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First, before use and when cutting 1. Should check and confirm the power, air, water source NO leakage, leakage, leakage, grounding or access to zero safe and reliable.
2. The trolley and workpiece should be placed in proper position, and the workpiece and the cutting circuit positive should be connected. The slag pit should be provided under the cutting surface.
3. The nozzle aperture should be selected according to the workpiece material, type and thickness, and the cutting power supply, gas flow, and the inner shrinkage of the electrode should be adjusted.
4. The automatic cutting trolley should be run by empty cars and the cutting speed should be selected.
5. Operators must wear protective masks, welding gloves, caps, dust masks, and acoustic ear caps. Persons who do not wear protective glasses are strictly prohibited from directly observing the plasma arc. Exposed skin is strictly prohibited from approaching the plasma arc.
6. When cutting, the operator should stand upwind operation. The air can be drawn from the lower part of the table and the open area on the operating table should be reduced.
7. When cutting, when the no-load voltage is too high, you should check the grounding of the electrical equipment, the connection of the zero, and the insulation of the torch handlebars. Insulate the workbench from the ground, or install an open circuit breaker in the electrical control system.
8. The high-frequency generator shall be provided with a shielding shield. Immediately after high-frequency arc ignition, the high-frequency circuit shall be cut off.
9. The use of tantalum and tungsten electrodes should comply with JGJ33-2001
Second, the cutting operation and personnel protection 1. The plasma cutting machine used at the scene shall be provided with a rain shelter, moisture-proof and sun-protecting machine shed, and corresponding fire-fighting equipment shall be installed.
2. When cutting at high altitude, the safety belt must be fastened. Fire prevention measures must be taken around the cut and the cut. There should be special guardianship.
3. When it is necessary to cut the pressure vessels, sealed vessels, oil drums, pipes, and workpieces containing combustible gas and solution, the pressure in the vessels and pipes should be eliminated first, and the flammable gas and solution should be eliminated, and then washed. Toxic, Harmful, Flammable Substances; Containers containing residual grease should be washed with steam and alkaline water, and the cover should be opened. After confirming that the containers are clean, they can be filled with water before they can be cut. Welding in the container should take measures to prevent electric shock, poisoning and suffocation. Sealed and sealed containers shall be provided with air holes. Where necessary, equipment ventilation equipment shall be installed at the inlet and outlet. The lighting voltage in the container shall not exceed 12V. The welder and the workpiece shall be insulated. The outside of the container shall be provided with special personnel to monitor. It is forbidden to cut in containers that have been sprayed with paint and plastic.
4. It is forbidden to cut the pressure vessels and pipelines under pressure, the live equipment, the bearing parts of the load-bearing structure and the containers containing flammable and explosive materials.
5. It is not allowed to hang in the open air on rainy days. When working in wet areas, operators should stand in places where insulation is placed and should wear insulated shoes.
6. After work, cut off the power supply and turn off the air and water supply.
Editing: kunshanwl