Title:
METHOD OF MANUFACTURING GAS SENSOR, AND GAS SENSOR
Document Type and Number:
WIPO Patent Application WO/2010/100851
Kind Code:
A1
Abstract:
Anti-corrosion characteristics of the welded portion between a main body fitting and an outer tube are improved. A staked section (90) is subjected to laser welding by which a laser beam is applied in the circumferential direction to the entire circumference of a metallic outer tube (16). By this, a main body fitting (11) and the metallic outer tube (16) are joined together by the laser welding and a welded section (100) is formed. Because the laser welding is applied to multiple portions (two portions) displaced from each other in the axis (O) direction so that the portions are located at different positions in the axis (O) direction, the welded section (100) comprises a front end welded section (110) and a rear end welded section (120).
Inventors:
KATOU HIDEKAZU (JP)
TAGUCHI MASATAKA (JP)
FUJITA YASUHIRO (JP)
ATSUMI TAKAYOSHI (JP)
TAGUCHI MASATAKA (JP)
FUJITA YASUHIRO (JP)
ATSUMI TAKAYOSHI (JP)
Application Number:
PCT/JP2010/001119
Publication Date:
September 10, 2010
Filing Date:
February 22, 2010
Export Citation:
Assignee:
NGK SPARK PLUG CO (JP)
KATOU HIDEKAZU (JP)
TAGUCHI MASATAKA (JP)
FUJITA YASUHIRO (JP)
ATSUMI TAKAYOSHI (JP)
KATOU HIDEKAZU (JP)
TAGUCHI MASATAKA (JP)
FUJITA YASUHIRO (JP)
ATSUMI TAKAYOSHI (JP)
International Classes:
G01N27/409; B23K26/00; B23K26/21
Foreign References:
| JP2004354274A | 2004-12-16 | |||
| JP2003344355A | 2003-12-03 | |||
| JP2008304449A | 2008-12-18 | |||
| JPH11337513A | 1999-12-10 | |||
| JP2002050448A | 2002-02-15 |
Attorney, Agent or Firm:
AOKI, Noboru et al. (JP)
Noboru Aoki (JP)
Noboru Aoki (JP)
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