JPS5327743A - Method of forming and processing groove structure at tip of igniting section of center electrode of ignition plug - Google Patents

Method of forming and processing groove structure at tip of igniting section of center electrode of ignition plug

Info

Publication number
JPS5327743A
JPS5327743A JP10053176A JP10053176A JPS5327743A JP S5327743 A JPS5327743 A JP S5327743A JP 10053176 A JP10053176 A JP 10053176A JP 10053176 A JP10053176 A JP 10053176A JP S5327743 A JPS5327743 A JP S5327743A
Authority
JP
Japan
Prior art keywords
forming
groove structure
center electrode
tip
ignition plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10053176A
Other languages
Japanese (ja)
Inventor
Kazuma Arimura
Katsuhiko Kikuchi
Toshio Eguchi
Mitsumasa Yamaya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10053176A priority Critical patent/JPS5327743A/en
Publication of JPS5327743A publication Critical patent/JPS5327743A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To simplify the method of processing the groove structure by pre-forming the grooves in the tip face constituting the igniting section of a center electrode material with a female mold having a pole formation holes and finishing the grooves by forging.
COPYRIGHT: (C)1978,JPO&Japio
JP10053176A 1976-08-25 1976-08-25 Method of forming and processing groove structure at tip of igniting section of center electrode of ignition plug Pending JPS5327743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10053176A JPS5327743A (en) 1976-08-25 1976-08-25 Method of forming and processing groove structure at tip of igniting section of center electrode of ignition plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10053176A JPS5327743A (en) 1976-08-25 1976-08-25 Method of forming and processing groove structure at tip of igniting section of center electrode of ignition plug

Publications (1)

Publication Number Publication Date
JPS5327743A true JPS5327743A (en) 1978-03-15

Family

ID=14276534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10053176A Pending JPS5327743A (en) 1976-08-25 1976-08-25 Method of forming and processing groove structure at tip of igniting section of center electrode of ignition plug

Country Status (1)

Country Link
JP (1) JPS5327743A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62141087A (en) * 1985-12-17 1987-06-24 Nichiban Co Ltd Shielding adhesive material
US5527198A (en) * 1994-02-08 1996-06-18 General Motors Corporation High efficiency, extended life spark plug having shaped firing tips
DE102004032723B4 (en) * 2004-07-07 2017-11-02 Robert Bosch Gmbh spark plug

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62141087A (en) * 1985-12-17 1987-06-24 Nichiban Co Ltd Shielding adhesive material
JPH0623346B2 (en) * 1985-12-17 1994-03-30 ニチバン株式会社 Shielding adhesive
US5527198A (en) * 1994-02-08 1996-06-18 General Motors Corporation High efficiency, extended life spark plug having shaped firing tips
DE102004032723B4 (en) * 2004-07-07 2017-11-02 Robert Bosch Gmbh spark plug

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