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1. (WO2018123379) GAS GENERATOR, GAS GENERATOR PLUG, AND METHOD FOR MANUFACTURING GAS GENERATOR PLUG

Pub. No.:    WO/2018/123379    International Application No.:    PCT/JP2017/042208
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Nov 25 00:59:59 CET 2017
IPC: B01J 7/00
B21D 39/00
B21J 5/02
B21J 5/08
B21J 13/02
B60R 21/264
F42B 3/12
Applicants: NIPPON KAYAKU KABUSHIKI KAISHA
日本化薬株式会社
Inventors: HAGIHARA, Daisuke
萩原 大介
IIZUKA, Genya
飯塚 玄弥
Title: GAS GENERATOR, GAS GENERATOR PLUG, AND METHOD FOR MANUFACTURING GAS GENERATOR PLUG
Abstract:
A gas generator is provided with: a long cylindrical housing body; and a plug (30A) for closing the end of the housing body in the axial direction. The plug (30A) has: a substantially columnar body section (31) comprising a substantially discoid metal member; a first flange section (33) positioned at a first end surface (30a) side; and a second flange section (34) positioned at a second end surface (30b) side. An annular groove section (32), which is defined by the body section (31), the first flange section (33), and the second flange section (34), is positioned on the circumferential surface (30c) of the plug (30A). The grain flow (MF) of the portion appearing on the surface layer of the circumferential surface (30c) of the plug (30), including the surface of the annular groove section (32), extends continuously along the circumferential surface (30c) from the first end face (30a) so as to reach to the second end face (30b) without being segmented on the circumferential surface (30c).