Filter for gas generator
First Claim
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, whereinthickness of the coating layer on the core is from 0.5 μ
m to 10 μ
m, andat each of the intersecting parts of the single metal wire, adjacent parts of the core are firmly fixed each other via the coating layer, whereinthe thickness of the coating layer at the intersecting parts is thicker than the remaining portion of the single metal wire, andthe 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.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of manufacturing a filter for a gas generator, by which a filter having a good shape retaining property can be obtained, is provided. A method of manufacturing a filter for a gas generator in which a tubular material is formed by knitting copper-plated iron wires, molten plated copper is adhered to an intersecting portion of the iron wire to fix the intersecting portion, wherein the method comprises a molding step for producing a tubular material by knitting the copper-plated iron wires, and a heat processing step in which the above tubular material is kept at a temperature not less than a melting point of copper but less than the temperature of sintering of the iron, and is then cooled.
24 Citations
6 Claims
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1. A filter for a gas generator, comprising:
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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 μ
m to 10 μ
m, andat 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. - View Dependent Claims (2, 3)
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4. A method of making a filter for a gas generator, comprising:
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winding a single metal wire being into a tubular shape having intersecting parts of the single metal wire, wherein the single metal wire comprises a core wire of iron and a coating layer of copper, the coating layer of copper being molten and plated on the core wire, a thickness of the coating layer on the core is from 0.5 μ
m to 10 μ
m, whereinadjacent parts of the core are firmly fixed to 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 iron core, and wherein the filer is formed so that 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. - View Dependent Claims (5, 6)
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Specification