发明名称 |
ARC start ancillary apparatus |
摘要 |
In an arc start ancillary apparatus, which is connected in parallel to a welding power source for supplying electric power necessary for arc discharge between an electrode and a base metal, for supplying a pulsed electric current in transferring from spark discharge to arc discharge, an object of the present invention is to solve a problem in that arc is not started, and to keep the effective value of current low. A capacitor with a relatively high capacitance is connected to secure a current for transferring from spark discharge to arc discharge, and a D.C. high voltage of a high voltage generator is applied according to a pulse in a period to which the period of pulse signals of a fixed period type high voltage controller is set so that the effective value of the current between an electrode and a base metal is kept low.
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申请公布号 |
US6066831(A) |
申请公布日期 |
2000.05.23 |
申请号 |
US19980128418 |
申请日期 |
1998.08.04 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
IHARA, HIDEKI;INNAMI, TETSU;WANG, JING BO |
分类号 |
B23K9/067;H02M9/00;(IPC1-7):B23K9/067 |
主分类号 |
B23K9/067 |
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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