Description Of Plasma Thermal Spraying CrZrCu Inlaid Tungsten Electrode

The CrZrCu-inlaid tungsten electrode is a specialized filler metal electrode comprising a unique composite structure that provides high performance. Several steps are undertaken employing high-melting-point tungsten as the core substrate, which is thereafter plasma mechanically powder-coated on the working end surface with a sturdy coating of Cr, Zr, and Cu alloy. The structure provides a unique combination of electrodes, as the tungsten electrode provides conductivity and high-temperature resistance while the alloy coating provides oxidation resistance and ablation stability. The coating also suppresses volatilization from tungsten and oxidation, which leads to longer lifetime and a stable pure arc, especially during high-demanding functions. The welding and melting processes in automotive, aerospace, and robotic plasma arc welding and cutting are high-injection industries that require precision and are thus most suitable for this electrode.