Pure Calcium Cored Wire Distribution can be used to treat molten iron and improve the desulfurization and inclusion control. It is made by encapsulating a powdered calcium metal alloy or granules in a sheath of steel and then winding them on a low carbon cold rolled wire to create a cored cable.
The sheaths being welded together reduces the oxidation burning loss and increases calcium absorption in molten steel. It also allows cored wires to be used in higher temperatures than with other forms of calcium treatment. In addition, sheaths with a lower nickel content allow more than twice as much calcium to be injected into the molten steel as sheaths with a higher nickel content.
Because of its high oxygen affinity and low boiling point, calcium has a very good deoxidizer and desulfurizer effect. When it is added to molten steel, it will quickly form calcium oxide (CaO), oxysulfides CaS, and calcium sulfide (CaS) in the molten steel. This will significantly reduce the total oxygen and sulfur contents in the molten steel and improve the quality of the cast iron. It can also reduce the clogging caused by alumina inclusions (AL2O3) in the molten metal and other oxides.
In addition, the encapsulated calcium metal has a very low nitrogen content, which greatly decreases the gas emitted from the melting process. This improves not only the safety but also reduces environmental pollution and energy consumption. It can also increase the capacity of molten steel production.
Compared to traditional addition methods, calcium silicon cored wire has many advantages: 1. It is easy to use. It can be easily fed into the molten alloy by using the frictional force between the core and the sheath. This will reduce the workload of workers and increase the efficiency of production.
2. It is more easily inspectable and has a much smaller surface area. Cored-wires with a small core sheath are smaller and have a lower surface area. This allows for easier inspection of the purity of the wire. This can help to eliminate many defects in the molten iron, thus improving the quality.
3. It can be used to prevent the hydrogenation in molten steel. Cored wires can reduce the hydrogen in molten metal and prevent the formation or oxidation residues. This is good for the organization of production and raw material management.
4. It has a longer storage period and can be safely stored for a long time. Because of the smaller core sheath, sheath-cored wires have a much longer storage period than other types of calcium cored wires. This greatly reduces the oxidation of the core and ensures that it can be safely stored.
Jiangyin Yurui Metallurgical Materials Co., Ltd is a professional manufacturer of alloy cored wire and aluminum products. It uses advanced metal forming mechanics and metallurgy based on the latest technology, and it has been certified to ISO 9001-2015 quality management system. We have a long history in steel production and can produce a wide range of alloy cored cables according to customer requirements.
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