149results about How to "Heating temperature is easy to control" patented technology

The invention relates to a high-temperature micro-nano press mark test device and method in vacuum environment, and belongs to the field of mechanical and electronic integration precise instrument. The device can be used in vacuum environment; the oxidization caused by high-temperature environment on a press head and a test specimen can be prevented; the influence of air flowing on the test specimen heating is weakened; the stable heating temperature of the test specimen is ensured; further, the test analysis on the test specimen micro mechanical properties can be started; the characteristics parameters and the like of material hardness, elasticity modulus, creep properties and thermo-mechanical coupling effects are obtained so as to study the influence rule of variable-temperature and high-temperature environment on the material micro mechanical behaviors, deformation damage mechanisms and micro tissue structure evolution; the material and product design manufacturing, service prediction and reliability evaluation are guided. The structure of the device is compact; the measurement precision is high; the application range is wide; the wide application prospects are realized in the fields of material science, equipment manufacturing, ferrous metallurgy, national defense and military, aerospace and the like. According to the test method provided by the invention, the rich material micro mechanical property test theories and technical systems are combined.

The invention discloses a thermal excitation device for infrared thermal imaging nondestructive detection on a concrete structure. The device comprises an infrared radiation device, a boiler cradle, a boiler cradle rotation device and a boiler cradle lifting device, wherein the infrared radiation device comprises a radiation device array consisting of a plurality of ceramic radiation devices and a temperature control device electrically connected with the radiation device array; the radiation device array is fixed on the boiler cradle which is made of smooth stainless steel, and is connected with a moving component of the boiler cradle lifting device by the boiler cradle rotation device. According to the invention, a thermal source used by the technique of infrared imaging nondestructive detection on concrete not only is small in spatial gradient, high in time gradient, high in heating efficiency, and high in heating temperature controllable precision, but also can move conveniently and can be regulated in height and angle.

The invention discloses a ball valve with all-welded valve bodies and a welding method of the ball valve. The ball valve comprises a spherical valve spool, a left valve body, a right valve body, a middle valve body, a valve stem, a valve seat, sealing rings, a press plate, a lining plate and the like. The ball valve is applicable to valve systems in gas and liquid delivery pipelines, and a high-frequency welding process is adopted to produce sealed parts. The spherical valve spool is placed in a spherical cavity in the middle valve body together with the lining plate, a thrust plate, a sliding bearing and the like, the sealing rings are mounted on the left and right sides of the spherical valve spool, the valve seat and a valve-seat support ring thereof are mounted on the inner walls of the valve bodies on the left and right sides together with an elastic mechanism, joint parts between the middle valve body and the left and right valve bodies are all sealed by welding, and one end of the valve stem penetrates the middle valve body and is connected with the internal valve spool. The valve stem rotates to drive the spherical valve spool in the cavity to rotate, so that the valve is controlled to be turned off. The ball valve is simple in structure, good in sealing performance, stable in welding and sealing quality, high in production efficiency and applicable to pipeline delivery systems for petroleum, natural gas and the like, and the problem of leakage of conventional valves is solved.

The invention discloses biaxial orientation processing equipment for a thermoplastic plastic pipe. The equipment comprises an extruder, a cooling device, a front traction device, a heating device and a back traction device in turn according to a process flow, wherein an extension core mold is arranged in the heating device; and the heating device consists of a water groove which is partitioned into a preheating region, a heating region and a cooling region. The processing equipment takes the water groove as the heating device, has the characteristics of simple structure, easiness of manufacturing and low manufacturing cost, heats the pipe by water temperature, has the advantages of easiness of temperature control, stable temperature and uniform pipe heating and contributes to enhancing the quality of the pipe.

The high precision tungsten plate producing process is especially suitable for producing high precision shielding tungsten plate for CT machine. The production process includes coating the blank tungsten plate with graphite emulsion of 15-20 wt% concentration, rolling after homogeneous heating, electrolytic polishing and pressurizing flattening. The said process is suitable for production of high precision tungsten plate with thickness deviation within 0.01 mm, flatness within 0.005 mm, lower surface roughness and sizes 0.203x146.05x257.05 mm.

The invention discloses a damage-free compressor rotor heat jacket assembly disassembling device. The damage-free compressor rotor heat jacket assembly disassembling device is provided with a jacking mechanism which is capable of lifting vertically, a clamp jig capable of clamping a workpiece is arranged at the top of the jacking mechanism, a high frequency heating device used for heating the workpiece and capable of moving leftwards and rightwards is mounted on the upper left portion of the jacking mechanism, a hydraulic ejection mechanism capable of ejecting out a crankshaft is mounted above the jacking mechanism and the high-frequency heating device, a pressure center of the hydraulic ejection mechanism is coincided with the center of the jacking mechanism, a rotor shifting mechanism capable of clamping a rotor to move leftwards and rightwards is mounted on the upper right portion of the jacking mechanism and below the hydraulic ejection mechanism, a rotor cooling mechanism capable of cooling a rotor shifted from the rotor shifting mechanism is mounted below the rotor shifting mechanism, and the jacking mechanism, the high-frequency heating device, the hydraulic ejection mechanism, the rotor shifting mechanism and the rotor cooling mechanism are connected with a controlling mechanism. The damage-free compressor rotor heat jacket assembly disassembling device has the advantages of simplicity in operation, high disassembling efficiency, small damage to disassembled parts, and good reusability.

The invention provides an electromagnetic thermal desorption device used for remediating contaminated sites. Contaminated soil is heated, stirred and conveyed in a ferromagnetic material stirring device and a tank body through electromagnetism. Through heating the contaminated soil in the device, the thermal desorption heat transfer property and the organic pollutant separating effect are improved. The electromagnetic thermal desorption device comprises a material conveying device, an electromagnetic heating device and an exhaust gas treating and purifying device, wherein the electromagnetic heating device comprises an excitation controller, a heating coil, a thermal insulating material, a heating and conveying device, a temperature probe, a circulating water cooler and the like; and the exhaust gas treating and purifying device comprises an exhaust gas collecting pipe, a dust precipitator, a condenser, a collector, a catalytic oxidation device and the like. For heavy metal, low-melting-point glass powder and natural mirabilite powder are added, glassy substances are formed after temperature is raised through heating, the glassy substances solidify, and heavy metal pollutants are eliminated. The electromagnetic thermal desorption device has the characteristics of high heating speed, high heat transfer effect and small exhaust gas output. The size of a system is small, a moving treatment platform can be integrated, and integral transporting in-situ operation is realized.

The invention relates to a heat treatment device of rod-like materials. The device comprises a heating furnace, a combustor for combusting fuel, a loading module, a feeding module, a charging module and a slip pipe. The loading module automatically screen the rod-like materials in a bunker, adjust the state of the materials and push the materials to a conveyor belt of the feeding module; a material moving device sequentially move the rod-like materials on the conveyor belt into a feed chute one by one; a pneumatic material pushing device pushes the rod-like materials in the feed chute into a heating furnace; once one rod-like material is pushed into a feed inlet, one rod-like material is discharged from a discharge port of the discharging module; a heat supply source in the heating furnace is employed to heat the rod-like materials from the outside of tubes; and the heat laden in the flue gas is treated by a heat exchanger and a high pressure blower fan to realize recovery of flue gas waste heat. The device provided by the invention has high degree of automation, is suitable for batch heat treatment of rod-like materials and has the advantages of high efficiency, low cost, energy saving and environmental protection.

The invention relates to a method for preparing astragalus membranaceus decoction pieces. The method is characterized by comprising the following steps: (a) cleaning and selecting astragalus membranaceus; (b) holding the cleaned and selected astragalus membranaceus with a clean container, soaking the cleaned astragalus membranaceus in water, thoroughly infiltrating the astragalus membranaceus, and draining water; (c) cutting the astragalus membranaceus into slices having a thickness of 1-2mm after water is drained, and keeping the slices at 60-70 DEG C for 5-6 hours for baking; (d) dissolving honey in boiling water, drying water at 130-150 DEG C to obtain a faint yellow sticky liquid, filtering the liquid to obtain filtrate which has a density of more than 1.349, and leading the ratio of the honey to the boiling water to be (40-50):1; and (e) uniformly stirring the dried astragalus membranaceus decoction pieces in the filtrate which is 20-30 percent of the weight of the astragalus membranaceus decoction pieces, putting the astragalus membranaceus decoction pieces into a marmite after the filtrate is completely absorbed, roasting the astragalus membranaceus decoction pieces at 200-220 DEG C for 8-10 minutes, naturally cooling and packaging. According to the method, the heating temperature and time are controllable, the uniform degree of astragalus membranaceus preparation can be improved, and high efficiency is achieved; and the astragalus membranaceus decoction pieces have high content of astragaloside and calycosin-7-glucoside, and the drug efficacy is better.

The invention provides a system for restoring organic contaminated soil by forced ventilation and spiral stirring thermal desorption, which comprises an air preheating system, a spiral stirring thermal desorption system, a tail gas treatment system and a control system, wherein the air preheating system consists of a blower and an air heater, the spiral stirring thermal desorption system consistsof a spiral stirring thermal desorption device and a draft fan, the tail gas treatment system consists of a cyclone dust collector, a dehumidifier and an absorption tower, and the control system can realize the effective control of the rotation speed of a spiral stirrer, the air preheating temperature and the soil heating temperature. The system can be used for restoring soil contaminated by volatile / semi-volatile organic matters.

The invention relates to an electromagnetic induction heating 3D printing and forming system, and relates to the technical field of 3D printing equipment. By adopting an electromagnetic induction heating technology, the electromagnetic induction heating can realize high heating efficiency, energy conservation and environmental protection, so that the defects of low efficiency, high energy consumption and the like of resistance wire heating can be avoided. In addition, the electromagnetic induction heating is high in temperature and uniform in heating, controllable in heating speed and heatingtemperature, and relatively high in control sensitivity; next, by adopting an electromagnetic heating disk mode, an electromagnetic induction coil is wound into a disk shape, so that the overall structural size is small, and too much space of the forming system is not occupied; the invention provides circular, square, rectangular and fan-shaped electromagnetic induction coil winding modes, so thata thought is provided for the electromagnetic induction heating coil winding modes; and specific to different equipment structural characteristics, different winding modes can be selected, so that space can be utilized effectively, and heating uniformity is ensured.

The invention relates to a processing method of wine-fried cistanche. The method comprises the following steps: at room temperature, moistening crude cistanche in yellow wine added with water until the yellow wine is completely absorbed by the cistanche, and heating and drying the moistened cistanche by use of microwave to obtain the wine-fried cistanche. By heating the moistened cistanche by use of microwave, the method disclosed by the invention ensures that the temperature and time of heating the cistanche are controllable; therefore, the processing course is controllable.

The invention provides a magnet used for a high-frequency welding device, the high-frequency welding device and an automatic peeling welding machine. The automatic peeling welding machine comprises a fixed cable clamp device, an initial cable cutting device, a locating movable cable clamp device, a peeling and cable trimming device, a forking and cable cutting device, the welding device and a cable supporting frame. The locating movable cable clamp device is arranged on one side of the fixed cable clamp device, and the initial cable cutting device, the forking and cable cutting device, the peeling and cable trimming device, a stamping block with an inverted-V-shaped opening and the welding device are arranged on the other side of the fixed cable clamp device in sequence. The cable supporting support is arranged outside the cable clamp fixing device. The magnet is in the U shape, and bosses are extended from the same sides of the two ends of the magnet symmetrically. The automatic peeling welding machine is high in automation level, high in production efficiency and low in equipment cost, and the technical effect that the production efficiency and the product quality are high is achieved. The high-frequency welding device used in the automatic peeling welding machine and the specially-used magnet for the high-frequency welding device are provided at the same time.

The invention discloses a biodegradable scaffold, which comprises a scaffold main body prepared by a biodegradable material. A lot of magnetic particles are distributed in the scaffold main body. According to the biodegradable scaffold, the magnetic nano-particles are added to the biodegradable polymer of the biodegradable scaffold; after expansion, the magnetic nano-particles inside the biodegradable scaffold are heated with the external alternating magnetic field to generate the heat energy, such that the local heating for the scaffold is achieved, the scaffold is subjected to thermoplastic deformation; the scaffold can be fixed and formed after the scaffold is cooled. The heating way by adopting the external alternating magnetic field has advantages of heating point centralizing, controllable heating temperature and less damage to the surrounding environment organizations, such that the retraction rate of the biodegradable scaffold of the present invention after the expansion can be effectively reduced, the problem of the restenosis generating inside the scaffold due to the scaffold collapsing and the scaffold shifting can be avoided, wherein the high retraction rate of the biodegradable scaffold in the prior art can cause the scaffold collapsing and the scaffold shifting.

The invention discloses a multifunctional chicken powder ingredient stirring mixer capable of being conveniently maintained. The multifunctional chicken powder ingredient stirring mixer comprises a mixing and stirring box, a drive motor, a quantitative mixture feeding device, an intelligent temperature control device, a stirring shaft, spiral stirring blades, a damping base structure, supporting legs, a non-slip mat block, a temperature sensor, a discharge pipe and a main charging hole, wherein the drive motor is mounted on the middle upper part of the mixing and stirring box by virtue of bolts. A fixed pin shaft is mounted at a position which is 3-5cm away from the left side of the middle upper part of a quantitative feeding box, so that the quantitative feeding box can rotationally pourout materials to the right by utilizing the pressure of the mixture pressed to drop down, and the quantitative feeding function is realized. Moreover, the temperature controller adopts a silicon controlled controller, so that a heating temperature of a sheathed heating wire is conveniently controlled, and chicken powder is further prevented from being affected with damp to go bad; and due to the arrangement of a damping bottom plate, a rubber damping block and a damping spring, the supporting legs are prevented from dropping off from the mixing and stirring box, the damping effect is further improved, and the multifunctional chicken powder ingredient stirring mixer is convenient to maintain.

The invention discloses an automatic shaping method of parallel U-shaped tube unit of energy-saving fluorescent tube, which comprises that first a glass tube via a transmitter is fed into a heater, the bottom of parallel U-shaped tube is heated and softened, then the softened glass tube is bent into U-shape, to be fed into the heater, the side tube of the parallel U-shape tube is heated, and the softened U-shaped glass tube is straightly inserted between cavity die and terrace die of a shaping die, the cavity die and terrace die via a match / release mechanical arm clamps the bent glass tube in a U-shaped slot which two sides are bent at same curvature, a blow tube blows air into the glass tube to stuff and shape the bent portion of the glass tube according to the U-shaped slot, the cavity die and terrace die are separated by the match / release mechanical arm, and the glass tube released from die is a tube unit. The invention can reduce process cost, improve efficiency, and improve material utilization of energy-saving fluorescent tube.

The invention relates to a method for preparing milkvetch root fried with honey. The method comprises the following steps: moistening raw milkvetch root and honey until the honey water is totally absorbed by the raw milkvetch root, frying the moistened milkvetch root at the temperature of 220-240 DEG C, thereby obtaining the milkvetch root fried with honey. According to the preparation method provided by the invention, the milkvetch root is moistened and fried at a high temperature, so that the heating temperature and time of the milkvetch root can be controlled, and the preparation process is controllable. According to the milkvetch root fried with honey prepared by the method, the content of astragaloside is 6.56-11.21mg / g, the content of calycosin-7-glucoside is 3.95-8.15mg / g, and the content of the components is far higher than that in the prior art.

The invention discloses an engine. The engine comprises a fuel oil guide rail, a plurality of connecting pipes, a plurality of fuel oil sprayers, a plurality of fuel oil spraying detection devices, a plurality of fuel oil heating devices, and a controller; the fuel oil sprayers are connected to the fuel oil guide rail respectively through the connecting pipes; the fuel oil spraying detection devices are used for detecting working states of the fuel oil sprayers; the fuel oil heating devices are arranged corresponding to the connecting pipes respectively; each fuel oil heating device comprises a heater component and a driver; each heater component comprises a temperature detection module and a heater; and the controller is connected with the fuel oil spraying detection devices and the fuel oil heating devices of the engine. The engine can reduce the phenomena that fuel oil wets a wall, and engine oil is diluted; the combustion process of the engine is more sufficient, and the generation of carbon deposition and hydrocarbon emissions are reduced; and the heat efficiency of the engine is improved, and meanwhile oil consumption is reduced.

The invention discloses an oil-gas well hot N2 plugging removal technology method. The method comprises the steps that a plugging removal device is connected to an oil (gas) extraction wellhead through ground pipelines; step 2, an injection pipeline is subjected to pressure test according to the level of the oil (gas) extraction wellhead; step 3, hot nitrogen is injected into a well, dissolved and subjected to pressure release, the hot nitrogen is injected, dissolved and subjected to pressure release again, and the process is repeated for multiple times until plugging is removed. The device comprises a liquid storage tank, the wellhead and a nitrogen production device, an oil tube is connected to the lower portion of the wellhead and sleeved with a sleeve, an inlet / outlet is formed in the side face of the wellhead and communicated with the oil tube, and an inlet / outlet is formed in the side face of the sleeve and communicated with an annular space portion of the oil sleeve. The method has the advantages that the hot nitrogen does not burn or blast, has no chemical corrosivity or pollution and is safe and reliable, the heating temperature can be controlled to 450 DEG C, and the price is low. The method is suitable for plugging removal of obstruction in an immovable string of a well with thick oil, high pour point oil and high wax-bearing oil and a non-circulation channel of a high pressure gas well, and is high in plugging removal efficiency, the nitrogen can escape rapidly, and the plugging materials can be taken out by gas flowback.

The invention discloses an installation method for a steam turbine sleeving type cylinder lantern ring, belongs to the field of machining, and aims to solve the problems that steam turbine sleeving type cylinder lantern rings are complex in installation method and low in efficiency. The installation method comprises the steps that 1, a lifting ring is internally provided with a heating ring in a sleeving mode, the heating ring is internally provided with the lantern ring in a sleeving mode, puller bolts are inserted into bolt holes of the lifting ring and bolt holes of the heating ring in the radial direction so that the position of the heating ring can be fixed, and a lantern ring assembly is obtained; 2, a cylinder is horizontally placed, the left side and the right side of the rear portion of the air cylinder are fixedly supported, and the front portion of the cylinder are movably supported; and 3, the lantern ring is heated in an induction heating mode, thus, the lantern ring expands through heating, when an inner hole of the lantern ring expands to the target size, the lantern ring is horizontally moved to the target position of a cylinder body, and after the lantern ring is cooled to the room temperature, installation of the cylinder lantern ring is completed. According to the installation method, the medium frequency induction heating mode is adopted, the heating speed is high, it costs 30-40 min to install one lantern ring, and the efficiency is high.

The invention provides a system for repairing the organic contaminated soil by a soil ventilation-vertical desorption furnace, comprising a thermal desorption system, a tail gas treatment system and a control system, wherein the thermal desorption system consists of an air compressor 1 and a vertical desorption furnace 2; the tail gas treatment process consists of a cyclone dust collector 3, a dehumidifier 4 and an adsorption tower 5; and the control system 6 can realize the effective control of the soil heating temperature. The system can be used for repairing the organic contaminated soil in which the main contaminants are volatile / semivolatile.

The invention discloses a magnetic field annealing furnace experimental apparatus. The magnetic field annealing furnace experimental apparatus comprises a furnace body, heating assemblies and magnetizing assemblies, and the heating assemblies and the magnetizing assemblies are sequentially arranged outside the furnace body in an encircling manner; the furnace body is a pipe body with the two ends open; the two ends of the furnace body are provided with end covers; the furnace body is internally provided with an in-furnace feeding area; the furnace body is a silicon carbide muffle pipe; each heating assembly comprises an electric resistance wire, a thermocouple and a temperature control meter; the thermocouples and the temperature control meters jointly control the temperature of the electric resistance wires; each magnetizing assembly is a magnet exciting coil; and the magnet exciting coils are wound outside the heating assemblies. In the magnetic field annealing furnace experimental apparatus, the silicon carbide muffle pipe is adopted as the furnace body, the furnace body is made to be high in heating speed and have a very good high-temperature resistant effect, the annealing temperature of the magnetic field annealing furnace experimental apparatus is made to be raised, and the application range of the magnetic field annealing furnace experimental apparatus is widened; and a manner that the coils are wound outside the furnace body is adopted, the size of the magnetic field annealing furnace experimental apparatus is made to be reduced, and the manufacturing cost is reduced.

The invention relates to the technical field of fluorine chemical industry, and in particular relates to a direct separation method of a silicon tetrafluoride and anhydrous hydrogen fluoride mixed gas. The method comprises the following process steps: a, collecting a silicon tetrafluoride and hydrogen fluoride mixed gas, which is obtained by pyrolysis of fluosilicic acid, compressing through a compressor, entering a condenser 1, cooling, and entering obtained liquefied hydrogen fluoride to a condensate storage tank; b, feeding the cooled silicon tetrafluoride gas to a condenser 2, further cooling with an ethylene glycol-water solution, removing residual hydrogen fluoride to obtain a silicon tetrafluoride gas and entering a silicon tetrafluoride storage tank 1 to store; and c, carrying out rectification and purification on liquid phases in the step a and the step b, and controlling the operation pressure and the overhead condensation temperature of a rectifying tower to obtain the refined liquid hydrogen fluoride product. The method has the advantages of being feasible to operate, low in investment, low in energy consumption, and free of difficult-to-treat waste, and is an economical, efficient and environment-friendly separation method; and equipment is not corroded.

The invention relates to an apparatus and method for continuous desalination of seawater. A hydrophobic carbon-based composite film is prepared by compounding of a carbon-based material such as carbonnanotubes or graphene, and a hydrophobic polymer, a hydrophobic carbon-based composite film with a micro-nano multi-level pore structure is obtained through laser drilling, the surface is further coated with photo-thermal / electro-thermal responsive polymer molecules to enhance electro Joule heat and photo-thermal effects to improve an energy utilization rate, and finally a hydrophobic carbon-based composite film with multi-level pore structure and electro-thermal and photo-thermal effects is obtained. A corresponding device is designed to apply the hydrophobic carbon-based composite porous film to an electro-thermal / photo-thermal driven seawater desalination process, conditions are controlled to cause the hydrophobic carbon-based composite porous film to generate heat, the heat is used asa heat source to provide a driving force for mass transfer in a water phase change process, and condensation is performed to recover water vapor to finally realize seawater desalination. The method combines a thermal phase change process and a film method, and can realize continuous seawater desalination for 24 h alternately between electro-thermal and photo-thermal.

The invention discloses a temperature-controllable real-time temperature acquisition system for heat transfer coefficient evaluation. The temperature-controllable real-time temperature acquisition system comprises a silicone rubber connecting plate and more than two temperature acquisition devices, wherein each temperature acquisition device comprises a heating plate, a temperature sensor, a silicone rubber opening box, a sensor connector and a power line connector, the rear end of the silicone rubber opening box is fixed on the silicone rubber connecting plate and the opening of the silicone rubber opening box is formed in the front side, the heating plate and the temperature sensor are both arranged in the silicone rubber opening box, the heating plate is parallel to a back plate of the silicone rubber opening box, the temperature sensor is arranged on the front side of the heating plate, a probe of the temperature sensor right faces the opening in the front side of the silicone rubber opening box, the power line connector is connected with the heating plate through a power line penetrating through the silicone rubber opening box, and the sensor connector is connected with the temperature sensor through a signal transmission line penetrating through the silicone rubber opening box. The temperature-controllable real-time temperature acquisition system is simple in integral structure, low in cost and convenient to implement, mount and carry, heats a tested point locally during application, and is low in energy consumption and convenient to popularize and apply.

The invention discloses building block forming equipment for industrial waste residues. The building block forming equipment for the industrial waste residues comprises a base and a controller arranged on the base, wherein a mixing mechanism, a forming mechanism and a pressing mechanism which are matched with one another are arranged on the base; the mixing mechanism comprises a storage barrel and a raw material box located on the upper side of the storage barrel, and stirring assemblies are arranged on the storage barrel and the raw material box; the forming mechanism comprises an obliquely-arranged forming charging barrel and an extrusion device located in the forming charging barrel, and a forming die fixedly connected with the forming charging barrel is arranged on one obliquely-downward side of the forming charging barrel; the pressing mechanism comprises a pressing support and a pressing device matched with the forming die, the pressing device comprises a cutting frame, a pressing plate located in the cutting frame, a cutting air cylinder and a pressing air cylinder, wherein the cutting air cylinder and the pressing air cylinder are located on the pressing support. The building block forming equipment for the industrial waste residues has the effects of being simple in structure, high in production efficiency, high in reliability and good in building block processing quality.

The invention relates to a device for detecting the water content of coal tar. The device comprises a flask, a condensing tube, a U-shaped tube, a bent tube, a drainage bent tube and a testing tube, wherein the flask adopts a double opening flask; the bent tube in which a thermometer is arranged is communicated with the vertical opening end of the flask; the bent tube is communicated with the condensing tube; the condensing tube is transversely and obliquely arranged; the outlet end is relatively lower in position; the outlet end is communicated with the U-shaped tube; an outlet at the lower end of the U-shaped tube is inserted into a working solvent of a double-opened testing tube; and the side opening of the testing tube is communicated with that of the flash through the drainage bent tube. According to the device, a built-in thermometer is arranged inside the bent tube which is communicated with the vertical opening of the flask; the thermometer is arranged in the inner wall of the bent tube; the thermometer is integrally designed with the inner wall of the bent tube and is a part of the inner wall of the bent tube; the temperature of the fraction can be tested in real time, and the heating temperature can be controlled conveniently; and by utilizing the device, the process of testing the water content of the coal tar is more convenient and rigorous, and the testing result error is smaller.

The invention discloses a die cutting machine comprising a base, a punching head installed on the base and a drive device which is installed in the base and which is used for driving the punching head to implement the punching actions. The die cutting machine is characterized in that a lower die seat component is installed on the base; the lower end of the punching head is provided with a first slide rail, a second slide rail and an upper die seat component which is installed between the first slide rail and the second slide rail in an inserted assembling manner and which matches with the lower die seat component; the punching head is provided with a first locking component and a second locking component which are used for locking the upper die seat component; the upper die seat component comprises a heat die cutting seat, an upper cavity installed at the lower end of the cutting seat and a power box connected with the die cutting seat electrically, and the power box is installed on the base and is connected to the die cutting seat through a guide wire. The die cutting machine is safe to operate and convenient to disassemble and change and has ideal die cutting effect, high operating efficiency and high market competitiveness.

The invention relates to an electromagnetic induction heating motor comprising a motor body and an electromagnetic induction heating device. The electromagnetic induction heating device comprises a driving turntable sleeving a motor shaft of a motor body, a driving turntable compressing plate being arranged at the outer end surface and being fixedly connected to the motor shaft, and an electromagnetic induction disc being fixedly connected to the outer end surface of the driving turntable. A plurality of rectangular grooves are distributed on the electromagnetic induction disc uniformly alongthe circumferential direction and center lines of the rectangular grooves point to the circular center of the electromagnetic induction disk to form adial arrangement; and N-Pole or S-pole magnetic steel plates orienting to the bottoms of the grooves together are arranged in the grooves. According to the novel provided unique mode of heating a metal blank material, the metal blank material is heated by using electromagnetic induction and the electromagnetic induction disc being a core element for heating has no temperature rising during the heating process, so that no thermal losses are causedand energy-saving and environment-friendly effects are good. The electromagnetic induction heating motor has advantages of reasonable structure, wide application range, low manufacturing cost and good local heating capability and the like.

The invention discloses a high-temperature stirring ball mill. The high-temperature stirring ball mill comprises a ball mill power device, a coupling, a stirring rod and a grinding barrel, wherein thegrinding barrel comprises a heating tank and a vacuum tank in the heating tank; the stirring rod is arranged in the vacuum tank; the ball mill power device drives the stirring rod to rotate in the vacuum tank through the coupling; a heating body is arranged between the vacuum tank and the heating tank; the heating body is connected with a temperature-control probe in the vacuum tank; the temperature-control probe is used for obtaining the temperature information in the vacuum tank in real time; the heating body and the temperature-control probe are connected with an external control device; and the control device is used for the control over the heating temperature of the heating body according to the temperature information fed back by the temperature-control probe. The ball milling speed and the heating temperature can be controlled; the high-temperature stirring ball mill has the advantages of high temperature, high efficiency and low production cost; and compared with other high-temperature ball mills, the high-temperature stirring ball mill is lower in energy consumption and can provide an environment in which the temperature is higher and more stable.