Patent ID: 6436580
Filing Date: 2002-08-20
Classification: B22F,H01M,Y02E

Abstract:
The porous metal sheet manufactured by a method comprising the steps of:spreading metal powders on a feeding belt which is continuously fed; passing the feeding belt on which the metal powders have been spread through a sintering oven; and sintering the metal powders, with adjacent uncompressed metal powders in contact with each other partly and gaps present therebetween so as to integrate contact portions of the metal powders with each other and form the gaps as fine pores, wherein a sheet having concave and convex alternating surfaces or patterns is used as the feeding belt so that metal powders which have been spread on the convexes are dropped to the concaves by vibrating the metal powders or by a scraping means and then sintered in a sintering oven so as to form fine pores between the adjacent metal powders and pores consisting of large through-holes corresponding to the convexes.