Efficiency of the process of penetration of the parent metal in submerged-arc surfacing

Abstract

Investigations of the process of submerged-arc surfacing show that the experimental values of the thermal process of penetration of the parent metal at low values of current and surfacing speed are approximately half the values obtained in theoretical investigations. The addition of a correction to the well-known Rykalin procedure results in calculated values with an error not higher than 10% and can be used to determine the area of the penetration zone of the parent metal in submerged-arc surfacing in the surfacing current range of 400–1000 A and the surfacing speed range of 5–10 m/h.

Keywords:

• arc surfacing
• coefficient of thermal efficiency of the parent material penetration
• thermal diffusivity