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136 results about "Crystalline particle" patented technology

: completely crystalline : made up wholly of crystals or crystalline particles —used of a rock (as granite)

Crystallization filtering device for chemical product processing

The invention provides a crystal filtering device for chemical product processing, and belongs to the technical field of chemical product production, the crystal filtering device comprises a rack and a mother liquor tank arranged in the rack, the interior of the mother liquor tank is rotatably connected with a rotary drum, the surface of the rotary drum is provided with filter cloth, and the interior of the rotary drum is uniformly provided with filter chambers in the circumferential direction; a first negative pressure pipe and a second negative pressure pipe are arranged in each filter chamber; a supporting cylinder is arranged at the upper end of the rack, the front end of the rotary drum is rotationally connected with the supporting cylinder, a distribution ring rotationally connected with the rotary drum is arranged in the supporting cylinder, and a liquid drainage assembly matched with the distribution ring is arranged in each filter chamber; part of liquid can be reserved in the filter chamber, crystal particles on the wall face and corners of the filter chamber are fully wrapped and discharged into the supporting cylinder through liquid flowing in the liquid discharging process, the risk that the interior of the filter chamber is blocked is reduced, and the number of times of shutdown cleaning is reduced.
Owner:SHANXI LIBOLONG NEW MATERIAL CO LTD

Ternary positive electrode material and preparation method thereof, positive electrode plate, secondary battery and electronic equipment

The invention provides a ternary positive electrode material and a preparation method thereof, a positive electrode plate, a secondary battery and electronic equipment, the ternary positive electrode material comprises crystal particles, the crystal particles comprise a first doping element, a second doping element and a third doping element, and the valence state of the first doping element is 1t; the valence state of the second doping element is lt; the valence state of the third doping element; the first doping element is distributed on the inner layer of the crystal particle, the second doping element is distributed on the middle layer of the crystal particle, and the third doping element is distributed on the shallow surface layer of the crystal particle. The ternary positive electrode material provided by the invention is beneficial to improving the high-temperature cycle performance of the secondary battery.
Owner:TIANJIN B&M SCI & TECH LTD

Metal ion micro-interface induced crystallization separation device and method in high-salinity wastewater

The present application relates to the technical field of high-salinity wastewater, and particularly relates to a device and a method for separating metal ions in high-salinity wastewater by micro-interface induced crystallization. The present application provides a device for separating metal ions in high-salinity wastewater by micro-interface induced crystallization, which comprises a cylinder, and a fluid mixing zone, a circulating granulation zone and a particle separation zone are sequentially arranged in the cylinder from bottom to top. The device for separating metal ions in high-salinity wastewater by micro-interface induced crystallization provided by the present application helps high-salinity wastewater to enter the upper space of the gas-liquid distributor at different speeds with the help of the differential-speed gas-liquid distributor; meanwhile, more crystalline particles are sent to the circulating granulation zone, the flow direction of the seed crystal in the circulating granulation is regulated, and the crystallization efficiency of the seed crystal is improved. The fluidization zone is designed to be wide at the bottom and narrow at the top, the cross-sectional area of the flow channel of the upper fluidization zone is increased, more sufficient reaction space is provided for the crystalline particles, the drag force of the fluid on the seed crystal particles is weakened, and the residence time of the crystalline particles in the upper fluidization zone is prolonged.
Owner:EAST CHINA UNIV OF SCI & TECH

Micro-LED device based on charge compensation method and preparation method thereof

The invention discloses a Micro-LED device based on a charge compensation method and a preparation method of the Micro-LED device, relates to the technical field of nano luminescent materials and display, and solves the problems that the luminous efficiency of the Micro-LED device is reduced, the driving voltage is increased, the service life of the device is shortened and the like due to reduction of the crystal size during Mn < 4 + > doped fluoride nanocrystalline through Mg < 2 + > charge compensation. The Micro-LED device sequentially comprises a driving substrate layer, a blue light Micro-LED array layer, a light extraction layer, a color conversion layer and a packaging layer from bottom to top; the light extraction layer is a titanium dioxide nanoparticle layer; the color conversion layer is a Micro-LED device formed by mixing a solution of dispersed silver silicon core shell-cesium sodium manganese fluoride composite nanomaterial Ag (at) SiO2 / Cs2NaF6: Mn < 4 + > and Mg < 2 + > nanocrystal particles with a methyl methacrylate solution and coating the mixture on a substrate. By introducing the Micro-LED color conversion layer based on the charge compensation method, lattice charge unbalance is neutralized, lattice defects are reduced, and formation of a Micro-LED device with high brightness and high stability is facilitated.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Urea solution storage device and storage method

The invention relates to the technical field of storage, in particular to a urea solution storage device and a urea solution storage method.The urea solution storage device comprises a tank body, the tank body is composed of a cylindrical barrel and a conical bottom, a liquid discharging pipe is arranged at the lowest point of the conical bottom, and the urea solution storage device further comprises a stirring mechanism and a liquid discharging mechanism, an upper discharging mechanism is coaxially arranged in the hollow pipe; and an aeration mechanism. A high-concentration area and a low-concentration area in the tank body can be mixed to form radial diffusion, so that urea molecules are uniformly dispersed, local concentration supersaturation is avoided, and the device can be regularly started and used in the storage tank; in the synchronous stirring process, the liquid is sucked from the bottom of the hollow pipe and diffused to the periphery from the top of the hollow pipe, so that an axial circulating flow field is formed, and no stirring dead zone exists in the tank body; the aeration mechanism is arranged, released bubbles can generate disturbance in the rising process, the surface tension of the solution is destroyed, the shearing force generated when the bubbles are broken can disperse tiny crystal particles, and the crystal particles are prevented from being agglomerated.
Owner:新疆准能投资有限公司

Preparation of crystalline pharmaceutical products

The present invention relates to crystalline particles of N-((S)-1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)-propan-2-yl)-5-(1-hydroxyethyl)-1H-pyrazol-3-carboxamide (I) having a specific surface area (SSA) in the range of from about 8 to about 16 m2 / g, preferably from about 10 to about 15 m2 / g, and to a process for preparing said particles. Compound (I) is potent androgen receptor (AR) modulators, which are useful as medicaments, for example in the treatment of prostate cancer.
Owner:ORION CORP(FI)

Multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile and preparation method thereof

ActiveCN121044927AChemical compositionGlaze
The invention discloses a multi-matrix three-dimensional distributed rainbow crystal grain ceramic tile and a preparation method thereof, and belongs to the technical field of architectural ceramics. The ceramic tile sequentially comprises a green body layer, a cover glaze layer, a pattern layer, a glue pattern layer, a rainbow crystal grain layer, a protective glaze layer, a transparent dry grain layer and a glue protective layer from bottom to top. The rainbow crystal grain layer is formed by mixing rainbow crystal grains and transparent dry grains according to a certain proportion, and the protective glaze layer is formed by mixing protective glaze and glue. The chemical components, the glazing amount and the grain composition of each layer are optimally designed. The preparation method comprises the steps of ceramic body preparation, multi-layer application, ink-jet printing, firing, subsequent treatment and the like. The technology aims at solving the contradiction of an existing imitation stone technology in simulation degree, performance and cost, and an industrial production scheme which is high in simulation degree, excellent in physical performance and environmentally friendly is provided.
Owner:FOSHAN JINDUO CERAMICS CO LTD +2

High drug-loading porous breviscapine spherulite and preparation method thereof

The application provides a high-drug-loading porous breviscapine crystal and a preparation method thereof. The crystal is prepared by a solvent diffusion method, does not contain auxiliary materials, and has high drug purity. The crystal is a highly porous, spherical, round, particle-size-controllable, large-particle-size crystal particle, and is easy to implement in an industrial scale. The process is green, and the crystal is crystallized in an aqueous solution. The solvents used can be recycled and reused. The porous breviscapine crystal prepared by the application has rapid in-vitro dissolution, improved flowability and compressibility, and is beneficial to further preparation molding.
Owner:YUNNAN UNIVERSITY OF CHINESE MEDICINE

Crystal processing method

The invention provides a crystal processing method which is used for processing equipment to cut a crystal, the processing equipment comprises a cutting tool and a bearing film, the method comprises the following steps: the crystal has a front surface and a back surface which are oppositely arranged, the front surface of the crystal is provided with a first protective layer bonded by wax, and the back surface of the crystal is provided with a second protective layer bonded by wax; forming a cut unit; the cut unit is bonded to the bearing film, and the bearing film is located on the back face of the cut unit; placing the bearing film adhered with the cut unit on processing equipment, and controlling a cutting tool to cut the cut unit to form cut particles; and taking down the bearing film and the protective layer on the cut particles to form crystal particles. The protective layers bonded by wax are arranged on the two surfaces of the crystal, so that the fracture resistance of the crystal in the cutting process can be remarkably enhanced, and edge collapse, fragmentation or internal micro-cracks generated in the cutting process of the crystal are greatly reduced, thereby directly improving the processing yield of crystal particles.
Owner:SHENYANG HEYAN TECH CO LTD

Ultrafine selenium powder preparation device

The utility model relates to a superfine selenium powder preparation device which comprises a gasification furnace, a connecting pipeline I is communicated with the gasification furnace, the other end of the connecting pipeline I is communicated with a vapor deposition furnace, a smoke exhaust port is formed in the top of the vapor deposition furnace, a discharge port is formed in the bottom of the vapor deposition furnace, and the superfine selenium powder preparation device further comprises a side blowing guide pipe. And a side blowing guide pipe is arranged beside the connecting pipeline I on the vapor deposition furnace. The device is simple in structure, low in cost and easy and convenient to operate, selenium steam is sufficiently and uniformly quenched by nitrogen, selenium powder products with consistent crystal granularity are obtained, the granularity of the prepared selenium powder can be applied to the high-end fields of photoelectricity, chemical medicine and the like, and uncrystallized selenium steam and impurities can be effectively recycled.
Owner:YUNNAN COPPER SCI&TECH DEV CO LTD

A device for separating and drying adipic acid dihydrazide crystals

This invention belongs to the technical field of adipic acid dihydrazide production equipment, specifically a crystallization, separation, and drying device for adipic acid dihydrazide. It includes a base, a support fixedly connected to the left side of the top of the base, a drying mechanism fixedly connected to the right side of the top of the base, a stirring tank fixedly connected to the inner side of the support, a stirring mechanism fixedly connected to the top of the stirring tank, and a crystallization cylinder fixedly connected to the lower part of the stirring tank. During crystallization, the stirring motor is activated, causing the rotating shaft to drive the spiral blades to slowly rotate clockwise, scraping away the crystals on the inner wall of the cylinder. This prevents the crystals from agglomerating into large clumps, ensuring more uniform crystal particles. Furthermore, the absence of crystals adhering to the inner wall of the cylinder improves heat exchange efficiency, accelerates the crystallization speed, and ensures that adipic acid dihydrazide can fully crystallize.
Owner:WEIFANG FENMEI CHEM CO LTD

Wire rod having excellent drawability, and manufacturing method therefor

To provide a machine structure wire rod applicable to automobiles, construction components, and the like, and a manufacturing method therefor, and to provide a wire rod having excellent drawability, and a method for manufacturing the same.SOLUTION: The present invention is a wire rod which, in weight%, consists of C: 0.8-1.2%, Si: 0.01-0.6%, Mn: 0.1-0.6%, Cr: 0.8-2.0%, Al: 0.01-0.06%, N: 0.02% or less (excluding 0), with the remainder being Fe and inevitable impurities, wherein a microstructure includes proeutectoid cementite in a pearlite main structure, includes 20 or more AlN having an average particle size of 30 nm or less per unit area (μm2), and includes a microstructure satisfying the following relational expression 1, wherein [Relational Expression 1] is [(average size of block crystal grains(μm))2 / (length of proeutectoid cementite(μm / 1200 μm2))≤0.5].SELECTED DRAWING: Figure 1
Owner:POHANG IRON & STEEL CO LTD

Gas ion gun

A gas ion gun includes an anode electrode to remove electrons from a gas in order to create gas ions. The anode electrode includes a wire made of an electrical conductive material or of a semiconductor material, the wire extending along a longitudinal axis from a proximal end to a flattened distal end. The anode electrode further includes a crystal particle directly deposited on the flattened distal end, the electrical conductivity of the crystal particle being ten times smaller than the electrical conductivity of the wire.
Owner:CENT NAT DE LA RECH SCI (C N R S) +1

Core-shell support, method for its production, catalyst for exhaust gas purification using the core-shell support, method for its production, and method for exhaust gas purification using the catalyst for exhaust gas purification

Core-shell support, comprising: a core comprising at least one oxygen storage / release material selected from alumina-doped ceria-zirconia-based solid solutions; and a shell comprising a rare earth zirconium oxide-based composite oxide represented by a composition formula: (R 1-x Ce x )2Zr2O 7+x , where R represents a rare earth element which is at least one element selected from the group consisting of La, Nd, Pr, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc and Y, and x represents a number from 0.0 to 0.8, and with which an outer side of the core is coated, wherein the rare earth zirconium oxide-based composite oxide contains crystal particles having a pyrochlore structure, and the composite oxide based on rare earth zirconium oxide has an average crystal diameter of 3 to 9 nm, wherein an amount of the rare earth zirconium oxide-based composite oxide forming the shell is 4 to 24 parts by mass based on 100 parts by mass of the at least one oxygen storage / release material forming the core.
Owner:TOYOTA JIDOSHA KK

A high-salinity water and superheated steam vacuum spray flash evaporation device

The application provides a high-salt water and superheated steam vacuum spray flash evaporation device, and belongs to the technical field of high-salt water treatment, which comprises a flash evaporation box body, a salt water spraying assembly, a steam spraying pipe, a mesh barrier assembly, a first driving assembly and a second driving assembly, the salt water spraying assembly extends from the top of the flash evaporation box body to the inside of the flash evaporation box body and is used for spraying high-salt water into the inside of the flash evaporation box body in a conical state, the steam spraying pipe extends from the bottom of the flash evaporation box body to the inside of the flash evaporation box body and is used for spraying high-temperature steam into the inside of the flash evaporation box body in a conical state, and the mesh barrier assembly is arranged in the inside of the flash evaporation box body and is used for shielding salt-containing crystalline particles that float with steam. Compared with the prior art, the embodiment of the application can effectively avoid that high-temperature steam carries a small amount of fine salt-containing crystalline particles out of the flash evaporation box body, avoids the loss of salt-containing crystalline particles, and improves the collection efficiency of salt-containing crystalline particles.
Owner:BOHAI HONGSHUO (LIANYUNGANG) CLEAN TECH CO LTD

Bimetal sulfide as well as preparation method and application thereof in gas-phase arsenic removal

The bimetallic sulfide crystal provided by the invention is small in particle and developed in intergranular gap, the bimetallic sulfide has enough active sites and sulfur vacancies under the optimal palladium-iron ratio (the molar ratio of palladium to iron is 1: 1), the arsenic capture rate of 90% can be kept within 100 minutes, and the bimetallic sulfide has a good arsenic capture rate under the condition of lower than 100 DEG C, and the arsenic capture rate of 90% can be kept within 100 minutes. And a relatively good arsenic removal rate (70-90%) can still be kept, so that a scientific basis is provided for development of a novel arsenic pollution control technology, and powerful support is provided for flue gas arsenic purification in a non-ferrous metal smelting process.
Owner:ANQING NORMAL UNIV

Use of nanocrystals for drug delivery from a balloon

A drug delivery balloon (10) has a drug thereon in the form of crystalline particles (12), the drug having a predetermined size distribution. Optionally marker particles (14, 16) are also provided. A texturized coating (18), a cap layer (20) and / or other methods may be used to increase particle loading capacity of the balloon.
Owner:BOSTON SCIENTIFIC SCIMED INC

Tubular reactor unit and system

The present invention discloses a tubular reactor unit and system, which is particularly used for gas-liquid-solid multiphase reactions, accompanied by crystal particle products, and the reaction conditions involve high temperature and high pressure reactions. The reactor mainly includes a jet mixer, a tubular reactor, a gas-liquid separation buffer tank, a circulation pump, and a crystal crusher. Under the action of the circulation pump, the mother liquor circulates in the tubular reactor and the gas-liquid separation buffer tank to control the flow state and residence time. The tubular reactor is a coil-type jacketed reactor with a heat exchange function, and the jet mixer has the characteristics of multiple input ports and microbubble generation function. The crystal crusher can fully crush the crystal particles in the circulating mother liquor. The present invention adopts a combination of local single circulation and global multi-circulation, combined with microbubble generation technology, in-tube turbulence technology, and grain crushing technology, which greatly shortens the length of the traditional tubular reactor and can achieve fully enclosed, continuous, high conversion rate, and rapid production.
Owner:CHENGDU ZHONGKE PURUI PURIFYING EQUIP

Process for making solid-dissolvable composition

A process for preparing a solid dissolvable composition comprising perfume capsules dispersed in a crystalline mesh. The crystalline mesh comprises a relatively rigid, three-dimensional, interlocking crystalline skeleton framework of fiber-like crystalline particles formed from crystallizing agents. The process for preparing the solid-dissolvable composition starts with dissolving the crystallizing agent in the perfume capsule slurry (optionally with a small additional amount of aqueous phase), next forming the product stream into the required size and shape for the solid dissolvable composition, and then drying the solid dissolvable composition to the final composition.
Owner:PROCTER & GAMBLE CO

Cleaning solution for perovskite-coated cutting tool and cleaning method and cleaning solution device for cutting tool

This invention discloses a cleaning solution and a cleaning method and device for perovskite coating cutters. The cleaning method for the coating cutter includes the following steps: controlling the coating cutter to descend until the lip tip is completely submerged below the surface of the cleaning solution in the immersion tank; controlling the liquid supply pump to repeatedly draw in and expel the cleaning solution at high frequency, rapidly dissolving and removing crystalline particles from the cutter and its internal cavity, resulting in a clean and residue-free cutter. This invention uses a cleaning solution with the same properties as the perovskite coating solution used in the production process to repeatedly rinse the coating cutter at high frequency. On one hand, cleaning with the cleaning solution can effectively remove crystalline blockages from the cutter's slit channels and lip, improving coating quality and stability; on the other hand, cleaning with the cleaning solution can achieve online cleaning, eliminating the need for manual disassembly and assembly of the cutter, avoiding cross-contamination, reducing downtime, and improving coating efficiency.
Owner:CHANGZHOU S C EXACT EQUIP

Deposition device and method for crystal particles in flowing liquid lead-bismuth alloy

The invention discloses a device and a method for depositing crystal particles in flowing liquid lead-bismuth alloy. The device comprises a particle deposition tank, liquid lead-bismuth alloy and corrosion product powder are loaded in the tank, and an extraction opening, a sampling opening and a stirring opening are formed in a top cover of the particle deposition tank; a first purification opening and a second purification opening are formed in the lower part of the tank body; the vacuum pump is communicated with the extraction opening; a machine body of the stirrer is fixedly mounted on the stirring opening, and a transmission shaft of the stirrer penetrates through the stirring opening and is arranged in the particle deposition tank; one part of the deposition system penetrates through the stirring opening and is arranged inside the particle deposition tank, and the other part of the deposition system is arranged outside the particle deposition tank; and the two ends of the lead-bismuth purification system communicate with the first purification opening and the second purification opening correspondingly. Efficient directional deposition and mixing of corrosion product powder in the liquid lead bismuth alloy are achieved, the electric heating wire and a deposition system are combined, the experiment temperature, the oxygen control environment and the cooling water flow are accurately controlled, and the stability of experiment conditions is ensured.
Owner:ZHEJIANG SCI-TECH UNIV

Granulation method of rare earth halide crystal powder

The invention discloses a granulation method for rare earth halide crystal powder. A used granulation device comprises vacuum equipment, granulation equipment and drying equipment, comprising the following steps: vacuumizing the interior of a vacuum cavity; the rare earth halide crystal powder is conveyed into granulation equipment, after being stirred by a stirring device for 10-30 min, the rare earth halide crystal powder enters a gap between a first extrusion roller and a second extrusion roller, the pressure applied to the rare earth halide crystal powder by the first extrusion roller and the second extrusion roller is 70-180 kN, and a rare earth halide crystal particle precursor is formed; and drying the rare earth halide crystal particle precursor in drying equipment at 120-300 DEG C to obtain the rare earth halide crystal particles. According to the granulation method, the rare earth halide powder can be prevented from absorbing water in the granulation process, so that the rare earth halide particles with low water content are obtained.
Owner:BAOTOU RESEARCH INSTITUTE OF RARE EARTHS +1

Crystal particle screening device for erythritol production

The utility model discloses a crystal particle screening device for erythritol production, which comprises a mounting bottom plate, a supporting plate mounted at the top end of the mounting bottom plate, a screening box supported at the top end of the supporting plate, a dispersing box mounted at the top end of the screening box, a material guiding box mounted at the top end of the dispersing box, and a material distributing motor mounted at one end of the material guiding box. A rotating rod is installed on one side of the material distributing motor, a material guiding opening is formed in the dispersing box, a material distributing cone is installed in the material guiding opening, a first screening plate is installed in the screening box, a driving motor is installed at one end of the screening box, a motor driving shaft is installed at one end of the driving motor, and a second screening plate is installed at the bottom end of the first screening plate. A material storage bin is formed in the material guide box, and material distribution blades are installed on the outer wall of the rotating rod. According to the erythritol screening device, erythritol entering the screening box is dispersed before screening, and the situation that due to the fact that a large amount of erythritol enters the screening box at the same time, screening is not uniform is avoided.
Owner:CHUZHOU RUIFEN BIOTECHNOLOGY CO LTD

Bio-based multimodal crystalline particle reflective thermal barrier waterproofing coating, additives, and methods of making

This invention discloses a bio-based multi-peak crystalline particle reflective thermal insulation and waterproof coating, additives, and preparation method, belonging to the field of building chemical materials and green energy-saving coating technology. The system uses organosilicon-modified acrylic emulsion as a base material, combined with a specific pigment composition, hollow glass microspheres, bio-based hydrophobic multi-peak crystalline particles, additives, and water. The core of this invention lies in introducing polyhydroxyalkanoate powder with multi-peak particle size distribution and high crystallinity, and constructing a weather-resistant protective layer on its surface through a dry synergistic pretreatment with hindered amine light stabilizers, ultraviolet absorbers, and nano-zinc oxide. This coating achieves a balance between environmental protection and long-lasting performance: it not only possesses excellent dense waterproofing and mechanical properties, but also achieves superior high-temperature anti-leveling characteristics by constructing a stable surface micromorphology. The deep synergy between the weather-resistant layer and the thermal insulation system significantly enhances the coating's anti-aging ability, endowing it with durable high solar reflectivity and excellent dust and stain resistance.
Owner:DU BAI CHENG NEW MATERIAL TECH (SHANGHAI) CO LTD +4

A circulating crystallization granulation solid-liquid separation fluidized bed system

The application provides a circulating crystallization granulation solid-liquid separation fluidized bed system and relates to the technical field of water treatment. The fluidized bed system comprises a fluidized bed, a flocculation device for stirring high-suspension raw water and sludge particles to move, forming a sludge-water mixture with crystalline particles and liquid, the sludge-water mixture entering a suspension zone to form a sludge suspension layer and suspension zone produced water, a negative pressure device for generating negative pressure to make sludge particles in a sludge zone enter a flocculation cavity, make the sludge-water mixture enter the suspension zone and make the suspension zone produced water enter the filtration zone, a raw water supply device for conveying high-suspension raw water into the flocculation cavity, an adjusting device for adjusting the amount of sludge particles entering the flocculation cavity, a filtration device for filtering the suspension zone produced water to generate clean water and a fluid control device for sending the suspension zone produced water into the filtration zone and leading out the clean water. The application solves the problem of serious abrasion of subsequent sludge conveying power equipment caused by the addition of micro sand in the crystallization granulation process in the prior art.
Owner:国能水务环保有限公司

A method, apparatus, device, and medium for safety measurement of a multiphase flow pipeline

PendingCN122171623AWeather/light/corrosion resistanceParticle size analysisElectric impedance spectroscopyImpedance spectrum
The application discloses a safety measurement method, device and equipment of a multiphase flow pipeline and a medium, relates to the technical field of oil exploitation, and comprises the following steps: applying an alternating excitation signal to different electrode systems arranged on a target pipeline to obtain first electric impedance spectrum data and second electric impedance spectrum data of the target pipeline in a multiphase flow state. The first electric impedance spectrum data is converted into a complex dielectric constant, and a relaxation frequency is determined from the complex dielectric constant; according to the relationship between the relaxation frequency and the particle size, the crystal particle size is determined. According to the crystal particle size and the erosion time, the erosion loss is determined. The equivalent circuit model matched with the second electric impedance spectrum data is fitted to determine the corrosion characteristics. Based on the electric impedance spectrum technology, the accurate measurement of the particle size and the erosion corrosion of two scenes is realized, the method has the characteristics of simple operation, non-invasiveness and high measurement precision, and the safety transportation of the two-phase flow pipeline is ensured.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Fire pump die-casting equipment

The invention relates to the related technical field of water pump die casting, in particular to fire pump die casting equipment which comprises a lower die, an upper die is mounted at the top of the lower die, a pressing block is mounted at the bottom of the upper die, a die casting cavity is formed in the top of the lower die, an adjusting mechanism is mounted on the outer side of the lower die, and a cavity is formed in the inner wall of the lower die; the driving part and the vibration assembly are arranged and used for transmitting vibration force to the lower die before die casting, so that the vibration force can act on melt in the solidification process, ordered arrangement of molecules is promoted, crystalline particles are refined, internal pores and stress concentration are reduced, on the other hand, the problem of insufficient filling caused by high-pressure and high-speed injection can be avoided, and the production efficiency is improved. The motor is used for adjusting the direction of the impact block, vibration force is transmitted to the bottom of the push rod so that formed materials can be separated from the inner wall of the die-casting cavity, the push rod can be pushed to slide upwards on the inner wall of the through hole to be used for ejecting materials, and convenience of taking out the materials is improved.
Owner:高邮市顺威消防科技有限公司

Additive for increasing crystal granularity of calcium hydrophosphate and application of additive

The invention discloses an additive for increasing the crystal size of calcium hydrophosphate and application of the additive, and belongs to the technical field of inorganic chemical industry. According to the additive for increasing the crystal granularity of the calcium hydrophosphate, the additive is at least one of cetylpyridinium bromide, cetyltrimethylammonium bromide and dodecyl benzyl dimethyl ammonium bromide. In addition, the invention also provides an application of the additive in increasing the crystal particle size of calcium hydrophosphate. The additive for increasing the crystal granularity of the calcium hydrophosphate, provided by the invention, can increase the granularity of the calcium hydrophosphate by more than 50%.
Owner:WUHAN INST OF TECH

Ceramic-based oil-water separation membrane, and preparation method and application thereof

This invention belongs to the field of membrane separation technology, and provides a ceramic-based oil-water separation membrane, its preparation method, and its application. This invention utilizes Ti3C2T... x Particles are peeled into sheets of Ti3C2T x Next, ZIF-62 was synthesized in situ on Ti3C2T sheets. x In the Ti3C2T, ZIF-62... x The interlayer acts as a pillar support, stabilizing Ti3C2T. x Interlayer spacing to prevent Ti3C2T x Excessive expansion in aqueous solution improves separation performance; then ZIF-62 / Ti3C2T x Calcination is performed on ZIF-62 / Ti3C2T. x The ZIF-62 crystal grains in the glass were vitrified to obtain a g ZIF-62 enhances its performance on lamellar Ti3C2T. x The supporting effect of the columns and the stability of the interlayer spacing. Then, regarding a... g ZIF-62 / Ti3C2T x The modification enhances the surface wettability of the ceramic-based oil-water separation membrane, thereby improving its oil-water separation performance.
Owner:INNOVATION CENTER OF YANGTZE RIVER DELTA ZHEJIANG UNIVERSITY

Correction amount determination device, method, recording medium, and jig

Provided is a correction amount determination device, method, recording medium, and jig. A correction amount determination device (300) includes: a diffraction data storage section (310) that stores diffraction data obtained by irradiating a standard sample that is an aggregate of crystal particles that are isotropic and free of strain with X-rays, the diffraction data including a combination of a diffraction angle of the irradiated X-rays with respect to a sample rotation angle and a sample surface height; a correspondence relationship determination section (320) that determines a first correspondence relationship based on the diffraction data; and a correction amount determination section (330) that determines a correction amount of the sample surface height with respect to a desired sample rotation angle and diffraction angle by a first function.
Owner:RIGAKU CORP