87results about How to "High heating temperature" patented technology

The invention discloses a fermentation device for traditional Chinese medicine decoction piece production, and belongs to the field of traditional Chinese medicine fermentation. A fermentation device for producing traditional Chinese medicine decoction pieces comprises a fermentation tank and further comprises a controller fixedly arranged at the bottom of the fermentation tank; the sealing cover is in threaded connection with the top of the fermentation tank; the rotating shaft is rotationally arranged on the sealing cover; the motor is fixedly arranged at the top of the fermentation tank, and the output end of the motor is fixedly connected with the rotating shaft; the hemispherical head is fixedly arranged at the bottom of the rotating shaft; the limiting groove is formed in the hemispherical head; the rotating ball is rotationally arranged in the hemispherical head, and a limiting block matched with the limiting groove is fixedly connected to the rotating ball; according to the device, the mutual contact efficiency of raw materials is improved, the situation that the temperature of the raw materials on the inner wall of the fermentation tank is high after long-time heating is effectively prevented, meanwhile, the heating uniformity of the raw materials in the fermentation tank is effectively improved, and then the fermentation efficiency of traditional Chinese medicine is effectively improved.

The invention discloses an underground enhanced heat exchange method for a closed heat removal system, and belongs to the field of geothermal energy development and utilization. A vertical well is drilled according to the depth and thickness of a heat reservoir, a casing pipe is put down and well cementation is carried out, a central heat preservation pipe is arranged in the casing pipe, and an annular space between the casing pipe and the central heat preservation pipe forms a vertical well annulus; casing lateral windowing is carried out on the vertical well section corresponding to the thermal reservoir, a plurality of branch well holes are drilled, or volume fracturing is carried out to form micro cracks; filling a high-thermal-conductivity material in the multilateral well hole / microcrack, transforming the thermal reservoir and supporting the transformed space to form a high-thermal-conductivity area in the thermal reservoir, and plugging the lateral multilateral well hole to complete the transformation of the thermal reservoir; a heat exchange working medium is injected through a high-pressure pump through a vertical well annulus, is pumped out of the central heat preservation pipe after being subjected to closed type sufficient heat exchange with the transformed heat storage layer, and geothermal energy utilization is achieved through the heat exchanger. The defects of a traditional closed heat removal system are remarkably overcome, the heat removal temperature is increased, the heat removal service life is prolonged, and development and utilization of medium-deep geothermal energy are accelerated.

The invention discloses carbon nanoelectrode production equipment, a preparation method and an annealing process, the production equipment comprises a heating cabin, a carbon heater is fixed in the center of a shell of the heating cabin, a protective gas inlet is formed in a back plate of the shell, a water-cooling heat exchanger is arranged on the peripheral side of the shell, and the protective gas inlet is externally connected with a protective gas source and is correspondingly provided with a protective gas valve; the lifting unit comprises a linear sliding table and a connecting rod arranged at the action end of the linear sliding table, the connecting rod is provided with a probe fixing clamp, the probe fixing clamp clamps a probe, the probe moves towards or away from the heating cabin in the length direction of the probe, the shell is provided with an insertion hole corresponding to the probe, and the tail end of the probe is connected with a carbon source or a vacuum pump. A carbon source control valve is arranged on the hose corresponding to the carbon source; and the control unit comprises a control circuit board and a switching power supply for providing electric energy, and controls the action part to act according to preset parameters. The production equipment has the advantages of being high in automation and program control degree, good in reproducibility, high in safety and easy and convenient to operate.

The utility model relates to an evaporative crystallization device, which belongs to the field of evaporative crystallization and comprises a tank body, a heating mechanism is arranged in the tank body, a scraping mechanism is arranged in the tank body, the outer side of the tank body is fixedly communicated with a feeding bin, the bottom end of the tank body is fixedly communicated with two discharging pipes, the inner wall of an inner cavity of the tank body is provided with a cavity, and the inner wall of the inner cavity of the tank body is provided with a baffle. And an electric heating plate is fixed in the cavity. According to the evaporative crystallization device, raw materials in the tank body are heated through an electric heating plate, a motor is started, the materials are mixed and stirred through a plurality of stirring barrels and a plurality of connecting barrels, an air pump is started, water vapor in the tank body is pumped out through an exhaust pipe, and the water vapor is conveyed into a connecting pipe through an exhaust pipe; the rotating cylinder body drives the plurality of connecting cylinders to rotate to convey high-temperature water vapor to the plurality of circulating ports, so that raw materials are rapidly and uniformly heated, the purpose of increasing the heating temperature of the raw materials is achieved, and the problem that the heating speed of the materials is relatively low is solved.

The application discloses a magnesium-based composite material and a preparation method and application thereof. The magnesium-based composite material comprises ferroferric oxide and a magnesium alloy. The magnesium alloy comprises the following components in percentage by weight: 3wt.%-6wt.% of Zn, 0.3wt.%-0.8wt.% of Ca, and the rest of Mg and inevitable impurities. The magnesium-based composite material can effectively solve the problem that micron-sized particles are easy to agglomerate in a metal liquid when the magnesium alloy is modified, and the plasticity of the alloy is reduced and the alloy is not easy to be formed.

The invention discloses a sealed heating type cigarette with a plug, wherein a sealing member (5) is used to seal the end of a tobacco segment (1) of the cigarette, and the sealing member (5) contains a flavoring material. The sealed heating type cigarette with a plug solves the problem that the smoke volume cannot be increased and harmful components cannot be reduced at the same time, and solves the problem that the smoke cannot be flavored.

The utility model discloses a circumferential auxiliary hot air heating smoking set. The circumferential auxiliary hot air heating smoking set comprises an electromagnetic coil assembly and a vacuum thermal insulation heating module. The electromagnetic coil assembly comprises a tower type electromagnetic coil (7) which is gradually thickened from top to bottom, an upper coil mounting plate (3) at the upper part of the electromagnetic coil, and a lower coil mounting plate (4) at the lower part of the electromagnetic coil; the vacuum thermal insulation heating module comprises a smoke cup (10) and a thermal insulation sleeve (8) on the periphery of the smoke cup (10), and a vacuum space is formed between the outer wall of the smoke cup (10) and the inner wall of the thermal insulation sleeve (8). A plurality of arc-shaped grooves (1001) and rectangular grooves (1002) are formed in the inner wall of the cigarette cup (10); an outer heating sheet (1401) is arranged in each arc-shaped groove (1001); an inner heating sheet (1402) is arranged in each rectangular groove (1002); the electromagnetic coil assembly is arranged on the periphery of the vacuum thermal insulation heating module in a sleeving mode.

The invention relates to the field of intelligent operation and maintenance of power equipment, in particular to a transformer maintenance-free respirator control method integrating temperature, humidity and pressure monitoring and electric heating regeneration and a storage medium. The method comprises the following steps: firstly, deploying a sensor in the respirator, collecting humidity and internal temperature and pressure data of a drying agent, and obtaining accurate data after moving average filtering and temperature compensation; and the control module is combined with the data, a humidity threshold value dynamically adjusted along with the load rate of the transformer and a regeneration period to trigger the regeneration system to start. During regeneration, the electric heating piece heats the drying agent, the fan adjusts the rotating speed according to the real-time temperature and humidity to discharge steam, meanwhile, the moisture absorption capacity recovery rate is corrected by combining aging of the drying agent, and starting and stopping or temperature adjusting delay are conducted according to the standard condition. The process data is uploaded to the operation and maintenance cloud platform through the LoRa module encrypted by AES-128, and the platform analyzes the trend through weighted linear regression and gives an alarm; and operation and maintenance personnel optimize parameters according to the parameters and regurgitate a judgment link. Related programs are stored in the storage medium and can be executed by the processor to achieve the method, and support is provided for maintenance-free of the respirator.

This utility model discloses an automatic heating charging station cable, including a cable body and several automatic heating modules. The cable body is provided with a power-conducting conductor and a CAN communication bus. The several automatic heating modules are arranged on the outer surface of the cable body and segmented along the length of the cable body. Each automatic heating module includes a graphene heating film, a first temperature sensor, a curvature sensor, and a sub-control circuit board. The graphene heating film covers the outer surface of the cable body. The graphene heating film, the first temperature sensor, the curvature sensor, and the sub-control circuit board are all electrically connected. Each sub-control circuit board is electrically connected to the power-conducting conductor and is signal-connected to the main controller installed on the charging station via the CAN communication bus. By setting the curvature sensor and the first temperature sensor, the curved section can be automatically heated according to the curvature of the cable to increase the temperature, without having to keep the entire cable at a high temperature, thus solving the problem of high operating costs.

The invention discloses a reinforced closed heat removal method based on an expansion casing, and relates to the technical field of geothermal energy development, and the method comprises the following steps: selecting a target geothermal reservoir, and determining the depth of a heat removal section according to a geothermal gradient; drilling to the upper part of the heat removal section, installing a common sleeve on the upper part of the heat removal section, and injecting slurry for well cementation as a first open section; after well cementation is completed, drilling continues to be conducted to the lower portion of the heat extraction section of the geothermal reservoir, and reaming is conducted on the heat extraction section; after broaching, an expandable sleeve is installed on the heat removal section, and pressurized expansion treatment is conducted on the expandable sleeve; cement is filled between the well wall and the expandable casing for well cementation to serve as a second open section; and a heat exchange working medium is injected from the first open section annulus, exchanges heat with the second open section and then is extracted from the central pipe, so that geothermal energy utilization is realized. According to the system, the defects that a traditional closed heat removal system is low in efficiency and small in heat removal amount are overcome remarkably, the heat removal temperature is increased, the heat removal energy efficiency is optimized, and development and utilization of medium-deep geothermal energy are accelerated.

The invention relates to the technical field of chemical engineering, and discloses an olefin preparation system. In the olefin preparation system, the raw material fluid and the hot carrier fluid are mixed in the cracking device and are subjected to cracking reaction to obtain the cracking fluid to prepare the product olefin, so that the heating rate and the heating temperature of the raw material fluid can be increased, the olefin yield can be increased, and the cracking pressure can be increased; the processing capacity of the equipment is improved and the energy consumption of the system is reduced while the high olefin yield is ensured. The raw material fluid is preheated by the preheating flow path before being mixed with the hot carrier fluid, so that the heating efficiency of the raw material fluid can be improved, heat energy generated by the fractionation device can be fully utilized, and the energy consumption of the system is further reduced. And moreover, the preheated raw material fluid is relatively low in temperature, so that the problem of coking in advance is avoided.

The utility model provides a thermal plastic packaging device which comprises a bearing part and a hot welding part, the bearing part is used for bearing a packaging bag to be sealed, the hot welding part and the bearing part are arranged in a relative movement mode, the hot welding part comprises a welding seat and a heating structure arranged in a containing hole of the welding seat, and the two opposite ends of the welding seat are a driving end and a welding end respectively. The heating structure is close to the welding end relative to the driving end; the welding end is pressed against the opening position of the packaging bag located on the bearing part to achieve sealing. In the scheme, due to the fact that the heating structure is arranged inside the welding base instead of the end portion, the problem that the heating temperature of the welding end is too high is avoided, the packaging bag is not prone to being completely welded, and the sealing quality and the yield are improved. And moreover, the heating structure is closer to the welding end relative to the driving end of the welding seat, so that the heating speed of the welding end is high, and compared with the scheme that the heating structure is arranged at the driving end, the heat transfer distance is short, and the heating waiting time is shortened.

The application relates to the technical field of aerosol generation, in particular to a heating assembly and an aerosol generating device. The heating assembly comprises a first heat conductor, a second heat conductor and a heating body. The heating body is arranged on at least two of the side wall, the bottom wall and the second heat conductor. The heating body is used for generating heat and conducting the heat to the first heat conductor and the second heat conductor. The inner surface of the side wall is provided with a plurality of protruding portions. An air inlet channel is formed between two adjacent protruding portions. The air inlet channel is communicated with the external environment through an opening. Since the heating body is arranged on at least two of the side wall, the bottom wall and the second heat conductor, the heating area can be further increased, which helps to improve the generation speed of the aerosol. The contact between the first heat conductor, the second heat conductor and the aerosol generating article can improve the heat transfer efficiency and the heat utilization rate. The air inlet channel is formed by the protruding portions, so that the heat conduction, heat radiation and hot air flow can synergistically act on the heating body to solve the problem of uneven heating.

The invention discloses a device for heating high-temperature particles through electromagnetic induction. An electromagnetic induction heating coil is wound on the outer wall of a diamagnetic pipe attached with a thermal insulation material. And the induction heated particles are filled in the diamagnetic pipe and are stacked to form a porous flow channel. The electromagnetic induction heating coil is electrified to generate an alternating magnetic field, the induction heated particles are heated by the eddy current effect in the alternating magnetic field, the ceramic particles flow in the porous flow channel under the action of self gravity, and flow and radiation heat exchange are carried out on the ceramic particles and the induction heated particles, so that the purpose of heating the ceramic particles is achieved. The induction heated particles are made of ferromagnetic materials or graphite and are spherical. The lower portion of the diamagnetic pipe is provided with a supporting separation net which is used for supporting and fixing induction heated particles, and meanwhile it is guaranteed that ceramic particles smoothly flow through. The heating device can absorb unstable new energy electric power such as wind power and photovoltaic power, realizes high-temperature heat storage, and is applied to the energy fields of thermal power generation, industrial steam production, heat supply and the like.

The invention relates to the technical field of traditional Chinese medicine extraction, and provides traditional Chinese medicine extraction equipment and technology.The traditional Chinese medicine extraction equipment comprises a heating kettle and a rectifying still, the top of the heating kettle is a feeding end, the bottom of the heating kettle is a discharging end, and the discharging end of the heating kettle is communicated with the rectifying still; the device further comprises a rectification heating assembly, an evaporation and condensation mechanism and a solution adjusting assembly, the rectification heating assembly is arranged in the rectification kettle, a discharging assembly is arranged at the bottom of the rectification kettle, the evaporation and condensation mechanism is arranged at the inner top of the rectification kettle, and the evaporation and condensation mechanism is communicated with the feeding end of the heating kettle. And position adjusting assemblies are arranged between the two sides of the solution adjusting assembly and the rectifying still. By means of the technical scheme, the problem that in the prior art, water and ethyl alcohol are inconvenient to recycle in the heating and concentrating process of a medicament solution through traditional Chinese medicine extraction equipment is solved.

The utility model relates to the technical field of bus processing, in particular to a blasting bus processing wire drawing device which comprises a bus processing table, a first shaft seat fixedly mounted on the left side of the bus processing table, a finished wire cylinder rotatably mounted on the inner side of the first shaft seat, a mounting block arranged on the side edge of the finished wire cylinder, and a heating cylinder fixedly mounted on the mounting block. An infrared thermometer is installed on the side edge of the heating cylinder, a screw joint table is arranged on the side edge of the heating cylinder, and a wire drawing machining head is installed on the screw joint table in a screw joint mode. According to the utility model, the infrared thermometer is arranged, so that finished copper wires heated from the side edge of the heating cylinder can be monitored in real time, the power of the electric heating wire in the heating cylinder can be regulated and controlled in real time through temperature monitoring, the heating temperature of the finished copper wires is ensured to be proper, and the production quality of subsequent buses is ensured; and the buses processed by the wire drawing processing head are uniformly wound on the winding drum layer by layer, so that the processed buses are wound more regularly, and the practicability is enhanced.

This invention relates to a method for preparing potassium fluorotantalate from tantalum solution, comprising the following steps: heating and conversion of the solution, transferring the potassium fluorotantalate crystallization solution, cooling and crystallizing the potassium fluorotantalate, discharging the potassium fluorotantalate crystallization mother liquor, washing the potassium fluorotantalate crystals, discharging the potassium fluorotantalate crystals, and drying the potassium fluorotantalate crystals. The beneficial effects are: the method of this invention is suitable for preparing potassium fluorotantalate from tantalum solution with a tantalum oxide concentration of 50 g / L to 80 g / L; high-concentration tantalum solutions do not require dilution with deionized water, saving conversion reaction materials; before adding the potassium fluorotantalate crystallization solution to the crystallization washing tank, hot water is circulated through the media jacket to preheat the crystallization washing tank, preventing excessively rapid cooling when the potassium fluorotantalate crystallization solution is added to the crystallization washing tank, thus preventing the formation of a large number of crystal nuclei or the generation of fine crystals, while allowing sufficient time for crystal growth.

The utility model discloses a molten salt energy storage system heating cable, which comprises a heating cable and power leads, two ends of the heating cable are respectively connected with one power lead, the heating cable comprises a central heating wire core, an outer armor layer and a mineral insulating material layer between the heating wire core and the armor layer, and the power leads comprise middle conductive wire cores. The heating cable comprises a heating wire core and an insulating plastic layer wrapping the conductive wire core, the heating cable further comprises heat insulation wire cores, the heat insulation wire cores are arranged at the two ends of the heating wire core respectively, an armor layer and a mineral insulating material layer wrap the heat insulation wire cores, one end of each heat insulation wire core is connected with the heating wire core, and the other end of each heat insulation wire core is connected with the conductive wire core. The fused salt energy storage system heating cable further comprises a sealing sleeve, and the sealing sleeve is arranged at the joint of the heating cable and the power lead. The heating cable can isolate the heat of the heating wire core, thereby guaranteeing the safety of the power lead. The sealing of the mineral insulating material outside the heating wire core can be ensured, and the safety of the cable is improved.

The invention belongs to the technical field of smoking articles, and discloses a central rod-shaped heating element and a low-temperature smoking set, the central rod-shaped heating element comprises an insulating base and a heating element body, the heating element body comprises an inner tube electrode, an outer tube electrode, an inner heating tube, an outer heating tube and an inner and outer tube connecting piece; one end of the inner tube electrode is inserted into a mounting hole in the insulating base in a matching manner, and the other end is connected with the inner heating tube; one end of the outer tube electrode is fixedly connected with the insulating base, and the other end of the outer tube electrode is connected with the outer heating tube; and one end of the outer heating tube far away from the outer tube electrode is provided with an inner-outer tube connecting piece which is fixedly connected with the inner heating tube to form a series access. The two SUS304 pipes with different diameters and different resistance values are connected to form a double-pipe series connection structure with the inverted-U-shaped cross section, the double-pipe series connection structure serves as the heating body, the surface temperature uniformity of the heating body is improved, the surface roughness is low, the manufacturing cost is reduced, assembling is convenient, and application and popularization value is achieved.

The embodiment of the invention belongs to the display technology, and provides a heat dissipation method and laser projection equipment, and the laser projection equipment comprises a shell, a laser assembly located in the shell, a heat dissipation assembly located on one side of the laser assembly and used for dissipating heat of the laser assembly, and a heating assembly used for heating air in the shell. And when the environment temperature is within the first preset temperature range, the heating assembly is controlled to heat the air entering the shell, the temperature of the air in the shell is increased, and therefore the medium in the heat conduction pipe can be unfrozen when the medium in the heat conduction pipe in the heat dissipation assembly is frozen. After the preset time, whether the medium in the heat conduction pipe is frozen or not is detected, if yes, the heating assembly is controlled to increase the heating temperature of the air entering the shell so that the medium in the heat conduction pipe can be unfrozen continuously, and if not, the heating assembly is controlled to keep the heating temperature of the air in the shell so that the medium in the heat conduction pipe can be prevented from being frozen again; therefore, normal heat dissipation of the heat conduction pipe can be guaranteed, and normal operation of equipment is guaranteed.

The invention discloses a direct radiation type self-adaptive heat pump system which comprises a compressor, an outdoor evaporation plate, an indoor heat radiation plate, a throttling device and a temperature control device. Wherein the compressor, the outdoor evaporation plate, the throttling device and the indoor heat radiation plate form a heat pump system. The outdoor evaporation plate is composed of a common evaporation plate, a black coating on the surface of the common evaporation plate, a metal block and a defrosting belt. A surface coating of the outdoor evaporation plate is made of black paint, metal powder is added into the paint, and the heat exchange area is increased by adopting the design that metal block protrusions are additionally arranged on the surface. The defrosting belt is powered by the photovoltaic panel, the power supply unit is small in size and safer when placed outdoors, the temperature of the outdoor evaporation plate is increased in an auxiliary mode in extremely cold weather, and the heat exchange efficiency is improved. The system transmits heat generated by the indoor smoke-generating household appliances to the outdoor evaporation plate through the flue, assists in increasing the temperature of the outdoor evaporation plate, and achieves full utilization of the heat. Solar energy can be absorbed to the maximum extent, the energy utilization rate is increased, and environmental pollution caused by traditional heating is reduced.

The present invention discloses a processing method for continuous billet opening of large square billets, comprising: heating large square billet billets; descaling the surface of the heated billet with high-pressure water; opening the descaled billet by continuous rolling in 9 passes with alternating vertical and horizontal positions to obtain an intermediate billet; and at the same time, the parameters of the rolling pass in the 9-pass continuous rolling opening are disclosed. The present invention also discloses the intermediate billet obtained by the above processing method. The present invention improves the uniformity of the deformation of the corners of the large square billet by optimizing the billet opening rolling pass and reasonably matching the pass parameters, thereby preventing the excessive deformation of individual passes; at the same time, the heating temperature and the water pressure during descaling are controlled to avoid excessive temperature drop at the corners of the billet, improve the deformation characteristics of the corners, thereby reducing the generation of rolling cracks at the corners of the large square billet, and significantly reducing the grinding ratio of the intermediate billet, and even achieving no grinding, which effectively reduces the production cost and improves the yield rate of large square billets; the present invention has a simple process and can be industrialized after the parameters are limited.

The utility model provides a flue gas waste heat gradient total recovery system for central heating, which comprises a controller, a first-stage heat exchanger, a dust remover, a second-stage heat exchanger, a spray tower, a third-stage heat exchanger, a first-stage plate heat exchanger, a second-stage plate heat exchanger, a centrifugal heat pump unit and a screw type heat pump unit, a first-stage heat exchange circulation pipeline is arranged between the first-stage heat exchanger and the first-stage plate heat exchanger, a second-stage heat exchange circulation pipeline is arranged between the second-stage heat exchanger and the second-stage plate heat exchanger, and a third-stage heat exchange circulation pipeline is arranged between the spray tower and the third-stage heat exchanger. A heating return water circulation heating pipeline is arranged among the first-stage plate heat exchanger, the second-stage plate heat exchanger, the centrifugal heat pump unit and the screw type heat pump unit, and a fourth-stage heat exchange circulation pipeline is arranged among the third-stage heat exchanger, the centrifugal heat pump unit and the screw type heat pump unit. The system can achieve effective recovery of flue gas waste heat, meanwhile, the waste heat recovery cost is low, and system operation is safe and reliable.

The electromagnetic reactor disclosed in the present invention comprises a reactor body, a head, a main shaft, a feed port, a discharge port, an electromagnetic stirrer and a spiral belt; the electromagnetic stirrer is arranged outside the reactor body, and the spiral belt is arranged outside the reactor body and is arranged around the main shaft; the spiral belt moves under the action of electromagnetic force to realize the stirring of materials in the reactor body, so that the materials are fully mixed; at the same time, an induced current is generated in the spiral belt, and the eddy current heat generated by the induced current heats the materials, and the heat does not need to be transferred from the outside of the reactor body to the inside of the reactor body, so the heating efficiency is higher. The main shaft is a hollow structure, and a heater is arranged in the hollow structure of the main shaft; on the one hand, the heater and the eddy current heat form two heating sources inside and outside the reactor, which improves the heating efficiency and heating temperature of the materials and ensures the heating effect; on the other hand, under the stirring action of the spiral belt, the materials are in continuous contact with the main shaft, so that the heat transfer of the main shaft to the materials is realized, which solves the problems of low center temperature of the reactor body, slow heating and low heating efficiency.

The present invention relates to an in-situ fretting corrosion fatigue testing machine and method based on synchrotron radiation diffraction and three-dimensional imaging, and belongs to the field of fretting corrosion fatigue testing. The testing machine includes an axial fatigue loading system, a fretting loading system and a corrosion environment control system; the axial fatigue loading system includes a driving device, a load control device, and a load sensing device; the load sensing device is used to measure the axial force and normal force in real time; the driving device is used to drive the load control device to enable the load control device to achieve axial displacement; the load control device is used to perform axial fatigue loading on the sample; the fretting loading system includes a fretting wear device. The testing machine is used to realize the real-time three-dimensional imaging characterization of material wear spots and crack shapes under fretting corrosion environment and the characterization of residual stress evolution law.

The invention provides a turnout TY wing rail heat treatment process, and relates to the technical field of steel rail heat treatment, and the turnout TY wing rail heat treatment process comprises the following steps: adjusting magnetic field distribution of a magnetic induction heating mechanism, so that the magnetic field density of a top heating space formed by a top coil is greater than the magnetic field density of a first heating space and the magnetic field density of a second heating space; the top coil is connected to the first side coil through the first arc-shaped coil, and the top coil is connected to the second side coil through the second arc-shaped coil; the radius R1 of the first arc-shaped coil is adjusted, and the value range of R1 is within 17-19 mm; the radius R2 of the second arc-shaped coil is adjusted, and the value range of R2 is within 17-19 mm; the rail head is matched with the magnetic induction heating mechanism, the magnetic induction heating mechanism and the turnout TY wing rail move relatively in the extending direction of the turnout TY wing rail, and the rail head is heated through the magnetic induction heating mechanism. The steel rail obtained through heat treatment of the process is high in quality.

The present invention belongs to the field of heat-not-burn cigarette smoking utensils, and particularly relates to an oxygen-depleted heating smoking utensils with a door at the bottom, a cigarette assembly and a smoking method comprising the same. The oxygen-depleted heating smoking utensils include a cigarette accommodating chamber (3), a door (4) is provided at the bottom of the cigarette accommodating chamber (3), a smoke extraction element (6) is provided in the cigarette accommodating chamber (3), and a fixing and limiting mechanism (7) is provided between the smoke extraction element (6) and the cigarette accommodating chamber (3). The present invention also discloses a cigarette assembly and a smoking method comprising the oxygen-depleted heating smoking utensils. The smoke extraction element of the present invention is retained inside the cigarette accommodating chamber by a fixing and limiting mechanism, and is not easy to fall or be lost. There is a door at the bottom of the cigarette accommodating chamber, and the smoke extraction element can be moved. The tobacco segment and the filter segment are respectively plugged in / disassembled at both ends of the cigarette accommodating chamber, which is convenient for operation.

The invention belongs to the technical field of preparation of high-temperature alloy cold-rolled sheets, and particularly relates to a preparation method of an Alloy 90 high-temperature alloy cold-rolled sheet, which comprises the steps of vacuum induction melting, air consumable melting, forging, hot rolling and cold rolling. According to the method, an element material with the purity larger than or equal to 99.95% is used, vacuum induction melting is carried out under high vacuum in the whole process, a high-purity alloy ingot is obtained, after the surface is turned by at least 20 mm, vacuum consumable melting is carried out under high vacuum and low current voltage, then the surface is turned by at least 30 mm, forging is carried out, high-temperature heating and small deformation are required for forging, and it is guaranteed that a forging stock with the surface free of cracks is obtained; and surface polishing is not needed, hot rolling is directly conducted, and the yield can be increased by 3%-5%. Hot rolling follows the high-temperature small deformation principle, it is ensured that a hot-rolled blank without cracks on the surface is obtained, cold rolling follows the large deformation principle, the number of times of the rolling process is reduced, the cost is reduced, the yield is increased, and finally a high-quality Alloy 90 high-temperature alloy cold-rolled sheet finished product is obtained.

The invention discloses a corrosion-resistant coating on the surface of an impeller, and relates to the technical field of coating materials. The invention discloses a corrosion-resistant coating on the surface of an impeller, comprising a bonding layer coated on the surface of the impeller, and a nickel-based tungsten carbide ceramic coating arranged on the surface of the bonding layer; the bonding layer is obtained by mixing a modifier, triolein, anhydrous ethanol, glycerol, di-n-octyl phthalate, and cyclohexanone and then brushing the mixture on the surface of a metal substrate; the application prepares a bonding layer between the ceramic coating and the metal substrate, which not only improves the bonding strength between the ceramic coating and the metal substrate, but also effectively eliminates the thermal stress generated by the mismatch of the expansion coefficient between the metal substrate and the ceramic coating, thereby achieving a toughening effect and improving the thermal shock resistance and life of the material.