新しい付着抑制表面処理を施した鋼表面への粉体の付着挙動の解析

In this paper, we examined the relationship between surface roughness and particle adhesion behavior by
a proposed experiment. Five kinds of SiO2 spherical powders (0.2μm-2.0μm) and stainless steel plates
with seven kinds of surface roughness were used for the investigation. The adhesion ratios of SiO2
powders to polished stainless steel plates were measured. The adhesion ratios depend on the surface
roughness and the particle diameters. The adhered particles on the steel plate were observed by SEM in
order to examine the adhesion mechanism of SiO2 particle on the polished stainless plate substrate. As
the result, 0.4-1.0 μm particles were easy to adhere independent of surface roughness and nominal
powder diameter. The result indicates that adhesion behavior of powder depends on the adhesion force of
0.4-1.0 μm particles that are changed by the surface roughness of the steel plate.