FLUX-CORED ELECTRODE Russian patent published in 1997 - IPC

FIELD: mechanical engineering; mechanized application of corrosion and wear resistant coatings to low-carbon and low-alloyed steel working surfaces of parts such as rolls and plates of bridge supports. SUBSTANCE: sheathing of flux-cored electrode is made of low carbon tape and powder charge contains the following components, mass %: chromium 11.0 - 13.5; chromium carbide 3.5-3.9; nickel 0.2-0.5; manganese 0.4-0.7; ferromolybdenum 0.8-1.2; ferrosilicon 0.3-0.6; sodium fluosilicate 0.5-0.9; zirconium dioxide 1.6-2.4; ferrum 4.8-6.20; low carbon steel of sheathing - the rest. Flux-cored electrode fill factor is 24.5 - 28.5 %. Flux-cored electrode has high operating characteristics, it prevents development of pores and cracks in welded-on metal at surfacing with preliminary heating to 240-280 C at high level of mechanical homogeneity of welded metal. EFFECT: improved quality of surfacing. 2 tbl