Typical accidents and related precautions in welding and hot cutting operations

Causes of fire and explosion in welding and hot cutting operations Welding and hot cutting operations refer to the use of welding or hot cutting methods for the processing of materials, in the process of operation may trigger fire and explosion of the main reasons include: 1, the workplace is not isolated from inflammable and explosive materials and gases. 2. Welding below is not segregated. 3, gas cylinder custody, transportation, use contrary to the operation rules. 4. There is no safety inspection of welding torch, rubber pipe, acetylene generator and welding equipment before work. 5, acetylene and oxygen pipelines are missing. 6. Welding and repairing fuel containers and pipelines have not taken corresponding measures. Key points of accident prevention in welding and hot cutting operations 1. Employees must undergo special safety technical training and pass the examination, and obtain the “PRC Special Operating Operation Certificate” before they can work on the job, so as to prevent welding and cutting operations without a witness. 2. During welding and cutting operations, all inflammable and explosive materials within the working environment of 10m should be cleaned up. Attention should be paid to whether there are inflammable liquids and flammable gases in the trenches and sewers of the working environment, and whether there is a possibility of leakage of inflammable and explosive materials into the trenches and sewers, so as to avoid disasters caused by welding slag and metal mars. . 3. When high-altitude welding and cutting, it is forbidden to throw welding rod head randomly, and the welding and cutting operation should be isolated below. After the operation, it should be carefully inspected to confirm that there is no hidden fire hazard before leaving the scene. 4. Gas cylinders that meet the requirements of relevant national standards and regulations should be used. Safety operation regulations should be strictly observed in the storage, transportation and use of gas cylinders. 5. The pipelines for transporting combustible and combustion-supporting gases shall be installed, used and managed in accordance with regulations, and special safety technical training shall be provided to operators and inspectors. 6. When welding the fuel containers and pipes, the welding repair method should be determined according to the actual situation. The replacement method should be thorough when implementing the replacement method. The influence range of combustible substances should be strictly controlled in the work, and a certain voltage should be maintained according to the requirements when the method of non-replacement with pressure is implemented. The oxygen content should be strictly controlled in the work. We should strengthen the inspection and pay attention to the guardianship. We need safety organization measures.铜焊丝,Copper Welding Rods,铝焊丝,aluminium welding wire,镍焊条,Nickel electrode,药皮焊条,Flux Coated Brazing Welding Rods