The die-casting hydraulic press industry has been developing for a long time, and the problems it faces are relatively clear, which can be roughly divided into several types: the synchronous motor has a good control effect on the system, but the system is complex and expensive. The asynchronous motor has certain price advantages, but the system control is difficult, the overshoot control is difficult, and the pressure build-up time and pressure relief time are long. At the same time, the die-casting hydraulic press has a large startup noise, high energy consumption and high temperature, and requires an efficient oil cooling system, which also has high requirements for the use environment and maintenance costs.
Program components
Advantages
- Basically no overshoot
The asynchronous servo drive also reduces the pressure overshoot by an astonishing 70% through a full closed-loop control strategy;
- Short pressure build-up and pressure relief time
We have also achieved rapid pressure build-up, shortening the pressure build-up time from low pressure to high pressure to a maximum of less than 130 milliseconds, and by optimizing the pressure relief solenoid valve, the pressure relief time has been greatly compressed, significantly improving the die-casting efficiency;
- High energy saving and low temperature rise
At the same time, in response to energy efficiency and temperature rise issues, the system's energy saving efficiency and temperature rise control have been targeted to improve, extending the life of the equipment and reducing resource consumption;
- High product qualification rate
In the pressure stabilization process after pressure build-up, we achieved stable pressure stabilization, high-precision pressure control, and almost eliminated the generation of bubbles, thereby greatly improving the product qualification rate;
- Good mold opening and closing stability
In addition, our asynchronous servo drive maintains stable frequency and has excellent stroke stability
- Low noise
Extremely low noise level