25results about How to "Less severe" patented technology

The invention discloses an intelligent cutter system with a multi-signal sensing function and a manufacturing method of the intelligent cutter system, and relates to the field of intelligent cutting tools for ultra-precision machining. The method comprises the steps that boron ions and sulfur ions are doped in a multi-layer gradient doping mode through a multi-step ion implantation method in a front tool nose area and a front tool face area of the single crystal diamond tool, so that the single crystal diamond tool has the conductivity of a semiconductor; the multi-layer gradient doping mode comprises shallow-layer doping, middle-layer doping and deep-layer doping, and the concentration and depth distribution of boron ions and sulfur ions can be controlled by the multi-layer gradient doping mode, so that the concentration of a tool nose area is the highest; the single crystal diamond cutter with the conduction characteristic of a semiconductor is connected with a signal processing and transmission circuit through a platinum electrode, so that the intelligent cutter capable of sensing force, temperature and vibration at the same time and monitoring the cutting state and the cutter abrasion state in real time is obtained. By means of the scheme, the cutting force, the cutting heat degree and the vibration signals in the cutting process can be accurately detected at the same time.

The invention discloses a sulfur-resistant carbon dioxide methanation catalyst as well as a preparation method and application thereof. A carrier of the catalyst comprises Al2O3 and ZrO2, a carrier modifier is nitrogen-doped mesoporous carbon and / or silicon carbide, active components comprise NiO and MoO3, auxiliaries comprise CeO2 and MnO2, and a coating is a Co-Zn coating. The content of Al2O3 is 10-70 wt%, the content of ZrO2 is 2-15 wt%, the content of the carrier modifier is 1-75 wt%, the content of the active component is 10-50 wt%, and the content of the auxiliary agent is 1-5 wt%. The catalyst is high in reaction efficiency, good in stability, high in selectivity and good in heat resistance; during use, different catalysts are filled in a layered manner, the temperature rise of a bed layer is mild, the hot-spot temperature is low, and a local high-temperature region is avoided, so that sulfur poisoning and sintering inactivation of the catalyst are avoided, the investment and operation cost is reduced, the service life of the catalyst is prolonged, and the operation safety of the device is improved.

The invention belongs to the technical field of potassium formate preparation, and discloses a preparation method of potassium formate for an oilfield chemical additive. The preparation method comprises the following steps: mixing a catalyst, formaldehyde and a first solvent to obtain a first mixed solution; mixing potassium permanganate and a second solvent to obtain a second mixed solution; the first mixed solution and the second mixed solution are mixed, carbon dioxide is introduced at the same time, a reaction is carried out, and potassium formate is obtained; wherein the catalyst comprises a phase transfer catalyst. The preparation method of potassium formate is mild in reaction condition and low in production cost.

This disclosure relates to a negative electrode, a battery cell, a battery device, and an electrical device. The battery cell includes a negative electrode, a positive electrode, a separator, and an electrolyte. The negative electrode includes a composite current collector, which comprises a first metal layer, a second metal layer, and a polymer layer, with the polymer layer located between the first and second metal layers. The polymer layer includes a polymer matrix and an inorganic salt hydrate. The polymer matrix has multiple porous structures, and the inorganic salt hydrate is located within these porous structures. The battery cell of this disclosure can effectively reduce the severity of its thermal runaway reaction, thus reducing the occurrence of catastrophic events.

The utility model discloses a lithium ion battery pole piece roll coated with white glue at the bottom, belongs to the field of batteries, and particularly relates to a lithium ion battery pole piece roll coated with white glue at the bottom. The utility model aims to solve the problems of residual and splashing of active substance particles in the slitting process. The slitting device is composed of a plurality of units to be slit. Each to-be-slit unit is composed of a copper foil current collector, a top white glue layer, a bottom white glue layer and an active substance layer; the bottom white glue layer is arranged in the middle, the active material layers are arranged on the two sides of the bottom white glue layer respectively, the top white glue layer is arranged on the outer sides of the active material layers, and the copper foil current collector is arranged on the outer side of the top white glue layer. The utility model is used for the anode or cathode of the lithium ion battery.

The utility model relates to the technical field of blowers, in particular to a low-noise blower which comprises a shell and a fan, the shell comprises an air inlet, an air outlet and an air duct communicating the air inlet with the air outlet, the fan is arranged in the air duct, and an air gathering section and an air duct middle section communicating the air gathering section with the air outlet are arranged on the side, located at the air outlet end of the fan, of the air duct. At least part of the inner wall of the air gathering section inclines from the air inlet end of the air gathering section to the center axis of the air channel in the flowing direction of airflow in the air channel so as to guide airflow at the air outlet end of the fan to gather towards the middle section of the air channel. The air flow occupies the middle space near the central axis of the air duct, the situation that the middle air flow speed of the air duct is inconsistent with the peripheral air flow speed is avoided, part of peripheral high-speed air flow is prevented from entering the middle space to form turbulent flow, noise caused by middle air oscillation is eliminated, and the flow speed loss of the high-speed air flow is reduced.

The utility model discloses a chemical reaction kettle for promoting rapid mixing reaction of materials, which comprises a reaction kettle body and a sealing cover, the sealing cover is fixedly connected with a connecting cavity, two sides of the upper end of the connecting cavity are fixedly connected with material barrels, one side of each material barrel is fixedly connected with a driving motor, and the output end of each driving motor is fixedly connected with a valve plate. The sealing cover is provided with the connecting cavity and the material barrel, the transparent frame and the valve plate are arranged to control materials to enter the connecting cavity, and then the materials fall into the vibration barrel through the scraping plate, so that the materials are uniformly stirred, and the stirring effect is improved. Meanwhile, the moving block is in contact with the vibrating cylinder, so that the vibrating cylinder can move up and down, discharging is promoted, meanwhile, by accurately controlling the amount of materials entering the material cylinder, the intensity of the magnesium tert-butoxide in the reaction process can be relieved, the instantaneous reaction is reduced, the phenomenon that the local part in the reaction kettle is too thick is reduced, and the mixing efficiency is improved.

The utility model belongs to the field of medicine preparation protection devices, and particularly relates to a dapagliflozin preparation reaction device with a protection function, which comprises a reaction kettle main body, the top of the reaction kettle main body is fixedly connected with a flange connecting disc, and the upper part of the flange connecting disc is fixedly connected with a top cover; through the structural design of a liquid inlet and a liquid outlet formed in the surface of the shell, drainage of a stock solution is facilitated, sliding rods are slidably connected into lantern rings on the two sides of a through pipe in a sleeved mode, springs are connected to the positions, close to the upper portions of the lantern rings, of the surfaces of the sliding rods in a sleeved mode, and when a violent reaction occurs in the device for material flushing, a reaction solution in a guide pipe backflushes a cover plate; secondly, the other end of the guide pipe is located at the position, close to the center point, of the bottom of the reaction kettle main body, so that the effect that the reaction solution flows into the reaction kettle main body from the inner bottom surface of the reaction kettle main body is achieved; the condition of violent reaction caused by large drop of raw materials dropped into the device is reduced.

A thermoelectric chemical oxidation method based on magnetic field regulation and control comprises the steps that a first cylindrical electrode and a second cylindrical electrode are placed in two plating pools with electrolyte respectively, and a conductor wire rod penetrates through the electrolyte along the axes of the two cylindrical electrodes under traction of a winding device; a plurality of solenoids are arranged on the periphery of a plating tank, and the current in each solenoid is periodically and sequentially adjusted at different moments in the thermoelectric chemical oxidation process, so that a rotating magnetic field is generated on the periphery of the plating tank. According to the method, the movement of the plasma in the thermoelectric chemical oxidation process is regulated and controlled through the external magnetic field, the gathering of the plasma in the thermoelectric chemical oxidation process is reduced, the intensity of the plasma is reduced, and non-uniform ablation is avoided.

The invention provides a method for preparing aluminum sol for preparing alumina polycrystalline fibers. The invention prepares the aluminum sol by a two-step method. Firstly, hydrochloric acid is reacted with aluminum element to obtain a clear and transparent precursor solution and then the solution is aged. Aluminum powders of different specifications are mixed in a certain proportion and kept for later use. Aluminum powders of different particle sizes react in different degrees and generate different amounts of heat, thereby controlling the temperature of the reaction environment in the container to fluctuate within a small range. Then, part of the precursor solution is added into a reaction container, and after being heated to a certain temperature, aluminum powder is added through the container mouth for multiple times, and part of the precursor solution is supplemented, thereby effectively reducing the intensity of the reaction between the aluminum powder and the precursor solution in the reaction process, achieving uniformity of the quality of the aluminum sol and stability of the solid content, and providing a raw material with stable performance that improves the product quality of alumina polycrystalline fibers.

The invention provides a preparation method of aluminum sol for preparing aluminum oxide polycrystalline fibers, which is characterized in that the aluminum sol is prepared by a two-step method and comprises the following steps: firstly, reacting hydrochloric acid with an aluminum simple substance to obtain a clear and transparent precursor solution, and aging; the aluminum powder of different specifications is mixed according to a certain proportion for standby application, the reaction intensities of the aluminum powder of different particle sizes are different, the generated heat is different, and therefore the temperature of the reaction environment in a container is controlled to fluctuate within a small range; then adding part of the precursor solution into a reaction container, heating to a certain temperature, adding the aluminum powder for multiple times through a container opening, and supplementing part of the precursor solution, so that the intensity of the aluminum powder and the precursor solution in the reaction process is effectively reduced, and the uniformity of the quality of the aluminum sol and the stability of the solid content are realized; and a raw material with stable performance is provided for improving the quality of an alumina polycrystalline fiber product.

The invention relates to a magnesium-based composite material, a pre-magnesium silicon oxide material, a preparation method and application of the pre-magnesium silicon oxide material and a lithium ion battery. The magnesium-based composite material is composed of a magnesium matrix, MgO and Mg2Si, wherein the MgO and the Mg2Si are distributed on the outer surface of the magnesium matrix. MgO and Mg2Si are uniformly distributed on the outer surface of the magnesium matrix in a granular form; the mass ratio of the magnesium matrix to MgO is greater than 1.71: 1; and the mass ratio of the magnesium matrix to Mg2Si is greater than 2.45: 1. The magnesium-based composite material disclosed by the invention is used as a magnesium source, so that the uniformity of a silicon monoxide pre-magnesium reaction is greatly improved, and the specific capacity and the structural stability of the material can be effectively improved. The magnesium-based composite material and the pre-magnesium silicon oxide material are simple in preparation method, controllable in reaction and free of special environment, and have good operability and industrialization potential.

The invention relates to an artemisia apiacea-containing penetration enhancing composition with skin cell repairing and relieving effects, and a preparation method and application thereof, and belongs to the technical field of cosmetics. The research finds that the anti-inflammatory effect generated by only inhibiting an upstream anti-inflammatory path of an NF-kappa B channel is limited, and the anti-inflammatory effect can be remarkably enhanced by blocking a downstream conduction chain while inhibiting the NF-kappa B channel. On the basis, through the artemisia apiacea extract and the flos magnoliae extract, an upstream anti-inflammatory path is inhibited, recruitment and infiltration of inflammatory cells are reduced, a downstream conduction chain is blocked, and the anti-inflammatory effect is synergistically improved. Besides, through cooperation of the oat kernel oil, the jasmine flower oil and the squalane, on one hand, the solubility of fat-soluble active matter is improved, on the other hand, the composition can participate in repairing, stabilizing and optimizing the lipid structure of the skin cuticle, synchronously open the skin fat-soluble channel and convey the active matter more efficiently, and therefore the excellent relieving, repairing and stabilizing effects are achieved.

The application provides a low-nitrogen burner compatible with blast furnace gas and natural gas, and belongs to the technical field of low-nitrogen combustion of industrial kiln and furnace, and comprises a burner brick, a heat storage component and a natural gas lance; the burner brick is provided with a gas injection port, an air injection port and a natural gas injection port; the gas injection port and the air injection port are arranged at intervals along a first direction; the air injection port and the natural gas injection port are arranged at intervals along a second direction perpendicular to the first direction; the heat storage component is provided with a channel for the combustion-supporting air and the blast furnace gas to flow through, and is used for absorbing the heat of the kiln and furnace to heat the gas; the natural gas lance is communicated with the natural gas injection port. During combustion, the combustion-supporting air, the blast furnace gas and the natural gas are mixed and mixed at a position far away from the burner brick and entrain the kiln flue gas, so that the reaction intensity is reduced. The low-nitrogen burner provided by the application realizes delayed mixing and flue gas entrainment by using heat storage preheating and jet space separation, reduces the emission of thermal NOx, is compatible with blast furnace gas and natural gas, and is stable, efficient and reliable in combustion.

A thermoelectric chemical oxidation device based on magnetic field regulation and control comprises a plating tank, electrolyte is arranged in the plating tank, the plating tank comprises a plating tank I and a plating tank II, a cylindrical electrode I and a cylindrical electrode II are placed in the two plating tanks respectively, and a conductor wire rod penetrates through the electrolyte along the axis of the cylindrical electrode under traction of a winding device. A plurality of solenoids are distributed around the plating tank, and the magnitude of current in each solenoid is periodically and sequentially adjusted at different moments in the thermoelectric chemical oxidation process, so that a rotating magnetic field is generated around the plating tank. According to the thermoelectric chemical oxidation device based on magnetic field regulation and control, movement of plasmas in the thermoelectric chemical oxidation process is regulated and controlled through the external magnetic field, gathering of the plasmas in the thermoelectric chemical oxidation process is reduced, the intensity of the plasmas is reduced, and uneven ablation is avoided.

The present invention belongs to the technical field of cast iron casting, and discloses a method and application for forming the main lubricating oil channel of a ductile iron diesel engine body. A bottom-pouring open pouring system with a filtering device is used to purify molten iron, and a shrinkage feed riser is set at the hot node of the main lubricating oil channel and a chiller is used in combination to balance the temperature field of ductile iron. The chemical composition before the furnace is determined according to the principles of high carbon equivalent and high carbon and low silicon, reasonable packaging, multi-stage inoculation, controlled time, good spheroidization, thorough slag removal, and rapid pouring parameters to achieve internal densification of thick and large hot nodes and eliminate shrinkage and slag inclusions in the main lubricating oil channel of the engine body. The present invention is conducive to achieving basic balance of the temperature field of ductile iron. The present invention ensures that the molten iron has high quality, achieves internal densification of thick and large hot nodes, eliminates the quality risk of shrinkage and slag inclusion defects in the main lubricating oil channel of the engine body, and solves the shrinkage casting defects of the main lubricating oil channel of a complex ductile iron engine body.

The invention discloses an atomization device and an electronic cigarette, the atomization device comprises a shell, an oil storage cavity is formed in the shell, the oil storage cavity is used for storing an atomization matrix, and a mist outlet pipeline is arranged in the oil storage cavity; the atomization assembly is arranged in the oil storage cavity and communicates with the mist outlet pipeline, the atomization assembly comprises a supporting piece, an oil guide piece and a heating piece which are sequentially arranged in a sleeving mode from outside to inside, a liquid inlet hole is formed in the supporting piece, and the atomization matrix enters the supporting piece through the liquid inlet hole and makes contact with the oil guide piece and the heating piece; the sealing piece is arranged on the supporting piece, and the sealing piece can deform according to the temperature so as to open or close the liquid inlet hole; the heat preservation cover is fixed to the supporting piece and covers the periphery of the sealing piece. According to the application, more accurate and sensitive liquid inlet control of the atomization assembly can be realized through related arrangement of the heat preservation cover.

The invention provides a catalyst for preparing glyoxal from ethylene glycol. The catalyst comprises the following components in percentage by weight: 45-55% of a main catalyst, 25-35% of a cocatalyst and 10-30% of a carrier, wherein the main catalyst is at least one metal of IB and VIII or an oxide thereof; the cocatalyst is at least one metal of IIB and VIB or an oxide thereof; the carrier is at least one of aluminum oxide and silicon oxide; before the catalyst is used, the catalyst is reduced firstly, and oxides contained in the main catalyst and the cocatalyst are reduced into metal elementary substances. The invention also discloses an application of the catalyst in preparation of glyoxal through ethylene glycol dehydrogenation. The aluminum source and the silicon source in the carrier precursor are colloidal, part of the main catalyst and the auxiliary catalyst are exposed on the surface of the carrier pore channel, the main catalyst and the auxiliary catalyst form a uniformly dispersed dispersion phase, the aggregation phenomenon does not exist, the dehydrogenation reaction of ethylene glycol can be mild, and the conversion rate and the selectivity of glyoxal can be improved.

The invention discloses a methanation catalyst suitable for high-concentration carbon dioxide, which comprises the following components in percentage by mass: 12-85% of carrier, 1-75 wt% of carrier modifier, 10-50 wt% of active component NiO and 1-5 wt% of assistant, and the sum of the mass percentages of the components is 100%. The invention also provides a preparation method and application of the methanation catalyst suitable for high-concentration carbon dioxide. The invention provides a method suitable for methanation of high-concentration carbon dioxide, and provides a series of carbon dioxide methanation catalysts and a catalyst filling method which is simple in structure, high in reaction efficiency, mild in bed temperature rise, low in hot-spot temperature and capable of avoiding generation of a local high-temperature area. Therefore, the problems of sintering inactivation of the catalyst, low hydrothermal stability, short service life of the catalyst, poor operation safety of the device and the like are solved.

The present application relates to a skin cell soothing and repairing composition containing artemisia and its preparation method and application, and belongs to the technical field of cosmetics. The present application finds that only by inhibiting the upstream anti-inflammatory pathway of the NF-kappa B pathway, the anti-inflammatory effect is limited, while inhibiting the NF-kappa B pathway, the downstream transmission chain is blocked, and the anti-inflammatory effect is significantly enhanced. Based on this, the present application inhibits the upstream anti-inflammatory pathway by artemisia extract and jasminum officinale extract, reduces the recruitment and infiltration of inflammatory cells, blocks the downstream transmission chain, and synergistically improves the anti-inflammatory effect. In addition, the present application cooperates oat kernel oil, jasmine flower oil and squalane, on the one hand, improves the solubility of fat-soluble active substances, on the other hand, participates in the repair, stabilization and optimization of the lipid structure of the skin cuticle, synchronously opens the skin fat-soluble channel, and more efficiently transports active substances, thereby realizing excellent soothing, repairing and stabilizing effects.

The utility model discloses a current collector, a battery monomer and a power device, the current collector comprises a foil material, the foil material is provided with a through hole, and the through hole is filled with a thermosensitive insulating material; the surfaces of the two sides, in the thickness direction, of the foil are coated with the first coating, and the first coating is configured to generate inert gas under the preset condition; and the second coating is coated on the surface of one layer, far away from the foil, of the first coating. According to the current collector disclosed by the utility model, the first coating capable of generating inert gas at high temperature is coated on the current collector, so that the pressure in the battery cell is increased, the anti-explosion valve can be opened in advance for heat dissipation, the violent degree of thermal runaway in the battery cell and the explosion risk are reduced, and the safety coefficient in the battery cell is improved; and the thermosensitive insulating material melts under the influence of temperature rise, expands in volume, flows out of the through holes and covers the surface of the foil, so that the surface of the foil is insulated, and the condition of short circuit is avoided.

The invention discloses a method for safely producing musk ketone, and relates to the technical field of musk ketone production. The preparation method comprises the following steps: preparing chlorinated tert-butane, then preparing 1, 3-dimethyl-5-tert-butylbenzene, then preparing 2, 6-dimethyl-4-tert-butyl acetophenone, then carrying out nitration reaction on the 2, 6-dimethyl-4-tert-butyl acetophenone and a mixed acid solution through a silicon carbide microchannel, and finally purifying to obtain the musk ketone. According to the method, the musk ketone is synthesized through the silicon carbide micro-channel reaction, the method has the advantages of being short in reaction time, low in reaction temperature, convenient to operate and high in yield and yield, and the yield of the musk ketone can be remarkably increased and can reach up to 88.41%.

The invention provides an acetyl rectification residual liquid treatment method. The method comprises the following steps: uniformly laying a sawdust layer in a reaction container; saw dust and slaked lime are uniformly mixed and stirred to form a mixture, and the mixture is flatly laid on the saw dust layer in the reaction container; covering a layer of plate frame sludge on the uppermost layer of the reaction container; finally, the reaction container added with the auxiliary materials is moved to a closed reaction room and covered with a gas collecting hood, and a pipeline is connected to the gas collecting hood and connected into an induced draft system of an incinerator; inserting a waste liquid pipeline into the reaction container; and pumping the acetyl rectification residual liquid into the reaction container for auxiliary material reaction. According to the method, slaked lime is added for treatment before incineration, acid elements (sulfur, chlorine, phosphorus and the like) in the slaked lime can react with Ca < 2 + > to generate stable divalent salt, the divalent salt can be removed in an incineration hearth in a slag incineration mode during later incineration, and low-boiling-point sylvite or sodium salt is prevented from being formed and entering the rear end of an incineration system boiler to be scaled and blocked; and the stability and continuity of system production are greatly improved.

The invention relates to an anti-corrosion treatment process for a locally encapsulated magnesium alloy, and belongs to the technical field of locally encapsulated magnesium alloy surface treatment. According to the method, dirt and an oxide layer on the surface of the magnesium alloy are effectively removed through sand blasting treatment, the surface roughness is improved, a good adhesion foundation is provided for subsequent electrochemical treatment, and the corrosion resistance of the magnesium alloy is remarkably improved through an oxide film formed by components such as silicate in the electrolyte on the surface of the magnesium alloy. According to the invention, the problem of glue burning at a glue coating part is solved by increasing the content of fluoride salt in an alkaline silicate system and introducing a phosphate additive. The concentration of the fluoride salt is larger than 10 g / L, the content of sodium fluoride is increased, the intensity degree of the arc discharge process can be reduced, generated electric arcs are finer, local electric arc energy is lower, generated heat is more dispersed, the heat is more easily taken away by liquid medicine, and then ablation of plastic at the rubber coating position caused by heat accumulation is avoided.

The present invention relates to the field of ultrasonic welding technology, and in particular to an ultrasonic welding device and welding process for automotive accessories. In view of the problem that when the existing ultrasonic welding device is used to weld the terminal, the copper wire between the welded part and the unwelded part of the terminal undergoes severe deformation in a short distance and is prone to breakage. It includes: an operating table, the operating table is equipped with an electric mechanical arm; an ultrasonic welding head, which is installed on the electric mechanical arm; a soldering sheet, which is installed on the ultrasonic welding head, and the soldering sheet is in an inverted T shape, and the middle part of the T-shaped horizontal part is squeezed and matched with the ultrasonic welding head. The present invention adds a soldering sheet on the lower side of the ultrasonic welding head to increase a transition area between the welded part and the unwelded part of the terminal, so as to reduce the severity of the deformation of the copper wire between the unwelded part and the welded part of the terminal, thereby increasing the overall tensile strength of the welded part of the terminal.