44results about How to "Uniform infiltration" patented technology

The invention discloses a corrosion chambering device and method for etched foils, and relates to the technical field of etched foils, the corrosion chambering device comprises a working plate and further comprises a positioning device, a placing frame is fixedly mounted at the top of the working plate, a U-shaped plate is fixedly mounted on the front side of the placing frame, and traction equipment is fixedly mounted at the top of the working plate; a corrosion table is fixedly mounted at the top of the working plate, a corrosion frame is fixedly mounted at the top of the corrosion table, a placement groove is formed in the top of the corrosion frame, a placement rod is fixedly mounted in the placement groove, displacement equipment is slidably mounted on the circumferential surface of the placement rod, and a positioning block moves in the direction close to a foil to drive a positioning rod and a positioning frame to move; the positioning frame moves to be in contact with the foil to be corroded and performs positioning correction on the foil, and through pre-positioning correction, the actual position of the hole can be ensured to be consistent with the design requirement, and the hole position problem caused by position deviation is avoided.

The invention relates to the technical field of irrigation control, in particular to an agricultural product irrigation control system based on the Internet of Things, and the system comprises a data acquisition module and a data analysis module which are used for dividing a to-be-irrigated agricultural product region into a dynamic change region and a stable region according to the average variation of soil data within a first preset time; the irrigation method determining module is used for determining a dynamic flow irrigation method or a low-flow infiltrating irrigation method to irrigate agricultural products according to the soil organic matter content; the irrigation adjusting module is used for determining whether to adjust the agricultural product irrigation control process or not according to the uniformity degree of the soil water content variation in the same irrigation area in the irrigation process and the plant growth height difference degree of a plurality of different irrigation areas; according to the method, different irrigation starting methods are selected by dividing different to-be-irrigated agricultural product areas, so that the accuracy of agricultural product irrigation process control is improved.

The utility model discloses a gear machining grinding machine convenient to collect chippings, which belongs to the technical field of gear machining and comprises a base, a workbench is connected above the base, a clamp seat is mounted at the center of the workbench, a mounting plate is connected to one side of the workbench, a machining table is connected to the workbench, and the machining table is connected to the clamp seat. A first slotting plate is connected to the side, close to the machining table, of the workbench, a second slotting plate is connected to the side, away from the machining table, of the workbench, and a scrap falling opening is formed in the workbench. According to the gear machining grinding machine facilitating scrap collection, a threaded rod is rotated through a motor, so that a movable plate can horizontally move along the threaded rod, scraps on the surface of a clamp base are scraped off through a first scraping plate, and meanwhile metal scraps in a groove of the clamp base can be cleaned through a second scraping plate; and the cleaned and scraped metal chippings can fall into the collecting box from the chipping falling opening, so that the chipping cleaning and collecting work is completed.

The utility model provides an environment-friendly waterproof structure, and relates to the field of building waterproof structures. Two rows of top bolts symmetrically penetrate through the outer eaves of the left side and the right side of the flexible plastic waterproof pad, the flexible plastic waterproof pad is fixed to a roof through the two rows of top bolts, and a plurality of rows of planting grooves are formed in the top end of the flexible plastic waterproof pad at equal intervals; the planting groove is of a rectangular structure, the interior of the planting groove is filled with soil, and green plants and flower plants for greening and environmental protection are planted in the soil; a soil sealing plate is embedded in an opening in the top end of the planting groove in a sealing and covering mode, the whole soil sealing plate is of a U-shaped structure, two L-shaped clamping plates are symmetrically and downwards welded to the top ends of a left side plate and a right side plate of the soil sealing plate, and two soil filtering assemblies can intercept and filter residual and mingled soil in overflowing water through nylon filtering wires evenly and densely distributed on the two soil filtering assemblies; the soil content in the rainwater is further reduced, and the probability that a roof drainage system is blocked and the water and soil loss of soil in the planting groove are further reduced.

The utility model relates to battery technical field discloses a battery and battery package, a kind of battery, including shell, cover plate, electric core and baffle;Shell has accommodating cavity and open mouth;Cover plate is capped in open mouth, and cover plate is equipped with liquid injection hole;Electric core is located in accommodating cavity;Baffle is connected to the one end of electric core in first direction close to cover plate;Along first direction, the orthographic projection of liquid injection hole on auxiliary plane falls into the orthographic projection range of baffle on auxiliary plane;Wherein, along first direction, the size of baffle is hmm, and the spacing distance between electric core and cover plate is H1mm satisfy: 0.5<=h / H1<=0.8;The battery of the utility model sets up baffle on electric core, and baffle can guide electrolyte from liquid injection hole into accommodating cavity, to avoid forming liquid seal phenomenon, improve electrolyte overall infiltration efficiency;By limiting 0.5<=h / H1<=0.8, can realize the uniform infiltration of electric core from bottom to top, improve the coverage degree of electrolyte to pole piece and diaphragm.

The utility model discloses environment-friendly water-free direct-injection wood pulp cotton which comprises a containing box, a pressing sleeve is connected to the outer side of the containing box in a sleeved mode, a wood pulp cotton body is installed in the containing box, a sliding groove is formed in the outer side wall of the containing box, and the pressing sleeve is connected to the interior of the sliding groove in a sliding mode. The first springs are fixedly installed at the inner bottoms of the sliding grooves, the lower ends of the left end and the right end of the pressing sleeve are slidably connected with limiting rods, one ends of the limiting rods penetrate and extend to the inner side wall of the containing box, and the outer sides of the limiting rods are connected with second springs in a sleeving mode. According to the environment-friendly water-free direct-injection wood pulp cotton, the wood pulp cotton has good water absorption, so that water is prevented from being injected and flowing, meanwhile, mould breeding can be effectively prevented, the cleaning efficiency is improved, cleanliness and sanitation are kept, then the wood pulp cotton can be effectively protected against external pollution, damage and pollution, and the environment-friendly water-free direct-injection wood pulp cotton is worthy of popularization and application. Meanwhile, the risks of pollution and bacterial infection are reduced, and then the overall attractiveness and usability are improved.

The embodiment of the utility model provides a preparation device of a continuous fiber fabric reinforced thermoplastic composite board, and the preparation device comprises a continuous fiber fabric providing unit which is used for providing a continuous fiber fabric; the resin infiltration unit is suitable for receiving the continuous fiber fabric provided by the continuous fiber fabric providing unit and infiltrating the continuous fiber fabric with thermoplastic resin, and the resin infiltration unit comprises a resin providing device suitable for coating one or two surfaces of the continuous fiber fabric with the thermoplastic resin; the pressing device is suitable for pressing the thermoplastic resin and the continuous fiber fabric; and the heating device is suitable for heating the thermoplastic resin in the pressing process. The composite board prepared by the preparation device has good mechanical properties and smoothness.

The invention relates to the technical field of cigarette packaging, in particular to low-gram-weight coated paper and application of the low-gram-weight coated paper in cigarette carton packaging. The low-gram-weight coated paper comprises a paper substrate and a coating arranged on at least one surface of the paper substrate, a material for forming the paper substrate comprises wood flour; materials for forming the coating comprise microcapsules and a binder, shells of the microcapsules comprise urea resin, and cores of the microcapsules comprise epoxy resin. According to the invention, wood flour in a paper substrate, a shell in a coating comprising urea resin and a core comprising microcapsules of epoxy resin are utilized to synergistically obtain a network structure with rigid supporting points, and the network structure with the rigid supporting points is helped to be uniformly infiltrated in the paper substrate in cooperation with the use of a binder; therefore, the paper-plastic composite paper with better stiffness is obtained.

The application belongs to the technical field of chemical fiber and textile, and discloses a multi-roller oiling device and application thereof. The multi-roller oiling device comprises an oil nozzle, an oiling pump, a first oil roller, a second oil roller and a skin pressing roller which are located in the wire passing channel of the oil nozzle. The second oil roller is located below the first oil roller, the rightmost sides of the two are located on the same vertical plane and are located on the right side of the left side wall, and the rotating directions of the two are the same. The skin pressing roller is located on the right side of the second oil roller, a gap is left between the two, and the rotating directions of the two are opposite. The left side wall of the oil nozzle is provided with an oil inlet and an oil outlet, the upper surface of the protruding part of the oil nozzle is provided with a C-shaped groove connected with the oil outlet, and the first oil roller is embedded in the C-shaped groove. The cross section of the first oil roller is composed of a center circle and a plurality of C-shaped lines. The preparation method of the profiled fiber is as follows: polyester melt extrusion, cooling and forming, oiling and winding and forming. The quality and efficiency of the preparation of the profiled fiber are improved.

The utility model discloses a horizontal traditional Chinese medicinal material infiltrating tank for traditional Chinese medicinal material processing, and belongs to the technical field of traditional Chinese medicinal material processing equipment. The horizontal traditional Chinese medicinal material infiltrating tank for traditional Chinese medicinal material processing comprises a supporting control box, transmission gears are rotationally connected to the inner walls of the two sides of the supporting control box, an L-shaped supporting plate is fixedly connected between the two transmission gears, a fixing plate is fixedly connected to the inner wall of the bottom of the supporting control box, and a transmission threaded rod is rotationally connected between the fixing plate and the supporting control box; according to the horizontal traditional Chinese medicinal material infiltrating tank for traditional Chinese medicinal material processing, a driving motor is controlled to be started to drive the transmission threaded rod to rotate, the transmission block can be driven to move, a transmission toothed bar drives two transmission gears to rotate, and therefore an L-shaped supporting plate rotates; therefore, the soaking tank is lifted to a vertical state through the supporting frame, flexible control over the soaking tank is achieved, loading and unloading of traditional Chinese medicinal materials are more convenient, and the operation efficiency is higher.

The invention discloses an etching foil corrosion hole expansion device and method, which relate to the technical field of etching foil, and include a working plate and a positioning device, wherein a placing frame is fixedly installed on the top of the working plate, a U-shaped plate is fixedly installed on the front side of the placing frame, a traction device is fixedly installed on the top of the working plate, an etching platform is fixedly installed on the top of the working plate, an etching frame is fixedly installed on the top of the etching platform, a placing groove is opened on the top of the etching frame, a placing rod is fixedly installed inside the placing groove, a displacement device is slidably installed on the circumferential surface of the placing rod, a positioning block moves in a direction close to the foil to drive the positioning rod and the positioning frame to move, the positioning frame moves to contact with the foil to be corroded and performs positioning correction on it, and through pre-positioning correction, it can be ensured that the actual position of the hole is consistent with the design requirements, and the hole position problem caused by position deviation can be avoided.

The application discloses a kind of short fiber insulation felt methods for preparing by wet process, short carbon fiber is laid into uniform mesh tire unit by airflow carding technology, after weighing, resin glue solution is sprayed on the surface of mesh tire and is conveyed to the pre-curing of baking tunnel;Using the mold of track reciprocating motion alternately receives the pre-cured mesh tire of conveying belt and the mesh tire unit of new laying machine, new laying mesh tire unit needs to be weighed, sprayed and pre-cured, and after multiple cycles, the dense multi-layer mesh tire structure with controllable layer number is formed;After the mold loaded with multi-layer mesh tire is hot-pressed and cured, the obtained blank is treated at high temperature in a graphitization furnace under inert gas or vacuum protection, and short fiber insulation felt is prepared.The method significantly improves the resin infiltration uniformity and structural density of the insulation felt through the synergistic optimization of resin infiltration and multi-layer laying process, the product density and thermal insulation performance are stable, and it is suitable for continuous production process, and has industrial application potential.

The present invention relates to the technical field of kaolin preparation, and discloses a method for preparing ultrafine kaolin by multi-force field regulation, comprising the following steps: adding water to kaolin ore to form kaolin slurry, and the kaolin slurry is sequentially classified by a multi-stage hydrocyclone and a horizontal spiral centrifuge to obtain fine-grained kaolin slurry; the fine-grained kaolin slurry is concentrated by a butterfly centrifuge, and then subjected to superconducting magnetic separation and chemical bleaching; the bleached kaolin slurry is filtered by a washing filter press; the filter cake is dispersed into 55-60% slurry by water and a dispersant, and then enters a horizontal mill for secondary grinding, and finally dehydrated and dried to obtain ultrafine kaolin. The beneficial effects of the present invention are: a multi-stage hydrocyclone is combined with a spiral centrifuge to maximize the removal of impurities such as free quartz, mica, and alunite, and fine-grained kaolin is retained and ultrafine grinding technology is used to achieve narrow particle size control of kaolin, thereby obtaining ultrafine kaolin with a finer particle size and improving the covering performance of kaolin.

The application relates to the technical field of batteries, in particular to a battery monomer and a battery pack. The application provides a battery monomer which comprises a shell, an electric core and a flow guide piece. The shell is provided with a first wall and a liquid injection hole. The electric core is arranged in the shell and has a first surface facing the first wall along the thickness direction of the first wall. The flow guide piece is arranged between the first wall and the first surface along the thickness direction of the first wall. The projection of the liquid injection hole falls into the projection of the flow guide piece along the thickness direction of the first wall. The flow guide piece has a bottom wall along the thickness direction of the first wall. The projection area of the first surface along the thickness direction of the first wall is S1, the projection area of the bottom wall is S2, and the following condition is met: 0.01<=S2 / S1<=0.15. The electric core can be uniformly infiltrated, and the liquid sealing phenomenon can be reduced.

The utility model provides a kind of fermentation tank for processing waxberry wine, including jar body, skin assembly, gas pulse stirring subassembly and circulating pump;Skin assembly includes spray pipe, liquid outlet pipe and reflux pipe, spray pipe is horizontally arranged in the inner chamber upper portion of jar body, spray pipe is equipped with multiple spray holes towards the inner chamber lower portion of jar body, liquid outlet pipe is located at the outside of jar body and its one end is communicated with the inner chamber lower portion of jar body, the other end of liquid outlet pipe is communicated with the inlet of circulating pump, the outlet of circulating pump is communicated with spray pipe by reflux pipe;Gas pulse stirring subassembly is located in the inner chamber lower portion of jar body, gas pulse stirring subassembly includes gas distributor and fairing, gas distributor is equipped with multiple gas outlets, fairing fixed cover is arranged above gas distributor, fairing has inverted U-shaped cross section, and the top of fairing has opening towards the inner chamber upper portion of jar body.The utility model can gently break and turn over the fruit cap that floats, and uniformly infiltrate the loose fruit cap.

The application belongs to the technical field of additive manufacturing material preparation, and particularly relates to a preparation device and method of high-fiber-content reinforced polyether ether ketone 3D printing wire rod, which comprises: a material source assembly for providing an impregnated tape; a filament splitter in communication with the material source assembly, which divides the wide impregnated tape into multiple narrow strips through a cutter shaft and a circular disc split cutting knife; multiple multi-nozzle step-by-step pultrusion devices corresponding to the narrow strips, which are provided with multiple nozzles with gradually reduced diameters at the discharge end, and are used for heating, guiding, pressurizing, impregnating and cooling the narrow strips; and a wire collecting reel in communication with each pultrusion device. Through the parallel process of "first dividing and then pulling", the application solves the problems of low forming freedom of the wide pre-impregnated tape, large damage and high cost in traditional wire rod preparation, and realizes efficient and low-damage continuous production of high-performance 3D printing wire rod.

The utility model discloses a traditional chinese medicinal material is planted and is used infiltration device, including reciprocating structure, reciprocating structure sets up in the infiltration frame front end, reciprocating structure includes the incomplete gear and sets up at its both sides a plurality of tooth groove, the incomplete gear is engaged with tooth groove, realizes the back and forth reciprocating movement of infiltration frame, the turbulence generating device, the turbulence generating device sets up in the infiltration tank lower part, the turbulence generating device includes a plurality of jet pipe, all have opened the lance that communicates with its on the jet pipe upper end, the jet pipe provides compressed air through the compressed air pump. The utility model discloses through reciprocating structure makes the infiltration frame back and forth reciprocating movement, drives traditional chinese medicinal material to move in the infiltration liquid, makes the infiltration liquid to traditional chinese medicinal material's penetration rate improve, has reduced the infiltration time, has improved the infiltration efficiency, and the turbulence of turbulence generating device generation has promoted the flow of infiltration liquid, has avoided the situation that liquid local concentration is too high or too low.

The utility model discloses a braided tube infiltrating device which comprises a box body, a processing box is connected to the middle of the upper end of the box body, supporting plates are connected to the two sides of the upper end of the processing box, and a frame body is connected to the upper ends of the two supporting plates. According to the braided tube infiltration device, through mutual cooperation of the arranged frame body, the electric telescopic rod, the moving plate, the supporting plate, the placing frame, the shell, the hydraulic cylinder and the pressing plate, a braided tube can be conveniently fixed in the treatment box, the situation that the braided tube floats is avoided, infiltration operation can be thoroughly conducted on the surface of the braided tube, and the working efficiency is improved. The braided tube can be conveniently taken after infiltration is completed, and the using effect of the device is improved; through mutual cooperation of a liquid pump, a connecting pipe, a fixing pipe, a conveying pipe, a supporting pipe, a mounting pipe, a spraying head and a liquid outlet pipe, infiltration liquid can be conveyed into the braided tube, so that the interior and the exterior of the braided tube can be uniformly infiltrated, and the practicability of the device is improved.

The present application relates to a kind of green frozen sand mold additive manufacturing forming system equipment and method, including heat-insulated sealed printer shell;Detachable multifunctional printing platform;With temperature adjustment function's ink supply system;With heat insulation function's printing assembly;Adjustable sanding volume's sanding device;Adjustable interlayer refrigerator;Multi-material precooling sand mixing device;External control cooling and humidity refrigerating unit.The device of the present application is based on the principle of additive manufacturing, according to the designed three-dimensional digital model of casting, adopts interlayer cooling method to rapidly cool down and freeze the sprayed water-based ink, forms layer by layer, can quickly produce multi-material, green pollution-free, high-quality complex sand mold (core), meet the casting needs in many aspects, improve the performance and precision of casting, realize the high efficiency, high performance and green casting of complex casting.

The washing equipment comprises an impeller and a motor used for providing power for the impeller, a current value I0 is preset, in the water inlet process, the impeller is controlled to rotate, the current value I of the motor is obtained, the obtained current value I and the preset current value I0 are compared, and if I is smaller than or equal to I0, water inlet is controlled to be finished. When water starts to enter, the impeller is in direct contact with a to-be-washed object, and the impeller rotates to drive the to-be-washed object to rotate, so that the load of the motor is large, the load of the motor is reduced along with the increase of the water, the to-be-washed object is lifted up by the water and is gradually separated from the direct contact with the impeller, and the current flowing through the motor is also reduced in the process that the load of the motor is reduced from large to small; according to the washing machine, whether water inflow is completed or not is judged by monitoring the current flowing through the motor, the influence of factors such as the water absorption difference of different to-be-washed objects on the water inflow can be effectively avoided, and it is ensured that water inflow can accurately meet the requirement every time.

The utility model relates to the technical field of new energy automobile accessory production, and discloses a lubricating grease filling device for automobile bearing production, which comprises a base, the middle part of the top end of the base is fixedly connected with a direct current motor, and the output end of the direct current motor is fixedly connected with a conical block. A bidirectional electric telescopic rod is fixedly connected to the front side of the top end of the base, a clamping plate is fixedly connected to the telescopic end of the bidirectional electric telescopic rod, an electric telescopic rod is fixedly connected to the rear side of the top end of the base, a fixing block is fixedly connected to the telescopic end of the electric telescopic rod, and a moving plate is slidably connected to the top end of the fixing block. According to the bearing lubricating device, through mutual cooperation of the electric telescopic rod, the injection pipe and the conical block, it can be guaranteed that lubricating grease can evenly permeate into a bearing, the effect of sufficient lubricating is achieved, and through mutual cooperation of the pin roller, the gear and the second rack, accuracy and high efficiency of operation can be guaranteed.

The present invention provides an infiltration extrusion die head for producing high-strength coated sheet products, comprising a left baffle and a right baffle, a preheating body is arranged between the left baffle and the right baffle, an upper die body, an upper middle die body, a lower middle die body and a lower die body are arranged in front of the preheating body from top to bottom, a die lip is arranged at the intersection of the front ends of the upper middle die body and the lower middle die body, an upper feed port and an upper flow channel are arranged between the upper die body and the upper middle die body, a lower feed port and a lower flow channel are arranged between the lower middle die body and the lower die body, a wavy melt infiltration channel is arranged between the upper middle die body and the lower middle die body, a substrate channel is arranged on the preheating body, and the substrate passes through the substrate channel and merges with the molten plastic in the upper flow channel and the lower flow channel, enters the wavy melt infiltration channel, is fully mixed and infiltrated, and finally extruded from the die lip. The present invention can ensure that the plastic and the substrate can be fully infiltrated, so that the product has high strength and good surface quality.

The utility model discloses a spraying head of an electric heating coffee barrel. The spraying head comprises a spraying pipe column and a spraying head body. The spraying pipe column is connected to the top end of a spraying column of the coffee barrel; the spraying head comprises a diffusion opening and an arc-shaped top; the lower portion of the diffusion opening is communicated with the spraying pipe column and is of a horn-shaped structure with the upward section gradually enlarged. The arc-shaped top is of an arc-shaped top structure and is fixed to the top end of the diffusion opening. And a plurality of spraying openings are formed in the periphery above the diffusion opening. According to the utility model, the scattering ports and the spraying ports are used for synergistically guiding flow, and the trumpet-shaped diffusion port design is combined with the plurality of spraying ports distributed in the circumferential direction, so that water vapor can be converted from concentrated spraying to multidirectional diffusion, the coverage range is expanded, the surface of the extraction basket is ensured to be uniformly infiltrated, and local over-extraction or insufficient extraction is avoided.

The utility model discloses a horizontal traditional Chinese medicinal material infiltrating tank for traditional Chinese medicinal material processing, and relates to the technical field of infiltrating devices.The horizontal traditional Chinese medicinal material infiltrating tank for traditional Chinese medicinal material processing comprises an infiltrating tank body, a servo motor is fixedly installed on the outer wall of the infiltrating tank body, and a feeding hopper is arranged above the infiltrating tank body; a transmission shaft is fixedly mounted at the output end of the servo motor, a spiral stirring rod is fixedly mounted on the surface of the transmission shaft, and the device further comprises a feeding device and a vibration device; the feeding device comprises a fixing frame, a U-shaped plate, an electric push rod, a connecting plate, a fixing rod, a baffle and a sliding rod, the horizontal traditional Chinese medicinal material infiltrating tank for traditional Chinese medicinal material processing can effectively prevent medicinal materials from being stacked at one end in the infiltrating tank body, and meanwhile, the situation that the medicinal materials are stacked at the same position due to the fact that excessive medicinal materials are fed at a time is avoided; therefore, the soaking effect of partial medicinal materials is influenced, and the medicinal materials are soaked more uniformly.

The utility model relates to the technical field of liquid crystal glass substrate processing and manufacturing, in particular to a liquid crystal glass substrate conveying device which comprises a base. The motor is mounted on the base, and the motor is connected with the conveying assembly so as to convey the liquid crystal glass substrate; the multiple telescopic columns are vertically arranged and correspond to the multiple brush belts on the conveying assembly in a one-to-one mode, and a cleaning assembly is installed at the top end of each telescopic column; the liquid supply assembly comprises an alcohol tank and a peristaltic pump, one end of the peristaltic pump communicates with the alcohol tank through a hose, the other end of the peristaltic pump is connected with a plurality of flow guide pipes, and the tail ends of the flow guide pipes extend to the top ends of the corresponding telescopic columns; the liquid supply assembly and the cleaning assembly are arranged at the bottom of the conveying assembly, automatic cleaning of a brush belt can be achieved without shutdown, and the production efficiency of the liquid crystal glass substrate is improved; the angle of the atomizing nozzle is consistent with the inclination angle of the cleaning cotton, so that the cleaning cotton can be uniformly soaked, and the cleaning effect of the brush belt is improved.

The invention belongs to the technical field of composite material isolation sleeves, and discloses a forming method of a high-strength composite material isolation sleeve, before resin is cured, a 0.8-1.2 MPa pressure carrier is injected into a bag type male mold cavity, uniform tension in all directions is applied to a continuous fiber prefabricated body through bag body expansion, and a reserved gap between the prefabricated body and a female mold is matched with the tension expansion size. According to the design, the fibers are regularly arranged in the whole curing process, local curling and stacking are avoided, finally, the tensile property of the formed composite material isolation sleeve is greatly improved, the compression strength meets the strict requirement of a magnetic drive pump serving as a pressure-bearing component, and the failure risk caused by disordered fiber stress of a traditional product is fundamentally solved; the method comprises the following steps: firstly, sucking a module cavity for 15-20 minutes under the negative pressure of-0.095 to-0.098 MPa, and thoroughly exhausting air in the cavity; and the defoamed resin is sucked into the cavity by means of negative pressure, and meanwhile, the flow velocity is controlled to prevent fiber displacement, so that the resin is ensured to fully and uniformly infiltrate the preform.

The invention relates to a semiconductor equipment part surface coating process which comprises the following steps: S1, yttrium-containing composite coating deposition: putting a part into ALD deposition equipment, and introducing a precursor for coating deposition to obtain a part on which a yttrium-containing composite coating grows; and S2, plasma bombardment: carrying out plasma bombardment on the part on which the yttrium-containing composite coating is grown in plasma equipment so as to form a composite gradient fluorinated coating on the surface of the part and finally obtain a product. According to the method, a fluoride precursor does not need to be developed, the existing mature ALD process continues to be used, the development period is greatly shortened, the cost is reduced, and the prepared coating has good corrosion resistance, bonding performance and heat resistance.

This utility model provides a high-efficiency emulsification and mixing device for low-fat hot pot base, relating to the field of food processing equipment technology. It includes a base, a pre-emulsification tank on top of the base, a tank cover on top of the pre-emulsification tank, a solid feed inlet and a liquid feed inlet on top of the tank cover, a conveying pipe on one side of the pre-emulsification tank, a metering system at the other end of the conveying pipe, a motor on one side of the metering system, a high-efficiency emulsification tank at the bottom of the motor, a mixing buffer tank at the bottom of the high-efficiency emulsification tank, and a support leg and a discharge pipe at the bottom of the mixing buffer tank. By using a pre-emulsification tank, a spiral guide plate and stirring device designed using fluid dynamics are used to create a strong vortex during the initial material fall and pumping. This not only initially disperses solid materials but also allows water, oil, and powder to be initially and evenly wetted, avoiding subsequent "clumping" and laying the foundation for high-efficiency emulsification. This is faster than traditional mixing tanks and is a continuous process.

The application discloses a glass fiber reinforced polypropylene material, a preparation method and application, and belongs to the technical field of polypropylene engineering plastics. The material contains, in terms of weight parts, 40-70 parts of polypropylene resin, 20-50 parts of alkali-free continuous long glass fiber, and compounded antioxidants, compatibilizers, scratch-resistant agents, heat-resistant agents and light stabilizers. The alkali-free continuous long glass fiber has a diameter of 10-14 microns, a breaking strength of greater than or equal to 3000 MPa, and a linear density of 2400 tex or 3600 tex. The material has high strength, aging resistance and low-temperature impact resistance, and is suitable for automobile structural parts.

The invention relates to the technical field of catalysts, and discloses a high-efficiency catalyst for polyol synthesis and a preparation method thereof, the catalyst uses boron nitride with a hierarchical porous structure as a carrier, uses molybdenum and cobalt as active metal components, and performs surface modification through a specific organic ligand. The preparation method mainly comprises the following steps: carrier pretreatment, equivalent-volume impregnation loading of active components, temperature programming preliminary heat treatment, reduction activation under specific conditions, microwave-assisted surface modification and the like. The initial activity and selectivity of the catalyst are improved, it is guaranteed that the catalyst obtains high metal dispersity and excellent batch-to-batch stability, and the anti-sintering capacity and durability of the catalyst in the polyol synthesis reaction are improved.