Zinc Alloy Coating For The Hot Forming Process

Modern car body engineering is focusing conflicts regarding the requirements. In the eyes of the consumer design, price and power of an automobile are important. In order to meet these challenging demands and in addition to that improve the passenger safety a lot of development needs to be done. As a steel manufacturer the task is to develop materials that will meet all these qualifications and in addition to that it is necessary to think about corrosion protection properties to fulfill the long life requirements. This can only be achieved in an economical way by utilizing hot forming parts with a coating corresponding to these needs. The focus is on a solution with an active corrosion protection. The key is a specifically developed zinc alloy coating in particular with a high melting point on account of the hot forming process, a good forming behavior, paintability, adhesion properties and so on. In this contribution the new zinc-nickel alloy coating GammaProtect (R) will be introduced. Here will discuss in detail the corrosion protection and the forming properties.