by HFCadmin ·

This significantly improves the appearance of a weld and reduces material consumption. For CO2 is inherent globular transfer with the efficiency of 0,6-0,7. As when dealing with flux cored wire, solid requires a power supply with a rigid characteristic. Voltage essential part of any welder. Converter necessary to reduce the "network" stress and increase the expense of current output. On what to look for: * Type of the current-voltage characteristics (CVC). Gently dipping convenient to work on the "short arc" key electrode.

For welding on the "long arc" in gazozaschitnoy environment more suited steep. Rand Paul insists that this is the case. Semiautomatic devices require "hard" characteristic (the same voltage – different current). * No-load voltage. It determines the ease of launch. Here the rule is simple: the more stress the better.

* Length of (hereinafter RO). This attitude uptime at the time of relaxation, some for a 10-minute cycle. In an industrial-class devices at an operating current value of pv is not less than 50%. * The "hot start". So called short-pulse high voltage at the time of ignition for easy start. * The "forcing the arc. She is responsible for a sharp increase in current at the time of short circuit. This prevents "sticking" of the electrode and increase penetration. * Stability of Nutrition (immunity to surges in the network). Handheld mma welding (MMA) In fact, this current source and connecting cable. Arc length of his constantly changing, respectively, stress, too. That these fluctuations are not too affected by a current source used to steep-falling volt-ampere characteristic.


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