157results about How to "Not easy to take away" patented technology

A bi-hot pressing composite friction material and its production are disclosed. The process is carried out by the first hot-press forming, crushing for composite friction material, sifting, mixing composite friction material 40-70 wt% and high-temperature-resisting modified resin 15-35 wt% with reinforced fiber 5-15 wt%, rubber powder 5-15 wt% and residual lubrication material, putting them into mould, hot-press forming at 140-165 degree and 12-20 Mpa and keeping temperature to obtain final product. It has stable friction coefficient, less wear rate and friction noise, better surface toughness and higher gas-pocket coefficient.

The invention relates to a green environment-friendly snow-melting liquid and a preparation method thereof. The liquid contains the following components: 40-60 wt% of a soluble acetate; 10-20 wt% of a soluble formate; 2-5 wt% of a soluble carbonate; 1-5 wt% of a polyol; 1-5 wt% of a viscosity modifier; and 20-40 wt% of water. The green environment-friendly snow-melting liquid provided in the invention is free of chloride ions, has a fast snow-melting rate, has no corrosion on metal materials such as steel bars, and has no pollution on soil and water bodies, thus being green and environment-friendly. The snow-melting liquid is convenient for storage and transportation, and has wide application. Compared with most of existing solid snow-melting materials, the snow-melting liquid has the characteristics of fully mechanized spreading way, uniform spreading, labor cost reduction, and spreading time reduction, etc.

An improver for the flowability of crude oil in oil well or pipeline is prepared from polyoxyacrylic polyoxyvinyl propane diol ether, polyoxyacrylic polyoxyethene polyvinylpolyamine ether, sodium dodecylphenylsulfonate, poluoxyacrylic polyoxyvinyl resinether, polyoxyacrylic polyoxyvinyl emtrolether, methanol and water through proportional mixing, heating to 50-100 deg.C, stirring for 2 hrs and cooling to 30-40 deg.C.

The invention discloses a semi-dry circulating cyclone bed desulfurizing tower. By providing a tangential exhaust gas inlet structure of the desulfurizing tower, a rotating flow field is established inside the desulfurizing tower so as to sufficient mixing and contact of exhaust gas, so that the desulfurizing reaction process inside the desulfurizing tower is intensified, a desulfurizing agent is sufficiently utilized, the desulfurizing efficiency is improved; and secondary air is arranged to intensify the intensity of a rotating flow, so that separation of gas from solid is achieved inside the desulfurizing tower. By adopting the structure, an external cyclone separator in a conventional circulating fluidized bed desulfurizing process is omitted, so that the semi-dry circulating cyclone bed desulfurizing tower is compact in structure and easy to install and maintain.

The invention provides an inorganic metal compound, a composition comprising the inorganic metal compound, a device, apparatuses, and a manufacturing method for the device. The inorganic metal compound is used for a first current carrier transport layer of a photoelectric device; the inorganic metal compound is a chelate which is obtained from inorganic semiconductor nanocrystals and a chelating agent through a chelating reaction; and first current carriers comprise electrons or holes. By adoption of the inorganic metal compound, material stability can be improved; the chelate with a stable structure is formed by virtue of matching of the chelating agent and active sites of the inorganic semiconductor nanocrystals in the chelating reaction; therefore, by lowering or inactivating the activity of the active sites on the surfaces of the inorganic semiconductor nanocrystals, the capability of accepting external electrons or holes of the active sites is lowered; the electrons or holes of a quantum dot light emitting layer cannot be extracted by the active sites easily; fluorescence quenching of the quantum dots is reduced; the problem of fluorescence quenching of a quantum dot light emitting screen easily caused by the existing inorganic current carrier transport material can be solved; and the light emitting efficiency of the photoelectric device is improved.

The invention discloses a mixed heat dissipation device for a lithium battery pack, and relates to the technical field of battery thermal management. The device comprises a box body, an air cooling assembly, a phase change energy storage heat conduction plate, a liquid cooling assembly, a plastic box cover and a plastic bottom plate. A plurality of groups of placing holes for placing battery cellsare formed in the plastic bottom plate. Each group of placing holes consists of a plurality of placing holes which are arranged in parallel and obliquely. Two adjacent groups of placing holes are symmetrically arranged to form an air duct for airflow to pass through. An included angle between the placing hole and the front surface of the box body is 10 +/-5 degrees. The bottom of the battery cellis positioned at the upper part of the placing hole. The phase change energy storage heat conduction plate is mounted at the lower part of the placement hole, and the upper and lower ends of the phase change energy storage heat conduction plate are contacted with the battery cell and the liquid-cooling assembly. The mode of combining air cooling, the phase change composite board and liquid cooling is adopted, rapid heat dissipation of the lithium battery can be achieved, the heat dissipation efficiency of the lithium battery is improved, the defect that the heat dissipation efficiency is lowin a pure liquid cooling or pure air cooling mode is overcome, and heat dissipation of the battery pack is more uniform and more efficient.

The mixed cotton seed oil refining process treats leached mixed cotton seed oil directly with the evaporating unit in the leaching plant. Leached mixed cotton seed oil is refined based on its special physical and chemical properties through treatment in vacuum condition and pressurized condition successively. The technological process is simple, low in power consumption, convenient in niger and high product quality.

This invention provides a dual-pole plate of an ionic exchange film fuel cell and its application, in which, two ends of fuel flow channel set at the fuel reaction region are connected with the inlet and outlet of fuels, one side of the dual-pole plate is opened with a raw of oxidant inlets and the other side has a raw of outlets connected to each other by the oxidant flow channel passing through the dual-pole plate from a side, sealing grooves are set around the fuel reaction region and the oxidant reaction region and applied by spring sealing pieces, th dual-pole plate can be molded at one run carrying an insulation board, a collection board, a plate of the fuel end, membrane electrodes, dual-pole plates, film electrode, an end board, collector, and insulation board of the oxidant end to be sealed layer by layer to be connected and fastened to form a fuel cell stack.

The invention relates to a fluorine gas purifying filler and a preparation method and application thereof, the filler is a fluoride salt filler, and the fluoride salt is a mixture of one or more of sodium fluoride, potassium fluoride, calcium fluoride, magnesium fluoride, lithium fluoride. The filler is prepared from the fluoride salt and hydrofluoric acid with a concentration of no less than 5% by mixing, reaction, curing, molding, air-drying and roasting, the internal porosity of the filler is 40%-60%, has the characteristics of large porosity and strong skeleton, and has the characteristics of strong adsorption and good purification effect when used in fluorine gas purification, and the preparation method of the fluorine gas purifying filler is simple and easy to implement.

The invention discloses a safety monitoring method and a safety monitoring system based on a flying drone to solve the problem that in the evenings, when a person is assaulted alone with his or her phone grabbed or safety restricted, he or she could not seek for help. The safety monitoring method based on the flying drone comprises: establishing the connection between the flying drone and a control device; receiving by the flying drone the monitoring signal transmitted from the control device; starting a pyroelectric infrared sensor to monitor whether there exists an object under supervision or not in a monitored area; and if there exists such an object, then, transmitting an alarm signal to the control device; and otherwise, continuing the monitoring; and according to the received alarm signal, sending by the control device a prompting signal to the user.

The invention discloses preparation and application of an antibacterial agent slowly released by a microcapsule. The antibacterial agent is prepared from, by weight, 1-2,000 parts of the antibacterialagent, 1-1,000 parts of an emulgator, 1-3,000 parts of an enzyme and 1-10,000 parts of water. The preparation method comprises the following steps that S1, antibacterial agent active matter is addedinto water at the constant temperature, the temperature is kept at 20-30 DEG C, uniform stirring is conducted, the revolving speed is controlled at 80-200 revolutions/minute, and the mixture is sufficiently mixed and dissolved; S2, the long-chain organosilicone emulgator is added, the mixture is uniformly stirred, and the revolving speed is controlled to determine that the layering phenomenon doesnot occur; S3, the enzyme is added into the prepared solution, and the revolving speed is controlled to avoid demulsification; S4, essence is added, uniform stirring is conducted, the revolving speedis controlled at 80-100 revolutions/minute, and sufficient stirring is conducted for 30 minutes. The antibacterial agent solves the problems in the prior art that PHMP of the medium and high molecular weight remains in a fabric and has a continuous antibacterial effect, sterilization components and electrostatic adsorption of the fabric have poor effects, washing with water cannot be conducted frequently, and an existing antibacterial agent does not have an ideal effect when applied to fabrics.

The antifouling acrylate emulsion has hydrophilic functional monomer comprising amino acrylate, N-hydroxymethyl acrylamide and emulsifier composition of sodium dodecyl benzene sulfonate and sodium allyl hydroxypropyl sulfonate, as well as core emulsion comprising Veova and cross-linking monomer. The present invention has new components to form core-shell structure with hydrophobic soft core and hydrophilic hard shell, so that it has easy filming, low water absorption and reduced contamination. The emulsion of the present invention may be used as anticorrosive paint for outer wall and steel structure and can avoid contamination and reach excellent decorating effect.

The invention relates to a production method of dichlorosilane for preparing silane; the method comprises the steps of in a tower kettle of a reaction rectification tower, carrying out disproportionation on a raw material trichlorosilane, carrying out rectification separation and extracting the prepared dichlorosilane through the tower top; the production method is characterized in that reaction and separation are coupled, and catalytic disproportionation is carried out to obtain the dichlorosilane product with the content of more than or equal to 90%, wherein a catalyst is an ionic liquid catalyst. By using the method, dichlorosilane can be prepared simply and efficiently, whole-process materials are in closed cyclic utilization, and the method has no pollution emission and is environmentally friendly.

The invention provides a high-efficiency method for removing leaves from sweet sorghum straws and a device thereof. The high-efficiency method for removing leaves from sweet sorghum straws comprises the following four procedures: a conveying procedure, a sawing up procedure, a procedure of separating stem and leaf mixture, and a procedure of conveying stems. New process methods 'sawing up' and 'blowing method' are used in the method. Compared with device used in the traditional 'straight leaf removal method' of the sweet sorghum straws, the device has the following advantages: 1. simple operation, good effect, high efficiency, being free from influence of thickness of the straws or aerial roots of the straws, being capable of processing bunches of sweet sorghum straws in a short time; 2. simple structure, low cost, convenient and simple operation, easy maintenance, and being fit for popularized generalization; and 3. demultiplied energy consumption, and multiplied production efficiency as stems of the processed sweet sorghum straws are good for following conveying, heating, fermentation and the like links in the process of making fuel ethanol from the sweet sorghum straws. The device also solves the problem that the leaves contain no sugar but water, and a large quantity of leaves are mixed to reduce sugar in fermentation materials, which increases following distillation cost. The device also solves the problem that the leaves contain miscellaneous fungi which increases sterilization difficulty and causes fermentation failure. Therefore, the device is crucial to enhance finished product quality and production efficiency of producing the fuel ethanol from the sweet sorghum straws.

The invention relates to a method for inhibiting powder bed electron beam 3D printing powder from splashing. The method comprises the following steps that first-round electron beam scanning preheatingis carried out on powder in a forming section of a powder bed; second-round electron beam scanning preheating is conducted on powder in a preset area of the powder bed, wherein the preheating currentof each time of second-round electron beam scanning preheating ranges from 5 mA to 40 mA, and the scanning speed ranges from 2 m/s to 20 m/s; and the powder on the preset area after second-round electron beam scanning preheating is melted, and third-round of electron beam scanning preheating is carried out on the powder on the forming section of the powder bed. By the adoption of the method, splashing of the powder is basically avoided in the 3D printing process, and a component obtained after 3D printing is high in density and small in surface roughness.

The invention discloses an AA-MBBR sewage treatment system. The AA-MBBR sewage treatment system comprises a water inlet pond, a water inlet pump, an anoxic MBBR pond, a main reaction pond, a sludge refluxing pump and a secondary sedimentation tank. The water inlet pond is connected to the anoxic MBBR pond via a water inlet tube through the water inlet pump; the main reaction pond is divided into an aerobic MBBR pond positioned in the outer ring and an anaerobic pond positioned in the inner ring; a water outlet tube of the anoxic MBBR pond is connected into the anaerobic pond in the inner ring of the main reaction pond through a pipeline; an aerator tube is arranged at the bottom in the aerobic MBBR pond and is provided with an aerator; a refluxing hole is formed in the bottom of the anaerobic pond; a water inlet hole which communicates to the inside of the aerobic MBBR pond is formed in a position, which is close to the bottom, of the anaerobic pond; a water outlet is formed in the upper part of the outer side of the main reaction pond and is connected into the secondary sedimentation tank via a pipeline; the bottom of the secondary sedimentation tank is connected with a refluxing tube; and the secondary sedimentation tank is connected to the refluxing hole of the anaerobic pond via the refluxing tube through the sludge refluxing pump. The AA-MBBR sewage treatment system is high in nitrogen and phosphorus removal ability and good in effect.

The invention belongs to the field of safety equipment for coal mine production and particularly relates to a coupled inert gas fire prevention and extinguishing technology in a coal mine. The technology includes the following steps of: (1) calculating coupled inert gas injection flow by using the formula Qn=60KeQ0 (C1-C2)/ (Cn+C2-1); (2) burying pipes in a goaf; (3) connecting a low temperature stainless steel hose of a liquid carbon dioxide tanker (15) to a carbon dioxide vaporizer (14); (4) delivering nitrogen to an inert gas coupler (11); (5) coupling gaseous carbon dioxide and nitrogen inthe inert gas coupler (11) to be then continuously transported to a working face the goaf (8) to prevent and extinguish fire; (6) detecting gas in the goaf (8). The coupled inert gas fire preventionand extinguishing technology in the coal mine has the advantages that due to the fact that when the specific gravity of the coupled inert gas is increased to a greater proportion than that of the air,flow in the goaf is slow and not easy to be carried away by air leakage in the goaf; injecting appropriate amount under the control of a carbon dioxide sensor does not endanger the health of workers;when the oxygen concentration in the goaf is reduced below 7%, spontaneous combustion does not occur.

The invention discloses a protective liquid film composition for laser-induced supercritical liquid ablation processing, and a laser cutting process, belonging to the technical field of chemical reagents for semiconductor processing and processing processes. The composition mainly comprises a matrix mixture capable of generating supercritical liquid through laser induction, a coolant, a wetting agent, a defoaming agent and water. During use, the protective liquid film composition is spin-coated on a processed surface of a material, and laser permeates a liquid film, then irradiates the material surface and induces the composition to generate the supercritical liquid which can effectively remove chippings generated by laser ablation, melts accumulated around an action area and a crater height.

The invention relates to an air extraction device (2) comprising an intake opening (4), a downstream air duct for an air flow (L), said air duct extending in a first section through a rotatingly driven fan wheel (6) radially outward and extending in a second section downstream of the outlet openings (5) of the fan wheel (6) such that the air flow (L) is deviated in an approximately axial direction to the fan wheel (6), and runs into an exhaust opening (8). The second section has a lateral wall (10) that is arranged opposite to the outlet openings (5) of the fan wheel (6) at a distance thereto. The aim of the invention is to improve the capacity of the air extraction device. For this purpose, the second section comprises a through-flow compartment (12) arranged in the plane of rotation of the fan wheel (6) which compartment is arranged downstream of the outlet openings (5) of the fan wheel (6), which is radially limited by the lateral wall (10) and in which no air guideways are arranged.

The invention discloses a rainwash resistant pesticide adjuvant composition and application thereof. The rainwash resistant pesticide adjuvant composition comprises, by weight, 1-10% of polysaccharide, 5-20% of polyquaternium, 10-40% of alkyl-polyoxyethylene ester, 10-20% of emulsifier and the balance being solvents. The pesticide adjuvant can be used as a spray additive of herbicides, has excellent hydrophilcity, and has good rainwash resistance function to the herbicides, especially the water-soluble herbicides.

The invention relates to a targeted micro-bubble contrast agent. Cyclic peptide ligands c (RGDyK) and DSPE-PEG are coupled through covalent bonds to synthesize DSPE-PEG-C (RGDyK), so that PEG derivative (PEG-DSPE) connecting arms are inserted between the ligands and micro-bubbles; and then, the targeted micro-bubble contrast agent with the connecting arms is prepared by ultrasonic oscillation homogenization and in a high-speed shearing method. The targeted micro-bubble contrast agent with the PEG derivative connecting arms inserted between the ligands and the micro-bubbles is advantageous for enhancing adhesion between the ligands and receptors, and capable of effectively increasing formed targeted micro-bubble ligand-receptor pairs, so that bonding between the micro-bubbles and target organs is closer and the transfection efficiency of carrier genes, namely the micro-bubbles, can be further improved.

The invention discloses a clamp for the dyeing of a cell glass slide. The clamp comprises a bearing member for bearing a cell glass slide; and a pressing member, which is arranged above the bearing member and is used to tightly press the cell glass slide onto the bearing member; wherein the pressing member is provided with a liquid injection cell, a liquid discharge channel, and a liquid guiding groove, which is arranged between the liquid injection cell and the liquid discharge channel and is upward obliquely arranged. The clamp can quickly separate a dyeing reagent and cells, the production period is shortened, the using amount of dyeing reagent is reduced, and the cross contamination caused by a next reagent for soaking the cells is avoided. The structure of the clamp is simple and the performance is reliable.