1. According to arc starting mode, the plasma power source has two kinds of starting arc and non-contact (button) starting arc. The hand-held plasma power source is a contact arc starting mode; for the NC system, a non-contact arc starting mode should be selected. To determine which arcing mode the plasma power supply belongs to, simply look for the button on the equipped torch. Plasma power sources with currents greater than 100A are all non-contact arc starting methods. 2. The torch for the machine's plasma power supply is a straight gun, while the torch for a handheld plasma power supply is a curved handle gun. 3. The handheld plasma power supply has strong interference with the CNC system. When it is serious, it can cause the black screen of the CNC system. The influence of the machine plasma is very small, and there is almost no. The above distinguishes the characteristics and differences between the handheld plasma power supply and the machine plasma power supply. Let's explain the following points when selecting the plasma power supply for the machine: 1. Select the plasma power supply current according to the thickness of the sheet to be cut. 2. According to the quality requirements of the cutting section, select the type and manufacturer of the plasma power supply. Plasma cutting, due to the large top of the melting hole, the following small, the incision section always has a certain degree of inclination, it is impossible to be as vertical as the flame cutting, this is a worldwide problem. Ordinary plasma, slope of 15 degrees. Plasma power supply, according to the cutting section verticality, cutting accuracy, ordinary plasma, fine plasma, laser plasma. At the same time, their prices are also very different. 3, plasma power inverter and SCR-type, the former light weight. 4, plasma power supply, can be used for manual cutting, can also be used with CNC cutting machine supporting. In order to realize its cutting torch on the CNC cutting machine, it should be equipped with a straight shank cutting torch for the purchase. 5. The length of the plasma cable must take into account the distance between the torch and the plasma power supply within the full width range of the cutting process. However, the long cable will reduce its perforation and cutting ability. 6, considering the temporary load rate, the general domestic power supply is about 80%, and the imported ones can reach 90% or even close to 100%. (The duty ratio, also called the duty cycle, refers to the rate at which this equipment can be fully loaded with working hours).
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