To pass on to isolate the air outside of the weld zone, to prevent oxidation of the weld zone.
TIG also known as argon gas shielded arc welding. Argon protective gas around the electric arc to pass on to isolate the air outside of the weld zone, to prevent oxidation of the weld zone.TIG welding is divided into different electrode melting TIG welding and TIG welding two non-melting.1. Non-melting TIG weldingThe working principle and characteristics: non-melting TIG welding arc in the non-melting electrode (usually tungsten) and the workpiece between the combustion flow through a welding arc around a chemical reaction and metal inert gas (commonly argon ), forming a protective hood, the tungsten extreme head, the arc and weld pool, and at a high temperature of the metal is not in contact with the air, to prevent oxidation and absorption of harmful gases. Welded joints to form a dense, very good mechanical properties.2. Melting TIG weldingThe working principles and characteristics: wire fed through the wire wheel, the conductive mouth conductive, arc is generated between the base material and the wire to melt the wire and the base material, and with the inert gas argon arc and molten metal to be welded. Gas Tungsten Arc Welding difference: a wire electrode, and was constantly melting fill in the weld pool, weld formed after condensation; another protective gas, with the melting of the TIG welding technology application, protection development of argon gas by a single widely used for a variety of mixed gases, such as argon or helium as a shielding gas, known as metal inert gas shielded arc welding (internationally referred to as MIG welding); inert gas with oxidizing gases (O2, CO2) gas mixture for the protection of gas, or CO2 gas or CO2 + O2 mixture as a protective gas, collectively referred to as metal active gas shielded arc welding (internationally referred to as MAG welding). From its mode of operation, the most widely used semi-automatic melting TIG welding and argon-rich mixed gas shielded arc welding, followed by automatic melting TIG welding.1. Melting characteristics compared to arc welding and gas tungsten arc welding(1) Efficiency is high because it is a large current density, heat concentrated fused high welding speed. In addition, the arc. TIG(2) the need to strengthen the protection arc strong, flue gas, so to strengthen protection
Argon fluoride welder
