Method of hot dip aluminium coating of a ferritic stainless steel strip

摘要

Method of hot dip aluminium coating of a steel strip, especially of ferritic stainless steel, in which the strip is preheated to a temperature below 500 DEG C in a first nonoxidising atmosphere containing a quantity of oxygen which is less than 3%, the said strip is heated to a temperature below 950 DEG C in a second nonoxidising atmosphere and then the said strip is brought into an atmosphere (3, 4) which is unreactive at the coating temperature and the said strip is finally dipped in a coating bath.