porous slag

Oxide inclusion defects can be divided into: beehive-like slag-holes beneath the skin, inclusions in the surface layer, agglomerated inclusions in castings after machining, local penetrated porous inclusions etc.

氧化夹渣缺陷可分为皮下蜂窝状渣孔，整个断口上的夹渣，麦面氧化夹渣层，加工后铸件中成团簇的夹渣和局部穿透的疏松夹渣等缺陷。

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The porous slag is as a result of reactant to generate gas, and the speed of the foam to float was less than the speed to generate gas, and same time the Ti-bearing slag solidified quickly to froze the foam in slag.

多孔凝渣层的形成是由于反应物质产生气体，气体上浮逸出的速度小于气体生成的速度，以及渣急速冷却凝固，使部分气泡冷冻存留在凝渣中。

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Large scale application of this SEN shows that the unique thermal conduct and crack propagation properties of porous layer remarkably increase the thermal-shock resistance of the SEN, and the doping of fine powders of Al2O3 in the slag-line enhances the erosion resistance of the SEN.

现场大批量应用的结果表明，利用多孔材料特殊的热传导特性、裂纹扩展特性以及超细粉末的表面性质，显著增强了FTSC薄板坯连铸浸入式水口的抗热震性能和抗渣侵性能。

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