Patent ID: 7121558
Filing Date: 2006-10-17
Classification: B29C,B29K,B29L,H01M,Y02E,Y02P

Abstract:
1. A method for fabricating a gasket for fuel cells, comprising the steps of: grinding two kinds of rubbers having different hardness into a first and a second rubber powders each having a certain average size; mixing the ground rubber powders with a liquid rubber; spraying the mixed liquid rubber onto a surface of a rigid plate moving through a container based on a spray method in order for the mixed liquid rubber to be coated on the surface of the rigid plate uniformly; vulcanizing the rigid plate on which the first rubber powder and the second rubber powder are coated; and cutting the rigid plate on which the vulcanized first and second rubber powder are coated; wherein said first rubber powder comprises a material having a hardness of Shore A 25˜50 (HS) and a diameter of 0.15˜0.3 mm, and said second rubber powder comprises a material having a hardness of Shore A 60˜80 (HS) and a diameter of 0.1˜0.15 mm.