董方, 王艺慈, 王宝峰. An Analysis on Solidified Film Structure and Mineralogical Phase of Mould Powder for Compact Strip Production[J]. Special Steel, 2006, 27(1): 21-23.
董方, 王艺慈, 王宝峰. An Analysis on Solidified Film Structure and Mineralogical Phase of Mould Powder for Compact Strip Production[J]. Special Steel, 2006, 27(1): 21-23.DOI:
mineralogical phase and crystallization rate of 1537 mm×67 mm mould pow- der(34.6CaO
28.6SiQ₂
8.8C
8.5F
8.6Na₂O)for Compact Strip Production(CSP)have been studied by optical and scanning electron microscope and X-ray diffraction analysis. The results showed that most of the solidified flux films had three layers with total thickness 0.6~1.3 mm:crystallizing layer - glassy layer - crystallizing layer
of which the thickness of crystallizing layer at the side near mould was 0.10~0.14 mm; the crystallization rate of CSP solidified flux film was 40% ~80%
and the crystallized mineralogical phases were cuspidine(3CaO ·2SiO₂ ·CaF₂)and mineralogical phase Na₂O · Al₂O₃ · SiO₂ .The thermal transformation shall be controlled by adjusting the thickness of solidified flux film and crystallization rate of cuspidine in the film to increase the surface quality of concasting slab