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Effect of Welding on the human body:

EFFECT OF WELDING


There are three aspects to the detrimental effect of argon arc welding on the human body:

Caesium
Cesium is a radioactive element in the radioactive thorium tungsten electrode, but tungsten argon arc welding is a small radiation dose, and in the permissible range, the damage is not harmful. If radiation gases or particles enter the body as an internal source of radiation, it can seriously affect health.

High-frequency electromagnetic field
When a high-frequency arc strike is used,

the intensity of the high-frequency electromagnetic field is between 60 and 110 V / m, which is the reference hygienic standard (20 V / s). M). However, due to the short time, it has little effect on the human body. If the arc starts frequently, or if used as an arc-stable device during the high-frequency oscillator welding process, a high-frequency electromagnetic field can be one of the detrimental factors.

Ridiculous Gases

ozone and nitrogen-oxygen arc,

the arc column temperature is high during arc welding. The intensity of ultraviolet radiation is much higher than that of ordinary arc welding, so a large number of ozone and oxynitrides are produced during the welding process; In particular, the concentration of the ozone period is much higher than the reference sanitary standard. If effective ventilation measures are not taken, these gases have a profound impact on human rights and are the most important detrimental factor for the welding of Arcelor.

Ventilation measures

Argon arc welding work site should have good ventilation to exclude harmful gases and emit smoke. In addition to plant ventilation, many axle fans can be installed to remove the outer axle where the welding workload is large and the welding machine is centered. In addition, local ventilation measures can be used to remove harmful gases around the arc, such as open arc exhaust hoods, exhaust flares, and portable small fans.

As far as possible, protective ray measures are taken using an ultra-low radiation dose for strontium tungsten electrodes. For processing tantalum tungsten and tantalum tungsten, wheel grinding seals or drafts should be used. Operators must wear personal protective equipment such as masks and gloves. Wash hands and face after processing. Tantalum tungsten and tantalum tungsten should be stored in an aluminum box.

Prevention

High frequency
High-Frequency Arc Arc Welding Phase To prevent and weaken the effect of the high-frequency electromagnetic field, steps are taken 1) Fine work, flashlight cable, and groundwater. The wire is left. Metal twisted wire; 2) the frequency is quite low; 3) Do not use the high-frequency tester as a stationary arc device to reduce the operating time of high-frequency power. (4) Other personal protective measures. Due to the strong action of argon arc and ultraviolet light, it is advisable to wear non-cotton height (such as acid-resistant, silk, etc.) during argon arc welding. If the container is welded and local ventilation cannot be used, personal protection such as a flow helmet, a shiny cover, or a ratio may be used.