Electric heating – Metal heating – By arc
Patent
1995-10-24
1997-03-11
Shaw, Clifford C.
Electric heating
Metal heating
By arc
219 74, B23K 916
Patent
active
056097824
ABSTRACT:
A shielding gas pre-flow time control system for a gas metal arc welder for generating an arc simultaneously with the turning on of a torch switch for directing a torch to a normal position while maintaining a sufficient pre-flow time of shielding gas for more than one (1) second. The gas metal arc welder includes a welding power source, a wire feeding device and a welding torch in which, when the torch switch is firstly turned on, only the shielding gas solenoid valve is activated to cause the shielding gas solenoid valve is actuated to cause the shielding gas to be pre-flowed. When the switch is secondly turned on, during the pre-flow time, the wire feeding device is operated and simultaneously a voltage is applied to the wire being fed and an arc is generated so as to start the welding. When the torch switch is turned off, wire feeding device is stopped, the shielding gas feed is stopped and the welding arc is stopped, all at the same time.
REFERENCES:
patent: 3617681 (1971-11-01), Dyson
patent: 3662147 (1972-05-01), Ogden, Sr. et al.
patent: 4100390 (1978-07-01), Jackson
patent: 4531045 (1985-07-01), Kemp
Hyundai Heavy Industries Co., Ltd.
Shaw Clifford C.
LandOfFree
Shielding gas pre-flow time control system for gas metal arc wel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shielding gas pre-flow time control system for gas metal arc wel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shielding gas pre-flow time control system for gas metal arc wel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-440737