| abstract |
PROBLEM TO BE SOLVED: To remove PM contained in exhaust gas of a diesel engine such as an automobile, for example, and a filter member capable of reducing pressure loss of exhaust gas passing therethrough while preventing the filter member from being blocked. It is to provide a manufacturing method. A filter member according to the present invention includes a base material having a plurality of meshes made of metal strands having a thickness of 0.05 to 0.5 mm, and a sintering made of metal fine powder formed around the meshes. A metal coarse powder having a layer, a plurality of openings having an opening area of 0.04 to 4.0 mm 2 surrounded by the sintered layer, and a metal coarse powder having a larger particle diameter than the metal fine powder. Are dispersed and attached to the surface of the sintered layer and protrude into the opening space of the opening. [Selection] Figure 1 |