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291results about How to "Strong competitive advantage" patented technology

Manufacturing method of environment-friendly antiflaming middle and high density fiberboard

The invention relates to a manufacturing method of an environment-friendly antiflaming middle and high density fibreboard, solving the problem of high fibreboard production cost and poor fire resistance and environmental protection in the prior art. The invention comprises the following technical steps: hot grinding wooden or non-wooden materials into fibre; applying expansion N-P fire retardant of which the solid content is 35-60% and the pH value is 7-8 for fire retardant treatment, wherein the application amount of the fire retardant accounts for 10-15 wt% of absolute dry fibre; applying urea resin, waterproof agent and curing agent, wherein the urea resin application amount accounts for 10-14 wt% of the absolute dry fibre, the waterproof agent application amount accounts for 1-3 wt% of the absolute dry fibre, and the curing agent application amount accounts for 0.5-2 wt% of urea resin; then, drying, paving, prepressing, hot-pressing, cutting edges, sanding, separating and the like to obtain the fibreboard after inspection. The invention has simple production technology and low cost, the fibreboard not only has favorable physical-mechanical property but also has antiflaming and environment-friendly characteristics.
Owner:ZHEJIANG FORESTRY ACAD

Environment-friendly composite microbial preparation, preparation thereof, and application thereof to aquaculture

The invention relates to an environment-friendly composite microbial preparation, preparation thereof, and application thereof to aquaculture. An environment-friendly composite microbial water purifying agent comprises the following components in percentage by weight: 20 to 40 percent of bacillus subtilis, 10 to 20 percent of bacillus licheniformis, 10 to 15 percent of bacillus megaterium, 10 to 15 percent of brevibacillus laterosporus, 5 to 10 percent of bacillus pumilus, 5 to 20 percent of bacillus coagulans and 2 percent of biological activating agent. The high-concentration composite microbial preparation is prepared by screening eight strains of probiotics by simulating the physiological functions of normal microbial flora in an aquaculture environment and through scientific compatibility, so that division and cooperation amount the bacterial strains can be realized, a biological enhancement technology can be combined with an indigenous flora activating technology, complex problems in a culture water body can be solved completely, the using amount is small, the cost is low, and the competitive advantage is remarkable.
Owner:WUHAN HUAYANG ANIMAL PHARMA

Intelligent vehicle-mounted communication informatization system and communication method based on 3-generation (3G) technology and cloud system

The invention provides an intelligent vehicle-mounted communication informatization system based on a 3-generation (3G) technology and a cloud system. The intelligent vehicle-mounted communication informatization system comprises a master control module, a wireless communication module, a positioning module, a sensor module and other functional modules, wherein the master control module comprises an advanced Risc machine (ARM)-based micro controller which is used for coordinatively controlling other modules of the system, and an intelligent embedded operating system; the wireless communication module is a wireless access module for accessing the system to the Internet based on various 3G technologies and is electrically connected with the master control module; the positioning module is a module for supplying a positioning function to the system based on positioning systems, such as a global positioning system (GPS), a beidou positioning system and the like, and is electrically connected with the master control module; the sensor module is a module for supplying a theftproof function based on an ultrasonic sensing technology and is electrically connected with the master control module; and other functional modules are modules for realizing main functions of the system. The invention also provides a communication method applied to the system. The system has the characteristics that: the GPS navigation speed is higher, the cloud system can be widely applied, and the whole vehicle-mounted system is higher in intelligentization level.
Owner:SHANGHAI QISUO INFORMATION TECH

Coal-water abrasion and corrosion resistant steel plate for railway coal transport vehicle and manufacturing method thereof

The invention discloses a coal-water abrasion and corrosion resistant steel plate for a railway coal transport vehicle and a manufacturing method thereof. The coal-water abrasion and corrosion resistant steel plate comprises the chemical components of, by weight, 0.01-0.15% of C, 0.10-0.50% of Si, 0.20-1.0% of Mn, 0.020% or less of P, 0.010% or less of S, 0.20-0.60% of Cu, 0.50-1.5% of Ni, 0.20-2.0% of Cr, 0.030-0.10% of Sb, 0-0.25% of Mo, 0-0.05% of Nb, 0-0.05% of V, 0-0.10% of Ti, 0-0.005% of B and the balance Fe and impurities, wherein C, Cr and Ni need to meet the relation of 1.6%<=12C+Cr / Ni<=2.8%. The steel plate is manufactured through the ten steps of blast-furnace iron melting, molten iron pre-desulfuration, converter smelting, LF+RH refining, plate blank continuous casting, cast blank slow cooling, plate blank heating, hot continuous rolling, laminar flow cooling and reeling, the yield strength of the steel plate is 450 MPa grade, the steel plate is excellent in mechanical performance, the service life of the steel plate under the coal-water abrasion and corrosion environment can be greatly prolonged, and the obvious competition advantage in the railway coal transport vehicle carriage manufacturing industry is achieved.
Owner:武汉钢铁有限公司

Double-tube fully-hydraulic braking device with closed wet-type multi-disc brakes for coal mine explosion-proof vehicle

The invention belongs to the technical field of braking devices of coal mine auxiliary conveying machinery, in particular to a double-tube fully-hydraulic braking device with closed wet-type multi-disc brakes for a coal mine explosion-proof vehicle. The invention aims to provide an explosion-proof, antipollution, stable, reliable and sensitive brand-new braking system. The braking device comprises a charging valve, wherein an oil feeding opening P of the charging valve is connected with a hydraulic pump, the oil opening A1 and opening A2 of the charging valve are connected with a front brake energy accumulator and a rear brake energy accumulator, and the oil opening SW is communicated with a parking braking oil pipe; the front and rear braking energy accumulators are connected with serial pedal braking valves respectively; the serial pedal braking valves are connected with a front service brake and a rear service brake respectively; parking braking energy accumulators are connected with parking braking valves; and parking braking valves are connected with parking brakes. The braking device meets the conditions for use in a special underground environment, can improve the braking efficiency and working efficiency and safety of the underground explosion-proof vehicle, reduce labor intensity, reduce casualty and accident rates and make underground conveying safer.
Owner:TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1

BISPECIFIC OR-GATE CHIMERIC ANTIGEN RECEPTOR RESPONSIVE TO CD19 and CD20

A CD19-OR-CD20 chimeric antigen receptor (CAR) protein construct is provided. Also provided are nucleic acids encoding the CD19-OR-CD20 CAR; and methods of use, e.g. in the treatment of B cell malignancies. The CD19-OR-CD20 CAR of the invention is a bispecific CAR that can trigger T-cell activation upon detection of either CD19 or CD20 (or both). It is a single molecule that confers two-input recognition capability upon human T cells engineered to stably express this CAR.
Owner:RGT UNIV OF CALIFORNIA +1

Plastic-bamboo composite tube coiled forming technology method

The invention relates to a bamboo-plastic composite pipe rolling forming technique, which solves a problem that present bamboo-plastic composite pipe centrifugal casting has the defects of easy offset and exposure, loose bamboo filling materials, low content, etc. The specific processing steps are to cut bamboo materials into bamboo long strips, on which degreasing, dehydration and surface active agent activation treatments are implemented. A mat bamboo weaved object are precast. Resin mortars are evenly coated on the mat bamboo weaved object. Silicon oil demould agent is coated on the outer surface of the mould pipe. More than one layer of the mat bamboo weaved object is helicoidally tensioned and winded on the mould pipe and is heated and solidified for forming. Then, the object is cooled to the room temperature and is demoulded to obtain the bamboo-plastic composite pipe. The manufacturing process condition requirements of the invention are relative simple. The compactness of the bamboo filling materials is greatly improved. The strength and the rigidity of the pipe are improved. And the content of the bamboo materials reaches to 50-70 percentage, which is beneficial to the further lowering of the cost. The invention is especially applied to the production of pipe products with large diameter.
Owner:HEFEI UNIV OF TECH +1

Preparation method of oil absorbing material by taking palm fiber as basic material

The invention relates to a preparation method of an oil absorbing material, and the oil absorbing material is prepared by subjecting a basic material namely palm fibers to hydrophobic modification. The preparation method comprises the following steps: washing palm fibers, drying palm fibers, cutting the palm fibers into sections with a length of 0.5 to 5 cm; putting the palm fibers into a hydrophobic agent solution, soaking for 10 to 120 minutes at a temperature of 25 to 100 DEG C, taking out the palm fiber containing a hydrophobic agent, and quickly drying so as to obtain the modified oil absorbing material; wherein the hydrophobic agent is composed of paraffin, palm wax, or a mixture of paraffin and palm wax, the addition amount of the hydrophobic agent is 0.01 to 0.2 times of the weight of the palm fibers, the solvent is one or more of carbon tetrachloride, vinyl acetate, ethanol, and benzene, and the addition amount of the solvent is 20 to 800 times of the weight of the hydrophobic agent. Cheap and easily-available natural plant palm is taken as the raw material, the oil absorbing material is prepared by carrying out hydrophobic modification on the palm fibers, and compared with the oil absorbing materials prepared through chemical synthesis, the provided oil absorbing material has the advantages of low cost, biodegradability, and excellent oil absorbing performance.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

MIM manufacturing process for weak-magnetism 17-4PH material part

ActiveCN108380888AControl Nitriding DepthControl the nitriding depth to meet the magnetic requirementsTransportation and packagingMetal-working apparatusNitrogenRoom temperature
The invention discloses an MIM manufacturing process for a weak-magnetism 17-4PH material part. The MIM manufacturing process comprises the following technological steps of: preparing an MIM injection-molded blank; degreasing; sintering; and discharging, wherein in a sintering process, the temperature is increased from the room temperature to 550-650 DEG C at a temperature rise speed of 3-3.5 DEGC / min in negative-pressure sintering; the temperature is increased from 550-650 DEG C to 950-1050 DEG C at a temperature rise speed of 3.8-4.5 DEG C / min in vacuum sintering; the temperature is increased from 950-1050 DEG C to 1270-1300 DEG C at a temperature rise speed of 2-2.5 DEG C / min in partial-pressure sintering; in a first-stage cooling process, the temperature is reduced from 1270-1300 DEGC to 1050-1150 DEG C; in a first-stage cooling temperature-maintaining process, the temperature is maintained for 60 min to 360 min at 1050-1150 DEG C, and nitrogen is charged; in a second-stage cooling process, the temperature is reduced from 1050-1150 DEG C to 550-650 DEG C; and in a third-stage forced cooling process, the temperature is reduced from 550-650 DEG C to 70 DEG C or lower in a forced cooling manner. A product manufactured by the manufacturing method disclosed by the invention is high in dimensional accuracy, high in strength, good in weak magnetism and corrosion resistance, andsmaller than 1.2H / M in magnetic conductivity.
Owner:QUJING ZHONGMING TECH

Porcine seneca valley virus strain and application thereof

ActiveCN107513524AGood strain backgroundLay the material foundationSsRNA viruses positive-senseViral antigen ingredientsPig farmsDisease
The invention discloses a porcine seneca valley virus strain and an application thereof. In the invention, the seneca valley virus strain CH-FJZZ-2017 is isolated from pathological materials of porcine idiopathic vesicular disease in a pig farm in Fujian Province, with the preservation number of CGMCC No. 12160. The isolated porcine seneca valley virus CH-FJZZ-2017 in the invention is isolated from swinery newly suffering from the epidemic disease within Chinese territory, represents the current epidemic predominant virus strain in China, has a good virus strain background, and can be used as an inactivated vaccine production virus strain and a virus seed for testing, thereby providing a material for subsequent relevant experimental study, and laying a material foundation.
Owner:CHINA ANIMAL HUSBANDRY IND

High-performance easy-construction two-component aqueous epoxy zinc-rich coating and preparation method thereof

The invention relates to an easy-construction two-component packaging aqueous epoxy zinc-rich coating. The coating selects a low-molecular-weight epoxy resin, an active diluent, a high-efficiency antifoaming agent, a wetting dispersant, ultrafine zinc powder, a self-emulsifying aqueous epoxy hardener, a cosolvent and water as raw materials. The aqueous epoxy zinc-rich coating has the advantages of good corrosion resistance, realization of resisting salt spray for 1500h, no foaming, rust or shredding of the coat of the coating, according with requirements of HG / T3668-2009 Zinc Rich Primer, good application performance, convenient onsite use, realization of the thickness of the once-formed coat of above 80mum, 1h surface drying and 16h hard drying at 25DEG C, and satisfying of the steel structure anticorrosion construction requirement. The aqueous epoxy zinc-rich coating can be applied to the anticorrosion of steel structures comprising ships, bridges, sea engineering apparatuses and the like, and can also be applied to the steel plate pretreatment streamline as a workshop primer.
Owner:XIAMEN SUNRUI SHIP COATING

Preparation method of terpolymer defoamer

The invention discloses a preparation method of a terpolymer defoamer. The preparation method comprises the steps: 1) the synthesis of polyether modified silicone oil; 2) the synthesis of a terpolymer of polyol and polyether modified silicone oil; 3) the preparation of the terpolymer defoamer. Firstly, a hydrosilylation reaction is performed on an acetyl-terminated allyl polyether and a low-hydrogen containing silicone oil in the presence of a chloroplatinic acid catalyst to generate the polyether modified silicone oil having the structure of Si-C; secondly, a condensation reaction is performed on the polyether modified silicone oil having the structure of Si-C and a polyhydric alcohol in the presence of concentrated sulfuric acid to obtain the main monomer of the polyhydric alcohol-polyether modified silicone oil terpolymer system defoamer, and the monomer is taken as the major ingredient to prepare the defoamer; the problem of silicon deposition of a traditional organic silicon defoamer in the use process is improved, and the advantages of the silicone coil, the polyether and the polyhydric alcohol are integrated so that the terpolymer defoamer is integrated with the functions of defoaming, foam inhibition, foam merging and degassing, and therefore, the terpolymer defoamer can be widely applied to a plurality of fields such as papermaking, chemical fibers, oil field and wastewater, and has outstanding competitive advantages.
Owner:XIAN SUNY FINE CHEM

Method for making laminated travelling wave electroabsorption modulation laser with epitaxial selection region

The invention relates to the fabrication method of a travelling-wave electroabsorption modulated laser with a laminated structure formed by selective-area growth (SAG). The fabrication method comprises the following steps: fabricating a mask strip pattern on a semi-insulating InP substrate; sequentially epitaxially growing a heavily-doped n-InP buffer layer, a 1.2Q lower confinement layer, a multi-quantum well structure of a modulator, a multi-quantum well structure of a laser, a 1.2Q upper confinement layer and an n-InP inversion layer; etching off an upper laminated multi-quantum well structure in a SAG laminated multi-quantum well structure, and a lower laminated multi-quantum well structure and the 1.2Q lower confinement layer of an optical terminal region; fabricating a grating on a large-area growth area, and etching an inversion layer to the 1.2Q upper confinement layer by the grating; and sequentially epitaxially growing a p-InP protection layer, an etching stop layer, a p-InP cover layer and a p-InGaAs layer; and etching off the p-InGaAs layer in the electrical insolation area, and implanting ions in the p-InP cover layer in the area to produce a high-impedance area.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI

Software and hardware simulation

A verification environment is provided that co-verifies a software component 8 and a hardware component 10. Within the same environment using a common test controller 18 both hardware stimuli and software stimuli may be applied to their respective simulators. The response of both the software and the hardware to the simulation conducted can be monitored to check for proper operation.
Owner:ARM LTD

Papermaking sludge paperboard and preparation thereof

InactiveCN101949105ASolve the disadvantages caused by the processing methodSolve the disadvantagesWaste product additionSpecial paperFiberCardboard
The invention relates to the field of papermaking, and discloses a sludge paperboard and preparation thereof. The papermaking sludge paperboard is prepared from papermaking sludge and short fibers serving as raw materials. By breaking through sludge papermaking technology and solving the strength problem of the sludge paperboard, 100 percent of papermaking sludge is recycled and the pollution problem of spinning waste, namely the short fibers is partially solved; and the formed sludge paperboard product can replace a thick paperboard and has obvious cost advantage.
Owner:上海洁都纸业有限公司

Preparation method of special-shaped boron carbide ceramic sandblast nozzle

The invention discloses a preparation method of a special-shaped boron carbide ceramic sandblast nozzle. The preparation method comprises the following steps: (1) proportioning all the raw materials in percentage by weight as follows: 50-70wt% of boron carbide powder, 20-40wt% of a sintering aid, 1-8wt% of a carbon source, 0.5-6wt% of an adhesive and 0.6-6wt% of a dispersing agent; (2) carrying out a spray drying granulation process on the obtained slurry into granules; (3) putting the granules into a manufactured soft mould sleeve and moulding by using a dry bag type granules method, thus obtaining a sandblast nozzle biscuit; (4) putting the sandblast nozzle biscuit into a debonding furnace, vacuumizing, heating for removing water and organics, then processing in a vacuum sintering furnace to obtain a finished boron carbide ceramic sandblast nozzle product. The method is suitable for volume production and the prepared boron carbide sandblast nozzle has the advantages of high hardness, good toughness, good wear resistance, long service life, low cost, and high performance cost ratio. The method can be used for preparing sandblast nozzle products with complicated hole structures.
Owner:NINGBO VULCAN TECH CO LTD

Nano selenium micromolecular microbial polysaccharide as well as preparation method and application thereof

The invention provides a nano selenium micromolecular microbial polysaccharide, which is prepared under ultrasonic condition by taking micromolecular Caragana rhizobia extracellular polysaccharide as a raw material through uniformly dispersing and co-acting with selenium dioxide and a reducing agent. The production method specifically comprises the steps of: preparing a micromolecular bacterial polysaccharide solution with a proper concentration, uniformly mixing micromolecular Caragana rhizobia polysaccharide with vitamin C, slowly dropwise adding selenium dioxide to the mixed system, carrying out ultrasonic dispersion and reaction, dialyzing and freeze-drying. The nano selenium micromolecular microbial polysaccharide product prepared by the preparing process has the selenium content up to 15.2-16.4mu g / mg, selenium average grain size about of 380 nm and polysaccharide yield more than70%. Mouse test shows that the nano selenium micromolecular polysaccharide has excellent anticancer activity, and can be applied to preparing anticancer medicaments and health products.
Owner:SHANXI UNIV

Fluorescence immunochromatography flu virus detection test paper

The invention discloses fluorescence immunochromatography flu virus detection test paper. The test paper comprises a PVC (polyvinyl chloride) bottom plate (1), and is characterized in that a connecting pad (3) is paved on the upper surface of the PVC bottom plate (1); a sample feeding hole (2) is formed in the left side of the connecting pad (3); a nitrocellulose membrane (4) and a water absorbent pad (9) are pasted at the right side of the connecting pad (3) in sequence; three line-shape or band-shaped detection antibody detection lines and beta-actin detection antibody control lines (8) are arranged on the nitrocellulose membrane (4) in sequence from left to right; the connecting pad (3) comprises a glass fiber membrane; red, green and orange fluorescein particles are uniformly attached on the glass fiber membrane; three anti-target material detection antibodies are coupled on the red fluorescein particles respectively; AMACR (alpha-methylacyl-CoA racemase) antigens are coupled on the green fluorescein particles; and beta-actin antibodies as internal references are coupled on the orange fluorescein particles. The test paper is low in price and available in materials, and has the sensitivity and the specificity of more than 95%.
Owner:CHONGQING ACADEMY OF SCI & TECH

Method for producing Bacillus subtilis for feeds by fermenting high-salt-content amino acid wastewater

The invention discloses a method for producing Bacillus subtilis for feeds by fermenting high-salt-content amino acid wastewater, which comprises the following steps: 1. habituated culture of feed strain: carrying out continuous habituated culture to enhance the tolerance of the strain to high-salt-content amino acid wastewater; and 2. fermentation of strain: under appropriate fermenting conditions, carrying out liquid ventilation culture in a fermentation tank for some time to obtain the Bacillus subtilis for feeds. The microzyme is centrifugated, collected, dried in a 70 DEG C drying oven to constant weight, and weighed. The calculation indicates that every liter of high-salt-content amino acid wastewater can obtain 35g of Bacillus subtilis at the maximum. The method can effectively utilize amino acids, microelements and growth factors contained in the wastewater, greatly lowers the fermenting cost of the Bacillus subtilis for feeds, greatly reduces the sewage treatment load, achieves the comprehensive utilization effect, and has obvious economic and social benefits.
Owner:HUBEI UNIV OF TECH

Scandium extraction method of river channel sedimentation

A process for extracting scandium (Sc) from the silt in river includes such steps as classifying, gravitational separation, magnetic dressing, electric dressing to obtain titanaugite concentrate, leaching, extracting, phase transfer, and purifying. Its advantages are high effect and low cost.
Owner:汪友华

Complex microbial agent for restoring coastline with heavy oil pollution, as well as preparation method and applications thereof

The invention relates to a complex microbial agent for restoring coastline with heavy oil pollution, as well as a preparation method and applications thereof. The complex microbial agent comprises Sphingobacterium mizutaii, Achromobacter xylosoxidans and Achromobacter piechaudii, furthermore, the collection number of the Sphingobacterium mizutaii is CGMCC No.800; the collection number of the Achromobacter xylosoxidans is CGMCC No.8022; and the collection number of Achromobacter piechaudii is CGMCC No.8021. The complex microbial agent is good in salt resistance property, prominent in competitive advantages, and has a high-efficiency restoration effect on the crude oil pollution of coastline, especially refractory heavy oil contamination through the synergistic effect of the three bacteria, and can also be applied to restoration of saline alkali soil with overflow oil contamination.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Torque loading mechanism

The invention relates to a torque loading mechanism which comprises a loading bolt, a locking nut, a locking bolt, a self-locking nut, a loading flange and a loading switch-over plate. The loading bolt is screwed from the inside of a threaded hole of the loading flange, abuts against the loading switch-over plate and is locked through the locking nut. Angular displacement occurs to the loading flange and the loading switch-over plate. After a specified torque is reached, the loading bolt is fixed through the locking nut. The loading flange and the loading switch-over plate are fixed through the locking bolt, and accordingly loading of sealed shafting torque is achieved. The torque loading mechanism is simple in structure, convenient to operate, high in accuracy, safe and reliable; the axial size is small, the structure of a test stand is compact, the test rotation speed can be improved, cost is low, machining is easy, cost is less than 1% of a hydraulic loader and an electric loader, and the torque loading mechanism has strong competition advantages.
Owner:无锡创明传动工程有限公司

Method for producing nutria tendon tissue medical suture and straining device for the same

The invention discloses a production method of suture prepared from nutria tendon tissue and its tensioner. The method comprises extracting tendon tissue from nutria, dewatering, degreasing, sterilizing, air-drying under tensile force, screening to obtain qualified tissue, separating out suture of different specification, and matching with non damage perforate pin or notch pin according to specification, and preparing into sutural line with pin. The inventive suture needle has smooth surface, uniform strip, accurate linear diameter, and good tensile force.
Owner:湖南然元医用高科技蛋白线有限公司

Holographic solar photovoltaic battery and manufacturing method thereof

The invention provides a photovoltaic battery which comprises one or a plurality of material layers which are of micro-nano holographic optical structures. The micro-nano holographic structures are used as light-pervious layers, so that reflection of incident light on light incident planes is reduced and dependency of the photovoltaic battery on angles of the incident light is reduced. Light can be trapped and also transmitted. Action areas between light and active layer photoelectric conversion materials can be greatly increased on an action layer. A complete reflecting mirror structure is adopted on a back electrode, light transmitted to the back electrode can be reflected back to the photoelectric conversion materials, and meanwhile with surface plasmon polariton resonance effect applied, light intensity can be increased, so that useful effect of the light and the photoelectric conversion materials is increased and improved from one to more angles, and photoelectric conversion efficiency of the photovoltaic battery is increased by a large scale. With the above one or more functional structures adopted, various photovoltaic battery structures can be manufactured and the aim of improving the performance of the photovoltaic battery can be achieved.
Owner:SHENZHEN NAHUM-ELI OPTICAL TECH INC

Method for synchronously separating and preparing salidroside and rosavin from rhodiola rosea

The invention discloses a method for synchronously separating and preparing salidroside and rosavin from rhodiola rosea, comprising the following steps: (1) taking the rhodiola rosea as a raw material, and extracting by using analcohol aqueous solution containing a deep-eutectic solvent, wherein the deep-eutectic solvent has the effects of emulsifying, wetting, being assistant in dissolving and the like, and is beneficial for the extraction of the salidroside and the rosavin; (2) preparing a salidrosidecrude extracting solution and a rosavin crude extracting solution respectively from the extract by combining a mixed macroporous resinexpanded bed technology and a gradient elution technology; (3) preparing a salidrosideextract and a rosavin extract from the salidrosidecrude extracting solution and the rosavin crude extracting solution respectively by using the mixed macroporous resinexpanded bed technology again. Through HPLC content testing, the content of the salidroside in the salidroside extract is 40 percent to 80 percent, and the recovery is 60 percent to 88 percent; the content of the rosavin in the rosavinextract is 30 percent to 70 percent, and the recovery is 65 percent to 85 percent.
Owner:云南油橄榄大健康产业创新研究发展有限公司

Inner surface and outer surface jet flow descaling system and method for big-diameter metal pipe wall

ActiveCN102764778AEnvironmentally friendly descaling processGreen descaling processWork treatment devicesMetal rolling arrangementsEngineeringMotion Mode
The invention discloses an inner surface and outer surface jet flow descaling system for a big-diameter metal pipe wall, which is characterized by comprising at least one spraying unit, wherein the spraying unit is used for simultaneously spraying mixed jet flow to the inner surface and the outer surface of the metal pipe wall and carrying out descaling; the inner surface and outer surface jet flow descaling system at least comprises two groups of spraying units, wherein one group is an inner spraying subunit used for descaling the inner surface of the metal pipe wall, and the other group is an outer spraying subunit used for descaling the outer surface of the metal pipe wall; the descaling system also comprises an actuating mechanism used for realizing a purpose that the big-diameter metal pipe wall carries out spiral motion; and therefore, the big-diameter metal pipe wall realizes the rotating motion around the self axis while axially moving. According to a special arrangement mode of mixed jet flow nozzles and a special motion mode of the big-diameter cold-state metal pipe wall, a continuous efficient mode that roll scales on the inner surface and the outer surface of the big-diameter cold-state metal pipe wall are synchronously removed can be realized so as to satisfy the processing requirement of the post-process.
Owner:BAOSHAN IRON & STEEL CO LTD

High surface quality hot rolled steel plate used for manufacturing swing arm of excavator, and manufacturing method thereof

The invention discloses a high surface quality hot rolled steel plate used for manufacturing a swing arm of an excavator, and a manufacturing method thereof. The high surface quality hot rolled steel plate comprises the following chemical components in percentage by weight: 0.01-0.25 percent of C, 0.05-0.20 percent of Si, 0.10-2.0 percent of Mn, 0.005-0.10 percent of Nb, 0.005-0.20 percent of V, 0.01-0.15 percent of Ti, 0.020-0.070 percent of Als, 0.025 or less than 0.025 percent of P, 0.015 or more than 0.015 percent of S, and the balance of Fe and impurities. The high surface quality hot rolled steel plate is prepared through blast-furnace melt, preliminary desulphuzation of hot metal, converter steel making, LF and RH refining (feed an Si-Ca cable), slab continuous casting, slow cooling of casting blank, slab heating, hot continuous rolling, laminar cooling, rolling, unrolling, 7-roller coarse rectifying and 11-roller fine rectifying, and transverse cutting. The steel plate used for manufacturing the swing arm of the excavator has the yield strength Rel of 280-450MPa, the tensile strength Rm is equal to or greater than 420 MPa, the ductility A is equal to or greater than 25 percent, and the charpy impact absorbing energy KV2 of a transverse test sample is equal to or greater than 50J. The high surface quality hot rolled steel plate has a relatively high intensity, is excellent in weldability, and can completely meet performance requirements of excavating machinery manufacturers all over the world.
Owner:武汉钢铁有限公司

Polyamide 5X fiber and preparation method thereof

The invention discloses a preparation method of a polyamide 5X fiber, and the polyamide 5X fiber prepared therethrough. The preparation method is characterized in that a spinning raw material is spun,and the spinning raw material comprises 1,5-pentanediamine and a dibasic acid, or polyamide obtained by polymerizing 1,5-pentanediamine and the dibasic acid as monomers; and the number of holes in aspinneret during spinning is 3500-10000 f. The preparation method of the polyamide 5X fiber can further improve the spinning efficiency and increase the spinning production capacity while ensuring that all the properties of the obtained fiber are unchanged or even slightly improved.
Owner:CATHAY R&D CENT CO LTD +1

Novel water purifying plant and water purifying method

The invention discloses a novel water purifying plant and a water purifying method. The novel water purifying plant comprises a water storage body, a water processing assembly arranged in the water storage body, a purified water storage assembly and a limiting mechanism, wherein the limiting mechanism is arranged on the water storage body or is arranged inside the water storage body; the water processing assembly consists of a primary filter assembly the lower part of which is provided with a water inlet and a functional filter material assembly communicated with the inside of the primary filter assembly; and the functional filter material assembly is provided with a secondary purified water inlet connected with a primary filtered water outlet of the primary filter assembly and a secondary purified water outlet connected with the purified water storage assembly. The water purifying method comprises the following steps: subsiding a pressure generated in the process of discharging water in the water by the water processing assembly; and making the water flow through the primary filter assembly and the functional filter material assembly from top to bottom to be purified and finally flow into the purified water storage assembly. The novel water purifying plant has the advantages of simple structure, convenient use, electricity consumption prevention, no pollution, large flux, low cost and wide application range, can effectively purify various different water qualities and can realize the using requirement according to the different water qualities.
Owner:XIAN ZHONGSHUIRUN NEW MATERIAL TECH
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