Surface coating a micro-alloyed, strip-shaped steel substrate in a hot-dip coating system, comprises subjecting the steel substrate to a recrystallization annealing before coating and then cooling at a specified temperature

摘要

The process for surface coating a micro-alloyed strip-shaped steel substrate in a hot-dip coating system, comprises subjecting the steel substrate to a recrystallization annealing before the coating and then cooling at a temperature, which lies above the temperature of a melting bath, where zinc or zinc-based materials and/or aluminum or aluminum-based materials are used as surface coating. The cooling the steel substrate is controlled, so that the temperature of the melting bath is regulated by immersing the cooled steel substrate. The regulation step is satisfied bases on a function.