53results about How to "Reduce layering" patented technology

The invention provides ceramic binder slurry, a preparation method thereof and a gas sensor chip. The ceramic binder slurry comprises the following components in percentage by mass: 65-73% of yttrium-stabilized zirconia powder, 15-21% of an organic solvent, 4-6% of a binder, 1-3% of a plasticizer, 1-2% of a dispersant, 1-2% of a thixotropic agent and 1-2% of a lubricant. The ceramic binder slurry provided by the invention can effectively enhance the binding force between zirconium oxide substrates, thereby reducing the probability of layering and cracking of a ceramic layer of a sintered gas sensor chip due to inconsistent sintering temperature and shrinkage rate in the co-sintering process of the zirconium oxide substrates and an aluminum oxide insulating layer; and the yield of the gas sensor chip is improved.

The invention discloses a tundish cover castable, and relates to the technical field of tundish refractory materials. The tundish cover castable is prepared from the following raw material components in percentage by mass: 7.8 to 9.6 percent of alumina of 8 to 5mm, 2.6 to 4.3 percent of alumina of 5 to 3mm, 2.6 to 4.3 percent of alumina of 1 to 0mm, 17.4 to 20.8 percent of alumina of 200 meshes, 9.6 to 13 percent of mullite of 5 to 3mm, 22.6 to 26 percent of mullite of 3 to 1mm, 9.6 to 13 percent of mullite of 1 to 0mm, 7 to 8.7 percent of mullite of 200 meshes, 2.6 to 3.5 percent of composite binding agent, 0.8 to 1.7 percent of aluminum silicate, 0.05 to 0.07 percent of SiC nanowire, 0.2 to 0.3 percent of aluminum titanate and the balance of water. The invention discloses a tundish cover castable which comprises the following components in percentage by weight: 0.4-0.7% of alumina micro powder, 0.08-0.11% of sodium tripolyphosphate, 2.6-3.5% of silica fume, 0.87% of steel fiber and 1.3-1.7% of high-alumina cement. Compared with a traditional process, the tundish cover castable has the advantages that the overall performance of the tundish cover castable is remarkably improved, the breaking strength and compression strength of the castable are effectively enhanced, the service life is remarkably prolonged, and the production cost is reduced. And the production cost is greatly saved, and the economical efficiency and the operation rate of continuous casting operation are improved.

The invention relates to a polyamide composite membrane containing a middle layer and a preparation method of the polyamide composite membrane. The polyamide composite membrane comprises a polyborosiloxane-based porous polymer substrate, a modified polyimide middle layer and a polyamide separation layer, a modified polyimide intermediate layer is loaded on the surface of the porous polymer substrate, and a polyamide separation layer is loaded on the surface of the modified polyimide intermediate layer. The polyborosiloxane-based porous polymer substrate and the modified polyimide intermediate layer have better compatibility, interface defects can be reduced, the overall performance of the membrane can be improved, moreover, the polyborosiloxane-based porous polymer substrate also has a self-healing characteristic, and after the polyborosiloxane-based porous polymer substrate is damaged, the self-healing property of the polyborosiloxane-based porous polymer substrate is improved. Fractured connection can be repaired without external stimulation (such as light and heat), and self-repairing of the substrate is achieved.

The invention discloses a high-temperature-resistant UV highlight plate and a preparation process thereof, and belongs to the technical field of UV highlight plates. The high-temperature-resistant UV highlight plate comprises an MDF base material, the MDF base material contains a moisture-proof solvent, the surface of the MDF base material is sequentially coated with a seal primer, a modified epoxy resin bottom coating, a middle coating and a surface coating, and the middle coating contains nano titanium dioxide, an organosilicon compound and a silane coupling agent. According to the high-temperature-resistant UV highlight plate and the preparation process thereof, MDF containing a moisture-proof solvent is adopted as a base material, paraffin emulsion forms a layer of hydrophobic film to reduce moisture permeation, a silane coupling agent can improve interface bonding between fibers and resin and improve the moisture resistance, polyvinyl alcohol can enhance the bonding force between the fibers and reduce moisture absorption, and the high-temperature-resistant UV highlight plate is prepared. When the additives are used at the same time, the additives can complement each other to jointly improve the moisture resistance and mechanical property of the MDF base material, so that the high temperature resistance of the material is improved.

The application belongs to the technical field of circuit board manufacturing, and particularly relates to an embedded circuit board and a preparation method thereof. The preparation method of the embedded circuit board comprises the following steps: obtaining an embedded module, manufacturing a first bonding layer on at least part of the surface of the embedded module; placing the embedded module in a containing groove formed by communication of the grooves, and pressing the laminated plate structure to embed the embedded module in the containing groove; pressing a second build-up layer to fan out signals of the embedded module to the first build-up layer; forming an insulating layer and a connecting layer on the second build-up layer to obtain the embedded circuit board. The first bonding layer on the surface of the embedded module has high bonding force and stress buffering effect with the embedded module, an SIC chip and resin, and can be used as an intermediate buffering layer to connect the embedded module and a PP layer, thereby effectively reducing the problem of delamination due to insufficient bonding force.

The utility model discloses an air pump feeding device of a soft capsule pelleting machine, which comprises an air pump, a sealing material box and a charging barrel, the output end of the air pump is communicated with the inside of the sealing material box through an air pipe, the sealing material box is communicated with the inside of the charging barrel through a conveying pipe, the conveying pipe is formed by connecting a vertical pipe and a horizontal pipe through a bent pipe, and the vertical pipe is connected with the horizontal pipe through a connecting pipe. The end, penetrating into the charging barrel, of the transverse pipe is connected with a spraying pipe, a T-shaped structure is formed between the spraying pipe and the transverse pipe, the spraying pipe is attached to the inner wall of the charging barrel, and the extension line where liquid spraying openings in the two ends of the spraying pipe are located is tangent to the inner wall of the charging barrel. Compared with manual feeding, a conveying pipeline formed by the air pump, the sealing material box and the conveying pipe is arranged, feeding is more convenient and labor-saving, meanwhile, the installation position of the spraying pipe in the material barrel is low, and the liquid spraying line of the spraying pipe is tangent along the inner wall of the material barrel, so that original material liquid in the material barrel is conveniently impacted and uniformly mixed during feeding, and the feeding efficiency is improved. And the feed liquid in the feed cylinder can be in a continuous motion state, so that the problem of layering of the feed liquid is reduced.

This utility model discloses a quantitative dispensing and packaging device for edible oil, relating to the field of edible oil packaging technology. It includes a base, with two mounting brackets fixedly connected to the upper surface of the base. An oil storage tank is fixedly connected to the upper surface of the two mounting brackets, and an oil inlet pipe is fixedly connected to the upper surface of the oil storage tank. A pump is mounted on the surface of the base, and a quantitative tank is mounted on the surface of the base. An oil drain pipe is fixedly connected to the side of the pump and the quantitative tank that are close to each other, and an oil outlet pipe is fixedly connected to the side of the oil storage tank that is close to the pump. Valves are provided on the surface of both the oil drain pipe and the oil outlet pipe. A dispensing head connected to the pump is mounted on the surface of the base. This utility model uses a rotating auger, scraper, gear ring, gear, stirring rod, and stirring blades to stir the edible oil in the oil storage tank, reducing the occurrence of stratification and sedimentation in the edible oil and improving the practicality of the edible oil dispensing and packaging device.

The application discloses a composite flocculant based on aluminum chloride and a preparation method thereof, and belongs to the technical field of flocculant preparation, and is used for solving the technical problem that the stability and flocculation performance of the flocculant need to be further improved in the prior art; the branched polymer containing polycarboxyl groups is prepared by the reaction of tris(2-aminoethyl)amine and pyromellitic dianhydride, and the taurine groups are introduced to obtain the sulfobranched polycarboxyl polymer; the titanium phosphorus silicon aminopropyl composite is synthesized by using the sol-gel method, and the inorganic-organic network combination is realized; the polyimidazolium-hydroxy ether is obtained by the reaction of imidazole, epichlorohydrin and bisphenol A diglycidyl ether; the composite flocculant is formed by the reaction of the three under the acidic condition, the composite flocculant combines the polycarboxyl groups, the sulfonic acid groups, the imidazolium groups and the inorganic-organic skeleton, has high charge density, good adsorption and bridging performance, can rapidly form stable flocs, and can effectively remove the suspended particles and organic pollutants in water.

The utility model relates to the technical field of paint dilution equipment discloses a paint dilution device for building paint production, including support seat, the inside fixed connection of support seat has motor no.

The utility model relates to the technical field of batten cutting, and discloses a batten cutting device convenient for fixing a batten, which comprises a cutting knife mounted on a working table through a mounting frame I, the two pressing wheels are installed on the workbench through two second installation frames correspondingly, and the two pressing wheels are located on the two sides of the cutting knife. The condensing equipment is installed on the bottom plate, the condensing equipment is communicated with a condensing pipe, the condensing pipe penetrates through the cutting knife, and the cutting knife is provided with a containing cavity used in cooperation with the condensing pipe; the dust collection plate is mounted above the cutting knife; the dust collection equipment is mounted on the bottom plate, and the dust collection equipment is communicated with the dust collection plate through a connecting pipe. According to the shaving board cutting device, efficient, accurate and environment-friendly cutting of shaving boards is achieved through the cutting knife, the pressing wheel, the condensing device, the dust collection device, high-hardness materials, precise design, stable pressing, heat absorption and strong suction force.

The utility model belongs to the technical field of coating grinding, and particularly relates to a coating grinding machine with a screening structure, which comprises a collecting box, a grinding box and a feeding bin, the feeding bin is arranged on the upper surface of the grinding box, through holes are formed in the bottom of the feeding bin, the upper surface of the grinding box and the upper surface of the collecting box, the grinding box is arranged above the feeding bin, and the screening structure is arranged on the collecting box. A scraping mechanism is arranged in the collecting box; the scraping mechanism comprises a scraping unit and a cleaning unit; the scraping unit comprises a sliding groove, an air cylinder, a sliding block and a scraping plate. According to the coating grinding machine with the screening structure, a scraping unit is arranged, an air cylinder is used for driving a sliding block to slide in a sliding groove, then a scraping plate is driven to scrape the inner wall of a collecting box, residual materials on the inner wall can be more effectively scraped through the design of the right-angle face of the scraping plate, an electric push rod drives a cleaning push plate and a cleaning inclined block to move, and the cleaning effect is better. And residual materials can be better collected through the discharge port.

A positive electrode composition, a positive electrode, and a rechargeable lithium battery are disclosed. A positive electrode for a rechargeable lithium battery includes a positive electrode current collector and a positive electrode mixture layer formed on the positive electrode current collector, in which the positive electrode mixture layer includes a positive electrode active material and a binder including a hydrogenated carboxy nitrile rubber. The hydrogenated carboxy nitrile rubber includes, based on 100 wt% of the total weight of the hydrogenated carboxy nitrile rubber: from about 20 wt% to about 40 wt% of a first structural unit derived from acrylonitrile; from about 30 wt% to about 78 wt% of a second structural unit, the second structural unit including a hydrogenated butadiene-derived structural unit and a butadiene-derived structural unit; from about 2 wt% to about 10 wt% of a third structural unit derived from an acrylate; and from about 0 wt% to about 20 wt% of a fourth structural unit derived from butene.

The utility model discloses a carbon fiber surface layer snowboard, which comprises a surface layer, a core layer and a bottom layer which are sequentially laminated, the surface layer is a carbon fiber fabric curing plate, and a glass fiber and / or carbon fiber fabric reinforcing layer is arranged between the surface layer and the core layer and / or between the core layer and the bottom layer. The carbon fiber fabric solidified plate is used as the surface layer of the snowboard, so that the overall strength and rigidity of the snowboard are remarkably improved, the weight is greatly reduced, a skier can control the snowboard more easily and freely, and the flexibility and comfort of sliding are improved; the glass fiber and / or carbon fiber fabric reinforcing layer is additionally arranged, so that the impact resistance of the snowboard is further enhanced, the damage risk during high-speed sliding or collision is effectively reduced, meanwhile, the torsional rigidity is improved, and the stability and the control accuracy of the snowboard in a complex snowway environment are ensured; interlayer stripping is prevented, and the durability of the snowboard is also improved.

A display device according to an exemplary embodiment of the present application includes a cover window, a flexible display panel disposed on a rear surface of the cover window, a metal plate disposed on a rear surface of the flexible display panel, and a plurality of first reinforcing layers overlapping the cover window and formed of a material different from the metal plate, wherein a rear surface of the metal plate and a rear surface of the plurality of first reinforcing layers are disposed on the same plane.

The utility model relates to a water quenching pool. The device comprises a tank body, a stirring mechanism, an aeration mechanism and a circulating cooling system, the stirring mechanism is installed in the tank body through a support, the stirring mechanism comprises a stirring shaft, stirring blades and a motor, the stirring shaft is rotatably installed on the support in the vertical direction, the stirring blades are installed on the stirring shaft in the axial direction of the stirring shaft, and the stirring shaft can be driven to rotate through the motor; the aeration mechanism is mounted at the bottom of the tank body, and air can be injected into water through the aeration mechanism, so that the cooling uniformity of the casting is improved; the tank body is further connected with a circulating cooling system, and the temperature of water in the tank body can be reduced through the circulating cooling system. According to the scheme, the uniformity of the water temperature in the pool can be improved, a heat insulation steam film is damaged during water quenching, water makes continuous contact with the surface of the casting, and the water quenching effect is guaranteed.

The invention discloses a red apple juice beverage and a preparation method thereof. The red apple juice beverage comprises 100 parts of freshly squeezed apple juice and 0.1-0.5 parts of water chestnut extract; the freshly squeezed apple juice comprises Fuji apple juice and red apple juice; the water chestnut extract comprises a supernatant extract and a precipitate extract. The water chestnut is pulped, treated with steam, and enzymatically hydrolyzed to obtain a supernatant and a precipitate; the supernatant and the precipitate are ultrasonically treated respectively, and the supernatant is extracted with ethanol to obtain a supernatant extract; the precipitate is extracted with dilute acid to obtain a precipitate extract, and the supernatant extract and the precipitate extract are mixed to obtain a water chestnut extract. The present invention enzymatically hydrolyzes water chestnuts (including peels), and then separately extracts the obtained supernatant and precipitate, and the obtained water chestnut extract is added to the freshly squeezed apple juice, which can not only reduce the content of polyphenol oxidase in apple juice and prevent browning, but also delay juice stratification, and will not affect the taste of apple juice.

The utility model discloses a kind of powder samplers, including bottom plate, the outer surface of the bottom plate is fixedly connected with placing table, the outer surface of the placing table is fixedly installed with sampling body, the inside fixed connection of the sampling body has pneumatic cylinder. The insertion depth of the device pneumatic cylinder drive telescopic link adjustable collection head, avoid the deviation caused by fixed position sampling, ensure that sample is collected from different levels such as container upper, middle, lower layer, improve the representativeness of mixed powder, according to powder characteristics such as particle size, fluidity design different shape collection head such as spiral, porous, reduce the influence of particle stratification or selective adsorption, water tank, water pump, connecting hose can be automatically flushed collection head and pipeline after sampling, prevent residual powder from polluting next batch sample, compared with manual cleaning, automatic flushing is more thorough, reduce the risk of human operation error, by operation box one-key control sampling, cleaning process, reduce manual intervention.

The invention relates to the technical field of calcium carbonate powder modification, and provides a surface modification method of environment-friendly calcium carbonate powder. The method comprises the following steps: S1, pretreating calcium carbonate powder, and removing impurities and enhancing surface activity through ultrasonic dispersion and acidic pretreatment; s2, mixing a plant source coupling agent with deionized water according to a ratio of 1: 10, heating to 30-50 DEG C, and adjusting the pH value to 5.0-6.0 to form a coupling solution; s3, stirring and mixing the pretreated calcium carbonate powder with a coupling solution according to a ratio of 1: 1; s4, the modified calcium carbonate powder is washed with deionized water until washing liquor is colorless, redundant coupling solution is removed, the calcium carbonate powder is placed in a drying oven to be dried, and a tannic acid coupling layer is stably attached. The plant source coupling agent and the water-based treating agent are adopted to effectively replace an organic solvent coupling agent commonly used in traditional modification, emission of volatile organic compounds is reduced, environmental pollution in the production process is remarkably reduced, the requirements of environmental protection laws and regulations and sustainable development are met, and negative effects on an ecological system are remarkably reduced.

The utility model provides a pigment vibration dispersion device, relates to pigment processing field, including base, adjusting piece and processing bin, base top both sides are provided with two sets of adjusting piece, adjusting piece right side is provided with drive motor, adjusting piece inner side is provided with processing bin, the processing bin top is provided with drive motor, the drive motor is provided with drive motor. The processing device comprises a processing bin, a driving motor is arranged in the processing bin, a stirring paddle is arranged in the processing bin, two sets of damping springs are arranged on the two sides of the connecting end of the bottom of the stirring paddle, and two sets of vibrators are arranged in the stirring paddle at equal intervals. In the shaking process of the processing bin, the materials can be effectively prevented from being caked, the caked materials are prevented from being attached to the inner wall of the processing bin, meanwhile, sedimentation and layering of particles or solid materials can be effectively reduced through shaking of the processing bin, the uniformity of a mixture can be kept, and the product quality is improved.

The invention discloses a notebook computer shell uniform spraying device which comprises a rack, a stand column is rotationally installed in the middle of the rack, a driving assembly for driving the stand column to rotate is arranged on the rack, a bearing supporting plate is fixedly installed at the top of the stand column, and a clamping mechanism for clamping a notebook computer shell is arranged on the bearing supporting plate. A second gear ring is arranged above the rack, an annular limiting groove is formed in the inner wall of the second gear ring, a mounting base plate is arranged at the top of the second gear ring, a vertical rod is fixedly mounted on one side of the bottom of the mounting base plate, a limiting wheel is rotationally mounted on the vertical rod, a second motor is arranged at the top of the mounting base plate, and an output shaft of the second motor is connected with a second gear. According to the device, a dual-rotating mechanism is adopted, so that the notebook computer shell can be sprayed with paint from different directions in the clamping process, the spraying uniformity is improved, and through the design, it is guaranteed that the surface of the shell is covered with the paint more comprehensively, and the quality problem caused by uneven spraying is further reduced.

The invention discloses a multifunctional composite ultramicro cotton needled felt and a preparation method thereof.The multifunctional composite ultramicro cotton needled felt comprises a needled felt body and base cloth, the needled felt body is composed of the base cloth, a filter layer, a heat insulation layer and a sound absorption layer, and the filter layer, the heat insulation layer and the sound absorption layer are sequentially distributed on the outer side of the base cloth from inside to outside; the filter layer is directly connected with and covers the outer side of the base cloth, the heat insulation layer is connected with and covers the outer side of the filter layer, and the sound absorption layer is connected with and covers the outer side of the heat insulation layer. Through the arrangement of the heat insulation layer and the combined use of the ceramic fibers and the aerogel material, the heat insulation layer can achieve an efficient heat insulation effect and remarkably reduce the heat transfer rate, and the ceramic fibers and the aerogel material are environment-friendly materials, do not contain harmful substances and do not cause harm to the environment and human health; and the materials can be recycled, so that the resource consumption and the waste generation are reduced, and the environmental protection property and the sustainability of the material are further improved.

The invention discloses a thermal-electric-chemical coupled solid oxide stack which comprises a lower end plate and an upper end plate, and a plurality of SOFC (solid oxide fuel cell) single cells and SOEC (solid oxide electric cell) single cells are arranged between the lower end plate and the upper end plate; each SOFC single battery comprises an SOFC cathode, an SOFC electrolyte and an SOFC anode which are crimped in sequence; each SOEC single battery comprises an SOEC cathode, an SOEC electrolyte and an SOEC anode which are crimped in sequence; the chamber where the SOEC anode is located is communicated with the chamber where the SOFC cathode is located, and oxygen generated by electrolysis of the SOEC anode can enter the SOFC cathode side to participate in the reaction; and the SOFC single batteries and the SOEC single batteries are electrically connected in series through connectors or current collectors. According to the invention, the SOFC units and the SOEC units are arranged in the same electric pile alternately or in blocks, and specific gas paths and circuits are opened, so that gradient utilization of energy and efficient and stable operation of the system are realized.

A battery back passivation structure, a manufacturing method therefor, and a solar cell, the manufacturing method comprising: introducing a dopant gas and a first reaction gas into a coating device, and depositing a doped passivation layer on the back side of a silicon wafer (1); and introducing a second reaction gas into the coating device, and directly or indirectly depositing an internal reflection layer on the surface of the doped passivation layer away from the silicon wafer (1). The described battery back passivation structure comprises a doped passivation layer and an internal reflection layer that are stacked on the back side of the silicon wafer (1), and has enhanced passivation capability.

The invention provides a PCB copper-clad plate pressing process, and relates to the technical field of electronic manufacturing, and the process comprises the following steps: S1, sampling a prepreg; s2, detecting the prepreg samples, recording TG values of all the samples, establishing a detection record table, and recording the TG value and detection conditions of each sample in detail; s3, the detected actual TG value is compared with the TG value of the prepreg factory identification, and the prepregs are classified and marked according to the comparison result; s4, batch processing is carried out on the prepregs with the TG values having deviation, so that the TG values of all the prepregs are restored to the factory state; and S5, after it is confirmed that the TG values of all the prepregs are restored to the factory state, setting specific parameters of the pressing machine according to pressing process parameters provided by a prepreg manufacturer. The PCB copper-clad plate pressing process aims at solving the key technical problems existing in the traditional process, and the stability of the pressing process and the reliability of the product are improved.

The application discloses a hyperbranched bio-based siloxane composite nano defoaming agent and a preparation method thereof, and belongs to the technical field of defoaming agents, and comprises, in parts by weight, 84-88 parts of star-shaped hyperbranched bio-based siloxane copolymer, 1.5-2.5 parts of rice husk ash source hydrophobic nano silicon dioxide, 3.0-4.5 parts of biological wax and 3.5-4.5 parts of bio-based emulsifier. The branched degree, the double bond content, the equivalent ratio of the silicon hydrogen addition functional group of the hyperbranched polyether and the particle size and hydrophobicity of the rice husk ash source hydrophobic nano silicon dioxide are limited, so that the dispersion stability, the rapid defoaming performance and the sustained defoaming performance of the defoaming agent are improved.

The invention belongs to the field of metal material machining, and discloses a GH4169 high-temperature alloy seamless tube and a production process thereof, and the GH4169 high-temperature alloy seamless tube is obtained through the steps of smelting, hollow ingot rough machining, hollow ingot solution treatment, blank finish machining, blank flaw detection, blank heating, pierced billet extrusion, pierced billet solution treatment, cold rolling and final cold rolled tube solution treatment. The tensile strength Rm of the seamless tube is larger than or equal to 635 MPa, the yield strength Rp0.2 is larger than or equal to 245 MPa, the percentage elongation after fracture A% is larger than or equal to 30%, the grain size is smaller than 4.0 level, and the intergranular corrosion rate in 65% boiling nitric acid is smaller than or equal to 1.2 mm / year. The production technology is low in energy consumption, high in material utilization rate, short in production process flow and short in machining period, and the finished pipe is high in size precision, few in pipe layering and cracks and suitable for machining of seamless pipes in the metal material machining industry.

The present invention relates to a positive electrode active material including: a lithium transition metal oxide which is in the form of a single particle and divided into a surface part and a core; and a coating part which is formed on the outer surface of the surface part and contains cobalt, wherein the surface part has a layered (R-3m) structure, and nickel included in the surface part has an average oxidation number of +2.36 to +3.00, and a method for producing the positive electrode active material.

The invention discloses a self-filling ultrasonic coupling agent probe assembly for muscle-bone ultrasound, and belongs to the field of muscle-bone ultrasound. Comprising a transmission cable, and one end of the transmission cable is fixedly connected with an ultrasonic device body. According to the coupling agent spraying device, through driving of the top material guide pump and the bottom material guide pump, a coupling agent can be automatically sprayed along the interior of the material storage box, manual spraying is not needed, and the spraying efficiency is improved; meanwhile, the coupling agent is stirred by the bottom stirring rod and the extension plate, so that the flowability of the coupling agent can be improved, the coupling agent can be more smoothly filled in a gap between the probe and the skin, the uniformity of the coupling agent is improved, and the effect of subsequently using an ultrasonic head for ultrasonic detection is improved; the coupling agent is stirred in advance, so that the layering or precipitation phenomenon of the coupling agent is reduced; the heated coupling agent can fill a small gap between the probe and the skin, the interference of air on sound wave transmission is reduced, and the definition and accuracy of images can be improved.