Argon welding

Argon welding use the argon as a protective gas welding technique,so also called argon gas welding.

That is, around the arc of the argon gas through the air isolated from the welding area,to prevent oxidation of the weld zone.

Argon welding technique is based on the general principle of arc welding using argon for metal welding consumables, welding consumables by high current to be welded on a substrate to form a liquid melt into the pool, make welded metal and weld a welding material to achieve metallurgical bonding technique, the molten solder at a high temperature in an argon gas continuously sent, does not make the welding material and the air in contact with oxygen, thereby preventing oxidation of the welding material, the welding can be stainless steel, iron-based metal hardware.

According to the different welding electrodes, it can be divided into MIG and TIG two kinds of non-consumable electrode.

Non-MIG working principle and characteristics: non-TIG welding is an arc in a non-consumable electrode (usually tungsten) and the workpiece burning around the welding arc and the metal does not flow through a chemical reaction Inert gas (commonly argon), the formation of a protective hood, the extreme portion of the tungsten, and the pool of high temperature metal arc surrounding the heat affected zone 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.

MIG working principle and features: wire fed through wire wheels, tip conductivity between the base metal and the welding arc, so that the wire and base metal melted and inert gas argon arc and molten metal to welded. It GTAW difference: one is to make the wire electrode, and was constantly fill the bath melts, forming a weld after condensation; Another is the use of protective gas, with MIG technology applications, protection argon gas from a single gas mixture developed extensive variety of applications, such as melting when called argon or helium as a shielding gas inert gas shielded arc welding (MIG internationally referred to as welding); inert gas When the oxidizing gases (O2, CO2) gas when mixed shielding gas, or CO2 or CO2 + O2 gas mixture for the protection of gas, referred to as metal active gas shielded arc welding (referred to as the international MAG welding). See its mode of operation, is currently the most widely used and semi-automatic MIG welding argon-rich gas mixture, followed by automatic MIG.

What is the difference between arc welding and argon gas welding?

Arc welding is stick welding, and welding rods supply their own shielding gas when burned in order to create the conditions required to weld a proper bead and prevent porosity, weld contamination, and various other unfavorables.

Tig and Solid wire both use solid pure filler metal (like gold for sizing up or fitting jewels to jewelry) or food grade stainless/aluminum. Both processes deal with adding pure filler material so external argon/co2 shielding gases need to be supplied to provide the conditions required to sustain an arc sufficient to weld.

Fluxcored wire welding is sometimes the exception, as some fluxcored wire (not all but some) provide their own shielding gas included in the core of the wire which when burned produce its own shielding gas.

Essentially, every welding process is a gas welding process, whether it’s Argon gas or an alternative your shielding with. Arc is gas welding, Tig is gas welding, mig is gas welding. If you removed the gas from the welding equation, you’ll almost always end up with a weld joint that is substantially weaker than the pieces your joining. (filler/bead metal/material is always going to have a higher tensile strength than the metal your welding together. just a fyi)

Running out of gas is never pleasant. welding is no exception.

Weled steel pipe specification, Standard and identification

Welded steel pipe (steel pipe manufactured with a weld) is a tubular product made out of flat plates, known as skelp, that are formed, bent and prepared for welding.