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Positive pulse and positive & negative pulse reverse two kinds of rectifiers are used in the electrochemical industry.
PP and PPR Technologies are successfully applied for gold, silver, copper, nickel, zinc or chrome plating to gain a more regular layer composition requiring less material or improving the coating performance.
Typical processes for which pulse rectifiers are used:
– Printed Circuit Board Applications
– General Metal Finishing Applications
– Electro- Chemical Machining
Take pulsating waveform aluminum anodizing power supply as an example, it achieves better quality oxidation surface:
The oxide quality is better if anodizing is carried out by using a pulse rectifier, with the average current of which is equal to the one of a conventional rectifier. This advantage is proved by several tests and can also theoretically be explained.
Time-saving:
Experience shows that by using a pulsating waveform it is possible to carry out anodizing (and also other electrodeposition treatments) at a higher average current in comparison with conventional direct current. This may well be due to the cooling of the oxide layer in the interval between two consecutive pulses, following the known “recovery” theory. Therefore by using pulse rectifiers it is possible to get the same thickness in a shorter time, with the benefits of 20-25% approx. time-saving.
| Input Voltage | input 3 phases 380V+/-10%，or can be customized |
|---|---|
| Output Voltage | 0-rated voltage continuously adjustable, voltage range 5-1000V can be customized |
| Output Current | 0-rated current continuously adjustable, current range 10-100000A can be customized |
| Cooling Method | air cooling, water cooled |
| Power Factor | >92% |
| Power Efficiency | >90% |
| Ripple factor | <5%, can be filtered to less than 1% as requested |
| Precision | within 1% |
| Running Status | 24 hours un-interrupted running |
| Ambient Temperature | -10~40°C |
Features:
1.The performance of this machine is much higher than world advanced Italia CISART or TECNO which can reach 3Hz frequency only.
2. Ripple filtering technology and devices would be implemented with ripple factor within 1%.
3. Front and rear edges of the pulse are vertical 90 degrees, which is ideal for the electrochemical process.
4.Pulse overlapping electrical level height is adjustable.
5.Phase loss, load short circuit, and overheat, over-current, over-voltage, etc. protections
6.Voltage limiting function when working under stable voltage.
7.Time of pulse soft start ranging from 1 minute to 32 minutes is adjustable, especially suitable for aluminum oxidation.
8. Parameters can be modified and stored at any time during operation, power failure status can save for 20 years.
Pulse rectifier for individual pulse process time >100ms Or <100ms can be customized according to your demands.
Most reliable, 7-15 days lead time, power supplies provider!
We will contact you within 1 working day, please pay attention to the email with the suffix “@amvopower.com”.
