KOBELCO LB-52

LB-52 is a low-hyogen flux-covered electrode that is widely used in welding of 490 MPa high tensile strength steels in all welding positions. Crack resistance Has mechanical properties And can pass an excellent X-ray inspection. In addition, LB-52 provides a stable arc. Knock-off easily. And the weld scales are uniform and beautiful

1) The electrodes should be baked before use at a temperature of 30-350oC for 30-60 minutes.
2) The Backstep Technique should be used to initiate the arc. Or it may start an arc on a small piece of iron. Before starting to weld and move the arc stretcher in the morning to the area to be welded. To prevent the formation of air bubbles at the beginning of the weld
3) Keep the arc distance as short as possible. To prevent the arc flame extinguished And prevent the formation of air bubbles