Chemical composition for the coating of electrodes for manual arc welding

摘要

The coating composition consists essentially of, by weight, 6-20% cane bagasse, 10-15% potassic feldspar, 40-50% rutile concentrate, 8-12% calcium carbonate, 10-12% ferromanganese and 10-13% potassic mica, wherein the potassic feldspar has the following composition: SiO2 65-75% Al2O3 10-15% Fe2O3 1-2% CaO 1-1.5% Na2O 4-10% K2O 4-12% TiO2 1-3%