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The PCB power supply uses high-quality imported IGBTs as the main power devices, and ultra-microcrystalline (also known as nanocrystalline) soft magnetic alloy materials as the main transformer core. The main control system adopts multi-loop control technology, and the structure adopts anti-salt spray acidification. measure. The power supply product has a reasonable structure and strong reliability. The power supply has become an updated product of the thyristor power supply due to its small size, light weight, high efficiency, and high reliability.
1. Reduce the porosity, the formation speed of crystal nucleus is faster than the growth rate, which promotes the refinement of crystal nucleus.
2. Improve the bonding force and make the passivation film break down, which is conducive to the firm bond between the substrate and the coating.
3. Improve the coverage and dispersion ability. The high negative potential of the cathode allows the passivated parts of ordinary electroplating to be deposited, and slows down the "scorching" and "dendritic" of the protruding parts of the complicated parts due to excessive consumption of deposited ions. The deposited defects can be reduced to 1/3~1/2 of the original thickness to obtain a given characteristic of the coating (such as color, no porosity, etc.), saving raw materials.
4. Reduce the internal stress of the coating, improve lattice defects, impurities, voids, tumors, etc., easily obtain crack-free coatings, and reduce additives.
5. It is beneficial to obtain alloy coating with stable composition.
6. Improve the dissolution of the anode without the need for anode activator.
7. Improve the mechanical and physical properties of the coating, such as increasing the density, reducing the surface resistance and volume resistance, improving toughness, wear resistance, and corrosion resistance, and controlling the hardness of the coating.
Traditional electroplating has no effect on suppressing side effects, improving current distribution, adjusting liquid phase mass transfer process, and controlling crystal orientation. The research on complexing agents and additives has become the main direction of electroplating process research. Nano switching power supply solves the shortcomings of traditional rectifiers.
8. Improve product yield and product quality.
