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利用“毛细管束模型”理论推导出不锈钢纤维烧结毡的中流量平均孔径和最大孔径与纤维直径Ｄ和孔隙率Ｅ的理论方程，并在此基础上，通过大量试验数据的处理，推导出中流量平均孔径和最大孔径的经验方程，ｄ＝６．１５·Ｄ·Ｅ３．３５，ｄｍａｘ＝Ｅ２．０６（１４．５３Ｄ－１１．３６）。文中还论述了纤维层数ｔ／Ｄ对最大孔径的影响，要得到均匀的高质量纤维毡，应适当加大纤维毡单重。
Using the theory of “capillary beam model”, the theoretical equation of average flow pore size, maximum pore size, fiber diameter D and porosity E of stainless steel fiber sintered felt was deduced. Based on this, a large amount of experimental data was deduced to derive the medium flow rate The empirical equation of mean pore size and maximum pore size, d = 6.15 · D · E3.35, dmax = E2.06 (14.53D-11.36). The paper also discusses the effect of the number of layers t / D on the maximum pore size. To obtain a uniform high-quality fiber mat, the single weight of the fiber mat should be appropriately increased.