Welding safety

Causes of folding welding accidents

1, when the welding cutting operation, especially when gas cutting, due to the use of compressed air or oxygen flow injection, the Mars, bead and iron slag splashing can (the larger bead and iron slag splash away from operating point 5 m away), when in the working environment, inflammable, explosive or gas could fire and explosion accident will happen.

2. When welding and cutting at high altitude, inflammable and explosive items within the scope of Mars are not cleaned up. Operators throw welding rod heads in the process of work, and do not carefully check whether there is fire after the operation.

3, gas welding, gas cutting work process did not place acetylene generator according to the requirements of the provisions, before the work did not check the welding (cutting) torch, rubber pipeline and acetylene generator safety device.

4. There are deficiencies in the formulation of gas cylinders, deficiencies in the storage, filling, transportation and use of gas cylinders, and violations of safety operation rules.

5. There are defects in the formulation and installation of acetylene, oxygen and other pipes, and the deficiencies are not found and rectified in time during use.

6. When welding and repairing fuel containers and pipelines, corresponding measures are not taken as required. In the implementation of replacement welding, replacement is not complete, in the implementation of pressure non-replacement welding pressure is not enough to lead to the introduction of external open fire.

Folding welding specification

1, when the welding cutting operation, to 10 m within the scope of the working environment clean up all flammable and explosive items, the working environment should be paid attention to in the gutter and drain is liquid and combustible gas, as well as the possibility of leakage into the gutter and drain flammable and explosive substances, so as to avoid accidents caused by welding slag, metal Mars disasters.

2, high altitude welding and cutting, it is forbidden to throw the electrode head, the welding and cutting operation should be isolated below, the operation should be careful and careful inspection, confirm that there is no fire hazard before leaving the site.

3. Gas cylinders should be used in accordance with the relevant national standards and regulations, and the safety operation rules should be strictly observed in the storage, transportation and use of gas cylinders.

4. The pipelines for conveying combustible gas and combustion-supporting gas shall be installed, used and managed in accordance with regulations, and special safety and technical training shall be conducted for operators and inspectors.

5. When welding fuel containers and pipelines, the welding method should be determined based on the actual situation. When the replacement method is implemented, the replacement should be thorough, and the shadow of combustible material should be strictly controlled in the work. When the replacement method with pressure is implemented, a certain voltage should be maintained according to the requirements. The oxygen content should be strictly controlled in the work. To strengthen detection, attention to monitoring, to have safety organization measures.

Fold edit this section by hand welding technique

Manual welding is a traditional welding method, although the mass production of electronic products has been less manual welding, but the maintenance of electronic products, debugging will inevitably use manual welding. The quality of welding also directly affects the maintenance effect. Manual welding is a strong practical skills, in the understanding of the general method, to practice; More practice, can have better welding quality.