cement with a cover plate above, and hardening the glass cement so as to complete the packaging. The OLED device is packaged by combining the combination of multiple films, the metal film and the glass cement, and the thermal conductivity, sealing performance and structural strength of the device are increased. The method is simple in process, conducive to cost control and capable of being applied to industrial production.

The invention provides a continuous type vacuum dough mixer. The continuous type vacuum dough mixer comprises a shell and a vacuumizing device, wherein the inner part of the shell is divided into three continuous sealing working chambers by openable first and second doors, the three continuous sealing working chambers are respectively a flour containing chamber, a dough kneading chamber and a dough containing chamber; the vacuumizing device is communicated with the three continuous sealing working chambers through pipes, so as to perform a selective vacuumizing operation on the three continuous sealing working chambers in the process of feeding, dough kneading and dough discharging. The invention also provides a method for continuous dough kneading by using the continuous type vacuum dough mixer. Through the continuous type vacuum dough mixer provided by the invention, continuous dough kneading can be realized, the subsequent continuous production of noodles in a processing plant is facilitated, a dough kneaded by using the continuous type vacuum dough mixer has the advantages that the surface is loose, the inner part is uniform, gluten value of the dough is high, the elasticity is good, and the processed flour food is smooth in taste, high in transparency and good in elasticity.