66results about How to "Avoid heat conduction" patented technology

In order to solve the problem that an existing thermal barrier coating is insufficient in thermal shock resistance and sintering resistance, the thermal barrier coating comprises a thermal insulation bottom layer and a high strain tolerance layer, the thermal insulation bottom layer is located on the lower layer of the high strain tolerance layer, the thermal insulation bottom layer comprises lamellar yttrium-stabilized zirconium oxide with lamellar units stacked, and the lamellar yttrium-stabilized zirconium oxide is located on the lower layer of the high strain tolerance layer. The high strain tolerance layer comprises high strain tolerance yttrium-stabilized zirconium oxide, and the high strain tolerance yttrium-stabilized zirconium oxide has one or more of a vertical crack structure, a columnar structure and a porous structure. Meanwhile, the invention further discloses a preparation method of the thermal barrier coating and a high-temperature-resistant component. According to the thermal barrier coating provided by the invention, the thermal shock resistance and the sintering resistance of the coating can be remarkably improved while the good thermal insulation performance is maintained.

The present application discloses an integrated wave-absorbing and heat-insulating composite material and a preparation method thereof, and relates to the technical field of wave-absorbing composite materials; the application aims to solve the technical problem that the electromagnetic wave absorption performance and heat-insulating performance of existing composite materials need to be improved; the integrated wave-absorbing and heat-insulating composite material has silicon carbide nanowires as a skeleton, and the surface is modified with nano-magnetic particle materials; wherein the mass ratio of the silicon carbide nanowires to the nano-magnetic particles is 1:0.5-2.

The utility model discloses a high-energy-efficiency electromagnetic heating frying pan and a frying machine, the high-energy-efficiency electromagnetic heating frying pan comprises a round pan inner container used for cooking, a round pan outer cover used for installing the round pan inner container, and a hollow electromagnetic heating plate used for providing heat for the round pan inner container; the round pot inner container is installed in the round pot outer cover, the hollowed-out electromagnetic heating disc is located below the round pot inner container, a heat insulation support is arranged at the bottom of the round pot inner container, one end of the heat insulation support is fixedly connected with the bottom of the round pot inner container, and the other end of the heat insulation support is fixedly connected with the hollowed-out electromagnetic heating disc. The distance between the bottom of the round pot inner container and the hollowed-out electromagnetic heating disc is 8-12 mm. According to the electromagnetic heating frying pan, an electric heating tube heating mode is replaced with an electromagnetic heating mode, the hollow structure of the electromagnetic heating disc is optimized to be designed into the hollow electromagnetic heating disc, the space distance between the bottom of the round pan inner container and the hollow electromagnetic heating disc is designed, the power of the electromagnetic eddy current effect is guaranteed, and effect-gathering heating of the electromagnetic heating frying pan is achieved.

The invention discloses a method for preparing a multi-scale reinforced carbon aerogel composite material by using expandable graphite to assist in reducing carbonization shrinkage rate, which comprises the following steps: by taking phenolic resin as a matrix, blending an expandable graphite reinforcement body to prepare an impregnation liquid, performing vacuum impregnation on PAN-based pre-oxidized fiber felt, curing and drying, and performing high-temperature annealing to prepare the multi-scale reinforced carbon aerogel composite material. Carbon aerogel matrix construction, PAN fiber felt carbonization and in-situ expansion of expandable graphite are realized in one step, so that the heat insulation-bearing integrated carbon aerogel composite material with low shrinkage rate, light weight and high strength is prepared. The technological process is simple and easy to operate, and the obtained composite material has good mechanical strength and high-temperature heat insulation performance and is suitable for large-size preparation and batch production.

The utility model discloses a side air supply cooling tower, which particularly relates to the field of cooling towers and comprises a tower body, a top cover is mounted at the top end of the tower body, an exhaust funnel is arranged on the top cover, an air bellow is mounted on one side of the tower body, an air blower is mounted on the outer side of the air bellow, and sealing plates are symmetrically mounted on two sides of the bottom end of the tower body. An air inlet is formed in the outer side of one sealing plate, a water outlet is formed in the outer side of the other sealing plate, the water outlet is connected with a conveying box, a conveying pipe is connected between the conveying box and the top cover, an air supply mechanism is installed at the bottom end in the tower body, and conveying assemblies are connected to the two sides of the air supply mechanism; the bottom end of the interior of the tower body is of a cylindrical structure, and the two conveying assemblies are arranged at the bottom end of the tower body. The cooling tower has the advantages that the air discharge flow can be increased, so that the cooling effect is improved, hot water in the tower body is quickly discharged, heat conduction between the hot water and the tower body is avoided, and the cooling efficiency is further improved.

The invention discloses an ultra-high molecular weight polyethylene composite diaphragm for a high-performance lithium battery, and relates to the technical field of polyethylene composite diaphragms.The ultra-high molecular weight polyethylene composite diaphragm comprises a polymer diaphragm and first pores, and the polymer diaphragm comprises a coating, an antibacterial layer, a first microporous layer, a second microporous layer, a functional layer, a reinforcing layer and a polyethylene base film. According to the ultra-high molecular weight polyethylene composite diaphragm for the high-performance lithium battery, heat conduction is prevented through the functional layer, a safe buffer area is formed, further diffusion of heat or current is prevented, the reinforcing layer has good strength and toughness, and the polyethylene diaphragm is prevented from being broken when the lithium battery is overcharged or short-circuited; a multi-layer composite structure is formed through the arrangement of the first microporous layer, the second microporous layer, the second pores and the first pores, the distribution and flowing of an electrolyte can be improved, meanwhile, the antibacterial layer can effectively prevent impurities, microorganisms or other corrosive substances in the electrolyte from damaging the polyethylene diaphragm, and the service life of the polyethylene diaphragm is prolonged. And the overall performance of the polyethylene diaphragm for the lithium battery is improved.

A smart window coupled with evaporative cooling and multi-level light regulation and a preparation method thereof, the smart window comprising a double-layer glass with a sealed interlayer space, at least one glass surface of the double-layer glass being coated with a thermochromic gel coating located in the sealed interlayer space, and the thickness of the sealed interlayer space being greater than the thickness of the thermochromic gel coating; the thermochromic gel coating being composed of sodium carboxymethyl cellulose, N Isopropyl acrylamide, a crosslinking agent, a photoinitiator and water are mixed and photo-crosslinked and polymerized at a reaction temperature of 0-10°C and under ultraviolet light irradiation to form. The smart window of the present invention has a closed interlayer space with low thermal conductivity, so that: the heat conduction resistance between the gel and the external environment is enhanced; a space for the evaporation of thermochromic gel water is provided; and a self-circulating system of water evaporation and absorption is established through the integration of the cavity and the gel layer.

This application discloses a heat-insulating and high-temperature resistant PPR composite pipe and its preparation method. The PPR composite pipe includes an inner layer, a middle layer, and an outer layer. The inner layer, by weight, includes the following components: 80-90 parts of PP-RCT, 1-3 parts of boron-nitrogen co-doped graphene aerogel, 0.5-1.5 parts of antioxidant, 3-8 parts of boron nitride, 1-3 parts of polyphthalamide, and 0.5-2 parts of dispersant. The middle layer includes PP-RCT, chopped glass fiber, maleic anhydride-grafted polypropylene, and ethylene-vinyl alcohol copolymer. The outer layer includes PP-RCT and an ultraviolet absorber. This PPR composite pipe has excellent heat insulation and high-temperature resistance properties.

An embodiment of the present invention provides a coke oven door and a coking method, wherein the oven door may include: a oven door body and a oven door lining, wherein the oven door lining is connected to one side of the oven door body close to a carbonization chamber, wherein: the oven door lining has a cooling medium space for accommodating a cooling medium inside, and is used to accommodate the injected cooling medium during the coking process; by adopting the technical solution provided by the embodiment of the present invention, the dissipated heat will pass through the cooling medium space of the oven door lining and enter the outside of the carbonization chamber, and since the thermal conductivity of the cooling medium is very low, it is beneficial to suppress heat conduction during the coking process, thereby reducing the heat loss during the coking process.

The utility model provides a kind of aerogel infusion glass fibre thermal insulation decorative board assembly, it includes infusion thermal insulation core layer, inner side support plate layer, outer side support plate layer, cover decorative surface shell layer and plug-in positioning end, and the infusion thermal insulation core layer of the thermal insulation decorative board assembly is formed by infusion of aerogel in glass fibre felt body, aerogel has very low thermal conductivity, and microstructure is composed of nanometer scale pore, can effectively prevent heat conduction, realize good heat insulation effect, provide efficient thermal insulation performance for building, by setting inner side support plate layer and outer side support plate layer, the inner and outer sides of infusion thermal insulation core layer are supported and strengthened respectively, the structural stability of the whole thermal insulation decorative board assembly is enhanced, the setting of plug-in positioning end makes that thermal insulation decorative board assembly can accurate positioning, and with wall body joint, adjacent thermal insulation decorative board assembly can also be sequentially spliced, improve construction efficiency and installation quality.

The invention discloses a waterproof heat-insulation aerosol type coating and a preparation method and application thereof, and the coating comprises the following components in parts by weight: 20-30 parts of polydimethylsiloxane, 5-15 parts of polyvinylidene fluoride, 5-10 parts of dimethyl 3, 3 '-dithiodipropionate, 1-5 parts of a transesterification inhibitor, 10-15 parts of a propellant, 5-10 parts of a dispersant, 20-40 parts of a solvent and 1-15 parts of a pigment. After the coating is sprayed, a film can be quickly formed, a layer of compact waterproof barrier is constructed on the surface of a base material, moisture permeation is avoided, the waterproof performance of the coating is remarkably improved, temperature transfer can be remarkably reduced under the high-temperature exposure condition, the temperature difference between the interior and the exterior of the base material is kept, and an effective heat insulation solution is provided for industrial equipment and the surface of an automobile.

This application discloses a combined polyether, a polyurethane composition, a polyurethane foam, and a refrigeration device. The combined polyether comprises a polyether polyol and a filler, wherein the filler comprises an epoxy-based cage-like polysilsesquioxane; wherein at least one organic side chain attached to the silicon atom of the epoxy-based cage-like polysilsesquioxane contains an epoxy group, and at least one epoxy group is located at the end of the organic side chain. The combined polyether provided in this application, by adding an epoxy-based cage-like polysilsesquioxane as a filler, achieves molecular-level dispersion by forming covalent bonds with the hydroxyl groups of the polyether polyol and the -NCO groups of the isocyanate, due to the epoxy active groups contained in this filler. This prevents the thermally conductive filler from agglomerating and migrating. Furthermore, the cage-like structure of the epoxy-based cage-like polysilsesquioxane can effectively capture gas molecules inside the polyurethane foam, inhibiting gas heat conduction and significantly reducing the thermal conductivity of the polyurethane foam at low temperatures.

The present invention relates to the technical field of sheet metal reinforcement structure of fire trucks, and specifically to a sheet metal reinforcement structure for the top of a crew compartment of a fire truck and a preparation method thereof, wherein the sheet metal reinforcement structure comprises a nail-shaped panel arranged at the top and a disc-shaped enclosure arranged at the bottom, wherein the disc-shaped enclosure is connected to both ends of the nail-shaped panel to enclose a box-shaped closed space, wherein the box-shaped closed space is filled with a foam filler, wherein the nail-shaped panel is a metal sheet, wherein a plurality of connecting nails are welded on the inner surface thereof, and connecting nail perforations are provided on the inner surface of the disc-shaped enclosure at positions corresponding to the connecting nails; the disc-shaped enclosure is formed by bending a metal sheet, and both ends of the disc-shaped enclosure have a bending portion bent toward the inside, and the bending angle of the bending portion is 135 to 150 degrees. The sheet metal reinforcement structure is simple, and the purpose of strengthening is achieved in terms of strength and rigidity at the same time, and the production process is greatly simplified, the cost is reduced, and the demand for mass production is met.

The invention discloses an energy-saving thermal-insulation safety type steel structure outer wall which comprises two rows of hollow horizontal control plates which are symmetrically arranged, and hollow vertical control plates are fixed in the hollow horizontal control plates in a penetrating mode. The two rows of hollow vertical control plates are connected through a horizontal supporting mechanism, so that the safety during use is improved; a steel structure body is mounted in the row of hollow horizontal control plates; a rock wool layer is mounted on the outer side of the hollow horizontal control plate, and a splicing connecting piece is mounted on the outer side of the rock wool layer; and the polystyrene board is hermetically spliced on the outer side surface of the rock wool layer through the splicing connecting piece. According to the energy-saving heat-preservation safety type steel structure outer wall, the splicing sealing performance of the polystyrene boards can be improved, heat is prevented from escaping outwards from splicing gaps, and therefore when the whole steel structure outer wall is used in winter, outward dissipation of indoor heat can be reduced, and when the whole steel structure outer wall is used in summer, outdoor heat can be prevented from being transmitted into a room; therefore, the effects of energy conservation, heat preservation and heat insulation are achieved.

The utility model discloses a display module capable of solving the problem of heat generation at the position of a TFT IC chip, which comprises a TFT display screen, a backlight structure and heat insulation graphite foam, the TFT display screen comprises upper glass and lower glass, one side of the lower glass extends to form a binding lug boss, and the IC chip is bound on the binding lug boss; the backlight structure is arranged on the side face, close to the lower glass, of the TFT display screen, the backlight structure comprises a backlight support and an LED lamp strip, a containing cavity is formed in the backlight support, and the LED lamp strip is arranged on the side wall, close to the IC chip, of the containing cavity; the heat insulation graphite foam is arranged on the side face, away from the upper piece of glass, of the lower piece of glass, and the heat insulation graphite foam is located at the binding protruding part. Thus, through the heat insulation graphite foam, heat conduction of the LED light bar can be prevented from being conducted to the position of the IC chip, meanwhile, heat concentrated at the position of the IC chip can be diffused, the problem that heat is generated at the position of the TFT IC chip is solved, and then the problem that a black screen occurs due to the fact that the temperature at the position of the IC chip is too high is avoided.

The present invention provides a flange assembly, a compressor, an air conditioner and a household appliance. The flange assembly includes a flange plate, a cavity is arranged on the annular edge plate portion of the flange plate, and the annular edge plate portion is used to be sleeved on the crankshaft of the compressor, a plurality of damping particles are filled in the cavity, and the plurality of damping particles can move in the cavity, and the flange assembly also includes a muffler cover, a groove is provided on the outer end face of the annular edge plate portion in the axial direction, the muffler cover is arranged on the outer end face of the annular edge plate portion and covers the groove to form a cavity, and a muffler cavity is arranged on the inner end face of the muffler cover adjacent to the annular edge plate portion, and the muffler cavity is connected to the exhaust port on the annular edge plate portion. The flange assembly of the present invention can effectively attenuate the vibration energy and vibration noise generated by the crankshaft of the compressor as a whole, and can effectively prevent heat conduction, thereby improving work energy efficiency and work efficiency, and extending the service life and comfort of the product.

The utility model discloses an outdoor side structure of a fireproof broken bridge heat insulation door and window frame sash sectional material, which comprises an outdoor side sectional material body, a heat insulation film is pasted on the outer surface of the outdoor side sectional material body, the heat insulation film is outwards connected with a heat insulation film cover plate, and obtuse angle hook parts are arranged at two ends of the heat insulation film cover plate in the width direction. The heat insulation film cover plate is compounded with the outdoor side profile body and the heat insulation film in a cold rolling mode through obtuse-angle hook parts at the two ends in the width direction of the heat insulation film cover plate. The utility model can be applied to normal-temperature bridge-cutoff heat-insulating doors and windows and high-temperature bridge-cutoff heat-insulating doors and By the adoption of the structure, the heat insulation film cover plate and the outdoor side section bar body are of a rolling edge locking structure, the heat insulation film cover plate and the outdoor side section bar body are attached in parallel, a structural foundation is provided for mechanical and automatic production, the fit clearance of the edges of the two sides of the section bar is controllable, and the composite precision of the section bar is better guaranteed compared with that of manual operation in the prior art. Door and window finished products can be conveniently processed, manufactured and installed.

The invention relates to a roadbed deformation inhibition method and device for a frozen soil region, and the method comprises the following steps: carrying out the geological exploration of the frozen soil region, and obtaining the exploration data; determining an ice melting scheme according to the survey data; according to the ice melting scheme, water heat transfer between the road area of the frozen soil area and other areas is blocked; heating the ice layer of the road area of the frozen soil area to melt the ice layer; water generated by melting the ice layer is drained through the drainage mechanism; a gravel hardcore is matched with an impact rolling mode in a road area of a frozen soil area, and a compact soil layer roadbed is obtained. Compared with the prior art, the method has the advantages of high stability, high construction quality and the like.

A multilayer mixed compression circuit board with good stability comprises a circuit board main body part, a mounting rack and a heat dissipation device, the circuit board main body part comprises a first circuit board, a second circuit board and a heat dissipation layer arranged between the first circuit board and the second circuit board, and the heat dissipation layer is provided with a plurality of heat conduction holes penetrating up and down. The heat dissipation layer is further provided with a plurality of heat dissipation holes penetrating left and right, and the heat conduction holes are communicated with the heat dissipation holes. The left end and the right end of the heat dissipation layer extend out of the outer sides of the first circuit board and the second circuit board, and positioning holes are formed in the upper side and the lower side of the heat dissipation holes in the two ends of the heat dissipation layer; the mounting frame comprises two side brackets which are oppositely arranged, and the side brackets are respectively arranged on the left side and the right side of the heat dissipation layer; the heat dissipation device comprises a fan assembly and a heat dissipation piece, and the fan assembly and the heat dissipation piece are arranged on the left side and the right side of the heat dissipation layer respectively and correspond to the heat dissipation holes. The circuit board provided by the utility model is good in heat dissipation performance and strong in practicability.

The utility model relates to door lock cylinder technical field especially, it is a kind of door lock cylinder, solve the problem that multiple keys need additional space to store in prior art, need to replace lock to prevent stranger to open lock after losing key.A kind of door lock cylinder, including door panel, the surface of door panel is equipped with lock cylinder by mounting mechanism, the surface of lock cylinder is equipped with accommodating groove, the inside of accommodating groove is slidably connected with several separate rings, the inside of separate ring is equipped with locking mechanism, the top of lock cylinder is fixedly connected with two sliding blocks, one end of lock cylinder is rotatably connected with ring, the other end of lock cylinder is rotatably connected with bottom ring, the surface of ring is equipped with key.The utility model can open multiple door locks using a key, save the space where key is placed, and when key is lost, the position of separate ring in lock cylinder can be changed to make previous key unable to open new door, additional door lock is not needed, prevent lock cylinder internal high temperature deformation to cause door unable to open.

The application discloses a heat dissipation structure and an oxygen production equipment. The heat dissipation structure comprises a shell and an air inlet assembly. The shell is internally provided with a first accommodating space and a second accommodating space which are connected in communication. The shell is provided with an air inlet and a first air outlet. The air inlet is in communication with the first accommodating space, and the first air outlet is in communication with the second accommodating space. The air inlet assembly is arranged on the shell and is in communication with the air inlet. The first accommodating space is used for mounting a first heating device, and the second accommodating space is used for mounting a second heating device. The heat conduction between the first heating device and the second heating device can be avoided, and the heat accumulation can be reduced. The first heating device and the second heating device can be simultaneously cooled, multiple heat dissipation structures do not need to be arranged, the volume of the whole machine is reduced, the gas flow path is prolonged, the heat dissipation effect is improved, and the noise can be reduced.

The utility model relates to medical detection device technical field especially for a kind of trace PCR reaction auxiliary device, including tapered tube core, baffle, connecting rod, ring stand, threaded connection seat, screw rod structure, lower pressing part, fixed plate, resistance pole and PCR reaction tube;The utility model is used in cooperation with PCR reaction tube, distribute liquid in PCR reaction system in the vicinity of pipe wall, increase the conduction efficiency with PCR instrument heat module, promote reaction speed, avoid the process of liquid internal heat conduction simultaneously, improve the uniformity of reaction system, improve PCR reaction efficiency, and the volume of overall reaction system can be reduced to 1-5 microliters from 20-50 microliters, greatly save the dosage of reaction reagent and the requirement to sample amount, and the device can be adapted to the general ordinary PCR reaction tube in market, need not add new instrument and consumables when using the device, and additional cost will not be increased.

The invention discloses a measuring device and method for regulating and controlling the growth direction of metal molten drops under an inclined surface. The measuring device comprises a molten drop generating device, a substrate temperature regulating and controlling device, a substrate inclination adjusting device, a high-speed camera, a three-dimensional motion platform, a high-speed camera, an infrared point temperature instrument, a thermocouple temperature measuring instrument, an information acquisition system and the like. An inclined substrate platform with a variable temperature field is made through a substrate inclination adjusting device and a substrate temperature regulating and controlling device, molten metal drops are dropped on the inclined substrate platform with the variable temperature field, and monitoring systems such as a high-speed camera and a temperature measuring device are adopted. According to the method, the forming and temperature detection and feedback of the metal molten drop solidification process are realized, the change of the molten drop solidification effect under different parameters is obtained according to an information acquisition system, the morphology change of the molten drop under different temperature fields and different gradients is analyzed, and a measurement method for regulating and controlling the growth direction of the metal molten drop under the inclined surface is established. Therefore, the growth direction of the metal molten drops on the inclined surface can be accurately regulated and controlled.

The present application relates to a kind of wide temperature range temperature parameter black box tester, belong to industrial measurement and control technical field.The multistage temperature tester protection structure is used, from outside to inside in turn includes fiber heat insulation layer, nano micropore heat insulation layer, phase change heat insulation layer, inner layer high reflection heat insulation layer and vacuum heat insulation layer;Vacuum heat insulation layer is vacuum cavity, and the outer side wall surface of which is equipped with heating sheet array and closed loop feedback control system, for active heat compensation under low temperature environment;Data instant transmission system uses high-temperature-resistant antenna to realize wireless data transmission and time synchronization;Damping and sealing integrated system includes hierarchical damping damping structure and sealing gasket structure.The present application realizes stable, accurate temperature measurement in-190 ℃ to 1300 ℃ wide temperature range, has real-time data transmission, anti-vibration and sealing protection ability, significantly improves the reliability and measurement accuracy of equipment in harsh environment.

The utility model relates to a box body heat insulation structure of a heat preservation box, which comprises a shell, an inner container, a polyurethane foaming layer positioned between the shell and the inner container, and two layers of vacuum heat insulation plates arranged between the inner container and the polyurethane foaming layer from inside to outside, each layer of vacuum insulated panels comprises vacuum insulated panels located on the left side and the right side and vacuum insulated panels located on the upper side and the lower side, in each layer of vacuum insulated panels, the vacuum insulated panels on the left side and the right side are longitudinally arranged in a staggered mode, and the vacuum insulated panels on the upper side and the lower side are transversely arranged in a staggered mode; the upper surface of the upper vacuum heat insulation plate in the upper and lower vacuum heat insulation plates is flush with the upper end surface of one of the left and right vacuum heat insulation plates, and the lower surface of the lower vacuum heat insulation plate in the upper and lower vacuum heat insulation plates is flush with the lower end surface of the other of the left and right vacuum heat insulation plates. According to the utility model, the heat preservation and insulation performance is improved, and the heat conduction is reduced by prolonging the path of the splicing gap between the vacuum insulation plates.

The utility model relates to an automobile fuel tank heat insulation component and an automobile, the automobile fuel tank heat insulation component comprises a heat insulation plate of a semi-surrounding structure, the heat insulation plate covers the side of a fuel tank in a buckled mode, and the fuel tank is in clearance fit with the heat insulation plate; reinforcing ribs are arranged on the heat insulation plate, and the outline of the reinforcing ribs is matched with the outline shape of stiffening ribs on the oil tank. Through the arrangement of the heat insulation plate of the semi-surrounding structure, the heat insulation plate covers the side of the oil tank in a buckled mode, the good heat insulation effect can be achieved, and a channel for radiating heat of the exhaust pipe to dissipate towards the side of the oil tank is blocked. The oil tank is in clearance fit with the heat insulation plate, so that the heat dissipation effect of the heat insulation plate is improved, and the requirement for heat insulation protection of the oil tank can be met. The structural strength of the heat insulation plate is enhanced, meanwhile, the combination degree between the heat insulation plate and the oil tank is enhanced, it can be ensured that the heat insulation plate conducts effective heat insulation protection on the oil tank, and the good heat insulation effect is achieved.

The traditional Chinese medicine decocting and extracting tank for the formula beverage comprises a tank body, a top cover is movably arranged at an opening of the top face of the tank body, and the center of the top cover is connected with a stirring shaft through a sealing bearing; according to the Chinese herbal medicine extraction device, the storage barrel loaded with Chinese herbal medicine is hoisted into the tank body, the positioning column at the bottom of the storage barrel is promoted to be connected with the fixing base arranged on the inner wall of the tank body in an inserted mode, the storage barrel loaded with the Chinese herbal medicine is immersed in an extraction solution in the tank body, and the solution in the tank body is heated along with the annular heating piece; a motor is started to drive a first bevel gear on a transmission rod to rotate, a second bevel gear on the top of a stirring shaft is in meshed connection with the first bevel gear, and the stirring shaft is connected with a stirring rod with a plurality of V-shaped extension parts through a transverse plate, so that the stirring rod in a rotating state accelerates flowing of an extraction solution; the effective components of the Chinese herbal medicines are quickly dissolved in the extraction solution.

The utility model relates to the technical field of composite films, in particular to a micro-foaming flexible package composite film which comprises an outer layer film which is arranged on the outer surface, is in contact with the external environment and is resistant to abrasion, a middle layer film which is fixed on the outer layer film and is used for isolating gas, moisture and light, and an inner layer film which is in contact with package contents, adsorbs gas through a porous structure and insulates heat. The porous structure comprises an open pore structure for adsorbing gas and a closed pore structure for heat insulation and heat preservation, and the open pore structure and the closed pore structure are in gradient change; the utility model has the beneficial effects that: at the opening part of the foaming PE, foam holes are communicated with one another, and gas can be diffused through channels between hole walls, so that the internal air pressure of the package is adjusted, and the risk of bag expansion is reduced; the foam holes in the closed hole structure are mutually closed, heat conduction can be effectively blocked, heat insulation and heat preservation effects are provided, meanwhile, the impact strength of the material can be improved through the foam hole structure, and the material has the buffering performance in the transportation process.

The invention discloses a basalt reinforced halogen-free flame retardant PA66MXD6 composite material and a preparation method thereof, the composite material comprises the following components by weight: 25%-50% of PA66 resin, 20%-40% of MXD6 resin, 25%-40% of modified basalt fiber, 15%-20% of a compound flame retardant, 0.5%-5% of a flexibilizer, and 0.5%-2% of a lubricant. The composite material disclosed by the invention has the advantages of good mechanical property, good flame retardant property and balanced mechanical property and flame retardant property, and can be used in automobile electronic and electrical products with high-strength, halogen-free and flame-retardant requirements.

The main object of the present disclosure is to provide a battery module capable of inhibiting heat conduction between battery cells at the time of heat generation. In the present disclosure, the above object is achieved by providing a battery module having a plurality of battery cells arranged in a thickness direction, the battery module having an elastic member between adjacent battery cells, the elastic member being provided with a resin aggregate having thermal expansibility, the resin aggregate being arranged so as to include the center of the battery cell when viewed in the thickness direction, the resin aggregate having an expansion start temperature of 80°C or higher, and the resin aggregate having a thermal conductivity of 0.5 W / m·K or lower after expansion.