Tel: 18037961302
Sales hot line ( 24 hours  service): 18037961302



Adress: Luoxin Industrial Park, Luoyang, Henan
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  • Medium Frequency Furnace

    One Belt Two Intermediate Freq

    series intermediate frequency

    Steel Shell Intermediate Frequ

    3T Parallel Intermediate Frequ

    Aluminum Shell Medium Frequenc

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    Round steel medium frequency f

    Surface quenching and single t

    Drill pipe medium frequency co

    Medium frequency forging furna

    25 80 round steel induction

    70100 round steel induction

    KGPS300KW/1.5 round steel medi

    50 100 round steel heating f

    Metal casting furnace

    Copper casting furnace

    Gold melting furnace

    Silver melting furnace

    50kg metal powder atomization

    50KG medium frequency copper m

    800 KG electromagnetic copper

    Medium frequency copper meltin

    Scrap copper melting furnace

    300kg copper melting furnace

    Medium frequency aluminum melt

    Electromagnetic induction alum

    250kg medium frequency inducti

    Industrial electric furnace technical information

    In the maintenance of the intermediate frequency melting furnace, the fault of the DC smoothing reactor is a fault that is difficult to judge and handle. The faults that occur in DC smoothing reactors are:

         (1) The user randomly adjusts the air gap of the reactor and the number of turns of the coil, changes the inductance of the reactor, affects the filtering function of the reactor, and causes the DC current of the output to be intermittent, resulting in unstable operation of the inverter bridge. The inverter failed to burn the inverter thyristor. Arbitrarily adjust the air gap of the reactor and the number of turns of the coil. When the inverter bridge is short-circuited, it will reduce the ability of the reactor to block the current rise and burn the thyristor. Changing the inductance of the reactor at will also affect the starting performance of the intermediate frequency melting furnace;


        (2) The reactor coil is loose. If the coil of the reactor is loose, the electromagnetic force causes the coil to shake during the operation of the intermediate frequency melting furnace, and the inductance is abrupt, which may cause the inverter to fail during light load starting and low current operation;


        (3) The coil of the coil is not well insulated. Short circuit to ground or short circuit between turns, sparking discharge causes the inductance of the reactor to jump and strong electromagnetic interference, making the intermediate frequency melting furnace work unstable. The abnormal sound is generated frequently, and the thyristor is burned by the overcurrent, which causes the insulation of the coil insulation layer to be poor. The short circuit causes are:


        a. The cooling is not good, and the temperature is too high, resulting in poor insulation of the insulation layer;


        b. The reactor coil is loose, between the coil insulation layer and the coil insulation layer, between the coil insulation layer and the iron core, and the relative movement friction causes the insulation layer to be damaged;


        c. When processing the scale of the reactor coil, the acid solution is infiltrated into the coil, and the acid solution corrodes the copper tube and forms a copper salt to destroy the insulating layer.

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    Tel:18037961302 Sales hot line ( 24 hours service): 18037961302
    Adress: Luoxin Industrial Park, Luoyang, Henan