Title:
プラズマアーク溶接のアークスタート制御方法
Document Type and Number:
Japanese Patent JP6796361
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To generate a main arc surely, even when stand-off is long, in plasma arc weldment; and to improve weld quality at a welding start time.SOLUTION: An arc start control method of plasma arc weldment for generating a main arc Cm, when plasma gas Fp is sent, a pilot arc is generated, and a start signal Om is outputted, includes a first step for increasing with inclination, a flow rate Fp of the plasma gas, when the start signal Om is outputted, and a second step for changing the flow rate Fp of the plasma gas into a steady state value determined beforehand, when the main arc Cm is generated.SELECTED DRAWING: Figure 2
Inventors:
Daisuke Mori
Application Number:
JP2016224621A
Publication Date:
December 09, 2020
Filing Date:
November 18, 2016
Export Citation:
Assignee:
Daihen Co., Ltd.
International Classes:
B23K10/00
Domestic Patent References:
| JP61082975A | ||||
| JP5104251A | ||||
| JP2003053548A | ||||
| JP59202168A |
Foreign References:
| WO2011070819A1 |