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130results about How to "Various preparation techniques" patented technology

Tungsten nitride based ternary nano composite super-hard film material and preparation method thereof

The invention discloses a tungsten nitride based ternary nano composite super-hard film material and a preparation method thereof. The material is a nano composite super-hard film which is covered on a substrate and has a chemical formula of WxM1-xN, wherein in the nano composite super-hard film, W represents tungsten metal, M represents metal replacement, N represents nitrogen, and the value range of the x is 0.06 to 0.72; and the film consists of the tungsten metal, nitride solid solution phase of the M metal and tungsten metal phase or consists of tungsten nitride phase, tungsten metal phase and M metal phase, the grain size of the film is 4 to 30 nanometers, and the thickness of the film is 3 to 7mu m. The method comprises the following steps: firstly, placing a composite target consisting of the tungsten metal and the metal replacement and the substrate on a cathode and in a sample stage in a vacuum chamber of magnetron sputtering equipment respectively; after the vacuum degree of the vacuum chamber is less than or equal to 1*10<-3> pa and the temperature of the substrate reaches 350 and 450 DEG C, making the vacuum chamber in argon-nitrogen mixed atmosphere, sputtering the composite target for 60 to 120 minutes to obtain the tungsten nitride based ternary nano composite super-hard film material. The film material and the preparation method can be widely applied in the fields of mechanical manufacture, automobile and textile industry, geologic drilling, die industry and the like.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Preparation method for integrated three-dimensional multidirectional structural flat-top prefabricated body

ActiveCN102634928AImprove mechanical propertiesCrack interface problemBraidYarnEngineering
The invention relates to a preparation method for an integrated three-dimensional multidirectional structural flat-top prefabricated body. The invention relates to a three-dimensional weaving technology. According to the preparation method, a three-dimensional multidirectional structure is adopted, and on the basis of preparing a flat tope according to a square four-step method, a body part is prepared by selecting beam for educing and then compensatorily introducing a yarn and the flat top and the body part are integrally weaved and formed. The problems of the present top-sealing preparing technology, such as, low mechanical property between corner interlocking structural layers, easiness in causing adverse impacts on compounding and material property by different structures and preparation technologies for the top and body part, are solved. According to the preparation method provided by the invention, the mechanical properties of the flat top and whole body are effectively increased, the application blank of the three-dimensional weaving technology in the flat-top prefabricated body is filled up, and the technical basis for the application on main and secondary bearing structural components is established.
Owner:YIXING HUAHENG HIGH PERFORMANCE FIBER WEAVING

Polyester-carbon nanotube-tourmaline powder composite material and preparation method thereof

The invention discloses a polyester-carbon nanotube-tourmaline powder composite material and a preparation method thereof. The composite material is prepared by compounding carbon nanotubes and tourmaline powder into polyester, wherein the mass ratio of the polyester to the carbon nanotubes to the tourmaline powder is 100:(1-20):(1-50), the length of the carbon nanotubes is 1-30 microns, the diameter of the carbon nanotubes is 10-20 nanometers, and the particle diameter of the tourmaline powder is 50-2000 nanometers. The preparation method comprises the following steps of: mixing the carbon nanotubes with a modifier, and then standing the mixture for at least 2 hours at 180-300DEG C to obtain modified carbon nanotubes; mixing the tourmaline powder with a modifier, ball-milling the mixture, and standing the mixture for at least 2 hours at 180-300DEG C to obtain modified tourmaline powder; and mixing the polyester, the modified carbon nanotubes and the modified tourmaline powder together, and carrying out melt blending on the mixture by using a torque rheometer to prepare a target product, wherein the rotating speed during the melt blending is 60-150r/min, the temperature is 260-300DEG C, and the time is 6-12 minutes. The polyester-carbon nanotube-tourmaline powder composite material can be widely used in the fields of absorbing materials, automobile and plane interiors, healthcare medical treatment, furniture, household appliances and the like.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Laser sintering synthesis method of ceramic-particle-reinforced nickel-aluminum-based composite

InactiveCN102876926AEasy to control speedPlay a role in strengthening the matrixNumerical controlPhase formation
The invention belongs to the technical field of material processing and particularly relates to a laser sintering synthesis method of a ceramic-particle-reinforced nickel-aluminum-based composite. The technical scheme includes that the laser sintering synthesis method includes the steps: mixing nickel powder with aluminum powder according to the atomic ratio of Ni to Al of 3:1, adding tungsten concentrate powder accounting for 0.5-2wt% of the total weight of nickel-aluminum mixed powder, performing ball milling to obtain uniformly-mixed mixed powder, compacting the mixed powder to a cylindrical compact, placing the compact on a numerically-controlled machine tool, starting a CO2 laser machine with the laser powder of 900-1200W for laser radiation for 10-20s, and lighting the surface of the compact to enable the compact to generate self-propagating reaction, so that the ceramic-particle-reinforced nickel-aluminum-based composite by laser sintering synthesis is obtained. According to the laser sintering synthesis method, matrix reaction, reinforced phase formation and metal-based composite preparation are combined together, and the reinforced ceramic phase subjected to in-situ synthesis enables high-temperature mechanical properties of a nickel-aluminum intermetallic compound to be obviously improved and enhanced.
Owner:LIAONING TECHNICAL UNIVERSITY

Zinc oxide based film transistor and chip preparing process

This invention relates to one application new type high dielectric constant material that cubic ZnMgO crystal film as grid insulating layer, hexagonal phase ZnO base semiconductor nm film as channel layer, ITO or ZnO:Al conducting glass as electrode film TFT reparation technique, it belongs to micro electronic technology field. The advantage is that active layer and grid insulating device structure can grow on the glass substrate to provide one simple TFT manufacture technique, comparing to existing non crystal or multi crystal silicon TFT, the zinc oxide group is transparent to visible light and high mobility. It has great application prospect in flat panel display, printer, and duplicator and video camera products.
Owner:ZHEJIANG UNIV

High-strength high-toughness metal prefabricated material and preparation method thereof

The invention discloses a high-strength high-toughness metal prefabricated material and a preparation method thereof. Metal or alloy serves as a substrate of the material. Heterogeneous isomerous reinforced phases obtained through selected area strengthening and toughening treatment are distributed on the substrate. Under the circumstance that the weight of the substrate of the material is essentially unchanged, the malleability and weldability of a metal equilibrium-state structure are achieved, and the strength and abrasion resistance of a metal metastable-state structure are also achieved. According to the preparation method, energy beams / fields which comprise high-power laser beams or electron beams, ion beams and an induction heat source are adopted, and the energy beams / fields conduct the selected area strengthening and toughening treatment on the metal or the alloy to obtain the heterogeneous isomerous reinforced phases on the substrate. On the premise that properties of components are not degraded, the thickness or the dead weight of the components is greatly reduced, and thus the high-strength high-toughness metal prefabricated material can be widely applied to industrial fields such as automobiles, aircrafts, ships and trains hopefully.
Owner:武汉飞能达激光技术有限公司

High Curie temperature lead-free SNKBT piezoelectric ceramic and preparation method thereof

The invention discloses a high Curie temperature lead-free SNKBT piezoelectric ceramic with a chemical formula of Sr0.9(Na0.5-xKxBi0.5)0.1Bi4Ti4O15, wherein x equals o 0.12-0.32wt.%. The method comprises the steps of: preparing ingredients of Na2CO3, K2CO3, SrCO3, material TiO2, and Bi2O3 according to their stoichiometric ratio, carrying out ball milling for 4h, drying, sieving, and synthesizing at 850 DEG C; then conducting secondary ball milling, drying, sieving, and adding 7wt.% of PVA water solution for granulation, and molding into a blank; discharging rubber, sintering the blank at 1100 DEG C for, then coating a layer of silver on the upper and lower surfaces of the piezoelectric ceramic, carrying out sintering permeation, and polarizing in silicone oil of 170 DEG C under the electric field strength of 10KV / mm for 5-10min so as to produce the high Curie temperature lead-free SNKBT piezoelectric ceramic. The invention overcomes the shortcomings of doping of other elements and large amount of replacement to obtain high voltage characteristic in the preparation process; and the system reduces the coercive field and low voltage characteristic of the electrical ceramic caused by inadequate polarization, improves the preparation process, and improves the piezoelectric properties.
Owner:TIANJIN UNIV

Preparation method and application of hydrophilic and antibacterial dual-modified ultrafiltration membrane

The invention discloses a preparation method and application of a hydrophilic and antibacterial dual-modified ultrafiltration membrane, belonging to the technical field of ultrafiltration membranes. The invention aims to solve the problem that conventional ultrafiltration membrane materials are difficult to realize hydrophilic and antibacterial dual modification at the same time. The preparation method comprises the following steps: adding a condensing agent and 3-dimethylaminopropylamine into a graphene oxide suspension for a reaction, adding a cleaned reactant and long-chain halogenated alkane into an organic solvent, and carrying out a sufficient reaction at 20-80 DEG C for 8-24 hours to obtain a quaternized graphene oxide modifier; and 2, adding the quaternized graphene oxide modifierinto an organic solvent, carrying out ultrasonic dispersion to obtain a GO-Q suspension, dissolving a polymeric membrane matrix material and a membrane modifier into the GO-Q suspension to obtain a uniform membrane casting solution, and carrying out casting molding. The ultrafiltration membrane with the double functions of hydrophilicity and antibacterial performance is prepared by an immersion precipitation phase inversion method; and the modified ultrafiltration membrane shows better mechanical properties, water treatment performance, hydrophilicity and antibacterial performance.
Owner:HARBIN ENG UNIV

Scattering method based on differences of refractive index in media and porous scattering material

The invention relates to a scattering method based on differences of refractive index in media and a porous scattering material. According to the scattering method based on the differences of the refractive index in the media and the porous scattering material, the travelling direction of light is disturbed by using refraction or total reflection among the transparent media, and scattered light high in transmittance is obtained. The refraction or the total reflection among the transparent media is interfaces formed on the surface of a colorless and transparent scatterer which is scattered in the uniform and transparent media. Two sides of the interfaces have the different refractive index. The refractive index of the colorless and transparent scatterer is different from the refractive index of the uniform and transparent media. According to the scattering method based on the differences of the refractive index in the media and the porous scattering material, the colorless and transparent material is used, no transmission light barrier layer is arranged, a refraction angle or a reflection angle of the colorless and transparent scatterer is large, the linear degree of the light transmitting through the colorless and transparent scatterer is large, the number of the interfaces is few, so that the diffuseness effect is good, the linear degree and density of the scatterer can be selected and adjusted, luminous efficiency is high, and therefore the satisfactory scattering effect is obtained.
Owner:HANGZHOU DIANZI UNIV

Polyacrylate rubber spindle lip type sealing ring and manufacture method thereof

The invention belongs to the technical field of rubber products and relates to a polyacrylate rubber spindle lip type sealing ring and a manufacture method thereof. The polyacrylate rubber spindle lip type sealing ring comprises the following components in parts by weight: 100 parts of polyacrylate rubber, 50-60 parts of carbon black, 2-3 parts of an anti-aging agent, 2-2.5 parts of operation auxiliaries, 30-35 parts of an anti-wearing agent, 0.86 part of a vulcanizing agent and 2.2-2.6 parts of an accelerant. According to the polyacrylate rubber spindle lip type sealing ring and the manufacture method thereof provided by the invention, the manufactured ACM glue framework oil seal has heat-resisting, wear-resisting, oil-resisting and low temperature-resisting properties, and has small deformation and excellent following character; the problems of poor hand feel and elasticity, poor restoring property, difficulty in assembling at low temperature in winter and initial oil leakage of traditional ACM glue oil seal can be solved; since the technological equipment is advanced, the detection method is complete and fine, and the quality control is strict, the yield of finished products can reach up to 98% or above; thus, the oil seal is recognized by users.
Owner:QINGDAO BAOFENGSHENG FUHUA IMPORT & EXPORT SEALS

Yunnan hongyao extract and extracting method thereof and application

ActiveCN101279017AFully exert the medicinal effectReduce the number of dosesAntipyreticAnalgesicsBruisePsammosilene
The invention relates to an extract of Yunnan Health Potion (Yuannan Hongyao) and an extracting method and applications thereof. The Yunnan Hongyao comprises raw material components with the following mixing ratio by weight: 50 to 150 parts of root of pseudo-ginseng, 100 to 300 parts of chinese paris rhizome, 20 to 100 parts of dactylicapnos root, 50 to 150 parts of delavay ampelopsis root, 50 to 150 parts of bruiseweed, 60 to 100 parts of hemp, 20 to 100 parts of radix psammosilenes, 10 to 60 parts of acorus gramineus, 50 to 150 parts of scutellaria amonena wight, and 80 to 200 parts of kusnezoff monkshood root, the components are extracted by a certain method to obtain the extract of Yunnan Hongyao which has the functions of hemostasis and analgesis, activating blood and dissolving blood stasis, expelling wind and removing dampness. And the extract of the invention can be used for curing gastric ulcer hemorrhage, bronchiectasis hemoptysis, functional uterine hemorrhage, menorrhagia, fundus hemorrhage, conjunctival hemorrhage, epistaxis, hemorrhoids hemorrhage, soft tissue bruise, rheumatic arthritis, rheumatic pain in waist and lower extremities, etc. and can be made into various formulations.
Owner:YUNNAN PHYTOPHARML

Preparation method of zero-dimensional/two-dimensional structure copper oxide and tourmaline composite photocatalytic material

The invention discloses a preparation method of a zero-dimensional/two-dimensional structure copper oxide and tourmaline composite photocatalytic material. Natural tourmaline, an alkali and metal copper salt are taken as raw materials, precipitation-hydrothermal method is adopted to prepare the copper oxide/tourmaline composite material, and the preparation method comprises the following steps: firstly, ultrasonically preparing a tourmaline/water suspension system; secondly, dissolving a copper salt into the suspension system, dropwise adding an alkaline solution, and violently stirring; and finally, putting an obtained mixed system into a reaction kettle for hydrothermal reaction, and washing, drying and grinding an obtained product to obtain the zero-dimensional/two-dimensional structurecopper oxide and tourmaline composite photocatalytic material. Due to the introduction of tourmaline, the agglomeration of two-dimensional copper oxide nanosheets can be relieved, and the photocatalytic performance of copper oxide can be effectively improved. The preparation method is simple to operate, mild in condition, low in cost and rich in raw material source, and the synthesized compositematerial has good photocatalytic activity and durability.
Owner:JIANGXI UNIV OF SCI & TECH

Application of yang-reinforcing kidney-protecting medicine in preparing medicine preventing and treating osteoporosis

ActiveCN101618133AImprove bone densityIncrease bone mineral contentHeavy metal active ingredientsSkeletal disorderBone densityGonad
The invention discloses an application of a yang-reinforcing kidney-protecting medicine in preparing a medicine preventing and treating osteoporosis. The yang-reinforcing kidney-protecting medicine can improve the bone density of an osteoporosis model animal, increases the bone and mineral contents, prevents the drop of the sexual hormone level of an old-aged animal and a person and the like, and has the effects of resisting senility, enhancing the sexual gland function and the like.
Owner:GUANGZHOU BAIYUSN HUTCHISON WHAMPOA CHINESE MEDICINE

Selenium-rich tea flavored chewing tobacco and production method thereof

The invention discloses selenium-rich tea flavored chewing tobacco which comprises raw materials of, by weight, 15-30 parts of chewing gum glue base materials, 30-90 parts of sweetening agents, 1-10 parts of vine tea additives, 1-5 parts of tobacco additives, 0.1-5 parts of flavoring agents, 0.1-5 parts of emulsifying agents, 0.1-3 parts of condiments, 0.1-3 parts of CMC (carboxyl methyl cellulose) and 0.1-5 parts of antioxidants. A production method of the selenium-rich tea flavored chewing tobacco is simple in production technology, fragrance and uniformity of effective ingredients released during chewing are improved, harmony of a chewing tobacco product is improved in taste, and diversified function effect of the chewing tobacco product is promoted; defects that traditional chewing tobacco strong in taste and having too much in strength and irritation turns slight after several minutes and gets poor in coordination and enjoyment during the process are overcome, enjoyment of a consumer during chewing is increased, carcinogens and other harmful substances generated during high-temperature combustion of the tobacco are avoided, the situation that secondhand smoke pollution caused by the cigarettes does not need to be limited by occasions is avoided, and convenience in carrying is achieved.
Owner:ENSHI JINHUA BIOLOGICAL ENG

Lightweight integrated uninterrupted alternating and direct current power source and method

The invention provides a lightweight integrated uninterrupted alternating and direct current power source and a method. The lightweight integrated uninterrupted alternating and direct current power source includes a 220V30AH lithium battery pack, a high-frequency switch rectifier module for power, a power UPS module, and a monitoring system; wherein the 220V30AH lithium battery pack is connected in parallel with the 220V direct current output of the high-frequency switch rectifier module for power, and can realize direct current 220V uninterrupted output; the high-frequency switch rectifier module for power charges the lithium battery pack using an external alternating current 220V power source as an input power source; the external alternating current 220V power source and the 220V30AH lithium battery pack are connected and input to the power UPS module, and the power UPS module realizes an alternating current 220V uninterrupted output; the monitoring system is connected to a batterymanagement system, the high-frequency switch rectifier module and the power UPS module separately; the battery management system is connected to the lithium battery pack; and the monitoring system realizes the monitoring of the working states of the lithium battery pack, the high-frequency switch rectifier module, and the power UPS module. The lightweight integrated uninterrupted alternating and direct current power source can realize uninterrupted alternating current output and direct current output at the same time, and has strong applicability.
Owner:国网山东省电力公司曲阜市供电公司 +1

Health-protection leonurus noodles and making method thereof

The invention relates to health-protection leonurus noodles. The health-protection leonurus noodles are characterized by being prepared from the following components in parts by weight: 65-70 parts of wheat powder, 27-32 parts of a leonurus, angelica sinensis and sichuan lovage rhizome extracting solution and 1.5-2.5 parts of edible salt. The health-protection noodles are prepared from wheat powder, the leonurus, angelica sinensis and sichuan lovage rhizome extracting solution and the edible salt according to a fixed ratio; wheat powder, leonurus, angelica sinensis and sichuan lovage rhizome are natural plant raw materials, so that no additive is added; the raw material mixing is simple and reasonable; effects of all the raw materials are supplemented each other; therefore, the active ingredients of wheat powder, leonurus, angelica sinensis and sichuan lovage rhizome are well retained, and the made noodles are rich in nutrition and easy to digest, have the characteristics of rich nutrition, reasonable component mixing, low cost, simple production technology, delicious taste, tastiness and fineness, have the effects of enhancing the immunity, promoting blood circulation to restore menstrual flow, inducing diuresis to alleviate edema, clearing away heat and toxic materials, moistening dryness, realizing laxation, nourishing yin to activate blood and the like, do not injure other parts of a human body after being eaten for a long time, and have extremely good disease resistance and health protection effects.
Owner:YUZHOU SIYUAN IND
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