PEO Power Supply Equipment

Single / bipolar output full bridge inverter DC pulse power supply

Fourth generation micro arc oxidation power supply equipment

At present, the main obstacle restricting the application of micro arc oxidation technology and the problem of high energy consumption of the process have been solved by Dongguan micro arc environmental protection technology and its associated scientific research institutions. That is the fourth generation bipolar power output technology based on full bridge inverter. This problem is particularly prominent in the preparation of films with high surface hardness. Most of the time of micro arc oxidation process is micro arc discharge stage. For example, the micro arc discharge voltage of aluminum alloy is usually between 380V and 550V, the current density is between 2A / DM 2 and 10A / DM 2, and the treatment time of hard film is usually more than 90min. The long-time high-voltage discharge process makes the energy consumption of micro arc oxidation high and its cost high, At present, our technology can reduce the unit electricity cost to less than 0.5 yuan / square decimeter.

Main features:

The advanced switching power supply technology has the advantages of small volume, high efficiency, stable operation, low noise and small interference to the power grid. It has manual, single chip microcomputer control and touch screen control mode. The power supply is remotely controlled through RS485 port. Multiple process curves can be set to ensure the stability of product quality. The power frequency, positive and negative voltage amplitude and pulse width can be adjusted independently and continuously, with a wide adjustable range.

Output mode of power supply: constant voltage and constant current. Multiple practical protection measures are designed to ensure the stable operation of the power supply.

1dsp digital control / high precision / good repeatability, equipped with control panel and control program.

2. It has overcurrent, overheating, overvoltage and short circuit protection.

3. Control mode: constant voltage, constant current and constant power

4. Cooling mode: air cooling; Air cooling + water cooling

5 reserve PLC remote control interface (remote control function) according to user requirements

The main parameters of micro arc oxidation power supply are:

1. Positive pulse voltage 50-750v, negative pulse 20-200v;

2. The positive and negative power supplies have independent current stabilizing output, and the current stabilizing accuracy is 1%;

3. The control modes of power supply are: constant voltage and constant current;

4. The output pulse frequency is continuously adjustable from 30Hz to 3kHz;

5. The positive and negative pulse ratio is 1:1-15:1 continuously adjustable, and the positive and negative pulse duty ratio is 5% - 85% continuously adjustable;

6. The power control system adopts touch screen + PLC control, with manual control, local control and remote communication control functions;

7. It has the function of process storage and connecting external output;

8. Models: 30a, 70A, 150A, 300A, etc. The model is added according to the average current of positive and negative outputs, where the positive current divided by 2-5A represents the processing quantity of each batch.