随烧结温度的增加与时间的延长，多孔钛的孔隙尺寸和孔隙度随之减小，孔隙形状从不规则向规则球形转变。
With increasing sintering temperature and time, the pore size and porosity decrease, and the shape of the pore turns into sphere.
烘干压球机压出的煤球直径为40 mm - 50 mm的扁圆球形、堆集孔隙率大，透风性好。
Drying pressure ball machine pressed briquette diameter 40mm-50mm, heap oblate spherical high porosity, good ventilation.
粗化时间延长，孔隙形状更接近球形。
The shape of pores was close to globularity when the coarsening time was prolonged.
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