2664 results about "Pumping vacuum" patented technology

The utility model discloses a vacuum cooling temporary storage mechanism and thin film deposition equipment, and relates to the technical field of semiconductor equipment. The vacuum cooling temporary storage mechanism comprises a temporary storage bin, a sealing gate valve, a storage box, a vacuumizing assembly and a cooling module. The vacuumizing assembly is connected with the temporary storage bin, the storage box is arranged in the temporary storage bin, the temporary storage bin is provided with a conveying opening, the sealing gate valve is used for closing or opening the conveying opening, the cooling module is connected with the temporary storage bin, and the cooling module is used for cooling the temporary storage bin. Compared with the prior art, the vacuum cooling temporary storage mechanism provided by the utility model adopts the vacuumizing assembly connected with the temporary storage bin and the sealing gate valve mounted in the temporary storage bin, so that the cleanliness of the temporary storage bin can be ensured, the temporary storage bin is prevented from being influenced by the transmission bin, gas in the temporary storage bin can be directly pumped out, and the service life of the temporary storage bin is prolonged. And heat emitted by the wafer is rapidly taken away, and the cooling efficiency is high.

The invention discloses a vacuum negative pressure vibration assisted precision casting forming method. The method comprises the steps of model preparation, sand box and dry sand pretreatment, layered vibration sand filling, film covering vacuumizing, molten metal smelting and purification treatment, negative pressure vibration pouring, pressure maintaining solidification, segmented temperature control and pressure relief box opening and multi-stage cleaning aftertreatment. The core of the method is that mechanical vibration and a vacuum negative pressure technology are deeply coordinated and penetrate through the whole process of modeling, pouring and solidification, and meanwhile, a series of fine control means such as dry sand accurate pretreatment, molten metal rotary blowing degassing and instantaneous inoculation, stepped negative pressure control, temperature-related segmented pressure relief and two-stage shot blasting cleaning are matched; through dynamic cooperation of vibration and negative pressure, the sand mold compaction uniformity, the molten metal mold filling capacity and the solidification feeding effect are remarkably improved, the casting defects of air holes, shrinkage porosity, insufficient pouring and the like are effectively reduced, and the internal density, the size precision and the surface quality of a casting can be remarkably improved.

The invention belongs to the technical field of treatment of special gas packaging gas cylinders, and particularly relates to a treatment method and application of a mixed gas packaging gas cylinder, and the treatment method comprises the following steps: S1, filling a packaging gas cylinder with monosilane mixed gas, maintaining the pressure, and then carrying out vacuum-pumping treatment; s2, filling the dry compressed air, maintaining the pressure, then vacuumizing, and repeatedly filling the dry compressed air, maintaining the pressure and vacuumizing for 2-3 times; and S3, nitrogen is refilled, then vacuumizing treatment is carried out, and nitrogen filling and vacuumizing are repeatedly carried out 5-8 times. S4, target mixed gas with the pressure of 50 psig-150 psig and the concentration of 50-100 times is filled and stored for 24-168 h, then the target mixed gas in a mixed gas packaging gas cylinder is analyzed, if the target mixed gas is smaller than or equal to three times of the index before filling, it is judged that treatment is qualified, and otherwise the steps S1-S3 are repeated. The interior of the gas cylinder is pretreated, a silicon-based isolation layer is formed on the inner wall of the gas cylinder, and the corrosion resistance of the interior of the gas cylinder is improved.

The invention discloses automobile part welding equipment and a welding method thereof, and relates to the technical field of automobile part welding, the automobile part welding equipment comprises a machining table, a welding mechanism is mounted on one side of the machining table, a moving table is mounted on one side of the welding mechanism, rotating mechanisms are mounted at the two ends of the moving table, and each rotating mechanism comprises a second sleeving plate. A first electric push rod drives a movable plate to drive a fixing frame to adjust the position, so that a plurality of vacuum suction cups are attached to the to-be-sucked area of the automobile part, a vacuum controller conducts vacuumizing through a connecting pipeline to form stable negative pressure suction force, and preliminary positioning of the part is achieved; the clamping claws are driven by the connecting rods to get close to and clamp the edge of a part, a double-fixing structure of vacuum adsorption and mechanical clamping is formed, the translation, shaking and overturning tendency of the part in the welding process is limited, and the stability and consistency of a welding datum are guaranteed.

The invention discloses a mortar material conveying and forming device which comprises a machining table, a conveying device is arranged on the machining table, a mold is arranged on the conveying device, a mold cavity is formed in the mold, a sprue gate matched with the mold cavity is formed in the top end of the mold, a storage tank is arranged on the machining table, and a discharging pipe matched with the sprue gate is arranged below the storage tank. Moving plates are arranged on the two sides of the machining table through adjusting assemblies, beating mechanisms are arranged on the moving plates, vacuumizing assemblies are further arranged on the moving plates, and vacuumizing pipes matched with the vacuumizing assemblies are arranged at the top ends of the molds. The mold adopts an openable structure and is integrated with the heating device, the mold cavity is preheated through the heating device in the cavity, the viscosity of a mortar material is effectively reduced, the fluidity of the mortar material is improved, and therefore the problem that in the prior art, the filling efficiency is low due to high mortar viscosity is solved; and the forming requirements of thin-wall, special-shaped and other complex cavity components are met, and meanwhile material hardening waste is avoided.

The invention discloses a high-power and frequency-adjustable gyrotron loading test system for nuclear fusion, which relates to the technical field of nuclear fusion and comprises a 2-megawatt coaxial gyrotron with adjustable frequency of 170 / 240GHz and a loading test platform. The loading test platform comprises a gyrotron part loading system, a strong magnet system, a vacuumizing system, a power supply system, a load system, a cooling system, a monitoring and diagnosing system and a control system. The component loading system is used for precise assembly; the strong magnet system provides an adjustable strong magnetic field; the vacuumizing system maintains ultrahigh vacuum; the power supply system comprises a cathode power supply and a body power supply, and the body power supply is used as a high-voltage amplifier to realize 10kHz rapid power modulation; the cooling system provides independent active cooling; the load system simulates a real load; comprehensive detection of the monitoring and diagnosis system; and the control system realizes coordinated control and rapid protection. According to the invention, a complete solution is provided for development, test, operation and maintenance of the 2-megawatt-level and frequency-adjustable gyrotron.

The invention discloses a power plant condenser steam injection vacuumizing system and method, and belongs to the technical field of electric power engineering. The system comprises an environmental parameter monitoring module which is used for monitoring and collecting key parameters of an external environment of a power plant in real time; the unit operation parameter acquisition module is used for performing high-precision real-time acquisition on unit core operation parameters to form unit dynamic operation characteristic data; the steam loop state detection module is used for detecting state information in a steam loop on line; the multi-stage steam ejector group automatically switches stage configuration according to different working conditions, and realizes graded adjustment of the vacuumizing capacity of a condenser; the electric regulating valve group is used for accurately regulating the steam supply quantity of each ejector channel to realize dynamic matching of flow and pressure; the intelligent bypass control module is used for stably regulating and controlling the switching process of the ejector based on amplitude limiting and anti-oscillation logic; and the self-learning parameter library module is used for recording and updating optimal operation parameter combinations under different working conditions.

A method of processing a substrate comprising: positioning the substrate on an upper surface of a substrate holder in a first chamber, wherein the substrate holder comprises one or more vacuum channels disposed at the upper surface and one or more electrodes disposed within the substrate holder proximate to the upper surface; while the substrate holder is within the first chamber, clamping and flattening the substrate to the substrate holder by applying a vacuum to the one or more vacuum channels; while the substrate is clamped to the substrate holder via the one or more vacuum channels, applying a voltage to the one or more electrodes to further clamp the substrate to the substrate holder with an electrostatic force; pumping out the first chamber to a vacuum pressure while continuing to clamp the substrate to the substrate holder with electrostatic force; while the substrate is clamped to the substrate holder by electrostatic force, transferring the substrate holder from the first chamber into a second chamber under vacuum conditions; and while the substrate holder is within the second chamber, maintaining the electrostatic force clamping the substrate to the substrate holder, and processing the substrate in the second chamber at a vacuum pressure.

A vacuum insulating panel may include: a first substrate; a second substrate; a plurality of spacers provided in a gap between at least the first and second substrates, wherein the gap is at pressure less than atmospheric pressure; an evacuation tube for evacuating the gap and which may extend at least partly into one of the substrates or be otherwise mounted / supported; and an evacuation tube seal at least partially surrounding the tube. A glass composition of the evacuation tube may contain a high amount of total iron (including oxides thereof) to improve the tube's tip seal. A tip seal, at an end and / or tip portion of the tube, may include a first side including a convex surface and / or a second side including a concave surface.

The utility model relates to an inner flow channel cleaning device of a liquid cooling product, which sequentially comprises a flow resistance measuring process, a dynamic cleaning process and a drying process, and comprises the following steps of: clamping the liquid cooling product on a turnover or rotatable jig; hot water is introduced into the liquid-cooled product, and an inner flow channel of the liquid-cooled product is cleaned while the liquid-cooled product rotates; and vacuumizing the inner flow channel of the cleaned liquid cooling product, and drying the inner flow channel by utilizing the low boiling point characteristic and residual temperature of vacuum water. According to the utility model, dynamic cleaning of the inner flow channel can be realized, and the liquid cooling product is overturned in the cleaning process, so that laminar flow formed in the inner flow channel of the liquid cooling product is disrupted, vortexes formed at corners are vibrated and dispersed, impurities such as chippings and the like are effectively taken away, each part of the inner flow channel of the liquid cooling product is cleaned as much as possible, and the cleaning efficiency is improved. And high-cleanliness cleaning of the flow channel in the liquid cooling product is realized.

This invention relates to a sampling device and method for sulfur hexafluoride (SF6) and its mixed gases used in electrical equipment. The sampling device includes an equipment connection module, a sampling module, a gas filling module, and a vacuuming module. The equipment connection module, used to connect the electrical equipment and the gas sampler, consists of an equipment connection valve, a diaphragm pump, and corresponding pipelines. The sampling module, used for gas buffering, consists of a sampling cylinder, a pressure detection unit, a sampling valve, a gas filling valve, a tail gas valve, and corresponding pipelines. The gas filling module, used to fill the sampling container, consists of a booster pump, a sampling container connection valve, and corresponding pipelines. The vacuuming module, used for vacuuming and tail gas collection, consists of a vacuum pump, a tail gas collection device, and its connection valves. The sampling method utilizes appropriate flushing and vacuuming methods when the gas pressure is higher or lower than 0.2 MPa. This sampling device and method can improve the accuracy of sampling sulfur hexafluoride gas or sulfur hexafluoride mixed insulating gases.

A method of processing a substrate is disclosed that comprises: transferring the substrate into a processing chamber and positioning the substrate on an upper surface of a substrate holder in the processing chamber, wherein the substrate holder comprises one or more vacuum channels disposed at the upper surface and one or more electrodes disposed within the substrate holder proximate to the upper surface; while the substrate holder is within the processing chamber, clamping and flattening the substrate to the substrate holder by applying a vacuum to the one or more vacuum channels; while the substrate is clamped to the substrate holder via the one or more vacuum channels, applying a voltage to the one or more electrodes to further clamp the substrate to the substrate holder with an electrostatic force; pumping out the processing chamber to a vacuum pressure while continuing to clamp the substrate to the substrate with the electrostatic force; and while the substrate is clamped to the substrate holder by the electrostatic force, processing the substrate in the processing chamber under vacuum conditions.

The invention discloses a friction stir welding closed type vacuumizing, heating and cooling shoe-shaped mold which mainly comprises an upper mold, an upper mold inner-layer flow channel welding sealing piece, an upper mold flow channel outer-layer welding sealing plate, a lower mold, a lower mold upper flow channel welding sealing plate, a lower mold lower flow channel welding sealing plate and a lower mold vacuumizing welding sealing plate. And the mold can be mounted on universal oil pressure equipment in the market for use through the bolt hole positions. And the upper mold is heated and cooled, and fluid enters from the upper mold runner inlet hole, the upper mold upper-layer runner and the upper mold lower-layer runner inlet hole, flows into the upper mold lower-layer runner, then flows back to the upper mold upper-layer runner from the upper mold lower-layer runner outlet hole, and flows out from the upper mold runner outlet hole. And the lower mold is heated and cooled, and fluid enters the lower mold upper runner from the lower mold runner inlet hole, flows to the lower mold vertical hole runner and the lower mold lower runner, and flows out from the lower mold lower runner outlet hole. According to the vacuumizing structure, a vacuumizing air hole in the bottom of a lower mold forming cavity is communicated with a lower mold vacuumizing hole air groove, a vacuumizing air hole in the side face of the lower mold forming cavity is communicated with a lower mold vacuumizing vertical air groove, and the lower mold vacuumizing vertical air groove is communicated with the lower mold vacuumizing hole air groove and a vacuumizing air exhaust hole. And air in the forming cavity of the lower mold is extracted outwards through the vacuumizing and air extracting hole.

The invention discloses a high-strength and high-plasticity copper alloy and a preparation method thereof. The high-strength and high-plasticity copper alloy is prepared by mixing Cu-Al pre-alloyed spherical powder and CuO powder according to the mass ratio of (100-150): 1, wherein the Cu-Al pre-alloyed spherical powder and the CuO powder are different in particle size range. The solid solution state Al element part in the high-strength plastic copper alloy is oxidized into Al2O3 through CuO, and the Al2O3 exists in a Cu matrix. The preparation method comprises the following steps: (1) mixing Cu-Al pre-alloyed spherical powder with CuO powder, and drying; (2) cold isostatic pressing treatment; (3) vacuumizing, sintering at a high temperature in a protective atmosphere, and cooling; (4) vacuumizing, reducing in a reducing atmosphere, and cooling; and (5) after preheating, the copper alloy reduction blank is placed in a rotary forging die, rotary forging and air cooling are conducted, and the copper alloy is obtained. The high-strength plastic copper alloy is good in conductivity and mechanical property and high in plasticity. The method is simple in process, environmentally friendly, low in cost and suitable for industrial production.

The invention belongs to the technical field of copper bar machining, and particularly relates to a copper bar continuous machining device and method.The copper bar continuous machining device comprises a vertical cabinet, a machining area is arranged on the vertical cabinet, a welding mechanism and a fixing mechanism used for copper bar fixing and transposition are arranged in the machining area, and an isolation hood with an upward opening is fixedly arranged on the lower side of the machining area; and a connecting pipe connected with external vacuumizing equipment is arranged on one side of the isolation hood. In the welding pressurization process, the two long edge sides of the end of the copper bar can be automatically and effectively supported and limited, lateral plastic flow generated by the copper bar under vertical pressure is directly restrained, it is ensured that the width of the end of the copper bar meets the preset precision requirement, the welding quality of the end of the soft copper bar is ensured, and the production efficiency is improved. A closed welding environment composed of the isolation cover and the sealing plate is arranged and matched with external vacuumizing equipment, the possibility that the high-temperature surface of the copper bar makes contact with oxygen to generate an oxide layer is eradicated, and welding failure caused by oxide inclusions is avoided.

The utility model relates to a cutting bed which comprises a machine frame, and the machine frame is provided with a feeding conveying belt, a discharging conveying belt, a film covering frame, a cutting knife, a pressure maintaining structure and an adsorption system for vacuumizing materials located on the feeding conveying belt. The adsorption system comprises an exhaust fan, an air inlet structure connected to the inlet end of the exhaust fan and an exhaust manifold connected to the outlet end of the exhaust fan, and the air inlet structure comprises an air inlet main chamber with the upper end closed through the feeding end conveying belt and an air inlet pipe communicated with the air inlet main chamber and the inlet end of the exhaust fan; the pressure maintaining structure comprises a front sealing plate and a rear sealing plate, wherein the front sealing plate is used for sealing the part, located in front of the cutting knife, of the materials on the feeding conveying belt, and the rear sealing plate is used for sealing the part, located behind the cutting knife, of the materials on the feeding conveying belt. The utility model provides the cutting bed which is high in precision when the fluffy fabric is cut, and the problem that the precision is low when the fluffy fabric is cut by an existing cutting bed is solved.

The invention discloses a titanium and titanium alloy vacuum consumable electric arc furnace smelting method in the technical field of metallurgy. The titanium and titanium alloy vacuum consumable electric arc furnace smelting method comprises the following steps that an electrode block with the preset size and density is machined; an electrode bar formed by splicing the electrode blocks is put into a vacuum arc welding box to be vacuumized; argon is filled, argon filling is stopped when the preset pressure is reached, and standing is maintained for the preset duration; argon is continuously filled, the pressure in the welding box reaches a preset range, electrode bar welding is conducted, and cooling is conducted for a preset duration after electrode bar welding is completed; the welded electrode bar and the prepared auxiliary electrode are placed in a VAR furnace for butt welding, and the self-consuming machine after butt welding is cooled for a preset time length; primary smelting; carrying out secondary smelting; after the electrode blocks are spliced and placed in a vacuum arc welding box, argon with preset pressure is filled, and standing is carried out for preset time, so that it is guaranteed that the argon can penetrate into the electrodes, oxidation in the welding process is reduced, ingot inclusion is reduced, and the surface quality is improved.

The utility model discloses a vacuumizing device and a polycrystalline silicon coral material water-quenching crushing system, relates to the technical field of polycrystalline silicon production, and mainly aims to remove water residues in a water-quenched polycrystalline silicon coral material and ensure the quality of a polycrystalline silicon packaged finished product. According to the main technical scheme, the vacuumizing device comprises a supporting frame and a lifting mechanism; a closed cavity is installed on the upper portion of the supporting frame, the upper end of the closed cavity is connected to a vacuum pump, an opening is formed in the lower end of the closed cavity, and the supporting frame below the closed cavity is fixedly connected to a bearing platform. The lifting mechanism comprises a driving gear, a rack and a sealing plate, the driving gear is rotationally connected to the bearing platform, the rack is slidably connected to the bearing platform through a guide rail, the driving gear is meshed with the rack, the upper end of the rack is fixedly connected to the sealing plate, the upper surface of the sealing plate is fixedly connected to the limiting groove and used for containing coral charge bars, and the sealing plate is matched with the opening.

A circulating cleaning and maintenance system for a vacuumizing device, the circulating cleaning and maintenance system comprising a vacuumizing unit and a liquid supply unit, wherein the vacuumizing unit comprises a vacuumizing device composed of at least a vacuum pump, an air inlet of the vacuum pump is connected, via a main-path air intake pipe, to an area where a medium to be evacuated is located, a main air intake valve is provided on the main-path air intake pipe, and an air outlet is connected to a main-path air output pipe and is provided with a main air output valve; an external air intake pipe is provided between the main air intake valve and the vacuum pump, and an atmospheric intake valve is arranged on the external air intake pipe; a circulating pipe is provided on one side of the vacuum pump, and a circulating valve is provided on the circulating pipe; and the liquid supply unit is configured to provide a cleaning liquid or a maintenance liquid to the vacuumizing unit. Further disclosed in the present invention is a use method for the circulating cleaning and maintenance system for a vacuumizing device. According to the present invention, the vacuum pump itself is used as a power source for cleaning, and in cooperation with the circulating pipe, forms a circulating airflow flowing at a high speed, so as to stir and disperse the cleaning liquid into the airflow to completely flush and clean the vacuum pump. A cleaning effect is good, the cost is low, the use time is short, and fully automated cleaning and maintenance can be achieved.

The utility model discloses an electrostatic vacuum plate structure and a filling type electrostatic vacuum plate, and relates to the field of vacuum plates, the electrostatic vacuum plate structure comprises an upper vacuum plate and a lower vacuum plate, the space between the two vacuum plates is in a vacuumized state to form a vacuum cavity, and the two ends of the vacuum cavity are subjected to heat edge sealing treatment; the upper vacuum plate, the lower vacuum plate and the sealing edges at the two ends are attached through flexible insulating aluminum plastic films containing PTFE layers; inner-layer aluminum foils are pasted on the upper vacuum plate and the lower vacuum plate in the vacuum cavity respectively, the two inner-layer aluminum foils sense same-polarity negative static electricity, external air pressure is resisted through electrostatic repulsive force, and the thickness of the vacuum cavity is maintained to be in the preset size. Compared with a traditional glass fiber vacuum plate, heat transfer of an inner core material is avoided, the heat conductivity is reduced, the thickness of the vacuum plate can be reduced to be within 0.5 mm, high-performance heat-insulation ultrathin performance is achieved, a hard plate is changed into a flexible film material, and the fitting adaptability of a product on different surfaces is greatly improved.

The invention discloses a plasma-assisted surface activation method. The method comprises the following steps: placing a material matrix in a reaction cavity, vacuumizing, introducing oxygen and inert gas, exciting a radio frequency power supply and a microwave power supply to form multi-frequency composite plasma, and treating the material. The physical bombardment of the radio frequency plasma and the chemical activation of the microwave plasma have a synergistic effect, and deep cleaning and efficient modification of the surface of the material are realized in a low-vacuum environment. The surface water contact angle of the treated material is reduced to 35 degrees or below, the adhesive force of a coating reaches 0-1 level, the tensile shear strength is improved to 22.5 MPa or above, the problems that a traditional surface treatment method is unstable in effect and insufficient in modification depth are effectively solved, and the surface treatment method has the outstanding advantages of being high in treatment efficiency, uniform and lasting in modification effect, environmentally friendly and the like.

The invention relates to the technical field of vacuum insulation manufacturing of liquid hydrogen storage and transportation equipment, and discloses a liquid hydrogen spherical tank vacuumizing and filtering multi-parameter cooperative control method and system, and the method comprises the steps: obtaining the temperature, vacuum degree and vibration monitoring data in a liquid hydrogen spherical tank, and space coordinates of the data; calculating a vacuum degree mean value and a vibration intensity mean value of each partition, and generating a multi-physical field heterogeneous partition topological structure; extracting a physical field coupling factor matrix by using a tensor decomposition algorithm, and identifying a dominant coupling relationship between physical fields; and scheduling the multi-parameter monitoring data to be transmitted in a shallow fading period according to the partition period quality label matrix, completing issuing of a scheduling cooperative control instruction before deep fading arrives, and outputting the control instruction to an execution mechanism. The overall performance and safety of the liquid hydrogen spherical tank vacuumizing and filtering multi-parameter cooperative control system are improved under the extreme environment of coupling influence of multiple physical fields such as a temperature field, a vacuum degree field and a vibration field.

The invention relates to the field of particle accelerators, in particular to an ultrahigh and extremely high vacuum acquisition system and method. The vacuum obtaining system comprises a vacuum obtaining device and a vacuum temperature control device, the vacuum obtaining device comprises a ceramic vacuum chamber, an interlayer vacuum chamber, a main pump chamber, a first vacuum pumping assembly and a second vacuum pumping assembly, the main vacuum chamber is formed in the ceramic vacuum chamber, and the ceramic vacuum chamber is arranged in the interlayer vacuum chamber; and an interlayer space is formed between the ceramic vacuum chamber and the interlayer vacuum chamber. The ceramic vacuum chamber is arranged in the interlayer vacuum chamber, the interlayer space is formed between the ceramic vacuum chamber and the interlayer vacuum chamber, and the interlayer vacuum chamber is heated through the heating element, so that the ceramic vacuum chamber is uniformly heated in a non-contact heat radiation uniform heating mode; the problem of thermal stress concentration caused by direct conduction heating of the ceramic vacuum chamber is thoroughly eliminated, leakage or fracture of the ceramic-metal joint caused by thermal stress is avoided, and the structural integrity of a heterogeneous material connecting area is ensured.

The utility model discloses an ultraviolet light curing lining hose vacuum glue pouring device which comprises a bottom plate, the right side of the top of the bottom plate is fixedly connected with a glue box, the left side of the glue box is fixedly connected with a positioning plate, the left side of the positioning plate is fixedly connected with a concave frame, the top of an inner cavity of the concave frame is fixedly connected with a supporting plate, and the supporting plate is fixedly connected with the bottom plate. According to the glue filling device, the concave frame, the supporting plate, the electric air cylinder and the arc-shaped clamping plate are arranged, the ultraviolet curing lining hose can be clamped and sealed, glue filling can be carried out on the ultraviolet curing lining hose through the sliding barrel, the sliding rod, the guide pipe, the metering pump, the liquid discharging hose, the liquid pumping pipe, the vacuum pump and the air pumping pipe, and meanwhile the vacuum pump and the air pumping pipe are arranged, so that the glue filling efficiency is improved. By means of the structure, the vacuum glue filling equipment has the advantage that vacuum glue filling is convenient when the vacuum glue filling equipment is used, so that the use requirements of customers cannot be met, and the influence on the product quality is avoided.

The invention discloses a high-voltage direct-current contactor sealing process and a high-voltage direct-current contactor, and the sealing process comprises the following steps: providing a ceramic assembly, a magnetic conductive plate, an iron core sleeve and a sealing sheet, carrying out the laser welding after the assembly to form a preliminary sealing assembly, and transferring the preliminary sealing assembly into sealing equipment; placing the sealing piece at the gas path through hole in the ceramic assembly or the magnetic conductive plate, and enabling the integrated connector to be attached to the peripheral area of the gas path through hole; the vacuumizing device vacuumizes the sealed cavity through the multi-way pipe fitting, and after the vacuum degree reaches the preset requirement, the vacuumizing device is closed; the inflating device is used for inflating protective gas into the sealed cavity through the multi-way pipe fitting; after air inflation is completed, the air inflation device is closed; the electric resistance welding device pushes the sealing piece to abut against the ceramic assembly or the magnetic conductive plate through the electric resistance welding connector and adopts the electric resistance welding technology to weld the sealing piece so as to completely seal the gas circuit through hole. The production efficiency can be improved, the cost and the product leakage rate are reduced, and the long-term sealing performance is improved.

The invention belongs to the technical field of functional composite materials, and particularly relates to an all-organic epoxy resin composite material as well as a preparation method and application thereof. The method comprises the following steps: S1, heating, melting and blending epoxy resin and phenolic hydroxyl polyphenyl ether to obtain a composite system; s2, adding a curing agent and a catalyst into the composite system, heating, stirring, reacting, vacuumizing, defoaming, casting the obtained mixed solution into a mold, curing, cooling and demolding to obtain the all-organic epoxy resin composite material. The heat conductivity coefficient of the obtained composite material is improved by 44.2% compared with that of pure epoxy resin, and the thermal expansion coefficient is reduced by 32.8%. The method is mild in condition, short in technological process, low in energy consumption and suitable for large-scale production, an innovative thought and an effective strategy are provided for development of a high-performance all-organic electronic packaging material, and silicon-free and ceramic-free all-organic upgrading of the packaging field is expected to be promoted.

The invention provides a CFRP / metal composite pipe based on paper folding configuration and a preparation method of the CFRP / metal composite pipe, and belongs to the technical field of composite materials. The CFRP / metal composite pipe is composed of a metal square pipe and a carbon fiber layer, the metal square pipe is an inner layer, and the carbon fiber layer is an outer layer. A paper folding structure is preset on the outer side of the pipe wall of the metal square pipe, the paper folding structure is formed by stacking and arranging V-shaped groove paper folding units composed of creases with specific angles, and the included angle between the alpha face and the beta face of each paper folding unit is 70 degrees. The metal origami inner pipe is integrally formed through the SLM selective laser melting technology, the geometric accuracy and structural integrity of origami configuration are ensured, the finished product is obtained through vacuumizing compaction and programmed heating and pressurization by adopting the mature technology of combining prepreg laying and autoclave curing, the product performance is stable, the production cost is low, and the production efficiency is high. The manufacturing process is easy to implement.

The invention discloses an exposure method and exposure equipment, and relates to the technical field of semiconductors, the exposure method comprises the following steps: arranging photomasks on two sides of a base material, and attaching the photomasks on two sides to the base material to form a closed area; the closed area is vacuumized, so that the vacuum degree meets the requirement of exposure treatment; performing trial exposure on the base material to obtain a trial exposure pattern; detecting position deviation data of the trial exposure pattern, and calculating an adjustment parameter B and an adjustment parameter F of the base material; adjusting the base material according to the adjusting parameters, and continuously exposing the base material; the exposure method is executed through exposure equipment, the exposure equipment comprises a feeding device used for conveying a base material, the feeding device adjusts the balance of the base material in the width direction through a balance mechanism, the adjustment parameter B is a balance motor value of the balance mechanism, and the adjustment parameter F is a tension value applied to the base material by the feeding device. According to the exposure method provided by the invention, the quality and the yield of the FMM finished product are improved.

The invention relates to the technical field of thin film deposition, and discloses uniform-heating dielectric thin film deposition equipment which comprises a main body box, a rotating assembly is installed in the main body box, and a closed processing assembly is further installed in the main body box. Through direct cooperation of the processing pipeline and the sealing seat, a processing area in the main body box and the external environment can be rapidly isolated, external air and impurities are effectively prevented from entering and interfering the dielectric film deposition process, automatic linkage of the locking action and the processing pipeline vacuumizing process can be achieved through the cooperation structure of the locking assembly, the ejector rod, the piston and the connecting cover, and the working efficiency is improved. When a machining pipeline is vacuumized, the internal pressure of a connecting cover is synchronously reduced, a piston and an ejector rod are pulled to move upwards, a connecting rod is driven to move to the position below a clamping seat along an inclined moving groove of a fixing seat, then the connecting rod is driven to be clamped to the clamping seat through a vertical clamping groove, the operation efficiency is improved, and meanwhile it is guaranteed that locking action is synchronous with the machining environment requirement; and locking failure caused by manual misoperation is avoided.

The invention belongs to the technical field of fan detection, and provides a fan blade defect detection device and method, and the device comprises a pedestal, a composite mechanism, an adsorption structure, a supporting structure, and a processor. The composite mechanism comprises a detection module and a navigation positioning module; the adsorption structure is composed of a negative pressure cavity and a vacuum pump, and the vacuum pump vacuumizes the negative pressure cavity; the supporting structure is provided with a steering wheel and a bull eye wheel which are coplanar with the negative pressure cavity; and the processor is integrated on the base, electrically connected with all the parts and connected with the memory for storing related data. The vacuum pump drives the negative pressure adsorption device to serve as a carrying platform, noise is lower, adsorption force is higher, the device can be stably attached to the complex curved surface of the fan blade, reliable movement is achieved in the severe environment, and the limitation of manual inspection is broken through. The visual navigation module realizes accurate self-positioning and path planning, so that missing detection is avoided; the detection module simulates manual knocking to collect voiceprint signals, and early recognizes internal cracks of the blade through real-time comparison and analysis, so that the timeliness and accuracy of defect detection are greatly improved.