连铸结晶器保护渣结晶温度

Crystallization Temperature of Continuous Casting Mold Fluxes

实验采用ＷＣＴ－２型微机差热天平，用来研究了保护渣的化学组成和冷却速率对其结晶温度的影响．结果表明：（１）在实验条件下，碱度升高，保护渣的结晶温度先升高后降低；（２）Ｆ－含量增加，保护渣的结晶温度提高；（３）随着 Ｎａ２Ｏ， Ａｌ２Ｏ３， ＭｇＯ含量的增加，保护渣的结晶温度下降；（４）保护渣的结晶温度随冷却速率的增加略有下降．

The influences of chemical compositions and cooling rate on the crystallization temperature of mold fluxes were studied with WCT-2 DTA. Under the experiment conditions, the crystallization temperature increases with the increase of basicity and then decreases; the crystallization temperature increases with F contend and decreases with the enrichment of Na2O, Al2O3, MgO. Increasing cooling rate, the crystallization temperature is reduced slightly.