Normal maintenance of plasma cutting machine torch:
1. Correctly assemble the cutting torch: Install the cutting torch correctly and carefully, ensuring that all parts are well matched, and ensuring that gas and cooling airflow are unobstructed. Install by placing all components on a clean cloth to prevent dirt from sticking to the parts. Add appropriate lubricating oil to the O-ring, based on the brightness of the O-ring, and do not add too much.
2. Consumables should be replaced in a timely manner before complete damage: Consumables should not be replaced after complete damage, as severely worn electrodes, nozzles, and vortex rings will generate uncontrollable plasma arcs, which can easily cause serious damage to the cutting torch. So when the cutting quality is first found to have decreased, consumables should be checked in a timely manner.
3. Cleaning the connecting threads of the cutting torch: When replacing consumables or conducting daily maintenance inspections, it is important to ensure that the internal and external threads of the cutting torch are clean. If necessary, the connecting threads should be cleaned or repaired.
4. Cleaning the contact surface between the electrode and the nozzle: In many cutting torches, the contact surface between the nozzle and the electrode is a charged contact surface. If these contact surfaces have dirt, the cutting torch cannot function properly and should be cleaned with hydrogen peroxide based cleaning agents.
5. Check the gas and cooling gas every day: Check the flow and pressure of the gas and cooling gas flow every day. If insufficient flow or leakage is found, stop the machine immediately and queue up for faults.
6. To avoid damage caused by collisions with cutting torches: In order to prevent damage caused by collisions with cutting torches, it is necessary to program the system correctly to avoid excessive movement. Installing collision avoidance devices can effectively prevent damage to the cutting torch during collisions.
7. The most common cause of torch damage:
(1) Torch collision.
(2) Destructive plasma arc caused by damage to consumables.
(3) Destructive plasma arc caused by dirt.
(4) Destructive plasma arc caused by loose components.
8. Attention:
(1) Do not apply grease on the cutting torch.
(2) Do not overuse lubricant for O-rings.
(3) Do not spray splash proof chemicals while the protective cover is still on the cutting torch.
(4) Do not use a manual cutting torch as a hammer.