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For not crystal core is widely used in the domestic high power welding machine

by:Transmart     2020-05-30
Nanocrystalline technology: to move crystal core has been widely used in domestic high-power welding machine at present, the domestic high power welding machine adopts the proportion of amorphous iron core is very big, and most abroad also USES the ferrite core. Use up to 20 KHZ inverter frequency, amorphous iron core, it should be said more than ferrite material cost advantages, but due to the nature of the material, the amorphous iron core can only supply in annular way, not to facilitate automatic winding coil. Most foreign enterprises using ferrite core and not willing to switch to amorphous iron core, and domestic enterprises out of consideration for the cost of materials, widely used amorphous iron core. Foreign soft switching power supply technology in inverter welding machine is not very common, especially 20 KHZ inverter welding machine most still is given priority to with hard switching, but the capacity of the switching device used redundant a lot larger than domestic welding machine, thus ensuring the high reliability of inverter power supply. Decided by the human cost of this is due to the different, because the soft switching circuit electromagnetic component manufacturing and assembly of the additional costs, amorphous iron core in the place where the human cost is higher capacity of the material cost will increase more than switch device. Amorphous iron core in the soft switching power supply technology abroad is mainly aimed at work in the 60 ~ 120 KHZ high-power high-frequency welding machine, mainly in order to improve the response speed of the power supply, facilitate more accurate waveform control process.
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