During the process of steelmaking, calcium treatment improves molten quality. A type of welding cable, pure calcium wire has a steel core and a solid powder in the sheath. It can be used in many steelmaking applications. Deoxidation is one of them. Desulfurization and inclusion modification are also included. In addition, the process helps reduce slag contamination in continuous castings made from aluminum-killed metal and prevents nozzle blocks.
Inclusion Removal - Pure calcium cored steel wires can be used to remove impurities from molten iron. They do this by converting them into calcium oxide or sulfide. This increases the machinability of the steel and its ductility.
Pure calcium-cored wires can be used to modify inclusions, deoxidize steel, and reduce oxygen concentration. It can also be used to remove slag from the surface of the molten steel, which reduces the oxygen concentration and improves the quality of the final product. It can also modify the shape inclusions, which makes them easier to recover.
The steel sheath on a pure, calcium-cored wire is made up of strips of low carbon steel that have been cold-rolled and welded into one continuous strand. The strand is then fed into the smelter via a spinneret. The smelter injects the sheath in the molten metal to perform various tasks, such as desulfurization or modification.
This cored wire has been widely used in the iron, steel, and foundry industries. Its advantages include high alloy yields and lower smelting prices, as well as a reduction of smelting duration and precise control over composition. It can also improve molten-steel quality and smelting efficiency.
Hi-Cal® is a more economical calcium treatment than other methods. It has a thinner sheath compared to conventional cored cables and a higher filling rate of powder. It can be used without expensive lances in existing steelworks, which reduces both investment and operational costs. Hi-Cal(r), can be delivered vertically on wooden or steel pallets and is wrapped in plastic or steel cages. The wire is available in a variety of diameters. The Hi-Cal(r), unlike conventional cored wires can be stripped and reused. Therefore, it has a lower cost per ton and can save on raw material consumption. It is an environmentally-friendly, safe and reliable steelmaking method. Its unique application and production technology makes it a competitive option to traditional cored-wires. Hi-Cal(r), a patented technology, can increase the amount and quality of steel smelted and reduce energy consumption.
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