High Frequency 500A 400V Electrophoretic Rectifier

The Electrophoretic Rectifier and Plating Rectifier Equipment series are extensively utilized for a wide range of surface treatment applications, delivering precision, efficiency, and reliability. These rectifiers are particularly well-suited for processes such as PCB electroplating, hard chrome coating, and plating with metals like copper, nickel, zinc, gold, and silver. The Rectifier ensures consistent and high-quality results in these applications by providing stable voltage and current control, which is essential for achieving uniform coating thickness and enhanced surface properties.

The Electrophoretic Rectifier and Plating Rectifier Equipment series are extensively utilized for a wide range of surface treatment applications, delivering precision, efficiency, and reliability. These rectifiers are particularly well-suited for processes such as PCB electroplating, hard chrome coating, and plating with metals like copper, nickel, zinc, gold, and silver. The Rectifier ensures consistent and high-quality results in these applications by providing stable voltage and current control, which is essential for achieving uniform coating thickness and enhanced surface properties.

1)Field application diagram：

2)Industry application examples:

Select thyristors with low on-state threshold voltage: thereby reducing power consumption and improving rectification efficiency. Analysis of rectifier cabinet losses reveals that thyristor losses constitute a significant proportion of the total cabinet losses, with the on-state threshold voltage exerting a notable impact on device losses. It is recommended to select thyristor models with a low on-state threshold voltage and stable, reliable performance.Regarding the parallel design of rectifier bridge arms, inherent variations in thyristor characteristics result in discrepancies in the on-state threshold voltages of individual components. This leads to uneven current distribution among parallel branches. To mitigate this, the number of parallel components should be minimized while ensuring current-carrying requirements are met.

The more parallel elements, the greater the conductive imbalance. Therefore, try to select thyristors with large forward average current, reduce the number of parallel elements in the rectifier bridge arm, and improve the current sharing coefficient of the rectifier bridge arm.
Use current-sharing reactors for forced current sharing: Between the two thyristors in the same bridge arm, a low-power current-sharing reactor developed by our company is added for forced current sharing. The current-sharing coefficient is as high as 0.96 or above (when the current-sharing reactor is not used, the current-sharing coefficient is 0.85~0.88), which improves the rectification efficiency.

Non-ferrous metal electrolysis, such as copper, zinc and aluminum electrolytic.

The electrophoretic rectifier serves as the operational backbone of modern surface treatment systems, delivering voltage regulation within ±0.5% tolerance and current stability below 1% ripple. This precision enables uniform metal deposition critical for functional coatings – automotive electroplating achieves 8-12μm chromium layers with 1,200 HV hardness, while PCB copper plating maintains ±0.8μm thickness consistency across 24-hour production cycles.

Air Cooling:Heat dissipation fan + air duct + comb heat sin

Water Cooling：Built-in water circulation line