| 简介 |
The present invention relates to an improved method in a welding field, which uses a contact-to-work-distance longer than a recommended contact-to-work-distance combined with effectively reduced shielding gas flux by applying at least one porous reducer of 0.25-10 parts by weight to an electrode composition including lime-fluoride based slag, selected from a group comprising : (a) at least one metal nitride former selected from a group including Ti, Zr, Ba, and Al while including an alloy including at least one among checked metals or a metal alloy thereof, and an Li compound replaced in case Al does not exist in the former metal nitride; and (b) at least one rare earth metal selected from a group including La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, and Y. Usually, a combination of (a) and (b) are included. |
客服热线：
手机版
二维码
