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公开(公告)号：EP2551376A4
公开(公告)日：2014-04-02
申请号：EP11759588
申请日：2011-03-25
发明人： MORISADA YOSHIAKI , FUKUZUMI MASAO , NAGAOKA TORU , MIZUNO TADASHI , ABE GENRYU , FUJII HIDETOSHI
CPC分类号： C23C24/08 , B23K20/12 , B23K20/122 , B23K20/1275 , B23K20/128 , B23K26/14 , B23K26/144 , B23K26/1476 , B23K26/342 , B23K31/025 , B23K35/0244 , B23K35/327 , B23K2201/06 , B23K2201/20 , B23K2201/34 , C23C24/103 , Y10T428/31678
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公开(公告)号：EP2656958A4
公开(公告)日：2017-07-26
申请号：EP11849920
申请日：2011-12-14
IPC分类号： B23K20/12
CPC分类号： B23K20/1245 , B23K20/1255
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公开(公告)号：EP2656960A4
公开(公告)日：2017-08-30
申请号：EP11852130
申请日：2011-12-14
IPC分类号： B23K20/12 , B23K101/00 , B23K103/04 , B23K103/10
CPC分类号： B23K20/1255 , B23K2201/006 , B23K2203/04 , B23K2203/10
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公开(公告)号：EP2656959A4
公开(公告)日：2017-07-26
申请号：EP11850199
申请日：2011-12-14
IPC分类号： B23K20/12
CPC分类号： B23K20/1255
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公开(公告)号：EP2848352A4
公开(公告)日：2016-05-25
申请号：EP13787442
申请日：2013-04-11
申请人： UNIV OSAKA
发明人： FUJII HIDETOSHI , MORISADA YOSHIAKI
IPC分类号： B23K9/29 , B23K9/167 , B23K9/173 , B23K9/32 , B23K10/02 , B23K26/14 , B23K26/20 , B23K103/02
CPC分类号： B23K9/325 , B23K9/167 , B23K9/173 , B23K10/02 , B23K26/1464 , B23K2203/02
摘要： A welding method in which an inert gas is supplied to the surface of an iron material from inside a cylindrical welding nozzle, and the surface of the iron material to which the inert gas is being supplied by the welding nozzle is heated, wherein oxygen in the atmosphere sucked by a drop in atmospheric pressure caused by the flow of the inert gas is introduced into a molten pool produced in the surface of the iron material. Consequently, it is possible to make the depth of penetration of the molten pool deeper by introducing oxygen into the molten pool and increase welding efficiency without preparing an additional oxygen supply source as in dual shield TIG welding.
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