Chute-type charging devices have proven to offer optimum control over the distribution of raw material on the blast furnace stock line. Traditionally, these systems are based on electro-mechanical tilting and rotating operations and many such devices have been known to be vulnerable to breakdown. Danieli Corus and Danieli Centro Metallics […]
In mid 2015, SIJ Acroni, Slovenia, placed an order with Primetals Technologies to supply a new 95t AOD converter and a new dedusting system for their plant at Jesenice. The new equipment started production in April 2017, increasing annual liquid steel production capacity by about 35% to 530k t/yr while […]
Even with in-campaign gunning repairs, EAFs need refractory relines every one to four weeks depending on plant design and operating practices. Relines can either be done in-situ with the furnace unavailable for steelmaking during this time, or via a shell exchange system. With this latter approach two shells are available, […]
Big River Steel (BRS) located in Osceola, Arkansas, USA, on approximately 1,300 acres (5 km2) of land is one of the country’s most modern and environment-friendly steelworks. Applying innovative, clean and effective processes, the company produces high quality steels for the energy, automotive and oil and gas industries from mainly […]
The successful installation of the world’s first DQ system in a Plate/Steckel mill fulfilled the target of reducing the alloy content for selected steel grades. A rapid return of investment is expected.
In the past, steel plate was more or less a mass-produced commodity, However, over the past few years, increasing calls for high-strength, wear-resistant special steels from downstream industrial sectors have meant that steel plate has increasingly become a high quality product.
Rourkela Steel Plant is the largest producer of cold rolled non-oriented (CRNO) steels in India. Control of steelmaking, casting and rolling are critical to achieve the necessary product magnetic properties, particularly core loss. This paper describes the basics of Si steel and its production route, then describes the efforts made […]
In response to the ever-increasing demand from the automotive industry for thinner and stronger cold rolled strip steels, ANDRITZ Sundwig developed the S6-high system. This patented system provides the capability to roll thinner gauges, even at 1,000MPa or higher, yield strength. The overall design and some specifics for a Baosteel […]
Many hot-dipped galvanising lines (HDGL) tend to over-coat zinc and other coatings because the process control system is unable to compensate for strip oscillation and camber at the air knives, and hence cannot accurately control coating thickness. To ensure the guaranteed minimum thickness is achieved, the average thickness is higher […]
Due to the increasingly stringent product requirements, galvanising lines dedicated to automotive products have to be modernised in order to meet market needs. In 2017, Segal, a Tata Steel galvanising line in Belgium, placed an order with CMI to increase line capacity and to be able to process a wider […]