30results about How to "Improve induction heating efficiency" patented technology

The invention discloses an electromagnetic induction heating press-roller, which has an integral double-end supporting structure and comprises a rotating device and a fixing device, wherein the rotating device consists of an action roller and a rotating shaft which are connected; the rotating shaft inputs a rotating torque to drive the action roller to rotate; the fixing device consists of a fixed shaft, a sleeve arranged on the outer side of the fixed shaft, magnetizers and excitation coils; through the magnetizers and excitation coils segmentedly installed outside the sleeve, a magnetic airgap is formed between the outside end face of the fixed magnetizer and the inner circular face of the rotating action roller; the alternating magnetic field forms a circuit through the magnetizer, the air gap and the action roller metal; the magnetic field in the action roller forms an eddy current so as to uniformly heat the working face of the rotating action roller. Since a structure of axially segmented magnetizers and excitation coils is adopted, a magnetic circuit is formed on the working face metal of the heating roller only to avoid the magnetic circuit penetration of the non-heating working part and reduce the excitation current, and simultaneously prevent the machine parts from overheating; besides, the induction heating efficiency can be improved so as to control the axial temperature gratitude of the heating roller continently.

The invention relates to a powder preparation method for an induction heating and radio frequency plasma combined atomizing powder system. The powder preparation method comprises the following steps that (1), raw materials are prepared and processed; (2), the system is pre-vacuumed and a protective atmosphere is established; (3), wire materials are straightened and conveyed; (4), high-frequency induction preheating is carried out; (5), radio frequency plasma melting is carried out; (6), powders are prepared by atomizing; (7), separation and dust removal are carried out; and (8), the powder size is graded. The powder preparation method for the induction heating and radiofrequency plasma combined atomizing powder system uses high purity metal wire material instead of the powders as the raw materials, so that the carrying of raw materials to adsorb gas and water is reduced; a technology of the high frequency induction heating combined with the radio frequency plasma smelting and gas atomization is adopted, during the whole process of heating, melting, and the gas atomization is free of pollution and impurities in the protective atmosphere, and the degree of superheat of liquid flow ordroplets is increased during the process of radio frequency plasma smelting; and high quality spherical powders can be obtained by adopting high pressure atomizing nozzles atomizing, and the yield ofmetal powders per unit time is increased.

The invention discloses a chamber component which comprises a chamber outer cylinder, an induction coil and a graphite sleeve, wherein an outer cylinder cavity serving as a reaction cavity is limited in the chamber outer cylinder; the induction coil is arranged around the chamber outer cylinder; and the graphite sleeve is sleeved in the outer cylinder cavity of the chamber outer cylinder. According to the chamber component disclosed by the embodiment of the invention, a graphite sleeve is arranged between a pallet and an induction coil and is closer to the induction coil than the pallet, thus the graphite sleeve experiences the induction heating of the induction coil before the pallet and can form a hot wall around the pallet, the pallet can be heated and subjected to heat preservation very easily, and the induction heating efficiency is improved. The invention also discloses metal organic compound chemical vapor deposition equipment with the chamber component.

The invention relates to a manufacture method for manufacturing a cantilever steel pipe with high strength and high toughness by using a hot-rolling coiled plate. The method comprises the following steps that: firstly, a hot-rolling coiled plate is rolled into an ERW welding pipe by using an ERW pipe welding machine set, the ERW welding pipe is heated by induction in induction heating equipment, the heating time is within 60-140s, the ERW welding pipe is heated to 910DEG C to 960DEG C, and austenitizing is carried out; then, the ERW welding pipe enters a water-cooling or steam-cooling quenching machine set to carry out quenching, the quenching and cooling speed of the ERW welding pipe is greater than or equal to 5DEG C/s, and a quenched martensite organization is obtained after quenching; tempering is carried out after quenching, induction heating is carried out by adopting the induction heating equipment in the tempering, the heating temperature of the quenched martensite organization is 220DEG C to 440DEG C, the tempering time is 80 to 180s, and a tempered martensite organization is obtained; and finally, straightening, flaw detection, surface inspection and sampling inspection are carried out to finally obtain the cantilever steel pipe with excellent performance, high strength and high toughness. The invention has the advantages that the invention adopts a heat treatment method of induction heating to cause the heated cantilever steel pipe to be evenly heated, decomposes the residual austenite when obtaining the tempered martensite after induction tempering and has low equipment investment, little maintenance cost of the equipment, small occupation area and small environmental pollution.

This invention discloses a method for producing thermal insulation sleeve of crucible with good thermal insulation performance by using highly oriented long-fiber graphite thermal insulation felt. The fibers in the thermal insulation felt are mainly oriented parallel to the axis of the crucible. The thermal insulation sleeve of crucible with this material and structure has good thermal insulation performance, and can better inhibit the generation of induced eddy current in the thermal insulation sleeve than traditional thermal insulation sleeve during induction heating of the crucible.

The great power IF power source includes two, one positive and one negative, independent constant-current sources comprising triphase half-wave rectifier. In the case the parallel furnace load LC circuit is equivalent to an impedance R, each of the circuit comprising C1, SCR7, L1 and R and the circuit comprising C2, SCR8, L1 and R constitutes one parallel channel powered by the positive and the negative constant-current sources. Together with the altered conducting of SCR7 and SCR8, these two parallel channels complete the positive and the negative half-wave IF current resonance separately. The current resonance of C1L1 or C2L1 can turn off SCR7 or SCR8 naturally to avoid inversion turning and result in reliable starting of oscillation. The resonance capacitors C1 and C2 are powered separately by independent positive and negative constant-current sources without voltage accumulation and overvoltage.

The invention discloses an induction heating system which is provided with external combined induction heating coil phased arrays and used for an injection molding process and an application for the induction heating system, and belongs to the field of methods for manufacturing injection molding products. According to the technical scheme, a singlechip, a relay, inverters, coils and a keyboard are provided, wherein a program for controlling each heating mode states is pre-set in the singlechip; and switching among the heating mode states is realized by the keyboard; induction coils is powered on or powered off according to the preset program sequence or other ways, so that mutual influence of magnetic fields among the coils is eliminated, and the heating efficiency is improved; and meanwhile, the coils also can be separately or synchronously powered on or powered off according to the specific sequence, so that local temperature of a mould cavity can be controlled, and the heating flexibility is increased; and therefore, the system is particularly suitable for performing injection molding on parts which are made of thermoplastic or thermosetting composite materials or heating complicated mould cavities of injection moulds and locally heating the mould cavities of the injection moulds during compression molding production.

The invention discloses equipment for simultaneously heating pier heads at two end parts of a torsion bar. The equipment comprises a pedestal; an operation groove is arranged at the upper end of the pedestal; the upper end of the pedestal is provided with two device chambers; the two device chambers are separately positioned at the two sides of the operation groove; two worm rods are arranged at the upper end of the pedestal in a penetrating manner; one end of each worm rod is rotationally connected to the inner wall of the corresponding device chamber; one end, far away from the inner wall ofthe corresponding device chamber, of each worm rod is provided with a rotating wheel; the inner wall of each device chamber is rotationally connected with a worm gear; each worm gear is meshed with the corresponding worm rod; the opposite inner walls of the operation groove are each provided with a first circular chamber; and each first circular chamber communicates with the corresponding devicechamber. The equipment disclosed by the invention is reasonable in structural design, simple to operate, low in energy consumption by simultaneously heating the two ends of the torsion bar by using induction coils, high in induction heating efficiency and capable of saving time and efforts and greatly improving the production efficiency; the two ends are heated simultaneously, so the two ends areconsistent in temperature, the machining quality is guaranteed, and the equipment can be used for heating different specifications of torsion bars.

The invention relates to a contamination-free and high-efficient device for thinning titanium aluminum alloy, particularly to a device for thinning the titanium aluminum alloy. The invention aims to solve the problems that the conventional ultrasonic wave equipment cannot be used in the casting process of the titanium aluminum alloy, the reaction between the titanium aluminum melt and the molded case is serious when ultrasonic vibration is conducted, and the ultrasonography equipment cannot be used for treating the titanium aluminum alloy melt in the electromagnetic induction casting. The device comprises a tank body, a vacuum pump, an ultrasonic generator, ultrasonic wave oscillation equipment and titanium aluminum alloy melt smelting equipment, wherein the ultrasonic wave oscillation equipment comprises an upper feed transmission device, a connecting rod, an insulation washer, an energy converter, a fixing rack, an aluminum alloy amplitude transformer and a T8 steel tool head, and the titanium aluminum alloy melt smelting equipment comprises coils, an adamantine spar pipe, a mullite fibre layer, a molded case, a bar stock layer, a graphite felt and a lower fixing rod. The device can be used in the field of titanium aluminum alloy thinning with the characteristics of contamination-free and high-efficient.

The invention discloses a torsion bar pier head heating device which comprises a power cabinet, a rack and a pair of coil induction heating mechanisms used for heating the ends of a torsion bar. The coil induction heating mechanisms are arranged on the rack. The power cabinet and the coil induction heating mechanisms are connected through cables. The rack is provided with a pair of supports. The coil induction heating mechanisms are arranged on the supports respectively. One support is fixed to the rack, and the other support is movably arranged on the rack. The two ends of the torsion bar are heated through induction coils at the same time, and therefore energy consumption is low; the induction heating efficiency is high, time and labor are saved, and the production efficiency is greatly improved; the two heads are heated at the same time, the temperature of the two ends is consistent, and the machining quality is ensured; torsion bars of different specifications can be heated.

The invention discloses synchronous heating equipment of pier heads at two end parts of a torsion bar. The equipment comprises a power supply cabinet, a rack, and a pair of coil inductive heating mechanisms for heating the end parts of the torsion bar; the pair of coil inductive heating mechanisms is arranged on the rack; the power supply cabin is connected with the coil inductive heating mechanisms through cables; a pair of brackets is arranged on the rack; the pair of coil inductive heating mechanisms is respectively arranged on the pair of brackets; one bracket is fixed on the rack, and the other bracket is movably arranged on the rack; the coil inductive heating mechanisms include inductive coils and bobbins; and the inductive coils are wound on the bobbins. The two ends of the torsion bar are synchronously heated through the inductive coils, so that the energy consumption is low, the inductive heating efficiency is high, both time and labors are saved, and the production efficiency is greatly improved; the two ends are synchronously heated, and are the same in temperature, so that the processing quality is guaranteed; and the torsion bars with different specifications can be heated.

The invention discloses a biomass particle drying device in electromagnetic induction heating and a drying method of the biomass particle drying device. A biomass particle inlet, a biomass particle outlet, a conveying portion and a drying heating portion are included; the conveying portion comprises a variable frequency speed controlling motor and an Archimedes screw; and the drying heating portion comprises an electromagnetic coil, heat preserving cotton, heating pipes, a steam discharging port, an induced draught fan, a humidity sensor and an electromagnetic controller. According to the biomass particle drying device in electromagnetic induction heating, the electric energy is converted into heat energy to heat materials through the electromagnetic induction heating principle, the rotating speed of the variable frequency speed controlling motor is adjusted through the humidity sensor, and then the staying time of biomass particles in the heating pipes is controlled; and the electromagnetic controller is adjusted through the humidity sensor, and then the temperature of the various heating pipes is changed. The biomass particle drying device in electromagnetic induction heating issimple in structure, convenient to operate, high in drying efficiency, capable of accurately controlling the heating temperature, safe and reliable in heating manner, efficient, capable of saving energy, and clean and environment-friendly.