ZINC-BASED ANTI-CORROSION COATING FOR STEEL SHEETS, FOR PRODUCING A COMPONENT AT AN ELEVATED TEMPERATURE BY HOT FORMING DIE QUENCHING

摘要

The invention relates to a zinc-based anti-corrosion coating for steel sheets or steel strips, which for the purpose of hardening are at least in parts heated to a temperature above Ac3 and then cooled at a temperature situated at least partially above the critical cooling speed, the anti-corrosion coating being a coating applied by hot dipping. In addition to at least 75% by weight zinc and possible unavoidable impurities, the coating also contains 0.5 to 15.0 % by weight manganese and 0.1 to 10.0 % by weight aluminium.