Category: Steel Making

The furnace chamber, located above the hearth of an electric arc furnace, is the volume enclosed by the water-cooled panels. This region is essential for charging operations and for completing various metallurgical processes. Like the hearth, the furnace chamber often has a truncated cone shape. Furnace Wall Inclination and Height…

In electric arc furnace design, the hearth refers to the lower section of the furnace that holds the molten steel during melting. This area plays a critical role in both metallurgical performance and structural integrity. Hearth Shape and Geometry Typically, the hearth is designed with a spherical bottom and a…

The roof of an electric arc furnace is typically designed in an arched, dome-like shape. Depending on the furnace type and size, the weight of the roof can vary significantly—but it is generally very heavy. For example, the roof of a 5-ton brick-lined electric arc furnace may weigh nearly 5…

In electric arc furnace (EAF) steelmaking, the “power level” refers to the rated transformer capacity allocated per ton of steel. Essentially, it indicates how much electrical energy (in kVA) is provided for melting each ton of steel. This metric is a key indicator of the furnace’s technical capability and has…

EBT (Eccentric Bottom Tapping) is a modern electric furnace tapping technology, first jointly developed by Mannesmann-Demag and Thyssen in Germany in 1978. This technology sets a special tapping hole behind the bottom of the electric arc furnace, 20 to 60 cm close to the furnace wall. Through structural design and…

In the field of steel smelting technology, electric arc furnace (EAF) and converter (BOF) are two mainstream production processes with significant differentiation characteristics. What are the differences in the scope of applicable steel types? Electric arc furnace steelmaking is dominated by the production of high-value-added alloy steel, especially good at…

Electric furnace steelmaking refers to a steelmaking process that uses scrap steel as the main raw material and uses electricity as the main heat source. Typical representatives include electric arc furnaces (EAF), which are widely used in the production of various types of steel such as stainless steel, high alloy…

In modern steel production, off-furnace refining has become the core link to ensure the quality of molten steel and improve product performance. Especially in electric furnace steelmaking, molten steel often contains high levels of gas and inclusions, which must be further purified through off-furnace refining to meet the increasingly stringent…

EAF + LRF + CCM: Applicable to conventional high-quality alloy steels This process is suitable for producing high-quality alloy steels with low gas content requirements. The electric furnace stage mainly controls the content of harmful elements and performs preliminary deoxidation during the steelmaking process. After the refining furnace (LRF) receives…