VERFAHREN ZUM LOKALEN SCHUTZ VON EISEN-UND STAHLTEILEN BEI WAERMEBEHANDLUNGEN

摘要

The surface of iron and steel is locally protected against the take up of carbon, nitrogen and boron during treatment in carburising, nitriding and boriding gaseous and solid media at temperatures of up to 1100 DEG C., by prior to the heat treatment, flame spraying with an aluminium or aluminium layer having a thickness of 10 to 100 mu m.