Welding of special operations, its main occupational hazard is dust, toxic gases, high temperatures, arc light, high-frequency electromagnetic field.

1, the main hazards in welding work: First, the metal dust hazards. Second, are the hazards of toxic gas (ozone, carbon monoxide, nitrogen oxides such as nitrogen dioxide, etc.). Third, the arc light radiation hazards.

2, the protection of the occupational hazards of welding work: First, to improve the welding technology, improved welding processes and materials. The second is to improve the operating ambition ventilation conditions. The third is to strengthen personal protection. The fourth is to strengthen publicity and education and the scene to track and monitor the work of the labor protection.

3, enhance personal protection, can prevent the dangers of toxic gases and dust generated during welding. Operating personnel must use appropriate protective glasses, face shields, masks, gloves, wearing white protective clothing, insulated shoes, must not wear short-sleeved clothing or roll up their sleeves, and poor ventilation in the closed container, must be worn to use blowing performance protective helmets.