Surfacing Layer Development for Cast Iron Object Repair

Resumo

A method is proposed for preparing high-strength cast iron with spheroidal graphite by introducing calcium oxide and other calcium-containing ingredients into the composition of flux cored wire. It is shown that introduction of carbon, silicon, and calcium facilitates the formation in a surfacing layer of a ferrite-pearlite structure and spheroidal graphite. Theoretical bases are provided for the surfacing metal composition.