METHOD FOR PRODUCING MOISTURE RESISTANT ELECTRODES

摘要

METHOD FOR PRODUCING MOISTURE RESISTANT ELECTRODES OF INVENTION A method of making flux-covered welding electrodes which are resistant to moisture absorption wherein untreated covered electrodes are treated with a dilute aqueous dispersion of at least one material taken from the class of silicon bearing materials consisting of colloidal amorphous solid silicas, quarternary ammonium colloidal silica sols and soluble silicates of lithium and potassium. S P E C I F I C A T I O N S