What is the representative symbol of TIG welding?

The representative symbol of TIG welding is TIG.

TIG welding is usually called TIG welding, which is an arc welding method that generates heat between the non-consumable electrode and the workpiece. The electrode rod, molten pool, arc and the workpiece near the heating area are all protected by gas state, which is provided by gas or mixed gas flow, and must be fully protected, because even a small amount of air will pollute the weld.

Safety protection measures for TIG welding;

1, ventilation measures There should be a good ventilation device at the argon arc welding operation site to discharge harmful gases and smoke. In addition to workshop ventilation, several axial flow fans can be installed to exhaust air in places with heavy welding workload and concentrated welding machines.

In addition, the harmful gases around the arc can be extracted by local ventilation measures, such as open arc smoke hood, smoke torch and portable small fan.

2. As far as possible, cerium tungsten electrode with extremely low radiation dose is used as radiation protection measure. When processing thorium tungsten electrode and cerium tungsten electrode, sealed or exhaust grinding wheel should be used for grinding. Operators should wear personal protective equipment such as masks and gloves, and wash their hands and faces after processing. Thorium tungsten electrode and cerium tungsten electrode should be kept in aluminum box.

3. Measures to prevent high frequency In order to prevent and weaken the influence of high frequency electromagnetic field, the measures taken are as follows:

1, the workpiece is well grounded, and the welding torch cable and ground wire should be shielded by metal braided wire.

2. Reduce the frequency appropriately.

3. Try not to use high-frequency oscillator as arc stabilizer to reduce high-frequency electric action time.

4. Other personal protective measures During argon arc welding, due to the strong effects of ozone and ultraviolet rays, non-cotton work clothes (such as acid-resistant woolen cloth and tussah silk) should be worn. When welding in the container and local ventilation cannot be used, personal protective measures such as blowing helmet, blowing mask or gas mask can be adopted.