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Safety precautions after welding and cutting work is completed


Release time:

2024-10-22

Before leaving the work site, pressure relief, water drainage, and removal of the hollow carbide basket should be performed.

1. Tighten the safety cap on the oxygen cylinder, and place the oxygen cylinder and acetylene generator in the designated location. Before leaving the work site, depressurize, drain water, and remove the hollow calcium carbide basket.

2. Regularly test and inspect pressure vessels, safety valves, and pressure gauges, as well as conduct periodic and mandatory inspections. Before checking and adjusting regulators and safety accessories, the hollow calcium carbide basket must be removed, and residual gas must be eliminated.

3. Regularly clean and repair the water seal safety device.

4. When stopping gas welding (cutting) for a short time, the welding and cutting torch valves should be closed. Before leaving the work site, the welding and cutting torch must be extinguished. Close the gas ball valve. Release the pressure from the regulator and discharge residual gas from the hose. Remove the float from the acetylene dust collector or stop the water supply, and take out the remaining calcium carbide from the basket. Store properly. Clean and organize hoses and welding/cutting tools. Calcium carbide granules should be destroyed outdoors.

5. After winter operations, the water in the acetylene generator tank should be drained to prevent freezing.

6. If the acetylene hose falls off, ruptures, or catches fire during use, immediately extinguish the welding or cutting torch flame, and then stop the gas supply. If necessary, the hose can be bent to extinguish the flame.

7. If the oxygen hose catches fire, quickly close the oxygen cylinder valve to stop the oxygen supply. However, do not use the method of bending the hose to extinguish the flame.

8. When extinguishing the welding torch flame, first close the acetylene valve, then close the oxygen valve. For extinguishing the cutting torch, first close the cutting oxygen, then close the acetylene and preheating oxygen valves, and then loosen the adjusting screw of the regulator.

9. Before repairing the acetylene generator, the residual gas in the tank must be discharged using the water-filling and venting method, and the backfire preventer and gas storage tank must be removed, with all valves and sealing covers opened. Extra caution is required during welding.

10. When welding or cutting operations in large containers are not completed, it is strictly prohibited to place welding or cutting torches inside the container to prevent gas valve and hose joint leaks, which could store large amounts of acetylene and oxygen inside the container. If exposed to an ignition source, it could cause combustion and explosion.

In recent years, Changzhou Mingyue Welding and Cutting Equipment Co., Ltd. has continued to grow and develop, with a scale of 50-99 people. The company not only pays attention to the improvement of product quality and technological innovation, but also actively expands the market, and has established long-term and stable cooperative relations with many well-known enterprises at home and abroad. In the future, the company will continue to adhere to the business philosophy of "customer first, forge ahead", continuously improve its own strength and competitiveness, and provide customers with better products and services. At the same time, the company will also actively respond to national policies, promote industrial upgrading and transformation, and contribute to the sustainable development of the industry.


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