EUROPEAN STEEL TECHNOLOGY AND APPLICATION DAYS 2017 - ESTAD 2017

Hot work tool steels have been developed, employing combined precipitation of carbides and intermetallic particles. Synergistic precipitation hardening effects were used to reduce the necessary carbide content. An appropriate minimum of nickel and aluminium additions were determined to precipitate intermetallic NiAl particles, maintaining the materials characteristics. Material and...

**Abstract** In this work, we present a novel inspection technique for surface defects on cold and hot steel products during production. Common approaches for cold steel products are based on 2D images, which are highly influenced by the surface texture and thus lead to high false alarm rates on hot surfaces. Automated detection of defects on hot surfaces is of special interest, though,...

The changed chemical composition of modern advanced high-strength steel (AHSS) grades has certain influences on the pickling process. Especially the higher contents of silicon and manganese have a critical impact on the process, which leads to problems in conventional pickling lines. The most significant challenges are sludge occurrence, varying pickling times, changed visual appearance,...

Inline measurement of mechanical and magnetic properties of steel strip with contactless, non-destructive techniques offers considerable potential for further technological optimization and new applications. This is achieved by the PropertyMon system from Primetals Technologies employing state-of-the-art methods for indirect measurements using electromagnetic signals. By measuring the...

A series of measurement systems have been developed by CRM during last years. This covers measurements from entry to exit of galvanising line. These measurements cover: oxide thickness measurement for oxydo-reduction control inside furnace, the shape of the strip inside furnace to control heat buckles, the position of wipers and the shape and vibrations of strip at bath level to control zinc...