Products
Industries
Copper electropolishing is a precision process that uses anodic dissolution to preferentially dissolve the microscopic protrusions on the copper surface, thereby achieving a mirror-like finish. Unlike mechanical polishing, electropolishing falls under the category of electrochemical machining, which means:
However, this precision process is extremely sensitive to power supply quality. The purity of the DC waveform output from the rectifier often becomes the key factor determining success or failure.
| Ripple coefficient | Typical manifestations | Mechanism analysis |
|---|---|---|
| <3% | Mirror finish, Ra<0.1μm | Uniform anodic dissolution and stable passivation film |
| 3-8% | Slightly hazy, with reduced brightness | Voltage fluctuations cause unstable dissolution rates |
| >8% | Obvious streaks and pitting, Ra>0.5μm | Periodic overdissolution and repassivation occur alternately |
| Technology type | Ripple coefficient | Applicable Scenarios | cost |
|---|---|---|---|
| Traditional silicon rectifier | 10-25% | Coarse plating, electrolytic smelting | Low |
| SCR | 5-15% | General electroplating | middle |
| High-frequency switching power supply | <1-3% | Precision electropolishing | Medium and high |
| linear power supply | <0.1% | Laboratory-level precision control | high |
When selecting a rectifier for copper electropolishing, consider the following:
In the field of copper electropolishing, "power supply determines the lower limit, and process determines the upper limit." Rectifier ripple, as a fundamental power supply quality indicator, affects the entire production process. For modern electroplating companies that pursue high quality, high efficiency, and low cost, investing in a high-frequency switching power supply rectifier with a ripple factor of less than 2% will recover costs in the short term through improved quality and reduced energy consumption, and in the long term, it will form the technological foundation of core competitiveness.
We specialize in providing high-performance switching power supply rectifiers with a ripple factor of <1% for the electropolishing industry, supporting: digital control and real-time waveform monitoring; multi-mode switching (voltage regulation/current regulation/constant power); remote monitoring and data logging; and customized design (pulse output, multi-segment programming, etc.). Contact our technical team now to obtain rectifier selection solutions for your copper electropolishing production line.
