Developed for 30 years and continuously improved, cored wire represents the State of Art for calcium treatment. It is a key technology for achieving better and more consistent steel quality.
It purifies the molten steel,changes inclusion form,improves castability and significantly increases alloy yield. It also reduces clogging of continuous caster nozzles.
The most popular cored wire quality in the steel industry is calcium monosilicide (CaSi). It is mainly produced as 13 mm diameter coil. Other sizes are also available upon request.
Cored wire is inserted quickly with a wire feeder into the molten steel to achieve deoxidation, desulfurization and removal of inclusions. It can help improve metallurgical quality of the steel, shorten smelting time and reduce the cost of casting.
Cored wire has the ability to penetrate deeply into slag and steel. Compared with pure calcium strips, this feature helps in reducing deformation of the steel ladle slag and shortens the time for the calcium to absorb into molten steel. It is a more efficient method of calcium treatment in steelmaking and finds wide applications by many manufacturers. The newest calcium treatment technology with PapCal or HDx cored wire represents State-of-the-art in calcium treatment. It is a highly effective, safe and reliable solution to meet your requirements in the steelmaking process.
The use of calcium cored wire in steelmaking has a great impact on the quality of the deoxidized molten steel. This is because the cored wire can improve oxygenation and deoxidization. It can also help reduce hydrogenation in the molten steel.
In addition, the cored wire can penetrate deeper into the slag layer and have a higher action time than pure calcium. This can greatly shorten the slag melting process. It can also make it easier to separate the molten steel from the impurities.
The cored wire is a new refining method that has been developed in recent years. It has many advantages over powder spraying and direct joining of alloy blocks. It can purify molten steel, change the shape of inclusions, improve castability and mechanical properties, and increase the yield of ferroalloy. It can also significantly reduce the cost of steelmaking. This technology is also environmentally friendly. It has many benefits and is a good choice for modern steelmaking.
Steelmaking Cored Wire is a new treatment in secondary steelmaking developed in recent years, which can purify the shape of inclusions,change the inclusion form,improve the castability of molten steel,and significantly improve the alloy yield and cut down the alloy consumption. It is also propitious to adjust and control the content of easily oxidizable elements and trace elements,improve the use of steel performance.
Compared with the conventional calcium treatment, the cored wire can penetrate deeper into the molten steel and avoid the phenomenon of calcium being absorbed by the slag in the slag-pellet formation phase, thus reducing the time of calcium strip penetration into the molten steel and improving the purity of the liquid steel.
In addition, the cored wire is equipped with a metal calcium pump to guarantee that the real core metal calcium material and air duration of contact are short, not oxidation, not efflorescence, which guarantees the calcareous pureness and the steelmaking process. The new calcium treatments, PapCal and HDx, represent the state of the art for cored wires in steelmaking.
When cored wires first entered the steel industry, they were primarily used to help make it easier for the oxygen to separate from the steel during electric arc furnace and oxy-fuel melting processes. Since then, however, the technology has diversified and evolved to meet many different needs within the industry.
Today, the process uses cold rolled low carbon steel strip as the core material for the calcium cored wire, with a metal powder at its head and tail to form the barrier sections. These are designed to reduce power leakage, avoid oxidation and prevent pollution to molten steel.
Using the new system, steel producers can easily control the amount of calcium that is injected into a ladle, as well as monitor its quality. As a result, they can achieve better standard deviation and thus lower the calcium treatment cost. This makes the new technology a state-of-the-art solution for calcium treatment in the steelmaking process. This is especially true for high-quality steel types that require a strict content control of hydrogen.
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