Pure Calcium Wire and Cored Wire Benefits in Steelmaking

Pure Calcium Wire Benefits

In steelmaking, the injection of calcium-based alloys is very important for the deoxidation and desulfurization of the molten steel. This can be done either by spraying the alloys into molten iron or by feeding them in by wire core. In foreign steel mills, the latter method is widely used because it's a highly efficient way of adding these metals. However, its application in China has been limited by the limited availability of cored wire production equipment.

Steelmaking cored wire is made up of a material that's crushed down to the size desired, then covered with a strip of low-carbon cold-rolled metal. Composite wires of any length can be injected directly into the steel molten through cored wire feed units. The new method is more efficient than adding calcium directly to the steel or spraying it in, as the calcium can be recovered more easily and the calcium amount added more precisely.

As well as the benefits of using calcium cored steel wire in metallurgy, it also offers economic advantages. For example, this product reduces the amount of energy used and enhances the quality. It is also very environmentally friendly, as it reduces the amount of air pollution produced during the re-melting process. In addition, the use of the product can help reduce costs associated with the treatment of molten steel by removing excess oxygen and sulphur from the melt.

Pure Calcium cored Wires Benefits

A pure calcium cored iron wire penetrates the layer of slag easier in the melting process and can reach bottom of the ladle faster than a conventionally coated calcium iron. In addition, the use of cored wires can reduce the amount of pure calcium consumed and improve the performance of molten metal. The cored wires also make it easy to regulate the temperature and reduce slag blockage during casting.

The sheath thickness of the cored wire is usually 0.4 mm. The sheaths are made in different ways. Max-Cal cored steel wires have a welding technology that offers better performance. Welded sheaths remove oxygen and sulfur excess from molten steel. This is important to avoid slag obstruction during casting. The welded sheaths also resist corrosion and are easier to clean. As a result, the cost of using pure calcium cored wire is lower than that of other types of calcium-containing cored wires. It is therefore a very economical option for refining molten iron.

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