40results about How to "Uniform temperature gradient" patented technology

The invention relates to a piece of growth equipment and a growth method for large-size gallium oxide monocrystalline. The equipment comprises the following components: a zirconia insulating brick (1), a quartz cylinder (2), a water cooling copper electrode (3), an iraurita crucible (4), a heat exchanger (6), and an infrared thermometer (7). The method comprises the following steps: the iraurita crucible (4) is placed in the crystal growth furnace cavity formed by the zirconia insulating brick (1), the outside of the zirconia insulating brick (1) is provided with the quartz cylinder (2) and the water cooling copper electrode (3) in order, the heat exchanger (6) is placed at the bottom of the iraurita crucible (4), the infrared thermometer (7) is connected to the iraurita crucible (4), andthe iraurita crucible (4) contains a gallium oxide solution (8) and seed crystal (5). Compared with the prior art, heat exchange method is used for growing crystal, the efficiency is improved, and production cost is reduced; at the same time, grown crystal has the advantages of excellent quality, little stress, low dislocation density, good crystal perfection and optical homogeneity, improved utilization rate of the gallium oxide material, and simplified processing operation.

A structure for extreme thermal cycling has a support element that supports a vessel primarily by bearing and frictional forces rather than by welds. The support element has a bearing portion that tapers inwardly beneath a knuckle that separates a cylindrical section of the vessel from a sloped lower section. The bearing portion of the support element follows that slope, providing an extended area of contact between the support element and the vessel. An annular section of the support element can be heated and expanded before placing it around the cylindrical section of the vessel to provide pre-stressing. If required, a strap may extend downwardly from the vessel over an upper edge of the support element.

The invention relates to the technical field of tracked trolley bus frog welding, in particular to a welding process of alloy steel and a trough type steel rail. According to the welding process of the alloy steel and the trough type steel rail, the alloy steel and the trough type steel rail are welded together through a flash welding method; the welding process comprises a flash levelling stage,a preheating stage, a burning stage, an upset forging stage and a postheating stage; the total duration time of the welding process is 114s to 115s; the upset forging amount of the welding process is12mm to 12.8mm; and the total consumption amount of the steel rail of the welding process is 30 to 31.8mm. According to the welding process of the alloy steel and the trough type steel rail provided by the invention, the flash welding of the alloy steel and the trough type steel rail is realized successfully, the mechanical property of a formed welding joint is good, and the welding quality is stable.

The invention discloses an air-cooled refrigeration system and a semiconductor refrigerator, and relates to the technical field of refrigerators. The air-cooled refrigeration system comprises a heat exchange system, an air duct system and a box outer barrel; the box outer barrel comprises a box outer barrel back; the heat exchange system comprises a refrigeration module and a heat dissipation module; a semiconductor module is arranged between the refrigeration module and the heat dissipation module; the air duct system comprises a box inner barrel and a box middle frame; the box outer barrel and the box inner barrel are connected by the box middle frame; thermal insulation materials are filled in the box middle frame; the refrigeration module and the semiconductor module are arranged inside the box middle frame; the heat dissipation module is arranged at the outer side of the box outer barrel back; the refrigeration module comprises a refrigeration block and a refrigeration fan; and the refrigeration module is arranged in the box middle frame. According to the air-cooled refrigeration system provided by the invention, an air return channel structure is added in the refrigerator, forced convection is achieved through the air duct system in the box, and the problem that an existing semiconductor refrigerator is not ideal in refrigeration effect, low in overall efficiency, especially slow in refrigeration speed is solved.

The invention provides a recovery process for purifying sulfur with coal-to-methanol synthesis gas. The process comprises the following steps: performing replacement on a reactor and a system nitrogentemperature rise system, and heating a sulfur recovery catalyst bed by adopting nitrogen; clearing sulfur after stopping sulfur recovery, controlling the temperature of a heater at the inlet of the reactor, heating by medium pressure steam, ensuring the temperature of the inlet of the bed to be 120-260 DEG C, and clearing sulfur while controlling the bed temperature to 120-260 DEG C. The volume content of H2S and S at the outlet of the bed is less than 0.01%, and when no liquid sulfur is discharged during drain recovery of a system condenser, the operation of clearing sulfur with nitrogen isended. According to the process disclosed by the invention, catalyst starting can be completed, the activity temperature is met, and in the processes of raising the temperature of the sulfur recoverycatalyst and stopping sulfur clearing, incineration side-reactions are fundamentally avoided, so that the influences of carbon deposit and water vapor on the catalyst activity can be eliminated. In addition, the inert gas nitrogen is taken as the sulfur-clearing carrier, so that unsafe factors brought by leakage are fundamentally eliminated, and intrinsic safety is realized.

The invention discloses a high-efficiency flat wire generator rectifier structure, which comprises a conductive negative plate, an intermediate support insulating support, a conductive positive plate, a bus bridge support, a positive output screw, a rectifier diode, a tubular rivet, a rear fixing cover of a generator, and a generator The rear fixed cover supports the boss and the plastic protective cover. It is characterized in that: the intermediate support insulating bracket replaces the insulating bushing and is installed between the conductive negative plate and the conductive positive plate. The conductive negative plate is installed under the rectifier and fixed with the rear of the generator. The cover support boss is connected and fixed, the lower edge of the plastic protective cover is flush with the upper edge of the conductive negative plate, the bus bridge bracket is installed above the conductive positive plate, and is horizontally connected and fixed with the connecting thread of the generator stator line. Its advantages are: the use of two-way air intake makes the temperature gradient on the plate uniform, ensures the reliability of spot welding, and can meet the requirements of different output directions of customers. It not only improves the generator power and product reliability, but also increases the efficiency of the generator. overall lifespan.

PURPOSE: Provided are a container for a fuel cell which can accommodate an electrolyte member, is compact and strong, and can allow gas to be distributed uniformly and temperature to be gradient uniformly, a fuel cell containing the container for portable electronic device, and an electronic tool containing the fuel cell. CONSTITUTION: The container comprises a base body which comprises a ceramic a concave part accommodating an electrolyte member having first and second electrodes at one and the other main faces, at the one side; a first fluid channel which is formed from the bottom face of the concave part facing the one main face of the electrolyte member to the outer face of the base body; a first wire conductor whose one end is located at the bottom face of the concave part facing the first electrode of the electrolyte member and whose the other end is drawn to the outside of the base body; a cover body which is installed by covering the one side of the environment of the concave part of the base body with the concave part and seals tightly the concave part; a second fluid channel which is formed from the one side of the cover body facing the other main face of the electrolyte member to the outer face of the cover body; a second wire conductor whose one end is located at the one face of the cover body facing the second electrode of the electrolyte member and whose the other end is drawn to the outside of the cover body; and a porous body which is located at the base body or the cover body so as to cover one of the first and second fluid channels where an oxidizing gas is supplied.

The invention relates to a heat exchanger for controlling the temperature of energy storage elements (12) of an energy store (10) and/or of power electronics, for example of battery cells, having a heat exchange surface (16) which is placed on the energy store (10). Essential to the invention is the fact that the heat exchanger surface (16) is partially coated with a layer (29) comprising a heat-conducting material, and that the heat exchange surface (16) has contact regions (30) which are provided with the heat-conducting layer (29), and insulating regions (32) which are not provided with the heat-conducting layer (29). The invention further relates to an energy store and to the production thereof having energy storage elements (12) and at least one such heat exchanger (14), which rests on the energy storage elements (12) in order to control the temperature of the energy storage elements (12). Essential to the invention is the fact that a contact area between the energy storage elements (12) and the heat exchanger (14) is formed by the heat-conducting layer (29) applied to the heat exchanger (14).

The invention discloses an intelligent continuous solidification separator for crude tin purification and a crystallization method. The separator comprises a separator support, a motor, a rotating shaft, a U-shaped crystallization tank, a spiral blade, a modular heating body, a bottom patch type temperature sensor, a shaft sleeve type temperature sensor, a blade patch type temperature sensor, a high-definition infrared temperature sensor, an infrared temperature measurement system support, a speed sensor, a material melting pot, a crystal pot, a melt pot and a 5G wireless transceiver. The temperature of the solidification separator is monitored and controlled in real time through a multi-dimensional temperature measurement system and a modular heating system, the rotating speed of a solidification separator is controlled in real time through an intelligent speed regulation system, meanwhile, the high-temperature-resistant 5G wireless transceiver is adopted for real-time online transmission of data, the data is fed back to a mobile terminal after being processed by the server, and the mobile terminal can also directly regulate and control the separator in real time.

The invention discloses a method for preparing foam glass by utilizing waste glass and porous ceramsite. The method particularly comprises the following steps: preparing a hydrotalcite-like material by taking manganese nitrate, aluminum nitrate and urea as raw materials, and mixing the hydrotalcite-like material and silicon carbide to prepare a foaming agent; preparing porous ceramic by taking plant powder, zeolite powder, polyvinyl alcohol, deionized water, montmorillonite, aluminum nitride fiber and urea as raw materials; and preparing a green body by taking waste glass powder, modified porous ceramsite, a cosolvent, the foaming agent and a foaming accelerant as raw materials through the steps of grinding, mixing and performing compression molding, placing the green body into a muffle furnace and performing sintering treatment to prepare the foam glass. The foam glass prepared with the method has high mechanical property and excellent sound-absorbing and heat-insulating properties.

The invention discloses a centrifugal sintering method for a functionally graded material of a thin-wall pipe fitting. The centrifugal sintering method for the functionally graded material of the thin-wall pipe fitting comprises the following steps of mixing two evenly distributed powder, a solvent and a dispersing agent, stirring in air, and vacuum degassing to form an even slurry; loading the slurry into a pulp spraying machine, then stretching a spraying head into a base plate in a centrifugal machine, and evenly spraying the slurry onto the inner wall of the base plate; changing the relative volume percentage of the two powder, and forming a second layer of composite material layer; repeating the steps, and forming multilayer spraying; stretching a graphite radiation heating element into an inner cavity of the base plate, electrifying, moving up and down, installing a layer of heat insulation layer on the outer wall of the base plate, and electrifying the heat insulation layer; andturning off the centrifugal machine, sintering a green body, taking the green body out from the base plate, and obtaining a hollow pipe fitting. According to the centrifugal sintering method for thefunctionally graded material of the thin-wall pipe fitting provided by the invention, through adding the graphite radiation heating element, and installing the heat insulation layer on the outer layerof the base plate, the even temperature gradient is realized internally, so that an effective guarantee is provided for preparing the uniform and compact thin-wall pipe fitting.

The present invention aims to provide a capacitor pack or battery pack cooling system and a control method thereof. According to the present invention, the temperature gradient between the capacitor packs or the battery packs is effectively balanced through the forward circulation or reverse circulation of cooling water in a forward circulation and reverse circulation switching pipeline, the capacitor packs or the battery packs can be in a temperature balance state, the problem of large monomer temperature difference in the capacitor packs or the battery packs of a series cooling structure is solved, the performance and the service life of a super capacitor can be improved, the monomer circuit temperature is effectively balanced, and higher safety and economical efficiency are achieved.

The invention discloses an injection molding machine electromagnetic induction heating soaking device and relates to the technical field of heating. The injection molding machine electromagnetic induction heating soaking device comprises an electromagnetic heating cylinder and an electromagnetic heating controller. The electromagnetic heating cylinder comprises an inner layer material cylinder, middle layer insulation cotton and an outer layer wound high-temperature wire electromagnetic coil. The surface of the insulation cotton is fixedly wrapped with a high-temperature-resistant cloth. Effective gaps are kept between wound wires of the high-temperature wire electromagnetic coil. The electromagnetic heating controller has matched capacitance inductance and current range. The high-temperature wire electromagnetic coil comprises two or more coil sets. All the coil sets are tightly wound on the insulation cotton and are separated from each another. Every two adjacent coil sets adopt a rewinding mode, namely the high-temperature wire electromagnetic coil is opposite in winding direction, and generated electromagnetism directions are opposite. The injection molding machine electromagnetic induction heating soaking device provided by the invention is even in temperature distribution, stable in product quality, long in device service life and good in energy saving effect.

This fuel cell container is equipped with a substrate 6 having a recessed part to house the electrolyte member 3 having first and second electrodes 4, 5, a first fluid passage 8 formed from the bottom surface of the recessed part on to the external surface of the substrate 6, a first wiring conductor 10 one end of which is disposed on the bottom surface of the recessed part and the other end of which is led out to the external surface of the substrate 6, a lid body 7 attached to the upper surface of the periphery of the recessed part of the substrate 6, a second fluid passage 9 formed from the lower surface of the lid body 7 on to its external surface, and a second wiring conductor 11 one end of which is disposed on the lower surface of the lid part 7 and the other end of which is led out to the external surface of the lid part 7, and a recessed part 12 is formed in either one of the contact part where the first electrode 4 is brought into contact with the substrate 6 or the contact part where the second electrode 5 is brought into contact with the lid part 7.