Maintenance of the plasma cutting machine: choose the flushing and pumping methods according to the processing requirements, set the working fluid pressure reasonably, and strictly control the working fluid height. Pay attention to check the filter element of the working fluid system filter of the plasma cutting machine. If it is blocked, replace it in time to ensure that the working fluid can automatically maintain a certain degree of cleanliness, and replace it regularly according to the service life of the working fluid. Check whether the lubricating oil is sufficient and whether the pipeline is blocked. For the working fluid of flammable type, pay attention to fire prevention during use. Regularly wipe the appearance of the machine, such as the operation panel; system display. Regularly check whether there is dust in the electrical cabinet and the inlet and outlet lines of the electrical cabinet, and wipe it if there is. Regularly check whether there is floating dust in the strong electric panel, servo unit, and spindle unit in the electrical cabinet, and remove it with a brush or a vacuum cleaner when the power is turned off. Regularly check to see if the spindle fan rotates and whether there is any debris, and remove it so as not to affect the spindle operation. Regularly check and check whether the relay on the high-voltage board is functioning normally, whether the discharge capacitor and discharge resistance are normal, and replace if necessary.
Precautions for the use of the plasma cutting machine: When the machine operator uses the machine, he must read the operating instructions of the machine and understand the contents before operating the machine. Before you are familiar with the operation of the machine, do not act at will to avoid safety accidents. The clamping and calibration of the tool electrode must ensure that the tool electrode feeding and machining direction is perpendicular to the table plane. Before processing, pay attention to check the discharge gap, that is, it is necessary to maintain a certain distance between the tools connected to different polarities and the workpiece to form a discharge gap, generally about 0.01 ~ 0.1mm. There must be enough pulse discharge energy to ensure that the voltage pulse waveform output by the pulse power supply added to the workpiece in the liquid medium and the tool electrode is unidirectional to ensure that the metal at the discharge part is melted or vaporized. The discharge must have a certain insulation. performance in a liquid medium. To achieve civilized production, after the processing operation is completed, the workplace must be cleaned, the machine must be wiped clean, and the power supply of the system must be cut off before leaving.