CNC plasma cutting machine combines CNC cutting machine with plasma power source. It is easy to produce breakage by plasma cutting. There are many reasons for breaking. Generally, the optimal cutting speed range of plasma CNC cutting machine can be selected or used according to equipment description. The test is to determine, but due to the thickness of the workpiece to be cut, the material is different, the melting point is high, the thermal conductivity and the surface tension after melting, etc., the cutting speed of the plasma numerical control cutting machine also has a corresponding change. Its main performance is as follows:
1. The plasma numerical control cutting machine can improve the quality of the incision when the cutting speed is moderately improved, that is, the slit is slightly narrowed, the surface of the incision is flatter, and the deformation can be reduced.
2. The plasma numerical control cutting machine makes the cutting line energy lower than the required amount when the cutting speed is too fast, and the jet in the slit cannot quickly blow off the melted cutting melt to form a large rear drag, accompanied by The incision is slag and the surface quality of the incision is reduced.
3. When the cutting speed of the plasma numerical control cutting machine is too low, since the cutting point is the anode of the plasma arc, in order to maintain the stability of the arc itself, the anode spot or the anode area must find a conduction current near the slit near the arc. At the same time, more heat is transferred to the radial direction of the jet, so that the slit is widened, and the molten material on both sides of the slit gathers and solidifies at the bottom edge, forming a hanging slag which is difficult to clean, and the upper edge of the slit is formed by excessive heating and melting. Rounded corners.
4. When the plasma CNC cutting machine has a very low cutting speed, the arc will even be extinguished because the slit is too wide. It can be seen that good cutting quality and cutting speed are inseparable.
Post time: Sep-02-2019
