Transcription of TUNGSTEN ELECTRODES - CBL-welding
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TUNGSTEN ELECTRODES - CBL-welding
Pink WC 10Wh te WZ 8i lB ue WL 20 GreenlBack WL 10rBown WZ 4y 0 Gre WC 2 Turquoi 2se WS WT 20 Red 10 YelWT low WT30 LilacWT 40 OragenTUNGSTEN ELECTRODESW2 Alloy elementsThorium oxidesZirkonium oxidesLanthan oxidesCerium oxidesThOZrOLaOCeO22232 Rare materials ?????????????????????Why TUNGSTEN alloys? To improve the fusion point To improve ignition properties To improve arc control To avoid contamination of weld pool3 TungstenChemical designation=W3 Density= g/cmFusion point= CBoiling point=6,000 CUnalloyed TUNGSTEN (Pure TUNGSTEN ) Designation = W Colour code= GreenAdvantages AC welding, fine arc controlDisadvantages DC welding.
Handling of Tungsten electrodes Breaking a Tungsten electrode by hand has always been forbidden. The electrode should always be cut or ground, a very slow and expensive process, however,
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