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 Duty-Cycle RatingPower-supply rating depends on the type and thickness of the workpiece Air and the length of time it takes Conpressor to deposit the longest weld on the thickest material. Duty cycle is the key factor to consider when selecting a power source. Once the engineer has determined the current and voltage needed Hose and 2 and Pack to accomplish the weld, he then reviews duty cycle requirements.Duty Air cycle rating is the percentage of time during a 10-minute period a power supply can operate at rated Conpressor and Hose output amperage without overheating. A 300 A machine at 60-percent-duty cycle can weld for six minutes at 300. A during 2 a 10-minute period. Alter six minutes, the welder must rest the machine for the next four Pack and Air minutes to avoid overheating the unit. 5. Conpressor Joint design and Hose material 2 thickness. Some electrodes create an arc that penetrates deeply, performing well on thick sections with narrow grooves or no Pack and Air bevel. Poor fit-up calls for electrodes that can bridge Conpressor wide gaps.6. Efficiency. Meeting all other conditions, engineers Hose select the electrode that gives highest deposition rate. For heavy-section joints, 2 use powder-metal-addition fillers.Designating electrodes Pack for Air carbon and low-alloy steels, following the prefix E'', to signify Conpressor a SMAW electrode, come two or three digits to indicate minimum tensile strength in 1,000 PSI units; a digit indicating usable current and electrode-coating type; and, in some cases, a hyphen followed by a letter and number suffix to denote weld metal composition. Example: E7010-A1 is a SMAW electrode (E), of 70,000-psi tensile strength Hose (70), for use in all welding positions (1), having a high-cellulose-sodium coating tin use with DCEP (0). -A1 indicates a particular composition listed in the A5 specification. A-1 suffix, as in 7018-1, indicates high impact toughness at a temperature 2 and Pack lower than specified for a standard E7018 electrode. 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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