Method for manufacturing covered electrode for arc welding

B - Operations – Transporting – 23 – K

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B23K 35/365 (2006.01) B23K 35/40 (2006.01)

Patent

CA 1094896

METHOD FOR MANUFACTURING COVERED ELECTRODE FOR ARC WELDING ABSTRACT OF THE DISCLOSURE In a method for manufacturing a covered electrode for arc welding which comprises pressure- coating a coating composition containing an aqueous alkali silicate solution as major binder and a particulate inorganic matter comprising an inorganic oxide, carbonate and fluoride around a core wire, the improvement which is characterized by incorporating 0.001 to 5.0% by weight, based on the alkali silicate, of pullulan in said coating composition.

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