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Teknik Las GTAW
Tabel 10.1 Ukuran kegelapan lensa kaca las.
Operasi Dia. Arus Busur Minimum No. Shade
Elektroda Las (A) Shade Disarankan
(mm)
SMAW << 2,5 << 60 7 -
2,5 – 4 60 – 160 8 10
4 – 6 160 – 250 10 12
GMAW dan << 60 7 -
FCAW 60 – 160 10 11
160 – 250 10 12
250 – 500 10 14
GTAW << 50 8 10
50 -150 8 12
150 – 500 10 14
Air Carbon (Light) << 500 10 12
Arc Cutting (Heavy) 500 -1000 11 14
Plasma arc << 20 6 6 – 8
welding 20 -100 8 10
100 – 400 10 12
400 – 800 11 14
Plasma arc (Light) << 300 8 9
cutting (Medium) 300 – 400 9 12
(Heavy) 400 – 800 10 14
Torch - - 3 atau 4
Brazing
Torch - - 2
Soldering
Gas 4 – 8
Welding
88 | Te k n i k L a s G T A W
