Ferrocalcium cored wire is usually used for calcium improvement and reinforcement. It is an efficient and final refining technology for steelmaking and casting, it can be used for deoxidation, desulfurization, inclusion deformation, promote inclusion flotation, purify molten steel and improve molten steel pouring, etc. Increasing the silicon content of molten steel, at the same time, it has outstanding advantages such as reducing production cost, improving economic benefits and environmental protection.
The main materials of ferrocalcium cored wire are as follows:
1. Calcium metal granules, always use electrolytic calcium (calcium is obtained from the electrolysis of CaCl2, called electrolytic calcium), it is in the form of granules, packed in iron drums lined with sealed plastic bags filled with argon.
2. Ferro powder, always choose the second refined reduced iron powder, with the iron content of more than 98%, sulfur and phosphorus content of less than 0.03%, silicon content of less than 0.25%, and moisture content of less than 0.5%.
3. Steel strip coating, always adopt cold rolled plate in flat form, the thickness is 0.4~0.43mm, the width is 54~56mm.
High-quality ferrocalcium cord wire requires no powder leakage, no cracks, no folding varnish, no virtual package, no empty package, the wrapped powder has uniform density and smooth surface without oil. Generally in diameter 13mm, and the packaging generally uses steel belt with waterproof plastic film and iron holding cage.
Ferrocalcium powder-cored flux cored wire is widely used in the ladle refining process, it is a certain amount of powder additive package (oxidizer, desulfurization agent, alloy) wrapped into a thin strip of continuous formation of a linear material, pulverized and wound into a coil. According to different core powder, the characteristics and applications of powder-cored flux cored wire are different.
Applications of ferrocalcium powder cored wire
It is mainly used in steelmaking, which can purify the shape of steel inclusions, play the role of pure molten steel, and to some extent change the nature and shape of the components, improve the quality of molten steel, improve the casting state, improve the castability. Steel and improve the use of steel performance, and can significantly improve the performance of the alloy, reduce alloy consumption, reduce steelmaking costs.
Since Cored Wire is easy to oxidize to adjust and control the content of trace elements and elements, it can greatly improve the performance of the alloy, reduce the melting cost, shorten the melting time, and precisely control the composition.
