21results about How to "Less attractive" patented technology

The present application provides an ejector, a processing device, and a cleaning device, which can suppress a decrease in suction force in a case where liquid intrudes into the inside of the ejector and inexpensively perform processing or cleaning of an object to be processed. The ejector generates a suction force, the ejector having: an inflow pipe having a plurality of openings formed at a front end thereof from which a drive fluid is ejected; an outflow pipe having a receiving port that receives the drive fluid ejected from the openings at a position opposite to the front end of the inflow pipe; and a main body portion that surrounds around the openings and the receiving port, having a suction passage that suctions an external fluid to the inside.

The present invention belongs to the technical field of fabric treatment agents, and particularly relates to a low-temperature resistant fabric treatment surfactant and a preparation method thereof. A cationic surfactant 1 is prepared by using epichlorohydrin, modified silicone oil and dibasic acid as raw materials, and further compounded with carboxyethyl thiosuccinic acid to obtain a low-temperature resistant fabric treatment surfactant. The polysiloxane molecular chain contained in the prepared cationic surfactant 1 can effectively reduce the static friction coefficient between fabric fibers, making the fabric soft and smooth; the introduced ester group makes the prepared surfactant have lower irritation and higher biodegradability; on the other hand, the addition of carboxyethyl thiosuccinic acid can quickly soften paraffin under low temperature conditions, destroy the continuous wax film layer on the surface of the fabric, so that the prepared surfactant obtains a relatively excellent fabric treatment effect under low temperature conditions.

This invention relates to the field of ceramic composite metal casting technology, and discloses a method and apparatus for producing ceramic composite iron-based wear-resistant castings. The production method involves treating ceramic particles with decontamination, coarsening, sensitization, activation, and chemical plating to obtain modified ceramic particles; mixing and stirring the modified ceramic particles and a coating material to obtain a ceramic preform; fully heating the ceramic preform; then removing it and placing it into a mold cavity to obtain a mold; heating the mold in a tank; pouring molten iron after heating; and cooling after casting to obtain the ceramic composite iron-based wear-resistant casting. This invention also discloses a production apparatus for ceramic composite iron-based wear-resistant castings. This invention, employing the above-mentioned method and apparatus for producing ceramic composite iron-based wear-resistant castings, promotes the composite of ceramic and molten metal from a casting process perspective, ensuring that the molten metal can penetrate the fine pores of the ceramic preform, resulting in a good interface bonding between the high-chromium cast iron and ceramic particles, without unbonded or microscopic gaps.

The present invention relates to the technical field of asphalt regeneration, and in particular to an asphalt regeneration agent and a preparation method thereof, wherein the asphalt regeneration agent is composed of the following raw materials: 45-55 parts of purified waste oil, 10-15 parts of furfural emulsified oil, 10-15 parts of methyl carbamate, 10-15 parts of waste rubber powder, 3-6 parts of mica powder, and 2-4 parts of modified fiber. The present invention firstly uses waste oil as the main preparation raw material to achieve the reuse of waste resources and effectively reduce costs; secondly, the original system of aged asphalt is broken through the emulsification effect of furfural emulsified oil and the polar effect of methyl carbamate, so that components such as waste oil, furfural extracted oil, and mica powder are redissolved, and the proportion of each component is rebalanced, while improving the stability and strength of the regenerated asphalt.

The utility model relates to an airport deinsectization device which comprises a top plate 10, a containing box 20, a deinsectization lamp 30 and a deinsectization cage 40, the deinsectization lamp is installed on the top plate 10, the containing box 20 is arranged below the top plate 10, and the deinsectization cage 40 is arranged between the top plate 10 and the containing box 20. The insect killing lamps comprise a black light insect killing lamp with the wavelength of 320 nm to 390 nm, a blue light insect killing lamp with the wavelength of 350 nm to 490 nm, a yellow light insect killing lamp with the wavelength of 625 nm to 670 nm, a green light insect killing lamp with the wavelength of 555 nm to 610 nm and a red light insect killing lamp with the wavelength of 500 nm to 565 nm. The insecticidal lamp can meet the insecticidal requirements in most time periods and attract and kill various insects. A metal structure is adopted, fire risks can be avoided, a stable support and a connecting structure are adopted, and hidden dangers such as FOD are reduced.

The invention belongs to the technical field of battery materials, and discloses a diaphragm as well as a preparation method and application thereof. The diaphragm comprises a base membrane and a coating on the surface of the base membrane, and the coating comprises PVDF, a ceramic material and a water absorption additive. The coating in the diaphragm contains a specific amount and a specific type of water-absorbing additive, so that the static electricity of the diaphragm is eliminated or reduced. According to the preparation method of the diaphragm, the oil-based diaphragm for eliminating static electricity is prepared by controlling specific environment humidity and adding a specific amount and a specific type of water-absorbing additive. According to the diaphragm for eliminating static electricity, the attraction between the diaphragm and a pole piece caused by static electricity can be reduced, the wrinkling of the pole piece is reduced, and the safety of a battery cell is improved.

The invention relates to the technical field of lamps, in particular to a dimmable LED high ceiling lamp which comprises a support transverse plate and an installation disc arranged on the support transverse plate, a plurality of installation protruding blocks are arranged on the outer side wall of the installation disc, and clamping installation mechanisms are arranged in the installation protruding blocks. The clamping installation mechanism comprises a self-locking piece arranged in the installation protruding block in a sliding mode, the contact end of the self-locking piece is arranged in a beveling mode, and a pressing spring is fixedly connected to the outer side wall of the self-locking piece. In this way, clamping installation of the whole high ceiling lamp body and the top installation piece is completed, the whole installation process is simple and efficient, the fastening effect of clamping installation cannot be reduced along with the increase of the service time, and the use safety of the whole high ceiling lamp body can be guaranteed.

The utility model discloses a biomass fuel particle crusher which comprises a box body, a crushing roller assembly is arranged in the box body, a drainage assembly is arranged below the crushing roller assembly, a metal impurity removing mechanism is arranged below the drainage assembly, and particles crushed by the crushing roller assembly can fall on a first drainage plate. The particles flow into the first drainage plate and flow into the high-position end of the second drainage plate along the first drainage plate, the particles flowing into the high-position end of the second drainage plate can flow onto the roller along the second drainage plate and fall off from one side of the roller, meanwhile, metal impurities in the particles can be attracted to the outer wall of the roller under the attraction effect of the magnet block, and the roller can be driven by the driving device to rotate. Metal impurities adsorbed on the outer wall of the roller are conveyed to the other side of the roller, when the metal impurities are conveyed to the other side of the roller, the attraction force of the magnet blocks to the metal impurities is reduced, the metal impurities can fall off from the other side of the roller under the action of the gravity of the metal impurities, and then the metal impurities in particles can be separated out so as to prevent the metal impurities from affecting subsequent granulation treatment.

The utility model discloses an air outlet device and relates to the technical field of air blowing equipment, the air outlet device comprises an air outlet main body, a mounting column and two fan assemblies, an air outlet channel is formed in the air outlet main body, and an air inlet and an air outlet which are communicated with the air outlet channel are respectively formed in two ends of the air outlet main body; the mounting column is arranged in the air outlet channel, a center hole is formed in the mounting column, a supporting piece is arranged on the periphery of the mounting column, and the supporting piece is connected with the channel inner wall of the air outlet channel and divides the mounting column into a first mounting section and a second mounting section; the draught fan assembly comprises draught fans and fan blades, each draught fan comprises a stator and an outer rotor, the outer rotor is rotatably arranged on the periphery of the stator in a sleeving mode, the fan blades are connected to the outer rotor, the stator of one draught fan is connected to the periphery of the first installation section in a sleeving mode, and the stator of the other draught fan is connected to the periphery of the second installation section in a sleeving mode. According to the technical scheme provided by the utility model, the air outlet device can keep large air volume for air outlet, and the practicability and the reliability of the air outlet device are further improved.

The invention provides a P2 type sodium ion battery positive electrode material and a preparation method thereof, the P2 type sodium ion battery positive electrode material is of a core-shell structure and comprises a NaaNixMn2xGdyBazO2 material as a matrix core and a conductor coating layer coating the surface of the matrix core material, the conductor coating layer material is a mixture of Ti (HPO4) 2 and MgHPO4, 0.6 < = a < = 0.7, 0.005 < = y < = 0.02, 0.001 < = z < = 0.01, and 3x + y + z = 1. The P2 type sodium ion battery positive electrode material has excellent rate capability and cycle performance under high voltage.

The present invention belongs to the technical field of mobile robot path planning, and provides a robot path planning method and system based on a dynamic update mechanism ant colony algorithm. The method includes obtaining the robot's task environment, rasterizing it, obtaining a raster map, determining the robot's starting node, target node, nodes that are prone to deadlock, and obstacle nodes; planning the robot's path based on the dynamic update mechanism ant colony algorithm; the initial taboo list of the dynamic update mechanism ant colony algorithm stores the robot's starting node, target node, nodes that are prone to deadlock, and obstacle nodes; when all ants complete an iteration, the optimal path is saved, and the pheromone volatility coefficient, pheromone concentration, and taboo list are dynamically updated until all iterations are completed to obtain the optimal path.

The invention relates to an electrolyte, a battery and electric equipment. The electrolyte comprises an infiltration additive, the infiltration additive is polyether, and the end group of the infiltration additive comprises bis (trimethylsiloxy) methylsilyl.

The invention relates to polyimide slurry and a polyimide film which can be coated on a glass substrate and amorphous silicon glass used by an integrated passive device, and a preparation method of the polyimide slurry and the polyimide film. The preparation of the polyimide slurry comprises the following steps: mixing dianhydride, aromatic carboxylic acid and diamine in an organic solvent, reacting at room temperature, reacting the obtained polyimide prepolymer solution under a heating temperature condition, cooling, adding the organic solvent again, and fully stirring to obtain the polyimide slurry; wherein diamine comprises a main monomer and an auxiliary monomer, the main monomer is aromatic diamine, and the auxiliary monomer is aromatic diamine containing a trifluoromethyl group; and coating the prepared polyimide slurry on a flat plate, carrying out gradient curing in a nitrogen or argon atmosphere, finally cooling to room temperature, and stripping to obtain the polyimide film. The film prepared by the method has good thermal performance, mechanical performance and smoothness.

The invention discloses a functional hydrophilic coating as well as a preparation method and application thereof, and relates to the technical field of antifouling surface coating films. The functional hydrophilic coating is composed of an adhesion layer serving as a substrate layer, a catalytic nano-particle layer growing on the adhesion layer in situ through a coordination reaction and a low-surface-energy perfluorosilane domain layer covering the catalytic nano-particle layer, and catechol groups are distributed on the adhesion layer. The obtained functional hydrophilic coating has a firm structure, can still keep the integrity after 150 times of cyclic friction tests, also shows excellent and wide antifouling performance, and successfully inhibits more than 98% of oil adhesion, protein adsorption and biological fluid pollution.

The utility model relates to the technical field of medical instruments, in particular to a fetal head suction device for delivering a fetus. The suction cup comprises a suction cup assembly and an air guide assembly. The suction cup assembly comprises a bowl-shaped first suction cup and a bowl-shaped second suction cup, the second suction cup is installed in the first suction cup, and the front end of the second suction cup is connected with the inner wall of the first suction cup. The first suction cup and the second suction cup are symmetrically divided into four suction areas by taking the transverse center line and the vertical center line of the first suction cup as the symmetry; a plurality of first through holes are formed in the inner wall of the first suction cup, a plurality of second through holes are formed in the side wall of the second suction cup, and the first through holes and the second through holes are evenly located in the four suction areas respectively. According to the fontanel suction cup, the first suction cup and the second suction cup are arranged, the fontanel suction cup can powerfully suck the peripheries of a front fontanel and a rear fontanel of a fetus respectively, meanwhile, the fontanel and the rear fontanel of the fetus are slightly sucked, and therefore the skull of the fetus is prevented from being injured.

The present invention belongs to the technical field of functional genes and plant gene breeding, and discloses a gene encoding MET1 methyltransferase and its application in inducing cucumber aphid resistance breeding. The present invention has found that the gene CsMET1 encoding cucumber DNA methyltransferase is involved in aphid stress response. Through research, it is found that the RNAi transgenic plants of CsMET1 show rich trait variation. Non-selective settlement experiments and simple life tables also show that CsMET1-RNAi gene silenced plants have a richer range of variation than their wild-type traits, indicating that the CsMET1 gene is involved in the response regulation of cucumber aphid stress. It is conducive to the breeding of cucumber insect-resistant germplasm resources, breeding superior materials, and providing new ideas for genetic breeding; and enriching the aphid stress gene pool, providing a new direction for aphid resistance genetic engineering.

The invention relates to the technical field of electrochemical energy storage, in particular to an interface optimization type material, a preparation method and application thereof, a preparation method of a positive electrode material, a positive electrode plate and a zinc ion battery. The interface optimization type material comprises polyaniline and manganese oxide; wherein the polyaniline is coated on the surface of the manganese oxide to form a polyaniline layer, and a Mn-N bond is formed between the polyaniline and the manganese oxide. Mn-N bonds formed between polyaniline and manganese oxide can effectively inhibit the dissolution of manganese and prevent the structure collapse of the manganese oxide in the circulation process, so that the circulation stability of the manganese oxide positive electrode is remarkably improved. Bipolar polyaniline has oxidation and reduction units, can serve as a pH buffer and a local proton storage device, and greatly promotes embedding of protons rather than zinc ions, so that generation of ZnMn2O4 and irreversible deposition of dead manganese are inhibited, and a high-energy long-life aqueous zinc-manganese battery based on a reversible MnO2 / Mn < 3 + > and MnO2 / Mn < 2 + > dual energy storage mechanism can be constructed.

The utility model relates to magnetic filter technical field, and disclose a kind of magnetic adsorption type filter screen, including filter jar, and the detachable connection of filter jar has jar cover, the side surface of the jar cover is fixedly connected with several limit plates, and the fixed connection of filter jar has the fixing mechanism for fixing limit plate, the lower surface of jar cover is fixedly connected with four extruding rods in circumferential array, and the inner wall of filter jar is fixedly connected with annular plate, and filter mechanism is placed on annular plate, and the lower surface of jar cover is fixedly connected with several inner thread tubes one, and the outer wall of inner thread tube one is provided with thread groove, and adsorption subassembly is threadedly connected on inner thread tube one, and protective assembly is threadedly connected on thread groove, and cleaning assembly for cleaning filter mechanism is installed on jar cover. The utility model can also be quickly unloaded after filter jar is taken down, and the impurities adhered on the inner wall of filter jar are cleaned thoroughly. It can also quickly take down protective barrel, and clean ferromagnetic impurities.

The invention discloses a preparation method of cellulose / nano-zinc oxide composite aerogel, and belongs to the field of functional materials. The preparation method comprises the following steps: modifying nano zinc oxide with a silane coupling agent, and dissolving cellulose in a pre-cooled aqueous solution of sodium hydroxide and urea to obtain a cellulose solution; adding the modified nano-zinc oxide particles into a cellulose solution in a stirring state to obtain a cellulose / nano-zinc oxide mixed solution, then performing directional freezing, replacing the formed gel with ethanol, and washing with deionized water to remove redundant solvent until the pH value is equal to 7 to obtain the cellulose / nano-zinc oxide composite hydrogel. And drying in a freeze dryer to obtain the cellulose / nano-zinc oxide composite aerogel. The interior of the prepared aerogel has an orderly-arranged directional pore structure, and the aerogel has the advantages of being good in mechanical property, hydrophobic property and heat-insulating property.

A magnetic device, comprising a cup body (l), a tea container (2), and a cup cover (3), the cup lid (3) comprises an upper lid (31) and a lower lid (32); the cup cover (3) is provided with a tea container separation mechanism (4); the tea container separation mechanism (4) comprises a force-receiving block (4l) and a separation magnet (42); the separation magnet (42) is installed on the force-receiving block (4l); the force-receiving block (4l) changes the relative position between the separation magnet (42) and the cup cover (3) under force; the inner center of the tea container (2) is provided with a sealed magnetically attractable metal (21); the tea container (2) attracts the magnetically attractable metal (21) to the center of the bottom of the cup cover (3) by means of the separation magnet (42); the separation magnet (42) is kept away from the magnetically attractable metal (2l) by changing the relative position of the force-receiving block (41), and the attraction force of the separation magnet (42) attracting the magnetically attractable metal (21) is less than the gravity of the tea container (2) after being reduced, and the tea container (2) falls to the bottom of the cup body (l) under the action of gravity to start making tea. The magnetic device has a simple structure, is convenient to use, has good stability, can adjust the concentration of tea, and solves the problem that in traditional technology, the concentration of tea cannot be adjusted, and when the cup cover (3) is used in conjunction with the opaque cup body (1), the soaking and attraction states of the tea container (2) cannot be reflected.