86results about How to "Uniform heat conduction" patented technology

The invention belongs to the technical field of insulating flame-retardant adhesive tapes, and particularly relates to an insulating flame-retardant adhesive tape and a preparation method thereof. According to the invention, phytic acid reacts with 3-amino-5-methylpyrazole, triaminopyrimidine and polyether amine-2000 to prepare a flame-retardant auxiliary agent, and the flame-retardant auxiliary agent is compounded with magnesium hydroxide, zinc borate and melamine to prepare a modified flame retardant which can generate an expansive carbon layer during combustion to block heat and isolate oxygen so as to achieve a flame-retardant effect; an aluminum oxide layer generated on the artificial diamond micro-powder is used as an insulating heat-conducting aid, so that the insulativity, wear resistance and corrosion resistance of the insulating flame-retardant adhesive tape are improved, the adhesive tape can be assisted in uniform heat conduction, and combustion caused by over-high local temperature is prevented; epoxy resin is used for wrapping the uniformly dispersed insulating heat-conducting auxiliary agent, and anisyl and boron nitride ceramic powder are cured to prepare an insulating material, so that the dielectric breakdown performance of the adhesive tape is enhanced. The insulating flame-retardant adhesive tape prepared by the invention is excellent in insulativity and flame retardance and free of halogen flame retardants, and the production process is environment-friendly.

The utility model relates to the technical field of laser crystal cooling, in particular to a heat sink device applied to a crystal in a solid laser, which comprises a heat sink base and a heat sink upper cover which jointly form a transverse through groove, the crystal is inserted in the through groove, and an indium foil layer is covered and adhered on the inner wall of the through groove. The indium foil layer can also be attached to the side wall of the crystal in a surrounding mode, a compression piece is arranged on the heat sink upper cover and compresses the heat sink upper cover downwards, and the compression amount of the compression piece is smaller than the thickness of the indium foil layer. According to the heat sink device applied to the crystal in the solid laser, the contact surface of the crystal and the heat sink is filled with indium without gaps, the side surface of the crystal is uniform in heat conduction, and the crystal is not stressed and does not deform, so that the crystal can bear higher injection power without being damaged; light spot distortion caused by non-uniform temperature distribution and deformation of the clamped crystal in the output laser is avoided, the requirement of the installation process on personnel is not high, and the problem that the crystal is prone to damage in the installation process in the traditional technology is solved.

The invention provides a preparation method of a high-thermal-conductivity silicon carbide particle reinforced aluminum-based composite material. The preparation method comprises the following steps: step 1, shaping silicon carbide particles; step 2, mechanical mixing; step 3, packaging; step 4, carrying out vacuum hot degassing; and fifthly, hot isostatic pressing treatment is conducted, specifically, the ingot blank is put into a hot isostatic pressing machine to be subjected to hot isostatic pressing, then an aluminum sheath of the ingot blank is removed through machining, and the high-thermal-conductivity silicon carbide particle reinforced aluminum-based composite material is obtained. According to the preparation method of the high-thermal-conductivity silicon carbide particle reinforced aluminum-based composite material, the preparation process of the high-thermal-conductivity aluminum-based composite material can be optimized, the specific surface area of particles is reduced, the bonding interface area of the composite material is reduced, and the thermal resistance of the composite material is reduced; the heat-conducting property of the composite material is improved; and the stress around the silicon carbide particles can be more uniform, and the mechanical property is better.

The invention discloses a heating energy-storage snow-melting anti-cracking pavement structure system for a road. The system comprises a heat-conducting anti-cracking modified asphalt concrete surface layer, a temperature-adjusting emulsified asphalt macadam layer, a heating anti-cracking steel wire reinforced net, a heat-conducting anti-cracking asphalt concrete bottom layer, an energy-storage cement stable base layer, a PLC (Programmable Logic Controller), an energy storage battery, a solar panel and a temperature sensor. Through the heating function of the heating device, the whole road surface is heated, the road surface is uniformly heated, snow accumulation and icing on the road surface are prevented, and the ice and snow removing cost is reduced; the copper-plated steel fibers are added to the surface layer and the bottom layer of the asphalt concrete, so that the conductivity of the asphalt concrete is improved, and the heat-conducting capacity of the asphalt concrete is enhanced; graphite powder in the temperature-adjusting emulsified asphalt macadam layer has better uniform heat conduction performance, so that the emulsified asphalt macadam layer can form a uniform ultrathin heat conduction'panel '; a certain proportion of paraffin is added into the cement-stabilized base layer, the paraffin releases heat in a low-temperature state, and cracking caused by icing of water in the cement-stabilized base layer is prevented.

The invention relates to an aluminum nitride ceramic heating plate and a preparation method and application thereof, and the preparation method comprises the following steps: mixing aluminum nitride powder and an auxiliary agent, and sequentially carrying out molding, hot pressed sintering and densification to obtain the aluminum nitride ceramic heating plate. The aluminum nitride powder is used as the raw material, the production steps are reduced, the production cost and the production difficulty are reduced, and the powder is used as the raw material, so that the uniformity of the aluminum nitride ceramic is improved, and the generation of microcracks in the ceramic is reduced. By adding the auxiliary agent, the uniformity and thermal conductivity of the aluminum nitride ceramic heating plate can be effectively regulated and controlled. The powder is used as a raw material, an aluminum nitride rough blank is prepared through hot pressed sintering, and the density of the aluminum nitride ceramic is further improved through densification. The prepared aluminum nitride ceramic heating plate is uniform in microstructure, free of layering, high in density, high in strength, uniform in heat conduction and not prone to cracking in the using process.

The present invention relates to the field of thermal conductive material technology, in particular to the field of IPC C08K3, and more specifically to an ultra-high thermal conductive cubic boron nitride-based thermally conductive gasket and a preparation method thereof. In parts by weight, the raw materials for preparing the gasket include: 35-150 parts of cubic boron nitride powder, 30-105 parts of metal oxide powder, 15-40 parts of metal nitride powder, 0.2-0.6 parts of modifier, 2-8 parts of vinyl silicone oil, 0.1-0.8 parts of cross-linking agent, 0.1-0.9 parts of inhibitor, and 0.2-1 parts of catalyst. The modifier includes octyl trimethoxy silane and hexamethyl disilazane, and the weight ratio of octyl trimethoxy silane and hexamethyl disilazane is 1: (0.2-2), which can improve the dispersion performance between various fillers in the system, while controlling the hardness shore 00 to about 20, and the thermal conductivity reaches 18W (m·K) or more.

The utility model provides a kind of aluminium foil lunch box with inner lining isolation structure, it includes heat-conducting bearing shell, isolation support pad lining and adapter composite core layer, heat-conducting bearing shell is made of aluminium foil, its edge is bent upwards and is enclosed to form bearing space, and heat conduction is directed to bearing space, isolation support pad lining is made of paper, it is attached to bearing shell inner wall, and support pad space is enclosed in isolation support pad lining inside, adapter composite core layer is made of two-component polyurethane adhesive, it is filled between heat-conducting bearing shell inner wall and isolation support pad lining outer wall, isolation support pad lining and heat-conducting bearing shell are fixedly connected by adapter composite core layer, isolation support pad lining is supported and heat-conducted by heat-conducting bearing shell, food is supported by isolation support pad lining, and it is mutually isolated with heat-conducting bearing shell, avoid harmful substance in heat-conducting bearing shell migration to food.

The utility model provides an energy-saving cooling device for a kiln tail pipeline, relates to the technical field of kiln equipment, and aims to solve the problems that heat loss and waste are easily caused when the kiln tail pipeline is singly cooled, the function of the device is single, hot air of the kiln tail pipeline is not easily reutilized, and the production cost is low. The device comprises a kiln tail pipeline, a filter plate for blocking smoke dust is not easy to clean, and the air inlet effect is easily influenced. The top of the kiln tail pipeline is connected with an auxiliary air outlet pipe, a set of mounting plates are slidably mounted at the bottom of the fan body, and cleaning brushes are mounted at the bottoms of the mounting plates. When the fan body rotates, the cleaning brush on the mounting plate is driven to brush away smoke dust on the filter plate, the cooling cavity cylinder is matched with the refrigerator to carry out efficient circulating cooling operation on the kiln tail pipeline, and the rotating cylinder is used for carrying out uniform heat conduction on the drying plate, so that the heating and drying uniformity of the device on the drying plate is improved, and the device is energy-saving and environment-friendly; and the hot air after heat conduction is discharged into the kiln tail pipeline through the air outlet pipe, is secondarily cooled by the cooling cavity cylinder and then is discharged.

This utility model relates to a multifunctional thermally conductive coating. The thermally conductive coating includes, from bottom to top, a base layer for adhesion, a thermally conductive layer forming a thermally conductive network structure, an insulating layer that increases dielectric breakdown voltage, and a heat dissipation layer that accelerates heat dissipation and reduces interfacial thermal resistance. This multifunctional thermally conductive coating, through the adhesion of the base layer, enables effective connection between the coating and thermally conductive pads. Simultaneously, the thermally conductive layer, insulating layer, and heat dissipation layer contribute to high thermal conductivity, thus achieving a balance between thermal conductivity and adhesion, improving the functionality of the thermally conductive coating. Furthermore, the heat dissipation layer can be connected to heat dissipation devices, further enhancing the balance between thermal conductivity and adhesion.

The utility model relates to the field of accessories used by a plate laminating machine, and discloses a silica gel buffer pad of the plate laminating machine, which is characterized in that a buffer pad body consists of a stress diffusion layer, an upper buffer layer, a heat conduction bottom pad, a lower buffer layer and a stainless steel plate base layer, and the upper buffer layer is arranged on the top surface layer of the stainless steel plate base layer; a stress diffusion layer is arranged on the top surface layer of the upper buffer layer, a lower buffer layer is arranged on the bottom surface layer of the stainless steel plate base layer, a heat conduction bottom pad is arranged on the bottom surface layer of the lower buffer layer, and the upper buffer layer and the lower buffer layer are each composed of a silica gel buffer layer A, a silica gel buffer layer B and a reinforcing net layer. A silica gel buffer layer A is arranged on the top surface layer of the silica gel buffer layer B, and a reinforcing net layer is connected between the silica gel buffer layer A and the silica gel buffer layer B in a hot melting manner; the novel silica gel cushion pad of the plate laminating machine is obvious in buffering effect, more uniform in heat conduction, capable of avoiding the warping phenomenon of the plate body and suitable for being widely popularized and used.

The utility model discloses a kind of alginate fertilizer processing constant-temperature reaction equipment, specifically related to fertilizer processing equipment technical field, including base, reaction assembly is arranged on the base, the reaction assembly includes the processing cylinder being arranged at the top of base, the inner chamber bottom of the processing cylinder is provided with electric heating disc, the top of the electric heating disc is provided with heat conduction column, the outside of the heat conduction column is provided with swivel, the top of the swivel is provided with stirring belt, the stirring belt is sleeved on the outside of heat conduction column.The utility model can realize temperature stable control in processing process by electric heating disc, avoid because local overheating leads to polysaccharide in alginate raw material excessive degradation into invalid small molecule, and, the uniform heat conduction of heat conduction column: cooperate electric heating disc and evenly transmit heat to different areas in processing cylinder, avoid temperature difference under traditional heating mode, further reduce raw material quality problem caused by local temperature anomaly.

The utility model relates to food inspection field discloses a kind of distillation devices for food inspection capable of uniform heating, including base, the left side of the base is equipped with controller, the inside of the base is equipped with heating cavity, the inside of the heating cavity is equipped with retort, the inside of the retort is equipped with stirring shaft, the left side of the top of base is equipped with motor support, driving motor is installed on the motor support, the left side of the top of retort is equipped with thermometer.The distillation device for food inspection capable of uniform heating drives stirring blade to the liquid inside retort by driving motor, the efficiency of stirring mixing can be improved when stirring blade is fully opened, so that the liquid inside retort is fully agitated to realize uniform heating, heating layer adopts around type electric heating wire structure, the heat of heating layer is evenly conducted on the surface of retort by heat conduction layer to uniformly heat it, and the problem of uneven heating is solved.

The utility model relates to the technical field of composite material winding dies, in particular to a composite material hemispherical cover body winding die which comprises a core die body, the core die body comprises a thin-shell type plate, a reinforcing rib is fixedly installed in the middle of the thin-shell type plate, and a clamping shaft is fixedly installed at the end of the thin-shell type plate. The hoisting and curing assembly is used for fixedly supporting the core mold main body, and the core mold main body is movably mounted in the middle of the hoisting and curing assembly; the winding auxiliary bracket is arranged at the front end of the hoisting and curing assembly, the clamping shaft penetrates and extends to the outer side of the hoisting and curing assembly, and the clamping shaft is supported through the winding auxiliary bracket; the winding equipment connecting assembly is mounted at the end part of the clamping shaft and is used for clamping and fixing a winding equipment chuck; the semi-spherical cover body winding mold overcomes the key technical difficulties of transportation, hoisting, winding and curing of the semi-spherical cover body winding mold, the winding quality of products is improved, and the manufacturing cycle of single products is shortened.

This application proposes a modified polyimide composite material and its preparation method, belonging to the field of polymer composite material technology, to solve the problems of poor thermal conductivity of existing PI materials, the need for blending with fillers to improve thermal conductivity, and the resulting interfacial compatibility issues and damage to the material's physical properties. The modified polyimide composite material includes a polyimide matrix and a three-dimensional covalently bonded hybrid network dispersed within the polyimide matrix. The surface of the three-dimensional covalently bonded hybrid network is modified with unreacted carboxyl groups and / or amino groups, which can form chemical bonds with the polyimide matrix. The three-dimensional covalently bonded hybrid network is composed of one-dimensional carbon nanotubes and two-dimensional boron nitride nanosheets covalently linked by bifunctional bridging molecules, and the bonding between the bifunctional bridging molecules and the carbon nanotubes and / or boron nitride nanosheets includes dynamic covalent bonds. The carbon nanotubes and / or boron nitride nanosheets are modified with amino groups. This network synergistically improves the mechanical, thermal, and electrical properties of the composite material.

This utility model discloses a TPE hollow wire heating hose, belonging to the technical field of heating hoses. The TPE hollow wire heating hose includes a tube body, with a stainless steel tube fixedly installed on the surface of the tube body. A temperature sensor is detachably installed inside the stainless steel tube. A snap-fit ​​mechanism is fixedly installed inside the stainless steel tube, and a limiting mechanism is fixedly installed on the surface of the stainless steel tube. The main body of the tube is made of Teflon tubing, which has good flexibility and high-temperature resistance, reducing carbonization. The outer layer of the Teflon tubing uses four layers of steel wire braided mesh to ensure the working pressure of the hose. The outer layer of the steel wire braided mesh uses four layers of thermal insulation cotton, which has good insulation and uniform heat conduction. The snap-fit ​​mechanism connects the stainless steel tube and the temperature sensor. During replacement, the snap-fit ​​plate can be removed from the snap-fit ​​groove without affecting the sealing performance. The limiting mechanism limits the snap-fit ​​plate, allowing the temperature sensor to operate for extended periods.

The utility model relates to the technical field of recovery devices, and provides a waste gas waste heat recovery device which comprises a recovery box, a heat exchange pipe, uniform mixing plates, a protection box, a rotating rod, a sealing ball, a cleaning plate, a cleaning strip and a synchronous cleaning assembly, the heat exchange pipe is connected to the recovery box in a penetrating mode, and the uniform mixing plates are obliquely and rotationally installed on one side of the heat exchange pipe; the rotating rod is rotationally connected to the protection box in a penetrating mode, a synchronous rotating seat is arranged between the rotating rod and the multiple uniform mixing plates, the multiple sealing balls are all connected to the heat exchange pipe in a penetrating and sealing mode, and the two cleaning plates are rotationally installed on the lower sides of the sealing balls and used for cleaning impurities on the vertical pipe wall of the heat exchange pipe. The multiple cleaning strips are rotationally connected to one side of each sealing ball and used for cleaning impurities on the transverse pipe wall of the heat exchange pipe. By means of the technical scheme, the problems that in the prior art, the cleaning time of impurities is long, and the waste gas waste heat recovery efficiency is prone to being affected are solved.

The invention relates to the technical field of air conditioners, and discloses a heating device and air conditioning equipment, the heating device comprises a heating assembly and a heat conduction assembly, and the heating assembly is suitable for being connected with an external power source; the heat conduction assembly comprises a mounting plate, the mounting plate is provided with a mounting position used for assembling the heating assembly, and the mounting plate is provided with at least one heat conduction groove communicated with the mounting position. The heating assembly is assembled on the mounting position of the mounting plate, the mounting groove is formed in the mounting plate, and the mounting groove penetrates through the mounting position, so that heat released by the heating assembly can spread to the whole mounting plate through the mounting groove, the heat conduction process is more uniform, the heat conduction efficiency is improved, the energy consumption of the heating device is reduced, and the service life of the heating device is prolonged. The problems that an existing air conditioner defrosting device is low in reliability and poor in economic effect are effectively solved.

The invention relates to the technical field of vapor chamber manufacturing, in particular to a huffing type phase change vapor chamber and a manufacturing process thereof, and the manufacturing process comprises the following steps: printing a graphite pipeline on a rough surface of an alloy plate, oppositely stacking and riveting, and feeding into a heating furnace for heating to form a composite plate; the leveled composite plate is clamped in a mold to be blown up, and a plate shell is obtained; and the plate shell is vacuumized, then a phase-change material is injected into the cavity, and the huffing type phase-change uniform-temperature plate is manufactured through welding and sealing. Sr and B are added into the Al-Ni-Si-Fe alloy for treatment, the alloy structure can be remarkably improved through the synergistic effect of the Sr and the B, nitriding is conducted on the inner face and the outer face of the plate shell alloy in the later period, and finally the heat conductivity, the strength, the hardness and the corrosion resistance of the plate shell alloy are improved.

The utility model discloses a shield tail grease winter protection device, which comprises a grease barrel, a heating belt is wound on the grease barrel, two ends of the heating belt are respectively provided with an inner end head and an outer end head, the inner end head and the outer end head are fixed through a fixing structure, the outer wall of the heating belt is provided with a temperature control knob, and the temperature control knob is connected with an external power supply. According to the shield tail grease pump, the heating wire in the heating belt is electrified to generate heat, heat is transmitted to the grease barrel through the heat conduction layer, grease in the grease barrel is heated and melted, and the problems that the temperature is relatively cold in winter, the temperature of shield tail grease for shield tunneling is lowered, the hardness phase change is high, and a sealing piece and a pump rod of the shield tail grease pump are greatly abraded are avoided; the heat insulation layer reduces heat loss, the heat conduction layer plays a role in uniform heat conduction, the heating belt can be rapidly fixed through the magnetic structure or the hook-and-loop fastener, and the heating belt is suitable for grease barrels with different calibers.

The application discloses rapeseed oil refining equipment and a refining process thereof, and relates to the technical field of extraction and refining, which comprises a refining tank, supporting legs are fixedly connected to the bottom of the refining tank, a base is fixedly connected to the bottom of the supporting legs, a feeding inlet is threadedly connected to the top of the refining tank, a driving device is fixedly connected to the top of the refining tank, a refining stirring mechanism is arranged on the inner wall of the refining tank, the oil material can maintain a suitable temperature environment in the stirring process through the refining stirring mechanism, the precipitation and condensation of phospholipids are accelerated, the influence of low temperature on the condensation effect of phospholipids is prevented, the deterioration of oil caused by high temperature is avoided, the inside of the refining tank is uniformly heated at different positions through synchronous stirring, compared with the uneven heating of a single position of a traditional heating rod, the circulating flow heat conduction liquid is matched with the rotary stirring mode of the driving rod, so that the temperature control of the whole degumming process is more uniform and stable.

The utility model relates to mower blade production equipment, in particular to a mower blade heat treatment basket. The utility model aims to provide the heat treatment basket for the blade of the mower, which has the characteristics of firmness, durability and convenience in use. According to the technical scheme, the mower blade heat treatment basket is characterized by comprising a base and blade baskets stacked on the base layer by layer; the base is of a honeycomb structure; and the base and the cutter baskets as well as the cutter baskets are vertically positioned through butt joint structures.

The invention discloses a biological fermentation tank capable of improving microbial fermentation efficiency, and relates to the technical field of biological fermentation tanks, the biological fermentation tank comprises a tank body assembly, the tank body assembly comprises a fermentation tank main body, and the outer surface of the fermentation tank main body is fixedly connected with a temperature adjusting assembly; according to the biological fermentation tank capable of improving the microbial fermentation efficiency, a rotating ring rotates to drive a heat insulation pipe and a heat preservation pipe to rotate along with the rotating ring, and a temperature sensor monitors the temperature in the fermentation tank main body, so that an output nozzle moves to a corresponding mounting hole, and a corresponding heat insulation pad is jacked open, so that the advantage of conveying temperature is achieved; the output nozzle slides on the inclined face of the inclined sliding groove, the length of the limiting telescopic pipe can be flexibly adjusted under elastic connection of the fixed spring, in addition, the multiple temperature transfer blocks make contact with the outer surface of the fermentation tank body at the same time, the beneficial effects of being fast in temperature transfer and uniform in heat conduction are achieved, and the fermentation efficiency of microorganisms in the fermentation tank body is improved.

The invention belongs to the technical field of magnesium alloy processing, and particularly relates to a preparation method of a two-stage precipitation reinforced Mg-Zn-Cu high-thermal-conductivity wrought magnesium alloy. In the Mg-Zn-Cu alloy, the mass fraction of Zn and Cu is smaller than or equal to 4%, and the balance is Mg; the contents of Zn and Cu are equal; the preparation method comprises the following steps: smelting an alloy to obtain as-cast Mg-Zn-Cu; then, the as-cast Mg-Zn-Cu is subjected to repeated homogenization treatment for a plurality of times; the Mg-Zn-Cu subjected to homogenization treatment is subjected to hot extrusion deformation treatment, the extrusion angle is 90 degrees, the extrusion speed is 0.4 mm / s, the extrusion ratio is 25: 1, and the extrusion temperature is 220-240 DEG C; by setting the Zn / Cu ratio, low alloying, the extrusion temperature and the 90-degree extrusion angle, micron-scale and nano-scale precipitation strengthening is realized, and the thermal conductivity is balanced while the mechanical property is enhanced.

The present application belongs to the technical field of biomass heat-conducting film material preparation, and particularly relates to an ultrathin light and soft biomass heat-conducting film material and a preparation method thereof. First, a spinning solution is prepared from biomass raw materials and graphene oxide, the biomass raw materials including lignin cellulose, chitin, sodium alginate, regenerated plant protein and the like, and then an ultrathin light and soft biomass heat-conducting film material is finally prepared through electrostatic spinning technology and gradient calcination treatment. The present application uses biomass as raw material, is widely sourced, is environmentally friendly, and can heat-reduce graphene oxide to graphene while carbonizing the biomass material through gradient calcination. The heat-conducting film material prepared in this way has the advantages of ultrathin lightness, high heat conduction efficiency, low cost, easy preparation and the like.

The invention provides a high-adhesion heat-conducting polyimide film and a preparation method thereof. The polyimide film is prepared by adding a special fluorine-containing anilino phosphonic acid derivative, a certain proportion of spherical silicon oxide, boron nitride and diatom ooze as inorganic modifiers in the polyimide preparation process. By utilizing a pi-pi conjugated structure and an amide group in the fluorine-containing anilino phosphonic acid derivative, the polyimide film has excellent deformation resistance; in addition, by adding the fluorine-containing anilino phosphonic acid derivative, not only can the water absorption of the polyimide film be reduced, but also the adhesive force of the film on the surface of a copper foil can be improved. In addition, due to a layered breathable structure of the nano-scale silicon oxide particles, the micron-scale flaky boron nitride and the diatom ooze, the defect that the heat conductivity is reduced due to the existence of the fluorine-containing anilino phosphonic acid derivative is overcome, and the heat conductivity coefficient of the obtained polyimide film is not lower than 1.0 W / (mk).

The utility model relates to the technical field of film evaporation dehydration, and discloses waterborne polyurethane continuous film evaporation dehydration equipment which comprises a heat preservation mechanism, the heat preservation mechanism is arranged in an evaporation tank, the heat preservation mechanism comprises a collection box arranged below the evaporation tank, and the heat preservation mechanism is used for preserving heat when evaporation is needed. The heat absorbed by the evaporation tank is uniform, and the evaporation quality is improved; and the scraping mechanism is arranged in the evaporation tank. As steam entering the evaporation box is more and more, the air pressure in the evaporation box is continuously increased, the T-shaped mounting block is pushed by the air to rise, at the moment, the limiting spring is stretched, and after the rectangular groove in the T-shaped mounting block leaves the evaporation box, the steam in the evaporation box is discharged, so that not only can the pressure be released, but also the air pressure in the evaporation box is reduced. The stable air pressure in the evaporation tank can be ensured, so that the steam can uniformly conduct heat on the inner wall of the evaporation tank, and the waterborne polyurethane can be uniformly heated and evaporated.

The utility model discloses an oat milk yoghourt fermentation device which comprises a fermentation tank assembly, a regulation and control assembly is arranged at the top of the fermentation tank assembly, and a waste water recovery assembly is embedded in the inner wall of the fermentation tank assembly; the wastewater recycling assembly comprises a metal water pipe, water pipe connectors are fixedly connected to the two ends of the metal water pipe respectively, control valves are fixedly connected to the two ends of the metal water pipe respectively, and industrial cooling wastewater is discharged into the metal water pipe through the water pipe connectors; the regulation and control assembly comprises a regulation and control mechanism fixedly arranged on the fermentation tank assembly, the output end of the regulation and control mechanism is connected with a hanging bracket, and the bottom of the hanging bracket is fixedly connected with an insertion rod mechanism; according to the oat milk yoghourt fermentation device, through the arrangement of the wastewater recycling assembly, industrial cooling wastewater is discharged into the metal water pipe through the water pipe connector, heat is conducted into the water bath through the fermentation tank body, clean water in the water bath is heated, and then the fermentation vessel is subjected to temperature raising fermentation through clean warm water.

This application relates to the field of crystal growth technology and discloses an integrated seed wafer assembly and its fabrication method. The fabrication method of the integrated seed wafer assembly includes: forming a carbon film on the silicon surface of a seed wafer to obtain a seed wafer containing the carbon film; forming a first adhesive layer on the surface of the carbon film away from the seed wafer; forming a second adhesive layer on any surface of a graphite plate; and bonding graphite paper between the first adhesive layer and the second adhesive layer to obtain an integrated seed wafer intermediate; subjecting the integrated seed wafer intermediate to gradient hot pressing to obtain an integrated seed wafer; wherein the gradient hot pressing includes at least two hot pressing operations with increasing temperature gradients. The integrated seed wafer assembly obtained by this method exhibits high bonding strength between the seed wafer and the graphite component. Furthermore, using this integrated seed wafer assembly during crystal growth helps improve the quality of the wafer.

The embodiment of the utility model provides graphite paper, an evaporation source, an evaporation system and a composite metal film. The emissivity of the graphite paper is larger than or equal to 0.3 and smaller than 1. Or the roughness of the graphite paper ranges from 0.58 mu m to 100 mu m. An evaporation source includes: an evaporation container; the graphite paper is arranged on the periphery of the outer side of the evaporation container, and the emissivity of the graphite paper is larger than or equal to 0.3 and smaller than 1; and the heating container is used for accommodating the evaporation container provided with the graphite paper. The graphite paper is good in heat conduction effect and more uniform in heat conduction, so that the heat conduction uniformity of an evaporation source is improved. According to the evaporation source disclosed by the embodiment, the graphite paper with the emissivity is used, so that heat conduction and heat transfer can be better performed on the evaporation container.

The utility model relates to the technical field of boilers, in particular to a fully premixed combustion boiler discharge system which comprises a boiler body, an upper boiler barrel is installed on the upper portion in the boiler body, a lower boiler barrel is installed on the lower portion in the boiler body, one side of the upper boiler barrel is connected with an upper collecting box, and one side of the lower boiler barrel is connected with a lower collecting box. A plurality of convection banks are connected between the upper boiler barrel and the lower boiler barrel, a burner is mounted at one end of the boiler body, a connecting flue is mounted at the other end of the boiler body, an energy saver is connected to the outer end of the connecting flue, and a condenser is connected to the outer end of the energy saver. In the discharge system of the fully premixed combustion boiler, by adopting a fully premixed combustion technology, fuel and air are fully mixed before combustion to form a uniform combustible mixture, so that the combustion process is more sufficient and stable, and the combustion efficiency is remarkably improved. The energy saver and the condenser in the system effectively recover heat energy in the flue gas and convert the heat energy into available energy, so that the energy waste is reduced, and the overall energy consumption of the boiler is reduced.