P.I.T. PMIG220-C [6/32] Arc welding current setting

P.I.T. PMIG220-C [6/32] Arc welding current setting
5
AUTOMATIC WELDING MACHINE

Содержание

AUTOMATIC WELDING MACHINE Arc welding current setting Set the arc welding current after the above preparations Short time short circuit is mainly suitable for wire with a diameter of 1 0 1 6 nun and this phenomenon occurs in the conditions of lite gage electrodes low voltage and low current At this time it is possible to ensure stable welding small sputtering and beautiful weld bead Set the arc welding current according to the picture below For different operating conditions see the welding parameters table section of this manual Short time short circuit current Wire diameter mm Applied current A Optimum current A 0 8 50 120 70 100 1 0 70 180 80 120 1 2 80 350 100 200 1 6 140 500 140 350 Welding speed selection When selecting the welding speed the quality and performance of the welding should be taken into account With the increase of speed of welding weakens the protection effect and accelerates the cooling As a result this does not contribute to the formation of the weld bead If the speed is too low the workpiece will be burnt and a beautiful weld bead cannot be obtained In practical work the welding speed should not exceed 50 cnVmin ____________________________________ CTWD selection Increasing the CTWD can improve performance but too much overhang can lead to excessive sputtering wire breakage and unstable welding In general the CTWD should be 10 times the wire diameter ________________________________________ Shielding gas flow rate selection The main factor in the protective effect In addition the shielding effect when welding inner comers is better than when welding outer comers so the gas flow rate when welding inner comers should be less in FC AW mode fluxcored welding requires less shielding gas or it is not required at all See figure below to select a specific gas flow rate Gas flowrate selection Welding mode Welding Welding Welding with lite gage wire with heavy gage wire with heavy gage wire at high current Gas flowrate 1 min 15 20 5 15 5 20 25

Скачать