氧化钙坩埚使用温度高，热抗震性好，热稳定性好，除氧除硫效果最佳，耐碱性炉渣侵蚀。

Calcium oxide crucibles have high operating temperatures, excellent thermal shock resistance, and good thermal stability. They are highly effective in deoxygenation and desulfurization and resist erosion by alkaline slag.