CAJ | 학술논문

　　以气雾化316L 不锈钢球形粉末为原料，通过压制、烧结工艺制备多孔过滤材料。在烧结温度、保温时间等其他制备工艺参数一定的情况下，着重分析粉末粒径、压制压力对多孔材料孔隙度、最大孔径和透过性能的影响规律，建立其相互关系方程。结果表明：多孔材料孔隙度主要受压制压力的影响，随压制压力的增大而减小，孔隙度的1.9倍与压制压力的平方根呈指数关系。相比于压制压力，多孔材料的最大孔径主要受粉末粒径的影响，随粉末粒径的增大而增大，两者之间呈线性关系；多孔材料的相对透气系数受粉末粒径和孔隙度的共同影响。在孔隙度一定的情况下，相对透气系数与粉末粒径的平方呈线性关系。
　　이기무화316L 불수강구형분말위원료，통과압제、소결공예제비다공과려재료。재소결온도、보온시간등기타제비공예삼수일정적정황하，착중분석분말립경、압제압력대다공재료공극도、최대공경화투과성능적영향규률，건립기상호관계방정。결과표명：다공재료공극도주요수압제압력적영향，수압제압력적증대이감소，공극도적1.9배여압제압력적평방근정지수관계。상비우압제압력，다공재료적최대공경주요수분말립경적영향，수분말립경적증대이증대，량자지간정선성관계；다공재료적상대투기계수수분말립경화공극도적공동영향。재공극도일정적정황하，상대투기계수여분말립경적평방정선성관계。
Using air atomized spherical 316L stainless steel powders as raw materials, the porous filter material was prepared by molding pressing and sintering. The effects of powder size and molding pressure on the porosity, maximum pore diameter and permeability of porous materials in the same sintering process were studied, and the relationships between these fabrication factors were established. The results show that the porosity is mostly influenced by press pressure rather than powder size. The porosity decreases with increasing molding pressure. It is demonstrated that the square root of molding pressure and 1.9 times of porosity have an exponential relationship. In contrast to molding pressure, the maximum pore size of porous materials is mostly influenced by powder size and they are demonstrated to have a linear relationship. The permeability of porous materials is influenced by powder size and porosity. When porosity is determined, the permeability and the square of particle size are demonstrated to have a linear relationship.