electrode for solid basic seed culture high yield to an angle or corner of the sheet of ordinary steels sweet or semi sweet

摘要

Arc welding electrode comprises an iron base core with semi-basic outer layer of compsn:- 45-75% metal powder 8-15% deoxidants, 10-20% MgCO3 and/or MgO, 0-4% CaCO3 (or BaCO3 equivalent) 0-5% fluorides, 8-15% TiO2 or ZrO2, 2-8% iron oxides and opt. org. materials, alginates, kaolin or bentonite, total of 5%, the components being bound together with 15-30 wt. pts alkali silicates per 100 pts powder. The electrode is used for welding plates of mild or medium steel or low alloy steels.