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 Duty-Cycle RatingPower-supply rating depends on the type and thickness of the AirCompresworKitfor45605 workpiece and the length of time it takes to deposit the longest weld on the thickest 6 and AirCompresworKitfor45605 material. Duty cycle is the 6 key factor AirCompresworKitfor45605 to consider when selecting a power source. Once the engineer 6 has determined the current and voltage needed to accomplish the weld, he then reviews duty cycle requirements.Duty cycle rating is the percentage of time during a 10-minute period a power supply can operate at rated output amperage AirCompresworKitfor45605 without overheating. A 300 A machine at 60-percent-duty cycle can weld for six minutes at 300. A during a 10-minute period. Alter six minutes, the welder must rest the machine for the next four minutes 6 to avoid overheating AirCompresworKitfor45605 the unit. Production vs. repair applications In general, production applications 6 require high-duty-cycle power AirCompresworKitfor45605 supplies, and repair applications can use low-duty-cycle portable units.Lift-arc GTAW Many DC power supplies 6 are equipped with a list-start feature for, a variation of scratch starting, GTAW welding. When the welder touches the tungsten electrode AirCompresworKitfor45605 to the workpiece, a small amount of current--15-20 A--flows. When he lifts the electrode from the work, the arc starts softly and the machine switches to the set weld-current 6 value. This low-current starting minimizes AirCompresworKitfor45605 and 6 weld contamination caused by touching the tungsten to the workpiece and eliminates the need for high-frequency starting. Searching for accessories for your air compressor? We offer the best selection of cheap air compressor accessories on the internet. Check out our website for great deales on all of our air compressor accessories!
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