Cutting speed is also very important to the machining quality of CNC plasma cutting machine. Cutting speed: the best cutting speed range can be selected according to the equipment description or determined by test. Due to the thickness of materials, different materials, high and low melting point, thermal conductivity and surface tension after melting (definition: the change process of substances from solid to liquid) (explanation: mutual traction force of objects under tension), the cutting speed also changes accordingly. Main performance:

1. Moderately increasing the cutting speed can improve the quality of the incision, that is, the incision is slightly narrower, the surface of the incision is smoother, and the deformation can be reduced at the same time. Compared with the traditional plasma cutting machine, it has the characteristics of high efficiency, high precision and high stability. It is suitable for mass production and processing of precision and complex products. When you first hear the name of plasma cutting machine, you must think it is very magical. The following professional manufacturers will take us to see what kind of equipment it is. The oxygen tube is red and can only be used for oxygen, not other gases; Acetylene pipe is black. It is forbidden to change two kinds of rubber pipes.

2. The cutting speed is too fast, which makes the cutting linear energy lower than the required value. The jet in the cutting seam can not quickly blow off the molten cutting melt (melt) immediately, resulting in a large amount of drag. With the slag hanging on the notch, the surface quality of the notch is degraded.

3. When the cutting speed is too low, because the cutting position of the NC plasma cutting machine is the anode of the plasma arc, in order to maintain the stability of the arc itself (explanation: stable and stable; no change), the anode spot or anode area must find the place of conduction current near the slit closest to the arc, and more heat will be transmitted to the radial direction of the jet, so the notch will be widened, The molten materials on both sides of the notch gather and solidify at the bottom edge to form slag hanging that is not easy to clean, and the upper edge of the notch forms rounded corners due to excessive heating and melting.

4. When the speed is very low, the arc will even go out because the notch is too wide. Cutting mode of NC plasma cutting machine - select the appropriate cutting mode according to the cutting materials. It can be seen that good cutting quality is inseparable from cutting speed.