Täitevardaid

Täitevardaid, often translated as filler rods, are consumable materials used in various welding and brazing processes to add material to the joint being joined. Their primary purpose is to fill gaps, build up surfaces, and create a stronger, more complete weld or braze. The composition of a täitevarda is crucial and is typically matched to the base metals being joined to ensure compatibility and optimal joint properties. For instance, steel filler rods are used for welding steel, while aluminum filler rods are used for aluminum.

These rods come in various diameters and lengths, catering to different applications and welding techniques. They can be solid, flux-cored, or tubular, with the flux-cored and tubular variants containing a fluxing agent within their core. This flux serves multiple purposes, including cleaning the base metal surface, preventing oxidation during the heating process, and stabilizing the arc in arc welding applications. The selection of the correct täitevarda depends on factors such as the type of metal, the thickness of the material, the required joint strength, and the welding or brazing process being employed. Common welding processes that utilize täitevardaid include shielded metal arc welding (SMAW), gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), and brazing.