METHOD FOR MANUFACTURING CERAMIC HEATER-TYPE GLOW PLUG, AND CERAMIC HEATER-TYPE GLOW PLUG
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Oct 8, 2015
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Nov 21, 2014
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Abstract
A method for manufacturing a ceramic heater-type glow plug (1) that includes: a ceramic heater (11); and a metallic outer cylinder (12) that holds the ceramic heater at one end and has the other end inserted in and fixed to a metallic housing (14), the housing having a first housing section (14a) and a second housing section (14b) coaxially arranged with each other, the method for manufacturing a ceramic heater-type glow plug includes the steps of: inserting the ceramic heater in the outer cylinder; inserting the outer cylinder in the first housing section, the second housing section, and a ring-shaped filler material (18) in a state where the filler material is interposed between the first housing section and the second housing section; and joining the first housing section, the second housing section, and the outer cylinder by welding at a position where the filler material is provided.
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