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Self Shield
Flux Cored
自保護氣焊
Shear Stud
剪力釘
Plasma Cutting
Machine
等離子切割機
MMA
電焊
MIG
金屬惰性氣體焊接
TIG
氬弧焊
Welding
Accessories
焊接配件及耗材
Wire Feeder
送絲機
耗材 - 鎢絲
Electrodes
CK Worldwide
氬弧焊槍耗材 - 鎢絲 Electrodes
TIG welding electrodes usually contain small quantities of metallic oxides which can offer the following benefits:
• Facilitate arc starting
• Increase arc stability
• Improve current carrying capacity of the electrode
• Reduce risk of weld contamination
• Increase electrode life
Oxides used are primarily zirconium, thorium, lanthanum or cerium. Additions are usually 1% – 4%. These oxides greatly improve arc initiation, especially when direct current (DC) welding is employed.
Thorium oxide (thoria) has been used for many years, having been found effective in terms of long life and thermal efficiency. Zirconium oxide (zirconia) has been commonly used for alternating (AC) TIG welding, normally for welding aluminum.
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