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tungsten spot welding electrode
Tungsten electrode has high melting point. It has excellent proporites for high temperature strength, creep resistance, electron emission. Moreover, tungsten is low coefficient of expansion and the lowest metal vapor pressure. In generally, we adopt powder metallurgy to produce tungsten alloy.
HOSO tungsten electrode typical specification
HOSOCP®900 pure tungsten | HOSOCP®922 tungsten lanthanum | HOSOCP®490 tugnsten heavy metal | HOSOCP®080 copper tungsten | |
W content (%wt.) | 99.95 | 99.0 | 90.0 | 80.0 |
Density (g/cm3) | 19.3 | 18.9 | 17.1 | 15.3 |
Hardness | 30 HRC | 28 HRC | 25 HRC | 98 HRB |
Electrical conductivity (%IACS) | 30 | 25 | 5-10 | 40 |
Thermal conductivity (W/m/0K) | 160 | 150 | 120 | 220 |
machining capability | - | + | ++ | +++ |
HOSO Metal design the electrode especially for the resistance welding. For more details refer to our tungstent electrode catalogue. Normally, Our tungsten electrode has two types:
1: pure tungsten electrode
2: tungsten-faced electrode, shank material copper, BeCu, or CuCrlZr.
HOSOCP900 pure tungsten | HOSOCP490 tungsten heavy alloy | HOSOCP922 tungsten oxide | HOSOCP202900 copper join tungsten by NDB | HOSOCP080 copper tungsten composite |
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