62results about How to "Uniform adsorption" patented technology

The utility model discloses magnetic powder spraying equipment for magnetic powder detection, which comprises a magnetic powder spraying table, a magnetic powder uniform dispersion adjusting mechanism is arranged on the front side of the magnetic powder spraying table, and the magnetic powder uniform dispersion adjusting mechanism comprises an outer support arm, a rotating lead screw, an adjusting sliding block, a sliding arm, a limiting plate and a clamping arm. In the process of spraying magnetic powder on a metal material, a motor controls a rotating lead screw to rotate, after the rotating lead screw rotates, two adjusting sliding blocks in threaded connection with the outer side of the rotating lead screw move on the surface of the magnetic powder spraying table through sliding arms and clamping arms, and in the moving process of the clamping arms, the magnetic powder is sprayed on the surface of the magnetic powder spraying table. The metal material located between the two clamping arms can pass to the lower side of the powder outlet spray head at a constant speed, when different positions of the metal material moving at the constant speed pass through the powder outlet spray head, magnetic powder can be evenly adsorbed to the surface of the metal material, and therefore the problem that at present, the magnetic powder is sprayed to different positions of the metal material and distributed unevenly is solved.

The invention provides petroleum associated gas treatment equipment and a petroleum associated gas treatment process. The petroleum associated gas treatment equipment comprises a dehydration device, a filtering device and a separation device. And the dehydration device is used for carrying out preliminary dehydration treatment on the petroleum associated gas. The filtering device comprises a transmission mechanism and a rotary propelling mechanism. One end of the rotary propelling mechanism is fixedly connected with the transmission mechanism, and the other end is movably connected into the filter cartridge. The transmission mechanism is used for driving the rotary propelling mechanism to move front and back and rotate. The separation device is used for carrying out oil-gas separation on the petroleum associated gas. The associated gas can be subjected to efficient dehydration treatment by adopting the dehydration device, water-vapor separation in the associated gas can be improved, and meanwhile, automatic rotation of the filter disc can be achieved through the arranged filter device, so that the filter disc is in uniform contact with impurities in the associated gas, and the filter effect is improved; the filter disc is self-adaptively cleaned in an automatic impact manner, so that the service life of the filter disc can be prolonged.

The utility model discloses a handheld wall painting device, relates to the field of decoration engineering of buildings, and solves the problem of how to uniformly distribute paint on a roller surface. According to the technical scheme, the handheld wall painting device comprises a box body, the box body is provided with an open paint cavity, a first supporting rod and a second supporting rod are fixedly installed on the box body and are parallel to each other, the first supporting rod is located outside the paint cavity, and the second supporting rod is located inside the paint cavity. A first rotating body is arranged on the outer side of the first supporting rod, a second rotating body is arranged on the outer side of the second supporting rod, the first rotating body and the second rotating body are connected through a synchronous belt, the synchronous belt is annular, and brushing cloth is fixed to the outer surface of the synchronous belt. Paint is filled in the paint cavity, a part of the synchronous belt and the brushing cloth can be immersed in the paint, and after the synchronous belt rotates, the whole brushing cloth can evenly adsorb the paint. The paint coating device is used for uniformly coating the paint on the wall surface.

A feeding structure for folding umbrella fabric includes a base and a suction cup. The suction cup includes a rotating end and an adsorption end. The rotating end is connected to a servo motor. Several adsorption ports are formed on the lower annular surface of the adsorption end. These ports are connected to an external vacuum extraction device through connecting holes inside the suction cup. The base is equipped with a feeding rod and a folding umbrella fabric mechanism. The feeding rod is vertically adjustable on the base. The folding umbrella fabric mechanism includes an embossing surface. The lower annular surface of the adsorption end is higher than the embossing surface. A negative pressure sensor connected to the connecting holes is provided on the base. The servo motor controls the rotation of the suction cup. When the suction cup rotates above the feeding rod, the feeding rod lifts the umbrella fabric to below the adsorption end. The suction cup then adsorbs the umbrella fabric through the adsorption ports. The servo motor rotates the suction cup, causing the adsorption end to rotate onto the embossing surface of the folding umbrella fabric mechanism. This invention provides uniform adsorption of the umbrella fabric, ensuring that the umbrella fabric does not pull up lower layers of umbrella fabric during the adsorption process.

The invention discloses a dust collecting and treating device for dry-type purification of wollastonite, and belongs to the technical field of dust treatment.The dust collecting and treating device for dry-type purification of wollastonite comprises a treating box, a collecting pipe is arranged at the bottom of the treating box, a closing assembly is arranged at the bottom of the collecting pipe, and an air inlet pipe is arranged on the treating box; an air guide pipe is rotationally connected into the treatment box, one end of the air guide pipe is rotationally connected with the air inlet pipe, a plurality of air outlets are longitudinally distributed in the air guide pipe, an exhaust pipe is rotationally connected into the treatment box, a rotating assembly is arranged on the treatment box, a plurality of filtering holes are circumferentially distributed in the exhaust pipe, a dust removal assembly is arranged on the exhaust pipe, and an air guide plate is arranged in the treatment box; the bottom of the inner side of the treatment box is provided with a cleaning assembly, the collecting pipe is internally provided with a flattening assembly located between the cleaning assembly and the closing assembly, and the device has the advantages of wind direction adjustment, efficient and uniform dust removal, automatic cleaning, centralized collection, efficient flattening, simple structure, convenient operation, simplicity, convenience and practicability.

The utility model discloses a marble cutting gantry machine tool relates to marble cutting technical field, including machine table and cutting mechanism, its characterized in that: the machine table is provided with the gantry mechanism that is linked with cutting mechanism, the gantry mechanism drives cutting mechanism to move laterally, longitudinally and vertically, the inboard fixed connection of machine table has the support plate of linear array distribution, the fixed connection of machine table has the adsorption mechanism and adjusting mechanism below the support plate, the adsorption mechanism includes adsorption tray and air pump, the air pump fixed mounting is on the machine table, and the adsorption tray is clamped among a plurality of support plates. The utility model discloses through the air pump suction in adsorption hole forms the negative pressure, and the sponge layer is pressed after closely fitting marble bottom surface, fills up the uneven surface and increases the friction, and a plurality of adsorption boxes disperse adsorption force, and even fixed marble, avoids the stress concentration in local, carries out adsorption to marble to prevent marble from sliding.

The invention relates to the technical field of waste gas purification, in particular to a self-cleaning chemical filter which comprises a tank body and a filter screen arranged in the tank body, a sleeve shell with an opening in the top is arranged in the tank body, an activated carbon filter element used for treating waste gas is arranged in the sleeve shell, and the self-cleaning chemical filter further comprises a transmission rod arranged in the center of the filter screen. The filter screen is of a conical structure, an inclined scraping plate attached to the surface of the filter screen is fixedly connected to the interior of the tank body, and a driving assembly for driving the filter screen to rotate is arranged on the outer surface of the transmission rod; the cleaning roller is rotationally connected to the interior of the sleeve shell, located on one side of the activated carbon filter element and used for cleaning impurities on the surface of the activated carbon filter element, and cleaning assemblies matched with the driving assemblies to drive the activated carbon filter element to rotate are arranged at the two ends of the activated carbon filter element; the cleaning roller is in contact with the activated carbon filter element, continuous cleaning of the activated carbon filter element in the rotating process is achieved through meshing of the transmission gear and the pinion, and impurities and blockages on the surface of the filter element are effectively removed.

The invention belongs to the technical field of pet supplies, and particularly relates to a remote-control feeding and constant-temperature integrated pet house which comprises a constant-temperature bin, a feeding bin and an electric control box. An air conditioning device is fixedly mounted at the inner top of the constant-temperature bin, the air conditioning device comprises a refrigeration module, a heating module and a temperature sensor, the temperature sensor is used for monitoring the temperature in the constant-temperature bin in real time, and a monitoring device used for remotely monitoring the state of a pet is fixedly connected into the constant-temperature bin. According to the pet house, the temperature in the house can be automatically adjusted according to the set temperature range through the arranged constant-temperature bin, a dwelling environment like spring in four seasons is provided for pets, the pets are prevented from getting sick due to uncomfortable temperature, meanwhile, through the arranged electric control box, a user can remotely know the temperature condition of the pet house through mobile phone software at any time no matter where the user is located, and the user experience is improved. The temperature in the constant-temperature bin is adjusted according to actual requirements, the pet food feeder can be controlled to feed food automatically, and it is ensured that the pet can be cared properly when an owner goes out.

The present invention discloses a compound material production tail gas treatment device, comprising a tower body, wherein an inner shaft is coaxially arranged in the tower body, a first spiral sheet and a second spiral sheet are arranged outside the inner shaft, the first spiral sheet and the second spiral sheet are arranged up and down and connected together, the interior of the second spiral sheet is hollow, and air outlet holes are evenly distributed on the upper surface, an air outlet groove is arranged near the lower position of the outer wall of the inner shaft, and the air outlet groove corresponds to the internal space of the second spiral sheet, a lower baffle is arranged at the bottom of the inner shaft, and an air inlet groove is arranged on the outer wall of the inner shaft below the lower baffle; the device can allow activated carbon particles to adsorb particulate matter more evenly, thereby extending the maintenance cycle.

The utility model discloses a kind of soft magnetic material cutting chip recovery devices, belong to soft magnetic material processing technical field.This kind of soft magnetic material cutting chip recovery device, including drive assembly and separation component, separation component includes first half cylinder, the bottom of first half cylinder is equipped with second half cylinder, the inner wall of first half cylinder and second half cylinder is relatively installed with first half magnetic ring, the inner wall of first half cylinder and second half cylinder in located first half magnetic ring's side is relatively installed with second half magnetic ring, the inner wall of first half cylinder and second half cylinder in located second half magnetic ring's side is relatively installed with third half magnetic ring, the magnetism of first half magnetic ring is less than the magnetism of second half magnetic ring, the magnetism of second half magnetic ring is less than the magnetism of third half magnetic ring, the both ends of first half cylinder and second half cylinder are installed with opposite flange, one end of first half cylinder and second half cylinder is arranged feed inlet, first half cylinder and second half cylinder are arranged with suction pump in the end away from feed inlet.

The invention discloses a manufacturing method of a carbon fiber composite material with three-dimensional textures, which comprises the following steps: providing a carbon fiber fabric, and coating at least one side of the carbon fiber fabric with an adhesive dispersion liquid; putting the carbon fiber fabric treated by the adhesive dispersion liquid into a drying oven at 35-45 DEG C, and heating for 5-50 minutes; putting the heated carbon fiber fabric into a curing oven at the temperature of 85-95 DEG C, and heating and curing for 25-35 minutes; paving a film on at least one side of the cured carbon fiber fabric, putting the cured carbon fiber fabric into a vacuum adsorption table, closing the mold, and then starting a vacuum pump to vacuumize the interior of a mold cavity; the press machine provided with the silicone rubber plate is heated to 130 DEG C to 150 DEG C; and putting the vacuumized carbon fiber fabric into a press machine, and pressing for 7-15 minutes by applying a pressure of 48-172 kPa, so as to prepare the carbon fiber composite material with textures.

The application provides a kind of bio-based high-strength, heat-resistant and easy-to-dye polylactic acid composite fiber and its preparation method, which adds rigid furan polyester and flexible furan polyester blend in polylactic acid matrix, and introduces compatibilizer, realizes in-situ reaction between multi-functionality epoxy groups on the molecular chain of compatibilizer and the end groups of PLA and furan polyester, improves the interfacial compatibility between furan polyester dispersed phase and PLA continuous phase, improves the interfacial adhesion, and finally induces the formation of stable core-shell structure fiber. The PLA composite fiber prepared by the preparation method of the application has excellent mechanical strength and heat resistance. In addition, the preparation method of the application has simple process route, and the addition amount of compatibilizer is very low. It efficiently realizes structure remodeling, and at the same time, it has the original strength of polylactic acid fiber, and has wide application prospect in the fields of medical textiles, orthopedic fixation braided belt and industrial high-performance fiber.

The invention relates to an environment-friendly magnesium-calcium ramming material and a preparation method thereof. The environment-friendly magnesium-calcium ramming material comprises the following components in parts by weight: 60-80 parts of waste magnesium-calcium brick particles; 20-30 parts of waste magnesite brick particles; 30 to 50 parts of magnesium calcium sand; 60-80 parts of a binding agent; 15-20 parts of tung oil; 10 to 15 parts of alumina; 10 to 15 parts of bentonite; and 8-12 parts of silica powder. The preparation method comprises the following steps: 1) weighing and proportioning according to the proportion, adding the waste magnesia-calcium brick particles, the waste magnesia brick particles and the magnesia-calcium sand into a stirrer, and uniformly stirring; 2) adding alumina, silica powder and a binding agent into the stirrer, and continuously stirring uniformly; (3) adding bentonite into the mixture obtained in the step (2), and uniformly stirring; and 4) finally adding the tung oil into the stirrer, and continuously stirring uniformly. The ramming material is prepared from waste refractory materials, so that the problem of environmental pollution caused by accumulation of the waste refractory materials is solved; the bentonite and the tung oil are adopted to prepare the ramming material, the tung oil is adsorbed on the bentonite, a composite waterproof agent is formed, and the hydration phenomenon of the ramming material can be improved.

The utility model discloses a slaked lime uniform input device for hazardous waste incineration, which comprises a conveying component fixedly mounted between two smoke exhaust pipes and used for conveying slaked lime; the conveying assembly comprises a plurality of input nozzles, a mounting plate, a material conveying pipe, a fan and a feeding pipe, the feeding pipe is fixedly connected with the material conveying pipe, the fan is fixedly connected with the material conveying pipe so that the fan can input high-pressure airflow into the material conveying pipe, and the material conveying pipe is fixedly connected with the mounting plate. The connecting pipe is arranged between the two smoke exhaust pipes, the mounting plate of the arc-shaped structure is arranged in the middle of the connecting pipe so that smoke can be gathered through the mounting plate of the arc-shaped structure, meanwhile, the multiple input nozzles are fixedly installed at the bottom of the mounting plate of the arc-shaped structure, and slaked lime is evenly input into the smoke exhaust pipes through the multiple input nozzles; the flue gas is uniformly adsorbed on the slaked lime, and the incineration and purification quality of the hazardous waste is improved.

This utility model discloses a boxing bag technology, specifically a hanging inflatable boxing bag, including an inner air bladder forming a closed first air chamber with an inflation valve at the top. An outer bag body is fitted over the inner air bladder, forming a second closed chamber between the inner air bladder and the outer bag body. The top of the outer bag body has a hanging interface. A counterweight absorbent layer fills the second closed chamber. The cushioning structure includes multiple sets of longitudinal reinforcing ribs on the outside of the outer bag body and annular shock-absorbing bands connected to the longitudinal reinforcing ribs. Through the double-layer structure, the inner air-filled layer and the outer counterweight absorbent layer allow water to be absorbed evenly, preventing swaying during punches. The counterweight absorbent layer can simulate muscle rebound, enhancing the training experience. At the same time, the boxing bag is small in size when not filled with water or inflated, making it easy to carry.

The invention relates to the technical field of black color paste for spandex and a preparation method thereof, and particularly to a black color paste for spandex and a preparation method thereof. The black color paste comprises the following components: 21-25 parts by weight of modified medium-high pigment channel carbon black, 48-55 parts by weight of N,N-dimethylacetamide, 12-24 parts by weight of a dispersing stabilizer and 5-12 parts by weight of a polyoxyethylene ether wetting agent; wherein the modified medium-high pigment channel carbon black is obtained by modifying the medium-high pigment channel carbon black with 3-glycidyloxypropyltrimethoxysilane and dopamine at a mass ratio of 1:2-5; a black color paste for spandex is prepared by using the modified medium-high pigment channel carbon black, 3-glycidyloxypropyltrimethoxysilane is used to increase the active sites on the surface of the medium-high pigment channel carbon black, dopamine is self-polymerized on the surface of the medium-high pigment channel carbon black to form a uniform polar film, thereby improving the dispersibility and stability of the medium-high pigment channel carbon black.

The utility model relates to the related technical field of traditional Chinese medicine nursing, and discloses an auricular point pasting and pressing device for traditional Chinese medicine obstetrics and gynecology nursing, which is characterized in that the front end of a cylinder is connected with an extension rod, the front end of the extension rod is fixedly connected with a fixing block, the front surface of the fixing block is fixedly provided with a ball body, and the surface of the ball body is rotatably provided with a sucker base; suckers are welded to the periphery of the upper surface of the sucker base, a mounting box is fixedly mounted on the left side of the upper surface of the barrel, a containing groove is formed in the inner side of the mounting box, and a rotating shaft is fixedly mounted on the upper surface of the left side of the mounting box. The air bag is arranged in the cylinder body and matched with the extrusion spring for pressing and adsorption, so that the position of the auricular point can be accurately positioned, soft adsorption can be adopted to ensure that pressing force is uniformly applied, it is ensured that the massage or stimulation effect can be uniformly distributed around the whole auricular point, and therefore the treatment effect is improved.

The invention discloses a residual oil hydrotreating catalyst and a preparation method thereof, and belongs to the technical field of catalytic materials. The preparation method comprises the following steps: S1, mixing dolomite, cerous carbonate, a zirconium oxide precursor and a silicon dioxide precursor, drying and calcining to obtain a composite carrier, and performing in-situ pore forming by utilizing gas generated by decomposition of the dolomite and the cerous carbonate to form a mesoporous structure; s2, dipping the composite carrier in a modification liquid containing chitosan and mannuronic acid, and constructing a cross-linked network coating on the surface of the composite carrier through a Schiff base reaction to obtain a modified carrier; s3, dipping the modified carrier in a precursor solution containing a nickel source, a molybdenum source and a sulfur source, and performing adsorption, drying and roasting to obtain the catalyst. Through the synergistic effect of pore structure regulation and surface modification, the carrier with high porosity and suitable pore distribution is obtained, and meanwhile, high dispersion and stable loading of active metal components are realized. The catalyst shows excellent hydrodesulfurization, denitrification and demetallization performance in residual oil hydrotreatment.

The invention belongs to the technical field of polishing machines, and particularly discloses a curved optical glass polishing machine which comprises a cabinet, a splash-proof bin is arranged above the cabinet, a profiling suction and abutting mechanism is arranged in the splash-proof bin, and a PLC is fixedly installed on the outer wall of one side of the cabinet. The rear end of the cabinet is connected with a polishing mechanism through an arranged storage lifting mechanism, a suction mechanism is arranged on one side of the interior of the splash-proof bin in a communicating mode, the profiling suction abutting mechanism further comprises a profiling disc table, the outer edge of the profiling disc table is bent downwards, and a wear-resisting flexible particle pad is machined on the outer surface of the profiling disc table. According to the curved glass polishing device, dynamic balance fixing can be achieved, the problems of displacement, scratches and damage caused by unstable fixing in the curved glass polishing process are solved, and high-precision, self-adaptive and full-automatic polishing is achieved.

The utility model discloses a kind of high-frequency ion mist fresh-keeping treatment devices of picked apricot, including medicine supply mechanism, stirring mechanism, circulation mechanism, ion mist processing mechanism, transmission mechanism, liquid receiving mechanism and air drying mechanism, the liquid outlet of medicine supply mechanism and circulation mechanism is connected with the liquid inlet of stirring mechanism respectively, the liquid outlet of stirring mechanism is connected with the liquid inlet end of ion mist processing mechanism, ion mist processing mechanism and air drying mechanism are sequentially arranged in the outside of transmission mechanism along the conveying direction of transmission mechanism, and the discharge port of ion mist processing mechanism is connected with air drying mechanism by isolation curtain, the bottom of transmission mechanism is equipped with liquid receiving mechanism, and the liquid inlet of liquid receiving mechanism is connected with circulation mechanism. The utility model utilizes high-frequency ion mist generator to evenly cover preservative on apricot surface, and then recycles excessive preservative through air drying system, to realize efficient fresh-keeping effect.

The laser positioning cutting device for the automobile lamp lens comprises a base, and two transverse sliding rails are oppositely and fixedly connected to the two sides of the base; a longitudinal guide rail is connected between the two transverse slide rails in a sliding manner; the top of the longitudinal guide rail is slidably connected with a laser cutting machine, and the longitudinal guide rail and the laser cutting machine are both driven by a linear module. A negative-pressure channel is formed in the base, and one end of the negative-pressure channel extends out of the base; limiting mechanisms are inserted into the positioning insertion holes, each limiting mechanism comprises a bottom block, the positioning insertion holes are formed in the base at equal intervals, and after the limiting mechanisms are inserted, horizontal displacement of the lens is limited through physical constraint of the positioning insertion holes; meanwhile, the vacuum suction cup is matched with the sealing ring, uniform adsorption force is formed on the bottom of the lens, shaking caused by vibration and uneven weight during cutting is prevented through double effects, and it is ensured that the cutting track is consistent with the design contour of the lens; the limiting mechanism is installed in an insertion mode, and when lenses of different specifications are replaced, insertion hole combinations can be rapidly adjusted and positioned, and universality and efficiency are both considered.

The LED lamp bead surface mounting equipment comprises a base, in the using process, an electric push rod drives a positioning block to rapidly pre-position a substrate, a first motor drives a two-way screw to rotate, two sliding blocks drive a clamping plate to synchronously and reversely move, accurate clamping of the substrate is achieved, and the surface mounting efficiency of the LED lamp bead surface mounting equipment is improved. The friction force can be increased through the anti-skid rubber pads on the clamping plates, the base plate is prevented from sliding in the clamping process, and the positioning precision is greatly improved; the air cylinder can drive the transverse moving assembly, the rotating assembly and the chip mounting head to integrally ascend and descend, and the chip mounting height requirement is met; the transverse moving assembly drives a transverse lead screw to rotate through a second motor, and a limiting rod is matched for guiding, so that a moving seat drives a chip mounting head to stably and horizontally move, and the chip mounting transverse position is accurately adjusted; worm and worm wheel transmission is adopted in the rotating assembly, a third motor drives a worm to drive a worm wheel and a rotating shaft to rotate, then the angle of the chip mounting head is adjusted, and the chip mounting requirements of LED lamp beads in different arrangement modes are met.

The application discloses a kind of visual detection device and detection method of TR fabric high color fastness padding product, it is related to visual detection technical field, including visual detection device, and visual detection device includes unwinding unit, dark box and winding unit, the inside of the dark box is provided with positioning mechanism for the fabric of detection position is positioned, positioning mechanism includes: negative pressure unit, is set to the inside of dark box, by setting positioning mechanism, effectively solve the soft TR fabric in open detection area due to tension fluctuation and residual deformation and lead to the problem of bulging, warping.Negative pressure unit in the suction pump operation, negative pressure is generated in the inside of negative pressure box, and uniform adsorption force is generated to the air-permeable fabric body through the round hole on its top.Meanwhile, negative pressure box is equipped with several partition plates and is divided into multiple independent negative pressure chambers, and the size of negative pressure is adjusted by the electromagnetic valve installed on branch pipe, so that fine control of fabric tension is realized.

The utility model relates to the technical field of automatic auxiliary material sticking equipment, and discloses a gummed paper auxiliary material suction head and a film sticking machine thereof. A through hole penetrates through the top of the seat body; a connecting rod communicated with the through hole is arranged at the top of the seat body; a suction plate corresponding to the base body is arranged at the bottom of the base body; a plurality of suction holes communicated with the through hole are formed in the top of the suction plate in a penetrating manner; the connecting rod is communicated with the through hole, so that airflow or vacuum can be smoothly transferred into the suction head. The suction plate corresponding to the base body is arranged at the bottom of the base body, a plurality of suction holes are also formed in the top of the suction plate, and the suction holes and the through holes in the base body form a communication path, so that the function of adsorbing the adhesive paper auxiliary materials is realized. The adsorption force is uniformly distributed, the adsorption efficiency is improved, the processing, manufacturing and maintenance are convenient, and the adsorption device is suitable for automatic or semi-automatic production equipment, and has important significance on improving the precision and efficiency of auxiliary material laminating or carrying.

The application discloses a kind of basic sulphate load Pt composite material and its preparation method and application in seawater electrocatalytic hydrogen evolution, belong to the preparation technical field of electrocatalytic material.The application is to solve the technical problems of low catalytic activity of existing catalyst, and high cost of noble metal.Method includes:1) preparation basic nickel sulfate carrier;2) preparation Pt source solution;3) soaking;4) electrochemical treatment obtains basic sulphate load Pt composite material.The basic sulphate load Pt composite electrode material prepared by the application shows superior catalytic performance in alkaline conditions and seawater electrocatalytic hydrogen evolution, has excellent electrochemical performance and stability, and will have wide application prospect in the field of electrocatalytic water decomposition electrode material technology.The basic sulphate load Pt composite material electrolytic water catalyst prepared by the method of the application is used in the field of electrocatalytic material technology, and improves hydrogen energy preparation and seawater utilization problem.

The utility model discloses an adsorption table tray for advanced board-level packaging large board warping, which belongs to the technical field of chip packaging, the integral structure of the adsorption table tray is composed of a tray body and a base, a vacuum area is partitioned by partition strips on the bottom surface of the tray body, an air inlet of the base is connected with a vacuum pump, five paths of vacuum do not interfere with each other and are opened simultaneously, and the vacuum degree is high. The suction force of each subarea can be controlled through the design of the vacuum subareas, then the suction force of each part of the substrate is controlled so as to deal with various warping conditions, the plane contact design is further adopted, each substrate is directly attached to the top face of the disc body, the attaching area is increased, and the attaching effect is improved. And suction nozzles are arranged at the four corners and the center position of each adsorption unit, uniform adsorption is achieved, the situation of uneven adsorption is avoided, a deflation groove is omitted, and the situation that vacuum is released from the deflation groove when stress is released in the product cutting process is reduced.

The present disclosure provides a warped wafer transfer method and device, the method comprising: taking out a warped wafer from a first slot of a magazine by a Bernoulli arm and transferring it to a SUBCHUCK device; transferring the warped wafer, which has performed a pre-alignment operation, to a pre-calibrated loaded wafer position W2 by the Bernoulli arm, vertically moving a worktable to a pre-calibrated wafer handover height H1, opening a worktable vacuum, closing a Bernoulli arm blowing, and making the warped wafer fall onto the worktable; horizontally moving the worktable to a pre-calibrated auxiliary blowing position W3, opening an auxiliary blowing system located above the warped wafer, and making the warped wafer uniformly adsorbed onto the worktable. The transfer method and device provided by the present disclosure can improve the transfer efficiency of the warped wafer.

This invention discloses a cubic Ru / Co3O4 catalyst, its preparation method, and its applications, belonging to the field of electrode material technology. The method includes the following steps: S1, dissolving cobalt nitrate hexahydrate and hexadecyltrimethylammonium bromide in water, dissolving 2-methylimidazole in water, mixing and stirring to obtain a Co-MOF; S2, calcining the Co-MOF to obtain a Co3O4 cube; S3, dissolving the Co3O4 cube and ruthenium trichloride in water, and performing a hydrothermal reaction to obtain the cubic Ru / Co3O4 catalyst. This invention employs a preparation sequence of "calcination followed by hydrothermal loading," ensuring that Ru species are mainly distributed on the surface of the Co3O4 cube, avoiding Ru species embedding and agglomeration caused by high-temperature calcination. The resulting catalyst has a regular cubic morphology, uniform Ru dispersion, and high catalytic activity, showing broad application prospects in electrocatalytic oxygen evolution and hydrogen evolution.

The application relates to the technical field of building materials, and discloses a mortar containing nanomaterials and a preparation method thereof, the mortar being composed of 70-80 parts by weight of cement, 8-12 parts by weight of fly ash, 0.4-0.5 parts by weight of a polycarboxylate water reducing agent, 0.4-0.6 parts by weight of hydroxypropyl methylcellulose, 1-2 parts by weight of nanomaterials, 2-3 parts by weight of modified silk fibroin and 40-50 parts by weight of water. The modified nanosilica is modified by gamma-aminopropyl triethoxysilane, the modified cubic nanometer calcium carbonate is modified by fumaric acid, sodium stearate and palmitic acid, and the modified silk fibroin is prepared by being grafted and modified by a double-aminopropyl-terminated polysiloxane. The mortar is treated by optimizing component collocation, modifying the nanomaterials and the silk fibroin, the mechanical properties, the durability and the crack resistance of the mortar are remarkably improved, and the cost is controllable.