发明授权
- 专利标题： Alternating-current welding method and alternating-current welding device
- 专利标题（中）： 交流焊接方法和交流焊接装置
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申请号： US13387136申请日： 2011-02-15
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公开(公告)号： US09162307B2公开(公告)日： 2015-10-20
- 发明人: Yoshiaki Tanaka , Masafumi Naruto , Yoshiyuki Tabata , Norikazu Oosaki
- 申请人： Yoshiaki Tanaka , Masafumi Naruto , Yoshiyuki Tabata , Norikazu Oosaki
- 申请人地址： JP Osaka
- 专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： RatnerPrestia
- 优先权： JP2010-036797 20100223
- 国际申请： PCT/JP2011/000818 WO 20110215
- 国际公布： WO2011/105022 WO 20110901
- 主分类号： B23K9/10
- IPC分类号： B23K9/10 ; B23K9/067 ; B23K9/073 ; B23K9/095 ; B23K9/23
摘要：
If arc interruption occurs during AC arc welding, a first AC frequency predetermined for normal welding is switched to a second AC frequency higher than the first AC frequency. This allows the arc to be reignited without applying a high frequency high voltage, thereby preventing the damage of the surface of the weld bead or communication failure due to the high frequency high voltage.