Contribution of double reversible cold drawing to the increase of plates quality for enamelling

There are researches aiming to substitute the simple cold drawing by the reversible double cold drawing in order to manufacture plates for enamelling. The experiments (running on small and on large scale) had in view to state the quality of adherence to enamelling for both manufacturing versions (simple cold drawing and double cold drawing). one presents, also, the results concerning the connection between cold drawing and enamelling using the metallographic structures and mechanical properties.