Intermediate frequency furnace electromagnetic protection

by:Hengyang Furnace     2020-10-12
Intermediate frequency furnace electromagnetic protection technology encyclopedia who know intermediate frequency furnace when feeding overvoltage protection is how to return a responsibility? A: overpressure main reason: A artifacts and coil or lighter sparking coil and oxide skin repair: adjust the clearance between the workpiece and the coil, induction coil cleaning scale B part, capacitance, each connection copper platoon screw loose assemblage overhaul of main loop: fastening screw has A thyristor inverter (C Two) Damaged inverter SCR a ( Two) Viewed from the header. Intermediate frequency electric furnace what harm the person answer: mainly electromagnetic radiation, and radiation are two different things, if protection is in place, no harm to human body. Prevention is mainly the electric shielding do, to avoid leakage. Intermediate frequency furnace can do? A: medium frequency furnace is a kind of will power frequency 50 hz alternating current into intermediate frequency ( More than 300 hz - 1000 hz) Induction coil, power supply units, deserve to go up and compensation capacitor, applied the principle of electromagnetic induction heating equipment, widely used in non-ferrous metal melting, heating. Such as molten pig iron practice, ordinary steel, stainless steel, tool steel, copper, aluminum, gold, silver and alloy, etc. ; Diathermy forging purposes. Failure 1 failure phenomenon: intermediate frequency furnace large dc current when starting, low voltage dc voltage and frequency and over-current protection device and start the deep voice. Analysis: there is a bridge inverter bridge arm of the thyristor may cause short circuit or open circuit inverter bridge running three arm bridge. Oscilloscope were observed four bridge inverter bridge thyristor (tube voltage waveform on the arm of the if there is a bridge. Heating principle of intermediate frequency furnace answer: medium frequency furnace is mainly composed of induction coil, induction coil, power supply, and made of refractory material in the crucible. Within the crucible containing metal furnace charge, equal to each winding transformer, induction coil, when on ac power, to produce alternating magnetic field in the induction coil, the magnetic force line in the crucible furnace charge, metal is produced in the furnace charge induction electromotive force, due to form a charge itself. What is the principle of intermediate frequency furnace steelmaking? A: medium frequency furnace is a kind of will power frequency 50 hz alternating current into intermediate frequency ( More than 300 hz - 10000 hz) And induction coil, power supply units, deserve to go up. Environmental protection requirements are necessary to intermediate frequency electric furnace answer: the harm of electric furnace in the steelmaking has three aspects: ( 1) Electromagnetic hazards, it includes: 1) Flashing. Power was shining directly show the voltage is not stable, a large electric furnace transformer At work, a flickering At/will impact associated with the grid voltage smooth, affect all users within the grid. In dc power supply case quantity is small, about. About the working principle of intermediate frequency furnace? A: intermediate frequency electric furnace medium frequency magnetic field was established based on intermediate frequency power supply, make the induced eddy current and heat is generated in ferromagnetic materials to achieve the purpose of heating materials. Intermediate frequency electric furnace adopts 200 - 2500 hz medium frequency induction heating power supply, heat insulation, intermediate frequency electric furnace is mainly used for smelting carbon steel, alloy steel, special steel, also can be used for copper, aluminum and other non-ferrous metal smelting and lift temperature equipment. The advantages and disadvantages of electromagnetic stirring of molten steel in induction furnace is what? Answer: the beneficial effect of electromagnetic stirring of molten steel smelting has the following several points. 1) Homogeneous liquid steel temperature at the top and bottom of molten steel in a large container crucible temperature difference is bigger, by electromagnetic stirring is the principal means of uniform temperature is reached. Large medium frequency furnace using dual-band power, one of the low frequency power supply used for mixing. 2) Uniform chemical composition of steel and alloy electromagnetic stirring for homogenization. How a magnetic field of intermediate frequency induction coil, furnace: it doesn't charge. Outside induction electromagnetic induction coil, but there is no form in the magnetic field near the metal loop. Assuming that connected by a wire, the wire will also become a part of the metal, without and metal formed in magnetic circuit, so near the metal will not charge. Intermediate frequency furnace electromagnetic protection technical information how to prevent the dangers of intermediate frequency furnace machinery manufacturing processing medium frequency furnace electromagnetic shielding a: what are the main machinery manufacturing industry, the occupational-disease-inductive factors? Mainly include: foundry industrial dust; High temperature and thermal radiation; Harmful gases, such as metal smelting and casting can produce carbon monoxide; As well as noise, vibration, etc. Forging workshop of high temperature and thermal radiation; Carbon monoxide, sulfur dioxide, harmful gas; As well as noise, vibration, etc. The heat treatment workshop. Intermediate frequency furnace are there any requirements for scrap steel? 吗? 吗? 吗? Intermediate frequency furnace electromagnetic shielding answer: ha ha medium frequency furnace is a bit like the induction cooker, POTS can be used. Intermediate frequency furnace is his fever to smelting steel with high frequency electromagnetic field. So high carbon steel, alloy steel, etc. , under the high frequency electromagnetic field is not very good fever, so can't. So, demand for steel, you can judge myself. Intermediate frequency furnace service life of the intermediate frequency furnace electromagnetic shielding a: in addition to the requirements of the physical and chemical indicators, burden coefficient of expansion as small as possible, in order to avoid the use of expansion of crack due to repeated temperature difference effect, affecting the service life of crucible. According to the equipment models, melting materials of ph and melting temperature control to determine.
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