What can be done to minimize the harm of electric welding to human body?

1. Improve welding technology, welding technology and materials. By improving the welding technology, the welding operation is mechanized and automated, and people are isolated from the welding environment, thus fundamentally eliminating the harm of welding operation to human body. By improving the welding process, such as reasonably designing the structure of the welding container and adopting a new process of single-sided welding and double-sided molding, the welder can be prevented from welding in a poorly ventilated container, and the working conditions of the welder are greatly improved. Another example is to select CO with in-situ suppression technology for ion charging of welding dust. Protective welding technology can restrain 80% ~ 90% of welding dust in working face, realize on-site dust purification and reduce welding dust pollution. Since the welding hazards are mostly related to the composition of covered electrode coating, it is also one of the effective measures to reduce the welding hazards by improving covered electrode materials and choosing non-toxic or low-toxic covered electrode. 2. Improve the ventilation in the workplace. Ventilation modes can be divided into natural ventilation and mechanical ventilation. Among them, mechanical ventilation relies on the pressure generated by the fan to ventilate, and the effect of dust removal and detoxification is good. Therefore, mechanical ventilation measures must be taken when welding in rooms with poor natural ventilation and closed containers. 3. Strengthening personal protection measures Strengthening personal protection can prevent the harm of toxic gases and dust generated during welding. Operators must use corresponding protective glasses, masks, masks and gloves, wear white protective clothing and insulated shoes, and are not allowed to wear short sleeves or roll up sleeves. If they work in a closed container with poor ventilation, they must also wear a protective helmet with gas supply performance. 4. Strengthen labor protection publicity and education and on-site tracking and monitoring. Welding workers should be educated on occupational safety and health knowledge to improve their self-protection awareness and reduce the occurrence of occupational diseases. At the same time, we should also strengthen the monitoring of dust and toxic hazards in welding workplaces and the physical examination of welders to find and solve problems in time.