5005 results about "Temperature treatment" patented technology

The invention provides a method of producing a through-hole, a substrate used to produce a through-hole, a substrate having a through-hole, and a device using such a through-hole or a substrate having such a through-hole, which are characterized in that: a through-hole can be produced only by etching a silicon substrate from its back side; the opening length d can be precisely controlled to a desired value regardless of the variations in the silicon wafer thickness, and the orientation flat angle, and also regardless of the type of a silicon crystal orientation-dependent anisotropic etchant employed; high productivity, high production reproducibility, and ease of production can be achieved; a high-liberality can be achieved in the shape of the opening end even if temperature treatment is performed at a high temperature for a long time; and a high-precision through-hole can be produced regardless of the shape of a device formed on the surface of a substrate.

A method and corresponding software for automatically validating a computer platform thermal solution. An application program is employed to selectively execute thermal stress code to cause the platform's processor to dissipate an amount of power corresponding to a predetermined value, such as a thermal design power dissipation value specified by the processor's manufacturer. In one embodiment, tests are performed while operating at this power dissipation level to determine if a thermal overload condition exists, which may be determined by the processor's temperature, an indication that the processor is throttled, or a signal provided by the processor indicating the processor has detected a thermal overload condition. In another embodiment, a thermal resistance value is calculated based on the processor power dissipation, the temperature of the processor, and the ambient temperature of the test environment. In one embodiment the entire validation process is automatically performed by the application program without requiring any extraneous test equipment or temperature probes.

The invention surprisingly finds that when a suitable binder including a suitable filler is used during the high temperature treatment of a curing process, the coating materials of the invention change in such a manner that electrically conducting reactive layers are formed that allow welding and especially spot welding together with the metal substrate even after treatment at temperatures of more than 800 DEG C.

The invention relates to a method for preparing a high-specific surface area graphene material by utilizing strong base chemical treatment and belongs to the technical field of preparation of graphene materials. By reacting strong base with carbon at high temperature to further perform chemical treatment on graphene powder obtained through thermal treatment or microwave irradiation, nano-scale micropores are rapidly and massively corroded on the surface of graphene, and the specific surface area is greatly improved. Meanwhile, the graphene can be reduced through high-temperature treatment; therefore, high conductivity of the obtained material is guaranteed.

The present invention provides a method for dielectric passivating the surface of a solar cell by accumulation of negative fixed charges of a first type at the interface between semiconductor material and a passivating material. According to the invention the passivating material comprises an oxide system, for example a binary oxide system, comprising Al₂O₃ and at least one metal oxide or metalloid oxide which enhances the tetrahedral structure of Al₂O₃, for example, an (Al₂O₃)_x(TiO₂)_1-x alloy. In this way it is possible to combine the desirable properties from at least two different oxides, while eliminating the undesirable properties of each individual material. The oxide system can be deposited onto the semiconductor surface by means of a sol-gel method, comprising the steps of formation of the metal oxide and/or metalloid oxide sol and the aluminum solution and then carefully mixing these together under stirring and ultrasonic treatment. Thin films of the oxide system can then be deposited onto the semiconductor surface by means of spin coating followed by a temperature treatment.

The invention discloses a method for recovering polysilicon ingots, carborundum powder and polyethylene glycol from cutting waste mortar. The recovering method comprises the following steps shown as an attached diagram, wherein the high temperature purification comprises the following steps of: mixing the prepared silicon micro powder with a fluxing agent according to the weight ratio of 1: 0.5-5 into lumps, carrying out high temperature treatment in a high temperature vacuum furnace with the treatment temperature range of 1450-1800 DEG C and the treatment time range of 1-10h; and then carrying out directional solidification on melting-state high purity silicon subjected to the high temperature treatment to obtain the polysilicon ingots; wherein the fluxing agent is selected from one or any mixture of silica, alumina, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, calcium fluoride, magnesium fluoride, sodium fluoride, sodium chloride, potassium chloride and calcium chloride. The invention has the advantages that: the yields of carborundum and polyethylene glycol are high and can reach more than 70-80 percent; and the recovered polysilicon ingots reach the purity of 6-7N and completely satisfy of the requirement for preparing silicon slices of silicon solar cell.

The invention provides a preparation method of a silicon/carbon multi-component composite negative electrode material. The preparation method comprises the following steps: (1) preparing a carboxyl carbon nano-tube by using acid and a carbon nano-tube, or preparing an aminated carbon nano-tube by using the carboxyl carbon nano-tube; (2) oxidizing the surface of nanometer silicon so as to generate a layer of silicon oxide, or aminating slightly oxidized nanometer silicon by using ammonia-containing organosilane under the condition of heating reflux; (3) adding the carboxyl carbon nano-tube and the aminated nanometer silicon, or the carboxyl carbon nano-tube and the slightly oxidized nanometer silicon to an organic carbon source-containing solvent, dispersing and carrying out spray drying-pyrolysis; (4) mixing a material obtained in the step (3) with asphalt, and sequentially carrying out low-temperature, constant temperature and high-temperature heat treatments, thus obtaining a secondary silicon-carbon nano-tube/amorphous carbon composite negative electrode material; and (5) carrying out airflow crushing, grading, adding to the organic carbon source-containing solvent, carrying out spray drying-pyrolysis or spray pyrolysis, and carrying out high-temperature treatment, thus obtaining the silicon/carbon multi-component composite negative electrode material. The silicon/carbon multi-component composite negative electrode material prepared by the method has the advantages of large reversible capacity, designable capacity, good cycle performance, high tap density and the like.

The invention discloses a preparation method of an anode material for a power lithium ion battery. The preparation method comprises the following steps: by adopting petroleum coke ground until the grain size is 1-6mu m, calcined petroleum coke or needle coke as a raw material, adding additives, adding a mixture to a reaction kettle to carry out first high-temperature carbonization coating under the protection of the inert atmosphere, then grinding the mixture with a grinder until the grain size is 5-13mu m, then carrying out superhigh-temperature graphitization at a temperature above 3200 DEG C, adding one or a mixture of petroleum asphalt, coal asphalt and resin to a material obtained after graphitization, and then enabling the mixture to enter a carburization furnace to undergo second coating under the protection of the inert atmosphere to obtain the anode material for the power lithium ion battery, namely a spheroidal artificial graphite material which is formed through bonding after being coated with granules and undergoes two-time coating and three-time high-temperature treatment. The preparation method has the advantages that the discharge rate property of the anode material is improved, the low temperature properties of the anode material are improved, and the latest requirements of the market for the product are further met.

The invention discloses a method for preparing a carbon/carbon-silicon carbide composite material for bearings. The preparation method comprises the following steps: preparing a carbon fiber integral felt of 0.15-0.30g/cm<3> from polyacrylonitrile preoxidized fibers through puncture carbonization, or preparing a non-woven cloth carbon fiber integral felt of 0.4-0.6g/cm<3> from non-woven cloth and a mesh tyre through puncture carbonization in an alternating lamination manner; preparing C/C porous preform with density of 1.35-1.75g/cm<3> by adopting a chemical vapor infiltration (CVI) and resin precursor infiltration and pyrolysis (PIP) comprehensive process, and performing a high-temperature treatment at 2,250-2,600 DEG C in the Ar gas protective atmosphere; and vacuumizing, then introducing Ar gas, heating to 2,200-2,350 DEG C to perform liquid silicon infiltration, and preserving heat for 1.5 hours. The method is a preparation method of the carbon/carbon-silicon carbide (C/C-SiC) composite material with little residual silicon and low abrasion rate for bearings.

The invention relates to a method for pretreating fibers, comprising the following steps of: performing surface activation on fibers by a dopamine hydrochloride biomimetic modification method, and then performing impregnation treatment on the fibers by using impregnation solution composed of rubber latex and phenolic resin, aiming to improve the interface adhesion property of the fibers with rubber so that the fibers are more suitable for tyres, conveyor belts, high-pressure rubber tubes and transmission belts. The method solves the experimental problem caused by high toxicity of isocyanate and avoids damage on the fibers caused by high-temperature treatment; and the process flow is simplified and the production cost is reduced.

The invention belongs to the technical field of nanometer material preparation, and relates to a method for loading nanocrystalline metal oxide or nanocrystalline metal materials by porous carbon. Urea derivatives, saccharides and metal salt can form the characteristics of even mixed solutions at certain temperature, the porous carbon is formed in situ after dehydration and carbonization, and then the nanocrystalline metal oxide or the nanocrystalline metal materials loaded by the porous carbon are prepared through high temperature treatment. According to the method, the raw material ratio, response time, heat treatment temperature and other synthesis condition are changed, and carrying type nanometer materials with the carrying amount, the size of the particle diameter, the crystalline phase and components simultaneously controllable can be obtained. The whole process has the advantages of being easy to operate, environmentally friendly, low in cost and the like, the obtained nanocrystalline metal oxide or nanocrystalline metal materials loaded by the porous carbon have wide application prospects in industrial catalysis, water treatment, electrochemistry and other aspects.

The invention discloses an energy storage battery management system. A distributed three-layer management system is adopted in the system, wherein the management system comprises a bottom BMU (Battery Measurement Unit), a middle BCMS (Battery Cluster Management System) and a top BAMS (Battery Array Management System). The bottom BMU comprises a voltage and temperature measuring module and a charging/discharging balancing module; the middle BCMS is the core of the battery management system and comprises a voltage temperature treatment module, a balance control module, a relay control module, an AD (Analog and Digital) collecting module and a core parameter calculating module; and the top BAMS comprises a battery information gathering module, a system alarm information treatment module, a BAMS-PCS (Battery Array Management System-Process Control System) communicating module and a BAMS-PCS-upper monitoring system communicating module. Information transmission in the three layers of structures in the system is realized by using a CAN2.0B communication protocol; and the communication between the BAMS and an energy conversion PCS system and an upper monitoring system is realized by using a Modbus TCP (Transmission Control Protocol). On account of the special requirement on the battery management system in the field of energy storage, the invention provides the energy storage battery management system which is high in reliability, complete in function, real-time and stable in communication and relatively complete in management system structure.

The invention discloses a preparation method for an ordered mesoporous carbon/tungsten carbide composite material and a supported catalyst thereof. In the method, an organic matter and a tungsten salt are separately used as a carbon source and a tungsten source, and the carbon source and the tungsten source are mixed with a surfactant; and a precursor of the ordered mesoporous carbon/tungsten carbide is synthesized by a solvent-evaporation induced self-assembly method, and then the precursor is subject to high-temperature treatment in the inert atmosphere to form the ordered mesoporous carbon/tungsten carbide composite material. The ordered mesoporous carbon/tungsten carbide composite material prepared by the method has the characteristics of high degree of order, narrow aperture distribution, large specific surface area (greater than 500 m<2>/g) and the like. The invention further comprises a supported catalyst prepared by supporting active components on the ordered mesoporous carbon /tungsten carbide composite material which is prepared by the method; and because of the synergistic effect and the structure effect of the ordered mesoporous carbon/tungsten carbide composite material, the catalyst has higher methanol electro-oxidation catalytic activity than a commercial carbon platinum-ruthenium catalyst.

The invention discloses a molybdenum disulfide-carbon hollow ball hybrid material. The molybdenum disulfide-carbon hollow ball hybrid material has a hollow ball structure; and the hybrid material formed by embedding a single layer of molybdenum disulfide nanosheet or a few of layers of molybdenum disulfide nanosheets into a carbon material is a shell layer of the hollow ball. The invention further discloses a preparation method of the molybdenum disulfide-carbon hollow ball hybrid material. The method comprises the following steps: with amino-modified silica particles as a template, coating the template with an organic pyrolytic carbon material and ammonium tetrathiomolybdate through solvothermal reaction; carrying out high-temperature treatment in an inert atmosphere; and finally removing a silicon dioxide template, so as to obtain the molybdenum disulfide-carbon hollow ball hybrid material disclosed by the invention. The initial lithium insertion capacity of the molybdenum disulfide-carbon hollow ball hybrid material disclosed by the invention is close to 1010mAh/g; and the specific capacity can still be kept at 662mAh/g after 40 repeated charge and discharge cycles.

The invention provides a treatment method of oily sludge, which comprises the steps of: introducing overheated vapor into a high temperature treatment groove to roast the oily sludge so as to evaporate the liquid containing oil and water in the oily sludge to gas; separating the solid granules from the oily sludge and contained in the gas in a gas-solid separator, and conveying the solid granules to a drying machine to be dried and burnt so as to be discharged; condensing the gas separated from the gas-solid separator to liquid state oil and water, separating the liquid state oil and water in an oil-water separator to be respectively recycled, wherein the oily sludge is introduced into the high temperature treatment groove in a pumping manner, the overheated vapor is introduced into the high temperature treatment groove by supersonic jet flow and is vertically collided with the oily sludge. The invention further provides a treatment apparatus of oily sludge for executing the method; the treatment method and treatment apparatus provided by the invention have the advantages of guaranteeing high crude oil recovery, and small water content and oil content of finally generated dry residues.

The invention discloses a pyrolysis amorphous carbon material and a preparation method and application thereof. The pyrolysis amorphous carbon material is shaped as particles, the average grain size of the particles is 1-100 micrometers, a d<002> value is between 0.35 nanometer and 0.44 nanometer, an L<c> value is between 0.5 nanometer and 4 nanometers, and an L value is between 3 nanometers and 5 nanometers. The preparation method comprises the following steps of: adding a hard carbon precursor and a soft carbon precursor into a solvent and fully mixing to obtain a slurry; drying the slurry and crosslinking and curing the slurry for 0.5 to 5 hours in an inert atmosphere with a condition of 200-600 DEG C; carrying out high-temperature treatment for 0.5 to 10 hours in the inert atmosphere with a condition of 1,000-1,600 DEG C; and cooling to obtain the pyrolysis amorphous carbon material. The material is wide in application, and particularly serves as an anode material of a sodium ion secondary battery or a lithium ion secondary battery.