how to improve plasma cutter cutting quality through different cutting speed

1. When the cutting speed of plasma cutter is raised moderately, the cutting quality can be improved, that is, the cutting edge is narrowed slightly, the cutting surface is smoother, and the deformation can be reduced.

2. When the cutting speed is too fast, the cutting line energy of plasma cutter is lower than the required value. The jet in the cutting slot can not quickly melt away the cutting melt (defined as the process of changing the material from solid to liquid) (defined as the process of changing the material from solid to liquid) and form a large rear drag. The quality of the cut surface decreases with the slag hanging.

3. When the cutting speed of the plasma cutter is too low, because the cutting place is the anode of the plasma arc, in order to maintain the stability of the arc itself (explanation: stable stability; no change), the anode spot or anode area must find the place of conduction current (Electron flow) near the cut of the arc. At the same time, more heat is transmitted radially to the jet, thus widening the incision, solidifying the material melted on both sides of the incision at the bottom edge, forming a residue that is difficult to clean up, and melting the upper edge of the incision by heating (definition: the change of material from solid to liquid). Process too much and form fillet.

4, when the plasma cutter is very low cutting speed, because the incision is too wide, the arc will even die out. CNC plasma cutter can cut all metal plates, so it has the advantages of wide cutting field, cutting speed can reach 10 m / min, high speed, high efficiency, is 10 times the flame cutting. It can be seen that good cutting quality is inseparable from cutting speed.