When you operate the plasma cutting machine, you must understand the following safety operation procedures:

1. Check and confirm that the power supply, gas source and water source are free of electric leakage, air leakage and water leakage, and the grounding or zero connection is safe and reliable.

2. The trolley and workpiece shall be placed in the proper position and connected to the positive pole of the cutting circuit. There shall be a slag pit under the cutting working face.

3. The nozzle aperture shall be selected according to the material, type and thickness of the workpiece, and the cutting power supply, gas flow and electrode internal shrinkage shall be adjusted.

4. The automatic cutting trolley should be rotated far through the empty car and the cutting speed should be selected.

5. Operators must wear protective masks, welding gloves, hats, filter dust masks and acoustic earmuffs. Personnel without protective glasses are forbidden to observe the plasma arc directly, and the exposed skin is forbidden to approach the plasma arc.

6. When cutting, the operator shall stand at the windward position. The air can be drawn from the lower part of the workbench, and the open area on the workbench should be reduced.

7. During cutting, when the no-load voltage is too high, check the electrical grounding, zero connection and the insulation of the cutting torch handle. The workbench should be insulated from the ground, or install the no-load circuit breaker in the electrical control system.

8. The high-frequency generator shall be equipped with shielding shield. After using high-frequency arc striking, the high-frequency circuit shall be cut off immediately.

9. The use of thorium and tungsten electrodes shall comply with Article 12.7.8 of JGJ33-2001.

10. Cutting operation and cooperation personnel must wear labor protection articles as required. Safety measures must be taken to prevent electric shock, falling from height, gas poisoning, fire and other accidents.

11. Electric welding machines used on site shall be equipped with rain-proof, moisture-proof and sun-proof machine sheds, and shall be equipped with corresponding fire-fighting equipment.

12. When welding or cutting at high altitude, the safety belt must be fastened, fire prevention measures should be taken around and below the welding and cutting, and special personnel should be assigned to monitor.

13. When it is necessary to weld pressure vessels, sealed vessels, oil drums, pipelines, and workpieces stained with combustible gases and solutions, the pressure in the vessels and pipelines shall be removed first, the combustible gases and solutions shall be eliminated, and then the toxic, harmful and flammable substances shall be washed; For containers containing residual grease, first wash them with steam and alkaline water, open the lid, and then fill them with clean water before welding. Measures to prevent electric shock, poisoning and suffocation shall be taken for welding and cutting in the container. Air holes shall be reserved for welding and cutting sealed containers, and equipment ventilation equipment shall be installed at the inlet and outlet if necessary; The lighting voltage in the container shall not exceed 12V, and the welder and weldment shall be insulated; A special person shall be assigned outside the container for supervision. It is forbidden to weld in containers that have been painted and plastic.

14. It is strictly forbidden to weld and cut pressure vessels and pipelines under pressure, live equipment, stress parts of bearing structures and containers containing flammable and explosive materials.

15. Electric welding in the open air is not allowed in rainy days. When working in wet areas, the operator should stand at the place with insulating materials and wear insulating shoes.

16. After the operation, cut off the power supply and turn off the gas source and water source.