Diverse types of Metal Welding Electrodes

Welding Electrodes are manufactured in order to render the best services in the welding industry. The process of welding enables joining various metals to form desired end products required by the market. Metal arc welding is the most active application for welding electrodes across industries.
In this sector an electrode is formed by a metal core wrapped up in a flux coating or organic or minerals.

The flux coating of a welding electrode offers electric isolation of the electrode, alloy element and ionized element addition, covers the slag to render fusion bath protection, as a result the priming process becomes quick and easy.

With rutile coating the coating is basically of titanium dioxide. It is a stable electric arc with maximum versatility. Easy for priming with medium penetration, but weak resistance to hot cracking, forms dense and plenty of slag.

Acid based welding electrodes are made of silica, iron oxide and manganese. Less resistance to cold cracking, ample viscous slag that can be removed easily, medium penetration and high fusion rate along with limited to horizontal down welding.

Basic arc welding electrodes are fluorite and calcium carbonate coated, with low per cent of hydrogen but highly hygroscopic. Better mechanical properties and mean penetration, resistant to cold cracking with higher performance.

Iron oxide and manganese is used for oxide welding electrodes. The slag is removed easily, the slag deposit looks good and penetration is minimal.

Organic materials such as cellulose are used for this kind of electrodes, to get vertical down welding and first weld pass. Larger gas protection, higher chance of cold cracking, deep penetration and coarse weld deposit at the end are the significant features of it.