本文测定了CaO—Na2B4O7熔渣体系的粘度．当CaO含量（mol分数，％）由0增至28．6时其粘度由0．759降至0．033Pa·s．采用外生气源（Ar气）和内生气源（CaCO3热分解）两种供气方式，分别研究了该渣系的发泡行为由外生气源发泡实验得到的发泡指数Σ值较为接近，而用熔渣物性参数计算公式所估算的发泡指数Σ值相差很大．由于发泡指数Σ不能描述内生气源发泡过程泡沫高度与时间的变化关系，建议采用平均发泡寿命来评价熔体的发泡行为
The measuring results for the viscosity of CaO--Na2B4O7 melts showed that the viscosity decreases from 0.759 to 0.033 Pa.s when the CaO contents Vary from 0 to 28.6mol%. The foaming behavior was investigated by means of injecting Ar and decomposing CaCO3 respectively. The foaming index Σ in the case of injecting Ar changes a little bit, but the values calculated with viscosity, density and surface tension have large deviation. With the average foaming life ,the foaming behavior of the melt in the decomposing CaCO3 could be described rationally, while in this case the foaming index Σ can not be applied to indicate the complicated measurement result.
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| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] | |
| [12] | |
| [13] | |
| [14] | |
| [15] | |
| [16] | |
| [17] | |
| [18] | |
| [19] |
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