发明名称 |
ALTERNATING-CURRENT WELDING METHOD AND ALTERNATING-CURRENT WELDING DEVICE |
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. |
申请公布号 |
US2012118866(A1) |
申请公布日期 |
2012.05.17 |
申请号 |
US201113387136 |
申请日期 |
2011.02.15 |
申请人 |
TANAKA YOSHIAKI;NARUTO MASAFUMI;TABATA YOSHIYUKI;OOSAKI NORIKAZU;PANASONIC CORPORATION |
发明人 |
TANAKA YOSHIAKI;NARUTO MASAFUMI;TABATA YOSHIYUKI;OOSAKI NORIKAZU |
分类号 |
B23K9/073;B23K9/095;B23K9/10 |
主分类号 |
B23K9/073 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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