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US 6,605,165 B2Granted
Method of manufacturing discharge wire
AssigneeCanon Kabushiki Kaisha
InventorsTsuyoshi Kunishi, Nobuhiro Hayashi, Toru Kabashima
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Abstract
A discharge wire usable in an electrification device includes a tungsten wire subjected to mirror finish processing and an oxidized layer formed by heating the surface of the tungsten wire at a temperature in the range 400 to 600° C., wherein the film has a thickness in the range of 0.01 to 0.3 μm.
Claims6
A method of manufacturing a discharge wire comprising the steps of:
- preparing a tungsten wire;
- mirror polishing a surface of the wire;
- and
- forming an oxidized layer on the surface of the mirror-polished wire by heating the mirror-polished wire at a temperature in a range of 400° to 600° C.,
- wherein a thickness of the oxidized layer is in the range of 0.01 to 0.3 μm.
2 more elements
A method of manufacturing a discharge wire comprising the steps of:
- preparing a tungsten wire;
- mirror polishing a surface of the wire;
- and
- forming an oxidized layer on the surface of the mirror-polished wire by heating the mirror-polished wire at a temperature in a range of 400°to 600° C.,
- wherein a heating time for forming the oxidized layer is 10 seconds or less.
2 more elements
Dependencies are inferred from the claim text.