An Experimental Study on the Penetration of High-Titania Potassium Type Coated Arc Welding Rod

고산화(高酸化)티탄계(系)아아크용접봉(鎔接棒)의 Penetration에 관(關)한 실험적연구(實驗的硏究)

The penetration of domestic high-titania potassium type arc welding rod has been investigated experimentally. The penetration of this type arc welding rod is influenced much more by changing welding current than welding speed and thickness of base metal in range of $6{\sim}9mm$. Values of penetrations were $1.00{\sim}1.75mm$ for $3.2mm{\phi}$ rod, and $1.10{\sim}1.86mm$ for $4mm{\phi}$ rod in adequate welding current range. The domestic rod's penetration is deeper than same type rod of the United State's product.