Patent ID: 6955730

Claim:
A method for treating a metallurgical product in a furnace, comprising the steps of: i) introducing said product into said furnace at time t 0 ; ii) subjecting said product to the desired treatment before being removed from said furnace at time t 3 ; iii) increasing the temperature of said products to about 650° C. during the period (t 1 -t 0 ), wherein t 1 represents the time at which the surface temperature is reached; iv) increasing the temperature of said product almost uniformly to about 85% of the desired final temperature (T equalization ) during the period t 2 -t 1 , wherein t 2 represents the time at which the temperature of said product is reached; v) increasing the temperature of said product at a decreasing rate to said desired final temperature during the period (t 3 -t 2 ); and vi) enhancing the metallurgical quality by reducing the thickness of scales or decarburized layer formed on the surface of said product.