First, the welding of the harmful factors
TIG harmful factors affect the human body in three areas: (1) Tungsten radioactive thorium in thorium are radioactive elements, but when TIG tungsten thorium radiation dose is very small, within the allowable range, there is little risk. If radioactive gases or particles into the body as internal sources, it will seriously affect health.
(2) high-frequency electromagnetic fields using high-frequency arc, the resulting high-frequency electromagnetic field intensity in the 60 ~ 110V / m, with more than reference standard (20V / m) times. However, as time is very short, little effect on the human body. If you frequent the arc, or the high-frequency oscillator as a stable arc welding process device in continuous use, the high-frequency electromagnetic fields can be harmful to one of the factors.
(3) harmful gases - ozone and nitrogen oxides, Welding Cable, the arc column and high temperature. UV radiation intensity is much larger than normal  welding alloys, the welding process thus generates a lot of ozone and nitrogen oxides; in particular, far above the reference concentration of ozone health standards. Without effective ventilation measures, these gases a great impact on human health is the most important harmful factors welding. Collector Tuisan second, security measures.
(1) ventilation measures to job site welding have a good ventilation devices to emit harmful gases and soot. In addition to plant ventilation, heavy workload in welding, welding concentrated, installation of several axial exhaust fan out.
In addition, the measures can be applied to local ventilation to suck out harmful gases surrounding the arc, such as using open arc exhaust hood, exhaust gas torch, light a small fan and so on. This article Source: Examination Tai
(2) radiation protection measures to be adopted in a very low radiation dose of cerium tungsten. Thorium and cerium tungsten tungsten processing, should be sealed or ventilation type grinding wheel, the operator should wear masks, gloves and other personal protective equipment, wash hands after going to face processing. Thorium and cerium tungsten tungsten should be on the aluminum case for safekeeping.
(3) protective measures for high-frequency
High-frequency electromagnetic fields in order to prepare for and reduce the impact of the measures taken are: 1) well grounded workpiece, torch and ground cable to use metal braided wire shielding; 2) appropriate to reduce the frequency; 3) Try not to use high-frequency oscillator as stable arc devices, reducing the role of high-frequency electric time.
(4) other personal protective measures
mig welding wires, due to the strong effect of ozone and ultraviolet light, should wear non-cotton clothes (such as acid does, oak silk, etc.). Welding in the container could not be the case with local ventilation, air-style helmet can be used, air masks or protective masks and other personal protective measures.

keywords: Copper Electrode