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Overview of seamless calcium wire calcium deoxidation technology

Calcium is a strong deoxidizer used in steelmaking so far. In molten steel, calcium has a unique chemical bonding ability with dissolved oxygen and total oxygen in non-metallic inclusions. Calcium treatment can improve the grain size of steel, and at the same time is a very effective means for desulfurization, deoxidation, alloy fine-tuning and control of inclusion morphology in molten steel, especially in improving the castability of aluminum-killed steel molten steel.

The seamless calcium wire ladle feeding technology was used in steel mills in foreign countries in 1970. It has been widely used in international steel companies, especially the rise and rapid development of thin plate continuous casting technology. In 1990, the seamless calcium wire technology patent was introduced in China. The technology of feeding calcium wire into the ladle to treat molten steel with calcium is a widely used feeding technology in the world.