Kemppi TTC 130 Operation Instructions Manual
Also see for 130: Operating manual
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TTC 130, TTC 130F, TTC 160, TTC 160S, TTC 220, TTC 200W, TTC 250W, – 7TTC 250WS/0109© COPYRIGHT KEMPPI OYI = 1...5 x d2.4. CHOICE OF ELECTRODE SIZE AND FLOW AMOUNTOF SHIELDING GASElectrode size and shielding gas flow are defined by welding current level. The most usualshielding gas for TIG welding is argon.The table below is given only as a guide.Welding current Electrode Gas nozzle Gas flow rateDC-(AC)A Ø mm Number Ø mm l/min5…80 1,0 4/5 6,5/8,0 5…6(5…50)70…150 1,6 4/5/6 6,5/8,0/9,5 6…7(30…100)130…250 2,4 6/7 9,5/11,0 7…8(80…150)220…350 3,2 7/8/10 11,0/12,5/16,0 8…10(120…210)330…500 4,0 10/11/12 16,0/17,5/19,0 10…12(180…280)Electrode Welding current Base materialType Symbol colour Fe Ss Al TiWC20 grey ACDC-WZ8 white ACDC-W green ACDC-2.4.1. Electrode choice according to base material to be weldedDelivery length of electrodes is 175 mm.Data in table are given only as a guide.2.5. SHARPENING OF ELECTRODE2.5.1. D.C. weldingIn D.C. welding the tip of electrode is sharpened into cone shape in order to get a steady arc andto concentrate heat energy on welding point. Size of sharpening angle has an effect on width ofwelding run and depth of penetration. Ratio of sharpening length to electrode diameter: |
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