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38 results about "Spontaneous heating" patented technology

Spontaneous heating. [spän′tā·nē·əs ′hēd·iŋ] (chemistry) The slow reaction of material with atmospheric oxygen at ambient temperatures; liberated heat, if undissipated, accumulates so that in the presence of combustible substances a fire will result.

Temperature control method for high-temperature ultrasonic vibration fatigue test

The invention discloses a temperature control method for a high-temperature ultrasonic vibration fatigue test. The temperature control method comprises the following steps: A, obtaining a spontaneous heating stable temperature of a test piece under a target vibration load; b, the initial stable heating power and the initial stable heating duty ratio which enable the test piece to be maintained at the stable target heating temperature are obtained, and the stable target heating temperature is obtained by subtracting the spontaneous heating stable temperature from the stable target temperature; c, executing a temperature initial stabilization stage, applying a target vibration load to the test piece, and heating the test piece by using the initial stable heating power and the initial stable heating duty ratio so as to maintain the temperature of the test piece at a stable target temperature; and D, executing a temperature closed-loop stabilization stage, obtaining feedback stable heating power and a feedback stable heating duty ratio according to the temperature of the test piece, and heating the test piece by using the feedback stable heating power and the feedback stable heating duty ratio, so that the temperature of the test piece is maintained at a stable target temperature.
Owner:AECC COMML AIRCRAFT ENGINE CO LTD

Intelligent peroxide raw material quality management and control system

The invention relates to the technical field of peroxide raw material quality monitoring, and discloses a peroxide raw material quality intelligent management and control system which comprises the steps that a differential heat flow sensing unit continuously measures the temperature difference gradient of a raw material barrel wall and ambient air, and a posture sensing unit monitors the physical motion state; and the edge processing unit performs time sequence integration on the temperature difference gradient when the raw material barrel is static to calculate a degradation degree value, and triggers early warning when the degradation degree value exceeds a threshold value, so that continuous quantitative tracking of the degradation process of the peroxide raw material is realized, and limitation of traditional discrete detection is avoided; measurement authenticity is guaranteed through a dual mechanism of motion state identification and signal filtering, long-term monitoring reliability is guaranteed in combination with a spontaneous heating pulse calibration technology, and a brand new process monitoring mode is provided for chemical storage safety.
Owner:SHAANXI HEHE CHEM TECH CO LTD

A catalyst rapid preparation method based on high-frequency alternating magnetic field atmosphere heating

This invention discloses a rapid catalyst preparation method based on high-frequency alternating magnetic field atmosphere heating, belonging to the field of rapid catalyst preparation technology, including the following steps: Step 1: Support pretreatment and precursor loading: After surface modification pretreatment of the metal support, the catalyst precursor is uniformly loaded onto the surface of the metal support using precision coating technology; Step 2: Modular coil adaptation: A suitable modular induction coil assembly is selected according to the geometry of the metal support, and the metal support loaded with the precursor is fixed in the central region of the coil. The rapid catalyst preparation method based on high-frequency alternating magnetic field atmosphere heating proposed in this invention achieves spontaneous heating inside the metal support through induction heating, without the need for external furnace contact. This not only avoids the corrosion of equipment by corrosive precursor gases, but also significantly reduces dependence on large high-temperature furnace equipment, shortens the preparation cycle, and improves the safety and economy of the process.
Owner:JINGDEZHEN ADVANCED CERAMICS RES CO LTD

Biochar-based metallurgical fossil raw material replaceable product and preparation method thereof

The invention discloses a biochar-based metallurgical fossil raw material replaceable product and a preparation method thereof, and belongs to the technical field of bio-based fuel. The preparation method of the replaceable product comprises the following steps: firstly, uniformly mixing the bio-based carbon particle material, the adhesive and water, and then molding to obtain a solid mixture; drying the solid mixture, and curing the dried solid mixture in the atmosphere of enriched inert gas; and finally, carrying out first-stage cooling and second-stage cooling in sequence to prepare the replaceable product particles. In the drying treatment process, gas generated by drying treatment is sucked under negative pressure; and the sucked gas is subjected to dust removal, VOC removal and drying treatment in sequence, and then inert gas is prepared and used for providing inert gas for curing treatment. According to the invention, free radical components of the material and spontaneous heating and spontaneous combustion risks caused by the free radical components can be reduced.
Owner:NORWAY ENVIRONMENTAL TECH (SUZHOU) CO LTD

Method for producing biomass fuel and biomass fuel

To provide a method for producing a biomass fuel in which spontaneous heating properties are suppressed.SOLUTION: A method for producing a biomass fuel includes the steps of: obtaining a semi-carbonized material having a carbon content of less than 61 mass% by heating biomass to semi-carbonize the same; and oxidizing the semi-carbonized material by heating the same under the conditions of an oxygen concentration of 3 vol.% or more and 13 vol.% or less, a temperature of 120°C or higher and 220°C or lower, and a time of 12 minutes or longer and 240 minutes or shorter.SELECTED DRAWING: None
Owner:IDEMITSU KOSAN CO LTD

Resistance self-heating type solid hydrogen storage reactor

The invention provides a resistance self-heating type solid hydrogen storage reactor, which belongs to the technical field of hydrogen energy storage and comprises a solid hydrogen storage component, a heat management component and an electric heating component. The porous solid hydrogen storage material is a magnesium-based composite material doped with coal ash and slag, has a porous structure and intrinsic conductivity, and realizes rapid and uniform spontaneous heating through a Joule effect; the heat exchange plates and the hydrogen storage materials are alternately distributed, a circulating pump drives a heat exchange medium and a phase change material storage tank to form closed-loop heat management, and heat recovery in the hydrogen storage stage and heat supply in the hydrogen desorption stage are achieved; the electric heating unit supplements Joule heat through an external power supply, and the operation state is controlled in real time in combination with the temperature regulation and control module. The problems of thermal response lag, uneven temperature and high energy consumption of traditional solid hydrogen storage are solved, the hydrogen storage / desorption rate, the cycle stability and the energy utilization efficiency are remarkably improved, and the method is suitable for large-scale long-period hydrogen storage of renewable energy sources.
Owner:INNER MONGOLIA UNIV OF TECH

Self-heating composite synergist as well as preparation method and application thereof

The invention provides a spontaneous heating composite synergist as well as a preparation method and application thereof. The spontaneous heating composite synergist is prepared from the following components in parts by weight: 20 to 40 parts of a component A, 20 to 40 parts of a component B and 30 to 40 parts of a component C, wherein the component A comprises an alkali metal salt inner core and a first silane coupling agent and aluminate coupling agent composite shell layer which coats the outer surface of the alkali metal salt inner core through chemical bonds; the component B comprises an alkaline earth metal oxide core and a second silane coupling agent shell layer which coats the outer surface of the alkaline earth metal oxide core through a chemical bond; and the component C comprises an active metal core and a third silane coupling agent shell layer coated on the outer surface of the active metal core through a chemical bond. The self-heating composite synergist is subsequently applied to in-situ gasification, in-situ dry distillation, superheated steam gasification and supercritical water gasification of deep coal and has a relatively good heat-increasing synergistic effect.
Owner:PETROCHINA CO LTD

Novel graphene heating nozzle

The invention discloses a novel graphene heating nozzle, and relates to the technical field of 3D printing, the novel graphene heating nozzle comprises a nozzle body, the surface of an inner cavity of the nozzle body is sprayed with a high-temperature-resistant insulating coating, and the outer wall of the high-temperature-resistant insulating coating is sprayed with a graphene heating coating; the characteristics of high conductivity, low thermal resistance and high thermal conductivity of graphene are utilized, a self-heating system is formed, the heating and melting speed of a printing material is remarkably increased, and therefore the overall printing efficiency is improved; the problems that a traditional passive heat transfer heating mode is low in heating speed, melting is not sufficient, and breaking is caused are solved; the graphene heating coating has the characteristics of high temperature resistance and friction resistance, and the service life is long; the heating efficiency of excited radiation of the graphene heating coating is higher along with temperature rise, the graphene heating coating can penetrate through the interior of a printing material, the melting speed of the material is increased, the discharging speed is greatly increased, preheating is not needed, instant heating is achieved after electrification, the temperature rise speed is high, and the time cost and the material cost are saved.
Owner:SHENZHEN THIN CONDUCTOR TECH CO LTD

Arsenic passivator and preparation method and application thereof

The invention provides an arsenic passivator and a preparation method and application thereof, and belongs to the technical field of soil purification, the preparation method of the arsenic passivator comprises the following steps: S1, recycling a used spontaneous heating patch, taking out contents, and grinding the contents into powder by using a ball milling process; s2, performing ultrasonic water washing on the powder obtained in the step S1 to remove salt and impurities; and S3, the material obtained after washing in the step S2 is dried and ground through a spheroidal graphite technology, and the arsenic passivator is obtained. The arsenic passivator prepared by the method provided by the invention has the advantages of simple preparation method, low preparation cost and good curing effect.
Owner:NINGBO UNIV

Preparation method of ultramicro carbon-iron alloy material

A preparation method of an ultramicro carbon-iron alloy material comprises the following steps: grinding a high-carbon iron alloy block, spraying the high-carbon iron alloy block into a suspension roaster in an oxygen-enriched environment, carrying out spontaneous heating partial oxidation, cooling the partially oxidized powder, detecting the contents of carbon and oxygen elements, uniformly mixing the partially oxidized powder with unoxidized high-carbon iron alloy powder according to a certain ratio, and carrying out heat treatment to obtain the ultramicro carbon-iron alloy material. And after the reaction is finished, the materials in the furnace are cooled, and the materials are discharged out of the furnace to obtain the ultra-micro carbon-iron-based metal material. According to the method, the characteristic that elemental carbon and iron in the high-carbon iron alloy material can be combusted under certain conditions is utilized, the decarburization and oxygenation conditions are accurately controlled, materials in a suspension state are not sintered, decarburization is uniform, secondary grinding is not needed, a heat source does not need to be additionally introduced, the production cost is effectively reduced, the product quality is improved, and the ultramicro carbon iron alloy material can be produced after vacuum sintering.
Owner:SICHUAN HUASHUHANG NEW MATERIALS CO LTD

Magnetic drive pump with self-heating heat preservation circulation structure

The invention discloses a magnetic drive pump with a self-heating heat preservation circulation structure, and particularly relates to the technical field of magnetic drive pumps, which comprises a base, a pump body, a pump cover, a connecting frame, a motor, an impeller, a pump shaft and an isolation sleeve. According to the magnetic drive pump with the spontaneous heating heat preservation circulation structure, the coil is arranged on the protective cover, magnetic induction lines generated by the coil generate heat on the blades made of the magnetic conductive materials, hot air is conveyed to the heat exchange coil pipe in the rotating process of the fan, a heat preservation medium in the heat exchange coil pipe is preliminarily preheated, and the heat preservation efficiency is improved. The preheated heat preservation medium is conveyed into the first heating pipe or the second heating pipe in the isolation sleeve, when the magnetic drive pump works, the isolation sleeve and the first heating pipe or the second heating pipe installed in the isolation sleeve conduct cutting heating on magnetic induction lines, the first heating pipe or the second heating pipe heats the heat preservation medium in the isolation sleeve, and the heat preservation medium in the magnetic drive pump is heated twice. The temperature rising speed of the heat preservation medium is increased, and heat preservation is better conducted on fluid conveyed by the magnetic drive pump.
Owner:JINGXIAN JINGYE MASCH CO LTD

Self-heating powder mixing device

The utility model discloses a self-heating powder mixing device which comprises a guide plate, a vertical frame plate arranged on the inner side of the guide plate, two guide rails arranged at the top of the guide plate, a slidable processing frame arranged on the guide rails, and a plurality of hydraulic cylinders arranged at the bottom of the inner wall of the vertical frame plate, chaining plates are symmetrically arranged on the outer walls of the two sides of the machining frame, the output ends of the hydraulic cylinders are connected with the chaining plates, the top of the machining frame is open, a material collecting frame is detachably connected to the interior of the machining frame, an electromagnetic sliding rail is arranged on the top of the inner wall of a vertical frame plate, and a supporting plate is connected to the bottom of the electromagnetic sliding rail; a linkage plate is arranged on the electromagnetic sliding rail, and a plurality of mixing structures are arranged on the linkage plate. After raw materials are mixed, the processing frame extends outwards, and then the whole material collecting frame is taken out for subsequent processing, so that streamline type rapid processing is facilitated, and the efficiency is higher.
Owner:JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY

Hot standby method and system of hydrogen production system based on computer

The invention provides a computer-based hot standby method and system for a hydrogen production system, and the method comprises the steps: obtaining temperature detection data and a hot standby operation mode of hydrogen production equipment, and constructing a three-dimensional temperature distribution diagram of the hydrogen production equipment; identifying a target cooling area of the hydrogen production equipment, and constructing a hot standby simulation model of the hydrogen production equipment based on a hot standby operation mode of the hydrogen production equipment, thereby simulating a hot standby operation process of the hydrogen production equipment in a hot standby mode, obtaining equipment operation data of the hot standby mode, and performing hot standby simulation on the equipment operation data of the hot standby mode. Identifying a heating reason of the hydrogen production equipment in the hot standby mode; and on the basis of the heating reason and the target cooling area of the hot standby mode, adjusting the hot standby strategy of each hot standby mode to obtain a target hot standby strategy of the hydrogen production equipment. By adopting the scheme, the spontaneous heating control effect of the hydrogen production equipment can be comprehensively improved.
Owner:SHANGHAI ANTALANGER SYST INTEGRATION CO LTD

Self-heating hand mold

The utility model relates to the field of disposable glove manufacturing equipment, in particular to a self-heating hand mold which comprises an electric rail, a hand mold body and a hand mold base, the hand mold body and the hand mold base are fixedly connected, an electric rail electrode is arranged on the electric rail, and the hand mold body and the hand mold base move in the extending direction of the electric rail; the hand mold body comprises an inner container, a heating layer and an outer layer which are arranged from inside to outside, the heating layer is made of a conductive material, and the outer surface of the inner container is completely coated with the heating layer; the heating layer is electrically connected with an electrode plate, an electric wire and an electrode block in sequence, the electrode block is arranged on the surface of the hand mold base, and when the hand mold base makes contact with the electric rail, the electrode block is electrically connected with an electric rail electrode. According to the utility model, the original integral heating mode is replaced by directly heating the hand mold, so that the heating of the hand mold base, the chain and the transmission equipment and the waste of heat are avoided, and the energy is greatly saved; the heating layer completely covering the hand mold is used for heating the hand mold and the sizing material in a planar form, so that uniform heating is ensured, and the drying quality is good.
Owner:QINGDAO HZL INTELLIGENCE SCI & TECH CO LTD

Natural gas internal combustion engine fuel injector heating method

The invention relates to the field of natural gas internal combustion engine fuel injectors, and particularly discloses a natural gas internal combustion engine fuel injector heating method. Comprising the following steps that S1, the outer side of the ejector is sleeved with a heater, the heater is connected into an ECU to be controlled, and the ECU is controlled in a constant electric mode; s2, presetting a low-temperature parameter value, and starting a heater when the temperature is less than or equal to the low-temperature parameter value and the vehicle is unlocked; and S3, the temperature of the ejector is collected after the heater is started, the temperature is fed back to the ECU, and the heater is closed after the temperature is higher than the low-temperature parameter value. The problems that the ejector is difficult to start in a low-temperature environment, the response speed is low when coil spontaneous heating is adopted, and the ejector is prone to being burnt out are solved.
Owner:CHONGQING KAIRUI GAS AUTOMOBILE

A built-in self-heating food heating agent and a preparation method thereof

The present application relates to the field of chemical heat generating material, in particular to a built-in self-heating food heating agent and a preparation method thereof.The built-in self-heating food heating agent provided by the present application comprises a solid phase reaction agent, the solid phase reaction agent comprises 65-85 parts of magnesium powder, 10-30 parts of iron powder and 2-10 parts of modified auxiliary agent by mass fraction; a liquid phase reaction agent, the liquid phase reaction agent comprises 200-300 parts of a salt aqueous solution with a concentration of 5%-20% w / w by mass fraction.By separating the hygroscopic electrolyte salt which is easy to cause reaction from the solid phase reaction agent completely, the solution is separately packaged.The solid phase reaction agent is only a mixture of magnesium powder, iron powder and modified auxiliary agent, and is not sensitive to air humidity without contacting the salt solution, which fundamentally eliminates the internal micro-battery reaction caused by salt moisture absorption, completely eliminates the safety hazards such as spontaneous heating, bag swelling and explosion during storage and transportation, and significantly prolongs the shelf life of the product.
Owner:NANJING LANJI HEALTH TECH CO LTD

Energy storage spring plate

An energy storage spring plate comprises a single plate, and the single plate is a metal plate formed by combining a plurality of convex structures and concave structures. And the convex structures and the concave structures are continuously and repeatedly arranged. According to the energy storage spring plate, the extrusion between the convex structures and the concave structures in the single plate is mainly utilized to realize the plastic deformation of the single plate, in the deformation process, the elastic potential energy generated by the single plate realizes the self energy storage, the storage time is long, the output is diversified, the influence of the external environment temperature is avoided, and the stability and reliability are realized. The spring plate disclosed by the invention has the advantages of simple structure, no chemical action, self-heating and other defects, safety in use, low maintenance cost, and is particularly suitable for more appropriate storage of photovoltaic, wind energy and abandoned electricity of a power plant, electric energy is converted into rotational energy, then the rotational energy is converted into potential energy by a converter, and the spring plate disclosed by the invention is used for storing; potential energy can be converted into rotating energy through the converter and then converted into electric energy for use.
Owner:柳有根

Fabricated self-heating intelligent wall system and control method thereof

The invention discloses a fabricated self-heating intelligent wall system and a control method thereof, and belongs to the technical field of intelligent walls, the fabricated self-heating intelligent wall system comprises a composite wall module, an intelligent temperature control system and a pipeline integration interface, the composite wall module is formed by conformally compounding a base layer structure layer, a multifunctional composite sandwich structure and a decorative surface layer, each composite wall module comprises a honeycomb aluminum core layer, a graphene heat conduction layer, a flexible heat conduction medium and a flexible ceramic heat conduction film, and each multifunctional composite sandwich structure comprises a spontaneous heating layer, a PCM phase change energy storage layer and a heat preservation sealing layer. Rapid and uniform heating is achieved through the collaborative heat conduction design of the graphene circuit and the honeycomb aluminum substrate, the water and electricity pipelines and the decoration surface layer are integrated in combination with the BIM prefabrication technology, the intelligent temperature control system predicts the heat load based on machine learning, the heating power of all areas is dynamically adjusted, the limitation of step-by-step implementation of traditional decoration and heating is broken through, and the construction efficiency is improved. And a novel wall-mounted instant-heating industrial construction mode is realized.
Owner:XIGEMA ZHIJIA (CHONGQING) TECH CO LTD

Box-type substation operation state early warning method based on multi-modal data

The invention belongs to the technical field of power equipment state monitoring, and discloses a box-type substation operation state early warning method based on multi-modal data. According to the method, infrared thermal imaging, load current and temperature permeation multi-mode data are firstly collected, complete box body internal space thermal field distribution is constructed through a heat conduction inversion and calibration technology, the thermal interaction flux between devices and the spontaneous heating power of each device are accurately calculated, and accurate evaluation of the comprehensive thermal load is achieved. According to the method, thermal stress accumulation rate calculation is innovatively introduced, the insulation residual life consumption rate is evaluated in combination with insulation material characteristics, key early warning target equipment is identified through electrical topology analysis, and finally scientific grading early warning signals are generated based on life estimated values and influence ranges in a two-dimensional mode. The method accurately quantifies the thermal state and life consumption process of the equipment, improves the accuracy and pertinence of early warning, effectively reduces the failure rate, prolongs the service life of the equipment, and improves the reliability of a power distribution system.
Owner:YIFA HLDG GRP

Environment self-adaptive lightning arrester

The invention provides an environment self-adaptive lightning arrester, and belongs to the technical field of lightning arresters, the environment self-adaptive lightning arrester comprises a core body, a wiring end and a grounding end, the outer side of the core body is provided with an isolation layer, and the outer side of the isolation layer is provided with a resistance ring; the wiring end comprises a fixing piece, a containing groove is formed in the fixing piece, the wiring end is provided with a movable conductive assembly, and connection or disconnection of a discharge path of the resistance ring is automatically controlled through environment temperature change or current induction so that self-adaptive discharge can be achieved; through the synergistic effect of the temperature-sensitive gas pressure change and the elastic piece, a discharge path is automatically adjusted, a conductive water film formed in the ice melting period under the ice and snow climate is effectively dealt with, surface flashover is prevented, meanwhile, spontaneous heating ice melting is achieved through the current heat effect of the resistance ring, and the reliability and stability of the lightning arrester in the low-temperature environment are improved.
Owner:NANYANG ZHONGWEI ELECTRIC CO LTD

Instant heating device, water heating device and intelligent closestool

The utility model discloses an instant heating device, a water heating device and an intelligent closestool, the instant heating device uses a water absorbing and heating material for instant heating, so that after common water is input into the instant heating device, the water absorbing and heating material can perform spontaneous heating to heat a heat conduction pipe so as to heat water outside the heat conduction pipe, and a water outlet pipe outputs water overflowing from the heat conduction pipe; the heater heats the water absorption heating material in the water absorption saturation state, so that water released by the water absorption heating material is vaporized into water vapor, and the state of the water absorption heating material is reduced to the state to be subjected to water absorption. Therefore, the water absorbing and heating material directly heats the cleaning water not required by a user but serves as a heat source for heating, so that the user can determine the amount of water injected into the instant heating device according to the heating degree of the required water so as to control the heating degree of the instant heating device, water outside the heat conduction pipe can be controllably heated, and the heating efficiency of the instant heating device is improved. And the user experience is maintained.
Owner:CHAOZHOU MAMMOTH BUILDING MATERIALS TECH CO LTD

Fire protection system

The invention relates to a process for producing a fire protection system, comprising metering a comminuted silicon dioxide raw material and a granulated alkali metal hydroxide into a reactor; adding water in the reactor and mixing the ingredients, resulting in spontaneous heating, until a hot semifinished product is obtained; storing this semifinished product until a homogeneous colloidal aqueous dispersion (4) of the alkali metal hydrosilicate is obtained; applying the homogeneous colloidal aqueous dispersion (4) and a reinforcement (3) between a first substrate (1) and a second substrate (7); pressing or hot pressing the fire protection system into a three-dimensional shape and / or to form a rigid article. The invention additionally relates to a ready-to-use fire protection system comprising a dispersion (4) of an alkali metal hydrosilicate and at least a first substrate (1) and a second substrate (7), between which the dispersion (4) and at least one layer of a reinforcement (3) are provided, wherein the fire protection system is provided in a three-dimensional shape and / or in the form of a rigid article by pressing or hot pressing.
Owner:DOBERL EGON +1

A self-heating aerobic digestion technology for high-concentration organic wastewater

The present invention discloses a self-heating aerobic digestion technology for high-concentration organic waste liquid, which belongs to the technical field of high-concentration organic waste liquid treatment and resource utilization. The present invention utilizes extreme thermophilic bacteria to compound targeted functional bacterial agents, mixes high-concentration organic waste liquid (SS is about 100g / L-150g / L) with targeted functional bacterial agents, and maintains a digestion temperature of more than 80°C for at least 5 days through heat assistance + spontaneous heating during the reproduction and metabolism of extreme thermophilic bacteria. The digestion products can be rendered harmless, reduced in quantity and recycled in 7-10 days, and carbon emissions in the treatment process can be reduced by 15-30%. The present invention subverts the technical bottleneck of traditional extreme thermophilic bacteria for aerobic fermentation of organic waste, saves energy, and realizes high-speed stabilization of high-concentration organic waste liquid.
Owner:TONGJI UNIV

Plaster assembly

ActiveCN224474617UPharmacy medicinePoultice
The utility model relates to medical technology field discloses a kind of plaster components, plaster component includes: plaster paste, including sticking layer, medicine package and heating bag, sticking layer one side is provided with first viscose layer, medicine package is bonded to the side for contacting with skin of first viscose layer, heating bag is fixedly connected with sticking layer, heating bag is filled with spontaneous heating material that contact with air and generate heat;Packaging bag, it is wrapped in the outside of plaster paste, to isolate heating bag and air.The plaster component provided by the utility model is set to heating bag, to facilitate the local temperature of skin to be increased by heat effect, be favorable to make skin pore open, enhance local blood circulation, and then make external medicine better be absorbed by skin and be used, reduce drug resource waste;And by setting packaging bag isolation heating bag and air, to prevent when not using plaster paste, spontaneous heating material in heating bag and air reaction heat generation.
Owner:张东生

Rolling spraying machine and rolling spraying machine heating control method

The invention relates to a rolling spraying machine and a heating control method of the rolling spraying machine, and relates to the technical field of spraying equipment. A rolling spraying machine comprises an inner roller and further comprises a fixed outer roller, the inner roller is rotatably arranged in the fixed outer roller, an annular gap area is formed between the fixed outer roller and the inner roller, an induction coil is fixedly arranged on the outer wall of the fixed outer roller, an alternating magnetic field is generated when the induction coil is powered on, and the inner roller is driven by the induction coil to rotate. And the inner roller generates eddy current for spontaneous heating. The rolling spraying machine heating control method comprises the steps that material information is obtained; obtaining dynamic heating information required by the corresponding material according to the material information; the needed dynamic heating information is analyzed, and heating power information is sent to the eddy current heating control module according to the current moment; and the eddy current heating control module applies an alternating magnetic field with corresponding power intensity to the induction coil fixed on the fixed outer cylinder according to the obtained heating power information. The system has the advantages of being high in reliability, easy to maintain, high in energy efficiency and low in energy consumption.
Owner:NINGBO JINNAI MAGNETOELECTRIC CO LTD

Loss-of-coolant accident nuclear fuel behavior simulation experiment device

The invention relates to the technical field of nuclear fuel accident simulation, and discloses a loss-of-coolant accident nuclear fuel behavior simulation experiment device which comprises a cladding, a core block, an insulating part, a pressurized cooling pipeline and a cooling assembly, the core block is arranged in the cladding, and the top wall and the bottom wall of the core block are connected with an external power source through wires. An insulating part is arranged between the core block and the cladding, and a pressurized cooling pipeline is arranged outside the cladding and connected with the cooling assembly; the fission heat production process of a real nuclear fuel is simulated through power-on spontaneous heating of the pellet, and thermal stress cracking of the pellet can be effectively reduced by combining the synergistic effect of the pressurized cooling pipeline and the cooling assembly, so that in-situ pellet cracking with the same principle as real pellet cracking is realized; a more real pellet cracking form and cladding deformation and fracture conditions can be obtained, and the accuracy and reliability of experimental data are improved.
Owner:SHENZHEN UNIV

Mechanical arm preheating method and system and storage medium

PendingCN120921393AProgramme-controlled manipulatorElectric machinerySpontaneous heating
The invention relates to the technical field of mechanical arm control, and provides a mechanical arm preheating method and system and a storage medium, and the mechanical arm preheating method comprises the following steps that S1, the pose of the tail end of a mechanical arm is fixed; s2, according to the statics equilibrium relation between the tail end of the mechanical arm and the mechanical arm joints, the preheating joint angle of each mechanical arm joint is obtained when the mechanical arm joints reach the first torque output state; and S3, the mechanical arm joint is controlled according to the preheating joint angle, so that a motor of the mechanical arm joint is subjected to stalling spontaneous heating. Motor stalling spontaneous heating of the mechanical arm joint can be achieved, a special external preheating device is not needed, and the preheating cost is low; moreover, the heat loss is less, and the heating efficiency of the lubricating grease is higher; without additional wiring, the problems of pulling and collision of additional lines are avoided, so that the normal work of the mechanical arm is prevented from being influenced.
Owner:GUOCHUANG INNOVATION CENTER OF MOBILE ENERGY (JIANGSU) CO.,LTD.

Preparation method of ultrafine carbon-iron alloy material

A preparation method of ultra-micro carbon iron alloy material, high-carbon iron alloy blocks are pulverized, sprayed into a suspension roasting furnace in an oxygen-rich environment for spontaneous heating partial oxidation, the partially oxidized powder is cooled, and the carbon and oxygen element contents are detected, then the partially oxidized powder is mixed with un-oxidized high-carbon iron alloy powder according to the proportion, and the mixture is uniformly mixed, briquetted, and then put into a vacuum sintering furnace for deep decarburization and deoxidation, after the reaction is completed, the material in the furnace is cooled and discharged to obtain the ultra-micro carbon iron alloy material. The invention utilizes the combustible characteristics of elemental carbon and iron in high-carbon iron alloy material under certain conditions, accurately controls the decarburization and oxygenation conditions, and the material in the suspension state is not sintered, the decarburization is uniform without the need for secondary grinding, and no additional heat source is needed, thereby effectively reducing the production cost, improving the product quality, and producing the ultra-micro carbon iron alloy material after vacuum sintering.
Owner:SICHUAN HUASHUHANG NEW MATERIALS CO LTD