Galvanizing Bath Management During Galvanize to Galvanneal and Galvanneal to Galvanize Product Transitions

摘要

The current state of knowledge of some bath management tools from the open literature and industrial practice applicable to the management of the CGL bath during GA ->GI and GI ->GA product transitions was summarised. Specifically, these tools are: (i) the Zn-rich corner of the phase diagram, (ii) numerical and physical modeling of bath flows and, in particular, the effect of the non-isothermal transient flows during CGG ingot melting and their impact on the transient Al distribution in the bath, (iii) the current state of knowledge of the kinetics and transformation mechanisms of CGL bath intermetallics and (iv) the use of tools such as mass balances to be able to predict bath effective Al levels as a function of CGL production parameters.