结晶器保护渣对铸坯质量、润滑、传热等起着重要的作用。故用黏度不适合的保护渣不仅影响铸坯质量,而且会造成拉漏。实践表明,为了控制熔化速度,混有碳的保护渣,其测量的黏度值与实际的有差别。保护渣黏度的变化与碳有关。不含碳的保护渣的黏度比较稳定,而含碳的保护渣碳燃烧后 Mold powder on the slab quality, lubrication, heat transfer plays an important role. Therefore, the viscosity is not suitable for mold powder not only affects the quality of slab, but also lead to leakage. Practice shows that, in order to control the melting speed, mixed with carbon mold flux, the measured viscosity value and the actual difference. Variations in mold flux correlate with carbon. The viscosity of the carbon-free mold fluxes is relatively stable, while the carbon-containing mold flux carbon burns