SCREEN BAR, BAR SCREEN AND METHOD FOR PRODUCING A SCREEN BAR

摘要

The present invention relates to a screen bar (1) for a bar screen, a bar screen and a method for producing a screen bar (1). The screen bar (1) according to the invention and the bar screen equipped with such a screen bar not only are more cost-effective to produce and have a long service life, but also have improved use properties. The method according to the invention furthermore makes it possible to produce such bar screens in a cost-effective manner. This is achieved according to the invention in that the screen bar (1) is produced from a composite steel sheet which is composed of at least three steel layers that are located one above the other and are connected non-detachably together by roll cladding, wherein the steel layer located in each case on the outside is in each case an outer layer (D1, D2) and the steel layer located between the outer layers is a core layer (K), and in that the core layer (K) has greater deformability than the outer layers (D1, D2) and the outer layers (D1, D2) exhibit greater hardness than the core layer (K).