108results about How to "Guaranteed low temperature" patented technology

The invention belongs to the technical field of lithium-ion batteries, and particularly relates to a method for enhancing the safety of a lithium-ion battery. The method comprises the steps as follows: a microcapsule is prepared; the microcapsule comprises a capsule core part and a capsule shell part; the capsule core part is coated with the capsule shell part; the capsule core part is a fire retardant for lithium ions; the fire retardant is coated with the capsule shell part to form the microcapsule; the microcapsule is mixed into a solution containing an isolating membrane protecting agent; the surface of an isolating membrane is evenly coated with the solution mixed with the microcapsule; the isolating membrane is used as the isolating membrane for the lithium-ion battery after being dried; and the treated isolating membrane is assembled and applied to the lithium-ion battery in a winding or laminating manner. The method has the beneficial effects that the fire retardant is coated with the microcapsule and is fixed on the surface of the isolating membrane, so that the viscosity of an electrolyte is not affected; the rate and the low-temperature performance of the battery are ensured; protective reaction can be relatively quickly made for the battery when thermal runaway is generated; and the safety improvement effect on the battery is relatively significant.

The invention discloses a wet polyurethane resin with high flexing resistance, high wear resistance and high peeling strength, and a preparation method thereof. During a synthetic process of the polyurethane (PU) resin, proper soft polyurethane segment and hard polyurethane segment materials and a brand-new synthesis process route by quasi prepolymerization are selected to prepare the wet polyurethane resin based on fully considering effect of separate soft and hard segment structure, crystallinity and intermolecular cohesive energy density distribution of the PU resin on aggregation structure relationship formed by coagulation of PU resin solution in dimethylformamide (DMF) aqueous solution. The wet PU resin with high flexing resistance, high wear resistance and high peeling strength fully solves the defect that the existing common PU resin can not reach three performance indexes which are high flexing, high wear resistance, high peeling strength at the same time. Synthetic leather made from the wet PU resin with high flexing resistance, high wear resistance and high peeling strength can meet three performance indexes of high flexing resistance, high wear resistance, high peeling strength at the same time, and can greatly improve durability of shoes products.

The invention discloses a target for manufacturing a transparent conductive film. The target is AZO ceramics, wherein the content of Al element ranges between 1 at percent and 10 at percent, and the balance is ZnO. The invention also discloses a method for manufacturing the transparent conductive film and a method for manufacturing a transparent conductive electrode. The invention manufactures a binary ceramic target through replacing In and Sn which are scarce and expensive by Al and Zn which are abundant, and deposits a film on a substrate by a method of magnetron sputtering or electron beam evaporating AZO target. The product is used as an FPD transparent conductive electrode after photolithography and etching. The method can reduce cost and obtain the transparent conductive film and the transparent conductive electrode which are low in resistivity, and good in visible light transmittance and in resistance of reduction of plasma.

The invention discloses a sectional binary current lead structure on the basis of conduction cooling. The sectional binary current lead structure is characterized in that a copper lead portion of a current lead is of a sectional variable-cross-section structure, a constant-temperature connecting portion of the copper lead portion is thick, a high-temperature superconductor connecting lead end of the copper lead portion is thin, a connecting portion of the copper lead portion is in conical transition, and a superconductor lead portion of the current lead is of an epoxy resin fixed assembly structure. The sectional binary current lead structure has the advantages that heat leakage of the current lead can be greatly reduced owing to the sectional variable-cross-section structure, and the sectional binary current lead structure is favorable for machining; a joint of a common conductor and a superconductor is optimally designed and is refrigerated by a primary cold head of a refrigerator, aluminum nitride (AlN) is used as an insulating heat-conduction material, the cross section of the aluminum nitride is maximized, only the section side of a part, which is close to the cold head, of a copper lead keeps connected with a superconductor lead, accordingly, contact heat resistance of the joint is low, heat leakage can be reduced, a good cold-conduction effect can be realized, and quench at the joint can be effectively prevented.

The invention discloses a lithium ion positive electrode coating and a lithium ion battery. A modified lithium iron phosphate material is selected as a positive electrode active material of the lithium ion positive electrode coating, and manganese, cobalt, nickel and other elements are doped, so that the impedance of lithium iron phosphate is reduced, the electronic conductivity and lithium ion conductivity of lithium iron phosphate are improved, and free and rapid migration of lithium ions is realized under a low-temperature condition; the conductive adhesive is uniformly dispersed among thepositive active substances and between the positive active substances and the current collector to play a role in adhesion; the conductive binder has lithium carboxylate and hydroxyl lithium functional groups, so that the conductive binder has conductivity; the conductive adhesive and the conductive material are fully and uniformly mixed by ultrasonic waves, so that the conductivity is improved; and a complete and dense three-dimensional conductive network is formed under the synergistic effect of a conductive agent added in the homogenizing process, so that the resistance of the lithium ion positive electrode coating is reduced, and the low-temperature discharge performance of the lithium ion battery taking the lithium ion battery positive plate coated with the lithium ion positive electrode coating as the positive electrode is improved.

The invention provides a splicing container for retaining freshness. The container for retaining freshness comprises a container body for retaining freshness and a container cover matching with each other. The container body for retaining freshness comprises a bottom surface and a side wall. The side wall is of a double-layer structure with an inner side wall and an outer side wall. The inner side wall, the outer side wall and the bottom surface form a cavity for containing thermal insulation materials. The inner layer side wall is formed by splicing inner-layer boards for retaining freshness, and the outer side wall is formed by splicing outer-layer boards for retaining freshness. The inner-layer boards for retaining freshness, the outer-layer boards for retaining freshness and the bottom surface are all spliced to form the container body for retaining freshness. The inner-layer boards for retaining freshness, the outer-layer boards for retaining freshness and the container cover are all formed by waterproof and breathable particles and hydrophobic bonder by means of bonding and curing. Gaps through which gaseous molecules can permeate but liquid water molecules cannot permeate are formed between adjacent waterproof and breathable particles. The splicing container for retaining freshness can be installed in the field as required by the scale and has a good food freshness retaining effect.

The invention discloses a bearing seat inner hole abrasion remanufacturing spray repair method and belongs to the technical field of bearing seat repair. Through the steps of bearing seat inner hole surface pretreatment, preheating before spraying, spray material preparation, supersonic spraying and coating processing, a NiCr or NiAl material is selected for spray material priming, the problem that the material thermal expansion coefficients of an abrasion-resistant working layer and a bearing seat inner hole basic layer are not matched can be solved, thus, the thermal stress caused by mismatching of the expansion coefficients of the working layer and the bearing seat inner hole basic layer is reduced, and mechanical matching and physical compatibility of the working layer and the bearing seat inner hole basic layer are improved; and a WC-12Co composite coating or a NiCr-Cr3C2 composite coating is used as the working layer. Through repair step optimization, multicomponent alloy coating compositions and distribution, the good erosive abrasion resistance is achieved, and the problems of high mechanical repair cost of bearing seat abrasion and large shrinkage percentage of spraying coatings are solved.

The invention discloses a magnetic suspension type gluing machine with a quantitative glue dripping function. The magnetic suspension type gluing machine with the quantitative glue dripping function comprises a shell, a quantitative glue dripping mechanism, a magnetic suspension electric spindle, a tray and a negative pressure adsorption mechanism, wherein the quantitative glue dripping mechanismis mounted at the top end of the shell; the magnetic suspension electric spindle is mounted in the shell; the tray is mounted at the top end of the magnetic suspension electric spindle; and the negative pressure adsorption mechanism is mounted at the top end of the magnetic suspension electric spindle and is positioned below the tray. A substrate is placed on the tray, negative pressure is generated at the bottom of the substrate according to a negative pressure adsorption principle to adsorb the substrate, the magnetic suspension electric spindle drives the tray to rotate, quantitative glue dripping of the quantitative glue dripping mechanism is implemented above the substrate, and therefore, homogeneous coating is realized.

The invention relates to the field of illuminating and discloses a light-emitting diode (LED) bulb. The LED bulb comprises a lamp cap, wherein a shell is fixed at the lower end of the lamp cap; the lower end of the lamp cap is connected with a radiating fin; the radiating fin is connected with a heat pipe; the condensation end of the heat pipe is connected with a radiating ring; the heat pipe is positioned in the cavity of the shell; a metal lamp panel is fixed at the lower end of the heat pipe; and the metal lamp panel is provided with an LED which can be electrified to emit light. Heat pipe technology is applied to the LED bulb, so that the problem of radiating is solved, integration and high power of the LED bulb are realized and the popularization of the LED bulb becomes possible.

The invention discloses a fresh blueberry fruit picking, storage, transportation and selling integrated preservation method. According to the method, small baskets matched with a blueberry storage, transportation and selling microenvironment air-regulating preservation box are utilized for picking blueberry fruits with the 80-90% ripeness; the blueberry fruits are pre-cooled for 4-8 hours at 0-5 DEG C within 2-6 hours after being harvested, and every two small baskets are put in the preservation box; a physiological regulation preservation strip is placed in a bottom transverse groove of the box body, then a special matched coolant bag is dipped into clear water and then put in a fixed position between every two baskets, and the bottom of the special matched coolant bag is in sufficient contact with the physiological regulation preservation strip; then a shakeproof biological preservation pad is placed on every two small baskets and then tightly covered with an upper cover, and stacking for storage is conducted; the blueberry fruits are periodically taken out of a warehouse, and then a cold-chain logistics vehicle is utilized for conveying the blueberry fruits to commission sale site refrigeration houses, or the blueberry fruits are directly sold in low-temperature containers, wherein the blueberry fruits can be stored for 6-10 weeks at the temperature of 0 DEG C, and can be stored for 1-3 weeks at the temperature of 8-10 DEG C; finally, the blueberry fruits are put in domestic refrigerators, and the preservation period is 1-7 days. By means of the preservation method, the problems that after the blueberry fruits are picked, due to repeated transfer, the bloom of the blueberry fruits is lost, and the storability is lowered accordingly can be solved.

The invention relates to a compression roasting furnace for producing high-purity graphite. The compression roasting furnace comprises a heating and roasting furnace body, and a furnace cover which is arranged above the heating and roasting furnace body, wherein the inner wall of the heating and roasting furnace body is provided with a thermal insulation layer, a product crucible container is arranged on the inner side of the thermal insulation layer, a heating coiled tube is arranged on the outer wall of the product crucible container, a cooling liquid thermal insulation layer is arranged on the outer side of the heating and roasting furnace body, a pressure container is arranged on the outer side of the cooling liquid thermal insulation layer, and pressure-preservation blocks are respectively arranged above and at the bottom of the pressure container. When a production adhesive volatilizes, the compression roasting furnace disclosed by the invention always heats under the certain pressure, a coking value reaches 83-90%, the production period can be shortened by 15 days, the yield reaches 98%, the traditional negative-pressure roasting coking value is up to 68-72%, the production period is 35-50 days, and the yield is up to 85-90%; and compared with the prior art, the compression roasting furnace disclosed by the invention is remarkably better than the traditional negative-pressure roasting furnace.

The invention relates to an adjustable pad structure used in a high-temperature side bearing cavity of an engine, and the adjustable pad structure can be widely applied to such fields as ground-based gas turbines, aero-engines and the like. A bearing, an adjustable pad and a sealing labyrinth ring which are arranged on a turbine shaft in a sleeving manner are arranged in the high-temperature side bearing cavity of the engine, one end surface of the adjustable pad is propped against the sealing labyrinth ring, the other end surface of the adjustable pad is propped against a bearing track inner ring, and a hot-end turbine rotating part is arranged on the inner side of the sealing labyrinth ring. The adjustable pad structure is characterized in that a plurality of toothed grooves are formed at least in the end surface, propped against the bearing track inner ring, of the adjustable pad. Compared with a traditional adjustable pad, the adjustable pad structure provided by the invention has the advantages of simple structure, low processing cost and complete function, can achieve dual effects of reducing heat conduction of high-temperature parts and providing lubricating oil required by cold start of the engine, can control the temperature of the bearing inner ring more effectively and meets the demand for supplying the lubricating oil required by cold start of the engine.

The invention provides a fresh-keeping container and a fresh-keeping method. A main body of the fresh-keeping container is in a dual-layer structure. A cavity for containing heat-insulating materials is formed between an inner layer and an outer layer. The inner layer and the outer layer of the fresh-keeping container and a container cover are all formed by waterproof air permeable particles and hydrophobic bonding agents in a bonding mode. A pore is formed between adjacent waterproof and air permeable particles, and the pore allows a gaseous state molecule to pass through and prevents a liquid water molecule from passing through. The heat-insulating materials comprise one or more of hydrophilic light puffing material, light thermal insulation foaming particles or natural sand. According to the fresh-keeping container and the fresh-keeping method, the main body of the fresh-keeping container is in the dual-layer structure comprising the inner layer and the outer layer, the cavity capable of containing the heat-insulating material is formed between the inner layer and the outer layer, the heat-insulating material is used so that a low-temperature state of the fresh-keeping container is effectively ensured, and breeding and growing of bacteria can be effectively restrained, and therefore a cooling function and a fresh-keeping function are achieved.

The invention discloses an electric automobile smooth capacitor, comprising a main capacitor set, and two leading-out terminals respectively connected to two poles of the main capacitor set; two Y capacitors which are in parallel connection with the main capacitor set after series connection are arranged between the two leading-out terminals; a neutral point leading-out ground terminal is arranged between the two Y capacitors. The main capacitor set is composed of a plurality of capacitor element in parallel connection. The electric automobile smooth capacitor can restrain common mode interference, and has the characteristics of smaller ESR and ESL, and good weather fastness.

The invention discloses a processing method of honeysuckle flowers. The processing method comprises the following steps: 1, picking honeysuckle flowers, 2, arranging a water removal device, 3, carrying out deoxidation treatment, 4, carrying out water removal treatment, 5, carrying out storage, 6, carrying out fixation, 7, carrying out cooling, 8, carrying out spreading-airing, 9, carrying out drying, and 10, carrying out packaging. With the adoption of the method, the honeysuckle flowers picked in rainy days can be processed, the efficacies of the honeysuckle flowers are guaranteed, and moreover, during processing, the oxidation of honeysuckle flowers can be prevented.

The embodiment of the invention provides gas turbine equipment allowing shaft sealing through a gas turbine cylinder and an application method, belongs to special gas turbine equipment and provides ashaft sealing technology for shaft-end sealing through a highly-airtight structure of the gas turbine equipment cylinder. The gas turbine equipment is used for solving the problem of leakage at the two ends of a rotary shaft of a rotating machine such as a gas turbine and an expansion machine, and particularly for a low-temperature medium with high cost. According to the gas turbine, the temperature of gas input into a main steam pipeline of the gas turbine must be obviously higher than the critical temperature of a low-temperature power generation working medium; and the temperature of wastesteam output from an exhaust pipeline of the gas turbine reaches or approaches the critical temperature of the low-temperature working medium. The gas turbine has the advantages of being low in working medium temperature, compact in structure, small in size, high in efficiency, low in cost, large in torque force and the like.

The present invention discloses a soybean milk heating bed. The soybean milk heating bed comprises a bracket and a heating pot and a fan arranged on the bracket. A wind duct is arranged at one end of the heating pot and an exhaust fan is arranged at the other end of the heating pot directly facing the wind duct. The fan is arranged under the heating pot and sends wind to the wind duct. The soybean milk heating bed can improve the speed of producing bean curd skin by soybean milk and reduce the wrinkling of the bean curd skin.

The invention discloses an intelligent transportation environment supervising and managing device, system and method for cold chain logistics and belongs to the technical field of environment supervising and managing. The intelligent transportation environment supervising and managing device for cold chain logistics comprises a vehicle-mounted type refrigerated container and a refrigeration mechanism installed on one side of the refrigerated container. A power source comprises an installation frame, a plurality of stand columns fixedly connected to one side of the installation frame, a plurality of jacking air cylinders vertically placed in the installation frame and located on the opposite side of the stand columns, hinged assemblies installed on the tops of piston rods of the jacking aircylinders, reversing assemblies arranged on the installation frame and located on the same side with the stand columns, installation racks and solar panels fixed to the upper surfaces of the installation racks, wherein one end of each installation rack is in transmission connection to the corresponding reversing assembly, and the other end of each installation rack is in transmission connection to the corresponding hinged assembly. According to the intelligent transportation environment supervising and managing device, system and method for cold chain logistics, a transportation device is provided with the power source and a cooling source, the power source adopts solar energy as electric energy to provide power for the cooling source, and the technical problem that energy is in shortagein the transportation process is solved.

The invention relates to the technical field of preparation of solar battery cells and in particular relates to a cleaning and cooling device for a silicon wafer before printing in a solar battery cell preparation process. The cleaning and cooling device comprises a first belt conveying device and a second belt conveying device; a bracket is arranged between the first belt conveying device and the second belt conveying device; a platform is arranged at the top of the bracket; the platform is rotatably connected with a rotary table; a motor is fixed on the lower surface of the platform; a first air cylinder and a second air cylinder are symmetrically arranged on the lower surface of the rotary table; rotary air cylinders are fixed at stretching-out ends of the first air cylinder and the second air cylinder; supporting rods are fixed at output ends of the rotary air cylinders; a plurality of suction discs are fixed on lower surfaces of the supporting rods; a fan is fixed at the side of the bracket. According to the cleaning and cooling device provided by the invention, the conveying efficiency of the silicon wafer is not hindered and impurities on the surface of the silicon wafer are completely removed; the probability that a screen printing plate is punctured is reduced and the temperature on the surface of the silicon wafer can be greatly reduced, so that the volatilization speed of organic matters of slurry in the screen printing plate is reduced and a relatively good printing performance can be kept.

The invention discloses a fresh-keeping transport box, and relates to a fresh-keeping food container. The fresh-keeping transport box comprises a shell, a storage chamber and ice block chambers, the shell is made of thermal insulation material and comprises an upper cover and side walls, and the upper cover covers the side walls; the bottom of the shell is hollowed, a grid is arranged at the bottom of the shell, baffles are arranged in the shell and are perpendicular to the horizontal direction, and the upper ends of the baffles are flush with the side walls; the baffles divide the interior of the shell into the storage chamber and the ice block chambers, the ice block chambers are arranged on one sides, close to the side walls, of the shell , and the storage chamber is arranged on the other side of the shell; and pistons are arranged at the upper ends of the ice block chambers, water sprinklers are further arranged on the baffles, the water sprinklers comprise water pipes and spray heads, one ends of the water pipes are connected with the bottoms of the baffles, the other ends of the water pipes are connected with the spray heads, and the positions of the spray heads are close tothe upper cover. According to the technical scheme, the problems that an existing fresh-keeping box is small in utilization space and poor in preservation effect can be solved, and the fresh-keepingtransport box is mainly used for fresh keeping of fruits and vegetables in the transportation process.

The invention discloses a method for prolonging the storage period of egg masses of noctuid black egg bees, which comprises materials and a reaction device, and the materials comprise the following components in parts by weight: 5-10 parts of a thickening agent, 1-3 parts of inorganic salt, 30-40 parts of sodium alginate, 20-30 parts of carrageenan, 5-10 parts of an inorganic antibacterial agent, 40-50 parts of egg white, 3-6 parts of quick lime, 2-4 parts of a preservative and 1-3 parts of cellulase. 30-40 parts of sodium alginate, 20-30 parts of carrageenan and 40-50 parts of egg white are contained in the reaction device, and the reaction device is a main outer frame mounting structure of the equipment. According to the method for prolonging the storage period of the egg masses of the noctuid black egg bees, the formed raw materials are semi-solid materials, the egg masses are placed in the semi-solid materials, the semi-solid materials have good cold absorption performance and can keep the internal low-temperature state in a matched mode, the incubation time of the egg masses is prolonged, the raw materials contain operating substances, and the success rate of eclosion of the egg masses is increased.

The invention discloses a cutter temperature detecting and cooling device of an automatic machine tool, and relates to the technical field of machine tool cooling devices. The cutter temperature detecting and cooling device comprises a fixing piece; the fixing piece comprises a connecting part and an installing part; a protrusion is arranged on the outer side of the connecting position of the connecting part and the installing part; a flow guide groove distributed in the axial direction is formed in the connecting part; a deep hole communicating with the flow guide groove is formed in the endof the connecting part; a rectangular groove distributed in the axial direction is formed in the mounting part; an ejector rod is installed in the deep hole; a temperature sensor is fixed to the end of the ejector rod; a fixing sleeve sleeves the outer side of the mounting part; a limiting piece is cooperatively installed in a gap between the upper end opening of the fixing sleeve and the outer side surface of the mounting part; and the lower end opening of the inner side surface of the fixing sleeve is an inclined surface. The fixing part is composed of the connecting part and the mounting part, a cavity is formed in the formed fixing part, and a connecting pipe communicating with the cavity is installed on the peripheral side surface of the fixing part, so that a cooling liquid conveniently flows to the outer surface of a cutter through the cavity, and heat dissipation of the cutter is conveniently completed.