Patent ID: 8394157
Filing Date: 2013-03-12
Classification: B01D

Abstract:
1. A filter for a gas generator, comprising: a single metal wire comprising a core wire of iron and a coating layer of copper, the coating layer of copper being molten and plated on the core wire, the single metal wire being wound into a tubular shape having intersecting parts of the single metal wire, wherein thickness of the coating layer on the core is from 0.5 μm to 10 μm, and at each of the intersecting parts of the single metal wire, adjacent parts of the core are firmly fixed each other via the coating layer, wherein the thickness of the coating layer at the intersecting parts is thicker than the remaining portion of the single metal wire, and the adjacent parts of the core are firmly fixed each other by melting all of the coating layer of copper and infiltrating the molten copper into gaps of the intersecting parts, so that the molten copper adheres to the surface of the intersecting parts, wherein the melting is performed at a temperature below the sintering temperature for the core wire of iron.