POWDER ADHESION SUPPRESSION MEMBER AND MEMBER SURFACE TREATMENT METHOD

• Main Authors: SHIMODAIRA EIJI, KUMAGAI MASAO, OGIWARA HIDEMI, ARAI MASAHIKO, KODAMA TOMOKO
• Format: Patent
• Language: English; Japanese
• Published: 27.12.2021
• Subjects: ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL; GRINDING; PERFORMING OPERATIONS; POLISHING; TRANSPORTING

To provide a powder adhesion suppression member having composite dimples that can suppress adhesion of powders, in particular, even powders to which an oil content or a water content, that contains a substance having a particle size of 1 μm or less, is adhered, to a surface contacting the powders.SOLUTION: In a powder adhesion suppression member, on at least a surface of an area thereof contacting powders, a large irregularity, which comprises a dimple-shaped recess having a relatively large size and innumerable ridge-shaped protrusions formed unevenly around the recess, is formed, and thereafter, a minute irregularity, which comprise a dimple-shaped recess and innumerable ridge-shaped protrusions formed unevenly around the recess that are smaller than the recess and protrusions, is formed on the large irregularity.SELECTED DRAWING: Figure 4 【課題】 粉体、特に、粒子サイズ１μｍ以下のものが含まれるような油分や水分が付着した粉体に対しても、粉体と接触する表面への付着を抑制できる複合ディンプルを有する粉体付着抑制部材を提供する。【解決手段】本発明に係る粉体付着抑制部材は、少なくとも粉体と接触する領域の表面に、比較的大きなサイズのディンプル状の凹部とその周辺に稜線状の凸部を不均一に無数に形成した大凹凸を形成した後、その大凹凸の上にそれらよりも微小なディンプル状の凹部とその周辺に稜線状の凸部を不均一に無数に形成した微小凹凸を形成したことを特徴とする。【選択図】図４