Objective
For obvious economical reasons, high strength steel strip will find in the future more and more applications. For these new applications, high strength sheet is hot-dip galvanised to resist corrosion. These steels are renowned to present wettability and adhesion problems during hot dipping. A previous work has shown that a pre-oxidation, obtained by adjusting the air/gas ratio of the direct fired furnace (DFF), followed by a reduction in the soaking zone of the radiant tube furnace, can improve significantly the zinc wettability. The aim of the project is to develop technical solutions, allowing the industrial application of the oxidation/reduction process for different steel grades. A sensor will be adapted on pilot and industrial lines to control the oxide thickness and the strip temperature after the DFF. The improvement of the zinc wettability and adhesion on conventional and high strength steels will be determined by trials on pilot lines.
Topic(s)
Call for proposal
Data not availableFunding Scheme
CSC - Cost-sharing contractsCoordinator
4000 LIEGE
Belgium