31results about How to "Avoid character change" patented technology

The invention discloses a packaging structure and a packaging method of a quasi-distributed fiber grating temperature sensor. The packaging structure comprises a quartz glass capillary packaging structure for a single fiber grating temperature sensor and a packaging structure of the quasi-distributed fiber grating temperature sensor by adopting triple metal cladding technology. The quartz glass capillary packaging structure for the single fiber grating temperature sensor has the advantages of temperature sensitivity and measuring range meeting the requirements of measurement of high-temperature oil wells, high repeatability, high temperature resistance, small volume, high measuring accuracy and the like. The method for packaging the triple metal cladding packaging structure for the quasi-distributed fiber grating temperature sensor formed by serially connecting a plurality of fiber gratings comprises primary stainless steel tube cladding, secondary aluminum alloy pipe cladding and tripe thick wall stainless steel tube cladding. The packaging structure has the advantages of simpleness, insensitivity to stress and ambient pressure change, and capability of meeting special requirements on fiber grating temperature sensor packaging in a severe environment, particularly high temperature (300 DEG C), high pressure (100MPa), acid, alkali and the like under oil and gas wells.

The invention provides a cooling device for the interference fit of a large-scale workpiece. The cooling device comprises a liquid nitrogen container and a cooling tank, wherein the liquid nitrogen in the liquid nitrogen container is transmitted to the cooling tank through a pipeline. The cooling device is characterized in that a liquid nitrogen vaporization device is arranged on the pipeline; a cooling medium in the cooling tank is low-temperature gas generated after the liquid nitrogen is vaporized; an installation table for placing a contained piece is arranged at the bottom of the cooling tank; and the liquid nitrogen level in the cooling tank is lower than the table surface of the installation table. The cooling device can be used for controllably cooling a special-shaped contained piece which has large size, complicated structure and asymmetrical shape, so that the dimension of the cooled contained piece is contracted to reach the assembly requirements; the property change of a bearing material caused by rapid temperature reduction can be effectively avoided, thereby avoiding the contained piece from being damaged; the cooling course is safe and reliable; and the maneuverability is strong. The cooling device has the advantages of low time consumption, high efficiency, good interference fit effect, low cost and safe operation and does not generate the conditions that the contained piece is locked and damaged.

This invention discloses one semiconductor process method by use of super low medium materials which uses chemical agent reaction to remove metal medium materials after each layer of semiconductor metal process and fills low medium materials and then grow hard mask medium materials as protection layer on the low medium materials to process next layer of metal wire for repeating process to realize metal connection without chemical mechanic polishing damage.

The invention discloses a photoresist air isolation system. The system comprises an air supply device; a plurality of pressure regulating devices comprising glue discharging pressure regulating devices and pressure maintaining devices, wherein each pressure regulating device comprises a pressure reducing valve and a throttling valve, the air supply device is sequentially communicated with the pressure reducing valve and the throttling valve, and the pressure reducing valves of the pressure regulating devices are different in working use pressure; a valve terminal provided with a plurality of first air inlets, wherein the first air inlets are communicated with the pressure regulating device; and a photoresist storage device provided with a second air inlet and a photoresist outlet, wherein the second air inlet is communicated with the valve terminal. According to the invention, the problem that the glue solution is in contact with air when the glue bottle is replaced or the glue solution is refilled is effectively solved.

The invention discloses a novel corrosion-resistant storage device for chemical raw materials. The novel corrosion-resistant storage device comprises an outer storage box, wherein the outer storage box is of a cylindrical structure, and a side door is rotatably hinged to the vertical side of the outer storage box; a containing rotary disc is arranged on the bottom side of the interior of the outerstorage box, and a plurality of universal balls are arranged on the bottom side of the containing rotary disc; a plurality of storage cylinders are annularly arranged on the top side of the containing rotary disc at equal intervals, and the tops of the storage cylinders are covered with top covers in a sealed mode; a hidden pull handle is arranged on one side of each storage cylinder, and a powerbox is fixedly connected to the middle of the bottom side of the outer storage box; a rotating motor is fixedly installed on the bottom side of the interior of the power box through bolts, and an output shaft of the rotating motor is fixedly connected with a connecting circular plate; and a linkage shaft is fixedly connected to the middle of the bottom side of the containing rotary disc. According to the novel corrosion-resistant storage device for the chemical raw materials, the storage effect is guaranteed, the use energy consumption is reduced, and the use requirements of people in production and life are met.

The invention discloses a low-cost titanium alloy anti-oxidation annealing method, and belongs to the technical field of titanium alloy heat treatment so as to solve the problem that an existing titanium alloy is prone to being oxidized in the annealing process. The titanium alloy anti-oxidation annealing method comprises the steps that a titanium alloy bar with a protective coating is placed into a tubular annealing furnace, the tubular annealing furnace is filled with argon, then the temperature of the tubular annealing furnace is set at an annealing temperature, and annealing is carried out. According to the low-cost titanium alloy anti-oxidation annealing method, firstly, epoxy polyhedral silsesquioxane is used for carrying out chemical modification on methyl phenyl organic silicon resin, then the organic silicon resin serves as a film-forming base material of a coating, the protective coating is formed on the surface of the titanium alloy bar, annealing is carried out in the tubular furnace under the argon atmosphere, dual protection of argon and the protective coating is formed, the problem of oxidation of the titanium alloy in the annealing process is avoided, the titanium alloy bar can be subjected to annealing treatment at a high temperature, and the annealing cost is low.

The invention relates to a membrane spinning device. The membrane spinning device is used for preparing polymer solution into a micro-nano material and comprises an air guide pipe, a high-pressure airflow generator, a spinning nozzle, a liquid supply device and a receiving device. The high-pressure airflow generator and the spinning nozzle are arranged at two ends of the air guide pipe respectively, the liquid supply device is connected with the spinning nozzle, and the receiving device is arranged on one side of the spinning nozzle. The spinning nozzle comprises a flared spinning cavity communicated with the air guide pipe, two ends of the spinning cavity are provided with an injection orifice and an air inlet, the injection orifice is communicated with the spinning cavity and faces the receiving device, and the diameter of the cross section of the injection orifice is smaller than that of the cross section of the air inlet. By adoption of the flared spinning cavity, airflow pressure is effectively increased, solution forms a stable liquid membrane in the spinning cavity, and high airflow velocity is achieved through low airflow pressure; by a negative-pressure box in a collection area, the problem of generation of a great quantity of instable micro-nano fibers difficult to collect under high-speed airflow action is effectively solved.

The present invention relates to a method for adding lutein esters into foods, belonging to food processing field. The method comprises the steps of adding sterile lutein esters into sterilized food base material of liquid state under aseptic condition. The present invention also relates to a method for producing a food added with lutein esters, which comprises the steps that bactericidal processing is performed for food base material of liquid state, and sterile lutein esters preparation is added into sterilized food base material of liquid state. In the present invention, the loss of lutein esters in food processing can be reduced, the loss of health function of lutein esters caused by oxidation can be prevented, and the amount of addition of lutein esters can be decreased.

The invention belongs to the technical field of scanning electron microscopes, particularly relates to a cryoelectron microscope sample transfer system and method and electronic equipment, and aims to solve the problem that a cryoelectron microscope sample changes in the transfer process. The system comprises a master control center, a transfer table base, a transfer device, a transmission rod, a moving device, a rotating device and a vacuum docking mechanism. The moving device comprises a first power device, a first transmission assembly, a transmission lead screw, a transfer rod sliding rail, a moving sliding block and a limiting sliding block. The rotating device comprises a second power device and a second transmission assembly; a moving assembly composed of a moving sliding block, a limiting sliding block and a transmission rod moves to the transmission rod to be in butt joint with the transfer device, and the limiting sliding block and a second transmission assembly are locked; a rotating assembly composed of a transmission rod, a limiting sliding block and a second transmission assembly rotates to the transmission rod and is locked with the transfer device; the transfer device and the moving assembly move to the vacuum docking mechanism; the structure and the property of the sample are effectively prevented from being changed in the transfer process.

The invention relates to the technical field of amorphous alloy connection, in particular to a manufacturing method of a bulk amorphous alloy and the bulk amorphous alloy. The manufacturing method comprises the following steps that S1, a first amorphous alloy to be welded and a second amorphous alloy to be welded are adopted, respectively carrying out surface treatment on the interfaces to be connected of the first amorphous alloy and the second amorphous alloy; S2, the first amorphous alloy and the second amorphous alloy are spliced together, and the connecting interface of the first amorphous alloy and the second amorphous alloy is filled with amorphous alloy powder; S3, in the atmosphere environment, the temperature of the connecting interface of the first amorphous alloy and the temperature of the connecting interface of the second amorphous alloy are controlled, and the first amorphous alloy and the second amorphous alloy are mutually pressed; and S4, the steps S1 to S3 are repeated until the bulk amorphous alloy plate with the target thickness is obtained, the amorphous connection quality can be improved through the manufacturing method of the bulk amorphous alloy, and the manufacturing method has the advantage of being easy to operate.

The invention provides a gypsum calcinator which comprises a feeding device (1), a bottom blowing device (2) and an air evening device (3) which are arranged from top to bottom in sequence, wherein the feeding device (1) comprises a first dispersing cap (11) for primarily dispersing a gypsum powder material conveyed into the shell (4) and a plurality of falling through holes (12) which are uniformly distributed in the first dispersing cap (11); and the bottom blowing device (2) comprises a secondary dispersing cap (21) for secondarily dispersing the primarily dispersed gypsum powder material,an air allocation tube (22), an air evening plate (23) and a plurality of vent holes (24) which are uniformly distributed in the air allocation tube (22) between the secondary dispersing cap (21) andthe secondary dispersing cap (21). By adopting the device, gypsum powder conveyed into the gypsum calcinator is dispersed into a fluidization state, so that the consequence that the properties of a powder material are affected by partial over-calcination in the gypsum calcinator can be avoided.

The invention discloses an intelligent suitcase and a monitoring method and system for articles therein. The intelligent suitcase includes a smart camera and a CPU unit, wherein the smart camera is used for acquiring the pictures and names of articles in the smart suitcase, and the CPU unit is used for sending the smart camera acquired pictures and names of the articles to a mobile terminal. The intelligent suitcase provided by the invention solves the problems that the confirmation process of articles in existing suitcases is complex and the state of the articles cannot be effectively monitored, and at the same time can promptly remind the user changed articles.

The invention provides centrifugal sample separation equipment for agricultural product detection, and a centrifugal sample separation method thereof, and relates to the field of centrifugal detection equipment. The centrifugal sample separation equipment comprises a machine body and a box body, the box body is fixedly connected to the top end of the machine body, and a centrifugal frame is arranged in the box body; the centrifugal frame comprises lantern rings, a bearing sleeve, an internal thread sleeve, a shaft rod and connecting handles, the shaft rod is fixedly connected to a driving shaft extending out of the machine body, the connecting handles are symmetrically fixed to the side wall of the shaft rod, and the other ends of the connecting handles are fixedly connected with the internal thread sleeve; the bearing sleeve is arranged above the shaft rod, and the top end of the shaft rod is sleeved with the bearing sleeve; the lantern rings are symmetrically fixed on the side wall of the bearing sleeve; and a material processing device is arranged at the centrifugal frame and comprises a pumping and discharging pipe, a squeezing assembly, a juicing cup and a collecting assembly. The processing mode can effectively avoid the problems that after fruits in the atmospheric environment are sectioned, due to rapid oxidation, the juice property changes, and impurities are mixed into the juice.

The invention discloses a glass bonding agent, standard hardness blocks and a manufacturing method thereof and relates to the technical field of detection and calibration of grinding wheels. The glass bonding agent comprises 10-40 parts of glass powder, 1-20 parts of borax and 1-3 parts of zinc oxide. According to the glass bonding agent, the stable bonding force can be provided; the change of the property of the bonding agent caused by unstable components of the conventional ceramic bonding agents such as clay and feldspar can be avoided; the standard hardness blocks are manufactured by using the glass bonding agent through a liquid stirring process; the standard hardness blocks are uniform in distribution of grinding materials; the same batch of hardness block products are small in hardness uniformity difference; and the accuracy of the whole detection range of a sand-blasting hardness machine can be accurately calibrated.

The invention discloses a low-cost titanium alloy anti-oxidation annealing method, belongs to the technical field of titanium alloy heat treatment, and aims to solve the problem that the existing titanium alloy is easily oxidized in the annealing process. And the titanium alloy anti-oxidation annealing method is: put the titanium alloy rod with protective coating in the tubular annealing furnace, then fill the tubular annealing furnace with argon, then set the temperature of the tubular annealing furnace at Annealing temperature, annealing is carried out. And the present invention first utilizes epoxy-based polyhedral silsesquioxane to chemically modify methylphenyl silicone resin, and then uses the silicone resin as the film-forming substrate of the coating to form a layer on the surface of the titanium alloy rod. The protective coating is then annealed in a tube furnace under an argon atmosphere to form a double protection of argon and protective coating, which not only avoids the oxidation of titanium alloys during annealing, but also allows titanium alloy rods to be processed at high temperatures. Annealing treatment, and the annealing cost is low.

The invention relates to a combined determination method for calcium and chlorine contents in a solid sintering aid, which comprises the following steps: 1, sampling and preparing a sample, rapidly collecting a sintering aid sample by using a sampler, and carrying out sealed storage, 2, weighing the sample, rapidly weighing about 1g of the sample by using an electronic balance, and 3, decomposing the sample, heating by a proper amount of distilled water at low temperature to completely dissolve the sample, cooling and fixing the volume; 4, performing calcium content detection and partial sample solution separation; and 5, performing chlorine determination: taking part of the sample solution, titrating the solution by using a silver nitrate standard, titrating by using a potentiometric titrator, indicating an end point through potential mutation, and carrying out blank determination at the same time; 6, calculating a result. The calcium content in the sintering aid is determined by adopting an EDTA complexometric titration method, the chlorine content in the sintering aid is determined by adopting an automatic potentiometric titration method. The technical problem of rapid detection of the content of calcium and chlorine in the existing sintering aid for sintering production is mainly solved.

Provided are a portable seawater nutritive salt fully automatic analysis device and a use method thereof, wherein the device comprises a main shell body and an automatic sample injection and colorimetric analysis module arranged in the main shell body, and the outer wall of the main shell body is provided with a reagent placing groove, a waste liquid bag hook, a control panel, a power supply plug,a communication connector and a power supply control switch; the control panel, the reagent placing groove, the power supply plug and the communication connector are connected with the automatic sample injection and colorimetric analysis module; the power supply control switch is connected with the power supply plug; the automatic sample injection and colorimetric analysis module is provided witha second sample injection pipeline and a waste liquid discharge pipeline. Based on a modular design concept, the device has simple and compact structure, is flexible and convenient to use, can avoidsample nature change and measurement errors due to storage, transportation, artificial access and the like, also can greatly improve the working efficiency of detection and analysis, and is suitable for fully automatic measurement of nutritive salt original samples in online shipborne occasions, fixed platforms, laboratories and various occasions and different demand and conditions.

The invention discloses a mass spectrometry combined device for directly analyzing aerosol on line, and relates to the technical field of mass spectrum combined devices. The mass spectrum combined device comprises a main body, wherein the main body comprises an inner-layer pipeline and an outer-layer pipeline which are coaxially arranged; a partition plate is arranged on the outer-layer pipeline and divides the outer-layer pipeline into two parts which are not communicated with each other; an aerosol inlet is formed in the side wall of one end of the outer-layer pipeline, a solvent inlet is formed in the position, which is between the aerosol inlet and the partition plate, on the side wall of the outer-layer pipeline, a carrier gas inlet is formed in the side wall of the other end of the outer-layer pipeline, and the carrier gas inlet and the solvent inlet are formed in the two sides of the partition plate; and the aerosol inlet and the solvent inlet are both communicated with the inner-layer pipeline. Aerosol in the atmosphere is enabled to be mixed with the solvent by controlling the flow rate of the carrier gas, and the mixture is jetted into an electrospray ionization mass spectrometer through the inner-layer pipeline, so that direct online analysis on the aerosol by utilizing the existing electrospray ionization mass spectrometer is realized.

An overlay of a sliding component, such as a sliding component for an engine, may provide a bearing surface against a steel journal, for example. The overlay may include intermetallic particles disposed in a matrix including tin (Sn). The matrix may be formed by electroplating. Examples of intermetallic particles include, but are not limited to, aluminides and nickel aluminides. The matrix may include an electroplated matrix of tin and / or a tin alloy.

The invention relates to a membrane spinning device. The membrane spinning device is used for preparing polymer solution into a micro-nano material and comprises an air guide pipe, a high-pressure airflow generator, a spinning nozzle, a liquid supply device and a receiving device. The high-pressure airflow generator and the spinning nozzle are arranged at two ends of the air guide pipe respectively, the liquid supply device is connected with the spinning nozzle, and the receiving device is arranged on one side of the spinning nozzle. The spinning nozzle comprises a flared spinning cavity communicated with the air guide pipe, two ends of the spinning cavity are provided with an injection orifice and an air inlet, the injection orifice is communicated with the spinning cavity and faces the receiving device, and the diameter of the cross section of the injection orifice is smaller than that of the cross section of the air inlet. By adoption of the flared spinning cavity, airflow pressure is effectively increased, solution forms a stable liquid membrane in the spinning cavity, and high airflow velocity is achieved through low airflow pressure; by a negative-pressure box in a collection area, the problem of generation of a great quantity of instable micro-nano fibers difficult to collect under high-speed airflow action is effectively solved.

The invention relates to the technical field of chemical raw material transportation, and discloses a liquid chemical raw material transportation wave absorbing device. The liquid chemical raw material transportation wave absorbing device comprises a raw material tank body and a wave absorbing floating plate, a positioning seat is fixedly connected to the inner bottom wall of the raw material tankbody, a supporting main shaft is movably connected into the positioning seat, and uniformly distributed connecting supporting shafts are movably connected to the outer side of the supporting main shaft, the wave absorbing floating plate is fixedly connected to the outer sides of the connecting supporting shafts, a long sliding groove is formed in the wave absorbing floating plate, a sliding blockis movably connected into the long sliding groove, and a dielectric plate is fixedly connected into the sliding block. According to the liquid chemical raw material transportation wave absorbing device, a wave receiving plate forms an inclined wave absorbing structure in the transportation process, after a liquid raw material makes contact with the raw material tank body, waves are formed to makecontact with the end face of the wave receiving plate, enter a containing cavity through wave absorbing holes, then make contact with a stress corrugated plate and leak out from the containing cavity, and stress waves formed by raw material oscillation are eliminated; and instability and property change caused by vibration in the transportation process are prevented.

The invention discloses a vitreous bond, a standard hardness block and a manufacturing method thereof, and relates to the technical field of grinding wheel detection and calibration. The vitreous bonding agent provided by the invention consists of 10-40 parts of glass powder, 1-20 parts of borax and 1-3 parts of zinc oxide. The vitreous bonding agent provided by the invention can provide stable bonding force, avoiding the change of the properties of the bonding agent due to unstable components of traditional vitrified bonding agents such as clay and feldspar. Standard hardness blocks were manufactured by using the above-mentioned vitreous bond and using a liquid stirring process. The abrasive material of the standard hardness block provided by the invention is evenly distributed, and the hardness uniformity difference of the same batch of hardness block products is small, which can be used to accurately calibrate the accuracy of the sandblasting hardness machine within the entire detection range.

The invention relates to the technical field of degradable film granulation, and discloses a granulation device for a biodegradable film. The granulation device comprises a rack, wherein the upper surface of the rack is fixedly connected with a water tank; the inner wall of one side of the water tank is fixedly connected with an inclined plate; a water outlet is formed in the outer surface of oneside of the water tank; one side of the water outlet is fixedly connected with a first main water pipe; a mounting hole is formed in one side of the first main water pipe; one side of the mounting hole is fixedly connected with a water distribution pipe; and the outer wall of the other side of the water tank is fixedly connected with a water pump. The granulation device can cool raw materials which are just extruded, so that the raw materials can be fully formed, and the cut raw materials are prevented from being adhered to affect subsequent use; moreover, energy generated by a device body canbe fully utilized, so that energy consumption and using cost are reduced; meanwhile, temperature control can be carried out according to the fact that the materials enter different positions, so thatthe melting effect of the raw materials is better; and a receiving hopper can be knocked, so that the workload of operators is reduced.

The invention belongs to the technical field of scanning electron microscopy, and specifically relates to a cryo-electron microscope sample transfer system, method, and electronic equipment, aiming to solve the problem that the cryo-electron microscope sample changes during the transfer process; the system includes a master control center, a transfer table base, a transfer device, transmission rod, moving device, rotating device and vacuum docking mechanism; The second power device and the second transmission assembly; the moving assembly composed of the moving slider, the limit slider and the transmission rod moves to the transmission rod and connects with the transfer device, and the limit slider is locked with the second transmission assembly; the transmission rod, the limit slider The rotary assembly composed of the position slider and the second transmission assembly is rotated until the transmission rod is locked with the transfer device; the transfer device and the moving assembly are moved to the vacuum docking mechanism; the invention effectively prevents the structure and properties of the sample from changing during the transfer process.

The invention discloses a multifunctional detection device, which comprises an object placement table. The upper end of the object placement table is provided with a box body; the left part of the boxbody is provided with a quality detection area; the bottom part in the quality detection area is provided with a test panel; the left side of the upper end of the test panel is provided with a waterbody test device; the right side of the water body test device is provided with a sampling dish; the right side of the sampling dish is provided with a solid detection device; and a burning area is arranged below the right part of the box body. Indexes such as an object water content and a pH value can be quickly detected, the detection result is transmitted to an upper computer, the detection result is displayed through a display, and the device can thus has functions of detecting the water quality, the soil quality and the air quality.

The invention discloses cleaning and maintaining equipment for multi-specification harmonica playing holes. The cleaning and maintaining equipment comprises a device body (11) and a fixing block (45). Sixteen playing hole cleaning mechanisms (19) are arranged on the upper side of the device body (11) in total. The capacity of cleaning and maintaining various specifications of single-tone harmonica bodies can be achieved. After the harmonica is mounted on the equipment, the playing holes are aligned with cleaning holes, then the harmonica is slightly pressed, and at the moment, the equipment can detect the intonation of all the cleaning holes. Due to the properties of the single-tone harmonica bodies, the air blowing sound and the air suction sound are different, and the equipment can detect the sounds of the single-tone harmonica bodies. If incorrect sounds exist, the equipment can automatically prompt a user, the equipment starts a cleaning device, and after completion, clean normal-temperature air is used for air drying of the harmonica bodies, so that the situation that the properties of reeds are changed due to water residues is prevented. The playing holes of various specifications of single-tone harmonica bodies can be effectively cleaned, using is convenient, and long-time using of the harmonica is facilitated.

The invention provides an air disinfection device in a tunnel construction process, and relates to the field of air treatment in tunnels, the air disinfection device comprises a driving part and a box body, the driving part and the box body are vertically distributed, the driving part is a driving structure for driving the box body to move, and an air disinfection assembly is arranged in the box body; knocking assemblies are arranged between the left side and the right side of the air disinfection assembly and the inner wall of the box body, each knocking assembly comprises a knocking piece and an adapting piece, the adapting pieces are installed at the cover plate, the knocking pieces are rotationally connected with the adapting pieces, the filter plates are knocked through the knocking assemblies, dust and particulate matter attached to the filter plates are subjected to vibration treatment, and the filter plates are kept in a relatively clean state; and the long-acting filtering performance of the filter plate is ensured.