122 results about "Powder mixture" patented technology

This invention belongs to the field of photovoltaic recycling, specifically relating to a method for the comprehensive recycling of waste photovoltaic modules, comprising: disassembling waste photovoltaic panels to separate photovoltaic laminates, aluminum frames, and junction boxes; crushing the photovoltaic laminates to obtain photovoltaic crushed material; subjecting the photovoltaic crushed material to a decomposition reaction to break down the EVA adhesive into non-adhesive molecules; sorting the decomposition reaction-treated photovoltaic crushed material to separate glass, plastic backsheets, and copper powder to obtain a silicon powder mixture; dissolving the silicon powder mixture to obtain a silver-containing solution and silicon powder precipitate; separating the silicon powder precipitate and converting the silver-containing solution into elemental silver for recycling. This invention performs in-depth processing based on physical sorting, further purifying the silicon powder while obtaining valuable metallic silver, increasing economic benefits, reducing recycling costs, and achieving efficient and green recycling of photovoltaic modules.

Calendering methods that accurately and / or precisely calender dry electrode films, and systems thereof, are described. The methods and systems are able to control the calendering nip and / or calendering distance between the calendering rollers with and / or without the presence of an electrode film and / or electrode powder mixture such that the variation of the calendering distance is reduced.

Powder mixture for the use as building material in additive manufacturing processes, wherein the powder mixture includes a first powder having powder particles of a first thermoplastic polymer material, and a reinforcement material that is at least partially embedded in the powder particles of the first powder and / or adhered to the surface of the powder particles of the first powder. The second powder includes powder particles of a second thermoplastic polymer material which is the same as or different from the first thermoplastic polymer material. The powder particles of the second powder do not include the reinforcement material or include it only in an amount of at most 50% by weight relative to the amount of the reinforcement material in or on the powder particles of the first powder.

The utility model discloses a granulator, including the work tank, the top intercommunication of work tank has the powder mixture cavity. The utility model discloses adopt this device to control each intelligent conveying valve through intelligent control device, and then control the powder amount of unloading in each storage hopper, and then control powder mixing precision, in order to avoid the powder in storage hopper to gather in the inside of storage hopper and cannot even fall to the powder conveying pipe, and the operator can rotate each stirring rod through the drive assembly, and then the powder in storage hopper is stirred, when the first gear rotates, will drive the slider to reciprocate up and down, enter and drive the support rod and dredging piece reciprocate up and down, when the dredging piece moves up and down, will agitate the powder in storage hopper, after the powder even enters the powder conveying pipe, the powder is conveyed to the powder mixture cavity through intelligent conveying valve, and the device has the advantages of can control powder mixing precision and improve production quality.

The present application relates to the preparation method of thick polycrystalline diamond compact for oil and gas drilling, which comprises the following steps: mixing two or more kinds of diamond powder with impurities removed; sand blasting the cemented carbide substrate; sequentially loading the impurity storage layer, the diamond powder mixture layer, the low-melting-point metal sheet, the cobalt sheet and the cemented carbide substrate into a high-temperature-resistant metal cup; placing the high-temperature-resistant metal cup into a synthetic block and then into a six-surface press; performing two-stage high-temperature and high-pressure sintering, wherein the first stage is sintering at a pressure of 5.5-5.8 GPa and a temperature of 800-1300 DEG C for 60-150 seconds, and the second stage is sintering at a pressure of 6-8 GPa and a temperature of 1490-1580 DEG C for 450-700 seconds; and taking out at room temperature and normal pressure. The impurity storage layer, the low-melting-point metal sheet and the cobalt sheet are arranged, and the high-temperature and high-pressure scanning sintering method is adopted, so that the thickness of the diamond layer reaches 3-4 mm after sintering, and the service life is greatly prolonged.

The application relates to a preparation method of a metal-based ceramic composite material and the metal-based ceramic composite material, and steps are as follows: 1. ceramic particle screening and pretreatment: screening and polishing are sequentially performed on the ceramic particles, and the Al2O3 and B4C powder mixture is uniformly sprayed on the surface of the polished ceramic particles in a thermal spraying mode; 2. ceramic preform preparation: after the pretreated ceramic particles, a bonding agent and a mixed powder are uniformly mixed, the mixture is filled into a mold, one-time solidification treatment is performed, a preliminarily formed ceramic preform is obtained, secondary solidification treatment is further performed, and the ceramic preform is obtained; 3. metal-based ceramic composite material pouring forming: the ceramic preform is placed in a casting cavity, metal liquid pouring is performed, and after cooling, the composite material is taken out; 4. heat treatment: the composite material is sequentially subjected to multi-stage normalizing heat treatment and tempering heat treatment, and the metal-based ceramic composite material is obtained. The application solves the problems of ceramic particle peeling and composite layer cracking of the existing composite material.

The invention relates to the technical field of asphalt mixing station waste powder treatment, and particularly discloses an asphalt mixing station waste powder on-line collection-solidification-granulation integrated treatment method which comprises the following steps: waste powder grading: carrying out on-line negative pressure grading on waste powder generated by an asphalt mixing station; cross-linking detection: detecting the content of asphalt in the fine powder on line; cross-linking modification: adding an organic prepolymer cross-linking agent into the fine powder and introducing waste heat of an asphalt mixing station; mixing the materials: respectively mixing the coarse powder and the modified fine powder with a cement-slag composite curing agent; pressurizing and granulating: granulating the coarse powder mixture and the modified fine powder mixture through a two-stage pressurizing process; and grading and recycling: carrying out waste heat gradient maintenance on the aggregate green body through an asphalt mixing station. According to the method, differential treatment of the coarse powder and the fine powder is achieved through online negative pressure grading, the characteristics of the fine powder are combined with the asphalt content to adapt to crosslinking parameters, and the organic prepolymer crosslinking agent is added, so that the obtained cured product is stable in mechanical property and can meet the long-term use requirement of road engineering.

This invention relates to a dry-process electrode sheet and its preparation method. Without the use of solvents, based on a powder electrode forming method, powdered active materials and powdered binders are mixed and pulverized to prepare a powder mixture with uniform size distribution. Then, the powder binder is fiberized using a twin-screw extruder or open mill to prepare a dry-process electrode sheet film. The target electrode sheet thickness and compaction density are then achieved using a rolling mill. This electrode sheet film can be directly fabricated into a dry-process battery electrode sheet, which can be independently assembled as a catalyst layer in water electrolysis. This invention further includes a dry-process battery electrode sheet combining the electrode sheet film and an electrode substrate, which can be independently assembled as an electrode or membrane electrode in water electrolysis. This invention does not involve solvents, effectively reducing the cost of solvent use and drying processes during preparation.

The application relates to a high-entropy rare earth hafnate ceramic coating material and a preparation method thereof, and belongs to the technical field of high-entropy materials. The phase composition of the coating material is (Y 0.2 Yb 0.2 Ho 0.2 Er 0.2 Tm 0.2 )2Hf2O7, which is a single-phase defect fluorite structure; the raw material powder is fully and uniformly mixed through wet ball milling, and then the raw material powder mixture is alloyed through a solid-phase sintering process to prepare the single-phase coating material, wherein the high-entropy rare earth hafnate ceramic element is uniformly distributed, the thermophysical performance is excellent, the high-temperature phase is stable, the coating material has low thermal conductivity and high thermal expansion coefficient, and has a wide application scene in the field of key high-end equipment thermal protection coating.

Composition and Seal for Electrochemical System and Manufacturing Method. The invention relates to a fluid composition for forming a gas-tight seal for an electrochemical system, characterized in that it comprises a main mineral filler phase and an additional mineral filler phase, the additional mineral filler phase comprising a powdered mixture of vermiculite and steatite, the mixture representing up to 30% by weight of the total weight of the composition. The invention also relates to a seal for an electrochemical cell unit formed from the fluid composition comprising the main mineral filler and the additional mineral filler, as well as a fuel cell or fuel cell component comprising one or more seals according to the invention. Figure for the abstract: Fig. 1

The present application relates to a kind of metal matrix composite prepared by friction stir processing method, including the mixing of metal matrix composite reinforcement and substrate powder, according to the size of stir pin and shaft shoulder in the stir head of friction stir equipment, using milling cutter to open the groove on pure metal mold, the width is greater than the diameter of stir pin, the depth is greater than the length of stir pin;Reinforcement and substrate powder mixture is added to the groove and is maximized compaction, in the processing area of special friction stir welding machine, the center of stir pin of stir head is aligned with the center of groove, is prepared under the processing scheme of multiple passes variable stir head speed, obtains metal matrix composite at the groove of composite plate processing area, the obtained metal matrix composite reinforcement is uniformly distributed, and the mechanical and friction and wear performance is excellent.The present application can automatically prepare a variety of different kinds of metal matrix composite, without determining specific process parameters for different kinds of metal and reinforcement test, and is widely applicable.

The present application relates to graphite electrode production feeding technology field, especially to a kind of graphite electrode production feeding equipment, including support platform, operation display system, material box, horizontal feeding system and vertical feeding system;The present application is aimed at the problem that the end of feeding is blocked or adhered to affect metering and weighing, first, through the continuous rotation of spiral roller, the inside pipe is actively dredged;Combined with the revolution plus rotation movement of wall-sticking scraping unit, the fine powder adhered to the pipe wall is continuously scraped during the conveying process, to prevent the formation of material accumulation layer, forming mechanical dynamic scraping cleaning;Combined with airflow pulse assembly, not only provide continuous air curtain isolation, its periodic high pressure pulse generates micro-impulse wave, effectively shakes the material bridge or soft blockage just formed, forms airflow pulse disturbance protection, the above three aspects work together to solve the end material accumulation problem, realize the high-precision, high-stability conveying requirement of carbon powder mixture in graphite electrode production.

A preheating device (60), an apparatus (100) for treating waste powders (19) comprising the preheating device (60), and a method for heating a mixture of powders (13) by using the preheating device (60). The preheating device (60) is for heating a mixture of powders (13) during the production of steel (82) and / or during the treatment of scrap (49, 83) resulting from steel production (82). The preheating device (60) comprises a heat exchange chamber (69) configured to: receive exhaust gases (15) resulting from steel production (82) and / or from the treatment of the scrap (49, 83), the preheating device (60) being configured to receive the exhaust gases (15) from a melting furnace (28); and transmit heat from the exhaust gases (15) to the mixture of powders (13), so as to heat the mixture of powders (13) by recovering heat from the exhaust gases (15).

This invention discloses a multi-directional flow field electrostatic separator, belonging to the technical field of powder classification equipment, and used in a coal mill. The static separator includes: an inner cone; an outer cone located circumferentially outside the inner cone, with a mounting plate covering the top of the outer cone above the inner cone; an axial guide vane assembly located at the lower part of the annular space formed by the inner and outer cones, used to guide the axial flow of the air-powder mixture entering the annular space; and a radial guide vane assembly located between the mounting plate and the inner cone, used to guide the radial flow of the air-powder mixture from the axial guide vane assembly. In this application, the radial and axial guide vane assemblies cooperate to guide the radial and axial flow of the air-powder mixture, respectively, enhancing the device's ability to control the fineness and uniformity of coal powder and improving the coal powder separation capacity.

A system and method for processing a dry electrode film comprising a roller system, a terahertz measurement device and a dry electrode powder mixture dispenser, are disclosed. The measurement device may comprise a terahertz source and a terahertz sensor. Such terahertz source may be emitted towards an upper and lower surface of the dry electrode film and reflected back towards the terahertz sensor to measure a physical property of the dry electrode film.

The application discloses a kind of manufacturing device and method of high temperature special cable, belong to cable technical field, to solve the problem that existing special cable high temperature resistance and impact resistance is difficult to meet simultaneously;The application is installed mineral mica layer by wire core, mineral mica layer, crosslinked insulation layer, ceramic fireproof layer and flame-retardant sheath, ensure that wire core has good high temperature resistance and fire resistance, while installing crosslinked insulation layer in the peripheral mineral mica layer, further improve the overall heat resistance, finally set up flame-retardant sheath, and flame-retardant sheath is made of low smoke halogen-free flame-retardant polyolefin, wollastonite powder and polytetrafluoroethylene powder mixture, because wollastonite powder has higher heat resistance and reinforcing effect, can improve the overall mechanical strength and high temperature resistance, polytetrafluoroethylene powder has excellent high temperature and self-lubricating performance, can reduce the overall friction coefficient under high temperature, improve its anti-aging and wear resistance.

The utility model discloses a pulverized coal mixing device for blast furnace coal injection, and relates to the technical field of blast furnace smelting. The device comprises a conveying cylinder, a discharging bin fixedly communicated with one end of the top of the conveying cylinder, a grinding box fixedly communicated with the top of the discharging bin and a feeding hopper fixedly communicated with the top of the grinding box, and further comprises a grinding mechanism, a transmission mechanism, a material mixing and conveying mechanism and a vibration screening mechanism. Through the vibration screening effect, blast furnace fly ash and pulverized coal which are fully ground can be effectively screened out, and uniform granularity in the mixing process of the blast furnace fly ash and the pulverized coal can be ensured; the screened mixture of the blast furnace fly ash and the pulverized coal enters the material mixing and conveying mechanism and is fully mixed while being conveyed, so that the mixing effect of the blast furnace fly ash and the pulverized coal is improved; and the using effect of blast furnace smelting using the powder mixture of the blast furnace dedusting ash and the pulverized coal as the fuel is further improved.

A system and method for processing a dry electrode film comprising a roller system, a terahertz measurement device and a dry electrode powder mixture dispenser, are disclosed. The measurement device may comprise a terahertz source and a terahertz sensor. Such terahertz source may be emitted towards an upper and lower surface of the dry electrode film and reflected back towards the terahertz sensor to measure a physical property of the dry electrode film.

1. Name of the product in this design: High-throughput powder and liquid preparation instrument. 2. Application of this design: for the accurate weighing and preparation of various liquid and powder mixtures. 3. The key design features of this product are its overall shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

Method (100) for producing a technical semiconductor substrate comprising the steps of providing (110) a powder mixture comprising a semiconductor powder having a first coefficient of thermal expansion and an additive having a second coefficient of thermal expansion, wherein the second coefficient of thermal expansion is greater than the first coefficient of thermal expansion, producing (120) a polycrystalline semiconductor substrate from the powder mixture by sintering, wherein the polycrystalline semiconductor substrate has a third coefficient of thermal expansion which is greater than the first coefficient of thermal expansion, and depositing (130) a monocrystalline semiconductor layer onto the polycrystalline semiconductor substrate by bonding.

The invention relates to a method for producing a bubble-free X-ray amorphous MAS glass body having a mass of > 3 kg, a surface area / volume ratio of < 1.5 cm ‑1 per 100 cm 3 having less than 5 bubbles with a size of 0.1 mm to 0.2 mm and no bubbles with a size > 0.2 mm, wherein the method has the following method steps: a) preparing a powder mixture having 10 to 40 mol% of MgO, 5 to 30 mol% of Al2O3 and 40 to 70 mol% of SiO2 or precursors of these raw materials and having auxiliary elements and foreign elements, wherein the auxiliary elements are elements of the I main group and / or the II main group and / or the IV main group and / or Fe, wherein the total content of auxiliary elements and foreign elements is set to at least 10 ppm - 300 ppm, in particular at least 30 ppm - 150 ppm, particularly preferably at least 50 ppm - 100 ppm; b) melting the powder mixture prepared in step a); c) cooling the melt produced in step b) and comminuting the cooled melt into particles having a diameter of < 10 mm; d) heating and melting the particles obtained in step c); and e) cooling the melt obtained in step d) in order to obtain a MAS glass body; and f) performing a hot isostatic pressing process on the MAS glass body in order to obtain a bubble-free MAS glass body.

The application provides a stable rubber asphalt preparation method and equipment, wherein the weighed base asphalt and rubber powder are poured into an improved mixing device for mixing, the temperature in the improved mixing device is kept at 150±10 DEG C, and the improved mixing device further comprises at least one material lifting unit for lifting the material at the bottom of the device to the upper part for sufficient mixing to obtain a rubber powder mixture. The stable rubber asphalt preparation method can make the material in the mixing device uniformly mixed up and down, improve the mixing efficiency and the product quality, and through the tank body, the stirring part, the lifting part and the dispersing part, the material in the mixing device is mixed up and down, and the material lifted to the top of the tank body is dispersed into the upper material through the dispersing part, the contact range between the parts of the material is improved, and the mixing efficiency and the product quality are improved.

A method for making a pyrotechnic composition in accordance with an embodiment of the present technology includes flowing metal powder, polytetrafluoroethylene powder, and binder powder in separate respective feed streams toward an extruder. The binder powder includes adhesive material and polytetrafluoroethylene anticaking material coating the adhesive material. The method further includes interspersing the metal powder, the binder powder, and the fluoropolymer powder to form a mixture. This mixture is then subjected to an extrusion process during which the anticaking material coating the adhesive material is disrupted. This releases the adhesive material to bind together the metal powder and the polytetrafluoroethylene powder in the extrudate. The powder mixture includes no solvent at any time between being formed and being extruded, yet the extrudate is well-mixed and cohesive.

To provide a method for producing a multicolored glass-ceramic blank.SOLUTION: The dental glass ceramic blank (10) is produced from a first material powder (18) and a second material powder (20), wherein the first material powder and the second material powder have different colors, and wherein at least one of the first material powder and the second material powder comprises nanoparticles (14) and / or glass ceramic particles (16). In the course of the method, a first material powder and a second material powder are introduced into the mold 22 in order to form a powder mixture agglomerate 26. The powder mixture aggregate 26 is compacted by hot pressing to form a glass-ceramic blank. Furthermore, the invention relates to a multicoloured glass-ceramic blank. The invention relates to the use of a multicoloured glass-ceramic blank as dental material.SELECTED DRAWING: Figure 2

This utility model discloses a sealing device for a circular backrest tube, including a backrest tube body and a pipeline ball valve sealed to the pressure measuring port of the pulverized coal flow pipeline. The sealing device includes a sealing component threaded to one end of the pipeline ball valve and a compression component. This utility model allows for manual opening of the pipeline ball valve, inserting the backrest tube body through the valve into the pulverized coal pipeline. Manual rotation of the tightening ring drives the compression stud to rotate within the placement groove. During rotation, the compression stud extends towards the sealing ring. Under the compression of the compression stud, the narrow opening in the center of the sealing ring undergoes a certain degree of contraction and deformation, thus tightly wrapping around the outer wall of the backrest tube body, achieving a complete seal between the backrest tube body and the pulverized coal pipeline. This prevents the leakage of primary air and the air-powder mixture, thereby making the wind speed measurement of the pulverized coal pipeline more accurate.

The invention discloses a manufacturing process for manufacturing a lithium manganese iron phosphate composite positive electrode particle, which is applied to a positive electrode of a solid-state or solid-state-like battery. The preparation process comprises the following steps: taking a plurality of lithium ion conductor particles, a plurality of LMFP particles, a carbon source and a dispersing agent, and simultaneously putting the materials into a ball mill for mixing to form mixture slurry; the carbon source is an organic compound capable of forming conductive carbon in a reducing atmosphere; then carrying out natural or vacuum drying on the mixture slurry to obtain mixture powder; and then putting the mixture powder into a sintering furnace for anaerobic sintering to obtain the composite positive electrode particles, in an oxygen-free environment, the carbon source in the mixture powder is dehydrated, and the residual carbon element, the residue after sintering and the plurality of lithium ion conductor particles jointly form a conductive layer which coats the outer surfaces of the LMFP particles, so that the composite positive electrode particles are formed; the distribution of the lithium ion conductor particles on the LMFP particles may be a continuous distribution or an island-like particle.

The invention discloses a scrapped battery recycling system which comprises a climbing conveying belt, a battery crushing structure and a tail gas treatment device, inlet and outlet sealing structures are arranged at the upper end and the lower end of the battery crushing structure, the battery crushing structure comprises a high-speed shredding machine and a nitrogen circulation structure, and pressurizing guide parts are arranged at the upper end and the lower end in the high-speed shredding machine; the cracking kiln comprises a cracking furnace body and a material collecting container connected to the discharging end of the cracking furnace body; the front exhaust assembly comprises an exhaust pipe, a physical filtering device, a flame-retardant container and a pyrolysis gas combustion furnace; a closing plate and a traction assembly; the front sorting unit comprises a front-end processing structure used for conveying a mixture of positive and negative electrode fragments, metal particles and black powder, the front-end processing structure crushes the positive and negative electrode fragments in the process of conveying the mixture, and the rear sorting unit comprises a rear-end processing structure connected with the front-end processing structure; according to the invention, various battery decomposition products with high yield can be obtained.

The method for manufacturing the solid electrolyte thin film includes mixing a first precursor for synthesizing lithium lanthanum zirconium oxide, a second precursor for synthesizing lithium aluminum titanium phosphate or a third precursor for synthesizing lithium lanthanum titanium oxide, a polar solvent and a metal oxide containing a doping element to form a mixture. The first precursor includes a lithium source, a lanthanum source and a zirconium source, the second precursor includes a lithium source, an aluminum source, a titanium source and a phosphate, and the third precursor includes a lithium source, a lanthanum source and a titanium source. The mixture is ground to form a powder mixture. The powder mixture is calcined to form a doped powder. The doped powder, a lithium salt and a conductive polymer are mixed to form a slurry. A wet thin film is formed from the slurry. The wet thin film is baked. The solid electrolyte thin film can effectively reduce the interface impedance between the electrolyte and the positive and negative electrodes, and can have better charge and discharge performance when applied to a battery.

The present application relates to a kind of porous dry method electrode preparation methods, active material, powder binder and powder pore-forming agent are added in mixer, after being mixed uniformly, the powder mixture with uniform particle size distribution is obtained by pulverizer, high shear is provided by twin-screw extruder or open mill, powder binder is fiberized so that sheet forming is formed, further by rolling, the electrode sheet film with target compactness and thickness is formed, finally by heating and drying or solution infiltration treatment to the electrode containing electrode sheet film, porous electrode is obtained.The porous dry method electrode preparation method is simple and easy to operate, and the manufacturing cost is low, suitable for industrialized production application.

The invention relates inter alia to a method for operating an apparatus (A) for processing powder material for manufacturing three-dimensional work pieces, wherein the apparatus (A) has at least one process container (20, 100) for providing powder material (10) for the manufacturing process, in particular a powder mixture, for the manufacturing process, wherein before a filling step of the process container (20, 100) a reservoir container (40), containing, in particular fresh, powder material (10) to be filled in the process container (20, 100), is supplied and pressurized with vacuum at a predetermined vacuum level, and the process container (20, 100) to be filled with the powder material (10) is supplied and pressurized with vacuum at a predetermined vacuum level, wherein during the filling step the, preferably fresh, powder material (10) is moved via a transport channel (24.1) from the reservoir container (40) to the process container (20, 100), in particular by means of gravitational forces and / or in particular in presence of the, preferably permanent, vacuum in the reservoir container (40) and the process container (20, 100).