German steel maker Salzgitter announced that the first coil from new Hot Dip Galvanizing Line No 3 has been produced. Construction commenced in June 2019 and commissioning begun at the end of 2021. When the line was first started up, and in the weeks that followed, the strip bypassed the furnace and the galvanizing unit in what was termed a cold run. Thereafter the furnace was brought up to temperature and dried and the strip threaded through, ready for a so-called hot run. After a further period of weeks, once the zinc in the zinc tank had been heated up and melted, the next project milestone was reached: The tank rollers and the stripper jet went into action to produce the first galvanized coil. The annealing furnace is the centerpiece of the new line. This new furnace concept enables the production of high- and ultra-high-strength steels. The annealing furnace allows for higher annealing temperatures, followed by faster strip cooling and longer dwell times. The new line will supplement the two existing hot dip galvanizing lines and provide additional production capacity. The application areas extend from the automotive industry via domestic appliances through to construction. What’s more, the configuration of the line as a whole also fulfills the structural as well as technical requirements to implement further innovative material concepts for the future. The new hot dip line can handle higher strength steels and support enhanced formability, and consequently also more complex component geometries.
German steel maker Salzgitter announced that the first coil from new Hot Dip Galvanizing Line No 3 has been produced. Construction commenced in June 2019 and commissioning begun at the end of 2021. When the line was first started up, and in the weeks that followed, the strip bypassed the furnace and the galvanizing unit in what was termed a cold run. Thereafter the furnace was brought up to temperature and dried and the strip threaded through, ready for a so-called hot run. After a further period of weeks, once the zinc in the zinc tank had been heated up and melted, the next project milestone was reached: The tank rollers and the stripper jet went into action to produce the first galvanized coil. The annealing furnace is the centerpiece of the new line. This new furnace concept enables the production of high- and ultra-high-strength steels. The annealing furnace allows for higher annealing temperatures, followed by faster strip cooling and longer dwell times. The new line will supplement the two existing hot dip galvanizing lines and provide additional production capacity. The application areas extend from the automotive industry via domestic appliances through to construction. What’s more, the configuration of the line as a whole also fulfills the structural as well as technical requirements to implement further innovative material concepts for the future. The new hot dip line can handle higher strength steels and support enhanced formability, and consequently also more complex component geometries.
